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• Geovany Silva Ching

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Personal protection: Countermeasures against Accidents

1

All the mechanical equipments produced by Jiangsu Muyang Group are equipped with safety devices, which are consistent with modern technical level and universally effective safety rules prior to ex works, so that the customers can use the machines in accordance with the regulations.

2

Enterprises are obligate to execute following regulations to guarantee operators' safety.

3

The coupling shield cap must be mounted and closed at any moment. It is very dangerous to personal safety, if they are open or disassembled. This point is also applicable for the preventive device of manipulator.

4

The safety limit switch should always be kept in good order. The safety limit switch may not be overlapped or discarded.

5

The grating cover plate, grid bar or guard grating are usually installed and delivered together with the machine. They can only be disassembled with tools. And the machines with such kind of devices can never put into work until the above-said devices have been properly installed.

6

The driving motor must be switched off completely when carrying out inspection, commissioning, repair and maintenance. This can be realized through a full-phase separating and lockable switch installed near the machine or on the operation desk and control panel on the site. It is not enough only to screw off the fuse wire!

7

If the machines need other energy like pneumatic, hydraulic, steam and hot water energy, it is necessary to cut off their energy supply or turn off the switch, and eliminate the pressure in the internal pipeline system of the machine.

8

As for handling heated or cooled parts and components of the machine, especial care should still be taken for the danger of burning possibility.

9

If you have pressed the emergency stop switch to stop the machine and you want to reset the switch, so it is not permissible to only re-press this button to restart the machine. And the machine can only be started by re-closing the main switch first.

10 If some machines are equipped with a local shutdown system, especial care should be taken. Read the instruction manuals attached with the machine carefully. In such machines with a local shutdown system, temperature will rise because of pressure or vacuum will occur after they have been used for a period. 11 If the operators employed cannot read or write, the owner has the duty to explain to them clearly where dangers exist and warn them special attention should be paid. 12

The cleaning, lubricating and oiling of the machine or its parts and components may be carried out only when the machine is stopped. If you must climb on or enter the machine to do such work, the mandatory provisions shall be made without exception: the power supply of motors must be cut off completely and the switch must be locked!

13

Be careful, sampling from inside the machine can never be carried out unless there is not any danger. Usually, the samples can be taken from the pipe under the machine instead of inside machine. 1

14

Clear off the deposited dust, dirties and materials frequently. Keeping the machine clean can enhance production safety and the cleaning level of workshop, and is also beneficial to dust explosion prevention.

15 If oil (grease) leakage occurs, clean it immediately and seal well the place where leakage occurs, for oil or grease leaked on the floor will easily bring about hazards to the operator. 16 In production operation, the machine must be equipped with safety devices, which may be neither removed and abandoned nor reduced in functions. Otherwise, we are not responsible for any accidents resulted here from, and reserve the right to ascertain where the responsibility lies. 17

Please execute the special regulations on accidents prevention in the operating instructions provided us.

18 Only the trained professionals are allowed to operate the machine and equipment manufactured by Muyang. 19 Measures for environmental protection If you decide not to use the machine any longer after the machine is used for a certain number of years, the measures for environmental protection and reutilization should be taken: drain the liquids inside the machine (like motor oil, gearbox oil, brake oil and coolant etc.) into special containers and send them to the preparation workshop. The plastic parts shall be picked out for reutilization. The metal parts shall be sorted out so as to be crushed or scraped. 20

Labor protection In order to guarantee the safety and health of labors during production process, it is necessary to

use labor protection articles (such as gloves, breathing masks and labor shoes) during operation.

2

Explosion protection: Countermeasures against Dust Explosion and Fire Hazard Common cleaning work (1) Keeping the working site with combustible dust clean is an important condition for safe production. (2) Try not to pile bagged or bulk materials between machines. (3) In order to reduce dust emission to surrounding areas, all conveying devices, cyclone separators and dust collectors should be kept in good condition. Especially, the unsealing phenomena of pipes or top covers should be avoided. (4) In order to reduce dust explosion hazard, dust everywhere must be cleaned out frequently and effectively. (5) Keep all motors free of deposited dust. Frequent inspection and maintenance (1) Regularly check the safety devices such as speed monitor or the like, at least once a week. (2) Check and clean all the magnetic separators regularly, at least once a day. (3) In order to avoid heat generation, it is necessary to regularly check the functions of all main shafts and bearings, at least once a week, and to regularly carry out lubricating. Electric apparatus Regularly check the electric apparatus and articles, and special attention should be paid to the following points: (1) It is forbidden to use any flashlights and other lamps without shielding or explosion-proof glass. (2) It is forbidden to use any lengthened cable or electric furnace. (3) It is necessary to immediately repair or replace the electric devices and equipment if any failure occurs. (4) The cables without conduits are not allowed to be installed on the floor. (5) Cut off power supply of the machine when going off work. (6) An electrician should be assigned to check the insulation of all the lines of electric network according to relevant regulations on heavy current, at least once a year. Smoking and welding (1) Smoking is prohibited, which is applicable to all workers and staff of the enterprise as well as guests, customers, foreigners and drivers visiting the factory. (2) If the tools such as welding machine or soldering lamp (flame soldering lamp) etc. are required for repair or installation, do as best as possible to arrange the work in a special workshop or on a special site. (3) If it is necessary to carry out welding or the like directly in production area or storehouse once in a while, written applications must be submitted to a related supervisor in advance for written approval. 3

The above mentioned operations can be carried out only when special safety measures have been taken, such as laying pieces of water soaked canvas or canvas special for covering on the surrounding area and preparing fire extinguishers. After completion of the operation, the welding site and the surrounding area are to be monitored at least for 10h. The gas cutting sparks are very dangerous, for people can't see where they will fly on earth. They can cross through the narrow clearance of walls and drop downstairs or to the next rooms, or even fly off 10 m away in distance. If the sparks drop in dusts, fire accidents may occur at any time. (4) Welding is prohibited on a running conveyor. If the welding work is necessary, shut down the machine first, and then make a thorough cleaning and isolate both sides of the welding site tightly with materials like mineral wool to avoid connecting with other conveying devices, silos or tanks. If the work is to be done on the chutes or conveying pipes, it is necessary to disassemble them or divert their lower ends and seal them to avoid welding sparks entering the conveying pipes or silos.

Effect of static electricity In order to ensure the safety of electric circuits and avoid explosion resulted from spark discharge, the paint coat at the electric connections must be removed.

4

Safety I. Safety Points (1) It is prohibited to open the operating gate until the machine has been fully stopped. (2) The main switch must be shut off and locked for all maintenance and inspection work. (3) Electric installation and the treatment of conducting parts can only be done by specialized persons in accordance with the related electric safety standards. (4) The mixer must be run on the condition that all accident precaution regulations are strictly observed. Whoever takes off guarder or make it dysfunctional should be responsible for the safety result. (5) In case maintenance and inspection work should be done with a welder or other tools that can generate sparks, strict safety precautions must be taken against dust explosion and combustion (see “Explosion proof : Countermeasures against Dust Explosion and Fire Hazard”). (6) When the mixer is under stoppage, attention must be taken to prevent it from being started by any starting mode. (7) It is not allowed to take off the guard shields for chain wheels and two air cylinders. (8) The safety mechanism of the operating gate is equipped with an interlocked limit switch for opening. It must be correctly wired as per requirement so as to ensure the power-off of the machine when the operating gate is opened, and additionally in such case the machine can not be started. Owing to the fact that this safety mechanism is related to life safety, it can never be removed or discarded! Whenever there is anything wrong with this mechanism, it should be repaired or renewed promptly. (9) It is forbidden to approach the rotating components by finger during running of the machine. The inspection, maintenance and cleaning work may be done only after the mixer rotor has been completely stopped. 10. Safety of the electric system Before the electric circuit is cut off, it is strictly prohibited to open the terminal box for avoiding electric shock. The control system of the mixer must be supplied by Jiangsu Muyang Group Co., Ltd. or checked by an expert from Muyang before commissioning, otherwise the technical safety responsibility of the supplier will be dispelled. Electric control is a component part of the safety regulations for accident precaution. Prior to commissioning the control system must be tested by the expert from Jiangsu Muyang Group in light of the testing list and a permit will be signed by him. If the control system for Muyang machinery equipment is not used as per the conditions mentioned above, the Muyang Group will refuse to take any responsibility. If the Muyang Group is required to take responsibility, the Group will reserve the right to investigate and affix the responsibility of the operator. If the control system for Muyang machinery equipment is not used as per the conditions mentioned above, the Muyang Group will refuse to take any responsibility. If the Muyang Group is required to take responsibility, the Group will reserve the right to investigate and affix the responsibility of the operator. 5

Safety II. Explanation of safety marks 1. Safety mark of "Beware of electric shock": Do not open the junction box of the motor until it is switched off to avoid personal injury. 2. Safety mark near the operation gate. Injury to your hand or head When opening the operation gate.

3. Safety mark "Beware of injury from the machine": Do not contact running parts with hands when the machine is running. The inspection, repair, disassembly or replacement etc. can be carried out only after the machine is stopped. 4. Safety mark of “Do not remove the safety guard shield“. Do not remove the safety guard shield when the machine is running or has not been completely stopped. 5. Marks of rotating direction, which specify the correct rotation directions. Do not rotate reversely, to avoid any damage of the equipment.

6

Safety III. Schematic diagram of safety marks ①

② ③

Fig. 1 Schematic diagram of safety marks

①Safety mark near the operation gate

②Safety mark of “Beware of injuries from the machine”

③Safety mark of “Do not remove the safety guard shield

④Safety mark of "Beware of electric shock"

7

Safety IV. Attention points 1. The operation, checking and maintenance etc. of machine or equipment can only be carried out by the qualified professionals trained by Muyang Group. 2. Whenever maintenance or repairing is to be done the power must be cut off first so as to prevent the motor from accidental staring. 3. All related employees should receive safety education, the enterprise management should be in charge of it, and the national, local or the other internal safety regulations of the enterprise should be observed. 4. The machine must not be used for the applications which are not in the application range. 5. The safety marks must be kept clean and can not be taken off or covered. 6. The safety guards can never be dismounted, covered or overlapped willfully, and can never be opened until the machine has completely stopped. And the machine can only be started when these safety guards are in good order functionally. 7. The damaged parts must be repaired or replaced promptly. 8. For transportation and handling, it is not allowed to damage the equipment by bundling. In case there is any machine damage or missing of parts found in transportation or handling, it should be reported to the management immediately. 9. Prior to installation, all machine parts must be kept in their original packages. The machine parts and packing boxes should be properly covered and stored in places sheltered from rain, sunning and damp. The permissible load of hoister should higher than the equipment weight. As hoisting, only the hoisting points assigned on the machine can be used; the hoisting ropes must be fixed correctly and reliably; and no one is allowed to be under the equipment being hoisted. In installation, enough space should be reserved for future maintenance and replacement of the equipment.

8

Safety V. Noise data Noise testing Noise testing method and condition:

dB（A）

Noise – pressure level

LP≤

Idling noise – power level

LW≤ 90

Noise in test-surface – pressure level

LP=

74

dB（A）

Test-surface specifications

LS=

16

dB（A）

Equivalent noise – power level

Lweq=

-

dB（A）

-

dB（A）

VI. Vibration data The vibration can not exceed 12 mm/s under effects of many complicated environments.

9

Briefing of the mixer I. General 1. Application and adaptability SLHSJ series double-shaft paddle mixer is widely used for mixing powdery, granular, flaky, blocky, sticky and miscellaneous materials in feed, cereal, food, chemicals, pharmaceutical and pesticide industries. 2. Features of the machine: 2.1 Short mixing period and high mixing homogeneity: For common materials the mixing homogeneity can reach CV≤5% within 45s~60s, thus shortening mixing time and greatly improving the production efficiency of the feed mill; 2.2 No mixture segregation: After homogenous mixing, the mixture will not be graded in further mixing, therefore segregation due to the great difference in specific gravity or granularity of materials will not occur, resulting in a mixture with highly accurate proportions; 2.3 Fast discharging and little residues: The full-bottom double-leaf discharge gate features fast discharging with little residues; 2.2 No mixture segregation: After homogenous mixing, the mixture will not be graded in further mixing, therefore segregation due to the great difference in specific gravity or granularity of materials will not occur, resulting in a mixture with highly accurate proportions; 2.3 Fast discharging and little residues: The full-bottom double-leaf discharge gate features fast discharging with little residues; 2.4 Great amount of liquid addition: Several kinds of liquid can be added according to demands; 2.5 With gentle mixing action, it can also be used for drying or cooling: The mixing action is so gentle and free of damage to the original properties of materials that it can be used for drying or cooling through adding a hot or cold air system; 2.6 Three-row chains are used for the sprocket & chain system, and two rotors rotating in opposite directions driven by a cycloid-pin gear speed reducer, featuring unique driving mechanism, smooth running, high torque and low abrasion; 2.7 An unique chain take-up adopted, which is easy assembling, quick disassembling and convenient adjustment; 2.8 The unique W-shaped trough structure with small opening, big middle part and narrow lower part make the machine fine and unique shape and appearance with small floor space required and reduced residue; 2.9 As Muyang’s mature technology, the discharge gate sealing mechanism adopted improves the reliability of sealing. 3. Operating conditions 3.1 Material characteristics Particle size of intake ingredient particles:

Length of edge not exceeding 80mm

Bulk density:

0.15～0.8 kg·dm-3

10

3.2 Environment conditions Ambient temperature for normal operation ranges -10 ～ +40

℃,

and the machine should be

customized in case this condition can not be complied with. Relative humidity for normal operation is within 85%, it is necessary to customize the geared motor if this condition can not be complied with. Elevation for normal operation is below 1000 meters, it is necessary to customize the geared motor if this condition can not be met.

℃

Temperature for normal transportation is within the range of -25～55 . 3.3 Arrangement conditions Upstream and downstream equipment should be matchable with the mixer technologically. Power for normal operating shall be within the tolerance range of ±10% V, ±1 Hz. Power for the users shall be equipped with over-load protection system.

11

Briefing of the mixer 4. Composition of the model and its meaning S

LH

SJ

□ □ Improved model: Version No. 3

Product specification: effective volume (m ) Code of the model: double-shaft paddle Code of the variety: screw mixer Code of specialty: feed processing equipment

II. Main technical parameters See Table 1 for main technical parameters and Table 2 for relation between actual volume and mixing capacity of each batch.

Table 1 Main technical parameters

Item

Power (kW)

Duration for each mixing batch (s)

Homogeneity Weight (kg) (CV)

Model SLHSJ10A

55

≤5%

11340

SLHSJ8A

45

≤5%

8800

SLHSJ7A

45

≤5%

8650

SLHSJ4W

30/37

≤5%

6720

SLHSJ3A

22

≤5%

5600

≤5%

5180

≤5%

2420

≤5%

1360

≤5%

1210

SLHSJ2A

18.5/22

SLHSJ1A

11/15

SLHSJ0.5A

5.5/7.5

SLHSJ0.35

4

～

45S 60 (The time can be prolonged properly according to different materials)

A SLHSJ0.2A

2.2

≤5%

720

SLHSJ0.1A

2.2

≤5%

620

SLHSJ0.06

1.1 ≤5%

370

A

12

Briefing of the mixer Table 2 Relation between actual volume and mixing capacity of each batch Item Capacity (kg/bat.) Model SLHSJ10A

5000

SLHSJ8A

4000

SLHSJ7A

3500

SLHSJ4W

2000

SLHSJ3A

1500

SLHSJ2A

1000

SLHSJ1A

500

SLHSJ0.5A

250

SLHSJ0.35A

175

SLHSJ0.2A

100

SLHSJ0.1A

50

SLHSJ0.06A

25

3

Fill modulus

Volume (m )

～0.8 0.4～0.8 0.4～0.8 0.4～0.8 0.4～1 0.4～1.4 0.4～1.4 0.4～1.4 0.4～1.4 0.4～1.4 0.4～1.4 0.4～1.4

～8 3.2～7 2.8～6 1.6～3.5 1.2～3 0.8～2.8 0.4～1.4 0.2～0.7 0.14～0.49 0.08～0.28 0.04～0.14 0.024～0.084

0.4

4

Remarks

Calculate according to mixing capacity of each batch when bulk 0.6; and density of materials according to volume when bulk density of materials ≤ 0.6

＞

Calculate according to mixing capacity of each batch when bulk density of materials 0.5; and according to volume when bulk density of materials ≤ 0.5

＞

III. Working principle and structural feature 1. Working principle The machine consists of two rotors rotating in opposite directions, and the rotors are welded with multiple paddles in special angles. The paddles bring about materials rotating along the internal walls of the trough counterclockwise and at the same time make the materials turn over both leftward and rightward. A weight-loss zone is formed at the crossing and overlapping position between the two rotors, in which whatever shape, size and density of the materials may be, they will be floated upward and instantly in a weight losing state. Thus all the materials in the trough are turned over continuously and circularly, and interlaced and sheared each other, so as to reach a fast but gentle mixing effect with good homogeneity. 2. Overall structure The mixer is composed of a machine body, a rotor, a top cover and a liquid addition device, the rotor is installed on the machine body through bearings with pedestal on both ends and driven by a geared motor, there is a discharge gate on the machine body, which is controlled for auto opening and closing by the cylinder according to mixing period; there are two feeding inlets on the top cover for adding main material and additives, there is also an observation port and a sampling port on the top cover. Schematic diagram for structure of the complete machine is shown in Fig. 2.

13

Briefing of the mixer

1. Air return pipe 2. Observation gate 3. Machine body 4. Drive device 5. Rotor 6. Oil-adding device 7. Feeding inlet 8. Geared motor Fig. 2 Schematic diagram for structure of the complete machine 3. Structure of main components 3.1 Rotor The rotor is composed of rotor I and rotor II with an angle for 45 degree, and it is driven by the geared motor through the sprocket. 3.2 Pneumatic control is applied for the discharge gate.

14

Briefing of the mixer The pneumatic control of the discharge gate consists of a cylinder, a connecting lever, an adaptor, a rocking arm, a twin-rocking lever, an universal driving shaft and a travel limit switch (see Fig. 3). The discharge gate is installed on the universal driving shaft, which is connected with the rocking arm, while the rocking arm is hinged with the connecting lever, and the connecting lever is hinged with the twin-rocking lever. The cylinder makes reciprocating movement and rotates the universal driving shaft

Fig. 3

5: Twin-rocking bar 6: Left nut 7: Nut 8: Adaptor 9: Cylinder

1:Travel limit switch 2:Rocking arm 3:Connecting lever 4:Universal Driving shaft

through the twin-rocking lever, thus to open or close the two discharge gates at the bottom.

1:Travel limit switch 2:Rocking arm 3:Connecting lever 4:Universal Driving shaft 5: Twin-rocking bar 6: Left nut 7: Nut 8: Adaptor 9: Cylinder Fig. 3 15

Briefing of the mixer 3.3 Sealing of discharge gate There are sealing members mounted at two discharge gates and gate frames at lower part of the casing. When the gates are closed, the side surface of the gate body clings tightly to the rubber-sealing strip on the sealing member to avoid material leakage. Damaged or aged sealing strips can be replaced with new ones, if necessary, the length of the connecting lever can be adjusted to keep the gate body tightly cling to the trough, so as to reach a good sealing effect. 3.4 Liquid addition Liquid addition pipe is installed below the machine cover and consists of pipes and nozzles etc. Liquid is sprayed out in a sector from the nozzles. Several nozzles are evenly distributed on the whole length of the casing. The standard quantity of nozzles for different mixers refers to the table as follows:

Types of

SLHSJ

SLHSJ

mixer

0.2A, 0.35A, 0.5A

1A, 2A, 3A

3

5

Quantity of nozzles

SLHSJ 4W

SLHSJ 7A, 8A, 10A

7

Note: SLHSJ 0.1 and SLHSJ 0.06 are not equipped with liquid addition devices.

16

16

Production process Production process (Fig. 4) 1. Feeding 1.1 Solid material The material can be directly fed from the bin controlled by a gate, and also can be fed through a conveying equipment or a feeding gate by hand. 1.2 Liquid material (if required) Usually, the liquid can be added through a liquid addition system. 1.3 Please declare in advance when ordering if added oil is >5%. 2. Discharging The mixture conveyed from the mixer shall be collected by a surge bin, the volume of which shall be 1.5 times more than that of the mixer; the surge bin usually has an access door (manhole) and a glass inspection window; and the lower part shall have a gate or a conveying equipment; in addition, the surge bin shall be removable for maintainability; and the surge bin shall not be contaminated by dust and an environment protection device can be equipped at the outlet.

液体添加系统工程 Liquid adding system 混合机 Mixer 缓冲仓 Surge bin Fig. 4 Diagram of production process

17

Transportation and installation I. Transportation 1. Hoisting Hoisting device on the machine body shall be correctly used when hoisting (see Fig. 5 for hoisting diagram of machine body); the cable rope for hoisting should be strong enough to bear the weight of the machine to be hoisted (see Table 1 for weights of equipments), and can not be too short.

Fig. 5 Hoisting diagram for machine body 2. Transportation When the machine is to be delivered out of the manufacturer plant, a decision can be made on whether a package box is to used in accordance with the actual condition. If a package box is not to be used, weather-tight measures should be taken in transportation, and the equipment should be protected against collision and overturning. When packing, the machine and accessory parts should be fixed rigidly in the packing box, and clearances should be reserved between them and the walls of the box for avoiding any collision damage in transportation. In case of excessive height of the machine, it should be split into parts for easy transportation. DO NOT overturn, heavily press and impact the machine body in transportation. SLHSJ 4W and smaller mixers can be packed in containers for transportation. 3. Storage Rainproof, sun-proof and anti-seeping facilities shall be equipped when stored in the open air, measures for good ventilation and damp proof shall be taken when stored indoors. For long term storage, the machine should be kept in an aerated, dry and cool place, and measures should be taken for whether-tightness, and the revealed surfaces should be coated with corrosion-inhibitive oil. 18

II. Unpacking inspection When the machine has been delivered to destination site, open the package and check against the packing list for any collision and wearing in transportation, carefully check the attached and documents and accessory parts delivered with the machine, and take a unpacking record well.

19

Transportation and installation III. Mechanical installation 1. Scaled drawing of machine (see Fig. 6A, 6B, 6C and Table 3)

(Refers to SLHSJ 2A and SLHSJ 3A)

俯视地脚图：Top view for foundation C 向：C-view Fig. 6 A 图 6 A

20

Transportation and installation

Top view for foundation C-view

C-view (a feeding inlet of them)

Fig. 6 B (Refers to SLHSJ0.06A, SLHSJ0.1A, SLHSJ0.2A, SLHSJ0.35A, SLHSJ0.5A, SLHSJ1A, SLHSJ7A, SLHSJ8A and SLHSJ10A etc., and a feeding inlet of them refers to SLHSJ 0.1A, SLHSJ0.2A, SLHSJ0.35A 和 SLHSJ1A.)

21

Transportation and installation

(Refers to scaled drawing for installation of SLHS4W) Fig. 6 C

22

Transportation and installation

Table 3 Type Code

SLHSJ 0.06A

SLHSJ 0.1A

SLHSJ 0.2A

SLHSJ 0.35A

SLHSJ 0.5A

SLHSJ 1A

SLHSJ 2A

SLHSJ 3A

SLHSJ 7A

SLHSJ 8A

SLHSJ 10A

A B C D E F

768 710

960 965

1140 1005

1330 1140

1480 1228

1028 1615

1766 2412

1880 2788

1140 830 1305

1268 970 1475

1541 1116 1683

1733 1280 1890

2070 1450 2205

1300 2105 3094 2682 1980

1766 2412

953 668 1095

1300 2105 3029 2682 1980

6×150 6×170 5×222 (=900) (=1020) (=1110)

G

5×142 (=710)

H I

660 750

840 940

970 1070

1060 1160

J

4×152.5 (=610)

7×110 (=770)

5×180 (=900)

5×210 (=1050)

558 650

710 810

850 950

1000 1100

K L M N P Q R

2×140 (=280)

S

2×165 (=330)

2×165 (=330)

T

250×250 300×300 300×300

U

300×300 360×360 360×360

V W X n1×d1 n2×d2 n3×d3

18×φ9

150

200

250

230

200

200

26×φ11 22×φ12.5 20×φ13 8×φ11

8×φ11

8×φ11

3110 3428 2440 2740 3482 3481 10×150 10×150 10×167 6×200 4×288 10×167 (=1500 (=1500 (=1670 (=1200) (=1152) (=1670) ) ) ) 1160 1098 1440 1440 1604 1604 1260 1200 1550 1550 1720 1720 4×375 10×193 10×193 10×238 16×167. 5×242 (=1500 (=1930 (=1930 (=2380 5 (=1210) ) ) ) ) (=2680) 1150 1430 1846 1846 2300 2600 1250 1550 1970 1970 2428 2728 766 853 843 983 1133 1599 1599 2×400 2×400 340 500 500 (=800) (=800) 2×320 2×310 2×330 2×330 340 (=640) (=620) (=660) (=660) 1090 1659 1659 2×165 2×165 4×135 4×135 2×265 2×265 (=330) (=330) (=540) (=540) (=530) (=530) 300×30 500×50 500×50 500×50 300×300 500×500 0 0 0 0 360×36 580×58 580×58 560×56 360×360 560×560 0 0 0 0 200 250 290 290 500 500 500 1194 1194 1000 1000 350 4×φ22 5×φ26 5×φ26 7×φ32 7×φ32 16×φ1 40×φ1 40×φ1 40×φ12. 52×φ12. 24×φ13.5 6 4 4 5 5 32×φ1 32×φ1 16×φ12. 16×φ11 8×φ11 16×φ12.5 0 0 5

23

3528 2780 3692 6×375 (=2250) 2180 2300 8×337 (=2696) 2618 2750 1290 500 2×320 (=640) 1869 2×325 (=650) 600×600 700×700 450 1200 5×φ32 28×φ13.5 16×φ12.5

Transportation and installation 2. Installation requirement 2.1 The mixer is delivered generally as a complete set. Firstly check for any damage during transportation when unpacking; 2.2 Installation jobsite should be firm and roomy. Remain an enough space for maintenance and replacement of fittings (Please refer to the scaled drawing for installation of the mixer provided when ordering). A proper maintenance platform and staircase should be provided, the inclination angle of the staircase should be ≤50° and shall be equipped with guardrails. (Fig.7.

Schematic diagram for

installation of the machine).

Fig. 7 Schematic diagram for installation of the machine 2.3 The mixer should be positioned horizontally in a place, where should be level with a certain rigidity to ensure stable operation. The speed reducer is installed on the machine base, which should be connected not only with the mainframe by bolts, but also with foundation bolts firmly, otherwise, the machine will vibrate and even an accident will occur if it is serious. For SLHSJ4W and models shown above this, it is required to pre-embed the foundation bolts connecting with the machine base, see Fig. 8 Drawing for pre-embedding of foundation bolts and Table 4 Parameters of the foundation bolts.

24

Transportation and installation

Fig. 8 Drawing for pre-embedding of foundation bolts Table 4 Parameters of the foundation bolts Total upward tensile force (N)

Quantity of foundation bolts

Dimensions of foundation bolts

SLHSJ1A

2.7×104

4

M18

SLHSJ2A

3.2×104

5

M 22

SLHSJ3A

3.4×104

5

M 22

SLHSJ4W

5×104

5

M22

SLHSJ7A

7.1×104

7

M27

SLHSJ8A

7.6×104

7

M27

SLHSJ10A

10.1×104

5

M27

Parameters Types

2.4 The directional angle of the two rotors shall be adjusted according to rotating direction of the indicating plates, which are installed at the end surfaces of the two main shafts. The indicating plates at the end surfaces of two big sprockets should be aligned. The take-up sprocket 3 should be turned to the loosest position and then the chain should be so mounted that the indicating arrows on the sprockets of two main shafts can be in the same horizontal line. The chain should be tensioned properly for smooth driving and rotating in a direction consistent with that shown in Fig. 5, and at last the hood shield is to installed.

25

Transportation and installation

f=

1 L 50

1 小链轮 2 大链轮 3 张紧链轮 1. Small sprocket 2. Big sprocket 3. Take-up sprocket Fig. 9 Rotating direction of the sprockets and chains Note: The chains of SLHSJ1A and the models shown below manufactured by Muyang have been installed already, readjustment is not necessary if they have not been removed. 2.5 The feeding inlet is jointed with the opening in the top cover according to technological requirement; if there is no special requirement raised, the inlet is already prepared prior to shipping according to the scale drawing. The bottom is a full-length double-leaf discharge gate, and the opening for discharging to be connected is the flange on the machine casing. A hopper with matched volume should be installed below the machine body. 2.6 The inlet flange of liquid addition pipeline should be connected with the outlet flange of oil supply system; the dimensions for inlet flange of the pipeline refer to Fig. 10 and Table 5:

Fig. 10 Drawing of flanges

26

Transportation and installation

Table 5 Dimensions of flanges

Dimensions Types SLHSJ0.2A SLHSJ 0.35A SLHSJ 0.5A SLHSJ1A SLHSJ2A SLHSJ3A SLHSJ4W

d1

d2

d3

d4

L

14

65

23

95

14

14

85

35

115

12

14

85

43

115

12

3. Adjustment requirements 3.1 Four big and small sprockets should be in the same vertical plane; 3.2 Check the opening and closing state of the discharge gate, adjust the pressure in the cylinder and the position of limit switches, so that the discharge gate can be leveled off to the casing bottom and reach a certain angle when it is opened, and the cylinder can run smoothly with proper speed; if the gate body cannot be fitted with the trough, the connecting levers can be adjusted

to keep the gate

body tightly cling to the trough. When adjusting the connecting levers, it is necessary to ensure that the tensile force of the connecting levers at both ends of the same gate can be identical relatively, otherwise, the discharge gate will shake. 3.3 Firstly inch the machine idly for a cycle prior to feeding, and then carry out an idle running after no collision and friction at the crossing or overlapping position has been confirmed.

IV. Installation of pneumatic part Note: There is no electric gate if a pneumatic part is adopted. 1. Working principle (Fig. 11)

27

1. Cylinder 2. Two-position five-way solenoid reversal valve 3. Throttle 4. Manual switch 5. Oil mist lubricator 6.Moisture trap-filter 7. Filter core 8. Hand wheel 9. Brake knob Fig. 11 Functional diagram for pneumatic control

28

Transportation and installation 2. Installation requirements 2.1 Use an air compressor with a rated working pressure of 0.7~0.8 MPa (the flow rate of the models SLHSJ2 and above≥80L/min, pressure and flow rate of the models SLHSJ1 and below can be reduced accordingly) to generate compressed air as the source unit to ensure the cylinder has a working pressure of about 0.6 MPa. 2.2 Turn on the air source pipeline, check whether the connection of pipes is reliable or not, and then fill proper amount of lubricating oil in oil mist lubricator 5 as required; the type of lubricating oil: turbine oil VG32 or sewing machine oil. 2.2 Turn on the air source pipeline, check whether the connection of pipes is reliable, and then fill proper amount of lubricating oil in atomized lubricator 5 as required; the type of lubricating oil: turbine oil VG32 or sewing machine oil. 2.3 Prior to turning on the air source, raise the hand wheel upward and turn the hand wheel 8 on the reducing valve counter-clockwise to make the fixed value spring of the valve unloaded, and then turn on the air source and the hand wheel clockwise to increase the pressure gradually till the required working pressure is indicated in the dial gauge of the manometer, lastly lock the hand wheel 8 tightly by brake knob 9 to ensure the system running under working pressure. 2.4 When working without load under specified working pressure, allow the cylinder act through the two-position five-way solenoid reversal valve 2 by means of the manual switch 4 to check whether the cylinder and air supply system are in a normal condition or not. 2.5 For loaded working, first adjust the switch of one-way throttle 3 to control the flow, so that the cylinder piston can make speed adjustment in a wider range. 2.6 When working with normal load, switch on the solenoid valve to allow the two-position five-way solenoid reversal valve 2 to accept electrical and air signals to change flow direction of compressed air and push the cylinder to act, so as to realize automatic control of pneumatic driving. 2.7 Check the oil level of oil mist lubricator 5 and the water level of air trap-filter 6 regularly. Supplement oil timely when the oil level is close to the lowest oil level, and drain timely when the water level is close to filter core 7 and close the discharge valve when the water is about to be exhausted; as for new type of water strainer, when air pressure drops to zero, the spring returns to its original position and water is drained automatically after the completion of production.

V. Installation of electric gate Note: There is no pneumatic part if an electric gate is adopted. The mechanism consists of universal driving shaft 1, discharge rocking handle 2, electric push rod 3, and its support 4 and base plate 5 etc. (see Fig.12). The opening and closing of the discharge gate mechanism is realized by changing the telescopic motion of the screw in electric push rod 3 into rotary movement of the universal driving shaft 1 by means of discharge rocking handle 2. 29

Fig. 12 shows the opening condition of the discharge gate when electric push rod 3 is retracted. When the electrical signal to close discharge gate is received, electric push rod 3 acts and the screw is extended out to push discharge rocking handle 2 to rotate in a certain angle clockwise. At the same time, discharge rocking handle 2 brings along the universal driving shaft 1 to rotate, so that the discharge gate mechanism fixed on universal driving shaft 1 rotates in a certain angle as well, thus the discharge gate is closed. Now, the extended electric push rod 3 holds up against the discharge gate mechanism tightly and closes the discharge gate hardly, so that the limit switch on electric push rod 3 switches off the circuit and the screw stops extending. When electric push rod 3 receives another electric signal to open discharge gate, the circuit closes, electric push rod 3 acts, the screw draws back and pulls the discharge rocking handle 2 to turn counterclockwise, and the universal driving shaft 1 and the discharge gate mechanism rotate back in the same angle, thus the discharge gate is opened to discharge the mixed materials. When the screw draws back to the preset stroke, the electric push rod holds up against another limit switch to cut off the circuit and the screw stops drawing back. It goes round and round, thus finishing the action of opening and closing. When the electric push rod extends to a designated position, the discharge gate closes down, and it cannot bump against the limit switch at the front end. If the time is too long, the motor and the screw of the push rod will be damaged; therefore, the customers should pay attention to adjusting the position of limit switch prior to use. When the gate is opened or closed to the set position and just bump against the limit switch, the electric push rod will not be damaged. If a certain amount of materials adheres to the gate body after a period of use, the screw cannot bump against the travel limit switch due to adhering materials; therefore, it is necessary to clean the adhering materials regularly.

1. Universal driving shaft 2. Discharge rocking handle 3. Electric push rod 4. Support of electric push rod 5. Base plate of support 6. Limit switch Fig. 12 Electric control mechanism

30

Transportation and installation Important notes The control system of the mixer should be provided by Jiangsu Muyang Group or inspected by an expert from Jiangsu Muyang Group before commissioning; otherwise, technical safety responsibility of the Supplier will be dispelled. The electric control is a component part of safety stipulations for accident prevention. The control system should be inspected by an expert from Jiangsu Muyang Group according to the inspection list and the expert shall issue a certificate accordingly before commissioning. If the abovementioned articles for the control system of the equipment provided by Jiangsu Muyang Group are not implemented, Jiangsu Muyang Group will not bear the related responsibilities. And if responsibilities are requested to be borne by Jiangsu Muyang Group, Jiangsu Muyang Group shall reserve the right to affix the responsibility of the operators.

31

Transportation and installation VI. Electric installation 1. Electric connection The wire chases in central control room must be protected, and the central control room should be clean without any dirt or dust. Refer to Fig.13.

双轴桨叶混合机 Twin-shaft paddle mixer 总控制室 Central control room Fig. 13 Arrangement of electric connection 2. Schematic diagram of electric control See pages 28～35 for the schematic diagram of electric control. Electric gate: refer to pages 28～29 for schematic diagram of electric control and description on page 34. Page 28 Schematic diagram I of the electric control of twin-shaft paddle mixer (electric gate) Page 29 Schematic diagram II of the electric control of twin-shaft paddle mixer (electric gate) Pneumatic gate: refer to pages 30～34 for schematic diagram of electric control and description on page 35. Page 30 Model SLHSJ0.06A/0.1A/0.2A/0.35A Schematic diagram for the electric control of twin-shaft paddle mixer III (pneumatic gate) Page 31 Model SLHSJ0.5A/1A Schematic diagram IV for the electric control of twin-shaft paddle mixer (pneumatic gate) Page 32～34 Model SLHSJ2A/3A/4W/7A/8A/10A Schematic diagram V for the electric control of twin-shaft paddle mixer (pneumatic gate) Schematic diagram VI for the electric control of twin-shaft paddle mixer (pneumatic gate) Schematic diagram VII for the electric control of twin-shaft paddle mixer (pneumatic gate)

32

Transportation and installation

M3

3 W 3V 3 U

乙杆 推动 电

1 W 1 V 1 U

M2 M1

KM1

QF1

L11 L21 L31

2 W 2 V 2 U

甲杆 推动 电

机电 合混

PE

L1 L2 L3 N

QF

AC 3P / N / PE 380V & 50Hz

QF2

KM2+

KM2-

QF3

KM3+

KM3-

Schematic diagram I for the electric control of twin-shaft paddle mixer (electric gate)

混合电机 motor for mixing 电动推杆甲 electric push rod A 电动推杆乙 electric push rod B

33

Transportation and installation Schematic diagram II of the electric control of twin-shaft paddle mixer (electric gate)

急停+安全门开关 emergency stop + safety gate switch 混合电机启停 start and stop of the motor for mixing 混合启停 start and stop of mixing 混合延时 mixing time delay 关门 gate closing 开门延时 gate

开门 gate opening 开门到位 gate opened to the designated position 关门到位

opening time delay

gate closed to the designated posit 开门指示 gate opening indicator 关门指示 gate closing indicator Note: Specification of all control cables is 0.75mm2.

8AK 6AK

74 1

8QS 7QS 6QS 5QS

54 1

6 4 1 4 4 1 3 4 1 2 4 1

1TK

AS

2BS

50 1

POT S-E

20 1

1 1 1

2FQ

3 0 1

3FQ

1MK 3BS

1 4 1 4 3 1 2 3 1

5 2 1 3 2 1 1 2 1

6AK 5AK

3 3 1

8AK 7AK

8AK

2TK

6 2 1 4 2 1 2 2 1

5 1 1

2 1 1

4 0 1

5 3 1

1QS

3LH 1LH

8AK 7AK 6AK 5AK -3M K -2M K 2TK +3M K +2M K 1TK

位 到 门 开

门 开 时 延 门 开 门 关 时 延 合 混 停 启 合 混

2AK

停 启 机 电 合 混 关 开 门 全 安 ＋ 停 急

1MK 5 0 1

N

L11

UF A1

10 1

4 1 1

1FQ

01 1

-3M K -2M K

7AK

5BS

31 1

+3M K +2M K

1 3 1

2AK 4BS

5LH 4LH

8 4 1

2

7AK 5AK

示 指 关 门 示 指 开 门 位 到 门 关

34

。 mm5 7.0 为 均 格 规 缆 电 制 控 有 所 ： 明 说

Transportation and installation Schematic diagram III of the electric control of twin-shaft paddle mixer (pneumatic gate)

急停+安全门开关 emergency stop + safety gate switch 混合电机启停 start and stop of the motor for mixing 混合启停 start and stop of mixing 混合延时 mixing time delay 关门 gate closing 开门延时 gate

开门 gate opening 开门到位 gate opened to the designated position 关门到位

opening time delay

gate closed to the designated posit 开门指示 gate opening indicator 关门指示 gate closing indicator

4 A K

4 2 1

4 L H

3 A K

3 2 1

3 L H

4 Q S

2 2 1

4 A K

3 Q S

1 2 1

3 A K

1 T K

示 指 关 门 示 指 开 门 位 到 门 关 位 到 门 开

门 开

1 V Y 7 1 1

A S

时 延 门 开 时 延 合 混

2 T K 6 1 1

4 A K

2 A K

1 T K 2 L H

3 1 1

4 B S

5 B S

2 T K

4 1 1

1 L H 2 1 1

3 B S

1 M K

关 开 门 全 安 ＋ 停 急

P O T S E

KM1

QF1

N PE

N

L11 L1 L2 L3

AC 3P / N / PE 380V & 50Hz

A 1

2 0 1

1 1 1

1 F Q

停 启 机 电 合 混

W V U

M1

5 0 1

1 U F

0 1 1

2 A K

5 1 1

1 M K 2 B S

停 启 合 混

Note: This diagram is applicable for SLHSJ0.06A，SLHSJ0.1A, SLHSJ0.2A and SLHSJ0.35A. 35

Transportation and installation 4A K

4 2 1

4L H

3A K

3 2 1

3L H

4Q S

2 2 1

4A K

3Q S

1 2 1

3A K

1T K

示指 关门 示指 开门 位到 门关 位到 门开

门 开

1V Y 2T K

7 1 1

AS

时 延 门 开 时 延 合 混

1T K

6 1 1

4A K

2A K

2L H 5B S

3 1 1

4 B S

2T K

4 1 1

1L H

2 0 1

P O T S E

1 1 1

1Q S

3 0 1

1M K

2 1 1

3B S

关 开 门 全 安 ＋ 停 急

5 0 1

KM1

QF1

N PE

N

L11

A 1

L1 L2 L3

AC 3P / N / PE 380V & 50Hz

1 U F

1F Q

停 启 机 电 合 混

W V U

M1

5 0 1

0 1 1

2A K

5 1 1

1M K 2 B S

停 启 合 混

Schematic diagram IV of the electric control of twin-shaft paddle mixer (pneumatic gate)

急停+安全门开关 emergency stop + safety gate switch 混合电机启停 start and stop of the motor for mixing 混合启停 start and stop of mixing 混合延时 mixing time delay 关门 gate closing 开门延时 gate opening time delay

开门 gate opening 开门到位 gate opened to the designated position 关门到位

gate closed to the designated posit 开门指示 gate opening indicator 关门指示 gate closing indicator Note: This diagram is applicable for SLHSJ0.5A and SLHSJ1A.

36

Transportation and installation Schematic diagram V of the electric control of twin-shaft paddle mixer (pneumatic gate)

AC 3P / N / PE 380V & 50Hz L1 L2 L3 N PE

QF1

KM1M

FR1 KM1Y M1 KM1

Note: This diagram is applicable for SLHSJ2A, SLHSJ3A, SLHSJ4W, SLHSJ7A, SLHSJ8A and SLHSJ10A.

37

Transportation and installation Schematic diagram VI for the electric control of twin-shaft paddle mixer (pneumatic gate)

8 1 1

4T K

9 1 1

△ 1 M K

动启 Y

Y 1 M K 1 L H

△ 1M K 6 1 1

4T K

7 1 1

Y 1 M K

行运 △

△ 1 M K

M1 MK 5 1 1

Y1 MK 4 1 1

△ 1 M K

3 1 1

M 1 M K

时延 换切 角三 。 星 量

4 T K

1A K 1 A K 0 1 1

2B S

1 1 1

1F Q

停启

1 A K

2 1 1

3 B S

5 0 1

A1

PO TS -E

1 Q S

3 0 1

5 0 1

N

L11

UF

2 0 1

护保 门和 停急

数 的 关 开 护 保 门 加 增 应 相 并 ， 加 增 以 可 求 要 户 客 据 根 量 数 的 门 理 清 ： 明 说

急停和门保护emergency stop and gate protection 启停Start and stop 星三角切换延时Time delay of star and triangle switchover ∆运行∆ running Y启动 Y starting 说明：清理门的数量根据客户要求可以增加，并相应增加门保护开关的数量。 Note: The quantity of cleaning gates can be increased according to customer’s requirement and the quantity of gate protection switches will be increased accordingly. Note: This diagram is applicable for SLHSJ2A, SLHSJ3A, SLHSJ4W, SLHSJ7A, SLHSJ8A and SLHSJ10A. 38

Transportation and installation Schematic diagram VII for the electric control of twin-shaft paddle mixer (pneumatic gate)

25 1

4A K

4 L H 93 1

4Q S

04 1

3A K

位 到 门 关

4 A K

3 L H

3Q S

位 到 门 开

3 A K

83 1

3 V Y 3T K

2 V Y

间时 理清

4 T K

63 1

T3

2A S

2T K

1 V Y 1 A S

53 1

间时 料卸

3 T K 4 A K

2A K

43 1

间时 合混

2 T K 2 L H

13 1

5 B S

3 T K

23 1

33 1

停启 合混

2 A K

N

113

4B S

。 2或 1为 定 设 可

s

73 1

s

4T K

， 减 增 情 酌 性 特 的 料 物 合 混 据 根 户 用 ， 件 组 配 选 为 阀 磁 电 吹 喷 ： 明 说

混合启停 start and stop of mixing 混合延时 time delay of mixing 卸料延时 time delay of discharging 清 理时间 cleaning time 清理电磁阀 cleaning solenoid valve 开门到位 gate opened to designated position 关门到位 gate closed to designated position 说明：喷吹电磁阀为选配组件，用户可根据混合物料的特性酌情增减，T3 可设定为1s或2s。 Note: Spraying solenoid valve is an optional component, users can increase or reduce its quantity based on the characteristics of mixing material; T3 can be set as 1s or 2s. Note: This diagram is applicable for SLHSJ2A, SLHSJ3A, SLHSJ4W, SLHSJ7A, SLHSJ8A and SLHSJ10A.

39

Transportation and installation Note: 1. An over-voltage protection device should be provided for the user’s power supply; 2. In order to ensure safety, it is necessary to install a safety switch nearby the mixer (an emergency stop switch or a lock-up maintenance switch); 3. The above schematic diagrams are only for the independent operation of the mixer, the interlocking of the mixer with its upstream and downstream processing equipment should be taken into account in process design; 4. KT1 indicates mixing time, KT2 indicates time for gate opening of the mixer, the specific time can be determined as per the actual production situation; 5. Timekeeping can only be started for mixing operation until the gate has been closed to the designated position.

40

Operation I. Functional inspection prior to the first test-run Before leaving the manufacturer plant, the machine has been tested by a thorough trial-run. The first trial run cannot be done until following checks have been conducted. There must not be any abnormal contacts inside the trough of the mixer or between all other accessories. Carefully check each connecting points to ensure they are not loose. Check the rotors for flexible rotation, and there should be no abnormal sounds resulted from blockage, collision or abrasion etc. Check the rotors for their rotating directions matching with that indicated, for this it may need to start the motor for a short time; meanwhile, check the motor for any change in its rotating direction. Emergency stop switch Check the emergency stop switch for normal operation. Safety switch of the operation gate The limit switch at the operation gate is a part of the safety control, and its normal operation is directly related to the safety of the mixer, therefore checks must be made for its normal operation. Discharge gate mechanism Check the discharge gate mechanism for flexible rotation. When opening or closing the gate, there should be no abnormal sounds resulted from blockage, collision or abrasion etc.

II. Commissioning 1. Before each commissioning or after each unexpected interruption, any residual materials in the mixer trough must be emptied. 2. Only when the operation gate is closed and other auxiliary equipment is running, it is allowed to start the principal machine of the mixer, and materials can only be fed until the rotor is running normally.

III. Usage and operation 1. The operator should well know the structure, performance and operating methods of the machine, and have received the training organized by Jiangsu Muyang Group. 2. Each batch of material should be fed evenly in production, and may not be sometimes more and sometimes less, so as to ensure the motor running under a rated load. 3. After working, the machine must make an idle run for 1-2 min. prior to shutting down, so as to discharge all materials out of the machine. 4. If violent vibration occurs when the mixer is running, the machine should be stopped immediately to find out the cause and may only be restarted for work until the fault is eliminated. 5. The temperature raise (refers to the risen temperature above ambient temperature) of the bearings for main shaft should not be higher than 35 41

℃, and the maximum temperature should not be

higher than 70

℃ (ambient temperature should not be higher than 40℃).

7. Materials can only be fed until the rotor is running normally; Additives should be added in when a half batch of main materials has entered the machine, and oil should not be sprayed until all materials have entered the machine; Materials should be discharged only after a period of mixing. 8. When the machine is stopped and not to be used, there should be not any oil remained in the oil adding pipe to avoid pipe blockage due to oil solidification; 9. Metal or other large impurities should not be mixed into the material to avoid damages to rotors and paddles; 10. The aped reducer, cylinder and auxiliary elements should be used in accordance with the relevant stipulations in their operating instruction manuals; 11. After several hours’ operation the chain should be tensioned as properly as the tensioning degree shown in Fig. 8 (reference size: f=

1 L), and check other fasteners. 50

12. The machine should not run with an overload to avoid breakage of the main shaft. 13. When electric discharging is selected to be adopted, check for normal operation of the limit switches for opening or closing the gate before use.

42

Repair and maintenance

It is required to operate the machine strictly according relevant stipulations. Each shift should make necessary checks and cleaning. The inside of the machine can be cleaned by bin-cleaning materials (such as corn), as well as air spraying (when the machine is equipped with an air pocket spraying unit).

I. Machine stop Before making any repair and maintenance for the mixer, all its relevant machines must be stopped. Therefore, attention must also be paid to preventing the mixer from starting by other possible ways.

II. Maintenance for mechanical part 1. The discharge mechanism should run flexibly, and the joint parts should be brushed over with proper amount of machine oil; 2. Lubricating grease should be replaced regularly for each bearing; the lubricating grease should be sodium base grease (GB492-65) Zn-3; 3. The driving chain should be brushed over with proper amount of 30# machine oil and cleaned regularly; 4. Lubrication of the speed reducer. Trademark of the lubricating grease to be used: molybdenum sulphide -2 or ZL-2 lithium base grease, for details on specific amount to be used as well as repair and maintenance, see Operating Instruction for Cycloid Pin Geared Motor. Before the machine leaves the plant, ZL-2 lithium base grease has been added into the geared motor, so it is not necessary to add lubricating oil any longer, otherwise, there may be oil leakage at the end cover. 5. If the equipment is not to be used for a long period, it is required to make a complete cleaning for the equipment, and take measures for corrosion prevention and rust removal. 6. When it is used for processing premix or concentrate feeds, it is required to remove residual materials from the trough, so as to avoid corrosion.

III. Maintenance for pneumatic part 1. It is required to regularly clean the dust accumulated in the discharge control mechanism; 2. It is required to regularly clean the filter core, water and oil cups. 3. The metal parts should be cleaned with mineral oil, and the rubber parts with soap liquid. Both the oil and water cups should be rinsed in petroleum solution, but never in acetone, ethyl acetic ester or toluene solution etc.

IV. Bearing cleaning and changing Being important components of the mixer, bearings should be checked frequently for any abnormal sound or whether the temperature exceeds the range for usage, and if any, immediately stop the 43

machine for inspection. 1. Bearing cleaning When the machine has worked for 1000 hours, the bearings should be thoroughly cleaned with clean kerosene. If gasoline is used, attention should be paid to avoiding explosion hazard because of oil atomization. Cleaning method: 1.1 Preparation should be made beforehand for supporting or hanging the rotors; 1.2 Loosen the bolts on bearing covers, remove the gasket, dismount the upper and lower bearing covers; 1.3 Clean the bearing with clean kerosene. Be careful, don’t splash the kerosene during cleaning; 1.4 Re-fit the upper and lower covers and gaskets, remove the support, and tighten the bolts; 1.5 Put the machine into test-run to check for any abnormality, if there is any abnormal sound and heating, have them corrected. 2. Bearing lubrication After each cleaning, fill grease as required. It is recommended to select grease LITEAEP6-077 (ASEOL),

BEACOMEP2

(ESSO)

and

ARALUBHLP2

(ARAL),

please

access

http://www.msdsonline.com for review.

In grease filling, only

1 3 ～ of the space inside the bearing casing can be filled. If too much 2 4

grease is filled, it will make the bearing overheated. In case the bearing is severely heated or the grease overflows out of the bearing, stop the machine for further settlement at once. 3. Bearing changing When a bearing cannot work properly due to wearing or other reasons, it should be changed. 3.1 Bearing disassembly 1) Disassembly of the bearing at the driving end ——Support or hang the rotor as bearing cleaning method mentioned in the above section, remove the gasket as well as the upper and lower covers. ——Remove the guard, the chain and taper sleeve sprocket. ——Loosen the lock washer, unscrew the round nut, and then remove the lock washer, the retainer ring and the bearing. 2) Disassembly of the bearing at the non-driving end ——Support or hang the rotor as bearing cleaning method mentioned in the above section, remove the gasket. ——Loosen the lock washer and remove the bearing. 3.2 Bearing assembly Bearings should be assembled in the procedures contrary to that for bearing disassembly. ——Before assembling, clean all parts with detergent free of oil. Especially bearing surfaces, rotor shaft, closing sleeve and inner race must be absolutely free of oil. ——When assembling, attention should be paid to that the fixed end should be at the driving side. Fit 44

the retainer ring into the bearing cover. For fitting a non-locating bearing, be careful of that the clearances at both sides of the bearing must be kept similar to each other.

VI. Malfunction and troubleshooting 1. Mechanical malfunction and troubleshooting 1.1 In case the machine stops while it is working, the discharge gate should be opened to clear off all materials prior to restarting the motor; 1.2 If material leakage occurs at the discharge gate, it is necessary to check the contacting condition of the discharge gate with the housing. If the discharge gate can not be closed tightly, loosen the nuts on both ends of the connecting lever firstly, and then adjust the length of the connecting lever to a proper position (see Fig. 3); if it is caused by an aged seal strip (see Fig. 14), the seal strip should be replaced (see Fig. 15); the replacing period of the seal strip shall be every two months to two years according to different materials; 1.3 When the discharge gate is closed with no signal given out, that means the limit switch is at incorrect position or the circuit is broken, so the position of the limit switch should be adjusted (see Fig. 3) and checks should be made on the circuit; 1.4 If the discharge mechanism can not work normally, it is necessary to check the cylinder and air supply system for any failure, and check the pipe connection for its conformity to the requirements shown in Fig. 10;

45

Repair and maintenance Discharge gate plate

Sealing member of discharge gate

Gate shaft

Bracket arm Fig.14 Discharge gate

Holding plate Base plate Sealing strip

Bolt

Fig. 15 Assembling and disassembling of sealing members for discharge gate

46

Repair and maintenance 1.5 If material leakage at shaft ends during use is caused by the loose bolts on the sealing cover, it is necessary to screw them up tightly; if it is caused by aged sealing members, it is necessary to replace them timely. If there is not enough space for replacing the sealing members, the sprocket and bearing pedestal should be disassembled firstly, then the sealing gland, finally the sealing members should be replaced (see Fig. 16). For types of sealing members, see Table 8.

1.Chain 2. Bearing pedestal 3. Bolt 4. Sealing cover 5. Sealing member 6. Transparent sealing cover Fig. 16 Sealing of main shaft 1.5.1 Replacement of sealing members □10/YS250 at shaft end. For replacement of sealing members, usually screw off four groups of bolts on the sealing cover at first, see Fig.16, pull out the bottom caver along the main shaft and then take out the sealing members, evenly mount new sealing members as shown in Fig.16 and then press the sealing cover, lastly screw down the four groups of bolts. If the space for replacing the sealing members is not enough, firstly disassemble the chain pulley and bearing pedestal and then the sealing cover, and replace the sealing members at last. 1.5.2 Disassembling and assembling of taper sleeve sprocket. The chain pulley of main shaft for SLHSJ1A and above adopts taper sleeve. When disassembling the taper sleeve sprocket, firstly disassemble the guard shield if any, and then loosen the fastening bolts on the taper sleeve and screw down the disassembly bolts on the taper sleeve, to make the taper sleeve and the chain pulley separated, and then it is possible to push the taper sleeve and the chain pulley out of the main shaft. For assembling of the taper sleeve sprocket, directly adjust the position of the taper sleeve and the chain pulley well, screw down the fastening bolts on the taper sleeve and finally mount the bolts with a torque spanner, be sure to screw down the bolts tightly (see Table 6 for the parameters of the taper sleeve sprocket).

47

Table 6 Parameters of the taper sleeve sprocket Parameters Types of taper sleeve

Quantity of fastening bolts

Fastening torque （Nm）

SLHSJ1A

4040-Φ85

3

192.10

SLHSJ2A SLHSJ3A

7060-Φ105

4

883.66

SLHSJ4W

7060-Φ125

4

883.66

SLHSJ7A SLHSJ8A

8065-Φ125

4

883.66

SLHSJ10A

8065-Φ145

4

883.66

Types

48

Repair and maintenance 1.6 If light friction noise occurs during the operation of the machine, the position of rotors can be properly readjusted (see Fig.2), and the paddles can be ground if necessary. 1.7 If the fan of the motor gives out noise when the motor of the mixer is running, there may be four causes as follows: 1.7.1 Screws for the fan cover are loose, and collision occurs between the fan cover and the fan, or dirt exists inside the cover. Solution: Adjust the fan cover, remove the dirt and screw up the screws. 1.7.2 The fan blades are damaged. Solution: Replace damaged blades. 1.7.3 The bearings of the motor lack of oil. Solution: Add proper amount of machine oil or grease. 1.7.4 The bearings of the fan is damaged. Solution: Replace it or replace the motor bearing or the motor (generally, this is impossible). 1.8 If vibration occurs when the mixer is running due to unsmooth or insufficiently rigid foundation, it is necessary to adjust the foundation to keep it smooth and sufficiently rigid. The cause may also be the main shaft bearings are insufficiently lubricated or damaged, it is necessary to replace the lubricating grease for bearings or replace the bearings. 1.9 If abnormal noise comes from the geared motor instead of from the fan, or if the motor bearings are not sufficiently lubricated or are damaged, it is necessary to replace the bearing lubricating grease or the geared motor. 1.10 If there is material leakage from the top cover of the mixer due to loose bolts or aged sealing members or both, it is necessary to timely screw down the bolts or to replace the sealing members correspondingly. 1.11 Disassembling and assembling of sealing members for discharge gate. The sealing strips for discharge gate are divided into two types, the firs type is the size 26×20 (present SLHSJ A series), the second type is the size 20×20 (former SLHSJ0.06~10 type). The firs type 26×20 sealing strip, its cross section is shown in Fig.17 A (cross section of sealing strips). Disassemble all the fastening parts for sealing according to the sequence in explosion diagram for wearing parts in the list of spare parts, and then take out the fastening parts for sealing from the mixer and draw out the sealing strips for the discharge gate from aluminum alloy. For assembling, insert the sealing strips into aluminum alloy with uniform force, enabling the sealing strips to be gradually stretched partially early and late, do not tear the sealing strips. Assemble the fastening parts for sealing into the mixer after the sealing strips have been assembled. The firs type 20×20 sealing strip, its cross section is shown in Fig.17 B (cross section of sealing strips). The parts shall be disassembled according to the sequence in explosion diagram shown in Fig. 15, firstly disassemble the bolts and then take out the holding plate and sealing strip orderly; for assembling, firstly place the sealing strips and holding plate, and then screw down the fastening bolts.

49

26

20

20

20

Cross section A

Cross section B

Fig. 17 Cross section of sealing strips

50

Repair and maintenance 2. Malfunction of and troubleshooting for the pneumatic control system (see Table 7) Table 7 Malfunction and troubleshooting

Trouble

Cause

Air leakage between the cylinder body and the end cover Air leakage at the regulating

Solution

Damaged sealing ring

Replace the sealing ring

Damaged sealing ring

Replace the sealing ring.

Insufficient output force of

Poor lubrication

the cylinder

Insufficient air supply

Check the function of the oil mist lubricator Increase the internal diameter of the connecting pipe or pipe adaptor

rod of the buffer throttle of the cylinder

The

pressure

does

not

increase when adjusting the

Broken spring

Replace the spring.

No oil drops from the oil mist lubricator when it is working.

Decreased inlet flow rate locked oil needle

Supplement the oil Clean or replace the oil needle

The electromagnet gives out noise.

There is dirt between the attracting surfaces of the iron core. The voltage is lower than

pressure reducing valve.

the rated value. Bad wiring of the solenoid valve The solenoid valve does not The main valve doesn’t reverse or reverses inflexibly.

or slowly releases air. Poor

lubrication

or

the

working pressure is too low.

Clean the dirt Adjust the voltage Check the circuit Clean the electromagnet Clean, check the oil mist lubricator and increase air source pressure; check the air passage for air leakage Adjust the air pressure to 0.6MPa, and

The pneumatic gate cannot be opened.

Insufficient air pressure Too tightly closed throttle

increase the air release speed of the throttle 3 (Fig.10)

VI. Long-term halt If the machine is to be halted for a long time, it must be thoroughly cleaned both inside and outside to remove dustiness so as to avoid rusting of the machine and aging of rubber parts.

51

Spare parts I. Important notes Within a year after the ex works date (according to the invoice date), our company is responsible for repair or replacement of parts free of charge (excluding wearing parts), when the faults are resulted from quality problems under normal operation and maintenance, but not from operations not according to the instruction or human factors. Our Company continues to provide maintenance service after a year from beginning of the ex works date, in order to ensure normal usage of the equipment. The cost shall be born by the customer.

II. Spare parts Whether the spare parts can be ordered timely and accurately will influence your production. So in order to purchase right spare parts, when place an order, please mention the corresponding serial number, code and description of the spare part shown in this chapter, and the quantity needed. And provide us the order list via mailing or e-mail if possible, please attach a sketch of the spare part you require. There are some parts are wearing parts also belonging to spare parts, which are listed as shown below (see Table 8): Table 8 List of wearing parts Designation

Types and specifications

SLHSJ10A Bearing

SLHSJ8A SLHSJ7A

SLHSJ 4W

Qty.

SLHSJ2A SLHSJ SLHSJ0.5A SLHSJ0. SLHSJ0. SLHSJ0.06A SLHSJ3A 1A SLHSJ0.35A 2A 1A

22234K

22226CA 22226CA

22224K

2220K

2216K

2213K

2211K

2209K

22232K

UCP322 UCP322

UCP218 UCP215 UCP212 UCP210 UCP209 UCP206 63056311-RS 6308-2RS 6206-RS 6206-RS 2RS

2 2

NJ316E

6316-Z

6314-Z

6314-Z

2

Chain

40A-3

32A-3

28A-3

28A-3

20A-3

20A-3

16A-2

16A-2

10A-2

Seal ring

□10/YS 250

□10/YS 250

□10/YS 250

□10/YS 250

□10/YS 250

□10/YS 250

□10/YS 250

□10/YS 250

□10/YS According to 250 demands

According to demands

It can be substituted by asbestos if it cannot be bought in local area.

Pin

The specification shall be determined according to model of mixer (installation position refers to drawing of spare parts, No. 0102)

5/10

Seal strip

Rubber seal strip

According to demands

Solenoid valve

Triple members of pneumatic system

（

VF5120-4D-03 / VF3130-4D-02 Wuxi Hengli

AC4010-03D / AC3010-03D (Wuxi Hengli)

52

）

1

1

Spare parts 0004

0003

0002

0001

List of spare parts No.

Designation

Qty (piece/set)

0001

Small chain pulley

1

0002

Geared motor

1

0003

Bearing pedestal

2

0004

Taper sleeve sprocket

2

53

Remarks

Spare parts 0006

0005

No. 0005 0006 0007

Designation

Qty (piece/set)

Bearings with pedestal Sealing cover Transparent sealing cover

2 2 4

54

0007

Remarks

Spare parts 0008

No.

0009

0010

0011

Designation

0009

Asbestos-fluoro-ethylene packing set Partial seal cover

0010

Felt collar

0011

Thrust ring

0012

Bearings for main shaft

0013

Bush

0014

Nut

0008

0012

0013

Qty (piece/set) 4

4 2

55

0014

Remarks

Spare parts 0101

0116

0102 0103 0104 0105 0106

0115

No.

0107

0114

0102 0103

Nut

0104

Connecting lever

0105

0111

Nut Adapter of connecting lever (2) Twin-rocking lever Middle bearings with pedestal Coupling Two-way valve for cylinder Cylinder

0112

Limit switch

0113

Pin of cylinder tail

0114

Rocking arm

0115

Bearings with pedestal

0116

Cover of observation door

No.

Designation

0106 0107 0108 0109 0110

0112

Qty (piece/set)

Designation Adapter of connecting lever (1) Pin

0101

0108

0110

0109

0113

Remarks

Wuxi Hengli Wuxi Hengli

Remarks

56

0111

0112

Spare parts 0200 0201 0202 0203 0204

0205 0206 0207 0208

0209 No.

Designation

0200 0201 0202 0203 0204 0205 0206 0207 0208 0209

Take-up mechanism Nut Round head washer Round head seat Bolt Arc frame Take-up sprocket Distance sleeve Shaft Bearing

Qty (piece/set) 1 2 1 1 1 1 1 2 1 2

57

Remarks

Spare parts

0302 No.

Designation

0301 0302

Rotor (1) Rotor (2)

0301 Qty (piece/set)

Remarks

1 1

View from end of chain pulley View from end of chain pulley

58

Spare parts

0401 0402

0403 0404 / 0405

No.

Designation

0401 0402 0403 0404

Flange Rubber blanket Connecting pipe Nozzle

0501

Qty (piece/set) 2 1

Designation

0501

Two-way valve for Triple

0505 0506

0505 0506

05020503 0504

No.

0502 0503 0504

Remarks

members of Triple members of

Silencing throttle Solenoid valve Two-way valve for solenoid valve Air pipe

Qty (piece/set)

Remarks

2

Wuxi Hengli

1 2 1

Wuxi Hengli Wuxi Hengli Wuxi Hengli Wuxi Hengli

3

Wuxi Hengli

59

Spare parts

No.

Designation

0601 0602 0603 0604

Seal strip Short seal caulking strip Short seal backing plate Short seal fixed plate

Quantity (piece/set) 4 4 12 4

60

Remarks

Spare parts

No.

Designation

0701 0702 0703 0704

Seal strip Long seal caulking strip Long seal fixed plate Long seal backing plate

Qty (piece/set) 4 4 4 8

61

Remarks

Spare parts III. Ordering form of spare parts

Mixer type No.

Order No.

Power Muyang Code

Designation

Ex-works No. Quantity

Note: This form can be replicated or turned to an electronic form.

62

Remarks

Appendix

Appended documents

No.

Designation

Unit

Qty

1

Operating Instruction for Geared Motor

Copy

1

2

Operation manual of the machine

Copy

1

Operating instruction for cylinder (or

Copy

1

Quality certificate

Copy

1

Ordering form for spare parts

Copy

3

4

electric push rod)

Remarks

Covered in the 5

1

Operating Instruction of the Product Covered in the

6

Copy

Appended documents

1

Operating Instruction of the Product

63