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• Ceferino Avalos Esquivel

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Bruno v2.12 Introducción al Programa de Cálculo de Procesos

Interface de usuario Bruno 1

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After successfully entered license an empty Bruno document opens

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Bruno user interface consists of four windows

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Flowsheet (documents open on the flowsheet) Fraction curve Result list Warnings

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Bruno user interface 2

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toolbar

window is selected with corresponding button in the

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Active

Flowsheet Fraction curve Result list

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Warning window opens only after calculation

Bruno user interface 3 - toolbars

Document tools (from the left)

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new document open existing document save document

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copy print active window print preview

Bruno tools (from the left)

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selection make connection zoom in/out active window flowsheet

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active window fraction curve active window result list calculate help

Bruno user interface 4 - palette

Bruno devices (from the left)

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feed

- my crusher

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feeder

- screen

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primary and secondary gyratories product pile

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jaw crusher

fine gyratories and cones

- stock feed

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horizontal shaft impactor

- add text

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vertical shaft impactor

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- silo and node and cone crushers

- stock pile

- add picture

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- Feed Bruno devices •

Define:

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feed rate feed material feed gradation

Double click on the symbol to open Feed dialog

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Bruno devises - Feed

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Feed Rate will be given as t/h (or st/h if imperial units are selected)

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If Feed Rate has been set 0, Bruno calculates the top capacity of the process

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Select material from the list

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The default material is granite

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Bruno devises - Feed

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Select My material if you want to define your own material

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Material data button opens Material data window, where you set material properties

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Click help if you want to know description of the properties

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Select feed gradation from the list

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Feed gradations are defined by top particle size 200mm 2000mm

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Bruno devises - Feed •

There are three basic gradations for every size

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fine medium coarse

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To define own feed gradation select MyFraction and click Insert MyFraction button

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General interleaf is for entering Plants name and other info about the process

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Bruno devises - Feed •

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The information appears on the flowsheet below Metso’s logo in the Plant and Info fields

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Bruno devises Machines

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A crushing plant includes typically feeders, crushers and screens for material processing

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Like in real life the machines’ operating parameters have to be set also in Bruno

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Bruno devises • In Bruno the basic structure of the machine dialogs is the same regardless of the machine

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The settings vary from machine to machine, but the important settings are gathered to the first interleaf

machine dialog •

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Machine selection and settings

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Bruno devises -

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type model machine settings

specific

Nominal operating parameter limits are shown in the data field on the right

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Bruno devises machine dialog

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Calculation can be fine tuned with user definable factors on interleaves

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Help on each interleaf provides detailed information about the effect of the factors

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Bruno devises feeder and screen

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Feeders and screens typically divide material flow into 2 - 5 fractions

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Pan feeders just transfer material without changing gradation

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Double click the symbol to open machine dialog

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Bruno devises crushers

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Crushers main function is to reduce feed material particle size

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Crushers’ performance depend on the type and size

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Double click the symbol to open machine dialog

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Bruno devises others • There are some other process devises available in Bruno

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product pile stock pile stock feed node/silo My Crusher

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Bruno devises others

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Product

- the last part of every process

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Stock pile

- intermediate storage pile, which can feed an other process • Stock feed

- needed after stock pile to define feed properties

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Node/silo

- node/silo divide material flow into 2 - 4 sections by mass flow

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Bruno devises - node with volume is called silo

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My Crusher

- generic crusher defined by the user

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Opening document • •

Every time you start Bruno an empty document opens first You can open existing document instead

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Click Open in the toolbar

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Select the document (.brn) in normal file explorer window

Configuring a process

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add all the machines of the process on the flowsheet

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define process flow

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there must be at least one feed and one product in every process

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all the machine inputs and outputs must be connected

set the machine settings Rules:

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Adding machines 1

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Select a machine from the toolbar by clicking a button

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move cursor to the drawing area and it changes into a wire frame picture of the selected machine

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click right mouse button to drop the machine

Adding machines 2

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Machine symbols can be moved on the flowsheet

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when cursor is on the black rectangle and right mouse button is pressed, the symbol can be moved.

click right mouse button on a machine or near a machine and the symbol colors become negative

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Process flow

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After adding all the needed machines the process flow has to be defined

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First select connection tool

Process flow 2 • 25

Connect machines from machine output to machine input.

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Output is marked with a square and input with a circle

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click on a square and move the cursor onto circle and click

Device settings • Double click each devise to open the dialog and make settings

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Calculate a process

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Click calculate in the toolbar

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Bruno gives a warning if:

The calculation progress is shown in the bottom left corner

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all the flows are not connected

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there is no feed and/or product in the process

flows are connected wrong device settings are not set

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some

Calculate a process

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Bruno gives warning also if the algorithm can not calculate a result

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Typical warnings are - Closed circuit does not converge = some material fraction can not be removed from the loop causing continuously increasing flow rate.

- Too many loops finding top capacity = the maximum number of iterations has been reached.

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Solution: some machine parameters have to be changed.

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Results

• The calculation results are divided in three sections -

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warnings results on the flowsheet fraction curves result list

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Warnings

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If needed warning window opens after calculation Warnings give indication of exceeding nominal operating parameters of the machines

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Results on the flowsheet -

Material flows screen efficiency

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F80/P80 crushing ratio crusher load

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product percentages of the feed

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Practice 1, Draw Bruno Flowsheet

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Modifying flowsheet • Select Options menu and display options to modify flowsheet

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Select equipment Connect equipment

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Layout Right-angles in connections

Fraction curve

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Select process flow and open fraction curve window to see the particle size distribution of the flow.

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To select more than one flow keep shift button pressed and select as many flows as you need.

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Note! More than two curves in the same window makes the diagram difficult to read. See for your self.

Click here to see the solution

Result list • 35

Click result list in the toolbar to open the results

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Results list contains the same information which is displayed on the flowsheet and other calcutation results depending the selected mode.

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The results follow device numbering

Result list mode •

When result list is open, user can choose from two display modes

- normal report - extended report

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Extended report is more detailed than normal report

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The report mode is shown beside the window name

Save the document

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To save the document click save button in the toolbar

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the procedure is the same as in any Windows program

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If the document is saved for the first time, the document name and directory location have to be defined.

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Help

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Bruno’s help is divided into general section and machine section

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To open the general section click help button in the toolbar

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Machine helps are opened by clicking help button in a machine dialog

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General help

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The general help is designed to give information about the whole program and the features common for all the devises

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Machine help

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The machine help contains instructions on problems with using Bruno; for example entering parameters.

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Example: How does My factor for capacity effect?

Click help

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Machine help

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Machine help

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Help sections are linked together More detailed information about calculation and other model characteristics are described in general help

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Getting help

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If problems occur that can not be solved with the instructions in Bruno’s help, contact Bruno administrators. [email protected]

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Describe:

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What did you want to do? How did you try to do it?

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What happened?

Exercise 2, Two stage crushing plant

• Please make Bruno simulation for the following crushing plant need:

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Feed material:

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Feed size: Capacity:

© Metso Minerals, Inc. 47

hard gneiss, Crushability 28 % abrasion index 0.7 (1400 g/ton) 0-600 mm medium 200 tph

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Products sizes:

Click here to see the solution

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0-5, 5-20 and 20-40 mm

Ejercicio 1 -

Material de Alimentación: Minerio polimetálico Densidad aparente: 1.9t/m3 Wi: 15kWh/st Tamanho de alimentación: 800mm promedio Producción: 20.000t/día Regímen de operación: 24h/dia Producto: 10mm (P80) Alimentación a molienda

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Ejercicio 2 -

Material de Alimentación: Minerio de cobre Densidad aparente: 1.6t/m3 Wi: 17kWh/t Tamanho de alimentación: 1000mm fino Producción: 30Mt/a Regímen de operación: 24h/d, 365d/a Producto: -13mm Lixiviación

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