simuladorjksimmet rev1.2

7/30/2019 simuladorJKSimMet rev1.2

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JKSimMetSteady State Processing Plant

Simulator

Split Engineering Chile Ltda.Eduardo Marquina #3937 oficina 1201

Casilla 19158 - Correo 19 Vitacura - Santiago, CHILE

Fono: (56)-(2)-2064674

Fax : (56)-(2)-2064668

http://www.spliteng.cl

Split Engineering LLC.110 S. Church Avenue, Suite 8312 CP 85701

Tucson Arizona, USA

Fono: (1)-(520)-3273773

Fax : (1)-(520)-3267532

http://www.spliteng.com

Review 1.2 of the 01-04-06
http://www.spliteng.cl/http://www.spliteng.cl/http://www.spliteng.com/http://www.spliteng.com/http://www.spliteng.cl/http://www.spliteng.cl/


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Overview

History

Developed after 3 decades of experience in modelling for theAustralian Julius Kruttschnitt Mineral Research Centre, JKMRC.

The JKMRC is the scientific and technologic development center ofthe Queenslands University - Australia.

In 1986 born the JKTech, the commercial division of JKMRC.

Split Engineering is the software official distributor for Latin

America.


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Overview

Objectives

Simulate grinding process.

Simulate clasification process.

Allow the characterization of a mineral processing plant.

Optimization of existings flowsheets.

Make conceptual desing studies.

Evaluate the suitability of different flowsheets to reach thewanted operation objectives.

Be a tool for Process Engineers in flowsheet analysis.


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Overview

System Description

JkSimMet is a software that facilitates the simulation of mineralprocessing plants operations.

JKSimMet Gives to the engineer the capability to design andimprove any grinding-clasification circuit.

JKSimMet makes steady state simulations of a serie of grinding-

clasification operations.


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Overview

System Description

JKSimMet includes processing models for equipments, such as:

Crushers (Jaw, Cone, Rolls, Gyratory)

Mills (Ball, rod, SAG, AG)

Hydrocyclone

Etc.

JKSimMet alows to make some adjust to models for characterize

your plant.

JKSimMet allows to make mass balancing


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Overview

Implementation

Software License.

A PC (Personal Computer) with next minimal requirement:

Operative System :Microsoft Windows 98/NT4/2000/XP.

Processor : 400 Hz.

RAM Memory :128MB (recommended 256MB).

Hard Disk :2 GB with 100 MB free space.

Monitor :Graphic SVGA (15).

CD Drive. Floppy disk drive (3.5 inch).

Mouse and keyboard

A person who has attended in a formal trainning.


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Overview

Security

JKSimMet has security keys(Dongle)

Parallel port

USB port PCMCIA (SIC) port


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Overview

Components

Simulation It is based on the capability to create a representative model

of the plant.

Model fitting This modality makes the model created get fit, as much as

posible, to every specific plant and operative condition.

Mass balancing It is use to make a balance of sizing data, chemical analysis

data and flow rate data, taken from a steady state conditionsurvey.


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Overview

Structure

The software structure consists in:

Proyect: Contains one or more flowsheets and data associated

for streams and units. Flowsheet: Graphical representation of a section or complete

mineral processing plant.

Equipment and Ports: the ports represents the connectionsbetween equipment.

Units: It is call unit to any equipment of processing like a ballmill or hydrocyclone.

Streams: Is a description of any flow of material in terms oftph or solids % or size distribution, etc.


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Process

Cycle

The mineral processing can be simplified

as a cycle that involves design,implementation, measurement of resultsand comparison stages, at the moment,because of JKSimMet this is a iterativeand interactive process.

JKSimMet allows analysis of every one of

this stages to measure their results as aset.

DESIGN

IMPLEMENTATION

MEASUREMENTCOMPARISON


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Process

Actions

Definition Objectives, operation conditions

Planning Flowsheet Design, data

Evaluation Performance analyze and

predicts

Measurement

Developt Control

Flowsheet optimization and dataanalysis


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Process

Definition

Design criteria

Available data

Performance objectives

Available

Equipment models

Default parameters model


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Process

Evaluation

Modelling and simulation

Performance characterization

Visualization

Available

Simulation

Model fitting

Mass balancing


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Process

Measurement

Results and observations

Available Data copy to clipboard

Statistical methods

Comparation between predicts and measurement data

Graphical representation of data


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Process

Control

Standardizes the flowsheet configuration

Flowsheet simulation

Results optimization

Available

Simulation

Model fitting

Mass balance

Size distribution graphs

Configurable Reports

Online help files


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Introduction

The simulation process involves arepresentative flowsheet definition,input of available data, followed byfitting parameters model and data for

simulation.

JKSimMet has a common structure forall the analysis tools, the users utilizethe same flowsheet and follow the

same procedures for all modes

Flowsheet Design

Data Input

Model Fitting

Simulation

Mass Balancing

JKSimMet Operation

Results Analysis


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JKSimMet Operation

Flowsheet Design

Add Equipment

In this stage the users select theflowsheet equipment for therepresentative processing plant


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JKSimMet Operation

Equipment

Model parameters:

Includes the mill scalling (diameter,fraccion de llenado, lenght, criticalspeed, work index, ball top size),Rate/Discharge function parameters,funcin de rompimiento.


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JKSimMet Operation

Ports

Data input (flow rates and size), it canbe done writing one on one every dataor by copy-paste functions.


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JKSimMet Operation

Model fitting

For a real mineral processing operation, the best fitted values aredifferent to the default values given by the system.

Every model has a list of adjustable parameters for fitt.

Parameters:

Equipment depending parameter.

Dimensions

Ore depending parameter Work Index

Specific gravity

Breakage function


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JKSimMet Operation

Model fitting

Parameters:

Measured or calculated operative parameters

Depend of a combination of equipment, ore and flow rateparameters. For example: feed preassure of a cyclon

The figure, shows some modelparameters that can be fitted for aball mill and Cyclon.


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JKSimMet Operation

Model fitting

How the model fittingprogram works

Works calculating thedifference betweenexperimental andpredicted data.

Derives a value thatrepresent theweigthed sum ofsquares (WSSQ).


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JKSimMet Operation

Simulation

JKSimMet simulationtechnique

The JKSimMet makes a steadystate simulation of a serie ofgrinding-clasificationoperations, by using modelprocess for all equipmentinvolved in such process.

This units can be combined in flowsheets and allows to the engineer tosimulate the operation of a plant or subsections of a plant. A simulationcan be controlled by specification of model parameters, the selection ofprocess model and the specification of operation data.


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JKSimMet Operation

Simulation

JKSimMet capabilities In adittion to the simulation capacities descrived before, theJKSimMet has a lot of functions for use and archive a set of data.

The JKSimMet is a powerfull tool for the process engineer andmetalurgist in terms of conceptual design, refining/alignment andmonitoring of processing plants.

It makes possible the simulation of a number and variety almostindefinite of circuit design.

The simulation capacities can be improved making a model fit forplant conditions.


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JKSimMet Operation

Mass Balancing

Concept

The mass balancing mode calculate the best adjusment of all selected

flows and calculates the more small adjusment to make datacongruents.

The sum squares difference between measured and adjusted data istaken as a goodness measure of the model fit.

The mass balancing program adjust the flow rates selected by user tofind the best set of flow rates to make that the balance result becomecloser to the lab measurement.


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JKSimMet Operation

Mass Balancing

How the mass balancingprogram works

It is a special case of theadjusting of the non-linearleast squares.

It is a easily calculation

solution. It doesnt require initial

calculations of flow rates,excepting a flow rate that isused like initial data.


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Split Engineering Chile Limitada

Telfono : (56) (2) 2064674.

Fax : (56) (2) 2064668.

E-mail : [email protected]

Web : www.spliteng.cl

Contacto

Para Mayor Informacin Comunicarse a:
http://www.spliteng.cl/http://www.spliteng.cl/


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Thanks for your attention!

simuladorjksimmet rev1.2

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