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JKSimMet Steady State Processing Plant Simulator

JKSimMet Steady State Processing Plant Simulator. Review 1.2 of the 01-04-06. 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.

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JKSimMet Steady State Processing Plant Simulator

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  1. JKSimMetSteady State Processing Plant Simulator Review 1.2 of the 01-04-06 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

  2. Overview History • Developed after 3 decades of experience in modelling for the Australian Julius Kruttschnitt Mineral Research Centre, JKMRC. • The JKMRC is the scientific and technologic development center of the Queensland´s University - Australia. • In 1986 born the JKTech, the commercial division of JKMRC. • Split Engineering is the software official distributor for Latin America.

  3. 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 the wanted operation objectives. • Be a tool for Process Engineers in flowsheet analysis.

  4. Overview System Description • JkSimMet is a software that facilitates the simulation of mineral processing plants operations. • JKSimMet Gives to the engineer the capability to design and improve any grinding-clasification circuit. • JKSimMet makes steady state simulations of a serie of grinding-clasification operations.

  5. 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

  6. 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.

  7. Overview Security • JKSimMet has security keys (Dongle) • Parallel port • USB port • PCMCIA (SIC) port

  8. 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 condition survey.

  9. 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 connections between equipment. • Units: It is call unit to any equipment of processing like a ball mill or hydrocyclone. • Streams: Is a description of any flow of material in terms of tph or solids % or size distribution, etc.

  10. DESIGN COMPARISON IMPLEMENTATION MEASUREMENT Process Cycle • The mineral processing can be simplified as a cycle that involves design, implementation, measurement of results and comparison stages, at the moment, because of JKSimMet this is a iterative and interactive process. • JKSimMet allows analysis of every one of this stages to measure their results as a set.

  11. Process Actions • Definition • Objectives, operation conditions • Planning • Flowsheet Design, data • Evaluation • Performance analyze and predicts • Measurement • Developt • Control • Flowsheet optimization and data analysis

  12. Process Definition • Design criteria • Available data • Performance objectives • Available • Equipment models • Default parameters model

  13. Process Evaluation • Modelling and simulation • Performance characterization • Visualization • Available • Simulation • Model fitting • Mass balancing

  14. Process Measurement • Results and observations • Available • Data copy to clipboard • Statistical methods • Comparation between predicts and measurement data • Graphical representation of data

  15. Process Control • Standardizes the flowsheet configuration • Flowsheet simulation • Results optimization • Available • Simulation • Model fitting • Mass balance • Size distribution graphs • Configurable Reports • Online help files

  16. JKSimMet Operation Flowsheet Design Introduction • The simulation process involves a representative flowsheet definition, input of available data, followed by fitting parameters model and data for simulation. • JKSimMet has a common structure for all the analysis tools, the users utilize the same flowsheet and follow the same procedures for all modes Mass Balancing Data Input Model Fitting Simulation Results Analysis

  17. JKSimMet Operation Flowsheet Design • Add Equipment In this stage the users select the flowsheet equipment for the representative processing plant

  18. JKSimMet Operation Equipment • Model parameters: Includes the mill scalling (diameter, fraccion de llenado, lenght, critical speed, work index, ball top size), Rate/Discharge function parameters, función de rompimiento.

  19. JKSimMet Operation Ports • Data input (flow rates and size), it can be done writing one on one every data or by copy-paste functions.

  20. JKSimMet Operation Model fitting • For a real mineral processing operation, the best fitted values are different 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

  21. JKSimMet Operation Model fitting • Parameters: • Measured or calculated operative parameters • Depend of a combination of equipment, ore and flow rate parameters. For example: feed preassure of a cyclon • The figure, shows some model parameters that can be fitted for a ball mill and Cyclon.

  22. JKSimMet Operation Model fitting • How the model fitting program works • Works calculating the difference between experimental and predicted data. • Derives a value that represent the weigthed sum of squares (WSSQ).

  23. JKSimMet Operation Simulation • JKSimMet simulation technique • The JKSimMet makes a steady state simulation of a serie of grinding-clasification operations, by using model process for all equipment involved in such process. • This units can be combined in flowsheets and allows to the engineer to simulate the operation of a plant or subsections of a plant. A simulation can be controlled by specification of model parameters, the selection of process model and the specification of operation data.

  24. JKSimMet Operation Simulation • JKSimMet capabilities • In adittion to the simulation capacities descrived before, the JKSimMet has a lot of functions for use and archive a set of data. • The JKSimMet is a powerfull tool for the process engineer and metalurgist in terms of conceptual design, refining/alignmentand monitoring of processing plants. • It makes possible the simulation of a number and variety almost indefinite of circuit design. • The simulation capacities can be improved making a model fit for plant conditions.

  25. 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 data congruents. The sum squares difference between measured and adjusted data is taken as a goodness measure of the model fit. The mass balancing program adjust the flow rates selected by user to find the best set of flow rates to make that the balance result become closer to the lab measurement.

  26. JKSimMet Operation Mass Balancing • How the mass balancing program works • It is a special case of the adjusting of the non-linear least squares. • It is a easily calculation solution. • It doesn´t require initial calculations of flow rates, excepting a flow rate that is used like initial data.

  27. Contacto Para Mayor Información Comunicarse a: Split Engineering Chile Limitada • Teléfono : (56) (2) 2064674. • Fax : (56) (2) 2064668. • E-mail : info@spliteng.cl • Web : www.spliteng.cl

  28. Thanks for your attention!

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