Pilot
Laboratory scale or batch test work have inherent shortcomings that can limit the usefulness of data for process plant design. These shortcomings arise from the inherent operating differences between batch-operated laboratory equipment and procedures, and those of a full-scale continuous process plant. Therefore using data obtained from mineral processing processes in the laboratory scale directly to the industrial scale (factory) is associated with errors and high risk from a technical and economic point of view, therefore, the existence of a pilot scale (semi-industrial) to reduce these errors in converting to scale The laboratory operation is very important to the actual factory. Among the benefits of pilot-scale flowsheet implementation, we can mention such things as raising the level of reliability and feasibility of the process, correcting circuit defects at a lower cost than actual conditions, and obtaining the necessary data for factory design. In this regard, the pilot unit of the mineral processing research center, having a wide range of mineral processing equipment on a semi-industrial scale, has the possibility to run various mineral processing circuits continuously and semi-continuously.
The pilot of the Mineral Processing Research Center is unique in the Middle East in aspect of quantity and quality of processing equipment and has the ability to continuously run all mineral processing flowsheets. These processes include from sample preparation and comminution to final concentrate production. During pilot experiments implementation, many of the key parameters usable in industrial scale design are determined. The tonnage rate of pilot tests varies from at least 100 kg to 2 tons per hour depending on the project conditions.
Pilot tests make it possible to run and simulate new equipment and technology on a semi-industrial scale if needed to ensure the investor that these equipment and technologies are operational. In addition, it is possible to optimize and troubleshoot the lines in the plant by simulating its circuit in the pilot, and therefore, it will be prevented from stopping the production line and causing economic losses.
Mineral processing pilot capabilities
Our specialists at the Mineral Processing Research Center have the ability to perform a wide range of processing activities on a pilot scale, including the following:
- Investigating the feasibility of laboratory flow sheet implementation on the semi-industrial scale; This feature is especially important for complex minerals ore and the ore which its processing requires the use of new and unconventional technologies. Pilot tests are also essential for the ore that its processing has high investment risk.
- Carrying out the production process in continuous and stable conditions
- Assessment of the water effects in the area on the production process and compare it with laboratory results
- Performing water balance in the processing circuit
- Investigating the effect of possible changes in the case of changing feed input characteristics
- Investigating the possibility of producing by-products
- Producing high-volume product samples to evaluate the product market
- Training technicians of the processing plant complex to set up and modify processing circuits
Pilot tests can have a significant impact on the success of any project, provided that the pilot tests are well planned and put into operation. Iran Mineral Processing Research Center has experienced specialists and a complete set of processing equipment belonging to reputable companies and has been constructed by the center's manufacturing workshop using the experiences gained in project implementation, which make it possible to perform effective and efficient tests.
Various sections of pilot plant
- Magnetic separation section
- Gravity separation section
- Thickener section
- Filter section
- Electrostatic separation section
- preparation and crushing section
- classifying and milling section
- hydrometallurgy section
- Flotation section
- High intensity wet magnetic separation
- Co-current low intensity wet drum magnetic separation
- Co-current medium intensity wet drum magnetic separation
- Counter-current medium intensity wet drum magnetic separation
- Counter-current low intensity wet drum magnetic separation
- Disc dry magnetic separation
- Rare earth dry magnetic separation
- Low intensity dry drum magnetic separation
- Medium intensity dry drum magnetic separation
- Knelson separation
- Half size wilfley shaking table
- Full size wilfley shaking table
- J 8 jig separation
- J 2/6 jig separation
- Cyclones heavy media separation
- Heavy media drums separation
- LD7 spiral separation
- MG4CF spiral separation
- WW6E spiral separation
- Test Tray Rig gravity separation
- 9 m thickener
- 3 m thickener
- 3 m thickener
- High-Rate thickener
- Ultrasep thickener
- Press filter
- Drum filter
- Belt filter
- Disc filter
- pan filter
- Plate Electrostatic separation
- roller Electrostatic separation
- jaw crushet
- impact crusher
- cone crusher
- 3 deck vibrating sieve
- tripper belt
- bunkers
- Nordberg rod mill
- Nordberg ball mill
- Faure ball mill (2 mill)
- Labtech-Essa 3 section ball/rod mill
- Labtech-Essa small rod mill
- Krebs hydrocyclons (10,25,75,150,250 mm diameter)
- Roche Mining spiral classifier (2 classifier)
- Sweco vibrating sieve
- Ludowici bend sieve
- Log washer classifier
- Atmospheric leaching
- Column leaching
- SX-Kinetics solvent extraction
- SX-Kinetics electrowinning
- Smart cell flotation
- Denver cell flotation
- Column cell (with diameter 10cm-plexiglass and 50cm-steel ,6m height)
Description of services that can be provided
- Crushing, classification, homogenization and accumulation of mineral materials and sampling
- milling and classification
- Carrying out gravity separations by different types of heavy media separators, jigs, shaking tables, spirals and knelson centrifuge separator
- Performing magnetic separations by wet and dry methods with low and variable intensity
- Conducting experiments related to the selection of autogenous mill (AG mill) and semi autogenous mill (SAG mill) mills
- Ability to perform flotation tests from 50 kg to 2000 kg per hour continuously and also perform column flotation tests.
- The ability to perform electrostatic separation tests in the form of plates and rollers
- Conducting sedimentation and dewatering tests with various thickeners and filters
- Conducting leaching tests, solvent extraction and electrowinning
- Pulp preparation with stirrer tanks made of Steel and polyethylene
Additional details
The pilot section of IMPRC is made up of different parts such as rock crushing, homogenization, milling and classification, gravity separations, magnetic, electrostatic, flotation, sedimentation, filtration, hydrometallurgy, which is briefly It is mentioned:
Rock crushing: including jaw crusher, cone crusher, impact crusher, two-deck vibrating sieve, conveyor belt, homogenization unit and storage bunkers for mineral materials with a capacity of 300-400 tons.
milling, preparation and classification: including ball mills, rod mills, mills with ceramic balls, re-crushing mills, spiral classifiers, types of hydrocyclone, bend and vibra energy sieve.
Gravity separation: including Bateman heavy medium separation cyclone, EIMCO drum heavy medium separator, shaking table in two models 7000 and 3000, Humphrey spiral in three models, jig in two models, washing vessel device (test rig) and Knelson centrifuge separator.
Magnetic separation: including wet separators with different field intensities co-current and counter-current, disc variable intensity separators and dry separators with high magnetic field intensity.
Plate and roller electrostatic separator with rotary dryer.
Hydrometallurgy: including continuous leaching tanks, column leaching, solvent extraction and electrowinning.
Sedimentation and filtration with 1-meter, 3-meter, 9-meter thickeners and drum, pressure, belt, disc and pan filters.