a) 10 tph Oil Agglomeration process
b) 10 tph Mini Flotation process
c) 20 tph Oleo Flotation process
|Sl. No.||A brief description of Facilities/ Equipment/Tools/software with photos|
Centrifuge: The basket centrifuge installed in fine coal washing pilot plant is used for dewatering washed coal product of pilot plant and also may be used with and without chemical additives.
Water Only Cyclone Test Rig: The test rig is used for beneficiation of coal fines and it also may be used for classification of coal fines.
Heavy Medium Cyclone Test Rig: The test rig is used for beneficiation of coal size -13+0.5mm and -6+0.5mm, using heavy media in bench scale. The experiments can be done with varying parameter like vortex finder diameter, spigot diameter intel feed pressure for each cyclone dia.
Three Product Baum Jig: The Jig washer was installed in the coal washing pilot plant for treating coal of size -75mm with an input capacity of 20tph. The jig produces three products viz., Cleans, Middling, and Reject.
Single, Double Roll and Impact Crusher: To study the liberation behaviour of mineral matter in coal washing, on crushing the ROM coal and three different types of crushers (Single, Double Roll and Impact Crusher) are installed in close circuit to ensure zero over size. The coal received at 5 numbers of underground coal bunkers can be operated from individual or in combination of bunkers in case of blending the coals.
Flotation Cells: A battery of 08 number of flotation cells is installed in fine coal treatments Pilot Plant where -0.5 mm coal can be tested with desired kinematics as per the standard laboratory results.
Heavy Medium Cyclone: the equipment is locally fabricated with 100 mm dia and is used for beneficiation of coal size 13-0.5 mm, using heavy media.
Coal Spirals Spiral separators, are devices to separate solid components in a slurry, based upon a combination of the solid particle density as well as the particle's hydrodynamic properties and is used for beneficiation of fine coal of size -1mm + 0.1mm
Column Flotation Test Rig: Column Flotation is used to perform mineral separations with the help of long column. The column flotation mixing is achieved by the turbulence provided by the rising bubbles/aeration, air introduce through a diffuser or sparger and do not use mechanical agitation. It is highly selective in nature and is used to produce final grade concentrates.
Heavy Medium Drum: The heavy media drum washer is installed in the coal washing pilot plant for washing coal of size -75 + 6mm, it uses magnetite as media and it is associated with magnetite treatment tank, magnetic separator etc.
Experimental Batch Rotary Breaker: The unit works as a crusher, screening and beneficiation. It is a stand alone breaker and may be used for deshaling of coal.
Oil Agglomeration Test Rig: The unit is used for beneficiation of coal fines with the help of bridging mechanism done with the help of diesel oil and furnace oil.
Fine Coal Treatment Pilot Plant: The Fine Coal Treatment Pilot Plant (FCTPP) was installed for treating coal fine and it is having a number of coal washing equipment HM Cyclone, spiral, forth flotation, oil agglomeration, dewatering screen, ball mill, etc.
Contact Angle Measuring Device: For treating the coal fines below -0.5mm the contact angle plays a major role in flotation, we can measure the contact angle of powder as well as coal blocks, surface tension, wettability and the settling rates can also be determined using this instrument.
Denver Laboratory Flotation Cell: The laboratory flotation cell is used for testing coal fines/mineral for understanding the floatability characteristics of coal/mineral
Hazemag Crusher: It is a pilot scale crusher and it is used as a part of secondary crusher for crushing the coal to below 13mm size.
Zeta Meter: Used for measuring the zeta potential of colloidal suspensions
Different Laboratory Crushers: A combination of gyratory, double rolls, jaw crusher, hammer mill, rod mill, etc. for crushing the coal to different sizes.
Heavy Medium Cyclone: The unit is installed in FCTPP for beneficiation of 13-0.5mm size coal
Wet Tumbler Test: The wet tumbler test is a standard test for testing the amount of fines generation while the coal passes through the entire chain of washing.
LD 7 Spiral: It is the older version of the spiral series and is having four turns which may be used for easy to wash coals.
LC 3 Spiral: This spiral is used for beneficiation of coal -1mm + 0.1mm.The LC3 is the latest version having 8 turns for better beneficiation.
Online Coal Washability Analyser: This is the latest available system where one can have the washability report almost instantly. The system using Dual Energy X-ray Transmission to provide the result of Ash, size, weight, density of each and individual particles as well as density wise in tabular form as cumulative. System is not using any chemical or radioactive source hence it is environment friendly.
|1||Value Addition from coking coal slimes lying in waste settling ponds of washery, CC & DAC, Kolkata, GAP Project||Coal Controller and Development Authority, Kolkata|
|2||Development of Zero Waste Technology for processing and Utilization of Thermal Coal (ZWT-CUP), 12th Five Year Plan.||Planning Commission Govt. of India|
|3||Alternate Complimentary Route of Direct Steel Making||Ministry of Steel|
|4||Development of Technology to produce clean coal from high ash and high sulphur Indian Coal –GAP Project||Ministry of Steel|
|5||To study the in-plant heat loss of coal at Budge Budge thermal power station||CESC, Kolkata.|
|6||Selective Drop breakage studies on coal and stone followed by flotation studies of coal fines supplied by IISCO, Chasnalla.||Indian Iron & Steel Company (IISCO), Chasnalla.|
|7||Scientific and Technical service for quality evaluation of imported coal unloaded at different port ends for metallurgical purposes||Steel Authority of India Limited (SAIL), Kolkata.|
|8||Scientific and Technical service for quality evaluation of coal washery rejects, slurries, tailing dumps for purpose of different end uses||BCCL, CCL, SAIL.|
|9||Recovery of Additional clean coal from washery Middlings using oil Agglomeration Technique||Tata Steel Ltd|
|10||Substitution of imported coal through beneficiation, blending and coke making from indigenous raw materials||Steel Authority of India Limited (SAIL), Chasnalla|
|11||Coal Characterization and washability test of coal sample combined Kamptee – Inder Mines Area, WCL||Western Coalfields Limited (WCL), Nagpur|
|12||Studies on the cleaning potentialities of the coking coal samples from BCCL, supplied by JSW Steel Limited for metallurgical use||JSW Steel Ltd|
|13||Moisture Reduction of sized coal with and without reagent addition using pilot scale centrifuge||Hindalco, Palamu|
|14||Study for reduction of Sulphur content in the coal samples from the opencast projects of BPA Areas||Singareni Collieries Company Limited|
|15||Wet tumble test (with Steel cubes for 5 minutes) of samples collected from CV-302 conveyor of existing DMC plant||Adani Enterprises Limited|
|16||Scientific and Technical service for quality evaluation of coal for its optimum utilization in power generation at NTPL, Tuticorin end. Phase - 2||NTPL, Tuticorin|
|17||Scientific and Technical Evaluation of Flotation Reagents through operation of Pilot Scale Flotation Plant.||TATA Steel Limited, Jamshedpur|
|18||Conducting washability test and of the related studies for Eleven numbers of coking coal seams of Topa, Pundi and Ara OC of Kuju mines, CCL.||Central Coalfields Limited|
|19||Scientific study for arriving at the yield of non-coking coal washery outlet by conducting detailed washability tests for the samples of APPDCL Vijayawada||Andhra Pradesh Power Development Corporation Limited, Vijayawada|
|20||Development of an online coal washability analyser||Ministry of Coal|
To carry our R & D studies on beneficiation of coking, non-coking coal and minerals to meet the requirements of different end users and to achieve excellence in utilization of resources through existing facilities and development of new technologies.