Pilot-Scale Baum Jig Washing for Beneficiation of a High-Ash Indian Noncoking Coal

Abstract

Coal will continue to play an important role in overall energy scenario in India. Despite its high-ash content, the run-of-mine (ROM) Indian coals are used directly for thermal power generation. There is an urgent need to improve quality of coal by reducing ash so that a consistent supply of quality coal can be supplied to the power plants. Pilot-scale studies were conducted on beneficiation of High Ash Indian Non Coking Coal obtained from the Samleshwari mines using a 20-t/h Baum Jig Washer. The results of the pilot-scale studies revealed that the ROM coal, containing 50% ash content, could be cleaned with the Baum jig providing a clean coal containing 36% ash at a yield of 52%.

Destoning the Moatize Coal Seam, Mozambique, by Dry Jigging

“…Having a relatively high unity capacity and operational flexibility, jigging is a classical item used in the concentration of relatively coarse coal. Coal pre-concentration by jigging is traditionally carried out in hydraulic jigging devices, such as the Baum and Batac jigs [12]. However, with pressure to reduce water usage, old dry beneficiation technologies have been reconsidered while new techniques are starting to be developed.…”

Beneficiation of Coal with Biochemical Method and Effect of Treated Coal on Boiler Efficiency in Power Generatation

“…Above quality clearly indicates the lowgrade coal hence beneficiation of coal is essential. With regard to the beneficiation of coal various physical and chemical methods are in practice, physical methods include Jig washing, froth flotation and magnetite cyclonic wash which are mainly density-based separation of impurities from the coal [5][6][7][8][9][10][11][12][13][14] . whereas pure chemical methods used acids, bases and their combinations [15][16][17][18][19][20][21][22][23][24][25] .…”