Upgrading of Coal With The Aid of a Knelson Concentrator
R1500,00
Description
A lot of coal fines are generated during the crushing, screening and washing processes. Currently, it is difficult to successfully recover these coal fines. Conventional gravity processes generally have poor efficiencies in treating coal less than 1mm. The centrifugal separators have been proved to be the better route for processing these coal fines (Uslu, Sahinoglu and Yavuz, 2012). The study herein focused on the upgrading of coal with the aid of a Knelson concentrator (KC) specifically the deashing of coal fines (-1 mm size fraction). The experiments were conducted at the University of Pretoria with a laboratory KC-MD3 batch type Knelson concentrator.
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Dry Processing of Coal – Progress Report: Tests Conducted on the IMS / Slater Coal Marketing Allair Dry Jig
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Test work on a dry jig installed at a Balmoral site, covering coal sized below 50 mm and duff below 12 mm, for producers considering waterless beneficiation.
What this report foundA 30 tonne per hour pilot Allair dry jig upgraded run of mine coal to thermal coal specification, but could not effectively beneficiate finer duff.
R1500,00
201613 pages
A 30 tonne per hour pilot Allair dry jig upgraded run of mine coal to thermal coal specification, but could not effectively beneficiate finer duff. Cut point densities and EPM values matched other dry processing equipment, though the jig appeared to give better control of the parameters governing separation. Four tests ran on run of mine coal and two on duff.