1 Effect of the grinding behaviour of coal blends on coal utilisation .Grinding of a high volatile bituminous coal was performed in three comminution devices: Raymond Mill, Rolls Crusher and Ball Mill. The pulverised samples.coal grinding bituminous,Coal Characteristics - Purdue Universityelectric power generation in the U.S. It has a higher heating value than either lignite or sub-bituminous, but less than that of anthracite. Bituminous coal is mined.
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