Coal comminution and sizing
T.C. Eisele, H.J. Walqui and S.K. Kawatra, Michigan Technological University,USA
Abstract:
As-mined coal must be crushed and sized to manageable particle sizes for either utilization, or for feed to a preparation plant. This chapter reviews the methods for breaking particles, and for sorting the broken coal into sizes appropriate for further processing. These include rotary breakers, roll crushers, vibrating sieves, and related equipment.
Key words
crushing
breakers
hammermills
sieving
screens
9.1 Introduction
Before as-mined coal can be used, it generally must be pre-treated to convert it from coarse lumps to a more suitable form (EIA, 2011). This consists mainly of crushing and grinding (together referred ...
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