Coal preparation system

Details Coal preparation system Coal preparation system

1996-04-29

1997-10-14

McAvoy, Ellen M.

Fuel and related compositions

Coal treating process or product thereof

Removal of undesirable

44620, C10L 900

Patent

active

056767102

ABSTRACT:
A coal preparation plant separates a low specific gravity clean coal fraction from a high specific gravity refuse fraction, and separately processes those fractions. Run of mine coal having particle sizes up to about 4 inches is mixed with a slurry of water and magnetizable particles, and is introduced into a heavy media cyclone to separate the high and low specific gravity fractions. The high specific gravity refuse fraction is delivered to a first magnetic separator to extract the magnetizable particles, while the low specific gravity clean coal fraction is delivered to a second magnetic separator to remove the magnetizable particles. The system is highly efficient and has a high processing capacity.

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patent: 5236089 (1993-08-01), Smithan et al.
patent: 5277368 (1994-01-01), Kindig et al.

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