A machine that combines coal crushing and screening. It consists of a revolving
cylindrical screen 8 to 14 ft (2.4 to 4.3 m) in diameter and 13 to 22 ft (4.0
to 6.7 m) in length. It breaks the coal by gravity impact. On reaching the
desired size, the coal is discharged through the plates. It can deal with
run-of-mine coal up to 12 in (30.5 cm) at a rate of 500 to 600 st/h (454 to 544
t/h), to give a product size of below 1-1/2 in (3.8 cm); other sizes can be
produced, depending on the screen plates used. See also:
screen
Source:
Dictionary of Mining, Mineral, and Related Terms
