Crushing of coal and calculation of size reduction efficiency.
Knowledge piece on Crushing of Coal and Efficiency of Crushers Utsav Kant 2/25/2015 6:58:05 AM 1 2. ... Rotary Breaker • The forerunner of the rotary breaker was the heavyduty trommel sizing screen. • This type of screen, used extensively a hundred years ago, was observed to break coal down by its tumbling action whilst having little ...