Roll crusher for crushing lumpy material

Details Roll crusher for crushing lumpy material Roll crusher for crushing lumpy material

1980-03-17

1982-07-20

Rosenbaum, Mark

Solid material comminution or disintegration

Apparatus

Rotary striking member with feed or discharge conveyor or...

241187, 241189R, 241190, B02C 13286

Patent

active

043401856

ABSTRACT:
A roll crusher for crushing lumpy material particularly coal and other minerals comprises a conveyor trough having a trough bottom with a plurality of longitudinally extending laterally spaced chains trained to run over the trough bottom and move through a path from beneath a crushing roller of the roll crusher. The crushing roller is rotatably mounted above the trough bottom and has a rotatable shaft portion with a plurality of radially extending axially spaced and angularly offset striker portions along its length. A plurality of pushers extend laterally between and interconnect adjacent strands so as to form a chain mat type structure of the conveyor which moves along the trough beneath the crusher roll. The chains are spaced laterally apart by spacing comprising a clearance selected to be equal to or less than the maximum grain size to be formed in the material by the crusher. The pushers are longitudinally spaced between adjacent chains and disposed in respect to the crusher rolls as the striking tools rotate through paths bringing the outer ends of the crushing tools between adjacent strands of the chain. The pushers are advantageously made of a height lower than the vertical links of the chains so that they form trough type recesses therebetween. The pusher height is advantageously made substantially equal to half the height of the vertical chain links. The pushers of adjacent strands are staggered preferably by the length of one vertical chain link.

REFERENCES:
patent: 4047673 (1977-09-01), Aulmann et al.
patent: 4061398 (1977-12-01), Parkes

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