Solid material comminution or disintegration – Apparatus – With separation or classification of material
Patent
1993-07-15
1995-05-09
Husar, John
Solid material comminution or disintegration
Apparatus
With separation or classification of material
241171, 209400, 209401, B02C 1707
Patent
active
054132886
ABSTRACT:
A partition diaphragm which divides a grinding chamber of a ball mill into several chambers is formed into a compound structure comprising a primary screen plate and a secondary screen plate, with the slit clearance of the secondary screen plate being smaller than that of the prior art while avoiding the occurrence of blinding. The secondary screen plate of the partition diaphragm is comprised of a wire sieve provided with fine slits having a trapezoidal shape in section. The wire seive is loosely disposed between adjacent members so as to be freely movable to a certain extent. Since there is no sticking of material by movement of the wire sieve in spite of the slit clearance in the wire sieve, fine particles in the partition diaphragm can move smoothly and the two grinding chambers are well-balanced, resulting in an improved grinding efficiency.
REFERENCES:
patent: 1770977 (1930-07-01), Fowden
patent: 3483974 (1969-12-01), Pearsall
patent: 4256264 (1981-03-01), Hansen et al.
patent: 4369926 (1983-01-01), Rasmussen et al.
patent: 4904378 (1990-02-01), Arai
patent: 5221008 (1993-06-01), Derrick, Jr. et al.
patent: 5292077 (1994-03-01), Inui et al.
Inui Yasuo
Yagi Nobuhito
Husar John
Kurimoto Ltd.
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