Method and apparatus for crushing material for grinding

Details Method and apparatus for crushing material for grinding Method and apparatus for crushing material for grinding

1990-06-11

1991-10-08

Rosenbaum, Mark

Solid material comminution or disintegration

Processes

With classifying or separating of material

241 29, 241 79, 241 80, 241152A, B02C 400

Patent

active

050546945

ABSTRACT:
The invention relates to a method and to apparatus for crushing material for grinding, in which the material for grinding first of all passes in multiple circulation through a grinding stage which operates on the pressure crushing principle and then without further grinding is delivered to a classification stage consisting of two classification assemblies set to different degrees of fineness, the streams of fines from the two classification assemblies being mixed together. By the combination of these two measures a desired flattening of the particle size distribution of the end product is achieved.

REFERENCES:
patent: 4703897 (1987-11-01), Beisner et al.
patent: 4783012 (1988-11-01), Blasczyk et al.
patent: 4840315 (1989-06-01), Rubin et al.
patent: 4889289 (1989-12-01), Lohnherr et al.

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