B - Operations – Transporting – 02 – C
Patent
B - Operations, Transporting
02
C
241/19
B02C 25/00 (2006.01) B02C 23/12 (2006.01)
Patent
CA 1284976
Abstract The invention relates to a method and apparatus for the two-stage crushing of brittle material for grinding using a roll mill and a mill connected after it in which a branch stream of the grit obtained in the sifting operation is returned to the roll mill and a further branch stream is returned to the second mill. A first control circuit keeps the sum of the quantity of fresh material and the quantity of grit constant, whilst a second control circuit divides the quantity of grit into two branch streams in such a way that the drive power of the roll mill remains constant.
553271
Adrian Franz J.
Blasczyk Gotthardt
Kropf Hardy
Mersmann Heinz-Georg
Patzelt Norbert
Adrian Franz J.
Blasczyk Gotthardt
Kropf Hardy
Krupp Polysius Ag
Macrae & Co.
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