METHOD FOR CONTROLLING OF GRINDING PROCESS Russian patent published in 2007 - IPC B03D1/02 B03B7/00 

FIELD: automatically controlled operation of concentration mills, in particular, flotation separation of converter matte.

SUBSTANCE: method involves additionally determining content of 20-45 micrometer fractions in wastes of test classifications of first and second grinding stages and maintaining said content within the range of 15-20% and 10-15% by weight of ground mass, respectively, and maintaining content of fraction sized up to 45 μm within the range of 45-50% and 25-35% by weight of ground mass, respectively, with waste density of 2.0-2.2 kg/l and 1.9-2.1 g/l, respectively, by altering water to converter matte ratio during charging of first grinding stage mill and density of wastes of test classifications of first and second grinding stages depending on variations in content of fraction of 20 μm to 45 μm; additionally determining content of 5-45 μm fraction and maintaining said content within the range of 65-75% by weight of ground mass, and maintaining content of fraction sized up to 45 μm within the range of 80-95% by weight of ground mass by varying water to converter matte ratio during charging of first stage grinding mill depending on variations in content of 5-45 μm sized fractions.

EFFECT: reduced slug formation and increased extent of releasing concretions of ground crude material.

3 dwg, 2 tbl, 2 ex