Solid material comminution or disintegration – Processes – By utilizing kinetic energy of projected or suspended material
Patent
1994-09-28
1996-09-03
Rada, Rinaldi I.
Solid material comminution or disintegration
Processes
By utilizing kinetic energy of projected or suspended material
241 241, 241 29, 241 791, 241 80, 2411522, B02C 2312, B02C 2314
Patent
active
055516394
ABSTRACT:
The invention relates to a method and to an apparatus for crushing and fine grinding of solid particulate materials, e.g. clinkers used in cement, utilizing a conventional ball mill. More particularly, the invention involves use of such a ball mill in the primary crushing of the material (which use is advantageously limited to the preliminary crushing operation requiring minimum energy consumption), and of a jet mill in the final crushing (conventionally done in a ball mill also). The jet mill is incorporated in a secondary independent grinding circuit which grinds the material to the required fineness value. The method of usage of the high capacity jet mill in combination with the ball mill, which is operated in the preliminary crushing mode differing from the conventional mode, considerably decreases energy consumption for the grinding process and can be used during the modernization of existing ball mills in different fields of industry such as in cement production--for grinding of cement precursors such as raw material mixtures and clinker, slags, quartz sands, carbonate-containing raw material, in ceramic articles manufacturing--for fine dispersity powder production, compound materials and others.
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Artemjev Vladimir K.
Garcia-Segovia Amando J.
Cementos Mexicanos, S.A.
Dexter Clark F.
Rada Rinaldi I.
S. Safford A. Thomas
Standart 90
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