Solid material comminution or disintegration – Processes – Plural successive comminuting operations
Patent
1976-12-28
1978-05-23
Custer, Jr., Granville Y.
Solid material comminution or disintegration
Processes
Plural successive comminuting operations
241 30, 241 70, 241 793, B02C 1706
Patent
active
040906710
ABSTRACT:
A multi-compartment tube mill is disclosed for the grinding of coarse material such as cement clinker in which the tube mill is divided into at least two mill sections each of which includes at least one grinding chamber. An inlet is provided at one end of the tube mill for the coarse material and for ventilating air or gas to ventilate the tube mill and for heat exchange with the material. An outlet is provided at the opposite end of the tube mill for the ground product. Disposed between the two mill sections is a composite diaphragm which defines a separation zone therebetween for removing humidity from the first mill section, and for introducing fresh ventilating air or gas into the second mill section. A method is disclosed for grinding coarse material in the inventive tube mill in which atmospheric conditions are controlled from the inlet to the outlet of the mill.
REFERENCES:
patent: 1246775 (1917-11-01), Mushett
patent: 1504777 (1924-08-01), Newhouse
patent: 1620982 (1927-03-01), Newhouse
patent: 3013734 (1961-12-01), Hirschmann
patent: 3289950 (1966-12-01), Helming et al.
patent: 3877650 (1975-04-01), Cornford
Custer, Jr. Granville Y.
F. L. Smidth & Co.
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