Manufacture of cement

Details Manufacture of cement Manufacture of cement

1976-12-13

1978-09-05

Camby, John J.

Drying and gas or vapor contact with solids

Apparatus

With means to treat gas or vapor

34 62, 106100, 432 18, 432 78, 432106, F26B 700, F27B 702

Patent

active

041109155

ABSTRACT:
Clinker coming from a rotary tubular kiln is cooled by moving a layer of the clinker of a grate in a cooler from a hot zone to a successively cooler zone by introducing fresh air in the cooler zone and passing in countercurrently through the layer of the clinker several times whereby a heat exchange takes place between the air and the clinker, the clinker becoming successively cooler and the air successively hotter. The air is introduced from the cooler zone sequentially into two sections of the hot zone, air at a temperature above 1000.degree. C is removed from a first section in the hot zone, and air at a lower temperature is conducted from the second section in the hot zone into the kiln where it is used as secondary heating air for the raw material therein.

REFERENCES:
patent: 2375487 (1945-05-01), Newhouse
patent: 3273255 (1966-09-01), Kramer
patent: 3891383 (1975-06-01), Kobayashi
patent: 3922797 (1975-12-01), Dick

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