Method and apparatus for calcining lime

Details Method and apparatus for calcining lime Method and apparatus for calcining lime

1982-07-27

1984-11-20

Dell, John

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Alkaline earth metal

106100, 422189, 422233, 423637, 432 14, 432 15, 432 58, C01F 1106

Patent

active

044838310

ABSTRACT:
A method and apparatus for calcining lime, dolomite or similar materials in which the raw material to be calcined is preheated in a preheating zone by exhaust gases from a calcining zone, cooled by means of combustion air in a cooling zone, the combustion air passing from said cooling zone into said calcining zone and then into the preheating zone. A specific improvement of the invention resides in adding fuel in the calcining zone at a plurality of spaced locations along the calcining zone in the direction of flow of the combustion air therethrough.

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patent: 3212764 (1965-10-01), Muller et al.
patent: 3796791 (1974-03-01), Nielsen et al.
patent: 3862294 (1975-01-01), Engelhart et al.
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patent: 4187071 (1980-02-01), Brachthauser et al.
patent: 4210632 (1980-07-01), Rourke
patent: 4220631 (1980-09-01), Serbent et al.
Reh, "Fluidized Bed Processing", Chemical Engineering Progress, vol. 67, No. 2 (Feb. 1971, pp. 58-63.
Boynton, Chemistry and Technology of Lime and Limestone, Interscience Publishers (1966), pp. 138, 139.

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