Method and apparatus for calcining limestone in a shaft kiln

Details Method and apparatus for calcining limestone in a shaft kiln Method and apparatus for calcining limestone in a shaft kiln

1982-04-22

1983-11-08

Straub, Gary P.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Alkaline earth metal

423637, 432 22, 432 96, C01F 1106, C01B 1314, F27B 322

Patent

active

044141866

ABSTRACT:
A method and apparatus for calcining minerals, particularly limestone, in a shaft kiln having at least two vertically spaced levels including cooled hollow supports through which a solid fuel is introduced into the kiln. One feature of the present invention resides in employing a granular coal as the fuel while other features are involved with the distribution of fuel between various inlet points, suspension of the fuel in an airstream, and the mechanical construction of the fuel conduits and their support located within the shaft kiln.

REFERENCES:
patent: 2933297 (1960-04-01), Erasmus et al.
patent: 3941557 (1976-03-01), Buchner
patent: 3969068 (1976-07-01), Miller et al.
patent: 4031183 (1977-06-01), Rourke
patent: 4131072 (1978-12-01), Lingl, Jr. et al.
patent: 4141154 (1979-02-01), Buchner
patent: 4250816 (1981-02-01), Angevine et al.
patent: 4287160 (1981-09-01), von Zander
patent: 4313386 (1982-02-01), Boldt et al.
patent: 4315735 (1982-02-01), Fussel et al.

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