Method and apparatus for the thermal treatment of fine-grained m

Details Method and apparatus for the thermal treatment of fine-grained m Method and apparatus for the thermal treatment of fine-grained m

1981-03-10

1982-04-06

Poer, James

Compositions: coating or plastic

Coating or plastic compositions

Proteinaceous material containing

432 13, C04B 736

Patent

active

043233970

ABSTRACT:
Method and apparatus for the thermal treatment of finely divided material for the calcination of cement wherein the material is preheated in a multi-stage heat exchanger and later passed to a calcining furnace. The material is partly deacidified in a pre-calcination zone before entering the sintering furnace where further calcining and sintering of the material is completed. A portion of the feed material is treated with rapidly oxidizing fuel components in a pre-calcination zone in a first stage and with more slowly oxidizing fuel components in a second stage, the more slowly oxidizing fuel components being a mixture of relatively fine granulated fuel particles of substantially uniform size and larger particles of briquetted or coarsely broken fuel.

REFERENCES:
patent: 3957521 (1976-05-01), Ritzmann
patent: 4022629 (1977-05-01), Garrett et al.
patent: 4066470 (1978-01-01), Brachthauser et al.
patent: 4123288 (1978-10-01), Stringer et al.
patent: 4249892 (1981-02-01), Brachthauser et al.

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