Process for the heat-treatment of fine grained material

Details Process for the heat-treatment of fine grained material Process for the heat-treatment of fine grained material

1979-11-13

1981-04-07

Camby, John J.

Heating

Processes of heating or heater operation

Including passing, treating or conveying gas into or through...

106100, 432 18, 432 58, F27B 1500, F26B 912

Patent

active

042603706

ABSTRACT:
A process for the heat-treatment of fine-grained material using a multistage cyclone preheater and a revolving tubular kiln, additional fuel being introduced into a stage of the preheater which is selected according to the grain size, reactivity, moisture content, and incombustible constituent content of the fuel so that most of the fuel is almost completely burnt in the lowermost stage of the preheater. In this way, it is possible to obtain a high degree of calcination of the material before it enters the revolving tubular kiln with low preparation costs.

REFERENCES:
patent: 4088438 (1978-05-01), Deussner et al.

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