Method and apparatus for thermally treating pulverulent material

Details Method and apparatus for thermally treating pulverulent material Method and apparatus for thermally treating pulverulent material

1981-11-16

1983-12-13

Camby, John J.

Heating

Processes of heating or heater operation

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

34 57E, 106100, 432105, 432106, F27B 1500, F26B 1700, C04B 702

Patent

active

044203020

ABSTRACT:
A method for thermally treating pulverulent material, i.e., keeping the material at a certain temperature, the treating temperature, in a desired period of time, in particular sintering, pulverulent material in a rotary kiln slightly inclined to the horizontal. The method is especially applicable for thermally treating materials which tend to become sticky at the treating temperature, in particular for sintering pulverulent materials, i.e., agglomerating these by heating without complete melting. However, the method is also useful for general thermal treatment where sintering is not intended, e.g., for burning Bauxite, Mesa and phosphate bearing ores. An example of a sintering process to which the invention is particularly applicable is the manufacture of cement clinker where the pulverulent material to be sintered is hot calcined cement raw meal. An apparatus for practicing the method of the present invention is also disclosed.

REFERENCES:
patent: 2489211 (1944-01-01), Witt
patent: 2776132 (1957-01-01), Pyzel
patent: 3013786 (1961-12-01), Pyzel
patent: 3603568 (1971-09-01), Ritzmann
patent: 3799735 (1974-03-01), Jensen
patent: 4002420 (1977-01-01), Christiansen
patent: 4039277 (1977-08-01), Kobayashi et al.

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