Method of heat treating fine granular material

Details Method of heat treating fine granular material Method of heat treating fine granular material

1976-03-18

1977-07-12

Camby, John J.

Heating

Processes of heating or heater operation

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

432 58, 432106, F27B 1500, F27B 702

Patent

active

040351394

ABSTRACT:
A chamber which forms a material inlet and an exhaust gas outlet at one end of a rotary kiln has an inclined bottom arranged to cause preheated fine material deposited thereon to slide by gravity into the end of the rotary kiln. A dense stream of fine granular material is deposited on such inclined surface, and fuel in finely divided form is introduced into the dense stream of material flowing down the inclined surface to cause the fuel to become intimately mixed with the material. Gas is discharged from the kiln in contact with the stream of material as such a velocity as to entrain a substantial proportion of such stream, the temperature and composition of the gas being such as to cause combustion of the fuel mixed with the entrained material.

REFERENCES:
patent: 3881861 (1975-05-01), Ritzmann
patent: 3904353 (1975-09-01), Bosshard et al.
patent: 3910754 (1975-10-01), Weber et al.
patent: 3932116 (1976-01-01), Hansen
patent: 3932117 (1976-01-01), Ritzmann

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