Apparatus for the heat treatment of fine-grained material

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

1988-01-19

1989-03-28

Yuen, Henry C.

Heating

Tumbler-type rotary - drum furnace

Having combustion products generated in or fed to drum

432 78, 432 14, F27B 702

Patent

active

048159700

ABSTRACT:
The invention relates to apparatus for the heat treatment of fine-grained material having a rotary drum furnace, a preheater, a cooler, and a combustion chamber for precalcination of the material. Exhaust air from the cooler is delivered on the one hand to the combustion chamber and on the other hand via two pipes directly to the furnace exhaust gas pipe, and connections for the supply of fuel and preheated material are provided in these latter pipes shortly upstream from the point at which they open into the furnace exhaust gas pipe.

REFERENCES:
patent: 4209296 (1980-06-01), Deussner
patent: 4226586 (1980-10-01), Brachthauser et al.
patent: 4257766 (1981-03-01), Ritzmann et al.
patent: 4392822 (1983-07-01), Brachthauser et al.
patent: 4402667 (1983-09-01), Goldmann
patent: 4514170 (1985-04-01), Kupper
patent: 4640681 (1987-02-01), Steinbiss et al.

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