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

1978-08-11

1980-10-07

Camby, John J.

Heating

Tumbler-type rotary - drum furnace

Having combustion products generated in or fed to drum

432 58, F27B 702

Patent

active

042265860

ABSTRACT:
An apparatus for the thermal treatment of fine-grained material such as for the calcination of cement including a suspension type gas heat exchanger having a plurality of stages of progressively higher temperatures in the direction of material flow. A conduit connects the hottest stage of the heat exchanger with a rotary kiln. A combustion zone is provided within the conduit and rapidly oxidizing fuel components are introduced into this combustion zone. Slowly oxidizing fuel components are introduced into the rotary kiln in a second combustion zone.

REFERENCES:
patent: 4002420 (1977-01-01), Christiansen
patent: 4004876 (1977-01-01), Sylrest
patent: 4035139 (1977-07-01), Goldmann et al.
patent: 4088438 (1978-05-01), Deussner et al.
patent: 4118176 (1978-10-01), Mollenkopf

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