System for burning fine-grained material, particularly for the m

Details System for burning fine-grained material, particularly for the m System for burning fine-grained material, particularly for the m

1981-06-01

1983-07-12

Camby, John J.

Heating

Tumbler-type rotary - drum furnace

Having combustion products generated in or fed to drum

219279, 219280, 373 1, 373 5, 373 7, 373 10, 432105, F27B 702, F27D 1100, H05B 1100, F27B 736

Patent

active

043928226

ABSTRACT:
The invention relates to a method for burning fine-grain material, particularly for the manufacture of cement clinker from cement raw meal. The material is thermally treated in a multistage burning process with a pre-heating stage, a calcining stage with a high-degree of calcination, a sintering stage in a very short rotary kiln and a cooling stage. Fuel is introduced both into the sintering stage in the short rotary kiln as well as into the calcinating stage. Hot exhaust air from the cooling stage is supplied both to the sintering stage as well as to the calcining stage as furnace air. The invention also relates to an apparatus for the manufacture of mineral products of the burning process such as cement clinker.

REFERENCES:
patent: 2108043 (1938-02-01), Crist
patent: 2337072 (1943-12-01), Tarbox
patent: 3275787 (1966-09-01), Newberry
patent: 4052148 (1977-10-01), Pennell et al.
patent: 4105396 (1978-08-01), Ritzmann
patent: 4136965 (1979-01-01), Sunnergren et al.

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