Heating – Tumbler-type rotary - drum furnace – Having combustion products generated in or fed to drum
Patent
1981-08-05
1984-01-10
Camby, John J.
Heating
Tumbler-type rotary - drum furnace
Having combustion products generated in or fed to drum
34 93, 373 1, 373 2, 373 3, 373 5, 373 7, 432 58, F27B 702
Patent
active
044250924
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 multi-stage 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.
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patent: 2621034 (1952-12-01), Stecker
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patent: 4032121 (1977-06-01), Stift et al.
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patent: 4125366 (1978-11-01), Boyer
patent: 4240210 (1980-12-01), Huang
Brachthauser Kunibert
Herchenbach Horst
Camby John J.
Klockner-Humboldt-Deutz AG
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