Heating – Tumbler-type rotary - drum furnace – Having combustion products generated in or fed to drum
Patent
1979-01-08
1981-04-07
Camby, John J.
Heating
Tumbler-type rotary - drum furnace
Having combustion products generated in or fed to drum
34135, 432 72, 432116, 432118, F27B 700, F27B 714, F27B 738
Patent
active
042603730
ABSTRACT:
A system for drying and preheating small metallic particles such as chips, turnings, borings and the like to remove volatiles therefrom which includes a dryer working in conjunction with a briquetting press. The dryer includes a drying and preliminary combustion chamber includng a revolving drum therein through which the chips pass. The drying and preliminary combustion is heated and is atmospherically sealed and operated with a reducing atmosphere. The volatiles driven from the metallic particles are passed to a combustion completion chamber which is maintained at a temperature sufficient to burn the combustibles and into which air is injected to complete the combustion. The hot metallic particles are thermally insulated and sealed from the atmosphere while being conveyed from the drying and preliminary combustion chamber to the briquetting press where they are compressed into briquettes for subsequent introduction into induction furnaces and the like.
REFERENCES:
patent: 1064263 (1913-06-01), Wallos
patent: 1992467 (1935-02-01), Blythe
patent: 3739488 (1973-06-01), Khan
patent: 3811822 (1974-05-01), Cherenson
patent: 4094633 (1978-06-01), Peterson et al.
Fellnor John R.
Love, Jr. William J.
Camby John J.
Combustion Engineering Inc.
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