Process of thermally treating bulk materials in a rotary kiln

Details Process of thermally treating bulk materials in a rotary kiln Process of thermally treating bulk materials in a rotary kiln

1981-10-13

1983-07-05

Camby, John J.

Heating

Processes of heating or heater operation

Including apparatus heat-up, cool-down or protection

266241, 432 77, 432116, F27D 700, F27D 2300, F27B 738

Patent

active

043915833

ABSTRACT:
In the treatment of bulk materials with hot gases below the melting point of the charge component it is desired to prevent a formation of undesired crusts during normal operation and when the rotary kiln is operated at a reduced speed during short-time trouble. For this purpose, a controlled dissipation of heat is effected in several sections of the rotary kiln in that the shell of the kiln and the refractory lining are cooled so that the temperature of that portion of the inside surface of the rotary kiln which is submerged below the charge is always maintained at or up to 50.degree. C. below the temperature of the charge disposed thereover.

REFERENCES:
patent: 118674 (1871-09-01), Baynton
patent: 939817 (1909-11-01), Edison
patent: 1869237 (1932-07-01), Bruhn
patent: 2671858 (1954-03-01), Moore
patent: 4102530 (1978-07-01), Hawkes et al.

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