Rotary kiln with a polygonal lining

Details Rotary kiln with a polygonal lining Rotary kiln with a polygonal lining

1991-12-24

1994-04-05

Yuen, Henry C.

Heating

Tumbler-type rotary - drum furnace

432110, 432118, 432119, F27B 700

Patent

active

052999335

ABSTRACT:
A rotary kiln having a polygonal lining is disclosed for pyro-processing cement, lime, other minerals, as well as other materials. Specifically, utilizing a polygonal lining of brick or a refractory or ceramic material having between 3 and 12 sides improves the heat efficiency or heat transfer between high-temperature gases and a burden of material to be processed by the kiln. Such an efficient utilization of the gas heat is due to various factors which cause a larger amount of the burden to be more quickly exposed to the high temperature gases. These various factors include increased tumbling, increased residence time, decreased degree of filling, and increased surface exposure.

REFERENCES:
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patent: 3593970 (1971-07-01), Seebald
patent: 4200469 (1980-04-01), Touborg
patent: 4289479 (1981-09-01), Johnson, Jr.
patent: 4344596 (1982-08-01), Hjaeresen
patent: 4978294 (1990-12-01), Uemura et al.
patent: 5097773 (1992-03-01), Freeman

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