Heating – Processes of heating or heater operation – Including melting – vaporizing – sintering – expanding...
Patent
1978-04-13
1980-01-15
Camby, John J.
Heating
Processes of heating or heater operation
Including melting, vaporizing, sintering, expanding...
241176, 241183, 432118, F27B 714
Patent
active
041837266
ABSTRACT:
A freely rotating rod or rods to be used in a high temperature rotary kiln, especially a cement kiln, to provide a combination of mixing and heat transfer is disclosed. The heat stable construction material and design of the rod permit heat in the kiln to be transferred more readily to the core of a feed material in a pyro-processing process, resulting in a more homogeneous end product.
The rod has a unique and critical tapered structure of gradually enlarging transverse cross section. The rod, because of its tapered design, may be placed in the kiln oriented with the smaller cross section lying uphill to offset its tendency to travel downhill with the moving feed. The rod then remains generally stationary in its section of the kiln. Alternately, the rod may be sized and oriented so that it will travel through the kiln with the feed if such is desired. In the latter example, the degree of taper determines the speed of travel. Finally, the rod may be sized and oriented to travel uphill against the flow of material.
REFERENCES:
patent: 841728 (1907-01-01), Sly
patent: 2557528 (1951-06-01), Andrews
patent: 2666633 (1954-01-01), Bojner
patent: 2868463 (1959-01-01), Hall
patent: 3030091 (1962-04-01), Wicken et al.
patent: 3169016 (1965-02-01), Wicken et al.
patent: 3442497 (1969-05-01), Gantz
Camby John J.
Moyerman Ruth
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