Heating – Processes of heating or heater operation – Including passing – treating or conveying gas into or through...
Patent
1981-11-20
1983-11-22
Camby, John J.
Heating
Processes of heating or heater operation
Including passing, treating or conveying gas into or through...
106100, 432106, F27B 1500, F26B 702, C04B 702
Patent
active
044166222
ABSTRACT:
A method is disclosed for treating granular or pulverous raw material in a kiln plant including a preheater stage, a precalciner stage and a separator stage coupled to one another. Precalcined material is separated after the separator stage into a first and second material flow. The first material flow is suspended in spent cooling air and fed to a reaction zone zone for burning and melting the material therein. The melted material is fed to a cyclone for separating smoke gases therefrom and thereafter to a rotating nodulization drum. The second material flow is also fed to the rotating nudulization drum and mixed therein with the melted material so as to avoid any sticking and clogging of the melt. A kiln for practicing the method of the present invention is also disclosed. In preferred alternative embodiments, the reaction chamber can be either a shaft-like chamber or a cyclone burner.
REFERENCES:
patent: 4130390 (1978-12-01), Kobuyashi et al.
patent: 4209296 (1980-06-01), Deussner
Camby John J.
F. L. Smidth & Co.
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