Heating – Shaft type – Having combustion products generated in or fed to shaft
Patent
1978-10-20
1980-06-10
Camby, John J.
Heating
Shaft type
Having combustion products generated in or fed to shaft
432102, 432138, 432139, F27D 108
Patent
active
042070619
ABSTRACT:
In a top-shaped lime kiln which comprises a slowly rotatable platter-shaped kiln bed having a cylindrical calcined lime-cooling chamber extending downward for connection to the central opening of said kiln bed; an immovably hung round lid having a fuel combustion chamber extending upward for connection to the central opening of said lid; and raw limestone granules-feeding chutes 19 opened to an annular gap 12 formed between the peripheral walls of both bed and lid; an improvement wherein a hot-gas-circulating apparatus is fixed in the maturation zone of the cooling chamber, and automatically reciprocative pushing rods are inserted into the limestone granule layer formed on the rotary kiln bed through the peripheral wall of said bed or lid so as to let fall the calcined lime into the cooling chamber.
REFERENCES:
patent: 1999761 (1935-04-01), Howard
patent: 3050298 (1962-08-01), Hall
patent: 3331595 (1967-07-01), Nelson et al.
Page 64 of Publication II, Handbook of Gypsum and Lime, published on Jun. 15, 1972.
Chisaki Tatsu
Ikenaga Toshio
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