Method for controlling the preheating zone of a tunnel kiln

Details Method for controlling the preheating zone of a tunnel kiln Method for controlling the preheating zone of a tunnel kiln

1989-05-03

1990-05-01

Yuen, Henry C.

Heating

Processes of heating or heater operation

Controlling flame position or work atmosphere

432145, 432148, 432152, 432186, 432128, F27D 700, F27B 902

Patent

active

049214225

ABSTRACT:
This disclosure is directed to a method for controlling the preheating zone of a tunnel kiln which includes firing and cooling zones. The method comprises forcedly blowing air from the entire ceiling portion of the preheating zone in the downward direction to diffuse hot combustion gas present in the upper portion and to reducing a difference in temperature between the upper and lower portions of the preheating zone. Air may be blown into the preheating zone at a flow rate determined from the quantity of the combustion gas within the preheating zone.

REFERENCES:
patent: 1725129 (1929-08-01), Carpenter et al.
patent: 2180041 (1939-11-01), Durieux
patent: 3119166 (1964-01-01), Ostermaier
patent: 3170681 (1965-02-01), Davies
patent: 3860222 (1975-01-01), Tennenhouse
patent: 3982887 (1976-09-01), Kendziora et al.
patent: 4140479 (1979-02-01), Sirch et al.
patent: 4249895 (1981-02-01), Mantegani
patent: 4493641 (1985-01-01), Hubbert
patent: 4527974 (1985-07-01), Carraroli et al.

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