Process for firing ceramic shaped bodies and a tunnel kiln used

Details Process for firing ceramic shaped bodies and a tunnel kiln used Process for firing ceramic shaped bodies and a tunnel kiln used

1990-07-23

1991-09-10

Bennet, Henry A.

Heating

Processes of heating or heater operation

Treating an article, container, batch or body as a unit

432 12, 432 13, 432 18, 428116, 264 63, 264 66, F27D 300, F27B 912, F27B 900, B32B 312

Patent

active

050469460

ABSTRACT:
A process for firing ceramic shaped bodies is disclosed, which comprises the step of making a heating temperature in a temperature range up to a decomposing temperature of a shaping aid contained in the ceramic shaped body smaller than that in a temperature range from the decomposing temperature to a firing temperature. A tunnel kiln is also disclosed, which comprises a preheating zone, a firing zone, a waste heat zone, combustion burners provided at the firing zone, an exhaust means provided at an inlet side of the preheating zone for evacuating combustion gases from the combustion burners outside the kiln, and another exhaust means provided at an outlet side of the preheating zone for evacuating the combustion gases outside the kiln.

REFERENCES:
patent: 4191721 (1980-03-01), Pasco et al.
patent: 4247500 (1981-01-01), Dixon et al.
patent: 4283360 (1981-08-01), Henmi et al.
patent: 4293513 (1981-10-01), Langley et al.
patent: 4455180 (1984-06-01), Hillman et al.
patent: 4518704 (1985-05-01), Okabayashi et al.
patent: 4624812 (1986-11-01), Farrow et al.
patent: 4704242 (1987-11-01), Bandyopadhyay et al.
patent: 4713206 (1987-12-01), Matsuhisa et al.
patent: 4784812 (1988-11-01), Saitoh et al.
patent: 4832887 (1989-05-01), Zeibig

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