Ngk Insulators, Inc.

Kenji Kawaguchi

Yasuhiro Ito

Yasushi Okumura

Tsuyoshi Kuroda

A method for controlling kiln pressure for a shuttle kiln having an exhaust gas fan and an exhaust gas damper in an exhaust gas passage includes the steps of performing a control operation for controlling the number of revolution of the exhaust gas fan to control flow rate of the exhaust gas to maintain the kiln pressure at a predetermined pressure, and performing a control operation for adjusting opening of the exhaust gas damper based on the number of revolution of the exhaust gas fan. The method can expand the control range of exhaust gas flow, and operation with energy saving efficiency can be performed.

Method for controlling kiln pressure

A method of firing a ceramic formed body, in which the ceramic formed body is fired by controlling a firing output state in such a manner that a high output state and a low output state are repeated reciprocally, is disclosed. In the method of firing a ceramic formed body, the improvement controls an opening angle of a burner defining the high output state, while a pulse output defining a reciprocal interval between the high output state and the low output state is maintained at constant.

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Nagoya, Japan

Kenji Kawaguchi