Control of combustibles during firing
AssigneeCorning Incorporated
InventorsJohn H. Brennan, Tudor C. Gheorghiu, Mark A. Spetseris
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Abstract
A process for automatically controlling combustible vapors during debinding and firing of ceramic products which includes establishing a maximum percentage of lower flammability limit (LFL) setpoint no greater than 50%; measuring continuously the percentage of LFL in the kiln atmosphere; and, maintaining the measured percentage of LFL to be less than or equal to the maximum percentage of LFL setpoint by an action selected from the group consisting of increasing gas volume delivered to the kiln, decreasing O2 concentration in the kiln, decreasing heating rate in the firing cycle, and combinations thereof.
Claims7
A process for automatically controlling flammable concentrations in a kiln during firing of ceramic products, the method comprising:
- a. establishing a maximum percentage of LFL setpoint no greater than 50%;
- b. measuring continuously percentage of LFL in the kiln;
- and,
- c. maintaining the measured percentage of LFL to be less than or equal to the maximum percentage of LFL setpoint by an action selected from the group consisting of increasing gas volume delivered to the kiln, decreasing O2 concentration in the kiln, decreasing heating rate in the firing cycle, and combinations thereof.
Dependencies are inferred from the claim text.