Method of operating a furnace

Details Method of operating a furnace Method of operating a furnace

2008-05-05

2011-12-27

Rinehart, Kenneth (Department: 3743)

Combustion

Process of combustion or burner operation

Controlling or proportioning feed

C431S115000, C431S216000, C431S217000, C110S204000

Reexamination Certificate

active

08083517

ABSTRACT:
A method of firing a burner into a furnace process chamber supplies the burner with fuel and combustion air at a ratio that provides a level of excess air. The method includes the steps of reducing the flow rate of combustion air, and maintaining the level of excess air when the flow rate of combustion air is being reduced. Other steps include withdrawing exhaust gas from the process chamber, and supplying the burner with the exhaust gas at an increasing flow rate when the flow rate of combustion air is being reduced.

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