Industrial furnace, energy-saving operation method of industrial furnace, and modification method of industrial furnace

摘要

PROBLEM TO BE SOLVED: To provide an industrial furnace which generates power while preventing troubles caused by soot etc., and to provide an energy saving operation method of the industrial furnace and a modification method of the industrial furnace.SOLUTION: An industrial furnace includes: an exhaust pipe 6 connecting a combustion chamber 2 to a chimney 5; an air intake on-off valve 13 which is opened to take outer air (ATM) into the exhaust pipe; and an impeller 10a which is connected to a suction blower 10 functioning as a generator and is rotated by the outer air, which is taken through the opened air intake on-off valve and flows in the exhaust pipe, to generate electric power.SELECTED DRAWING: Figure 1