Self recuperative radiant tube burner uses high temperature flue gas to preheat combustion--supporting air. The combustion-supporting air enters the burner mixing device along the inner wall of the heat exchanger, the high-temperature flue gas flows out of the furnace in the opposite direction along the outer wall of the heat exchanger, and the heat exchange between the cold combustion-supporting air and the high-temperature flue gas is carried out through the heat exchanger. Due to the use of multistage combustion, the emission of pollutants from the burner is very low.
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