The heat exchanger is an important part of the center of bottom burner furnace, four corners burner soaking pit and one sided upper burner soaking pit for the preheating of the air or gas. The first two stove of heat exchanger is arranged in the stove on both sides of the wall outside, 
after a set the end wall burner in an external, are located in the flue and the exhaust vent and furnace stare Unicom.
after a set the end wall burner in an external, are located in the flue and the exhaust vent and furnace stare Unicom.
The lining of heat exchanger is made of clay brick, and its brick type has four holes of clay brick, circular or star shaped clay or clay brick, etc… The characteristic is that the preheating temperature of air and gas is high, but the air leakage rate is big, and the service life is about 1 year… When high alumina silicon carbide refractory cast material, the centrifugal method is used to form round pipe brick, the length of 2m is above, and the leakage rate is reduced, the service life is increased by 50%…
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