Energy-saving dust removing method for smoke of metallurgical semi-airtight electric furnace
A semi-closed, flue gas technology, applied in the direction of furnace, furnace components, energy efficiency improvement, etc., can solve the problems of low temperature resistance, large dust content, non-freezing resistance, etc., and achieve the effect of prolonging service life and high dust removal accuracy
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[0014] Below in conjunction with accompanying drawing, the present invention will be further described:
[0015] As shown in Figure 1: the steps of the energy-saving and dust-removing method for metallurgical semi-hermetic electric furnace flue gas of the present invention are as follows:
[0016] 50t / h steelmaking semi-hermetic electric furnace 1 exhaust gas flow rate 18×10 4 N m 3 / h, temperature 1000℃, dust concentration 25g / Nm 3 It is discharged from the fourth hole, mixed with cold air through the water-cooled sliding sleeve 2, and enters the combustion settling chamber 3 after burning carbon monoxide gas; Mixed with cold wind, the carbon monoxide gas is eventually burned, and the flue gas from the combustion settling chamber 3 is mixed with the flue gas from the exhaust pipe 4 connected to the semi-closed electric furnace 1 and enters the cyclone dust collector 5 for pre-dust removal, and then enters the In the waste heat exchange chamber 6, the high-temperature flue ...
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