Scrap steel preheating and continuous feeding system constructed based on waste heat recovering channel of electric-arc furnace and application method of system
A waste heat recovery and feeding system technology, applied in electric furnaces, furnaces, waste heat treatment, etc., can solve the problems of low preheating temperature of scrap steel, insufficient contact between gas and scrap, and uncommon application.
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[0071] The present invention will be further described below in conjunction with the drawings and embodiments.
[0072] The implementation of the electric arc furnace waste heat recovery channel is as follows:
[0073] Such as figure 1 The electric arc furnace waste heat recovery channel includes a draft tube 10 connected and fixed on the fourth hole of the electric arc furnace, and also includes an upright heat exchange storage box 30. The bottom side air inlet of the heat exchange storage box 30 32. Externally fix a transition pipe 20 which is inclined downwardly and press-fitted to communicate with the top opening of the draft tube. The air outlet 33 on the top side of the heat exchange storage box 30 is slanted downward to externally connect a preheating channel 40, and the lower end of the preheating channel 40 is sealed along An air collecting pipe 80 for discharging coal gas and a natural exhaust pipe 90 for discharging the air entering the preheating passage 40 are sequen...
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