EXHAUST GAS TREATMENT FACILITY AND DUST RECOVERY METHOD BY EXHAUST GAS TREATMENT FACILITY

摘要

PPROBLEM TO BE SOLVED: To provide an exhaust gas treatment facility capable of facilitating effective use of dust by separating and recovering dust in exhaust gas discharged from a molten metal manufacturing furnace and of easily controlling furnace pressure of the molten metal manufacturing furnace and exhaust gas composition. PSOLUTION: The exhaust gas treatment facility 1 is provided with an exhaust gas duct 2 which is communicated with a smoke stack 12 for discharging exhaust gas from an exhaust gas outlet 21 of the molten metal manufacturing furnace 20 discharging high-temperature exhaust gas including dust to the atmosphere after the dust is removed from the exhaust gas and in which a dust collecting means and a suction fan 5 are interposed. The dust collecting means comprises a wet type dust collector 3 interposed in the molten metal manufacturing furnace 20 side of the exhaust gas duct 2 and collecting coarse particle dust and a dry type dust collector 4 interposed in the suction fan 5 side of the wet type dust collector 3 and collecting fume type particulate dust. PCOPYRIGHT: (C)2010,JPO&INPIT