| The fume and dust of electric furnace in steelmaking operation is one of the pollution sources in the steel industry, which has great discharge amount, high temperature of the exhaust gas, small size of the dust hydrophilic, etc., which make it difficult to collect. Along with the steel indrstrial structure adjustment of our country, the electric furnace smelting technology continuously developed such as extremely high power, enhance the smelt and hot metal charging etc., the requirment of environment protection is continuously improving. The situation of the electric furnace fume treatment gradually is getting strict day be day. It is important to develop a new technology of electric furnace fume treatment system.The original fume treatment system of steelmaking operation in Hengyang Steel Tube (Group )Co., Ltd(call the Hengsteel as follows) used "The exhaust cover + the fourth hole smoke discharge + the machine dint water cooler + separately the room is anti- to blow big calico sack in addition to the dust machine" method, change with the craft and the productivity raise, its electric furnace in addition to the dust system has already can't satisfy an environmental protection request.This thesis aims at checking the foundation of the related cultural heritage data, pass to make steel to the Hengsteel electric furnace in addition to the present condition of the dust system and the analysis of the existence problem, combine at home and abroad in addition to the dust technique system reformation experience, settle in the full argument foundation select in addition to the reformation project of the dust system: Cancel the electric furnace fourth bore smoke discharge method to change to use a day car pass type collections smoke spirit with big closeness cover; Adopt the half closeness cover useds for the refinement stove to accept a dust and increase to establish the anti-dewfall pulsed dust collector; to original in addition to the dust machine reformation become anti-dewfall pulsed dust collector. Carried on the related design calculation and equipments to choose a type in the meantime.Practice enunciation through the reformation engineering, the Hengsteel electric furnace in addition to the dust system improvement craft in addition to the dust efficiency attains an expectation target.The related research and engineering of this topic's practicing enunciation should in addition to the dust system technique reforms very successfully, obtaining the obvious economic performance,social performance and the environment performance, for the country inside the electric stove of the same kind business enterprise in addition to the dust system reformation provides better theories according to practice experience and engineering, have to draw lessons from a function very strongly.
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