Abstract Dry dust removal technology has the advantages of high dust removal efficiency. In fact, it has the advantages of simple operation, convenient management, small floor space and difficult corrosion of equipment. However, the dry dust removal technology will bring problems such as excessive temperature of the bag and the flue gas, affecting the dry dust removal technology in the dust removal of the electric arc furnace...
The dry dust removal technology has the advantages of high dust removal efficiency, and in fact, it has the advantages of simple operation, convenient management, small floor space and corrosion resistance of equipment. However, the dry dust removal technology will bring problems such as excessive temperature of the bag and the flue gas, and affect the application of the dry dust removal technology in the dust removal of the electric arc furnace. The viscous bag is caused by unreasonable selection of filter media and filter wind speed parameters.
The temperature of the flue gas is too high to be solved by a high temperature resistant filter material and a wild wind method. The wet dust removal technology also has high dust collection efficiency. The high temperature flue gas cooling can be solved in the water film, and the problem of excessive temperature of the sticky bag and the flue gas caused by the dry dust removal in the electric arc furnace dust removal can be avoided.
However, the wet dust removal mud treatment is difficult, which is easy to cause secondary pollution and because the washing water is acidic, the equipment is corroded greatly; the mud is easy to stick to the fan blades, affecting the dynamic balance of the induced draft fan; the operation management is cumbersome and complicated, and the sedimentation is required regularly. The pool is cleaned, the power consumption is large, and the running cost is high.
When using wet dust removal technology in high temperature soot, environmental technicians should decide whether to use wet dust removal technology according to the geographical conditions of the factory, climatic conditions, water hardness and other objective conditions. Under normal circumstances, the southern region has a warm climate, and it is not easy to freeze in winter. The surface water is more used, and the water hardness is not high. Wet dust removal technology can be used.
In the northern region, the winter climate is cold, and the circulating water is easy to freeze, which affects the normal operation of the equipment. In addition, the groundwater is more used, the water quality is high, and the scale is easy to foul, which causes the nozzle of the wet venturi dust collector to clog and the water pipe to be blocked. Therefore, in the northern region, dry dust removal technology should be the first choice in high temperature dust removal. (Source: Zhengzhou Jinhao Technology Development Co., Ltd.)
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