Method for processing tail gas and dust generated by producing trichlorosilane
A technology of trichlorosilane and treatment method, applied in separation methods, chemical instruments and methods, dispersed particle separation, etc., can solve problems such as air pollution and large porosity, and achieve water saving, high work efficiency, and nitrogen consumption. Effect
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Embodiment 1
[0043] The treatment method of tail gas dust in the production process of trichlorosilane, the tail gas and dust in the production process of trichlorosilane first pass through the cyclone separator, and the tail gas dust separated by the cyclone separator is first collected by the filter device to obtain dust, and the dust passes through two Step bag filter treatment, in the bag filter, a cloth bag blowpipe is set to blow out nitrogen, and the cloth bag blowpipe is installed on the main pipe by the main pipe arranged at the bottom of the filter and parallel to the filter bag and the filter bag. The branch pipe between the pipes and the nozzles arranged on the branch pipes; the branch pipes are distributed in the gaps between all the filter bags, so that all the bags can be blown by the branch pipes, and the height of the branch pipes is 1 / 2 from the bottom to the top of the bag. Four nozzles are evenly arranged vertically on the branch pipe, the time for blowing nitrogen is 1-...
Embodiment 2
[0047] The treatment method of tail gas dust in the production process of trichlorosilane, the tail gas dust in the production process of trichlorosilane first passes through the cyclone separator, the tail gas dust separated by the cyclone separator is first collected by the filter device to obtain dust, and the dust passes through the two-step bag In the two bag filters, there are cloth bag blowpipes, and the bag blowpipes blow out nitrogen to blow off the dust deposited on the bags. The main pipe is parallel to the branch pipe between the filter bags and the nozzles arranged on the branch pipe; the branch pipe is distributed in the gap between all the filter bags, so that all the cloth bags can be blown by the branch pipe, and the height of the branch pipe is At the upper 1 / 3 from the bottom to the top of the cloth bag, 5 nozzles are arranged vertically and evenly on the branch pipe, the time for nitrogen blowing is 1 second, the frequency of nitrogen blowing is 60 times / hou...
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