Adhesive flume absorbable grain purification method and its device
A particle and adhesion technology, applied in chemical instruments and methods, separation methods, dispersed particle filtration, etc., can solve problems such as the removal of non-inhalable particles, improve effective utilization, improve removal efficiency, and save operation. cost effect
Active Publication Date: 2008-12-10
TSINGHUA UNIV +1
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Problems solved by technology
In the prior art, a certain amount of inhalant is sprayed into the bag filter by using a powder spraying device. The selected powder can only protect the dust collector against the cohesive dust, and cannot remove the primary particles, secondary Precursors of particulate matter and inhalable particulate matter for effective removal
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[0025] Referring to the accompanying drawings, the device of the present invention includes a circulating powder bin 1, a soot blowing valve 2, an iron fly ash feeder 4, a bag filter 5 and an ash conveying fan 8. The lower ash bin 7 of the bag filter 5 is connected to the inlet of the ash conveying fan 8 through a pipeline, the outlet of the ash conveying fan 8 is connected to the inlet of the circulating powder bin 1, and the outlet of the circulating powder bin 1 is connected to the blowing fan 8. Ash valve 2 is connected. The soot blowing valve 2 is placed at the port of the flue inlet section 3 of the bag filter 5 , and the iron fly ash feeder 4 is arranged on the flue inlet section 3 . The upper side of the bag filter 5 is provided with a flue outlet 9, and a filter material layer 6 using a film-coated filter material is arranged inside it.
[0026] The use step of device of the present invention is:
[0027] ①Spray a certain amount of adsorbent powder into the bag filt...
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The invention discloses a method and a device for purifying inhalable particles of adhesive fume, and relates to the technical field of fume purification and dust removal. The device of the invention includes a circulating powder bin, a soot blowing valve, an iron fly ash feeder, a bag type dust collector and a dust conveying fan. Its structural feature is that the lower ash bin of the bag filter is connected to the inlet of the ash conveying fan through a pipeline. The outlet of the dust conveying fan is connected to the inlet of the circulating powder bin, and the outlet of the circulating powder bin is connected to the soot blowing valve. The soot blowing valve is placed at the port of the flue inlet section of the bag filter, and the iron fly ash feeder is arranged on the flue inlet section. There is a flue outlet on the upper side of the bag filter, and a filter material layer is built in the bag filter. The method of the invention can improve the dust removal efficiency and absorb the cohesive dust while protecting the dust remover, and has synergistic removal effect on various primary particles and precursors of secondary pollutants. The device for realizing the method has the advantages of simple structure, convenient operation, safe and reliable operation.
Description
technical field [0001] The invention relates to the technical field of flue gas purification and dust removal, in particular to a method and a device for purifying inhalable particles of adhesive flue gas. Background technique [0002] The flue gas emitted during industrial production contains a large amount of harmful gases, especially the flue gas produced by combustion not only contains a large amount of primary particulate matter, but also contains SO 2 , NO X The precursors of secondary pollutants such as organic pollutants, heavy metals and polycyclic aromatic hydrocarbons are also discharged into the atmosphere in large quantities with the flue gas, and the control of inhalable particulate matter PM10 and PM2.5 has gradually attracted more and more attention. With the introduction of human beings to control more harmful components in the ambient atmosphere, it is imperative to propose a comprehensive and balanced solution to air pollution control. [0003] The flue ...
Claims
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IPC IPC(8): B01D53/81B01D46/02
Inventor 赵旭东姚强项光明韩毅
Owner TSINGHUA UNIV