A bipolar atomization pre-charged fine particle agglomeration device

A technology of fine particles and charging devices, applied in electrostatic effect separation, chemical instruments and methods, solid separation, etc., can solve the problems of limited coagulation ability of fine particles, achieve poor results, improve agglomeration effect, and improve retention the effect of time

Active Publication Date: 2021-01-19
XI AN JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The device directly charges the particles, and due to the charging mechanism, the ability to coagulate fine particles is limited

Method used

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  • A bipolar atomization pre-charged fine particle agglomeration device
  • A bipolar atomization pre-charged fine particle agglomeration device
  • A bipolar atomization pre-charged fine particle agglomeration device

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Embodiment Construction

[0040] The present invention will be described in further detail below in conjunction with accompanying drawing, and its content is explanation of the present invention rather than limitation:

[0041] Such as figure 1 , figure 2 , is a bipolar atomization pre-charged fine particle agglomeration device of the present invention, including a device housing 2, and the device housing 2 is sequentially provided with a gradually expanding inlet 1, a charged water mist retention section, a turbulent flow The agglomeration section and the tapered outlet 3 are connected with a vacuum pump inside the device housing 2 to maintain negative pressure inside the device housing 2 . The ultrasonic atomizer 4 preferably adopts a double-tube atomizer. The diameter of the atomized liquid droplets produced by the ultrasonic atomizer 4 is 1-5 μm, and the temperature of the atomized liquid droplets is much lower than the temperature of the flue gas. Just water.

[0042]The two sides of the charg...

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Abstract

The present invention discloses a two-stage atomization pre-charging fine particulate matter aggregation apparatus, and belongs to the technical field of industrial smoke and dust particulate matter discharge control. Fine particles in flue gas pass through an ultrasonic nebulizer, to generate atomized droplets, so that adhesion characteristics of the fine particles are improved. In addition, theatomized droplets carry positive and negative charges, so that an aggregation effect between particles is significantly improved, thereby resolving a problem of a poor direct charging effect of the fine particles. When particles pass through gas duct pin fins after collision, adhesion and aggregation, collision aggregation between the particles is further intensified under a turbulence effect. According to the apparatus, a structural design is reasonable, an atomization adsorption technology, an electric aggregation technology, and a turbulence aggregation technology are combined, and an aggregation effect of fine particles in flue gas is enhanced by using charged fog through multiple coupling synergies, thereby improving removal efficiency of fine particulate matters, and reducing fine particulate matter discharge in the flue gas.

Description

technical field [0001] The invention belongs to the technical field of emission control of industrial smoke and dust particles, and in particular relates to a bipolar atomization pre-charged fine particle agglomeration device. Background technique [0002] Fine particulate matter is the main cause of haze weather. In recent years, fine particulate matter pollution has become a key issue of social concern, especially particles with a kinetic equivalent diameter of less than 2.5 μm (PM2.5), which can be suspended in the air for a long time and Long-distance transportation, and because of its small particle size and large specific surface area, it is easy to directly or indirectly absorb heavy metals and other toxic substances in the air, enter the human body, and cause respiratory diseases to humans. At present, the dust removal equipment commonly used in power plants includes electrostatic dust removal devices, bag dust removal devices, wet dust removal devices, and tradition...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03C3/014
CPCB03C3/014
Inventor 杨富鑫李正鸿刘鹤欣谭厚章
Owner XI AN JIAOTONG UNIV
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