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A device and method for collecting heteropolar charged mist droplets and removing dust

A dust removal device and a technology of opposite polarity, which is applied in the field of removing fine dust in flue gas, especially PM2.5 devices, can solve the problems of complicated system cleaning, hidden safety hazards and complexity of high-voltage electrostatic generators, and improve the dust removal efficiency. The effect of removing efficiency, avoiding rapid evaporation, and increasing the size of droplets

Inactive Publication Date: 2017-10-20
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the interior of the device box is extremely complicated, and the internal high-voltage electrostatic generator will have certain safety hazards, and it will be more complicated to clean up the interior of the system later

Method used

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  • A device and method for collecting heteropolar charged mist droplets and removing dust
  • A device and method for collecting heteropolar charged mist droplets and removing dust

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Embodiment Construction

[0022] see figure 1 , a heteropolar charged mist collection and flue gas dedusting device of the present invention has a cylinder 23, the upper end of the cylinder 23 is closed, the lower end is connected to the waste liquid collection box 10, and the waste liquid collection box 10 is connected to the inside of the cylinder body 23 connected. Cylinder body 23 is provided with two filter screens 2, 19 located on the left and right sides at the same height, and there is a certain distance between the two filter screens 2, 19, which is a porous ball filter layer 8 and a gravel filter layer 9. , The porous ball filter layer 8 and the gravel filter layer 9 are closely stacked up and down, and the gravel filter layer 9 is stacked below the porous ball filter layer 8 . Like this, two filter screens 2,19, porous ball filter layer 8 and sand gravel filter layer 9 are divided into upper, middle and lower three chambers inside cylinder body 23. Two air inlet passages arranged symmetric...

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Abstract

The invention discloses a heteropolar electric charge fogdrop coalescence dust-removing device capable of removing tiny dust, especially, PM2.5, in smoke, and a method thereof. Two draught fans are respectively used for feeding dust-containing gas into an upper chamber; dust-containing gas dust and dust-containing gas flow enter into two pre-processing chambers and then downward pass through two filter screens, respectively; the filtered dust and gas flow downward enter into a negative electrostatic atomization area and a positive electrostatic atomization area, respectively; two capillary atomizing nozzles can form stable conical jet flow atomization in the negative electrostatic atomization area and the positive electrostatic atomization area under the actions of a negative corona discharge electrode and a positive corona discharge electrode correspondingly and can generate two heteropolar fogdrops or fogdrop groups in the negative electrostatic atomization area and the positive electrostatic atomization area so as to absorb tiny dust of the dust-containing gas; therefore, the efficiency of removing tiny dust is increased. The fogdrops absorbing dust can finish coalescence, so that the fogdrop scale is increased, the sedimentation of the fogdrops is facilitated, and the effective removal of ultra tiny particulate matter is realized.

Description

technical field [0001] The invention relates to a dust removal device, in particular to a device for removing fine dust in flue gas, especially PM2.5. Background technique [0002] Haze is a state of air pollution, and it is an overall expression of the excessive content of various suspended particulate matter in the atmosphere, especially PM2. Prime culprit". Smog is mainly composed of sulfur dioxide, nitrogen oxides and inhalable particles, which are combined with fog, which is not only a kind of pollutant, but also a carrier of toxic substances such as heavy metals and polycyclic aromatic hydrocarbons. [0003] At present, there are many ways to effectively remove dust, and more than 99% of particulate matter can be removed, but there are still some difficulties in the removal of PM2.5. At present, there are mainly the following methods for the removal of fine particles in smoke and dust: (1) Electrostatic dust removal. Commonly used is the electrostatic precipitator, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D50/00
CPCB01D50/00
Inventor 王贞涛夏磊朱忠辉郭天宇
Owner JIANGSU UNIV
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