Ultrafine particle deduster

A dust collector and particle technology, which is applied in the field of air pollution control and environmental protection equipment, can solve the problems of environmental pollution, small size and large number of particles, and achieve the effect of reducing the harm of pollution accidents.

Inactive Publication Date: 2010-03-10
HEFEI UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, because these electric bag composite dust collectors adopt a two-stage filtration method, the filtration efficiency for fine particles is limited, and part of the fine particles will escape through the filter bag. Although the mass ratio

Method used

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  • Ultrafine particle deduster
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Examples

Experimental program
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Embodiment

[0030] See figure 1 , The fine particle dust collector includes a smoke and dust inlet 1, an electrostatic dust removal mechanism, a filter bag dust removal mechanism, an induced draft fan 13 and a chimney 14 connected in sequence. A uniform flow plate 2 is provided in the smoke and dust inlet 1; a dust collecting plate 3 is evenly distributed in the electrostatic dust removal mechanism, and an electrostatic dust hopper 4 is arranged at the bottom; the filter bag dust removal mechanism includes uniformly arranged filter bags 5 and 5 The material is anode or cathode fiber. The top of the filter bag dust removal mechanism is equipped with a reverse pulse cleaning valve 6 and the bottom is equipped with an ash hopper 7; a turbulent vortex mechanism is set between the outlet of the filter bag dust removal mechanism and the inlet of the induced draft fan The turbulent vortex mechanism includes a turbulent vortex chamber, a smoke inlet pipe 8 and a smoke outlet pipe 12.

[0031] See f...

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PUM

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Abstract

The invention relates to an ultrafine particle deduster used for treating industrial fumes. Specifically, an electro-bag compound deduster of the second-grade filtration mode is improved, an onflow vortex mechanism is arranged between the outlet of a filter bag dedusting mechanism and the inlet of an induced draft fan, and the onflow vortex mechanism comprises an onflow vortex chamber, a fume inlet tube and a fume outlet tube; the onflow vortex chamber is in bucket shape of which the cross section is an inversed isosceles trapezoid, and the bottom of the onflow vortex chamber is connected withan ash bucket chamber. Secondary treatment fume which contains finer particulate matters enters the fume inlet tube; airflow downwards deflects after passing through an air deflector and enters the onflow vortex chamber, and finer particulate matters and the inner wall of the onflow vortex chamber diffuse and collide to accelerate ultrafine particles to precipitate, thus separating ultrafine particulate matters from fume. The filter efficiency of the ultrafine particle of the invention can reach above 99.99%; under the condition that the resistance of the deduster body is smaller than 1000Pa(other conditions are same), an anode or cathode fiber filter bag of which the mesh aperture is 5 mu m is used, and the outlet concentration of the deduster is smaller than 15mg/Nm<3>.

Description

Technical field [0001] The invention belongs to air pollution treatment and environmental protection equipment, and specifically relates to a dust collector equipment used for industrial smoke and dust treatment and capable of filtering fine particles with high efficiency. Background technique [0002] The smoke and dust emitted by metallurgical plants, chemical plants, cement plants, waste incineration plants, and electrolytic aluminum plants contain a large number of fine particles. When fine particles enter the human body, they can cause diseases such as bronchitis, cardiovascular disease, emphysema, and asthma. According to research: every 10μg / m increase in the concentration of fine particles 3 , The death rate of humans will increase by 15%, and the death rate of heart disease will increase by 8%-18%. The development of soot and dust removal technology is the direction of the development of circular economy. The collected fine particles can be used as raw materials for the ...

Claims

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Application Information

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IPC IPC(8): B01D50/00
Inventor 李保生朱长效卢荣胜沈章诚袁玉梅
Owner HEFEI UNIV OF TECH
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