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Device for removing fine particles by combining sound wave agglomeration and conventional dedusting

A fine particle, conventional technology, applied in the field of fine particle removal device, can solve the problem of low removal efficiency of fine particle

Inactive Publication Date: 2014-04-23
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional flue gas treatment devices include mechanical dust collectors, wet dust collectors, electrostatic precipitators, and bag filters, all of which can effectively remove coarse mode particles, but for fine particulate matter (PM 2.5 ) has a low removal efficiency

Method used

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  • Device for removing fine particles by combining sound wave agglomeration and conventional dedusting
  • Device for removing fine particles by combining sound wave agglomeration and conventional dedusting
  • Device for removing fine particles by combining sound wave agglomeration and conventional dedusting

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] like figure 1 Shown is a sonic coagulation-conventional dedusting composite device for removing fine particles, including a cuboid flue gas pipe 1 , a sound source 2 and a conventional dust collector 3 .

[0023] The flue gas pipe 1 is placed vertically, and the flue gas flows from top to bottom in the flue gas pipe 1. The cross section of the flue gas pipe 1 is a square, and the side length of the square satisfies that the sound wave of the sound source 2 is formed in the cross section. Standing wave sound field:

[0024] f n = nc 2 L x

[0025] Among them, f n is the frequency used by the sound source 2, n=1,2,3,... is the resonance order, c is the local speed of sound, L x is the side length of the square...

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Abstract

The invention discloses a device for removing fine particles by combining sound wave agglomeration and conventional dedusting. The device mainly comprises a smoke pipeline, sound sources and a conventional deduster, wherein the acoustic agglomeration and the conventional dedusting technology are combined to agglomerate and remove fine inhalable particles in smoke; and the device has a specific structure that line sound sources and area sound sources are arranged around or adjacent to two faces of the smoke pipeline, the length of a sound source covering face along a smoke flowing direction is bound to meet the condition that the smoke moves for 2-5s in a sound field, and the tail of the smoke pipeline is provided with the conventional deduster. The smoke flows through the smoke pipeline provided with the sound sources, the fine inhalable particles in the smoke are in the sound field, various mechanisms of sound agglomeration promote small particles to be adsorbed to large particles or promote the small particles to be agglomerated into large particles, and then, the fine inhalable particles can be effectively removed through the conventional deduster.

Description

technical field [0001] The invention relates to a sonic coagulation-conventional dedusting composite device for removing fine particles, which combines sonic coagulation technology with conventional dedusting technology to remove fine particles (PM 2.5 ). Background technique [0002] Fine particulate matter (PM 2.5 ) refers to inhalable fine particles with an aerodynamic diameter less than or equal to 2.5 μm, which are mainly produced in high-temperature combustion processes in industries such as transportation, manufacturing, and energy. With the development of economy and society and the improvement of industrialization, the content of respirable fine particles in the air is also getting higher and higher. On the other hand, respirable fine particulate matter (PM 2.5 ) Because of its large specific surface area, it is easy to enrich the toxic heavy metals, acid oxides, organic pollutants, bacteria and viruses in the air, which seriously endangers people's health. Ther...

Claims

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Application Information

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IPC IPC(8): B01D51/08B03C3/016
Inventor 姚海涛董卫杨良华程梅
Owner SOUTHEAST UNIV
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