Array electrostatic-atomization ultrafine particulate matter coalescence equipment and method

Abstract

The invention discloses array electrostatic-atomization ultrafine particulate matter coalescence equipment and an array electrostatic-atomization ultrafine particulate matter coalescence method. The array electrostatic-atomization ultrafine particulate matter coalescence equipment is characterized in that an array electrostatic-atomization device which comprises a liquid storage chamber, base plate electrodes, adjusting hole plates, insulating panels, metal plate grounding electrodes and a plurality of metal capillary tubes is arranged at the upper part of an electrostatic-atomization agglomeration chamber, wherein an agglomeration agent solution is stored in the liquid storage chamber, a base plate of the liquid storage chamber is formed by the base plate electrodes connected with a negative high voltage electrostatic generator, the adjusting hole plates are arranged right below the base plate electrodes, the insulating panels clinging to the outer wall of the top of the electrostatic-atomization agglomeration chamber are arranged right below the adjusting hole plates, and the metal plate grounding electrodes are arranged on the inner wall of the top of the electrostatic-atomization agglomeration chamber; each metal capillary tube stretches into the electrostatic-atomization agglomeration chamber from top to bottom; the top of the liquid storage chamber is connected with a stirring mixing chamber through a one-way valve, and the stirring mixing chamber is connected with an agglomeration agent storage tank and a water supply system through pipelines. According to the array electrostatic-atomization ultrafine particulate matter coalescence equipment, liquid containing an agglomeration agent is subjected to electrostatic atomization by virtue of a contact charging method, and the adsorption capacity of fog drops to ultrafine dust (such as PM2.5) is enhanced.

Description

technical field [0001] The invention relates to a treatment and purification technology for ultrafine dust (mainly referring to PM2.5, that is, dust with an equivalent particle size of less than 2.5 μm), specifically refers to the agglomeration or agglomeration of ultrafine particles (PM2.5) in flue gas It is an equipment and method for effectively removing particles with a larger particle size in an electrostatic precipitator or other traditional dust removal devices. Background technique [0002] While a large amount of thermal energy from fossil fuels is being used, the emission of particulate pollutants produced by their combustion has continuously deteriorated air quality, among which fine particulate matter accounts for more than 35% and is the main cause of smog. With the continuous improvement of soot emission standards for coal-fired power plants, the key to achieving this standard lies in the control of fine particulate matter. The efficiency of existing dust remo...

AI Technical Summary

Problems solved by technology

This equipment only handles part of the flue gas from coal-fired boilers, which can effectively improve the dust removal efficiency, but there is still a large amount of smoke entering the atmosphere with the exhaust, which cannot handle ultra-fine particulate matter (PM2.5), and the equipment has added a concentration separation device , which increases the resistance of the system of the device, increases the cost, makes the system more complex and the stability of the separation device is poor

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