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An industrial aerosol pm2.5 ultra-clean discharge terminal process

An aerosol and industrial technology, applied in the field of industrial aerosol PM2.5 ultra-clean emission terminal technology, can solve the problems of increasing emission reduction costs and difficulty in popularization, and achieve the effect of solving pollution and low cost

Active Publication Date: 2021-12-14
河北烯电环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method of adding agglomerating agent not only increases the emission reduction cost of the enterprise, but also adds new pollutants for no reason, so it is difficult to promote

Method used

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  • An industrial aerosol pm2.5 ultra-clean discharge terminal process
  • An industrial aerosol pm2.5 ultra-clean discharge terminal process
  • An industrial aerosol pm2.5 ultra-clean discharge terminal process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] Embodiment 1 (comparative example, without spraying water):

[0063] The working condition smoke volume sent by desulfurization tower B is 4.22Wm 3 h -1 , after entering the spray conditioning device A, turn off the spray water of the small molecule water generating device C. The spray flow rate of spray water is 0m 3 h -1 . This kind of aerosol without the effect of spray water cannot be captured in the capture tower D, and the measured total content of aerosol particles at the flue gas discharge port is 3.8mg / m 3 , the temperature is 6 degrees Celsius, and the visual plume length is about 500 meters, which is non-ultra-low emission of aerosols. (Smoke plume: Long white smoke rising from the chimney.)

Embodiment 2

[0064] Embodiment 2 (comparative embodiment, common water spray):

[0065] The working condition smoke volume sent by desulfurization tower B is 4.22Wm 3 h -1 , after entering the spray conditioning device A, the small molecule water generating device C sprays ordinary water. The spray flow rate of ordinary water is 48m 3 h -1 to 50m 3 h -1 . The excess spray water accumulates at the bottom of the spray conditioning device (conditioning tower) A, and is reinjected into the small molecule water generating device C by the pump, and ordinary water is supplemented appropriately. This aerosol that cannot be adjusted and tempered cannot be captured in the aerosol capture device (capture tower) D, and the measured total content of aerosol particles at the discharge port is 3.7mg / m 3 , the temperature is 6 degrees Celsius, and the visual plume length is about 500 meters, which is non-ultra-low emission of aerosols.

Embodiment 3

[0066] Embodiment 3 (the embodiment of technology of the present invention, small molecule water spray):

[0067] The working condition smoke volume sent by desulfurization tower B is 4.22Wm 3 h -1 , after entering the spray conditioning device A, it is wetted by the small molecule water sprayed by the small molecule water generating device C. The spray flow rate of small molecule water is 48m 3 h -1 to 50m 3 h -1 . The excess spray water accumulates at the bottom of the spray conditioning device (conditioning tower) A, and is reinjected into the small molecule water generating device C by the pump, and the newly produced small molecule water is properly replenished. This conditioned aerosol is captured in the aerosol capture device (capture tower) D, and the total content of aerosol particles at the discharge outlet is 0.43mg / m 3 , the temperature is 6 degrees Celsius, and the smoke plume disappears immediately, which is the ultra-clean emission of aerosols.

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PUM

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Abstract

The invention relates to an industrial aerosol PM2.5 ultra-clean emission terminal process, which belongs to the field of air pollution control engineering. It is characterized by comprising the following steps: 1) preparing an industrial aerosol PM2.5 ultra-clean emission terminal treatment system; 2) the flue gas after desulfurization by the desulfurization tower enters the spray conditioning device through the pipeline, and after spraying, the small molecular water Infiltrate the aerosol particles in the flue gas sent by the desulfurization tower; the aerosol particles have conductivity after being infiltrated by small molecular water; 3) The aerosol gas after spraying and tempering by the spraying and tempering device enters the gas through the pipeline. In the aerosol capture device, the aerosol particles infiltrated by small molecular water are all charged, and the charged aerosol particles are subjected to the action of the electric field force, and gather on the dust collecting plate of the aerosol capture device for capture; 4) Captured by the aerosol After the device captures the aerosol particles, the gas is introduced into the chimney by the induced draft fan for discharge. The process has the characteristics of low cost, energy saving and high efficiency, and can reach the PM2.5 ultra-clean emission standard without generating smoke plumes.

Description

technical field [0001] The invention relates to an industrial aerosol PM2.5 ultra-clean discharge terminal process, which belongs to the field of air pollution control engineering. Background technique [0002] The essence of smoke plume is fog, and water vapor without condensation nuclei cannot form fog. [0003] If only water vapor is emitted without PM2.5 acting as condensation nuclei, the smoke plume will not be visible even in cold winter. The colorless and transparent water vapor dissolves into the air immediately after discharge, so the dewhitening is degassing sol. [0004] Why is it difficult to remove ultrafine particulate matter PM2.5 by traditional technology? [0005] The aerodynamic equivalent diameter of PM2.5 particles is small but the specific resistance is large, so they cannot be charged and captured in electrostatic precipitators. [0006] In order to capture flue gas aerosol, it is necessary to reduce the specific resistance of flue gas. [0007] For...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03C3/017B03C3/014
CPCB03C3/017B03C3/014Y02A50/2351
Inventor 邵建人印朝晖
Owner 河北烯电环境科技有限公司