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A device and method for coupling Taylor vortex and chemical agglomeration to absorb and filter PM2.5

A chemical agglomeration and filtration device technology, applied in chemical instruments and methods, combined devices, separation methods, etc., can solve the problems of poor agglomeration effect of PM2.5, achieve good practicability and operability, improve removal rate, prolong The effect of collision contact time

Active Publication Date: 2022-03-15
THE UNIV OF NOTTINGHAM NINGBO CHINA
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Problems solved by technology

However, the single chemical agglomeration technology has a poor effect on PM2.5 agglomeration, and it is difficult to fully agglomerate fine particles so that the diameter reaches 5 μm and is intercepted by filter cotton. Therefore, we propose a device that couples Taylor vortex and chemical agglomeration to absorb and filter PM2.5 and method

Method used

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  • A device and method for coupling Taylor vortex and chemical agglomeration to absorb and filter PM2.5
  • A device and method for coupling Taylor vortex and chemical agglomeration to absorb and filter PM2.5
  • A device and method for coupling Taylor vortex and chemical agglomeration to absorb and filter PM2.5

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Embodiment Construction

[0028] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0029] refer to figure 1 As shown, a device and method for coupling Taylor vortex and chemical agglomeration to absorb and filter PM2.5, including blower 1, Taylor Coote flow device 3, air compressor 7, metering pump 8, agglomerating agent solution preparation tank 9 and filter device 10, wherein,

[0030] The agglomerating agent solution preparation tank 9, the metering pump 8, the air compressor 7, and the atomizing nozzle 5 installed on the inner top surface of the Taylor Coote flow device 3 are connected in series through pipelines successively, and the blower 1 is connected with the Taylor Coote flow device 3 The bottoms are communicated with each other by setting the gas distribution pipeline 2, and the bottom of the Taylor Coote flow devic...

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Abstract

The invention discloses a device and method for absorbing and filtering PM2.5 coupled with Taylor vortex and chemical agglomeration. The atomizing nozzle mixes the PM2.5 particles inside the flue gas with the agglomerating agent solution; finally, it is filtered by the filter device and sent to the agglomerating agent solution preparation tank for later use. A device and method for absorbing and filtering PM2.5 by coupling Taylor vortex and chemical agglomeration according to the present invention utilizes the principle of Taylor vortex to generate circular vortices alternately positive and negative and arranged in an orderly manner, providing PM2.5 particles and agglomerating agents The large specific surface contact area promotes the collision contact between PM2.5 particles and the agglomerating agent, increases the collision frequency between the agglomerating agent and the dusty smoke, and the layered annular vortex prolongs the contact residence time and increases the probability of particles being captured. It further promotes the aggregation and growth of PM2.5, and finally the agglomerated and grown particles are removed by coarse-effect filter cotton, and the agglomerating agent circulates into the spray system.

Description

technical field [0001] The invention relates to the field of emission control of fine particles in flue gas of fossil fuel combustion, in particular to a device and method for coupling Taylor vortex and chemical agglomeration to absorb and filter PM2.5. Background technique [0002] my country's air pollution has changed from traditional bituminous coal-type pollution to trans-regional and composite pollution mainly based on PM2.5. Fine particles (PM2.5) refer to solid particles or liquid droplets with an aerodynamic diameter of ≤2.5 μm, also known as particulate matter that can enter the lungs. The size of particulate matter produced in industrial production can range from submicron-sized molecules to millimeter-sized coarse particles. The mass fraction of PM2.5 is not large, but the quantity ratio can account for more than 90% of the total number of particles. Due to the small particle size of fine particles, it is difficult for traditional conventional dust removal equip...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D50/40B01D47/06
CPCB01D47/06B01D50/40
Inventor 李光何俊王璐璐杨晓钢
Owner THE UNIV OF NOTTINGHAM NINGBO CHINA
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