Demisting device for cooling haze and removing dust

A technology of demisting device and demister, which is applied in the direction of combined device, steam/steam condenser, auxiliary pretreatment, etc., and can solve the problems of high cost and unsatisfactory ultra-clean technology

Pending Publication Date: 2017-07-25
孙厚杰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Currently popular ultra-clean technologies are relatively expensive, and some of them are not satisfactory, which makes enterprises sigh at the sight of smog and stop walking, which is a dilemma.

Method used

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  • Demisting device for cooling haze and removing dust
  • Demisting device for cooling haze and removing dust
  • Demisting device for cooling haze and removing dust

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0040] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0041] The principle of fine dust

[0042] At present, the main problem of ultra-clean emission is the removal of fine dust. After wet spraying, dust with a particle size of 0-15 μm can be 100% carried by the flue gas. 50% of the dust with a particle size of 250 µm can be carried by the flue gas, while the dust with a particle size of more than 500 µm is hardly carried by the flue gas. The main reason is the surface tension phenomenon of liquid droplets (water droplets). The surface tension of liquids is different, and some are very large, such as the surface tension of mercury, and the surface tension of water is also very large, such as capillary effect, steel needles can float on On the surface of the water, some aquatic insects do not live underwater but on the water, walking like flying, such as water striders, etc. Some small land insects such as spiders can w...

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PUM

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Abstract

The invention relates to a demisting device for cooling haze and removing dust. The demisting device comprises demisters, such as, a haze cooler / condenser, a backflow plate, a big bent plate / big wave plate, a flow mixing plate and an ultra dazzle plate, wherein the haze cooler utilizes a refrigerating system with a shell / chamber type tunnel to condense the dust into fog, haze, or a cooling system, such as, use, air and boiler airing, is used as a first-level tubular demister, so that most dust and fog drop can be effectively removed; the demisters, such as, the backflow plate, can further gather, centrifuge at ultrahigh speed and remove the haze formed by the condenser; the professional instruments, such as, a liquid collecting wall and a drainage ditch, can realize the systematizing and streamlining of the demisting haze-removing operation and can eliminate the dust carrying; the dust emission is below 5mg / Nm<3> and the water mist is below 10mg / Nm<3>; the multi-level haze cooler is arranged for realizing zero emission at the rate of feeding dust of 30mg / Nm<3> and ultra-clean emission at the rate of 30-60mg / Nm<3>; and the device can simultaneously and efficiently remove SO3 aerosol and heavy metals, such as, Hg0 particles.

Description

technical field [0001] The invention relates to a flue gas dedusting and mist removal device, in particular to a cold haze (condensation) dust and mist removal device, which is mainly used in various flue gas dust removal, fog removal and environmental protection fields, especially wet flue gas and saturated wet flue gas dust removal In the field of demisting, such as desulfurization, denitrification spray absorption tower, bubble tower, various washing towers, etc.; it can also be applied to dust removal and demisting of various gases in other industries, including the removal of various steam and liquid droplets, and various Separation of various gases from various liquid or solid particles (aerosols), various liquid or solid vapors. Background technique [0002] In view of the needs of the country's economic development and the progress of human civilization, environmental protection technology must go first. Without environmental protection, there will be no development....

Claims

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Application Information

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IPC IPC(8): B01D50/00B01D51/02B01D53/00B01D53/26F28B7/00
CPCB01D50/00B01D51/02B01D53/002B01D53/26F28B7/00B01D2257/602B01D2257/302B01D2258/0283B01D50/40
Inventor 孙厚杰
Owner 孙厚杰
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