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Filter screen used for preventing and controlling fog and haze

A filter and layer mesh technology, applied in the field of air purification, can solve problems such as depression, unfavorable children's growth, affecting reproductive ability, etc., and achieve the effect of protecting health

Inactive Publication Date: 2016-02-03
WUXI QIAOYANG MACHINERY MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] (4) Not conducive to children's growth
In addition, due to the weak light and the resulting low air pressure in foggy days, some people will experience laziness and depression in foggy days
[0016] (6) Affect reproductive ability
[0021] The filters in the prior art purify the air through filtration or adsorption, but nitrogen oxides or sulfur oxides in the air cannot be removed by filtration or adsorption

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The catalyst is prepared by an impregnation method, the carrier is a mixture of cerium oxide nanocubes and gibbsite, and its mixing mass ratio is 2:1;

[0044] The active component is a composite oxide of copper, zirconium, vanadium and tungsten, and its molar ratio is 1:1:1:1, and the weight content of the active component in the catalyst is 2%;

[0045]The co-catalyst is silver and anatase titanium dioxide, the molar ratio of Ag to Ti is 2:5, and the weight content of the co-catalyst in the catalyst is 1%.

[0046] Obtain activated carbon layer by simple mixing, described activated carbon layer comprises following composition:

[0047] A) 40% β-type iron silicate, the composition of the β-type iron silicate is as follows:

[0048] (x+y)M (2 / n) O·xFe 2 o 3 ·yAl 2 o 3 · zSiO 2 ·wH 2 o

[0049] In the formula, M represents Ce, n is the atomic valence of the cation M, x+y+z=1, z / x is 150, and w is 2;

[0050] B) 30% V doped with Ce 2 o 5 / (MoO 3 ) x (WO 3 )...

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PUM

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Abstract

The invention discloses a filter screen. The filter screen comprises a frame; at least 6 layers of a net structure are fixed in the frame; from inside to outside, a metal wire net support layer, a porous fibre layer, an active carbon layer, a catalyst layer, a porous fibre layer, and a metal wire net support layer are overlapped on the net structure successively; the catalyst later is composed of a powdery catalyst comprising a carrier, an active component, and a catalyst promoter. PM2.5 particles, nitrogen oxides, and oxysulfides contents are reduced to extremely low levels when fog and haze air is delivered through the filter screen; air in vehicles is purified effectively; and respiratory system health of people indoor is protected.

Description

technical field [0001] The invention relates to the field of air purification, in particular to a filter screen for preventing haze. Background technique [0002] Haze weather is a state of air pollution. Haze is a general expression of the excessive content of various suspended particulate matter in the atmosphere, especially PM2.5 (particulate matter with an aerodynamic equivalent diameter less than or equal to 2.5 microns) is considered to cause haze. The "culprit" of the weather. [0003] Fog is an aerosol system composed of a large number of tiny water droplets or ice crystals suspended in the air near the surface. It mostly occurs in autumn and winter, and is the product of condensation (or sublimation) of water vapor in the air near the surface. The existence of fog will reduce the transparency of the air and deteriorate the visibility. If the horizontal visibility of the target is reduced to within 1000 meters, the weather phenomenon of water vapor condensation (or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D46/00B01D46/12B01D46/30B01D53/86B01D53/60B01J23/68B60H3/06
CPCY02A50/20Y02A50/2351
Inventor 沈秋
Owner WUXI QIAOYANG MACHINERY MFG
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