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Semi-wet static gas dedusting and purifying device

A gas dust removal and purification device technology, applied in electrostatic separation, chemistry, heating methods, etc., can solve the problems of increasing indoor particle concentration, noise, excessive humidification of indoor air, etc., to reduce the risk of influenza infection, efficient capture, gas small resistance effect

Active Publication Date: 2014-06-25
INST OF PROCESS ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is very similar to the process of rainfall and haze elimination in the natural atmosphere, but its disadvantages are also very obvious: first, this method needs to use nozzles, liquid or gas with a certain pressure, which will bring additional equipment investment and bring Second, this method will cause the problem of "over-humidification" of the indoor air, which will make people feel uncomfortable in the rainy season with high humidity; third, the washing water used for spraying is often ordinary tap water, which is not suitable for For water containing more minerals, the spray will force the water to evaporate, causing the minerals in the water to become dust particles in the air, increasing the concentration of indoor particles

Method used

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  • Semi-wet static gas dedusting and purifying device
  • Semi-wet static gas dedusting and purifying device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Take 10 pieces of aluminum discs with a diameter of 20cm as dust collectors, fix them on a transmission shaft, the diameter of the transmission shaft is 1cm, and the distance between each disc is 2cm, and set 9 metal wires with a diameter of 0.2mm as corona electrodes. Between the dust collectors, the wire direction of the corona electrode is parallel to the direction of the dust collector disk, and the distance from the dust collector disks on both sides is equal. The corona electrode is connected to the positive pole of the high voltage power supply, and the dust collector is connected to the high voltage The negative pole of the power supply and the negative pole of the high-voltage power supply are well grounded. The output voltage is 20kV. The lower half of the dust collector is immersed in the liquid surface of the water tank. The solution in the water tank is 1% benzalkonium bromide solution. A gas flow box is arranged on the upper part of the water tank, and the ...

Embodiment 2

[0023] Take 20 pieces of stainless steel discs with a diameter of 10cm as dust collectors, fix them on a transmission shaft, the diameter of the transmission shaft is 1cm, and the distance between each disc is 0.8cm, and 19 metal wires with a diameter of 0.2mm are set as corona electrodes. Between the dust collectors, the wire direction of the corona electrode is parallel to the direction of the dust collector disk, and the distance from the dust collector disks on both sides is equal. The corona electrode is connected to the negative pole of the high voltage power supply, and the dust collector is connected to the high voltage The positive pole of the power supply, the positive pole of the high-voltage power supply is well grounded, the output voltage is 30kV, the lower half of the dust collector is immersed in the liquid surface of the water tank, the solution in the water tank is 1% sodium pyrithione solution, and the liquid surface is 5mm away from the edge of the transmissi...

Embodiment 3

[0025] Take 8 pieces of aluminum discs with a diameter of 5cm as dust collectors, fix them on a transmission shaft, the diameter of the transmission shaft is 8mm, and the distance between each disc is 1cm, and set 19 metal wires with a diameter of 0.2mm as corona electrodes. Between the dust collectors, the wire direction of the corona electrode is parallel to the direction of the dust collector disk, and the distance from the dust collector disks on both sides is equal. The corona electrode is connected to the positive pole of the high voltage power supply, and the dust collector is connected to the high voltage The negative pole of the power supply, the negative pole of the high-voltage power supply is well grounded, the output voltage is 18kV, the lower half of the dust collector is immersed in the liquid surface of the water tank, the solution in the water tank is 1% potassium sorbate solution, and the liquid surface is 5mm away from the edge of the transmission shaft. A ga...

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Abstract

The invention relates to a semi-wet static gas dedusting and purifying device and belongs to the technical fields of dedusting, waste gas treatment and environmental protection. According to the device, dust in gas flow is electrically charged by adopting corona electrodes parallel to the gas flow direction; the corona electrodes are respectively arranged between disk-type dust collecting poles; disks of the disk-type dust collecting poles are parallel to the gas flow direction and are continuously rotated under the action of a transmission shaft; the lower half parts of the disks are immersed in a water solution, liquid films are continuously produced on the disks along with the rotation; therefore, the capturing efficiency of PM2.5 (Particulate Matter2.5), even the particulate matter with the size below 2.5 is remarkably increased and the semi-wet static gas dedusting device is very suitable for indoor air purification.

Description

technical field [0001] The invention relates to a dust-containing gas purification device using a wet electrostatic method, and belongs to the technical fields of electric dust removal, waste gas treatment and environmental protection. Background technique [0002] With the rapid development of my country's economy, the haze air pollution in large and medium-sized cities, economically developed areas and areas with intensive basic industries in my country is becoming more and more serious. As my country's restrictions on SOx and NOx emissions become increasingly strict, and related environmental protection technologies and devices continue to be put into use, the increase in the total emission of SOx and NOx pollutants in my country's atmospheric environment has slowed down. However, from the current monitoring results, my country's long-term The smog pollution in the Delta, Pearl River Delta, and Beijing-Tianjin-Hebei areas has become increasingly serious, which has seriousl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03C3/53B01D47/02A61L2/18F24F1/02
Inventor 刘海弟李伟曼李文辉陈运法
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI
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