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Waste gas processing device and waste gas processing method

An exhaust gas treatment device and exhaust gas treatment technology, applied in the field of pollutants, can solve the problems of general adaptability and treatment effect of VOC exhaust gas, failure to eliminate ozone, air pollution, etc., and achieve low investment and operation costs, easy operation, and improved efficiency.

Active Publication Date: 2015-12-09
邓杰帆
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, due to the influence of catalyst degradation efficiency, the application of photocatalytic oxidation method in industry has yet to be developed; while the ultraviolet photolysis equipment has no measures to eliminate the ozone generated by it, or does not make full use of the remaining ozone to decompose pollutants and directly discharge ,Air pollution
[0006] Various single purification technologies (equipment) and methods have average adaptability and treatment effects on various mixed VOC waste gases produced by different types of factories, and sometimes even have poor effects

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Such as figure 1 As shown, a waste gas treatment device includes an absorption tower 1, an ultraviolet oxidation device 3, a gas-liquid mixing device 5, a delivery device 6 and a release device 4 connected to the ultraviolet oxidation device 3, and the absorption tower 1 is sequentially arranged from bottom to top It is provided with a liquid setting part 11, an air inlet 12, an atomizing nozzle 13, a packing layer 14, a final nozzle 17 and a demister 16, and the atomizing nozzle 13 and the final nozzle 17 communicate with the liquid outlet of the delivery device 6, The liquid inlet of the gas-liquid mixing device 5 communicates with the liquid part 11, the liquid outlet of the gas-liquid mixing device 5 communicates with the ultraviolet oxidation device 3, and the gas outlet of the ultraviolet oxidation device 3 communicates with the liquid part 11. In communication, the ultraviolet oxidation device 3 is provided with an ultraviolet lamp group 31, and the packing layer...

Embodiment 2

[0074] Using the exhaust gas treatment device described in Example 1, the exhaust gas treatment method of the present embodiment is applied to the exhaust gas containing multi-component VOC in the spray paint manufacturing plant, including the following steps:

[0075] Step a), filling the liquid part 11 with absorbing liquid, starting the delivery device 6 and the final nozzle 17, and the final nozzle 17 sprays the oxidant;

[0076] Step b), after the final nozzle 17 sprays for 20 minutes, start the ultraviolet oxidation device 3 and the release device 4, the release device 4 transports air into the ultraviolet oxidation device 3, and the ultraviolet lamp group 31 in the ultraviolet oxidation device 3 radiates ultraviolet rays to convert the O in the air 2 Irradiation produces O 3 , and then release device 4 will generate O 3 Transport to the liquid part 11;

[0077]Step c), the air inlet 12 is opened, the waste gas is sent into the absorption tower 1 by the centrifugal fa...

Embodiment 3

[0090] Using the waste gas treatment device described in Example 1, the waste gas treatment method of this embodiment is applied to the treatment of multi-component VOC-containing paint spraying waste gas in plastic products factories, including the following steps:

[0091] Step a), filling the liquid part 11 with absorbing liquid, starting the delivery device 6 and the final nozzle 17, and the final nozzle 17 sprays the oxidant;

[0092] Step b), after the final nozzle 17 sprays for 17 minutes, start the ultraviolet oxidation device 3 and the release device 4, the release device 4 transports the air into the ultraviolet oxidation device 3, and the ultraviolet lamp group 31 radiates ultraviolet rays to remove the O in the air 2 Irradiation produces O 3 , and then release device 4 will generate O 3 Transport to the liquid part 11;

[0093] Step c), the air inlet 12 is opened, the waste gas is sent into the absorption tower 1 by the centrifugal fan after the pretreatment of p...

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Abstract

The invention relates to the technical field of waste gas processing, and specifically relates to a waste gas processing device and a waste gas processing method. The waste gas processing device comprises an absorbing tower, a gas-liquid mixing device, a delivering device, a UV oxidizing device, and a releasing device which is connected to the UV oxidizing device. The absorbing tower is provided with a liquid containing part, a gas inlet, a filling material layer, a final nozzle, and a demister from bottom to top in sequence. The final nozzle is communicated with the liquid outlet of the delivering device, the liquid inlet of the gas-liquid mixing device is communicated with the liquid containing part, the liquid outlet of the gas-liquid mixing device is communicated with the UV oxidizing device, and the gas outlet of the UV oxidizing device is communicated with the liquid containing part. The waste gas processing method utilizes the provided waste gas processing device. According to the processing method, the adsorption, catalytic oxidation, and spraying are effectively integrated together to strengthen the waste gas processing effect, moreover, different absorbing liquids that can effectively absorb the waste gas is provided according to the waste gas generated by different types of factories; the waste processing method is flexible and has a wide application range, furthermore, the purification efficiency is improved, the operation is simple and convenient, and the investment cost and operation cost are low.

Description

technical field [0001] The invention relates to the technical field of exhaust gas treatment, in particular to a method for simultaneously treating VOC and other pollutants by using adsorption, catalytic oxidation and spray absorption. Background technique [0002] In recent years, with the development of the economy, a large number of various chemical, coating, furniture, toys, electronics, spraying and other enterprises have emerged, coupled with insufficient investment in environmental protection, resulting in a large amount of industrial VOC (volatile organic compound) emissions. , leading to a decline in the quality of the atmospheric environment and serious harm to human health. For the treatment of VOC waste gas, activated carbon method, spray absorption method, photolysis method, etc. are widely used at present. However, the VOC exhaust gas purification device used generally has a single function and the effect is general, as follows: [0003] The conventional acti...

Claims

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Application Information

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IPC IPC(8): B01D53/02B01D53/86B01D53/18B01D53/44
Inventor 邓杰帆
Owner 邓杰帆
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