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Method for composite adsorption microwave recovery or pyrolysis treatment of organic waste gas

A composite adsorption, organic waste gas technology, applied in gas treatment, filtration treatment, separation methods, etc., can solve the problems of downtime replacement, unsatisfactory practical application, and easily blocked filter belts.

Active Publication Date: 2019-02-15
义乌市爱釜义自动化科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the current water spray treatment of exhaust gas will have a negative impact on the subsequent main treatment process; the fixed filter belt is used for pretreatment, and the filter belt is easily blocked by dirt, which increases the resistance of the airflow in a short time, and must be stopped for replacement
[0007] In summary, in the prior art, various pretreatment technologies for exhaust gas have their own defects, and the practical application is not ideal. Therefore, it is necessary to develop a new pretreatment technology that can solve the above technical problems

Method used

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  • Method for composite adsorption microwave recovery or pyrolysis treatment of organic waste gas
  • Method for composite adsorption microwave recovery or pyrolysis treatment of organic waste gas
  • Method for composite adsorption microwave recovery or pyrolysis treatment of organic waste gas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0089] A device for compound adsorption microwave recovery or pyrolysis treatment of organic waste gas, including a pretreatment device and a plurality of parallel microwave treatment devices.

[0090] Such as Figure 1-4 As shown, the pretreatment device includes a feed pipe 1, a discharge pipe 2, a movable pipe 3, a filter belt 4 (glass fiber filter belt), a circulation transmission mechanism, and a cleaning mechanism; the outlet end of the feed pipe and the discharge pipe The inlet end is opposite to each other, and the movable pipe is arranged between the feed pipe and the discharge pipe.

[0091] The inlet end of the movable pipe is movably socketed with the outlet end of the feed pipe and the outlet end of the movable pipe is opposite to the inlet end of the discharge pipe. The edge of the outlet end of the movable pipe is provided with a pressing plate 5, and the movable pipe is driven by a supporting The mechanism (air cylinder) exerts an external force on the pressure ...

Embodiment 2

[0098] This embodiment adopts the pretreatment device of scheme two: as Figure 8-10 As shown, it includes a box body 1000, a rolling filter cartridge 1010 and a driving mechanism.

[0099] The box body is provided with an air inlet 1020 and an air outlet 1030; the rolling filter cartridge is provided with a filter cartridge support 1140. The rolling filter cartridge is horizontally arranged in the box body and its two ends are rotatably connected with the box body through bearings 1090 . The rotating surface of the rolling filter cartridge is the filtering surface (stainless steel mesh screen), and one of the end faces of the rolling filter cartridge is provided with an opening to seal and communicate with the air outlet (the opening and the air outlet are provided with a sealing ring 1130 (EVA sealing ring and O-shaped seal) lock up).

[0100] Described driving mechanism comprises motor 1100, motor pulley 1110, rolling pulley 1120 and belt; Described motor pulley is fixed ...

Embodiment 3

[0105] Example 3 (for low-concentration exhaust gas)

[0106] A method for composite adsorption microwave recovery or pyrolysis treatment of organic waste gas, comprising the following steps:

[0107] 1) Pretreatment: Pre-filter the exhaust gas with a pretreatment device (Example 1) to remove large particles of impurities and colloidal substances;

[0108] 2) Adsorption and enrichment: the pretreated exhaust gas is passed into the microwave treatment device, and the ceramic tube (80mm in diameter) filled with activated carbon layer (30mm) and zeolite layer (10mm) in the microwave treatment device is used to treat the waste gas. The organic pollutants and / or salts are adsorbed; the adsorption residence time is 2 seconds, when the adsorbent in the ceramic tube is nearly saturated and adsorbed, the exhaust gas is stopped, and the exhaust gas is switched to another parallel microwave treatment device to continue the adsorption, and so on;

[0109] 3) Evacuation: Evacuate the exha...

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Abstract

The invention relates to an environmental protection device, and discloses a method for composite adsorption microwave recovery or pyrolysis treatment of organic waste gas. Volatile organic pollutantsin the waste gas are adsorbed by a composite adsorbent loaded in a ceramic tube, so that the method is suitable for the treatment of both low-concentration large-volume organic waste gas and high-concentration organic waste gas. The low-concentration organic waste gas can be firstly adsorbed, enriched, then desorbed and pyrolyzed (or recovered); and the high-concentration organic waste gas can beadsorbed, desorbed and pyrolyzed simultaneously, in order to achieve the highest efficiency with the lowest energy consumption. Active carbon and zeolite are arranged at intervals, thereby avoiding the disadvantage that the radiation depth of microwave is affected by the fact that the single active carbon used at present absorbs the microwave, and improving the efficiency of the microwave.

Description

technical field [0001] The invention relates to the field of environmental protection equipment, in particular to a method for compound adsorption microwave recovery or pyrolysis treatment of organic waste gas. Background technique [0002] Waste gas pollution control is one of the main fields of environmental protection. Volatile organic pollutants (VOCS) are one of the main pollution factors that generate smog, which seriously affects human health and greatly affects people's quality of life. At present, the pollution of VOCS to the environment has been widely concerned. [0003] Currently used VOC treatment technologies such as direct combustion method are only suitable for high-concentration organic waste gas treatment; catalytic combustion method has potential safety hazards; RTO method equipment investment is too large; plasma technology not only has low treatment efficiency but also has potential safety hazards of explosion; ultraviolet light The processing efficienc...

Claims

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Application Information

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IPC IPC(8): B01D46/10B01D46/16B01D53/00B01D53/02C10B53/00C02F1/00C02F103/18
CPCB01D46/10B01D46/16B01D53/007B01D53/02B01D2253/102B01D2253/108B01D2259/40094B01D2259/806C02F1/001C02F2103/18C10B53/00
Inventor 陈德全董永明
Owner 义乌市爱釜义自动化科技有限公司
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