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Paint mist waste gas treatment and solvent recovery system and control method

A technology of waste gas treatment and recovery system, applied in separation methods, gas treatment, chemical instruments and methods, etc., can solve problems such as hazardous waste, economic loss, environmental pollution, etc., and achieve the effect of reducing safety risks and reducing the concentration of oxygen content

Pending Publication Date: 2021-06-11
苏州东净环境科技有限公司
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Problems solved by technology

Activated carbon can only be treated as hazardous waste after adsorption saturation, causing great environmental pollution and economic losses

Method used

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  • Paint mist waste gas treatment and solvent recovery system and control method

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Embodiment Construction

[0028] In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the following The described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0029] Such as figure 1 As shown, a paint mist exhaust gas treatment and solvent recovery system, including junior high-efficiency three-stage filter, surface cooler 1, flame arrester, induced draft fan, adsorption carbon box A, adsorption carbon box B, purification carbon box C, nitrogen heating device, gas-gas heat exchanger, gas-liqui...

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Abstract

The invention discloses a paint mist waste gas treatment and solvent recovery system and a control method. The paint mist waste gas treatment and solvent recovery system comprises a gas inlet end filtering module, an adsorption carbon box A, an adsorption carbon box B, a purification carbon box C, a nitrogen heater, a gas-gas heat exchanger, a condensation separation module and a desorption fan. The system has the advantages that the adsorption effect of the adsorption carbon box A and the adsorption carbon box B is kept good after treatment of the air inlet end filtering module, and the purification efficiency can be kept at 98% or above for a long time; the purification carbon box C is merged into a desorption system by switching a system pipeline valve, so that residual VOCS in the adsorption carbon box A and the adsorption carbon box B can be adsorbed and desorbed, and the purpose of cleaning the carbon boxes is achieved; in addition, the whole system and pipelines are subjected to nitrogen purging replacement before desorption, so that the oxygen content concentration of the whole system is reduced, and the safety risk of the system is reduced; according to the structure, the water content in the system is not additionally increased by nitrogen desorption, and the water content in the solvent collected after desorption and condensation can meet the recovery requirement.

Description

technical field [0001] The invention relates to a paint mist waste gas treatment and solvent recovery system and a control method, belonging to the technical field of waste gas treatment. Background technique [0002] Existing spray paint mist exhaust gas treatment mostly uses activated carbon adsorption devices. Activated carbon can only be treated as hazardous waste after adsorption saturation, causing great environmental pollution and economic losses. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a paint mist waste gas treatment and solvent recovery system and control method, [0004] In order to solve the above technical problems, the present invention provides a paint mist waste gas treatment and solvent recovery system, including: [0005] Air inlet filter module, adsorption carbon box A, adsorption carbon box B, purification carbon box C, nitrogen heater, gas-g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/02
CPCB01D53/02B01D2253/102B01D2257/708B01D2259/4009
Inventor 于志海李锦兵胡茂华姚佳伟
Owner 苏州东净环境科技有限公司
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