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Recycling device for exhaust gas of painted organic solvent and method for recycling organic solvent

A technology for recovering organic solvents and waste gas, which is applied in combined devices, separation methods, chemical instruments and methods, etc., can solve the problems of premature failure of activated carbon, replacement of filter cotton, low demisting efficiency, etc., and achieve long adsorption time and extended use The effect of short life and desorption regeneration time

Inactive Publication Date: 2012-03-28
中科天龙(厦门)环保股份有限公司
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides an organic solvent exhaust gas recovery device, the purpose of which is to overcome the low efficiency of demisting, premature failure of activated carbon and the need for frequent replacement in the prior art Defects such as filter cotton

Method used

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  • Recycling device for exhaust gas of painted organic solvent and method for recycling organic solvent
  • Recycling device for exhaust gas of painted organic solvent and method for recycling organic solvent

Examples

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Embodiment Construction

[0019] Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

[0020] refer to figure 1 , spray paint organic solvent exhaust gas recovery device, including gas collection tank 1, cyclone dust collector 2, bag filter 3, high-pressure centrifugal fan 4, two adsorption tanks 51, 52, condenser 6 and oil-water separator 7 connected in sequence, it It also includes a set of automatic control system (not shown in the figure) for regulating the above-mentioned components. The inlet of the gas collecting tank 1 is connected to the organic solvent waste gas pipe of the paint room (not shown in the figure), the outlet of the gas collecting tank 1 is connected to the inlet of the cyclone dust collector 2; the outlet of the cyclone dust collector 2 is connected to the outlet of the bag filter 3 The inlet is connected; the outlet of the bag filter 3 is connected to the inlet of the high-pressure centrifugal fan 4; the outlet of ...

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Abstract

The invention discloses a recycling device for an exhaust gas of a painted organic solvent. The recycling device comprises a painting fog removing device, a fan, an absorbing jar, a condenser and an oil-water separator which are connected in turn, wherein the painting fog removing device comprises a gas collecting tank, a cyclone dust collector and a bag type dust collector; the gas collecting tank is used for temporarily storing the exhaust gas of the organic solvent; and the gas collecting tank, the cyclone dust collector and the bag type dust collector are connected in turn. All componentsof the recycling device are reasonably and compactly jointed; collection efficiency is high; and the painting fog is efficiently removed while a trouble in frequently exchanging filter cotton is avoided. The invention also discloses a method for utilizing the recycling device for the exhaust gas of the painted organic solvent to recycle the organic solvent. The method comprises the following steps: removing the painting fog; absorbing; desorbing steam; condensing; and separating oil from water, wherein the step of removing the painting fog is carried out by changing the painting fog into painting powder and then efficiently removing the painting fog. Compared with a traditional process, the method is more reasonable, compact and labor-saving.

Description

technical field [0001] The invention relates to the technical field of recovery of organic solvent waste gas from spray paint, in particular to a device for recovery of waste gas from spray paint organic solvent and a method for recovering organic solvent by using the device. Background technique [0002] The painting process is widely used in machinery, electrical equipment, home appliances, automobiles, ships, furniture and other industries. Raw materials for spray paint—the coating is composed of non-volatile and volatile components. The non-volatile components include film-forming substances and auxiliary film-forming substances. The volatile components refer to curing agents and diluents. And the added liquid substance with good miscibility with the resin, the addition of curing agent is to promote the rapid drying of the paint, increase the adhesion and strength of the paint surface, and improve the chemical stability of the paint. Paint spray exhaust gas is mainly co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/04B01D50/00
Inventor 傅志森傅太平唐源欣傅金栋
Owner 中科天龙(厦门)环保股份有限公司
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