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A method for purifying organic waste gas containing paint mist

A technology for organic waste gas and paint mist, applied in chemical instruments and methods, separation methods, and dispersed particle separation, etc., can solve problems such as non-normal operation, large material consumption, and blockage of purification systems, so as to ensure the quality of sprayed products and improve treatment. Efficiency, the effect of improving efficiency

Inactive Publication Date: 2011-12-07
SUZHOU SUJING ENVIRONMENTAL ENG
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Problems solved by technology

Although these methods can purify the organic waste gas containing paint mist to a certain extent, these methods consume a lot of materials, and the purification system is prone to malfunction due to adsorption and clogging of absorbents, which not only affects the processing efficiency and the quality of sprayed products, but also for Clearing the blockage requires more effort and time

Method used

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  • A method for purifying organic waste gas containing paint mist

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Embodiment Construction

[0015] The main process of the treatment method of the organic waste gas containing paint mist according to the present embodiment is as follows: the organic waste gas containing paint mist with a certain flow rate generated by spraying and the lime powder flowing out from the powder storage box 1 under the action of the exhaust fan 5, in the presence of Mixing in the mixer 2 of the trumpet-shaped channel, due to the surface wettability and adhesion characteristics of the paint mist, the powder can effectively capture the paint mist and form a semi-solid condensate. The condensate further enters the filter 3 communicated with the exhaust fan 5 and the mixer 2, and through the filter 3, the condensate is intercepted, while the organic waste gas passes through the activated carbon adsorption device 4 under the action of the exhaust fan 5 Finally, it is discharged from the air outlet of exhaust fan 5, and the whole purification process is completed. At the same time, the coagulat...

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Abstract

The present invention relates to a method for purifying paint mist-containing organic waste gas, which comprises (1): mixing paint mist-containing organic waste gas and moving powder in a mixer, and combining the paint mist and the powder to form a coagulation (2), separating the condensate from the organic waste gas; (3), treating the organic waste gas after the step (2) to remove the organic solvent gas in the waste gas. Adopting the purification method of the present invention can effectively avoid the series of problems caused by the easy blockage of the purification system, not only reduce the waste gas treatment cost, improve the spraying processing efficiency, but also ensure the quality of sprayed products.

Description

technical field [0001] The invention belongs to the technical field of waste gas purification treatment, in particular to a method for purifying organic waste gas containing paint mist. Background technique [0002] Paint is a liquid mixture used as a decorative or protective exterior. Paint mist is a mist-like form formed by the spraying of compressed air during the spraying process of paint. It is a dispersion system in the air, and it is an irregular and uneven complex-moving sol, which is in the state of paint. When used, the paint can effectively adhere to the surface of the product to be processed. Usually, in the process of paint spraying, 75% to 85% of the paint adhered to the product by spraying 1kg of paint is at most 75% to 85%, and the other 15% to 25% of the paint mist entrains the organic solvent that has not yet volatilized. discharge. If the organic waste gas containing paint mist is not purified and treated, it will bring great pollution to the surroundin...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D50/00B01D53/04
Inventor 王家骅
Owner SUZHOU SUJING ENVIRONMENTAL ENG
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