Water spraying filler system for waste gas treatment

Abstract

The invention discloses a water spray packing system for waste gas treatment, which comprises a spray packing tower, a water storage unit, a first-stage spray packing unit, a second-stage spray packing unit and a tower body opening and closing control unit, an absorption cavity is arranged in the spray packing tower, the first-stage spray packing unit and the second-stage spray packing unit are both arranged in the absorption cavity, and the tower body opening and closing control unit is arranged in the absorption cavity. The bottom of the absorption cavity is communicated with the water storage unit; and the tower body opening and closing control unit is used for controlling the spraying packed tower to be opened when the VOC organic waste gas is introduced and controlling the spraying packed tower to be closed when the VOC organic waste gas is stopped being introduced. When introduction of VOC organic waste gas is stopped, the spray packed tower is controlled to be closed through the tower body opening and closing control unit, the interior of the tower is in a sealed state at the moment, it is guaranteed that the partial pressure of the VOC organic waste gas in the tower is not changed, the VOC organic waste gas in water does not volatilize, pollution to the external environment is prevented, and the treatment efficiency of the VOC organic waste gas is effectively improved.

Description

technical field [0001] The invention relates to the field of waste gas treatment equipment, in particular to a water spray packing system for waste gas treatment. Background technique [0002] Common circuit board factories produce volatile VOC organic waste gas as follows: 1. Photosensitive solder resist ink (high boiling point aromatic solvent), accounting for about 55% of the total, slightly soluble in water and biodegradable; 2. Net washing water (isophorone), accounting for about 15%, is slightly soluble in water and can be biodegraded; 3. Boiling water and industrial alcohol (including methanol, isopropanol and ethanol), accounting for about 20%, soluble in Water, biodegradable; 4. Inner line ink (propylene glycol methyl ether acetate), accounting for about 3%, slightly soluble in water, biodegradable; 5. AB epoxy resin glue (glycerol ether, benzyl alcohol), Accounting for about 3%, slightly soluble in water, biodegradable; 6. Three-proof glue (ethyl acetate), account...

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art, provide a water spray packing system for waste gas treatment, and solve the problem in the prior art that the VOC organic waste gas in the waste liquid escapes again during the transfer process of the saturated spray waste liquid. Scatter into the air, causing secondary pollution; solve the existing technology, when the water spray packed tower stops running, the partial pressure of organic waste gas in the tower will continue to decrease, resulting in the continuous release of VOC organic waste gas dissolved in water into the air Among them, the problem of reducing the treatment efficiency of VOC organic waste gas

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