CN217188765U - Water paint exhaust treatment system - Google Patents
Water paint exhaust treatment system Download PDFInfo
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- CN217188765U CN217188765U CN202220942197.0U CN202220942197U CN217188765U CN 217188765 U CN217188765 U CN 217188765U CN 202220942197 U CN202220942197 U CN 202220942197U CN 217188765 U CN217188765 U CN 217188765U
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Abstract
The utility model belongs to the technical field of waterborne paint exhaust-gas treatment, a waterborne paint exhaust-gas treatment system is provided, aim at solving the problem that waterborne paint exhaust-gas treatment device blockked up easily among the prior art. The utility model provides a water paint waste gas treatment system, includes one-level spray column, second grade spray column, draught fan and aiutage, the upper end of one-level spray column is provided with first gas outlet, the upper end of second grade spray column is provided with the second gas outlet, first gas outlet pass through the pipeline with second grade spray column link, the second gas outlet pass through the pipeline with the draught fan intercommunication, the draught fan with aiutage link, waste gas flows through in proper order behind one-level spray column, second grade spray column and the fan the aiutage discharges. Through setting up one-level spray column and second grade spray column, not only guaranteed stable discharge to reach standard after water paint waste gas is handled to equipment, and the running cost is low.
Description
Technical Field
The utility model belongs to the technical field of waterborne paint exhaust-gas treatment, concretely relates to waterborne paint exhaust-gas treatment system.
Background
The volatile organic pollutants in the water paint are mainly organic matters with high solubility in water, such as alcohols, alcohol ethers, ammonia and the like. Although the concentration of the waste gas is low, the total emission of volatile organic pollutants is not low due to large usage amount, so that the waste gas not only pollutes the atmospheric environment, but also causes certain harm to the health of human bodies.
At present, the waste gas treatment technology mainly comprises an adsorption method and an absorption method. The adsorption method mainly comprises the processes of activated carbon adsorption, adsorption condensation recovery and adsorption-combustion treatment. Because the spraying process is generally provided with a water curtain spraying table, the waste gas contains a certain amount of paint slag and water vapor, and the saturated water vapor can seriously influence the adsorption effect of the adsorbent. Therefore, the treatment of the water-based paint waste gas by adopting the absorption method becomes the main stream direction of the water-based paint waste gas treatment.
However, the waste gas treatment process of the water-based paint in the prior art has the problems of common absorption effect, easy system blockage, serious water carrying and the like.
SUMMERY OF THE UTILITY MODEL
The utility model provides a waterborne paint exhaust-gas treatment system aims at solving the problem that waterborne paint exhaust-gas treatment device blockked up easily among the prior art.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:
the utility model provides a water paint waste gas treatment system, includes one-level spray column, second grade spray column, draught fan and aiutage, the upper end of one-level spray column is provided with first gas outlet, the upper end of second grade spray column is provided with the second gas outlet, first gas outlet pass through the pipeline with second grade spray column link, the second gas outlet pass through the pipeline with the draught fan intercommunication, the draught fan with aiutage link, waste gas flows through in proper order behind one-level spray column, second grade spray column and the fan the aiutage discharges.
The further improved scheme is as follows: the first-stage spray tower is internally provided with a first sprayer, the lower end of the first-stage spray tower is provided with a first circulating water tank, the first circulating water tank is provided with a first circulating water pump, and the first circulating water tank supplies water to the first sprayer through the first circulating water pump.
The further improved scheme is as follows: a first filter screen is arranged in the first circulating water tank, and liquid in the first circulating water tank is filtered by the first filter screen and then is supplied to the first sprayer by the first circulating water pump. The first filter screen can filter impurities in the circulating water, and pipeline blockage is effectively avoided.
The further improved scheme is as follows: the first sprayer comprises a first spraying group, the number of the first spraying group is at least two, the first spraying group comprises at least two first spray heads, each first spraying group is connected with the first circulating water pump through an independent first water supply pipe, and the first water supply pipe is provided with a first valve.
The further improved scheme is as follows: and a second sprayer is arranged in the second-stage spray tower, a second circulating water tank is arranged at the lower end of the second-stage spray tower, a second circulating water pump is arranged on the second circulating water tank, and the second circulating water tank supplies water to the second sprayer through the second circulating water pump.
The further improved scheme is as follows: and a second filter screen is arranged in the second circulating water tank, and the liquid in the second circulating water tank is filtered by the second filter screen and then is supplied to the second sprayer by the second circulating water pump. The second filter screen can filter impurities in the circulating water, and pipeline blockage is effectively avoided.
The further improved scheme is as follows: the second sprayer comprises a second spraying group, the second spraying group is at least two groups, the second spraying group comprises at least two second spray heads, each group of the second spraying group is connected with the second circulating water pump through an independent second water supply pipe, and the second water supply pipe is provided with a second valve.
The further improved scheme is as follows: and a first demister is arranged in the first-stage spray tower and is arranged above the first sprayer.
The further improved scheme is as follows: and a second demister is arranged in the second-stage spray tower and is arranged above the second sprayer.
The further improved scheme is as follows: a first packing layer is arranged below the first demister in the first-stage spray tower, a first maintenance port convenient for replacing the first packing layer is further arranged on the first-stage spray tower, and a first cover plate covering the first maintenance port is arranged on the first-stage spray tower; a second packing layer is arranged below the second demister in the second-stage spray tower, a second dimension protection opening convenient for replacing the second packing layer is further arranged on the second-stage spray tower, and a second cover plate covering the second dimension protection opening is arranged on the second-stage spray tower.
The utility model has the advantages that:
through setting up one-level spray column and second grade spray column, not only solved single leaf spray column operation unstability, the treatment effeciency is low, the shortcoming that the running cost is high, and through the combination, let the effect greatly increased of each single spray column, form 1+1 > 2 economy, environmental benefit, not only guaranteed that waterborne paint waste gas is stable discharge to reach standard after equipment treatment, and the running cost is low, provides a new technical support for the waterborne paint waste gas treatment field.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for a user of ordinary skill in the art, other related drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of an aqueous paint exhaust treatment system.
The reference numbers in the figures illustrate:
1-first stage spray tower; 2-a secondary spray tower; 7-1-a first demister; 7-2-a second demister; 8-1-a first sprayer; 8-2-a second sprayer; 3-1-a first circulation water tank; 3-2-a second circulating water tank; 4-1-a first circulating water pump; 4-2-a second circulating water pump; 5-an induced draft fan; 6-an exhaust funnel; 9-1-a first packing layer; 9-2-second filler layer.
Detailed Description
The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Based on the embodiments of the present invention, all other embodiments obtained by the technical users in the field without creative work belong to the protection scope of the present invention.
The first embodiment is as follows:
referring to fig. 1, a water paint exhaust-gas treatment system, including one-level spray tower 1, second grade spray tower 2, draught fan 5 and aiutage 6, the upper end of one-level spray tower 1 is provided with first gas outlet, the upper end of second grade spray tower 2 is provided with the second gas outlet, first gas outlet pass through the pipeline with second grade spray tower 2 link, the second gas outlet pass through the pipeline with draught fan 5 intercommunication, draught fan 5 with aiutage 6 link, waste gas flows through in proper order behind one-level spray tower 1, second grade spray tower 2 and the fan via aiutage 6 discharges.
Example two:
in order to further optimize the performance of the water paint waste gas treatment equipment, on the basis of the above embodiment: the first-stage spray tower 1 is internally provided with a first sprayer 8-1, the lower end of the first-stage spray tower 1 is provided with a first circulating water tank 3-1, the first circulating water tank 3-1 is provided with a first circulating water pump 4-1, and the first circulating water tank 3-1 supplies water to the first sprayer 8-1 through the first circulating water pump 4-1.
A first filter screen is arranged in the first circulating water tank 3-1, and liquid in the first circulating water tank 3-1 is filtered by the first filter screen and then is supplied to the first sprayer 8-1 by the first circulating water pump 4-1.
The first sprayer 8-1 comprises a first spraying group, at least two groups of the first spraying group are provided, the first spraying group comprises at least two first spray heads, each group of the first spraying group is connected with the first circulating water pump 4-1 through an independent first water supply pipe, and the first water supply pipes are provided with first valves.
A second sprayer 8-2 is arranged in the secondary spray tower 2, a second circulating water tank 3-2 is arranged at the lower end of the secondary spray tower 2, a second circulating water pump 4-2 is arranged on the second circulating water tank 3-2, and the second circulating water tank 3-2 supplies water to the second sprayer 8-2 through the second circulating water pump 4-2.
A second filter screen is arranged in the second circulating water tank 3-2, and liquid in the second circulating water tank 3-2 is filtered by the second filter screen and then is supplied to the second sprayer 8-2 by the second circulating water pump 4-2.
The second sprayer 8-2 comprises at least two second spraying groups, each second spraying group comprises at least two second spray heads, each second spraying group is connected with the second circulating water pump 4-2 through an independent second water supply pipe, and the second water supply pipes are provided with second valves.
Example three:
in order to further optimize the performance of the water paint waste gas treatment equipment, on the basis of the above embodiment: the first-stage spray tower 1 is internally provided with a first demister 7-1, and the first demister 7-1 is arranged above the first sprayer 8-1.
And a second demister 7-2 is arranged in the secondary spray tower 2, and the second demister 7-2 is arranged above the second sprayer 8-2.
A first packing layer 9-1 is arranged below the first demister 7-1 in the first-stage spray tower 1, a first maintenance opening convenient for replacing the first packing layer 9-1 is further formed in the first-stage spray tower 1, and a first cover plate covering the first maintenance opening is arranged on the first-stage spray tower 1; a second packing layer 9-2 is arranged below the second demister 7-2 in the second-stage spray tower 2, a second dimension protection opening convenient for replacing the second packing layer 9-2 is further arranged on the second-stage spray tower 2, and a second cover plate covering the second dimension protection opening is arranged on the second-stage spray tower 2.
Through setting up first dimension mouth and second dimension mouth of protecting, be convenient for more observation and the maintenance in daily use. Meanwhile, a first sealing ring can be arranged between the first cover plate and the first-stage spray tower 1, and a second sealing ring can be arranged between the second cover plate and the second spray tower, so that the sealing performance is improved.
Application example:
in the case, the waste gas is water paint waste gas, the air quantity is 8, and the first sprayer is 8-15000m 3 And h, the waste gas contains dust, paint slag and TVOC, and the waste gas is collected and then sequentially passes through a first-stage spray tower 1 and a second-stage spray tower 2 from a waste gas collecting pipeline, and is discharged through a waste gas discharge port after reaching the standard.
And the two-stage spray tower is adopted, so that the removal efficiency of pollutants in the waste gas can be effectively improved. The first-stage spray tower 1 and the second-stage spray tower 2 adopt a cyclone plate tower which is not easy to block and has high efficiency, waste gas and absorption liquid are contacted on the blades, the contact area is large, the gas-liquid contact time is long, and the removal efficiency of water-soluble pollutants is greatly improved.
The primary spray tower 1 is only provided with a cyclone plate for demisting, and although the primary spray tower 1 has the problem of carrying water to the secondary spray tower 2, the blockage problem of the primary spray tower 1 can be effectively avoided. After the two-stage spray tower, the viscous paint mist in the waste gas is removed completely, so the two-stage spray tower 2 can increase the design of wire mesh or filler defogging on the basis of the defogging of the spiral-flow plate, can effectively improve the separation effect of the water mist in the waste gas, and avoid the problem of water carrying of the system.
Circulating water in the first circulating water tank 3-1 and the second circulating water tank 3-2 is circularly pumped by the first circulating water pump 4-1 and the second circulating water pump 4-2, paint slag and solid particle pollutants filtered by waste gas in the circulating water are filtered by the first filter screen and the second filter screen, so that the circulating water is cleaned, and then the first circulating water tank 3-1 and the second circulating water tank 3-2 are regularly cleaned, so that the utilization rate of the circulating water can be improved, and pipeline blockage applied in equipment can be effectively avoided.
The utility model provides a pair of waterborne paint exhaust-gas treatment system is further introduced below in combination theory of operation:
the water paint waste gas enters a first-stage spray tower 1, flows upwards from the bottom of the first-stage spray tower 1, enters a first sprayer 8-1 inside the first-stage spray tower 1, is fully contacted with circulating water sprayed from top to bottom inside the first-stage spray tower 1 in a counter-current mode, the circulating water is sprayed on a first packing layer 9-1 through a solid conical atomizing nozzle, a liquid film is formed on the surface of the first packing layer 9-1, the waste gas is contacted with the liquid film in the process that the waste gas passes through the first packing layer 9-1, dust paint slag carried in the water paint waste gas is fully contacted with the liquid film to form a mass transfer process, and the dust paint slag adsorbed water automatically flows into a first circulating water tank 3-1; further removing dust paint slag in the water paint waste gas; and then the water paint waste gas enters a secondary spray tower 2 for treatment again. And after a certain amount of dust paint slag is deposited in the first circulating water tank 3-1 and the second circulating water tank 3-2, cleaning regularly.
A circulating water dosing device can be externally connected with the second circulating water tank 3-2 of the secondary spray tower 2 to dose medicine into the second circulating water tank 3-2.
The induced draft fan 5 can be provided with a frequency converter to adjust the air intake at any time to deal with various different use working conditions.
The water paint waste gas is absorbed by circulating water through a primary spray tower 1 and a secondary spray tower 2, dust paint slag in the water paint waste gas is removed, and the water paint waste gas enters an exhaust funnel 6 through an induced draft fan 5 and is discharged to the outside. The trapped dust paint slag is blocked by a first filter screen in the first circulating water tank 3-1 and a second filter screen in the second circulating water tank 3-2 and retained in the first circulating water tank 3-1 and the second circulating water tank 3-2 for periodic cleaning.
One end of a first circulating water pump 4-1 is connected with a first circulating water tank 3-1 through a drainage pipe, the drainage pipe penetrates through the first circulating water tank 3-1 and is arranged in the first circulating water tank 3-1, a first filter screen arranged in the first circulating water tank 3-1 effectively prevents dust paint slag in circulating liquid from blocking the drainage pipe to cause idle running of the first circulating water pump 4-1 so as to influence the working precision of the whole equipment, one end of the first circulating water pump 4-1 is connected with a first sprayer 8-1 through a connecting pipe, the first sprayer 8-1 comprises a first spraying group, the first spraying group comprises a first spraying pipe and a first spray head, the first spraying pipe is transversely arranged in a primary spraying tower 1, an anti-corrosion coating is arranged on the periphery of the first spraying pipe so as to effectively prevent water-based paint waste gas from corroding the surface of the first spraying pipe, even being provided with first shower nozzle in first shower below, solid conical atomizer is chooseed for use to first shower nozzle, and then the omnidirectional is convenient for handle getting into waste gas in the one-level spray column 1. The second sprayer 8-2 is arranged in a manner referred to the first sprayer 8-1.
The utility model is not limited to the above optional embodiments, and all the schemes can be combined arbitrarily on the premise of no conflict; any other products with various forms can be obtained under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, which is defined by the claims, fall within the protection scope of the present invention.
Claims (10)
1. A water paint exhaust treatment system which characterized in that: including one-level spray column, second grade spray column, draught fan and aiutage, the upper end of one-level spray column is provided with first gas outlet, the upper end of second grade spray column is provided with the second gas outlet, first gas outlet pass through the pipeline with second grade spray column link, the second gas outlet pass through the pipeline with the draught fan intercommunication, the draught fan with aiutage link, waste gas flows through in proper order behind one-level spray column, second grade spray column and the fan the aiutage discharges.
2. The water-based paint exhaust treatment system according to claim 1, wherein: the first-stage spray tower is internally provided with a first sprayer, the lower end of the first-stage spray tower is provided with a first circulating water tank, the first circulating water tank is provided with a first circulating water pump, and the first circulating water tank supplies water to the first sprayer through the first circulating water pump.
3. The water-based paint exhaust treatment system according to claim 2, wherein: a first filter screen is arranged in the first circulating water tank, and liquid in the first circulating water tank is filtered by the first filter screen and then is supplied to the first sprayer by the first circulating water pump.
4. The water-based paint exhaust treatment system according to claim 3, wherein: the first sprayer comprises a first spraying group, the number of the first spraying group is at least two, the first spraying group comprises at least two first spray heads, each first spraying group is connected with the first circulating water pump through an independent first water supply pipe, and the first water supply pipe is provided with a first valve.
5. The water-based paint exhaust treatment system according to claim 4, wherein: and a second sprayer is arranged in the second-stage spray tower, a second circulating water tank is arranged at the lower end of the second-stage spray tower, a second circulating water pump is arranged on the second circulating water tank, and the second circulating water tank supplies water to the second sprayer through the second circulating water pump.
6. The water-based paint exhaust treatment system according to claim 5, wherein: and a second filter screen is arranged in the second circulating water tank, and the liquid in the second circulating water tank is filtered by the second filter screen and then is supplied to the second sprayer by the second circulating water pump.
7. The water-based paint exhaust treatment system according to claim 6, wherein: the second sprayer comprises a second spraying group, the second spraying group is at least two groups, the second spraying group comprises at least two second spray heads, each group of the second spraying group is connected with the second circulating water pump through an independent second water supply pipe, and the second water supply pipe is provided with a second valve.
8. The water-based paint exhaust treatment system according to claim 7, wherein: and a first demister is arranged in the first-stage spray tower and is arranged above the first sprayer.
9. The water-based paint exhaust treatment system according to claim 8, wherein: and a second demister is arranged in the second-stage spray tower and is arranged above the second sprayer.
10. The water-based paint exhaust treatment system according to claim 9, wherein: a first packing layer is arranged below the first demister in the first-stage spray tower, a first maintenance port convenient for replacing the first packing layer is further arranged on the first-stage spray tower, and a first cover plate covering the first maintenance port is arranged on the first-stage spray tower; a second packing layer is arranged below the second demister in the second-stage spray tower, a second dimension protection opening convenient for replacing the second packing layer is further arranged on the second-stage spray tower, and a second cover plate covering the second dimension protection opening is arranged on the second-stage spray tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220942197.0U CN217188765U (en) | 2022-04-22 | 2022-04-22 | Water paint exhaust treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220942197.0U CN217188765U (en) | 2022-04-22 | 2022-04-22 | Water paint exhaust treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217188765U true CN217188765U (en) | 2022-08-16 |
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ID=82774760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220942197.0U Active CN217188765U (en) | 2022-04-22 | 2022-04-22 | Water paint exhaust treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217188765U (en) |
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2022
- 2022-04-22 CN CN202220942197.0U patent/CN217188765U/en active Active
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