CN215233020U - Purification system for reducing viscosity of paint spraying waste gas - Google Patents
Purification system for reducing viscosity of paint spraying waste gas Download PDFInfo
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- CN215233020U CN215233020U CN202121317623.3U CN202121317623U CN215233020U CN 215233020 U CN215233020 U CN 215233020U CN 202121317623 U CN202121317623 U CN 202121317623U CN 215233020 U CN215233020 U CN 215233020U
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Abstract
The utility model discloses a purification system for reducing the viscosity of spray painting waste gas, which comprises a tower plate type gas-liquid mixer, a viscosity reducing agent storage tank, a scum storage tank, a dosing tank, a nozzle, a foam catcher, a spray pump, a viscosity reducing agent circulating pump and a dosing pump; the outlet end of the tower plate type gas-liquid mixer is connected with a mist eliminator; the bottom of the tower plate type gas-liquid mixer is communicated with a viscosity reducing agent storage tank, the viscosity reducing agent storage tank is connected with a scum storage tank in a loop mode through a first pipeline and a second pipeline, the scum storage tank is connected with a chemical feeding tank through a third pipeline, and a foam catcher is connected with the viscosity reducing agent storage tank through a fourth pipeline; the tower plate type gas-liquid mixer comprises a plurality of tower plates which are distributed in a staggered mode, a spray nozzle is installed above the tower plates, a spray pump is connected with a second pipeline, a viscosity reducing agent circulating pump is connected with a first pipeline, a dosing pump is connected with a third pipeline, and the spray nozzle is connected with an outlet of the spray pump. The embodiment of the utility model provides a can reduce the waste gas stickness of spraying paint, reduce exhaust-gas treatment's cost, but wide application in exhaust-gas purification technical field.
Description
Technical Field
The utility model relates to an exhaust purification technical field especially relates to a reduce clean system of waste gas stickness that sprays paint.
Background
Coating spray booth exhaust waste gas contains a large amount of coating cloud and all kinds of solid particle, because the coating cloud content is great, tiny particle is more in quantity, and has stronger stickness, if do not reduce its stickness, can adhere on the adsorbing material that VOCs (Volatile Organic Compounds) handled, hardly get rid of, greatly reduced adsorbing material's performance. To ensure a satisfactory emission of the exhaust gas, the adsorbent material needs to be replaced periodically, which increases the operating costs of the exhaust gas treatment.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the utility model provides a reduce the clean system of the waste gas stickness that sprays paint is provided, this system can reduce the waste gas stickness that sprays paint, reduces exhaust-gas treatment's cost.
The embodiment of the utility model provides a reduce purification system of painting waste gas stickness, including column plate type gas-liquid mixer, viscosity reducing agent storage tank, dross storage tank, dosing tank, nozzle, mist catcher, spray pump, viscosity reducing agent circulating pump and dosing pump; the inlet end of the tower plate type gas-liquid mixer is an air inlet into which coating and paint spraying waste gas enters, and the outlet end of the tower plate type gas-liquid mixer is connected with a mist eliminator; the bottom of the tower plate type gas-liquid mixer is communicated with the viscosity reducing agent storage tank, the viscosity reducing agent storage tank is connected with the scum storage tank in a loop mode through a first pipeline input and a second pipeline output, the scum storage tank is connected with the chemical feeding tank through a third pipeline input, and the foam catcher is connected with the viscosity reducing agent storage tank through a fourth pipeline output; the tower plate type gas-liquid mixer comprises a plurality of tower plates which are distributed in a staggered mode, the spray nozzles are installed above the tower plates, the spray pump is connected with the second pipeline, the viscosity reducing agent circulating pump is connected with the first pipeline, the dosing pump is connected with the third pipeline, and the spray nozzles are connected with outlets of the spray pumps.
Alternatively, the tray is installed perpendicular to a side wall of the tray type gas-liquid mixer.
Optionally, the tray edge is fitted with a downcomer.
Optionally, the system further comprises a plurality of pH on-line detectors, and the pH on-line detectors are mounted inside the viscosity reducing agent storage tank and/or the dosing tank.
Optionally, the system further comprises a plurality of conductivity online detectors, wherein the conductivity online detectors are mounted inside the viscosity reducing agent storage tank and/or the dosing tank.
Optionally, the system further comprises a plurality of filters, and the filters are arranged in front of the water inlet of the spray pump and/or the viscosity reducing agent circulating pump and/or the dosing pump.
Implement the embodiment of the utility model provides a include following beneficial effect: the embodiment of the utility model provides a make the waste gas that contains the coating cloud and fall the bonding agent and fully contact the mixture through the column plate of column plate type gas-liquid mixer, make and fall the bonding agent and permeate to the coating cloud inside, utilize the chemical action that falls the bonding agent, destroy the functional group of coating cloud granule, make its stickness reduce until eliminating to reduce the running cost of exhaust-gas treatment; in addition, the scum storage tank is used for treating and recycling the liquid containing the paint residues, so that the treatment cost is further reduced.
Drawings
Fig. 1 is a schematic structural diagram of a purification system for reducing viscosity of paint spraying waste gas according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, an embodiment of the present invention provides a purification system for reducing the viscosity of spray painting waste gas, which includes a tower plate type gas-liquid mixer 2, a viscosity reducing agent storage tank 3, a scum storage tank 4, a chemical adding tank 16, a nozzle 17, a foam catcher 15, a spray pump 5, a viscosity reducing agent circulation pump 6, and a chemical adding pump 7; the inlet end 1 of the tower plate type gas-liquid mixer 2 is an air inlet into which coating and paint spraying waste gas enters, and the outlet end 18 of the tower plate type gas-liquid mixer is connected with a mist eliminator 15; the bottom of the tower plate type gas-liquid mixer 2 is communicated with the viscosity reducing agent storage tank 3, the viscosity reducing agent storage tank 3 forms a loop connection with the scum storage tank 4 through a first pipeline input and a second pipeline output, the scum storage tank 4 is connected with the chemical adding tank 16 through a third pipeline input, and the mist eliminator 15 is connected with the viscosity reducing agent storage tank 3 through a fourth pipeline output; the tower plate type gas-liquid mixer 2 comprises a plurality of tower plates 2-1 which are distributed in a staggered mode, the spray nozzle 17 is installed above the tower plates 2-1, the spray pump 5 is connected with the second pipeline, the viscosity reducing agent circulating pump 6 is connected with the first pipeline, the dosing pump 7 is connected with the third pipeline, and the spray nozzle 17 is connected with an outlet of the spray pump 5.
Specifically, the viscosity reducing agent storage tank 3 further comprises a discharge port 19, and the discharge port 19 is arranged at the bottom position of the viscosity reducing agent storage tank 3 and is used for discharging the viscosity reducing agent of the viscosity reducing agent storage tank 3.
Specifically, the scum storage tank functions as: A. collecting paint slag-containing liquid from a viscosity reducer storage tank, and fishing out the paint slag after floating; B. providing a new viscosity reducing agent containing liquid for the viscosity reducing agent storage tank; C. storing the viscosity reducing liquid from the new configuration of the dosing tank.
Specifically, the medicine adding tank is used for preparing viscosity reducing agents with different polarities and different concentrations according to the characteristics of different paint mist.
It should be noted that the number of the tower plates of the tower plate type gas-liquid mixer can be adjusted, and the thickness of the viscosity reducing agent liquid film on the tower plate can also be adjusted according to the viscosity of the treated paint mist. Specifically, the content of the paint mist particles in the coating waste gas treated by the tower plate type gas-liquid mixer is adjusted, if the content of the paint mist particles is still high, the reaction in the gas-liquid mixer is insufficient, and under the condition that the gas-liquid ratio is not changed, the thickness of a liquid film can be reduced by increasing the number of the tower plates, and the viscosity reducing effect is improved.
It should be noted that the gas-liquid ratio in the column plate type gas-liquid mixer is adjustable, and the flow rate of the spray pump can be adjusted by the frequency converter according to the viscosity reduction effect, so as to obtain a better viscosity reduction effect. Specifically, according to the content of paint mist particles in the coating waste gas treated by the tower plate type gas-liquid mixer, if the content of the paint mist particles is still large, the reaction in the gas-liquid mixer is not sufficient; under the condition that the air inflow of the waste gas is unchanged, the flow of the liquid containing the viscosity reducing agent can be increased, namely, the flow of the spray pump is adjusted through the frequency converter, the gas-liquid ratio is reduced, the gas-liquid contact is more sufficient, and the viscosity reducing effect is improved.
Specifically, the operating principle of the purification system is as follows: the medicine adding tank is provided with viscosity reducing agents with different polarities and different concentrations according to different paint mist characteristics and is conveyed to the scum storage tank through the third pipeline to be subjected to liquid supplementing circulation, the scum storage tank conveys new viscosity reducing agent containing liquid to the viscosity reducing agent storage tank through the first pipeline, and the viscosity reducing agent storage tank sprays the viscosity reducing agent containing liquid onto the pedal through the nozzle; when paint mist-containing waste gas from a spray booth enters a tower plate type gas-liquid mixer from the inlet end of the tower plate type gas-liquid mixer, the paint mist-containing waste gas is fully contacted and mixed with a viscosity reducer on a tower plate of the tower plate type gas-liquid mixer, so that the viscosity reducer permeates into paint mist, and functional groups of paint mist particles are damaged by the chemical action of the viscosity reducer, so that the viscosity of the paint mist particles is reduced until the viscosity is eliminated; the scum storage tank collects the liquid containing paint slag from the viscosity reducing agent storage tank through the second pipeline, the paint slag is fished out completely after floating out, and the mist eliminator conveys collected foam containing paint slag to the viscosity reducing agent storage tank through the fourth pipeline.
It should be noted that, in order to ensure the viscosity reduction effect and stability, the viscosity reducing agents with different polarities and concentrations need to be adopted according to different paint mist characteristics, so that the purpose is achieved, the pertinence is strong, and the viscosity reduction effect is improved; meanwhile, proper PH value, conductivity and gas-liquid ratio are ensured; through the debugging to different polarity nature coating cloud, the stickness that can greatly reduced coating cloud realizes that follow-up VOCs treatment effect is high-efficient stable.
Alternatively, as shown in FIG. 1, the tray 2-1 is installed vertically to the side wall of the tray type gas-liquid mixer 2. The area of the adhesive reducing film is increased by being vertically arranged with the side wall.
Alternatively, as shown in FIG. 1, the tray 2-1 is edge-mounted with a downcomer. The downcomer can further increase the area of the viscosity reducing agent membrane.
Optionally, the system further comprises several PH in-line detectors installed inside the viscosity reducing agent tank 3 and/or the dosing tank 16. As shown in FIG. 1, an on-line pH sensor 11 is installed inside the viscosity reducing agent tank 3, and an on-line pH sensor 14 is installed inside the drug adding tank 16.
Specifically, carry out real-time supervision to the PH value of falling the gluing agent through PH on-line measuring appearance, realize the adjustment through controlling corresponding medicine and flowing back of adding, reduced the blindness nature to guarantee to fall the effect and the stability of gluing.
Optionally, a plurality of conductivity online detectors are further included, and the conductivity online detectors are installed inside the viscosity reducing agent storage tank 3 and/or the dosing tank 16. As shown in FIG. 1, the conductivity on-line detector 12 is installed inside the viscosity reducing agent storage tank 3, and the conductivity on-line detector 13 is installed inside the dosing tank 16.
Specifically, the conductivity of the viscosity reducer is monitored in real time through the conductivity online detector, adjustment is achieved by controlling corresponding dosing and liquid discharging, blindness is reduced, and therefore the viscosity reducer effect and stability are guaranteed.
Optionally, the system further comprises a plurality of filters, and the filters are arranged in front of the water inlet of the spray pump 5 and/or the viscosity reducing agent circulating pump 6 and/or the dosing pump 7. As shown in fig. 1, a filter 8 is installed before the water inlet of the spray pump 5, a filter 9 is installed before the water inlet of the viscosity reducing agent circulating pump 6, and a filter 10 is installed before the water inlet of the dosing pump 7. The filter filters the liquid that flows through the pump before the pump water inlet, increases the life of pump.
Implement the embodiment of the utility model provides a include following beneficial effect: implement the embodiment of the utility model provides a include following beneficial effect: the embodiment of the utility model provides a make the waste gas that contains the coating cloud and fall the bonding agent and fully contact the mixture through the column plate of column plate type gas-liquid mixer, make and fall the bonding agent and permeate to the coating cloud inside, utilize the chemical action that falls the bonding agent, destroy the functional group of coating cloud granule, make its stickness reduce until eliminating to reduce the running cost of exhaust-gas treatment; in addition, the scum storage tank is used for treating and recycling the liquid containing the paint residues, so that the treatment cost is further reduced.
While the preferred embodiments of the present invention have been described, the present invention is not limited to the embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are intended to be included within the scope of the present invention as defined by the appended claims.
Claims (6)
1. A purification system for reducing the viscosity of spray painting waste gas is characterized by comprising a tower plate type gas-liquid mixer, a viscosity reducing agent storage tank, a scum storage tank, a dosing tank, a nozzle, a foam catcher, a spray pump, a viscosity reducing agent circulating pump and a dosing pump; the inlet end of the tower plate type gas-liquid mixer is an air inlet into which coating and paint spraying waste gas enters, and the outlet end of the tower plate type gas-liquid mixer is connected with a mist eliminator; the bottom of the tower plate type gas-liquid mixer is communicated with the viscosity reducing agent storage tank, the viscosity reducing agent storage tank is connected with the scum storage tank in a loop mode through a first pipeline input and a second pipeline output, the scum storage tank is connected with the chemical feeding tank through a third pipeline input, and the foam catcher is connected with the viscosity reducing agent storage tank through a fourth pipeline output; the tower plate type gas-liquid mixer comprises a plurality of tower plates which are distributed in a staggered mode, the spray nozzles are installed above the tower plates, the spray pump is connected with the second pipeline, the viscosity reducing agent circulating pump is connected with the first pipeline, the dosing pump is connected with the third pipeline, and the spray nozzles are connected with outlets of the spray pumps.
2. The system for reducing the viscosity of a painting exhaust gas according to claim 1, wherein the tray is installed perpendicular to a side wall of the tray type gas-liquid mixer.
3. The system of claim 2, wherein a downcomer is mounted to the edge of the tray.
4. The purification system for reducing the viscosity of paint spraying waste gas according to claim 1, further comprising a plurality of pH on-line detectors, wherein the pH on-line detectors are mounted inside the viscosity reducing agent storage tank and/or the dosing tank.
5. The purification system for reducing the viscosity of paint spraying waste gas according to claim 1, further comprising a plurality of conductivity on-line detectors, wherein the conductivity on-line detectors are installed inside the viscosity reducing agent storage tank and/or the chemical adding tank.
6. The system of claim 1, further comprising a plurality of filters installed in front of any one or more of the spray pump, the viscosity reducing agent circulation pump, or the dosing pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121317623.3U CN215233020U (en) | 2021-06-11 | 2021-06-11 | Purification system for reducing viscosity of paint spraying waste gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121317623.3U CN215233020U (en) | 2021-06-11 | 2021-06-11 | Purification system for reducing viscosity of paint spraying waste gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215233020U true CN215233020U (en) | 2021-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121317623.3U Active CN215233020U (en) | 2021-06-11 | 2021-06-11 | Purification system for reducing viscosity of paint spraying waste gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215233020U (en) |
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2021
- 2021-06-11 CN CN202121317623.3U patent/CN215233020U/en active Active
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