CN210786806U - Coating waste gas treatment equipment - Google Patents
Coating waste gas treatment equipment Download PDFInfo
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- CN210786806U CN210786806U CN201921358766.1U CN201921358766U CN210786806U CN 210786806 U CN210786806 U CN 210786806U CN 201921358766 U CN201921358766 U CN 201921358766U CN 210786806 U CN210786806 U CN 210786806U
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Abstract
The utility model discloses a coating waste gas treatment device, belonging to the technical field of waste gas purification; coating waste gas treatment equipment comprises a cyclone plate tower, a demister, a low-temperature plasma purifier and an air inducing mechanism, wherein the top of the cyclone plate tower is connected with the demister through a first smoke tube, the demister is connected with the low-temperature plasma purifier, and the low-temperature plasma purifier is connected with the air inducing mechanism through a second smoke tube; the spraying pipe is positioned in the cyclone plate tower, a waste gas inlet is formed in the side wall of the cyclone plate tower, and a water outlet is formed in the side wall of the bottom of the cyclone plate tower; the water circulating system is also included, one end of the water circulating system is connected with the water outlet, and the other end of the water circulating system is connected with the spray pipe; the utility model discloses application waste gas is through handling the back, and the rate of removal of prediction aromatic hydrocarbon, alcohol ether and epoxy, non-methane total hydrocarbon can reach more than 8%.
Description
Technical Field
The utility model relates to a waste gas purification technical field especially relates to an application exhaust-gas treatment equipment.
Background
The coating waste gas has pungent smell, and can be used for generating harm to skin, blood, heart and lung, liver, nerve and eyes by breathing or directly acting on a human body, and generating photochemical pollution when being discharged into the atmosphere, thereby causing certain influence on the surrounding environment; at present, the treatment of organic waste gas with similar properties to the project is mainly carried out by a combustion method, a low-temperature plasma purification method, an absorption method, an adsorption method and a biological method in China, wherein 1, the combustion method converts organic matters into carbon dioxide and water through combustion, and is suitable for treating high-concentration organic waste gas; 2. the low-temperature plasma purification method generates high-energy active particles, and the high-energy active particles and organic matters in the waste gas undergo a series of oxidation and degradation chemical reactions, so that the high-energy active particles are finally converted into carbon dioxide, water and the like, and the method is suitable for treating the organic waste gas with low concentration and large gas amount; 3. the method for absorbing the organic waste gas by the solvent by the absorption method is suitable for treating the organic waste gas with high, medium and low concentration; 4. the adsorption method utilizes the adsorbent to adsorb the organic waste gas and is suitable for treating the organic waste gas with low concentration and high purification requirement; 5. the biological method is suitable for removing the biodegradable organic waste gas by utilizing the microorganism to degrade the organic waste gas; the existing low-temperature plasma purification method has poor purification effect, and therefore a coating waste gas treatment device is provided to solve the problems.
Disclosure of Invention
The utility model aims at solving the defects in the prior art and providing a coating waste gas treatment device.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
coating waste gas treatment equipment comprises a cyclone plate tower, a demister, a low-temperature plasma purifier and an air inducing mechanism, wherein the top of the cyclone plate tower is connected with the demister through a first smoke tube, the demister is connected with the low-temperature plasma purifier, and the low-temperature plasma purifier is connected with the air inducing mechanism through a second smoke tube;
the spraying pipe is positioned in the cyclone plate tower, a waste gas inlet is formed in the side wall of the cyclone plate tower, and a water outlet is formed in the side wall of the bottom of the cyclone plate tower;
and the water circulation system is also included, one end of the water circulation system is connected with the water outlet, and the other end of the water circulation system is connected with the spray pipe.
Preferably, still include the base, whirl board tower, defroster, low temperature plasma purifier, induced air mechanism all fixed connection are on the base.
Preferably, water circulating system includes water tank, cyclone, first water pump, second water pump, the input of first water pump passes through the connecting pipe and links to each other with the water tank, the output of first water pump links to each other with the shower, second water pump fixed connection is on the base, cyclone fixed connection is on the base, the delivery port links to each other with cyclone, the input of second water pump links to each other with cyclone's purified water output, the output of second water pump links to each other with the water tank.
Preferably, the water tank is provided with a water filling port.
Preferably, the bottom of the cyclone separator is detachably connected with a dirt storage box.
Preferably, an extension pipe is arranged in the water tank, and the upper end of the extension pipe is communicated with the connecting pipe.
Preferably, one end of the spray pipe, which is far away from the first water pump, is connected with an atomizing nozzle.
Compared with the prior art, the utility model provides an application exhaust-gas treatment equipment possesses following beneficial effect:
1. this application exhaust-gas treatment equipment, in the application production process, the point that waste gas produced mainly has two: waste gas generated at the drying room inlet is directly discharged into the atmosphere, and waste gas generated in the drying room channel.
The components of the exhaust gas of the drying room are relatively complex, and the generated harmful components mainly comprise volatile matters such as aromatic hydrocarbon, alcohol ether, epoxy resin and the like, and thermal decomposition products and reactants.
When organic waste gas inlet concentration is ≦ 300 mg/m, enter the whirl board tower and carry out the preliminary treatment, then make the shower spray in the whirl board tower through water circulating system, spray in this technology and play two roles: cooling and removing particles in the paint mist, wherein the third-stage purification efficiency of the cyclone plate tower is more than or equal to 95% (impurities and temperature), and the type of the cyclone plate tower in the scheme is XLB-30;
the water circulating system specifically works as a water circulating system by starting the first water pump, the second water pump and the cyclone separator, water in the water tank is settled by the connecting pipe through the atomizing nozzle to particles in paint mist from the waste gas input port through the first water pump, and the temperature is reduced, then the sewage settled to the bottom of the cyclone plate tower enters the cyclone separator for solid-liquid separation, so that the separated water is conveyed to the water tank again through the second water pump for use, and the particles enter the sewage containing box.
After the waste gas is treated by the cyclone plate tower, the waste gas contains water mist and partial paint mist, the atomized waste gas has great influence on the service life and the treatment effect of the equipment if directly entering the low-temperature plasma purifier, so a demister is required to be additionally arranged to achieve the aim of further filtering the waste gas, the model of the low-temperature plasma purifier in the scheme is DLZ-30, the model of the demister is CWQ-30, finally the waste gas enters the low-temperature plasma purifier, the grade treatment is designed according to the concentration and the air volume of the waste gas), the primary purification efficiency is not less than 60%, the secondary treatment purification efficiency is not less than 75% and can meet the requirements of the purification emission standard, such as the property of triphenyl is relatively stable, the concentration of the single inlet of the triphenyl is not less than 45/m, and the purification effect of the low-temperature plasma purifier can reach the optimal state when the equipment is configured according to the rated capacity under the premise of meeting the conditions, pollutants in the waste gas are treated by low-temperature plasma organic waste gas and are cracked into CO2 and water, and the selectivity of CO2 in products accounts for 50-70%. The concentration of O3 in the product is 50-100mg/m3 (ozone is extremely easy to decompose, is unstable and has no obvious odor; at present, relevant emission standards are not available temporarily, and environmental air quality standards (GB 3095-2012) can be referred to), and the removal rate of aromatic hydrocarbon, alcohol ether and epoxy resin, and non-methane total hydrocarbon can be estimated to reach more than 8% after the coating waste gas is treated.
Drawings
Fig. 1 is a schematic structural diagram of a coating waste gas treatment device according to the present invention;
fig. 2 is a schematic structural diagram of a coating exhaust gas treatment device according to the present invention.
In the figure: 1. a base; 2. a cyclone plate tower; 201. an exhaust gas inlet; 3. a water tank; 301. a first water pump; 302. a shower pipe; 3021. an atomizing spray head; 303. a water injection port; 304. an extension pipe; 4. a cyclone separator; 401. a dirt collection box; 402. a second water pump; 5. a first smoke tube; 6. a demister; 7. a low temperature plasma purifier; 701. a second smoke tube; 8. an air inducing mechanism.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Example (b):
referring to fig. 1-2, a coating waste gas treatment device comprises a cyclone plate tower 2, a demister 6, a low-temperature plasma purifier 7 and an air inducing mechanism 8, wherein the top of the cyclone plate tower 2 is connected with the demister 6 through a first smoke tube 5, the demister 6 is connected with the low-temperature plasma purifier 7, and the low-temperature plasma purifier 7 is connected with the air inducing mechanism 8 through a second smoke tube 701;
the spraying pipe 302 is positioned in the cyclone plate tower 2, the waste gas inlet 201 is arranged on the side wall of the cyclone plate tower 2, and the side wall of the bottom of the cyclone plate tower 2 is provided with a water outlet;
and the water circulation system is also included, one end of the water circulation system is connected with the water outlet, and the other end of the water circulation system is connected with the spray pipe 302.
Still include base 1, whirl board tower 2, defroster 6, low temperature plasma purifier 7, the equal fixed connection of induced air mechanism 8 on base 1.
The water circulation system comprises a water tank 3, a cyclone separator 4, a first water pump 301, a second water pump 402, the input end of the first water pump 301 is connected with the water tank 3 through a connecting pipe, the output end of the first water pump 301 is connected with the spray pipe 302, the second water pump 402 is fixedly connected on the base 1, the cyclone separator 4 is fixedly connected on the base 1, the water outlet is connected with the cyclone separator 4, the input end of the second water pump 402 is connected with the purified water output end of the cyclone separator 4, and the output end of the second water pump 402 is connected with the water tank 3.
The water tank 3 is provided with a water filling port 303.
A dirt storage box 401 is detachably connected to the bottom of the cyclone 4.
An extension pipe 304 is arranged in the water tank 3, and the upper end of the extension pipe 304 is communicated with the connecting pipe.
An atomizing nozzle 3021 is connected to one end of the spray pipe 302 far away from the first water pump 301.
The working principle is as follows: in the coating production process, the points of waste gas generation are mainly two: waste gas generated at the inlet of the drying room 1 is directly discharged into the atmosphere, and waste gas generated in the drying room channel 2.
The components of the exhaust gas of the drying room are relatively complex, and the generated harmful components mainly comprise volatile matters such as aromatic hydrocarbon, alcohol ether, epoxy resin and the like, and thermal decomposition products and reactants.
When organic waste gas inlet concentration is ≦ 300 mg/m, pretreatment is carried out in the cyclone plate tower 2, then the spray pipe 302 is sprayed in the cyclone plate tower 2 through the water circulation system, and the spraying in the process plays two roles: cooling and removing particles in the paint mist, wherein the three-stage purification efficiency of the cyclone plate tower 2 is more than or equal to 95% (impurities and temperature), and the model of the cyclone plate tower 2 in the scheme is XLB-30;
the water circulation system works specifically by starting the first water pump 301, the second water pump 402 and the cyclone separator 4, the water in the water tank 3 is settled by the first water pump 301 through the connecting pipe and the atomizing spray head 3021 to particles in the paint mist from the waste gas inlet 201, and the temperature is reduced, then the sewage settled to the bottom of the cyclone plate tower 2 enters the cyclone separator 4 for solid-liquid separation, so that the separated water is re-conveyed to the water tank 3 for use by the second water pump 402, and the particles enter the dirt storage box 401.
After the waste gas is treated by the cyclone plate tower 2, the waste gas contains water mist and partial paint mist, if the atomized waste gas directly enters the low-temperature plasma purifier 7, the service life and the treatment effect of the equipment are greatly influenced, so a demister 6 is required to be additionally installed to achieve the aim of further filtering the waste gas, the model of the low-temperature plasma purifier 7 in the scheme is DLZ-30, the model of the demister 6 is CWQ-30, finally the waste gas enters the low-temperature plasma purifier 7, the primary purification efficiency is larger than or equal to 60 percent (designed according to the concentration and the volume of the waste gas in the grading treatment) and the secondary purification efficiency is larger than or equal to 75 percent, the requirement of purification and emission standards can be met, for example, the properties of triphenyl is relatively stable, the concentration of the waste gas at a single inlet must be smaller than or equal to 45/m, and when the equipment is configured according to the rated air volume on the premise of meeting the conditions, the purifying effect of the low-temperature plasma purifier 7 reaches the best state, pollutants in the waste gas are treated by the low-temperature plasma organic waste gas and are cracked into CO2 and water, and the selectivity of CO2 in products accounts for 50-70%. The concentration of O3 in the product is 50-100mg/m3 (ozone is extremely easy to decompose, is unstable and has no obvious odor; at present, relevant emission standards are not available temporarily, and environmental air quality standards (GB 3095-2012) can be referred to), and the removal rate of aromatic hydrocarbon, alcohol ether and epoxy resin, and non-methane total hydrocarbon can be estimated to reach more than 8% after the coating waste gas is treated.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (7)
1. The coating waste gas treatment equipment comprises a cyclone plate tower (2), a demister (6), a low-temperature plasma purifier (7) and an air inducing mechanism (8), and is characterized in that the top of the cyclone plate tower (2) is connected with the demister (6) through a first smoke pipe (5), the demister (6) is connected with the low-temperature plasma purifier (7), and the low-temperature plasma purifier (7) is connected with the air inducing mechanism (8) through a second smoke pipe (701);
the spraying device is characterized by further comprising a spraying pipe (302), wherein the spraying pipe (302) is located in the cyclone plate tower (2), a waste gas inlet (201) is formed in the side wall of the cyclone plate tower (2), and a water outlet is formed in the side wall of the bottom of the cyclone plate tower (2);
and the water circulation system is also included, one end of the water circulation system is connected with the water outlet, and the other end of the water circulation system is connected with the spray pipe (302).
2. The coating exhaust gas treatment equipment according to claim 1, further comprising a base (1), wherein the cyclone plate tower (2), the demister (6), the low-temperature plasma purifier (7), and the air inducing mechanism (8) are fixedly connected to the base (1).
3. The coating exhaust gas treatment equipment according to claim 2, wherein the water circulation system comprises a water tank (3), a cyclone separator (4), a first water pump (301) and a second water pump (402), wherein an input end of the first water pump (301) is connected with the water tank (3) through a connecting pipe, an output end of the first water pump (301) is connected with the spray pipe (302), the second water pump (402) is fixedly connected on the base (1), the cyclone separator (4) is fixedly connected on the base (1), the water outlet is connected with the cyclone separator (4), an input end of the second water pump (402) is connected with a purified water output end of the cyclone separator (4), and an output end of the second water pump (402) is connected with the water tank (3).
4. A coating exhaust gas treatment apparatus according to claim 3, wherein the water tank (3) is provided with a water inlet (303).
5. A coated exhaust gas treatment apparatus according to claim 3, wherein a dirt storage box (401) is detachably attached to the bottom of the cyclone (4).
6. A coating exhaust gas treatment apparatus according to claim 3, wherein an extension pipe (304) is provided in the water tank (3), and an upper end of the extension pipe (304) is communicated with the connecting pipe.
7. The painting exhaust gas treatment equipment according to claim 3, characterized in that an atomizing nozzle (3021) is connected to one end of the spray pipe (302) remote from the first water pump (301).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921358766.1U CN210786806U (en) | 2019-08-21 | 2019-08-21 | Coating waste gas treatment equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921358766.1U CN210786806U (en) | 2019-08-21 | 2019-08-21 | Coating waste gas treatment equipment |
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| CN210786806U true CN210786806U (en) | 2020-06-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113332843A (en) * | 2021-05-18 | 2021-09-03 | 济南圣泉集团股份有限公司 | Process for deodorizing and deslagging casting flue gas |
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2019
- 2019-08-21 CN CN201921358766.1U patent/CN210786806U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113332843A (en) * | 2021-05-18 | 2021-09-03 | 济南圣泉集团股份有限公司 | Process for deodorizing and deslagging casting flue gas |
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