CN214261392U - Waste gas treatment system - Google Patents
Waste gas treatment system Download PDFInfo
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- CN214261392U CN214261392U CN202023163311.XU CN202023163311U CN214261392U CN 214261392 U CN214261392 U CN 214261392U CN 202023163311 U CN202023163311 U CN 202023163311U CN 214261392 U CN214261392 U CN 214261392U
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- 238000011282 treatment Methods 0.000 title claims abstract description 35
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
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- Treating Waste Gases (AREA)
Abstract
The utility model discloses a waste gas treatment system, this waste gas treatment system adopts the UV photodissociation + water processing's processing system that sprays, and waste gas is sucked into the waste gas pipeline by centrifugal fan and gets into square whirlwind spray column after collecting the pipeline collection, and the air photodissociation of UV photodissociation machine carries out the photodissociation and produces ozone and pours into square whirlwind spray column into through the bypass in, and waste gas is through square whirlwind spray column and UV photodissociation machine injection ozone after, discharges through the chimney up to standard; the method has the advantages of mature technology, strong adaptability to flue gas change and stable operation; the method has the advantages of economy, low power consumption, low cost and small occupied area; the management is easy, the operation is convenient, and the equipment performance is stable; and the advantages of environment, noise control, environment coordination, clean production and the like are emphasized. The material consumption is low, and the construction cost is low.
Description
Technical Field
The utility model relates to a technical field of exhaust-gas treatment equipment especially relates to a waste-gas treatment system who adopts water to spray and treatments such as UV photodissociation to the stench waste gas that produces in the production process.
Background
At present, in the production and operation process of aquatic compound feed, certain odorous waste gas can be generated, the odorous waste gas is generated in the production links of drying, cooling and the like of a fish material processing production line, and the waste gas can be discharged only after being processed; the existing exhaust system suitable for the malodorous waste gas treatment basically has the defects of complex equipment structure and process, difficult operation, large overall investment of the waste gas treatment system, large occupied area, inconvenient operation and management, poor water quality after waste gas treatment and the like, and the particles of the treated waste gas exhaust cylinder do not meet the secondary standard of atmospheric pollutant emission limit (DB4424-2001) in two periods and the emission standard of malodorous gas emission standard (GB 14554-93). Accordingly, there is a need for improvements over existing conventional exhaust treatment systems.
Disclosure of Invention
The utility model aims at overcoming the shortcomings of the prior art, the utility model provides a waste gas treatment system, which adopts a treatment system of UV photolysis and water spray treatment, waste gas is pumped into a waste gas pipeline by a centrifugal fan and enters a square cyclone spray tower after being collected by a collecting pipeline, air is photolyzed by a UV photolysis machine to generate ozone and is injected into the square cyclone spray tower through a bypass, and the waste gas is discharged through a chimney after being injected into the ozone through the square cyclone spray tower and the UV photolysis machine; the method has the advantages of mature technology, strong adaptability to flue gas change and stable operation; the method has the advantages of economy, low power consumption, low cost and small occupied area; the management is easy, the operation is convenient, and the equipment performance is stable; and the advantages of environment, noise control, environment coordination, clean production and the like are emphasized. The material consumption is low, and the construction cost is low.
The utility model provides a technical scheme that its technical problem adopted is: a waste gas treatment system comprises a centrifugal fan, a waste gas pipeline connected and installed with the centrifugal fan, a collecting pipeline connected and installed with the waste gas pipeline, a square cyclone spray tower connected and installed with the collecting pipeline, and a chimney connected and installed with the square cyclone spray tower; the device also comprises a UV photolysis machine connected with the square cyclone spray tower and the collecting pipeline, an air blower connected with the UV photolysis machine, and a control box for controlling the actions of the centrifugal fan, the square cyclone spray tower, the UV photolysis machine and the air blower.
The square cyclone spray tower comprises a cyclone layer connected with the collecting pipeline, a spray layer arranged above the cyclone layer and communicated with the cyclone layer, a water tank arranged below the cyclone layer and an air outlet assembly arranged at the top of the spray layer; the water tank is connected with and installs the water pump with spraying between the layer, and the installation is equipped with the drain valve on the water tank. The wet filter is a widely used purifier for treating particles and stink, and the square cyclone spray tower belongs to a high-efficiency wet filter. The square cyclone spray tower has the working principle that the contact between airflow and water or other liquid is utilized to capture particulate matters and stink, so that the waste gas is purified, the treatment efficiency can reach about 80-90%, and the square cyclone spray tower is suitable for treating various waste gases containing the particulate matters and the stink. The process and the product of the square cyclone spray tower have the characteristics of simple structure, low energy consumption, high purification efficiency and wide application range; can effectively remove hydrogen chloride gas (HCL), hydrogen fluoride gas (HF) and chromic acid mist (Cr 0)3) Ammonia (NH)3) Sulfuric acid mist (H)2S04) Hydrogen cyanate gas (NCN), alkali vapor (NaOH), hydrogen sulfide (H)2S), formalin (HCHO), and the like, and can filter most of dust contained in the exhaust gas.
The collecting pipeline comprises at least two spiral air pipes with different diameters, an elbow and a reducing large-small joint which are arranged at the end part of each spiral air pipe, and an air pipe support for supporting and installing the spiral air pipes.
The chimney comprises a chimney air pipe, a chimney support for supporting and installing the chimney air pipe and a monitoring platform which is arranged at the air outlet end of the chimney air pipe and is provided with a handrail. The air outlet end of the chimney air pipe is arranged at a high position, and a conical air cap is arranged at an air outlet of the air outlet end of the chimney air pipe in order to ensure that exhaust gas can be fully diffused and diluted in the atmosphere and rainwater is prevented from entering. The monitoring platform is a measuring device and is used for measuring and monitoring the exhaust gas and adjusting the whole waste gas treatment system when necessary.
UV photodissociation machine including the UV photodissociation organism that is equipped with air intake and air outlet, locate in the UV photodissociation organism and be close to the board-like primary effect filter screen of air intake, install in the UV photodissociation organism and carry out ultraviolet light oxidation catalysis's UV fluorescent tube, install in the UV photodissociation organism and be close to the air outlet and carry out the high energy ion air purifier of ionic oxidation. The photocatalytic degradation is photocatalytic oxidation, and the photocatalytic oxidation is used to adsorb on photocatalyst (such as TiO)2、O3) The foul smell on the surface and the organic waste gas finally decompose the organic substances into CO2And H2And O. The UV photolysis machine is a device for irradiating organic gas by using high-energy high-ozone UV light beams to crack the organic gas; photolytic gases include ammonia, trimethylamine, hydrogen sulfide, methylthiohydrogen, methyl mercaptan, methyl sulfide, dimethyl disulfide, carbon disulfide, and styrene, sulfide H2S, VOC, benzene, toluene, and xylene, so that the free pollutant molecules can be oxidized with ozone to form small harmless or low harmful compounds, such as CO2、H2O, and the like. The high-energy high-ozone UV light beam is utilized to decompose oxygen molecules in the air to generate free oxygen, namely active oxygen, and the free oxygen needs to be combined with the oxygen molecules because positive and negative electrons carried by the free oxygen are unbalanced, so that ozone is generated. UV + O2→O-+ O (active oxygen) O + O2→O3(ozone), it is well known that ozone has a very strong oxidizing effect on organic substances.
Furthermore, an activated carbon adsorption tower is connected and installed between the collecting pipeline and the square cyclone spray tower. The activated carbon adsorption tower is the purification equipment with the best treatment effect on organic waste gas and odor. The active carbon can effectively remove water odor, natural and synthetic dissolved organic matters, micro-pollutants and the like. Most of larger organic molecules, aromatic compounds, halogenated alkynes and the like can be firmly adsorbed on the surface of the active carbon or in gaps, and the active carbon adsorption is used as a deep purification process, and has obvious removal effect on humus, synthetic organic matters and low molecular weight organic matters.
Furthermore, the collecting pipeline is horizontally inclined and provided with a slope, and the slope is 0.002-0.005. The collecting pipeline is simple, compact, beautiful and flat, and is convenient to install, operate and maintain, and the scheme of preferred straightening and resistance reduction is arranged; in order to facilitate air release, drainage, dust accumulation prevention and the like, a certain gradient is required when the horizontal inclined device is arranged.
Furthermore, valves are arranged on the waste gas pipeline and the collecting pipeline.
Furthermore, a washing barrel is arranged in the cyclone layer, and a filler ball is arranged in the washing barrel.
Furthermore, the side wall of the spraying layer is provided with a backflow channel communicated with the water tank.
Waste gas is introduced into the square cyclone spray tower through the waste gas air pipe and the collecting pipeline, and when the waste gas passes through the washing barrel of the cyclone layer, the air belt is accelerated to drive the packing balls to run quickly; in the washing barrel, the waste gas and the water mist are fully mixed and washed; meanwhile, ozone injected by the bypass is fully contacted with the waste gas (UV photolysis decomposition), the waste gas is purified, dehydrated and demisted through the spraying layer, and finally discharged through a chimney. The spray liquid is sprayed and atomized at the top of the spray layer after being pressurized by the water pump at the bottom of the water tank, and finally flows back to the bottom of the water tank for recycling, and the water is discharged through the drain valve when the water tank is turbid and the clean water is replaced in time and injected into the water tank. The purified waste gas reaches the national emission standard.
To sum up, the utility model discloses a waste gas treatment system adopts the treatment system of UV photodissociation + water spray treatment, and waste gas is sucked into the waste gas pipeline by centrifugal fan and gets into square whirlwind spray column after collecting the pipeline, and the air photodissociation of UV photodissociation machine produces ozone and injects square whirlwind spray column in through the bypass, and waste gas passes through square whirlwind spray column and UV photodissociation machine and injects ozone after, discharges through the chimney up to standard; the method has the advantages of mature technology, strong adaptability to flue gas change and stable operation; the method has the advantages of economy, low power consumption, low cost and small occupied area; the management is easy, the operation is convenient, and the equipment performance is stable; and the advantages of environment, noise control, environment coordination, clean production and the like are emphasized. The material consumption is low, and the construction cost is low.
Drawings
Fig. 1 is a schematic block diagram of an exhaust gas treatment system according to embodiment 1 of the present invention;
FIG. 2 is a schematic structural diagram of a square cyclone spray tower;
FIG. 3 is a schematic diagram of the structure of a UV photolyzer.
Detailed Description
Example 1
As shown in fig. 1, the exhaust gas treatment system described in this embodiment 1 includes a centrifugal fan 1, an exhaust gas pipe 2 connected to the centrifugal fan, a collecting pipe 3 connected to the exhaust gas pipe, a square cyclone spray tower 4 connected to the collecting pipe, and a chimney 5 connected to the square cyclone spray tower; the device also comprises a UV photolysis machine 6 connected with the square cyclone spray tower and the collecting pipeline, a blower 7 connected with the UV photolysis machine, and a control box 8 for controlling the actions of the centrifugal fan, the square cyclone spray tower, the UV photolysis machine and the blower.
As shown in fig. 2, the square cyclone spray tower comprises a cyclone layer 9 connected with the collecting pipeline, a spray layer 10 arranged above and communicated with the cyclone layer, a water tank 11 arranged below the cyclone layer, and an air outlet component 12 arranged at the top of the spray layer; a water pump 13 is connected and installed between the water tank and the spraying layer, and a drain valve 14 is installed on the water tank. The wet filter is a widely used purifier for treating particles and stink, and the square cyclone spray tower belongs to a high-efficiency wet filter. The square cyclone spray tower has the working principle that the contact between airflow and water or other liquid is utilized to capture particulate matters and stink, so that the waste gas is purified, the treatment efficiency can reach about 80-90%, and the square cyclone spray tower is suitable for treating various waste gases containing the particulate matters and the stink. The process and the product of the square cyclone spray tower have the characteristics of simple structure, low energy consumption, high purification efficiency and wide application range; can effectively remove hydrogen chloride gas (HCL), hydrogen fluoride gas (HF) and chromic acid mist (Cr 0)3) Ammonia (NH)3) Sulfuric acid mist (H)2S04) Hydrogen cyanate gas (NCN), alkali vapor (NaOH), hydrogen sulfide (H)2S), formalin (HCHO), and the like, and can filter most of dust contained in the exhaust gas.
The collecting pipeline comprises at least two spiral air pipes with different diameters, an elbow and a reducing large-small joint which are arranged at the end part of each spiral air pipe, and an air pipe support for supporting and installing the spiral air pipes.
The chimney comprises a chimney air pipe, a chimney support for supporting and installing the chimney air pipe and a monitoring platform which is arranged at the air outlet end of the chimney air pipe and is provided with a handrail. The air outlet end of the chimney air pipe is arranged at a high position, and a conical air cap is arranged at an air outlet of the air outlet end of the chimney air pipe in order to ensure that exhaust gas can be fully diffused and diluted in the atmosphere and rainwater is prevented from entering. The monitoring platform is a measuring device and is used for measuring and monitoring the exhaust gas and adjusting the whole waste gas treatment system when necessary.
As shown in fig. 3, the UV photolysis machine includes a UV photolysis machine body 17 having an air inlet 15 and an air outlet 16, a plate-type primary filter screen 18 disposed in the UV photolysis machine body and close to the air inlet, a UV lamp tube 19 installed in the UV photolysis machine body for ultraviolet light oxidation catalysis, and a high-energy ion air purifier 20 installed in the UV photolysis machine body and close to the air outlet for ionization oxidation. The photocatalytic degradation is photocatalytic oxidation, and the photocatalytic oxidation is used to adsorb on photocatalyst (such as TiO)2、O3) The foul smell on the surface and the organic waste gas finally decompose the organic substances into CO2And H2And O. The UV photolysis machine is a device for irradiating organic gas by using high-energy high-ozone UV light beams to crack the organic gas; photolytic gases include ammonia, trimethylamine, hydrogen sulfide, methylthiohydrogen, methyl mercaptan, methyl sulfide, dimethyl disulfide, carbon disulfide, and styrene, sulfide H2S, VOC, benzene, toluene, and xylene, so that the free pollutant molecules can be oxidized with ozone to form small harmless or low harmful compounds, such as CO2、H2O, and the like. The high-energy high-ozone UV light beam is utilized to decompose oxygen molecules in the air to generate free oxygen, namely active oxygen, and the free oxygen needs to be combined with the oxygen molecules because positive and negative electrons carried by the free oxygen are unbalanced, so that ozone is generated. UV + O2→O-+ O (active oxygen) O + O2→O3(ozone), it is well known that ozone has a very strong oxidizing effect on organic substances.
In this embodiment, an activated carbon adsorption tower 21 is further connected and installed between the collecting pipeline and the square cyclone spray tower. The activated carbon adsorption tower is the purification equipment with the best treatment effect on organic waste gas and odor. The active carbon can effectively remove water odor, natural and synthetic dissolved organic matters, micro-pollutants and the like. Most of larger organic molecules, aromatic compounds, halogenated alkynes and the like can be firmly adsorbed on the surface of the active carbon or in gaps, and the active carbon adsorption is used as a deep purification process, and has obvious removal effect on humus, synthetic organic matters and low molecular weight organic matters.
In this embodiment, the collecting pipe be the horizontal slope and be provided with the slope, the slope is 0.002 ~ 0.005. The collecting pipeline is simple, compact, beautiful and flat, and is convenient to install, operate and maintain, and the scheme of preferred straightening and resistance reduction is arranged; in order to facilitate air release, drainage, dust accumulation prevention and the like, a certain gradient is required when the horizontal inclined device is arranged.
In this embodiment, the exhaust gas line and the collecting line are also provided with valves 22.
In this embodiment, a washing barrel 23 is arranged in the cyclone layer, and a filler ball is arranged in the washing barrel.
In this embodiment, the side wall of the spraying layer is provided with a backflow channel communicated with the water tank.
Waste gas is introduced into the square cyclone spray tower through the waste gas air pipe and the collecting pipeline, and when the waste gas passes through the washing barrel of the cyclone layer, the air belt is accelerated to drive the packing balls to run quickly; in the washing barrel, the waste gas and the water mist are fully mixed and washed; meanwhile, ozone injected by the bypass is fully contacted with the waste gas (UV photolysis decomposition), the waste gas is purified, dehydrated and demisted through the spraying layer, and finally discharged through a chimney. The spray liquid is sprayed and atomized at the top of the spray layer after being pressurized by the water pump at the bottom of the water tank, and finally flows back to the bottom of the water tank for recycling, and the water is discharged through the drain valve when the water tank is turbid and the clean water is replaced in time and injected into the water tank. The purified waste gas reaches the national emission standard.
The waste gas treatment system adopts a treatment system of UV photolysis and water spraying treatment, waste gas is pumped into a waste gas pipeline by a centrifugal fan and enters a square cyclone spray tower after being collected by a collecting pipeline, air is photolyzed by a UV photolysis machine to generate ozone and is injected into the square cyclone spray tower through a bypass, and the waste gas is discharged after reaching the standard through a chimney after being injected with the ozone by the square cyclone spray tower and the UV photolysis machine; the method has the advantages of mature technology, strong adaptability to flue gas change and stable operation; the method has the advantages of economy, low power consumption, low cost and small occupied area; the management is easy, the operation is convenient, and the equipment performance is stable; and the advantages of environment, noise control, environment coordination, clean production and the like are emphasized. The material consumption is low, and the construction cost is low.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the structure of the present invention in any way. Any simple modification, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention all still fall within the scope of the technical solution of the present invention.
Claims (6)
1. A waste gas treatment system is characterized by comprising a centrifugal fan, a waste gas pipeline connected and installed with the centrifugal fan, a collecting pipeline connected and installed with the waste gas pipeline, a square cyclone spray tower connected and installed with the collecting pipeline, and a chimney connected and installed with the square cyclone spray tower; the device also comprises a UV photolysis machine connected with the square cyclone spray tower, a blower connected with the UV photolysis machine, and a control box for controlling the centrifugal fan, the square cyclone spray tower, the UV photolysis machine and the blower to act;
the square cyclone spray tower comprises a cyclone layer connected with the collecting pipeline, a spray layer arranged above the cyclone layer and communicated with the cyclone layer, a water tank arranged below the cyclone layer and an air outlet assembly arranged at the top of the spray layer; a water pump is connected and installed between the water tank and the spraying layer, and a drain valve is installed on the water tank;
the collecting pipeline comprises at least two spiral air pipes with different diameters, an elbow and a reducing large-small joint which are arranged at the end part of each spiral air pipe, and an air pipe bracket for supporting and installing the spiral air pipes; the chimney comprises a chimney air pipe, a chimney bracket for supporting and installing the chimney air pipe and a monitoring platform which is arranged at the air outlet end of the chimney air pipe and is provided with a handrail;
the UV photodissociation machine including be equipped with the UV photodissociation organism of air intake and air outlet, locate in the UV photodissociation organism and be close to the board-like primary filter screen of air intake, install in the UV photodissociation organism and carry out ultraviolet light oxidation amount catalyzed UV fluorescent tube, install in the UV photodissociation organism and be close to the high energy ion air purifier that the air outlet carries out the ion oxidation.
2. The waste gas treatment system of claim 1, wherein an activated carbon adsorption tower is further connected and installed between the collecting pipeline and the square cyclone spray tower.
3. An effluent treatment system as claimed in claim 2 wherein said collection duct is horizontally sloped with a slope of 0.002 to 0.005.
4. An exhaust treatment system according to claim 3, wherein the exhaust and collection conduits are further provided with valves.
5. The exhaust gas treatment system of claim 4, wherein a washing tub is disposed in the cyclone layer, and a packing ball is disposed in the washing tub.
6. An effluent treatment system as claimed in claim 5 wherein said spray level side walls are provided with return passages communicating with the tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023163311.XU CN214261392U (en) | 2020-12-23 | 2020-12-23 | Waste gas treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023163311.XU CN214261392U (en) | 2020-12-23 | 2020-12-23 | Waste gas treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214261392U true CN214261392U (en) | 2021-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202023163311.XU Expired - Fee Related CN214261392U (en) | 2020-12-23 | 2020-12-23 | Waste gas treatment system |
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| CN (1) | CN214261392U (en) |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20210924 |