CN108543417B - Convenient to use's photocatalysis device - Google Patents
Convenient to use's photocatalysis device Download PDFInfo
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- CN108543417B CN108543417B CN201810199476.0A CN201810199476A CN108543417B CN 108543417 B CN108543417 B CN 108543417B CN 201810199476 A CN201810199476 A CN 201810199476A CN 108543417 B CN108543417 B CN 108543417B
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- deflector
- outlet
- barrel
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- photocatalysis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8678—Removing components of undefined structure
- B01D53/8687—Organic components
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/12—Washers with plural different washing sections
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/80—Type of catalytic reaction
- B01D2255/802—Photocatalytic
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Abstract
The invention discloses a convenient-to-use photocatalytic device, which comprises a photocatalytic mechanism and a pretreatment mechanism, wherein the input end of the pretreatment mechanism is connected with a waste gas conveying pipe, the output end of the pretreatment mechanism is connected with the photocatalytic mechanism, the pretreatment mechanism comprises a cylinder, an aeration mechanism, a plurality of first guide plates, a plurality of second guide plates, an air outlet, a water outlet and a filtering mechanism, the aeration mechanism connected with a waste gas supply pipe is arranged in the lower end of the cylinder, the first guide plates and the second guide plates are arranged in the cylinder, the first guide plates and the second guide plates are alternately arranged, the first guide plates are obliquely arranged rightwards, and the second guide plates are obliquely arranged leftwards.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of a photocatalytic device, in particular to the technical field of a photocatalytic device convenient to use.
[ background of the invention ]
Atmospheric pollution is one of the most outstanding environmental problems in China at present, and industrial organic waste gas is an important source of atmospheric pollutants and is harmful to human health. In recent years, with the development of society, the improvement of material civilization and living standard and the enhancement of environmental protection consciousness, environmental pollution caused by the emission of industrial organic waste gas and serious harm to human health become more and more the focus of attention of governments and people at all levels.
However, the existing photocatalytic devices still have many defects, which limits the application of the technology. The main drawbacks of the currently common photocatalytic devices are: the photocatalytic treatment is adopted independently, so that the treatment effect is poor; the device is not easy to disassemble and is inconvenient to use.
[ summary of the invention ]
The invention aims to solve the problems in the prior art, and provides a convenient-to-use photocatalytic device which can improve the treatment effect and is convenient to use.
In order to achieve the purpose, the invention provides a conveniently used photocatalysis device, which comprises a photocatalysis mechanism and a pretreatment mechanism, wherein the input end of the pretreatment mechanism is connected with a waste gas conveying pipe, the output end of the pretreatment mechanism is connected with the photocatalysis mechanism, the pretreatment mechanism comprises a cylinder body, an aeration mechanism, a plurality of first guide plates, a plurality of second guide plates, an air outlet, a water outlet and a filtering mechanism, the lower end of the cylinder body is internally provided with the aeration mechanism connected with a waste gas supply pipe, the cylinder body is internally provided with the first guide plates and the second guide plates, the first guide plates and the second guide plates are alternately arranged, the first guide plates are obliquely arranged rightwards, the second guide plates are obliquely arranged leftwards, gaps are left between the front ends and the rear ends of the first guide plates and the second guide plates and the cylinder body, and the upper end of the cylinder body is provided with the air outlet, the lower end of the barrel is provided with a water outlet, a filtering mechanism is arranged below the water outlet, the output end of the filtering mechanism is connected with the upper end side face of the barrel, the photocatalytic mechanism comprises a base, a plurality of photocatalytic modules, a plurality of ultraviolet lamps, a shell and two supporting mechanisms, the base is provided with the two supporting mechanisms, the two supporting mechanisms are provided with the shell, the base is provided with the photocatalytic modules and the ultraviolet lamps which are positioned in the shell, the photocatalytic modules and the ultraviolet lamps are alternately arranged, the upper parts of the front end and the rear end of the shell are respectively provided with an air outlet and an air inlet, the air inlet is communicated with the air outlet, the supporting mechanism comprises a portal frame, an air cylinder, a sliding seat and two positioning mechanisms, the base is provided with the portal frame, the two ends of the sliding seat are respectively provided with the positioning mechanisms, and the two positioning, the sliding seat is fixedly connected with the shell, an air cylinder is arranged on a cross beam of the portal frame, and a piston rod of the air cylinder is connected with the sliding seat.
Preferably, the photocatalytic module is a honeycomb-shaped aluminum plate with a photocatalyst carried on the surface.
Preferably, the positioning mechanism comprises a sliding body, an adjusting screw, an adjusting turntable, a wheel shaft, a guide rail wheel and a sliding hole, the sliding seat is provided with the sliding hole, the sliding body is arranged in the sliding hole, the adjusting screw connected with threads is arranged on the sliding body in a penetrating manner, one end of the adjusting screw extends out of the sliding seat and is provided with the adjusting turntable, the other end of the adjusting screw is rotatably connected with the sliding seat, the sliding body is provided with the wheel shaft, and the wheel shaft is provided with the guide rail wheel riding on the outer side of a support column of the portal frame.
Preferably, the base is provided with a groove matched with the photocatalytic module.
Preferably, the housing and the photocatalytic module are sealed by a sealing strip arranged on the inner wall of the housing.
Preferably, the filtering mechanism comprises a tank body, a filtering tank, a collecting hopper, a hose, a dirt outlet, a pull rope, a wire twisting disc, a self-locking motor, a shaft body and a pump set, wherein the dirt outlet higher than the liquid level in the tank body is formed in the front side wall of the tank body, the filtering tank which is low in front and high in back and rotatable is arranged on the inner side of the back side wall of the tank body, the collecting hopper is arranged at the front end of the filtering tank, the output end of the collecting hopper is connected with the dirt outlet through the hose, the rotatable shaft body is arranged at the upper end of the tank body, the wire twisting disc is arranged on the shaft body, the two ends of the pull rope are respectively connected with the filtering tank and the wire twisting disc, the self-locking motor fixedly connected with the shaft body is arranged on the tank body, the.
Preferably, a spray pipe connected with the output end of the pump set is arranged in the upper end of the cylinder, and a spray head is arranged on the spray pipe.
Preferably, the first guide plate and the second guide plate are provided with a mesh at the high end thereof.
Preferably, the aeration mechanism comprises a main pipe body, a plurality of branch pipes and a plurality of hollow conical bodies, wherein the input end of the main pipe body is connected with the waste gas supply pipe, the branch pipes with the output ends facing downwards are arranged on the main pipe body, the hollow conical bodies are arranged at the lower ends of the branch pipes, the lower ends of the hollow conical bodies are cambered surfaces, and aeration holes are uniformly distributed at the lower ends of the hollow conical bodies.
The invention has the beneficial effects that: according to the invention, the waste gas is pretreated by the pretreatment mechanism and then treated by the photocatalytic mechanism, the pretreatment mechanism is designed to facilitate the cleaning of sediments, and the photocatalytic mechanism is convenient to maintain and replace a photocatalytic module. Compared with the prior art, the treatment effect can be improved, and the use is convenient.
The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.
[ description of the drawings ]
FIG. 1 is a schematic view of a photocatalytic device according to the present invention, which is convenient to use;
FIG. 2 is a schematic view of the structure of the aeration means;
fig. 3 is a schematic structural view of the support mechanism.
In the figure: 1-photocatalysis mechanism, 2-pretreatment mechanism, 11-base, 12-photocatalysis module, 13-ultraviolet lamp, 14-shell, 15-supporting mechanism, 16-exhaust port, 17-air inlet, 18-groove, 19-sealing strip, 151-portal frame, 152-cylinder, 153-sliding seat, 154-positioning mechanism, 1541-sliding body, 1542-adjusting screw, 1543-adjusting turntable, 1544-wheel shaft, 1545-guide rail wheel, 1546-sliding hole, 21-cylinder, 22-aeration mechanism, 23-first guide plate, 24-second guide plate, 25-air outlet, 26-water outlet, 27-filtering mechanism, 28-water spray pipe, 29-spray head, 210-reticulate body, 271-groove body, 272-filter tank, 273-collecting hopper, 274-hose, 275-sewage outlet, 276-pull rope, 277-twisted wire coil, 278-self-locking motor, 279-shaft body, 2710-pump group, 221-main pipe body, 222-branch pipe and 223-hollow conical body.
[ detailed description ] embodiments
Referring to fig. 1, 2 and 3, the invention relates to a conveniently used photocatalytic device, comprising a photocatalytic mechanism 1 and a pretreatment mechanism 2, wherein an input end of the pretreatment mechanism 2 is connected with a waste gas conveying pipe, an output end of the pretreatment mechanism 2 is connected with the photocatalytic mechanism 1, the pretreatment mechanism 2 comprises a cylinder 21, an aeration mechanism 22, a plurality of first guide plates 23, a plurality of second guide plates 24, an air outlet 25, a water outlet 26 and a filtering mechanism 27, the aeration mechanism 22 connected with a waste gas supply pipe is arranged in the lower end of the cylinder 21, a first guide plate 23 and a second guide plate 24 are arranged in the cylinder 21, the first guide plate 23 and the second guide plate 24 are alternately arranged, the first guide plate 23 is obliquely arranged to the right, the second guide plate 24 is obliquely arranged to the left, gaps are left between the front and back ends of the first guide plate 23 and the second guide plate 24 and the cylinder 21, the upper end of barrel 21 is equipped with gas outlet 25, the lower extreme of barrel 21 is equipped with outlet 26, the below of outlet 26 is equipped with filtering mechanism 27, filtering mechanism 27's output is connected with the upper end side of barrel 21, photocatalysis mechanism 1 includes base 11, a plurality of photocatalysis module 12, a plurality of ultraviolet lamp 13, casing 14 and two supporting mechanism 15, be equipped with two supporting mechanism 15 on the base 11, be equipped with casing 14 on two supporting mechanism 15, be equipped with photocatalysis module 12 and ultraviolet lamp 13 that are located casing 14 on the base 11, photocatalysis module 12 and ultraviolet lamp 13 set up in turn, the front end upper portion and the rear end upper portion of casing 14 are equipped with gas vent 16 and air inlet 17 respectively, air inlet 17 and gas outlet 25 intercommunication, supporting mechanism 15 includes portal frame 151, cylinder 152, slide 153 and two positioning mechanism 154, the photocatalytic module is characterized in that a portal frame 151 is arranged on the base 11, positioning mechanisms 154 are arranged at two ends of the sliding base 153, the two positioning mechanisms 154 are respectively connected with two support columns of the portal frame 151, the sliding base 153 is fixedly connected with the shell 14, an air cylinder 152 is arranged on a cross beam of the portal frame 151, a piston rod of the air cylinder 152 is connected with the sliding base 153, the photocatalytic module 12 is a honeycomb-shaped aluminum plate with a photocatalyst loaded on the surface, the positioning mechanisms 154 comprise a sliding body 1541, an adjusting screw 1542, an adjusting turntable 1543, a wheel shaft 1544, a guide rail wheel 1545 and a sliding hole 1546, a sliding hole 1546 is arranged on the sliding base 153, a sliding body 1541 is arranged in the sliding hole 1546, the adjusting screw 1542 in threaded connection is arranged on the sliding body 1541 in a penetrating manner, an adjusting turntable 1543 is arranged at one end of the adjusting screw 1542, the sliding base 153 extends out of the sliding base 153, the, the wheel axle 1544 is provided with a guide wheel 1545 riding on the outer side of a support column of the portal frame 151, the base 11 is provided with a groove 18 matched with the photocatalytic module 12, the casing 14 and the photocatalytic module 12 are sealed by a sealing strip 19 arranged on the inner wall of the casing 14, the filter mechanism 27 comprises a tank body 271, a filter tank 272, a collecting bucket 273, a hose 274, a dirt outlet 275, a pull rope 276, a stranded wire disc 277, a self-locking motor 278, an axle body 279 and a pump set 2710, the front side wall of the tank body 271 is provided with the dirt outlet 275 with the height higher than the liquid level in the tank body 271, the inner side of the rear side wall of the tank body 271 is provided with the filter tank 272 with the lower front part and the higher rear part and capable of rotating, the front end of the filter tank 272 is provided with the collecting bucket 273, the output end of the collecting bucket 273 is connected with the dirt outlet 275 through the hose 274, the upper end of, two ends of the pull rope 276 are respectively connected with the filter tank 272 and the twisted wire disc 277, the groove body 271 is provided with a self-locking motor 278 with a rotating shaft fixedly connected with a shaft body 279, the input end of the pump set 2710 is communicated with the groove body 271, the output end of the pump set 2710 is communicated with the rear part of the upper end of the cylinder body 21, a spray pipe 28 connected with the output end of the pump unit 2710 is arranged in the upper end of the cylinder body 21, the spray pipe 28 is provided with a spray head 29, the high ends of the first guide plate 23 and the second guide plate 24 are provided with a net-shaped body 210, the aeration mechanism 22 comprises a main pipe body 221, a plurality of branch pipes 222 and a plurality of hollow conical bodies 223, the input end of the main pipe 221 is connected to the waste gas supply pipe, a branch pipe 222 with the output end facing downwards is arranged on the main pipe 221, the lower ends of the branch pipes 222 are provided with hollow conical bodies 223, the lower ends of the hollow conical bodies 223 are cambered surfaces, and the lower ends of the hollow conical bodies 223 are provided with aeration holes which are uniformly distributed.
The working process of the invention is as follows:
in the working process of the convenient-to-use photocatalytic device, waste gas is dispersed into liquid in the cylinder 21 through the aeration mechanism 22 and is guided by the first guide plate 23 and the second guide plate 24, so that the residence time of the waste gas in water is increased, the waste gas passing through the mesh body 210 is further dispersed by the mesh body 210, the waste gas is in more full contact with the liquid, then the liquid sprayed by the spray head 29 removes dust again before the waste gas enters the air outlet 25, the waste gas output by the air outlet 25 enters the shell 14 through the air inlet 17, and is discharged through the air outlet 16 after being subjected to the matching treatment of the photocatalytic module 12 and the ultraviolet lamp 13.
Liquid in the barrel 21 enters into the filter tank 272 through the outlet 26 and filters, filterable dust particle enters into collection and fights 273, when the dust particle who deposits in the collection fill 273 needs to be discharged, start self-locking motor 278 and drive axis 279 clockwise rotation, axis 279 drives the rotation of capstan 277 and winds up stay cord 276, stay cord 276 drives collection fill 273 upward movement through filter tank 272, the output that is higher than dirt outlet 275 of collection fill 273, the sediment in collection fill 273 and the hose 274 is discharged from dirt outlet 275, treat that the blowdown is accomplished the back, start self-locking motor 278 and drive axis 279 anticlockwise rotation, get back to the initial position until collection fill 273.
When parts need to be overhauled or replaced in the photocatalytic mechanism 1, the piston rod of the starting cylinder 152 retracts to drive the sliding seat 153 to move upwards, the sliding seat 153 drives the shell 14 to move upwards, and then the inside of the shell 14 can be overhauled and the parts can be replaced.
Compared with the prior art, the treatment effect can be improved, and the use is convenient.
The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.
Claims (7)
1. A convenient to use's photocatalysis device which characterized in that: including photocatalysis mechanism (1) and pretreatment mechanism (2), the input and the waste gas duct connection of pretreatment mechanism (2), the output and the photocatalysis mechanism (1) of pretreatment mechanism (2) are connected, pretreatment mechanism (2) are including barrel (21), aeration mechanism (22), a plurality of first deflector (23), a plurality of second deflector (24), gas outlet (25), outlet (26) and filter mechanism (27), be equipped with aeration mechanism (22) of being connected with the waste gas supply pipe in the lower extreme of barrel (21), be equipped with first deflector (23) and second deflector (24) in barrel (21), first deflector (23) and second deflector (24) set up in turn, first deflector (23) slope right side sets up, second deflector (24) slope left side sets up, all stay between the front and back both ends of first deflector (23) and second deflector (24) and barrel (21) There is a gap, the upper end of barrel (21) is equipped with gas outlet (25), the lower extreme of barrel (21) is equipped with outlet (26), the below of outlet (26) is equipped with filtering mechanism (27), the output of filtering mechanism (27) is connected with the upper end side of barrel (21), photocatalysis mechanism (1) includes base (11), a plurality of photocatalysis module (12), a plurality of ultraviolet lamp (13), casing (14) and two supporting mechanism (15), be equipped with two supporting mechanism (15) on base (11), be equipped with casing (14) on two supporting mechanism (15), be equipped with photocatalysis module (12) and ultraviolet lamp (13) that are located casing (14) on base (11), photocatalysis module (12) and ultraviolet lamp (13) set up in turn, the front end upper portion and the rear end upper portion of casing (14) are equipped with gas vent (16) and air inlet (17) respectively, the air inlet (17) is communicated with the air outlet (25), the supporting mechanism (15) comprises a portal frame (151), an air cylinder (152), a sliding seat (153) and two positioning mechanisms (154), the portal frame (151) is arranged on the base (11), the positioning mechanisms (154) are arranged at two ends of the sliding seat (153), the two positioning mechanisms (154) are respectively connected with two supporting columns of the portal frame (151), the sliding seat (153) is fixedly connected with the shell (14), the air cylinder (152) is arranged on a cross beam of the portal frame (151), a piston rod of the air cylinder (152) is connected with the sliding seat (153), the filtering mechanism (27) comprises a groove body (271), a filtering groove (272), a collecting hopper (273), a hose (274), a dirt outlet (275), a pull rope (276), a stranded wire disc (277), a self-locking motor (278), a shaft body (279) and a pump group (2710), the sewage draining device is characterized in that a sewage outlet (275) higher than the liquid level in the tank body (271) is formed in the front side wall of the tank body (271), a filtering tank (272) which is low in front and high in back is arranged on the inner side of the back side wall of the tank body (271), a collecting hopper (273) is arranged at the front end of the filtering tank (272), the output end of the collecting hopper (273) is connected with the sewage outlet (275) through a hose (274), a rotatable shaft body (279) is arranged at the upper end of the tank body (271), a wire twisting disc (277) is arranged on the shaft body (279), two ends of a pulling rope (276) are respectively connected with the filtering tank (272) and the wire twisting disc (277), a self-locking motor (278) with a rotating shaft fixedly connected with the shaft body (279) is arranged on the tank body (271), the input end of a pump group (2710) is communicated with the tank body (271), and the output end, the high ends of the first guide plate (23) and the second guide plate (24) are provided with a net-shaped body (210).
2. A user-friendly photocatalytic device as set forth in claim 1 wherein: the photocatalytic module (12) is a honeycomb-shaped aluminum plate with a photocatalyst loaded on the surface.
3. A user-friendly photocatalytic device as set forth in claim 1 wherein: positioning mechanism (154) is including slider (1541), adjusting screw (1542), regulation carousel (1543), shaft (1544), rail wheel (1545) and draw runner (1546), be equipped with draw runner (1546) on slide (153), be equipped with slider (1541) in draw runner (1546), wear to be equipped with threaded connection's adjusting screw (1542) on slider (1541), slide (153) and be equipped with regulation carousel (1543) are stretched out to the one end of adjusting screw (1542), the other end and slide (153) rotatable coupling, be equipped with shaft (1544) on slider (1541), be equipped with rail wheel (1545) on the outside of the support column of portal frame (151) of riding on shaft (1544).
4. A user-friendly photocatalytic device as set forth in claim 1 wherein: the base (11) is provided with a groove (18) matched with the photocatalytic module (12).
5. A user-friendly photocatalytic device as set forth in claim 1 wherein: the shell (14) and the photocatalytic module (12) are sealed by a sealing strip (19) arranged on the inner wall of the shell (14).
6. A user-friendly photocatalytic device as set forth in claim 1 wherein: the upper end of the barrel body (21) is internally provided with a water spray pipe (28) connected with the output end of the pump set (2710), and the water spray pipe (28) is provided with a spray head (29).
7. A user-friendly photocatalytic device as set forth in any one of claims 1 to 6, wherein: the aeration mechanism (22) comprises a main pipe body (221), a plurality of branch pipes (222) and a plurality of hollow conical bodies (223), wherein the input end of the main pipe body (221) is connected with a waste gas supply pipe, the branch pipes (222) with the output ends facing downwards are arranged on the main pipe body (221), the hollow conical bodies (223) are arranged at the lower ends of the branch pipes (222), the lower ends of the hollow conical bodies (223) are cambered surfaces, and aeration holes which are uniformly distributed are formed in the lower ends of the hollow conical bodies (223).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810199476.0A CN108543417B (en) | 2018-03-12 | 2018-03-12 | Convenient to use's photocatalysis device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810199476.0A CN108543417B (en) | 2018-03-12 | 2018-03-12 | Convenient to use's photocatalysis device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108543417A CN108543417A (en) | 2018-09-18 |
| CN108543417B true CN108543417B (en) | 2021-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810199476.0A Expired - Fee Related CN108543417B (en) | 2018-03-12 | 2018-03-12 | Convenient to use's photocatalysis device |
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| CN (1) | CN108543417B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030050386A (en) * | 2001-12-18 | 2003-06-25 | 주식회사 한국클리너지 | Preparation of catalyst for removal of volatile organic compounds |
| JP2003322370A (en) * | 2002-05-02 | 2003-11-14 | Tonichi Service Kk | Photocatalyst air cleaning apparatus |
| CN105457487A (en) * | 2015-12-13 | 2016-04-06 | 浙江省环境保护科学设计研究院 | Modularized photocatalytic device for organic waste gas treatment and method |
| CN205435348U (en) * | 2016-03-24 | 2016-08-10 | 温州展力环保设备有限公司 | Waste gas treatment equipment |
| CN205764662U (en) * | 2016-06-14 | 2016-12-07 | 武汉德宝装备股份有限公司 | Detent mechanism for the arc welding equipment of automotive gear-shifting fork |
| CN206295816U (en) * | 2016-12-20 | 2017-07-04 | 苏州绿蓝环保服务有限公司 | A kind of photochemical catalytic oxidation catalytic converter |
| CN107754535A (en) * | 2017-11-23 | 2018-03-06 | 郑州源冉生物技术有限公司 | Environment-protecting type exhaust air purifying processing device |
-
2018
- 2018-03-12 CN CN201810199476.0A patent/CN108543417B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030050386A (en) * | 2001-12-18 | 2003-06-25 | 주식회사 한국클리너지 | Preparation of catalyst for removal of volatile organic compounds |
| JP2003322370A (en) * | 2002-05-02 | 2003-11-14 | Tonichi Service Kk | Photocatalyst air cleaning apparatus |
| CN105457487A (en) * | 2015-12-13 | 2016-04-06 | 浙江省环境保护科学设计研究院 | Modularized photocatalytic device for organic waste gas treatment and method |
| CN205435348U (en) * | 2016-03-24 | 2016-08-10 | 温州展力环保设备有限公司 | Waste gas treatment equipment |
| CN205764662U (en) * | 2016-06-14 | 2016-12-07 | 武汉德宝装备股份有限公司 | Detent mechanism for the arc welding equipment of automotive gear-shifting fork |
| CN206295816U (en) * | 2016-12-20 | 2017-07-04 | 苏州绿蓝环保服务有限公司 | A kind of photochemical catalytic oxidation catalytic converter |
| CN107754535A (en) * | 2017-11-23 | 2018-03-06 | 郑州源冉生物技术有限公司 | Environment-protecting type exhaust air purifying processing device |
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| CN108543417A (en) | 2018-09-18 |
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Granted publication date: 20210212 |