CN215570547U - Industrial emission chimney with internal purification structure - Google Patents
Industrial emission chimney with internal purification structure Download PDFInfo
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- CN215570547U CN215570547U CN202121913617.4U CN202121913617U CN215570547U CN 215570547 U CN215570547 U CN 215570547U CN 202121913617 U CN202121913617 U CN 202121913617U CN 215570547 U CN215570547 U CN 215570547U
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- Prior art keywords
- purification
- chimney body
- chimney
- groove
- pipe
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- 238000000746 purification Methods 0.000 title claims abstract description 53
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 66
- 238000007789 sealing Methods 0.000 claims description 38
- 238000001914 filtration Methods 0.000 claims description 23
- 239000000428 dust Substances 0.000 claims description 19
- 239000000779 smoke Substances 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 8
- 238000000605 extraction Methods 0.000 claims description 4
- 230000002000 scavenging effect Effects 0.000 claims 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 44
- 239000003546 flue gas Substances 0.000 abstract description 44
- 239000003344 environmental pollutant Substances 0.000 abstract description 14
- 231100000719 pollutant Toxicity 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 abstract description 7
- 239000000126 substance Substances 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 9
- 239000012535 impurity Substances 0.000 description 9
- 125000004122 cyclic group Chemical group 0.000 description 8
- 239000008187 granular material Substances 0.000 description 7
- 239000007921 spray Substances 0.000 description 7
- 239000002245 particle Substances 0.000 description 4
- 230000035699 permeability Effects 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
The utility model relates to an industrial emission chimney with an internal purification structure, which belongs to the technical field of industrial emission chimneys and comprises a chimney body, wherein a purification groove is arranged at the top end inside the chimney body, the inner wall of the purification groove is in a ring shape, an air exhaust opening is formed in the center of the bottom of the purification groove, an exhaust fan is arranged at the top end of the air exhaust opening, an air collection box is arranged at the top end of the exhaust fan, exhaust pipes are arranged on the periphery of the air collection box, the other end of each exhaust pipe extends into the purification groove, purification liquid is arranged inside the purification groove, and a breathable dustproof plate is fixedly arranged at the top of the purification groove. Through exhaust pipe and air exhauster, with its leading-in purification inslot, make it can be quick absorbed, take place the reaction with the inside purifying liquid of purification inslot to reach the purpose to the purification of flue gas, react the harmful chemical who contains in the flue gas, make the flue gas purer, reduce the pollutant in the flue gas and cause the influence to the air, greatly reduced the pollution degree, reach effectual environmental protection's effect.
Description
Technical Field
The utility model relates to the technical field of industrial emission chimneys, in particular to an industrial emission chimney with an internal purification structure.
Background
An industrial chimney is a structure that provides ventilation for the hot fumes or fumes of a boiler or fireplace. The chimney is usually vertical, or as close to vertical as possible, to ensure a smooth flow of gases, the intake air entering the so-called chimney combustion or chimney effect. The space within the chimney is called a flue.
At present, the existing industrial emission chimney is mostly used for realizing emission of flue gas generated in industrial production by constructing an almost vertical circular channel with hollow inside, but flue gas generated in industrial production in reality cannot be directly emitted into air, so that serious pollution to the air environment can be caused, most of the traditional industrial chimneys do not have the function of purifying the flue gas, and the industrial emission chimney with the internal purification structure is provided for this reason.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides the industrial emission chimney with the internal purification structure, which has the functions of purifying and filtering smoke, can effectively filter large-particle suspended matters contained in the smoke, and can purify chemical pollutants contained in the smoke, so that the pollution to the environment is reduced.
The technical scheme of the utility model is as follows: an industrial emission chimney with an internal purification structure comprises a chimney body, a purification tank and a rotary spray head, the top end of the inner part of the chimney body is provided with a purifying groove, the periphery of the purifying groove is fixedly arranged at the top end of the inner wall of the chimney body through a sealing rubber strip and a mounting screw, the inner wall of the purifying tank is in a ring shape, the central position of the bottom of the purifying tank is provided with an air pumping hole, the top end of the air exhaust opening is provided with an exhaust fan, the periphery of the exhaust fan is hermetically connected with the inner wall of the top end of the air exhaust opening through a mounting screw and a sealing gasket, the top end of the exhaust fan is provided with a gas collection box, the periphery of the gas collection box is provided with an exhaust pipe, one end of the exhaust pipe is hermetically communicated with the gas collection box, the other end of exhaust pipe extends to the inside that purifies the groove, the inside that purifies the groove is equipped with the purifying liquid, the fixed ventilative dust guard that is equipped with in top that purifies the groove.
The working principle of the technical scheme is as follows:
through the purification groove that is equipped with, this internal back of chimney is entered into to the flue gas, by the air exhauster, come to extract the flue gas, with its suction gas collecting box in, the rethread exhaust pipe is with its leading-in purification inslot, make it can be quick by the absorption, take place the reaction with the inside purifying liquid of purification groove, thereby reach the purpose to the purification of flue gas, react the harmful chemical who contains in the flue gas, make the flue gas purer, reduce the pollutant in the flue gas and cause the influence to the air, greatly reduced the pollution degree, reach the effect of effectual environmental protection.
In a further technical scheme, the bottom that purifies the groove is equipped with the water tank, the bottom of water tank is equipped with the mounting bracket, the mounting bracket is cross shape, the inner wall fixed connection of mounting bracket and chimney body that the water tank is equipped with, the bottom of mounting bracket is equipped with the hollow tube, the bottom of hollow tube is equipped with communicating pipe, the periphery of communicating pipe is equipped with rotatory nozzle, the top of water tank is equipped with the pipe, the one end of pipe extends to the bottom of chimney body, the bottom of chimney body is equipped with the cistern, the inside seal intercommunication of pipe and cistern.
Through the water tank that is equipped with, cooperation rotatory nozzle realizes the dust fall effect to the flue gas, can effectually detach the large granule pollutant that contains in the flue gas, makes it adsorbed by the water droplet to the whereabouts deposits to the cistern in, through the pipe that is equipped with, realizes the intercommunication between the water tank retaining basin, makes the water resource can cyclic utilization, reaches the purpose at water economy source.
In a further technical scheme, the inside top of cistern is equipped with the purification filtration net, the periphery of purification filtration net is through the inner wall sealing connection of the joint strip that is equipped with and cistern, bottom one side of cistern is equipped with the water pump, water pump and pipe seal intercommunication.
Through the purification filter screen that is equipped with, come to filter the waste water that falls into in the cistern, filter impurity and the large granule pollutant of aquatic, prevent that impurity from blockking up rotatory nozzle, effectual normal operating who has guaranteed rotatory nozzle plays the purpose that filters the back water source in the suction cistern through the water pump that is equipped with, makes in it can be by leading-in water tank, realizes the cyclic utilization of water resource.
In a further technical scheme, the water inlet one end of water pump is equipped with the dust cover, the dust cover is through sealed pad and the fixed screw that are equipped with and the water inlet end sealing connection of water pump, the surface of dust cover is equipped with the filtration hole.
Through the dust cover that is equipped with cross the filtration hole, carry out the secondary to the water of cistern bottom and filter to improve the purity at water source, prevent that impurity from blockking up rotatory nozzle, the effectual normal operating who guarantees rotatory nozzle realizes the cyclic utilization to the resource.
In a further technical scheme, a flue gas inlet is formed in one side of the bottom end of the outer portion of the chimney body, a sealing connecting piece is arranged on the periphery of the flue gas inlet, and the flue gas inlet is connected with a connecting pipe of the chimney body in a sealing mode through the sealing connecting piece.
Through the sealing connecting piece who is equipped with, realize the sealing connection between flue gas pipeline and the chimney body, make it can guarantee connectivity and leakproofness to improve the filtration purification efficiency to the flue gas.
In a further technical scheme, the top of chimney body is equipped with rain-proof cap, rain-proof cap is through the top fixed connection of the support column that is equipped with and chimney body, the inside exhaust fan that is equipped with in top of chimney body, the exhaust fan is through the joint strip and the installation screw fixed mounting that are equipped with inside the top of chimney body, the exhaust fan sets up in the top that purifies the groove.
Through the rain-proof cap that is equipped with, realize protecting the equipment on chimney body top, prevent that the foreign object from falling into inside the chimney, cause serious influence to each part, guaranteed the safety and the stability of each part greatly.
In a further technical scheme, the bottom of rotatory nozzle is equipped with the secondary filter, the inner wall fixed connection of secondary filter through joint strip and the installation screw that is equipped with and chimney body, the bottom of secondary filter is equipped with elementary filter, the inner wall fixed connection of elementary filter through joint strip and the installation screw that is equipped with and chimney body.
Through the primary filter and the secondary filter that are equipped with, realize the filtration many times to the flue gas to reduce the density of large granule pollutant in the flue gas, effectively improve filtration efficiency, and through the rotatory nozzle that is equipped with, can also carry out effectual washing to primary filter and secondary filter, thereby make it can keep the permeability, guarantee its filtration efficiency.
The utility model has the beneficial effects that:
1. through the purification tank, after the smoke enters the chimney body, the smoke is extracted by the exhaust fan and is pumped into the gas collecting box, and then is guided into the purification tank through the exhaust pipe, so that the smoke can be rapidly absorbed and reacts with the purification liquid in the purification tank, and the aim of purifying the smoke is fulfilled;
2. the water tank is matched with the rotary spray head to realize the dust fall effect on the flue gas, large particle pollutants contained in the flue gas can be effectively removed, and the large particle pollutants are adsorbed by water drops and then fall down to be precipitated into the reservoir;
3. the waste water falling into the reservoir is filtered through the purification filter screen, impurities and large-particle pollutants in the water are filtered, the impurity is prevented from blocking the rotary spray nozzle, the normal operation of the rotary spray nozzle is effectively guaranteed, the purpose of pumping the filtered water into the reservoir is achieved through the water pump, the filtered water can be guided into the water tank, and the cyclic utilization of water resources is realized;
4. the water at the bottom of the reservoir is secondarily filtered through the dust cover and the filtering holes, so that the purity of a water source is improved, impurities are prevented from blocking the rotary spray head, the normal operation of the rotary spray head is effectively ensured, and the cyclic utilization of resources is realized;
5. the sealing connection between the flue gas pipeline and the chimney body is realized through the arranged sealing connecting piece, so that the connectivity and the sealing performance can be ensured, and the flue gas filtering and purifying efficiency is improved;
6. the equipment at the top end of the chimney body is protected through the rain-proof cap, so that foreign objects are prevented from falling into the chimney, serious influence on each part is prevented, and the safety and stability of each part are greatly guaranteed;
7. through the primary filter and the secondary filter that are equipped with, realize the filtration many times to the flue gas to reduce the density of large granule pollutant in the flue gas, effectively improve filtration efficiency, and through the rotatory nozzle that is equipped with, can also carry out effectual washing to primary filter and secondary filter, thereby make it can keep the permeability, guarantee its filtration efficiency.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;
FIG. 2 is a schematic view showing the inside structure of a purification tank according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a plane of an embodiment of the present invention;
FIG. 4 is an enlarged schematic view of A in FIG. 3 according to an embodiment of the present invention;
fig. 5 is an enlarged structural diagram of B in fig. 3 according to an embodiment of the present invention.
Description of reference numerals:
1. a chimney body; 2. a flue gas inlet; 3. a sealing connection; 4. rain-proof caps; 5. an exhaust fan; 6. a reservoir; 7. a purification tank; 8. an exhaust fan; 9. an exhaust duct; 10. a water pump; 11. a dust cover; 12. a filtration pore; 13. a conduit; 14. a water tank; 15. a communicating pipe; 16. rotating the spray head; 17. a primary filter plate; 18. a secondary filter plate; 19. purifying a filter screen; 20. an air extraction opening; 21. a mounting frame; 22. a breathable dust guard; 23. a hollow tube.
Detailed Description
The embodiments of the present invention will be further described with reference to the accompanying drawings.
Example (b):
as shown in fig. 1-5, an industrial exhaust chimney with internal purification structure comprises a chimney body 1, a purification tank 7 and a rotary nozzle 16, wherein the internal top end of the chimney body 1 is provided with the purification tank 7, the periphery of the purification tank 7 is fixedly arranged on the top end of the inner wall of the chimney body 1 through a sealing rubber strip and a mounting screw, the inner wall of the purification tank 7 is in a ring shape, the central position of the bottom of the purification tank 7 is provided with an air suction opening 20, the top end of the air suction opening 20 is provided with an exhaust fan 8, the periphery of the exhaust fan 8 is in sealing connection with the inner wall of the top end of the air suction opening 20 through the mounting screw and a sealing gasket, the top end of the exhaust fan 8 is provided with a gas collection box, exhaust pipes 9 are arranged around the gas collection box, one end of each exhaust pipe 9 is in sealing communication with the gas collection box, and the other end of each exhaust pipe 9 extends to the inside of the purification tank 7, the inside of purifying tank 7 is equipped with the purifying liquid, the top of purifying tank 7 is fixed and is equipped with ventilative dust guard 22.
The working principle of the technical scheme is as follows:
through the purification groove 7 that is equipped with, enter into chimney body 1 back at the flue gas, by air exhauster 8, come to extract the flue gas, with its suction gas-collecting box in, rethread exhaust pipe 9 is with its leading-in purification groove 7 in, make it can be quick by the absorption, react with the inside purifying liquid in purification groove 7, thereby reach the purpose to the purification of flue gas, react the harmful chemical who contains in the flue gas, make the flue gas purer, reduce the pollutant in the flue gas and cause the influence to the air, greatly reduced the pollution degree, reach the effect of effectual environmental protection.
In another embodiment, as shown in fig. 3, the bottom of the purifying tank 7 is provided with a water tank 14, the bottom of the water tank 14 is provided with a mounting bracket 21, the mounting bracket 21 is in a cross shape, the water tank 14 is fixedly connected with the inner wall of the chimney body 1 through the mounting bracket 21, the bottom end of the mounting bracket 21 is provided with a hollow pipe 23, the bottom of the hollow pipe 23 is provided with a communicating pipe 15, the periphery of the communicating pipe 15 is provided with a rotary nozzle 16, the top of the water tank 14 is provided with a conduit 13, one end of the conduit 13 extends to the bottom of the chimney body 1, the bottom of the chimney body 1 is provided with a reservoir 6, and the conduit 13 is communicated with the reservoir 6 in a sealing manner.
Through the water tank 14 that is equipped with, cooperation rotatory nozzle 16 realizes the dust fall effect to the flue gas, can effectually detach the large granule pollutant that contains in the flue gas, makes it adsorbed by the water droplet to the whereabouts deposits to the cistern in, through the pipe 13 that is equipped with, realizes the intercommunication between 14 surplus retaining basins 6 of water tank, makes the water resource can cyclic utilization, reaches the purpose of saving the water source.
In another embodiment, as shown in fig. 3, a purification filter screen 19 is arranged at the top end of the interior of the water reservoir 6, the periphery of the purification filter screen 19 is connected with the inner wall of the water reservoir 6 in a sealing manner through a sealing rubber strip, a water pump 10 is arranged on one side of the bottom of the water reservoir 6, and the water pump 10 is in sealing communication with the guide pipe 13.
Through the purification filter screen 19 that is equipped with, come to filter the waste water that falls into in the cistern 6, filter impurity and the large granule pollutant of aquatic, prevent that impurity from blockking up rotatory nozzle 16, the effectual normal operating who has guaranteed rotatory nozzle 16, through the water pump 10 that is equipped with, play the purpose of filtering back water source in the suction cistern 6, make it can be by leading-in water tank 14 in, realize the cyclic utilization of water resource.
In another embodiment, as shown in fig. 4, a dust cover 11 is arranged at one end of the water inlet of the water pump 10, the dust cover 11 is connected with the water inlet end of the water pump 10 in a sealing manner through a sealing gasket and a fixing screw, and a filtering hole 12 is arranged on the surface of the dust cover 11.
Through the dust cover 11 and the filtration pore 12 that are equipped with, carry out the secondary to the water of cistern 6 bottom and filter to improve the purity at water source, prevent that impurity from blockking up rotatory nozzle 16, the effectual normal operating who guarantees rotatory nozzle 16 realizes the cyclic utilization to the resource.
In another embodiment, as shown in fig. 2, a flue gas inlet 2 is arranged on one side of the outer bottom end of the chimney body 1, a sealing connecting piece 3 is arranged on the periphery of the flue gas inlet 2, and the flue gas inlet 2 is connected with a connecting pipe of the chimney body 1 in a sealing manner through the sealing connecting piece 3.
Through the sealing connecting piece 3 that is equipped with, realize the sealing connection between flue gas pipeline and chimney body 1, make it can guarantee connectivity and leakproofness to improve the filtration purification efficiency to the flue gas.
In another embodiment, as shown in fig. 1, the top of the chimney body 1 is provided with a rain-proof cap 4, the rain-proof cap 4 is fixedly connected with the top of the chimney body 1 through a supporting column provided thereon, an exhaust fan 5 is arranged inside the top end of the chimney body 1, the exhaust fan 5 is fixedly arranged inside the top end of the chimney body 1 through a sealing rubber strip and a mounting screw, which are provided thereon, and the exhaust fan 5 is arranged on the top of the purifying tank 7.
Through rain-proof cap 4 that is equipped with, realize protecting the equipment on 1 top of chimney body, prevent that the foreign object from falling into inside the chimney, cause serious influence to each part, guaranteed the safety and the stability of each part greatly.
In another embodiment, as shown in fig. 3, a secondary filter plate 18 is arranged at the bottom of the rotary sprayer 16, the secondary filter plate 18 is fixedly connected with the inner wall of the chimney body 1 through a sealing rubber strip and mounting screws, a primary filter plate 17 is arranged at the bottom of the secondary filter plate 18, and the primary filter plate 17 is fixedly connected with the inner wall of the chimney body 1 through the sealing rubber strip and the mounting screws.
Through the primary filter 17 and the secondary filter 18 that are equipped with, realize the filtration many times to the flue gas to reduce the density of large granule pollutant in the flue gas, effectively improve filtration efficiency, and through the rotatory nozzle 16 that is equipped with, can also carry out effectual washing to primary filter 17 and secondary filter 18, thereby make it can keep the permeability, guarantee its filtration efficiency.
The above examples only express the specific embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (7)
1. An industrial emission chimney with an internal purification structure, comprising a chimney body (1), a purification tank (7) and a rotary sprayer (16), characterized in that: the inside top of chimney body (1) is equipped with purifies groove (7), the periphery that purifies groove (7) is through joint strip and the installation screw fixed mounting that is equipped with in the inner wall top of chimney body (1), the inner wall that purifies groove (7) is the ring shape, the bottom central point that purifies groove (7) puts and is equipped with extraction opening (20), the top of extraction opening (20) is equipped with air exhauster (8), the periphery of air exhauster (8) is through the installation screw that is equipped with and the sealed top inner wall sealing connection who fills up with extraction opening (20), the top of air exhauster (8) is equipped with the gas collecting box, be equipped with exhaust pipe (9) around the gas collecting box, the one end and the gas collecting box sealing connection of exhaust pipe (9), the other end of exhaust pipe (9) extends to the inside that purifies groove (7), the inside that purifies groove (7) is equipped with the scavenging solution, and a breathable dustproof plate (22) is fixedly arranged at the top of the purification tank (7).
2. An industrial exhaust stack having an internal purifying structure, as claimed in claim 1, wherein: the bottom of purifying groove (7) is equipped with water tank (14), the bottom of water tank (14) is equipped with mounting bracket (21), mounting bracket (21) are cross shape, the inner wall fixed connection of mounting bracket (21) and chimney body (1) through being equipped with water tank (14), the bottom of mounting bracket (21) is equipped with hollow tube (23), the bottom of hollow tube (23) is equipped with communicating pipe (15), the periphery of communicating pipe (15) is equipped with rotatory nozzle (16), the top of water tank (14) is equipped with pipe (13), the one end of pipe (13) extends to the bottom of chimney body (1), the bottom of chimney body (1) is equipped with cistern (6), pipe (13) and the inside seal intercommunication of cistern (6).
3. An industrial exhaust stack having an internal purifying structure, as claimed in claim 2, wherein: the inside top of cistern (6) is equipped with purification filter screen (19), the inner wall sealing connection of joint strip and cistern (6) through being equipped with in the periphery of purification filter screen (19), bottom one side of cistern (6) is equipped with water pump (10), water pump (10) and pipe (13) sealed intercommunication.
4. An industrial exhaust stack having an internal purifying structure, according to claim 3, wherein: the water inlet one end of water pump (10) is equipped with dust cover (11), dust cover (11) are through sealed the pad that is equipped with and the inlet end sealing connection of set screw with water pump (10), the surface of dust cover (11) is equipped with filtration hole (12).
5. An industrial exhaust stack having an internal purifying structure, as claimed in claim 1, wherein: the chimney is characterized in that a smoke inlet (2) is formed in one side of the outer bottom end of the chimney body (1), a sealing connecting piece (3) is arranged on the periphery of the smoke inlet (2), and the smoke inlet (2) is connected with a connecting pipe of the chimney body (1) in a sealing mode through the sealing connecting piece (3) arranged.
6. An industrial exhaust stack having an internal purifying structure, as claimed in claim 1, wherein: the top of chimney body (1) is equipped with rain-proof cap (4), the top fixed connection of support column and chimney body (1) through being equipped with of rain-proof cap (4), the inside exhaust fan (5) that is equipped with in top of chimney body (1), inside in the top of chimney body (1) through the joint strip and the installation screw fixed mounting that are equipped with of exhaust fan (5), exhaust fan (5) set up in the top of purifying groove (7).
7. An industrial exhaust stack having an internal purifying structure, as claimed in claim 2, wherein: the bottom of rotatory nozzle (16) is equipped with secondary filter (18), the inner wall fixed connection of secondary filter (18) through the joint strip and the installation screw that are equipped with and chimney body (1), the bottom of secondary filter (18) is equipped with elementary filter (17), the inner wall fixed connection of elementary filter (17) through the joint strip and the installation screw that are equipped with and chimney body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121913617.4U CN215570547U (en) | 2021-08-16 | 2021-08-16 | Industrial emission chimney with internal purification structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121913617.4U CN215570547U (en) | 2021-08-16 | 2021-08-16 | Industrial emission chimney with internal purification structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215570547U true CN215570547U (en) | 2022-01-18 |
Family
ID=79836006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121913617.4U Expired - Fee Related CN215570547U (en) | 2021-08-16 | 2021-08-16 | Industrial emission chimney with internal purification structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215570547U (en) |
-
2021
- 2021-08-16 CN CN202121913617.4U patent/CN215570547U/en not_active Expired - Fee Related
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Granted publication date: 20220118 |