CN210645875U - Foul gas dust removal filter equipment - Google Patents
Foul gas dust removal filter equipment Download PDFInfo
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- CN210645875U CN210645875U CN201921302756.6U CN201921302756U CN210645875U CN 210645875 U CN210645875 U CN 210645875U CN 201921302756 U CN201921302756 U CN 201921302756U CN 210645875 U CN210645875 U CN 210645875U
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- dust removal
- cabinet
- dedusting
- filtering
- fixedly connected
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Abstract
The utility model discloses a foul gas dust removal filter equipment relates to industry foul gas dust removal and filters auxiliary device technical field, can't remove and increase staff working strength for the absorption mouth that solves current device, leads to the staff to feel uncomfortable problem owing to inhale foul gas thoroughly inadequately simultaneously. The top of filtering the cabinet is provided with filters the cabinet lid, and filters the cabinet lid and pass through threaded connection with the dust removal filtration cabinet, one side of filtering the cabinet is provided with the dust absorption pipe, and the one end of dust absorption pipe extends to the inside of filtering the cabinet of removing dust, the other end of dust absorption pipe is provided with the bellows, and bellows and dust absorption pipe pass through connecting block sealing connection, one side of bellows is provided with dust absorption fill type cover, and dust absorption fill type cover and bellows fixed connection, the outside of bellows is provided with supports U type piece, the below of supporting U type piece is provided with U type piece support column, and U type piece support column and support U type piece fixed connection.
Description
Technical Field
The utility model relates to an industry foul gas removes dust and filters auxiliary device technical field, specifically is a foul gas removes dust filter equipment.
Background
With the rapid development of economy in China, the living standard of the national people in China is continuously improved, when the national people treat the malodorous gas, the malodorous gas can be transmitted to other places only by other exhaust devices, so that the malodorous gas can be transmitted to other places, the malodorous gas cannot influence workers and the workers feel uncomfortable, and the working efficiency of the workers can be greatly improved.
The working strength of workers is increased due to the fact that an adsorption port cannot move when the existing stink gas outlet device is used, and meanwhile the workers feel uncomfortable due to the fact that stink gas is sucked in not thoroughly enough, and the stink gas dust removal and filtration device is provided for the purposes.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a foul gas dust removal filter equipment to the absorption mouth that proposes current device in solving above-mentioned background art can't remove and increase staff working strength, leads to the staff to feel uncomfortable problem owing to inhale foul gas thoroughly inadequately simultaneously.
In order to achieve the above object, the utility model provides a following technical scheme: a malodorous gas dust removal and filtration device comprises a dust removal and filtration cabinet, wherein a filtration cabinet cover is arranged above the dust removal and filtration cabinet and is in threaded connection with the dust removal and filtration cabinet, a dust suction pipe is arranged on one side of the dust removal and filtration cabinet, one end of the dust suction pipe extends into the dust removal and filtration cabinet, a flexible hose is arranged at the other end of the dust suction pipe and is in sealed connection with the dust suction pipe through a connecting block, a dust suction hopper type cover is arranged on one side of the flexible hose and is fixedly connected with the flexible hose, a support U-shaped block is arranged outside the flexible hose, a U-shaped block support column is arranged below the support U-shaped block and is fixedly connected with the support U-shaped block, one end of the U-shaped block support column is fixedly connected with the dust removal and filtration cabinet, and a micro fan is arranged on one side inside the dust removal and filtration cabinet, the micro fan is fixedly connected with the dust removal filter cabinet through a fan fixed block, a fan blade is arranged inside the micro fan and is rotatably connected with the micro fan through a rotating shaft, a catalytic decomposition tank is arranged below the inside of the dust removal filter cabinet and is connected with the micro fan through an L-shaped pipe in a sealing manner, a decomposition tank cover is arranged above the catalytic decomposition tank and is connected with the catalytic decomposition tank through a thread, a micro heating rod is arranged inside the decomposition tank cover, a temperature sensor is arranged on one side of the micro heating rod and is fixedly connected with the decomposition tank cover, the temperature sensor is connected with the micro heating rod through an electric conductor, a catalytic cracking purification tank is arranged on one side of the catalytic decomposition tank, and is connected with the catalytic cracking purification tank through a flow pipe in a sealing manner, the device comprises a catalytic cracking purification tank, a support bottom block, a catalyst placing block, a water containing bowl, a dust removal filtering cabinet, two dust removal box supporting blocks, an active carbon adsorption plate, an adsorption plate supporting block, two adsorption plate supporting blocks, an air outlet pipe, a dust removal box sealing connection pipe, a water inlet pipe, a water outlet pipe, a water inlet pipe, a water outlet pipe, a, one side of the dedusting and filtering cabinet is provided with a filtering cabinet door, one end of the filtering cabinet door is connected with the dedusting and filtering cabinet through a rotating shaft, one end of the outlet pipe extends to the outside of the filtering cabinet door, the upper part of the dedusting and filtering cabinet is provided with a malodor sensor which is fixedly connected with the dedusting and filtering cabinet, one side of the catalytic cracking and purifying tank is provided with a support column which is fixedly connected with the dedusting and filtering cabinet, the lower part of one end of the filtering cabinet door is provided with a sound transmission hole, the upper part of the support column is provided with an alarm which is fixedly connected with the support column, one side of the dedusting and filtering cabinet and one side of the filtering cabinet door are both provided with connecting magnets, one side of the upper part of the filtering cabinet door is provided with a connecting column which is fixedly connected with the filtering cabinet door, and a fixing lug, the upper end of dust removal filtration cabinet is provided with the lug fixed slot, the one end of fixed lug extends to the inside of lug fixed slot, the foul smell sensor passes through the electric conductor with the alarm and is connected.
Preferably, one side of the dedusting filter cabinet is provided with a pushing handle, and the pushing handle is fixedly connected with the dedusting filter cabinet through a pushing handle fixing block.
Preferably, the dust removal filter cabinet is provided with a sliding roller below, and the sliding roller and the dust removal filter cabinet are rotatably connected through a roller fixing column.
Preferably, the two sides of the dedusting filter cabinet are provided with vent holes, and the vent holes are provided with eighteen.
Preferably, the inside of air vent is provided with the dust removal filter screen, and the dust removal filter screen passes through the draw-in groove with the air vent and is connected.
Preferably, a pulling handle is arranged above the vent hole.
Compared with the prior art, the beneficial effects of the utility model are that:
1. this kind of foul gas dust removal filter equipment compares with current industry foul gas dust removal filtration auxiliary device, has been equipped with expansion hose, expansion hose's design can let dust absorption fill type cover can remove to oneself required position so can let foul gas inhale more thoroughly according to user's demand, the absorption mouth of having solved current device can't remove and increase staff working strength, simultaneously because inhale foul gas thoroughly inadequately and lead to the staff to feel uncomfortable problem.
2. This kind of foul gas dust removal filter equipment compares with current industry foul gas dust removal filter auxiliary device, has been equipped with the slip gyro wheel and has promoted the handle, and the design of slip gyro wheel and promotion handle lets the staff change foul gas dust removal filter equipment in the removal and makes more convenience, has solved current foul gas dust removal filter equipment when using because the object is too big and lead to the problem that staff's working strength increases.
3. This kind of foul gas dust removal filter equipment compares with current industry foul gas dust removal filter auxiliary device, has been equipped with the foul smell sensor, and the design of foul smell sensor can in time carry out real-time control to the inside equipment of dust removal filter cabinet, will remind the staff through the alarm when having the foul gas to let out, has solved whether the staff can't leak gas to the inside equipment of dust removal filter cabinet and has carried out real time monitoring's problem.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the dust-removing filtering cabinet of the present invention;
fig. 3 is a partial enlarged view of the area a of the present invention.
In the figure: 1. a dust removal filter cabinet; 2. a vent hole; 3. a dust removal filter screen; 4. pushing the handle; 5. roller fixing columns; 6. a sliding roller; 7. a dust collection pipe; 8. a flexible hose; 9. a dust hopper-shaped cover; 10. supporting the U-shaped block; 11. a U-shaped block support column; 12. a filtering cabinet cover; 13. pulling the handle; 14. a micro fan; 15. a via hole; 16. fan blades; 17. an L-shaped pipe; 18. a catalytic decomposition tank; 19. a temperature sensor; 20. a micro heating rod; 21. a decomposing tank cover; 22. an odor sensor; 23. a water containing bowl; 24. a catalytic cracking purification tank; 25. a support bottom block; 26. a catalyst placement block; 27. a support pillar; 28. a sound propagation hole; 29. an alarm; 30. an electromagnetic communication valve; 31. a dust removal box supporting block; 32. a dust removal box; 33. an adsorption plate supporting block; 34. an activated carbon adsorption plate; 35. an air outlet pipe; 36. a cabinet door of the filter cabinet; 37. connecting columns; 38. connecting a magnet; 39. fixing the bump; 40. a bump fixing groove; 41. the handle is pulled by the cabinet door.
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.
Referring to fig. 1-3, the present invention provides an embodiment: a malodorous gas dust removal and filtration device comprises a dust removal and filtration cabinet 1, a filtration cabinet cover 12 is arranged above the dust removal and filtration cabinet 1, the filtration cabinet cover 12 is connected with the dust removal and filtration cabinet 1 through threads, the connection between the filtration cabinet cover 12 and the dust removal and filtration cabinet 1 is firmer, the design of the filtration cabinet cover 12 ensures that workers can more conveniently overhaul the internal equipment of the dust removal and filtration cabinet 1, one side of the dust removal and filtration cabinet 1 is provided with a dust absorption pipe 7, one end of the dust absorption pipe 7 extends into the dust removal and filtration cabinet 1, the other end of the dust absorption pipe 7 is provided with a flexible hose 8, the flexible hose 8 is hermetically connected with the dust absorption pipe 7 through a connecting block, one side of the flexible hose 8 is provided with a dust absorption hopper type cover 9, the dust absorption hopper type cover 9 is fixedly connected with the flexible hose 8, the design of the dust absorption hopper type cover 9 ensures that malodorous gas can be more conveniently sucked, a support U-shaped block 10, the design of the supporting U-shaped block 10 ensures that the telescopic hose 8 is more firmly fixed, a U-shaped block supporting column 11 is arranged below the supporting U-shaped block 10, the U-shaped block supporting column 11 is fixedly connected with the supporting U-shaped block 10, one end of the U-shaped block supporting column 11 is fixedly connected with the dedusting and filtering cabinet 1, one side inside the dedusting and filtering cabinet 1 is provided with a micro-fan 14, the micro-fan 14 adopts a micro-fan 14 with the model of 150P, the micro-fan 14 is fixedly connected with the dedusting and filtering cabinet 1 through a fan fixing block, a fan blade 16 is arranged inside the micro-fan 14, the fan blade 16 is rotatably connected with the micro-fan 14 through a rotating shaft, the fan blade 16 is convenient to rotate, a catalytic decomposition tank 18 is arranged below the inside the dedusting and filtering cabinet 1, the catalytic decomposition tank 18 is hermetically connected with the micro-fan 14 through an L-shaped pipe 17, a decomposition tank cover 21 is, the decomposition tank cover 21 is connected with the catalytic decomposition tank 18 through threads, so that the decomposition tank cover 21 is connected with the catalytic decomposition tank 18 more firmly, a micro heating rod 20 is arranged in the decomposition tank cover 21, the micro heating rod 20 adopts a micro heating rod 20 with the model of XH-RB3825, a temperature sensor 19 is arranged on one side of the micro heating rod 20, the temperature sensor 19 adopts a temperature sensor 19 with the model of PT-100, the temperature sensor 19 is fixedly connected with the decomposition tank cover 21, the temperature sensor 19 is connected with the micro heating rod 20 through an electric conductor, a catalytic cracking purification tank 24 is arranged on one side of the catalytic decomposition tank 18, the catalytic decomposition tank 18 is connected with the catalytic cracking purification tank 24 through a flow pipe in a sealing manner, a support bottom block 25 is arranged below the catalytic cracking purification tank 24, and the support bottom block 25 is connected with the catalytic cracking purification tank 24 through threads, the connection between the supporting bottom block 25 and the catalytic cracking purification tank 24 is firmer, the catalyst placing block 26 is arranged in the supporting bottom block 25, the water containing bowl 23 is arranged below the catalytic cracking purification tank 24, the water containing bowl 23 is connected with the dedusting and filtering cabinet 1 through a clamping groove, the connection between the water containing bowl 23 and the dedusting and filtering cabinet 1 is firmer, the dust removal box 32 is arranged above the catalytic cracking purification tank 24, the dust removal box 32 is fixedly connected with the dedusting and filtering cabinet 1 through the dust removal box supporting block 31, the number of the dust removal box supporting blocks 31 is two, the dust removal box 32 is hermetically connected with the catalytic cracking purification tank 24 through the electromagnetic communication valve 30, the inside of the dust removal box 32 is provided with the activated carbon adsorption plate 34, the activated carbon adsorption plate 34 is fixedly connected with the dust removal box 32 through the adsorption plate supporting block 33, the number of the adsorption plate supporting blocks 33 is two, the gas outlet pipe 35 is arranged above the dust, an air outlet pipe 35 is hermetically connected with a dust removal box 32, one side of the dust removal filtering cabinet 1 is provided with a filtering cabinet door 36, one end of the filtering cabinet door 36 is connected with the dust removal filtering cabinet 1 through a rotating shaft so as to be convenient for opening the filtering cabinet door 36, one end of the air outlet pipe 35 extends to the outside of the filtering cabinet door 36, a malodor sensor 22 is arranged above the dust removal filtering cabinet 1, the malodor sensor 22 adopts a micro malodor sensor 22 with the model of SGA-400, the malodor sensor 22 is fixedly connected with the dust removal filtering cabinet 1, one side of a catalytic cracking purification tank 24 is provided with a support column 27, the support column 27 is fixedly connected with the dust removal filtering cabinet 1, a sound transmission hole 28 is arranged below one end of the filtering cabinet door 36, an alarm 29 is arranged above the support column 27, the alarm 29 adopts an alarm 29 with the model of LTD-5102, and the alarm 29 is, one side of dust removal filtration cabinet 1 and one side of filtering cabinet door 36 all are provided with connecting magnet 38, and one side of filtering cabinet door 36 top is provided with spliced pole 37, and spliced pole 37 and filtering cabinet door 36 fixed connection, and the top of spliced pole 37 is provided with fixed lug 39, and the upper end of dust removal filtration cabinet 1 is provided with lug fixed slot 40, and the one end of fixed lug 39 extends to the inside of lug fixed slot 40, and foul smell sensor 22 passes through the electric conductor with alarm 29 and is connected.
Further, one side of dust removal filtration cabinet 1 is provided with promotes handle 4, and promotes handle 4 and dust removal filtration cabinet 1 through promoting handle fixed block fixed connection, and the design that promotes handle 4 can let the user more convenient when removing this kind of device.
Further, the below of the dust removal filter cabinet 1 is provided with a sliding roller 6, and the sliding roller 6 is rotatably connected with the dust removal filter cabinet 1 through a roller fixing column 5, and the design of the sliding roller 6 facilitates the user to move the dust removal filter cabinet 1 more conveniently.
Further, both sides of the dust removal filter cabinet 1 are provided with vent holes 2, the vent holes 2 are provided with eighteen, and the design of the vent holes 2 facilitates the circulation of gas.
Further, the inside of air vent 2 is provided with dust removal filter screen 3, and dust removal filter screen 3 passes through the draw-in groove with air vent 2 and is connected, lets dust removal filter screen 3 more firm with air vent 2's connection, and the design of dust removal filter screen 3 can prevent that the dust from getting into the inside of dust removal filtration cabinet 1 simultaneously.
Further, a pulling handle 13 is arranged above the vent hole 2, and the design of the pulling handle 13 is more rapid when the device is moved integrally.
The working principle is as follows: when the device is used, a user holds the pushing handle 4, and simultaneously moves the malodorous gas dust removal and filtration device to a position required by a worker, when the malodorous gas needs to be absorbed at a certain position, the telescopic hose 8 only needs to be lifted upwards slightly, then the dust absorption hopper type cover 9 is placed at the position needing to be absorbed, the telescopic hose 8 is designed to facilitate the movement of the dust absorption hopper type cover 9, the gas is communicated to the inside of the catalytic decomposition tank 18 through the dust absorption pipe 7, at the moment, the micro heating rod 20 starts to heat the gas in the catalytic decomposition tank 18, at the moment, the catalyst can completely decompose the malodorous gas, at the moment, the decomposed gas is transmitted to the inside of the catalytic cracking purification tank 24 through the circulation pipe, the catalyst in the catalyst placing block 26 in the catalytic cracking purification tank 24 can purify the malodorous gas, at the moment, the switch of the electromagnetic communication valve 30 can be opened, gas after the purification can flow to the inside of dust removal case supporting shoe 31, the inside active carbon adsorption board 34 of dust removal case supporting shoe 31 can be appeared purifying the gaseous tiny dust of back, the gaseous outlet duct 35 discharge of gas after appearing, there is foul gas's outflow when foul smell sensor 22 perception, will give alarm 29 with signal transmission, at this moment, alarm 29 sounds, at this moment the staff just can overhaul the equipment of dust removal filtration cabinet 1 inside, when needs maintain dust removal filtration cabinet 1 internal plant, only need pulling cabinet door pulling handle 41 will filter cabinet door 36 and open, at this moment just can maintain dust removal filtration cabinet 1 internal plant.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. The utility model provides a foul gas dust removal filter equipment, includes dust removal filter cabinet (1), its characterized in that: a filtering cabinet cover (12) is arranged above the dedusting and filtering cabinet (1), the filtering cabinet cover (12) is in threaded connection with the dedusting and filtering cabinet (1), a dust suction pipe (7) is arranged on one side of the dedusting and filtering cabinet (1), one end of the dust suction pipe (7) extends into the dedusting and filtering cabinet (1), a telescopic hose (8) is arranged at the other end of the dust suction pipe (7), the telescopic hose (8) is in sealing connection with the dust suction pipe (7) through a connecting block, a dust suction hopper type cover (9) is arranged on one side of the telescopic hose (8), the dust suction hopper type cover (9) is fixedly connected with the telescopic hose (8), a supporting U-shaped block (10) is arranged outside the telescopic hose (8), a U-shaped block supporting column (11) is arranged below the supporting U-shaped block (10), and the U-shaped block supporting column (11) is fixedly connected with the supporting U-shaped block (10), one end of the U-shaped block supporting column (11) is fixedly connected with the dedusting and filtering cabinet (1), a micro fan (14) is arranged on one side of the interior of the dedusting and filtering cabinet (1), the micro fan (14) is fixedly connected with the dedusting and filtering cabinet (1) through a fan fixing block, a fan blade (16) is arranged inside the micro fan (14), the fan blade (16) is rotatably connected with the micro fan (14) through a rotating shaft, a catalytic decomposition tank (18) is arranged below the interior of the dedusting and filtering cabinet (1), the catalytic decomposition tank (18) is hermetically connected with the micro fan (14) through an L-shaped pipe (17), a decomposition tank cover (21) is arranged above the catalytic decomposition tank (18), the decomposition tank cover (21) is connected with the catalytic decomposition tank (18) through threads, and a micro heating rod (20) is arranged inside the decomposition tank cover (21), one side of the miniature heating rod (20) is provided with a temperature sensor (19), the temperature sensor (19) is fixedly connected with a decomposition tank cover (21), the temperature sensor (19) is connected with the miniature heating rod (20) through an electric conductor, one side of the catalytic decomposition tank (18) is provided with a catalytic cracking purification tank (24), the catalytic decomposition tank (18) is connected with the catalytic cracking purification tank (24) through a flow pipe in a sealing way, a supporting bottom block (25) is arranged below the catalytic cracking purification tank (24), the supporting bottom block (25) is connected with the catalytic cracking purification tank (24) through a thread, a catalyst placing block (26) is arranged inside the supporting bottom block (25), a water containing bowl (23) is arranged below the catalytic cracking purification tank (24), and the water containing bowl (23) is connected with the dust removal filter cabinet (1) through a clamping groove, the catalytic cracking purification tank is characterized in that a dust removal box (32) is arranged above the catalytic cracking purification tank (24), the dust removal box (32) and the dust removal filter cabinet (1) are fixedly connected through a dust removal box supporting block (31), the dust removal box supporting block (31) is provided with two, the dust removal box (32) and the catalytic cracking purification tank (24) are in sealing connection through an electromagnetic communication valve (30), an active carbon adsorption plate (34) is arranged inside the dust removal box (32), the active carbon adsorption plate (34) and the dust removal box (32) are in fixed connection through an adsorption plate supporting block (33), the adsorption plate supporting block (33) is provided with two, an air outlet pipe (35) is arranged above the dust removal box (32), the air outlet pipe (35) is in sealing connection with the dust removal box (32), one side of the dust removal filter cabinet (1) is provided with a filter cabinet door (36), and one end of the filter cabinet door (36) is connected with the dust removal filter cabinet (1), one end of the air outlet pipe (35) extends to the outside of the filtering cabinet door (36), a malodor sensor (22) is arranged above the dedusting filtering cabinet (1), the malodor sensor (22) is fixedly connected with the dedusting filtering cabinet (1), a support pillar (27) is arranged on one side of the catalytic cracking purifying tank (24), the support pillar (27) is fixedly connected with the dedusting filtering cabinet (1), a sound transmission hole (28) is arranged below one end of the filtering cabinet door (36), an alarm (29) is arranged above the support pillar (27), the alarm (29) is fixedly connected with the support pillar (27), a connecting magnet (38) is arranged on one side of the dedusting filtering cabinet (1) and one side of the filtering cabinet door (36), a connecting column (37) is arranged on one side of the filtering cabinet door (36), and the connecting column (37) is fixedly connected with the filtering cabinet door (36), the top of spliced pole (37) is provided with fixed lug (39), the upper end of dust removal filtration cabinet (1) is provided with lug fixed slot (40), the one end of fixed lug (39) extends to the inside of lug fixed slot (40), malodor sensor (22) passes through the electric conductor with alarm (29) and is connected.
2. The malodorous gas dust removal and filtration device according to claim 1, wherein: one side of the dedusting filter cabinet (1) is provided with a pushing handle (4), and the pushing handle (4) is fixedly connected with the dedusting filter cabinet (1) through a pushing handle fixing block.
3. The malodorous gas dust removal and filtration device according to claim 1, wherein: a sliding roller (6) is arranged below the dedusting filter cabinet (1), and the sliding roller (6) is rotatably connected with the dedusting filter cabinet (1) through a roller fixing column (5).
4. The malodorous gas dust removal and filtration device according to claim 1, wherein: both sides of the dust removal filtering cabinet (1) are provided with vent holes (2), and eighteen vent holes (2) are arranged.
5. The malodorous gas dust removal and filtration device according to claim 4, wherein: the inside of air vent (2) is provided with dust removal filter screen (3), and dust removal filter screen (3) passes through the draw-in groove with air vent (2) and is connected.
6. The malodorous gas dust removal and filtration device according to claim 4, wherein: and a pulling handle (13) is arranged above the vent hole (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921302756.6U CN210645875U (en) | 2019-08-13 | 2019-08-13 | Foul gas dust removal filter equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921302756.6U CN210645875U (en) | 2019-08-13 | 2019-08-13 | Foul gas dust removal filter equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210645875U true CN210645875U (en) | 2020-06-02 |
Family
ID=70824396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921302756.6U Active CN210645875U (en) | 2019-08-13 | 2019-08-13 | Foul gas dust removal filter equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210645875U (en) |
-
2019
- 2019-08-13 CN CN201921302756.6U patent/CN210645875U/en active Active
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