CN112263885A - Dustproof breathing system and method for furniture production workshop - Google Patents
Dustproof breathing system and method for furniture production workshop Download PDFInfo
- Publication number
- CN112263885A CN112263885A CN202011113437.8A CN202011113437A CN112263885A CN 112263885 A CN112263885 A CN 112263885A CN 202011113437 A CN202011113437 A CN 202011113437A CN 112263885 A CN112263885 A CN 112263885A
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- water
- rigid coupling
- gear
- filter screen
- box
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
Abstract
The invention belongs to the technical field of furniture production, and particularly relates to a dustproof breathing system for a furniture production workshop, which comprises a box body, an air suction device and a dust removal device, wherein the air suction device is arranged at the side end of the box body; through setting up dust collector, can purify the air that gets into the box by a wide margin for dust in the air is adsorbed by water, and the aquatic can be broken up the bubble that gets into the box through setting up the filter screen in addition, makes the contact surface increase of air and water, can further clear away impurity.
Description
Technical Field
The invention belongs to the technical field of furniture production, and particularly relates to a dustproof breathing system and a dustproof breathing method for a furniture production workshop.
Background
The dustproof breathing system for the furniture production workshop is an article for protecting the respiratory tract of personnel, has the functions of dust suppression and odor removal, is roughly divided into dust prevention of a pollution source, dust suppression of a transmission path and impurity filtration of a receiving position in use, and can be used for workshop operators or construction sites respectively.
At present, in order to protect workers in a workshop in the prior art, a mask is mostly adopted or impurities in air are removed through a filter screen, but the problem that fine dust in the air cannot be removed through the mask and a traditional air filter in long-term use and observation, and further the air cannot be filtered thoroughly is solved.
Disclosure of Invention
In order to make up for the defects of the prior art and solve the problem that fine dust in air cannot be removed by a mask and a traditional air filter, and further air is not filtered thoroughly, the invention provides the dustproof breathing system and the dustproof breathing method for the furniture production workshop.
The technical scheme adopted by the invention for solving the technical problems is as follows: the dustproof breathing system for the furniture production workshop comprises a box body, an air suction device and a dust removal device, wherein the air suction device is arranged at the side end of the box body, the dust removal device is arranged in the box body, and the air suction device comprises an air inlet assembly, a first motor, a transmission assembly, a third gear, a fourth gear, a fan, a second shaft rod and a first filter screen; the side end of the box body is fixedly connected with an air inlet assembly, the top of the air inlet assembly is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a fourth gear, the side end of the fourth gear is rotatably connected with a transmission assembly, the bottom end of the transmission assembly is rotatably connected with a third gear, the third gear is sleeved on the surface of a second shaft rod, the end part of the second shaft rod is fixedly connected with a fan, and the port of the top of the air inlet assembly is fixedly connected with a first filter screen; the dust removal device comprises a second motor, a fifth gear, a sixth gear, a third shaft lever, a stabilizing cylinder, a cleaning impeller and a second filter screen; the second motor rigid coupling is on the top of box, second motor output rigid coupling has the fifth gear, the fifth gear side rotates and is connected with the sixth gear, the sixth gear cup joints on the third axostylus axostyle, the inside rigid coupling of box has a section of thick bamboo of stabilizing, the third axostylus axostyle runs through to set up inside stabilizing a section of thick bamboo, third axostylus axostyle bottom rigid coupling has the washing impeller, the inner wall rigid coupling of box has the second filter screen.
Preferably, the bottom of the box body is provided with a water circulating device, and the water circulating device comprises a dust collection disc, a sewage pipe, a water tank, a tank cover, a handle, a clean water pipe, a water pump and a third filter screen; the bottom rigid coupling of box has the dust absorption dish, the bottom rigid coupling of dust absorption dish has the sewage pipe, the side rigid coupling of sewage pipe has the water tank, water tank top rigid coupling has the case lid, the inside handle that is provided with of water tank, handle and case lid rigid coupling, handle bottom rigid coupling has the third filter screen, the side rigid coupling of water tank has the clean water pipe, the water tank side is provided with the water pump, the clean water pipe is passed through to the water pump bottom and water tank looks rigid coupling, the clean water pipe is passed through on the water pump top and box looks rigid coupling.
Preferably, the clean water pipe is higher than the sewage pipe, and the third filter screen is arranged in the middle of the sewage pipe and the clean water pipe.
Preferably, the air inlet assembly comprises an air suction cylinder, an air inlet pipe and a one-way valve; the air inlet pipe is fixedly connected to the side wall of the box body, a one-way valve is arranged on the side face of the box body, the bottom end of the one-way valve is fixedly connected with the air inlet pipe, the top end of the one-way valve is fixedly connected with the air inlet pipe, and the side wall of the top end of the air inlet pipe is fixedly connected with an air suction barrel.
Preferably, the transmission assembly comprises a first gear, a first shaft and a second gear; the first gear is fixedly connected to the top end of the first shaft lever, and the second gear is fixedly connected to the bottom end of the first shaft lever.
Preferably, the bottom rigid coupling of box has the landing leg, the lateral wall rigid coupling of box has the inlet tube, the lateral wall of box has the outlet pipe in the bottom rigid coupling that is located the inlet tube, the lateral wall department rigid coupling of box has the outlet duct.
A dustproof breathing method for furniture production workshops is characterized by comprising the following steps: the method comprises the following steps:
s1: adding water from the water inlet pipe until the water overflows the second filter screen, wherein when air enters the box body, the air floats upwards from the port of the air inlet assembly at the bottom, impurities in the air are further filtered when the air passes through the second filter screen, and the cleaning impeller continuously rotates at the bottom end of the second filter screen to remove the impurities filtered by the second filter screen;
s2: after getter device and dust collector work a period, stop getter device and dust collector, then open the water pump, the collection that dust absorption dish can be passed through to the dust that water in the box and bottom precipitate this moment, it is leading-in to the water tank via the sewer pipe again, the inside water of box can follow the inside once of flowing through of water circle device, the filtration of rethread third filter screen, stay the inside at water circle device with the impurity in the box, when work is accomplished, open the outlet pipe of bottom half, put water.
The invention has the beneficial effects that:
1. the invention provides a dustproof breathing system for furniture production workshops, which can greatly purify air entering a box body by arranging a dust removal device so that dust in the air is adsorbed by water, and can disperse bubbles entering the box body by arranging a filter screen in the water so that the contact surface of the air and the water is increased and impurities can be further removed.
2. According to the invention, the water circulation device is arranged, so that the utilization rate of water in the box body can be improved, workers do not need to clean and replace the filter screen in water for a long time, and only the impurities of the filter screen in the water tank need to be replaced, thus the workload of the workers is reduced, and the working efficiency of the water circulation device is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a front view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is an enlarged view of a portion of FIG. 2 at B;
FIG. 5 is an enlarged view of a portion of FIG. 2 at C;
illustration of the drawings:
1. a box body; 2. a suction device; 21. an air intake assembly; 211. an air suction cylinder; 212. an air inlet pipe; 213. a one-way valve; 22. a first motor; 23. a transmission assembly; 231. a first gear; 232. a first shaft lever; 233. a second gear; 24. a third gear; 25. a fourth gear; 26. a fan; 27. a second shaft lever; 28. a first filter screen; 3. a dust removal device; 31. a second motor; 32. a fifth gear; 33. a sixth gear; 34. a third shaft lever; 35. a stabilizing cylinder; 36. cleaning the impeller; 37. a second filter screen; 4. a water circulation device; 41. a dust collection tray; 42. a sewage pipe; 43. a water tank; 44. a box cover; 45. a handle; 46. a clear water pipe; 47. a water pressure pump; 48. a third filter screen; 5. a support leg; 6. a water inlet pipe; 7. a water outlet pipe; 8. and an air outlet pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Specific examples are given below.
Referring to fig. 1 to 5, the present invention provides a dustproof breathing system for furniture production workshops, including a box body 1, an air suction device 2 and a dust removing device 3, wherein the air suction device 2 is disposed at a side end of the box body 1, the dust removing device 3 is disposed inside the box body 1, and the air suction device 2 includes an air inlet assembly 21, a first motor 22, a transmission assembly 23, a third gear 24, a fourth gear 25, a fan 26, a second shaft 27 and a first filter screen 28; the side end of the box body 1 is fixedly connected with an air inlet component 21, the top of the air inlet component 21 is fixedly connected with a first motor 22, the output end of the first motor 22 is fixedly connected with a fourth gear 25, the side end of the fourth gear 25 is rotatably connected with a transmission component 23, the bottom end of the transmission component 23 is rotatably connected with a third gear 24, the third gear 24 is sleeved on the surface of a second shaft lever 27, the end of the second shaft lever 27 is fixedly connected with a fan 26, and the top port of the air inlet component 21 is fixedly connected with a first filter screen 28; the dust removing device 3 comprises a second motor 31, a fifth gear 32, a sixth gear 33, a third shaft rod 34, a stabilizing cylinder 35, a cleaning impeller 36 and a second filter screen 37; the second motor 31 is fixedly connected to the top end of the box body 1, the output end of the second motor 31 is fixedly connected with a fifth gear 32, the side end of the fifth gear 32 is rotatably connected with a sixth gear 33, the sixth gear 33 is sleeved on a third shaft rod 34, a stabilizing cylinder 35 is fixedly connected inside the box body 1, the third shaft rod 34 is arranged inside the stabilizing cylinder 35 in a penetrating manner, the bottom end of the third shaft rod 34 is fixedly connected with a cleaning impeller 36, and the inner wall of the box body 1 is fixedly connected with a second filter screen 37; in the filtering process, firstly, the fan 26 is operated, the outside air is sucked into the air inlet component 21, the fan 26 can be protected due to the arrangement of the first filter screen 28, the phenomenon that the outside overlarge impurities enter the box body 1 can be avoided, when the air enters the box body 1, the air can float upwards from the port of the air inlet component 21 at the bottom, when the air passes through the second filter screen 37, the impurities of the air can be further filtered, in order to avoid the blockage of the second filter screen 37 by the overlarge impurities, the cleaning impeller 36 is arranged, the cleaning impeller 36 continuously rotates at the bottom end of the second filter screen 37, and the impurities filtered by the second filter screen 37 are removed.
As an embodiment of the present invention, the bottom of the box body 1 is provided with a water circulation device 4, and the water circulation device 4 comprises a dust collection tray 41, a sewage pipe 42, a water tank 43, a box cover 44, a handle 45, a clean water pipe 46, a water pressure pump 47 and a third filter screen 48; a dust collection disc 41 is fixedly connected to the bottom end of the box body 1, a sewage pipe 42 is fixedly connected to the bottom end of the dust collection disc 41, a water tank 43 is fixedly connected to the side end of the sewage pipe 42, a tank cover 44 is fixedly connected to the top end of the water tank 43, a handle 45 is arranged inside the water tank 43, the handle 45 is fixedly connected to the tank cover 44, a third filter screen 48 is fixedly connected to the bottom end of the handle 45, a clear water pipe 46 is fixedly connected to the side end of the water tank 43, a water pressure pump 47 is arranged on the side surface of the water tank 43, the bottom end of the water pressure pump 47 is fixedly connected to the water tank 43 through the clear water pipe 46, and the top end; after the air suction device 2 and the dust removing device 3 work for a period of time, the air suction device 2 and the dust removing device 3 are stopped, then the water pressure pump 47 is started, at the moment, water in the box body 1 and dust precipitated at the bottom can be collected by the dust collection disc 41 and then guided into the water tank 43 through the sewage pipe 42, and because the water pressure pump 47 works all the time, a water circulation environment exists, most of water in the box body 1 can flow through the water circulation device 4 once, and then impurities in the box body 1 can be left in the water circulation device 4 through the filtering of the third filter screen 48, so that the box body 1 can work better.
In one embodiment of the present invention, the clean water pipe 46 is located higher than the sewage pipe 42, and the third screen 48 is disposed at a middle position between the sewage pipe 42 and the clean water pipe 46.
As an embodiment of the present invention, the air intake assembly 21 includes an air suction cylinder 211, an air intake pipe 212, and a check valve 213; intake pipe 212 rigid coupling is at the lateral wall of box 1, box 1 side is provided with check valve 213, check valve 213 bottom rigid coupling has intake pipe 212, check valve 213 top rigid coupling has intake pipe 212, intake pipe 212 top lateral wall department rigid coupling has suction tube 211.
As an embodiment of the present invention, the transmission assembly 23 includes a first gear 231, a first shaft 232, and a second gear 233; the first gear 231 is fixedly connected to the top end of the first shaft 232, and the second gear 233 is fixedly connected to the bottom end of the first shaft 232.
As an embodiment of the present invention, a supporting leg 5 is fixedly connected to the bottom end of the box body 1, a water inlet pipe 6 is fixedly connected to the side wall of the box body 1, a water outlet pipe 7 is fixedly connected to the bottom of the water inlet pipe 6 on the side wall of the box body 1, and an air outlet pipe 8 is fixedly connected to the side wall of the box body 1; when the water tank is ready for operation, water is added from the water inlet pipe 6 until the water overflows the second filter screen 37, then the second motor 31 is started during operation, the cleaning impeller 36 rotates continuously on the surface of the second filter screen 37 to remove impurities, and when the operation is completed, the water outlet pipe 7 at the bottom of the tank body 1 is opened to discharge the water.
The working principle is as follows: when the air purifier is ready for operation, water is added from the water inlet pipe 6 until the water overflows the second filter screen 37, in the filtering process, the fan 26 is operated to suck outside air into the air inlet component 21, the first filter screen 28 is arranged to protect the fan 26 and prevent overlarge outside impurities from entering the box body 1, when the air enters the box body 1, the air floats upwards from the port of the air inlet component 21 at the bottom, the impurities in the air are further filtered when the air passes through the second filter screen 37, and in order to avoid the second filter screen 37 being blocked by the overlarge impurities, the cleaning impeller 36 is arranged, the cleaning impeller 36 continuously rotates at the bottom end of the second filter screen 37 to remove the impurities filtered by the second filter screen 37; after the air suction device 2 and the dust removal device 3 work for a period of time, the air suction device 2 and the dust removal device 3 are stopped, then the water pressure pump 47 is started, at the moment, water in the box body 1 and dust precipitated at the bottom are collected by the dust collection disc 41 and then are guided into the water tank 43 through the sewage pipe 42, and because the water pressure pump 47 works all the time, a water circulation environment exists, most of water in the box body 1 flows through the water circulation device 4 once, and then impurities in the box body 1 can be left in the water circulation device 4 through the filtration of the third filter screen 48, so that the box body 1 can work better; when the work is finished, the water outlet pipe 7 at the bottom of the box body 1 is opened, and water is discharged.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.
Claims (7)
1. The utility model provides a dustproof respiratory that can be used to furniture workshop which characterized in that: the air suction device comprises a box body (1), an air suction device (2) and a dust removal device (3), wherein the air suction device (2) is arranged at the side end of the box body (1), the dust removal device (3) is arranged in the box body (1), and the air suction device (2) comprises an air inlet assembly (21), a first motor (22), a transmission assembly (23), a third gear (24), a fourth gear (25), a fan (26), a second shaft rod (27) and a first filter screen (28);
the air inlet component (21) is fixedly connected to the side end of the box body (1), a first motor (22) is fixedly connected to the top of the air inlet component (21), a fourth gear (25) is fixedly connected to the output end of the first motor (22), a transmission component (23) is rotatably connected to the side end of the fourth gear (25), a third gear (24) is rotatably connected to the bottom end of the transmission component (23), the third gear (24) is sleeved on the surface of a second shaft lever (27), a fan (26) is fixedly connected to the end portion of the second shaft lever (27), and a first filter screen (28) is fixedly connected to the port of the top of the air inlet component (21);
the dust removal device (3) comprises a second motor (31), a fifth gear (32), a sixth gear (33), a third shaft lever (34), a stabilizing cylinder (35), a cleaning impeller (36) and a second filter screen (37); second motor (31) rigid coupling is on the top of box (1), second motor (31) output rigid coupling has fifth gear (32), fifth gear (32) side rotates and is connected with sixth gear (33), sixth gear (33) cup joint on third axostylus axostyle (34), the inside rigid coupling of box (1) has a section of thick bamboo of stabilizing (35), third axostylus axostyle (34) run through set up inside stabilizing a section of thick bamboo (35), third axostylus axostyle (34) bottom rigid coupling has washing impeller (36), the inner wall rigid coupling of box (1) has second filter screen (37).
2. The dustproof breathing system for furniture production workshops according to claim 1, wherein: the bottom of the box body (1) is provided with a water circulating device (4), and the water circulating device (4) comprises a dust collection disc (41), a sewage pipe (42), a water tank (43), a box cover (44), a handle (45), a clear water pipe (46), a water pressure pump (47) and a third filter screen (48); the bottom rigid coupling of box (1) has dust absorption dish (41), the bottom rigid coupling of dust absorption dish (41) has sewage pipe (42), the side rigid coupling of sewage pipe (42) has water tank (43), water tank (43) top rigid coupling has case lid (44), inside handle (45) that is provided with of water tank (43), handle (45) and case lid (44) rigid coupling, handle (45) bottom rigid coupling has third filter screen (48), the side rigid coupling of water tank (43) has clean water pipe (46), water tank (43) side is provided with pressurized-water pump (47), clean water pipe (46) and water tank (43) looks rigid coupling are passed through to pressurized-water pump (47) bottom, clean water pipe (46) and box (1) looks rigid coupling are passed through on pressurized-water pump (47) top.
3. The dustproof breathing system for furniture production plants according to claim 2, wherein: the clean water pipe (46) is higher than the sewage pipe (42), and the third filter screen (48) is arranged in the middle of the sewage pipe (42) and the clean water pipe (46).
4. The dustproof breathing system for furniture production workshops according to claim 1, wherein: the air inlet assembly (21) comprises an air suction barrel (211), an air inlet pipe (212) and a one-way valve (213); intake pipe (212) rigid coupling is at the lateral wall of box (1), box (1) side is provided with check valve (213), check valve (213) bottom rigid coupling has intake pipe (212), check valve (213) top rigid coupling has intake pipe (212), intake pipe (212) top lateral wall department rigid coupling has aspiration channel (211).
5. The dustproof breathing system for furniture production workshops according to claim 1, wherein: the transmission assembly (23) comprises a first gear (231), a first shaft (232) and a second gear (233); the first gear (231) is fixedly connected to the top end of the first shaft lever (232), and the second gear (233) is fixedly connected to the bottom end of the first shaft lever (232).
6. The dustproof breathing system for furniture production plants according to claim 5, wherein: the bottom rigid coupling of box (1) has landing leg (5), the lateral wall rigid coupling of box (1) has inlet tube (6), the lateral wall of box (1) has outlet pipe (7) at the bottom rigid coupling that is located inlet tube (6), the lateral wall department rigid coupling of box (1) has outlet duct (8).
7. A dustproof breathing method for furniture production workshops is characterized by comprising the following steps: the method comprises the following steps:
s1: adding water from the water inlet pipe (6) until the water overflows the second filter screen (37), wherein when air enters the box body (1), the air can float upwards from the port of the air inlet assembly (21) at the bottom, and when the air passes through the second filter screen (37), impurities in the air can be further filtered, and the cleaning impeller (36) continuously rotates at the bottom end of the second filter screen (37) to remove the impurities filtered by the second filter screen (37);
s2: after the air suction device (2) and the dust removal device (3) work for a period of time, the air suction device (2) and the dust removal device (3) are stopped, then the water pressure pump (47) is started, at the moment, water in the box body (1) and dust precipitated at the bottom can be collected through the dust collection disc (41), and then are guided into the water tank (43) through the sewage pipe (42), the water in the box body (1) can flow through the water circulation device (4) once, and then is filtered through the third filter screen (48), impurities in the box body (1) are left in the water circulation device (4), and when the work is finished, the water outlet pipe (7) at the bottom of the box body (1) is opened, and the water is discharged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011113437.8A CN112263885A (en) | 2020-10-17 | 2020-10-17 | Dustproof breathing system and method for furniture production workshop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011113437.8A CN112263885A (en) | 2020-10-17 | 2020-10-17 | Dustproof breathing system and method for furniture production workshop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112263885A true CN112263885A (en) | 2021-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011113437.8A Pending CN112263885A (en) | 2020-10-17 | 2020-10-17 | Dustproof breathing system and method for furniture production workshop |
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| Country | Link |
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| CN (1) | CN112263885A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115949628A (en) * | 2023-03-10 | 2023-04-11 | 江苏恒康机电有限公司 | Air inlet cover for industrial fan and dustproof assembly thereof |
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| CN210546785U (en) * | 2019-08-19 | 2020-05-19 | 沈阳拓普电气设备有限公司 | Electrical equipment dust collector |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN206444387U (en) * | 2017-01-18 | 2017-08-29 | 河南润安建设集团有限公司 | A kind of architectural engineering gas purification cleaner |
| CN207980867U (en) * | 2018-02-06 | 2018-10-19 | 李�灿 | Safety of Coal Mine Production tunnel dust-extraction unit |
| CN208583127U (en) * | 2018-05-05 | 2019-03-08 | 新昌县金瓯新能源科技有限公司 | A kind of air deduster of portable |
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| CN115949628A (en) * | 2023-03-10 | 2023-04-11 | 江苏恒康机电有限公司 | Air inlet cover for industrial fan and dustproof assembly thereof |
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Application publication date: 20210126 |