CN215352609U - Steel rail welding smoke dust treatment device - Google Patents
Steel rail welding smoke dust treatment device Download PDFInfo
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- CN215352609U CN215352609U CN202121736209.6U CN202121736209U CN215352609U CN 215352609 U CN215352609 U CN 215352609U CN 202121736209 U CN202121736209 U CN 202121736209U CN 215352609 U CN215352609 U CN 215352609U
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- welding
- fixedly connected
- filter screen
- cigarette
- rigid coupling
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Abstract
The utility model discloses a steel rail welding smoke dust treatment device which comprises a welding smoke purification shell and a filtering structure, wherein the filtering structure comprises a coarse filtering net, the coarse filtering net is fixedly connected to the side wall of an inner cavity of the welding smoke purification shell, a collecting assembly is arranged at the top of the welding smoke purification shell, a fine filtering net is arranged at the bottom of the coarse filtering net, collecting box bodies are fixedly connected to two sides of the fine filtering net, a placing plate is arranged at the bottom of each collecting box body, the placing plate is fixedly connected to the side wall of the inner cavity of the welding smoke purification shell, a driving motor is fixedly connected to the side face of the welding smoke purification shell, and a threaded rod is fixedly connected to the output end of the driving motor. According to the utility model, welding fume can be filtered by the coarse filter screen and the fine filter screen, the coarse filter screen can be prevented from being blocked by the cleaning brush and other structures, the welding fume can be collected by the collecting assembly, the welding fume is prevented from polluting the environment, and meanwhile, the welding fume can be prevented from influencing the normal operation and physical and psychological health of workers.
Description
Technical Field
The utility model relates to the field of smoke treatment, in particular to a steel rail welding smoke treatment device.
Background
In recent years, with the rapid development of railway infrastructure in China, urban subway track construction is also continuously rising. In the field welding operation of subway rail construction, the field welding mode of the steel rail is advanced, thermite welding and gluing with low automation degree and unstable welding quality are changed into mobile flash welding with stable welding quality, and the mobile flash welding rail machine is gradually and widely applied to the current welding operation of the rail due to the factors of advanced technology, convenient operation, stable welding performance, reliable welding quality and the like.
At present, when the movable flash rail welding machine is used for welding steel rails, relevant harmful smoke can be generated, the smoke generated by welding can not be discharged in time, a smoke space with a large range is formed in the operation surface after accumulation and aggregation, the visible condition of the operation surface is reduced, and the normal operation and physical and mental health of workers can be endangered seriously. Therefore, a steel rail welding fume treatment device is provided aiming at the problems.
SUMMERY OF THE UTILITY MODEL
The device is administered to rail welding smoke dust that provides in this embodiment is used for solving the welding among the prior art and produces the smoke dust and can not in time discharge, accumulates the great smoke dust space of back formation scope in operation face department, causes the visual condition of operation face to descend, can endanger staff's normal work and physical and mental health problem when serious.
According to one aspect of the utility model, the steel rail welding smoke dust treatment device comprises a welding smoke purification shell and a filter structure, wherein the filter structure comprises a coarse filter screen, the coarse filter screen is fixedly connected to the side wall of an inner cavity of the welding smoke purification shell, a collection assembly is arranged at the top of the welding smoke purification shell, a fine filter screen is arranged at the bottom of the coarse filter screen, collection box bodies are fixedly connected to two sides of the fine filter screen, a placing plate is arranged at the bottom of each collection box body and fixedly connected to the side wall of the inner cavity of the welding smoke purification shell, a driving motor is fixedly connected to the side face of the welding smoke purification shell, a threaded rod is fixedly connected to the output end of the driving motor, the surface of the threaded rod is in threaded connection with a sliding plate, the sliding plate is slidably connected to the surface of a limiting column, the limiting column is fixedly connected to the side wall of the inner cavity of the welding smoke purification shell, and a cleaning brush is fixedly connected to the bottom of the sliding plate.
Further, it has the slip wheelset to weld the equal rigid coupling of cigarette purification casing bottom four corners department, it openly articulates there is the clearance door to weld the cigarette purification casing, collect the box body and keep away from one side of welding the cigarette purification casing and seted up the collection mouth, weld the cigarette and purify casing bottom and set up a plurality of evenly distributed's discharge hole.
Further, it has seted up the mouth that rotates to weld cigarette purification casing one side, it is provided with seal assembly to rotate mouth department, threaded rod one end runs through and rotates the mouth and rotate to be connected in welding cigarette purification casing inner chamber lateral wall, welding cigarette purification casing inner chamber lateral wall rigid coupling has two symmetric distribution's spacing post.
Further, the collecting assembly comprises a first collecting pipe fixedly connected to the top of the welding smoke purification shell, the inner wall of the first collecting pipe is fixedly connected with a flame arrester, the top of the first collecting pipe is fixedly connected with a connecting pipe, one end of the connecting pipe is fixedly connected with a second collecting pipe, and one end of the second collecting pipe is fixedly connected with a dust collection cover.
Further, including purifying the subassembly, purify the subassembly and include high efficiency filter core, high efficiency filter core rigid coupling is in welding the cigarette and purifying casing inner chamber lateral wall, high efficiency filter core below is provided with the division board, the division board rigid coupling is in welding the cigarette and purifying casing inner chamber lateral wall, division board top rigid coupling oxidation catalyst converter, division board bottom rigid coupling deodorization subassembly, deodorization subassembly below is provided with the honeycomb duct, the honeycomb duct rigid coupling is in welding cigarette and purifying casing inner chamber bottom, honeycomb duct inner chamber lateral wall rigid coupling active carbon filter screen, active carbon filter screen below is provided with the fan, the fan rigid coupling is in honeycomb duct inner chamber lateral wall.
Further, weld the equal rigid coupling of cigarette purification casing both sides inner wall and have a plurality of division board, just both sides the division board is not in on same horizontal plane, the length of division board is greater than and welds half of cigarette purification casing length.
According to the embodiment of the utility model, the welding fume is collected and purified by adopting the structures such as the coarse filter screen and the dustproof collection cover, so that the problems that the visible condition of the operation surface is reduced and the normal operation and the physical and mental health of workers are endangered in serious cases due to the fact that the smoke generated by welding cannot be discharged in time and a smoke space with a large range is formed at the operation surface after accumulated and gathered are solved, the welding fume is convenient to collect and treat, and the environment pollution and the physical and mental health of the workers are prevented from being harmed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is an overall perspective view of one embodiment of the present invention;
FIG. 2 is an overall internal schematic view of one embodiment of the present invention;
FIG. 3 is a schematic top view of a filter structure according to an embodiment of the present invention;
fig. 4 is a partially enlarged view of a portion a in fig. 2 according to an embodiment of the utility model.
In the figure: 1. weld cigarette and purify casing, 2, coarse filtration net, 3, thin filter screen, 4, collect the box body, 5, place the board, 6, driving motor, 7, threaded rod, 8, sliding plate, 9, spacing post, 10, the brush cleaner, 11, first collecting pipe, 12, the spark arrester, 13, the connecting pipe, 14, the second collecting pipe, 15, dustproof collection cover, 16, high efficiency filter core, 17, the division board, 18, oxidation catalyst converter, 19, deodorization subassembly, 20, the honeycomb duct, 21, the active carbon filter screen, 22, the fan.
Detailed Description
In order to make the technical solutions of the present invention better understood, 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.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances in order to facilitate the description of the embodiments of the utility model herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "center", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the utility model and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.
Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
The treatment device in this embodiment may be applied to various welding apparatuses, for example, the following flash butt welding machine is provided in this embodiment, and the treatment device in this embodiment may be used for the following flash butt welding machine.
The flash butt welding machine comprises a frame, wherein the upper end face of the frame is fixedly connected with a workbench, the upper end face of the workbench is provided with two hydraulic cylinders, the output ends of the two hydraulic cylinders can be detachably connected with output shafts, the lower ends of the two output shafts penetrate through the workbench and extend into the workbench, the lower end faces of the two output shafts are detachably connected with a mounting seat, the lower end face of the mounting seat is embedded with a first fixing block, the lower end face of the first fixing block is provided with two upper electrodes, the upper end face of the frame is provided with a second fixing block, the upper end face of the second fixing block is provided with two lower electrodes matched with the upper electrodes, the left side and the right side of the workbench are respectively provided with an air cylinder, the output ends of the two air cylinders can be detachably connected with connecting rods, the opposite ends of the two connecting rods penetrate through the workbench and extend into the workbench, and the opposite ends of the two connecting rods can be detachably connected with extrusion blocks, the front end face of the workbench is detachably connected with a splash cover, and a handle is installed on the front end face of the splash cover. In the embodiment, when a welding part needs to be welded, the handle is pulled to open the splash-proof cover, the welding part is placed at the upper ends of the two lower electrodes, the two hydraulic cylinders are started to drive the two upper electrodes to be tightly attached to the upper end face of the welding part, the handle is pulled to further drive the splash-proof cover to be in a closed state, the two upper electrodes and the two lower electrodes are started, the welding power supply supplies power to the two upper electrodes and the two lower electrodes, the two upper electrodes and the two lower electrodes are in contact with the joint of the welding part and are melted after being heated by resistance, the welding part is heated by repeated electrification to enable the welding part to flash, meanwhile, the splash-proof cover prevents welding sparks from flying out of the workbench, when the welding part of the welding part reaches a proper melting temperature, the two air cylinders are started, and the two air cylinders drive the extrusion blocks to extrude the two ends of the welding part, after extruding for a certain time, welding of the welding part is completed, so that the spark flying caused by welding in the welding process is avoided, the working environment is polluted, the body of a worker is easily injured, the physical consumption of the worker caused by continuously and rapidly escaping from the workbench is reduced, and the safety of the flash welding machine in the welding process is improved.
Of course, the present embodiment can be used for welding equipment with other structures. Here, description is not repeated, and the treatment device according to the embodiment of the present invention is described below.
Referring to fig. 1-4, a device for treating welding fume of steel rails comprises a welding fume purification shell 1 and a filtering structure, wherein the filtering structure comprises a coarse filter screen 2, the coarse filter screen 2 is fixedly connected to the side wall of the inner cavity of the welding fume purification shell 1, a collecting component is arranged at the top of the welding fume purification shell 1, a fine filter screen 3 is arranged at the bottom of the coarse filter screen 2, a collecting box body 4 is fixedly connected to both sides of the fine filter screen 3, a placing plate 5 is arranged at the bottom of the collecting box body 4, the placing plate 5 is fixedly connected to the side wall of the inner cavity of the welding fume purification shell 1, a driving motor 6 is fixedly connected to the side surface of the welding fume purification shell 1, a threaded rod 7 is fixedly connected to the output end of the driving motor 6, a sliding plate 8 is in threaded connection with the surface of the threaded rod 7, the sliding plate 8 is slidably connected to the surface of a limiting column 9, the limiting column 9 is fixedly connected to the side wall of the inner cavity of the welding fume purification shell 1, the bottom of the sliding plate 8 is fixedly connected with a cleaning brush 10.
Can filter the welding cigarette by fine filtration net 3 isotructure through coarse filtration net 2, can prevent through scrubbing brush 10 isotructures that coarse filtration net 2 from blockking up, can collect welding the cigarette through collecting the subassembly, prevent to weld cigarette polluted environment, can prevent to weld cigarette influence staff's normal operation and physical and mental health simultaneously.
The four corners of the bottom of the welding fume purification shell 1 are fixedly connected with sliding wheel sets, the front surface of the welding fume purification shell 1 is hinged with a cleaning door, one side of the collection box body 4, which is far away from the welding fume purification shell 1, is provided with a collection port, the bottom of the welding fume purification shell 1 is provided with a plurality of uniformly distributed discharge holes, and the welding fume purification shell 1 can be conveniently moved through the sliding wheel sets; a rotating opening is formed in one side of the welding fume purification shell 1, a sealing assembly is arranged at the rotating opening, one end of the threaded rod 7 penetrates through the rotating opening and is rotatably connected to the side wall of the inner cavity of the welding fume purification shell 1, two limiting columns 9 which are symmetrically distributed are fixedly connected to the side wall of the inner cavity of the welding fume purification shell 1, and the moving tracks of the sliding plate 8 and the cleaning brush 10 can be limited through the limiting columns 9, so that the cleaning brush 10 is more stable during moving; the collecting assembly comprises a first collecting pipe 11, the first collecting pipe 11 is fixedly connected to the top of the welding fume purification shell 1, the inner wall of the first collecting pipe 11 is fixedly connected with a flame arrester 12, the top of the first collecting pipe 11 is fixedly connected with a connecting pipe 13, one end of the connecting pipe 13 is fixedly connected with a second collecting pipe 14, one end of the second collecting pipe 14 is fixedly connected with a dustproof collecting cover 15, the dustproof collecting cover 15 comprises a telescopic frame at the top of a dustproof cover and a heat insulation plate of the dustproof cover, when the collecting assembly is used, the telescopic frame at the top avoids the increase of the disassembling workload due to the flexibility, the heat insulation plate of the dustproof cover is manufactured by carrying out closed installation in the front, back, left and right directions, so that the leakage of smoke dust during welding operation is prevented, the welding fume can be collected through the collecting assembly, and the welding fume is guided into the welding fume purification shell 1 for treatment; comprises a purification component, the purification component comprises a high-efficiency filter core 16, the high-efficiency filter core 16 is fixedly connected with the side wall of the inner cavity of the welding fume purification shell 1, a partition plate 17 is arranged below the high-efficiency filter element 16, the partition plate 17 is fixedly connected with the side wall of the inner cavity of the welding fume purification shell 1, the top of the partition plate 17 is fixedly connected with an oxidation catalyst 18, the bottom of the partition plate 17 is fixedly connected with a deodorization assembly 19, the deodorization assembly 19 is composed of an ultraviolet lamp and a carbon dioxide coating plate, can deodorize the welding fume, a flow guide pipe 20 is arranged below the deodorization component 19, the flow guide pipe 20 is fixedly connected with the bottom of the inner cavity of the welding fume purification shell 1, the side wall of the inner cavity of the draft tube 20 is fixedly connected with an active carbon filter screen 21, a fan 22 is arranged below the active carbon filter screen 21, the fan 22 is fixedly connected with the side wall of the inner cavity of the draft tube 20, the welding fume can be purified through the purification assembly, so that the welding fume is prevented from influencing the normal operation and physical and psychological health of workers; weld the equal rigid coupling in cigarette purification casing 1 both sides inner wall and have a plurality of division board 17, just both sides division board 17 is not in on the same horizontal plane, division board 17's length is greater than the half of welding cigarette purification casing 1 length, can make through division board 17 to weld the cigarette fully with oxidation catalyst converter 18 and deodorant subassembly 19 contact.
When the utility model is used, electrical elements appearing in the utility model are externally connected with a power supply and a control switch when in use, firstly welding smoke is collected through a dustproof collecting cover 15, then the welding smoke is led into a welding smoke purifying shell 1 for treatment through a second collecting pipe 14, a connecting pipe 13 and a first collecting pipe 11 in sequence, meanwhile, welding sparks can be stopped through a flame arrester 12, then the welding smoke is preliminarily filtered through a coarse filter screen 2 and a fine filter screen 3, impurities with larger particles are stopped, then a drive motor 6 is used for driving a threaded rod 7 to rotate, so that a sliding plate 8 is driven to move along a limiting column 9, a cleaning brush 10 is driven to move, the cleaning brush 10 is driven to clean the surface of the coarse filter screen 2, the impurities stopped at the coarse filter screen 2 are cleaned into a collecting box body 4, and when the cleaning brush 10 moves, a part of the impurities can pass through filtering holes of the coarse filter screen 2, can collect the impurity that drops through fine filter screen 3 this moment, then can take out collection box body 4 through the clearance door, impurity in collecting box body 4 is cleared up, it passes through high efficiency filter core 16 to weld the cigarette after coarse filter screen 2 and fine filter screen 3 filter, high efficiency filter core 16 can be to keeping small smog dust particle in the cigarette of welding, then catalyze the cigarette of welding through oxidation catalyst 18, carbon monoxide oxidation becomes carbon dioxide, can get rid of the stink in the cigarette of welding through deodorization subassembly 19 this moment, carry out further absorption through active carbon filter screen 21 and purify at last, then discharge through fan 22 and discharge hole, thereby purify the cigarette of welding, prevent to weld the cigarette and influence staff's normal operation and physical and mental health.
The utility model has the advantages that:
1. the welding fume collecting device is simple to operate, welding fume can be filtered through the coarse filter screen and the fine filter screen, the coarse filter screen can be prevented from being blocked through the cleaning brush and the like, the welding fume can be collected through the collecting assembly, the welding fume is prevented from polluting the environment, and meanwhile, the welding fume can be prevented from influencing the normal operation and physical and mental health of workers;
2. the welding fume purification device is compact in structure, welding fume can be filtered through the high-efficiency filter element, the welding fume can be purified through the structures such as the oxidation catalyst, the deodorization assembly and the like, and the welding fume can be adsorbed and purified through the activated carbon filter screen, so that the welding fume purification effect is better.
It is well within the skill of those in the art to implement and protect the present invention without undue experimentation and without undue experimentation that the present invention is directed to software and process improvements.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a device is administered to rail welding smoke and dust which characterized in that: comprises a welding fume purification shell (1) and a filtering structure, wherein the filtering structure comprises a coarse filter screen (2), the coarse filter screen (2) is fixedly connected with the inner cavity side wall of the welding fume purification shell (1), a collecting component is arranged at the top of the welding fume purification shell (1), a fine filter screen (3) is arranged at the bottom of the coarse filter screen (2), collecting box bodies (4) are fixedly connected with the two sides of the fine filter screen (3), a placing plate (5) is arranged at the bottom of the collecting box bodies (4), the placing plate (5) is fixedly connected with the inner cavity side wall of the welding fume purification shell (1), a driving motor (6) is fixedly connected with the side surface of the welding fume purification shell (1), a threaded rod (7) is fixedly connected with the output end of the driving motor (6), the surface of the threaded rod (7) is in threaded connection with a sliding plate (8), and the sliding plate (8) is slidably connected with the surface of a spacing column (9), the limiting column (9) is fixedly connected to the side wall of the inner cavity of the welding smoke purification shell (1), and the bottom of the sliding plate (8) is fixedly connected with a cleaning brush (10).
2. The steel rail welding fume treatment device according to claim 1, characterized in that: weld the equal rigid coupling of cigarette purification casing (1) bottom four corners department and have the slip wheelset, it openly articulates there is the clearance door to weld cigarette purification casing (1), collect box body (4) and keep away from one side of welding cigarette purification casing (1) and seted up the collection mouth, weld cigarette purification casing (1) bottom and set up a plurality of evenly distributed's discharge hole.
3. The steel rail welding fume treatment device according to claim 1, characterized in that: it has seted up the mouth that rotates to weld cigarette purification casing (1) one side, it is provided with seal assembly to rotate mouth department, threaded rod (7) one end is run through and is rotated the mouth and rotate and connect in welding cigarette purification casing (1) inner chamber lateral wall, it has spacing post (9) of two symmetric distributions to weld cigarette purification casing (1) inner chamber lateral wall rigid coupling.
4. The steel rail welding fume treatment device according to claim 1, characterized in that: the collecting assembly comprises a first collecting pipe (11), the first collecting pipe (11) is fixedly connected to the top of the welding smoke purifying shell (1), the inner wall of the first collecting pipe (11) is fixedly connected with a flame arrester (12), the top of the first collecting pipe (11) is fixedly connected with a connecting pipe (13), one end of the connecting pipe (13) is fixedly connected with a second collecting pipe (14), and one end of the second collecting pipe (14) is fixedly connected with a dust-proof collecting cover (15).
5. The steel rail welding fume treatment device according to claim 1, characterized in that: including purifying the subassembly, purify the subassembly and include high efficiency filter core (16), high efficiency filter core (16) rigid coupling is in welding the cigarette and purifying casing (1) inner chamber lateral wall, high efficiency filter core (16) below is provided with division board (17), division board (17) rigid coupling is in welding the cigarette and purifying casing (1) inner chamber lateral wall, division board (17) top rigid coupling oxidation catalyst converter (18), division board (17) bottom rigid coupling deodorization subassembly (19), deodorization subassembly (19) below is provided with honeycomb duct (20), honeycomb duct (20) rigid coupling is in welding cigarette and purifying casing (1) inner chamber bottom, honeycomb duct (20) inner chamber lateral wall rigid coupling active carbon filter screen (21), active carbon filter screen (21) below is provided with fan (22), fan (22) rigid coupling is in honeycomb duct (20) inner chamber lateral wall.
6. The steel rail welding fume treatment device according to claim 5, wherein: weld the equal rigid coupling in cigarette purification casing (1) both sides inner wall and have a plurality of division board (17), just both sides division board (17) are not in on same horizontal plane, the length of division board (17) is greater than the half of welding cigarette purification casing (1) length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121736209.6U CN215352609U (en) | 2021-07-28 | 2021-07-28 | Steel rail welding smoke dust treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121736209.6U CN215352609U (en) | 2021-07-28 | 2021-07-28 | Steel rail welding smoke dust treatment device |
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| Publication Number | Publication Date |
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| CN215352609U true CN215352609U (en) | 2021-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121736209.6U Expired - Fee Related CN215352609U (en) | 2021-07-28 | 2021-07-28 | Steel rail welding smoke dust treatment device |
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| CN (1) | CN215352609U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116899347A (en) * | 2023-09-12 | 2023-10-20 | 全风环保科技股份有限公司 | Automatic dust remover and dust removing method |
-
2021
- 2021-07-28 CN CN202121736209.6U patent/CN215352609U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116899347A (en) * | 2023-09-12 | 2023-10-20 | 全风环保科技股份有限公司 | Automatic dust remover and dust removing method |
| CN116899347B (en) * | 2023-09-12 | 2023-12-15 | 全风环保科技股份有限公司 | Automatic dust remover and dust removing method |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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