Tubular cathode wire and external self-cleaning device thereof

Abstract

The invention discloses a tubular cathode wire and an external self-cleaning device thereof.The tubular cathode wire comprises a plurality of cathode wire bodies arranged in a dust removal cylinder, the cathode wire bodies are evenly distributed in an array mode, a positioning cylinder is installed at the lower end of each cathode wire body, and hollowed-out limiting plates are installed on the peripheries of the two ends of each positioning cylinder; the dust removal device comprises supporting boxes arranged on the two sides of the dust removal cylinder, a first sliding table is installed at the top of the inner side of each supporting box, a second sliding table is installed on the lower portion of a sliding block of each first sliding table, and a plurality of limiting sliding grooves are formed in the periphery of each hollowed-out limiting plate, a plurality of limiting plate springs are installed on the periphery of the middle of the positioning cylinder, and limiting scraping plates are installed at the ends of the limiting plate springs. The first power box is installed on one side of the sliding block of the second sliding table, the first supporting box is installed on one side of the first power box, the electric dust remover can be installed by modifying an existing electric dust remover, the modifying and installing difficulty is lowered, the overall modifying cost is lowered, and waste caused by a large number of scrapped devices is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of dust removal equipment, in particular to a tubular cathode wire and an external self-cleaning device thereof. Background Art

[0002] The electrostatic precipitator includes an electric field in which anode plates and cathode wires are arranged. An electric field is formed between the relatively arranged anode plates. The particles in the airflow are charged under the discharge action of the cathode wires, and then move toward the anode plates in the electric field based on the electric field force, and are then captured.

[0003] The application document with publication number CN118477755A discloses a wet electrostatic precipitator, including a dust removal box, a filter box, a smoke inlet pipe, an anode tube, a nozzle and a water collection tank; it also includes a purification unit arranged in the filter box, which filters a water flow containing particulate matter through the filter box to intercept some harmful particulate matter in the water flow. After interception, the particulate matter is blocked above, and the water flow falls into the bottom of the filter box. Then, the driving component drives the cleaning and scraping component to clean and scrape the intercepted particulate matter, and these harmful particulate matter are concentratedly accumulated, and then the staff will carry out unified cleaning.

[0004] The above device has the following shortcomings: the above device cannot remove the attachments on the cathode wire, which easily causes the thorns of the cathode wire to grow larger, reducing the overall dust removal efficiency; and the above device cannot completely remove the attachments on the cathode wire and the dust collecting plate when in use, and still requires manual removal and thorough cleaning. Summary of the invention

[0005] The purpose of the present invention is to provide a tubular cathode wire and an external self-cleaning device thereof to improve the overall working efficiency in view of the above-mentioned problems and shortcomings.

[0006] The present invention solves at least one of the following technical problems:

[0007] (1) The above device cannot remove the attachments on the cathode line, which easily leads to the hypertrophy of the thorns on the cathode line and reduces the overall dust removal efficiency;

[0008] (2) When the above device is in use, the attachments on the cathode wire and the dust collecting plate cannot be completely removed, and manual removal and thorough cleaning are still required.

[0009] The object of the present invention can be achieved through the following technical scheme: a tubular cathode wire, comprising a cathode wire body arranged in a dust removal cylinder, the cathode wire bodies are provided with a plurality of cathode wire bodies and are evenly distributed in an array, a positioning cylinder is installed at the lower end of the cathode wire body, hollow limit plates are installed at the outer peripheries of both ends of the positioning cylinder, a plurality of limit slide grooves are opened on the outer periphery of the hollow limit plate, a plurality of limit leaf springs are installed at the middle outer periphery of the positioning cylinder, a limit scraper is installed at the end of the limit leaf spring, a transmission bevel is installed in the middle of both sides of the limit scraper, a clamping slide block is installed on both sides of the tip of the transmission bevel, a clamping slide groove is opened on both side walls of the limit slide groove, the clamping slide block is slidably connected to the clamping slide groove, and a plurality of hollow air holes are opened through the hollow limit plate.

[0010] As a further solution of the invention, the cathode wire body is provided with several limiting slide grooves evenly distributed in an array, and several limiting slide grooves are evenly distributed in a circular array, and the limiting slide grooves on the upper and lower sides correspond to each other, and each limiting leaf spring corresponds one by one to the limiting slide grooves on the upper and lower sides.

[0011] As a further solution of the invention, the tip of the transmission bevel block is slidably connected in the corresponding limiting slide groove, one side of the clamping slider is flush with the inclined surface of the transmission bevel block, and each hollow air hole is evenly and staggeredly distributed with the limiting slide groove.

[0012] As a further solution of the invention, several dust collecting pipes are installed in the dust removal cylinder. The cathode wire body corresponds to the dust collecting pipe one by one and is passed through the middle of the inner side thereof. The cross-section of the dust collecting pipe is a regular hexagon. Several dust collecting pipes are evenly distributed in an array and adjacent side walls are sealed and connected.

[0013] As a further solution of the invention, the outer peripheral contour of the hollow limit plate is a regular hexagon and maintains a uniform gap with the inner wall of the dust collecting pipe. There are six limit slide grooves, limit leaf springs, limit scrapers and hollow air holes. The outer edge of the limit scraper is as wide as the inner wall side length of the dust collecting pipe.

[0014] An external self-cleaning device, used for cleaning the tubular cathode wire of claim or any one of claims, comprises a support box arranged on both sides of a dust removal cylinder, a first slide is installed on the inner top of the support box, a second slide is installed on the lower part of the slider of the first slide, a first power box is installed on one side of the slider of the second slide, a first support box is installed on one side of the first power box, a second power box is installed on the lower part of the first power box, a second support box is installed on the lower part of the first support box, a cleaning brush cylinder is provided on one side of the second support box in the first support box, a support slide rod is installed on the inner bottom of the support box, the second power box is slidably connected to the support slide rod, and through grooves are opened on both sides of the dust removal cylinder, and the through grooves connect the support box and the dust removal cylinder.

[0015] As a further solution of the invention, a drive motor is provided in the first power box and the second power box, the first power box is slidably connected to the installed drive motor, the sliding end of the second slide is fixedly connected to the corresponding drive motor, and a transmission box is provided in the first support box and the second support box, the first support box is slidably connected to the installed transmission box, and the drive motor is fixedly connected to the transmission box.

[0016] As a further scheme of the invention, a first transmission shaft is rotatably connected to the middle part of the inner side of the transmission box, and the first transmission shaft is fixedly connected to the driving shaft of the driving motor. A number of second transmission shafts are provided on both sides of the first transmission shaft, and the second transmission shafts are rotatably connected to the transmission box. The first transmission shaft and the second transmission shaft are evenly distributed at equal distances, and the first transmission shaft and the second transmission shaft are mutually transmitted through a chain transmission frame, and the first transmission shaft and the second transmission shaft are both fixedly connected to the corresponding cleaning brush cylinder.

[0017] As a further scheme of the invention, a third slide is embedded in the side wall of the dust collector, a sealing sliding sleeve is connected with a sealing positioning plate in the dust collector, the sealing positioning plate is connected to the sliding end of the third slide, a first positioning frame is installed on the lower side of the sealing positioning plate, a water spray pipe network is installed on the first positioning frame, a plurality of pairs of cleaning nozzles are installed on the water spray pipe network, and the plurality of pairs of cleaning nozzles correspond one by one to the dust collecting pipes.

[0018] As a further solution of the invention, a second positioning frame is installed on the lower side of the first positioning frame, and a conductive pipe network is installed on the second positioning frame. The conductive pipe network is fixedly connected to the upper end of each cathode line body and electrically connected. An exhaust pipe outlet is connected to one side of the dust removal cylinder and close to the upper end of the dust collecting pipe.

[0019] Beneficial effects of the present invention:

[0020] (1) The cleaning brush cylinder is used to fully clean all parts of the tubular cathode wire, which can greatly improve the cleanliness of the tubular cathode wire, avoid the hypertrophy of the thorns of the tubular cathode wire, and eliminate attachments. During cleaning, each tubular cathode wire is moved as a whole through the third slide, passes through the dust collecting pipe and out, which is convenient for the discharge of liquid after cleaning. The cleaning brush cylinder is moved by the first slide and the second slide to improve the cleaning effect. At the same time, it is convenient to reset the tubular cathode wire after cleaning. The present invention can be modified and installed on the existing electrostatic precipitator, which reduces the difficulty of modification and installation, reduces the overall modification cost, and avoids the waste caused by large-scale scrapping of equipment;

[0021] (2) The hollow limit plate is set to prevent the lower ends of the cathode wire body from abutting against each other to cause accidents. The limit scraper and the limit leaf spring are used to further limit the cathode wire body to prevent shaking. At the same time, when the limit scraper passes through the dust collecting pipe, the limit leaf spring pushes the limit scraper to abut against the inner wall of the dust collecting pipe, so that the limit scraper scrapes and cleans the inner wall of the dust collecting pipe, further keeping the cleanliness of various components during the electrostatic precipitator process and preventing the adhesion and accumulation of fine dust impurities;

[0022] (3) During operation, the conductive pipe network and the water spraying pipe network can not only supply power and spray water in the prior art to flush the fine dust adsorbed by the electrostatic precipitator on the inner wall of the dust collecting pipe, but also cooperate with the cleaning brush to spray cleaning liquid to react with the attachments on the various thorns of the cathode line body to further carry out the cleaning process. Both the water containing fine dust and the cleaning liquid containing impurities are discharged through the existing sewage discharge channel of the electrostatic precipitator. When the limit scraper moves down and resets, the dust collecting pipe is scraped and cleaned again. The water spraying pipe network sprays water again so that the debris on the limit scraper is discharged with the water flow, thereby completely completing the cleaning work. The present invention can be modified with the help of a large number of existing structures. The added components will not affect the operation of the existing structures, and can promote the effect of the electrostatic precipitator process, extend the working life of important components of the electrostatic precipitator, and save a lot of manpower and material resources consumed by manual dismantling and cleaning, thereby improving the overall work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0024] Figure 1 It is a top view of the overall structure of the cathode line body of the present invention;

[0025] Figure 2 It is a side view of the partial structure of the cathode line body of the present invention;

[0026] Figure 3 A side view of the internal structure of the external self-cleaning device of the present invention during dust removal;

[0027] Figure 4 It is a side view of the partial structure of the external self-cleaning device of the present invention;

[0028] Figure 5 A side view of the internal structure of the external self-cleaning device of the present invention during cleaning;

[0029] Figure 6 for Figure 5 A magnified schematic diagram of the middle A area;

[0030] Figure 7 A top view of the internal structure of the first support box of the present invention;

[0031] In the figure: 101, cathode wire body; 102, hollow limit plate; 103, limit slide; 104, limit leaf spring; 105, limit scraper; 106, transmission inclined block; 107, clamping slide; 108, clamping slider; 109, hollow air hole; 110, positioning cylinder; 201, dust removal cylinder; 202, support box; 203, first slide; 204, second slide; 205, first power box; 206, first support box; 207, drive motor; 208, transmission Drive box; 209, first transmission shaft; 210, second transmission shaft; 211, chain transmission frame; 212, cleaning brush cylinder; 213, support slide bar; 214, second power box; 215, second support box; 216, through groove; 301, third slide; 302, sealing positioning plate; 303, first positioning frame; 304, water spray pipe network; 305, cleaning nozzle; 306, second positioning frame; 307, conductive pipe network; 308, dust collecting pipe; 309, exhaust pipe outlet. DETAILED DESCRIPTION

[0032] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0033] See also Figure 1-7 As shown: a tubular cathode wire, including a cathode wire body 101 arranged in a dust removal cylinder 201, the cathode wire body 101 is provided with a plurality of and evenly distributed in an array, a positioning cylinder 110 is installed at the lower end of the cathode wire body 101, and hollow limiting plates 102 are installed at the outer peripheries of both ends of the positioning cylinder 110, and a plurality of limiting slide grooves 103 are opened on the outer periphery of the hollow limiting plate 102, and the plurality of limiting slide grooves 103 are evenly distributed in a circular array, and the limiting slide grooves 103 on the upper and lower sides correspond to each other, and a plurality of limiting leaf springs 104 are installed on the outer periphery of the middle part of the positioning cylinder 110, and each limiting leaf spring 104 corresponds one by one to the limiting slide grooves 103 on the upper and lower sides , a limiting scraper 105 is installed at the end of the limiting leaf spring 104, and a transmission bevel 106 is installed in the middle of both sides of the limiting scraper 105. The tip of the transmission bevel 106 is slidably connected in the corresponding limiting slide groove 103, and a clamping slider 108 is installed on both sides of the tip of the transmission bevel 106. The groove walls on both sides of the limiting slide groove 103 are provided with a clamping slide groove 107. One side of the clamping slider 108 is flush with the inclined surface of the transmission bevel 106. The clamping slider 108 is slidably connected with the clamping slide groove 107. A plurality of hollow air holes 109 are opened through the hollow limiting plate 102, and each hollow air hole 109 is evenly staggered with the limiting slide groove 103;

[0034] When the present embodiment is working, the bottom of the cathode line body 101 maintains its own limit through the hollow limit plate 102, the limit leaf spring 104 and the limit scraper 105. When loading, the adjacent limit scrapers 105 abut against each other, and the generated reaction makes the bottoms of each cathode line body 101 maintain a fixed distance from each other. When moving in the dust collecting tube 308, the transmission inclined block 106 on the same side of the moving direction first contacts the side wall of the dust collecting tube 308, so that the limit scraper 105 automatically adapts to the inner side spacing of the dust collecting tube 308, and at the same time compresses the limit leaf spring 104 to generate elastic force, so that the limit scraper 105 is closely attached to the inner side wall of the dust collecting tube 308, and scrapes the inner wall of the dust collecting tube 308 with the overall movement, thereby eliminating the attachments generated on the inner wall of the dust collecting tube 308 due to the electrostatic precipitator, and after moving down, the scraped attachments are taken away with the water flow of the water spraying component of the device itself;

[0035] When the limiting leaf spring 104 contracts and expands, the limiting scraper 105 moves accordingly, and the engaging slider 108 slides in the engaging slide groove 107 and limits the moving track of the limiting scraper 105, so that the limiting scraper 105 moves accurately along the radial direction.

[0036] An external self-cleaning device, used for cleaning the above-mentioned tubular cathode line, comprises a support box 202 arranged on both sides of a dust removal cylinder 201, a first slide 203 is installed on the inner top of the support box 202, a second slide 204 is installed at the lower part of the slider of the first slide 203, a first power box 205 is installed on one side of the slider of the second slide 204, a first support box 206 is installed on one side of the first power box 205, a second power box 214 is installed at the lower part of the first power box 205, a second support box 215 is installed at the lower part of the first support box 206, a cleaning brush cylinder 212 is provided on one side of the first support box 206 and the second support box 215, a support slide bar 213 is installed at the inner bottom of the support box 202, the second power box 214 is slidably connected to the support slide bar 213, and a through groove 216 is opened through both sides of the dust removal cylinder 201, and the through groove 216 connects the support box 202 and the dust removal cylinder 201;

[0037] When the present embodiment is working, when the tubular cathode wire needs to be cleaned, the tubular cathode wire evenly arranged in an array stays between the two through grooves 216, and then the support boxes 202 on both sides are started synchronously, so that the first slide 203 drives the two second slides 204 to move closer to the center, and then the various components of the tubular cathode wire are cleaned by the cleaning brush cylinder 212. During cleaning, the lower surface of the limiting scraper 105 and other components at the bottom of the tubular cathode wire is cleaned by the cleaning brush cylinder 212 on one side of the second support box 215, and the upper surface of the limiting scraper 105 and other components and the cathode wire body 101 are cleaned by the cleaning brush cylinder 212 on one side of the first support box 206. The cleaning liquid and water are sprayed by the water spraying component of the dust collector itself, and the first slide 203 and the second slide 204 move to adjust the position and movement trajectory of the cleaning brush cylinder 212, thereby ensuring the cleaning effect.

[0038] A plurality of dust collecting tubes 308 are installed in the dust collecting cylinder 201, the cathode line body 101 corresponds to the dust collecting tube 308 one by one and is arranged in the middle of the inner side thereof, the cross section of the dust collecting tube 308 is a regular hexagon, the plurality of dust collecting tubes 308 are evenly distributed in an array and the adjacent side walls are sealed and connected, the outer peripheral contour of the hollow limiting plate 102 is a regular hexagon and maintains a uniform gap with the inner side wall of the dust collecting tube 308, the limiting slide groove 103, the limiting leaf spring 104, the limiting scraper 105 and the hollow air hole 109 are each provided with six, and the outer edge of the limiting scraper 105 is as wide as the inner wall side length of the dust collecting tube 308;

[0039] When the present embodiment is working, the dust collecting tube 308 and the tubular cathode wire are evenly distributed in a regular hexagonal array. When the limiting leaf spring 104 contracts and the limiting scrapers 105 gather together, the adjacent ends of the limiting scrapers 105 abut against each other to form a scraping frame. The scraping frame is adapted to the inner wall size of the dust collecting tube 308, so that it is convenient to scrape and clean the inner wall of the dust collecting tube 308 when the scraper 105 moves. The limiting scrapers 105 behind the dust collecting tube 308 are reset and abut against each other under the push of the elastic force of the limiting leaf spring 104, thereby positioning the bottom of the tubular cathode wire to avoid shaking during dust removal. The hollow air holes 109 avoid obstructing the passage of airflow containing fine dust.

[0040] The first power box 205 and the second power box 214 are both provided with a driving motor 207, the first power box 205 is slidably connected to the installed driving motor 207, the sliding end of the second slide 204 is fixedly connected to the corresponding driving motor 207, the first support box 206 and the second support box 215 are both provided with a transmission box 208, the first support box 206 is slidably connected to the installed transmission box 208, the driving motor 207 is fixedly connected to the transmission box 208, and the middle part of the inner side of the transmission box 208 is rotatably connected to the first transmission box 208. The first transmission shaft 209 is fixedly connected to the driving shaft of the driving motor 207. A plurality of second transmission shafts 210 are provided on both sides of the first transmission shaft 209. The second transmission shaft 210 is rotatably connected to the transmission box 208. The first transmission shaft 209 and the second transmission shaft 210 are evenly distributed at equal distances. The first transmission shaft 209 and the second transmission shaft 210 are mutually transmitted through the chain transmission frame 211. The first transmission shaft 209 and the second transmission shaft 210 are fixedly connected to the corresponding cleaning brush cylinder 212.

[0041] When this embodiment is working, the driving motor 207 in the second power box 214 drives the transmission box 208, the first transmission shaft 209, the second transmission shaft 210, the chain transmission frame 211 and the corresponding cleaning brush cylinder 212 in the second support box 215 to clean the lower surface of the limiting scraper 105 and the hollow limiting plate 102. The driving motor 207 in the first power box 205 drives the transmission box 208, the first transmission shaft 209, the second transmission shaft 210, the chain transmission frame 211 and the corresponding cleaning brush cylinder 212 in the first support box 206 to clean the upper part of the limiting scraper 105 and the hollow limiting plate 102, and moves the transmission box 208 in the first support box 206 up and down through the second slide 204, so as to fully and thoroughly clean all parts of the cathode wire body 101 and the upper part of the limiting scraper 105 and the hollow limiting plate 102.

[0042] A third slide 301 is embedded and installed on the side wall of the dust removal cylinder 201, and a sealing positioning plate 302 is sealed and slidably sleeved in the dust removal cylinder 201, and the sealing positioning plate 302 is connected to the sliding end of the third slide 301, and a first positioning frame 303 is installed on the lower side of the sealing positioning plate 302, and a water spray pipe network 304 is installed on the first positioning frame 303, and a plurality of pairs of cleaning nozzles 305 are installed on the water spray pipe network 304, and the plurality of pairs of cleaning nozzles 305 correspond to the dust collecting pipes 308 one by one, and a second positioning frame 306 is installed on the lower side of the first positioning frame 303, and a conductive pipe network 307 is installed on the second positioning frame 306, and the conductive pipe network 307 is fixedly connected and electrically connected to the upper end of each cathode line body 101, and an exhaust pipe port 309 is connected through one side of the dust removal cylinder 201 and close to the upper end of the dust collecting pipe 308;

[0043] When this embodiment is working, the first positioning frame 303 and the second positioning frame 306 are synchronously moved by the third slide 301, so that the installed tubular cathode wires move synchronously. Through the synchronous movement, the limiting scraper 105 just forms a scraping frame to scrape and clean the inner wall of the dust collecting pipe 308. The third slide 301 moves each tubular cathode wire between the two support boxes 202 to keep the tubular cathode wire stable. The water spray network 304 sprays water downward during dust removal to cooperate with the electric dust removal to clean the dust impurities. When cleaning the tubular cathode wire, the water spray network 304 sprays cleaning liquid downward, cooperates with the cleaning brush barrel 212 to clean each component, and supplies electricity to the cathode wire body 101 through the conductive pipe network 307 to generate corona for dust removal. At the same time, the hollow limiting plate 102 and the limiting scraper 105 are cooperated to limit the cathode wire body 101, and the exhaust pipe port 309 guides the airflow after dust removal to the outside.

[0044] When the present invention is in use, the cleaning brush cylinder 212 is used to fully clean all parts of the tubular cathode wire, which can greatly improve the cleanliness of the tubular cathode wire, avoid the hypertrophy of the thorns of the tubular cathode wire, and eliminate attachments. During cleaning, the third slide 301 is used to move each tubular cathode wire as a whole, pass through the dust collecting pipe 308 and pass out, which is convenient for the discharge of liquid after cleaning. The first slide 203 and the second slide 204 move the cleaning brush cylinder 212 to improve the cleaning effect, and at the same time facilitate the resetting of the tubular cathode wire after cleaning. The present invention can be installed on the existing electrostatic precipitator after modification, which reduces the difficulty of modification and installation, reduces the overall modification cost, and avoids the waste caused by a large number of scrapped equipment.

[0045] During operation, the hollow limiting plate 102 is provided to prevent the lower ends of the cathode wire body 101 from abutting against each other to cause accidents. The limiting scraper 105 and the limiting leaf spring 104 are used to further limit the cathode wire body 101 to prevent shaking. At the same time, when the limiting scraper 105 passes through the dust collecting pipe 308, the limiting leaf spring 104 pushes the limiting scraper 105 to abut against the inner wall of the dust collecting pipe 308, so that the limiting scraper 105 scrapes and cleans the inner wall of the dust collecting pipe 308, further keeping the cleanliness of various components in the process of electrostatic precipitator and avoiding the adhesion and accumulation of fine dust impurities.

[0046] During operation, the conductive pipe network 307 and the water spraying pipe network 304 can not only supply power and spray water in the prior art to flush the dust adsorbed by the electrostatic precipitator on the inner wall of the dust collecting pipe 308, but also cooperate with the cleaning brush tube 212 to spray cleaning liquid to react with the attachments on each thorn of the cathode line body 101 to further perform the cleaning process, and both the water containing dust and the cleaning liquid containing impurities are discharged through the existing sewage discharge channel of the electrostatic precipitator equipment, and when the limiting scraper 105 moves down and resets, it just scrapes and cleans the dust collecting pipe 308 again, and the water spraying pipe network 304 sprays water again so that the debris on the limiting scraper 105 is discharged with the water flow, thereby completely completing the cleaning work. The present invention can be modified with the help of a large number of existing structures, and the added components will not affect the work of the existing structures, and can promote the effect of the electrostatic precipitator process, extend the working life of important components of the electrostatic precipitator, and save a lot of manpower and material resources consumed by manual dismantling and cleaning, thereby improving the overall work efficiency.

[0047] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A tubular cathode wire, characterized in that: The invention comprises a cathode wire body (101) arranged in a dust removal cylinder (201), the cathode wire body (101) being provided with a plurality of uniformly distributed cathode wire bodies in an array, a positioning cylinder (110) being installed at the lower end of the cathode wire body (101), hollow limiting plates (102) being installed at the outer peripheries of both ends of the positioning cylinder (110), a plurality of limiting sliding grooves (103) being opened at the outer periphery of the hollow limiting plate (102), a plurality of limiting leaf springs (103) being installed at the outer periphery of the middle part of the positioning cylinder (110), 04), a limiting scraper (105) is installed at the end of the limiting leaf spring (104), a transmission bevel (106) is installed in the middle of both sides of the limiting scraper (105), a clamping slide block (108) is installed on both sides of the tip of the transmission bevel (106), a clamping slide groove (107) is opened on both side walls of the limiting slide groove (103), the clamping slide block (108) is slidably connected with the clamping slide groove (107), and a plurality of hollow air holes (109) are opened through the hollow limiting plate (102).

2. A tubular cathode wire according to claim 1, characterized in that: The cathode wire body (101) is provided with a plurality of them and evenly distributed in an array, the plurality of the limiting slide grooves (103) are evenly distributed in a ring array, and the limiting slide grooves (103) on the upper and lower sides correspond to each other, and each of the limiting leaf springs (104) corresponds one by one to the limiting slide grooves (103) on the upper and lower sides.

3. A tubular cathode wire according to claim 1, characterized in that: The tip of the transmission bevel block (106) is slidably connected in the corresponding limiting slide groove (103), one side of the clamping slider (108) is flush with the inclined surface of the transmission bevel block (106), and each of the hollow air holes (109) and the limiting slide groove (103) are evenly and staggeredly distributed.

4. A tubular cathode wire according to claim 1, characterized in that: A plurality of dust collecting pipes (308) are installed in the dust removal cylinder (201); the cathode line body (101) corresponds to the dust collecting pipe (308) one by one and is arranged through the middle of the inner side thereof; the cross section of the dust collecting pipe (308) is a regular hexagon; the plurality of dust collecting pipes (308) are evenly distributed in an array and adjacent side walls are sealed and connected.

5. A tubular cathode wire according to claim 4, characterized in that: The outer contour of the hollow limiting plate (102) is a regular hexagon and maintains a uniform gap with the inner wall of the dust collecting pipe (308). There are six limiting slide grooves (103), limiting leaf springs (104), limiting scrapers (105) and hollow air holes (109). The outer edge of the limiting scraper (105) is as wide as the inner wall of the dust collecting pipe (308).

6. An external self-cleaning device, characterized in that: Used to clean the tubular cathode wire according to any one of claims 1 to 5, comprising a support box (202) arranged on both sides of a dust removal cylinder (201), a first slide (203) being installed on the top of the inner side of the support box (202), a second slide (204) being installed at the lower part of the slider of the first slide (203), a first power box (205) being installed on one side of the slider of the second slide (204), a first support box (206) being installed on one side of the first power box (205), and a second power box (205) being installed at the lower part of the first power box (205). A power box (214), a second support box (215) is installed at the lower part of the first support box (206), a cleaning brush cylinder (212) is provided on one side of the second support box (215) in the first support box (206), a support slide bar (213) is installed at the bottom of the inner side of the support box (202), the second power box (214) is slidably connected to the support slide bar (213), and a through groove (216) is penetrated on both sides of the dust removal cylinder (201), and the through groove (216) connects the support box (202) and the dust removal cylinder (201).

7. An external self-cleaning device according to claim 6, characterized in that: The first power box (205) and the second power box (214) are both provided with a driving motor (207), the first power box (205) is slidably connected to the installed driving motor (207), the sliding end of the second slide (204) is fixedly connected to the corresponding driving motor (207), the first support box (206) and the second support box (215) are both provided with a transmission box (208), the first support box (206) is slidably connected to the installed transmission box (208), and the driving motor (207) is fixedly connected to the transmission box (208).

8. An external self-cleaning device according to claim 7, characterized in that: A first transmission shaft (209) is rotatably connected to the middle of the inner side of the transmission box (208); the first transmission shaft (209) is fixedly connected to the driving shaft of the driving motor (207); a plurality of second transmission shafts (210) are provided on both sides of the first transmission shaft (209); the second transmission shafts (210) are rotatably connected to the transmission box (208); the first transmission shaft (209) and the second transmission shaft (210) are evenly distributed at equal intervals; the first transmission shaft (209) and the second transmission shaft (210) are mutually transmitted via a chain transmission frame (211); and the first transmission shaft (209) and the second transmission shaft (210) are fixedly connected to corresponding cleaning brush cylinders (212).

9. The external self-cleaning device according to claim 6, characterized in that: A third slide (301) is embedded and installed on the side wall of the dust removal cylinder (201); a sealing positioning plate (302) is sealingly and slidingly sleeved inside the dust removal cylinder (201); the sealing positioning plate (302) is connected to the sliding end of the third slide (301); a first positioning frame (303) is installed on the lower side of the sealing positioning plate (302); a water spray pipe network (304) is installed on the first positioning frame (303); a plurality of pairs of cleaning nozzles (305) are installed on the water spray pipe network (304); and the plurality of pairs of cleaning nozzles (305) correspond one-to-one to the dust collecting pipe (308).

10. An external self-cleaning device according to claim 9, characterized in that: A second positioning frame (306) is installed at the lower side of the first positioning frame (303), and a conductive pipe network (307) is installed on the second positioning frame (306). The conductive pipe network (307) is fixedly connected to the upper end of each cathode line body (101) and is electrically connected. An exhaust pipe port (309) is connected through one side of the dust removal cylinder (201) and close to the upper end of the dust collecting pipe (308).

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