A spraying device for anti-corrosion treatment of seamless steel pipe surfaces

Abstract

The present invention discloses a spraying device for anti-corrosion treatment of the surface of seamless steel pipes, which relates to the technical field of spraying devices. In order to solve the problem that the inner and outer sides of the bent parts are prone to uneven spraying when spraying on serpentine seamless steel pipes, two groups of spray heads are respectively arranged on the inner and outer sides of the serpentine steel pipes for heat exchangers during spraying. The flow rates of the spray heads are controlled through the mutual cooperation of two path belts and a transmission assembly in the inner and outer transmission belt assemblies, enabling the feeding amount of the spray heads to be precisely matched with the spraying path. The inner path is short, and the flow rate of the spray heads is correspondingly reduced; the outer path is long, and the flow rate of the spray heads is increased, thereby ensuring that the amount of paint obtained per unit area on the inner and outer sides of the bent pipe is consistent throughout the spraying process, enabling the paint to uniformly cover, improving the overall aesthetic appearance and protective performance of the product, further contributing to ensuring the various properties of the coating, effectively extending the service life of the bent pipe, and reducing local damage and maintenance costs caused by coating performance differences.

Description

Technical Field

[0001] The present invention relates to the technical field of spraying devices, and specifically to a spraying device for anti-corrosion treatment of the surface of seamless steel pipes. Background Art

[0002] During the operation of a heat exchanger, seamless steel pipes may come into contact with various corrosive media, such as acid, alkali, and salt solutions. These media will react chemically with the surface of the steel pipes, resulting in corrosion of the steel pipes. By anti-corrosion spraying, a chemically stable coating is formed on the surface of the steel pipes, which can effectively isolate the steel pipes from contact with corrosive media and prevent chemical reactions from occurring, thereby protecting the steel pipes from chemical corrosion. However, if the spraying is uneven, the coating on some parts of the steel pipes will be too thin, and these weak points cannot provide sufficient protection and are easily eroded by external corrosive media such as moisture, acid-base solutions, etc., thus causing local corrosion, such as pitting corrosion, crevice corrosion, etc., reducing the service life of the steel pipes.

[0003] In this regard, the publication number: CN218013646U discloses a spraying device for the surface of steel pipes, including a base. Both the left and right sides of the top of the base are fixedly connected with support plates. The middle ends of the adjacent sides of each support plate are rotatably connected with a second rotating shaft. The sides of each second rotating shaft away from the support plates are fixedly connected with rotating plates. The bottoms of the inner walls of each rotating plate are fixedly connected with support columns. The tops of each support column are fixedly connected with concave clamping blocks. The tops of each rotating plate are threadedly connected with lead screws. The bottoms of each lead screw are fixedly connected with convex clamping blocks. The tops of the outer walls of each lead screw are fixedly connected with handles. The ends of each second rotating shaft away from the rotating plates penetrate through the support plates and the adjacent sides of the rotating plates. In the present utility model, through the clamping action inside the rotating plate combined with the rotation driven by the first motor, uniform spraying of the steel pipes is achieved. At the same time, during the process, a hot air blower dries the steel pipes, ensuring the spraying effect and improving the efficiency.

[0004] Most of the current steel pipe spraying devices are suitable for straight steel pipes. The serpentine seamless steel pipes used in heat exchangers have bends, and there are differences in the spraying paths on the inner and outer sides of the bends. When spraying all sides of them simultaneously, it is difficult to ensure the uniformity of spraying on the inner and outer sides, which easily leads to the problem that the spraying on the outer side is too thin and affects its protection effect, or the spraying amount on the inner side is too much, causing phenomena such as wall hanging.

[0005] In view of the above problems, a spraying device for anti-corrosion treatment of the surface of seamless steel pipes is proposed. Summary of the Invention

[0006] The purpose of the present invention is to provide a spraying device for anti-corrosion treatment of the surface of seamless steel pipes, which solves the problem that there are differences in the spraying paths on the inner and outer sides of the bent parts of the serpentine steel pipes in the background technology. When spraying all sides of the steel pipes simultaneously, it is difficult to ensure the uniformity of spraying on the inner and outer sides, which easily leads to a thinner spraying on the outer side and affects its protection effect, or an excessive spraying amount on the inner side resulting in wall hanging and other phenomena.

[0007] To achieve the above purpose, the present invention provides the following technical solution: A spraying device for anti-corrosion treatment of the surface of seamless steel pipes, including a spraying device bottom plate. A moving slide rail assembly is installed on the top of the spraying device bottom plate. The moving slide rail assembly includes a slide rail support plate, and the slide rail support plate is fixedly connected to the top of the spraying device bottom plate. A serpentine slide rail is fixedly connected to the top of the slide rail support plate, and a moving slider is installed on the top of the serpentine slide rail. A steel pipe clamping mechanism is also fixedly connected to the top of the spraying device bottom plate. A serpentine steel pipe for heat exchanger is arranged on the side of the steel pipe clamping mechanism, and the serpentine steel pipe for heat exchanger is erected on the top of the serpentine slide rail through the steel pipe clamping mechanism. An inner and outer transmission belt assembly is arranged on the side of the serpentine slide rail. The inner and outer transmission belt assembly includes a first path belt and a second path belt. The first path belt and the second path belt are respectively arranged on both sides of the serpentine slide rail, and the first path belt and the second path belt are arranged in parallel. A path belt end fixing column is also fixedly connected to the top of the spraying device bottom plate, and the path belt end fixing column is used to support and fix the ends of the first path belt and the second path belt.

[0008] Preferably, two groups of electric telescopic rods are symmetrically arranged on the top of the moving slider. The output end of the electric telescopic rod is fixedly connected to a transmission assembly. The transmission assembly includes a support vertical plate fixedly connected to the output end of the electric telescopic rod. A first rotating shaft is rotatably connected to the outer wall of the support vertical plate. A winding roller is fixedly connected to the bottom end of the first rotating shaft, and a first bevel gear is fixedly connected to the top end of the first rotating shaft. A second bevel gear is meshed on the side of the first bevel gear. A belt transmission mechanism is installed on the side of the support vertical plate. The belt transmission mechanism consists of a lower belt pulley, a transmission belt, and an upper belt pulley. Among them, the lower belt pulley is fixedly connected to the second bevel gear, and a second rotating shaft is fixedly connected to the side of the upper belt pulley. The second rotating shaft is rotatably connected to the support vertical plate.

[0009] Preferably, two groups of the transmission assemblies are symmetrically arranged on both sides of the moving slider. The winding roller in one group of the transmission assemblies rotates along the inner wall of the first path belt, and the winding roller in the other group of the transmission assemblies rotates along the inner wall of the second path belt.

[0010] Preferably, anti-slip convex strips are arranged at equal intervals on the outer wall of the winding roller, and anti-slip grooves are arranged at equal intervals on the inner walls of the first path belt and the second path belt.

[0011] Preferably, a spraying assembly is installed at the top of the supporting vertical plate. The spraying assembly includes a material control wheel, which is fixedly connected to one end of the second rotating shaft away from the pulley on the belt transmission mechanism. The outer wall of the material control wheel is equidistantly provided with material distribution grooves.

[0012] Preferably, a spraying column is fixedly connected to the top of the supporting vertical plate. A mixing chamber is provided inside the spraying column. A feeding channel is fixedly connected to the top of the spraying column, and the feeding channel is communicated with the mixing chamber. A material control chamber is fixedly connected to the top of the feeding channel, and the material control chamber is communicated with the feeding channel. The material control chamber covers the outside of the material control wheel, and the material control wheel is rotatably connected to the material control chamber.

[0013] Preferably, a material storage chamber is fixedly connected to the top of the material control chamber, and the material storage chamber is communicated with the material control chamber. An exhaust pipe penetrates through the inside of the material storage chamber, and the exhaust pipe is used to discharge the air inside the material distribution grooves to the outside. A feeding hose is fixedly connected to the side of the material storage chamber, and the bottom end of the feeding hose is fixedly connected to an anticorrosive paint storage tank. The anticorrosive paint storage tank is fixedly connected to the top of the spraying device bottom plate.

[0014] Preferably, a high-pressure air pump is fixedly connected to the top of the anticorrosive paint storage tank. The air outlet end of the high-pressure air pump is fixedly connected to an air pipe, and the air outlet end of the air pipe is communicated with the mixing chamber. A sector nozzle is fixedly connected to one end of the spraying column away from the air pipe. An atomization channel is also provided inside the spraying column, and the opening size of the atomization channel gradually decreases from the end close to the mixing chamber to the end close to the sector nozzle.

[0015] Preferably, a curved path adjusting assembly is provided at the turning of the first path belt and the second path belt. The curved path adjusting assembly includes a support column, and the support column is fixedly connected to the top of the spraying device bottom plate.

[0016] Preferably, a chassis is snap-fitted to the side of the support column. An outer support roller and an inner support roller are fixedly connected to the top of the chassis. The outer support roller and the inner support roller are used to support the first path belt and the second path belt.

[0017] Preferably, a disassembly and assembly clamping block is fixedly connected to the bottom of the chassis, and the disassembly and assembly clamping block is snap-fitted to the side of the support column. A disassembly and assembly bolt is threadedly connected to the inside of the disassembly and assembly clamping block, and the end of the disassembly and assembly bolt extends into the inside of the support column.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] A spraying device for anti-corrosion treatment of seamless steel pipe surfaces provided by the present invention is provided with two groups of spray heads on the inner and outer sides of the serpentine steel pipe for heat exchangers respectively. The flow rate of the spray heads is controlled by the cooperation of two path belts and a transmission component in the inner and outer transmission belt components, enabling the feeding amount of the spray heads to be precisely matched with the spraying path. The inner path is short, and the flow rate of the spray heads is correspondingly reduced; the outer path is long, and the flow rate of the spray heads increases, thereby ensuring that the amount of paint obtained per unit area on the inner and outer sides of the bent pipe is consistent throughout the spraying process, avoiding the situation of one side being too thick and the other side being too thin, enabling the paint to be evenly covered, improving the overall aesthetics and protection performance of the product, further contributing to ensuring the various properties of the coating, effectively extending the service life of the bent pipe, and reducing local damage and maintenance costs caused by coating performance differences.

[0020] A spraying device for anti-corrosion treatment of seamless steel pipe surfaces provided by the present invention supports the path belts by providing a curved diameter adjustment component, capable of adjusting the curved diameter size at the bending part of the two path belts, and then making it adapt to serpentine seamless steel pipes with different pipe diameters. The structure is simple, and the flexibility of the spraying device is effectively improved. Brief Description of the Drawings

[0021] Figure 1 It is a three-dimensional structure schematic diagram of the whole of the present invention;

[0022] Figure 2 It is a three-dimensional structure schematic diagram of the mobile slide rail component and the inner and outer transmission belt components of the present invention;

[0023] Figure 3 It is a three-dimensional structure schematic diagram of the transmission component and the spraying component of the present invention;

[0024] Figure 4 It is a three-dimensional structure schematic diagram of the transmission component of the present invention;

[0025] Figure 5 It is a three-dimensional structure schematic diagram of the spraying component of the present invention;

[0026] Figure 6 It is a cross-sectional structure schematic diagram of the spraying component of the present invention;

[0027] Figure 7 It is a three-dimensional structure schematic diagram of the curved diameter adjustment component of the present invention;

[0028] Figure 8 It is a three-dimensional structure schematic diagram of the mobile slide rail component of the present invention;

[0029] Figure 9 It is a three-dimensional structure schematic diagram of the curved diameter adjustment component and the inner and outer transmission belt components of the present invention.

[0030] In the figure: 1. Bottom plate of the spraying device; 2. Moving slide rail assembly; 3. Transmission assembly; 4. Spraying assembly; 5. Curved path adjustment assembly; 6. Serpentine steel pipe for heat exchanger; 7. Steel pipe clamping mechanism; 8. Inner and outer transmission belt assembly; 9. Electric telescopic rod; 201. Slide rail support plate; 202. Serpentine slide rail; 203. Moving slider; 301. Support vertical plate; 302. Winding roller; 303. First rotating shaft; 304. First bevel gear; 305. Second bevel gear; 306. Belt transmission mechanism; 307. Second rotating shaft; 401. Spraying column; 402. Mixing chamber; 403. Feeding channel; 404. Material control chamber; 405. Material control wheel; 406. Dividing groove; 407. Storage chamber; 408. Exhaust pipe; 409. Feeding hose; 410. Atomization channel; 411. Sector nozzle; 412. Vent pipe; 413. High-pressure air pump; 414. Anticorrosive coating storage tank; 501. Support column; 502. Chassis; 503. Outer support roller; 504. Inner support roller; 505. Disassembly and assembly block; 506. Disassembly and assembly bolt; 801. First path belt; 802. Second path belt; 803. Path belt end fixing column. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] To further understand the content of the present invention, the present invention will be described in detail in conjunction with the accompanying drawings.

[0033] Combined with Figures 1-9, a spraying device for anti-corrosion treatment of the surface of seamless steel pipes according to the present invention, comprising a spraying device bottom plate 1. A moving slide rail assembly 2 is installed on the top of the spraying device bottom plate 1. The moving slide rail assembly 2 includes a slide rail support plate 201, and the slide rail support plate 201 is fixedly connected to the top of the spraying device bottom plate 1. A serpentine slide rail 202 is fixedly connected to the top of the slide rail support plate 201. The slide rail support plate 201 is used to support and fix the serpentine slide rail 202. A moving slider 203 is installed on the top of the serpentine slide rail 202. A steel pipe clamping mechanism 7 is also fixedly connected to the top of the spraying device bottom plate 1. A serpentine steel pipe 6 for heat exchanger is arranged on the side of the steel pipe clamping mechanism 7. The serpentine steel pipe 6 for heat exchanger is erected on the top of the serpentine slide rail 202 through the steel pipe clamping mechanism 7. The running direction of the serpentine slide rail 202 is correspondingly arranged with the running direction of the serpentine steel pipe 6 for heat exchanger. When the moving slider 203 moves along the serpentine slide rail 202, the nozzle in the transmission assembly 3 on its top can move around both sides of the serpentine steel pipe 6 for heat exchanger. An inner and outer transmission belt assembly 8 is arranged on the side of the serpentine slide rail 202. The inner and outer transmission belt assembly 8 includes a first path belt 801 and a second path belt 802. The first path belt 801 and the second path belt 802 are respectively arranged on both sides of the serpentine slide rail 202, and the first path belt 801 and the second path belt 802 are parallel to each other. A path belt end fixing column 803 is also fixedly connected to the top of the spraying device bottom plate 1, and the path belt end fixing column 803 is used to support and fix the ends of the first path belt 801 and the second path belt 802. When in a straight line, the first path belt 801 and the second path belt 802 are parallel to the serpentine slide rail 202, and the length of its straight line is the same as the length of the straight line segment of the serpentine slide rail 202 and the straight line segment of the serpentine steel pipe 6 for heat exchanger. When in a bent section, the bent sections of the first path belt 801 and the second path belt 802 are respectively located on both sides of the bottom of the bent section of the serpentine steel pipe 6 for heat exchanger, and the length of the outer path belt is the same as the path length of the outer side of the serpentine steel pipe 6 for heat exchanger, and the length of the inner path belt is the same as the path of the inner side of the serpentine steel pipe 6 for heat exchanger.

[0034] On the top of the moving slider 203, two groups of electric telescopic rods 9 are symmetrically arranged. The output end of the electric telescopic rod 9 is fixedly connected with a transmission assembly 3. The transmission assembly 3 includes a supporting vertical plate 301 fixedly connected to the output end of the electric telescopic rod 9. The outer wall of the supporting vertical plate 301 is rotatably connected with a first rotating shaft 303. The bottom end of the first rotating shaft 303 is fixedly connected with a winding roller 302. And the top end of the first rotating shaft 303 is fixedly connected with a first bevel gear 304. A second bevel gear 305 is meshed with the side of the first bevel gear 304. A belt transmission mechanism 306 is installed on the side of the supporting vertical plate 301. The belt transmission mechanism 306 is composed of a lower belt pulley, a transmission belt and an upper belt pulley. Among them, the lower belt pulley is fixedly connected with the second bevel gear 305. The side of the upper belt pulley is fixedly connected with a second rotating shaft 307. The second rotating shaft 307 is rotatably connected with the supporting vertical plate 301. Two groups of the transmission assemblies 3 are symmetrically arranged on both sides of the moving slider 203. The winding roller 302 in one group of the transmission assemblies 3 rotates along the inner wall of the first path belt 801. The winding roller 302 in the other group of the transmission assemblies 3 rotates along the inner wall of the second path belt 802. Anti-slip convex strips are arranged at equal intervals on the outer wall of the winding roller 302. Anti-slip grooves are arranged at equal intervals on the inner walls of the first path belt 801 and the second path belt 802. The anti-slip convex strips and the anti-slip grooves are used to increase the friction between the winding roller 302 and the first path belt 801 and the second path belt 802, so that the winding roller 302 can rotate while moving along it.

[0035] When the moving slider 203 drives the transmission assembly 3 to move along the snake-shaped slide rail 202, at the straight section, the lengths of the path belts on the inner and outer sides are the same. The path lengths rolled by the two winding rollers 302 are the same, and the number of rotations is also the same. Furthermore, through the transmission of the first bevel gear 304, the second bevel gear 305, the belt transmission mechanism 306 and the second rotating shaft 307, the number of rotations of the material control wheel 405 driven is also the same. Thus, the amount of anticorrosive paint discharged at the two nozzles is the same. The amount of paint sprayed by the sector nozzles 411 on both sides of the serpentine steel pipe 6 for the heat exchanger at the straight section is the same. When moving to the bent section, the outer path belt is longer, and the number of rotations of the winding roller 302 rolling along it is more. Through a series of transmissions, the number of rotations of the material control wheel 405 driven is more. The amount of anticorrosive paint sprayed by the sector nozzles 411 on the outer side of the serpentine steel pipe 6 for the heat exchanger is more. Similarly, since the inner path belt is shorter, the amount of anticorrosive paint sprayed by the sector nozzles 411 located on the inner side of the serpentine steel pipe 6 for the heat exchanger correspondingly decreases. Furthermore, the amount of paint sprayed by the inner and outer sector nozzles 411 is adjusted in real time according to the surface areas on the inner and outer sides of the serpentine steel pipe 6 for the heat exchanger.

[0036] At the top of the supporting vertical plate 301, a spraying assembly 4 is installed. The spraying assembly 4 includes a material control wheel 405. The material control wheel 405 is fixedly connected to one end of the second rotating shaft 307 away from the pulley on the belt transmission mechanism 306. The outer wall of the material control wheel 405 is equidistantly provided with material distribution grooves 406. The top of the supporting vertical plate 301 is fixedly connected with a spraying column 401. The interior of the spraying column 401 is provided with a mixing chamber 402. The top of the spraying column 401 is fixedly connected with a material feeding channel 403, and the material feeding channel 403 is communicated with the mixing chamber 402. The top of the material feeding channel 403 is fixedly connected with a material control chamber 404, and the material control chamber 404 is communicated with the material feeding channel 403. The material control chamber 404 covers the outside of the material control wheel 405, and the material control wheel 405 is rotatably connected with the material control chamber 404. The top of the material control chamber 404 is fixedly connected with a material storage chamber 407, and the material storage chamber 407 is communicated with the material control chamber 404. An exhaust pipe 408 penetrates through the interior of the material storage chamber 407, and the exhaust pipe 408 is used to discharge the air inside the material distribution grooves 406 to the outside. A side of the material storage chamber 407 is fixedly connected with a feeding hose 409, and the bottom end of the feeding hose 409 is fixedly connected with an anticorrosive paint storage tank 414. The anticorrosive paint storage tank 414 is fixedly connected to the top of the spraying device base plate 1. The top of the anticorrosive paint storage tank 414 is fixedly connected with a high-pressure air pump 413, and the air outlet end of the high-pressure air pump 413 is fixedly connected with an air pipe 412, and the air outlet end of the air pipe 412 is communicated with the mixing chamber 402. One end of the spraying column 401 away from the air pipe 412 is fixedly connected with a sector nozzle 411. The interior of the spraying column 401 is also provided with an atomization channel 410, and the opening size of the atomization channel 410 gradually decreases from the end close to the mixing chamber 402 to the end close to the sector nozzle 411.

[0037] The anticorrosive paint inside the anticorrosive paint storage tank 414 is conveyed to the interior of the material storage chamber 407 through the feeding hose 409 under the power action of the liquid pumping pump, and flows into the interior of the material control chamber 404 under the action of gravity. When the rotation speed of the material control wheel 405 is faster, the amount of paint conveyed to the material feeding channel 403 through the material distribution grooves 406 is also more. The high-pressure air pump 413 conveys high-pressure air flow to the mixing chamber 402 through the air pipe 412. At the air outlet end of the air pipe 412, due to the high flow rate, the pressure decreases, and the paint at the material feeding channel 403 is sucked into the interior of the mixing chamber 402 by using negative pressure. At the same time, under the strong shearing force of the high-pressure air flow, the paint is split and atomized, and the atomized paint is sprayed onto the surface of the heat exchanger serpentine steel pipe 6 through the atomization channel 410 and the sector nozzle 411.

[0038] At the turning points of the first path belt 801 and the second path belt 802, a curved path adjusting component 5 is provided. The curved path adjusting component 5 includes a support column 501, and the support column 501 is fixedly connected to the top of the spraying device bottom plate 1. A chassis 502 is snap-connected to the side of the support column 501, and an outer support roller 503 and an inner support roller 504 are fixedly connected to the top of the chassis 502. The outer support roller 503 and the inner support roller 504 are used to support the first path belt 801 and the second path belt 802. A disassembly and assembly block 505 is fixedly connected to the bottom of the chassis 502, and the disassembly and assembly block 505 is snap-connected to the side of the support column 501. An inner threaded connection of the disassembly and assembly block 505 is provided with a disassembly and assembly bolt 506, and the end of the disassembly and assembly bolt 506 extends into the interior of the support column 501.

[0039] The curved path adjusting component 5 is used to support the first path belt 801 and the second path belt 802. Multiple groups of inner support rollers 504 and outer support rollers 503 can be provided. According to the different pipe diameters of the serpentine steel pipes 6 for heat exchangers in different batches, the inner support rollers 504 and the outer support rollers 503 of corresponding sizes can be replaced, so that the length of the bending part of the first path belt 801 and the second path belt 802 corresponds to the path lengths on the inner and outer sides of the bending part of the serpentine steel pipe 6 for the heat exchanger.

[0040] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0041] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A spraying device for anti-corrosion treatment of the surface of a seamless steel pipe, characterized in that: The invention comprises a spraying device bottom plate (1), a movable slide rail assembly (2) is installed on the top of the spraying device bottom plate (1), the movable slide rail assembly (2) comprises a slide rail support plate (201), and the slide rail support plate (201) is fixedly connected to the top of the spraying device bottom plate (1), a serpentine slide rail (202) is fixedly connected to the top of the slide rail support plate (201), and a movable slider (203) is installed on the top of the serpentine slide rail (202), and a steel pipe clamping mechanism (7) is also fixedly connected to the top of the spraying device bottom plate (1), a serpentine steel pipe (6) for a heat exchanger is arranged on the side of the steel pipe clamping mechanism (7), and the serpentine steel pipe (6) for the heat exchanger is supported by the steel pipe clamping mechanism (7). The top of the serpentine slide rail (202) is provided with an inner and outer transmission belt assembly (8) on the side of the serpentine slide rail (202), and the inner and outer transmission belt assembly (8) includes a first path belt (801) and a second path belt (802), and the first path belt (801) and the second path belt (802) are respectively arranged on both sides of the serpentine slide rail (202), and the first path belt (801) and the second path belt (802) are arranged in parallel, and the top of the bottom plate (1) of the spraying device is also fixedly connected with a path belt end fixing column (803), and the path belt end fixing column (803) is used to support and fix the ends of the first path belt (801) and the second path belt (802); Two groups of electric telescopic rods (9) are symmetrically arranged on the top of the movable slider (203); the output end of the electric telescopic rod (9) is fixedly connected to a transmission assembly (3); the transmission assembly (3) comprises a support vertical plate (301) fixedly connected to the output end of the electric telescopic rod (9); the outer wall of the support vertical plate (301) is rotatably connected to a first rotating shaft (303); the bottom end of the first rotating shaft (303) is fixedly connected to a revolving roller (302); and the top end of the first rotating shaft (303) is fixedly connected to a first umbrella A bevel gear (304) is provided, the side of the first bevel gear (304) is meshed with a second bevel gear (305), a belt transmission mechanism (306) is installed on the side of the supporting vertical plate (301), the belt transmission mechanism (306) is composed of a lower pulley, a transmission belt and an upper pulley, wherein the lower pulley is fixedly connected to the second bevel gear (305), the side of the upper pulley is fixedly connected to a second rotating shaft (307), and the second rotating shaft (307) is rotatably connected to the supporting vertical plate (301); The transmission components (3) are symmetrically arranged in two groups on both sides of the movable slider (203), wherein the orbiting rollers (302) in one group of the transmission components (3) rotate along the inner wall of the first path belt (801), and the orbiting rollers (302) in the other group of the transmission components (3) rotate along the inner wall of the second path belt (802); A spraying assembly (4) is installed on the top of the supporting vertical plate (301), and the spraying assembly (4) includes a material control wheel (405). The material control wheel (405) is fixedly connected to an end of the second rotating shaft (307) away from the pulley on the belt transmission mechanism (306), and the outer wall of the material control wheel (405) is provided with material dividing grooves (406) at equal intervals.

2. The spraying device for anticorrosion treatment of the surface of seamless steel pipe according to claim 1 is characterized in that: The outer wall of the orbiting roller (302) is provided with anti-skid convex strips arranged at equal intervals, and the inner walls of the first path belt (801) and the second path belt (802) are provided with anti-skid patterns at equal intervals.

3. The spraying device for anticorrosion treatment of the surface of seamless steel pipe according to claim 1, characterized in that: The top of the supporting vertical plate (301) is fixedly connected to a spray column (401), a mixing chamber (402) is provided inside the spray column (401), a material discharge channel (403) is fixedly connected to the top of the spray column (401), and the material discharge channel (403) is communicated with the mixing chamber (402), a material control chamber (404) is fixedly connected to the top of the material discharge channel (403), and the material control chamber (404) is communicated with the material discharge channel (403), the material control chamber (404) is covered on the outside of the material control wheel (405), and the material control wheel (405) and the material control chamber (404) are rotatably connected.

4. The spraying device for anticorrosion treatment of the surface of seamless steel pipe according to claim 3 is characterized in that: The top of the material control chamber (404) is fixedly connected to a material storage chamber (407), and the material storage chamber (407) is communicated with the material control chamber (404). An exhaust pipe (408) runs through the interior of the material storage chamber (407), and the exhaust pipe (408) is used to discharge the air inside the material distribution groove (406) to the outside. The side of the material storage chamber (407) is fixedly connected to a feed hose (409), and the bottom end of the feed hose (409) is fixedly connected to an anti-corrosion paint storage tank (414), and the anti-corrosion paint storage tank (414) is fixedly connected to the top of the bottom plate (1) of the spraying device.

5. The spraying device for anticorrosion treatment of the surface of seamless steel pipe according to claim 4, characterized in that: The top of the anti-corrosion coating storage tank (414) is fixedly connected to a high-pressure air pump (413), and the air outlet of the high-pressure air pump (413) is fixedly connected to a vent pipe (412), and the air outlet of the vent pipe (412) is communicated with the mixing chamber (402), and the end of the spray column (401) away from the vent pipe (412) is fixedly connected to a fan-shaped nozzle (411), and an atomizing channel (410) is also provided inside the spray column (401), and the opening size of the atomizing channel (410) gradually decreases from the end close to the mixing chamber (402) to the end close to the fan-shaped nozzle (411).

6. The spraying device for anticorrosion treatment of the surface of seamless steel pipe according to claim 1, characterized in that: A maze adjustment assembly (5) is provided at the turning points of the first path belt (801) and the second path belt (802), and the maze adjustment assembly (5) comprises a support column (501), and the support column (501) is fixedly connected to the top of the bottom plate (1) of the spraying device.

7. The spraying device for anticorrosion treatment of the surface of seamless steel pipe according to claim 6, characterized in that: The side of the support column (501) is snap-connected with a chassis (502), and the top of the chassis (502) is fixedly connected with an outer support roller (503) and an inner support roller (504), and the outer support roller (503) and the inner support roller (504) are used to support the first path belt (801) and the second path belt (802).

8. The spraying device for anticorrosion treatment of the surface of seamless steel pipe according to claim 7, characterized in that: The bottom of the chassis (502) is fixedly connected with a disassembly block (505), and the disassembly block (505) is snap-connected to the side of the support column (501), the internal thread of the disassembly block (505) is connected with a disassembly bolt (506), and the end of the disassembly bolt (506) extends into the interior of the support column (501).

Images