Anticorrosion steel pipe spraying device

Abstract

The application discloses a kind of anticorrosion steel pipe spraying devices, comprising: for the axial migration of steel pipe steel pipe V-shaped conveying roller; Near the V-shaped conveying roller end ground is provided with equipment slot, the bottom of the equipment slot is provided with several hydraulic cylinders along the vertical direction extension and contraction;The top of the several hydraulic cylinders is connected with horizontal bottom plate, the bottom plate is connected with web, the web upper end is connected with top plate, a pair of rotary rollers is arranged on the top plate, and the surface of the rotary roller is provided with roller brush;Several outer nozzles for spraying the outer wall of the steel pipe are also provided on the top plate.The comprehensiveness and uniformity of the steel pipe spraying are better, the steel pipe moving process does not need to be hoisted, the safety factor is high, and it is easy to be well connected with other processing procedures of the steel pipe, and the production continuity is good.

Description

Technical Field

[0001] This invention relates to the field of steel pipe anti-corrosion equipment technology. More specifically, this invention relates to an anti-corrosion steel pipe spraying device. Background Technology

[0002] my country has a vast territory and abundant hydropower resources. Vigorously developing hydropower as a clean energy source is an essential path for China's energy structure adjustment, and hydropower resources are now being actively developed and exploited as a strategic energy area and a key area for energy security. In the process of transporting water resources, pressure steel pipes are generally used. To prevent corrosion of these pipes, both the inner and outer walls need to be treated with anti-corrosion measures. These measures include rust removal, shot blasting, and spraying. However, current spraying processes typically involve hoisting the pressure steel pipe onto a support base and then using a spray gun to coat the inner and outer walls. This process is cumbersome, has a low safety factor, and poor production continuity. Furthermore, the portion of the pipe supported by the support base is often obstructed from spraying, requiring the pipe to be moved after the rest of the pipe has been coated before recoating the supported section, resulting in low work efficiency. Summary of the Invention

[0003] The purpose of this invention is to provide an anti-corrosion steel pipe spraying device. This device has good comprehensiveness and uniformity in spraying steel pipes, does not require hoisting during the steel pipe movement process, has a high safety factor, and can be easily integrated with other steel pipe processing procedures, resulting in good production continuity.

[0004] To achieve these objectives and other advantages according to the present invention, an anti-corrosion steel pipe spraying apparatus is provided, comprising:

[0005] V-shaped conveyor rollers for moving the steel pipe axially;

[0006] Near the end of the V-shaped conveyor roller conveyor, an equipment trough is provided on the ground between the V-shaped conveyor roller conveyors. The length direction of the equipment trough is consistent with the movement direction of the steel pipe and the length of the equipment trough is not less than the length of the steel pipe. Several hydraulic cylinders that extend and retract in the vertical direction are provided at the bottom of the equipment trough.

[0007] The top of the plurality of hydraulic cylinders is connected to a horizontal base plate, the base plate is connected to a plurality of vertical stiffeners, the upper end of the stiffeners is connected to a top plate, a pair of rotary rollers are provided on the top plate, the rotary rollers are arranged along the moving direction of the steel pipe, the pair of rotary rollers are respectively located on both sides of the center line of the V-shaped conveyor roller track, and roller brushes are provided on the surface of the rotary rollers.

[0008] The top plate is also provided with several external nozzles for spraying coating on the outer wall of the steel pipe, and the external nozzles are located between a pair of rotary rollers;

[0009] When the steel pipe is moved above the equipment trough, in the retracted state of the hydraulic cylinder, the rotary roller and the outer nozzle are both away from the steel pipe. In the extended state of the hydraulic cylinder, a pair of rotary rollers abut against the outer wall of the steel pipe and lift the steel pipe to separate the steel pipe from the V-shaped conveyor roller track. The outer nozzle is close to the bottom of the steel pipe.

[0010] Preferably, an equipment box is provided in front of the end of the V-shaped conveyor roller, and an inner spray main pipe is provided through the side of the equipment box facing the V-shaped conveyor roller, and a plurality of inner nozzles are connected to the inner spray main pipe.

[0011] The side of the equipment box facing the V-shaped conveyor roller is also connected to a coating roller, and the surface of the coating roller is also provided with a roller brush.

[0012] When the steel pipe is moved above the equipment trough, the section of the inner spray main pipe with the inner nozzle and the section of the coating roller with the roller brush are both located inside the steel pipe. When the hydraulic cylinder is retracted, the coating roller moves away from the steel pipe. When the hydraulic cylinder is extended, the coating roller abuts against the inner wall of the steel pipe.

[0013] Preferably, the rib plate has a first through hole, through which an external spray main pipe passes. The external spray main pipe is provided with a plurality of external spray branch pipes that connect a plurality of external nozzles to the external spray main pipe respectively. The top plate is provided with a second through hole that allows the external spray branch pipes to pass through.

[0014] Preferably, the top plate has a recessed center to form a groove for collecting dripping anti-corrosion coating, and the external nozzle is disposed at the bottom of the groove.

[0015] Preferably, the equipment box is provided with an anti-corrosion coating storage tank and a first high-pressure pump. The anti-corrosion coating storage tank is connected to the inlet of the first high-pressure pump through a first pipe, and the outlet of the first high-pressure pump is connected to the external spray main pipe through a telescopic corrugated pipe. The side of the equipment box facing the V-shaped conveyor roller is provided with a third through hole for the telescopic corrugated pipe to pass through.

[0016] Preferably, the equipment box is also equipped with a second high-pressure pump, the anti-corrosion coating storage tank is connected to the inlet of the second high-pressure pump through a second pipeline, and the outlet of the second high-pressure pump is connected to the internal spray main pipe through a hose.

[0017] Preferably, a transmission belt is wound around the V-shaped conveyor roller track, and a first motor is provided at the other end of the V-shaped conveyor roller track to drive the conveyor roller at the other end of the V-shaped conveyor roller track to rotate actively, thereby driving other rollers to rotate passively through the transmission belt.

[0018] Preferably, in a pair of rotary rollers, the spindle of one rotary roller is bent at both ends and fixedly connected to the top plate, and the roller body of the rotary roller is rotatably connected to its spindle. The roller body of the other rotary roller is fixedly connected to its spindle. The top plate is provided with an ear seat for supporting the spindle of the rotary roller, and the spindle of the rotary roller is rotatably connected to the ear seat. The top plate is also provided with a second motor, and the output shaft of the second motor is connected to the spindle of the other rotary roller so that the second motor drives the roller body of the other rotary roller to rotate actively.

[0019] Preferably, the first motor is a bidirectional rotating motor.

[0020] The present invention has at least the following beneficial effects: the steel pipe to be coated can be safely and smoothly transported to the coating station by the V-shaped conveyor roller. The steel pipe is then lifted by hydraulic cylinders and rotary rollers to separate it from the V-shaped conveyor roller. The rotary roller is then rotated to rotate the steel pipe. Anti-corrosion material is sprayed onto the outer wall of the steel pipe through the external nozzle. The roller brush on the rotary roller can then spread the anti-corrosion coating evenly. After the steel pipe is coated, the V-shaped conveyor roller can also reverse to move the steel pipe out of the coating station and directly to the next processing step, achieving a good connection with other processing steps.

[0021] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description

[0022] Figure 1 This is a side view of the anti-corrosion steel pipe spraying device according to an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the side structure inside the equipment tank of the anti-corrosion steel pipe spraying device according to an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the end face structure of the anti-corrosion steel pipe spraying device in the first state according to an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the end face structure of the anti-corrosion steel pipe spraying device in the second state according to an embodiment of the present invention. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0027] It should be noted that, unless otherwise specified, the experimental methods described in the following embodiments are all conventional methods, and the reagents and materials described are all commercially available unless otherwise specified. In the description of this invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0028] like Figures 1-4 As shown, the present invention provides an anti-corrosion steel pipe spraying device, comprising:

[0029] V-shaped conveyor roller 2 is used to move the steel pipe 1 axially along the steel pipe 1;

[0030] Near the end of the V-shaped conveyor roller 2, an equipment trough is provided on the ground between the V-shaped conveyor roller 2. The length direction of the equipment trough is consistent with the movement direction of the steel pipe 1 and the length of the equipment trough is not less than the length of the steel pipe 1. Several hydraulic cylinders 3 that extend and retract in the vertical direction are provided at the bottom of the equipment trough.

[0031] The top of the plurality of hydraulic cylinders 3 is connected to a horizontal base plate 4, and the base plate 4 is connected to a plurality of vertical stiffeners 5. The upper end of the stiffeners 5 is connected to a top plate 6, and a pair of rotary rollers 7 are provided on the top plate 6. The rotary rollers 7 are arranged along the moving direction of the steel pipe 1. The pair of rotary rollers 7 are respectively located on both sides of the center line of the V-shaped conveyor roller track 2. The roller body surface of the rotary rollers 7 is provided with roller brushes.

[0032] The top plate 6 is also provided with a plurality of external nozzles 8 for spraying coating on the outer wall of the steel pipe 1, and the external nozzles 8 are located between a pair of rotary rollers 7;

[0033] When the steel pipe 1 is moved above the equipment trough, in the retracted state of the hydraulic cylinder 3, the rotary roller 7 and the outer nozzle 8 are both away from the steel pipe 1. In the extended state of the hydraulic cylinder 3, a pair of rotary rollers 7 abut against the outer wall of the steel pipe 1 and lift the steel pipe 1 so that the steel pipe 1 is separated from the V-shaped conveyor roller 2, and the outer nozzle 8 approaches the bottom of the steel pipe 1.

[0034] In the above embodiment, the steel pipe 1 to be coated can be moved to the coating station above the equipment tank by the V-shaped conveyor roller 2. Then, the hydraulic cylinder 3 is activated, causing a pair of rotary rollers 7 to abut against the outer wall of the steel pipe 1 and lift the steel pipe 1 to separate it from the V-shaped conveyor roller 2. Then, the anti-corrosion coating can be sprayed onto the outer wall of the steel pipe 1 through the external nozzle 8. In order to make the anti-corrosion coating evenly applied, the rotary roller 7 can be rotated. Driven by the rotary roller 7, the steel pipe 1 also rotates. In this way, the outer circumference of the steel pipe 1 can be coated with the anti-corrosion coating sprayed by the external nozzle 8. In addition, the roller brush on the surface of the rotary roller 7 can also make the anti-corrosion coating evenly applied. After the coating is completed, the hydraulic cylinder 3 can be retracted, so that the coated steel pipe 1 can return to the V-shaped conveyor roller 2. At this time, the V-shaped conveyor roller 2 reverses and moves the steel pipe 1 out of the coating station and directly to the next processing step, realizing a good connection with other processing steps.

[0035] In another embodiment, an equipment box 9 is provided in front of the end of the V-shaped conveyor roller 2, and an inner spray pipe 10 is provided through the side of the equipment box 9 facing the V-shaped conveyor roller 2. A plurality of inner nozzles 11 are connected to the inner spray pipe 10.

[0036] The side of the equipment box 9 facing the V-shaped conveyor roller 2 is also connected to a coating roller 12. Here, the spindle of the coating roller 12 is fixedly connected to the equipment box 9, and the roller body of the coating roller 12 is rotatably connected to its spindle. The surface of the roller body of the coating roller 12 is also provided with a roller brush.

[0037] When the steel pipe 1 is moved above the equipment trough, the section of the inner spray main pipe 10 with the inner nozzle 11 and the section of the coating roller 12 with the roller brush are both located inside the steel pipe 1. When the hydraulic cylinder 3 is in the retracted state, the coating roller 12 is away from the steel pipe 1. When the hydraulic cylinder 3 is in the extended state, the coating roller 12 abuts against the inner wall of the steel pipe 1.

[0038] In the above embodiments, when the steel pipe 1 is moved to the spraying station above the equipment tank, anti-corrosion coating can also be sprayed onto the inner wall of the steel pipe 1 through the inner nozzle 11. Since the rotary roller 7 can drive the steel pipe 1 to rotate, the anti-corrosion coating sprayed by the inner nozzle 11 can also be coated circumferentially on the inner wall of the steel pipe 1. In addition, the coating roller 12 rotates along with the steel pipe 1 after it rotates, so the roller brush on the coating roller 12 can also coat the anti-corrosion coating evenly on the inner wall of the steel pipe 1.

[0039] In another embodiment, the stiffener 5 is provided with a first through hole, through which an external spray main pipe 13 is passed. The external spray main pipe 13 is provided with a plurality of external spray branch pipes 14 that connect a plurality of external nozzles 8 to the external spray main pipe 13 respectively. The top plate 6 is provided with a second through hole that allows the external spray branch pipes 14 to pass through.

[0040] In the above embodiments, by setting the external spray main pipe 13 and the external spray branch pipe 14, the pipe that provides the anti-corrosion coating only needs to be connected to the external spray main pipe 13, making the equipment assembly and use more convenient and faster.

[0041] In another embodiment, the top plate 6 is recessed in the middle to form a groove for collecting dripping anti-corrosion coating, and the external nozzle 8 is disposed at the bottom of the groove.

[0042] In the above embodiments, the anti-corrosion coating dripping from the outer wall of the steel pipe 1 can be collected by setting grooves, which facilitates centralized treatment.

[0043] In another embodiment, the equipment box 9 is provided with an anti-corrosion coating storage tank and a first high-pressure pump. The anti-corrosion coating storage tank is connected to the inlet of the first high-pressure pump through a first pipe. The outlet of the first high-pressure pump is connected to the external spray main pipe 13 through a telescopic corrugated pipe 19. The side of the equipment box 9 facing the V-shaped conveyor roller 2 is provided with a third through hole for the telescopic corrugated pipe 19 to pass through.

[0044] In the above embodiment, by setting up an anti-corrosion coating storage tank and a first high-pressure pump, the spraying of anti-corrosion coating by the external nozzle 8 can be controlled by controlling the start and stop of the first high-pressure pump, thus realizing the electrical control of the device. At the same time, the telescopic corrugated pipe 19 is also adapted to the working condition of the external spray main pipe 13 frequently rising and falling.

[0045] In another embodiment, the equipment box 9 is also equipped with a second high-pressure pump, the anti-corrosion coating storage tank is connected to the inlet of the second high-pressure pump through a second pipe, and the outlet of the second high-pressure pump is connected to the inner spray main pipe 10 through a hose.

[0046] In the above embodiment, by setting a second high-pressure pump, the spraying of anti-corrosion coating by the inner nozzle 11 can be controlled by controlling the start and stop of the second high-pressure pump, thus realizing the electrical control of the device.

[0047] In another embodiment, a transmission belt 15 is wound around the V-shaped conveyor roller 2, and a first motor 16 is provided at the other end of the V-shaped conveyor roller 2 to drive the conveyor roller at the other end of the V-shaped conveyor roller 2 to rotate actively, thereby driving other rollers to rotate passively through the transmission belt 15.

[0048] In the above embodiments, by setting up a transmission belt 15 and a first motor 16, controlling the first motor 16 can drive the transmission belt 15 to move, thereby driving the steel pipe 1 on the transmission belt 15 to move, thus realizing the electrification control of the device.

[0049] In another embodiment, in a pair of rotary rollers 7, the spindle of one rotary roller 7 is bent at both ends and fixedly connected to the top plate 6, and the roller body of the rotary roller 7 is rotatably connected to its spindle. The roller body of the other rotary roller 7 is fixedly connected to its spindle. The top plate 6 is provided with an ear seat 17 for supporting the spindle of the rotary roller 7. The spindle of the rotary roller 7 is rotatably connected to the ear seat 17. The top plate 6 is also provided with a second motor 18. The output shaft of the second motor 18 is connected to the spindle of the other rotary roller 7 so that the second motor 18 drives the roller body of the other rotary roller 7 to rotate actively.

[0050] In the above embodiment, by designing the structure of a pair of rotary rollers 7 and setting a second motor 18, the control of the second motor 18 can drive one rotary roller 7 to rotate, thereby driving the steel pipe 1 on the rotary roller 7 to rotate, thus realizing the electrification control of the device.

[0051] In another embodiment, the first motor 16 is a bidirectional rotating motor, so that the steel pipe 1 can be moved from the workstation of other processing steps to the spraying station, and transferred from the spraying station to the V-shaped conveyor roller 2 by the first motor 16.

[0052] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A corrosion resistant steel pipe spraying apparatus characterized by comprising: The utility model provides a kind of steel pipe anti-corrosion device, including: V-shaped conveying roller for moving the steel pipe along the axis of the steel pipe; A device groove is arranged on the ground between V-shaped conveying roller, the length direction of the device groove is consistent with the moving direction of the steel pipe, and the length of the device groove is not less than the length of the steel pipe, a plurality of hydraulic cylinders are arranged on the bottom of the device groove and extend in vertical direction; The top end of the plurality of hydraulic cylinders is connected with horizontal bottom plate, a plurality of vertical rib plates are connected on the bottom plate, the upper end of the rib plate is connected with top plate, a pair of rotary rollers are arranged on the top plate, the rotary rollers are arranged along the moving direction of the steel pipe, a pair of rotary rollers are respectively located on both sides of the center line of V-shaped conveying roller, and the surface of the rotary roller is provided with roller brush; A plurality of outer nozzles for spraying the outer wall of the steel pipe are also arranged on the top plate, and the outer nozzles are located between a pair of rotary rollers; A device box is arranged in front of the end of V-shaped conveying roller, an inner spraying main pipe is arranged on the side of the device box facing V-shaped conveying roller, and a plurality of inner nozzles are connected on the inner spraying main pipe; The side of the device box facing V-shaped conveying roller is also connected with coating roller, and the surface of the coating roller is also provided with roller brush; When the steel pipe moves above the device groove, the section of the inner spraying main pipe provided with inner nozzles and the section of the coating roller provided with roller brush are both located in the steel pipe, the rotary roller and the outer nozzle are away from the steel pipe in the retracted state of the hydraulic cylinder, the coating roller is away from the steel pipe, a pair of rotary rollers abut the outer wall of the steel pipe and lift the steel pipe to separate the steel pipe from V-shaped conveying roller in the elongated state of the hydraulic cylinder, the outer nozzle approaches the bottom of the steel pipe, and the coating roller abuts the inner wall of the steel pipe; A first through hole is formed on the rib plate, the outer spraying main pipe is arranged in the first through hole, a plurality of outer spraying branch pipes are arranged on the outer spraying main pipe and connected with the outer spraying main pipe, and a second through hole is formed on the top plate to allow the outer spraying branch pipes to pass through the second through hole; A groove is formed in the middle of the top plate to collect the falling anticorrosive coating, and the outer nozzles are arranged on the groove bottom; An anticorrosive coating storage tank and a first high-pressure pump are arranged in the device box, the anticorrosive coating storage tank is connected with the inlet of the first high-pressure pump through a first pipeline, the outlet of the first high-pressure pump is connected with the outer spraying main pipe through an elastic bellows, and a third through hole is formed on the side of the device box facing V-shaped conveying roller to allow the elastic bellows to pass through the third through hole; A second high-pressure pump is also arranged in the device box, the anticorrosive coating storage tank is connected with the inlet of the second high-pressure pump through a second pipeline, and the outlet of the second high-pressure pump is connected with the inner spraying main pipe through a hose; In a pair of rotary rollers, the core shaft of one rotary roller is fixedly connected to the top plate after being bent at both ends, the roller body of the rotary roller is rotatably connected to the core shaft, the roller body of the other rotary roller is fixedly connected to the core shaft, an ear seat is arranged on the top plate to support the core shaft of the rotary roller, the core shaft of the rotary roller is rotatably connected to the ear seat, a second motor is also arranged on the top plate, and the output shaft of the second motor is connected to the core shaft of the other rotary roller, so that the second motor drives the other rotary roller to rotate actively.

2. The apparatus of claim 1, wherein The V-shaped conveying roller way is provided with a transmission belt, and a first motor is arranged at the other end of the V-shaped conveying roller way to drive the driving rotation of the roller body at the other end of the V-shaped conveying roller way, so as to drive the driven rotation of other roller bodies through the transmission belt.

3. The apparatus of claim 2, wherein the spray gun is mounted on a carriage that is movable along the length of the pipe. The first motor is a bidirectional rotation motor.

Images