Steel pipe inner anti-corrosion layer spraying device with floating foam recycling function

Abstract

The utility model relates to the technical field of steel pipe processing equipment, in particular to a steel pipe inner anticorrosive coating spraying device with a floating foam recovery function, which comprises a device frame, a spraying head connected with a telescopic cylinder is mounted on the device frame, a coating bin is arranged on the device frame, and the coating bin is connected with the spraying head through a conveying pipeline. Blocking pieces made of rubber are further installed on the portions, on the two sides of the spraying head, of the telescopic cylinder, each blocking piece is of a structure matched with the interior of the steel pipe and slightly smaller than the interior of the steel pipe, each blocking piece comprises a left blocking piece body installed on the left side of the spraying head and a right blocking piece body installed on the right side of the spraying head, and a suction pipe is installed on the side face of each telescopic cylinder and provided with a suction opening. The suction port is formed between the left blocking piece and the right blocking piece, the suction pump is installed in the middle of the suction pipe, the recovery tank is further installed on the device frame, and dissolving liquid is contained in the recovery tank. The method has the advantages that environmental pollution can be reduced, and product quality can be improved.

Description

Technical Field

[0001] This utility model relates to the technical field of steel pipe processing equipment, specifically to a device for spraying anti-corrosion coating inside steel pipes. Background Technology

[0002] The steel pipe internal anti-corrosion coating spraying device includes a frame, on which a spray head connected to a telescopic cylinder is mounted. The frame also has a paint tank, which holds the anti-corrosion paint. The anti-corrosion paint solidifies on the inner wall of the steel pipe to form an internal anti-corrosion layer. The paint tank is connected to the spray head via a delivery pipe, in which a delivery pump is installed. Multiple sets of rollers, arranged from left to right, are also mounted on the frame. Each set of rollers includes a front roller and a rear roller, and these rollers are connected to a roller motor. In use, the steel pipe is placed on the multiple sets of rollers, which rotate the pipe. The spray head is positioned inside the steel pipe and faces its inner wall. The spray head sprays high-speed anti-corrosion paint that impacts the pipe wall, causing the paint to solidify and form an anti-corrosion layer. As the telescopic components extend and retract, different parts of the inner wall of the steel pipe can be sprayed, resulting in an anti-corrosion layer inside the pipe. During the spraying process, the anti-corrosion paint also produces a lot of foam, i.e., anti-corrosion paint particles floating inside the steel pipe.

[0003] In existing technologies, the anti-corrosion coating spraying device for steel pipes does not have a mechanism to recover these scum particles. On the one hand, the presence of scum particles will pollute the environment; on the other hand, the scum particles eventually fall onto the steel pipe, forming a loose structure, which makes the inner wall of the steel pipe rough and affects product quality. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned shortcomings by providing a steel pipe internal anti-corrosion coating spraying device that reduces environmental pollution and improves product quality—a steel pipe internal anti-corrosion coating spraying device with foam recovery.

[0005] The technical solution of this utility model is implemented as follows: a steel pipe internal anti-corrosion coating spraying device with foam recovery, including a device frame, a spray head connected to a telescopic cylinder mounted on the device frame, a paint tank on the device frame, the paint tank being connected to the spray head via a conveying pipe, a conveying pump installed in the middle of the pipe, and multiple sets of rollers from left to right mounted on the device frame, each set of rollers including a front roller and a rear roller, the rollers being connected to a roller motor; in use, the steel pipe is placed on the multiple sets of rollers, and the spray head is located inside the steel pipe. And towards the inner wall of the steel pipe; characterized in that: rubber baffles are also installed on the telescopic cylinders on both sides of the spray head, the baffles being a structure that fits and is slightly smaller than the inside of the steel pipe, the baffles including a left baffle installed on the left side of the spray head and a right baffle installed on the right side of the spray head, a suction pipe is installed on the side of the telescopic cylinder, the suction pipe having a suction port, the suction port being opened between the left baffle and the right baffle, a suction pump being installed in the middle of the suction pipe, and a recovery tank being installed on the device frame, the recovery tank containing a dissolving liquid.

[0006] Furthermore, the spray head and the suction port are oriented in opposite directions.

[0007] Furthermore, a hot bath is also installed on the device frame, and the recovery tank and paint bin are placed in the hot bath.

[0008] Furthermore, the hot bath has a heating component, which is connected to a control device. The control device uses the heating component to raise the temperature inside the hot bath to 70-75°C.

[0009] The beneficial effects of this utility model are: such a steel pipe internal anti-corrosion coating spraying device has the advantages of reducing environmental pollution and improving product quality. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the longitudinal section structure of this utility model.

[0011] Figure 2 yes Figure 1 A schematic diagram of the cross-sectional structure along the A-A direction.

[0012] Figure 3 yes Figure 1 A schematic diagram of the cross-sectional structure along the B-B direction.

[0013] Figure 4 yes Figure 1 A schematic diagram of the cross-sectional structure along the C-C direction.

[0014] The components include: 1. Frame; 21. Spray head; 22. Paint tank; 23. Conveying pipe; 24. Conveying pump; 25. Telescopic cylinder; 3. Roller; 31. Front roller; 32. Rear roller; 33. Roller motor; 4. Steel pipe; 5. Baffle; 51. Left baffle; 52. Right baffle; 53. Suction pipe; 531. Suction port; 54. Suction pump; 55. Recovery tank; 6. Hot bath tank; 61. Heating components. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0016] like Figure 1 , 2 As shown in Figures 3 and 4, a steel pipe internal anti-corrosion coating spraying device with foam recovery includes a frame 1. A spray head 21 connected to a telescopic cylinder 25 is mounted on the frame. A paint tank 22 is also mounted on the frame; the paint tank holds the anti-corrosion paint, which solidifies on the inner wall of the steel pipe to form an internal anti-corrosion layer. The paint tank is connected to the spray head via a conveying pipe 23, in which a conveying pump 24 is installed. Multiple sets of rollers 3, arranged from left to right, are also mounted on the frame. Each set of rollers includes a front roller 31 and a rear roller 32, and the rollers are connected to a roller motor 33. In use, the steel pipe 4 is placed on the multiple sets of rollers, and the spray head... The device is installed inside a steel pipe and facing the inner wall of the pipe. Its features include: rubber baffles 5 installed on the telescopic cylinders on both sides of the spray head; the baffles are fitted to and slightly smaller than the internal structure of the steel pipe, for example, the baffles are 3-5 mm away from the inner wall of the steel pipe; the baffles include a left baffle 51 installed on the left side of the spray head and a right baffle 52 installed on the right side of the spray head; a suction pipe 53 is installed on the side of the telescopic cylinder, the suction pipe having a suction port 531 located between the left and right baffles; a suction pump 54 is installed in the middle of the suction pipe; and a recovery tank 55 containing a dissolving liquid is also installed on the device frame.

[0017] The above-mentioned features of this utility model enable the recovery of scum, thus achieving the purpose of this utility model.

[0018] The solvent, such as ethanol, reduces foam coagulation and facilitates foam recycling.

[0019] It should be noted that the delivery pipe and suction pipe are retractable or flexible.

[0020] Furthermore, the spray head and the suction port are oriented in opposite directions.

[0021] The above-mentioned features of this invention can reduce the suction of the anti-corrosion coating sprayed from the spray head by the suction port.

[0022] Furthermore, a hot bath 6 is also installed on the device frame, and the recovery tank and paint bin are placed in the hot bath.

[0023] The above-mentioned features of this invention enable the sprayed anti-corrosion coating and the recovered scum to have the same temperature, which is beneficial for the reuse of the recovered scum.

[0024] Furthermore, the hot bath has a heating element 61, which is connected to a control device. The control device uses the heating element to raise the temperature inside the hot bath to 70-75°C.

[0025] The control device can be a PLC control device. This temperature can make the sprayed anti-corrosion coating work better and also keep the recovered foam in a better state. After a period of time, the recovered foam that has fallen into the recovery tank is taken out and added to the coating tank. After stirring, it can be used directly.

[0026] In the description of the embodiments of this utility model, it should be noted that the orientations or positional relationships indicated by terms such as "up," "down," "horizontal," "left," and "right" are based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships commonly used when the product is in use. These are merely for the convenience of describing the 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 the invention. Furthermore, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] The above description is only a specific embodiment of the present utility model, but the structural features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. A steel pipe internal anti-corrosion coating spraying device with foam recovery, comprising a frame, a spray head connected to a telescopic cylinder mounted on the frame, a paint tank on the frame, the paint tank being connected to the spray head via a conveying pipe, a conveying pump installed in the middle of the pipe, and multiple sets of rollers from left to right mounted on the frame, each set of rollers including a front roller and a rear roller, the rollers being connected to a roller motor; in use, the steel pipe is placed on the multiple sets of rollers, and the spray head is positioned inside the steel pipe and facing the inner wall of the steel pipe; characterized in that: Rubber baffles are installed on the telescopic cylinders on both sides of the spray head. The baffles are designed to fit and are slightly smaller than the internal structure of the steel pipe. The baffles include a left baffle installed on the left side of the spray head and a right baffle installed on the right side of the spray head. A suction pipe is installed on the side of the telescopic cylinder. The suction pipe has a suction port, which is located between the left and right baffles. A suction pump is installed in the middle of the suction pipe. A recovery tank containing a dissolving liquid is also installed on the device frame.

2. The steel pipe internal anti-corrosion coating spraying device with foam recovery according to claim 1, characterized in that: The spray head and suction port are oriented in opposite directions.

3. The steel pipe internal anti-corrosion coating spraying device with foam recovery according to claim 2, characterized in that: A hot bath is also installed on the device frame, and the recovery tank and paint bin are placed in the hot bath.

4. The steel pipe internal anti-corrosion coating spraying device with foam recovery according to claim 3, characterized in that: The hot bath has a heating component, which is connected to a control device. The control device uses the heating component to raise the temperature inside the hot bath to 70-75°C.

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