Shot blasting machine for outer wall of steel pipe
By introducing a blower, filter box, and filtration mechanism into the shot blasting machine for the outer wall of steel pipes, the problem of dust flying was solved, and the effective collection and removal of dust was achieved, ensuring a clean and safe working environment.
Patent Information
- Application Number
- CN202520381727.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-06
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-06
AI Technical Summary
Existing shot blasting machines for steel pipe exterior walls are prone to generating dust when handling fine ash and abrasives, which affects the working environment of workers.
A shot blasting machine for the outer wall of steel pipes was designed. It uses a blower, filter box, suction pipe and filtration mechanism to suction and filter dust, and uses blow pipe and blow nozzle to remove dust from the surface of steel pipes and prevent dust from scattering.
It effectively collects and filters residual dust after shot blasting of steel pipes, keeps the working environment clean, prevents dust pollution, and improves the safety of the working environment.
Smart Images

Figure CN223917666U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of shot blasting, specifically a shot blasting cleaning machine for the outer wall of steel pipes. Background Technology
[0002] Shot blasting machines are casting equipment that uses high-speed shot blasting to clean or strengthen the surface of castings. They can simultaneously remove sand, cores, and clean castings. In some regions, they are also colloquially called sandblasting machines or blasting machines. Shot blasting machines are commonly found in various processing and production processes. Steel pipe external wall shot blasting machines are cleaning equipment used to blast the outer wall of steel pipes. After shot blasting, although the oxide layer, welding slag, and other impurities are removed, some fine dust and abrasive particles still adhere to the outer surface. However, existing steel pipe external wall shot blasting machines mostly use blowing chambers, fans, and scraping methods to remove the fine dust and abrasive particles from the steel pipes. This method causes the fine dust and abrasive particles to fly around, affecting the workers' working environment and having significant limitations. Utility Model Content
[0003] To solve the above problems, namely the problems mentioned in the background art, this utility model proposes a shot blasting machine for the outer wall of steel pipes, including a support frame, a shot blasting machine is provided inside the support frame, a rotating roller is rotatably installed inside the support frame, a housing is fixedly installed on the upper end face of the support frame and on one side of the shot blasting machine, and three suction pipes are fixedly installed inside the support frame and below the housing, with suction ports provided on the upper wall of the suction pipes;
[0004] A pair of L-shaped frames are fixedly installed on the lower end face of the support frame, and a filter box is fixedly installed between the pair of L-shaped frames. A four-way connector is provided above the filter box. One end of the four-way connector is connected to the filter box, and the other three ends are respectively connected to the three suction pipes.
[0005] An exhaust fan is fixedly installed on one side wall of the filter box, and the air inlet of the exhaust fan penetrates through the lower wall of the filter box.
[0006] The filter box is equipped with a filtration mechanism for filtering dust.
[0007] Preferably, the filtration mechanism includes a pair of support blocks, both of which are fixedly installed on the inner wall of the filter box;
[0008] A first square frame is provided on the upper surface of the pair of bearing blocks, and a second square frame is provided above the first square frame. A connecting rod is fixedly installed between the first square frame and the second square frame.
[0009] Both the first and second frames are fixedly installed with a support mesh, and filter cotton is filled between a pair of support meshes.
[0010] Preferably, three air blowers are fixedly installed inside the housing, and air blowers are provided on the lower wall of the air blowers;
[0011] A connecting pipe is fixedly installed on the upper end face of the housing. One end of the connecting pipe is connected to the air outlet of the exhaust fan, and the other end is sealed.
[0012] The upper wall of the blower pipe is fixedly connected to a delivery pipe, and the end of the delivery pipe away from the blower pipe is fixedly connected to the connecting pipe.
[0013] Preferably, an opening is formed on one side wall of the filter box, and a sealing door for sealing the opening is hinged to the side wall of the filter box.
[0014] The beneficial technical effects of this utility model are as follows: under the action of the exhaust fan, filter box, four-way fitting, suction pipe and suction port, the dust on the surface of the steel pipe can be sucked up and collected, preventing dust from splashing and affecting the working environment.
[0015] At the same time, the dust on the surface of the steel pipe can be blown away by the connecting pipe, conveying pipe, blowing pipe and blowing nozzle, keeping the steel pipe clean.
[0016] Meanwhile, the filtration mechanism can filter the dust entering the filter box, preventing dust from entering the exhaust fan and bringing convenience to people. Attached Figure Description
[0017] Figure 1 A schematic diagram of the front view structure of this utility model is shown.
[0018] Figure 2 The diagram shows a front sectional view of the housing of this utility model.
[0019] Figure 3 This utility model is shown Figure 2 A magnified structural diagram of part A.
[0020] The attached diagram includes the following reference numerals: 1. Carrier frame; 2. Sandblasting and shot blasting machine; 3. Rotating roller; 4. Housing; 5. Suction pipe; 6. Suction port; 7. L-shaped frame; 8. Filter box; 9. Four-way fitting; 10. Exhaust fan; 11. Carrier block; 12. First square frame; 13. Second square frame; 14. Connecting rod; 15. Carrier net; 16. Filter cotton; 17. Air blowing pipe; 18. Air blowing port; 19. Connecting pipe; 20. Conveying pipe; 21. Sealing door. Detailed Implementation
[0021] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.
[0022] This utility model proposes a shot blasting cleaning machine for the outer wall of steel pipe, including a support frame 1, a shot blasting machine 2 is provided inside the support frame 1, a rotating roller 3 is rotatably installed inside the support frame 1, a housing 4 is fixedly installed on the upper end face of the support frame 1 and on one side of the shot blasting machine 2, and three suction pipes 5 are fixedly installed inside the support frame 1 and below the housing 4, with suction ports 6 provided on the upper wall of the suction pipes 5.
[0023] The rotating roller 3 can transport the steel pipe that needs to be shot blasted to the shot blasting and grinding machine 2, so that the outer wall surface of the steel pipe can be shot blasted.
[0024] A pair of L-shaped frames 7 are fixedly installed on the lower end face of the support frame 1. A filter box 8 is fixedly installed between the pair of L-shaped frames 7. A four-way connector 9 is provided above the filter box 8. One end of the four-way connector 9 is connected to the filter box 8, and the other three ends are connected to three suction pipes 5 respectively.
[0025] A blower 10 is fixedly installed on one side wall of the filter box 8, and the air inlet of the blower 10 penetrates through the lower wall of the filter box 8.
[0026] The exhaust fan 10 can draw air from the filter box 8, allowing the air in the four-way connector 9 to enter the filter box 8. At this time, under the action of the four-way connector 9, the powder remaining on the surface of the steel pipe after shot blasting can enter the suction pipe 5 through the suction port 6, and then flow into the filter box 8 through the four-way connector 9 to collect the dust.
[0027] The filter box 8 is equipped with a filter mechanism for filtering dust.
[0028] Specifically, the filtration mechanism includes a pair of support blocks 11, both of which are fixedly installed on the inner wall of the filter box 8.
[0029] A first frame 12 is provided on the upper surface of a pair of bearing blocks 11, and a second frame 13 is provided above the first frame 12. A connecting rod 14 is fixedly installed between the first frame 12 and the second frame 13.
[0030] A carrier net 15 is fixedly installed in both the first frame 12 and the second frame 13, and a filter cotton 16 is filled between a pair of carrier nets 15.
[0031] A pair of support blocks 11 can support the first frame 12, the second frame 13 and the connecting rod 14, while the filter cotton 16 can filter the dust flowing into the filter box 8 from the four-way fitting 9 to prevent dust from polluting the working environment.
[0032] Specifically, three air blowing pipes 17 are fixedly installed inside the housing 4, and air blowing ports 18 are provided on the lower wall of the air blowing pipes 17.
[0033] A connecting pipe 19 is fixedly installed on the upper end face of the housing 4. One end of the connecting pipe 19 is connected to the air outlet of the exhaust fan 10, and the other end is sealed.
[0034] The upper wall of the blower pipe 17 is fixedly connected to the delivery pipe 20, and the end of the delivery pipe 20 away from the blower pipe 17 is fixedly connected to the connecting pipe 19.
[0035] After the filter cotton 16 filters the dust, the air is delivered by the exhaust fan 10 to the connecting pipe 19, and then by the conveying pipe 20 to the blowing pipe 17 so that the air is blown out from the air outlet 18, which can blow away the dust on the surface of the steel pipe.
[0036] Specifically, an opening is formed on one side wall of the filter box 8, and a sealing door 21 for sealing the opening is hinged to one side wall of the filter box 8.
[0037] The staff can open the sealed door 21 by flipping it over, which makes it convenient for the staff to replace the filter cotton 16 and clean the dust in the filter box 8.
[0038] Working principle: In actual use, the operator first starts the exhaust fan 10, and simultaneously places the steel pipe to be shot blasted onto the rotating roller 3, pushing the steel pipe into the shot blasting machine 2. The shot blasting machine 2 then blasts the outer wall surface of the steel pipe. After shot blasting, the steel pipe moves into the housing 4. At this time, the exhaust fan 10 can draw air from the filter box 8, allowing air from the four-way connector 9 to enter the filter box 8. Under the action of the four-way connector 9, the residual powder on the surface of the steel pipe after shot blasting can enter the suction port 6 through the suction port. The air flows into the filter box 8 through the four-way fitting 9, where it collects dust. At the same time, the filter cotton 16 filters the dust entering the filter box 8. After the filter cotton 16 filters the dust, the air is delivered by the exhaust fan 10 to the connecting pipe 19, and then by the conveying pipe 20 to the blowing pipe 17, so that the air is blown out from the air outlet 18. This can blow away the dust on the surface of the steel pipe, keeping the surface of the steel pipe clean as it passes through the housing 4. It can also prevent dust from flying around and polluting the working environment, bringing convenience to people.
[0039] Although the present invention has been described with reference to preferred embodiments, various modifications can be made to it and components can be replaced with equivalents without departing from the scope of the present invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
[0040] In the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0041] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0042] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.
[0043] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.
Claims
1. A steel pipe outer wall shot blasting machine, comprising a bearing frame (1), a sand blasting and shot blasting polisher (2) is arranged in the bearing frame (1), a rotating roller (3) is rotatably installed in the bearing frame (1), characterized in that, A housing (4) is fixedly installed on the upper end face of the bearing frame (1) and on one side of the shot blasting machine (2). Three suction pipes (5) are fixedly installed inside the bearing frame (1) and below the housing (4). A suction port (6) is provided on the upper wall of the suction pipe (5). A pair of L-shaped frames (7) are fixedly installed on the lower end face of the bearing frame (1), and a filter box (8) is fixedly installed between the pair of L-shaped frames (7). A four-way connector (9) is provided above the filter box (8). One end of the four-way connector (9) is connected to the filter box (8), and the other three ends are connected to the three suction pipes (5) respectively. A blower (10) is fixedly installed on one side wall of the filter box (8), and the air inlet of the blower (10) penetrates the lower wall of the filter box (8). The filter box (8) is equipped with a filter mechanism for filtering dust.
2. The shot blasting machine for the outer wall of steel pipes according to claim 1, characterized in that, The filtration mechanism includes a pair of support blocks (11), both of which are fixedly installed on the inner wall of the filter box (8); A first square frame (12) is provided on the upper surface of a pair of bearing blocks (11), and a second square frame (13) is provided above the first square frame (12). A connecting rod (14) is fixedly installed between the first square frame (12) and the second square frame (13). A carrier net (15) is fixedly installed in both the first frame (12) and the second frame (13), and filter cotton (16) is filled between a pair of carrier nets (15).
3. The shot blasting machine for the outer wall of steel pipes according to claim 1, characterized in that, Three air blowers (17) are fixedly installed inside the housing (4), and an air outlet (18) is provided on the lower wall of the air blower (17). A connecting pipe (19) is fixedly installed on the upper end face of the housing (4). One end of the connecting pipe (19) is connected to the air outlet of the exhaust fan (10), and the other end is sealed. The upper wall of the blower pipe (17) is fixedly connected to a delivery pipe (20), and the end of the delivery pipe (20) away from the blower pipe (17) is fixedly connected to the connecting pipe (19).
4. The shot blasting machine for the outer wall of steel pipes according to claim 1, characterized in that, An opening is formed on one side wall of the filter box (8), and a sealing door (21) for sealing the opening is hinged to one side wall of the filter box (8).