Pipeline dredging device

Abstract

The utility model belongs to the technical field of pipeline dredging, and particularly relates to a pipeline dredging device which comprises a self-pressing slurry pipe and a dredging device body arranged at the tail end of the self-pressing slurry pipe, the dredging device body comprises a connecting cylinder and a piston assembly arranged in the connecting cylinder, and the piston assembly comprises a sliding plate and a sliding rod. The piston assembly is connected with the connecting cylinder in a sliding mode, a ventilation hole is formed in the connecting cylinder, a ventilation assembly is arranged in the ventilation hole in a sliding mode, the ventilation assembly comprises at least two limiting plates arranged in parallel, the limiting plates and the ventilation hole are consistent in shape, a plurality of connecting rods are arranged between the limiting plates, and a certain gap is formed between the connecting rods. The bottom of the self-pressing slurry pipe is connected with the dredging device, when the self-pressing slurry pipe is blocked, the telescopic air cylinder drives the sliding plate to slide in the connecting cylinder, slurry in the self-pressing slurry pipe is pushed through compressed air, workers do not need to climb to a high position, the safety of the workers is protected, and meanwhile the cleaning time is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline dredging, and particularly relates to a pipeline dredging device. Background Art

[0002] Self-pressure slurry pipelines are common in alumina production. They are slurry pipelines that use pipelines to drain various materials from a high position to a designated low position. Due to the high content of solid particles in the slurry and poor fluidity of the slurry, solid particles will stay on the inner wall of the pipeline to form scale after long-term operation, reducing the flow rate of the slurry in the pipeline and often causing pipeline blockage, so the pipeline needs to be cleaned regularly.

[0003] Self-pressure slurry pipelines are generally installed at high altitudes. When cleaning manually, operators need to stand on the pipeline and strike with a sledgehammer, and then wash with water at the same time to achieve the purpose of dredging; when using a high-pressure cleaning vehicle to clean, professional personnel need to first open a cleaning groove in the slurry pipeline, and then use a high-pressure cleaning gun to clean the pipeline, resulting in a large amount of cleaning water entering the production process. Whether it is manual cleaning or using a high-pressure cleaning vehicle to clean, a large amount of water is required for flushing, and both are high-altitude operations. Dangerous operations increase safety risks, and a large amount of non-production water entering the process increases production costs and cleaning costs. Content of the Utility Model

[0004] Aiming at the technical problems existing in the background art, the purpose of the utility model is to provide a pipeline dredging device that can dredge the self-pressure slurry pipeline without manual high-altitude operation or introducing liquid cleaning into the self-pressure slurry pipeline.

[0005] To achieve the above purpose, the technical solution provided by the utility model is as follows:

[0006] A pipeline dredging device includes a self-pressure slurry pipe and a dredging device arranged at the end of the self-pressure slurry pipe. The dredging device includes a connecting cylinder and a piston assembly arranged inside the connecting cylinder. The piston assembly includes a sliding plate and a sliding rod. The piston assembly is slidably connected to the connecting cylinder. An air exchange hole is arranged on the connecting cylinder, and an air exchange component is slidably arranged in the air exchange hole. The air exchange component includes at least two parallel limit plates. The limit plates have the same shape as the air exchange hole. A number of connecting rods are arranged between the limit plates, and there is a certain gap between the connecting rods.

[0007] Preferably, one end of the air exchange component is provided with a driving member Ⅰ for driving the air exchange component to slide.

[0008] Preferably, support plates are arranged on both sides of the air exchange hole. The driving member Ⅰ is arranged inside the support plates. A threaded hole Ⅰ is arranged on the driving member Ⅰ, and a threaded hole Ⅱ is arranged on the support plates.

[0009] Preferably, one end of the support plate is provided with a connection cover, and the connection cover is provided with a threaded hole III, and the threaded hole I, the threaded hole II and the threaded hole III are arranged in alignment.

[0010] Preferably, the connection cover is provided with a bolt, and the bolt passes through the threaded hole I, the threaded hole II and the threaded hole III to connect the connection cover, the support plate and the driving member I.

[0011] Preferably, one end of the connection cylinder is provided with a connection groove, a threaded section I is arranged in the connection groove, one end of the connection cylinder is provided with a support cylinder, one end of the support cylinder is provided with a convex plate, a threaded section II is arranged on the convex plate, and the convex plate extends into the connection groove, and the threaded section I and the threaded section II are connected in a matching manner.

[0012] Preferably, the bottom of the support cylinder is provided with a connection hole, and the sliding rod is slidably connected in the connection hole.

[0013] Preferably, a plurality of driving members II are arranged in the support cylinder, and one end of the driving member II is connected to the sliding plate.

[0014] Preferably, both sides of the connection cylinder are provided with support frames for supporting the dredging device, the bottom of the support frame is arranged parallel to the ground, and the dredging device is obliquely connected to the support frame.

[0015] The utility model has the following advantages and beneficial effects:

[0016] First, in the utility model, the bottom of the self-pressure slurry pipe is connected to the dredging device. When the self-pressure slurry pipe is blocked, the telescopic cylinder drives the sliding plate to slide in the connection cylinder, and the compressed air pushes the slurry inside the self-pressure slurry pipe, eliminating the need for workers to climb to high places, protecting the safety of workers, and reducing the cleaning time at the same time.

[0017] Second, in the utility model, the ventilation component slides in the ventilation hole. When the limiting plate blocks the ventilation hole, the inside of the connection cylinder is airtight. When the limiting plate leaves the ventilation hole, the gap between the connecting rods leaks out, enabling the air inside and outside the connection cylinder to exchange, allowing the sliding plate to reciprocate.

[0018] Third, in the utility model, the structure is simple and the operation is convenient. The pneumatic dredging method can not only meet the dredging requirements, but also reduce the cleaning cost. Description of the Drawings

[0019] Figure 1 is a three-dimensional view of a pipeline dredging device provided by the utility model;

[0020] Figure 2 is a schematic structural diagram of the connection cylinder of a pipeline dredging device provided by the utility model;

[0021] Figure 3Cross-sectional view of the connecting cylinder of a pipeline dredging device provided by the present utility model;

[0022] Figure 4 Schematic structural diagram of the air exchange component of a pipeline dredging device provided by the present utility model;

[0023] Figure 5 Schematic connection diagram of the air exchange component, support plate and connection cover of a pipeline dredging device provided by the present utility model;

[0024] Figure 6 Schematic structural diagram of the support cylinder of a pipeline dredging device provided by the present utility model;

[0025] Figure 7 Cross-sectional connection view of the piston assembly of a pipeline dredging device provided by the present utility model;

[0026] Figure 8 Schematic connection diagram of the self-pressurized slurry pipe and the dredging device of a pipeline dredging device provided by the present utility model;

[0027] Icon: 1 - self-pressurized slurry pipe, 2 - connecting cylinder, 21 - air exchange hole, 22 - connecting groove, 23 - support frame, 3 - support plate, 31 - threaded hole Ⅰ, 4 - telescopic motor, 41 - threaded hole Ⅱ, 5 - limiting plate, 51 - connecting rod, 6 - connection cover, 61 - threaded hole Ⅲ, 62 - bolt, 7 - support cylinder, 71 - convex plate, 72 - connection hole, 8 - sliding plate, 81 - sliding rod, 9 - telescopic cylinder. Detailed implementation manners

[0028] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model.

[0029] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0030] Embodiment

[0031] As Figure 1 、 2As shown in Figures 3, 7, and 8, a pipeline dredging device includes a self - pressurizing slurry pipe 1 and a dredging device arranged at the end of the self - pressurizing slurry pipe 1. The self - pressurizing slurry pipe 1 is inclined, and the dredging device is arranged at the higher - altitude end of the self - pressurizing slurry pipe 1. The dredging device includes a connecting cylinder 2 and a piston assembly arranged inside the connecting cylinder 2. The piston assembly includes a sliding plate 8 and a sliding rod 81. The piston assembly is slidably connected to the connecting cylinder 2. When the sliding plate 8 moves towards the self - pressurizing slurry pipe 1, the air inside is squeezed, pushing the scale inside the self - pressurizing slurry pipe 1 and playing a role in dredging the pipeline.

[0032] As Figure 1 , 2 As shown in Figures 3, 4, 5, 7, and 8, an air - exchange hole 21 is arranged on the connecting cylinder 2, and an air - exchange component is slidably arranged inside the air - exchange hole 21. The air - exchange component includes at least two parallel - arranged limiting plates 5. The limiting plates 5 have the same shape as the air - exchange hole 21. A number of connecting rods 51 are arranged between the limiting plates 5, and there is a certain gap between the connecting rods 51. When one of the limiting plates 5 is inside the air - exchange hole 21, the inside of the connecting cylinder 2 is in a closed state, which is convenient for pushing the sliding plate 8 to clean the inside of the self - pressurizing slurry pipe 1. When the limiting plate 5 leaves the air - exchange hole 21, the connecting rods 51 are inside the air - exchange hole 21. Due to the certain gap between the connecting rods 51, air flows into the connecting cylinder 2 between the connecting rods 51, reducing the pressure inside the connecting cylinder 2 and facilitating the reset of the sliding plate 8.

[0033] As Figure 1 , 2 As shown in Figures 3, 4, 5, and 8, one end of the air - exchange component is provided with a driving part Ⅰ for driving the sliding of the air - exchange component. The driving part Ⅰ is a telescopic motor 4. Support plates 3 are arranged on both sides of the air - exchange hole 21. The telescopic motor 4 is arranged inside the support plates 3. Threaded holes Ⅰ31 are arranged on the support plates 3, threaded holes Ⅱ41 are arranged on the telescopic motor 4, and a connecting cover 6 is arranged at one end of the support plates 3. Threaded holes Ⅲ61 are arranged on the connecting cover 6. The threaded holes Ⅰ31, Ⅱ41, and Ⅲ61 are arranged in alignment. A bolt 62 is arranged on the connecting cover 6. The bolt 62 passes through the threaded holes Ⅰ31, Ⅱ41, and Ⅲ61 to connect the connecting cover 6, the support plates 3, and the driving part Ⅰ. Since both the connecting cylinder 2 and the air - exchange hole 21 are arc - shaped, the support plates 3 are also arranged in an arc - shaped manner. The inner side of the connecting cover 6 fits with the outer side of the support plates 3 and is also arc - shaped, while the outer side of the connecting cover 6 is designed as a square. In this way, when the bolt 62 is connected, it is convenient for positioning.

[0034] As Figure 1 , 2, as shown in Figures 3, 6, 7, and 8, one end of the connecting cylinder 2 is provided with a connecting groove 22. The connecting groove 22 is recessed towards the inside of the connecting cylinder 2. A threaded section I is arranged in the connecting groove 22. One end of the connecting cylinder 2 is provided with a support cylinder 7. One end of the support cylinder 7 is provided with a convex plate 71. A threaded section II is arranged on the convex plate 71. The convex plate 71 extends into the connecting groove 22. The threaded section I and the threaded section II are connected in a matching manner. A connecting hole 72 is arranged at the bottom of the support cylinder 7. The sliding rod 81 is slidably connected in the connecting hole 72. Both the connecting hole 72 and the sliding rod 81 are arranged at the center position of the sliding plate 8. The connecting hole 72 can limit the sliding rod 81 to prevent the sliding rod 81 from shifting during the sliding process.

[0035] As Figure 1 , 2 , as shown in Figures 3, 7, and 8, several driving members II are arranged in the support cylinder 7. The driving member II is a telescopic cylinder 9. One end of the telescopic cylinder 9 is connected to the sliding plate 8. The telescopic cylinder 9 is supported in the support cylinder 7. When it is necessary to clean the self-pressure slurry pipe 1, the telescopic cylinder 9 pushes the sliding plate 8 to move, squeezing the air in the connecting cylinder 2 and the self-pressure slurry pipe 1 to dredge the self-pressure slurry pipe 1. After the dredging is completed, the telescopic cylinder 9 drives the sliding plate 8 to reset.

[0036] As Figure 1 , 2 , as shown in Figure 8, support frames 23 for supporting the dredging device are arranged on both sides of the connecting cylinder 2. The bottom of the support frames 23 is arranged parallel to the ground. The dredging device is obliquely connected to the support frames 23. Since the self-pressure slurry pipe 1 is obliquely arranged, if the dredging device is not provided with the support frames 23 and is directly connected to the end of the self-pressure slurry pipe 1, when the sliding plate 8 slides, the internal air pressure of the self-pressure slurry pipe 1 changes, and the pipeline will shake inside. After a period of time, the connection between the self-pressure slurry pipe 1 and the dredging device is likely to fail. After the support frames 23 are provided, the shaking of the pipeline can be reduced, and the connection between the self-pressure slurry pipe 1 and the dredging device is made more stable.

[0037] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A pipeline dredging device, comprising a self-pressurized slurry pipe and a dredging device arranged at the end of the self-pressurized slurry pipe, characterized in that: The dredging device includes a connecting cylinder and a piston assembly arranged inside the connecting cylinder, the piston assembly includes a sliding plate and a sliding rod, the piston assembly and the connecting cylinder are slidably connected, the connecting cylinder is provided with a ventilation hole, a ventilation assembly is slidably arranged in the ventilation hole, the ventilation assembly includes at least two parallel limit plates, the limit plates and the ventilation holes are consistent in shape, a plurality of connecting rods are arranged between the limit plates, and there are gaps between the connecting rods.

2. A pipeline dredging device according to claim 1, characterized in that: A driving member I for driving the ventilation component to slide is arranged at one end of the ventilation component.

3. A pipeline dredging device according to claim 2, characterized in that: Support plates are arranged on both sides of the ventilation hole, the driving member I is arranged in the supporting plate, a threaded hole I is arranged on the driving member I, and a threaded hole II is arranged on the supporting plate.

4. A pipeline dredging device according to claim 3, characterized in that: A connection cover is arranged at one end of the support plate, a threaded hole III is arranged on the connection cover, and the threaded hole I, the threaded hole II and the threaded hole III are arranged in alignment.

5. A pipeline dredging device according to claim 4, characterized in that: The connection cover is provided with bolts, and the bolts pass through threaded hole I, threaded hole II and threaded hole III to connect the connection cover, the support plate and the driving member I.

6. A pipeline dredging device according to claim 1, characterized in that: A connecting groove is provided at one end of the connecting tube, a threaded section I is provided in the connecting groove, a supporting tube is provided at one end of the connecting tube, a convex plate is provided at one end of the supporting tube, a threaded section II is provided on the convex plate, the convex plate extends into the connecting groove, and the threaded section I and the threaded section II are matched and connected.

7. A pipeline dredging device according to claim 6, characterized in that: A connecting hole is provided at the bottom of the supporting tube, and the sliding rod is slidably connected in the connecting hole.

8. A pipeline dredging device according to claim 7, characterized in that: A plurality of driving members II are arranged in the support tube, and one end of the driving member II is connected to the sliding plate.

9. A pipeline dredging device according to claim 1, characterized in that: Support frames for supporting the dredging device are arranged on both sides of the connecting tube, the bottom of the support frame is arranged parallel to the ground, and the dredging device and the support frame are connected obliquely.

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