A reinforcing connecting device for a wear segment of a slurry pipeline

Abstract

The utility model discloses a kind of reinforcing connecting devices of slurry pipeline wear-resistant section, belong to pipeline connection technical field, including transmission pipeline, flange one, connecting pipe, flange two, long bolt, nut one, gasket one, long screw, nut two, gasket two, transmission pipeline inner wall and connecting pipe inner wall are equipped with wear layer, transmission pipeline is connected through connecting pipe clamping groove cooperation between, long bolt is fixed transmission pipeline by flange one, long screw is reinforced transmission pipeline and the connection of connecting pipe by flange one and flange two.The utility model is effectively resisted slurry wear by setting wear layer, by multiple fastening reinforcement connection, ensure that connection is stable, and it is convenient to dismount maintenance, prolong service life.

Description

Technical Field

[0001] This utility model relates to the field of pipeline connection device technology, and in particular to a reinforcement connection device for the wear-resistant section of a slurry pipeline. Background Technology

[0002] In modern industrial production, slurry transportation is widely used in mining, metallurgy, power, and chemical industries. Because slurry contains solid particles, it will continuously impact, rub, and wear on the transportation pipelines. This makes the operating environment of slurry pipelines more severe than that of ordinary liquid pipelines. Especially at the pipeline connection points, due to changes in fluid velocity, eddy current effects, and the discontinuity of the connection structure itself, these points become weak points for wear and leakage. Once wear and leakage occur at these points, it will not only lead to material loss and environmental pollution, but also affect the normal operation of the entire production line, resulting in huge economic losses and safety hazards.

[0003] Existing slurry pipelines are mostly connected by flanges and welds. While flanges are easy to install and disassemble, their sealing and wear resistance are often insufficient to withstand the long-term scouring of highly abrasive slurries, leading to gasket wear, flange corrosion, and ultimately leakage. Welded connections, on the other hand, provide high connection strength and sealing, but once wear and damage occur, the repair and replacement process is extremely complex, requiring pipe cutting and re-welding, which is time-consuming and labor-intensive. In large-scale slurry transport systems, the maintenance costs and downtime losses are enormous. Regardless of the connection method, the rigidity and stability of pipeline connections are challenged under long-term high-pressure, high-velocity slurry scouring. Prolonged vibration and impact can cause the connection to loosen or even lead to structural damage.

[0004] To address these issues, wear-resistant linings are sometimes added to the inner wall of pipes. However, these linings are often discontinuous at the joints, resulting in interruptions and gaps that become points of concentrated wear. Even with specially designed wear-resistant connectors, the overall synergistic effect between the connectors and the pipe body is often overlooked, leading to insufficient connection strength and inconvenient maintenance. This is especially true in situations where frequent maintenance and replacement of worn parts are required. Existing technologies have significant shortcomings in achieving efficient, wear-resistant, stable, and easy-to-disassemble connections.

[0005] Therefore, this utility model proposes a reinforcement connection device for the wear-resistant section of a slurry pipeline to overcome the shortcomings of the prior art. Utility Model Content

[0006] In view of the problems existing in the reinforcement connection device for the wear-resistant section of slurry pipeline, such as being subject to impact and wear from slurry, insufficient connection stability, and inconvenience in maintenance and replacement, this utility model aims to provide a reinforcement connection device for the wear-resistant section of slurry pipeline with an improved structure that can effectively solve the above problems.

[0007] This utility model provides a reinforcement connection device for the wear-resistant section of a transmission pipeline, including a transmission pipeline, a first wear-resistant layer, a first flange, a pipeline mounting hole, a first connection mounting hole, a connecting pipe, a groove, a second wear-resistant layer, a second flange, a second connection mounting hole, a long bolt, a first nut, a first gasket, a long thread, a second nut, and a second gasket.

[0008] The inner wall of the transmission pipe is fixedly equipped with a wear-resistant layer 1, and the outer wall is fixedly connected with a flange 1. The flange 1 has pipe installation holes and connection installation holes 1 around its inner perimeter. The front and rear sides of the connecting pipe are both equipped with slots. The inner wall of the connecting pipe is fixedly equipped with a wear-resistant layer 2, and the outer wall is fixedly connected with a flange 2. The flange 2 has connection installation holes 2 around its inner perimeter.

[0009] Furthermore, the transmission pipes are connected by a connecting pipe, whose groove is fitted to the outer wall of the two transmission pipes. Long bolts pass sequentially through the pipe mounting holes of flange one on the rear transmission pipe and flange one on the front transmission pipe. Gasket one is installed inside the pipe mounting hole. Nut one is threaded on the front side of the long bolt. The connection mounting hole one of flange one and the connection mounting hole two of flange two are aligned with each other. Long threads pass sequentially through the rear gasket two, the connection mounting hole one of flange one on the rear transmission pipe, the connection mounting hole two of flange two, and the connection mounting hole one of flange one on the front transmission pipe. Gasket two is installed inside the connection mounting hole one and the connection mounting hole two. Nut two is threaded on both the front and rear sides of the long threads to fix the two transmission pipes and the connecting pipe together.

[0010] Preferably, the groove of the connecting pipe extends circumferentially along the outer wall of the transmission pipe.

[0011] Preferably, the pipe mounting holes and connection mounting holes are arranged in a ring array around the inside of the flange.

[0012] Preferably, both gasket one and gasket two are made of elastic sealing material.

[0013] Preferably, long bolts and nuts enable quick assembly and disassembly, either manually or with the aid of tools.

[0014] Preferably, the long threads and the nut are used to provide preload to further reinforce the connection between the transmission pipe and the connecting pipe.

[0015] Preferably, both the first wear-resistant layer and the second wear-resistant layer are made of ceramic and polymer wear-resistant materials.

[0016] This utility model has the following beneficial effects: 1. This utility model solves the problem of impact and wear of slurry at the connection of slurry pipes in the prior art by setting wear-resistant layers on both the inner wall of the slurry pipe and the inner wall of the connecting pipe, thereby extending the service life of the pipe and reducing maintenance costs.

[0017] 2. This utility model solves the problem of insufficient stability of slurry pipeline connections in the prior art by adopting a flange connection combined with a slotted connection and using long bolts and long threads for step-by-step tightening and reinforcement. Attached Figure Description

[0018] Figure 1 This is a perspective view of a reinforcement connection device for the wear-resistant section of a slurry pipeline proposed in this utility model; Figure 2 This is a rear view of a reinforcement connection device for the wear-resistant section of a slurry pipeline proposed in this utility model. Figure 3 This is a right-side exploded view of a reinforcing connection device for a wear-resistant section of a slurry pipeline proposed in this utility model. Figure 4 This is a partial structural illustration of a reinforcement connection device for the wear-resistant section of a slurry pipeline proposed in this utility model. Figure 5 This is a schematic diagram of a partial structure in a reinforcement connection device for a wear-resistant section of a slurry pipeline proposed in this utility model; Figure 6 This is a cross-sectional view of a partial structure in a reinforcement connection device for a wear-resistant section of a slurry pipeline proposed in this utility model.

[0019] Legend: 1. Transmission pipe; 2. Wear-resistant layer one; 3. Flange one; 4. Pipe mounting hole; 5. Connection mounting hole one; 6. Connecting pipe; 7. Groove; 8. Wear-resistant layer two; 9. Flange two; 10. Connection mounting hole two; 11. Long bolt; 12. Nut one; 13. Gasket one; 14. Long thread; 15. Nut two; 16. Gasket two. Detailed Implementation

[0020] Please refer to Figures 1 to 6 This utility model provides a reinforcement connection device for the wear-resistant section of a slurry pipeline, which aims to solve the problem that the connection of the slurry pipeline is subject to impact and wear by the slurry and the connection stability is insufficient in the prior art.

[0021] like Figure 1 and Figure 2As shown, the reinforced connection device for the wear-resistant section of the slurry pipeline includes two transmission pipelines 1 and connectors for connecting the slurry pipelines. The inner wall of the transmission pipeline 1 is fixedly equipped with a wear-resistant layer 2, and the outer wall of the transmission pipeline 1 is fixedly connected with a flange 3. The flange 3 has pipe mounting holes 4 and connection mounting holes 5 around its interior. The connection mounting holes 5 are located between each pipe mounting hole 4. The connectors include a connecting pipe 6, a flange 9, a long bolt 11, a nut 12, a gasket 13, a long thread 14, a nut 15, and a gasket 16. The front and rear sides of the connecting pipe 6 are provided with grooves 7. The inner wall of the connecting pipe 6 is fixedly equipped with a wear-resistant layer 8, and the outer wall of the connecting pipe 6 is fixedly connected with a flange 9. The flange 9 has connection mounting holes 10 around its interior. The wear-resistant layer 2 and the wear-resistant layer 8 are provided to enhance the wear resistance of the transmission pipeline 1 and the connecting pipe 6.

[0022] A connecting pipe 6 is fitted between the two transmission pipes 1. The connecting pipe 6 is fitted to the outer wall of the two transmission pipes 1 through a groove 7. A gasket 13 and a long bolt 11 are fitted into the pipe mounting hole 4 of the flange 1-3 of the transmission pipe 1. A nut 12 is threaded on the front side of the long bolt 11. The connection mounting hole 5 of the flange 1-3 is aligned with the connection mounting hole 10 of the flange 2-9. A gasket 2-16 and a long thread 14 are fitted into the connection mounting hole 5 and the connection mounting hole 2-10. Nuts 2-15 are threaded on both the front and rear sides of the long thread 14. This structure forms the basic framework of the slurry pipeline connection section, providing a stable platform for the reinforcement connection of the slurry pipeline. At the same time, the wear-resistant layer 2 and the wear-resistant layer 8 effectively resist the erosion of the slurry and extend the service life of the device.

[0023] A wear-resistant layer 2 is fixedly installed on the inner wall of the transmission pipeline 1. This layer protects the pipeline 1 from impact and wear caused by the slurry. A flange 3 is fixedly connected to the outer wall of the transmission pipeline 1. Pipe mounting holes 4 and connection mounting holes 5 are formed around the inside of the flange 3. The connection mounting holes 5 are located between each pipe mounting hole 4. These holes provide a connection base for two transmission pipelines 1. The two transmission pipelines 1 are then connected... The device is connected by a connecting pipe 6. The front and rear sides of the connecting pipe 6 are provided with slots 7. The connecting pipe 6 is slidably connected to the outer wall of the two transmission pipes 1 through the slots 7. The inner wall of the connecting pipe 6 is fixedly installed with a second wear-resistant layer 8. The second wear-resistant layer 8 protects the slots 7 and prevents the connecting pipe 6 from being impacted and worn by the slurry. The outer wall of the connecting pipe 6 is fixedly connected with a second flange 9. The inner perimeter of the second flange 9 is provided with second connection mounting holes 10. The second connection mounting holes 10 are aligned with the first connection mounting hole 5 to provide an installation platform for the reinforcement of the equipment.

[0024] A long bolt 11 is slidably connected inside the pipe mounting hole 4. A nut 12 is threadedly connected to the front side of the long bolt 11. Gaskets 13 are installed between the long bolt 11 and the flange 3 of the rear transmission pipe 1, and between the nut 12 and the flange 3 of the front transmission pipe 1. The long bolt 11 is rotated to pass through the pipe mounting hole 4 in the rear flange 3, the rear gasket 13, the pipe mounting hole 4 in the front flange 3, and the front gasket 13 in sequence, and is threadedly connected to the nut 12, fixing the two transmission pipes 1 in place and making the connection between the two transmission pipes 1 more stable. The gasket 13 enhances the sealing of the connection and prevents slurry from seeping in. The long bolt 11 and the nut 12... 12. To facilitate quick assembly and disassembly, and easy equipment maintenance and replacement, the inner walls of the connecting mounting hole 15 and the connecting mounting hole 20 are slidably connected with long threads 14. Nuts 25 are threadedly connected to the front and rear sides of the long threads 14. A gasket 26 is installed between the nut 215 and the flange 13. The long threads 14 pass through the rear gasket 26, the connecting mounting hole 15 of the rear flange 13, the connecting mounting hole 20 of the flange 29, the connecting mounting hole 15 of the front flange 13, and the front gasket 26 in sequence. By rotating the nuts 215 threaded to the front and rear sides of the long threads 14, the two transmission pipes 1 and the connecting pipe 6 are fixed, so that the connecting pipe 6 strengthens the connection between the two transmission pipes 1.

[0025] The inner wall of the transmission pipeline 1 is fixedly equipped with a wear-resistant layer 2, which is made of ceramic and polymer wear-resistant materials. The wear-resistant layer 2 protects the transmission pipeline 1 from impact and wear caused by the slurry. The outer wall of the transmission pipeline 1 is fixedly connected to a flange 3. The flange 3 has pipe mounting holes 4 and connection mounting holes 5 on its inner perimeter. The connection mounting holes 5 are located between each pipe mounting hole 4. The pipe mounting holes 4 and connection mounting holes 5 are arranged in a ring array on the inner perimeter of the flange 3. The pipe mounting holes 4 and connection mounting holes 5 on the inner perimeter of the flange 3 provide a connection base for two transmission pipelines 1.

[0026] A connecting pipe 6 is fitted between the two transmission pipes 1. The front and rear sides of the connecting pipe 6 are provided with grooves 7. The grooves 7 extend circumferentially along the outer wall of the transmission pipe 1. The connecting pipe 6 is slidably connected to the outer wall of the two transmission pipes 1 through the grooves 7, providing a foundation for the reinforcement between the two transmission pipes 1. A second wear-resistant layer 8 is fixedly installed on the inner wall of the connecting pipe 6. The second wear-resistant layer 8 is made of ceramic and polymer wear-resistant materials. The second wear-resistant layer 8 protects the grooves 7, so that the connecting pipe 6 will not be subjected to impact wear from the slurry. A second flange 9 is fixedly connected to the outer wall of the connecting pipe 6. The second flange 9 has connection mounting holes 10 on its inner perimeter. The second connection mounting holes 10 are aligned with the first connection mounting hole 5, providing an installation platform for the reinforcement of the equipment.

[0027] A long bolt 11 is slidably connected inside the pipe mounting hole 4. A nut 12 is threadedly connected to the front side of the long bolt 11. Gaskets 13 are installed between the long bolt 11 and the flange 3 of the rear transmission pipe 1, and between the nut 12 and the flange 3 of the front transmission pipe 1. Gaskets 13 are made of elastic sealing material. Gaskets 13 enhance the sealing of the connection and prevent slurry from seeping in. The long bolt 11 is rotated and passes through the pipe mounting hole 4 of the rear flange 3, the rear gasket 13, the pipe mounting hole 4 of the front flange 3, and the front gasket 13 in sequence, and is threadedly connected to the nut 12 to fix the two transmission pipes 1, making the connection between the two transmission pipes 1 more stable. The long bolt 11 and the nut 12 can be quickly disassembled and assembled manually or with the assistance of tools, which is convenient for equipment maintenance and replacement.

[0028] The inner walls of the connecting mounting hole 15 and the connecting mounting hole 20 are slidably connected with long threads 14. Nuts 25 are threadedly connected to the front and rear sides of the long threads 14. A gasket 26 is installed between the nut 215 and the flange 13. The gasket 216 is made of elastic sealing material. The gasket 216 enhances the sealing of the connection and prevents slurry from seeping in. The long threads 14 pass through the rear gasket 216, the connecting mounting hole 15 of the rear flange 13, the connecting mounting hole 210 of the flange 29, the connecting mounting hole 15 of the front flange 13, and the front gasket 216 in sequence. By rotating the nuts 215 threaded to the front and rear sides of the long threads 14, the two transmission pipes 1 and the connecting pipe 6 are fixed, so that the connecting pipe 6 strengthens the connection between the two transmission pipes 1. The long threads 14 and the nuts 215 are used to provide pre-tightening force to further strengthen the connection between the transmission pipes 1 and the connecting pipe 6.

[0029] Working principle: When it is necessary to connect two transmission pipes 1, first align the connecting ends of the two transmission pipes 1, and let the outer wall of one of the transmission pipes 1 slide into the interior of the connecting pipe 6 through the slot 7. The inner wall of the connecting pipe 6 is fixedly installed with a wear-resistant layer 8, which is made of ceramic and polymer wear-resistant materials, effectively protecting the slot 7 from slurry wear and ensuring the smoothness of the sliding connection. The slot 7 extends circumferentially along the outer wall of the transmission pipe 1, providing a basic positioning for subsequent reinforcement connection. A flange 3 is fixedly connected to the outer wall of the transmission pipe 1. Pipe mounting holes 4 and connection mounting holes 5 are opened around the inside of the flange 3. The connection mounting holes 5 are opened between each pipe mounting hole 4, and the pipe mounting holes 4 and connection mounting holes 5 are arranged in a ring array around the inside of the flange 3. A flange 9 is fixedly connected to the outer wall of the connecting pipe 6. Connection mounting holes 10 are opened around the inside of the flange 9. During the assembly process, the operator aligns the ends of the two transmission pipes 1 with the connecting pipe 6, so that the pipe mounting holes 4 and connection mounting holes 5 on the flange 3 are aligned with the corresponding holes on the flange 3 of the other transmission pipe 1, and the connection mounting holes 10 on the flange 9 of the connecting pipe 6. The next step is to fix the two transmission pipes 1 by connecting and fixing them through the pipe mounting hole 4. Specifically, the long bolt 11 is passed through the pipe mounting hole 4 of the flange 3 of the rear transmission pipe 1, the rear gasket 13, the pipe mounting hole 4 of the flange 3 of the front transmission pipe 1, and the front gasket 13 in sequence. Then, the front thread of the long bolt 11 is connected to the nut 12. The gasket 13 is made of elastic sealing material and is placed between the long bolt 11 and the flange 3, and between the nut 12 and the flange 3. By tightening the nut 12, the long bolt 11 tightly pulls and fixes the two transmission pipes 1 together. The gasket 13 deforms under pressure, which enhances the sealing of the connection and effectively prevents slurry from seeping in. The threaded connection design of the long bolt 11 and the nut 12 allows for quick disassembly and assembly with manual and tool assistance, which greatly facilitates the maintenance and replacement of the equipment. After the first step of fixing is completed, the second step of reinforcement is carried out to further enhance the stability of the connection: After aligning the first mounting hole 5 and the second mounting hole 10, the long thread 14 is passed sequentially through the rear gasket 16, the first mounting hole 5 of the flange 3 of the rear transmission pipe 1, the second mounting hole 10 of the flange 9, the first mounting hole 5 of the flange 3 of the front transmission pipe 1, and the front gasket 16. The gasket 16 is also made of elastic sealing material and is placed between the nut 15 and the flange 3 to provide a seal while reinforcing. The front and rear sides of the long thread 14 are threaded to the nut 15. By rotating the front and rear sides of the long thread 14... Nut 15 generates a strong pre-tightening force, tightly clamping flange 3 of the two transmission pipes 1 and flange 9 of the connecting pipe 6 together. This secondary reinforcement method makes the connecting pipe 6 not only provide connection, but also serve as a reinforcing component of the overall structure, significantly improving the impact resistance, vibration resistance and long-term stability of the entire slurry pipeline connection section. Wear-resistant layer 2 is fixedly installed on the inner wall of the transmission pipe 1, and wear-resistant layer 8 is fixedly installed on the inner wall of the connecting pipe 6. Both wear-resistant layers are made of ceramic and polymer wear-resistant materials, which can directly contact the slurry and effectively resist the impact and erosion brought by the slurry, thereby protecting the structure of the pipeline body and the connection and greatly extending the service life of the device.

Claims

1. A reinforcement connection device for the wear-resistant section of a slurry pipeline, comprising: Transmission pipe (1), connecting pipe (6), long bolt (11), long thread (14) The transmission pipe (1) is characterized in that a wear-resistant layer (2) is fixedly installed on the inner wall and a flange (3) is fixedly connected to the outer wall. The flange (3) has pipe mounting holes (4) and connection mounting holes (5) around its inner perimeter. The connection mounting holes (5) are located between each pipe mounting hole (4). The connecting pipe (6) has grooves (7) on both the front and rear sides. The connecting pipe (6) has a wear-resistant layer (8) fixedly installed on the inner wall. The connecting pipe (6) has a flange (9) fixedly connected to the outer wall. The flange (9) has connection mounting holes (10) around its inner perimeter. The long bolt (11) has a nut (12) threadedly connected to its front side. A gasket (13) is installed between the long bolt (11) and the nut (12). The long thread (14) has a nut (15) threadedly connected to its front and rear sides. A gasket (16) is installed between the nut (15) and the flange (3).

2. The reinforcing connection device for the wear-resistant section of the slurry pipeline according to claim 1, characterized in that, A connecting pipe (6) is slidably connected between the two transmission pipes (1). The groove (7) of the connecting pipe (6) is slidably connected to the outer wall of the two transmission pipes (1). A long bolt (11) is slidably connected to the pipe mounting hole (4) of the flange (3) of the transmission pipe (1). The long bolt (11) passes through the pipe mounting hole (4) of the rear flange (3), the rear gasket (13), the pipe mounting hole (4) of the front flange (3), and the front gasket (13) in sequence, and is threadedly connected to the nut (12).

3. The reinforcing connection device for the wear-resistant section of the slurry pipeline according to claim 1, characterized in that, The connection mounting hole 1 (5) of flange 1 (3) of transmission pipe (1) and the connection mounting hole 2 (10) of flange 2 (9) of connecting pipe (6) are aligned with each other. The connection mounting hole 1 (5) and the connection mounting hole 2 (10) are slidably connected by long threads (14). The long threads (14) pass through the rear gasket 2 (16), the connection mounting hole 1 (5) of the rear flange 1 (3), the connection mounting hole 2 (10) of the flange 2 (9), the connection mounting hole 1 (5) of the front flange 1 (3), and the front gasket 2 (16) in sequence. The two transmission pipes (1) and the connecting pipe (6) are fixed by rotating the nut 2 (15) connected to the front and rear threads of the long threads (14).

4. The reinforcing connection device for the wear-resistant section of the slurry pipeline according to claim 1, characterized in that, The inner wall of the transmission pipe (1) is fixedly installed with a wear-resistant layer (2), which protects the transmission pipe (1).

5. The reinforcing connection device for the wear-resistant section of the slurry pipeline according to claim 1, characterized in that, The inner wall of the connecting pipe (6) is fixedly installed with a wear-resistant layer two (8), which protects the slot (7).

6. The reinforcing connection device for the wear-resistant section of the slurry pipeline according to claim 1, characterized in that, The slot (7) of the connecting pipe (6) is slidably connected to the outer wall of the two transmission pipes (1), providing a basis for reinforcement between the two transmission pipes (1).

7. The reinforcing connection device for the wear-resistant section of a slurry pipeline according to claim 1, characterized in that, The pipe mounting hole (4) has a sliding connection with a long bolt (11), and a nut (12) is threaded on the front side of the long bolt (11). Gaskets (13) are installed between the long bolt (11) and the rear flange (3) and between the nut (12) and the front flange (3).

8. The reinforcing connection device for the wear-resistant section of a slurry pipeline according to claim 1, characterized in that, The long bolt (11) is threaded to the nut (12) to fix the two transmission pipes (1), and the gasket (13) enhances the sealing of the connection.

9. The reinforcing connection device for the wear-resistant section of a slurry pipeline according to claim 1, characterized in that, The inner walls of the connecting mounting hole 1 (5) and the connecting mounting hole 2 (10) are slidably connected with long threads (14). Nuts 2 (15) are threaded on both the front and back sides of the long threads (14). Gaskets 2 (16) are installed between nuts 2 (15) and flange 1 (3). By rotating nuts 2 (15) threaded on the front and back sides of the long threads (14), the two transmission pipes (1) and the connecting pipe (6) are fixed, so that the connecting pipe (6) strengthens the connection between the two transmission pipes (1).

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