Emergency repair device for coal conveying pipeline

Abstract

The utility model discloses an emergency repair device for a coal conveying pipeline, which comprises a supplementary plate for limiting coal slurry diffusion, an end socket cavity cover connected with the supplementary plate and used for repairing a pipeline protrusion, a drainage device connected with the end socket cavity cover, a DN50 ball valve connected with the drainage device and a DN50 high-pressure hose, and coal slurry in the pipeline is conveyed into a drainage ditch through the drainage device and the pipeline. PAC and PAM agents are added into the coal slurry, solid-liquid separation is achieved, supernatant on the upper layer is pumped away, coal slime on the bottom layer is pulled to nearby stations through a tank truck to be recycled, the environment is protected, and meanwhile economic benefit losses are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipeline transportation and relates to an emergency repair device for a coal transportation pipeline. Background Art

[0002] In the pipeline coal transportation industry, when coal slurry is being transported, if a pipeline leaks: quality defects in the pipeline welds lead to weld tearing; if the pipeline is perforated due to third-party construction, man-made damage, or natural disasters such as floods, the pipeline needs to be repaired and sealed. If the leak is not plugged in time, the leaked material will directly endanger production safety, damage the surrounding environment, and cause economic losses. However, if a coal slurry pipeline in operation suddenly leaks and is damaged, it is difficult to stop transmission and reduce pressure immediately, and there is a lack of effective repair methods. Utility Model Content

[0003] The utility model aims to provide an emergency repair device for a coal transportation pipeline, which solves the problem of coal slurry leakage caused by pipeline leakage.

[0004] The technical scheme adopted by the utility model is an emergency repair device for coal transportation pipelines, comprising a pipeline to be repaired, a head cavity cover arranged on the pipe body of the pipeline to be repaired, and one end of the head cavity cover is connected to a drainage ditch through a valve.

[0005] The utility model is also characterized in that:

[0006] A patching plate is connected at the joint between the end cavity cover and the pipe to be repaired. The patching plate is arranged around the end edge of the end cavity cover, and the joint surface between the patching plate and the pipe to be repaired is an arc surface matching the pipe body.

[0007] A circumferential fillet weld is reserved on the outside of the patch plate;

[0008] The head cavity cover is a cover body of the piston structure, and the patch plate is arranged around the outer edge of the end of the piston cylinder away from the piston;

[0009] A drainage device is provided at one end of the cavity cover of the head away from the pipeline to be repaired, and the drainage device is connected to the drainage ditch;

[0010] The drainage device is connected to a DN50 high-pressure hose through a connecting pipe, and the DN50 high-pressure hose is connected to the drainage ditch;

[0011] The DN50 high-pressure hose is also provided with a DN50 ball valve.

[0012] The beneficial effects of the utility model are:

[0013] The utility model is used for the emergency repair device of the coal transportation pipeline. When the pipeline leaks, such as when the weld is torn due to quality defects of the pipeline weld, or when the pipeline is perforated due to third-party construction, human damage, natural disasters such as floods, etc., the leaking pipeline can be treated urgently, and the exposed coal slurry can be effectively treated, thereby protecting the environment and reducing economic losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a structural schematic diagram of an emergency repair device for a coal transportation pipeline.

[0015] In the figure, 1. pipeline to be repaired, 2. patch plate, 3. head cavity cover, 4. drainage device, 5. circumferential corner weld, 6. connecting pipeline, 7. DN50 ball valve, 8. DN50 high-pressure hose, 9. drainage ditch. DETAILED DESCRIPTION

[0016] The utility model is described in detail below with reference to the accompanying drawings and specific implementation modes.

[0017] Example 1

[0018] The utility model provides an emergency repair device for coal pipelines, such as Figure 1 As shown, it includes a pipeline to be repaired 1, a head cavity cover 3 for sealing the protrusions of the pipeline, a drainage device 4 and a patch plate 2 connected to the head cavity cover 3, a circumferential corner weld 5 reserved on the periphery of the patch plate 2, a connecting pipeline 6 connected to the drainage device 4, a DN50 ball valve 7 connected to the connecting pipeline 6, and a DN50 high-pressure hose 8 connected to the other side of the DN50 ball valve 7 to drain the coal slurry in the pipeline into the drainage ditch 9 for treatment.

[0019] Example 2

[0020] In this embodiment, a patch plate 2 is connected to the joint between the end cavity cover 3 and the pipe to be repaired 1. The patch plate 2 is arranged around the end edge of the end cavity cover 3, and the joint surface between the patch plate 2 and the pipe to be repaired 1 is a curved surface that matches the pipe body.

[0021] Example 3

[0022] The working principle of the utility model is as follows: it includes a pipeline to be repaired 1. When the pipeline leaks: for example, the quality defects of the pipeline weld cause the weld to tear; or the pipeline is perforated due to third-party construction, human damage, natural disasters such as floods, etc., the control is immediately notified to stop the pipeline, reduce the pressure in the pipeline, and use the head cavity cover 3 to cover the protrusions in the area of ​​the pipeline that needs to be repaired. The pipeline is sealed by the patch plate 2 to limit the diffusion of the coal slurry medium. The head cavity cover 3 is a cover body with a piston structure, and its piston structure can prevent the leakage point pressure from being too large to cause damage to the head cavity cover 3. The piston structure can play a buffering role. The circumferential angle weld 5 left when welding the patch plate 2 is connected to the head cavity cover 3. The drainage device 4 is connected to the head cavity cover 3. When the coal slurry fills the head cavity cover 3, the drainage device The device 4 is just below the piston inside the head cavity cover 3. The branch pipe drainage device 4 is connected to the short section to drain the coal slurry in the pipeline. The drainage device 4 is connected to a connecting pipe 6, which is connected to a DN50 ball valve 7 and a DN50 high-pressure hose 8. The coal slurry in the pipeline 1 is drained into a temporarily dug drainage ditch 9. PAC and PAM are added into the drainage ditch 9 to quickly separate the solid and liquid of the coal slurry. The supernatant is transported to the surrounding area by a water pump, and the bottom coal slurry is transported to a nearby pump station by a tank truck for treatment. After the coal slurry in the pipe is drained, the DN50 ball valve 7 is closed, and the protrusions in the pipeline repair area are welded and repaired. The above method can avoid the coal slurry from polluting the surrounding environment and minimize economic losses.

Claims

1. An emergency repair device for a coal pipeline, including a pipeline to be repaired (1), It is characterized in that It comprises a sealing head cavity cover (3) arranged on the pipe body of the pipeline (1) to be repaired, and one end of the sealing head cavity cover (3) is connected to the drainage groove (9) through a valve; A patch plate (2) is connected to the joint between the end cavity cover (3) and the pipe to be repaired (1); the patch plate (2) is arranged around the end edge of the end cavity cover (3); and the joint surface between the patch plate (2) and the pipe to be repaired (1) is a curved surface that matches the pipe body; A circumferential fillet weld (5) is reserved on the outer side of the patch plate (2); A drainage device (4) is provided at one end of the end cap cavity cover (3) away from the pipeline to be repaired (1), and the drainage device (4) is connected to the drainage ditch (9).

2. The emergency repair device for coal pipeline according to claim 1, It is characterized in that The head cavity cover (3) is a cover body of the piston structure, and the patch plate (2) is arranged around the outer edge of one end of the piston cylinder away from the piston.

3. The emergency repair device for coal pipeline according to claim 1, It is characterized in that The drainage device (4) is connected to a DN50 high-pressure hose (8) via a connecting pipe (6), and the DN50 high-pressure hose (8) is connected to a drainage groove (9).

4. The emergency repair device for coal pipeline according to claim 3, It is characterized in that The DN50 high-pressure hose (8) is also provided with a DN50 ball valve (7).

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