Deslagging type tail section of gas drainage pipeline
By introducing end-point gangue-blocking mesh and fine gangue-blocking mesh into the terminal section of the gas drainage pipeline, and equipping it with a slag storage bin, the problem of coal gangue blockage was solved, achieving high efficiency and safety in gas drainage, and ensuring the smooth flow of the pipeline and the drainage effect.
Patent Information
- Application Number
- CN202520387356.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-06
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2035-03-06
AI Technical Summary
In existing technologies, coal gangue can easily clog gas drainage pipelines, affecting the gas drainage effect. Especially during the advancement of underground working faces in coal mines, gangue can damage the gangue-blocking net and accumulate in the pipeline, resulting in a smaller cross-section of the drainage system and, in severe cases, blockage of the pipeline.
Design a slag-removable gas extraction pipeline terminal section, including an end-mounted gangue-blocking mesh and a fine gangue-blocking mesh, combined with a slag storage bin. The gangue is filtered multiple times and accumulated in the slag storage bin, and is periodically removed through the slag outlet to ensure unobstructed pipeline flow.
It significantly reduces the risk of gas drainage pipeline blockage by gangue, ensures the efficiency and safety of gas drainage, is easy to operate, and improves the effect of gas drainage.
Smart Images
Figure CN223634749U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of coal mine equipment, especially to a slag-removable gas drainage pipeline tail section. BACKGROUND
[0002] In the process of gas drainage in the coal mine, a several-meter-long gas drainage pipeline tail section is often placed in the old goaf at the outlet of the working face to drain the gas in the old goaf. During the mining process, the gas pipeline needs to be connected every shift as the working face advances, so that the gas drainage pipeline tail section is always located within 1m of the old goaf.
[0003] During use, the gangue falling from the old goaf can damage the gangue-blocking net at the end of the tail section, so that the gangue-blocking net cannot play the role of gangue blocking. The coal gangue falling from the old goaf enters the gas drainage pipeline with the air flow and continuously deposits, which reduces the cross section of the entire drainage system pipeline and greatly affects the gas drainage effect. Especially in severe cases, the gangue can be blocked in the tail section of the drainage pipeline during the process of the old goaf falling plate. SUMMARY
[0004] To solve the above problems in the prior art, the utility model provides a slag-removable gas drainage pipeline tail section.
[0005] The utility model provides a slag-removable gas drainage pipeline tail section adopts the following technical scheme:
[0006] A slag-removable gas drainage pipeline tail section, which comprises a pipeline section, an end gangue-blocking net and a fine gangue-blocking net are installed in the pipeline section, a gangue storage bin is arranged at the bottom of the pipeline section, the gangue storage bin is located between the end gangue-blocking net and the fine gangue-blocking net and directly below the fine gangue-blocking net, and a gangue outlet is arranged at the bottom of the gangue storage bin.
[0007] Through the above technical scheme, the end gangue-blocking net is located inside the pipeline section to avoid being damaged, the gangue passes through the end gangue-blocking net and the fine gangue-blocking net twice, which significantly reduces the risk of gangue blocking the gas drainage pipeline, the gangue accumulated in the gangue storage bin can be regularly discharged through the gangue outlet, the gas drainage pipeline tail section part is always left in the old goaf when the gas drainage pipeline is connected, and the drainage effect is guaranteed; the gas drainage pipeline tail section is simple and convenient to operate, has a high safety factor, and significantly improves the efficiency of gas drainage.
[0008] Optionally, the pipeline section comprises a main pipeline section and a flower pipeline section, the fine gangue-blocking net and the gangue storage bin are located on the main pipeline section, the end gangue-blocking net is located in the flower pipeline section, and a plurality of through holes are formed in the side wall of the flower pipeline section.
[0009] Through the above technical scheme, a plurality of through holes are formed in the side wall of the flower pipeline section to increase the way of gas suction, which is conducive to the collection of the gas in the corner and the old goaf.
[0010] Optionally, the pipeline section is fixedly connected with a flange plate at one end away from the end head gangue blocking net.
[0011] By adopting the technical scheme, the pipeline section is convenient to splice, and when the gas pipeline is spliced, the gangue accumulation condition can be observed through the one end provided with the flange plate, and the gangue can be discharged through the gangue discharging port regularly. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 is the front view of the gas extraction pipeline end section with slag removal function according to an embodiment of the present application.
[0013] Figure 2 is the side view of the gas extraction pipeline end section with slag removal function according to an embodiment of the present application.
[0014] The reference signs are explained as follows: 1, pipeline section; 10, pipe body section; 11, flower pipe section; 2, end head gangue blocking net; 3, fine and dense gangue blocking net; 4, slag storage bin; 40, gangue discharging port; 5, flange plate. DETAILED DESCRIPTION
[0015] The following will be explained in detail with reference to the accompanying drawings. Figure 1 - the accompanying drawings Figure 2 The present application will be further explained in detail.
[0016] The embodiment of the present application discloses a gas extraction pipeline end section with slag removal function. Figure 1 and Figure 2 The gas extraction pipeline end section with slag removal function comprises a pipeline section 1, the pipeline section 1 comprises a pipe body section 10 and a flower pipe section 11, and a plurality of through holes are formed in the side wall of the flower pipe section 11, so as to increase the gas suction path and be beneficial to the collection of corner gas and old pond gas.
[0017] Referring to Figure 1 and Figure 2 , an end head gangue blocking net 2 is installed in the flower pipe section 11, and the end head gangue blocking net 2 is built-in, which can effectively prevent the gangue falling from the roof from damaging the end head gangue blocking net 2, and even if individual gangue blocks block the end head of the extraction pipeline end section, the gas can also be absorbed through the flower pipe section 11.
[0018] Referring to Figure 1 and Figure 2 , a fine and dense gangue blocking net 3 is installed in the pipe body section 10, a slag storage bin 4 is arranged at the bottom of the pipe body section 10 on the side close to the end head gangue blocking net 2, and a gangue discharging port 40 is arranged at the bottom of the slag storage bin 4. The fine and dense gangue blocking net 3 retains the fine gangue into the slag storage bin 4, and the gangue remaining in the slag storage bin 4 is discharged through the gangue discharging port 40.
[0019] Referring to Figure 1 and Figure 2The flange plate 5 is fixed to one end of the pipe body section 10 away from the flower pipe section 11, and when the gas pipe is connected, the gangue accumulation condition can be observed through the one end provided with the flange plate 5, and the gangue can be discharged through the gangue outlet 40 regularly.
[0020] The implementation principle of the gangue-removable gas extraction pipe tail section in the embodiment of the utility model is that the end head gangue blocking net 2 is located in the flower pipe section 11 to avoid being damaged, the gas suction effect is increased through the flower pipe section 11, the gangue is filtered twice through the end head gangue blocking net 2 and the fine and dense gangue blocking net 3, the risk that the gangue blocks the gas extraction pipe is significantly reduced, the gangue accumulated in the gangue storage bin 4 can be discharged regularly through the gangue outlet 40. When the gas extraction pipe is connected, the flower pipe section 11 of the gas extraction pipe tail section is always left in the old pond, and the extraction effect is guaranteed. The gas extraction pipe tail section in the embodiment of the utility model is simple and convenient to operate, and the safety factor is high, and the efficiency of gas extraction is significantly improved.
[0021] The above are preferred embodiments of the utility model, and do not limit the protection scope of the utility model, so that: equivalent changes made according to the structure, shape and principle of the utility model should be covered in the protection scope of the utility model.
Claims
1. A dross-removable gas extraction pipe tailpiece, characterized by: The pipeline section (1) is internally provided with an end head gangue blocking net (2) and a fine and dense gangue blocking net (3), and is provided at the bottom with a gangue storage bin (4) which is located between the end head gangue blocking net (2) and the fine and dense gangue blocking net (3) and directly below the fine and dense gangue blocking net (3), and the bottom of the gangue storage bin (4) is provided with a gangue outlet (40).
2. The dross removable gas extraction line tip according to claim 1, characterized in that: The pipeline section (1) comprises a pipe body section (10) and a flower pipe section (11), the fine and dense gangue blocking net (3) and the gangue storage bin (4) are located on the pipe body section (10), and the end head gangue blocking net (2) is located in the flower pipe section (11), and a plurality of through holes are formed in the side wall of the flower pipe section (11).
3. The de-sludging gas extraction pipeline end piece according to claim 1 or 2, characterized in that: The pipeline section (1) is fixedly connected with a flange (5) at one end away from the end head gangue blocking net (2).