Overlying strata separation water vapor drainage device

Abstract

The utility model provides an overlying strata separation layer water vapor drainage device, which comprises a drainage head and a plurality of pipelines, each pipeline comprises an outer pipe and an inner pipe, a gap is arranged between the inner pipe and the outer pipe, two adjacent outer pipes are fixedly connected, a rotating shaft is rotatably matched in the drainage head, a plurality of fan blades are arranged at the end part of the rotating shaft, a plurality of scraping rods are arranged on the peripheral side of the rotating shaft, and the scraping rods are connected with the inner pipe and the outer pipe. A plurality of through holes are formed in the peripheral side of the drainage head, and the drainage head is fixedly connected with the outer pipe located at the end. According to the utility model, the gap is formed between the inner pipe and the outer pipe, so that the pipeline can be buffered, the pipeline is prevented from being extruded by a rock stratum to cause separation, the drainage effect is ensured, the pipeline can be assembled and disassembled, the interior of the pipeline is convenient to clean, and the pipeline is convenient to store; the fan blades and the scraping rod are mounted on the rotating shaft, so that the interior of the drainage head can be scraped, and the drainage head is prevented from being blocked.

Description

Technical Field

[0001] The utility model relates to the technical field of water and gas drainage devices, in particular to a water and gas drainage device for overburden separation layers. Background Technique

[0002] After the coal seam in the mine is mined, the overlying strata will undergo uneven damage and deformation due to differences in their thickness, lithology, and strength. Horizontal fissures will appear between the upper and lower strata with different hardnesses, that is, the so-called separation layer. When the overlying strata of the separation layer are water-rich strata and the underlying strata are soft strata, water will accumulate in the separation layer space within a certain period of time. With the continuous advancement of the working face and the accumulation of time, the water volume and water pressure in the closed separation layer space continue to accumulate. When the working face advances a certain distance, the overlying strata break and become unstable, and the fissure zone conducts the separation layer space, resulting in the sudden leakage of the overlying separation layer water body into the working face operation space. Most of the existing water and gas drainage devices for overlying separation layers are drained through water pumps and pipelines. However, as the underground mining working face advances, the overlying strata activities intensify, resulting in displacement of the strata, which causes extrusion of the pipelines, leading to the pipelines being cut off and affecting the water and gas drainage effect.

[0003] Therefore, the utility model provides a water and gas drainage device for overlying separation layers. Content of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a water and gas drainage device for overlying separation layers to solve the problems raised in the above background technology. The utility model can prevent the pipeline from being cut off due to the extrusion of the strata, ensuring the drainage effect; it is convenient to clean the inside of the pipeline and convenient to store the pipeline; it can also scrape the inside of the drainage head to prevent the drainage head from being blocked.

[0005] In order to achieve the above purpose, the utility model is realized through the following technical solutions: A water and gas drainage device for overlying separation layers includes a drainage head and a plurality of pipelines. The pipeline includes an outer pipe and an inner pipe. There is a gap between the inner pipe and the outer pipe. Two adjacent outer pipes are fixedly connected. A rotating shaft is rotatably fitted in the drainage head. A plurality of fan blades are installed at the end of the rotating shaft. A plurality of scraping rods are installed on the circumferential side of the rotating shaft. A plurality of through holes are opened on the circumferential side of the drainage head. The drainage head is fixedly connected to the outer pipe at the end.

[0006] Furthermore, flange plates are fixed at both ends of the outer pipe and the end of the drainage head. Two adjacent flange plates are fixedly connected by bolts.

[0007] Furthermore, the inner pipe is located inside the outer pipe and is fixedly connected to the outer pipe. The gap is communicated with the inner pipe.

[0008] Furthermore, both the outer pipe and the inner pipe are flexible pipes.

[0009] Further, a rotating groove is formed in the gas extraction head, and a rotating block is fixed at one end of the rotating shaft, and the rotating block corresponds to the rotating groove.

[0010] Further, the rotating shaft is fixedly connected to the fan blade, and the gas extraction head is communicated with the inner pipe.

[0011] Further, a connecting rod is installed between the rotating shaft and the scraping rod, and the connecting rod is fixedly connected to the rotating shaft and the scraping rod.

[0012] Further, the scraping rod is in contact with the inner wall of the gas extraction head.

[0013] The beneficial effects of the present utility model: A water and gas extraction device for overlying strata separation of the present utility model includes an inner pipe; an outer pipe; a gap; a pipeline; a gas extraction head; a rotating shaft; a fan blade; a scraping rod.

[0014] A gap is provided between the inner pipe and the outer pipe, which can buffer the pipeline, prevent the pipeline from being cut off due to the extrusion of the rock formation, ensure the extraction effect, and can assemble and disassemble the pipeline, facilitate the cleaning of the inside of the pipeline, and facilitate the storage of the pipeline. A rotating shaft is installed in the gas extraction head, and a fan blade and a scraping rod are installed on the rotating shaft, which can scrape the inside of the gas extraction head to prevent the gas extraction head from being blocked. Description of the Drawings

[0015] Figure 1 It is an overall assembled three-dimensional structure schematic diagram of a water and gas extraction device for overlying strata separation of the present utility model;

[0016] Figure 2 It is an overall assembled sectional structure schematic diagram of a water and gas extraction device for overlying strata separation of the present utility model;

[0017] Figure 3 It is an assembled sectional structure schematic diagram of the gas extraction head in a water and gas extraction device for overlying strata separation of the present utility model;

[0018] Figure 4 It is an assembled sectional structure schematic diagram of the pipeline in a water and gas extraction device for overlying strata separation of the present utility model;

[0019] In the figure: 1. Pipeline; 2. Outer pipe; 3. Inner pipe; 4. Flange; 5. Gas extraction head; 6. Through hole; 7. Rotating groove; 8. Rotating block; 9. Rotating shaft; 10. Fan blade; 11. Connecting rod; 12. Scraping rod; 13. Gap. Specific Embodiments

[0020] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] Please refer to Figures 1 to 4, the present utility model provides a technical solution: a device for extracting water and gas from overlying strata separation, comprising a pumping head 5 and a plurality of pipes 1. The pipe 1 includes an outer pipe 2 and an inner pipe 3. There is a gap 13 between the inner pipe 3 and the outer pipe 2. Two adjacent outer pipes 2 are fixedly connected. A rotating shaft 9 is rotatably fitted in the pumping head 5. A plurality of fan blades 10 are installed at the end of the rotating shaft 9. A plurality of scraping rods 12 are installed on the circumferential side of the rotating shaft 9. A plurality of through holes 6 are formed on the circumferential side of the pumping head 5. The pumping head 5 is fixedly connected to the outer pipe 2 at the end.

[0022] In this embodiment, flange plates 4 are fixedly provided at both ends of the outer pipe 2 and the end of the pumping head 5. Two adjacent flange plates 4 are fixedly connected by bolts. The inner pipe 3 is located inside the outer pipe 2 and is fixedly connected to the outer pipe 2. The gap 13 is communicated with the inner pipe 3. Both the outer pipe 2 and the inner pipe 3 are flexible pipes.

[0023] Specifically, when pumping water and gas, the water and gas are sent into the pipe 1 by a pump, so that the water and gas fill the gap 13, and a protection can be formed around the inner pipe 3, thereby buffering the extrusion of the rock stratum and preventing the pipe 1 from being cut off.

[0024] A rotating groove 7 is formed in the pumping head 5. A rotating block 8 is fixed at one end of the rotating shaft 9. The rotating block 8 corresponds to the rotating groove 7. The rotating shaft 9 is fixedly connected to the fan blades 10. The pumping head 5 is communicated with the inner pipe 3. A connecting rod 11 is installed between the rotating shaft 9 and the scraping rod 12. The connecting rod 11 is fixedly connected to the rotating shaft 9 and the scraping rod 12. The scraping rod 12 is in contact with the inner wall of the pumping head 5.

[0025] Specifically, when pumping water and gas, as the water and gas flow, the water and gas can drive the fan blades 10 to rotate, thereby driving the rotating shaft 9 to rotate, so that the rotating shaft 9 drives the scraping rod 12 to rotate through the connecting rod 11. Brushes can be fixed on the scraping rod 12 to clean the blocked through holes 6.

[0026] In addition, it should be understood that although this specification is described according to embodiments, not each embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A water vapor extraction device for overburden separation layer, comprising an extraction head (5) and a plurality of pipelines (1), characterized in that: The pipeline (1) comprises an outer tube (2) and an inner tube (3), a gap (13) is provided between the inner tube (3) and the outer tube (2), two adjacent outer tubes (2) are fixedly connected, a rotating shaft (9) is rotatably fitted inside the extraction head (5), a plurality of fan blades (10) are installed at the end of the rotating shaft (9), a plurality of scraper rods (12) are installed on the peripheral side of the rotating shaft (9), a plurality of through holes (6) are opened on the peripheral side of the extraction head (5), and the extraction head (5) is fixedly connected to the outer tube (2) located at the end.

2. The device for extracting water vapor from overburden strata according to claim 1, characterized in that: Both ends of the outer tube (2) and the end of the extraction head (5) are fixed with flanges (4), and two adjacent flanges (4) are fixedly connected by bolts.

3. The device for extracting water vapor from overburden separation layer according to claim 1, characterized in that: The inner tube (3) is located inside the outer tube (2), the inner tube (3) is fixedly connected to the outer tube (2), and the gap (13) is connected to the inner tube (3).

4. The device for extracting water vapor from overburden strata according to claim 1, characterized in that: The outer tube (2) and the inner tube (3) are both soft tubes.

5. The device for extracting water vapor from overburden strata according to claim 1, characterized in that: A rotating groove (7) is provided in the extraction and discharge head (5), and a rotating block (8) is fixed to one end of the rotating shaft (9), and the rotating block (8) corresponds to the rotating groove (7).

6. The device for extracting water vapor from overburden separation layer according to claim 1, characterized in that: The rotating shaft (9) is fixedly connected to the fan blade (10), and the extraction head (5) is communicated with the inner tube (3).

7. The device for extracting water vapor from overburden separation layer according to claim 1, characterized in that: A connecting rod (11) is arranged between the rotating shaft (9) and the scraping rod (12), and the connecting rod (11) is fixedly connected to the rotating shaft (9) and the scraping rod (12).

8. The device for extracting water vapor from overburden separation layer according to claim 1, characterized in that: The scraper rod (12) is in contact with the inner wall of the extraction head (5).

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