Gas drainage device for gas control

Abstract

This utility model relates to the field of gas drainage technology and discloses a gas drainage device for gas control, including a filter box: a cover is installed on the top of the filter box, an air inlet pipe is provided on one side of the filter box, an exhaust pipe is provided on the other side of the filter box, and U-shaped guide rails are fixed on both sides inside the filter box, with a mounting frame slidably connected inside the U-shaped guide rails. This gas drainage device for gas control can intercept and filter impurities and dust through the filter plate. The replaceable design of the filter plate ensures good working performance of the filter plate even after long-term use. The cleaning mechanism saves costs by requiring regular cleaning of the filter plate before it reaches its usage limit, ensuring the filtration effect before replacement and preventing the filter plate from becoming a disposable item, thus greatly saving costs.

Description

Technical Field

[0001] This utility model relates to the field of gas drainage technology, and in particular to a gas drainage device for gas control. Background Technology

[0002] Coal mine gas refers to natural gas, a large amount of gas produced by plants during the coal formation process, also known as coalbed methane. Humus-type organic matter, when decomposed by bacteria, can generate gas; subsequently, as the burial depth of sediments increases, over long geological periods, the coal seam undergoes high temperature and pressure, entering the carbonization and metamorphic stage of coal. The volatile matter in the coal decreases, and the fixed carbon increases, generating a large amount of gas, which is stored in the pores and fissures of the coal seam or rock strata. Gas has a very wide range of applications in human daily life.

[0003] Regarding the above and existing related technologies, the inventors believe that the following defects often exist: because there is a lot of dust in the mine, the dust will be sucked in along with the gas during extraction. The long-term accumulation of dust will cause blockage of the extraction equipment, resulting in poor extraction effect and potentially causing safety accidents. Utility Model Content

[0004] The technical problem to be solved by this utility model is that the existing technology lacks the function of intercepting and filtering inhaled dust, which easily causes equipment blockage or damage. To this end, we propose a gas extraction device for gas control.

[0005] To achieve the above objectives, this application adopts the following technical solution: a gas extraction device for gas control, comprising a filter box: a box cover is installed on the top of the filter box, an air inlet pipe is provided on one side of the filter box, an exhaust pipe is provided on the other side of the filter box, U-shaped guide rails are fixed on both sides inside the filter box, an installation frame is slidably connected inside the U-shaped guide rails, and a filter plate is installed inside the installation frame.

[0006] The filter box is equipped with a cleaning mechanism, which includes an installation strip on the side of the filter plate near the air inlet pipe. A scraper for use with the filter plate is installed on the side of the installation strip near the filter plate. Guide rods are slidably connected to both ends of the installation strip. Movable blocks are fixed to the top and bottom ends of the guide rods. Two installation slots are opened on both sides of the inside of the filter box, which are slidably connected to the movable blocks. A sliding rod is slidably connected inside the movable block. Both ends of the sliding rod are fixed to the inner wall of the installation slot. A control plate is fixed to the top of the installation strip. A through slot is opened on the top of the box cover, which is slidably connected to the control plate. A gripping slot is opened on the top of the control plate. A first spring is sleeved on the surface of the sliding rod. One end of the first spring is fixed to the inner wall of the installation slot, and the other end of the first spring is fixed to the movable block.

[0007] The top of the box cover is equipped with a limiting component, which includes a second limiting block slidably connected to the top of the box cover. The top of the second limiting block has sliding grooves on both sides. A limiting post is slidably connected inside the sliding groove. The bottom of the limiting post is fixed to the top of the box cover. A limiting round block is fixed to the top of the limiting post. The surface of the control plate has a limiting groove slidably connected to the second limiting block.

[0008] Preferably, limit rods are fixed on both sides of the box cover, and rotating shafts are fixed on both sides of the filter box. A first limit block is rotatably connected to the surface of the rotating shaft. An elliptical through hole is opened on one side of the first limit block, and a slot for cooperating with the limit rod is opened at the top of the first limit block near the box cover.

[0009] Preferably, a housing is provided on one side of the first limiting block, the side of the housing near the filter box is fixed to the filter box, a plug rod is slidably connected to the end of the housing near the first limiting block, a slot for cooperating with the plug rod is opened on the side of the first limiting block near the housing, a lever is fixed to the surface of the plug rod, a stroke groove for slidably connecting with the lever is opened on one side of the housing, a second spring is fixed to the end of the plug rod away from the first limiting block, and the other end of the second spring is fixed to the inside of the housing.

[0010] Preferably, a handle is fixed to the top of the filter plate.

[0011] Preferably, the bottom of the box cover is fixed with a sealing block that is slidably connected to the U-shaped guide rail, and the bottom of the sealing block is provided with a groove for use with the handle.

[0012] Preferably, the top of the filter box is provided with a sealing groove, and the bottom of the box cover is provided with a sealing strip that works in conjunction with the sealing groove.

[0013] Preferably, the bottom end of the filter plate near the exhaust pipe has a chamfer.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] In this invention, the filter plate can intercept and filter impurities and dust. The replaceable design of the filter plate ensures good working performance of the filter plate even after long-term use. The cleaning mechanism saves costs by cleaning the filter plate regularly before it reaches its limit of use, ensuring the filtration effect before replacement and preventing the filter plate from becoming a disposable item, thus greatly saving costs. Attached Figure Description

[0016] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts:

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a bottom view of the structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the disassembled structure of the filter box and the cover of this utility model;

[0020] Figure 4 This is a schematic diagram of the filter plate structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the disassembled structure of the cleaning mechanism of this utility model;

[0022] Figure 6 This is a schematic diagram of the disassembled structure of the first limiting block and the rotating shaft of this utility model.

[0023] Legend: 1. Filter box; 2. Box cover; 3. Inlet pipe; 4. Exhaust pipe; 5. U-shaped guide rail; 6. Mounting frame; 7. Filter plate; 8. Mounting groove; 9. Movable block; 10. Slide rod; 11. Guide rod; 12. Mounting strip; 13. Scraper; 14. Limiting rod; 15. Rotating shaft; 16. First limiting block; 17. Elliptical through hole; 18. Slot; 19. Control board; 20. Through groove; 21. Second limiting block; 22. Sliding groove; 23. Limiting post; 24. Limiting round block; 25. First spring; 26. Housing; 27. Insert rod; 28. Toggle rod; 29. ​​Stroke groove; 30. Slot; 31. Second spring; 32. Limiting groove; 33. Handle; 34. Sealing block; 35. Groove; 36. Sealing groove; 37. Sealing strip; 38. Chamfer; 39. Grip groove. Detailed Implementation

[0024] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0025] Reference Figures 1-6As shown, this utility model provides a technical solution: a gas extraction device for gas control, including a filter box 1: a box cover 2 is installed on the top of the filter box 1, an air inlet pipe 3 is provided on one side of the filter box 1, an exhaust pipe 4 is provided on the other side of the filter box 1, and U-shaped guide rails 5 are fixed on both sides inside the filter box 1. An installation frame 6 is slidably connected inside the U-shaped guide rails 5, and a filter plate 7 is installed inside the installation frame 6.

[0026] The filter box 1 is equipped with a cleaning mechanism, which includes an installation strip 12 located on the side of the filter plate 7 near the air inlet pipe 3. A scraper 13 that works with the filter plate 7 is installed on the side of the installation strip 12 near the filter plate 7. Guide rods 11 are slidably connected to both ends of the installation strip 12. Movable blocks 9 are fixed to the top and bottom ends of the guide rods 11. Two installation grooves 8 that are slidably connected to the movable blocks 9 are opened on both sides of the inside of the filter box 1. A sliding rod 10 is slidably connected inside the movable block 9. Both ends of the sliding rod 10 are fixed to the inner wall of the installation groove 8. A control plate 19 is fixed to the top of the installation strip 12. A through groove 20 that is slidably connected to the control plate 19 is opened on the top of the box cover 2. A holding groove 39 is opened at the top of the control plate 19. A first spring 25 is sleeved on the surface of the sliding rod 10. One end of the first spring 25 is fixed to the inner wall of the installation groove 8, and the other end of the first spring 25 is fixed to the movable block 9.

[0027] A limiting assembly is installed on the top of the cover 2. The limiting assembly includes a second limiting block 21 slidably connected to the top of the cover 2. Sliding grooves 22 are provided on both sides of the top of the second limiting block 21. A limiting post 23 is slidably connected inside the sliding groove 22. The bottom of the limiting post 23 is fixed to the top of the cover 2, and a limiting round block 24 is fixed to the top of the limiting post 23. A limiting groove 32 is provided on the surface of the control plate 19, which is slidably connected to the second limiting block 21. When gas enters through the intake pipe 3 and is then discharged through the exhaust pipe 4, dust and impurities in the gas are filtered by the filter plate 7. This filtration prevents dust from entering subsequent equipment and thus avoids equipment damage. During equipment operation... The installation strip 12 drives the scraper 13 to clean the surface of the filter plate 7 by periodically controlling the control plate 19, thereby preventing the filter plate 7 from becoming clogged and ensuring good filtration effect. After cleaning, the installation strip 12 is positioned at the highest point of the filter plate 7 by controlling the control plate 19. Then, the second limiting block 21 is inserted into the limiting groove 32 to fix the position of the installation strip 12 and reduce obstruction of the filter plate 7. When the second limiting block 21 moves, the sliding connection between the limiting post 23 and the sliding groove 22 guides the movement of the second limiting block 21 and prevents it from deviating. The limiting round block 24 limits the movement of the second limiting block 21. The function of this is to prevent the second limiting block 21 from detaching from the top of the cover 2. After long-term use, the filter plate 7 needs to be replaced. This is done by removing the cover 2 and then taking the mounting frame 6 out from inside the U-shaped guide rail 5. The mounting frame 6 and the filter plate 7 are then replaced and cleaned as a whole to ensure the overall filtration effect. When removing the mounting frame 6, the guide rod 11 is driven by the mounting bar 12 to move the movable block 9 inside the mounting groove 8, so that the scraper 13 is away from the filter plate 7, preventing the mounting frame 6 from colliding with the scraper 13 when the filter plate 7 is removed. After the new filter plate 7 is installed, the elastic force generated by the first spring 25 moves the movable block 9 into place. The pressure limiter ensures that the scraper 13 fits tightly against the filter plate 7, guaranteeing the cleaning effect. The sliding rod 10 effectively prevents the movable block 9 from detaching from the mounting groove 8 and also serves as a guide. This technical solution uses the filter plate 7 to intercept and filter impurities and dust. The replaceable design of the filter plate 7 ensures its good working effect even after long-term use. The cleaning mechanism saves costs by requiring the filter plate 7 to be cleaned regularly before it reaches its limit, ensuring the filtration effect before replacement and preventing the filter plate 7 from becoming a disposable item, thus greatly saving costs.

[0028] Reference Figure 1 and Figure 6As shown in this embodiment: Limiting rods 14 are fixed to both sides of the cover 2; rotating shafts 15 are fixed to both sides of the filter box 1; a first limiting block 16 is rotatably connected to the surface of the rotating shaft 15; an elliptical through hole 17 is provided on one side of the first limiting block 16; a slot 18 for cooperating with the limiting rods 14 is provided at the top of the first limiting block 16 near the cover 2; a housing 26 is provided on one side of the first limiting block 16; the housing 26 is fixed to the filter box 1 on the side near the filter box 1; the housing 26... A rod 27 is slidably connected to one end of the first limiting block 16. A slot 30 for the rod 27 is provided on the side of the first limiting block 16 near the housing 26. A lever 28 is fixed to the surface of the rod 27. A travel groove 29 for sliding connection with the lever 28 is provided on one side of the housing 26. A second spring 31 is fixed to the end of the rod 27 away from the first limiting block 16. The other end of the second spring 31 is fixed to the inside of the housing 26. After the filter plate 7 is replaced, the cover 2 is installed on the top of the filter box 1. The first limiting block 16 is rotated on the surface of the rotating shaft 15, so that the limiting rod 14 is at the bottom of the slot 18. Then, the first limiting block 16 is moved downward through the sliding connection between the elliptical through hole 17 and the rotating shaft 15, so that the slot 18 and the limiting rod 14 are engaged. Then, the insert rod 27 is inserted into the slot 30 by the lever 28, so that the position of the first limiting block 16 is fixed, thereby completing the fixing of the box cover 2. After fixing, the insert rod 27 is continuously limited by the second spring 31 to prevent the insert rod 27 from being in the slot. When the cover 2 needs to be removed to replace the filter plate 7, the insert rod 27 is disengaged from the slot 30 by the lever 28, releasing the control of the first limiting block 16. By controlling the first limiting block 16, the first limiting block 16 moves up and down on the surface of the rotating shaft 15 through the elliptical through hole 17, so that the slot 18 is separated from the limiting rod 14. Then the first limiting block 16 is rotated so that the first limiting block 16 moves away on the longitudinal movement path of the limiting rod 14, thereby releasing the limitation on the cover 2.

[0029] Reference Figure 4 As shown in this embodiment, a handle 33 is fixed to the top of the filter plate 7, which facilitates the worker to pick up and remove the installation frame 6.

[0030] Reference Figure 2As shown in this embodiment: a sealing block 34 is fixed at the bottom of the cover 2 and slidably connected to the U-shaped guide rail 5. The bottom of the sealing block 34 is provided with a groove 35 for use with the handle 33. By setting the sealing block 34, when the cover 2 is installed on the top of the filter box 1, the sealing block 34 is located in the gap between the top of the mounting frame 6 and the cover 2. At the same time, both ends of the sealing block 34 are in contact with the inside of the U-shaped guide rail 5, thereby playing a sealing role. By opening the groove 35, the handle 33 can enter the inside of the sealing block 34, ensuring the sealing effect while avoiding movement interference.

[0031] Reference Figure 2 and Figure 3 As shown in this embodiment: a sealing groove 36 is provided on the top of the filter box 1, and a sealing strip 37 that works in conjunction with the sealing groove 36 is installed on the bottom of the cover 2. The sealing performance between the filter box 1 and the cover 2 is improved by the cooperation of the sealing groove 36 and the sealing strip 37, thus preventing gas leakage.

[0032] Reference Figure 4 As shown in this embodiment: the bottom end of the filter plate 7 near the exhaust pipe 4 is provided with a chamfer 38. When the scraper 13 moves downward to clean the filter plate 7, the impurities will fall down with the cleaning. The chamfer 38 is used to guide the impurities and prevent them from accumulating in front of the filter plate 7.

[0033] Working Principle: When gas enters through the intake pipe 3 and exits through the exhaust pipe 4, it passes through the filter plate 7 to filter dust and impurities in the gas. This filtration prevents dust from entering subsequent equipment and causing damage. During operation, the control board 19 periodically controls the mounting strip 12 to drive the scraper 13 to clean the surface of the filter plate 7, preventing clogging and ensuring good filtration. After cleaning, the control board 19 positions the mounting strip 12 at the highest point of the filter plate 7. Then, the second limiting block 21 engages with the limiting groove 32 to fix the position of the mounting strip 12, reducing obstruction of the filter plate 7. As the second limiting block 21 moves, it is connected to the limiting post 23... The sliding connection of the sliding groove 22 guides the movement of the second limiting block 21, preventing it from shifting. The limiting block 24 limits the second limiting block 21, preventing it from detaching from the top of the cover 2. When the filter plate 7 needs to be replaced after long-term use, the cover 2 needs to be removed to replace the filter plate 7. The lever 28 drives the insertion rod 27 to disengage from the slot 30, releasing the control of the first limiting block 16. By controlling the first limiting block 16, it moves up and down on the surface of the rotating shaft 15 through the elliptical through hole 17, separating the slot 18 from the limiting rod 14. Then, the first limiting block 16 is rotated to move the first limiting block 16 back to its original position. The limiting block 16 moves away along the longitudinal movement path of the limiting rod 14, thereby releasing the limitation on the box cover 2. By removing the box cover 2, the mounting frame 6 is then taken out from inside the U-shaped guide rail 5. The mounting frame 6 and the filter plate 7 are replaced and cleaned as a whole to ensure the overall filtration effect. When removing the mounting frame 6, the guide rod 11 is driven by the control mounting bar 12 to move the movable block 9 inside the mounting groove 8, so that the scraper 13 is away from the filter plate 7, avoiding collision between the mounting frame 6 and the scraper 13 when the filter plate 7 is removed. After the new filter plate 7 is installed, the elastic force generated by the first spring 25 applies pressure to limit the movable block 9, so that the scraper 13 can fit tightly with the filter plate 7 to ensure the cleaning effect. The rod 10 effectively prevents the movable block 9 from detaching from the mounting groove 8 and also serves as a guide. After the filter plate 7 is replaced, the cover 2 is installed on the top of the filter box 1. By controlling the first limiting block 16 to rotate on the surface of the rotating shaft 15, the limiting rod 14 is positioned at the bottom of the slot 18. The first limiting block 16 is then moved downward through the sliding connection between the elliptical through hole 17 and the rotating shaft 15, so that the slot 18 engages with the limiting rod 14. Then, the insert rod 27 is inserted into the slot 30 by the lever 28, fixing the position of the first limiting block 16 and thus fixing the cover 2. After fixing, the second spring 31 continuously limits the insert rod 27 to prevent it from detaching from the slot 30.

[0034] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A gas extraction device for gas control, characterized in that, Includes a filter box (1): the top of the filter box (1) is equipped with a box cover (2), an air inlet pipe (3) is provided on one side of the filter box (1), an exhaust pipe (4) is provided on the other side of the filter box (1), and U-shaped guide rails (5) are fixed on both sides inside the filter box (1). An installation frame (6) is slidably connected inside the U-shaped guide rails (5), and a filter plate (7) is installed inside the installation frame (6). The filter box (1) is equipped with a cleaning mechanism, which includes an installation strip (12) located on the side of the filter plate (7) near the air inlet pipe (3). A scraper (13) is installed on the side of the installation strip (12) near the filter plate (7) to cooperate with the filter plate (7). Guide rods (11) are slidably connected to both ends of the installation strip (12). Movable blocks (9) are fixed to the top and bottom ends of the guide rods (11). Two mounting slots (8) are opened on both sides of the filter box (1) to slidably connect with the movable blocks (9). 9) has a sliding rod (10) inside, both ends of which are fixed to the inner wall of the mounting groove (8). The top of the mounting strip (12) is fixed with a control plate (19). The top of the box cover (2) is provided with a through groove (20) that is slidably connected to the control plate (19). The top of the control plate (19) is provided with a gripping groove (39). The surface of the sliding rod (10) is fitted with a first spring (25). One end of the first spring (25) is fixed to the inner wall of the mounting groove (8), and the other end of the first spring (25) is fixed to the movable block (9). The top of the box cover (2) is equipped with a limiting component. The limiting component includes a second limiting block (21) slidably connected to the top of the box cover (2). Sliding grooves (22) are provided on both sides of the top of the second limiting block (21). A limiting post (23) is slidably connected inside the sliding groove (22). The bottom of the limiting post (23) is fixed to the top of the box cover (2). A limiting round block (24) is fixed to the top of the limiting post (23). A limiting groove (32) is provided on the surface of the control plate (19) and is slidably connected to the second limiting block (21).

2. The gas extraction device for gas control according to claim 1, characterized in that: Limiting rods (14) are fixed on both sides of the box cover (2), and rotating shafts (15) are fixed on both sides of the filter box (1). A first limiting block (16) is rotatably connected to the surface of the rotating shaft (15). An elliptical through hole (17) is opened on one side of the first limiting block (16). A slot (18) for cooperating with the limiting rods (14) is opened at the top of the first limiting block (16) near the box cover (2).

3. The gas extraction device for gas control according to claim 2, characterized in that: A housing (26) is provided on one side of the first limiting block (16). The housing (26) is fixed to the filter box (1) on the side near the filter box (1). A plug rod (27) is slidably connected to one end of the housing (26) near the first limiting block (16). A slot (30) for cooperating with the plug rod (27) is opened on the side of the first limiting block (16) near the housing (26). A lever (28) is fixed on the surface of the plug rod (27). A stroke groove (29) for sliding connection with the lever (28) is opened on one side of the housing (26). A second spring (31) is fixed to one end of the plug rod (27) away from the first limiting block (16). The other end of the second spring (31) is fixed to the inside of the housing (26).

4. The gas extraction device for gas control according to claim 1, characterized in that: A handle (33) is fixed to the top of the filter plate (7).

5. The gas extraction device for gas control according to claim 1, characterized in that: The bottom of the box cover (2) is fixed with a sealing block (34) that is slidably connected to the U-shaped guide rail (5). The bottom of the sealing block (34) is provided with a groove (35) that is used in conjunction with the handle (33).

6. The gas extraction device for gas control according to claim 1, characterized in that: The top of the filter box (1) is provided with a sealing groove (36), and the bottom of the box cover (2) is provided with a sealing strip (37) that works in conjunction with the sealing groove (36).

7. The gas extraction device for gas control according to claim 1, characterized in that: The filter plate (7) has a chamfer (38) at the bottom end near the exhaust pipe (4).

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