High-level separation layer water vapor drainage device

Abstract

The invention relates to the technical field of mine safety, and discloses a high-level separation layer water vapor drainage device which comprises a separation box, a filtering mechanism is arranged in the separation box, an electric push rod, a water jet screen and a cleaning frame are arranged in the filtering mechanism, the side wall of the electric push rod is fixedly installed on the separation box, and a telescopic rod is installed at the output end of the electric push rod. The side end of the telescopic rod is fixedly connected to the cleaning frame, the outer wall of the water jet screen is fixedly connected to the inner wall of the separation box, a plurality of screen grooves are formed in the water jet screen, sliding grooves are symmetrically formed in the top of the water jet screen, the two side walls of each sliding groove are correspondingly inserted into the cleaning frame, a plurality of sets of cleaning lines are vertically and fixedly connected to the inner wall of the cleaning frame, and each cleaning line is correspondingly inserted into the corresponding screen groove. The device overcomes the defects in the prior art, effectively restrains occurrence of mine mining overlying strata separation water disasters, guarantees safety production of a coal mine, meanwhile, discharged methane can be used on the mine, and the device is economical, environmentally friendly and higher in practicability.

Description

Technical Field

[0001] This invention relates to the field of mine safety technology, specifically to a high-level delamination water and gas extraction device. Background Technology

[0002] After the coal seam is mined, the overlying strata suffer uneven damage and deformation due to differences in thickness, lithology, and strength. Transverse fissures, known as delamination, appear between the upper and lower strata of different hardness. When the overlying strata are water-rich and the underlying strata are soft, water will accumulate in the delamination space over a certain period of time. As the working face advances and time accumulates, the water volume and pressure in the enclosed delamination space continue to build up. When the working face advances a certain distance, the overlying strata break and become unstable, and the fissure zone opens up the delamination space, causing the delamination water to suddenly leak down and feed into the working face, becoming one of the major hidden dangers affecting the safe production of the mine.

[0003] A search revealed that Chinese Patent Publication (Announcement) No. CN110469364B discloses a device and method for extracting water and gas from overburden separation. This method utilizes a long borehole to introduce a water-gas mixture from the overburden separation into a mixer. Carbon dioxide is then injected into the mixer to displace methane. The displaced methane is then further filtered to release pure methane, which has economic value. Simultaneously, the dissolved water solution is sent to a water testing container for testing. If the methane content in the solution reaches the standard discharge level, it is discharged; otherwise, it is returned to the mixer for repeated replacement and circulation until the standard discharge level is reached. This invention effectively curbs the occurrence of water-gas dynamic disasters caused by overburden separation in mines, ensuring safe coal mine production. Furthermore, the discharged methane can be used in the mine, making it both economical and environmentally friendly.

[0004] In practical applications, the high content of solid impurities in the delamination water makes it difficult to react directly with carbon dioxide to replace methane without filtration, resulting in incomplete water-gas separation and low efficiency. Summary of the Invention

[0005] This invention provides a high-level separation water vapor extraction device to solve the problems mentioned in the background art, such as poor effect of directly replacing methane with solid impurities in the separation water without filtration, resulting in incomplete water vapor separation and low efficiency.

[0006] This invention provides a high-level delamination water and air extraction device, including a separation box, a filtration mechanism inside the separation box, an electric push rod, a water jet screen, and a cleaning frame. The side wall of the electric push rod is fixedly installed on the separation box, and a telescopic rod is installed at the output end of the electric push rod. The side end of the telescopic rod is fixedly connected to the cleaning frame. The outer wall of the water jet screen is fixedly connected to the inner wall of the separation box. The water jet screen has multiple screen slots, and the top of the water jet screen has symmetrically opened sliding grooves. The two side walls of the sliding grooves are correspondingly inserted into the cleaning frame. The inner wall of the cleaning frame is vertically fixedly connected to multiple sets of cleaning lines, and each cleaning line is correspondingly inserted into a screen slot. The separation chamber is equipped with a displacement mechanism located directly below the water jet screen. An air inlet pipe is fixedly connected to one side of the separation chamber to supply air to the displacement mechanism. A detection chamber is fixedly connected to the other side of the separation chamber. A methane sensor is installed on the inner wall of the detection chamber. A water pump is installed on the top of the detection chamber. A water inlet pipe is fixedly connected to the bottom of the water pump, and the bottom end of the water inlet pipe extends into the detection chamber. An outlet pipe is fixedly connected to the side of the water pump facing the separation chamber, and the side end of the outlet pipe extends into the separation chamber, with the outlet pipe located below the water jet screen.

[0007] Preferably, rollers are fixedly connected to both sides of the cleaning frame, and guide rails are symmetrically fixedly connected to the inner wall of the separation box. Both the rollers and guide rails are located below the screen groove, and the rollers and guide rails are slidably connected.

[0008] Preferably, a connecting pipe is provided at the connection between the separation box and the detection box for communication, and a liquid outlet pipe is installed on one side of the detection box. Both the connecting pipe and the liquid outlet pipe are equipped with an electric control valve.

[0009] Preferably, the side wall of the separation box has a discharge port, which is located above the water jet screen. A waste residue box is fixedly connected to the side wall of the separation box, covering the outside of the discharge port and located above the air inlet pipe. The outer wall of the waste residue box should be equipped with a movable door.

[0010] Preferably, the replacement mechanism includes a rotating rod, a spring tube, and a lever. The two ends of the rotating rod are connected to the inner wall of the separation box through bearings, and the rotating rod is hollow. Multiple sets of exhaust pipes are symmetrically fixedly connected to the rotating rod, and multiple sets of air outlets are opened on the exhaust pipes. One end of the spring tube is fixedly connected to the air inlet pipe, and the other end of the spring tube is fixedly connected to the rotating rod.

[0011] Preferably, a gear is fixedly connected to the middle of the rotating rod, the top of the lever is fixedly connected to the bottom of the cleaning frame, and a toothed plate is fixedly connected to the bottom of the lever, with the bottom of the toothed plate meshing with the outer wall of the gear.

[0012] Preferably, a support frame is fixedly connected to the top of the detection box, the top of the support frame is set as an open structure, and a drying mechanism is provided inside the support frame for drying the released methane gas.

[0013] Preferably, the drying mechanism includes a drying box fixedly connected to a support frame, with both sides of the drying box fixedly connected to the support frame. An air outlet pipe is fixedly connected to the side of the drying box facing away from the separation box, and the side end of the air outlet pipe extends outward through the support frame. Silica gel and a pressure plate are placed inside the drying box. The pressure plate is located on the side of the silica gel facing the separation box, and a pressure rod is fixedly connected to the outer wall of the pressure plate.

[0014] Preferably, the top of the drying chamber is equipped with a sealing cover, the drying chamber has a rectangular groove on the side facing the separation chamber, the pressure plate has multiple vent holes, and the side end of the pressure rod extends into the separation chamber through the rectangular groove.

[0015] Preferably, an inlet pipe is fixedly connected to the top of the separation tank, and a control panel is installed on the outer wall of the separation tank.

[0016] Compared with the prior art, the beneficial effects of the present invention are: This invention employs a long borehole to guide the water-air mixture within the overburden abscission layer into a separation tank. Waste residue is filtered out using a water jet screen, and carbon dioxide is injected into the separation tank to displace methane. Simultaneously, the displaced aqueous solution is sent to a testing tank for analysis. If the methane content in the aqueous solution reaches the standard discharge level, it is discharged; otherwise, it is returned to the separation tank for repeated displacement and cycling until the standard discharge level is reached. This overcomes the shortcomings of existing technologies, effectively curbing the occurrence of overburden abscission water disasters in mines and ensuring safe coal mine production. Furthermore, the discharged methane can be used in the mine, making it economical, environmentally friendly, and highly practical.

[0017] This invention employs a combination of a rotating rod, an exhaust pipe, gears, and a lever. The lever moves to move the gear plate, causing the gear to rotate and change position. This results in more uniform carbon dioxide discharge and more thorough mixing with the delamination water, overcoming the shortcomings of existing technologies and improving the efficiency of methane replacement work, saving working time and increasing economic benefits.

[0018] Carbon dioxide is introduced through an external inlet pipe and delivered to the rotating rod via a spring tube. It is then discharged through the outlet and reacts with the absorptive water in the separation chamber to displace methane. A lever is installed that reciprocates with the cleaning frame. During the movement of the lever, the toothed plate moves. When the toothed plate passes over the rotating rod, it meshes with the gear, thereby causing the rotating rod to rotate. The rotation of the rotating rod flips the position of the exhaust pipe, preventing the exhaust pipe from remaining in one position and easily clogging the outlet. In addition, during the rotation of the exhaust pipe, the carbon dioxide can better mix and react with the absorptive water, accelerating the replacement rate and improving work efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall external structure of the separation box of the present invention; Figure 3 This is a front view of the internal structure of the separation box of the present invention; Figure 4 This is a schematic diagram of the connection structure between the water jet screen and the cleaning frame of the present invention; Figure 5 This is a schematic diagram of the planar structure of the cleaning frame of the present invention; Figure 6 This is a schematic diagram of the overall structure of the replacement mechanism of the present invention; Figure 7 This is a schematic diagram of the rotating rod and air outlet pipe structure of the present invention; Figure 8 This is a schematic diagram of the overall structure of the drying mechanism of the present invention.

[0020] In the diagram: 10. Separation box; 101. Liquid inlet pipe; 102. Control panel; 103. Discharge port; 104. Air inlet pipe; 105. Connecting pipe; 20. Filtration mechanism; 21. Electric actuator; 22. Telescopic rod; 23. Water jet screen; 24. Screen trough; 25. Slide chute; 26. Cleaning frame; 27. Cleaning line; 28. Roller; 29. ​​Guide rail; 30. Waste bin; 40. Replacement mechanism; 41. Rotating rod; 42. Exhaust pipe; 43. Outlet... 44. Vent; 45. Bourdon tube; 46. Gear; 47. Lever; 50. Gear plate; 50. Detection box; 501. Liquid outlet pipe; 502. Electrically controlled valve; 60. Methane sensor; 70. Water pump; 701. Water inlet pipe; 702. Water outlet pipe; 80. Support frame; 90. Drying mechanism; 91. Drying oven; 92. Sealing cover; 93. Vent pipe; 94. Rectangular groove; 95. Silica gel; 96. Pressure plate; 97. Vent hole; 98. Pressure rod. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] This invention discloses a high-level delamination water vapor extraction device, such as... Figure 1-8As shown, the system includes a separation box 10, a filtration mechanism 20, an electric push rod 21, a water jet screen 23, and a cleaning frame 26. The side wall of the electric push rod 21 is fixedly installed on the separation box 10, and a telescopic rod 22 is installed at the output end of the electric push rod 21. The side end of the telescopic rod 22 is fixedly connected to the cleaning frame 26. The outer wall of the water jet screen 23 is fixedly connected to the inner wall of the separation box 10. The water jet screen 23 has multiple screen grooves 24. The top of the water jet screen 23 has symmetrically opened sliding grooves 25. The two side walls of the sliding grooves 25 are correspondingly inserted into the cleaning frame 26. The inner wall of the cleaning frame 26 is vertically fixedly connected to multiple sets of cleaning lines 27, and each cleaning line 27 is correspondingly inserted into the screen groove 24. It should be noted that a displacement mechanism 40 is provided inside the separation box 10, which is located directly below the water jet screen 23. An air inlet pipe 104 is fixedly connected to one side of the separation box 10, which is used to supply air to the displacement mechanism 40. A detection box 50 is fixedly connected to the other side of the separation box 10. A methane sensor 60 is installed on the inner wall of the detection box 50. A water pump 70 is installed on the top of the detection box 50. A water inlet pipe 701 is fixedly connected to the bottom of the water pump 70, and the bottom end of the water inlet pipe 701 extends into the detection box 50. A water outlet pipe 702 is fixedly connected to the side of the water pump 70 facing the separation box 10, and the side end of the water outlet pipe 702 extends into the separation box 10. The water outlet pipe 702 is located below the water jet screen 23.

[0023] It should be noted that rollers 28 are fixedly connected to both sides of the cleaning frame 26, and guide rails 29 are symmetrically fixedly connected to the inner wall of the separation box 10. Both rollers 28 and guide rails 29 are located below the screen groove 24. The rollers 28 and guide rails 29 are slidably connected. The use of rollers 28 and guide rails 29 makes the movement of the cleaning frame 26 smoother and more stable. Furthermore, multiple sets of rollers 28 and guide rails 29 can be set. Here, in order to save costs, only one set is set for use.

[0024] In addition, a connecting pipe 105 is provided at the connection between the separation box 10 and the detection box 50 for connection. A liquid outlet pipe 501 is installed on one side of the detection box 50. Both the connecting pipe 105 and the liquid outlet pipe 501 are equipped with an electric control valve 502.

[0025] Specifically, the separation box 10 has a discharge port 103 on its side wall, and the discharge port 103 is located above the water jet screen 23. A waste residue box 30 is fixedly connected to the side wall of the separation box 10, covering the outside of the discharge port 103 and located above the air inlet pipe 104. The outer wall of the waste residue box 30 should be equipped with a movable door. The waste residue box 30 facilitates the rapid collection of waste residue. The cleaning frame 26 pushes the solid waste residue towards the waste residue box 30. With the discharge port 103, the waste residue enters the waste residue box 30 for rapid collection, which is more convenient and practical.

[0026] The working principle of the above technical solution is as follows: In the process of use, a long borehole is first drilled in the soft rock layer of the mine to connect the water-air mixture in the overburden abscission layer. The water-air mixture in the overburden abscission layer is introduced into the separation box 10. After the filtration mechanism 20 removes impurities from the abscission water, the abscission water is filtered through the water jet screen 23. Solids remain at the top of the water jet screen 23, and the liquid flows downward through the water jet screen 23 for collection. The electric actuator 21 drives the water jet screen 23 to reciprocate. The water jet screen 23 reciprocates on the water jet screen 23. The cleaning line 27 cleans the screen trough 24. Cleaning prevents blockages and pushes the waste residue left on the top of the water jet screen 23 towards the side wall of the separation tank 10 for easy collection. Carbon dioxide gas is introduced into the replacement mechanism 40 through the air inlet pipe 104 to replace the methane in the absorptive water. The replaced absorptive water is sent into the detection tank 50 and detected by the methane sensor 60. If the methane concentration in the absorptive water is lower than the preset threshold, the absorptive water is directly discharged and collected. If the methane concentration in the absorptive water is higher than the preset threshold, the water pump 70 is started to return the absorptive water to the separation tank 10 for replacement again. This cycle is repeated until the standard discharge is reached.

[0027] In a specific embodiment: the replacement mechanism 40 includes a rotating rod 41, a spring tube 44 and a lever 46. The two ends of the rotating rod 41 are connected to the inner wall of the separation box 10 through bearings, and the rotating rod 41 is hollow. Multiple sets of exhaust pipes 42 are symmetrically fixedly connected to the rotating rod 41, and multiple sets of air outlet holes 43 are opened on the exhaust pipes 42. One end of the spring tube 44 is fixedly connected to the air inlet pipe 104, and the other end of the spring tube 44 is fixedly connected to the rotating rod 41.

[0028] It should be noted that a gear 45 is fixedly connected to the middle of the rotating rod 41, the top of the lever 46 is fixedly connected to the bottom of the cleaning frame 26, and a toothed plate 47 is fixedly connected to the bottom of the lever 46. The bottom of the toothed plate 47 meshes with the outer wall of the gear 45.

[0029] The working principle of the above technical solution is as follows: During use, carbon dioxide is connected to the air inlet pipe 104 and transported to the rotating rod 41 through the spring tube 44. It is then discharged through the air outlet 43 and reacts with the absorptive water in the separation box 10 to replace methane. A lever 46 is provided, which reciprocates with the cleaning frame 26. During the movement of the lever 46, the toothed plate 47 moves. When the toothed plate 47 passes above the rotating rod 41, it meshes with the gear 45, thereby driving the rotating rod 41 to rotate. The rotation of the rotating rod 41 will flip the position of the exhaust pipe 42, preventing the exhaust pipe 42 from remaining in the same position and easily clogging the air outlet 43. In addition, during the rotation of the exhaust pipe 42, the carbon dioxide can better mix and react with the absorptive water, accelerate the replacement rate, and improve working efficiency.

[0030] In one specific embodiment: a support frame 80 is fixedly connected to the top of the detection box 50. The top of the support frame 80 is set as an open structure. A drying mechanism 90 is provided inside the support frame 80 for drying the precipitated methane gas.

[0031] It should be noted that the drying mechanism 90 includes a drying chamber 91 fixedly connected to the support frame 80. An air outlet pipe 93 is fixedly connected to the side of the drying chamber 91 facing away from the separation box 10. The side end of the air outlet pipe 93 extends outward through the support frame 80. Silica gel 95 and a pressure plate 96 are placed inside the drying chamber 91. The pressure plate 96 is located on the side of the silica gel 95 facing the separation box 10. A pressure rod 98 is fixedly connected to the outer wall of the pressure plate 96.

[0032] It should be noted that the top of the drying chamber 91 is equipped with a sealing cover 92, and a rectangular groove 94 is opened on the side of the drying chamber 91 facing the separation chamber 10. Multiple air vents 97 are opened on the pressure plate 96, and the side end of the pressure rod 98 extends into the separation chamber 10 through the rectangular groove 94.

[0033] In addition, an inlet pipe 101 is fixedly connected to the top of the separation box 10, and a control panel 102 is installed on the outer wall of the separation box 10.

[0034] The working principle of the above technical solution is as follows: During use, the displaced methane enters the drying mechanism 90 for further filtration. The silica gel 95 absorbs the moisture in the methane, and the filtered pure methane is recycled through the outlet pipe 93. It is highly practical. The sealing cover 92 facilitates the opening and closing of the drying chamber 91 and allows for quick replacement of the silica gel 95. The silica gel 95 can be recycled, saving costs. With the pressure plate 96 and pressure rod 98, as the cleaning frame 26 moves, the closer it gets to the drying chamber 91, the closer the cleaning frame 26 gets to the pressure rod 98, until the cleaning frame 26 abuts against the pressure rod 98, pushing the pressure plate 96 towards the silica gel 95 and squeezing it to expel the absorbed moisture. When the cleaning frame 26 and pressure rod 98 are no longer in contact, the silica gel 95 is no longer pressed and, according to its own properties, will spring back to its original position. By pressing, the service life of the silica gel 95 can be extended, the replacement frequency can be reduced, and the overall work efficiency is higher.

[0035] The contents not described in detail in this description are existing technologies known to those skilled in the art. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-level delamination water vapor extraction device, comprising a separation box (10), characterized in that, The separation box (10) is equipped with a filtration mechanism (20), which contains an electric push rod (21), a water jet screen (23), and a cleaning frame (26). The side wall of the electric push rod (21) is fixedly installed on the separation box (10), and a telescopic rod (22) is installed at the output end of the electric push rod (21). The side end of the telescopic rod (22) is fixedly connected to the cleaning frame (26). The outer wall of the water jet screen (23) is fixedly connected to the inner wall of the separation box (10). The water jet screen (23) has multiple screen grooves (24). The top of the water jet screen (23) has symmetrically opened sliding grooves (25). The two side walls of the sliding grooves (25) are correspondingly inserted into the cleaning frame (26). The inner wall of the cleaning frame (26) is vertically fixedly connected to multiple sets of cleaning lines (27), and each cleaning line (27) is correspondingly inserted into the screen groove (24). The separation box (10) is equipped with a displacement mechanism (40), which is located directly below the water jet screen (23). An air inlet pipe (104) is fixedly connected to one side of the separation box (10) and is used to supply air to the displacement mechanism (40). A detection box (50) is fixedly connected to the other side of the separation box (10). A methane sensor (60) is installed on the inner wall of the detection box (50). A water pump (70) is installed on the top of the detection box (50). A water inlet pipe (701) is fixedly connected to the bottom of the water pump (70) and extends to the detection box (50). A water outlet pipe (702) is fixedly connected to the side of the water pump (70) facing the separation box (10) and extends to the separation box (10). The water outlet pipe (702) is located below the water jet screen (23).

2. The high-level delamination water vapor extraction device according to claim 1, characterized in that: Rollers (28) are fixedly connected to both sides of the cleaning frame (26), and guide rails (29) are symmetrically fixedly connected to the inner wall of the separation box (10). The rollers (28) and guide rails (29) are both located below the screen groove (24), and the rollers (28) and guide rails (29) are slidably connected.

3. The high-level delamination water vapor extraction device according to claim 1, characterized in that: A connecting pipe (105) is provided at the connection between the separation box (10) and the detection box (50) for connection. A liquid outlet pipe (501) is installed on one side of the detection box (50). An electric control valve (502) is installed on both the connecting pipe (105) and the liquid outlet pipe (501).

4. The high-level delamination water vapor extraction device according to claim 1, characterized in that: The separation box (10) has a discharge port (103) on its side wall, and the discharge port (103) is located above the water jet screen (23). A waste residue box (30) is fixedly connected to the side wall of the separation box (10). The waste residue box (30) covers the outside of the discharge port (103) and is located above the air inlet pipe (104). The outer wall of the waste residue box (30) should be equipped with a movable door.

5. The high-level delamination water vapor extraction device according to claim 1, characterized in that: The replacement mechanism (40) includes a rotating rod (41), a spring tube (44), and a lever (46). The two ends of the rotating rod (41) are connected to the inner wall of the separation box (10) through bearings. The rotating rod (41) is hollow. Multiple sets of exhaust pipes (42) are symmetrically fixedly connected to the rotating rod (41). Multiple sets of air outlets (43) are opened on the exhaust pipes (42). One end of the spring tube (44) is fixedly connected to the air inlet pipe (104), and the other end of the spring tube (44) is fixedly connected to the rotating rod (41).

6. The high-level delamination water vapor extraction device according to claim 5, characterized in that: A gear (45) is fixedly connected to the middle of the rotating rod (41), the top of the lever (46) is fixedly connected to the bottom of the cleaning frame (26), and a toothed plate (47) is fixedly connected to the bottom of the lever (46). The bottom of the toothed plate (47) meshes with the outer wall of the gear (45).

7. The high-level delamination water vapor extraction device according to claim 1, characterized in that: The top of the detection box (50) is fixedly connected to a support frame (80), the top of the support frame (80) is set as an open structure, and a drying mechanism (90) is provided inside the support frame (80) for drying the precipitated methane gas.

8. The high-level delamination water vapor extraction device according to claim 7, characterized in that: The drying mechanism (90) includes a drying chamber (91) fixedly connected to a support frame (80). An air outlet pipe (93) is fixedly connected to the side of the drying chamber (91) facing away from the separation box (10). The side end of the air outlet pipe (93) extends outward through the support frame (80). Silica gel (95) and a pressure plate (96) are placed inside the drying chamber (91). The pressure plate (96) is located on the side of the silica gel (95) facing the separation box (10). A pressure rod (98) is fixedly connected to the outer wall of the pressure plate (96).

9. A high-level delamination water vapor extraction device according to claim 8, characterized in that: The drying box (91) is equipped with a sealing cover (92) on the top. The drying box (91) has a rectangular groove (94) on the side facing the separation box (10). The pressure plate (96) has multiple air holes (97). The side end of the pressure rod (98) extends into the separation box (10) through the rectangular groove (94).

10. The high-level delamination water vapor extraction device according to claim 1, characterized in that: The top of the separation box (10) is fixedly connected to the liquid inlet pipe (101), and the outer wall of the separation box (10) is equipped with a control panel (102).

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