Mine water inrush blocking device and blocking method

Abstract

The present invention discloses a mine water inrush blocking device and a blocking method, and relates to the technical field of mine water inrush blocking. The blocking device comprises a first blocking plate and a second blocking plate, a water discharge mechanism is arranged between the first blocking plate and the second blocking plate, a water permeable hole is opened in the middle of the first blocking plate, and the water discharge mechanism comprises a flexible bag, and a sealing component and a flow control component are arranged on the flexible bag. The present invention utilizes the first blocking plate and the second blocking plate to directly consume the water inrush pressure and simultaneously blocks the water inrush, thereby ensuring that the blocking device can quickly respond to the water inrush pouring into the mine, and further utilizes the sealing component to reduce the flow of the water inrush entering the flexible section, thereby ensuring the escape time of the staff when the water inrush occurs, and according to the water inrush pressure in the mine, the flow control component is cooperated to control the input efficiency of the water inrush into the corrugated section, thereby realizing flexible dynamic pressure relief of the water inrush pressure in the mine, thereby ensuring the stability of the blocking device when dealing with high-pressure water inrush in the mine.

Description

Technical Field

[0001] The invention relates to the technical field of mine water inrush blocking, and in particular to a mine water inrush blocking device and a blocking method. Background Art

[0002] At present, before mine excavation construction, geological exploration of the mining area will be carried out in advance to understand the location and distribution characteristics of water bodies. However, during mine excavation construction, affected by the complexity of hydrogeological conditions, water-rushing faults and strong aquifers near the mine are still easily exposed and flow into the mine. If the sudden water cannot be effectively blocked, the water disaster will spread rapidly. The staff will not have time to escape, and subsequent life-saving and disaster relief work will be difficult to implement, causing huge safety hazards.

[0003] The Chinese patent application number 202310125635.3 discloses a method for controlling water hazard in mine goaf by drilling and draining water to prevent water accumulation. According to the geological conditions, the occurrence of overburden aquifers and impermeable layers, the development of overburden fractures caused by mining, and the exploration results of electrical and geophysical methods, the water accumulation in the goaf is controlled through dynamic recharge sources and static water storage spaces, forming a systematic and complete method for controlling water hazard in goaf.

[0004] Chinese patent application number 201410218742.1 discloses a method for blocking water inrush from old mine goaf. In a coal mine excavation tunnel, a tunnel water blocking section is set at a position more than 5 meters behind the excavation working face, and a flexible water blocking device containing a flexible water blocking airbag is set in the tunnel water blocking section.

[0005] However, due to the suddenness and high pressure of the water inrush into the mine, it is impossible to quickly block the water inrush, and it is difficult to quickly and effectively control the water disaster, and it is impossible to adapt to different water inrush situations.

[0006] In addition, as the sudden water flow continues into the mine and the pressure of the sudden water flow into the mine cannot be released, the water blocking pressure becomes greater and greater, and the pressure inside the mine also becomes higher and higher, which aggravates the damage to the blocking device and affects the stability of the blocking device in blocking the sudden water flow, making it impossible to ensure the escape time of the workers in the event of a sudden water flow.

[0007] Therefore, a mine water inrush blocking device and a blocking method are proposed to solve the above problems. Summary of the invention

[0008] The purpose of the present invention is to disclose a mine water inrush blocking device and a blocking method to solve the problems raised in the above background technology.

[0009] To achieve the above objectives, the present invention is implemented through the following technical solutions: A mine water inrush blocking device, comprising a first blocking plate and a second blocking plate, a water discharge mechanism is provided between the first blocking plate and the second blocking plate, and a water permeable hole is provided in the middle of the first blocking plate;

[0010] The drainage mechanism comprises a flexible bag, on which a plugging component and a flow control component are arranged, the plugging component comprises a first frame, a first inner hole is opened in the middle of the first frame, a vertical plate is arranged on the inner side of the first inner hole, a plugging head is arranged on the side of the vertical plate close to the first blocking plate, a connecting plate is arranged on the outer side of the plugging head, a connecting column is arranged on one side of the connecting plate, and the connecting plate is connected to the first frame through the connecting column;

[0011] The flow control assembly includes a second frame, the interior of the second frame is rotatably connected with a baffle, the bottom of the second frame is provided with an electric telescopic rod, and the telescopic end of the electric telescopic rod drives the baffle to rotate and adjust around the center point of the baffle.

[0012] Optionally, the flexible bag includes a flexible section and a corrugated section, one end of the flexible section is fixedly connected to the first blocking plate, one end of the corrugated section is fixedly connected to the second blocking plate, the flow control component is arranged between the flexible section and the corrugated section, and the sealing component is arranged at one end of the flexible section close to the first blocking plate.

[0013] Optionally, a support assembly and a reinforcement column are provided between the first blocking plate and the second blocking plate, the support assembly is fixedly connected to the second frame through the first support plate, the two ends of the reinforcement column are respectively fixedly connected to the first blocking plate and the second blocking plate, and the reinforcement column is fixedly connected to the first frame through the second support plate.

[0014] Optionally, the plugging head corresponds to the water-permeable hole, the plugging head is a truncated cone structure, a first permanent magnet is provided on the side of the vertical plate away from the plugging head, and an electromagnet is provided on one end of the baffle plate close to the vertical plate.

[0015] Optionally, a second inner hole is opened in the middle of the second frame body, and the second inner hole is set to be a square hole. The baffle is rotatably connected to the inside of the second inner hole. Rotation grooves are opened on both sides of the second inner hole. Rotation columns corresponding to the rotation grooves are set in the middle of both ends of the baffle. There are multiple baffles, and the multiple baffles are arranged at equal intervals.

[0016] Optionally, the telescopic end of the electric telescopic rod passes through the bottom of the second frame and is provided with a lifting rod, the lifting rod passes through the movable groove and is movably connected to the top of the second inner hole, a movable groove is opened in the middle of the baffle, a sliding groove is provided inside the movable groove, and a ball bearing corresponding to the sliding groove is rotatably connected to the lifting rod.

[0017] Optionally, a limiting groove is provided on one side of the first frame body close to the connecting plate, a first pressure sensor is provided inside the limiting groove, and the first pressure sensor is fixedly connected to an end of the connecting column away from the connecting plate.

[0018] The present invention also provides a mine water inrush blocking method, wherein the mine water inrush blocking method uses the mine water inrush blocking device as described above to block the mine water inrush, and comprises the following steps:

[0019] S1. When water rushes into the mine, the first blocking plate and the second blocking plate bear the impact force of the water rush and block the water rush. As the water rushes into the mine, the water level in the mine becomes higher and higher. When the water level reaches the height of the water permeable hole, the water enters the water discharge mechanism to release pressure, so as to reduce the water rush pressure in the mine.

[0020] S2, when the water burst is released through the water discharge mechanism, the water burst is controlled by the plugging head to reduce the flow of the flexible bag;

[0021] S3, during the process of the sudden water being input into the flexible bag, the flow control component adjusts the flow rate of the sudden water being input into the corrugated section according to the detected sudden water pressure value;

[0022] S4. During the process of collecting the sudden water by the corrugated section, the sudden water pressure in the mine is released, and the escape time of the workers is extended at the same time.

[0023] Technical effects and advantages of the present invention:

[0024] 1. The present invention utilizes the first blocking plate, the supporting assembly, the reinforcing column and the second blocking plate to directly consume the water inrush pressure and block the water inrush at the same time, thereby ensuring that the blocking device can quickly respond to the water inrush pouring into the mine. In addition, the blocking assembly is used to reduce the flow of the water inrush entering the flexible section to ensure the escape time of the staff when the water inrush occurs.

[0025] 2. The present invention controls the input efficiency of water inrush into the corrugated section in cooperation with the flow control component according to the water inrush pressure in the mine, realizes flexible dynamic pressure relief of water inrush pressure in the mine, achieves the purpose of reducing water inrush pressure in the mine, and ensures the stability of the blocking device when dealing with high-pressure water inrush in the mine.

[0026] 3. The present invention stably supports the first blocking plate and the second blocking plate through the support assembly and the reinforcing column, and at the same time keeps the positions of the sealing assembly and the flow control assembly corresponding to each other. When the sudden water in the mine is continuously transported into the corrugated section under high pressure, the volume of the corrugated section is extended by the support assembly, thereby increasing the capacity of the corrugated section for sudden water, and further increasing the collection amount of sudden water in the mine. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1It is a schematic diagram of the first blocking plate, the second blocking plate and the water draining mechanism of the present invention;

[0028] Figure 2 It is a schematic diagram of the internal structure of the water discharge mechanism of the present invention;

[0029] Figure 3 For the present invention Figure 2 A schematic diagram of an enlarged structure of the plugging component;

[0030] Figure 4 For the present invention Figure 2 Schematic diagram of the structure of the flow control component;

[0031] Figure 5 It is a schematic diagram of the connection structure between the baffle and the second frame of the present invention;

[0032] Figure 6 It is a schematic diagram of the connection structure between the lifting rod and the baffle of the present invention;

[0033] Figure 7 It is a schematic diagram of the safety door structure arrangement of the present invention.

[0034] In the figure: 1. first blocking plate; 101. water-permeable hole; 2. second blocking plate; 3. water-draining mechanism; 4. flexible bag; 401. flexible section; 402. corrugated section; 5. plugging assembly; 501. first frame; 502. first inner hole; 503. vertical plate; 5031. first permanent magnet block; 504. plugging head; 505. connecting plate; 506. limiting groove; 507. first pressure sensor; 508. connecting column; 5081. spring; 6. flow control assembly; 601. second frame; 602. second inner hole; 603. baffle; 604. movable groove; 605. lifting rod; 606. electric telescopic rod; 607. electromagnet; 7. support assembly; 701. hydraulic cylinder; 702. support column; 703. docking hole; 704. first support plate; 8. reinforcing column; 801. second support plate. DETAILED DESCRIPTION

[0035] In order to more clearly understand the above-mentioned purposes, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0036] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from the description. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0037] Example 1

[0038] See also Figure 1-7 This embodiment discloses a mine water inrush blocking device, including a first blocking plate 1 and a second blocking plate 2, and a water discharge mechanism 3 is provided between the first blocking plate 1 and the second blocking plate 2. The water discharge mechanism 3 is used to deal with high-pressure water inrush and reduce the degree of damage to the mine caused by the high-pressure water inrush.

[0039] A water permeable hole 101 is opened in the middle of the first blocking plate 1 , and the inrush water enters the water discharge mechanism 3 through the water permeable hole 101 .

[0040] The drainage mechanism 3 includes a flexible bag 4, on which a sealing component 5 and a flow control component 6 are provided. The sealing component 5 reduces the pressure of the sudden water entering the drainage mechanism 3, and the flow control component 6 controls the flow of the sudden water passing through the flow control component 6.

[0041] Specifically, the blocking component 5 includes a first frame body 501, a first inner hole 502 is opened in the middle of the first frame body 501, a vertical plate 503 is provided on the inner side of the first inner hole 502, and a blocking head 504 is provided on the side of the vertical plate 503 close to the first blocking plate 1. The blocking head 504 is used to block the sudden water to reduce the flow rate of the sudden water entering the flexible bag 4 per unit time, and slow down the filling speed of the sudden water in the flexible bag 4.

[0042] The plugging head 504 corresponds to the water permeable hole 101 and is in a truncated cone structure. By controlling the distance between the plugging head 504 and the water permeable hole 101, the flow rate of the water inrush in the mine into the flexible bag 4 is adjusted.

[0043] Specifically, the flow control component 6 includes a second frame 601, and the second frame 601 is internally rotatably connected with a baffle 603. An electric telescopic rod 606 is provided at the bottom of the second frame 601. The telescopic end of the electric telescopic rod 606 drives the baffle 603 to rotate and adjust about the center point of the baffle 603. The baffle 603 is rectangular in shape, and multiple baffles 603 are provided. The multiple baffles 603 are arranged at equal intervals. Driven by the electric telescopic rod 606, the multiple baffles 603 are controlled to rotate about the center point of each baffle 603 as the center of the circle, and the gap between two adjacent baffles 603 is adjusted, thereby controlling the flow of the sudden water passing through the two baffles 603.

[0044] The flexible bag 4 includes a flexible section 401 and a corrugated section 402, one end of the flexible section 401 is fixedly connected to the first blocking plate 1, and one end of the corrugated section 402 is fixedly connected to the second blocking plate 2. The flow control component 6 is arranged between the flexible section 401 and the corrugated section 402, and the blocking component 5 is arranged at one end of the flexible section 401 close to the first blocking plate 1. When the sudden water enters the flexible bag 4, it first passes through the flexible section 401, and then passes through the flow control component 6 and enters the corrugated section 402. In the initial state, the corrugated section 402 is in a contracted state. During the process of the sudden water entering the corrugated section 402, the corrugated section 402 stretches and expands.

[0045] A support assembly 7 and a reinforcement column 8 are provided between the first blocking plate 1 and the second blocking plate 2 , and a stable support is formed between the first blocking plate 1 and the second blocking plate 2 by using the support assembly 7 and the reinforcement column 8 .

[0046] The support assembly 7 is fixedly connected to the second frame body 601 via the first support plate 704 , and the cooperation between the support assembly 7 and the first support plate 704 realizes stable support for the flow control assembly 6 .

[0047] Both ends of the reinforcing column 8 are fixedly connected to the first blocking plate 1 and the second blocking plate 2 respectively. The reinforcing column 8 is fixedly connected to the first frame 501 through the second supporting plate 801 . The reinforcing column 8 stably supports the blocking assembly 5 through the second supporting plate 801 .

[0048] A second inner hole 602 is provided in the middle of the second frame body 601, and the second inner hole 602 is set as a square hole. The baffle 603 is rotatably connected to the inside of the second inner hole 602. Sealing gaskets are provided at both ends of the baffle 603. Rotation grooves are provided on both sides of the second inner hole 602. Rotation columns corresponding to the rotation grooves are provided in the middle of both ends of the baffle 603. Through the corresponding cooperation of the rotation grooves and the rotation columns, the second frame body 601 can movably support the baffle 603.

[0049] The telescopic end of the electric telescopic rod 606 passes through the bottom of the second frame 601 and is provided with a lifting rod 605. The lifting rod 605 passes through the movable groove 604 and is movably plugged with the top of the second inner hole 602. A movable groove 604 is opened in the middle of the baffle 603. A sliding groove is arranged inside the movable groove 604. A ball corresponding to the sliding groove is rotatably connected to the lifting rod 605. Through the cooperation between the ball and the sliding groove, when the electric telescopic rod 606 pushes upward, the baffle 603 rotates clockwise, and the ball slides to one end of the sliding groove. Similarly, when the electric telescopic rod 606 contracts downward, the baffle 603 rotates counterclockwise, and the ball slides to the other end of the sliding groove. When the electric telescopic rod 606 moves up and down, the baffle 603 can flexibly rotate clockwise or counterclockwise with the rotating column in the middle as the center, thereby controlling the gap between two adjacent baffles 603.

[0050] A connecting plate 505 is provided on the outer side of the plugging head 504, and a connecting column 508 is provided on one side of the connecting plate 505. The connecting plate 505 is connected to the first frame 501 through the connecting column 508. A limiting groove 506 is provided on the side of the first frame 501 close to the connecting plate 505. A first pressure sensor 507 is provided inside the limiting groove 506. The first pressure sensor 507 is fixedly connected to one end of the connecting column 508 away from the connecting plate 505, and the water inrush pressure when the water inrush enters the flexible section 401 is detected by the first pressure sensor 507.

[0051] A first permanent magnet 5031 is disposed on one side of the vertical plate 503 away from the plugging head 504 , an electromagnet 607 is disposed on one end of the baffle 603 close to the vertical plate 503 , and a spring 5081 is disposed on one end of the connecting column 508 located in the limiting groove 506 .

[0052] When the blocking device is installed, an installation groove is opened on the side wall of the mine, and a reinforcement plate is fixedly installed in the installation groove. The reinforcement plate is fixed by anchor rods, and the first blocking plate 1 and the second blocking plate 2 are reinforced and installed at both ends of the reinforcement plate. The blocking device maintains a safe distance from the working face of the mine excavation. A safety door is provided on one side of the blocking device, and the door body of the safety door is normally sealed and closed, that is, the door body is automatically sealed and closed after the staff passes through the door body. Ventilation equipment is provided in the space between the working face of the mine excavation and the first blocking plate 1, and the coal and rock layers mined in the mine are transported outward by conveying equipment after passing through the safety door.

[0053] When the staff found that water was rushing into the mine, they quickly opened the door of the safety door and escaped quickly through the safety door, and the door closed automatically after opening.

[0054] When the water inrush in the mine does not reach the water hole 101, the elastic force of the spring 5081 is used to insert the plugging head 504 into the water hole 101 to form a seal. When the water inrush in the mine reaches the level of the water hole 101, the pressure of the plugging head 504 squeezed by the water inrush causes the pressure threshold detected by the first pressure sensor 507 to increase. At this time, the electromagnet 607 remains energized. As the pressure threshold detected by the first pressure sensor 507 gradually increases, the electric telescopic rod 606 gradually drives the lifting rod 605 to push upward. The baffle 603 is rotated clockwise to shorten the distance between the baffle 603 and the vertical plate 503. The magnetic repulsion between the electromagnet 607 and the first permanent magnet block 5031 on the baffle 603 is used to slowly stretch the spring 5081. At the same time, the distance between the vertical plate 503 and the second frame 601 is synchronously increased. The magnetic repulsion between the electromagnet 607 and the first permanent magnet block 5031 is used to gradually increase the distance between the vertical plate 503 and the second frame 601, and finally the sealing head 504 completely closes the water permeable hole 101.

[0055] Example 2

[0056] See also Figure 1-7 As shown, in actual use, water inrush will quickly rush into the mine. As the level of water inrush in the mine rises, the pressure of water inrush in the mine on the first blocking plate 1 becomes greater and greater, and continues to act on the entire blocking device, thereby affecting the stability of the blocking device in blocking the water body. In this regard, the following embodiments are provided to solve the above problems:

[0057] When in use, a pressure threshold value P1 is preset in the first pressure sensor 507. When the first pressure sensor 507 detects that the pressure threshold value reaches P1, it indicates that the water inrush pressure in the mine has reached a level that affects the overall stability of the blocking device.

[0058] At this time, the electromagnet 607 is powered off and loses its magnetism. The pressure of the sudden water in the mine on the plugging head 504 compresses the spring 5081, and then the sudden water enters the flexible section 401 through the gap between the plugging head 504 and the water permeable hole 101, thereby achieving pressure relief for the sudden water in the mine and reducing the pressure of the sudden water on the first blocking plate 1.

[0059] At this time, the telescopic end of the electric telescopic rod 606 drives the lifting rod 605 to move downward, narrowing the gap between the two adjacent baffles 603, so that the sudden water is transported to the corrugated section 402 at a lower speed. Furthermore, in order to speed up the pressure relief speed of the sudden water in the mine, according to the pressure detected by the first pressure sensor 507, if the pressure of the sudden water in the mine continues to increase during the process of inputting into the flexible section 401, the lifting rod 605 is driven upward by the telescopic end of the electric telescopic rod 606 to increase the gap between the two adjacent baffles 603, so as to speed up the speed of the sudden water in the flexible section 401 passing through the baffle 603, and at the same time, the sudden water in the mine is replenished into the flexible section 401 faster, thereby speeding up the pressure relief speed of the sudden water in the mine.

[0060] It should be noted that when the telescopic end of the electric telescopic rod 606 drives the lifting rod 605 to move upward, and the lifting rod 605 drives the baffle 603 to be horizontal, the resistance of the baffle 603 to the inrushing water is minimal, and the flow rate of the inrushing water through the baffle 603 is maximum.

[0061] Furthermore, the support assembly 7 includes a hydraulic cylinder 701 and a support column 702. The fixed end of the hydraulic cylinder 701 is fixedly connected to the second blocking plate 2. The first support plate 704 is arranged on the telescopic end of the hydraulic cylinder 701. The telescopic end of the hydraulic cylinder 701 is provided with a docking hole 703. One end of the support column 702 is fixedly connected to the first blocking plate 1, and the other end of the support column 702 is matched with the docking hole 703. The end of the support column 702 close to the hydraulic cylinder 701 is provided with a locking mechanism. The locking mechanism is used for the support column 70 2 is locked and fixed with the telescopic end of the hydraulic cylinder 701. Specifically, the locking mechanism is an electromagnetic latch, which includes a latch body, an electromagnet and a spring reset mechanism. The latch body is a hard metal component, and its shape is mutually adapted with the telescopic end of the hydraulic cylinder 701. The magnetic field of the electromagnet is energized to release the latch body to push it outward, thereby achieving locking and fixing with the telescopic end of the hydraulic cylinder 701. When unlocking, the electromagnet is powered off and the magnetic field is lost. The latch body returns to the initial position under the action of the spring reset mechanism, thereby achieving unlocking of the latch.

[0062] In the process of water inrush in the mine continuously being input into the corrugated section 402 through the water permeable hole 101 and the flexible section 401, when the water inrush is continuously input into the flexible section 401 at a water inrush flow rate of the pressure threshold P1 and reaches a preset time, the telescopic end of the hydraulic cylinder 701 is driven to extend forward by the hydraulic cylinder 701, and the second frame 601 is moved toward the first frame 501 through the first support plate 704, so as to expand the volume of the corrugated section 402 and increase the collection amount of mine water inrush by the corrugated section 402.

[0063] When the hydraulic cylinder 701 drives the telescopic end of the hydraulic cylinder 701 to extend forward to a specific distance, the support column 702 is locked and fixed to the telescopic end of the hydraulic cylinder 701 through the locking mechanism, and cooperates with the reinforcing column 8 to maintain stable support for the first blocking plate 1 and the second blocking plate 2.

[0064] On the other hand, during the process of water inrush entering the corrugated section 402 through the water permeable hole 101 and the flexible section 401, the coal and rock layer fragments are accumulated in the gap between the water permeable hole 101 and the plugging head 504 driven by the water inrush flow, which hinders the pressure relief of the water inrush in the mine. In this regard, the following solution is proposed to solve the above problem:

[0065] A flow sensor is provided on the plugging head 504, and a flow threshold Q1 is provided on the flow sensor. When the flow through the gap between the water permeable hole 101 and the plugging head 504 is lower than Q1, , indicating that at this time the accumulation of coal and rock fragments in the gap has reached the level that affects the water inrush and pressure relief in the mine. In response to this, the electromagnet 607 is energized to restore the magnetic force, and then the telescopic end of the electric telescopic rod 606 drives the lifting rod 605 to move up and down, so that the baffle 603 swings back and forth, and the distance between the electromagnet 607 and the first permanent magnet block 5031 changes repeatedly. Specifically, the telescopic end of the electric telescopic rod 606 drives the lifting rod 605 to move upward, and the lifting rod 605 drives the baffle 603 to tend to a horizontal state. At this time, the magnetic repulsion of the electromagnet 607 on the first permanent magnet block 5031 reaches a maximum, and the magnetic repulsion between the electromagnet 607 and the first permanent magnet block 5031 is used to stretch the spring 5081, so that the outer side of the blocking head 504 is closely fitted with the inner wall of the water permeable hole 101 to squeeze the accumulation. When the telescopic end of the retractable rod 606 drives the lifting rod 605 to move downward, the electromagnet 607 and the first permanent magnet block 5031 move away from each other, and the sealing head 504 compresses the spring 5081 again under the action of the water inrush pressure in the mine to shrink. In the process of the telescopic end of the electric telescopic rod 606 driving the baffle 603 to swing up and down through the lifting rod 605, the accumulation between the sealing head 504 and the water permeable hole 101 becomes looser and looser under the action of the magnetic repulsion of the electromagnet 607 on the first permanent magnet block 5031. Then, the high-pressure water inrush in the mine is cooperated to remove the squeezed and broken loose accumulation in the gap, and the patency of the gap between the sealing head 504 and the water permeable hole 101 is restored. Among them, when the flow threshold detected by the flow sensor is higher than Q1, it indicates that the removal of the accumulation in the gap between the sealing head 504 and the water permeable hole 101 is completed.

[0066] Example 3

[0067] A method for blocking water inrush in a mine, wherein the above-mentioned device for blocking water inrush in a mine blocks water inrush in a mine, comprises the following steps:

[0068] S1. When water rushes into the mine, the first blocking plate 1 and the second blocking plate 2 bear the impact force of the water rush and block the water rush. As the water rushes into the mine, the water level in the mine becomes higher and higher. When the water level reaches the height of the water permeable hole 101, it enters the water discharge mechanism 3 to release pressure to reduce the water rush pressure in the mine.

[0069] S2. When the water inrush is released through the water discharge mechanism 3, the water inrush is controlled by the plugging head 504 to reduce the flow rate of the flexible bag 4.

[0070] S3. During the process of the sudden water being input into the flexible bag 4, the flow control component 6 adjusts the flow rate of the sudden water being input into the corrugated section 402 according to the detected sudden water pressure value.

[0071] S4. During the process of collecting the sudden water by the corrugated section 402, the sudden water pressure in the mine is released, and the escape time of the workers is extended at the same time.

[0072] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A mine water inrush blocking device, comprising a first blocking plate (1) and a second blocking plate (2), characterized in that: A water drain mechanism (3) is provided between the first blocking plate (1) and the second blocking plate (2), and a water permeable hole (101) is provided in the middle of the first blocking plate (1); The water discharge mechanism (3) comprises a flexible bag (4), a plugging component (5) and a flow control component (6) being provided on the flexible bag (4), the plugging component (5) comprising a first frame (501), a first inner hole (502) being provided in the middle of the first frame (501), a vertical plate (503) being provided on the inner side of the first inner hole (502), a plugging head (504) being provided on the side of the vertical plate (503) close to the first blocking plate (1), a connecting plate (505) being provided on the outer side of the plugging head (504), a connecting column (508) being provided on one side of the connecting plate (505), and the connecting plate (505) being connected to the first frame (501) via the connecting column (508); The flow control assembly (6) comprises a second frame (601), the interior of the second frame (601) being rotatably connected to a baffle (603), the bottom of the second frame (601) being provided with an electric telescopic rod (606), the telescopic end of the electric telescopic rod (606) driving the baffle (603) to rotate and adjust around the center point of the baffle (603); The plugging head (504) is matched with the water permeable hole (101), the plugging head (504) is in a truncated cone structure, a first permanent magnet (5031) is provided on a side of the vertical plate (503) away from the plugging head (504), and an electromagnet (607) is provided on an end of the baffle plate (603) close to the vertical plate (503); A limiting groove (506) is provided on one side of the first frame (501) close to the connecting plate (505); a spring (5081) is provided at one end of the connecting column (508) located in the limiting groove (506); a first pressure sensor (507) is provided inside the limiting groove (506); and the first pressure sensor (507) is fixedly connected to one end of the connecting column (508) away from the connecting plate (505).

2. The mine water inrush blocking device according to claim 1, characterized in that: The flexible bag (4) comprises a flexible section (401) and a corrugated section (402); one end of the flexible section (401) is fixedly connected to the first blocking plate (1); one end of the corrugated section (402) is fixedly connected to the second blocking plate (2); the flow control component (6) is arranged between the flexible section (401) and the corrugated section (402); and the blocking component (5) is arranged at one end of the flexible section (401) close to the first blocking plate (1).

3. The mine water inrush blocking device according to claim 1, characterized in that: A support assembly (7) and a reinforcing column (8) are provided between the first blocking plate (1) and the second blocking plate (2); the support assembly (7) is fixedly connected to the second frame (601) via the first support plate (704); two ends of the reinforcing column (8) are respectively fixedly connected to the first blocking plate (1) and the second blocking plate (2); and the reinforcing column (8) is fixedly connected to the first frame (501) via the second support plate (801).

4. The mine water inrush blocking device according to claim 1, characterized in that: A second inner hole (602) is provided in the middle of the second frame body (601), and the second inner hole (602) is set as a square hole. The baffle plate (603) is rotatably connected to the inside of the second inner hole (602). Rotation grooves are provided on both sides of the second inner hole (602), and rotation columns corresponding to the rotation grooves are provided in the middle of both ends of the baffle plate (603). The baffle plates (603) are provided in plurality, and the plurality of baffle plates (603) are arranged at equal intervals.

5. The mine water inrush blocking device according to claim 1, characterized in that: The telescopic end of the electric telescopic rod (606) passes through the bottom of the second frame (601) and is provided with a lifting rod (605); the lifting rod (605) passes through the movable groove (604) and is movably plugged into the top of the second inner hole (602); a movable groove (604) is provided in the middle of the baffle (603); a sliding groove is provided inside the movable groove (604); and a ball bearing corresponding to the sliding groove is rotatably connected to the lifting rod (605).

6. A method for blocking water inrush in a mine, wherein the method uses a device for blocking water inrush in a mine as claimed in claim 2 to block water inrush in a mine, characterized in that: The following steps are involved: S1, when water rushes into the mine, the first blocking plate (1) and the second blocking plate (2) bear the impact force of the water rush and block the water rush. As the water rushes into the mine, the water level in the mine becomes higher and higher. When the water level reaches the height of the water permeable hole (101), the water enters the water discharge mechanism (3) to release pressure, thereby reducing the water rush pressure in the mine. S2, when the water inrush is released through the water discharge mechanism (3), the plugging head (504) is used to control the water inrush to reduce the flow rate entering the flexible bag (4); S3, during the process of the sudden water being input into the flexible bag (4), the flow control component (6) adjusts the flow rate of the sudden water being input into the corrugated section (402); S4. During the process of the corrugated section (402) collecting the water inrush, the water inrush pressure in the mine is released, and the escape time of the workers is extended.

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