Drainage device based on coal mine water disaster prevention and control

Abstract

The invention relates to the technical field of drainage equipment for mine construction, and discloses drainage and drainage equipment based on coal mine water disaster prevention and control, which comprises a drainage pipe and further comprises a filtering unit arranged in any vertical section pipe body of the drainage pipe; the filtering unit comprises a first annular plate arranged in the drainage pipe, a conical filtering net is installed on the first annular plate, the limiting unit is arranged in the drainage pipe and located on the side away from the tip end of the conical filtering net, and the limiting unit comprises a fixed annular plate fixedly installed in the drainage pipe; and two baffles are rotationally arranged on the fixed ring plate. By adopting the technical means that the flushing unit is matched with the conical filter screen, the coal mine residues are intercepted on the fixed ring plate through the cooperation of the baffle which is rotationally opened and closed and the conical filter screen, and are flushed away through high-pressure water flow sprayed by the spray head at regular intervals, so that the problem of residue accumulation in the prior art is solved; and the normal operation of drainage equipment and the safety production of a mine are effectively ensured.

Description

Technical Field

[0001] This invention relates to the field of drainage equipment technology for mining construction, specifically a drainage system based on coal mine water hazard prevention and control. Background Technology

[0002] In the process of coal mining, the continuous seepage of groundwater is a common phenomenon. To ensure the safety and efficiency of mining operations, according to the explicit requirements of the "Design Code for Underground Drainage Pumping Stations and Drainage Pipelines in Coal Mines", coal mines must install efficient and reliable disaster-resistant drainage systems to achieve uninterrupted discharge of underground seepage water.

[0003] Existing technologies mostly use mine-specific drainage equipment to achieve uninterrupted discharge of groundwater. In practical applications, we have found that although traditional disaster relief drainage equipment can achieve seepage discharge and residue filtration to a certain extent, it has significant shortcomings in residue cleaning. Due to the long pipeline, especially at bends, it is not easy to clean the residue after filtration. Long-term accumulation can easily lead to pipeline blockage, which in turn seriously affects the normal operation of drainage equipment and the safe production of the mine. Summary of the Invention

[0004] The purpose of this invention is to provide a drainage device for preventing and controlling water hazards in coal mines, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a drainage device for coal mine water hazard prevention, comprising a drainage pipe and further comprising: a filter unit disposed within any vertical section of the drainage pipe; the filter unit comprising a first annular plate disposed within the drainage pipe, wherein a conical filter screen is installed on the first annular plate;

[0006] A limiting unit is disposed inside the drainage tube and located on the side away from the tip of the conical filter screen; the limiting unit includes a fixed ring plate fixedly installed inside the drainage tube, and two baffles are rotatably disposed on the fixed ring plate;

[0007] A flushing unit is disposed on the drain pipe; the flushing unit includes an inlet pipe fixedly installed on the movable pipe, a nozzle is fixedly installed at one end of the inlet pipe extending into the drain pipe, and the water outlet direction of the nozzle is towards the conical filter screen; at least one outlet pipe is fixedly connected to the drain pipe, and the outlet pipe is located between the first ring plate and the fixed ring plate.

[0008] Preferably, the first ring plate is fixedly installed on the drain pipe, and a check valve is installed on the outlet pipe.

[0009] Preferably, a positioning ring plate is provided between the first ring plate and the fixed ring plate, and the positioning ring plate is fixedly connected to the inner wall of the drain pipe. Two symmetrically arranged limiting plates are fixedly connected to the side of the first ring plate away from the conical filter screen. Both the positioning ring plate and the fixed ring plate are provided with sliding grooves for the corresponding limiting plates to move up and down. Each limiting plate is provided with a drain hole, and the diameter of the drain hole is the same as the inner diameter of the outlet pipe.

[0010] Preferably, the number of water outlet pipes is set to two, and the two water outlet pipes are arranged symmetrically.

[0011] Preferably, the fixed ring plate is fixedly connected with a number of inclined blocks corresponding to the baffle, and the two inclined blocks are arranged symmetrically.

[0012] Preferably, each of the baffles has multiple micro-cutting blades arranged in an array on the side opposite to the conical filter screen.

[0013] Preferably, the micro-cutting blade is configured in a barb shape, with its cutting edge located on the inner side.

[0014] Preferably, the nozzle is configured as a high-pressure rotary nozzle.

[0015] Preferably, two anti-detachment blocks are fixedly connected to the fixing ring plate, and the two anti-detachment blocks are arranged symmetrically.

[0016] Preferably, the pointed tip of the conical filter is closed.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1) This embodiment uses a combination of flushing unit and conical filter screen. By rotating and opening the baffle and using the conical filter screen, coal mine residue is trapped on the fixed ring plate. It is periodically flushed away by high-pressure water jets from the nozzle. This overcomes the problem of residue accumulation in the prior art and effectively ensures the normal operation of the drainage equipment and the safe production of the mine.

[0019] 2) In this embodiment, the baffle and the micro-cutting blade work together. The water flow drives the baffle to rotate, so that the two baffles move closer to each other in a rotating posture. The edge of the micro-cutting blade on the inclined baffle faces the water flow. The hook-shaped micro-cutting blade hooks the flocculent material in the water flow until it is cut off, reducing the probability of it blocking or entangled in the conical filter screen. When the flushing unit flushes the conical filter screen, it is also easier to flush it away, further improving the practicality of this device. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the internal structure in one embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the internal structure in another embodiment of the present invention;

[0023] Figure 4 for Figure 3 A schematic diagram of the 3D structure after switching perspectives.

[0024] In the diagram: 100, drainage tube; 200, filter unit; 300, limiting unit; 400, flushing unit;

[0025] 201. First annular plate; 202. Conical filter screen; 203. Limiting plate; 204. Drainage hole;

[0026] 301. Fixing ring plate; 302. Baffle plate; 303. Positioning ring plate; 304. Wedge block; 305. Miniature cutting blade; 306. Anti-detachment block;

[0027] 401. Inlet pipe; 402. Sprayer head; 403. Outlet pipe; 404. Check valve. Detailed Implementation

[0028] 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.

[0029] Example 1

[0030] Please see Figure 1-2 This embodiment provides a technical solution: a drainage device for coal mine water hazard prevention, including a drainage pipe 100, and further including: a filter unit 200, which is disposed in any vertical section of the drainage pipe 100; the filter unit 200 includes a first ring plate 201 disposed in the drainage pipe 100, and a conical filter screen 202 is installed on the first ring plate 201.

[0031] The limiting unit 300 is disposed inside the drainage tube 100 and located on the side away from the tip of the conical filter screen 202; the limiting unit 300 includes a fixed ring plate 301 fixedly installed inside the drainage tube 100, and two baffles 302 are rotatably disposed on the fixed ring plate 301.

[0032] A flushing unit 400 is disposed on the drain pipe 100. The flushing unit 400 includes an inlet pipe 401 fixedly installed on the movable pipe 100. A nozzle 402 is fixedly installed at one end of the inlet pipe 401 extending into the drain pipe 100, and the water outlet direction of the nozzle 402 is towards the conical filter screen 202. At least one outlet pipe 403 is fixedly connected to the drain pipe 100, and the outlet pipe 403 is located between the first ring plate 201 and the fixed ring plate 301. The first ring plate 201 is fixedly installed on the drain pipe 100, and a check valve 404 is installed on the outlet pipe 403.

[0033] The working principle of this embodiment is as follows:

[0034] First, install the device on the vertical section of the drainage pipeline in the middle section of the mine. After installation, start the drainage equipment. Water flows through the inside of the drainage pipe 100. In the initial state, the two baffles 302 and the fixed ring plate 301 are in a closed state. Water flows into the drainage pipe 100 through the side of the drainage pipe 100 where the baffles 302 are set. Under the action of its scouring force, the two baffles 302 are opened. The water flows through the gap between the baffles 302 and the fixed ring plate 301 to the conical filter screen 202. Most of the impurities in the water are intercepted by the conical filter screen 202.

[0035] When it is necessary to clean the trapped residue, first turn off the drainage equipment. After the water flow stops, the two baffles 302 rotate downward under the action of gravity and return to the closed state. The residue flowing through this point is trapped between the fixed replacement plate 301 and the conical filter screen 202. Then open the stop valve 404. The other end of the water inlet pipe 401 is connected to a water source in advance. Open the valve of the water source to transmit the high-pressure water flow through the water inlet pipe 401 and spray it out through the nozzle 402 to flush the conical filter screen 202, washing off the impurities adhering to the conical filter screen 202. Together with the residue deposited on the fixed replacement plate 301, they are guided into the water outlet pipe 403 for discharge. After cleaning is completed, stop the high-pressure water flow and close the stop valve 404 to complete one cleaning operation. Repeat the above operation whenever cleaning is needed.

[0036] This embodiment employs a combination of a flushing unit 400 and a conical filter screen 202. By rotating and opening the baffle 302 in conjunction with the conical filter screen 202, coal mine residue is trapped on the fixed ring plate 301. It is periodically flushed away by high-pressure water jets from the nozzle 402, overcoming the problem of residue accumulation in the prior art and effectively ensuring the normal operation of the drainage equipment and the safe production of the mine.

[0037] In a further embodiment, the number of water outlet pipes 403 is set to two, and the two water outlet pipes 403 are arranged symmetrically.

[0038] The working principle of this embodiment is as follows:

[0039] Two outlet pipes (403) result in higher water output efficiency and lower cost.

[0040] In a further embodiment, a number of inclined blocks 304 corresponding to the number of baffles 302 are fixedly connected to the fixed ring plate 301, and the two inclined blocks 304 are arranged symmetrically.

[0041] The working principle of this embodiment is as follows:

[0042] The inclined block 304 is designed to prevent the baffle 302 from opening at too large an angle and repeatedly colliding with each other under the scouring action of the water flow, thus extending the service life of the inclined block 304.

[0043] In a further embodiment, each baffle 302 has multiple micro-cutting blades 305 arranged in an array on the side opposite to the conical filter screen 202, and the micro-cutting blades 305 are generally arranged in a barb shape with their cutting edges located on the inner side.

[0044] The working principle of this embodiment is as follows: When the baffle 302 is rotated to an inclined state, the flocculent impurities inside the water flow can be hooked by the barbed micro-cutting blade 305 when the water flows through the position of the baffle 302, until they are cut into pieces and can pass through. This avoids the flocculent impurities from adhering to the conical filter screen 202 and clogging the conical filter screen 202, and further extends the service life of the conical filter screen 202.

[0045] In a further embodiment, the nozzle 402 is configured as a high-pressure rotary nozzle.

[0046] The working principle of this embodiment is as follows: by setting the nozzle 402 as a high-pressure rotating nozzle, the high-pressure water jet sprayed out by the rotation, combined with the conical design of the conical filter screen 202, can further improve the flushing effect and flushing efficiency.

[0047] In a further embodiment, two anti-detachment blocks 306 are fixedly connected to the fixed ring plate 301, and the two anti-detachment blocks 306 are arranged symmetrically.

[0048] The working principle of this embodiment is as follows: the anti-detachment block 306 can effectively limit the baffle 302, prevent it from rotating downwards, and further improve its stability.

[0049] In a further embodiment, the tip of the conical filter 202 is closed.

[0050] The working principle of this embodiment is as follows: the tip of the closed-end conical filter screen 202 can increase the contact area during water rinsing, thereby increasing the water flow's ability to maintain the conical filter screen 202 at its upward position more stably during rinsing, further improving the stability of the device. Please refer to Embodiment Two. Figure 3 , Figure 4 This embodiment provides another technical solution: a drainage device for coal mine water hazard prevention, including a drainage pipe 100, and further comprising:

[0051] The filter unit 200 is disposed in any vertical section of the drainage pipe 100; the filter unit 200 includes a first annular plate 201 disposed in the drainage pipe 100, and a conical filter screen 202 is installed on the first annular plate 201.

[0052] The limiting unit 300 is disposed inside the drainage tube 100 and located on the side away from the tip of the conical filter screen 202; the limiting unit 300 includes a fixed ring plate 301 fixedly installed inside the drainage tube 100, and two baffles 302 are rotatably disposed on the fixed ring plate 301.

[0053] A flushing unit 400 is disposed on the drain pipe 100. The flushing unit 400 includes an inlet pipe 401 fixedly installed on the movable pipe 100. A nozzle 402 is fixedly installed at one end of the inlet pipe 401 that extends into the drain pipe 100, and the water outlet direction of the nozzle 402 is towards the conical filter screen 202. At least one outlet pipe 403 is fixedly connected to the drain pipe 100, and the outlet pipe 403 is located between the first ring plate 201 and the fixed ring plate 301.

[0054] A positioning ring plate 303 is provided between the first ring plate 201 and the fixed ring plate 301, and the positioning ring plate 303 is fixedly connected to the inner wall of the drain pipe 100. Two symmetrically arranged limiting plates 203 are fixedly connected to the side of the first ring plate 201 away from the conical filter screen 202. Both the positioning ring plate 303 and the fixed ring plate 301 are provided with sliding grooves for the corresponding limiting plates 203 to move up and down. Each limiting plate 203 is provided with a drain hole 204, and the diameter of the drain hole 204 is the same as the inner diameter of the outlet pipe 403.

[0055] The working principle of this embodiment is as follows:

[0056] First, install the device on the vertical section of the drainage pipeline in the middle section of the mine. After installation, start the drainage equipment. The water flows through the inside of the drainage pipe 100. In the initial state, the two baffles 302 and the fixed ring plate 301 are in a closed state. The water flows into the drainage pipe 100 through the side where the baffles 302 are set. Under the action of its scouring force, the two baffles 302 are opened. The water flows through the gap between the baffles 302 and the fixed ring plate 301 to the conical filter screen 202. Most of the impurities in the water are intercepted by the conical filter screen 202.

[0057] Simultaneously, under the impact of the water flow, the conical filter screen 202 is pushed upward by the water flow while intercepting impurities, thereby driving the first ring plate 201 and its two limiting plates 203 to move upward synchronously until the protruding part at the bottom of the limiting plate 203 abuts against the bottom of the fixed ring plate 301. At this time, the drainage hole 204 on the limiting plate 203 and the corresponding outlet pipe 403 are misaligned, and the limiting plate 203 can block the outlet pipe 403, effectively preventing the flushing water from entering the outlet pipe 403 and causing unnecessary waste.

[0058] When it is necessary to clean up the trapped residue, first turn off the drainage equipment. After the water flow stops, the two baffles 302 rotate downward under the action of gravity, returning to the closed state. The residue flowing through this point is trapped between the fixed filter plate 301 and the conical filter screen 202. At the same time, the conical filter screen 202 moves downward under the action of gravity, thereby driving the first ring plate 201 and its two limiting plates 203 to move downward synchronously until the first ring plate 201 and the fixed ring plate 301 abut against each other. At this time, the drainage hole 2 Align the nozzle 404 with the outlet pipe 403, then open the water valve to transmit the high-pressure water flow through the inlet pipe 401 and spray it out through the nozzle 402 to flush the conical filter screen 202, washing off the impurities adhering to the conical filter screen 202. These impurities, along with the residue deposited on the fixed heat exchange plate 301, are then discharged through the outlet pipe 403 with the water flow. After cleaning is complete, stop the high-pressure water flow to complete one cleaning operation. Repeat the above operation whenever cleaning is needed.

[0059] In a further embodiment, the number of water outlet pipes 403 is set to two, and the two water outlet pipes 403 are arranged symmetrically.

[0060] The working principle of this embodiment is as follows:

[0061] Two outlet pipes (403) result in higher water output efficiency and lower cost.

[0062] In a further embodiment, a number of inclined blocks 304 corresponding to the number of baffles 302 are fixedly connected to the fixed ring plate 301, and the two inclined blocks 304 are arranged symmetrically.

[0063] The working principle of this embodiment is as follows:

[0064] The inclined block 304 is designed to prevent the baffle 302 from opening at too large an angle and repeatedly colliding with each other under the scouring action of the water flow, thus extending the service life of the inclined block 304.

[0065] In a further embodiment, each baffle 302 has multiple micro-cutting blades 305 arranged in an array on the side opposite to the conical filter screen 202, and the micro-cutting blades 305 are generally arranged in a barb shape with their cutting edges located on the inner side.

[0066] The working principle of this embodiment is as follows: When the baffle 302 is rotated to an inclined state, the flocculent impurities inside the water flow can be hooked by the barbed micro-cutting blade 305 when the water flows through the position of the baffle 302, until they are cut into pieces and can pass through. This avoids the flocculent impurities from adhering to the conical filter screen 202 and clogging the conical filter screen 202, and further extends the service life of the conical filter screen 202.

[0067] In a further embodiment, the nozzle 402 is configured as a high-pressure rotary nozzle.

[0068] The working principle of this embodiment is as follows: by setting the nozzle 402 as a high-pressure rotating nozzle, the high-pressure water jet sprayed out by the rotation, combined with the conical design of the conical filter screen 202, can further improve the flushing effect and flushing efficiency.

[0069] In a further embodiment, two anti-detachment blocks 306 are fixedly connected to the fixed ring plate 301, and the two anti-detachment blocks 306 are arranged symmetrically.

[0070] The working principle of this embodiment is as follows: the anti-detachment block 306 can effectively limit the baffle 302, prevent it from rotating downwards, and further improve its stability.

[0071] In a further embodiment, the tip of the conical filter 202 is closed.

[0072] The working principle of this embodiment is as follows: the tip of the cone-shaped filter screen 202 with a closed opening can increase the contact area when the water flows, thereby increasing the water flow to ensure that the cone-shaped filter screen 202 can be more stably maintained at the height after it moves up during rinsing, further improving the stability of this device.

[0073] 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 drainage system for coal mine water hazard prevention, comprising a drainage pipe (100), characterized in that, Also includes: A filter unit (200) is disposed in any vertical section of the drainage pipe (100); the filter unit (200) includes a first ring plate (201) disposed in the drainage pipe (100), and a conical filter screen (202) is installed on the first ring plate (201). A limiting unit (300) is disposed inside the drainage tube (100) and located on the side away from the tip of the conical filter screen (202); the limiting unit (300) includes a fixing ring plate (301) fixedly installed inside the drainage tube (100), and two baffles (302) are rotatably disposed on the fixing ring plate (301). A flushing unit (400) is disposed on the drain pipe (100); the flushing unit (400) includes an inlet pipe (401) fixedly installed on the movable pipe (100), and a nozzle (402) is fixedly installed at one end of the inlet pipe (401) extending into the drain pipe (100), and the water outlet direction of the nozzle (402) is towards the conical filter screen (202). At least one outlet pipe (403) is fixedly connected to the drain pipe (100), and the outlet pipe (403) is located between the first ring plate (201) and the fixed ring plate (301).

2. The drainage and diversion equipment based on coal mine water hazard prevention according to claim 1, characterized in that: The first ring plate (201) is fixedly installed on the drainage pipe (100), and a check valve (404) is installed on the water outlet pipe (403).

3. The drainage and diversion equipment based on coal mine water hazard prevention according to claim 1, characterized in that: A positioning ring plate (303) is provided between the first ring plate (201) and the fixed ring plate (301), and the positioning ring plate (303) is fixedly connected to the inner wall of the drainage pipe (100). Two symmetrically arranged limiting plates (203) are fixedly connected to the side of the first ring plate (201) away from the conical filter screen (202). The positioning ring plate (303) and the fixed ring plate (301) are both provided with sliding grooves for the corresponding limiting plates (203) to move up and down. Each limiting plate (203) is provided with a drainage hole (204), and the diameter of the drainage hole (204) is the same as the inner diameter of the water outlet pipe (403).

4. A drainage and diversion device for coal mine water hazard prevention according to claim 2 or 3, characterized in that: The number of water outlet pipes (403) is set to two, and the two water outlet pipes (403) are arranged symmetrically.

5. A drainage and diversion device for coal mine water hazard prevention according to claim 4, characterized in that: The fixed ring plate (301) is fixedly connected with a number of inclined blocks (304) corresponding to the baffle (302), and the two inclined blocks (304) are arranged symmetrically.

6. A drainage and diversion device for coal mine water hazard prevention according to claim 5, characterized in that: Each of the baffles (302) has a plurality of micro-cutting blades (305) arranged in an array on the side opposite to the conical filter (202).

7. A drainage and diversion device for coal mine water hazard prevention according to claim 6, characterized in that: The micro-cutting blade (305) is generally arranged in a barb shape, with its cutting edge located on the inner side.

8. A drainage device for coal mine water hazard prevention according to claim 7, characterized in that: The nozzle (402) is configured as a high-pressure rotary nozzle.

9. A drainage device for coal mine water hazard prevention according to claim 8, characterized in that: Two anti-detachment blocks (306) are fixedly connected to the fixed ring plate (301), and the two anti-detachment blocks (306) are arranged symmetrically.

10. A drainage and diversion device for coal mine water hazard prevention according to claim 9, characterized in that: The pointed end of the conical filter (202) is closed.

Images