Island working face bottom plate water gushing monitoring and treatment device

By using the connection between the drilling shaft and the drainage pipe module, as well as the electromagnetic base, the problem of water inrush expansion during drilling was solved, achieving rapid and effective water inrush control and improving the efficiency of water inrush control on the bottom plate of the isolated working face.

CN223854313UActive Publication Date: 2026-01-30YANKUANG ENERGY GRP CO LTD
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Patent Information

Application Number
CN202521275659.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-20
Publication Date
2026-01-30
Estimated Expiration
2035-06-20

AI Technical Summary

Technical Problem

Existing technologies for dealing with water inrush at the bottom plate of isolated working faces are prone to damaging the borehole walls during drilling, leading to an expansion of the water inrush and increasing the difficulty of treatment. Furthermore, existing devices have low efficiency in water inrush control.

Method used

The system employs a socketed connection between the drilling shaft and the drainage pipe module, and utilizes an electromagnetic base to facilitate the separation of the drilling module and the drilling shaft. Combined with grouting, a sealing layer is formed, which quickly controls water inrush through the drainage pipe. After the water inrush is controlled, the sealing layer is easily broken up.

Benefits of technology

The device can quickly control water inrush without withdrawing the drill shaft, preventing the water inrush from worsening and improving work efficiency. Furthermore, the combination and separation efficiency of the device is improved by using an electromagnetic base, enabling the rapid removal of the drainage pipe module.

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Abstract

The utility model provides an island working face base plate water gushing monitoring and treatment device, which belongs to the technical field of coal mining and comprises a drilling shaft, a transition module is arranged at the front end of the drilling shaft, a drilling module is arranged at the front end of the transition module and comprises a front end frame, and when water gushing is treated, the rear portion of the function frame is connected with a drainage pipeline module. The drilling shaft and the drainage pipeline module are used in a sleeved and matched mode, water gushing treatment operation is rapidly carried out under the condition that the drilling shaft is not retreated, the possibility that the water gushing condition is aggravated in the shaft retreating process is completely eradicated, and the operation efficiency is improved; through cooperative use of the two sets of electromagnetic bases and the functional frame, combination and separation of the drilling shaft, the drilling module and the drainage pipeline module are facilitated, and the efficiency is further improved; and after the water gushing treatment is finished, the leaking stoppage layer is conveniently broken through the inner drilling frame, so that the effect of rapidly moving out the drainage pipeline module is achieved.
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Description

Technical Field

[0001] This utility model belongs to the field of coal mining technology, specifically relating to a monitoring and control device for water inrush at the bottom of an isolated working face. Background Technology

[0002] Early mines mostly employed strip mining and skip mining methods, resulting in various forms of isolated working faces. With technological advancements and the development of fully mechanized mining equipment, mines adopted fully mechanized top-coal caving mining techniques to recover coal pillars in mining roadways, improving resource recovery rates and generating significant economic benefits. However, the working faces are surrounded by goaf areas, and due to high floor pressure and geological structures, water inrush at the working face floor is prone to occur, severely hindering safe production.

[0003] Chinese invention patent CN115573681A, published on January 6, 2023, discloses a mine roadway water inflow control device and its construction and installation method, relating to the field of mine roadway grouting construction technology. It includes an orifice pipe and a grouting mechanism. The orifice pipe is a cylindrical hollow structure, with a slag-proof protective pipe fitted over it. A grouting pipe body is located between the slag-proof protective pipe and the orifice pipe, with one end extending to the top between the slag-proof protective pipe and the orifice pipe. A detachable gate valve is provided between the orifice pipe and the grouting mechanism. A flange is located at the end of the orifice pipe near the gate valve, with one end of the gate valve fixedly connected to the flange and the other end detachably connected to the grouting mechanism. The slag-proof protective pipe isolates and blocks broken rocks, preventing backflow into the orifice pipe and blockage of the borehole. The gate valve at the top of the orifice pipe controls the groundwater flowing into the orifice pipe, preventing groundwater from gushing into the mine roadway.

[0004] When using this invention, a positioning hole needs to be drilled downwards on the working surface, followed by the pre-embedding of a slag-preventing protective pipe and a borehole pipe, before finally grouting and sealing. Of course, before pre-embedding, the drill rod / drill bit in the positioning hole needs to be pulled out. If the base plate at the drilling location is a fractured base plate that has already experienced water seepage, the process of drilling the positioning hole and pulling out the drill rod / drill bit can easily damage the borehole wall, causing the water seepage to expand and increasing the difficulty of water seepage control.

[0005] Chinese invention patent CN113622429B, authorized on April 25, 2025, discloses a device and method for reinforcing the water outlet of a drilled casing. To overcome the deficiencies of the prior art, the device for reinforcing the water outlet of a drilled casing includes a grouting pipe with multiple grouting holes on its middle section sidewall. The device is characterized by: a drainage pipe passing through the inside of the grouting pipe; the upper and lower grouting ports being sealed to the drainage pipe by a conical or annular sealing plate; two externally protruding rings fixedly connected to the upper part of the grouting pipe; an expandable sealing sleeve between the two externally protruding rings; the axis of the grouting pipe coinciding with the axis of the drainage pipe; both being divided into multiple sections; and adjacent upper and lower sections being connected by sealing pipe threads.

[0006] The invention discloses a method for reinforcing water flow from boreholes, comprising the following steps:

[0007] ①. Remove the drill rod and drill bit from the borehole that is experiencing a sudden water inrush;

[0008] ②. Take the top section grouting pipe and drainage pipe, and the bottom section grouting pipe and drainage pipe, and select an appropriate number of intermediate section grouting pipes and intermediate section drainage pipes according to the total length of the drill rod when water inrush occurs in the borehole. Select an appropriate number of matching sealing rubber sleeves. By controlling the number of intermediate section drainage pipes and intermediate section grouting pipes, the length of the grouting pipes and drainage pipes is coarsely adjusted. Use an appropriate number of sealing rubber sleeves to seal the excess grouting holes above the grouting pipes, so that 24.2m ≤ the length of the grouting pipe ≤ the length of the borehole to be reinforced in the waterproof layer of the top plate.

[0009] ③. Then, insert the top grouting pipe and top drainage pipe into the borehole to be reinforced from bottom to top. When their lower ends are almost inserted into the borehole, screw on the upper and lower intermediate grouting pipes and drainage pipes respectively. Then insert them from bottom to top again, and when their lower ends are almost inserted into the borehole, screw on the upper and lower intermediate grouting pipes and drainage pipes respectively. Repeat this process until all selected intermediate drainage pipes and intermediate grouting pipes are screwed on.

[0010] ④. Take all the matching sealing rubber sleeves selected in step ② and put them onto the bottom section grouting pipe in sequence, ensuring that the sealing rubber sleeves and all matching sealing rubber sleeves are tightly pressed together. Then, ensure that the valve at the lower end of the drainage pipe is in the open position, align the bottom section drainage pipe and the bottom section grouting pipe with the bottom ends of the intermediate section drainage pipe and the intermediate section grouting pipe in step ③, respectively, to complete the screw connection of the entire grouting pipe and drainage pipe.

[0011] ⑤. Insert the bottom grouting pipe upwards into the borehole to be reinforced, ensuring that the sealing rubber sleeve or a suitable sealing rubber sleeve is tightly fitted to the inner wall of the lower end of the borehole to be reinforced.

[0012] ⑥. Connect the grout inlet pipe to the outlet pipe of the grouting machine, and turn on the grouting machine to inject reinforcing grout into the grouting pipe. The reinforcing grout is forced through the grouting hole into the gap between the borehole wall and the grouting pipe in the aquitard layer of the roof slab to be reinforced, as well as into the rock fissures in the aquitard layer of the roof slab to be reinforced. This forces the expandable sealing sleeve to tightly seal against the borehole wall at the uppermost part of the aquitard layer, preventing water from the aquifer from entering the aquitard borehole. Maintain pressure until the reinforcing grout solidifies, and the reinforcement of the borehole is complete.

[0013] ⑦ Finally, close the valve at the lower end of the drainage tube and clean up any accumulated water and mud below.

[0014] This invention discloses a method for reinforcing and sealing the borehole wall when a water inrush occurs during drilling operations. However, this method has the problem that removing the drill rod and drill bit from the borehole to be reinforced can easily damage the borehole wall, leading to an expansion of the water inrush and increasing the difficulty of handling the inrush. Summary of the Invention

[0015] To comprehensively address the aforementioned problems, especially the shortcomings of existing technologies, this utility model provides a device for monitoring and controlling water inrush at the bottom plate of an isolated working face, which can comprehensively solve the problem of water inrush.

[0016] To achieve the above objectives, the present invention employs the following technical means:

[0017] In a first aspect, this utility model provides a device for monitoring and controlling water inrush at the bottom plate of an isolated working face, including a drilling shaft. A transition module is provided at the front end of the drilling shaft, and a drilling module is provided at the front end of the transition module. The drilling module includes a front frame, in which a monitor is provided. The front frame is located at the very front of the device, and a micro motor is provided at the rear of the front frame. The output end of the micro motor is connected to a rotating shaft, and an inner drilling frame is provided at the rear of the rotating shaft. Two sets of drill bits are provided on the inner drilling frame, and a functional frame is installed at the rear of the inner drilling frame. When controlling water inrush, a drainage pipe module is connected to the rear of the functional frame.

[0018] Optionally, a grouting pipe is provided in the inner wall of the drilling shaft, a first shaft interface for connecting to an external drive module is provided at the rear of the drilling shaft, an L-shaped fixing frame is provided at the front end of the drilling shaft, and a second shaft interface is provided at the front end of the drilling shaft.

[0019] Optionally, the front end of the L-shaped fixing frame is provided with a first electromagnetic seat, the upper part of the first electromagnetic seat is provided with an inner groove, the inner groove is provided with a first spring, the bottom of the first spring is connected to the first electromagnetic seat, and the upper part is connected to a first retaining shaft.

[0020] Optionally, a grouting output pipe is provided in the inner wall of the transition module, a threaded connection seat is provided at the rear of the transition module, and a receiving slot is provided at the front of the transition module.

[0021] Optionally, the functional frame has a through-hole inside, a retaining ring is provided in the middle of the through-hole, and four sets of slots are provided on the outside of the functional frame, and the L-shaped fixing bracket can be inserted into the corresponding slot.

[0022] Optionally, the front end of the drainage pipe module is provided with a water inlet bracket, the front end of the water inlet bracket is provided with a retaining seat, and the rear end of the drainage pipe module is provided with a third axis interface for connecting with an external drainage module.

[0023] Optionally, a second electromagnetic seat is provided at the center of the card holder, and four sets of second springs are provided on the outside of the second electromagnetic seat, with a second card shaft installed at the front end of the second spring.

[0024] Optionally, the drilling module drills boreholes in the mining area of ​​an isolated working face coal mine to form boreholes.

[0025] Optionally, a sealing layer may be installed in the borehole when controlling water inrush.

[0026] Secondly, this utility model provides a method for using the monitoring and control device for water inrush at the bottom of an isolated working face in a soft coal seam as described in the first aspect, comprising the following steps:

[0027] S1. Assembly device: Install the transition module onto the front end of the drilling shaft, and then connect the drilling module to the L-shaped fixing bracket inside the front end of the drilling shaft through the functional frame.

[0028] S2. The drilling shaft is connected to the external drive module. The device starts drilling operations in the isolated working face coal mining area. When the monitor detects water inflow, the drilling shaft slows down and drills to the water inflow point, then stops drilling operations.

[0029] S3. Remove the external drive module, insert the drainage pipe module from inside the drilling shaft and move it to the front end. The first electromagnetic seat is energized and magnetized to separate the drilling module from the drilling shaft. At the same time, the second electromagnetic seat, which is always energized inside the card holder, is inserted into the through hole and then de-energized. The second card shaft is locked into the card ring to connect the drilling module and the drainage pipe module. Then continue to push the drainage pipe module forward to completely separate the drilling module from the drilling shaft.

[0030] S4. Next, grout is injected into the upper part of the transition module through the grouting pipe and grouting output pipe to form a leak-stopping layer;

[0031] S5. Completely remove the drill shaft and transition module from the borehole, then connect the drainage pipe module to the external drainage module to begin controlling the water inrush.

[0032] S6. After the water inrush is treated, pull the drainage pipe module outward, and at the same time start the micro motor to drive the inner drilling frame to drill through the leak-sealing layer. Finally, move the drainage pipe module out of the borehole.

[0033] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model uses the socketing and cooperation of the drilling shaft and the drainage pipe module to quickly carry out water inrush control operations without withdrawing the drilling shaft, eliminating the possibility of water inrush exacerbation during shaft withdrawal and improving work efficiency; the cooperation of two sets of electromagnetic seats and functional frames facilitates the combination and separation of the drilling shaft, drilling module and drainage pipe module, further improving efficiency; after the water inrush control is completed, the drainage pipe module can be quickly removed by conveniently breaking the leak-sealing layer through the inner drilling frame. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of the monitoring and control device for water inrush at the bottom plate of the isolated working face of this utility model;

[0035] Figure 2 This is the front view of the device for monitoring and controlling water inrush at the bottom plate of an isolated working face according to this utility model;

[0036] Figure 3 This is a cross-sectional view of the device for monitoring and controlling water inrush at the bottom plate of an isolated working face, which is based on this utility model.

[0037] Figure 4 This is a utility model Figure 3 Enlarged view of a portion of point A in the middle;

[0038] Figure 5 This is an assembly drawing of the water inrush monitoring and control device for the bottom plate of an isolated working face, which is a utility model.

[0039] Figure 6 This is a utility model Figure 5 Enlarged view of a section at point B in the middle;

[0040] Figure 7 This is a schematic diagram of the drainage pipe module and transition module of the monitoring and control device for water inrush at the bottom plate of an isolated working face.

[0041] Figure 8 This is an assembly drawing of the drainage pipe module of the monitoring and control device for water inrush on the bottom plate of an isolated working face.

[0042] Figure 9 This is a schematic diagram of the internal structure of the drainage pipe module of the monitoring and treatment device for water inrush at the bottom plate of an isolated working face.

[0043] Figure 10 This is a schematic diagram of the structure of the monitoring and control device for water inrush on the bottom plate of the isolated working face when the drainage pipe module is installed;

[0044] Figure 11 This is a schematic diagram of the structure of the monitoring and control device for water inrush at the bottom plate of the isolated working face during drilling.

[0045] Figure 12 This is a schematic diagram of the structure of the monitoring and control device for water inrush at the bottom plate of the isolated working face during grouting and plugging.

[0046] Figure 13 This is a schematic diagram of the structure of the water inrush monitoring and control device for the bottom plate of the isolated working face of this utility model during water inrush control.

[0047] In the diagram: 1 is the drilling shaft; 2 is the transition module; 3 is the drilling module; 4 is the drainage pipe module; 5 is the sealing layer; 6 is the mining area of ​​the isolated working face; 11 is the grouting pipe; 12 is the first shaft interface; 13 is the L-shaped fixing frame; 14 is the second shaft interface; 21 is the grouting output pipe; 22 is the threaded connection seat; 23 is the receiving slot; 31 is the front end frame; 32 is the micro motor; 33 is the rotating shaft; 34 is the internal drilling frame; 35 is the functional frame; 36 is the monitor; 41 is the water intake frame; 42 is the clamping seat; 43 is the third shaft interface; 61 is the drilling channel; 131 is the first electromagnetic seat; 132 is the inner groove; 133 is the first spring; 134 is the first clamping shaft; 341 is the drill bit; 351 is the through hole; 352 is the retaining ring; 353 is the slot opening; 421 is the second electromagnetic seat; 422 is the second spring; 423 is the second clamping shaft. Detailed Implementation

[0048] The present invention will be further described below with reference to the accompanying drawings. Example

[0049] like Figures 1 to 3 , Figure 5 and Figures 12 to 13 As shown in one embodiment of this utility model, a device for monitoring and controlling water inrush at the bottom plate of an isolated working face includes a drilling shaft 1. A transition module 2 is provided at the front end of the drilling shaft 1, and a drilling module 3 is provided at the front end of the transition module 2. The drilling module 3 includes a front frame 31, in which a monitor 36 is provided. The front frame 31 is located at the front end of the device. A micro motor 32 is provided at the rear of the front frame 31. The output end of the micro motor 32 is connected to a rotating shaft 33. An inner drilling frame 34 is provided at the rear of the rotating shaft 33. Two sets of drill bits 341 are provided on the inner drilling frame 34. A functional frame 35 is installed at the rear of the inner drilling frame 34. When controlling water inrush, a drainage pipe module 4 is connected to the rear of the functional frame 35.

[0050] Furthermore, the monitor 36 is a detector based on Rayleigh wave detection technology, which can conveniently monitor the water inflow at the borehole front.

[0051] A grouting pipe 11 is provided in the inner wall of the drilling shaft 1. A first shaft interface 12 connected to an external drive module is provided at the rear of the drilling shaft 1. An L-shaped fixing frame 13 is provided at the front end of the drilling shaft 1. A second shaft interface 14 is provided at the front end of the drilling shaft 1.

[0052] like Figures 3 to 5 As shown, the L-shaped fixing frame 13 has a first electromagnetic seat 131 inside its front end. The first electromagnetic seat 131 has an inner groove 132 on its upper part. The inner groove 132 has a first spring 133 inside it. The first spring 133 is connected to the first electromagnetic seat 131 at its bottom and to a first retaining shaft 134 at its upper part.

[0053] Furthermore, during assembly, the transition module 2 is connected to the second shaft interface 14 via the threaded connector 22, and after safety is completed, the grouting pipe 11 and the second shaft interface 14 are joined together. Then, the slot 353 of the rear functional frame 35 of the drilling module 3 is aligned with the L-shaped fixing frame 13, and the two sets of drill bits 341 on the inner drill frame 34 are inserted into the corresponding receiving slots 23. During assembly, the first electromagnetic seat 131 is energized and magnetized, and the first locking shaft 134 is attracted into the inner groove 132. When the L-shaped fixing frame 13 is inserted into the functional frame 35, the first electromagnetic seat 131 is de-energized and demagnetized, and the first locking shaft 134 is inserted into the functional frame 35 under the action of the first spring 133 to connect the drilling shaft 1 to the drilling module 3. Example

[0054] like Figures 7 to 8 As shown, in one embodiment of this utility model, a water inrush monitoring and control device for the bottom plate of an isolated working face, based on embodiment 1, has a grouting output pipe 21 provided in the inner wall of the transition module 2, a threaded connection seat 22 provided at the rear of the transition module 2, and a receiving slot 23 provided at the front of the transition module 2; a through channel 351 is provided inside the functional frame 35, a retaining ring 352 is provided in the middle of the through channel 351, and four sets of slots 353 are provided on the outside of the functional frame 35, and the L-shaped fixing bracket 13 can be inserted into the corresponding slots 353.

[0055] like Figures 9 to 13 As shown, the front end of the drainage pipe module 4 is provided with a water inlet bracket 41, the front end of the water inlet bracket 41 is provided with a card seat 42, and the rear end of the drainage pipe module 4 is provided with a third shaft interface 43 for connecting with an external drainage module.

[0056] A second electromagnetic base 421 is provided at the center of the card holder 42. Four sets of second springs 422 are provided on the outside of the second electromagnetic base 421. A second card shaft 423 is installed at the front end of the second spring 422.

[0057] The drilling module 3 drills boreholes 61 in the mining area 6 of the isolated working face coal mine.

[0058] When controlling water inrush, a sealing layer 5 is installed in the borehole 61.

[0059] Furthermore, the drainage pipe module 4 is inserted from inside the drilling shaft 1 and moved to the front end. The first electromagnetic seat 131 is energized and magnetized to separate the drilling module 3 from the drilling shaft 1. At the same time, the second electromagnetic seat 421, which is always energized inside the card holder 42, is inserted into the through hole 351 and then de-energized. The second card shaft 423 is inserted into the card ring 352 to connect the drilling module 3 and the drainage pipe module 4. Then, the drainage pipe module 4 is pushed forward to completely separate the drilling module 3 from the drilling shaft 1. Then, the first electromagnetic seat 131 is de-energized and demagnetized.

[0060] Specifically, the workers inject grout into the upper part of the transition module 2 through the grouting pipe 11 and the grouting output pipe 21. The grout quickly solidifies to form a leak-stopping layer 5. Then, the drilling shaft 1 and the transition module 2 are completely removed from the drilling channel 61. The drainage pipe module 4 is connected to the external drainage module to start the treatment of water inrush. The external drainage module is activated and the water inrush is pumped out and discharged through the water pumping bracket 41 at the front end of the drainage pipe module 4.

[0061] Furthermore, after the water inrush is treated, the drainage pipe module 4 is pulled outward, and at the same time the micro motor 32 is started. The micro motor 32 drives the rotating shaft 33 to rotate, and the rotating shaft 33 drives the inner drilling frame 34 to rotate, thereby driving the inner drilling frame 34 to drill through the sealing layer 5. Finally, the drainage pipe module 4 is moved out of the borehole 61.

[0062] Working principle:

[0063] Before using this utility model, the assembly device is first completed and then moved down into the well for operation. During assembly, the transition module 2 is connected together with the second shaft interface 14 through the threaded connection seat 22. After safety is completed, the grouting pipe 11 and the second shaft interface 14 are connected together. Then, the slot 353 of the rear functional frame 35 of the drilling module 3 is aligned with the L-shaped fixing frame 13, and the two sets of drill bits 341 on the inner drill frame 34 are inserted into the corresponding receiving slots 23. During assembly, the first electromagnetic seat 131 is energized and magnetized, and the first locking shaft 134 is attracted into the inner groove 132. When the L-shaped fixing frame 13 is inserted into the functional frame 35, the first electromagnetic seat 131 is de-energized and demagnetized. The first locking shaft 134 is inserted into the functional frame 35 under the action of the first spring 133 to connect the drilling shaft 1 to the drilling module 3.

[0064] Next, the drilling shaft 1 is connected to the external drive module through the first shaft interface 12. The device is started to drill in the mining area 6 of the isolated working face coal mine to form a borehole 61. When the monitor 36 detects water inflow, the drilling shaft 1 slows down and drills to the water inflow point, and stops drilling.

[0065] At this point, the external drive module is removed, and the drainage pipe module 4 is inserted from inside the drilling shaft 1 and moved to the front end. The first electromagnetic seat 131 is energized and magnetized to separate the drilling module 3 from the drilling shaft 1. At the same time, the second electromagnetic seat 421, which is always energized inside the card holder 42, is inserted into the through hole 351 and then de-energized. The second card shaft 423 is inserted into the card ring 352 to connect the drilling module 3 and the drainage pipe module 4. Then, the drainage pipe module 4 is pushed forward to completely separate the drilling module 3 from the drilling shaft 1. Then, the first electromagnetic seat 131 is de-energized and demagnetized.

[0066] The workers then injected grout into the upper part of the transition module 2 through the grouting pipe 11 and the grouting output pipe 21. The grout quickly solidified to form the leak-stopping layer 5. Then, the drilling shaft 1 and the transition module 2 were completely removed from the drilling channel 61. The drainage pipe module 4 was connected to the external drainage module to start the treatment of water inrush. The external drainage module was activated and the water inrush was pumped out and discharged through the water pumping port frame 41 at the front end of the drainage pipe module 4.

[0067] After the water inrush is controlled, the drainage pipe module 4 is pulled outward. At the same time, the micro motor 32 is started. The micro motor 32 drives the rotating shaft 33 to rotate, and the rotating shaft 33 drives the inner drilling frame 34 to rotate, thereby driving the inner drilling frame 34 to drill through the sealing layer 5. Finally, the drainage pipe module 4 is moved out of the borehole 61. Example

[0068] This embodiment provides a method for using the monitoring and control device for water inrush in the floor of an isolated working face in a soft coal seam as described in Embodiment 1 or Embodiment 2. The steps are as follows:

[0069] S1. Assembly device: Install the transition module 2 onto the front end of the drilling shaft 1, and then connect the drilling module 3 to the L-shaped fixing bracket 13 at the front end of the drilling shaft 1 through the functional frame 35.

[0070] S2. Drill shaft 1 is connected to an external drive module. The device starts drilling in the mining area 6 of the isolated working face coal mine. When the monitor 36 detects water inflow, the drill shaft 1 slows down and drills to the water inflow point, then stops drilling.

[0071] S3. Remove the external drive module, insert the drainage pipe module 4 from the inside of the drilling shaft 1 and move it to the front end. The first electromagnetic seat 131 is energized and magnetized to separate the drilling module 3 from the drilling shaft 1. At the same time, the second electromagnetic seat 421, which is always energized inside the card seat 42, is inserted into the through hole 351 and then de-energized. The second card shaft 423 is inserted into the card ring 352 to connect the drilling module 3 and the drainage pipe module 4. Then continue to push the drainage pipe module 4 forward to completely separate the drilling module 3 from the drilling shaft 1.

[0072] S4. Next, grouting is performed on the upper part of the transition module 2 through grouting pipe 11 and grouting output pipe 21 to form a leak-stopping layer 5.

[0073] S5. Completely remove the drilling shaft 1 and transition module 2 from the drilling channel 61, and then connect the drainage pipe module 4 to the external drainage module to start the treatment of water inrush.

[0074] S6. After the water inrush is treated, pull the drainage pipe module 4 outward. At the same time, the micro motor 32 starts, thereby driving the inner drilling frame 34 to drill through the sealing layer 5. Finally, the drainage pipe module 4 is moved out of the drilling channel 61.

Claims

1. An island working face floor water gushing monitoring and treatment device, comprising a drilling shaft (1), characterized in that: The front end of the drilling shaft (1) is provided with a transition module (2), the front end of the transition module (2) is provided with a drilling module (3), the drilling module (3) comprises a front end frame (31), the front end frame (31) is arranged at the front end of the device, a monitor (36) is arranged in the front end frame (31), a micro motor (32) is arranged at the rear part of the front end frame (31), a rotating shaft (33) is connected to the output end of the micro motor (32), an inner drill frame (34) is arranged at the rear part of the rotating shaft (33), two groups of drill bits (341) are arranged on the inner drill frame (34), and a function frame (35) is arranged at the rear part of the inner drill frame (34). When the water gushing is treated, the function frame (35) is connected with a drainage pipeline module (4) at the rear part.

2. The device for monitoring and treating water inrush from floor of an island working face according to claim 1, characterized in that: The inner wall of the drilling shaft (1) is provided with a grouting pipeline (11), the rear part of the drilling shaft (1) is provided with a first shaft interface (12) connected with an external driving module, the front end of the drilling shaft (1) is provided with an L-shaped fixing frame (13), and the front end of the drilling shaft (1) is provided with a second shaft interface (14).

3. The device for monitoring and treating water inrush from floor of island working face according to claim 2, characterized in that: The front end of the L-shaped fixing frame (13) is internally provided with a first electromagnetic seat (131), the upper part of the first electromagnetic seat (131) is provided with an inner groove (132), the inner groove (132) is internally provided with a first spring (133), the first spring (133) is connected with the first electromagnetic seat (131) at the bottom and connected with a first clamping shaft (134) at the upper part.

4. The device for monitoring and treating water inrush from floor of island working face according to claim 3, characterized in that, The inner wall of the transition module (2) is provided with a grouting output pipe (21), the rear part of the transition module (2) is provided with a threaded connection seat (22), and the front part of the transition module (2) is provided with a receiving hole groove (23).

5. The device for monitoring and treating water inrush from floor of island working face according to claim 4, characterized in that, The inside of the function frame (35) is provided with a through hole (351), the middle position of the through hole (351) is provided with a clamping ring (352), the outside of the function frame (35) is provided with four groups of slot openings (353), and the L-shaped fixing frame (13) can be inserted into the corresponding slot opening (353).

6. The device for monitoring and treating water inrush from floor of island working face according to claim 5, characterized in that, The front end of the drainage pipeline module (4) is provided with a water suction port frame (41), the front end of the water suction port frame (41) is provided with a clamping seat (42), and the rear part of the drainage pipeline module (4) is provided with a third shaft interface (43) connected with an external drainage module.

7. The device according to claim 6, characterized in that, The inside of the clamping seat (42) is provided with a second electromagnetic seat (421) at the central position, the outer side of the second electromagnetic seat (421) is provided with four groups of second springs (422), and the front end of the second spring (422) is provided with a second clamping shaft (423).

8. The device according to claim 7, characterized in that, The drilling module (3) forms a drilling channel (61) in the island working face coal mining area (6).

9. The device for monitoring and treating water inrush from floor of island working face according to claim 8, characterized in that, When the water gushing is treated, the drilling channel (61) is provided with a plugging layer (5).

Citation Information

Patent Citations

  • Drill casing water outlet reinforcement device and method

    CN113622429B

  • Mine roadway water burst control device and construction and installation method thereof

    CN115573681A