Island working face bottom plate water gushing monitoring and treatment device and using method thereof

Abstract

The invention provides an island working face bottom plate water gushing monitoring and treatment device and a using method thereof, and belongs to the technical field of coal mining, the device 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, the drilling module 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.

Description

Technical Field

[0001] The present invention belongs to the technical field of coal mine mining, and particularly relates to a water inrush monitoring and control device for the floor of an isolated working face and a method for using the same. Background Art

[0002] In the early days, most mines adopted strip mining and skip mining, resulting in various forms of isolated working faces in these mines. With the progress of technology and the development of fully mechanized mining equipment, the fully mechanized top coal caving mining technology is adopted in mines to recover the coal pillars in the mining area roadway, improving the resource recovery rate of the mine and achieving remarkable economic benefits. However, the surrounding of the coal pillar working face is all goaf. Affected by factors such as high floor confined water pressure and developed structures, it is easy to cause water inrush from the working face floor, seriously restricting the safe production of the mine.

[0003] A Chinese invention patent with the publication number of CN115573681A, published on January 6, 2023, discloses a mine roadway water inrush control device and its construction and installation method, which relates to the technical field of mine roadway grouting construction. It includes an orifice tube and a grouting mechanism. The orifice tube is a cylindrical hollow structure. An anti-slag protection tube is sleeved outside the orifice tube. A grouting pipe body is arranged between the anti-slag protection tube and the orifice tube. One end of the grouting pipe body extends to the top between the anti-slag protection tube and the orifice tube. A detachable gate valve is arranged between the orifice tube and the grouting mechanism. One end of the orifice tube close to the gate valve is a flange part. One end of the gate valve is fixedly connected to the flange part, and one end of the gate valve is detachably connected to the grouting mechanism. The anti-slag protection tube isolates and blocks the broken rocks during the operation, preventing them from flowing back into the interior of the orifice tube and blocking the borehole. The groundwater emerging inside the orifice tube is controlled by the gate valve at the top of the orifice tube to prevent the groundwater from gushing out into the mine roadway.

[0004] When using the method of this invention, it is necessary to drill positioning holes downward on the working face, then embed the anti-slag protection tube and the orifice tube, and finally grout for plugging. Of course, before embedding, it is necessary to first pull out the drill rod / drill bit in the positioning hole. If the floor at the drilling site is a fractured floor where water inrush has already occurred, during the process of drilling the positioning hole and pulling out the drill rod / drill bit, it is easy to damage the borehole wall, expand the water inrush, and increase the difficulty of water inrush treatment.

[0005] The Chinese invention patent with the authorization announcement date of April 25, 2025 and the announcement number CN113622429B discloses a drilling casing water outlet reinforcement device and method. To overcome the defects of the prior art, the drilling casing water outlet reinforcement device of the present invention includes a grouting pipe, and a plurality of grouting holes are opened on the side wall of the middle section of the grouting pipe. It is characterized in that: a drainage pipe is also inserted inside the grouting pipe, and the upper and lower ports of the grouting are respectively closed with a conical or circular sealing plate between the drainage pipe, two outer convex rings are fixedly connected to the upper part of the grouting pipe, an expandable sealing sleeve is arranged between the two outer convex rings, the axis of the grouting pipe and the axis of the drainage pipe coincide, and both are divided into multiple sections, and the adjacent upper and lower sections are respectively connected by a sealing pipe thread.

[0006] The disclosed drilling water outlet reinforcement method of the invention includes the following steps: ①. Take out the drill rod and drill bit in the drilling hole to be reinforced with water inrush. ②. Take the top section grouting pipe and drainage pipe and the bottom section grouting pipe and drainage pipe, and according to the total length of the drill rod when water inrush occurs in the drilling hole, select an appropriate number of middle section grouting pipes and middle section drainage pipes, and select an appropriate number of matching sealing rubber sleeves as described in claim 4. By controlling the number of middle section drainage pipes and middle section grouting pipes, the lengths of the grouting pipe and the drainage pipe are roughly adjusted, and the redundant grouting holes above the grouting pipe are blocked with an appropriate number of sealing rubber sleeves, so that 24.2m ≤ the length of the grouting pipe ≤ the length that the drilling hole to be reinforced extends into the water-resisting layer on the roof. ③. Then, first insert the top section grouting pipe and the top section drainage pipe from bottom to top into the drilling hole to be reinforced. When their lower ends are about to be inserted into the drilling hole to be reinforced, respectively screw on the upper and lower middle section grouting pipes and drainage pipes, and then insert them upward from bottom to top. When their lower ends are about to be inserted into the drilling hole to be reinforced, respectively screw on the upper and lower middle section grouting pipes and drainage pipes again, and so on until all the selected middle section drainage pipes and middle section grouting pipes are screwed on. ④. Take all the selected matching sealing rubber sleeves in step ② and put them on the bottom section grouting pipe in turn, so that the sealing rubber sleeve and all the matching sealing rubber sleeves are tightly squeezed together. Then, and ensure that the valve at the lower end of the drainage pipe is in the open state, align the bottom section drainage pipe and the bottom section grouting pipe with the lowermost ends of the middle section drainage pipe and the middle section grouting pipe in step ③ respectively to complete the screwing connection of the entire grouting pipe and drainage pipe. ⑤. Insert the bottom section grouting pipe upward into the drilling hole to be reinforced, and make the sealing rubber sleeve or the matching sealing rubber sleeve closely fit with the inner wall of the lower port of the drilling hole to be reinforced. ⑥. Connect the slurry inlet pipe to the outlet pipe of the matching grouting machine, and turn on the grouting machine to inject the reinforcing slurry into the grouting pipe. The above-mentioned reinforcing slurry is squeezed into the gap between the hole wall of the grouting pipe and the rock mass fissures in the water-resisting layer of the roof of the borehole to be reinforced through the grouting holes, forcing the expandable sealing sleeve to tightly adhere to the hole wall at the uppermost end of the water-resisting layer of the borehole to be reinforced, preventing the water in the aquifer from entering the water-resisting layer borehole, and maintaining pressure until the reinforcing slurry solidifies, and the borehole to be reinforced is completed, ⑦. Finally, close the valve at the lower end of the drainage pipe and clean the accumulated water and mud below.

[0007] The invention discloses a method for reinforcing and sealing the borehole wall when water inrush occurs during drilling operations. This method also has the problem that during the process of removing the drill pipe and drill bit in the borehole to be reinforced, it is easy to damage the borehole wall, resulting in the expansion of water inrush and an increase in the difficulty of water inrush treatment. Summary of the Invention

[0008] To comprehensively solve the above problems, especially for the deficiencies of the prior art, the present invention provides an island working face floor water inrush monitoring and control device and its usage method, which can comprehensively solve the problem of water inrush.

[0009] To achieve the above object, the present invention adopts the following technical means: In the first aspect, the present invention provides an island working face floor water inrush monitoring and control device, 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, a monitor is provided in the front frame, the front frame is provided at the frontmost end of the device, 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, an inner drilling frame is provided at the rear of the rotating shaft, two groups of drill cutters 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.

[0010] Optionally, a grouting pipeline is provided in the inner wall of the drilling shaft, a first shaft interface connected 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 inside the drilling shaft, and a second shaft interface is provided at the front end of the drilling shaft.

[0011] Optionally, a first electromagnetic seat is provided inside the front end of the L-shaped fixing frame, an inner groove is provided above the first electromagnetic seat, a first spring is provided inside the inner groove, the bottom of the first spring is connected to the first electromagnetic seat, and the upper part is connected to a first clamping shaft.

[0012] 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 hole groove is provided at the front of the transition module.

[0013] Optionally, a through-hole is provided inside the functional frame. A snap ring is provided at the middle position of the through-hole. Four sets of slot openings are provided outside the functional frame, and the L-shaped fixing frame can be inserted into the corresponding slot openings.

[0014] Optionally, a pumping port frame is provided at the front end of the drainage pipe module. A clamping seat is provided at the front end of the pumping port frame. A third shaft interface for connecting with an external drainage module is provided at the rear of the drainage pipe module.

[0015] Optionally, a second electromagnetic seat is provided at the central position inside the clamping seat. Four sets of second springs are provided outside the second electromagnetic seat. Second clamping shafts are installed at the front ends of the second springs.

[0016] Optionally, the drilling module drills a drilling passage in the coal mining area of the isolated island working face.

[0017] Optionally, when controlling water inrush, a plugging layer is provided in the drilling passage.

[0018] In a second aspect, the present invention provides a method for using the device for monitoring and controlling floor water inrush in a soft coal seam isolated island working face described in the first aspect, including the following steps: S1. Assemble the device. Install the transition module at the front end of the drilling shaft. Then connect the drilling module to the L-shaped fixing frame at the inner front end of the drilling shaft through the functional frame. S2. Connect the drilling shaft to an external driving module. Start the device to perform drilling operations in the coal mining area of the isolated island working face. When the monitor detects water inrush, the drilling shaft reduces its speed and drills to the water inrush location, and then stops the drilling operation. S3. Remove the external driving module. Insert the drainage pipe module from the inside of the drilling shaft to the outermost front end. The first electromagnetic seat is energized to generate magnetism to separate the drilling module from the drilling shaft. At the same time, the second electromagnetic seat that is always energized inside the clamping seat is inserted into the through-hole and then de-energized to demagnetize. The second clamping shaft is clamped into the snap 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. S4. Then, inject slurry through the slurry injection pipe and the slurry output pipe to form a plugging layer above the transition module. S5. Completely remove the drilling shaft and the transition module from the drilling passage. Then connect the drainage pipe module to the external drainage module to start controlling water inrush. S6. After the water inrush control is completed, pull the rear drainage pipe module outwards, and at the same time start the micro motor to drive the inner drill frame to break through the plugging layer. Finally, remove the drainage pipe module from the drilling passage.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: By using the socket connection between the drilling shaft and the drainage pipe module, the operation of quickly controlling water inrush can be carried out without withdrawing the drilling shaft, eliminating the possibility of the water inrush situation worsening during the shaft withdrawal process and improving the operation efficiency; Through the combined use of two groups of electromagnetic seats and the functional frame, the combination and separation between the drilling shaft, the drilling module and the drainage pipe module are facilitated, further improving the efficiency; After the water inrush control is completed, the inner drill frame is used to conveniently break the plugging layer, thereby achieving the effect of quickly removing the drainage pipe module. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the device for monitoring and controlling floor water inrush in the isolated island working face of the present invention; Figure 2 is a front view of the device for monitoring and controlling floor water inrush in the isolated island working face of the present invention; Figure 3 is a sectional view of the device for monitoring and controlling floor water inrush in the isolated island working face of the present invention; Figure 4 is the present invention Figure 3 partial enlarged view at A in; Figure 5 is an assembly diagram of the device for monitoring and controlling floor water inrush in the isolated island working face of the present invention; Figure 6 is the present invention Figure 5 partial enlarged view at B in; Figure 7 is a schematic structural diagram of the drainage pipe module and the transition module of the device for monitoring and controlling floor water inrush in the isolated island working face of the present invention; Figure 8 is an assembly diagram of the drainage pipe module of the device for monitoring and controlling floor water inrush in the isolated island working face of the present invention; Figure 9 is a schematic internal structure diagram of the drainage pipe module of the device for monitoring and controlling floor water inrush in the isolated island working face of the present invention; Figure 10 is a schematic structural diagram of the device for monitoring and controlling floor water inrush in the isolated island working face of the present invention when the drainage pipe module is installed; Figure 11 is a schematic structural diagram of the device for monitoring and controlling floor water inrush in the isolated island working face of the present invention during drilling; Figure 12 is a schematic structural diagram of the device for monitoring and controlling floor water inrush in the isolated island working face of the present invention during grouting and plugging; Figure 13 is a schematic structural diagram of the device for monitoring and controlling floor water inrush in the isolated island working face of the present invention during water inrush control.

[0021] In the figure: 1 is the drilling shaft; 2 is the transition module; 3 is the drilling module; 4 is the drainage pipeline module; 5 is the leak stoppage layer; 6 is the coal mining area of the isolated island working face; 11 is the grouting pipeline; 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 storage hole groove; 31 is the front end frame; 32 is the micro motor; 33 is the rotating shaft; 34 is the inner drilling frame; 35 is the functional frame; 36 is the monitor; 41 is the water pumping port 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 channel; 352 is the snap 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 mode

[0022] The present invention will be further described below with reference to the accompanying drawings. Embodiment 1

[0023] As Figures 1 to 3 、 Figure 5 And Figures 12 to 13 shown, in an embodiment of the present invention, a device for monitoring and controlling water inrush from the floor of an isolated island working face includes a drilling shaft 1, a transition module 2 is provided at the front end of the drilling shaft 1, a drilling module 3 is provided at the front end of the transition module 2, the drilling module 3 includes a front end frame 31, a monitor 36 is provided in the front end frame 31, the front end frame 31 is provided at the frontmost end of the device, a micro motor 32 is provided at the rear of the front end frame 31, an 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 groups 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, and when controlling water inrush, the functional frame 35 is connected to a drainage pipeline module 4 at the rear.

[0024] Furthermore, the monitor 36 is a detector based on Rayleigh wave detection technology, which can conveniently monitor the water inrush situation at the front end of the drilling.

[0025] A grouting pipeline 11 is provided in the inner wall of the drilling shaft 1, a first shaft interface 12 connected to an external driving module is provided at the rear of the drilling shaft 1, an L-shaped fixing frame 13 is provided at the front end inside the drilling shaft 1, and a second shaft interface 14 is provided at the front end of the drilling shaft 1.

[0026] As Figures 3 to 5 shown, a first electromagnetic seat 131 is provided inside the front end of the L-shaped fixing frame 13, an inner groove 132 is provided above the first electromagnetic seat 131, a first spring 133 is provided inside the inner groove 132, the bottom of the first spring 133 is connected to the first electromagnetic seat 131, and the upper part is connected to a first clamping shaft 134.

[0027] Further, during assembly, the transition module 2 is connected to the second shaft interface 14 through the threaded connection seat 22. After the connection is completed, the grouting pipeline 11 is docked with the second shaft interface 14. Then, the slot opening 353 of the rear functional frame 35 of the drilling module 3 is aligned with the L-shaped fixing frame 13, and the two groups of drill cutters 341 on the inner drill frame 34 are inserted into the corresponding storage hole slots 23. During assembly, the first electromagnetic seat 131 is energized to generate magnetism, and the first clamping shaft 134 is adsorbed 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 to demagnetize, and the first clamping 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. Embodiment 2

[0028] As Figures 7 to 8 shown, in an embodiment of the present invention, for an island working face floor water inrush monitoring and control device, on the basis of Embodiment 1, a grouting output pipe 21 is provided in the inner wall of the transition module 2, a threaded connection seat 22 is provided at the rear of the transition module 2, and a storage hole slot 23 is provided at the front of the transition module 2; a through hole 351 is provided inside the functional frame 35, a snap ring 352 is provided at the middle position of the through hole 351, and four groups of slot openings 353 are provided outside the functional frame 35, and the L-shaped fixing frame 13 can be inserted into the corresponding slot openings 353.

[0029] As Figures 9 to 13 shown, a pumping port frame 41 is provided at the front end of the drainage pipeline module 4, a clamping seat 42 is provided at the front end of the pumping port frame 41, and a third shaft interface 43 for connecting with an external drainage module is provided at the rear of the drainage pipeline module 4.

[0030] A second electromagnetic seat 421 is provided at the central position inside the clamping seat 42, four groups of second springs 422 are provided outside the second electromagnetic seat 421, and a second clamping shaft 423 is installed at the front ends of the second springs 422.

[0031] The drilling module 3 drills a drilling passage 61 in the coal mining area 6 of the island working face.

[0032] When controlling water inrush, a plugging layer 5 is provided in the drilling passage 61.

[0033] Further, the drainage pipe module 4 is inserted from inside the drilling shaft 1 to the forefront. The first electromagnetic seat 131 is energized to generate magnetism to separate the drilling module 3 from the drilling shaft 1. At the same time, the second electromagnetic seat 421 that has been continuously energized inside the card seat 42 is inserted into the through-hole 351 and then de-energized to demagnetize. The second card shaft 423 is snapped into the snap ring 352 to connect the drilling module 3 and the drainage pipe module 4. Then, the drainage pipe module 4 is pushed forward continuously to completely separate the drilling module 3 from the drilling shaft 1. Then, the first electromagnetic seat 131 is de-energized to demagnetize.

[0034] Specifically, the operator grouts above the transition module 2 through the grouting pipe 11 and the grouting output pipe 21. The slurry quickly solidifies to form a leak stoppage 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, and the water inrush treatment is started. The external drainage module is started, and the water inrush is pumped out and drained through the water pumping port frame 41 at the front end of the drainage pipe module 4.

[0035] Further, after the water inrush treatment is completed, the rear drainage pipe module 4 is pulled outwards. At the same time, the micro motor 32 is started. The micro motor 32 drives the rotating shaft 33 to rotate. The rotating shaft 33 drives the inner drill frame 34 to rotate, so as to drive the inner drill frame 34 to break through the leak stoppage layer 5. Finally, the drainage pipe module 4 is removed from the drilling channel 61.

[0036] Working principle: Before the present invention is used, the assembled device is first moved to the underground for operation. During assembly, the transition module 2 is connected together through the threaded connection seat 22 and the second shaft interface 14. After the assembly is completed, the grouting pipe 11 and the second shaft interface 14 are docked together. Then, the slot opening 353 of the rear functional frame 35 of the drilling module 3 is aligned with the L-shaped fixing frame 13, and the two groups of drill cutters 341 on the inner drill frame 34 are inserted into the corresponding receiving hole grooves 23. During assembly, the first electromagnetic seat 131 is energized to generate magnetism, and the first card shaft 134 is adsorbed into the inner groove 132. After the L-shaped fixing frame 13 is inserted into the functional frame 35, the first electromagnetic seat 131 is de-energized to demagnetize, and the first card shaft 134 is inserted into the functional frame 35 under the action of the first spring 133 to connect the drilling shaft 1 and the drilling module 3.

[0037] Then, the drilling shaft 1 is connected to the external drive module through the first shaft interface 12. The device is started to drill a drilling channel 61 in the coal mining area 6 of the isolated island working face. When the monitor 36 detects the water inrush situation, the drilling shaft 1 reduces the drilling speed to the water inrush location and stops the drilling operation.

[0038] At this time, the external drive module is removed, and the drainage pipe module 4 is inserted from the inside of the drilling shaft 1 to the forefront. The first electromagnetic seat 131 is energized to generate magnetism to separate the drilling module 3 from the drilling shaft 1. At the same time, the second electromagnetic seat 421 that has been energized inside the clamping seat 42 is inserted into the through-hole 351 and then de-energized to demagnetize. The second clamping shaft 423 is clamped into the clamping ring 352 to connect the drilling module 3 and the drainage pipe module 4. Then, the drainage pipe module 4 is pushed forward continuously to completely separate the drilling module 3 from the drilling shaft 1. Then, the first electromagnetic seat 131 is de-energized to demagnetize.

[0039] Then, the operator grouts above the transition module 2 through the grouting pipe 11 and the grouting output pipe 21. The grout quickly solidifies to form a leakage-blocking layer 5. Then, the drilling shaft 1 and the transition module 2 are completely removed from the drilling passage 61. The drainage pipe module 4 is connected to the external drainage module, and the water inrush treatment begins. The external drainage module is started, and the water inrush is pumped out and drained through the water pumping port bracket 41 at the front end of the drainage pipe module 4.

[0040] After the water inrush treatment is completed, the rear drainage pipe module 4 is pulled outwards. At the same time, the micro motor 32 is started. The micro motor 32 drives the rotating shaft 33 to rotate. The rotating shaft 33 drives the inner drill frame 34 to rotate, thereby driving the inner drill frame 34 to break through the leakage-blocking layer 5. Finally, the drainage pipe module 4 is removed from the drilling passage 61. Embodiment 3

[0041] This embodiment provides a method for using the water inrush monitoring and treatment device for the isolated island working face floor in soft coal seams described in Embodiment 1 or Embodiment 2. The steps are as follows: S1. Assemble the device. Install the transition module 2 at the front end of the drilling shaft 1. Then, connect the drilling module 3 to the L-shaped fixing frame 13 at the front end inside the drilling shaft 1 through the function frame 35. S2. Connect the drilling shaft 1 to the external drive module. Start the device to drill in the coal mining area 6 of the isolated island working face. When the monitor 36 detects the water inrush situation, the drilling shaft 1 reduces the drilling speed to the water inrush location and stops the drilling operation. S3. Remove the external drive module. Insert the drainage pipe module 4 from the inside of the drilling shaft 1 to the forefront. The first electromagnetic seat 131 is energized to generate magnetism to separate the drilling module 3 from the drilling shaft 1. At the same time, the second electromagnetic seat 421 that has been energized inside the clamping seat 42 is inserted into the through-hole 351 and then de-energized to demagnetize. The second clamping shaft 423 is clamped into the clamping 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. S4. Then, grout above the transition module 2 through the grouting pipe 11 and the grouting output pipe 21 to form a leakage-blocking layer 5. S5. Completely remove the drilling shaft 1 and the transition module 2 from the drilling passage 61. Then, connect the drainage pipe module 4 to the external drainage module and start treating the water inrush. After the water inrush treatment is completed, pull the rear drainage pipe module 4 outwards, and at the same time start the micro motor 32 to drive the inner drill rig 34 to break through the plugging layer 5, and finally move the drainage pipe module 4 out of the drilling channel 61.

Claims

1. An island working face floor water inrush monitoring and control device, including a drilling shaft (1), characterized in that: 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-end frame (31) which is arranged at the very 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 of the front-end frame (31). The output end of the micro motor (32) is connected to a rotating shaft (33). An inner drilling frame (34) is arranged at the rear of the rotating shaft (33). Two groups of drill cutters (341) are arranged on the inner drilling frame (34). A functional frame (35) is installed at the rear of the inner drilling frame (34). When dealing with water inrush, a drainage pipeline module (4) is connected to the rear of the functional frame (35).

2. The water inrush monitoring and control device for the floor of the isolated island working face according to claim 1, wherein: A grouting pipeline (11) is arranged in the inner wall of the drilling shaft (1). A first shaft interface (12) connected to an external drive module is arranged at the rear of the drilling shaft (1). An L-shaped fixing frame (13) is arranged at the front end inside the drilling shaft (1). A second shaft interface (14) is arranged at the front end of the drilling shaft (1).

3. The water inrush monitoring and control device for the floor of the isolated island working face according to claim 2, characterized in that: A first electromagnetic seat (131) is arranged inside the front end of the L-shaped fixing frame (13). An inner groove (132) is arranged above the first electromagnetic seat (131). A first spring (133) is arranged inside the inner groove (132). The bottom of the first spring (133) is connected to the first electromagnetic seat (131), and the upper part is connected to a first clamping shaft (134).

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

5. The water inrush monitoring and control device for the floor of the isolated island working face according to claim 4, characterized in that, A through hole (351) is arranged inside the functional frame (35). A clamping ring (352) is arranged at the middle position of the through hole (351). Four groups of slot openings (353) are arranged outside the functional frame (35). The L-shaped fixing frame (13) can be inserted into the corresponding slot openings (353).

6. The water inrush monitoring and control device for the floor of the isolated island working face according to claim 5, characterized in that, A water pumping port frame (41) is arranged at the front end of the drainage pipeline module (4). A clamping seat (42) is arranged at the front end of the water pumping port frame (41). A third shaft interface (43) connected to an external drainage module is arranged at the rear of the drainage pipeline module (4).

7. The water inrush monitoring and control device for the floor of the isolated island working face according to claim 6, characterized in that, A second electromagnetic seat (421) is arranged at the central position inside the clamping seat (42). Four groups of second springs (422) are arranged outside the second electromagnetic seat (421). A second clamping shaft (423) is installed at the front end of the second springs (422).

8. The water inrush monitoring and control device for the floor of the isolated island working face according to claim 7, characterized in that, The drilling module (3) drills a drilling channel (61) in the coal mining area (6) of the isolated working face.

9. The water inrush monitoring and control device for the floor of the isolated island working face according to claim 8, wherein, When dealing with water inrush, a plugging layer (5) is arranged in the drilling channel (61).

10. A method for using the device for monitoring and controlling water inrush from the floor of an isolated working face described in claim 9, characterized in that, It includes the following steps: S1. Assemble the device. Install the transition module (2) at the front end of the drilling shaft (1), and then connect the drilling module (3) to the L-shaped fixing frame (13) at the front end inside the drilling shaft (1) through the functional frame (35). S2. The drilling shaft (1) is connected to an external drive module. When the device starts drilling operations in the coal mining area (6) of the isolated working face, and the monitor (36) detects water inrush, the drilling shaft (1) reduces its speed and drills to the water inrush point, then stops the drilling operation. S3. Remove the external drive module, insert the drainage pipeline module (4) from the inside of the drilling shaft (1) to the forefront. The first electromagnetic seat (131) is energized to generate magnetism to separate the drilling module (3) from the drilling shaft (1). At the same time, the second electromagnetic seat (421) that is continuously energized inside the clamping seat (42) is inserted into the through-hole (351) and then de-energized to demagnetize. The second clamping shaft (423) is clamped into the clamping ring (352) to connect the drilling module (3) and the drainage pipeline module (4). Then continue to push the drainage pipeline module (4) forward to completely separate the drilling module (3) from the drilling shaft (1). S4. Then, through the grouting pipeline (11) and the grouting output pipe (21), grout is injected above the transition module (2) to form a plugging layer (5). S5. Completely remove the drilling shaft (1) and the transition module (2) from the drilling channel (61). Then the drainage pipeline module (4) is connected to an external drainage module to start treating water inrush. S6. After the water inrush treatment is completed, pull the rear drainage pipeline module (4) outwards, and at the same time, start the micro-motor (32) to drive the inner drill frame (34) to break through the plugging layer (5). Finally, remove the drainage pipeline module (4) from the drilling channel (61).

Images