Detection assembly for mine goaf ponding area

Abstract

The invention discloses a detection assembly for a mine goaf ponding area, a detection device is lowered to a coal roadway mined at the lower part in a goaf through multiple groups of gear connecting assemblies, the overall structure is convenient, the water pressure in the coal roadway is effectively detected through a water pressure monitor, and danger is judged according to the water pressure; the phenomenon of water permeation caused by the fact that a coal roadway mined below the inside of the goaf cannot bear stress is prevented, and meanwhile when harm exists, precautionary measures are taken in time; the monitoring range of the ponding area is enlarged, the specific water level condition inside the ponding area is easy to observe, and the device is suitable for industrial large-scale application and popularization.

Description

Technical Field

[0001] This invention belongs to the field of water accumulation area detection, specifically relating to a detection component for water accumulation areas in mine goafs. Background Technology

[0002] Because of the need to extract and transport underground coal resources during the mining process, a method similar to road tunneling is generally used to gradually open up the tunnels between the underground coal location and the mine shaft. The ore and coal encountered during the mining process are usually transported to the surface to form a reasonable transportation and mining face. As coal and other ores are continuously transported out, such coal goaf areas are formed, and these goaf areas are prone to water accumulation.

[0003] Existing detection devices for goaf water accumulation areas are usually installed above the water accumulation area to observe the water level flow. They only serve as a warning and monitoring function and cannot solve the existing hidden dangers. Since goaf areas are also the main cause of water accumulation areas, and the goaf area is large, the monitoring range of the water accumulation area is limited, and it is difficult to observe the specific water level inside. Summary of the Invention

[0004] The purpose of this invention is to provide a detection component for water accumulation areas in mine goafs, so as to solve the problems of limited monitoring range and difficulty in observing the specific water level in existing technologies.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A detection component for a waterlogged area in a mine goaf, characterized in that it includes a vertical rectangular through hole disposed on the upper surface of the roadway in the waterlogged area of ​​the mine goaf. A pair of fixing plates are respectively installed on the upper surface of the tunnel near the two opposite sides of the through hole; each pair of fixing plates is provided with a pulley on the side closest to each other, and the central axes of the two pulleys are collinear; Each pair of fixed plates has a support plate on one side, and a rotating shaft is provided on the support plate. Both ends of the rotating shaft are fixedly fitted with winches. A connecting rope is wound on each winch. The four connecting ropes pass around their corresponding pulleys and then enter the tunnel of the mine goaf water accumulation area from the four corners of the through hole. The bottom ends of the four connecting ropes are connected to the four corners of a counterweight plate. The counterweight plate is equipped with a water pumping device, and the outlet end of the water pumping device extends from the through hole to the upper surface of the roadway. The pumping device is also equipped with a water pressure monitor.

[0006] The present invention also has the following features: Furthermore, the pumping device includes a protective box, on which multiple through-holes are provided; The pumping device also includes a pump installed on the upper surface of the roadway in the goaf water accumulation area of ​​the mine, and the pumping pipe of the pump enters the protective box through the through hole.

[0007] Furthermore, mounting plates are provided on both sides of the inner wall of the through hole; The mounting plate has clearance holes at the four corners near the through holes, allowing the connecting rope to pass through. A protective plate is fitted between the two mounting plates, and the protective plate has multiple vertical water inlet holes.

[0008] Furthermore, the mounting plate has a mounting slot at its lower part, and both ends of the protective plate respectively enter the mounting slots of the corresponding mounting plate.

[0009] Furthermore, a pressure plate is connected to the upper part of the mounting plate via a telescopic rod; When the protective plate enters the mounting slot of the corresponding mounting plate, the telescopic rod can drive the pressure plate to press against or move away from the upper surface of the protective plate through its own extension and retraction.

[0010] Furthermore, a synchronous gear is coaxially connected to the same side of each of the two shafts; The two synchronous gears are driven by a belt.

[0011] Furthermore, a handwheel is coaxially connected to the synchronizing gear via a connecting shaft.

[0012] Furthermore, the synchronizing gear is coaxially connected to the output shaft of a rotating motor.

[0013] Furthermore, it also includes a controller; The controller is connected to the rotating motor, the water pump, and the water pressure monitor, respectively.

[0014] Furthermore, a lifting ring is provided at the bottom of the connecting rope; The bottom end of the lifting ring is fixedly connected to the four corners of the counterweight plate.

[0015] Compared with the prior art, the present invention has the following technical effects: The detection component for water accumulation areas in mine goafs of this invention uses multiple sets of gear connecting components to lower the detection device into the coal roadway being mined below the goaf. The overall structure is convenient. It effectively detects the water pressure in the coal roadway through a water pressure monitor, judges the danger based on the water pressure, and prevents water seepage from occurring in the coal roadway being unable to withstand the stress in the coal roadway being mined below the goaf. At the same time, it can take timely preventive measures when a hazard exists. It enhances the monitoring range of water accumulation areas, makes it easy to observe the specific water level inside, and is suitable for large-scale industrial use and promotion. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the detection component for the mine goaf water accumulation area according to the present invention; Figure 2 This is a schematic diagram of the pumping device in this invention; Figure 3 This is an enlarged view of a portion of the structure in this invention; Figure 4 yes Figure 3 Enlarged view of section A in the middle; Figure 5 This is a schematic diagram of the pumping device in this invention; Figure 6 yes Figure 5 Enlarged view of part B.

[0017] The meanings of the labels in the diagram are as follows: 1. Through hole; 2. Fixing plate; 3. Pulley; 4. Support plate; 5. Shaft; 6. Winch; 7. Connecting rope; 8. Counterweight plate; 9. Pumping device; 10. Water pressure monitor; 11. Water pump; 12. Protective box; 13. Mounting plate; 14. Protective plate; 15. Telescopic rod; 16. Pressure plate; 17. Synchronous gear; 18. Handwheel; 19. Lifting ring. Detailed Implementation

[0018] It should be noted that, unless otherwise specified, all components in this invention are known in the prior art. For example, the water pressure monitor uses a commonly used water pressure monitor.

[0019] The following are specific embodiments of the present invention. It should be noted that the present invention is not limited to the following specific embodiments. All equivalent modifications made based on the technical solutions of this application fall within the protection scope of the present invention.

[0020] like Figure 1-2 As shown, a detection component for a waterlogged area in a mine goaf includes a vertical rectangular through hole 1 disposed on the upper surface of the roadway in the waterlogged area of ​​the mine goaf. On the upper surface of the tunnel, a pair of fixing plates 2 are respectively installed on opposite sides of the through hole 1. Each pair of fixing plates 2 has a pulley 3 on the side closest to each other, and the central axes of the two pulleys 3 are collinear. Each pair of fixed plates 2 has a support plate 4 on one side, and a rotating shaft 5 is mounted on the support plate 4. Both ends of the rotating shaft 5 are fitted with winches 6; a connecting rope 7 is wound on each winch 6. Four connecting ropes 7 pass around a pulley 3 and then enter the tunnel of the mine goaf water accumulation area from the four corners of the through hole 1. The bottom ends of the four connecting ropes 7 are connected to the four corners of a counterweight plate 8. A water pumping device 9 is installed on the counterweight plate 8, and the water outlet end of the water pumping device 9 extends out of the through hole 1 from the upper surface of the roadway. A water pressure monitor 10 is also installed on the pumping device 9.

[0021] The above structure, with the fixed plate 2 and the support plate 4, provides support and fixation on a safe ground.

[0022] By setting a counterweight plate 8, the lower surface of the counterweight plate is made to contact the bottom of the goaf and prevent it from floating.

[0023] By setting up a water pressure monitor 10, the device can be used to monitor water pressure, determine dangers based on water pressure, prevent water seepage in the roadways below the goaf due to stress, and take timely preventive measures when hazards exist.

[0024] By setting up the winch 6, it is easy to control the storage and fixation of the connecting rope 7.

[0025] The through-hole 1 opened on the surface of the roadway in the goaf water accumulation area of ​​the mine provides installation space for the equipment.

[0026] As a preferred option, such as Figure 3 As shown, the pumping device 9 includes a protective box 12, and the protective box 12 has multiple through holes; A water pump 11 is also installed on the upper surface of the roadway in the goaf water accumulation area of ​​the mine. The water pump 11's pumping pipe enters the protective box 12 through the through hole.

[0027] By setting up a protective box 12 and opening multiple through holes on the protective box as water inlets, it is easy for water to enter the protective box 12. By setting up a water pressure monitor 10, the water pressure at the bottom of the goaf is monitored by the water level depth.

[0028] More preferably, mounting plates 13 are provided on both sides of the inner wall of the through hole 1; A protective plate 14 is fitted between the two mounting plates 13, and the protective plate 14 has multiple vertical through holes.

[0029] Safety protection is provided by setting up protective plates 14 to prevent personnel from falling into the goaf. Personnel can judge the danger based on water pressure to prevent water seepage from occurring in the roadways below the goaf due to stress. At the same time, preventive measures can be taken in a timely manner when hazards exist.

[0030] In a further preferred embodiment, the lower part of the mounting plate 13 is provided with a mounting slot, and both ends of the protective plate 14 respectively enter the corresponding mounting slots of the mounting plate 13.

[0031] As a preferred option, such as Figure 5 , 6 As shown, a pressure plate 16 is connected to the upper part of the mounting plate 13 via a telescopic rod 15; When the protective plate 14 enters the mounting slot of the corresponding mounting plate 13, the telescopic rod 15 can drive the pressure plate 16 to press against or move away from the upper surface of the protective plate 14 through its own extension and retraction.

[0032] In this embodiment, the pressure plate 16 is L-shaped, and its lower surface is slidably connected to the inner wall of the mounting plate 13. A telescopic rod 15 is provided to maintain the connection with the L-shaped pressure plate 16, thus ensuring the stability of the protective plate 14.

[0033] Furthermore, a compression spring can be installed on the telescopic rod 15 to reset the pressure plate 16.

[0034] As a preferred embodiment, a synchronous gear 17 is coaxially connected to the same side of each of the two rotating shafts 5; The two synchronizing gears 17 are driven by a belt.

[0035] By using two synchronizing gears 17 and having them rotate synchronously via a belt, the four connecting ropes 7 are moved synchronously, further enhancing the stability of the overall device.

[0036] Preferably, a handwheel 18 is coaxially connected to the synchronizing gear 17 via a connecting shaft. In actual use, the operator can manually turn the handwheel 18 to drive the synchronizing gear 17 to rotate, thereby realizing the retrieval and lowering of the connecting rope 7.

[0037] As another preferred option, the synchronizing gear 17 is coaxially connected to the output shaft of a rotary motor. The rotary motor can be used to automatically control the rotation of the synchronizing gear 17, and those skilled in the art can choose this option according to their actual needs.

[0038] Further preferred options include a controller; The controller is connected to the rotating motor, the water pump 11 and the water pressure monitor 10 respectively to achieve automatic control.

[0039] As a preferred option, the bottom of the connecting rope 7 is provided with a hanging ring 19; The bottom end of the lifting ring 19 is screwed to the four corners of the counterweight plate 8.

[0040] The counterweight plate 8 is equipped with hooks at its four corners that match the lifting rings 19. By setting the lifting rings 19 of the connecting rope 7, it is easy to put the counterweight plate 8 in and retrieve it as a whole, and to maintain the connection between the connecting rope 7 and the counterweight plate 8. By setting the counterweight plate 8, the lower surface of the counterweight plate is in contact with the bottom of the goaf, so that it will not float.

[0041] When in use, the user pulls the pressure plate 16 to both sides. The movement of the pressure plate 16 causes the return spring to compress and shorten. At this time, the protective plate 14 is removed from the mounting plate 13, the lifting ring 19 is fixed to the connecting rope 7, and the counterweight plate 8 is inserted into the through hole 1. The operator then turns the handwheel 18, which drives the synchronous gear 17 to rotate. The synchronous gear 17 rotates, which in turn drives the connecting shaft to rotate. The rotating connecting shaft then drives the left winch 6 to rotate, thus achieving the slow descent of the counterweight plate 8. The counterweight plate 8 provides counterweight, ensuring that its lower surface contacts the bottom of the goaf and does not float. When the counterweight plate 8 reaches the lowest point of the goaf, it stops moving. The protective plate 14 is then fixed inside the mounting plate 13. The lower surface of the pressure plate 16 presses against the upper surface of the protective plate 14 to maintain the stability of the protective plate 14. At this time, the water pressure monitor 10 is activated by the controller. The water pressure monitor 10 monitors the water pressure at the bottom of the goaf by the water level depth. When it rains, the amount of rainwater in the goaf increases, the water level increases, and the water pressure at the bottom of the goaf increases. At this time, the water pump 11 is automatically activated by the controller. The water pump 11 facilitates water pumping operations with a small water pressure to avoid the risk of collapse. Through the above structure, the danger is judged based on the water pressure to prevent the coal roadway below the goaf from water seepage due to stress. At the same time, when the danger exists, preventive measures are taken in time.

Claims

1. A detection component for water accumulation areas in mine goafs, characterized in that, Including vertical rectangular through holes (1) set on the upper surface of the roadway in the goaf water accumulation area of ​​the mine; A pair of fixing plates (2) are respectively provided on the upper surface of the tunnel near the through hole (1) on opposite sides; each pair of fixing plates (2) is provided with a pulley (3) on the side that is close to each other, and the central axes of the two pulleys (3) are collinear; Each pair of fixed plates (2) is provided with a support plate (4) on one side, and a rotating shaft (5) is provided on the support plate (4). Both ends of the rotating shaft (5) are fixedly fitted with winches (6); each winch (6) is wound with a connecting rope (7). The four connecting ropes (7) pass around their corresponding pulleys (3) and then enter the tunnel of the mine goaf water accumulation area from the four corners of the through hole (1). The bottom ends of the four connecting ropes (7) are connected to the four corners of a counterweight plate (8). The counterweight plate (8) is equipped with a pumping device (9), and the outlet end of the pumping device (9) extends out of the through hole (1) onto the upper surface of the roadway. The pumping device (9) is also equipped with a water pressure monitor (10).

2. The detection component for water accumulation areas in mine goafs as described in claim 1, characterized in that, The pumping device (9) includes a protective box (12), and the protective box (12) has multiple through water inlets. The pumping device (9) also includes a pump (11) installed on the upper surface of the roadway in the goaf water accumulation area of ​​the mine. The pumping pipe of the pump (11) enters the protective box (12) through the through hole.

3. The detection component for water accumulation areas in mine goafs as described in claim 2, characterized in that, Mounting plates (13) are provided on both sides of the inner wall of the through hole (1); The mounting plate (13) has clearance holes at the four corners near the through hole (1) to allow the connecting rope (7) to pass through; A protective plate (14) is fitted between the two mounting plates (13), and the protective plate (14) has multiple vertical water inlets.

4. The detection component for water accumulation areas in mine goafs as described in claim 3, characterized in that, The mounting plate (13) has a mounting slot at the bottom, and the two ends of the protective plate (14) respectively enter the mounting slot of the corresponding mounting plate (13).

5. The detection component for water accumulation areas in mine goafs as described in claim 4, characterized in that, The mounting plate (13) is connected to a pressure plate (16) via a telescopic rod (15) on its upper part. When the protective plate (14) enters the mounting slot of the corresponding mounting plate (13), the telescopic rod (15) can drive the pressure plate (16) to press against or move away from the upper surface of the protective plate (14) through its own extension and retraction.

6. The detection component for water accumulation areas in mine goafs as described in claim 5, characterized in that, Each of the two shafts (5) is coaxially connected to a synchronous gear (17) on the same side. The two aforementioned synchronizing gears (17) are driven by a belt.

7. The detection component for mine goaf water accumulation areas as described in claims 1-6, characterized in that, A handwheel (18) is coaxially connected to the synchronous gear (17) via a connecting shaft.

8. The detection component for mine goaf water accumulation areas as described in claims 1-6, characterized in that, The synchronous gear (17) is coaxially connected to the output shaft of a rotating motor.

9. The detection component for mine goaf water accumulation areas as described in claim 8, characterized in that, It also includes the controller; The controller is connected to the rotating motor, the water pump (11) and the water pressure monitor (10) respectively.

10. The detection component for mine goaf water accumulation areas as described in claim 9, characterized in that, The bottom of the connecting rope (7) is provided with a hanging ring (19); The bottom end of the lifting ring (19) is fixedly connected to the four corners of the counterweight plate (8).

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