A coal mine water prevention and control mouth blocking filling equipment

By using an inflatable and wire rope-controlled telescopic filling tube combined with motor vibration compaction, the problem of incomplete filling in deep hydrological monitoring boreholes was solved, achieving tight filling of the borehole inner wall and eliminating safety hazards.

CN116733501BActive Publication Date: 2026-03-24XIAN RES INST OF CHINA COAL TECH & ENG GRP CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-07-13
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

When sealing existing hydrological monitoring boreholes, it is difficult to ensure that the borehole is fully filled at a deep depth, which can easily lead to poor backfilling and leave safety hazards.

Method used

An air ring and connecting air tube are used to extend the telescopic filling tube to the depth of the borehole. A steel wire rope is used to shorten and fill the tube. The drive motor drives the hammer block to vibrate and compact the filling material. The fixing mechanism ensures the stability of the equipment, and the lifting mechanism is adapted to drilling at different depths and directions.

Benefits of technology

It achieves comprehensive and compact filling of the borehole inner wall, preventing voids and incomplete filling, improving the sealing effect and ensuring safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to a kind of filling equipment, especially a kind of coal mine water prevention and control is used to fill the equipment of mouth.The feeding pump, filling material feeding pipe, fixed installation round plate, telescopic filling pipe, driving motor, winding wheel and steel wire rope are included, the discharge port of the feeding pump is connected with filling material feeding pipe, the tail end of the filling material feeding pipe is connected with fixed installation round plate, the lower end of the fixed installation round plate is fixedly connected with telescopic filling pipe, the telescopic filling pipe is communicated with the filling material feeding pipe, the fixed installation round plate is installed with driving motor, the output shaft of driving motor is connected with winding wheel, winding wheel is all wound with steel wire rope.The present application uses the principle of inflation ring and connecting inflation pipe inflation expansion, can make telescopic filling pipe elongation, telescopic filling pipe elongation can reach the deepest part of drilling, then using steel wire rope traction telescopic filling pipe can make it shorten, telescopic filling pipe shortens, can be filled from the deepest part of drilling upwards, make drilling filling more full and compact.
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Description

Technical Field

[0001] This invention relates to a filling device, and more particularly to a plugging and filling device for water control in coal mines. Background Technology

[0002] Before construction, coal mines conduct hydrological monitoring, often using hydrological drilling to understand the flow of groundwater and the distribution of water sources. This provides a scientific basis for the development, management, and protection of water resources. The drilling depth is generally quite deep. If the hydrological monitoring boreholes are not sealed in time, they will be affected by mining-induced fractures, which can easily lead to damage to the fractures within the boreholes and consequently cause water inrush in the working face.

[0003] When sealing existing hydrological monitoring boreholes, the grout is usually poured directly from the borehole opening. However, it is difficult to ensure that the borehole is fully filled during the sealing process, which can easily lead to poor backfilling results. In such cases, secondary filling is required. If the filling is still not done properly, it will leave serious safety hazards. Summary of the Invention

[0004] In order to overcome the shortcomings of existing hydrological monitoring borehole sealing methods, which generally involve direct pouring from the borehole opening but fail to ensure that the borehole is fully filled, this invention provides a sealing and filling device for coal mine water control that makes the borehole filling more compact.

[0005] This invention is achieved through the following technical means:

[0006] A plugging and filling device for water control in coal mines includes a movable mounting frame, a feeding pump, a filling material feeding pipe, a fixed mounting circular plate, and a telescopic filling pipe. The feeding pump is located on the upper part of the movable mounting frame, and its outlet is connected to the filling material feeding pipe. The end of the filling material feeding pipe is connected to the fixed mounting circular plate, and the telescopic filling pipe is fixedly connected to the lower end of the fixed mounting circular plate. The telescopic filling pipe is connected to the filling material feeding pipe. The device also includes a drive motor, a winding wheel, a steel wire rope, and an inflation mechanism. The drive motor is mounted on the fixed mounting circular plate, and its output shaft is connected to a winding wheel. A steel wire rope is wound around each winding wheel, and the lower end of the steel wire rope is connected to the bottom of the telescopic filling pipe. The inflation mechanism is used to expand and elongate the telescopic filling pipe.

[0007] More preferably, the inflation mechanism includes an air pump, an inflation ring, and a connecting inflation pipe. The air pump is installed on the side wall of the feeding pump, and an inflation ring is provided on the fixed mounting circular plate. One side of the inflation ring is detachably connected to the air delivery end of the air pump. The telescopic filling tube is evenly inserted with telescopic connecting inflation pipes. The inflation ring is connected to the connecting inflation pipes, and the steel wire rope is located inside the connecting inflation pipes.

[0008] More preferably, it also includes a fixing mechanism, which includes a mounting bracket, a first cylinder, and a fixing claw. The mounting bracket is evenly installed around the fixed mounting circular plate, and the first cylinder is installed on the mounting bracket. The extension rod of the first cylinder is fixedly connected to the fixing claw.

[0009] More preferably, it also includes a lifting mechanism, which includes a second cylinder, a first connecting plate, a third cylinder, and a second connecting plate. The second cylinder is installed on one side of the movable mounting frame. The telescopic shaft of the second cylinder is fixedly connected to the first connecting plate. The third cylinder is hinged to the bottom surface of the first connecting plate. The second connecting plate is hinged to the third cylinder. The first connecting plate and the second connecting plate are rotatably connected. The second connecting plate is fixedly connected to the fixed mounting circular plate.

[0010] More preferably, it also includes a vibration mechanism, which includes a first rotating shaft, a second rotating shaft, a bevel gear set, and a hammering block. The first rotating shaft is fixedly connected to the right end of the output shaft of the drive motor. The second rotating shaft is rotatably mounted on the fixed mounting circular plate located inside the first rotating shaft. A bevel gear set for transmission is connected between the first rotating shaft and the second rotating shaft. The hammering block is rotatably connected to the second rotating shaft.

[0011] More preferably, it also includes rollers, with rollers mounted on the bottom of the movable mounting bracket.

[0012] More preferably, it also includes a foot brake, on which the roller is equipped.

[0013] More preferably, the number of drive motors is at least four.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] 1. This invention utilizes the inflation principle of an air ring and a connecting air tube to extend the telescopic filling tube, allowing it to reach the deepest part of the borehole. Then, the telescopic filling tube can be shortened by pulling it with a steel wire rope. When the telescopic filling tube is shortened, it can start filling from the deepest part of the borehole upwards, making the borehole filling fuller and tighter.

[0016] 2. The present invention drives the motor to rotate, causing the first shaft fixed to the output shaft of the motor to rotate. The first shaft drives the second shaft to rotate through the bevel gear set, which in turn drives the hammer block to swing and beat the steel wire rope. The steel wire rope transmits the vibration to the bottom of the telescopic filling tube, thereby vibrating and compacting the filling slurry, preventing the telescopic filling tube from getting blocked, and also shaking out air bubbles in the filling material.

[0017] 3. This invention controls the extension of the second cylinder, thereby causing the first connecting plate to move upward. The second connecting plate then drives the fixed mounting plate to move upward. After reaching the predetermined position, the third cylinder is controlled to extend, causing the second connecting plate to rotate 90 degrees counterclockwise together with the fixed mounting plate. This makes the telescopic filling tube horizontal. The air pump is started to extend the telescopic filling tube into the horizontal drill hole. The feeding pump and drive motor are turned on, which can fill the horizontal drill hole with filling material.

[0018] 4. This invention controls the extension of the first cylinder on the mounting bracket, thereby pushing the fixing claw downward into the soil, which can achieve the function of fixing the equipment and avoid problems such as the telescopic filling tube coming out due to the reaction when the filling material is sprayed during operation. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0020] Figure 2 This is a three-dimensional structural diagram of the fixed mounting circular plate, drive motor, winding wheel, wire rope and telescopic filling tube of the present invention.

[0021] Figure 3 This is a partial cross-sectional view of the air ring and connecting air tube of the present invention.

[0022] Figure 4 This is a three-dimensional structural diagram of the fixing mechanism of the present invention.

[0023] Figure 5 This is a three-dimensional structural diagram of the lifting mechanism of the present invention.

[0024] Figure 6 This is a schematic diagram of the lifting mechanism of the present invention from another perspective.

[0025] Figure 7 This is a three-dimensional structural diagram of the vibration striking mechanism of the present invention.

[0026] Figure 8 This is a partial structural schematic diagram of the vibration striking mechanism of the present invention.

[0027] The labels in the attached diagram are as follows: 11-Mobile mounting bracket, 12-Feeding pump, 13-Fill material feeding pipe, 14-Fixed mounting plate, 15-Drive motor, 16-Winding reel, 17-Wire rope, 18-Telescopic filling tube, 21-Air pump, 22-Inflation ring, 23-Connecting inflation pipe, 31-Mounting bracket, 32-First cylinder, 33-Fixing claw, 41-Second cylinder, 42-First connecting plate, 43-Third cylinder, 44-Second connecting plate, 51-First rotating shaft, 52-Second rotating shaft, 53-Bevel gear set, 54-Hammer block, 6-Roller, 7-Foot brake. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings. It is hereby declared that the directional terms such as "up," "down," "left," "right," "front," "back," "inner," and "outer" appearing or about to appear in this document are based solely on the accompanying drawings and are not intended to specifically limit the invention. The serial numbers used for components, such as "first," "second," etc., are merely for distinguishing the described objects and have no sequential or technical meaning. Furthermore, terms such as "connection" or "linkage," unless otherwise specified, include both direct and indirect connections (linkages).

[0029] Example 1: A plugging and filling device for water control in coal mines, such as... Figure 1 and Figure 2 As shown, the system includes a movable mounting frame 11, a feeding pump 12, a filler feeding pipe 13, a fixed mounting circular plate 14, a drive motor 15, a winding reel 16, a steel wire rope 17, and a telescopic filling tube 18. The movable mounting frame 11 has a feeding pump 12 on its upper part. The outlet of the feeding pump 12 is connected to the filler feeding pipe 13. The end of the filler feeding pipe 13 is bolted to the fixed mounting circular plate 14. Four drive motors 15 are mounted on the fixed mounting circular plate 14. The output shaft of each drive motor 15 is connected to a winding reel 16, and a steel wire rope 17 is wound around each winding reel 16. The lower end of the fixed mounting circular plate 14... A telescopic filling tube 18 is bolted on and can extend and retract. The lower end of the steel wire rope 17 is connected to the bottom of the telescopic filling tube 18. When the telescopic filling tube 18 extends, it can directly reach the bottom of the borehole. Then, the drive motor 15 drives the winding wheel 16 to rotate and wind up the steel wire rope 17, which can pull the telescopic filling tube 18 to shorten slowly upward. During the shortening process, the filler can be filled from the bottom of the borehole from bottom to top, ensuring that the inside of the borehole can be completely and tightly filled. The telescopic filling tube 18 is connected to the filler feeding tube 13 and also includes an inflation mechanism for expanding and extending the telescopic filling tube 18.

[0030] like Figure 3As shown, the inflation mechanism includes an air pump 21, an inflation ring 22, and a connecting inflation pipe 23. The air pump 21 is installed on the side wall of the feeding pump. The inflation ring 22 is provided on the fixed mounting circular plate 14. One side of the inflation ring 22 is detachably connected to the air delivery end of the air pump 21. The telescopic filling tube 18 is evenly inserted with telescopic connecting inflation pipes 23. The inflation ring 22 is connected to the connecting inflation pipe 23. When the air pump 21 is started, the connecting inflation pipe 23 can expand and extend. The connecting inflation pipe 23 can drive the telescopic filling tube 18 to extend, so that the telescopic filling tube 18 can move to the deepest part of the borehole. The steel wire rope 17 is located inside the connecting inflation pipe 23. It also includes rollers 6, with rollers 6 mounted on the bottom of the mobile mounting frame 11; it also includes a foot brake 7, with a foot brake 7 mounted on the rollers 6; the rollers 6 can roll on the ground, thereby assisting the equipment in moving, making it convenient for people to push the equipment to the work site for use, without the need for manual handling of the equipment, saving time and effort. The foot brake 7 can fix the position of the rollers 6, preventing the rollers 6 from rotating, thereby maintaining the stability of the equipment position and preventing the equipment from moving at will.

[0031] like Figure 4 As shown, it also includes a fixing mechanism, which includes a mounting bracket 31, a first cylinder 32, and a fixing claw 33. The mounting bracket 31 is evenly installed around the fixed mounting circular plate 14. The first cylinder 32 is installed on the mounting bracket 31. The telescopic rod of the first cylinder 32 is fixedly connected to the fixing claw 33. The first cylinder 32 can control the fixing claw 33 to move up and down. When the fixing claw 33 moves down, it can be inserted into the ground, thereby ensuring the stability of the equipment during use.

[0032] When borehole sealing is required, first move the equipment to the work site, then align the telescopic filling tube 18 with the borehole, and turn on the air pump 21. The air pump 21 inflates the air ring 22 and the connecting air pipe 23, causing the connecting air pipe 23 to expand and extend, thus extending the telescopic filling tube 18 until it reaches the deepest point of the borehole. Then, turn off the air pump 21 and control the extension rod of the first cylinder 32 on the mounting bracket 31 to extend, which drives the fixing claw 33 to insert downward into the soil, thus fixing the equipment. Then, connect the filling material to the feed pump 12 and turn it on. The feed pump 12 can transport the filling material through the filling material feed pipe 13, allowing the filling material to be transported to the telescopic filling tube 18. Under the guidance of the telescopic filling tube 18, the filling material can be transported to the bottom of the borehole, thus filling the bottom of the borehole. When the air pump 21 is in operation, the connection between the air ring 22 and the air supply end of the air pump 21 can be disconnected. Then, the drive motor 15 on the fixed mounting plate 14 can be started to drive the winding wheel 16 to rotate and wind the wire rope 17. As the wire rope 17 is gradually wound upward, it can drive the telescopic filling tube 18 to shorten, so that the air in the telescopic filling tube 18 can be discharged outward through the connection between the air pipe 23 and the air ring 22. During the shortening process, the telescopic filling tube 18 can continuously deliver filler into the borehole, so that the borehole can be gradually filled with filler from bottom to top. This can ensure that the borehole is fully and tightly filled and prevent voids and missing fillers from appearing inside the borehole. After the borehole is filled, the feed pump 12 can be turned off, and then the telescopic rod of the first cylinder 32 on the mounting bracket 31 can be shortened, which can drive the fixed claw 33 to move upward away from the ground. At this time, the equipment can be moved and transferred.

[0033] Example 2: Based on Example 1, such as Figure 5 and Figure 6 As shown, it also includes a lifting mechanism, which includes a second cylinder 41, a first connecting plate 42, a third cylinder 43, and a second connecting plate 44. The second cylinder 41 is installed on one side of the movable mounting frame 11. The first connecting plate 42 is welded to the telescopic shaft of the second cylinder 41. The third cylinder 43 is hinged to the bottom surface of the first connecting plate 42. The second connecting plate 44 is hinged to the telescopic rod of the third cylinder 43. The first connecting plate 42 and the second connecting plate 44 are rotatably connected. The second connecting plate 44 is fixedly connected to the fixed mounting circular plate 14. By driving the first connecting plate 42 to rise through the second cylinder 41, the fixed mounting circular plate 14 can be raised to a suitable height, thereby enabling the filling of horizontal holes at high locations using this equipment.

[0034] When the equipment is needed to fill a horizontal borehole at a high position, the telescopic shaft of the second cylinder 41 can be extended, thereby causing the first connecting plate 42 to move upward, which in turn drives the second connecting plate 44 to move upward. The second connecting plate 44 can drive the fixed mounting circular plate 14 to move upward, raising the fixed mounting circular plate 14 to a suitable height. After reaching the predetermined position, the third cylinder 43 is extended, causing the second connecting plate 44 to rotate the fixed mounting circular plate 14 counterclockwise by 90 degrees, thereby making the telescopic filling tube 18 horizontal. The air pump 21 is started to extend the telescopic filling tube 18 into the horizontal borehole, and the feeding pump 12 and drive motor 15 are turned on to fill the horizontal borehole with filling material.

[0035] like Figure 7 and Figure 8 As shown, it also includes a vibration mechanism, which includes a first rotating shaft 51, a second rotating shaft 52, a bevel gear set 53, and a hammering block 54. The right end of the output shaft of the drive motor 15 is fixedly connected to the first rotating shaft 51. The second rotating shaft 52 is rotatably mounted on the fixed mounting circular plate 14 located inside the first rotating shaft 51. A bevel gear set 53 for transmission is connected between the first rotating shaft 51 and the second rotating shaft 52. The hammering block 54 is rotatably connected to the second rotating shaft 52.

[0036] When the drive motor 15 rotates, the first rotating shaft 51, which is fixed to the output shaft of the drive motor 15, will rotate. The first rotating shaft 51 drives the second rotating shaft 52 to rotate through the bevel gear set 53, which in turn drives the hammer block 54 to swing and hit the steel wire rope 17 continuously. The steel wire rope 17 transmits the vibration to the bottom of the telescopic filling tube 18, thereby vibrating and compacting the filled slurry, while preventing the telescopic filling tube 18 from getting blocked.

[0037] The embodiments described above are merely preferred embodiments of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications, improvements, and substitutions without departing from the concept of the present invention, and these all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A plugging and filling device for water control in coal mines, comprising a movable mounting frame (11), a feeding pump (12), a filler feeding pipe (13), a fixed mounting circular plate (14), and a telescopic filling pipe (18), wherein the movable mounting frame (11) is provided with a feeding pump (12) at its upper part, the outlet of the feeding pump (12) is connected to the filler feeding pipe (13), the end of the filler feeding pipe (13) is connected to the fixed mounting circular plate (14), the lower end of the fixed mounting circular plate (14) is fixedly connected to the telescopic filling pipe (18), and the telescopic filling pipe (18) is connected to the filler feeding pipe (13), characterized in that, It also includes a drive motor (15), a winding wheel (16), a steel wire rope (17) and an inflation mechanism. The drive motor (15) is mounted on the fixed mounting circular plate (14). The output shaft of the drive motor (15) is connected to the winding wheel (16). The steel wire rope (17) is wound on the winding wheel (16). The lower end of the steel wire rope (17) is connected to the bottom of the telescopic filling tube (18). The inflation mechanism is used to expand and elongate the telescopic filling tube (18). The inflation mechanism includes an air pump (21), an inflation ring (22), and a connecting inflation pipe (23). The air pump (21) is installed on the side wall of the feeding pump (12). An inflation ring (22) is provided on the fixed mounting circular plate (14). One side of the inflation ring (22) is detachably connected to the air delivery end of the air pump (21). The telescopic filling tube (18) is evenly inserted with a telescopic connecting inflation pipe (23). The inflation ring (22) is connected to the connecting inflation pipe (23). The steel wire rope (17) is located inside the connecting inflation pipe (23).

2. The plugging and filling device for water control in coal mines according to claim 1, characterized in that, It also includes a fixing mechanism, which includes a mounting bracket (31), a first cylinder (32) and a fixing claw (33). The mounting bracket (31) is evenly installed around the fixed mounting circular plate (14). The first cylinder (32) is installed on the mounting bracket (31), and the telescopic rod of the first cylinder (32) is fixedly connected to the fixing claw (33).

3. The plugging and filling device for water control in coal mines according to claim 2, characterized in that, It also includes a lifting mechanism, which includes a second cylinder (41), a first connecting plate (42), a third cylinder (43), and a second connecting plate (44). The second cylinder (41) is installed on one side of the movable mounting frame (11). The telescopic shaft of the second cylinder (41) is fixedly connected to the first connecting plate (42). The bottom surface of the first connecting plate (42) is hinged to the third cylinder (43). The second connecting plate (44) is hinged to the third cylinder (43). The first connecting plate (42) and the second connecting plate (44) are rotatably connected. The second connecting plate (44) is fixedly connected to the fixed mounting circular plate (14).

4. The plugging and filling device for water control in coal mines according to claim 3, characterized in that, It also includes a vibration mechanism, which includes a first rotating shaft (51), a second rotating shaft (52), a bevel gear set (53), and a hammering block (54). The output shaft of the drive motor (15) is fixedly connected to the right end of the first rotating shaft (51). The second rotating shaft (52) is rotatably mounted on the fixed mounting circular plate (14) located inside the first rotating shaft (51). A bevel gear set (53) for transmission is connected between the first rotating shaft (51) and the second rotating shaft (52). The hammering block (54) is rotatably connected to the second rotating shaft (52).

5. A plugging and filling device for water control in coal mines according to claim 4, characterized in that, It also includes rollers (6), and the bottom of the movable mounting bracket (11) is equipped with rollers (6).

6. A plugging and filling device for water control in coal mines according to claim 5, characterized in that, It also includes a foot brake (7), which is mounted on the roller (6).

7. A plugging and filling device for water control in coal mines according to claim 1, characterized in that, The number of drive motors (15) is at least 4.

Citation Information

Patent Citations

  • Coal seam grouting and filling equipment

    CN111305841A

  • Seam expanding and filling integrated equipment for repairing indoor wall corner cracks

    CN115059318A