Mine water plugging and utilizing device for abandoned mine

Abstract

The utility model discloses a mine water blocking and utilizing device for a waste mine, which takes an upstream face as a forward direction and comprises a blocking box for blocking a roadway and a conveying device for bearing a stirring device, the conveying device comprises a conveying shell, the conveying shell is downwards connected with walking wheels, and the conveying device is connected with a main water conveying pipe. A stirrer and a grouting pump are arranged in the conveying shell; a plurality of water collecting pipes are arranged at the bottom of the plugging box in the front-back direction side by side at intervals, the front end of each water collecting pipe is communicated with a roadway in front of the plugging box, and the rear end of each water collecting pipe is connected with a main water conveying pipe through a water collector. The bottom of the stirrer is connected with a slurry inlet pipe of a grouting pump, a slurry outlet pipe of the grouting pump forwards extends out of the conveying device, a grouting connector is formed in the top of the rear end of the plugging box, and the slurry outlet pipe is connected with the grouting connector; the top of the stirrer is backwards connected with a feeding port and a water adding port, and the feeding port and the water adding port backwards extend out of the conveying shell. The mine water collecting device is high in structural strength, firm in anchoring, convenient to transport and install, free of displacement in use and capable of collecting mine water for a long time in a roadway of a waste mine.

Description

Technical Field

[0001] The utility model relates to the technical field of mineral development, in particular to a technology for utilizing abandoned mine water resources. Background Art

[0002] Abandoned mines are located underground, and external water sources such as groundwater and surface precipitation will seep into the mines, forming mine water in the abandoned mines. The larger the mine, the richer the groundwater at the mine location, and the more precipitation in the mine area, the more mine water there will be in the abandoned mine.

[0003] If mine water is not managed properly, it may contaminate the surrounding soil and water bodies, affect the local ecosystem, cause water waste, and may cause mine collapse or other safety issues.

[0004] After the mine (such as a coal mine) is closed for drainage, the mine water often rebounds quickly and floods the mine, and also causes certain groundwater layer pollution problems. Only by making rational use of abandoned mine water can we avoid the waste and pollution of water resources, help control surface subsidence, maintain the ecological balance of the mining area, protect the environment, and have a profound and positive impact on the future modernization, ecological mine development layout, energy conservation and emission reduction, and green development.

[0005] The design idea of ​​the utility model is to block the tunnel at the lower part of the tunnel in the abandoned mine and collect mine water. To realize this design idea, it is necessary to comprehensively design a structure suitable for blocking the tunnel at the lower part of the tunnel in the abandoned mine, a water collection structure and a reinforcement structure.

[0006] If a plugging structure with high structural strength is directly used, the plugging structure will be large in size and weight, making it difficult to transport to the bottom of the tunnel. If the plugging structure is constructed on site, the construction will be difficult and the plugging efficiency will be low.

[0007] Therefore, the utility model adopts a hollow plugging structure with general structural strength, which is transported separately from the reinforcement during transportation, so as to be conveniently transported to the bottom of the tunnel.

[0008] If there is no reinforcement structure, the structure blocking the lane cannot block the lane stably for a long time. Therefore, the utility model cooperates with the reinforcement structure in the lane to reinforce the blocking structure.

[0009] The utility model solves the problem of reinforcing the plugging structure from two aspects of anchoring and enhancing the strength of the plugging structure. Utility Model Content

[0010] The utility model aims to provide a mine water plugging and utilizing device for abandoned mines, which is installed at the lower part of the tunnel in the abandoned mine to plug the tunnel and is used for collecting and conducting mine water.

[0011] In order to achieve the above-mentioned purpose, the utility model provides a mine water plugging and utilization device for abandoned mines, which takes the water-facing surface as the front, comprises a plugging box for plugging the tunnel and a conveying device for carrying a stirring device, the conveying device comprises a conveying shell, the conveying shell is connected with a walking wheel downward, the conveying device is connected with a main water delivery pipe, and a stirrer and a grouting pump are carried in the conveying shell; a water collecting pipe is arranged at the bottom of the plugging box along the front-to-back direction, a plurality of water collecting pipes are arranged side by side at intervals, the front end of each water collecting pipe is communicated with the tunnel in front of the plugging box, and the rear end of each water collecting pipe is connected with the main water delivery pipe through a water collector; the bottom of the agitator is connected with a slurry inlet pipe of the grouting pump, the slurry outlet pipe of the grouting pump extends forward from the conveying device, a grouting interface is arranged at the top of the rear end of the plugging box, and the slurry outlet pipe is connected with the grouting interface;

[0012] A feeding port and a water adding port are connected to the top of the agitator backwards, and the feeding port and the water adding port extend backwards out of the conveying shell.

[0013] The middle part of the bottom surface of the conveying shell is recessed upward to provide an installation groove, which extends in the front-to-back direction and matches the main water pipe. The middle part of the main water pipe is embedded in the installation groove, and the rear end of the main water pipe extends out of the installation groove and is used to connect to an external water pipeline.

[0014] The agitator includes a stirring tank, the bottom surface of which is adapted to the mounting groove to form an upwardly concave arc surface; a vertically extending stirring shaft is arranged in the stirring tank, the bottom end of the stirring shaft is rotatably connected to the bottom surface of the stirring tank via a lower bearing, the top end of the stirring shaft is rotatably connected to the top plate of the stirring tank via an upper bearing, the top end of the stirring shaft extends upward from the top plate of the stirring tank and is connected to a driving mechanism; a portion of the stirring shaft located in the stirring tank is connected to multiple layers of stirring blades at intervals above and below.

[0015] The driving mechanism includes a motor, and the output shaft of the motor drives the stirring shaft to rotate through the transmission mechanism;

[0016] The transmission mechanism is a belt transmission mechanism or a worm gear transmission mechanism;

[0017] When a worm gear transmission mechanism is adopted, a worm gear is connected to the top end of the stirring shaft, and the output shaft of the motor is a worm gear structure and meshes with the worm gear for transmission.

[0018] A filter is provided at the front end of each water receiving pipe.

[0019] A trumpet-shaped water inlet which is larger at the front and smaller at the back is arranged on the front wall of the plugging box corresponding to the front end of each water collecting pipe.

[0020] The water collector comprises a main cavity connected to the main water delivery pipe, the main cavity is connected to a plurality of branch pipes forwardly, and the branch pipes are connected to the rear ends of the water receiving pipes one by one.

[0021] Two grouting pumps are arranged at intervals, and the slurry outlet pipes of the two grouting pumps are combined and connected to the grouting interface.

[0022] The outer surface of the plugging box is provided with a plurality of ridges, and the plane where each ridge is located is perpendicular to the front-back direction. Each ridge is connected with a plurality of anchor rods, and the anchor rods are used to be anchored into the tunnel wall.

[0023] The utility model has the following advantages:

[0024] The plugging box of the utility model is in a hollow state before use, is light in weight, and is easy to transport and install. After installation, the plugging box can be conveniently reinforced by grouting through an agitator and a grouting pump to meet the structural strength requirements for long-term use. The utility model collects water in the tunnel through each water collection pipe and guides it into the main water delivery pipe, recycles the mine water of abandoned mines, avoids waste and pollution of water resources, helps control surface subsidence, helps maintain the ecological balance and environmental protection of the mining area, and has a profound and positive impact on the future modernization and ecological mine development layout, energy conservation and emission reduction, and green development.

[0025] The utility model has a simple structure and is mainly divided into two parts: a plugging box and a conveying device. The plugging box and the conveying device can be transported to the installation position at the bottom of the abandoned mine tunnel respectively, and then the plugging box and the conveying device are connected (the slurry outlet pipe is connected to the grouting interface, and the water collector is connected to each water receiving pipe and the main water delivery pipe), which is convenient for transportation and installation. The conveying device has walking wheels, which is convenient for moving in a small range in the tunnel to accurately adjust the position and facilitate installation.

[0026] The main water pipe is embedded in the installation groove, with a compact structure. The main water pipe does not reduce the passing performance of the conveying device in the tunnel, and the overall structural layout is more regular.

[0027] The agitator has a simple structure, and its structure matches the conveying shell, so that the utility model has better integrity and a more compact and reasonable structure.

[0028] The filter can prevent debris in the tunnels of abandoned mines from entering the water collection pipe.

[0029] The trumpet-shaped water inlet is conducive to collecting water. After long-term use, some impurity blocks will accumulate at the water inlet. The gaps between these impurity blocks can play a good role in water flow and do not block the water collection function of the utility model. The impurity blocks at the water inlet themselves also constitute a filtering structure to prevent impurities from entering the water collection pipe.

[0030] The water collector has a simple structure and can be welded through pipes, which is easy to manufacture and has low cost.

[0031] The provision of two sets of grouting pumps can reduce the diameter of the grouting pumps while maintaining the same grouting speed (the larger diameter of a single pump at the same grouting speed will increase the total volume of the conveying device), saving space, making the structure of the utility model more compact and easier to pass in the tunnel.

[0032] In the utility model, multiple anchor rods enable the plugging box of the utility model to be firmly fixed to the bottom of the tunnel, and will not be displaced during long-term water collection. Each ridge can also be arranged to be embedded in the tunnel wall to enhance the anchoring effect.

[0033] The utility model has high structural strength, is firmly anchored, is easy to transport and install, does not move during use, and can play the role of collecting mine water in the tunnel of an abandoned mine for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a structural schematic diagram of the utility model.

[0035] Figure 2 yes Figure 1 Top view of the .

[0036] Figure 3 yes Figure 1 Left view of .

[0037] Figure 4 yes Figure 1 AA section view.

[0038] Figure 5 yes Figure 1 CC cross-sectional view.

[0039] Figure 6 yes Figure 1 DD cross-sectional view.

[0040] Figure 7 It is a three-dimensional structural schematic diagram of the utility model.

[0041] Figure 8 It is a schematic diagram of the three-dimensional structure of the utility model at another angle after the conveying shell is removed.

[0042] Fig. 9 yes Figure 6 Enlarged view of point A in the middle. DETAILED DESCRIPTION

[0043] like Figures 1 to 9As shown, the utility model provides a mine water plugging and utilization device for abandoned mines, with the water-facing surface as the front (i.e., the direction in which the tunnel extends upward), comprising a plugging box 1 for plugging the tunnel and a conveying device for carrying a stirring device, the conveying device comprising a conveying shell 2, the conveying shell 2 is downwardly connected with a walking wheel 3, the conveying device is connected with a main water delivery pipe 4, and a stirrer and a grouting pump 5 are carried in the conveying shell 2; a water collecting pipe 6 is provided at the bottom of the plugging box 1 along the front-to-back direction, a plurality of water collecting pipes 6 are arranged side by side at intervals, the front end of each water collecting pipe 6 is communicated with the tunnel in front of the plugging box 1, and the rear end of each water collecting pipe 6 is connected to the main water delivery pipe 4 through a water collector; the bottom of the agitator is connected with a slurry inlet pipe 7 of the grouting pump 5, a slurry outlet pipe 8 of the grouting pump 5 extends forward out of the conveying device, a grouting interface 9 is provided at the top of the rear end of the plugging box 1, and the slurry outlet pipe 8 is connected to the grouting interface 9;

[0044] A feed inlet 10 and a water inlet 11 are connected to the top of the agitator backwards, and the feed inlet 10 and the water inlet 11 extend backwards out of the conveying shell 2.

[0045] The plugging box 1 of the utility model is in a hollow state before use, is light in weight, and is easy to transport and install. After installation, the plugging box 1 can be conveniently reinforced by grouting through the agitator and the grouting pump 5 to meet the structural strength requirements in long-term use. The utility model collects water in the tunnel through each water collection pipe 6 and guides it into the main water delivery pipe 4, recycles the mine water of the abandoned mine, avoids the waste and pollution of water resources, helps to control surface subsidence, helps to maintain the ecological balance and environmental protection of the mining area, and has a profound and positive impact on the future modernization and ecological mine development layout, energy conservation and emission reduction, and green development.

[0046] The utility model has a simple structure, mainly divided into two parts: a plugging box 1 and a conveying device. The plugging box 1 and the conveying device can be transported to the installation position at the bottom of the abandoned mine tunnel respectively, and then the plugging box 1 and the conveying device are connected (the slurry outlet pipe 8 is connected to the grouting interface 9, and the water collector is connected to each water receiving pipe 6 and the main water delivery pipe 4), which is convenient for transportation and installation. The conveying device has a walking wheel 3, which is convenient for moving in a small range in the tunnel to accurately adjust the position and facilitate installation.

[0047] The middle of the bottom surface of the conveying housing 2 is recessed upward to form a mounting groove 12, which extends in the front-to-back direction and matches the main water pipe 4. The middle of the main water pipe 4 is embedded in the mounting groove 12, and the rear end of the main water pipe 4 extends out of the mounting groove 12 and is used to connect an external water pipeline. The external water pipeline guides water to a water treatment device (such as a sedimentation tank of a water treatment system) or a water use site.

[0048] The main water pipe 4 is embedded in the installation groove 12, and the structure is compact. The main water pipe 4 does not reduce the passing performance of the conveying device in the tunnel, and the overall structural layout is more regular.

[0049] The agitator comprises a stirring tank 13, the bottom surface 14 of the stirring tank 13 is adapted to the mounting groove 12 to form an upwardly concave arc surface; a stirring shaft 15 extending vertically is arranged in the stirring tank 13, the bottom end of the stirring shaft 15 is rotatably connected to the bottom surface 14 of the stirring tank 13 through a lower bearing, the top of the stirring shaft 15 is rotatably connected to the top plate 16 of the stirring tank 13 through an upper bearing, the top end of the stirring shaft 15 extends upwardly out of the top plate 16 of the stirring tank 13 and is connected to a driving mechanism; the portion of the stirring shaft 15 located in the stirring tank 13 is connected with multiple layers of stirring blades 17 at intervals above and below. The bearings are conventional technology, and the upper and lower bearings are not shown in the figure.

[0050] The agitator has a simple structure, and its structure matches the conveying shell 2, so that the utility model has better integrity and a more compact and reasonable structure.

[0051] The driving mechanism includes a motor 18, and the output shaft of the motor 18 drives the stirring shaft 15 to rotate through a transmission mechanism; the transmission mechanism is a belt transmission mechanism (such as a conical belt pulley) or a worm gear transmission mechanism;

[0052] When a worm gear transmission mechanism is adopted, a worm gear 19 is connected to the top end of the stirring shaft 15 (located above the top plate 16 of the stirring tank 13 ), and the output shaft 20 of the motor 18 is a worm structure and meshes with the worm gear 19 for transmission.

[0053] A filter screen 21 is provided at the front end of each water collecting pipe 6. The filter screen 21 can prevent debris in the tunnel of the abandoned mine from entering the water collecting pipe 6. A trumpet-shaped water inlet 22 with a larger front and a smaller back is provided on the front wall of the plugging box 1 corresponding to the front end of each water collecting pipe 6.

[0054] The trumpet-shaped water inlet 22 is conducive to collecting water. After long-term use, some impurity blocks will accumulate at the water inlet 22. The gaps between these impurity blocks can play a good role in passing water and do not block the water collection function of the utility model. In addition, the impurity blocks at the water inlet 22 themselves also constitute a filtering structure to prevent impurities from entering the water collection pipe 6.

[0055] The water collector includes a main cavity 23 connected to the water main pipe 4, and the main cavity 23 is connected to a plurality of branch pipes 24, and the branch pipes 24 are connected to the rear ends of the water receiving pipes 6 one by one. The water collector has a simple structure and can be welded by pipelines, which is convenient to manufacture and has low cost.

[0056] Two grouting pumps 5 are arranged at intervals, and the grouting pipes 8 of the two grouting pumps 5 are combined and connected to the grouting interface 9. The arrangement of two sets of grouting pumps 5 can reduce the diameter of the grouting pumps 5 while maintaining the same grouting speed (the diameter of a single pump is larger at the same grouting speed, which will increase the total volume of the conveying device), save space, make the structure of the utility model more compact, and make it easier to pass in the tunnel.

[0057] The outer surface of the plugging box 1 is provided with a plurality of ridges 25, and the plane where each ridge 25 is located is perpendicular to the front-back direction. Each ridge 25 is connected to a plurality of anchor rods 26, and the anchor rods 26 are used to be anchored into the tunnel wall.

[0058] In the present invention, the plurality of anchor rods 26 enable the plugging box 1 of the present invention to be firmly fixed to the bottom of the tunnel and will not be displaced during long-term water collection. Each ridge 25 can also be configured to be embedded in the tunnel wall to enhance the anchoring effect.

[0059] The utility model has high structural strength and is firmly anchored, and will not be displaced during use, and can play the role of collecting mine water in the tunnel of an abandoned mine for a long time.

[0060] When in use, the first step is transportation. The plugging box 1 integrated with the water collecting pipe 6, the conveying device and the grouting material are respectively conveyed to the predetermined installation position at the bottom of the tunnel of the abandoned mine. Since the plugging box 1 is in a hollow state at this time, it is light and easy to transport. The conveying device has running wheels 3, which can be moved directly in the tunnel, or it can be transported by a mine car to the vicinity of the installation position and then moved to the precise predetermined position through the running wheels 3. The grouting material (such as cement slurry, mixed slurry, slag slurry, fly ash slurry, etc.) and water required for grouting are conveyed to the working position.

[0061] After the transporting step, the plugging box 1 is installed. An anchor rod 26 is driven into the tunnel wall at a predetermined position, the plugging box 1 is clamped at the predetermined position of the tunnel, each ridge 25 is embedded in the tunnel wall, and the anchor rod 26 is connected to the ridge 25. Then the connecting step is performed.

[0062] The connection steps are to use a water collector to connect the main water supply pipe 4 and each water collection pipe 6, connect the slurry outlet pipe 8 with the grouting interface 9, and connect the rear end of the water supply main pipe with an external water supply pipeline. The external water supply pipeline is used to guide water to a water treatment device (such as a sedimentation tank of a water treatment system) or a water use site.

[0063] The connection step is followed by the step of adding materials, stirring and grouting. Grouting material and water are added into the stirring tank 13 through the feeding port 10 and the water inlet 11, and the motor 18 is turned on. The motor 18 drives the stirring shaft 15 and the stirring blade 17 to rotate through the transmission mechanism, so that the grouting material and water are evenly stirred. After the stirring time reaches the predetermined time (such as stirring for 10 minutes, the stirring time is determined by the staff according to the type and amount of the grouting material), the motor 18 is turned off, and the two grouting pumps 5 are started to inject the stirred slurry into the plugging box 1 until the plugging box 1 is filled with slurry. After the slurry solidifies, the installation work of the utility model is completed, and each water collection pipe 6 can continuously collect mine water from the abandoned mine through the filter screen 21 and the water inlet 22.

[0064] The above embodiments are only used to illustrate rather than limit the technical solutions of the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art should understand that the present invention can still be modified or replaced by equivalents. Any modification or partial replacement that does not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A mine water plugging and utilization device for abandoned mines, with the water-facing surface as the front, characterized by: It includes a plugging box for plugging the tunnel and a conveying device for carrying the stirring device, the conveying device includes a conveying shell, the conveying shell is connected with a walking wheel downward, the conveying device is connected with a main water pipe, and a stirrer and a grouting pump are carried in the conveying shell; a water collecting pipe is provided at the bottom of the plugging box along the front-to-back direction, and a plurality of water collecting pipes are arranged side by side at intervals, the front end of each water collecting pipe is communicated with the tunnel in front of the plugging box, and the rear end of each water collecting pipe is connected with the main water pipe through a water collector; the bottom of the stirrer is connected with a slurry inlet pipe of the grouting pump, and a slurry outlet pipe of the grouting pump extends forward from the conveying device, a grouting interface is provided at the top of the rear end of the plugging box, and the slurry outlet pipe is connected with the grouting interface; A feeding port and a water adding port are connected to the top of the agitator backwards, and the feeding port and the water adding port extend backwards out of the conveying shell.

2. The mine water plugging and utilization device for abandoned mines according to claim 1, characterized in that: The middle part of the bottom surface of the conveying shell is recessed upward to provide an installation groove, which extends in the front-to-back direction and matches the main water pipe. The middle part of the main water pipe is embedded in the installation groove, and the rear end of the main water pipe extends out of the installation groove and is used to connect to an external water pipeline.

3. The mine water plugging and utilization device for abandoned mines according to claim 2, characterized in that: The agitator includes a stirring tank, the bottom surface of which is adapted to the mounting groove to form an upwardly concave arc surface; a vertically extending stirring shaft is arranged in the stirring tank, the bottom end of the stirring shaft is rotatably connected to the bottom surface of the stirring tank via a lower bearing, the top end of the stirring shaft is rotatably connected to the top plate of the stirring tank via an upper bearing, the top end of the stirring shaft extends upward from the top plate of the stirring tank and is connected to a driving mechanism; a portion of the stirring shaft located in the stirring tank is connected to multiple layers of stirring blades at intervals above and below.

4. The mine water plugging and utilization device for abandoned mines according to claim 3 is characterized in that: The driving mechanism includes a motor, and the output shaft of the motor drives the stirring shaft to rotate through the transmission mechanism; The transmission mechanism is a belt transmission mechanism or a worm gear transmission mechanism; When a worm gear transmission mechanism is adopted, a worm gear is connected to the top end of the stirring shaft, and the output shaft of the motor is a worm gear structure and meshes with the worm gear for transmission.

5. The mine water plugging and utilization device for abandoned mines according to any one of claims 1 to 4, characterized in that: A filter is provided at the front end of each water receiving pipe.

6. The mine water plugging and utilization device for abandoned mines according to claim 5, characterized in that: A trumpet-shaped water inlet which is larger at the front and smaller at the back is arranged on the front wall of the plugging box corresponding to the front end of each water collecting pipe.

7. The mine water plugging and utilization device for abandoned mines according to claim 1, characterized in that: The water collector comprises a main cavity connected to the main water delivery pipe, the main cavity is connected to a plurality of branch pipes forwardly, and the branch pipes are connected to the rear ends of the water receiving pipes one by one.

8. The mine water plugging and utilization device for abandoned mines according to claim 1, characterized in that: Two grouting pumps are arranged at intervals, and the slurry outlet pipes of the two grouting pumps are combined and connected to the grouting interface.

9. The mine water plugging and utilization device for abandoned mines according to claim 1, characterized in that: The outer surface of the plugging box is provided with a plurality of ridges, the plane where each ridge is located is perpendicular to the front-back direction, and each ridge is connected with a plurality of anchor rods, which are used to be anchored into the tunnel wall.

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