A water plugging and grouting device for coal mine geology
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BALIKUNYIN MINING IND INVESTMENT CO LTD
- Filing Date
- 2025-05-09
- Publication Date
- 2026-07-10
AI Technical Summary
In existing technologies, the flow rate of grout in the grouting pipe cannot be controlled, which can easily lead to blockage and reduce the practicality of grouting work.
By using a combination of components such as a conveyor box, worm gear, worm wheel, auger conveyor roller, grinding roller and stirring rod, the slurry is ground, stirred and uniformly conveyed, the flow rate is controlled and clogging is avoided.
This method achieves uniform grinding and delivery of the grout, improves the quality of grouting and the practicality of construction, and avoids clogging of the grouting pipes.
Smart Images

Figure CN224478439U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a grouting device, specifically a water-blocking grouting device for coal mine geology, belonging to the technical field of grouting equipment. Background Technology
[0002] Coal mine grouting is a measure to prevent coal mine flooding. It is generally carried out in areas where water sources are exposed in the coal mine. Grouting is used to reinforce the geological body by filling cracks, cavities, or faults, making it more solid and stable, reducing water seepage and leakage, and thus preventing water inrush. This method can reduce water accumulation and inrush beneath the coal mine working face, ensuring the safety of the working face.
[0003] A search revealed a Chinese patent with publication number CN220565210U that discloses a grouting device for plugging water in coal mine geology. The device includes a shell, a grouting pipe, and a water absorption structure. The grouting pipe is located inside the shell. One end of the grouting pipe is connected to a grouting supply device, and the other end is the grout outlet of the grouting pipe. This device can remove sewage from cracks and prevent sewage from mixing with the grout, thus reducing the grout concentration.
[0004] While the above solutions can remove sewage from cracks, the grouting pipes of these devices are directly connected to the grouting equipment, making it impossible to control the flow rate of the grout within the pipes. Excessive flow rate can easily cause blockage of the grouting pipes, severely affecting the grouting work and resulting in low practicality. Therefore, we provide a water-blocking grouting device for coal mine geology to solve the above problems. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] The purpose of this invention is to provide a water-blocking grouting device for coal mine geology to solve the above-mentioned problems, thereby addressing the issue that the existing technology cannot control the flow rate of the grout in the grouting pipe and has low practicality.
[0007] (II) Technical Solution
[0008] This utility model is achieved through the following technical solution: a water-blocking grouting device for coal mine geology, comprising a movable frame, a processing tank for processing slurry fixedly connected to the inner wall of the movable frame, a conveying mechanism for conveying slurry provided below the movable frame, the conveying mechanism comprising a conveying box, the outer surface of the conveying box being fixedly connected to the movable frame, the top surface of the conveying box being fixedly connected to the processing tank, two worm gears being rotatably connected to the inner bottom wall of the conveying box, the end of the worm gear away from the conveying box being rotatably connected to the processing tank, a worm wheel being meshed between the two worm gears, the outer surface of the worm wheel being rotatably connected to the conveying box.
[0009] Preferably, a connecting rod is rotatably connected to the inner wall of the conveyor box, and one end of the connecting rod is fixedly connected to a worm gear. The conveyor box effectively supports and limits the connecting rod.
[0010] Preferably, the end of the connecting rod away from the worm gear is fixedly connected to an auger conveyor roller, and the outer surface of the auger conveyor roller is rotatably connected to the conveyor box. By rotating the connecting rod, the auger conveyor roller is effectively driven to rotate.
[0011] Preferably, a second worm wheel is meshed with the outer surface of the worm, and the second worm wheel is rotatably connected to the inner wall of the processing box through a rotating rod. By rotating the worm, the second worm wheel can be effectively driven to rotate through its own meshing force.
[0012] Preferably, two grinding rollers are rotatably connected to the inner wall of the processing box. One end of each grinding roller is fixedly connected to a worm gear via a rotating rod. A scraper is fixedly connected to the inner wall of the processing box, and a pump body is fixedly connected to the outer surface of the conveying box. The grinding rollers effectively grind the mineral slurry raw material.
[0013] Preferably, the processing box is equipped with a stirring mechanism, which includes a worm gear three. The outer surface of the worm gear three is rotatably connected to the processing box, and the outer surface of the worm gear three is meshed with a worm. The inner wall of the processing box is rotatably connected to a drive rod, one end of which is fixedly connected to the worm gear three. By rotating the worm, the worm gear three can be effectively driven to rotate.
[0014] Preferably, a bevel gear one is fixedly connected to the end of the drive rod away from the worm gear three, a bevel gear two is meshed with the outer surface of the bevel gear one, the bevel gear two is rotatably connected to the processing box via a connecting rod, a bevel gear three is meshed with the outer surface of the bevel gear two, the outer surface of the bevel gear three is rotatably connected to the processing box, and a fixed rod is rotatably connected to the bottom surface of the bevel gear two, with the end of the fixed rod away from the bevel gear two fixedly connected to the processing box, thereby making the rotation of the bevel gear two more stable.
[0015] Preferably, a rotating cylinder is rotatably connected to the inner wall of the processing box. One end of the rotating cylinder passes through the processing box and is fixedly connected to a bevel gear. A stirring rod is fixedly connected to the driving rod and the outer surface of the rotating cylinder. A bearing is fixedly installed between the rotating cylinder and the processing box. The inner ring of the bearing is fixedly connected to the rotating cylinder, and the outer ring of the bearing is fixedly connected to the processing box, thereby effectively restricting the rotating cylinder to only rotate and not move.
[0016] This utility model provides a water-blocking grouting device for coal mine geology, which has the following beneficial effects:
[0017] 1. This grouting device for water plugging in coal mine geology, through the coordinated arrangement of a conveying box, worm gear, worm wheel one, connecting rotating rod, auger conveying roller, worm wheel two, grinding roller, scraper and pump body, enables the grout to be ground into uniformly sized particles before being conveyed in equal and uniform quantities. This effectively controls the flow rate during grouting, avoiding the blockage of the grouting pipeline caused by excessively fast grout flow in the pipe, which would affect the construction process, and further enhances the practicality of the device.
[0018] 2. The water-blocking grouting device for coal mine geology is configured with a worm gear three, a drive rod, bevel gear one, bevel gear two, bevel gear three, a rotating drum and a stirring rod, which enables the grinding slurry to be stirred, effectively mixing the slurry raw materials more evenly and greatly improving the grouting quality. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the grinding roller of this utility model;
[0021] Figure 3 This is a three-dimensional structural diagram of the conveying mechanism of this utility model;
[0022] Figure 4 This is a three-dimensional structural diagram of the stirring mechanism of this utility model.
[0023] [Explanation of Key Component Symbols]
[0024] 1. Mobile rack; 2. Processing box;
[0025] 3. Conveying mechanism; 301. Conveying box; 302. Worm; 303. Worm wheel one; 304. Connecting rotating rod; 305. Screw conveyor roller; 306. Worm wheel two; 307. Grinding roller; 308. Scraper; 309. Pump body;
[0026] 4. Stirring mechanism; 401. Worm gear three; 402. Drive rod; 403. Bevel gear one; 404. Bevel gear two; 405. Bevel gear three; 406. Rotary drum; 407. Stirring rod. Detailed Implementation
[0027] This utility model provides a water-blocking grouting device for coal mine geology.
[0028] Please see Figure 1 The device includes a movable frame 1, the outer surface of which is equipped with a power supply to provide power to the electrical equipment in this application. The bottom surface of the movable frame 1 is equipped with casters, which makes it easier to move the device.
[0029] The inner wall of the mobile frame 1 is fixedly connected to the processing tank 2 for processing slurry. The top surface of the processing tank 2 is equipped with a feed hopper, which facilitates the feeding of mineral slurry raw materials.
[0030] Please refer to it again. Figure 1 , Figure 2 and Figure 3 Below the mobile frame 1 is a conveying mechanism 3 for conveying slurry. The conveying mechanism 3 includes a conveying box 301. The outer surface of the conveying box 301 is fixedly connected to the mobile frame 1. The top surface of the conveying box 301 is fixedly connected to the processing box 2. The top surface of the conveying box 301 is provided with a feed inlet, so that the slurry raw material can be effectively dropped into the interior of the conveying box 301 after being ground and stirred inside the processing box 2.
[0031] Two worm gears 302 are rotatably connected to the inner bottom wall of the conveyor box 301. The end of the worm gear 302 away from the conveyor box 301 is rotatably connected to the processing box 2. A worm wheel 303 is meshed between the two worm gears 302. The outer surface of the worm wheel 303 is rotatably connected to the conveyor box 301. A drive motor is fixedly installed on the inner wall of the conveyor box 301. The drive motor is electrically connected to the power supply on the surface of the moving frame 1 through a wire. The output end of the drive motor is fixedly connected to the worm wheel 303. The control button of the drive motor is installed on the outer surface of the moving frame 1.
[0032] Drive motors are common electrical devices in the prior art. This application will not elaborate on their models or internal structures. They can also be replaced by other power sources.
[0033] The inner wall of the conveyor box 301 is rotatably connected to a connecting rod 304. One end of the connecting rod 304 is fixedly connected to a worm gear 303. The rotation of the worm gear 303 can effectively drive the connecting rod 304 to rotate simultaneously.
[0034] A screw conveyor roller 305 is fixedly connected to the end of the connecting rod 304 away from the worm gear 303. The outer surface of the screw conveyor roller 305 is rotatably connected to the conveying box 301. The rotation of the screw conveyor roller 305 can effectively convey the slurry in equal and uniform quantities.
[0035] The outer surface of the worm gear 302 is meshed with a worm wheel 306. The worm wheel 306 is rotatably connected to the inner wall of the processing box 2 via a rotating rod. The outer surface of the worm wheel 306 is fixedly connected to a rotating rod, which is rotatably connected to the inner wall of the processing box 2, thereby making the rotation of the worm wheel 306 more stable.
[0036] Two grinding rollers 307 are rotatably connected to the inner wall of the processing box 2. One end of the grinding roller 307 is fixedly connected to the worm gear 306 via a rotating rod. A scraper 308 is fixedly connected to the inner wall of the processing box 2. A pump body 309 is fixedly connected to the outer surface of the conveying box 301. The scraper 308 effectively scrapes off the slurry raw material on the surface of the grinding roller 307.
[0037] The output end of the pump body 309 is fixedly connected to a grouting pipe. The outer surface of the movable frame 1 is equipped with a control button for the pump body 309. The control button can control the forward and reverse pumping of the grouting pipe. When the forward pumping is turned on, the grout inside the conveying box 301 can be effectively pumped into the grouting pipe for grouting. When the reverse pumping is turned on, the sewage in the mine fissure can be pumped out through the grouting pipe and discharged through the drain port on the surface of the pump body 309.
[0038] Please refer to it again. Figure 2 and Figure 4 The processing box 2 is equipped with a stirring mechanism 4. The stirring mechanism 4 includes a worm gear 3 401. The outer surface of the worm gear 3 401 is rotatably connected to the processing box 2. The outer surface of the worm gear 3 401 is meshed with the worm 302. The inner wall of the processing box 2 is rotatably connected to a drive rod 402. One end of the drive rod 402 is fixedly connected to the worm gear 3 401. The rotation of the worm gear 3 401 can simultaneously drive the drive rod 402 to rotate.
[0039] A bevel gear 403 is fixedly connected to the end of the drive rod 402 away from the worm gear 401. A bevel gear 404 is meshed with the outer surface of the bevel gear 403. The bevel gear 404 is rotatably connected to the processing box 2 through a connecting rod. A bevel gear 405 is meshed with the outer surface of the bevel gear 404. The outer surface of the bevel gear 405 is rotatably connected to the processing box 2. Through the rotation of the bevel gear 404, the bevel gears 403 and 405 can be effectively rotated relative to each other simultaneously.
[0040] A rotating drum 406 is rotatably connected to the inner wall of the processing box 2. One end of the rotating drum 406 passes through the processing box 2 and is fixedly connected to the bevel gear 405. A stirring rod 407 is fixedly connected to the outer surface of the drive rod 402 and the rotating drum 406. By rotating the drive rod 402 and the rotating drum 406, the stirring rod 407 is effectively driven to rotate and stir the ground slurry raw material, so as to make the raw material more uniformly mixed.
[0041] The pump body 309 in this application is a common electrical device in the prior art, and its model or internal structure will not be described in detail here.
[0042] Working principle: First, the slurry raw material is fed into the processing tank 2. Then, the drive device is turned on to drive the worm gear 303 to rotate. The rotation of the worm gear 303 drives the two worms 302 to rotate through the meshing force. The rotation of the worms 302 drives the worm gear 306 to rotate. The rotation of the worm gear 306 drives the two grinding rollers 307 to rotate relative to each other to grind the slurry raw material into uniform particles. At the same time, the rotation of the worms 302 drives the worm gear 401 to rotate through the meshing force. The rotation of the worm gear 401 drives the bevel gear 404 on the surface of the bevel gear 403 to rotate. The rotation of the bevel gear 404 drives the rotating drum 406 on the surface of the bevel gear 405 to rotate simultaneously with the main... The moving rod 402 rotates relative to the rotating drum 406, which in turn drives the stirring rod 407 on their surfaces to rotate, effectively stirring the ground slurry and making the raw materials more uniformly mixed. The stirred slurry will be transported into the conveying box 301. At the same time, the rotation of the worm gear 303 will drive the auger conveying roller 305 connected to one end of the rotating rod 304 to rotate. The rotation of the auger conveying roller 305 will push the slurry to be transported evenly from the inside of the conveying box 301 into the pump body 309. Through the pressurization of the pump body 309 and the grouting pipe at the output end of the pump body 309, the slurry is effectively transported to the grouting point, further making the device more practical.
[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A water-blocking grouting device for coal mine geology, comprising a movable frame (1), characterized in that: The inner wall of the mobile frame (1) is fixedly connected to a slurry processing tank (2). A slurry conveying mechanism (3) is provided below the mobile frame (1). The conveying mechanism (3) includes a conveying box (301). The outer surface of the conveying box (301) is fixedly connected to the mobile frame (1). The top surface of the conveying box (301) is fixedly connected to the processing tank (2). Two worm gears (302) are rotatably connected to the inner bottom wall of the conveying box (301). The end of the worm gear (302) away from the conveying box (301) is rotatably connected to the processing tank (2). A worm wheel (303) is meshed between the two worm gears (302). The outer surface of the worm wheel (303) is rotatably connected to the conveying box (301).
2. The water-blocking grouting device for coal mine geology according to claim 1, characterized in that: The inner wall of the conveyor box (301) is rotatably connected to a connecting rod (304), and one end of the connecting rod (304) is fixedly connected to a worm gear (303).
3. A water-blocking grouting device for coal mine geology according to claim 2, characterized in that: The end of the connecting rod (304) away from the worm gear (303) is fixedly connected to the auger conveyor roller (305), and the outer surface of the auger conveyor roller (305) is rotatably connected to the conveyor box (301).
4. A water-blocking grouting device for coal mine geology according to claim 1, characterized in that: The outer surface of the worm (302) is meshed with a worm wheel (306), which is rotatably connected to the inner wall of the processing box (2) via a rotating rod.
5. A water-blocking grouting device for coal mine geology according to claim 4, characterized in that: The inner wall of the processing box (2) is rotatably connected to two grinding rollers (307). One end of the grinding roller (307) is fixedly connected to the second worm gear (306) through a rotating rod. The inner wall of the processing box (2) is fixedly connected to a scraper (308). The outer surface of the conveying box (301) is fixedly connected to a pump body (309).
6. A water-blocking grouting device for coal mine geology according to claim 1, characterized in that: The processing tank (2) is equipped with a stirring mechanism (4), which includes a worm gear (401). The outer surface of the worm gear (401) is rotatably connected to the processing tank (2), and the outer surface of the worm gear (401) is meshed with a worm (302). The inner wall of the processing tank (2) is rotatably connected to a drive rod (402), and one end of the drive rod (402) is fixedly connected to the worm gear (401).
7. A water-blocking grouting device for coal mine geology according to claim 6, characterized in that: The end of the active rod (402) away from the worm gear three (401) is fixedly connected to a bevel gear one (403). The outer surface of the bevel gear one (403) is meshed with a bevel gear two (404). The bevel gear two (404) is rotatably connected to the processing box (2) through a connecting rod. The outer surface of the bevel gear two (404) is meshed with a bevel gear three (405). The outer surface of the bevel gear three (405) is rotatably connected to the processing box (2).
8. A water-blocking grouting device for coal mine geology according to claim 7, characterized in that: The inner wall of the processing box (2) is rotatably connected to a rotating cylinder (406). One end of the rotating cylinder (406) passes through the processing box (2) and is fixedly connected to the bevel gear (405). The driving rod (402) and the outer surface of the rotating cylinder (406) are fixedly connected to a stirring rod (407).