A smart control device for filling in mines

Abstract

This utility model relates to the field of mining engineering equipment technology, and in particular to an intelligent control device for mine filling. It includes a base, a main control box fixedly connected to the top of the base, and two conveying barrels mirror-distributed around the main control box. Flange pipes communicating with the inner walls of the two conveying barrels are fixedly connected to the tops of the two conveying barrels. Flow meters are fixedly connected to the inner walls of the flange pipes. A mixing tank is installed on the outer wall of the base, and a stirring rod is rotatably connected to the inner wall of the mixing tank. A liquid level sensor is fixedly connected to the inner wall of the mixing tank. The flow meter collects the material conveying volume of the main material bin and the auxiliary material bin in real time. The controller automatically compares the actual conveying ratio with the set value, avoiding the mixing ratio error caused by manual observation of material level and manual speed adjustment, ensuring that the ratio of main material to auxiliary material remains stable within a reasonable range. A concentration sensor monitors the mixing state of the filling slurry in the mixing tank, ensuring the basic quality of the filling slurry and improving the strength stability of the filling material.

Description

Technical Field

[0001] This utility model relates to the field of mining engineering equipment technology, and in particular to an intelligent control device for mine filling. Background Technology

[0002] The underground voids formed after mining need to be filled by using materials such as tailings, cement, and aggregates to solve the risk of surface subsidence, improve resource recovery rate, and realize the recycling of waste. Mining filling control devices focus on this scenario and need to be adapted to the complex underground environment of mines, such as explosion-proof, dust-proof, and high humidity, and meet the core industry development requirements of "safety, efficiency, and green".

[0003] Traditional filling devices rely on manual observation of the material level in the silo and manual adjustment of the screw conveyor speed to control the mixing ratio. Manual judgment of the material level is prone to significant deviations, resulting in the actual material ratio being inconsistent with the set value. The cement content in the filling slurry, which plays a binding role, is insufficient, and the hardened filling structure is loose, resulting in a significant decrease in support capacity. This makes it difficult to withstand the pressure of the rock strata above the goaf, increasing safety risks. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] This solves the problem of difficult manual proportioning in existing equipment, avoids insufficient content for filling and binding, improves work quality, and reduces safety risks.

[0006] (II) Technical Solution

[0007] In view of the above-mentioned problems with the proportions, this utility model is proposed.

[0008] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a mine filling intelligent control device, including a base, a main control box fixedly connected to the top of the base, two conveying barrels mirror-distributed around the main control box fixedly connected to the top of the base, flange pipes communicating with the inner walls of the conveying barrels fixedly connected to the top of the two conveying barrels, flow meters fixedly connected to the inner walls of the flange pipes, a stirring barrel installed on the outer wall of the base, a stirring rod rotatably connected to the inner wall of the stirring barrel, and a liquid level sensor fixedly connected to the inner wall of the stirring barrel.

[0009] As a preferred embodiment of the intelligent control device for filling in mines according to this utility model, wherein: the top end of one flange pipe is fixedly connected to a main material bin communicating with the inner wall of the conveying barrel, the top end of the other flange pipe is fixedly connected to an auxiliary material bin communicating with the inner wall of the conveying barrel, a drive motor is fixedly connected to the outer wall of the conveying barrel, a rotating column is fixedly connected to the output end of the drive motor, and a spiral blade that is slidably connected to the inner wall of the conveying barrel is fixedly connected to the outer wall of the rotating column.

[0010] As a preferred embodiment of the intelligent control device for filling in mines according to this utility model, the outer wall of the conveying barrel is provided with a connecting pipe that communicates with the inner wall of the mixing barrel, the top of the mixing barrel is fixedly connected to a rotating motor, and the output end of the rotating motor is fixedly connected to a main shaft that is fixedly connected to the outer wall of the mixing rod.

[0011] As a preferred embodiment of the intelligent control device for filling in mines according to this utility model, the bottom end of the mixing tank is provided with a discharge port, the inner wall of the discharge port is fixedly connected with a concentration sensor, the bottom end of the mixing tank is fixedly connected with a base in contact with the ground, and the bottom end of the discharge port is fixedly connected with a grouting pipe.

[0012] As a preferred embodiment of the intelligent control device for mine filling according to this utility model, a pressure sensor is fixedly connected to the inner wall of the grouting pipe, a PLC controller is installed inside the main control box, the input end is connected to a flow meter, a concentration sensor, and a pressure sensor, and the output end is connected to a drive motor and a rotating motor of the stirring rod.

[0013] As a preferred embodiment of the intelligent control device for filling in mines according to this utility model, the base has four mounting holes at its top edge, a shock-absorbing pad is mounted on the base, a housing is fixedly connected to the outer wall of the drive motor, and an operating screen is fixedly connected to the outer wall of the main control box.

[0014] The beneficial effects of this utility model are:

[0015] 1. The material conveying volume of the main material bin and auxiliary material bin is collected in real time by the flow meter. After the data is transmitted to the PLC controller in the main control box, the controller will automatically compare the actual conveying ratio with the set value. If there is a deviation, the frequency of the corresponding conveying barrel drive motor will be reduced immediately. If the auxiliary material is insufficient, its motor frequency will be increased. No manual judgment and adjustment are required throughout the process, avoiding the ratio error caused by manual observation of material level and manual speed adjustment. The ratio of main material and auxiliary material is always kept within a reasonable range. The concentration sensor monitors the mixing state of the filling slurry in the mixing tank. When the concentration is low and the material is not mixed evenly, the controller will synchronously increase the rotation speed of the stirring rod motor. By increasing the stirring force, the material is ensured to be mixed evenly, which guarantees the basic quality of the filling slurry, reduces the uncertainty caused by manual intervention, and improves the strength stability of the filling material.

[0016] 2. The pressure sensor inside the grouting pipe tracks the grouting pressure in real time. When the pressure approaches the pipeline's pressure resistance limit, the controller immediately reduces the material conveying capacity of the conveying tank, curbing the continuous rise in pressure from the source and preventing the pipeline from rupturing due to overload. The shock-absorbing pad installed at the top of the base reduces the impact of vibration from a physical perspective. It can buffer the equipment vibration generated by the operation of the drive motor and stirring motor, and resist the external vibration of the underground environment. It can prevent vibration from causing the pressure sensor, flow meter and other precision components to detect inaccurate data, such as false pressure reports. It can also prevent the controller in the main control box from becoming loose due to vibration, ensuring that the control logic is always reliable and improving the safety of mining filling operations. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the installation structure of the mixing tank of this utility model.

[0020] Figure 3 This is a schematic diagram of the installation structure of the flow meter of this utility model.

[0021] Figure 4 This is a schematic diagram of the spiral blade installation structure of this utility model.

[0022] Figure 5 This is a schematic diagram of the installation structure of the stirring rod of this utility model.

[0023] Explanation of reference numerals in the attached diagram: 1. Base; 2. Main control box; 3. Operation panel; 4. Main material bin; 5. Auxiliary material bin; 6. Conveying tank; 7. Connecting pipe; 8. Mixing tank; 9. Shock-absorbing pad; 10. Flange pipe; 11. Flow meter; 12. Outer shell; 13. Discharge port; 14. Grouting pipe; 15. Rotating column; 16. Spiral blade; 17. Liquid level sensor; 18. Stirring rod; 19. Base; 20. Concentration sensor; 21. Pressure sensor. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Example 1

[0026] Reference Figures 1-4 This is the first embodiment of the present invention, which provides a mining filling intelligent control device, including a base 1, a main control box 2 fixedly connected to the top of the base 1, two conveying barrels 6 mirror-distributed around the main control box 2 fixedly connected to the top of the base 1, flange pipes 10 communicating with the inner wall of the two conveying barrels 6 fixedly connected to the top of the two conveying barrels 6, a flow meter 11 fixedly connected to the inner wall of the flange pipes 10, a stirring tank 8 installed on the outer wall of the base 1, a stirring rod 18 rotatably connected to the inner wall of the stirring tank 8, and a liquid level sensor 17 fixedly connected to the inner wall of the stirring tank 8.

[0027] One flange pipe 10 is fixedly connected to the top end of a main material bin 4 that communicates with the inner wall of the conveying barrel 6, and the other flange pipe 10 is fixedly connected to the top end of an auxiliary material bin 5 that communicates with the inner wall of the conveying barrel 6. A drive motor is fixedly connected to the outer wall of the conveying barrel 6, and a rotating column 15 is fixedly connected to the output end of the drive motor. A spiral blade 16 that is slidably connected to the inner wall of the conveying barrel 6 is fixedly connected to the outer wall of the rotating column 15.

[0028] The outer wall of the conveying tank 6 is provided with a connecting pipe 7 that communicates with the inner wall of the mixing tank 8. A rotating motor is fixedly connected to the top of the mixing tank 8, and the output end of the rotating motor is fixedly connected to a main shaft that is fixedly connected to the outer wall of the mixing rod 18.

[0029] During use, the operator first sets the target ratio of main material and auxiliary material on the operation screen 3 of the main control box 2, such as the ratio of tailings and cement. After starting the device, the main material in the main material bin 4 and the auxiliary material in the auxiliary material bin 5 enter the corresponding conveying bin 6 through the flange pipe 10. The drive motor on the outer wall of the conveying bin 6 starts, driving the rotating column 15 and the spiral blade 16 to rotate, pushing the material to the connecting pipe 7 and sending it into the mixing tank 8.

[0030] During this process, the flow meter 11 on the inner wall of the flange pipe 10 collects the conveying volume of the main material and auxiliary material in real time and transmits the data to the PLC controller inside the main control box 2. When the controller detects a deviation between the actual conveying volume and the set ratio, such as too much main material or too little auxiliary material, it will automatically adjust the frequency of the drive motor of the corresponding conveying bucket 6. If the auxiliary material is insufficient, the controller increases the frequency of the drive motor below the auxiliary material bin 5 to speed up the rotation of the spiral blade 16 and increase the auxiliary material conveying volume. If the main material is excessive, the controller decreases the frequency of the drive motor below the main material bin 4 to reduce the main material conveying volume, so that the ratio of the main material and auxiliary material is always kept within the set reasonable range.

[0031] Meanwhile, the concentration sensor 20 at the discharge port 13 at the bottom of the mixing tank 8 continuously monitors the concentration of the mixed materials. When the concentration is detected to be too low, the concentration sensor 20 feeds the signal back to the controller. The controller then increases the frequency of the rotating motor at the top of the mixing tank 8, which speeds up the rotation of the stirring rod 18, enhances the stirring force, ensures that the materials are fully and evenly mixed, and increases the concentration of the filling slurry to a suitable level.

[0032] Example 2

[0033] Reference Figures 1-5 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that: the bottom end of the mixing tank 8 is provided with a discharge port 13, the inner wall of the discharge port 13 is fixedly connected with a concentration sensor 20, the bottom end of the mixing tank 8 is fixedly connected with a base 19 that is in contact with the ground, and the bottom end of the discharge port 13 is fixedly connected with a grouting pipe 14.

[0034] A pressure sensor 21 is fixedly connected to the inner wall of the grouting pipe 14. A PLC controller is installed inside the main control box 2. The input end is connected to the flow meter 11, the concentration sensor 20, and the pressure sensor 21. The output end is connected to the drive motor and the rotating motor of the stirring rod 18.

[0035] Four mounting holes are provided on the top edge of the base 1. A shock-absorbing pad 9 is installed on the top of the base 1. The outer wall of the drive motor is fixedly connected to the outer shell 12. The outer wall of the main control box 2 is fixedly connected to the operation panel 3.

[0036] During use, the pressure sensor 21 on the inner wall of the grouting pipe 14 monitors the grouting pressure in the pipe in real time. The monitoring data is transmitted to the PLC controller of the main control box 2 in real time. When the controller detects that the grouting pressure exceeds the set safety threshold, it will immediately issue an instruction to reduce the frequency of the drive motors of the two conveying barrels 6, so that the speed of the spiral blades 16 is slowed down, reducing the amount of main material and auxiliary material conveyed to the mixing barrel 8. As the material in the mixing barrel 8 decreases, the amount of filling grout entering the grouting pipe 14 through the discharge port 13 decreases accordingly, and the grouting pressure decreases accordingly, avoiding the rupture of the grouting pipe 14 or other safety accidents due to excessive pressure.

[0037] In addition, a shock-absorbing pad 9 is installed at the top of the base 1. The outer casing 12 of the drive motor on the outer wall of the conveying tank 6 and the main control box 2 are all fixed to the base 1 through these mounting holes. When the drive motor, the rotating motor of the stirring tank 8 and other equipment generate vibrations, or when vibrations are transmitted from the underground environment, the shock-absorbing pad 9 can effectively absorb and buffer these vibrations, reduce the impact of vibrations on precision detection components such as the flow meter 11, the concentration sensor 20, and the pressure sensor 21, and avoid detection errors due to vibrations. At the same time, it can also protect the PLC controller inside the main control box 2, prevent vibrations from causing loose circuit connections or component damage, and ensure the stable operation and control accuracy of the entire device.

[0038] The remaining structure is the same as that in Example 1.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A mine filling intelligent control device, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a main control box (2). The top of the base (1) is fixedly connected to two conveying barrels (6) that are mirror-distributed with the main control box (2) as the center. The top of the two conveying barrels (6) is fixedly connected to a flange pipe (10) that communicates with the inner wall of the conveying barrel (6). The inner wall of the flange pipe (10) is fixedly connected to a flow meter (11). The outer wall of the base (1) is equipped with a stirring tank (8). The inner wall of the stirring tank (8) is rotatably connected to a stirring rod (18). The inner wall of the stirring tank (8) is fixedly connected to a liquid level sensor (17).

2. The intelligent control device for mine filling according to claim 1, characterized in that: One of the flange pipes (10) is fixedly connected to a main material bin (4) communicating with the inner wall of the conveying barrel (6) at its top end, and the other flange pipe (10) is fixedly connected to an auxiliary material bin (5) communicating with the inner wall of the conveying barrel (6) at its top end. A drive motor is fixedly connected to the outer wall of the conveying barrel (6), and a rotating column (15) is fixedly connected to the output end of the drive motor. A spiral blade (16) is fixedly connected to the outer wall of the rotating column (15) and is slidably connected to the inner wall of the conveying barrel (6).

3. The intelligent control device for mine filling according to claim 1, characterized in that: The outer wall of the conveying tank (6) is provided with a connecting pipe (7) that communicates with the inner wall of the mixing tank (8). The top of the mixing tank (8) is fixedly connected to a rotating motor, and the output end of the rotating motor is fixedly connected to a main shaft that is fixedly connected to the outer wall of the mixing rod (18).

4. The intelligent control device for mine filling according to claim 1, characterized in that: The bottom end of the mixing tank (8) is provided with a discharge port (13), the inner wall of the discharge port (13) is fixedly connected with a concentration sensor (20), the bottom end of the mixing tank (8) is fixedly connected with a base (19) in contact with the ground, and the bottom end of the discharge port (13) is fixedly connected with a grouting pipe (14).

5. The intelligent control device for mine filling according to claim 4, characterized in that: A pressure sensor (21) is fixedly connected to the inner wall of the grouting pipe (14). A PLC controller is installed inside the main control box (2). The input end is connected to the flow meter (11), the concentration sensor (20), and the pressure sensor (21). The output end is connected to the drive motor and the rotating motor of the stirring rod (18).

6. The intelligent control device for mine filling according to claim 2, characterized in that: The base (1) has four mounting holes at its top edge. A shock-absorbing pad (9) is installed at the top of the base (1). The outer wall of the drive motor is fixedly connected to a housing (12). The outer wall of the main control box (2) is fixedly connected to an operation screen (3).

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