A kind of open-pit mine slope mining roadway filling blocking vehicle

Abstract

The utility model discloses an open -pit mine slope mining roadway filling plugging car, technical scheme is as follows: including hydraulic drive chassis, this hydraulic drive chassis front end is provided with the plugging cover plate that adjusts through the turnover oil jar, and the both sides of plugging cover plate are fixed with a plurality of sliding grooves'sliding guide rail, and the sliding groove is slidably connected with the support stop bar for plugging the mining mouth and the clearance between plugging cover plate side part, and a plurality of support stop bars are inserted and are set through the corresponding telescopic oil jar, and the telescopic oil jar is controlled connection through hydraulic control system, the utility model passes through the cooperation and use of adjustable plugging cover plate and telescopic support stop bar of hydraulic drive chassis, has realized the quick, accurate plugging of mining mouth, has solved the problem that the traditional manual plugging exists and has improved the plugging operation efficiency, reduced the manual cost, shortened the engineering cycle, reduced the advantage such as filling material waste.

Description

Technical Field

[0001] This utility model relates to the field of mining backfilling and sealing, specifically to a backfilling and sealing vehicle for open-pit mine slope mining roadways. Background Technology

[0002] After open-pit mining is completed, a slope will form at its edge, and a coal seam will be located at the bottom of the slope. To improve the efficiency of coal mining, a special tunneling machine is usually used in conjunction with a conveyor to mine coal in 300-500-meter tunnels along the slope at intervals of 5-10 meters.

[0003] After mining operations are completed, backfilling is required in the mining roadway to ensure the stability of the slope structure. Gangue concrete mixture is typically used as the backfill material. Traditionally, the backfilling process involves manually installing sealing plates at the mining opening of the slope mining roadway. These sealing plates are typically 3.5 meters wide and 6 meters long. However, this manual sealing method has significant drawbacks: firstly, an unavoidable installation gap exists between the sealing plate and the mining opening; secondly, using drill rods for fixing makes complete sealing difficult. During backfilling, high-pressure backfill material leaks significantly through these gaps, forcing workers to perform secondary sealing. Due to the high backfilling pressure, this remedial sealing operation is extremely time-consuming, taking anywhere from 2-3 days to 5-6 days to complete, severely impacting overall sealing efficiency, increasing labor costs, extending the project cycle, and wasting backfill material. Furthermore, the quality of manual sealing is difficult to guarantee, posing safety hazards. Therefore, existing technologies urgently need improvement to address these issues. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a filling and sealing vehicle for open-pit mine slope mining roadways.

[0005] This utility model is achieved through the following technical solution:

[0006] This application provides a filling and sealing vehicle for open-pit mine slope mining roadways. The technical solution is as follows: it includes a hydraulically driven chassis, with a sealing cover plate that is adjusted by a tilting cylinder at the front end of the chassis. Several sliding guide rails with grooves are fixed on both sides of the sealing cover plate. Support rods for sealing the gap between the mining opening and the side of the sealing cover plate are slidably connected in the grooves. The multiple support rods are connected and extended by corresponding telescopic cylinders. The telescopic cylinders are controlled and connected by a hydraulic control system.

[0007] Furthermore, this application also proposes that the hydraulic control system includes a hydraulic station and a controller. The hydraulic station is equipped with a hydraulic pump and a solenoid valve assembly connected by pipelines. The solenoid valve assembly is driven by a corresponding telescopic cylinder, a hydraulic motor of a hydraulic drive chassis, and a stabilizing cylinder installed at the rear, through an oil line. The controller is connected to the solenoid valve assembly for control and wirelessly connected to a wireless remote controller.

[0008] Furthermore, this application also proposes that several support rods on both sides of the sealing cover are inserted into the gap between the sealing cover and the side of the mining opening to form an integral support frame, and a layer of sealing rubber is placed on the inner side of the forward-extending support rod.

[0009] Furthermore, this application also proposes that the sliding guide rail is vertically connected to the sealing cover plate, and a mounting bracket for fixing the telescopic cylinder is connected to one side of the end of the sliding guide rail, and the piston rod of the telescopic cylinder is connected to the end of the support rod.

[0010] Furthermore, this application also proposes that the top of the sealing cover is provided with a conveying port for conveying filling material.

[0011] Compared with existing technologies, the advantages of this utility model are: by using a hydraulically driven chassis, an adjustable sealing cover plate and a telescopic support rod in combination, this utility model achieves rapid and precise sealing of the mining opening, solving the problems of large gaps and poor sealing performance in traditional manual sealing. It has the advantages of improving sealing operation efficiency, reducing labor costs, shortening the project cycle and reducing waste of filling materials. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the blocking vehicle of this utility model;

[0013] Figure 2 yes Figure 1 Another perspective view;

[0014] Figure 3 This is a schematic diagram of a practical hydraulic control system;

[0015] Figure 4 This is a schematic diagram of the usage status of this utility model;

[0016] In the diagram: 1. Hydraulic drive chassis; 101. Hydraulic motor; 2. Sealing cover plate; 3. Tilting cylinder; 4. Sliding guide rail; 5. Slide groove; 6. Mounting bracket; 7. Support rod; 8. Telescopic cylinder; 9. Hydraulic station; 10. Hydraulic pump; 11. Solenoid valve assembly; 12. Controller; 13. Stabilizing cylinder; 14. Wireless remote control; 15. Filling material; 16. Mining port; 17. Sealing rubber layer. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments:

[0018] like Figure 1-4 As shown, this application proposes a filling and sealing vehicle for open-pit mine slope mining roadways, including a hydraulically driven chassis. A sealing cover plate, which is adjusted by a tilting cylinder, is provided at the front end of the hydraulically driven chassis. Several sliding guide rails with grooves are fixed on both sides of the sealing cover plate. Supporting rods for sealing the gap between the mining opening and the side of the sealing cover plate are slidably connected in the grooves. The multiple supporting rods are connected and extended by corresponding telescopic cylinders. The telescopic cylinders are controlled and connected by a hydraulic control system.

[0019] The hydraulically driven chassis employs a tracked walking mechanism, with its hydraulic motor driving the tracks via a reducer to enable the blocking vehicle to move across complex terrain. The tilting cylinder is preferably a double-acting hydraulic cylinder, with its cylinder body hinged to the front of the chassis and its piston rod hinged to the center of the back of the blocking cover, thus allowing for a 0-150 degree tilting angle adjustment. The sliding guide rail is made of C-shaped steel with internal grooves for sliding connection with the support rod. The support rod is made of strip-shaped inserts, designed to be 1.2-1.8 meters long and 2-3 cm thick. The telescopic cylinder is a multi-stage sleeve-type hydraulic cylinder with a maximum stroke of 1200 mm; the piston rod end is rigidly connected to the support rod.

[0020] This technical solution achieves rapid equipment positioning through a hydraulically driven chassis and controls the opening and closing angle of the sealing cover using a tilting cylinder. Once the cover covers the mining opening, a telescopic cylinder moves the support rod forward along a sliding guide rail until the side face of the rod is firmly against the roadway sidewall. Multiple sets of support rods move synchronously to form a continuous support surface, effectively sealing the three-dimensional gap between the cover and the roadway while improving the stability of the mining opening. Compared to existing technologies, this device replaces manual sealing with mechanized operation. The centralized control of the hydraulic system allows for coordinated action of all actuators, completing the sealing work that traditionally takes 2-6 days manually within 30 minutes, significantly improving the efficiency of roadway filling operations.

[0021] Furthermore, this application also proposes that the hydraulic control system includes a hydraulic station and a controller. The hydraulic station is equipped with a hydraulic pump and a solenoid valve group connected by pipelines. The solenoid valve group is driven by a corresponding telescopic cylinder, a hydraulic motor of the hydraulic drive chassis, and a stabilizing cylinder installed at the rear, through an oil pipe. The controller is connected to the solenoid valve group for control and wirelessly connected to a wireless remote controller.

[0022] The hydraulic pump can be a gear pump or a piston pump, with a rated pressure range of 16-25MPa and a flow rate range of 20-40L / min. The solenoid valve assembly contains multiple three-position four-way solenoid directional valves, each controlling the direction of movement of one actuator. The controller is implemented using a PLC or microcontroller, with a built-in wireless communication module supporting 2.4GHz or 5.8GHz frequency bands, establishing two-way communication with a handheld wireless remote control. Stabilizing cylinders are installed on both sides of the rear of the equipment, with a cylinder diameter of 80-100mm and a stroke of 500-800mm, used to maintain equipment stability during operation. The hydraulic motor is a cycloidal motor or a piston motor, with an output torque of 200-300N·m, and an adjustable chassis travel speed of 0-5km / h.

[0023] This technical solution achieves coordinated operation of multiple actuators through integrated hydraulic control. The solenoid valve group centrally controls the extension and retraction of each cylinder and the chassis movement, while the controller precisely adjusts hydraulic flow and pressure based on wireless commands. Specifically, operators can simultaneously control the flipping of the sealing cover, the extension and retraction of the support rod, and the movement of the equipment via a wireless remote control, avoiding the need for multiple people to work together in traditional manual sealing. Furthermore, the automatic adjustment function of the stabilizing cylinder effectively solves the problem of incomplete sealing caused by equipment shaking during filling operations. The sealing rubber layer is evenly compressed after the support frame is formed, significantly reducing filling material leakage. Thus, the entire system reduces the manual sealing operation, which originally required several days, to 4-6 hours, while improving sealing reliability.

[0024] Furthermore, this application also proposes that several support rods on both sides of the sealing cover are inserted into the gap between the sealing cover and the side of the mining opening to form an integral support frame, and a layer of sealing rubber is placed on the inner side of the forward-extending support rod.

[0025] The sealing rubber layer is preferably made of wear-resistant nitrile rubber or polyurethane material with a thickness of 10-20mm. It is laid on both sides of the mining opening before sealing. Under the pressure of the filling material, it is pressed tightly against the joint between the support rod and the side wall of the mining opening to prevent material leakage.

[0026] Therefore, this technical solution effectively solves the problem of filling material leakage through the cooperation of the support rod and the sealing rubber layer. The support rod forms a rigid support frame to withstand the lateral pressure of the filling material; the sealing rubber layer fills the microscopic gap between the support rod and the mining opening, achieving an elastic seal. Compared with existing technologies, this solution eliminates the need for manual secondary sealing, significantly improving sealing efficiency. Furthermore, the elastic deformation characteristics of the sealing rubber layer can adapt to the irregular shape of the mining opening, ensuring a long-term sealing effect.

[0027] Furthermore, this application also proposes that the sliding guide rail is vertically connected to the sealing cover plate, and a mounting bracket for fixing the telescopic cylinder is connected to one side of the end of the sliding guide rail, and the piston rod of the telescopic cylinder is connected to the end of the support rod.

[0028] The sliding guide rail is made of high-strength alloy steel and is vertically fixed to the sealing cover plate by welding or bolting. The mounting bracket is an L-shaped steel plate structure, fixed to the side of the sliding guide rail end by welding, and has cylinder mounting holes on the mounting bracket. The telescopic cylinder is a double-acting hydraulic cylinder, and the piston rod end is hinged to the end connection hole of the support rod via a pin. As a preferred embodiment, the sliding guide rail width is 20-30cm, evenly distributed along the length of the 6-meter-long sealing cover plate. The end of the support rod has a connecting lug, which is connected to the piston rod via a pin. Reinforcing ribs can be added at the connection between the mounting bracket and the sliding guide rail to improve structural strength.

[0029] This technical solution achieves more stable and reliable extension and retraction of the support rod by arranging the sliding guide rail perpendicularly to the sealing cover plate and using a dedicated mounting bracket at the end of the guide rail to fix the telescopic cylinder. Specifically, the vertically arranged sliding guide rail ensures that the support rod moves in a straight line, preventing deviation; the dedicated mounting bracket provides a stable support foundation for the cylinder, solving the structural instability problem of traditional manual fixing methods. As a result, the support rod can accurately insert into the gap on the side of the mining opening, effectively preventing leakage of the filling material and significantly improving the efficiency and quality of the sealing operation. Compared with existing technologies, this solution replaces manual drill rod fixing with a mechanized telescopic mechanism, which is not only simpler to operate but also provides a more reliable sealing effect.

[0030] Furthermore, this application also proposes to provide a conveying port for transporting filling material at the top of the sealing cover. This conveying port can be directly connected to the filling equipment to realize the continuous transport of filling material from the top of the sealing vehicle into the roadway. In specific implementation, the conveying port can adopt a circular opening structure, with the opening diameter or side length preferably being 100-150mm, and a flange is provided at the edge of the opening for connecting the conveying pipeline.

[0031] This technical solution integrates a conveying port into the sealing cover, enabling simultaneous sealing and filling processes. Specifically, after the sealing cover is sealed and fixed to the mining opening by the support rod, the filling equipment can directly pump filling material into the roadway through the conveying port, eliminating the need for manual secondary sealing. This solves the problem in existing technologies where gaps between the sealing plate and the mining opening cause filling material leakage, requiring repeated manual sealing. Compared to existing technologies, this solution significantly improves filling efficiency, reducing the single operation time from 2-6 days to less than 8 hours. Furthermore, the standardized design of the conveying port allows for compatibility with different models of filling equipment, enabling rapid connection.

[0032] The implementation principle of the open-pit mine slope mining roadway filling and sealing vehicle in this application embodiment is as follows:

[0033] When sealing the opening 16, first fix the sealing rubber layers on both sides inside the opening 16 and against its side walls. Then, use the wireless remote controller 14 to control the hydraulic drive chassis 1 to move the sealing cover plate 2 to the opening 16 and fine-tune the specific position so that the sealing cover plate 2 is facing the opening 16. Operate the control cylinder 3 to move forward, flip the sealing cover plate 2 and seal it on the opening 16. Extend the stabilizing cylinder 13 at the tail of the hydraulic drive chassis 1 to achieve stable fixation of the hydraulic drive chassis 1.

[0034] After reaching a stable position, operate the telescopic cylinders 8 one by one to extend the support rods 7 forward along the slide groove 5. Continue until the front end of the support rod 7 extends 1.2 meters into the opening 16, with the extended side face of the support rod 7 tightly abutting against the roadway sidewall to form a stable support. This effectively seals the three-dimensional gap between the cover plate and the roadway while improving the stability of the opening. After sealing, the filling system pressurizes and sends the filling binder along the pipeline and the top delivery port of the sealing cover plate into the closed mining roadway for filling. After filling, allow the filling material to initially set for 6 hours. Then, operate the telescopic cylinders 8 to retract the support rods 7 along the slide groove 5, disengaging them from the edge of the filling material inside the opening 16. After complete disengagement, operate the tilting cylinder 3 to tilt the sealing cover plate 2 away from the opening 16, and then perform cyclic sealing on adjacent unsealed openings 16.

[0035] 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 claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A filling and sealing vehicle for open-pit mine slope mining roadways, characterized in that: The system includes a hydraulically driven chassis (1), with a sealing cover plate (2) at the front end of which is adjusted by a tilting cylinder (3). Several sliding guide rails (4) with grooves (5) are fixed on both sides of the sealing cover plate (2). Support rods (7) for sealing the gap between the mining opening (16) and the side of the sealing cover plate (2) are slidably connected in the grooves (5). The multiple support rods (7) are connected and extended by corresponding telescopic cylinders (8). The telescopic cylinders (8) are controlled and connected by a hydraulic control system.

2. The open-pit mine slope mining roadway filling and sealing vehicle according to claim 1, characterized in that: The hydraulic control system includes a hydraulic station (9) and a controller (12). The hydraulic station (9) is equipped with a hydraulic pump (10) and a solenoid valve group (11) connected by pipelines. The solenoid valve group (11) is connected to the corresponding telescopic cylinder (8), the hydraulic motor (101) of the hydraulic drive chassis (1), and the stabilizing cylinder (13) installed at the tail through oil pipes. The controller (12) is connected to the solenoid valve group (11) for control and is wirelessly connected to the wireless remote controller (14).

3. The open-pit mine slope mining roadway filling and sealing vehicle according to claim 1, characterized in that: Several support rods (7) on both sides of the sealing cover plate (2) are inserted into the gap between the sealing cover plate (2) and the side of the mining opening (16) to form an integral support frame. A layer of sealing rubber (17) is placed inside the support rods (7).

4. The open-pit mine slope mining roadway filling and sealing vehicle according to claim 1, characterized in that: The sliding guide rail (4) is vertically connected to the sealing cover plate (2). One side of the end of the sliding guide rail (4) is connected to a mounting bracket (6) for fixing the telescopic cylinder (8). The piston rod of the telescopic cylinder (8) is connected to the end of the support rod (7).

5. The open-pit mine slope mining roadway filling and sealing vehicle according to claim 1, characterized in that: The top of the sealing cover plate (2) is provided with a conveying port for conveying filling material (15).

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