Automatic filling device for mine pit

Abstract

The utility model relates to the technical field of mine pit treatment, and particularly discloses an automatic filling device for a mine pit, which comprises a material manufacturing bin, a plurality of material conveying pipelines and a controller, the material conveying pipelines are sequentially connected end to end, a support frame is arranged at the outer end of the bottom of the material manufacturing bin, the bottom of the material manufacturing bin is further rotatably connected with a stirring mechanism, and a feeding mechanism is arranged at the top of the material manufacturing bin. A sealing connecting piece is arranged between every two adjacent material conveying pipelines, an anti-blocking mechanism is installed at the end, away from the material manufacturing bin, of any material conveying pipeline, each anti-blocking mechanism comprises a clamping ring and a material cutting knife plate, and a booster pump electrically connected with the controller is further arranged between every two adjacent material conveying pipelines; and a control mechanism which is electrically connected and controlled by a controller is further mounted between the conveying pipeline and the material making bin, so that the problem that the normal operation of mine pit filling is affected due to the fact that the pipeline is relatively long during traditional mine pit filling and the paste is easy to block during transportation in the pipeline is solved.

Description

Technical Field

[0001] The present application relates to the technical field of mine pit processing, and specifically discloses an automatic filling device for mine pits. Background Art

[0002] Mining activities often cause the inside of the mountain to be hollowed out, forming a mine pit. In order to prevent surface subsidence, the mine void area needs to be filled. Full tailings paste filling is a commonly used filling method. Full tailings paste filling is to use mechanical equipment to mix paste and cement into the mine pit. After dehydration and hardening, it will in turn support the mine mountain, thereby achieving the purpose of preventing surface subsidence.

[0003] The existing paste pumping filling system completes the filling operation from the surface through filling wells, filling boreholes, and main filling tunnels to the mining site. The entire pipeline has many turns and is long, which makes it easy for the paste to be blocked during transportation in the pipeline, affecting the normal operation of the paste filling system. Therefore, in view of this, the inventor provides an automatic filling device for mines to solve the above problems. Utility Model Content

[0004] The utility model aims to solve the problem that the pipeline in the traditional pit filling is long, which makes the paste easy to be blocked during transportation in the pipeline, thus affecting the normal operation of the pit filling.

[0005] In order to achieve the above-mentioned purpose, the basic scheme of the utility model provides an automatic filling device for a mine, including a material making bin for making paste, a plurality of material delivery pipelines and a controller which are connected end to end in sequence between the bottom side of the material making bin and the mine, a support frame is provided at the outer end of the bottom of the material making bin, and a stirring mechanism for stirring the paste raw material in the material making bin is rotatably connected to the bottom of the material making bin, a feeding mechanism for adding the paste raw material and water into the material making bin is provided at the top of the material making bin, a sealing connector is provided between two adjacent material delivery pipelines, an anti-blocking mechanism is installed at one end of any material delivery pipeline away from the material making bin, the anti-blocking mechanism includes a clamping ring clamped with one end of the material delivery pipeline and a cutting knife plate for cutting the paste in the material delivery pipeline which is provided at one end of the clamping ring close to the inner side of the material delivery pipeline, a booster pump electrically connected to the controller is also provided between the two adjacent material delivery pipelines, and a control mechanism which is electrically connected to the controller and is used to control the delivery flow rate of the paste is also installed between the material delivery pipeline and the material making bin.

[0006] The principles and effects of this basic solution are:

[0007] 1. The utility model is provided with a material preparation bin, a stirring mechanism and a feeding mechanism, so that the tailings paste for filling the mine pit can be prepared on site according to the progress of mining, thereby improving the working efficiency of mining.

[0008] 2. The utility model provides a controller, a control mechanism and a booster pump to facilitate the control of the output of the paste in the material preparation bin and the control of the delivery flow of the paste in the material delivery pipeline, so that the entire construction process from the production and output of the paste to the discharge into the mine for filling is automated and controllable, making the efficiency of mine filling higher.

[0009] 3. Compared with the prior art, the utility model provides a plurality of conveying pipelines connected end to end and provides a sealing connector and an anti-blocking mechanism between two connected conveying pipelines, which not only prevents the leakage of tailings paste during the conveying process and avoids the loss of materials, but also can cut the tailings paste in the conveying pipeline in a point-by-point manner for multiple times through the cutting knife plate, so as to avoid the tailings paste in the conveying pipeline from agglomerating and causing pipeline blockage, which is conducive to ensuring the normal conveying work in the conveying pipeline and solves the problem that the pipeline is long during traditional mine filling, which makes the paste easy to be blocked during transportation in the pipeline, affecting the normal operation of the mine filling.

[0010] Furthermore, the support frame includes a bottom plate and a plurality of support columns disposed between the bottom plate and the outer end of the bottom side of the material making bin, the stirring mechanism includes a stirring shaft rotatably connected to the bottom of the material making bin and a stirring side rod disposed on the peripheral side of the stirring shaft, and a driving member for driving the stirring shaft to rotate is disposed between the bottom plate and the bottom of the material making bin. By providing the bottom plate and the support columns, it is convenient to provide structural support for the material making bin, and the material making bin is supported overhead, which makes the overall structure more stable and provides sufficient installation and accommodation space for the installation of the driving member. By using the stirring side rod, it is convenient to accelerate the mixing of the tailings paste raw material and water, thereby improving the production efficiency of the tailings paste.

[0011] Furthermore, the stirring side rods include a first stirring rod, a second stirring rod and a third stirring rod which are equidistantly arranged vertically on the side of the stirring shaft, the vertical projections of the first stirring rod, the second stirring rod and the third stirring rod are evenly distributed in a circle, and the bottom sides of the first stirring rod, the second stirring rod and the third stirring rod are all provided with a number of evenly arranged stirring vertical rods, and the bottom ends of all stirring vertical rods are located above the inner bottom wall of the material preparation bin. By arranging the first stirring rod, the second stirring rod and the third stirring rod to be distributed circumferentially in space and to be equidistantly layered on the side of the stirring shaft, while meeting the requirements for stirring the paste raw materials inside the material preparation bin, the structural gravity and volume of the overall device can be reduced, the load-bearing burden of the support frame can be reduced, and the work efficiency can be improved. By arranging the stirring vertical rods, the stirring effect is better.

[0012] Furthermore, a reinforcing crossbeam is provided at the middle of the top of the material making bin, and the top of the stirring shaft is rotatably connected to the reinforcing crossbeam. The feeding mechanism includes a plurality of water inlet pipes installed on the top of the reinforcing crossbeam and used to add water into the material making bin, and feed pipes symmetrically installed on both sides of the top of the material making bin and used to add paste raw materials into the material making bin. By providing the reinforcing crossbeam, it is not only convenient to further fix the stirring shaft, but also convenient to install the water inlet pipe and the feed pipe, making it more convenient to add water and raw materials into the material making bin.

[0013] Furthermore, the control mechanism includes a feed valve installed on the feed pipe, a water adding valve installed on the water inlet pipe, a discharge valve installed at the connection end of the material conveying pipeline connected to the material preparation bin, and pipeline valves installed at one end of the material conveying pipeline away from the material preparation bin. The feed valve, water adding valve, discharge valve and pipeline valve are all electrically connected to the controller. By setting the controller to control the electrical connection of each valve, the operation and control of the overall material preparation and conveying structure are more convenient, and the mine filling construction with electric control automation is realized.

[0014] Furthermore, the cutting blade includes a plurality of blades arranged crosswise and gathered on one axis, and one end of each blade is fixedly connected to the end surface of the clamp ring. By providing a plurality of blades, it is not only convenient to prevent the paste in the feeding pipeline from being blocked, but also to avoid affecting the feeding work in the feeding pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 A structural front view of an automatic filling device for a mine proposed in an embodiment of the present application is shown;

[0017] Figure 2 A structural stereogram of an anti-blocking mechanism of an automatic filling device for a mine pit proposed in an embodiment of the present application is shown;

[0018] Figure 3 A schematic structural diagram of a stirring mechanism of an automatic filling device for a mine pit proposed in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0019] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0020] The figure marks in the drawings of the specification include: material preparation bin 1, material delivery pipeline 2, clamping ring 3, blade 4, bottom plate 5, support column 6, stirring shaft 7, drive motor 8, first stirring rod 9, second stirring rod 10, third stirring rod 11, stirring vertical rod 12, reinforcement beam 13, water inlet pipe 14, feed pipe 15, feed valve 16, water adding valve 17, pipeline valve 18, main discharge valve 19, booster pump 20, sealing connector 21, and reduction gear set 22.

[0021] An automatic filling device for a mine, for example Figure 1 As shown: it includes a material preparation bin 1 for making paste, a plurality of material delivery pipelines 2 and a controller which are connected end to end in sequence and are arranged between the bottom side of the material preparation bin 1 and the mine pit. The controller includes but is not limited to a PLC controller. When determining the mining location of a certain mining area, the material preparation bin 1 needs to be built at a suitable distance from the mining area. A support frame is provided at the outer end of the bottom of the material preparation bin 1. The bottom of the material preparation bin 1 is also rotatably connected with a stirring mechanism for stirring the paste raw material in the material preparation bin 1. A feeding mechanism for adding paste raw material and water into the material preparation bin 1 is provided at the top of the material preparation bin 1. A sealing connector 21 is provided between two adjacent material delivery pipelines 2, wherein the sealing connector 21 includes but is not limited to an existing flange sealing structure.

[0022] like Figure 2 As shown, each feed pipe 2 is equipped with an anti-blocking mechanism at one end away from the feed silo 1, and the anti-blocking mechanism includes a clamping ring 3 clamped with the outlet end of the feed pipe 2 and a cutting blade plate provided at one end of the clamping ring 3 close to the inner side of the feed pipe 2 for cutting the paste in the feed pipe 2, wherein the cutting blade plate includes a plurality of blades 4 arranged crosswise and gathered on one axis, and one end of the blades 4 is fixedly connected to the end face of the clamping ring 3. Figure 1 As shown, a booster pump 20 electrically connected to the controller is provided between two adjacent material delivery pipelines 2, and a control mechanism electrically connected to the controller and used to control the delivery flow rate of the paste is installed between the material delivery pipeline 2 and the material preparation bin 1.

[0023] Among them, as shown in 1, the support frame includes a base plate 5 and a plurality of support columns 6 arranged between the base plate 5 and the outer end of the bottom side of the material making bin 1, the stirring mechanism includes a stirring shaft 7 rotatably connected to the bottom of the material making bin 1 and a stirring side rod arranged on the peripheral side of the stirring shaft 7, and a driving member for driving the stirring shaft 7 to rotate is provided between the base plate 5 and the bottom of the material making bin 1. The driving member includes a driving motor 8 detachably mounted on the base plate 5 and located below the material making bin 1 and a reduction gear set 22 installed between the output end of the driving motor 8 and the stirring shaft 7. The driving motor 8 is electrically connected to the controller, wherein the reduction ratio of the reduction gear set 22 includes but is not limited to 4:1.

[0024] Among them, Figure 1 and Figure 3As shown, the stirring side rods include a first stirring rod 9, a second stirring rod 10 and a third stirring rod 11 which are vertically equidistantly arranged on the side of the stirring shaft 7, and the vertical projections of the first stirring rod 9, the second stirring rod 10 and the third stirring rod 11 are evenly distributed on the circumference, and the bottom sides of the first stirring rod 9, the second stirring rod 10 and the third stirring rod 11 are provided with a plurality of evenly arranged stirring vertical rods 12, and the bottom ends of all the stirring vertical rods 12 are located above the inner bottom wall of the material preparation bin 1.

[0025] Among them, Figure 1 As shown, a reinforcing beam 13 is provided in the middle of the top of the material preparation bin 1, and the top of the stirring shaft 7 is rotatably connected to the reinforcing beam 13. The feeding mechanism includes a water inlet pipe 14 installed on the top of the reinforcing beam 13 and used to add water into the material preparation bin 1, and a feeding pipe 15 symmetrically installed on both sides of the top of the material preparation bin 1 and used to add paste raw materials into the material preparation bin 1.

[0026] Among them, Figure 1 As shown, the control mechanism includes a feed valve 16 installed on the feed pipe 15, a water adding valve 17 installed on the water inlet pipe 14, a discharge main valve 19 installed at the connecting end of the feed pipeline 2 connected to the material making bin 1, and a pipeline valve 18 distributedly installed at one end of the feed pipeline 2 away from the material making bin 1. The feed valve 16, the water adding valve 17, the discharge main valve 19 and the pipeline valve 18 are all electrically connected to the controller.

[0027] In the specific implementation process of the present invention, when mining in a mining area is completed and the mine pit needs to be filled, an optimal laying route for the material conveying pipeline 2 is formulated between the material preparation bin 1 and the mine pit to be filled, and the material conveying pipeline 2 is installed and laid according to the laying route. After the installation is completed, the filling construction of the mine pit is implemented.

[0028] When the filling construction of the mine is being carried out, the controller controls the water adding valve 17 and the feed valve 16 to be opened, and the pipeline valve 18 and the main discharge valve 19 are in a closed state, and the raw materials and water for making the tailings paste are added to the material making bin 1. In this process, it is necessary to energize the drive motor 8, and the drive motor 8 drives the stirring shaft 7 and the stirring side rod to rotate in the material making bin 1 through the reduction gear set 22, so that while adding raw materials and water, the raw materials and water added into the material making bin 1 are also stirred. When the raw materials and water reach the expected input amount, the controller controls the water adding valve 17 and the feed valve 16 to be closed. At this time, the drive motor 8 should run at a low speed to continue and continuously stir the paste in the material making bin 1, so as to prevent the paste from condensing and forming and affecting the output.

[0029] After checking that the overall material delivery pipeline 2 is installed properly, the paste is fed into the mine for filling. The main discharge valve 19, the pipeline valve 18 and the booster pump 20 are opened respectively by the controller, and the tailings paste in the material preparation bin 1 is pressurized and fed into the material delivery pipeline 2, and finally enters and is filled in the mine. In the process of the paste being transported in the material delivery pipeline 2, the paste will pass through the cutting knife plate in each section of the material delivery pipeline 2 and be cut and split by the blade 4, so as to prevent the paste from condensing and blocking the material delivery pipeline 2, so that the paste can be smoothly fed and filled in the mine.

[0030] Compared with the prior art, the utility model provides a controller and a control mechanism to facilitate the control of the output of the paste in the material preparation bin 1, and at the same time control the conveying flow of the paste in the conveying pipeline 2, so that the entire construction process from the production and output of the paste to the discharge into the mine for filling is automated and controllable, making the mine filling more efficient; by providing a plurality of end-to-end connected conveying pipelines 2 and providing a sealing connector 21 and an anti-blocking mechanism between two connected conveying pipelines 2, not only can the tailings paste be prevented from leaking during the transportation process and the loss of material be avoided, but the tailings paste in the conveying pipeline 2 can also be cut in a point-by-point manner by a cutting knife plate for multiple times, so that the tailings paste in the conveying pipeline 2 is prevented from agglomerating and causing pipeline blockage, which is conducive to ensuring the normal transportation work in the conveying pipeline 2, and solves the problem that the pipeline in traditional mine filling is long, which makes the paste easy to be blocked during transportation in the pipeline, affecting the normal operation of the mine filling.

[0031] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An automatic filling device for a mine, characterized in that: The invention comprises a material preparation bin for making paste, a plurality of material delivery pipelines and a controller which are connected end to end in sequence and are arranged between the bottom side of the material preparation bin and the mine pit; a support frame is arranged at the outer end of the bottom of the material preparation bin; a stirring mechanism for stirring the paste raw material in the material preparation bin is rotatably connected at the bottom of the material preparation bin; a feeding mechanism for adding the paste raw material and water into the material preparation bin is arranged at the top of the material preparation bin; a sealing connector is arranged between two adjacent material delivery pipelines; an anti-blocking mechanism is installed at one end of any material delivery pipeline away from the material preparation bin; the anti-blocking mechanism comprises a clamping ring clamped with one end of the material delivery pipeline and a cutting knife plate for cutting the paste in the material delivery pipeline which is arranged at one end of the clamping ring close to the inner side of the material delivery pipeline; a booster pump electrically connected to the controller is also arranged between the two adjacent material delivery pipelines; a control mechanism which is electrically connected to the controller and is used to control the delivery flow rate of the paste is also installed between the material delivery pipeline and the material preparation bin.

2. The automatic filling device for a mine according to claim 1, characterized in that: The support frame includes a bottom plate and a plurality of support columns arranged between the bottom plate and the outer end of the bottom side of the material making bin, the stirring mechanism includes a stirring shaft rotatably connected to the bottom of the material making bin and a stirring side rod arranged on the circumferential side of the stirring shaft, and a driving member for driving the stirring shaft to rotate is provided between the bottom plate and the bottom of the material making bin.

3. The automatic filling device for a mine according to claim 2, characterized in that: The stirring side rods include a first stirring rod, a second stirring rod and a third stirring rod which are vertically equidistantly arranged on the side of the stirring shaft, the vertical projections of the first stirring rod, the second stirring rod and the third stirring rod are evenly distributed on the circumference, and the bottom sides of the first stirring rod, the second stirring rod and the third stirring rod are each provided with a plurality of evenly arranged stirring vertical rods, and the bottom ends of all the stirring vertical rods are located above the inner bottom wall of the material making bin.

4. The automatic filling device for a mine according to claim 3, characterized in that: A reinforcing beam is provided in the middle of the top of the material making bin, and the top of the stirring shaft is rotatably connected to the reinforcing beam. The feeding mechanism includes a plurality of water inlet pipes installed on the top of the reinforcing beam and used to add water into the material making bin, and feeding pipes symmetrically installed on both sides of the top of the material making bin and used to add paste raw materials into the material making bin.

5. The automatic filling device for a mine according to claim 4, characterized in that: The control mechanism includes a feed valve installed on the feed pipe, a water adding valve installed on the water inlet pipe, a main discharge valve installed at the connecting end of the feed pipeline connected to the material making bin, and pipeline valves distributed and installed at one end of the feed pipeline away from the material making bin. The feed valve, water adding valve, main discharge valve and pipeline valve are all electrically connected to the controller.

6. The automatic filling device for a mine according to claim 1, characterized in that: The cutting blade comprises a plurality of blades which are cross-arranged and gathered on one axis, and one end of each blade is fixedly connected to the end surface of the clamping ring.

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