Underground mining mine filling device

Abstract

The utility model discloses an underground mining mine filling device, which solves the problem that after a certain filling station breaks down, the operation of a corresponding to-be-filled area is interrupted and the production continuity of a mine is influenced in the prior art, and comprises a plurality of filling stations for providing slurry, the plurality of filling stations are arranged at intervals and are positioned on the ground; the number of the main pipelines is the same as that of the filling stations, the main pipelines and the filling stations are arranged in a one-to-one correspondence mode, the main pipelines are sequentially arranged in the horizontal direction, and the upper ends of the main pipelines are communicated with the corresponding filling stations; the to-be-filled areas are located underground, the number of the to-be-filled areas is the same as that of the filling stations, the to-be-filled areas and the filling stations are in one-to-one correspondence, and the lower ends of the main pipelines extend into the corresponding to-be-filled areas; any two adjacent main pipelines are communicated through the communicating pipe. According to the filling device, the mine production continuity is improved.

Description

Technical Field

[0001] This application belongs to the field of backfilling technology in underground mining, and specifically relates to a backfilling device for underground mining. Background Technology

[0002] Mine backfilling mainly involves transporting specific backfilling materials, such as cementitious materials, tailings, and water mixed together to form a slurry, to the goaf or other areas that need filling, in order to support the rock mass around the mining area and protect the safety of underground workers and equipment.

[0003] The mining area is large and requires regional operations. Multiple filling stations are set up on the surface to ensure the filling tasks of multiple areas of the mine. Generally speaking, one filling station corresponds to one filling area. When a filling station malfunctions and cannot supply filling materials, the filling area corresponding to the malfunctioning filling station cannot be filled, and normal operation cannot be carried out, which affects the continuity of mine production. Summary of the Invention

[0004] To address the technical problem of filling stations failing to fill corresponding filling areas and affecting normal operations, this application provides a filling device for underground mining.

[0005] This application provides a backfilling device for underground mining, comprising:

[0006] A filling station for supplying slurry, wherein multiple filling stations are provided and arranged at intervals and located on the ground;

[0007] The number of main pipelines is the same as the number of filling stations, and they are set up one-to-one. The main pipelines are set up sequentially in the horizontal direction, and the upper end of the main pipeline is connected to the corresponding filling station.

[0008] The filling area is located underground. The number of filling areas is the same as the number of filling stations, and they correspond one-to-one. The lower end of the main pipeline extends into the corresponding filling area.

[0009] A connecting pipe is a conduit through which any two adjacent main pipes are connected.

[0010] In some embodiments, there are three of each: the main pipeline, the filling station, and the area to be filled.

[0011] In some embodiments, the three main pipelines are a first main pipeline, a second main pipeline, and a third main pipeline, each of which includes an upper pipe section and a lower pipe section that are connected to each other.

[0012] The filling device further includes a first three-way valve and a second three-way valve. The first three-way valve and the second three-way valve each have a first port, a second port and a third port. The first port of the first three-way valve is connected to the upper section of the first main pipeline, and the second port and the third port of the first three-way valve are respectively connected to the lower section of the first main pipeline and the corresponding connecting pipe.

[0013] The first port of the second three-way valve is connected to the upper section of the third main pipeline, and the second and third ports of the second three-way valve are respectively connected to the lower section of the third main pipeline and the corresponding connecting pipe.

[0014] In some embodiments, a controller is also included, wherein both the first three-way valve and the second three-way valve are electrically controlled three-way valves, and the electrically controlled three-way valves are electrically connected to the controller.

[0015] In some embodiments, each of the connecting pipes is connected to a power element, which is electrically connected to the controller.

[0016] In some embodiments, each of the connecting pipes has two power components, and the two power components have opposite power directions.

[0017] In some embodiments, the mine has tunnels, and the connecting pipe is located within the tunnels.

[0018] In some embodiments, the height of the connecting pipe decreases sequentially along the flow direction of the filling medium.

[0019] In some embodiments, the filling station is equipped with a slurry preparation device and a water storage tank, wherein the slurry preparation device and the water storage tank are respectively connected to the corresponding main pipeline through branch pipes.

[0020] In some embodiments, the branch pipe is equipped with a valve.

[0021] The underground mining backfilling device provided according to the embodiments of this application includes backfilling stations, main pipelines, areas to be backfilled, and connecting pipes. Multiple backfilling stations are arranged at intervals and located on the ground. The number of main pipelines is the same as the number of backfilling stations, and they are arranged in a one-to-one correspondence. The main pipelines are arranged sequentially along a horizontal direction, and the upper end of each main pipeline is connected to the corresponding backfilling station via a connecting pipe. The areas to be backfilled are located underground, and the number of areas to be backfilled is the same as the number of backfilling stations, and they are arranged in a one-to-one correspondence. The lower end of each main pipeline extends into the corresponding area to be backfilled. Any two adjacent main pipelines are connected by a connecting pipe.

[0022] Since each filling zone is relatively large, a one-to-one correspondence is typically used, with each filling station operating independently. If one filling station malfunctions or lacks the necessary filling conditions, filling material can be supplied to the corresponding filling zone from other filling stations via connecting pipes. This allows the central filling stations to serve three filling zones simultaneously, and the peripheral stations to serve two, ensuring the continuity of filling operations and preventing production disruptions due to equipment failures at filling stations. Attached Figure Description

[0023] Figure 1 A schematic diagram of the structure of the mining backfilling device of this application is shown.

[0024] Explanation of reference numerals in the attached figures:

[0025] 10-Filling station, 10a-First filling station, 10b-Second filling station, 10c-Third filling station, 11-Upper pipe section, 12-Lower pipe section; 20-Main pipeline, 20a-First main pipeline, 20b-Second main pipeline, 20c-Third main pipeline, 30-Place-to-fill area, 30a-First place-to-fill area, 30b-Second place-to-fill area, 30c-Third place-to-fill area, 40-Connecting pipe, 40a-First connecting pipe, 40b-Second connecting pipe, 41-First power component, 42-Second power component, 51-First three-way valve, 52-Second three-way valve. Detailed Implementation

[0026] To enable those skilled in the art to more clearly understand this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0027] This application provides a backfilling device for underground mining, which can still fill the backfilling area corresponding to the failed backfilling station with slurry even if one of the backfilling stations fails, thereby improving the continuity of operations and reducing the impact on production.

[0028] This application is described below with reference to the accompanying drawings and specific embodiments:

[0029] Please see Figure 1 The mining backfilling device provided in this application includes a backfilling station 10, a main pipeline 20, a backfilling area 30, and a connecting pipe 40.

[0030] The filling station 10 is used to provide slurry. There are multiple filling stations 10, which are arranged at intervals and located on the ground. The number of main pipelines 20 is the same as that of the filling stations 10, and they are set up one-to-one. The main pipelines 20 are set up sequentially in the horizontal direction. The upper end of the main pipeline 20 is connected to the corresponding filling station 10 through the connecting pipe 40. The filling area 30 is located underground. The number of filling areas 30 is the same as that of the filling stations 10, and they are set up one-to-one. The lower end of the main pipeline 20 extends into the corresponding filling area 30. Any two adjacent main pipelines 20 are connected through the connecting pipe 40.

[0031] The filling station 10 can provide filling materials for the filling area 30, such as slurry mixed with tailings. The number of filling stations 10, main pipelines 20 and filling areas 30 are the same and are set up in a one-to-one correspondence. In this way, the filling materials provided by the filling station 10 can be sent into the underground filling area 30 through the main pipeline 20 to complete the filling operation.

[0032] Generally, each filling zone 30 is relatively large, so one filling station 10 is typically used to fill one filling zone 30, with each zone operating independently without interference. When one filling station 10 malfunctions or is unable to fill, filling material can be supplied to the filling zone 30 corresponding to the malfunctioning station through the connecting pipe 40 from other filling stations 10. This allows the central filling station 10 to serve three filling zones 30, and the peripheral filling stations 10 to serve two, ensuring the continuity of filling operations and preventing production disruptions due to equipment failure at the filling station 10.

[0033] The following example, which has three filling stations 10, three main pipelines 20, and three waiting-to-be-filled areas 30, and two connecting pipes 40, will be used to introduce the filling device of underground mines in detail.

[0034] The three filling stations 10 are designated as the first filling station 10a, the second filling station 10b, and the third filling station 10c, and are distributed sequentially and alternately along the horizontal direction. The three main pipelines 20 are designated as the first main pipeline 20a, the second main pipeline 20b, and the third main pipeline 20c. The three areas to be filled 30 are designated as the first area to be filled 30a, the second area to be filled 30b, and the third area to be filled 30c. The two connecting pipes 40 are designated as the first connecting pipe 40a and the second connecting pipe 40b.

[0035] The first filling station 10a is connected to the first filling area 30a via the first main pipeline 20a, the second filling station 10b is connected to the second filling area 30b via the second main pipeline 20b, and the third filling station 10c is connected to the third filling area 30c via the third main pipeline 20c.

[0036] The first main pipe 20a is connected to the second main pipe 20b through the first connecting pipe 40a, and the third main pipe 20c is connected to the second main pipe 20b through the second connecting pipe 40b. In other words, the second main pipe 20b is connected to the first main pipe 20a and the third main pipe 20c through the first connecting pipe 40a and the second connecting pipe 40b, respectively.

[0037] If the first filling station 10a experiences a equipment failure, the second filling station 10b can supply slurry to the first filling area 30a via the second main pipe 20b and the first connecting pipe 40a. Similarly, if the third filling station 10c experiences a equipment failure, the second filling station 10b can supply slurry to the third filling area 30c via the second main pipe 20b and the second connecting pipe 40b. If the second filling station 10b experiences a equipment failure, the first filling station 10a can supply slurry to the second filling area 30b via the first main pipe 20a and the first connecting pipe 40a, or the third filling station 10c can supply slurry to the second filling area 30b via the third main pipe 20c and the second connecting pipe 40b. Therefore, when a filling station 10 experiences a equipment failure, slurry can be supplied to the corresponding filling area 30 via adjacent filling stations 10, ensuring the continuity of mine production.

[0038] The first main pipeline 20a, the second main pipeline 20b, and the third main pipeline 20c each include an upper pipe section 11 and a lower pipe section 12 that are connected to each other. The upper pipe section 11 is connected to the corresponding filling station 10, and the lower pipe section 12 is connected to the corresponding filling area 30.

[0039] In some embodiments, the height of the connecting pipe 40 decreases sequentially along the flow direction of the filling medium. For example, for the first connecting pipe 40a, the height of the first connecting pipe 40a decreases sequentially along the direction from the second main pipe 20b to the first main pipe 20a. In the event of a equipment failure in the first filling station 10a, the slurry in the second main pipe 20b can flow smoothly through the first connecting pipe 40a to the first main pipeline under the action of gravity. Similarly, the height of the second connecting pipe 40b decreases sequentially along the direction from the second main pipe 20b to the third main pipe 20c. In this way, in the event of a equipment failure in the third filling station 10c, the slurry in the second main pipe 20b can flow smoothly through the second connecting pipe 40b to the third main pipe 20c under the action of gravity.

[0040] In some embodiments, when the first connecting pipe 40a and the second connecting pipe 40b are inclined, two first connecting pipes 40a can be provided, and the inclination directions of the two first connecting pipes 40a are opposite. In this way, the slurry in the second main pipe 20b flows smoothly into the first main pipe 20a through the first connecting pipe 40a, which is higher on the side of the second main pipe 20b and lower on the side of the first main pipe 20a. The slurry in the first main pipe 20a flows smoothly into the second main pipe 20b through the first connecting pipe 40a, which is lower on the side of the second main pipe 20b and higher on the side of the first main pipe 20a. Similarly, two second connecting pipes 40b can be provided, with the two second connecting pipes 40b inclined in opposite directions, so that the slurry in the second main pipe 20b flows smoothly into the third main pipe 20c through the second connecting pipe 40b which is higher on the side of the second main pipe 20b and lower on the side of the third main pipe 20c, and the slurry in the third main pipe 20c flows smoothly into the second main pipe 20b through the second connecting pipe 40b which is lower on the side of the second main pipe 20b and higher on the side of the third main pipe 20c.

[0041] In other embodiments, the first connecting pipe 40a and the second connecting pipe 40b are respectively connected to a power component. The power direction of the power component is opposite to the natural flow direction of the slurry in the corresponding connecting pipe 40 due to gravity. That is, the height of the connecting pipe 40 increases sequentially along the power transmission direction of the power component. For example, the first main pipe 20a side of the first connecting pipe 40a is shorter, and the second main pipe 20b side is higher. This allows the slurry to flow from the second main pipe 20b to the first main pipe 20a by gravity, and the slurry to flow from the first main pipe 20a to the second main pipe 20b by the power component. Conversely, the first main pipe 20a side of the first connecting pipe 40a is higher, and the second main pipe 20b side is shorter. This allows the slurry to flow from the first main pipe 20a to the second main pipe 20b by gravity, and the slurry to flow from the second main pipe 20b to the first main pipe 20a by the power component. Similarly, the structure of the second connecting pipe 40b is the same as that of the first connecting pipe 40a, and will not be described again in this application.

[0042] In some other embodiments, please refer to Figure 1 The first connecting pipe 40a is equipped with two power components, which transmit power in opposite directions. These components enable bidirectional smooth flow of the slurry, allowing slurry from the first filling station 10a to flow into the second filling zone 30b, and vice versa. Similarly, the second connecting pipe 40b is equipped with two power components, which also transmit power in opposite directions. This enables bidirectional smooth flow of the slurry, allowing slurry from the third filling station 10c to flow into the second filling zone 30b, and vice versa.

[0043] A power pump can be selected as the power component, which is electrically connected to the controller to realize automatic control of the power component.

[0044] In some embodiments, please refer to Figure 1 The filling device also includes a first three-way valve 51 and a second three-way valve 52. Both the first three-way valve 51 and the second three-way valve 52 have a first port, a second port and a third port. The first port of the first three-way valve 51 is connected to the upper pipe section 11 of the first main pipe 20a. The second port and the third port of the first three-way valve 51 are respectively connected to the lower pipe section 12 of the first main pipe 20a and the corresponding connecting pipe 40. The first port of the second three-way valve 52 is connected to the upper pipe section 11 of the third main pipe 20c. The second port and the third port of the second three-way valve 52 are respectively connected to the lower pipe section 12 of the third main pipe 20c and the corresponding connecting pipe 40.

[0045] A three-way valve is a common fluid control valve that changes the fluid flow direction by moving the valve core. For example, slurry can flow in through the first port and out through the second and / or third port; conversely, slurry can also flow in through the third port and out through the second port. Three-way valves can be straight-through, T-type, or L-type. Generally, automatic three-way valves are preferred, using electric, pneumatic, or hydraulic actuation to achieve automatic control, adapting to the needs of scenarios where well operations are difficult.

[0046] The filling device may also include a controller. The first three-way valve 51 and the second three-way valve 52 are both electrically controlled three-way valves. The electrically controlled three-way valves are electrically connected to the controller, thereby realizing the valve core control of the two three-way valves and changing the fluid passage.

[0047] In practice, both the first connecting pipe 40a and the second connecting pipe 40b are installed in the tunnels of the underground mine and fixed to the inner wall of the tunnel for easy installation and fixation.

[0048] The filling station 10 is a structure for preparing and transporting filling materials. The filling station 10 includes a slurry preparation device and a water storage tank. The slurry preparation device includes a deep cone thickener and a mixing tank. The deep cone thickener can increase the tailings concentration. High-concentration tailings are mixed with cementitious materials and water in the mixing tank to form a slurry. The slurry branch pipe is connected to the corresponding main pipeline 20.

[0049] The filling station 10 is also equipped with a water source to provide water for forming the slurry. The water source can also be connected to the corresponding main pipe 20 and the connecting pipe 40 through a branch pipe. After the filling operation is completed, water is sent into the main pipe 20 and the connecting pipe 40 to clean the slurry on the pipe walls and keep it for later use.

[0050] In some embodiments, the branch pipe is equipped with a valve to open or close the branch pipe as needed.

[0051] Taking the setting of three filling stations and two power components on the connecting pipe 40 as an example, the specific working process of the mining filling device provided in this application is as follows:

[0052] When the first filling station 10a, the second filling station 10b, and the third filling station 10c are all operating normally, the first port and the second port of the first three-way valve 51 are connected, the first port and the second port of the second three-way valve 52 are connected, the first filling station 10a supplies slurry to the first waiting area 30a through the first main pipeline 20a, the second filling station 10b supplies slurry to the second waiting area 30b through the second main pipeline 20b, and the third filling station 10c supplies slurry to the third waiting area 30c through the third main pipeline 20c.

[0053] In the event of a mixer malfunction at the first filling station 10a, the second and third ports of the first three-way valve 51 are opened, and the second filling station 10b supplies slurry to the second filling area 30b through the second main pipeline 20b. At the same time, the corresponding first power unit 41 is activated, and the slurry in the second main pipeline 20b travels through the first connecting pipe 40a to the lower section 12 of the first main pipeline 20a, supplying slurry to the first filling area 30a.

[0054] In the event of a mixer malfunction at the second filling station 10b, the second and third ports of the second three-way valve 52 are opened, and the second filling station 10b supplies slurry to the second filling area 30b through the second main pipeline 20b. At the same time, the corresponding second power unit 42 is activated, and the slurry in the second main pipeline 20b travels through the second connecting pipe 40b to the lower section 12 of the third main pipeline 20c, supplying slurry to the third filling area 30c.

[0055] In the event of a mixer equipment failure at the third filling station 10c, the first and second ports of the first three-way valve 51 are connected, and the first port is connected to the third port. The first filling station 10a supplies slurry to the first filling area 30a through the first main pipeline 20a. At the same time, the corresponding first power unit 41 is started. The slurry in the first main pipeline 20a runs through the first connecting pipe 40a to the lower pipe section 12 of the second main pipeline 20b, supplying slurry to the second filling area 30b.

[0056] After the filling operation is completed, the pipeline is flushed clean and kept for future use.

[0057] During normal production operations, the three filling stations 10 are responsible for filling their respective areas without interfering with each other. When any one of the three filling stations 10 (first filling station 10a, second filling station 10b, and third filling station 10c) malfunctions or the underground filling conditions are not met, the adjacent filling station 10 of the malfunctioning station serves as the slurry source. In other words, the adjacent filling station of the malfunctioning station takes over the filling operations of both waiting areas 30, thus ensuring the continuity of filling operations and avoiding production disruptions caused by equipment problems.

[0058] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0059] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0060] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0061] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0062] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A backfilling device for underground mining, characterized in that, include: A filling station for supplying slurry, wherein multiple filling stations are provided and arranged at intervals and located on the ground; The number of main pipelines is the same as the number of filling stations, and they are set up one-to-one. The main pipelines are set up sequentially in the horizontal direction, and the upper end of the main pipeline is connected to the corresponding filling station. The filling area is located underground. The number of filling areas is the same as the number of filling stations, and they correspond one-to-one. The lower end of the main pipeline extends into the corresponding filling area. A connecting pipe is a conduit through which any two adjacent main pipes are connected.

2. The mining backfilling device according to claim 1, characterized in that, There are three of each of the main pipeline, the filling station, and the area to be filled.

3. The mining backfilling device according to claim 2, characterized in that, The three main pipelines are a first main pipeline, a second main pipeline, and a third main pipeline. Each of the first main pipeline, the second main pipeline, and the third main pipeline includes an upper pipe section and a lower pipe section that are connected to each other. The filling device further includes a first three-way valve and a second three-way valve. The first three-way valve and the second three-way valve each have a first port, a second port and a third port. The first port of the first three-way valve is connected to the upper section of the first main pipeline, and the second port and the third port of the first three-way valve are respectively connected to the lower section of the first main pipeline and the corresponding connecting pipe. The first port of the second three-way valve is connected to the upper section of the third main pipeline, and the second and third ports of the second three-way valve are respectively connected to the lower section of the third main pipeline and the corresponding connecting pipe.

4. The mining backfilling device according to claim 3, characterized in that, It also includes a controller, and both the first three-way valve and the second three-way valve are electrically controlled three-way valves, which are electrically connected to the controller.

5. The mining backfilling device according to claim 4, characterized in that, Each of the connecting pipes is connected to a power component, which is electrically connected to the controller.

6. The mining backfilling device according to claim 5, characterized in that, Each of the connecting pipes has two power components, and the two power components transmit power in opposite directions.

7. The mining backfilling device according to claim 5, characterized in that, Along the power transmission direction of the power component, the height of the connecting pipe increases sequentially.

8. The mining backfilling apparatus according to any one of claims 1-7, characterized in that, The mine has tunnels, and the connecting pipe is located inside the tunnels.

9. The mining backfilling apparatus according to any one of claims 1-7, characterized in that, The filling station is equipped with a slurry preparation device and a water storage tank. The slurry preparation device and the water storage tank are respectively connected to the corresponding main pipeline through branch pipes.

10. The mining backfilling device according to claim 9, characterized in that, The branch pipe is equipped with a valve.

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