Open pit coal mine flat plate accumulated water drainage device

Abstract

The utility model provides an opencast coal mine flat plate accumulated water drainage device, and relates to the technical field of coal mine water treatment, the opencast coal mine flat plate accumulated water drainage device comprises flat plates arranged on a side slope in a step shape, a side wall is obliquely arranged between the upper and lower flat plates along the inner side, a drainage ditch is formed at the lower end of the side wall, and a water retaining assembly is arranged at the joint of the flat plates and the side wall; a water accumulation area is defined by the retaining wall on the lower-layer flat plate and the water retaining assembly, the water retaining assembly comprises a water retaining plate, a filter screen and a plurality of drainage pipes, connecting plates are arranged at the two ends of the water retaining plate, connecting grooves are formed in the connecting plates, the filter screen is inserted into the connecting grooves of the two connecting plates, and the drainage pipes are arranged on the water retaining plate in rows. The combined structure of the water baffle, the filter screen and the drainage pipe is simple and reasonable, when the filter screen needs to be replaced, the filter screen is lifted upwards, the filter screen is separated from the connecting grooves, then a new filter screen is inserted into the connecting grooves of the two connecting plates, and time and labor are saved.

Description

Technical Field

[0001] The present application relates to the technical field of coal mine water treatment, and in particular to a flat pan water drainage device for open-pit coal mines. Background Art

[0002] In open-pit coal mines, the installation of a flat plate water drainage device is very important. It can effectively avoid the adverse effects of water accumulation on production operations and reduce safety hazards.

[0003] The Chinese patent publication number CN217582226U discloses a drainage device for a flat pan of an open-pit coal mine, comprising a slope, a flat pan, a sidewall, and a safety retaining wall. The slope is formed with a flat pan with a stepped structure, the flat pan being arranged horizontally, and a sidewall being arranged obliquely along the inner side between the upper and lower flat pans. The sidewall is formed with a drainage ditch with a conical cross section, and a safety retaining wall is arranged along the sidewall of the flat pan. The safety retaining wall is arranged around the flat pan to form a water accumulation area. A water pipe connected to the water accumulation area is inserted into the sidewall of the upper flat pan, and the water outlet of the water pipe corresponds to the adjacent drainage ditch. The utility model can effectively drain the water accumulated in the flat pan under the action of the water pipe by providing a flat pan with a stepped structure, and the drainage ditch and water accumulation area formed therein. The accumulated water is stably discharged along the sidewall through the water pipe, and at the same time, the accumulated water can be prevented from scouring the sidewall and causing hidden dangers such as holes in the sidewall.

[0004] The above-mentioned device wraps a sand filter mesh at the water inlet end of the water pipe to form a filter. However, in actual use, in order to speed up the drainage, multiple water pipes are usually set up for drainage at the same time. However, after a period of use, the sand filter mesh is prone to clogging, thereby affecting the drainage effect. At this time, the sand filter meshes on the water pipes need to be removed one by one for replacement, which is a time-consuming and labor-intensive process. Summary of the Invention

[0005] The purpose of the embodiments of the present application is to provide an open-pit coal mine flat pan water drainage device, which can solve the technical problems raised by the background technology.

[0006] The present application provides a flat pan drainage device for open-pit coal mines, which is characterized by comprising a flat pan arranged in a stepped manner on a slope, a side wall arranged between the upper and lower flat pans along an inner inclined direction, a drainage ditch formed at the lower end of the side wall, a water retaining assembly provided at the connection between the flat pan and the side wall, a retaining wall provided on the lower flat pan, and the retaining wall and the water retaining assembly on the lower flat pan enclosing a water accumulation area;

[0007] The water retaining assembly includes a water retaining plate, a filter screen and multiple drain pipes. Connecting plates are provided at both ends of the water retaining plate. Connecting grooves are provided on the connecting plates. The filter screen is inserted into the connecting grooves of the two connecting plates. Multiple drain pipes are arranged in a row on the water retaining plate, and the water outlets of the drain pipes correspond to adjacent drainage ditches.

[0008] Furthermore, the water baffle is an inverted L-shaped plate, and the water baffle, the filter screen, the flat plate at the corresponding position and the connecting plates at both ends enclose a transition cavity.

[0009] Furthermore, a plurality of reinforcing rods are provided in the transition cavity, one end of the reinforcing rod is connected to the water baffle, and the other end of the reinforcing rod is connected to the flat plate.

[0010] Furthermore, a pulley is provided on the outer side of the connecting plate, and the two pulleys are connected by a belt transmission, one of the pulleys is connected to a driving motor, and the other pulley is rotatably arranged on a connecting plate on a side away from the driving motor, a connecting block is fixedly provided on the belt, a scraper is fixedly connected to the connecting block, and the scraper abuts against the filter screen.

[0011] Furthermore, the drive motor is fixed on the adjacent connecting plate, and the drive motor is provided with a protective cover, which is fixedly connected to the adjacent connecting plate, and the output shaft of the drive motor extends outside the protective cover and is connected to the corresponding pulley.

[0012] Furthermore, an elbow is provided at one end of the drain pipe away from the water baffle, and the water outlet of the elbow faces the adjacent drain ditch.

[0013] Furthermore, a diverter is provided at the water outlet of the elbow.

[0014] Beneficial effects of the utility model:

[0015] The water retaining assembly of the utility model includes a water retaining plate, a filter screen and multiple drain pipes. Connecting plates are provided at both ends of the water retaining plate, and connecting grooves are provided on the connecting plates. The filter screen is inserted into the connecting grooves of the two connecting plates. Multiple drain pipes are arranged in a row on the water retaining plate, and the water outlets of the drain pipes correspond to adjacent drainage ditches. The combined structure of the water retaining plate, the filter screen and the drain pipe is simple and reasonable, and is easy to install and maintain. When the filter screen needs to be replaced, the filter screen is lifted up to separate the filter screen from the connecting groove, and then the new filter screen is inserted into the connecting grooves of the two connecting plates, which saves time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic diagram of the structure of some embodiments of the present application;

[0018] Figure 2 A top view of some embodiments of the present application;

[0019] Figure 3 for Figure 2 Schematic diagram of the enlarged structure at A in the middle;

[0020] Figure 4 is a cross-sectional view of a water retaining assembly in some embodiments of the present application;

[0021] The reference numerals are:

[0022] 1. Slope; 2. Flat plate; 3. Side wall; 4. Drainage ditch; 5. Water retaining assembly; 51. Water retaining plate; 52. Filter screen; 53. Drain pipe; 6. Retaining wall; 7. Water accumulation area; 8. Connecting plate; 81. Connecting groove; 9. Transition chamber; 10. Reinforcement rod; 11. Pulley; 12. Belt; 13. Drive motor; 14. Connecting block; 15. Scraper; 16. Protective cover; 17. Elbow; 18. Diverter. DETAILED DESCRIPTION

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0025] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0026] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of this application is typically placed when in use. These terms are intended only to facilitate the description of this application and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0028] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances. Specific embodiment:

[0030] like Figure 1-4As shown, the present application provides an open-pit coal mine flat pan water drainage device, including a flat pan 2 arranged on a slope 1 in a stepped manner, a side wall 3 is arranged between the upper and lower flat pans 2 along the inner side, a drainage ditch 4 is formed at the lower end of the side wall 3, a water retaining component 5 is provided at the connection between the flat pan 2 and the side wall 3, a retaining wall 6 is provided on the lower flat pan 2, and the retaining wall 6 and the water retaining component 5 on the lower flat pan 2 are surrounded to form a water accumulation area 7. Through the stepped flat pan 2, the drainage ditch 4 at the lower end of the side wall 3 and the drainage pipe 53 on the water retaining component 5, the accumulated water on the flat pan 2 can be effectively guided and discharged, reducing the impact of the accumulated water on the production and safety of the coal mine. The water retaining component 5 includes a water retaining plate 51, a filter screen 52 and a plurality of drainage pipes 53. Connecting plates 8 are provided at both ends of the water retaining plate 51, and a connecting groove 81 is provided on the connecting plate 8. The filter screen 52 is inserted In the connecting groove 81 of the two connecting plates 8, multiple drain pipes 53 are arranged in a row on the water baffle 51, and the water outlet of the drain pipe 53 corresponds to the adjacent drain ditch 4. The filter screen 52 can filter impurities in the accumulated water to prevent impurities from entering the drain pipe 53 and causing blockage, thereby ensuring the smooth flow of the drainage system. Multiple drain pipes 53 are arranged in a row, which can speed up the drainage speed. Even if there is a problem with individual drain pipes 53, it will not have much impact on the overall drainage effect, thereby improving the stability of the drainage system. The combined structure of the water baffle 51, the filter screen 52 and the drain pipe 53 is simple and reasonable, and is easy to install and maintain. When the filter screen 52 needs to be replaced, the filter screen 52 is lifted up to separate the filter screen 52 from the connecting groove 81, and then the new filter screen 52 is inserted into the connecting groove 81 of the two connecting plates 8, which saves time and effort.

[0031] like Figure 4 As shown, the water retaining plate 51 is an inverted L-shaped plate. The water retaining plate 51 and the filter screen 52, the flat plate 2 at the corresponding position and the connecting plates 8 at both ends enclose a transition chamber 9, which further enhances the water retaining effect. After the water flow enters the transition chamber 9, the speed will slow down, thereby reducing the impact force of the water flow and providing more stable conditions for subsequent drainage or water treatment.

[0032] like Figure 4 As shown, a plurality of reinforcing rods 10 are provided in the transition chamber 9, one end of the reinforcing rod 10 is connected to the water baffle 51, and the other end of the reinforcing rod 10 is connected to the flat plate 2. The plurality of reinforcing rods 10 form a stable supporting structure in the transition chamber 9, which greatly improves the connection strength between the water baffle 51 and the flat plate 2. When the water baffle 51 is impacted by the water flow, the reinforcing rods 10 can effectively disperse the stress and prevent the water baffle 51 from being deformed or damaged.

[0033] like Figure 1-4As shown, a pulley 11 is provided on the outer side of the connecting plate 8, and the two pulleys 11 are connected by a belt 12. One of the pulleys 11 is connected to a driving motor 13, and the other pulley 11 rotates on the connecting plate 8 on the side away from the driving motor 13. A connecting block 14 is fixedly provided on the belt 12, and a scraper 15 is fixedly connected to the connecting block 14. The scraper 15 abuts against the filter screen 52. The driving motor 13 drives the pulley 11 at the corresponding position to rotate, thereby moving the belt 12. The connecting block 14 on the belt 12 drives the scraper 15 to move on the filter screen 52, thereby realizing automatic cleaning of the filter screen 52, avoiding clogging of the filter screen 52 due to accumulation of impurities, ensuring the continuous and stable filtering effect, and reducing the frequency of replacement of the filter screen 52.

[0034] like Figure 1-3 As shown, the drive motor 13 is fixed on the adjacent connecting plate 8. The drive motor 13 is provided with a protective cover 16, which is fixedly connected to the adjacent connecting plate 8. The output shaft of the drive motor 13 extends outside the protective cover 16 and is connected to the corresponding pulley 11. The protective cover 16 provides protection for the drive motor 13, effectively preventing dust, debris, ore particles, etc. in the harsh environment of the open-pit coal mine from damaging the motor. This extends the service life of the drive motor 13 and reduces equipment downtime and maintenance costs caused by motor failure.

[0035] like Figure 4 As shown, an elbow 17 is provided at one end of the drain pipe 53 away from the water baffle 51, and the outlet of the elbow 17 is directed toward the adjacent drain ditch 4. The setting of the elbow 17 can effectively change the direction of the water flow in the drain pipe 53, so that its outlet is accurately directed toward the adjacent drain ditch 4, preventing the water flow from eroding the side wall 3. When water flows out of the drain pipe 53, the elbow 17 can slow down the speed of the water flow and reduce the impact of the water flow on the drain ditch 4.

[0036] like Figure 4 As shown, a diverter 18 is provided at the water outlet of the elbow 17. The diverter 18 can divert the water flowing out of the water outlet of the elbow 17. This can avoid the water flow from concentrating in a certain place, reduce excessive impact on the local area of ​​the drainage ditch 4, and make the water flow more smoothly into the drainage ditch 4, thereby protecting the structural stability of the drainage ditch 4.

[0037] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A flat plate water drainage device for open-pit coal mines, characterized by: It includes a flat plate arranged on the slope in a stepped manner, a side wall is arranged along the inner side between the upper and lower flat plates, a drainage ditch is formed at the lower end of the side wall, a water retaining assembly is provided at the connection between the flat plate and the side wall, a retaining wall is provided on the lower flat plate, and the retaining wall and the water retaining assembly on the lower flat plate are enclosed to form a water accumulation area; The water retaining assembly includes a water retaining plate, a filter screen and multiple drain pipes. Connecting plates are provided at both ends of the water retaining plate. Connecting grooves are provided on the connecting plates. The filter screen is inserted into the connecting grooves of the two connecting plates. Multiple drain pipes are arranged in a row on the water retaining plate, and the water outlets of the drain pipes correspond to adjacent drainage ditches.

2. The open-pit coal mine flat pan water drainage device according to claim 1, characterized in that: The water baffle is an inverted L-shaped plate, and the water baffle, the filter screen, the flat plate at the corresponding position and the connecting plates at both ends enclose a transition cavity.

3. The open-pit coal mine flat pan water drainage device according to claim 2, characterized in that: A plurality of reinforcing rods are provided in the transition cavity, one end of each reinforcing rod is connected to the water baffle, and the other end of each reinforcing rod is connected to the flat plate.

4. The open-pit coal mine flat pan water drainage device according to claim 1, characterized in that: A pulley is provided on the outer side of the connecting plate, and the two pulleys are connected by a belt transmission. One of the pulleys is connected to a driving motor, and the other pulley is rotatably arranged on a connecting plate on a side away from the driving motor. A connecting block is fixed on the belt, and a scraper is fixedly connected to the connecting block, and the scraper abuts against the filter screen.

5. The open-pit coal mine flat pan water drainage device according to claim 4, characterized in that: The drive motor is fixed on the adjacent connecting plate. The drive motor is provided with a protective cover, which is fixedly connected to the adjacent connecting plate. The output shaft of the drive motor extends outside the protective cover and is connected to the corresponding pulley.

6. The open-pit coal mine flat pan water drainage device according to claim 1, characterized in that: An elbow is provided at one end of the drain pipe away from the water baffle, and a water outlet of the elbow faces an adjacent drain ditch.

7. The open-pit coal mine flat pan water drainage device according to claim 6, characterized in that: A diverter is provided at the water outlet of the elbow.

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