Suspension drainage device for underground coal mine

Abstract

The utility model discloses a suspension drainage device for an underground coal mine, which comprises a floating platform and an arranged empty oil drum, and a water pump is mounted on the upper surface of the floating platform; the cable is arranged on the outer side of the water pump, and the end of the cable is connected with the power supply end of the water pump; the water pumping pipe is arranged on the lower surface of the floating platform, and the water outlet end of the water pumping pipe penetrates through the outer wall of the floating platform and extends upwards to be communicated with the water inlet end of the water pump. According to the suspension drainage device for the underground coal mine, after the floating platform is placed on the water surface, the empty oil barrel provides buoyancy for the floating platform on the water surface, the water pumping pipe is located in water, the cable provides electric power for the water pump, the water pump pumps water outwards through the water pumping pipe, and the device assists the water pump to suspend in accumulated water of a roadway; the water pump can be prevented from being blocked, the water drainage efficiency is improved, the labor intensity is reduced, and meanwhile the water drainage device adapts to water drainage operation in complex environments.

Description

Technical Field

[0001] This utility model belongs to the field of coal mine underground drainage technology, specifically relating to a suspended drainage device for coal mine underground use. Background Technology

[0002] Coal mine underground refers to the underground space above the surface during coal mining. The structure of a coal mine underground typically includes main ventilation roadways, mining roadways, drainage roadways, and return air roadways. Among these, the main ventilation roadways are one of the most important structures in a coal mine underground, responsible for supplying fresh air to the mine and ensuring air quality and a suitable working environment. Depending on the mining method, coal mines can be classified into longwall mining, fully mechanized mining, and shortwall mining. Longwall mining is the most common method. During coal mining, groundwater continuously seeps into the mine. If not drained in time, this can lead to mine flooding, posing a serious threat to miners' lives and potentially causing mine flooding accidents, resulting in significant loss of life and property. Therefore, a drainage system is essential for miners to drain groundwater promptly, ensuring safety during production. The use of a drainage system in coal mines is indispensable, directly impacting miners' safety, mine production efficiency, and environmental protection. During coal mining, the construction and maintenance of drainage systems must be prioritized to ensure their normal operation and effective drainage.

[0003] Traditional underground drainage systems in coal mines typically use water pumps for prolonged water extraction. Firstly, due to continuous operation, the pump inlet easily becomes clogged with coal sludge, conveyor belt debris, and other waste, leading to increased pump head, reduced flow rate, and significantly lower pumping efficiency. Secondly, workers need to constantly move the pump to adapt to water level changes, increasing labor intensity. Thirdly, submersible pumps are difficult to clean underwater, and they tend to re-clogger after a period of time, limiting continuous operation. Fourthly, when pumping water downhill, the submersible pump must be placed in water at a certain distance from the shore to ensure a sufficient submersion depth, requiring manual repositioning with a hand winch and venturing into water of considerable depth, making initial operations extremely inconvenient and unsafe. Therefore, a suspended drainage device for underground coal mines is proposed. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, this utility model provides a suspended drainage device for underground coal mines to solve the above-mentioned technical problems that not only cause blockage and reduce drainage efficiency, but also increase the intensity of manual labor and cannot adapt to complex environments.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a suspended drainage device for underground coal mines, comprising:

[0006] A floating platform, and an empty oil drum set on the lower surface of the floating platform, and a water pump installed on the upper surface of the floating platform;

[0007] The cable is located outside the water pump, and the end of the cable is connected to the power supply terminal of the water pump.

[0008] A suction pipe is installed on the lower surface of the floating platform, with its outlet extending upwards through the outer wall of the platform and connecting to the inlet of the water pump. After the floating platform is placed on the water surface, an empty oil drum provides buoyancy, while the suction pipe remains submerged. An electric cable powers the water pump, enabling it to draw water outwards through the suction pipe. This device suspends the auxiliary water pump in the accumulated water of the tunnel, preventing it from sinking to the tunnel floor and being buried or blocked by silt or debris. This allows for more efficient drainage, especially after a mine flooding accident, enabling rapid and stable drainage of water from the tunnel, ensuring mine safety. The suspended rapid drainage mode ensures stable pump operation during drainage. This stability not only improves drainage efficiency but also reduces equipment failure and maintenance frequency. Workers do not need to move the pump to adapt to water level changes, reducing labor intensity. The suspended pump design allows it to adapt to complex mine environments, including changes in water level and water quality. This adaptability enables the pump to operate normally under various conditions, improving mine safety and production efficiency. At the same time, this device is particularly suitable for emergency drainage scenarios such as coal mine water inrush accidents. Through innovative suspension design, it achieves continuous and efficient drainage operations, greatly improving the safety and efficiency of coal mine drainage. It not only avoids blockages and improves drainage efficiency, but also reduces labor intensity and adapts to complex environments for drainage.

[0009] Furthermore, there are six sets of empty oil drums, and the drums are cylindrical in shape. These empty oil drums are evenly distributed on the lower surface of the float platform. The empty oil drums provide buoyancy to the float platform.

[0010] Furthermore, the inner cavity of the float platform is evenly provided with hollow chambers around its perimeter, and each hollow chamber is slidably connected to a side connecting rod. The side connecting rods can be translated along the hollow chambers.

[0011] Furthermore, the outer ends of the side connecting rods all extend outward through the inner wall of the hollow cavity, and buffer blocks are evenly installed around the float platform, with the buffer blocks connected to the outer ends of the side connecting rods. When the buffer blocks outside the float platform are impacted, the buffer blocks drive the side connecting rods to move into the hollow cavity.

[0012] Furthermore, a buffer spring is added to the inner end of the side connecting rod, and the two ends of the buffer spring are respectively in contact with the inner end of the side connecting rod and the inner wall of the hollow cavity. When debris impacts the floating platform on the water, the debris first collides with the buffer block. The buffer block drives the side connecting rod to move into the hollow cavity and compresses the buffer spring. Through the buffer block and buffer spring, the impact force of debris on the floating platform can be reduced, which not only improves the stability of the floating platform and ensures the pumping effect, but also extends the service life of the floating platform and reduces maintenance costs. Beneficial effects

[0013] This underground coal mine uses a suspended drainage system. A floating platform is placed on the water surface, with an empty oil drum providing buoyancy. The pumping pipe is submerged in the water, and an electric cable powers the pump, enabling it to draw water out through the pipe. This system allows the pump to remain suspended in the waterlogged tunnel, preventing it from sinking to the floor and being buried or blocked by silt or debris. This allows for more efficient drainage, especially after a mine flooding incident, ensuring rapid and stable drainage of water and maintaining mine safety. The suspended rapid drainage mode ensures stable pump operation during drainage. This stability not only improves drainage efficiency but also reduces equipment failures and maintenance frequency. Workers do not need to move the pump to adapt to water level changes, reducing labor intensity. The suspended pump design allows it to adapt to complex mine environments, including changes in water level and quality. This adaptability enables the pump to operate normally under various conditions, improving mine safety and production efficiency. At the same time, this device is particularly suitable for emergency drainage scenarios such as coal mine water inrush accidents. Through innovative suspension design, it achieves continuous and efficient drainage operations, greatly improving the safety and efficiency of coal mine drainage. Attached Figure Description

[0014] Figure 1 This is a top view of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the overall front view of the present invention;

[0016] Figure 3 This is a schematic diagram of the overall side view of the present invention.

[0017] In the diagram: 1. Empty oil drum; 2. Floating platform; 3. Water pump; 4. Cable; 5. Water suction pipe; 6. Side connecting rod; 7. Buffer block; 8. Buffer spring. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] This utility model provides a technical solution: a suspended drainage device for underground coal mines, comprising: (See details) Figure 1 The floating platform 2, and the empty oil drum 1 set on the lower surface of the floating platform 2, and the water pump 3 is installed on the upper surface of the floating platform 2;

[0020] Please see Figure 3 Cable 4 is located on the outside of water pump 3, and the end of cable 4 is connected to the power supply terminal of water pump 3.

[0021] Please see Figure 2 A water pumping pipe 5 is installed on the lower surface of the floating platform 2, with its outlet end extending upward through the outer wall of the floating platform 2 and connecting to the inlet end of the water pump 3. After the floating platform 2 is placed on the water surface, an empty oil drum 1 provides buoyancy to the platform, while the water pumping pipe 5 remains submerged. An electric cable 4 provides power to the water pump 3, enabling it to pump water outward through the water pumping pipe 5. This device helps the water pump 3 suspend in the accumulated water of the tunnel, preventing it from sinking to the tunnel floor and being buried or blocked by silt or debris. This allows the water pump 3 to drain water more efficiently, especially after a mine flooding accident, enabling it to quickly and stably drain water from the tunnel and ensure mine safety. Simultaneously, the suspended rapid drainage mode ensures that the water pump 3 maintains stable operation during the drainage process. This stability not only improves drainage efficiency but also reduces the frequency of equipment failures and maintenance. Workers do not need to move the water pump 3 to adapt to water level changes, reducing labor intensity. The design of the suspended water pump 3 allows it to adapt to complex mine environments, including changes in water level and water quality. This adaptability enables the water pump 3 to operate normally under various conditions, improving mine safety and production efficiency. Furthermore, this device is particularly suitable for emergency drainage scenarios such as coal mine flooding accidents. Through its innovative suspended design, it achieves continuous and efficient drainage operations, greatly improving the safety and efficiency of coal mine drainage. It not only avoids blockages and improves drainage efficiency but also reduces labor intensity and adapts to complex environments.

[0022] Please see Figure 1There are six sets of empty oil tanks 1, each with a cylindrical design, evenly distributed on the lower surface of the float platform 2. The empty oil tanks 1 provide buoyancy to the float platform 2. Hollow chambers are evenly distributed around the inner circumference of the float platform 2, and side connecting rods 6 are slidably connected to the interior of each chamber. The side connecting rods 6 can move along the hollow chambers. The outer ends of the side connecting rods 6 extend outwards through the inner wall of the hollow chambers and are evenly installed around the float platform 2 with buffer blocks 7 connected to the outer ends of the side connecting rods 6. When the buffer blocks 7 on the outside of the float platform 2 are impacted, they cause the side connecting rods 6 to move into the hollow chambers. A buffer spring 8 is added to the inner end of the side connecting rod 6, with both ends of the buffer spring 8 fitting against the inner end of the side connecting rod 6 and the inner wall of the hollow chamber, respectively. When debris impacts the float platform 2 on the water, the debris first collides with the buffer block 7. The buffer block 7 drives the side connecting rod 6 to move into the hollow cavity and compresses the buffer spring 8. The impact force of the debris on the float platform 2 can be reduced through the buffer block 7 and the buffer spring 8, which not only improves the stability of the float platform 2 and ensures the pumping effect, but also extends the service life of the float platform 2 and reduces maintenance costs.

[0023] This scheme involves placing the float platform 2 on the water surface, with the empty oil drum 1 providing buoyancy for the float platform 2. The water pump pipe 5 is located in the water, and the cable 4 provides power to the water pump 3, enabling the water pump 3 to pump water out through the water pump pipe 5. When debris impacts the float platform 2 on the water surface, the debris first collides with the buffer block 7. The buffer block 7 then moves the side connecting rod 6 into the hollow cavity and compresses the buffer spring 8.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A suspended drainage device for use in a coal mine, characterised in that, include: The floating platform (2) and the empty oil drum (1) set on the lower surface of the floating platform (2) are provided, and the water pump (3) is installed on the upper surface of the floating platform (2). Cable (4) is located on the outside of water pump (3), and the end of cable (4) is connected to the power supply terminal of water pump (3); A water pump (5) is installed on the lower surface of the floating platform (2), and the water outlet of the water pump (5) extends upward through the outer wall of the floating platform (2) and is connected to the water inlet of the water pump (3).

2. The suspended drainage device for use in a coal mine according to claim 1, characterized in that: There are six sets of empty oil drums (1), and the empty oil drums (1) are cylindrical in shape. The empty oil drums (1) are evenly arranged on the lower surface of the floating platform (2).

3. The floating drainage device for underground coal mine according to claim 1, characterized in that: The inner cavity of the floating platform (2) is evenly provided with hollow chambers around its perimeter, and each hollow chamber is slidably connected with a side connecting rod (6).

4. The suspended drainage device for use in a coal mine according to claim 3, characterized in that: The outer ends of the side connecting rods (6) extend outward through the inner wall of the hollow cavity, and buffer blocks (7) are evenly installed around the float platform (2), and the buffer blocks (7) are connected to the outer ends of the side connecting rods (6).

5. A suspended drainage device for use in a coal mine according to claim 4 wherein: A buffer spring (8) is provided at the inner end of the side connecting rod (6), and the two ends of the buffer spring (8) are respectively attached to the inner end of the side connecting rod (6) and the inner wall of the hollow cavity.

Images