Water filtering device for machine head of belt conveyor

Abstract

The utility model belongs to the technical field of belt conveyors, and particularly discloses a belt conveyor head water filtering device which comprises a belt conveyor and a water filtering assembly arranged at the position of a belt conveyor head, and the water filtering assembly comprises a U-shaped water filtering bottom plate and a top water filtering piece arranged at the opening end of the U-shaped water filtering bottom plate. According to the water filtering device for the machine head of the belt conveyor, the water filtering assembly is arranged at the machine head of the belt conveyor, in the coal conveying process, when coal is conveyed to the machine head of the belt conveyor and is discharged to the next belt conveyor (or scraper conveyor), a large amount of coal can be discharged to the next belt conveyor (or scraper conveyor), and the coal conveying efficiency is greatly improved. The water and a small amount of coal can fall onto the water filtering assembly at the machine head of the belt conveyor, so that the content of water in the continuously conveyed coal is reduced, the coal is separated from the water, the coal flow is prevented from slipping on a rubber belt of the belt conveyor, and normal conveying of the coal is completed.

Description

Technical Field

[0001] This utility model relates to the field of belt conveyor technology, and in particular to a belt conveyor head water filtration device. Background Technology

[0002] Coal seam VI itself is an aquifer, and it is overlain by a massive sandstone aquifer 100-250 meters thick. During layered mining, water from the coal seam and the roof sandstone aquifer easily mixes with the mined coal, forming a high-moisture coal-water mixture. This mixture, after entering the transportation system through the mining equipment, experiences significant friction between the coal and the conveyor belt due to the lubricating effect of the moisture during transport in inclined roadways (such as the coal face roadway and main haulage roadway), leading to belt slippage. Figure 1 As shown, during the coal transportation process of the traditional belt conveyor 40, the coal 20 falls onto the belt 10 of the traditional belt conveyor 40. During transportation, water 30 is concentrated at the bottom of the coal 20. When the coal 20 is transported to the head of the traditional belt conveyor 40, it is discharged to the next belt conveyor (or scraper conveyor). Since the coal-water mixture will continue to be transported to the subsequent belt conveyor, a continuous belt slippage phenomenon will be formed. This not only causes a significant decrease in transportation efficiency and the coal transportation volume cannot reach the design capacity, but in more serious cases, it can lead to the loss of control of the conveyor system, and even cause safety accidents such as equipment damage, coal blockage, or personal injury.

[0003] Existing belt conveyor technology is mainly designed for dry or low-humidity coal transportation conditions. Especially in high-moisture, steep-angle transportation scenarios like the Mengba Mine, belt conveyors struggle to solve the problem of belt slippage caused by coal-water mixing, resulting in poor transportation stability and frequent malfunctions. Utility Model Content

[0004] This invention provides a water filtration device for the head of a belt conveyor, which can solve the problem in the prior art of belt conveyors that it is difficult to solve the problem of belt slippage caused by coal-water mixing, which leads to poor transportation stability and frequent failures.

[0005] A belt conveyor head water filtration device includes a belt conveyor and a water filtration assembly disposed at the head of the belt conveyor. The water filtration assembly includes a U-shaped water filtration base plate and a top water filtration element disposed at the open end of the U-shaped water filtration base plate.

[0006] The U-shaped filter base plate includes a base plate and two side support plates respectively perpendicularly disposed at the front end and rear end of the top of the base plate. The top filter component includes multiple filter rods arranged in a linear array along the length of the side support plates. The two ends of the filter rods are fixedly connected to the two side support plates respectively, and there is a gap between adjacent filter rods.

[0007] Furthermore, the top of the side support plate is provided with a connecting lug.

[0008] Furthermore, a chain is threaded through the connecting lug.

[0009] Furthermore, the diameter of the filter rod is 4-8mm.

[0010] Furthermore, the distance between two adjacent filter rods is 2-10mm.

[0011] Furthermore, the distance between two adjacent filter rods is 5mm.

[0012] Furthermore, the cross-sectional shape of the filter rod is circular or polygonal.

[0013] Furthermore, the angle between the plane containing the top surface of the base plate and the plane containing the conveying surface of the belt conveyor is 1-5°.

[0014] Furthermore, the filter rod is fixed to the side support plate by welding.

[0015] Furthermore, water filter holes are provided on both the base plate and the side support plate.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This utility model provides a water filtration device at the head of a belt conveyor. The water filtration component is installed at the head of the belt conveyor. During coal transportation, when coal is discharged from the head of the belt conveyor to the next belt conveyor (or scraper conveyor), the coal and water will separate due to the difference in specific gravity. Coal has a higher specific gravity and flies a longer distance, while water has a lower specific gravity and flies a shorter distance. Therefore, a large amount of coal will be discharged onto the next belt conveyor (or scraper conveyor), while water and a small amount of coal will fall onto the water filtration component at the head of the belt conveyor, reducing the water content in the coal being transported. This achieves the separation of coal and water, thereby preventing the coal from slipping on the belt conveyor belt and completing the normal transportation of coal.

[0018] 2. In this utility model, the water filtration assembly includes a U-shaped water filtration base plate and top water filtration components disposed at the open end of the U-shaped water filtration base plate. Multiple top water filtration components include multiple water filtration rods arranged in a linear array along the length of the side support plates. The two ends of each water filtration rod are fixedly connected to two side support plates, and there is a gap between adjacent water filtration rods. Based on the above, after water and a small amount of coal fall onto the top water filtration components at the head of the belt conveyor, the water will continue to fall into the U-shaped water filtration base plate, while the small amount of coal falls onto the water filtration rods for subsequent centralized processing. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0020] Figure 1 A schematic diagram of the structure of a belt conveyor provided as background information for this utility model;

[0021] Figure 2 A schematic diagram of the structure of a belt conveyor head water filtration device provided by this utility model;

[0022] Figure 3 A schematic diagram of the structure of a water filtration assembly of a belt conveyor head water filtration device provided by this utility model;

[0023] Figure 4 A schematic diagram of the top water filter element of a belt conveyor head water filtration device provided by this utility model;

[0024] Figure 5 This utility model provides a schematic diagram of the installation structure of a belt conveyor head water filtration device in a roadway.

[0025] Explanation of reference numerals in the attached drawings: 1. Belt conveyor; 2. Water filter assembly; 3. U-shaped water filter base plate; 4. Top water filter component; 6. Base plate; 7. Side support plate; 8. Connecting lug; 9. Chain; 10. Belt; 20. Coal; 30. Water; 40. Traditional belt conveyor; 50. Tunnel roof; 60. Tunnel floor; 70. Ditch. Detailed Implementation

[0026] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0027] The Barapukulya Coal Mine in Bangladesh (referred to as the Bangladesh Mine), the country's only large-scale modern mine, was constructed by a Chinese company and officially put into operation in 2005. It was designed to produce 1 million tons of raw coal annually and remains under Chinese management. The main coal seam mined is VI, with an average thickness of 36 meters. A layered mining process is employed, with each seam's thickness controlled within the range of 3-7 meters. However, the mine faces complex hydrogeological conditions during operation, severely hindering safe and efficient production.

[0028] Coal seam VI itself is an aquifer, and it is overlain by a massive sandstone aquifer 100-250 meters thick. During layered mining, water from the coal seam and the roof sandstone aquifer easily mixes with the mined coal, forming a high-moisture coal-water mixture. This mixture, after entering the transportation system through the mining equipment, experiences significant friction between the coal and the conveyor belt due to the lubricating effect of the moisture during transport in inclined roadways (such as the coal face roadway and main haulage roadway), leading to belt slippage. Figure 1 As shown, during the coal transportation process of the traditional belt conveyor 40, the coal 20 falls onto the belt 10 of the traditional belt conveyor 40. During transportation, water 30 is concentrated at the bottom of the coal 20. When the coal 20 is transported to the head of the traditional belt conveyor 40, it is discharged to the next belt conveyor (or scraper conveyor). Since the coal-water mixture will continue to be transported to the subsequent belt conveyor, a continuous belt slippage phenomenon will be formed. This not only causes a significant decrease in transportation efficiency and the coal transportation volume cannot reach the design capacity, but in more serious cases, it can lead to the loss of control of the conveyor system, and even cause safety accidents such as equipment damage, coal blockage, or personal injury.

[0029] Based on this, a belt conveyor head water filtration device is provided, which can solve the problem that the belt conveyor in the prior art is difficult to solve due to the mixing of coal and water, resulting in poor transportation stability and frequent failures.

[0030] like Figures 2 to 4 As shown, this utility model provides a belt conveyor head water filtration device, including a belt conveyor 1 and a water filtration assembly 2 disposed at the head of the belt conveyor 1. The water filtration assembly 2 includes a U-shaped water filtration base plate 3 and a top water filtration element 4 disposed at the open end of the U-shaped water filtration base plate 3.

[0031] The U-shaped filter base plate 3 includes a base plate 6 and two side support plates 7 respectively perpendicularly disposed at the top front end and top rear end of the base plate 6. The top filter component 4 includes a plurality of filter rods 5 arranged in a linear array along the length direction of the side support plates 7. The two ends of the filter rods 5 are respectively fixedly connected to the two side support plates 7, and there is a gap between adjacent filter rods 5.

[0032] The belt conveyor head water filtration device has a water filtration component 2 located at the head of the belt conveyor 1. Specifically, the head of the belt conveyor 1 is the end point in the conveying direction of the belt conveyor 1. During coal transportation, when coal is discharged from the head of the belt conveyor 1 to the next belt conveyor (or scraper conveyor), due to the difference in specific gravity between coal and water, the coal and water will separate. Coal, being denser, flies a greater distance, while water, being less dense, flies a shorter distance. Therefore, a large amount of coal will be discharged onto the next belt conveyor (or scraper conveyor), while water and a small amount of coal will fall onto the water filtration component 2 at the head of the belt conveyor 1, reducing the water content in the coal being transported further, thereby achieving coal-water separation and preventing the coal from slipping on the belt conveyor belt, thus completing the normal coal transportation. More specifically, such as... Figure 2 As shown, during the coal transportation process, the coal is placed on the belt conveyor 1 and transported from right to left to the head of the belt conveyor 1. When the coal is discharged to the next belt conveyor (or scraper conveyor), due to the difference in specific gravity between coal and water, a large amount of coal will be discharged onto the next belt conveyor (or scraper conveyor), while water and a small amount of coal will fall onto the water filter assembly 2 at the head of the belt conveyor 1, reducing the water content in the coal that continues to be transported.

[0033] In actual installation, the left end of the water filter assembly 2 is positioned close to the head of the belt conveyor 1, ensuring it does not interfere with the normal operation of the belt on the belt conveyor 1. Specifically, the water filter assembly 2 adopts a proximity layout, installed at the head of the belt conveyor 1 without interfering with the belt's running trajectory. This achieves seamless connection between the equipment and improves the overall structural compactness through space compression technology. The modular assembly design makes the water filter assembly 2 adjustable, ensuring that the filter surface always maintains the optimal contact angle with the material's falling trajectory.

[0034] The U-shaped filter base plate 3 includes a base plate 6 and two side support plates 7. The two side support plates 7 are fixedly installed at the top front end and top rear end of the base plate 6, respectively, and both side support plates 7 are perpendicular to the base plate 6. That is, the U-shaped filter base plate 3 can form an integrated rigid frame through the base plate 6 and the side support plates 7 on both sides of the base plate 6, which can withstand the impact of coal-water mixture. In addition, the vertical layout of the side support plates 7 makes the two ends of the filter rod 5 form symmetrical anchor points, fixing the filter rod 5 to the side support plates 7. Specifically, the filter rod 5 is perpendicular to the two side support plates 7 respectively.

[0035] There is a gap between adjacent filter rods 5. This gap forms a precise physical filtration channel, which is used to block coal on the filter rods 5 during coal flow transportation, and water falls onto the U-shaped filter base plate 3. In addition, during coal flow transportation, the coal flow has a certain transportation speed. During the coal discharge process, it will impact the filter component 2, which can disperse the coal accumulated on the filter rods 5 to a certain extent, avoid coal flow blockage between adjacent filter rods 5, and improve water filtration efficiency.

[0036] Based on the characteristics of coal and water, an adjustable filter rod array 5 is designed, which allows for the increase or decrease of the number of filter rods or the adjustment of the spacing to ensure filtration efficiency and improve the working condition adaptability of the filter assembly 2.

[0037] like Figures 2 to 4 As shown, in some embodiments of this utility model, the top of the side support plate 7 is provided with a connecting lug 8;

[0038] A chain 9 is threaded through the connecting lug 8;

[0039] The end of the chain 9 away from the connecting lug 8 can be connected to the roadway where the belt conveyor 1 is located. Through the suspension mechanism formed by the connecting lug 8 and the chain 9, the tilt angle of the water filter assembly 2 can be adjusted to accurately match the flow characteristics of coal water with different moisture contents, so as to achieve a dynamic balance between filtration efficiency and dewatering rate.

[0040] In addition, multiple connecting lugs 8 can be set, adopting a multi-point load-bearing structure to disperse the instantaneous impact load on the water filter assembly 2.

[0041] like Figures 2 to 4 As shown, in some embodiments of this utility model, the diameter of the filter rod 5 is 4-8mm;

[0042] Because multiple filter rods 5 are arranged in a linear array along the length of the side support plate 7, regular filter gaps are formed between adjacent filter rods 5. While ensuring effective interception of coal flow, the multi-channel diversion design reduces water flow resistance, achieving an optimized balance between filtration accuracy and flow efficiency. The diameter of the filter rod 5 is set in a reasonable range of 4-8mm, which avoids the gaps being easily blocked by fine particles due to the diameter being too small, and also prevents the diameter from affecting the filtration surface area due to the diameter being too large. This size design creates a turbulent effect in the water flow, reducing the adhesion and deposition of coal on the surface of the filter rod 5, and significantly extending the maintenance cycle.

[0043] In addition, the use of a 4-8mm diameter filter rod 5 ensures structural load-bearing capacity while reducing material usage to achieve a lightweight design. It can withstand long-term coal flow impact without deformation, ensuring the stability of the filtration gap.

[0044] like Figures 2 to 4 As shown, in some embodiments of this utility model, the distance between two adjacent filter rods 5 is 2-10mm; the distance between two adjacent filter rods 5 is preferably 5mm.

[0045] By limiting the spacing of the filter rods 5 to 5mm, coal particles can be efficiently retained.

[0046] like Figures 2 to 4As shown, in some embodiments of this utility model, the cross-sectional shape of the filter rod 5 is circular or polygonal; the cross-sectional shape of the filter rod 5 is preferably circular. With a circular design, the resistance is minimized when water flows through due to the symmetrical design. The flow resistance is significantly lower than that of a polygonal cross-section, which can reduce energy loss and improve water flow efficiency, and is especially suitable for high pressure or high flow velocity scenarios.

[0047] like Figures 2 to 4 As shown, in some embodiments of this utility model, the angle between the plane containing the top surface of the base plate 6 and the plane containing the conveying surface of the belt conveyor 1 is 1-5°.

[0048] The top surface of the bottom plate 6 forms a controllable inclination angle of 1-5° with the conveying surface of the belt conveyor 1, so that the filtered water generates a certain directional flow velocity along the inclined surface, which facilitates the discharge of water.

[0049] like Figures 2 to 4 As shown, in some embodiments of this utility model, the filter rod 5 is fixed to the side support plate 7 by welding; the welding connection forms a seamless connection, which significantly enhances the overall strength of the filter rod 5 and the side support plate 7. This connection method can withstand greater external forces, and the welded joint has natural sealing properties, which can prevent liquid or impurities from seeping into the connection part and reduce the risk of corrosion.

[0050] like Figures 2 to 4 As shown, in some embodiments of this utility model, both the base plate 6 and the side support plate 7 can be provided with water filter holes; the water filter holes are provided to drain the water flowing onto the base plate 6.

[0051] like Figures 2 to 5 As shown, in some embodiments of this utility model, the belt conveyor 1 is installed in the tunnel, the top of the tunnel has a tunnel top plate 50, the bottom of the tunnel has a tunnel bottom plate 60, and a water ditch 70 is also provided on the tunnel bottom plate 60.

[0052] In actual installation, one end of the chain 9 is connected to the connecting lug 8, and the other end of the chain 9 is connected to the tunnel roof 50. By setting multiple connecting lugs 8 on the top of the side support plate 7, the multiple connecting lugs 8 and the chain 9 form multiple suspension mechanisms. The water filter assembly 2 is suspended in the tunnel through these suspension mechanisms. By changing the length of the chain 9 at different positions, the inclination angle of the water filter assembly 2 can be changed, which can further improve the drainage efficiency of the water filter assembly 2.

[0053] This utility model provides a water filtration device at the head of a belt conveyor. The water filtration component 2 is installed at the head of the belt conveyor 1. During coal transportation, when coal is discharged from the head of the belt conveyor 1 to the next belt conveyor (or scraper conveyor), the coal and water will separate due to their different specific gravities. Coal has a higher specific gravity and flies a longer distance, while water has a lower specific gravity and flies a shorter distance. Therefore, a large amount of coal will be discharged onto the next belt conveyor (or scraper conveyor), while water and a small amount of coal will fall onto the water filtration component 2 at the head of the belt conveyor 1, reducing the water content in the coal being transported. This achieves the separation of coal and water, thereby preventing the coal from slipping on the belt of the belt conveyor 1 and completing the normal transportation of coal.

[0054] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A belt conveyor head water filter, comprising: It includes a belt conveyor (1) and a water filter assembly (2) located at the head of the belt conveyor (1). The water filter assembly (2) includes a U-shaped water filter base plate (3) and a top water filter element (4) located at the open end of the U-shaped water filter base plate (3). The U-shaped filter base plate (3) includes a base plate (6) and two side support plates (7) respectively perpendicularly disposed at the top front end and top rear end of the base plate (6). The top filter component (4) includes multiple filter rods (5) arranged in a linear array along the length direction of the side support plates (7). The two ends of the filter rods (5) are respectively fixedly connected to the two side support plates (7), and there is a gap between adjacent filter rods (5).

2. A belt conveyor head water filter according to claim 1, characterized in that The top of the side support plate (7) is provided with a connecting lug (8).

3. A belt conveyor head water filter according to claim 2, characterised in that A chain (9) is threaded through the connecting lug (8).

4. A belt conveyor head water filter according to claim 1, wherein The diameter of the filter rod (5) is 4-8 mm.

5. A belt conveyor head water filter according to claim 1, wherein The distance between two adjacent filter rods (5) is 2-10mm.

6. A belt conveyor head water filter according to claim 5, wherein The distance between two adjacent filter rods (5) is 5mm.

7. A belt conveyor head water filter according to claim 1, wherein The cross-sectional shape of the filter rod (5) is circular or polygonal.

8. A belt conveyor head water filter according to claim 1, wherein The angle between the plane containing the top surface of the base plate (6) and the plane containing the conveying surface of the belt conveyor (1) is 1-5°.

9. A belt conveyor head water filter according to claim 1, wherein The filter rod (5) is fixed to the side support plate (7) by welding.

10. A belt conveyor head water filter according to claim 1, wherein Both the base plate (6) and the side support plate (7) are provided with water filter holes.

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