Belt conveyor with sunken belt strip water drainage device

Abstract

The application discloses a belt conveyor with a sinking type rubber belt row water accumulation device, and belongs to the technical field of underground coal mine belt conveyors. The sinking type rubber belt row water accumulation device comprises a mounting frame, a row water accumulation pipe which is parallel to the transmission rollers and sinks the conveying rubber belt is fixed on the mounting frame, and a plurality of uniformly distributed drainage holes are formed in the bottom wall of the row water accumulation pipe. Through the sinking design of the row water accumulation pipe, the conveying rubber belt locally sinks when passing through the area, the accumulated water is guided to the bottom of the row water accumulation pipe, the drainage holes directly guide the accumulated water into the pipe, and then the accumulated water is discharged from the end of the row water accumulation pipe, so that the accumulated water is avoided to be accumulated on the rubber belt surface, and the problem of accumulated water retention is solved from the source.

Description

Technical Field

[0001] This invention relates to the field of underground belt conveyor technology in coal mines, specifically to a belt conveyor equipped with a submerged belt drainage device. Background Technology

[0002] In underground coal mining operations, belt conveyors are one of the most commonly used coal transportation equipment. Through the coordinated rotation of the drive roller, driven roller, and intermediate drive roller, they drive the conveyor belt in a cyclical manner, continuously transporting coal from the mining face to the surface or a designated location. However, the underground coal mine environment is unique. Coal seam mining is often accompanied by the seepage of large amounts of groundwater, or the coal itself has a high moisture content (such as wet coal or water-leached coal), causing moisture to continuously seep out during transportation. This moisture gradually accumulates on the conveyor belt, forming noticeable water accumulation.

[0003] The presence of water can cause the following problems: First, water will increase the operating load of the conveyor belt, leading to increased motor energy consumption; second, the wet and slippery surface of the belt can easily cause coal to slip and deviate, reducing the stability of the conveying process; more seriously, long-term water accumulation can corrode the belt skeleton layer and drive roller bearings, shorten the service life of the equipment, and even cause safety accidents (such as machine shutdowns or personnel slipping due to belt slippage).

[0004] Traditional solutions typically rely on manual, periodic cleaning of accumulated water (such as using scrapers or suction devices), but this method is inefficient, labor-intensive, and cannot handle dynamically generated water in real time, making it difficult to meet the needs of continuous production. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a belt conveyor with a sunken belt drainage device. By setting a sunken drainage structure between the drive rollers, the water can be automatically collected and quickly discharged, while ensuring the flatness of the conveyor belt surface. This balances drainage efficiency and conveying stability, and solves the problem of water accumulation affecting the belt conveying efficiency during underground coal mine transportation.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A belt conveyor equipped with a sunken belt drainage device includes a transversely arranged frame, with a drive roller and a driven roller installed at both ends of the frame, and multiple drive rollers installed between the drive roller and the driven roller. The conveyor belt is driven by the drive roller, drive rollers and driven rollers. The core improvement is that a sunken belt drainage device flush with the conveyor belt surface is installed between any two sets of drive rollers. The sunken belt drainage device includes a mounting frame, on which a drainage pipe parallel to the drive rollers and sinking and tensioning the conveyor belt is fixed. Multiple evenly distributed drainage holes are opened on the bottom wall of the drainage pipe.

[0007] By adopting the above solution, the sinking design of the drainage pipe causes the conveyor belt to sink partially when passing through the area, guiding the water to converge at the bottom of the drainage pipe. The drainage hole directly guides the water into the pipe, and then the water is discharged from the end of the drainage pipe, preventing water from accumulating on the surface of the conveyor belt and solving the problem of water retention at the source.

[0008] In a preferred embodiment of a belt conveyor equipped with a submerged belt drainage device, the submerged belt drainage device further includes a leveling assembly symmetrically distributed on both sides of the drainage pipe and connected to a mounting frame. The leveling assembly includes multiple leveling idlers located on the same horizontal plane, all of which are driven by a leveling belt in the same direction as the conveyor belt. A motor that drives the leveling idlers to rotate synchronously is fixed on the mounting frame. The leveling belt is flush with the surface of the conveyor belt, ensuring that coal is transported smoothly (without height difference) when transitioning from the conveyor belt to above the drainage pipe, thus preventing coal spillage. The motor-driven leveling belt can actively assist in coal transport, further reducing transport resistance.

[0009] As a preferred embodiment of a belt conveyor equipped with a sunken belt drainage device, each sunken belt drainage device has four drainage gaps for drainage. These four drainage gaps are formed at the junctions of two sets of filling belts with the conveyor belt and the drainage pipe. The gaps naturally guide the water to fall, achieving rapid water transfer by gravity without the need for additional power.

[0010] In a preferred embodiment of a belt conveyor equipped with a sunken belt drainage device, the conveying surface of the conveying belt, the leveling conveying surface, and the top surface of the drainage pipe are all located on the same horizontal plane. The material conveyed by the conveying belt crosses the drainage pipe along the conveying surface of the belt, and the material (coal) conveying surface remains horizontal to ensure continuous conveying. The water conveyed by the conveying belt falls from the drainage gap and flows into the drainage pipe through the drainage hole. Due to gravity, the water naturally converges to the lowest point (the top surface of the drainage pipe) and is discharged through the gap, thereby realizing the simultaneous "conveyor-drainage".

[0011] As a preferred embodiment of a belt conveyor equipped with a sunken belt drainage device, in order to clarify the relationship between the drainage gaps and facilitate targeted optimization of the drainage capacity of each gap, the four drainage gaps are designated as drainage gap A, drainage gap B, drainage gap C, and drainage gap D. Among them, drainage gap A and drainage gap D are drainage gaps formed by filling the junction of the belt and the conveyor belt, while drainage gap B and drainage gap C are drainage gaps formed by filling the junction of the belt and the drainage pipe.

[0012] In a preferred embodiment of a belt conveyor equipped with a sunken belt drainage device, drainage slots A and D are the main drainage slots, while drainage slots B and C are the auxiliary drainage slots. The width of the main drainage slots is greater than that of the auxiliary drainage slots. The main drainage slots handle the majority of the water flow (most of the water from the surface of the conveyor belt), while the auxiliary drainage slots assist in draining residual water (such as filling a small amount of water in the contact area between the belt and the drainage pipe). This differentiated design balances drainage efficiency and structural stability.

[0013] In a preferred embodiment of a belt conveyor equipped with a sunken belt drainage device, a water storage device is also installed on the frame directly below the sunken belt drainage device. The water storage device includes a frame fixed to the frame, a storage box fixed inside the frame, and a conveying pipe connected to the end of a drainage pipe on the side of the storage box. The water storage device can collect the discharged water in a centralized manner, preventing secondary dripping and pollution of the working environment. The storage box can be cleaned regularly or connected to a drainage system to achieve orderly management of the water.

[0014] As a preferred embodiment of a belt conveyor equipped with a submerged belt drainage device, a pump body can be selectively installed on the conveying pipe to accelerate the drainage of accumulated water; when the water flow rate is large, the pump body provides additional power to ensure that the water in the drainage pipe is discharged in time, and to prevent the water in the pipe from backflowing or blocking the drainage hole.

[0015] The beneficial effects of this invention are: 1. High-efficiency drainage: The recessed design of the drainage pipe causes the conveyor belt to partially sink when passing through the area, guiding the water to converge at the bottom of the drainage pipe. The drainage hole directly guides the water into the pipe, and then the water is discharged from the end of the drainage pipe, avoiding the accumulation of water on the surface of the conveyor belt and solving the problem of water retention at the source. 2. Continuous conveying: The surface of the filler belt is coplanar with that of the conveyor belt, ensuring uninterrupted or spilled coal conveying and guaranteeing production stability; 3. Structural integration: The drainage device is seamlessly connected to the main body of the belt conveyor, requiring no additional space and adaptable to the retrofitting of existing conveyors; 4. Flexible expansion: The water storage device can be connected to the pump body to adapt to different water flow requirements, and the drainage capacity is adjustable. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 For three-dimensional belt conveyors equipped with a submerged belt drainage device Figure 1 ; Figure 2 For three-dimensional belt conveyors equipped with a submerged belt drainage device Figure 2 ; Figure 3 for Figure 1 The three-dimensional structure of the section where the submerged conveyor belt drainage device and water storage device are located. Figure 1 ; Figure 4 for Figure 1 The three-dimensional structure of the section where the submerged conveyor belt drainage device and water storage device are located. Figure 2 ; Figure 5 To display along the circumference of the drainage pipe Figure 3 A three-dimensional diagram of the internal structure; Figure 6 To showcase Figure 5 A schematic diagram showing the location of the central drainage channels (A / B / C / D); Figure 7 To display along the axial direction of the drainage pipe Figure 3 A three-dimensional diagram of the internal structure.

[0018] The markings in the diagram are: 1-Frame; 2-Drive roller; 3-Driven roller; 4-Drive roller; 5-Conveyor belt; 6-Submerged belt drainage device; 61-Mounting frame; 62-Drainage pipe; 63-Drainage hole; 64-Leveling assembly; 641-Leveling idler roller; 642-Leveling belt; 65-Motor; 66-Drainage gap (A / B / C / D); 7-Drainage storage device; 71-Frame; 72-Storage tank; 73-Conveyor pipe; 74-Pump body. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] like Figures 1 to 5As shown, a belt conveyor with a sunken belt drainage device is provided for conveying coal. Specifically, it includes a horizontally arranged frame 1, with a drive roller 2 and a driven roller 3 installed at both ends of the frame 1. Multiple drive rollers 4 are installed between the drive roller 2 and the driven roller 3. The drive roller 2, drive rollers 4 and driven rollers 3 jointly drive the conveyor belt 5. The motor unit driving the drive roller 2 is hidden. A sunken belt drainage device 6, which is flush with the conveying surface of the conveyor belt 5, is installed between any two sets of drive rollers 4. The sunken belt drainage device includes a mounting frame 61. A drainage pipe 62, which is parallel to the drive rollers 4 and sinks and tensions the conveyor belt 5, is fixed on the mounting frame 61. Multiple evenly distributed drainage holes 63 are opened on the bottom wall of the drainage pipe 62. By designing the drainage pipe 62 to be lowered, the conveyor belt 5 is partially lowered when passing through this area, guiding the water to converge at the bottom of the drainage pipe 62. The drainage hole 63 directly guides the water into the pipe, and then the water is discharged from the end of the drainage pipe 62, thus preventing water from accumulating on the surface of the belt and solving the problem of water retention at the source.

[0021] like Figures 3 to 5 As shown, the sunken conveyor belt drainage device 6 also includes a leveling assembly 64 symmetrically distributed on both sides of the drainage pipe 62 and connected to the mounting frame 61. The leveling assembly 64 includes multiple leveling rollers 641 located on the same horizontal plane. All leveling rollers 641 are driven by a leveling belt 642 in the same direction as the conveyor belt 5. A motor 643 is fixed on the mounting frame 61 to drive the leveling rollers 641 to rotate synchronously. The leveling belt 642 is flush with the surface of the conveyor belt 5 to ensure that the coal is transported smoothly (without height difference) when it transitions from the conveyor belt 5 to above the drainage pipe 62, thus preventing coal spillage. The leveling belt 642 driven by the motor 643 can actively assist in the coal transport, further reducing the transport resistance.

[0022] Continue as Figures 3 to 5 As shown, each of the six sunken conveyor belt drainage devices has four drainage gaps 65 reserved for drainage. These four drainage gaps are formed at the junctions of the two sets of filling conveyor belts 642 with the conveyor belt 5 and the drainage pipe 62, respectively. The gaps naturally guide the water to fall, and the water can be quickly transferred by gravity without the need for additional power.

[0023] Continue as Figures 3 to 5As shown, the conveying surfaces of the conveyor belt 5, the leveling belt 642, and the top surface of the drainage pipe 62 are all located on the same horizontal plane. The material conveyed by the conveyor belt 5 is conveyed across the drainage pipe 62 along the conveyor surface, and the material (coal) conveying surface remains horizontal to ensure continuous conveying. The water conveyed by the conveyor belt 5 falls from the drainage gap and flows into the drainage pipe 62 through the drainage hole 63. Due to gravity, the water naturally converges to the lowest point (the top surface of the drainage pipe 62) and is discharged through the gap, thus realizing the synchronous operation of "conveying-drainage".

[0024] like Figure 6 As shown, in order to clarify the relationship between the drainage gaps and facilitate targeted optimization of the drainage capacity of each gap, the four water-accumulating drainage gaps 65 are water-accumulating drainage gap A, water-accumulating drainage gap B, water-accumulating drainage gap C, and water-accumulating drainage gap D. Among them, water-accumulating drainage gap A and water-accumulating drainage gap D are drainage gaps formed at the junction of the filling tape 642 and the conveyor tape 5, while water-accumulating drainage gap B and water-accumulating drainage gap C are drainage gaps formed at the junction of the filling tape 642 and the drainage pipe 62.

[0025] Continue as Figure 6 As shown, water drainage gaps A and D are the main drainage gaps, while water drainage gaps B and C are the auxiliary drainage gaps. The width of the main drainage gaps is greater than that of the auxiliary drainage gaps. The main drainage gaps handle the main water flow (most of the water from the surface of the conveyor belt 5), while the auxiliary drainage gaps help to drain residual water (such as filling a small amount of water in the contact area between the conveyor belt 642 and the drainage pipe 62). The differentiated design balances drainage efficiency and structural stability.

[0026] like Figure 7 As shown, a water storage device 7 is also installed on the frame 1, located directly below the sunken conveyor belt drainage device 6. The water storage device 7 includes a frame 71 that is fixed to the frame 1, and a storage tank 72 is fixed inside the frame 71. The side of the storage tank is connected to the end of the drainage pipe 62 through a conveying pipe 73. The water storage device 7 can collect the discharged water in a centralized manner, avoiding secondary dripping of water and pollution of the working environment. The storage tank 72 can be cleaned regularly or connected to the drainage system to achieve orderly management of the water.

[0027] Continue as Figure 7 As shown, a pump body 74 can be selectively installed on the conveying pipe 73 to accelerate the discharge of accumulated water; when the water flow rate is large, the pump body 74 provides additional power to ensure that the water in the drain pipe is discharged in time, and to prevent the water in the pipe from flowing back or blocking the drain hole 63.

[0028] The working principle of this belt conveyor equipped with a submerged belt drainage device: Normal conveying stage: The drive roller 2 drives the conveyor belt 5 to run, and the coal moves forward with the surface of the belt; the coal smoothly transitions to the top of the drainage pipe 62 through the filling belt 642 (coplanar with the conveyor belt 5), and then returns to the normal conveyor belt 5. There is no height difference throughout the process, ensuring the continuity of conveying. Water accumulation: When the conveyor belt 5 passes the sinking drainage device between the drive rollers 4, the belt sinks to the bottom of the drainage pipe 62; the water on the surface of the conveyor belt 5 (from coal seepage or environmental seepage) flows to the lowest point (bottom of the drainage pipe 62) due to gravity, and falls through the main drainage gap (A / D) between the drainage pipe 62 and the conveyor belt 5 and the auxiliary drainage gap (B / C) between the filling belt 642 and the drainage pipe 62 to the location of the drainage pipe 62, such as... Figure 6 As shown; Water drainage: The water flows into the pipe through the drain hole 63 on the bottom wall of the drainage pipe 62, and then is transferred to the storage tank 72 below through the conveying pipe 73; if the water flow is large, the pump body 74 can be started to accelerate drainage.

[0029] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A belt conveyor equipped with a submerged belt drainage device, comprising a transversely arranged frame, a drive roller and a driven roller respectively installed at both ends of the frame, and multiple drive rollers installed between the drive roller and the driven roller, wherein a conveyor belt is driven by the drive roller, drive rollers and driven rollers, characterized in that: A recessed belt drainage device, flush with the conveying surface of the conveyor belt, is installed between any two sets of drive rollers. The recessed belt drainage device includes a mounting frame, on which a drainage pipe, parallel to the drive rollers and lowering and tensioning the conveyor belt, is fixed. Multiple evenly distributed drainage holes are provided on the bottom wall of the drainage pipe.

2. The belt conveyor with a submerged belt drainage device according to claim 1, characterized in that, The sunken conveyor belt drainage device also includes a leveling component symmetrically distributed on both sides of the drainage pipe and connected to the mounting frame; the leveling component includes multiple leveling rollers located on the same horizontal plane, all leveling rollers are driven by a leveling conveyor belt in the same direction as the conveying conveyor belt, and a motor that drives the leveling rollers to rotate synchronously is fixed on the mounting frame.

3. The belt conveyor with a submerged belt drainage device according to claim 2, characterized in that, Each sunken conveyor belt drainage device has four drainage gaps reserved for water drainage. These four drainage gaps are formed at the junctions of the two sets of filling conveyor belts with the conveyor belt and the drainage pipe.

4. The belt conveyor with a submerged belt drainage device according to claim 3, characterized in that, The conveyor belt conveyor surface, the leveling conveyor belt conveyor surface, and the top surface of the drainage pipe are all located on the same horizontal plane; the material conveyed by the conveyor belt is conveyed across the drainage pipe along the conveyor belt conveyor surface, while the water conveyed by the conveyor belt falls from the drainage gap and flows into the drainage pipe through the drainage hole.

5. The belt conveyor with a submerged belt drainage device according to claim 3, characterized in that, The four drainage gaps are designated as drainage gap A, drainage gap B, drainage gap C, and drainage gap D. Drainage gaps A and D are drainage gaps formed at the junction of the filling tape and the conveyor belt, while drainage gaps B and C are drainage gaps formed at the junction of the filling tape and the drainage pipe.

6. The belt conveyor with a submerged belt drainage device according to claim 5, characterized in that, The water drainage joints A and D are the main drainage joints, and the water drainage joints B and C are the auxiliary drainage joints; the width of the main drainage joints is greater than the width of the auxiliary drainage joints.

7. The belt conveyor with a submerged belt drainage device according to claim 1, characterized in that, A water storage device is also installed on the frame, located directly below the sunken tape drainage device; the water storage device includes a frame that is fixed to the frame, a storage box is fixed inside the frame, and the side of the storage box is connected to the end of the drainage pipe through a conveying pipe.

8. The belt conveyor with a submerged belt drainage device according to claim 7, characterized in that, A pump can be selectively installed on the delivery pipe to accelerate the discharge of accumulated water.

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