Dust fall device for transfer point of underground coal conveying belt conveyor

Abstract

The utility model relates to the technical field of mining, in particular to a dust fall device for a transfer point of an underground coal conveying belt conveyor, which comprises a first belt conveyor and a second belt conveyor, a discharge end of the first belt conveyor is correspondingly connected with a feed end of a second belt conveyor, and a height difference is reserved between the first belt conveyor and the second belt conveyor. A sliding conveying mechanism is arranged between the discharging end of the first belt conveyor and the feeding end of the second belt conveyor, materials on the first belt conveyor fall on the sliding conveying mechanism, the vertical falling height of the materials is reduced, raised dust is reduced, the materials vertically slide to the second belt conveyor from the sliding conveying mechanism, the falling speed of the materials is slowed down, and the material conveying efficiency is improved. Flying dust generated in the material transferring process is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of mining, in particular to a dust reduction device for the transfer point of an underground coal conveying belt conveyor. Background Technique

[0002] Coal dust is one of the main disasters in coal mine production, mainly originating from the coal mine production process. Dust will be generated in production processes such as coal mining, tunneling, blasting, transportation, and hoisting. The harm of dust is great. Workers engaged in mining and dust operations for a long time are prone to pneumoconiosis. The line of sight of workers working in high-dust operation sites is easily blocked, and personal accidents are likely to occur during operation. Its greatest harm lies in the explosion hazard of coal dust, and coal dust explosion accidents are likely to occur, posing a great threat to the safe production of the mine. Therefore, effectively controlling dust, reducing dust concentration, improving the working environment, and preventing coal dust accidents are an important part of coal mine safety production.

[0003] Underground dust is generated in mining and excavation work. Usually, the focus of coal mine dust prevention work is placed on the mining and excavation working faces. However, a large amount of dust will also be generated during the transfer and transportation of coal underground. At present, the coal dust at the transfer points of each mine is generally dust-proofed by installing dust-proof covers. However, during the ore transportation process, due to the existence of relatively large ore blocks, the large ore blocks are easily stuck at the entrance of the dust-proof cover, resulting in the occurrence of stockpiling phenomena. For this reason, a dust reduction device for the transfer point of an underground coal conveying belt conveyor is proposed. Content of the Utility Model

[0004] The utility model aims to solve the above problems, thereby providing a dust reduction device for the transfer point of an underground coal conveying belt conveyor.

[0005] The technical solution adopted by the utility model to solve the above problems is as follows:

[0006] A dust reduction device for the transfer point of an underground coal conveying belt conveyor includes a first belt conveyor and a second belt conveyor. The discharge end of the first belt conveyor corresponds to and is connected to the feed end of the second belt conveyor, and there is a height difference between the two. A chute mechanism is arranged between the discharge end of the first belt conveyor and the feed end of the second belt conveyor, and the chute mechanism is arranged on the frame of the first belt conveyor or the second belt conveyor.

[0007] The utility model adopting the above technical solution, compared with the prior art, has the following prominent features:

[0008] The utility model arranges a chute mechanism between the discharge end of the first belt conveyor and the feed end of the second belt conveyor. The material on the first belt conveyor falls on the chute mechanism, reducing the vertical drop height of the material and reducing the generation of dust; the material slides down from the chute mechanism to the second belt conveyor, slowing down the falling speed of the material, so that the dust generated during the material transfer process is greatly reduced.

[0009] Preferably, a further technical solution of the present utility model is as follows:

[0010] Furthermore, the chute conveying mechanism is arranged on the frame of the second belt conveyor and includes a chute located above the second belt conveyor. The top end of the chute is inclined towards the discharge end of the first belt conveyor. Support rods are arranged on the left and right end faces of the chute. The bottom ends of the support rods extend downward below the bottom end of the chute and are respectively hinged to the ends of the sliding strips arranged on both sides of the frame of the second belt conveyor. The sliding strips can slide left and right along the length direction of the frame of the second belt conveyor. A telescopic rod is hinged between the other end of the sliding strip and the support rod; it is convenient to adjust the inclination angle of the chute so that the chute conveying mechanism can be adapted to transfer materials between two belt conveyors with different height differences.

[0011] Furthermore, a setscrew is arranged on the sliding strip. After the setscrew is tightened, its end abuts against the frame of the second belt conveyor; to fix the sliding strip and ensure the stability of the chute conveying mechanism.

[0012] Furthermore, a spraying mechanism is arranged above the discharge end of the first belt conveyor; to spray the materials about to be transferred, wet the surface of the materials, and reduce the generation of dust.

[0013] Furthermore, the spraying mechanism includes a main spraying pipeline and a secondary spraying pipeline. The main spraying pipeline is supported above the first belt conveyor through a fixing rod. A first fine mist nozzle is connected and communicated below the middle section of the main spraying pipeline. The secondary spraying pipeline is in an L shape. The vertical section is connected and communicated with the main spraying pipeline. The horizontal section is located above the chute and its end is connected and communicated with a second fine mist nozzle; to perform secondary spraying on the materials separated from the first belt conveyor and at the same time spray and remove the dust generated during the fall.

[0014] Furthermore, the second fine mist nozzle is connected to the end of the horizontal section of the secondary spraying pipeline through a right-angle elbow, and a rotatable seal is provided between the right-angle elbow and the end of the horizontal section of the secondary spraying pipeline; to facilitate adjusting the spraying direction of the second fine mist nozzle.

[0015] Furthermore, baffle plates are vertically arranged on the left and right sides of the chute perpendicular to the top surface of the chute. The distance between the ends of the two baffle plates close to the first belt conveyor is greater than or equal to the belt width of the first belt conveyor, and the distance between the ends of the two baffle plates close to the second belt conveyor is less than or equal to the belt width of the second belt conveyor; to block the falling materials and at the same time prevent the generated dust from spreading to both sides. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main structure of an embodiment of the present utility model;

[0017] Figure 2 It is a schematic diagram of the main structure of the chute conveying mechanism of an embodiment of the present utility model;

[0018] Figure 3 Schematic diagram of the main structure of the spray mechanism in the embodiment of the present utility model;

[0019] In the figure, the markings are: the first belt conveyor 1, the second belt conveyor 2, the chute feeding mechanism 3, the spray mechanism 4, the chute plate 3-1, the support rod 3-2, the slide bar 3-3, the telescopic rod 3-4, the baffle plate 3-5, the setscrew 3-6, the main spray pipe 4-1, the auxiliary spray pipe 4-2, the fixed rod 4-3, the first fine mist nozzle 4-4, the second fine mist nozzle 4-5, and the right-angle elbow 4-6. Specific embodiments

[0020] The present utility model will be further described below in conjunction with embodiments. The purpose is only to better understand the content of the present utility model. Therefore, the examples given do not limit the protection scope of the present utility model.

[0021] See Figures 1 - 3 , a dust reduction device for the transfer point of an underground coal conveying belt conveyor, including a first belt conveyor 1 and a second belt conveyor 2. The discharge end of the first belt conveyor 1 corresponds to and is connected to the feeding end of the second belt conveyor 2, and there is a height difference between the two. A chute feeding mechanism 3 is arranged between the discharge end of the first belt conveyor 1 and the feeding end of the second belt conveyor 2, and the chute feeding mechanism 3 is arranged on the frame of the first belt conveyor 1 or the second belt conveyor 2.

[0022] Furthermore, the chute feeding mechanism 3 is arranged on the frame of the second belt conveyor 2, including a chute plate 3-1 located above the second belt conveyor 2. The top end of the chute plate 3-1 is inclined towards the discharge end of the first belt conveyor 1. Support rods 3-2 are arranged on the left and right end faces of the chute plate 3-1. The bottom ends of the support rods 3-2 extend downward below the bottom end of the chute plate 3-1 and are respectively hinged to the ends of the slide bars 3-3 arranged on both sides of the frame of the second belt conveyor 2. The slide bars 3-3 can slide left and right along the length direction of the frame of the second belt conveyor 2. A telescopic rod 3-4 is hinged between the other end of the slide bar 3-3 and the support rod 3-2; it is convenient to adjust the inclination angle of the plate 3-1 so that the chute feeding mechanism 3 can be adapted to transfer and use two belt conveyors with different height differences.

[0023] Furthermore, setscrews 3-6 are arranged on the slide bars 3-3. After the setscrews 3-6 are tightened, the ends thereof abut against the frame of the second belt conveyor 2; to fix the slide bars 3-3 and ensure the stability of the chute feeding mechanism 3.

[0024] Furthermore, a spray mechanism 4 is arranged above the discharge end of the first belt conveyor 1; to spray the material to be transferred, wet the surface of the material, and reduce the generation of dust.

[0025] Further, the spraying mechanism 4 includes a main spraying pipeline 4-1 and a secondary spraying pipeline 4-2. The main spraying pipeline 4-1 is supported above the first belt conveyor 1 through a fixing rod 4-3. A first fine mist nozzle 4-4 is connected and communicated below the middle section of the main spraying pipeline 4-1. The secondary spraying pipeline 4-2 is in an "I" shape. The vertical section is connected and communicated with the main spraying pipeline 4-1. The horizontal section is located above the sliding plate 3-1 and a second fine mist nozzle 4-5 is connected and communicated at the end. The materials separated from the first belt conveyor 1 are spray-sprayed for the second time, and at the same time, the dust generated by the falling is sprayed and dust-removed.

[0026] Further, the second fine mist nozzle 4-5 is connected to the end of the horizontal section of the secondary spraying pipeline 4-2 through a right-angle elbow 4-6, and a rotatable seal is provided between the right-angle elbow 4-6 and the end of the horizontal section of the secondary spraying pipeline 4-2, which is convenient for adjusting the spraying direction of the second fine mist nozzle 4-5.

[0027] Further, baffle plates 3-5 are vertically arranged on the left and right sides of the sliding plate 3-1 perpendicular to the top surface of the sliding plate 3-1. The distance between the ends of the two baffle plates 3-5 close to the first belt conveyor 1 is greater than or equal to the belt width of the first belt conveyor 1, and the distance between the ends of the two baffle plates close to the second belt conveyor 2 is less than or equal to the belt width of the second belt conveyor 2. The falling materials are blocked, and at the same time, the generated dust can be prevented from spreading to both sides.

[0028] When the utility model is in use, by adjusting the sliding strip 3-3 and the telescopic rod 3-4, the top end of the plate 3-1 is close to the turning section of the belt of the first belt conveyor 1 to ensure that the materials on the first belt conveyor 1 fall above the sliding plate 3-1. Then, the spraying angle of the second fine mist nozzle 4-5 is adjusted so that the second fine mist nozzle 4-5 sprays on the materials falling on the top surface of the sliding plate 3-1. When the materials are conveyed from the first belt conveyor 1 to the second belt conveyor, the first fine mist nozzle 44 first sprays on the materials to wet the surface of the materials and reduce the amount of dust generated when the materials fall. The materials fall on the plate 3-1, reducing the vertical falling height of the materials and reducing the generation of dust again. At the same time, the second fine spray 4-5 sprays on the materials separated from the first belt conveyor 1 and falling on the sliding plate 3-1 for the second time, and sprays and dust-removes the dust generated by the falling, and the dust-removing effect is good.

[0029] The utility model provides a conveying mechanism between the discharge end of the first belt conveyor and the feed end of the second belt conveyor. The materials on the first belt conveyor fall on the conveying mechanism, reducing the vertical falling height of the materials and reducing the generation of dust. The materials fall from the conveying mechanism to the second belt conveyor, slowing down the falling speed of the materials, and greatly reducing the dust generated during the material transfer process.

[0030] The above are only the preferred and feasible embodiments of the present utility model, and thus do not limit the scope of rights of the present utility model. Any equivalent changes made by using the content of the specification and drawings of the present utility model are included within the scope of rights of the present utility model.

Claims

1. A dust reduction device for a transfer point of an underground coal conveyor belt conveyor, comprising a first belt conveyor and a second belt conveyor, wherein the discharge end of the first belt conveyor is correspondingly connected to the feed end of the second belt conveyor, and a height difference is left between the two, characterized in that : A sliding mechanism is arranged between the discharge end of the first belt conveyor and the feed end of the second belt conveyor, and the sliding mechanism is arranged on the frame of the first belt conveyor or the second belt conveyor.

2. The dust suppression device for the transfer point of an underground coal conveyor belt conveyor according to claim 1 is characterized in that The sliding mechanism is arranged on the frame of the second belt conveyor, including a sliding plate located above the second belt conveyor, the top of the sliding plate is inclined toward the discharge end of the first belt conveyor, and support rods are arranged on the left and right end surfaces of the sliding plate, the bottom end of the support rod extends to the bottom of the plate, and is respectively hinged to the end of the slide bar arranged on both sides of the frame of the second belt conveyor, the slide bar can slide left and right along the length direction of the frame of the second belt conveyor, and a telescopic rod is hinged between the other end of the slide bar and the support rod.

3. The dust suppression device for the transfer point of underground coal conveyor belt conveyor according to claim 2, characterized in that A top screw is arranged on the slide bar, and after the top screw is tightened, the end thereof abuts against the frame of the second belt conveyor.

4. The dust suppression device for the transfer point of an underground coal conveyor belt conveyor according to claim 3 is characterized in that : A spray mechanism is arranged above the discharging end of the first belt conveyor.

5. The dust suppression device for the transfer point of underground coal conveyor belt conveyor according to claim 4, characterized in that : The spray mechanism includes a main spray pipe and an auxiliary spray pipe. The main spray pipe is supported above the first belt conveyor by a fixed rod, and the first fine mist nozzle is connected below the middle section of the main spray pipe; the auxiliary spray pipe is L-shaped, the vertical section is connected to the main spray pipe, the horizontal section is located above the slide and the end is connected to the second fine mist nozzle.

6. The dust suppression device for the transfer point of underground coal conveyor belt conveyor according to claim 5, characterized in that The second fine mist nozzle is connected to the horizontal section end of the auxiliary spray pipe through a right-angle elbow, and a rotatable seal can be formed between the right-angle elbow and the horizontal section end of the auxiliary spray pipe.

7. The dust suppression device for the transfer point of underground coal conveyor belt conveyor according to claim 2, characterized in that : Material baffles are arranged on the left and right sides of the slide perpendicular to the top surface of the slide, the distance between the ends of the two material baffles close to the first belt conveyor is greater than or equal to the belt width of the first belt conveyor, and the distance between the ends of the two material baffles close to the second belt conveyor is less than or equal to the belt width of the second belt conveyor.

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