Automatic spraying and dust settling device of thin seam belt conveyor

Abstract

The utility model discloses an automatic spraying and dust settling device for a thin seam belt conveyor, which comprises a support, a water spraying pipe is connected onto the support, one end of the water spraying pipe is closed, and the other end of the water spraying pipe is connected with a rubber pipe. A front supporting transverse plate and a rear supporting transverse plate are detachably connected between the top ends of the two supporting rod units on the front side and the rear side correspondingly. The front supporting transverse plate and the rear supporting transverse plate are downwards connected with front supporting arc-shaped plates and rear supporting arc-shaped plates correspondingly. The front supporting arc-shaped plate and the rear supporting arc-shaped plate support the water spraying pipe. A plurality of atomizing nozzles are mounted at the bottom end of the water spraying pipe at intervals; the front supporting transverse plate and the rear supporting transverse plate are upwards connected with threading pipes through pressing fixing pieces. A pipe clamping electromagnetic valve is arranged on the rubber pipe; and the front end of the threading pipe is bent downwards and is connected with a dust sensor. According to the utility model, the starting and stopping of the spraying and dust-settling operation can be automatically controlled, the spraying and dust-settling operation is more targeted, and the consumption of water resources is minimized. The device is convenient to disassemble and assemble, and the operation position can be conveniently moved along with advancing of the working face.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine operation, in particular to a device for coping with coal dust hazards generated when a thin coal seam belt conveyor is working. Background Art

[0002] Belt conveyors are indispensable devices for transporting coal blocks in thin coal seam mining working faces. During the transportation of coal blocks, the coal blocks will be worn and broken due to extrusion, generating dust. Coal may fall on the conveyor belt, generating a lot of dust. Airflow and vibration in the working environment can also cause dust. In short, belt conveyors may generate a lot of dust when working. In order to deal with the dust phenomenon, dust reduction measures are often set up for belt conveyors in the prior art, such as negative pressure suction, spray dust reduction, and covering dust reduction.

[0003] Since there are unstable factors in the generation of dust such as coal scattering, airflow and vibration, the belt conveyor will not necessarily generate a large amount of dust all the time.

[0004] The probability of dust exceeding the standard is not the same at all locations on a belt conveyor. The conveyor has transfer points, where large amounts of dust are more likely to be generated.

[0005] The belt conveyor will move as the work surface advances to maintain a suitable distance and angle with the work surface. The transfer point of the belt conveyor will also change position accordingly to ensure smooth transportation.

[0006] Existing spray dust suppression has the following shortcomings:

[0007] 1. The start time of spray dust suppression is determined manually, and it often runs continuously for a long time. Even if there is no obvious dust on the belt conveyor for a period of time due to dust-generating factors such as coal scattering, airflow and vibration, spray dust suppression will continue, resulting in a waste of energy and water resources.

[0008] Second, the fixed installation structure, when the belt conveyor and its transfer point move, it is not easy to change the position of the spray dust suppression device. If the fixed installation structure is cancelled, it is difficult to ensure the stability of the spray dust suppression device. Utility Model Content

[0009] The utility model aims to provide an automatic spray dust reduction device for a thin coal seam belt conveyor, which is easy to disassemble and install, can automatically monitor the dust condition at the installation location and start the spray dust reduction operation in time.

[0010] To achieve the above purpose, the utility model of the automatic spray dust reduction device for the thin coal seam belt conveyor comprises a bracket, a water spray pipe is connected to the bracket, one end of the water spray pipe is closed and the other end is connected to a rubber tube, the rubber tube is used to connect to the water supply pipeline in the coal mine.

[0011] The bracket includes 4 support rod units, which are respectively fixed to the tunnel ground on both sides of the belt conveyor; the extension direction of the water spray pipe is the front and rear direction;

[0012] A front support cross plate is detachably connected between the top ends of the two support rod units located at the opposite front sides, and a front support arc plate is connected downwardly to the front support cross plate.

[0013] A rear support horizontal plate is detachably connected between the top ends of two support rod units located at opposite rear sides, and a rear support arc plate is downwardly connected to the rear support horizontal plate;

[0014] The front supporting arc plate and the rear supporting arc plate support the water spray pipe; a plurality of atomizing nozzles are installed at intervals at the bottom end of the water spray pipe;

[0015] The front supporting transverse plate and the rear supporting transverse plate are upwardly connected with a threading tube through a pressing fixing plate;

[0016] A tube clamping solenoid valve is arranged on the rubber tube; the front end of the threading tube is bent downward and connected with a dust sensor, and both the dust sensor and the tube clamping solenoid valve are connected with a controller; the dust sensor is installed at the top of the pedestrian passage on both sides of the belt conveyor.

[0017] The controller is fixed in the wire conduit.

[0018] The four support rod units have the same structure, and all include a vertical rod, the bottom of which is connected to a counterweight block for supporting the tunnel ground, and the counterweight block is connected downward to a stab structure for piercing the tunnel ground to enhance stability;

[0019] The rear support cross plate and the front support cross plate are collectively referred to as the support cross plate. The support cross plate is connected upward with two screws, and the wire threading tube passes between the two screws. The left and right sides of the clamping fixing plate are provided with through holes for the screws to pass through. The screws pass through the through holes on the clamping fixing plate and are connected with compression nuts. The compression nuts press the clamping fixing plate onto the support cross plate from top to bottom.

[0020] The utility model has the following advantages:

[0021] The utility model automatically controls the opening and closing of the spray dust reduction operation through the signal of the dust sensor, thereby avoiding the problems of resource waste and failure to timely reduce dust caused by manual control.

[0022] In the utility model, the dust sensor is installed at the top of the pedestrian walkways on both sides of the belt conveyor. The spray dust reduction is not turned on before the dust affects the pedestrian walkways, so that the spray dust reduction operation is more targeted and the consumption of water resources is minimized.

[0023] In the utility model, the bracket, the water spray pipe and the wire threading pipe are all modular and detachable structures, which are easy to disassemble and install, so that after the working surface is advanced, the belt conveyor and its transfer point are moved, the utility model can be conveniently moved to a new working position accordingly.

[0024] By controlling the clamping degree of the rubber tube by the tube clamping solenoid valve, the atomization degree and the spraying speed of the water mist can be adjusted, which has high flexibility.

[0025] The controller is fixed in the pipeline to avoid being affected by the dust generated by the belt conveyor during operation and to extend its service life.

[0026] The counterweight lowers the center of gravity of the bracket, thereby enhancing the overall structural stability; the stab structure enhances the grip of the utility model. When installing, force is applied downward (such as hitting the counterweight) to make the stab structure pierce the tunnel ground, making the utility model very stable. When moving the utility model, the vertical rod is pulled downward to pull the stab structure away from the tunnel ground. Installation and disassembly are relatively convenient, and the structure is very stable after installation.

[0027] The matching structure between the pressing fixing plate, the threading tube and the supporting horizontal plate is convenient for installation and disassembly, and after installation, the threading tube can be pressed and fixed on the supporting horizontal plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the utility model.

[0029] Figure 2 It is a three-dimensional structural schematic diagram of the utility model after removing the stab structure. DETAILED DESCRIPTION

[0030] like Figure 1 and Figure 2 As shown, the automatic spray dust reduction device for a thin coal seam belt conveyor of the utility model includes a bracket, to which a water spray pipe 1 is connected. One end of the water spray pipe 1 is closed and the other end is connected to a rubber tube 2. The rubber tube 2 is used to connect to an underground water supply pipeline in a coal mine, and the underground water supply pipeline in the coal mine provides water with a certain water pressure.

[0031] The bracket includes 4 support rod units, which are respectively fixed to the tunnel ground on both sides of the belt conveyor; the extension direction of the water spray pipe 1 is the front-to-back direction;

[0032] A front support cross plate 3 is detachably connected between the top ends of the two support rod units located at the opposite front sides, and a front support arc plate 4 is connected downwardly to the front support cross plate 3.

[0033] A rear support horizontal plate 5 is detachably connected between the top ends of the two support rod units located at the opposite rear sides, and a rear support arc plate 6 is downwardly connected to the rear support horizontal plate 5;

[0034] The front supporting arc plate 4 and the rear supporting arc plate 6 support the water spray pipe 1; a plurality of atomizing nozzles 14 are installed at intervals at the bottom end of the water spray pipe 1;

[0035] The front support transverse plate 3 and the rear support transverse plate 5 are connected with a threading tube 8 upwardly through a pressing fixing plate 7;

[0036] A tube clamping solenoid valve 9 is provided on the rubber tube 2; the front end of the threading tube 8 is bent downward and connected to a dust sensor, and the dust sensor and the tube clamping solenoid valve 9 are both connected to a controller; (the controller preferably adopts a single-chip microcomputer, which is a conventional technology and is not shown in the figure because it is blocked by the threading tube 8) The installation position of the dust sensor is located at the top of the pedestrian walkway on both sides of the belt conveyor.

[0037] The utility model automatically controls the opening and closing of the spray dust reduction operation through the signal of the dust sensor, thereby avoiding the problems of resource waste and failure to timely reduce dust caused by manual control.

[0038] In the utility model, the dust sensor is installed at the top of the pedestrian walkways on both sides of the belt conveyor. The spray dust reduction is not turned on before the dust affects the pedestrian walkways, so that the spray dust reduction operation is more targeted and the consumption of water resources is minimized.

[0039] In the utility model, the bracket, the water spray pipe 1 and the threading pipe 8 are all modular and detachable structures, which are easy to disassemble and install, so that after the working surface is advanced, the belt conveyor and its transfer point are moved, the utility model can be conveniently moved to a new working position accordingly.

[0040] By controlling the clamping degree of the rubber tube 2 by the tube clamping solenoid valve 9, the atomization degree and the spraying speed of the water mist can be adjusted, which has high flexibility.

[0041] The controller is fixed in the threading tube 8, which can avoid being affected by the dust generated when the belt conveyor is working, thereby extending the service life.

[0042] The four support rod units have the same structure, and all include a vertical rod 10, a counterweight block 11 for supporting the tunnel ground is connected at the bottom of the vertical rod 10, and a stab structure 12 for piercing the tunnel ground to enhance stability is connected downwardly to the counterweight block 11;

[0043] The rear support cross plate 5 and the front support cross plate 3 are collectively referred to as support cross plates. The support cross plate is connected upward with two screws 13, and the threading tube 8 passes between the two screws 13. The left and right sides of the clamping fixing plate 7 have through holes for the screws 13 to pass through. The screws 13 pass through the through holes on the clamping fixing plate 7 and are connected with compression nuts. The compression nuts press the clamping fixing plate 7 against the support cross plate from top to bottom.

[0044] The counterweight 11 lowers the center of gravity of the bracket, thereby enhancing the overall structural stability; the stab structure 12 enhances the grip of the utility model. When installing, force is applied downward (such as hitting the counterweight 11) to make the stab structure 12 pierce the tunnel ground, making the utility model very stable. When moving the utility model, the vertical rod 10 is pulled downward to pull the stab structure 12 away from the tunnel ground. Installation and disassembly are relatively convenient, and the structure is very stable after installation.

[0045] The matching structure between the pressing fixing sheet 7, the threading tube and the supporting transverse plate is convenient for installation and disassembly. After installation, the threading tube 8 can be pressed and fixed on the supporting transverse plate.

[0046] The utility model is mounted on the belt conveyor in the form of a gantry, and the preferred installation position is near the transfer point. Of course, multiple sets of the utility model of the thin coal seam belt conveyor automatic spray dust reduction device can also be arranged at intervals along the length direction of the belt conveyor.

[0047] When working, the utility model automatically monitors the dust condition at the belt conveyor through the dust sensor. When the dust concentration exceeds a predetermined threshold (the dust sensor is selected according to the predetermined threshold), the dust sensor sends a signal to the electronic control device, and the electronic control device controls the working state of the pinch valve, so that the water flows into the water spray pipe 1 through the rubber tube 2, and then sprays downward to the belt conveyor through the atomizing nozzle 14 to perform a spray dust reduction operation. During the spray dust reduction operation, when the dust concentration is lower than the predetermined threshold, the dust sensor no longer sends a signal to the controller, and the controller closes the pinch valve to stop the spray dust reduction operation.

[0048] The above embodiments are only used to illustrate rather than limit the technical solutions of the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art should understand that the present invention can still be modified or replaced by equivalents. Any modification or partial replacement that does not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. An automatic spray dust suppression device for a thin coal seam belt conveyor includes a bracket, a water spray pipe is connected to the bracket, one end of the water spray pipe is closed and the other end is connected to a rubber pipe, and the rubber pipe is used to connect to the water supply pipeline underground in the coal mine. Features: The bracket includes 4 support rod units, which are respectively fixed to the tunnel ground on both sides of the belt conveyor; the extension direction of the water spray pipe is the front and rear direction; A front support cross plate is detachably connected between the top ends of the two support rod units located at the opposite front sides, and a front support arc plate is connected downwardly to the front support cross plate. A rear support horizontal plate is detachably connected between the top ends of two support rod units located at opposite rear sides, and a rear support arc plate is downwardly connected to the rear support horizontal plate; The front supporting arc plate and the rear supporting arc plate support the water spray pipe; a plurality of atomizing nozzles are installed at intervals at the bottom end of the water spray pipe; The front supporting transverse plate and the rear supporting transverse plate are upwardly connected with a threading tube through a pressing fixing plate; A tube clamping solenoid valve is arranged on the rubber tube; the front end of the threading tube is bent downward and connected with a dust sensor, and both the dust sensor and the tube clamping solenoid valve are connected with a controller; the dust sensor is installed at the top of the pedestrian passage on both sides of the belt conveyor.

2. The automatic spray dust suppression device for a thin coal seam belt conveyor according to claim 1 is characterized in that: The controller is fixed in the wire conduit.

3. The automatic spray dust suppression device for a thin coal seam belt conveyor according to claim 1 or 2, characterized in that: The four support rod units have the same structure, and all include a vertical rod, the bottom of which is connected to a counterweight block for supporting the tunnel ground, and the counterweight block is connected downward to a stab structure for piercing the tunnel ground to enhance stability; The rear support cross plate and the front support cross plate are collectively referred to as the support cross plate. The support cross plate is connected upward with two screws, and the wire threading tube passes between the two screws. The left and right sides of the clamping fixing plate are provided with through holes for the screws to pass through. The screws pass through the through holes on the clamping fixing plate and are connected with compression nuts. The compression nuts press the clamping fixing plate onto the support cross plate from top to bottom.

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