Mechanical induction spraying device

Abstract

The utility model relates to a mechanical induction spraying device which comprises a liquid injection gun, a flexible induction contact and a spray head, the top of the flexible induction contact is connected with a control rod of the liquid injection gun, the bottom of the flexible induction contact falls above a belt conveyor, the liquid inlet end of the liquid injection gun is connected with a water source, and the liquid outlet end of the liquid injection gun is connected with the spray head. The nozzle is arranged corresponding to a lower bunker opening of a coal bunker, the liquid injection gun is connected with a roadway top plate through a first mounting assembly, the vertical distance between the liquid injection gun and the roadway top plate is adjustable, the nozzle is connected with the roadway top plate through a second mounting assembly, and the vertical distance between the nozzle and the roadway top plate and the pitching angle of the nozzle relative to the roadway top plate are adjustable. The technical problems that in the prior art, an electromagnetic switch valve is adopted for controlling spraying, the fault rate of the electromagnetic switch valve is high, and the spraying dust falling effect is poor can be solved.

Description

Technical Field

[0001] This utility model belongs to the field of dust suppression spray technology, specifically relating to a mechanical induction spray device. Background Technology

[0002] Belt conveyors are one of the main pieces of equipment for coal transportation. The dust generated during their operation not only has adverse effects on the environment but also poses a significant threat to workers' health. Therefore, various dust suppression spray devices are widely used in coal mine production as an important component of the underground safety system. Currently, most dust suppression spray devices use manual start-up and shutdown or electromagnetic switch valves. With the advancement of intelligent and unmanned mining, manual start-up and shutdown methods are gradually being phased out. Electromagnetic switch valves are mostly installed at the coal discharge port of underground coal bunkers (coal chutes), conveyor transfer points, and unloading points. However, the poor environment of belt conveyor tracks, characterized by high temperature and humidity, causes frequent failures of electromagnetic switch valves during use. For example, if the electromagnetic switch valve fails to open properly during startup, dust on the track cannot be effectively controlled, increasing the risk of coal dust explosions. If the electromagnetic switch valve fails to close properly during shutdown, a large amount of water accumulates above the conveyor belt, enters the coal bunker, and can lead to coal bunker pull-out accidents. Utility Model Content

[0003] In view of the shortcomings of existing technologies, a mechanical induction spray device is proposed to solve the technical problems of high failure rate of electromagnetic switch valve and poor dust suppression effect of spray control in existing technologies.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A mechanical induction spray device includes an injection gun, a flexible induction contact, and a nozzle. The top of the flexible induction contact is connected to the control rod of the injection gun, and the bottom of the flexible induction contact hangs above a belt conveyor. The inlet end of the injection gun is connected to a water source, and the outlet end of the injection gun is connected to the nozzle. The nozzle is positioned corresponding to the lower opening of the coal bunker. The injection gun is connected to the roadway roof via a first mounting assembly, and the vertical distance between the injection gun and the roadway roof is adjustable. The nozzle is connected to the roadway roof via a second mounting assembly, and the vertical distance between the nozzle and the roadway roof, as well as the pitch angle of the nozzle relative to the roadway roof, are adjustable.

[0006] The technical solution is further configured such that the flexible sensing contact includes three layers of rubber strips stacked in sequence, the middle layer of rubber strip has a groove for the end of the control rod to be inserted, and the three layers of rubber strips are connected by bolts.

[0007] The technical solution is further configured such that a connecting frame is provided around the control rod, the top of the flexible sensing contact is embedded in the internal cavity of the connecting frame, and the bolt passes through the connecting frame and the flexible sensing contact.

[0008] The technical solution is further configured such that the control rod is provided with a limiting block protruding from its body, and the connecting frame is located above the limiting block and the two abut against each other.

[0009] The technical solution is further configured such that the first mounting component includes a mounting frame, a first screw, and a second screw; the injection gun is provided with an ear seat embedded in the internal cavity of the mounting frame; the top of the mounting frame is connected to the tunnel roof via the first screw; and the bottom of the mounting frame is connected to the ear seat via the second screw.

[0010] The technical solution is further configured such that the first screw is arranged in a vertical direction, the top of the mounting bracket has a first through hole for the first screw to pass through, and a first nut is provided on the first screw and on both sides of the mounting bracket.

[0011] The technical solution is further configured such that the second screw is arranged in a horizontal direction, the bottom of the mounting bracket is provided with a second through hole, the ear seat is provided with an ear seat through hole, the second screw passes through the second through hole and the ear seat through hole in sequence and is locked by a second nut, and a gasket is provided between the mounting bracket and the ear seat.

[0012] The technical solution is further configured such that the second mounting component includes a mounting base, a mounting plate, and a connecting rod, the nozzle is mounted on the mounting plate, the middle part of the mounting plate is rotatably connected to the mounting base via the connecting rod, and the ends of the mounting plate are rotatably connected to the mounting base via a first hydraulic cylinder.

[0013] The technical solution is further configured such that the first hydraulic cylinder and the connecting rod are both arranged in the horizontal direction, and the mounting base is connected to the roadway roof through the second hydraulic cylinder, which is arranged in the vertical direction.

[0014] The beneficial effects of this utility model are:

[0015] The flexible sensor is connected to the control rod. When the coal bunker is discharging coal, the coal flow exerts a thrust on the flexible sensor, which in turn applies an external force to the control rod, causing the injection gun to open. Water flows through the injection gun to the nozzle to spray and suppress dust at the lower opening of the coal bunker. Compared with the traditional electromagnetic switch valve-controlled spraying, the mechanical sensor spraying has a low failure rate. The pitch angle of the nozzle relative to the roadway roof is adjustable, which can flexibly adjust the angle of the sprayed water mist to achieve the best dust suppression effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the mechanical induction spray device in an embodiment of this utility model;

[0017] Figure 2 This is a schematic diagram of the assembly of the flexible sensing contact and the control rod in an embodiment of this utility model;

[0018] Figure 3 This is an assembly diagram of the injection gun and the first mounting component in an embodiment of this utility model;

[0019] Figure 4 yes Figure 1 A partial schematic diagram of point A in the middle.

[0020] In the attached diagram: 1. Injection gun; 2. Flexible sensor contact; 3. Nozzle; 4. Belt conveyor; 5. Inlet pipe; 6. Outlet pipe; 7. Mounting bracket; 8. Second hydraulic cylinder; 9. Control lever; 10. Connecting bracket; 11. Bolt; 12. Limiting block; 13. Ear seat; 14. First screw; 15. First nut; 16. Second screw; 17. Washer; 18. Mounting base; 19. Connecting rod; 20. Mounting plate; 21. First hydraulic cylinder. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solution of this utility model, the technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Based on the embodiments in this application, other similar embodiments obtained by those skilled in the art without creative effort should all fall within the scope of protection of this application. Furthermore, directional terms mentioned in the following embodiments, such as "up," "down," "left," and "right," are only for reference to the directions in the accompanying drawings; therefore, the directional terms used are for illustrative purposes and not for limiting the invention.

[0022] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments.

[0023] According to an embodiment of this utility model, a mechanical induction spray device is provided. Please refer to [link / reference]. Figures 1 to 4 The system includes an injection gun 1, a flexible sensor 2, and a nozzle 3. The top of the flexible sensor 2 is connected to the control rod 9 of the injection gun, and the bottom of the flexible sensor 2 hangs down above the belt conveyor 4. The inlet end of the injection gun 1 is connected to a water source, and the outlet end of the injection gun 1 is connected to the nozzle 3. The nozzle 3 is set at the lower opening of the coal bunker. The injection gun 1 is connected to the roadway roof through a first mounting assembly, and the vertical distance between the injection gun 1 and the roadway roof is adjustable. The nozzle 3 is connected to the roadway roof through a second mounting assembly, and the vertical distance between the nozzle 3 and the roadway roof, as well as the pitch angle of the nozzle 3 relative to the roadway roof, are adjustable.

[0024] Specifically, the inlet end of the injection gun 1 is connected to the water source through the inlet pipe 5, and the outlet end of the injection gun 1 is connected to the nozzle 3 through the outlet pipe 6. At the same time, a hanging ring can be installed on the roof of the tunnel to suspend the inlet pipe 5 and the outlet pipe 6.

[0025] It should be noted that the flexible sensing contact 2 is connected to the control rod 9. When the coal bunker is discharging coal, the coal flow exerts a thrust on the flexible sensing contact 2, which in turn applies an external force to the control rod 9, causing the injection gun 1 to be in the open state. Water flows through the injection gun 1 to the nozzle 3 to spray and suppress dust at the lower opening of the coal bunker. Compared with the traditional electromagnetic switch valve controlling the spray, the mechanical sensing spray has a low failure rate. The pitch angle of the nozzle 3 relative to the roadway roof is adjustable, which can flexibly adjust the angle of the sprayed water mist to achieve the best dust suppression effect.

[0026] In the mechanical induction spray device of this embodiment, please refer to Figures 1 to 4 The flexible sensing contact 2 includes three layers of rubber strips stacked in sequence. The rubber strip in the middle layer has a slot for the end of the control rod 9 to be inserted. Bolts 11 connect the three layers of rubber strips.

[0027] It should be noted that the rubber strip in the middle layer is used to connect to the end of the control rod 9, and the rubber strips on both sides are used to clamp the rubber strip in the middle layer to achieve a stable connection between the flexible sensing contact 2 and the control rod 9; the rubber strip can bend with the flow direction of the coal, so as to avoid affecting the coal transportation while starting the spray.

[0028] In the mechanical induction spray device of this embodiment, please refer to Figures 1 to 4 A connecting frame 10 is provided around the control rod 9, and the top of the flexible sensing contact 2 is embedded in the internal cavity of the connecting frame 10. The bolt 11 passes through the connecting frame 10 and the flexible sensing contact 2.

[0029] It should be noted that the connecting frame 10 is designed with an inverted U-shape, which helps to improve the connection stability between the flexible sensing contact 2 and the control rod 9.

[0030] Specifically, the control rod 9 is provided with a limiting block 12 protruding from its body, and the connecting frame 10 is located above the limiting block 12 and the two abut against each other. When the coal flow exerts a thrust on the flexible sensing contact 2, the limiting block 12 can prevent the connecting frame 10, the flexible sensing contact 2 and the control rod 9 from separating.

[0031] In the mechanical induction spray device of this embodiment, please refer to Figures 1 to 4The first mounting assembly includes a mounting frame 7, a first screw 14, and a second screw 16. The injection gun 1 is provided with an ear seat 13 embedded in the internal cavity of the mounting frame 7. The top of the mounting frame 7 is connected to the tunnel roof through the first screw 14, and the bottom of the mounting frame 7 is connected to the ear seat 13 through the second screw 16.

[0032] It should be noted that the mounting bracket 7 is designed with an inverted U-shape. Adjusting the position of the mounting bracket 7 on the first screw 14 can adjust the height of the injection gun 1 and the flexible sensing contact 2 to meet actual needs.

[0033] In the mechanical induction spray device of this embodiment, please refer to Figures 1 to 4 The first screw 14 is arranged vertically, and the top of the mounting bracket 7 has a first through hole for the first screw 14 to pass through. A first nut 15 is provided on both sides of the first screw 14 and on both sides of the mounting bracket 7. Tightening the first nut 15 changes the relative position of the mounting bracket 7 and the first screw 14, thereby adjusting the height of the injection gun 1 and the flexible sensor contact 2. The two first nuts 15 are located on both sides of the mounting bracket 7, clamping and fixing the mounting bracket 7 in place.

[0034] In the mechanical induction spray device of this embodiment, please refer to Figures 1 to 4 The second screw 16 is arranged horizontally. A second through hole is provided at the bottom of the mounting bracket 7, and an ear seat through hole is provided on the ear seat 13. The second screw 16 passes through the second through hole and the ear seat through hole in sequence and is locked by a second nut. A washer 17 is provided between the mounting bracket 7 and the ear seat 13. If the ear seat 13 moves along the second screw 16, it will change the monitoring position of the flexible sensing contact 2. Therefore, to prevent the ear seat 13 from moving, the number of washer 17 can be increased according to the distance between the ear seat 13 and the mounting bracket 7 to achieve mutual abutment between the ear seat 13 and the mounting bracket 7.

[0035] In the mechanical induction spray device of this embodiment, please refer to Figures 1 to 4 The second mounting assembly includes a mounting base 18, a mounting plate 20, and a connecting rod 19. The nozzle 3 is mounted on the mounting plate 20. The middle part of the mounting plate 20 is rotatably connected to the mounting base 18 via the connecting rod 19. The ends of the mounting plate 20 are rotatably connected to the mounting base 18 via a first hydraulic cylinder 21.

[0036] Specifically, the mounting plate 20 is connected to the main water pipe via clamps, and the nozzle 3 is connected to the main water pipe via branch water pipes. Multiple nozzles 3 can be set to increase the water mist spray range and enhance the dust suppression effect.

[0037] It should be noted that the first hydraulic cylinder 21 and the connecting rod 19 are both arranged in the horizontal direction. The connection point between the connecting rod 19 and the mounting plate 20 serves as the fulcrum of the lever. When the extension and retraction directions of the two first hydraulic cylinders 21 are different, the mounting plate 20 rotates around the fulcrum to adjust the pitch angle of the nozzle 3 relative to the tunnel roof.

[0038] In the mechanical induction spray device of this embodiment, please refer to Figures 1 to 4 The mounting base 18 is connected to the tunnel roof via a second hydraulic cylinder 8, which is vertically oriented. The extension and retraction of the second hydraulic cylinder 8 adjusts the installation height of the mounting base 18 and the mounting plate 20 to meet actual usage requirements.

[0039] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made in accordance with the scope of this application should still fall within the scope of the present invention.

Claims

1. A mechanical induction spray device, characterized in that, The system includes an injection gun, a flexible sensor contact, and a nozzle. The top of the flexible sensor contact is connected to the control rod of the injection gun, and the bottom of the flexible sensor contact hangs down above the belt conveyor. The inlet end of the injection gun is connected to a water source, and the outlet end of the injection gun is connected to the nozzle. The nozzle is positioned corresponding to the lower opening of the coal bunker. The injection gun is connected to the roadway roof via a first mounting assembly, and the vertical distance between the injection gun and the roadway roof is adjustable. The nozzle is connected to the roadway roof via a second mounting assembly, and the vertical distance between the nozzle and the roadway roof, as well as the pitch angle of the nozzle relative to the roadway roof, are adjustable.

2. The mechanical induction spray device according to claim 1, characterized in that, The flexible sensing contact includes three layers of rubber strips stacked in sequence. The middle layer of rubber strip has a slot for the end of the control rod to be inserted into. Bolts connect the three layers of rubber strips.

3. The mechanical induction spray device according to claim 2, characterized in that, A connecting frame is provided around the control lever, and the top of the flexible sensing contact is embedded in the internal cavity of the connecting frame. The bolt passes through the connecting frame and the flexible sensing contact.

4. The mechanical induction spray device according to claim 3, characterized in that, The control lever is provided with a limiting block protruding from its body, and the connecting frame is located above the limiting block and the two abut against each other.

5. The mechanical induction spray device according to claim 1, characterized in that, The first mounting assembly includes a mounting bracket, a first screw, and a second screw. The injection gun is provided with an ear seat that is embedded in the internal cavity of the mounting bracket. The top of the mounting bracket is connected to the tunnel roof through the first screw, and the bottom of the mounting bracket is connected to the ear seat through the second screw.

6. The mechanical induction spray device according to claim 5, characterized in that, The first screw is arranged vertically, and the top of the mounting bracket has a first through hole for the first screw to pass through. The first screw is provided with a first nut on both sides of the mounting bracket.

7. The mechanical induction spray device according to claim 5 or 6, characterized in that, The second screw is arranged in a horizontal direction. The bottom of the mounting bracket is provided with a second through hole. The ear seat is provided with an ear seat through hole. The second screw passes through the second through hole and the ear seat through hole in sequence and is locked by the second nut. A gasket is provided between the mounting bracket and the ear seat.

8. The mechanical induction spray device according to claim 1, characterized in that, The second mounting assembly includes a mounting base, a mounting plate, and a connecting rod. The nozzle is mounted on the mounting plate. The middle part of the mounting plate is rotatably connected to the mounting base via the connecting rod. The ends of the mounting plate are rotatably connected to the mounting base via first hydraulic cylinders.

9. The mechanical induction spray device according to claim 8, characterized in that, The first hydraulic cylinder and the connecting rod are both arranged in the horizontal direction, and the mounting base is connected to the roadway roof through the second hydraulic cylinder, which is arranged in the vertical direction.

Images