Dust fall spraying device for coal mining

Abstract

The invention relates to the technical field of coal mining, in particular to a dust fall spraying device for coal mining, which comprises a base, a transverse adjusting assembly is arranged at the upper end of the base, a spraying pipe assembly is arranged at the upper end of the transverse adjusting assembly, and a driving assembly is fixedly connected to one end of the spraying pipe assembly. A plurality of dust collection assemblies are annularly arranged on the driving assembly, an ejector rod triggering assembly is arranged at one end of the driving assembly, air flows to the other end of the air pipe along the spiral air duct from a cavity formed by the air pipe, the spiral air duct and the fixed pipe and flows out of an air outlet of the spray head, and water is sprayed out from a water outlet through the spiral water channel. Gas forms vortex airflow through a spiral air duct, the contact time of dust and atomized water particles is prolonged, the fine dust capture rate is improved, a separated channel design is adopted, air-water interference is avoided through independent cavities of an air pipe and a fixed pipe, an air outlet and a water outlet of a spray head are coaxially arranged, the airflow wraps water mist to be sprayed, and the covering radius is enlarged.

Description

Technical Field

[0001] The present invention relates to the technical field of coal mining, and particularly to a dust reduction spraying device for coal mining. Background Technique

[0002] Coal mining will generate varying degrees of dust and coal dust. When conditions are met, coal dust will explode, causing huge losses to personnel and property. At the same time, the generation of coal dust and dust will affect the visibility of the mining environment, the progress of mining operations and cause certain harm to the physical health of workers; There is a spraying device for coal mining with the existing publication number: CN115585009A, which includes a water tank. A spraying mechanism is provided in the middle of the upper surface of the water tank. A dust suction mechanism is provided above the spraying mechanism. A water collection component is provided on the outer side of the upper surface of the water tank. A water permeable hole is opened on the upper surface of the water tank. A filter layer is provided in the upper part of the inner cavity of the water tank. The spraying mechanism includes a pump box and a circular spraying box. The circular spraying box is fixedly connected to the upper part of the pump box. The present invention relates to the technical field of coal mining. For this spraying device for coal mining, when the water flow passes through the turbine groove, the water flow direction generates dynamic potential energy, causing the turbine to rotate, making the dust suction cylinder rotate above the circular spraying box. At the same time, the gear rotates along the toothed ring with the dust suction cylinder, so that the transmission drives the dust suction fan blades to rotate rapidly. Furthermore, the air inlet of the dust suction cylinder absorbs the dust in the coal mine by 360 degrees, enabling the device to perform effective dust removal over the largest area and further accelerating the treatment of dust; Most of the existing spraying devices rely on manual or fixed program control, and the area covered by spraying is small, resulting in an insignificant dust reduction effect. Summary of the Invention

[0003] The purpose of the present invention is to provide a dust reduction spraying device for coal mining to solve the problems raised in the above background technique.

[0004] To achieve the above-mentioned invention purpose, the present invention adopts the following technical scheme: Provide a dust reduction spraying device for coal mining, including a base. A horizontal adjustment component is provided at the upper end of the base. A spraying pipe component is provided at the upper end of the horizontal adjustment component. A trigger mechanism is provided at the upper end of the horizontal adjustment component. A vertical adjustment component is provided at the upper end of the horizontal adjustment component; among them The trigger mechanism includes: A driving component, the driving component is fixedly connected to one end of the spraying pipe component. A plurality of dust suction components are annularly arranged on the driving component. A push rod trigger component is provided at one end of the driving component.

[0005] Furthermore, the horizontal adjustment component includes: Motor 1 is fixedly connected to the upper end of the base. A bevel gear is fixedly connected to the output end of Motor 1. A driving shaft is rotatably connected to the base. A bevel gear is fixedly connected to the driving shaft. The two bevel gears are meshed. A workbench is fixedly connected to the upper end of the driving shaft.

[0006] Furthermore, the spray pipe assembly includes: An air duct is rotatably connected to the workbench. A number of spiral air ducts are fixedly connected to the inner wall of the air duct. A fixed pipe is fixedly connected inside the air duct. The outer sides of the number of spiral air ducts are fixedly connected to the fixed pipe. Connectors are fixedly connected to both ends of the fixed pipe. The two connectors are respectively fixedly connected to both ends of a number of water pipes. A number of spiral water channels are fixedly connected to the inner walls of the number of water pipes. A nozzle is fixedly connected to one end of the air duct. An air outlet is opened at the edge of the nozzle, and a water outlet is opened at the central position of the nozzle.

[0007] Furthermore, the driving component includes: A first ring is fixedly connected to the other end of the air duct. A circular pipe is fixedly connected to the inner wall of the first ring. A number of first air inlets are opened on the first ring. An installation groove is opened on the outer edge of the first ring. A toothed ring is rotatably connected in the installation groove. The outer edge of the toothed ring is meshed with a first gear. The first gear is fixedly connected to the output end of Motor 2.

[0008] Furthermore, each of the number of dust suction components includes: A dust suction pipe is provided with a second air inlet. An auger is rotatably connected inside the dust suction pipe. One end of the auger is fixedly connected to a second gear. The second gear is meshed with the toothed ring. A fan blade is also fixedly connected to one end of the auger. A filter screen is fixedly connected inside the dust suction pipe. The auger is rotatably connected to the filter screen.

[0009] Furthermore, the top rod trigger component includes: A second ring is provided with a number of sliding grooves. One end of the dust suction pipe is fixedly connected to the sliding groove. A slider is slidably connected in the sliding groove. The slider is fixedly connected to a triangular top block. One side of the second ring is fixedly connected to one end of a corrugated pipe. A connecting ring is fixedly connected to the workbench. A number of first top rods are slidably connected to the connecting ring. Springs are sleeved on the first top rods. One end of the first top rod is fixedly connected to a triangular top block. The two triangular top blocks are in contact. A number of pressing switches are fixedly connected to the connecting ring.

[0010] Furthermore, the longitudinal adjustment component includes: Double-cone water pipe, one end of the double-cone water pipe is fixedly connected to the other end of the corrugated pipe, a hydraulic pipe is connected to the middle position of the double-cone water pipe, a piston is slidably connected inside the hydraulic pipe, one end of the piston is fixedly connected to one end of the first connecting rod, the other end of the first connecting rod is slidably connected to one end of the second connecting rod, the other end of the second connecting rod is rotatably connected to one end of the third connecting rod, the other end of the third connecting rod is rotatably connected to the air duct, and the second connecting rod is rotatably connected to the workbench.

[0011] Compared with the prior art, the above one or more technical solutions have the following beneficial effects: 1. The gas flows along the spiral air duct from the cavity formed by the air duct, the spiral air duct and the fixed pipe to the other end of the air duct, and flows out from the air outlet of the nozzle. The water sprays out from the water outlet through the spiral water channel. The gas forms a vortex airflow through the spiral air duct, prolonging the contact time between the dust and the atomized water particles, improving the capture rate of fine dust. Separate channel design: The air duct and the fixed pipe have independent cavities to avoid air-water interference. The air outlet of the nozzle and the water outlet are coaxially arranged, so that the airflow wraps the water mist and sprays, and the coverage radius is enlarged.

[0012] 2. As the dust increases, the dust exerts a squeezing force on the slider, thereby pushing the slider to move. At the same time, the triangular top block fixedly connected to the slider moves, so that the other triangular top block drives the first ejector rod to move, and the spring is compressed at the same time. When one end of the first ejector rod touches the switches on the left and right sides, the first motor starts, causing the air duct to rotate left or right. When there is more dust on both the left and right sides, the switches on both the left and right sides are turned on at the same time. At this time, the first motor rotates forward and backward to drive the air duct to rotate left and right reciprocally. When the first ejector rod touches the switches on the upper and lower sides, when the slider moves to the rightmost end of the dust suction pipe, the dust leaks from the gap between the slider and the right end of the dust suction pipe. By increasing or decreasing the water flow rate, the air duct is deflected upward or downward, and by sensing environmental parameters such as dust concentration, the spraying intensity or direction is dynamically adjusted. Description of the Drawings

[0013] The specification drawings forming a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention.

[0014] In addition, the terms "installed", "set", "provided with", "connected", "connected to", "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication between two devices, components or parts. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0015] Figure 1Schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 Front view of the overall three-dimensional structure of the present invention; Figure 3 Schematic diagram of the overall three-dimensional structure of the spray pipe assembly of the present invention; Figure 4 Exploded schematic diagram of the overall three-dimensional structure of the spray pipe assembly of the present invention; Figure 5 Cross-sectional view of the overall three-dimensional structure of the water pipe of the present invention; Figure 6 Cross-sectional view of the overall three-dimensional structure of the air duct of the present invention; Figure 7 Schematic diagram of the overall three-dimensional structure of the trigger mechanism of the present invention; Figure 8 Schematic diagram of the overall three-dimensional structure of the dust suction assembly of the present invention; Figure 9 Exploded schematic diagram of the overall three-dimensional structure of the dust suction assembly of the present invention; Figure 10 Schematic diagram of the overall three-dimensional structure of the push rod trigger assembly of the present invention; Figure 11 Exploded schematic diagram of the overall three-dimensional structure of the push rod trigger assembly of the present invention; Figure 12 Schematic diagram of the overall three-dimensional structure of the longitudinal adjustment assembly of the present invention; Figure 13 Exploded schematic diagram of the overall three-dimensional structure of the longitudinal adjustment assembly of the present invention In the drawings, the list of components represented by each reference numeral is as follows: 1. Base; 2. Transverse adjustment assembly; 21. Motor 1; 22. Bevel gear; 23. Driving shaft; 24. Workbench; 3. Spray pipe assembly; 31. Air duct; 32. Spiral air duct; 33. Fixed pipe; 34. Connector; 35. Water pipe; 36. Spiral water channel; 37. Nozzle; 4. Trigger mechanism; 41. Driving assembly; 411. Ring 1; 412. Circular pipe; 413. Tooth ring; 414. Gear 1; 415. Motor 2; 42. Dust suction assembly; 421. Dust suction pipe; 4211. Second air inlet; 422. Auger; 423. Gear 2; 424. Fan blade; 425. Filter screen; 43. Push rod trigger assembly; 431. Ring 2; 4311. Slide groove; 432. Slide block; 433. Triangular top block; 434. Connecting ring; 435. Push rod 1; 436. Spring; 437. Push button switch; 5. Longitudinal adjustment assembly; 51. Double-conical water pipe; 52. Hydraulic pipe; 53. Piston; 54. Link 1; 55. Link 2; 56. Link 3. Detailed implementation manners

[0016] To enable those skilled in the art to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0017] Refer to Figure 1-2 As shown, a dust reduction spraying device for coal mine excavation includes a base 1. A horizontal adjustment assembly 2 is provided at the upper end of the base 1. A spraying pipe assembly 3 is provided at the upper end of the horizontal adjustment assembly 2. A trigger mechanism 4 is provided at the upper end of the horizontal adjustment assembly 2. A vertical adjustment assembly 5 is provided at the upper end of the horizontal adjustment assembly 2; wherein The trigger mechanism 4 includes: A driving assembly 41. The driving assembly 41 is fixedly connected to one end of the spraying pipe assembly 3. A plurality of dust suction assemblies 42 are annularly arranged on the driving assembly 41. A push rod trigger assembly 43 is provided at one end of the driving assembly 41.

[0018] During spraying, water sequentially enters the spraying pipe assembly 3 through the vertical adjustment assembly 5 and then sprays out from the spraying pipe assembly 3. At the same time, the driving assembly 41 drives the dust suction assemblies 42 to suck air. The air mixed with dust enters the dust suction assemblies 42. By driving the dust suction assemblies 42 to rotate through the driving assembly 41, the air flows out from one end of the dust suction assemblies 42, and the dust is pushed to the other end, so that the dust pushes the push rod trigger assembly 43.

[0019] The horizontal adjustment assembly 2 includes: A first motor 21. The first motor 21 is fixedly connected to the upper end of the base 1. The output end of the first motor 21 is fixedly connected with a bevel gear 22. A driving shaft 23 is rotatably connected to the base 1. A bevel gear 22 is fixedly connected to the driving shaft 23. The two bevel gears 22 are engaged. A workbench 24 is fixedly connected to the upper end of the driving shaft 23.

[0020] The rotation of the motor drives the rotation of a bevel gear 22 fixedly connected thereto. Through the meshing action of the two bevel gears 22, the driving shaft 23 is driven to rotate. Through the rotation of the driving shaft 23, the workbench 24 is driven to rotate.

[0021] Refer to Figure 3-6 As shown, the spraying pipe assembly 3 includes: Air duct 31, the air duct 31 is rotatably connected to the workbench 24, and a plurality of spiral air ducts 32 are fixedly connected to the inner wall of the air duct 31. A fixed pipe 33 is fixedly connected inside the air duct 31. The outer sides of the plurality of spiral air ducts 32 are fixedly connected to the fixed pipe 33. Connectors 34 are fixedly connected to both ends of the fixed pipe 33. The two connectors 34 are respectively fixedly connected to both ends of a plurality of water pipes 35. A plurality of spiral water channels 36 are fixedly connected to the inner walls of the plurality of water pipes 35. One end of the air duct 31 is fixedly connected to a spray head 37. An air outlet is provided at the edge of the spray head 37, and a water outlet is provided at the central position of the spray head 37.

[0022] Gas flows along the spiral air duct 32 from the cavity formed by the air duct 31, the spiral air duct 32 and the fixed pipe 33 to the other end of the air duct 31 and flows out from the air outlet of the spray head 37. Water is sprayed out from the water outlet through the spiral water channel 36.

[0023] Refer to Figure 7 As shown, the drive assembly 41 includes: A first ring 411, the first ring 411 is fixedly connected to the other end of the air duct 31. A circular pipe 412 is fixedly connected to the inner wall of the first ring 411. A plurality of first air inlets are provided on the first ring 411. An installation groove is provided on the outer edge of the first ring 411. A toothed ring 413 is rotatably connected in the installation groove. The outer edge of the toothed ring 413 meshes with a first gear 414. The first gear 414 is fixedly connected to the output end of a second motor 415.

[0024] Water enters the spiral water channel 36 of the water pipe 35 from the circular pipe 412. By starting the second motor 415, the second motor 415 drives the first gear 414 fixedly connected thereto to rotate, and then the toothed ring 413 rotates.

[0025] Refer to Figure 8-9 As shown, each of the plurality of dust collection assemblies 42 includes: A dust collection pipe 421, an air inlet two 4211 is provided on the dust collection pipe 421. An auger 422 is rotatably connected inside the dust collection pipe 421. One end of the auger 422 is fixedly connected to a second gear 423. The second gear 423 meshes with the toothed ring 413. A fan blade 424 is also fixedly connected to one end of the auger 422. A filter screen 425 is fixedly connected inside the dust collection pipe 421. The auger 422 is rotatably connected to the filter screen 425.

[0026] By rotating the toothed ring 413, the second gear 423 meshing with it is driven to rotate, and then the fan blade 424 is driven to rotate, so that the air with dust enters the dust suction pipe 421 from the second air inlet 4211. Through the action of the fan blade 424, the air with dust flows to the spiral air duct 32. The dust is filtered through the action of the filter screen 425, and then through the action of the auger 422, the dust is conveyed to the other end of the dust suction pipe 421.

[0027] Referring to Figure 10-11 As shown, the ejector trigger assembly 43 includes: The second ring 431, on which several sliding grooves 4311 are formed. One end of the dust suction pipe 421 is fixedly connected to the sliding groove 4311. A slider 432 is slidably connected in the sliding groove 4311. The slider 432 is fixedly connected to a triangular ejector block 433. One side of the second ring 431 is fixedly connected to one end of the bellows. A connecting ring 434 is fixedly connected to the workbench 24. Several first ejector rods 435 are slidably connected to the connecting ring 434. A spring 436 is sleeved on the first ejector rod 435. One end of the first ejector rod 435 is fixedly connected to a triangular ejector block 433. The two triangular ejector blocks 433 are in contact. Several push switches 437 are fixedly connected to the connecting ring 434.

[0028] As the dust increases, the dust exerts a squeezing force on the slider 432, thereby pushing the slider 432 to move. At the same time, the triangular ejector block 433 fixedly connected to the slider 432 moves, so that the other triangular ejector block 433 drives the first ejector rod 435 to move. At the same time, the spring 436 is compressed. When one end of the first ejector rod 435 touches the switches on the left and right sides, the first motor 21 is started, so that the air duct 31 rotates to the left or right. When the first ejector rod 435 touches the switches on the upper and lower sides, the water flow rate is increased or decreased to control the upward or downward deflection of the air duct 31.

[0029] Referring to Figure 12-13 As shown, the longitudinal adjustment assembly 5 includes: The double-conical water pipe 51, one end of which is fixedly connected to the other end of the bellows. A hydraulic pipe 52 is connected to the middle position of the double-conical water pipe 51. A piston 53 is slidably connected in the hydraulic pipe 52. The piston 53 is fixedly connected to one end of the first connecting rod 54. The other end of the first connecting rod 54 is slidably connected to one end of the second connecting rod 55. The other end of the second connecting rod 55 is rotatably connected to one end of the third connecting rod 56. The other end of the third connecting rod 56 is rotatably connected to the air duct 31. The second connecting rod 55 is rotatably connected to the workbench 24.

[0030] When water passes through the middle position of the double-cone water pipe 51, the flow velocity increases, causing the air pressure below the piston 53 in the hydraulic pipe 52 to be low, so that the liquid above the piston 53 pushes the piston 53 downward, thereby driving the first connecting rod 54 downward, causing the second connecting rod 55 to rotate, and further causing the second connecting rod 55 to drive the third connecting rod 56 to deflect. The rotation of the air duct 31 is driven by the deflection of the third connecting rod 56.

[0031] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the communication inside two elements. It can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0032] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A dust reduction spraying device for coal mine mining, characterized in that: It includes a base (1), a horizontal adjustment component (2) is provided at the upper end of the base (1), a spray pipe component (3) is provided at the upper end of the horizontal adjustment component (2), a trigger mechanism (4) is provided at the upper end of the horizontal adjustment component (2), and a vertical adjustment component (5) is provided at the upper end of the horizontal adjustment component (2); wherein The trigger mechanism (4) includes: A drive component (41), the drive component (41) is fixedly connected to one end of the spray pipe component (3), a plurality of dust suction components (42) are annularly arranged on the drive component (41), and a push rod trigger component (43) is provided at one end of the drive component (41).

2. The dust reduction spraying device for coal mine mining according to claim 1, characterized in that: The horizontal adjustment component (2) includes: A first motor (21), the first motor (21) is fixedly connected to the upper end of the base (1), the output end of the first motor (21) is fixedly connected to a bevel gear (22), a driving shaft (23) is rotatably connected to the base (1), a bevel gear (22) is fixedly connected to the driving shaft (23), the two bevel gears (22) are meshed, and a workbench (24) is fixedly connected to the upper end of the driving shaft (23).

3. The dust reduction spraying device for coal mine mining according to claim 2, characterized in that: The spray pipe component (3) includes: An air pipe (31), the air pipe (31) is rotatably connected to the workbench (24), a plurality of spiral air ducts (32) are fixedly connected to the inner wall of the air pipe (31), a fixed pipe (33) is fixedly connected to the air pipe (31), the outer sides of the plurality of spiral air ducts (32) are fixedly connected to the fixed pipe (33), connectors (34) are fixedly connected to both ends of the fixed pipe (33), the two connectors (34) are respectively fixedly connected to both ends of a plurality of water pipes (35), a plurality of spiral water channels (36) are fixedly connected to the inner walls of the plurality of water pipes (35), a nozzle (37) is fixedly connected to one end of the air pipe (31), an air outlet is opened at the edge of the nozzle (37), and a water outlet is opened at the central position of the nozzle (37).

4. The dust reduction spraying device for coal mine mining according to claim 3, characterized in that: The drive component (41) includes: A first ring (411), the first ring (411) is fixedly connected to the other end of the air pipe (31), a circular pipe (412) is fixedly connected to the inner wall of the first ring (411), a plurality of first air inlets are opened on the first ring (411), an installation groove is opened on the outer edge of the first ring (411), a toothed ring (413) is rotatably connected in the installation groove, the outer edge of the toothed ring (413) is meshed with a first gear (414), and the first gear (414) is fixedly connected to the output end of a second motor (415).

5. The dust reduction spraying device for coal mine mining according to claim 4, characterized in that: Each of the plurality of dust suction components (42) includes: A dust suction pipe (421) is provided with a second air inlet (4211). A screw conveyor (422) is rotatably connected inside the dust suction pipe (421). One end of the screw conveyor (422) is fixedly connected to a second gear (423). The second gear (423) meshes with a toothed ring (413). One end of the screw conveyor (422) is also fixedly connected to a fan blade (424). A filter screen (425) is fixedly connected inside the dust suction pipe (421). The screw conveyor (422) is rotatably connected to the filter screen (425).

6. The dust reduction spraying device for coal mine excavation according to claim 5, characterized in that: The ejector rod triggering assembly (43) includes: A second ring (431) is provided with a plurality of sliding grooves (4311). One end of the dust suction pipe (421) is fixedly connected to the sliding groove (4311). A slider (432) is slidably connected inside the sliding groove (4311). The slider (432) is fixedly connected to a triangular ejector block (433). One side of the second ring (431) is fixedly connected to one end of a corrugated pipe. A connecting ring (434) is fixedly connected to the workbench (24). A plurality of first ejector rods (435) are slidably connected to the connecting ring (434). A spring (436) is sleeved on the first ejector rod (435). One end of the first ejector rod (435) is fixedly connected to a triangular ejector block (433). The two triangular ejector blocks (433) are in contact. A plurality of push switches (437) are fixedly connected to the connecting ring (434).

7. The dust reduction spraying device for coal mine excavation according to claim 6, characterized in that: The longitudinal adjustment assembly (5) includes: A double-cone water pipe (51), one end of the double-cone water pipe (51) is fixedly connected to the other end of the corrugated pipe. A hydraulic pipe (52) is connected to the middle position of the double-cone water pipe (51). A piston (53) is slidably connected inside the hydraulic pipe (52). The piston (53) is fixedly connected to one end of a first connecting rod (54). The other end of the first connecting rod (54) is slidably connected to one end of a second connecting rod (55). The other end of the second connecting rod (55) is rotatably connected to one end of a third connecting rod (56). The other end of the third connecting rod (56) is rotatably connected to an air pipe (31). The second connecting rod (55) is rotatably connected to the workbench (24).

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