Open blasting dust falling device

Abstract

The utility model relates to the technical field of spraying dust fall, in particular to an open blasting dust fall device.An adjusting device comprises a rotating column, a U-shaped support is fixedly installed on the surface of the top of the rotating column, a rotating shaft is rotationally connected between the inner walls of the two ends of the U-shaped support, and a motor is fixedly installed on the surface of one side of the U-shaped support; a rotating plate is fixedly mounted on the surface of the outer wall of the rotating shaft, a spraying pipe is fixedly mounted on the surface of the top of the rotating plate, a water inlet pipe is fixedly mounted at a port of one end of the spraying pipe, a sliding groove is formed in the surface of the bottom plate, a sliding plate is slidably connected into the sliding groove, and a rack is fixedly mounted on the surface of the sliding plate; and an electric telescopic rod is fixedly mounted on the surface of the supporting plate. The utility model solves the problems that the existing blasting dust-settling treatment device for the open pit coal mine can only adjust the pitching angle of a spray pipe, the orientation of the spray pipe cannot be changed, the whole device needs to be moved if the orientation needs to be changed, and time and labor are wasted.

Description

Technical Field

[0001] The utility model relates to the technical field of spraying dust reduction, in particular to an open-pit blasting dust reduction device. Background Technique

[0002] A coal mine is an area where humans mine coal resources in coal-rich mining areas, generally divided into underground coal mines and open-pit coal mines. When the coal seam is far from the surface, generally choose to dig tunnels underground to mine coal, this is an underground coal mine. When the distance between the coal seam and the surface is very close, generally choose to directly strip the surface soil layer to dig coal, this is an open-pit coal mine. Generally, when it is difficult to excavate the soil layer, blasting is used to break the soil layer. Although this method can quickly break the soil layer, a large amount of dust will be generated in this process. For this reason, spray equipment is generally used to reduce dust with water mist.

[0003] There is an existing open-pit coal mine blasting dust reduction treatment device with the publication number of CN220955695U. This patent uses a moving lead screw to drive the transmission seat to move along its axis, and then uses a support arm to exert a force on the fan, so that the entire spray pipe can rotate, realizing the adjustment of the angle of the spray pipe, and then being able to adjust the inclination angle according to different use sites. Therefore, its applicability is stronger.

[0004] The inventor found in daily work that the above-mentioned open-pit coal mine blasting dust reduction treatment device can only adjust the pitching angle of the spray pipe and cannot change the orientation of the spray pipe. If the orientation needs to be changed, the entire device needs to be moved, which is time-consuming and laborious, so the device still has certain limitations in specific use. Content of the Utility Model

[0005] The purpose of the utility model is to solve the technical problems in the above background, and to propose an open-pit blasting dust reduction device.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme: an open-pit blasting dust reduction device, including a bottom plate, four pulleys are fixedly installed at the bottom of the bottom plate, an adjusting device is arranged on the surface of the bottom plate, the adjusting device includes a rotating column, the rotating column is rotatably connected to the surface of the bottom plate, a U-shaped bracket is fixedly installed on the top surface of the rotating column, a rotating shaft is rotatably connected between the inner walls of both ends of the U-shaped bracket, a motor is fixedly installed on one side surface of the U-shaped bracket, and the output end of the motor is fixedly connected to the rotating shaft. The setting of the motor plays the role of driving the rotating shaft to rotate.

[0007] Preferably, a rotating plate is fixedly installed on the outer wall surface of the rotating shaft, a spray pipe is fixedly installed on the top surface of the rotating plate, a water inlet pipe is fixedly installed at one end port of the spray pipe, and a nozzle is arranged at the end of the spray pipe far from the water inlet pipe. The setting of the rotating plate plays the role of driving the spray pipe to rotate.

[0008] Preferably, a chute is provided on the surface of the bottom plate. A sliding plate is slidably connected inside the chute. A rack is fixedly installed on the surface of the sliding plate. A gear is fixedly installed on the outer wall surface of the rotating column. The rack and the gear mesh with each other. The setting of the gear plays an effect of driving the rotating column to rotate, and the setting of the rack plays an effect of driving the gear to rotate.

[0009] Preferably, a support plate is fixedly installed on the surface of the bottom plate. An electric telescopic rod is fixedly installed on the surface of the support plate. The output end of the electric telescopic rod is fixedly connected to the sliding plate. The setting of the electric telescopic rod plays an effect of driving the sliding plate to move inside the chute.

[0010] Preferably, a dust-proof device is provided on the outer wall surface of the spray pipe. The dust-proof device includes a dust-proof sleeve. The dust-proof sleeve is sleeved on the outer wall surface of the spray pipe. A positioning plate is fixedly installed on the outer wall surface of the dust-proof sleeve. A positioning hole is provided on the surface of the positioning plate. A vertical rod is fixedly installed on the outer wall surface of the spray pipe. A moving plate is slidably connected to the surface of the vertical rod. A positioning rod is fixedly installed on the surface of the moving plate. The setting of the positioning rod and the positioning hole plays an effect of limiting the dust-proof sleeve on the outer wall surface of the spray pipe.

[0011] Preferably, a circular plate is fixedly installed on the surface of the vertical rod away from the spray pipe. A spring is fixedly installed between the circular plate and the moving plate. The setting of the spring plays an effect of limiting the position of the moving plate on the surface of the vertical rod.

[0012] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0013] 1. In the present utility model, by providing an adjusting device, when the device needs to be used, first use the pulley to move the device to a suitable location. Then, when it is necessary to adjust the spraying pitch angle of the spray pipe according to the actual situation, first start the motor. The motor drives the rotating shaft to rotate when starting. The rotating shaft drives the rotating plate to rotate when rotating. The rotating plate drives the spray pipe to rotate when rotating. The spray pipe rotates to change its own pitch angle. When the pitch angle of the spray pipe is adjusted, when it is necessary to adjust the orientation of the spray pipe, first start the electric telescopic rod. The electric telescopic rod drives the sliding plate to move inside the chute when starting. The sliding plate moves inside the chute to drive the rack to move. The rack moves and meshes with the gear, and then the gear rotates. The gear rotates to drive the rotating column to rotate. The rotating column rotates to drive the U-shaped bracket to rotate. The U-shaped bracket rotates to finally drive the spray pipe to rotate, thus completing the orientation of the spray pipe. When the orientation of the spray pipe is adjusted, the water inlet pipe can be connected to external water pumps and other devices, so that water can be conveyed into the inside of the spray pipe and then sprayed out from the inside of the spray pipe to complete the corresponding dust reduction operation. Through the cooperation of the above structures, the spray angle of the spray pipe is flexibly adjustable, with strong flexibility, and is suitable for open-air sites with a large and non-concentrated dust generation range.

[0014] 2. In the present utility model, by providing a dust-proof device, when it is necessary to dust-proof the nozzle of the spray pipe, first slide the moving plate so that the moving plate moves on the surface of the vertical rod. The movement of the moving plate on the surface of the vertical rod will compress the spring, causing the spring to be compressed under force. At the same time, the movement of the moving plate on the surface of the vertical rod also drives the positioning rod to move. When the positioning rod moves to a suitable position, then the dust-proof sleeve is sleeved on the outer wall surface of the spray pipe. When the positioning hole on the positioning plate on the outer wall surface of the dust-proof sleeve and the positioning rod are in the same vertical plane, then release the moving plate, and use the resilience of the spring to reset the positioning rod. The reset of the positioning rod causes it to insert into the interior of the positioning hole by itself. The positioning rod and the positioning hole are plugged together, thereby limiting and fixing the dust-proof sleeve on the outer wall surface of the spray pipe, dust-proofing the nozzle of the spray pipe, preventing the nozzle of the spray pipe from being exposed outside, and being easily contaminated with dust and causing nozzle blockage when not in use, which will have an adverse impact on the next spraying and dust reduction operation. Description of the Drawings

[0015] Figure 1 is a schematic three-dimensional structure diagram of an open-pit blasting dust reduction device proposed by the present utility model;

[0016] Figure 2 is a schematic left view structure diagram of an open-pit blasting dust reduction device proposed by the present utility model;

[0017] Figure 3 is an open-pit blasting dust reduction device proposed by the present utility model Figure 1 the structure diagram at A in;

[0018] Figure 4 is an open-pit blasting dust reduction device proposed by the present utility model Figure 2 the structure diagram at B in;

[0019] Legend Explanation:

[0020] 1. Bottom plate; 2. Pulley; 3. Adjusting device; 301. Rotating column; 302. U-shaped bracket; 303. Rotating shaft; 304. Motor; 305. Rotating plate; 306. Spray pipe; 307. Chute; 308. Slide plate; 309. Rack; 310. Gear; 311. Support plate; 312. Electric telescopic rod; 313. Water inlet pipe; 4. Dust-proof device; 41. Dust-proof sleeve; 42. Positioning plate; 43. Positioning hole; 44. Vertical rod; 45. Moving plate; 46. Positioning rod; 47. Round plate; 48. Spring. Detailed Embodiment

[0021] In order to more clearly understand the above-mentioned objects, features, and advantages of the present utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0022] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited to the limitations of the specific embodiments disclosed in the following specification.

[0023] Please refer to Figures 1-4 , the present utility model provides a technical solution: an open-pit blasting dust reduction device, including a bottom plate 1, and four pulleys 2 are fixedly installed at the bottom of the bottom plate 1.

[0024] Next, the specific settings and functions of its adjustment device 3 and dust prevention device 4 will be specifically described.

[0025] In this embodiment: an adjustment device 3 is provided on the surface of the bottom plate 1. The adjustment device 3 includes a rotating column 301, the rotating column 301 is rotatably connected to the surface of the bottom plate 1, a U-shaped bracket 302 is fixedly installed on the top surface of the rotating column 301, a rotating shaft 303 is rotatably connected between the inner walls of both ends of the U-shaped bracket 302, a motor 304 is fixedly installed on one side surface of the U-shaped bracket 302, and the output end of the motor 304 is fixedly connected to the rotating shaft 303.

[0026] In this embodiment: the setting of the motor 304 plays an effect of driving the rotating shaft 303 to rotate.

[0027] Specifically, a rotating plate 305 is fixedly installed on the outer wall surface of the rotating shaft 303, a spray pipe 306 is fixedly installed on the top surface of the rotating plate 305, a water inlet pipe 313 is fixedly installed at one end port of the spray pipe 306, and a nozzle is provided at the end of the spray pipe 306 away from the water inlet pipe 313.

[0028] In this embodiment: the setting of the rotating plate 305 plays an effect of driving the spray pipe 306 to rotate.

[0029] Specifically, a chute 307 is opened on the surface of the bottom plate 1, a sliding plate 308 is slidably connected inside the chute 307, a rack 309 is fixedly installed on the surface of the sliding plate 308, a gear 310 is fixedly installed on the outer wall surface of the rotating column 301, and the rack 309 and the gear 310 are meshed with each other. The setting of the gear 310 plays an effect of driving the rotating column 301 to rotate, and the setting of the rack 309 plays an effect of driving the gear 310 to rotate.

[0030] Specifically, a support plate 311 is fixedly installed on the surface of the bottom plate 1, an electric telescopic rod 312 is fixedly installed on the surface of the support plate 311, and the output end of the electric telescopic rod 312 is fixedly connected to the sliding plate 308. The electric telescopic rod 312 functions to drive the sliding plate 308 to move inside the sliding groove 307.

[0031] In this embodiment: A dust-proof device 4 is provided on the outer wall surface of the nozzle pipe 306. The dust-proof device 4 includes a dust-proof sleeve 41 which is sleeved on the outer wall surface of the nozzle pipe 306. A positioning plate 42 is fixedly installed on the outer wall surface of the dust-proof sleeve 41, and a positioning hole 43 is formed on the surface of the positioning plate 42. A vertical rod 44 is fixedly installed on the outer wall surface of the nozzle pipe 306, and a moving plate 45 is slidably connected to the surface of the vertical rod 44. A positioning rod 46 is fixedly installed on the surface of the moving plate 45. When it is necessary to dust-proof the nozzle of the nozzle pipe 306, first slide the moving plate 45 so that the moving plate 45 moves on the surface of the vertical rod 44. The moving plate 45 moving on the surface of the vertical rod 44 will compress the spring 48, causing the spring 48 to be compressed under force. At the same time, the moving plate 45 moving on the surface of the vertical rod 44 also drives the positioning rod 46 to move. When the positioning rod 46 moves to a suitable position, then the dust-proof sleeve 41 is sleeved on the outer wall surface of the nozzle pipe 306. When the positioning hole 43 on the positioning plate 42 on the outer wall surface of the dust-proof sleeve 41 and the positioning rod 46 are in the same vertical plane, then release the moving plate 45, and use the resilience of the spring 48 to reset the positioning rod 46. The positioning rod 46 resets and then inserts itself into the interior of the positioning hole 43. The positioning rod 46 and the positioning hole 43 are inserted and connected, thereby limiting and fixing the dust-proof sleeve 41 on the outer wall surface of the nozzle pipe 306 to dust-proof the nozzle of the nozzle pipe 306, preventing the nozzle of the nozzle pipe 306 from being exposed outside, and being prone to dust contamination and nozzle blockage when not in use, which will have an adverse impact on the next spraying and dust reduction operation.

[0032] Specifically, a circular plate 47 is fixedly installed on the surface of the end of the vertical rod 44 away from the nozzle pipe 306, and a spring 48 is fixedly installed between the circular plate 47 and the moving plate 45.

[0033] In this embodiment: The spring 48 functions to limit the position of the moving plate 45 on the surface of the vertical rod 44.

[0034] Working principle: By setting the adjusting device 3, when the device needs to be used, first use the pulley 2 to move the device to a suitable location. Then, when it is necessary to adjust the spraying pitch angle of the nozzle 306 according to the actual situation, first start the motor 304. The start of the motor 304 drives the rotation of the rotating shaft 303. The rotation of the rotating shaft 303 drives the rotation of the rotating plate 305. The rotation of the rotating plate 305 drives the rotation of the nozzle 306. The rotation of the nozzle 306 thus changes its own pitch angle. When the pitch angle of the nozzle 306 is adjusted, when it is necessary to adjust the orientation of the nozzle 306, first start the electric telescopic rod 312. The start of the electric telescopic rod 312 drives the movement of the sliding plate 308 inside the chute 307. The movement of the sliding plate 308 inside the chute 307 drives the movement of the rack 309. The movement of the rack 309 meshes with the gear 310, thereby causing the gear 310 to rotate. The rotation of the gear 310 drives the rotation of the rotating column 301. The rotation of the rotating column 301 drives the rotation of the U-shaped bracket 302. The rotation of the U-shaped bracket 302 finally drives the rotation of the nozzle 306, thus completing the orientation of the nozzle 306. After the orientation of the nozzle 306 is adjusted, the water inlet pipe 313 can be connected to external water pumps and other devices, so that water can be conveyed into the inside of the nozzle 306 and then sprayed out from the inside of the nozzle 306 to complete the corresponding dust suppression operation. Through the cooperation of the above structures, the spraying angle of the nozzle 306 can be flexibly adjusted, with strong flexibility, and is suitable for open-air sites with a large and non-concentrated dust generation range. When it is necessary to dust-proof the nozzle of the nozzle 306, first slide the moving plate 45 so that the moving plate 45 moves on the surface of the vertical rod 44. The movement of the moving plate 45 on the surface of the vertical rod 44 will squeeze the spring 48, causing the spring 48 to be compressed under force. At the same time, the movement of the moving plate 45 on the surface of the vertical rod 44 also drives the movement of the positioning rod 46. When the positioning rod 46 moves to a suitable position, at this time, the dust-proof sleeve 41 is sleeved on the outer wall surface of the nozzle 306. When the positioning hole 43 on the positioning plate 42 on the outer wall surface of the dust-proof sleeve 41 and the positioning rod 46 are in the same vertical plane, then release the moving plate 45. Use the resilience of the spring 48 to reset the positioning rod 46. The reset of the positioning rod 46 causes it to insert into the inside of the positioning hole 43. The positioning rod 46 and the positioning hole 43 are inserted and connected, thereby limiting and fixing the dust-proof sleeve 41 on the outer wall surface of the nozzle 306 to dust-proof the nozzle of the nozzle 306, preventing the nozzle of the nozzle 306 from being exposed outside and being easily contaminated with dust and causing nozzle blockage, which will have an adverse impact on the next spraying and dust suppression operation.

[0035] As described above, it is only the preferred embodiment of the present utility model, and it is not a limitation to the present utility model in other forms. Any person skilled in the art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present utility model, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present utility model still belong to the protection scope of the technical solution of the present utility model. In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations.

Claims

1. An open-pit blasting dust reduction device, comprising a bottom plate (1), and four pulleys (2) are fixedly installed at the bottom of the bottom plate (1), characterized in that: The surface of the bottom plate (1) is provided with an adjusting device (3). The adjusting device (3) includes a rotating column (301). The rotating column (301) is rotatably connected to the surface of the bottom plate (1). The top surface of the rotating column (301) is fixedly installed with a U-shaped bracket (302). A rotating shaft (303) is rotatably connected between the inner walls of the two ends of the U-shaped bracket (302). A motor (304) is fixedly installed on one side surface of the U-shaped bracket (302). The output end of the motor (304) is fixedly connected to the rotating shaft (303).

2. The open-pit blasting dust reduction device according to claim 1, wherein: A rotating plate (305) is fixedly installed on the outer wall surface of the rotating shaft (303). A spray pipe (306) is fixedly installed on the top surface of the rotating plate (305). A water inlet pipe (313) is fixedly installed at one end port of the spray pipe (306). A nozzle is provided at one end of the spray pipe (306) away from the water inlet pipe (313).

3. The open-pit blasting dust reduction device according to claim 2, characterized in that: A chute (307) is formed on the surface of the bottom plate (1). A sliding plate (308) is slidably connected inside the chute (307). A rack (309) is fixedly installed on the surface of the sliding plate (308). A gear (310) is fixedly installed on the outer wall surface of the rotating column (301). The rack (309) and the gear (310) are meshed with each other.

4. The open-pit blasting dust reduction device according to claim 3, wherein: A support plate (311) is fixedly installed on the surface of the bottom plate (1). An electric telescopic rod (312) is fixedly installed on the surface of the support plate (311). The output end of the electric telescopic rod (312) is fixedly connected to the sliding plate (308).

5. The open-air blasting dust suppression device according to claim 4, characterized in that: A dust-proof device (4) is provided on the outer wall surface of the spray pipe (306). The dust-proof device (4) includes a dust-proof sleeve (41). The dust-proof sleeve (41) is sleeved on the outer wall surface of the spray pipe (306). A positioning plate (42) is fixedly installed on the outer wall surface of the dust-proof sleeve (41). A positioning hole (43) is formed on the surface of the positioning plate (42). A vertical rod (44) is fixedly installed on the outer wall surface of the spray pipe (306). A moving plate (45) is slidably connected to the surface of the vertical rod (44). A positioning rod (46) is fixedly installed on the surface of the moving plate (45).

6. The open-pit blasting dust reduction device according to claim 5, wherein: A circular plate (47) is fixedly installed on the surface of the vertical rod (44) away from the spray pipe (306). A spring (48) is fixedly installed between the circular plate (47) and the moving plate (45).

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