Dust suppression and falling device for underground coal mine tunneling roadway

Abstract

The utility model relates to the technical field of coal mines, in particular to a coal mine underground tunneling roadway dust suppression and dust fall device, and solves the problems that in the prior art, dust suppression and dust fall of a roadway are carried out through spraying of a long water pipe, overall spraying is directly carried out on the roadway, and due to the particularity of an underground coal mine, the dust suppression and dust fall of the roadway are influenced. A large amount of water has certain potential safety hazards, and targeted dust suppression and falling cannot be achieved. A dust suppression and falling device for an underground coal mine tunneling roadway comprises a frame body, the inner side of the frame body is rotationally connected with a screw rod, one side of the outer wall of the frame body is fixedly connected with a second motor through a bolt, and one end of the screw rod penetrates through the side wall of the frame body and is in transmission connection with an output shaft of the second motor. Through overall movement of the bearing pipe, the positions of the two rotating pipes can be finely adjusted in a short distance, movement of the whole frame body is not needed, and the two rotating pipes can rotate to spray water, so that the working face of roadway dust fall spraying and the dust fall uniformity are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of coal mine, especially to a coal mine underground tunneling roadway dust suppression and reduction device. BACKGROUND

[0002] The coal mine underground tunneling roadway is the core link in the coal mining process, which involves tunneling from the ground or existing roadway to the underground coal seam or rock stratum to form an underground passage for personnel passage, coal transportation, ventilation and drainage, etc. This process not only requires high precision and high efficiency, but also must ensure safety and stability to adapt to complex geological conditions and strict production requirements. The coal mine underground tunneling roadway usually follows a specific tunneling sequence and layout principle, such as entering the underground from the main shaft, auxiliary shaft, etc., gradually tunneling and mining horizontal stage transportation roadway, key roadway of mining area transportation cross, etc. In the tunneling process, appropriate tunneling methods such as drilling and blasting or mechanical tunneling method need to be selected according to the geological conditions, and corresponding supporting technology needs to be used to ensure the stability of the roadway. The supporting methods are various, including shed support, anchor rod support, and shotcrete support, etc., aiming to prevent surrounding rock collapse or deformation and ensure tunneling safety.

[0003] At the same time, the coal mine underground tunneling roadway also faces many challenges, such as water inrush, gas emission, roof and floor stability, etc. geological problems, and environmental problems such as poor ventilation, dust pollution, etc. These challenges require strict adherence to safety procedures and operating standards during tunneling, strengthening equipment maintenance and personnel training, improving safety awareness and operation skills. In addition, it is also necessary to reasonably arrange the ventilation pipe network, drainage system and other facilities to ensure the normal production of the mine, and the dust suppression and reduction measures of the coal mine underground tunneling roadway are an important part of the coal mine safety production, aiming to reduce dust generation, inhibit dust diffusion, protect the health of operating personnel, and prevent dust explosion and other safety accidents.

[0004] When tunneling in the coal mine, a certain amount of dust will be generated inside the roadway. In order to ensure the health of operating personnel, it is particularly important to suppress dust inside the roadway. However, we consider that in the traditional way of suppressing dust in the roadway, water is sprayed through a long water pipe. This way directly sprays the whole roadway. Due to the particularity of the coal mine underground, a large amount of water will have certain safety hazards, and cannot have targeted dust suppression and reduction, which is extremely inconvenient. Therefore, a coal mine underground tunneling roadway dust suppression and reduction device is urgently needed to solve the above problems. UTILITY MODEL CONTENT

[0005] The utility model discloses a coal mine underground tunneling roadway dust suppression and dust reduction device, solved the roadway dust suppression and dust reduction in prior art, all through long water pipe and spray, this mode directly carries out integral spraying to the roadway, owing to the particularity of coal mine underground, a large amount of water will have certain security risks, cannot have the problem of pertinence dust suppression and dust reduction.

[0006] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] A coal mine underground tunneling roadway dust suppression and dust reduction device, including the frame, the inside rotation of frame is connected with screw rod, and the outer wall of frame one side is through bolt fixed connection with second motor, and the one end of screw rod is through the lateral wall of frame with second motor output shaft transmission connection, and the one end of screw rod is through the thread screwing connection with nut seat, and the top of nut seat is fixedly connected with the bearing pipe, and the top of bearing pipe is equipped with the roof, and the both sides of roof are fixedly connected with the lateral wall of bearing pipe through support rod, and the top one side of roof is through bolt fixed connection with first motor, and the bottom of roof both sides are rotatably connected with the rotating rod, and the bottom of two rotating rods is fixedly connected with the rotating pipe, and the bottom of two rotating pipes is communicated with the top of bearing pipe through the swivel joint, and the both sides of two rotating pipes are communicated with several spray heads, and the bottom of roof is rotatably connected with the connecting rod, and the top of connecting rod is through the roof with first motor output shaft transmission connection, and the one end of two rotating rods is engagedly connected with connecting rod, and the outer wall of frame one side is through bolt fixed connection with pump body, and the water outlet of pump body is communicated with the one side of bearing pipe.

[0008] Preferably, the one end of two rotating rods and the one end of connecting rod are sleeved with gears, and the gears on two rotating rods are engagedly connected with the gear on connecting rod.

[0009] Preferably, the top of two rotating rods is rotatably connected with the bottom of roof through the pivot, and the top of connecting rod is rotatably connected with the bottom of roof through the pivot.

[0010] Preferably, the one end of screw rod is rotatably connected with the inner wall of frame through the pivot, and the other end of screw rod is through bearing sleeve and penetrates the lateral wall of frame.

[0011] Preferably, the both sides of nut seat are fixedly connected with sliding block, and two sliding blocks are slidably connected with the lateral wall of frame through the sliding slot.

[0012] Preferably, the outlet of pump body is communicated with the flexible hose, and the one end of flexible hose is communicated with the one side of bearing pipe, and the outside of first motor and the outside of second motor are provided with the protection frame, and the both sides of two protection frames are fixedly connected with the top of roof and the outer wall of frame respectively.

[0013] The utility model has the following beneficial effects:

[0014] When dust suppression and dust reduction operation is needed in the coal mine underground tunneling roadway, the frame body is placed in the position where dust is generated in the roadway, dust reduction is carried out from the source of the generated dust, first, the pump body is started, the pump body draws the water source into and conveys into the bearing pipe through the water outlet. At this time, the second motor starts to work, and drives the screw rod to rotate in the frame body. Since the nut seat is connected with the screw rod through thread engagement, the nut seat will move in the horizontal direction with the rotation of the screw rod, thereby driving the bearing pipe, the top plate and the whole spraying system to fine-tune the horizontal position, at the same time, the first motor is started, the output shaft transmits power through the connecting rod, and the two rotating rods rotate at the bottom of the top plate. The bottom end of the rotating rod is fixedly connected with the rotating pipe, so that the rotating pipe can also rotate with the rotating joint. A plurality of nozzles are communicated on the rotating pipe, which uniformly sprays the water in the bearing pipe in the form of mist to each corner of the required position in the rotating process. The mode proposed in the utility model can fine-tune the position of the two rotating pipes in a short distance through the overall movement of the bearing pipe, without moving the whole frame body, and can make the two rotating pipes rotate to spray water, so as to improve the operation surface and the uniformity of dust reduction spraying in the roadway. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0016] Figure 1 It is the overall front view structural schematic diagram of the utility model;

[0017] Figure 2 It is the overall front view structural schematic diagram of the utility model;

[0018] Figure 3 It is the overall front view structural schematic diagram of the utility model;

[0019] Figure 4 It is the overall front view structural schematic diagram of the utility model;

[0020] Figure 5 It is the overall front view structural schematic diagram of the utility model;

[0021] In the figure: 1, frame; 2, bearing tube; 3, pump body; 4, protective frame; 5, top plate; 6, support rod; 7, rotating tube; 8, rotating rod; 9, gear; 10, connecting rod; 11, spray head; 12, rotary joint; 13, flexible hose; 14, screw rod; 15, nut seat; 16, first motor; 17, second motor; 18, sliding block; 19, sliding groove. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail with the help of the drawings and examples. It should be understood that the specific examples described here are only used to explain the utility model, and are not used to limit the utility model.

[0023] Reference Figures 1-5 A coal mine underground tunneling roadway dust suppression device, including frame 1, the inner side of frame 1 is rotatably connected with screw rod 14, and the outer wall of frame 1 is fixedly connected with second motor 17 on one side through bolts, one end of screw rod 14 is penetratingly connected with the output shaft of second motor 17, and one end of screw rod 14 is rotatably connected with nut seat 15 through threads, and nut seat 15 and screw rod 14 are rotatably connected through threads, which are the key components of horizontal fine adjustment mechanism. When screw rod 14 rotates, nut seat 15 moves in horizontal direction, drives bearing tube 2 and the whole spraying system to realize position fine adjustment, the top of nut seat 15 is fixedly connected with bearing tube 2, the top of bearing tube 2 is fixedly connected with nut seat 15, the bottom of bearing tube 2 is communicated with rotating tube 7 through rotary joint 12, the water source drawn by pump body 3 is delivered to rotating tube 7 through bearing tube 2, and then sprayed out by spray head 11, so as to realize dust suppression effect, the top of bearing tube 2 is provided with top plate 5, the two sides of top plate 5 are fixedly connected with the side walls of bearing tube 2 through support rods 6, the top of top plate 5 is fixedly connected with first motor 16 on one side through bolts, the two sides of the bottom of top plate 5 are rotatably connected with rotating rods 8, and the bottoms of the two rotating rods 8 are fixedly connected with rotating tubes 7, the bottoms of the two rotating tubes 7 are communicated with the top of bearing tube 2 through rotary joints 12, and the two rotating tubes 7 are communicated with a plurality of spray heads 11, spray head 11 is the final execution component of the spraying system, which is designed ingeniously, can uniformly spray the water source in bearing tube 2 in mist form, forms fine water mist layer, effectively adsorbs and settles dust in the roadway, the bottom of top plate 5 is rotatably connected with connecting rod 10, the top of connecting rod 10 is penetratingly connected with the output shaft of first motor 16, one end of the two rotating rods 8 is engagedly connected with connecting rod 10, the outer wall of frame 1 is fixedly connected with pump body 3 on one side through bolts, and the water outlet of pump body 3 is communicated with one side of bearing tube 2.

[0024] Further, the gear 9 is sleeved on one end of the two rotating rods 8 and one end of the connecting rod 10, and the gears 9 on the two rotating rods 8 are in meshing connection with the gear 9 on the connecting rod 10, when the first motor 16 is started and the power is transmitted through the connecting rod 10, the gear 9 on the connecting rod 10 will drive the gears 9 on the two rotating rods 8 to rotate, thereby realizing the synchronous and stable rotation of the rotating rod 8 and the rotating pipe 7, which ensures that the nozzle 11 can uniformly and continuously spray water mist, and improves the effect and efficiency of dust suppression.

[0025] Further, the top end of the two rotating rods 8 is rotatably connected between the top plate 5 and the bottom of the top plate 5 through the shaft, and the top end of the connecting rod 10 is rotatably connected between the top plate 5 and the bottom of the top plate 5 through the shaft, the rotating rod 8 and the connecting rod 10 can be flexibly rotated at the bottom of the top plate 5, which not only enhances the stability and durability of the spraying system, but also makes the whole device more adaptable and flexible in the complex environment of the coal mine.

[0026] Further, one end of the screw rod 14 is rotatably connected between the inner wall of the frame 1 through the shaft, and the other end of the screw rod 14 penetrates the side wall of the frame 1 through the bearing sleeve, the screw rod 14 can stably and smoothly rotate in the frame 1, and the use of the bearing sleeve also reduces the friction and wear between the screw rod 14 and the side wall of the frame 1.

[0027] Further, the two sides of the nut seat 15 are fixedly connected with the sliding blocks 18, and the two sliding blocks 18 are slidably connected between the side wall of the frame 1 through the sliding groove 19, the nut seat 15 can stably and smoothly move along the sliding groove 19 under the drive of the screw rod 14, thereby driving the carrier pipe 2 and the fine adjustment of the horizontal position of the spraying system.

[0028] Further, the pump body 3 is communicated with the telescopic hose 13 at the outlet, one end of the telescopic hose 13 is communicated with one side of the carrier pipe 2, the outer side of the first motor 16 and the outer side of the second motor 17 are provided with the protective frame 4, and one side of the two protective frames 4 is fixedly connected with the top of the top plate 5 and the outer wall of the frame 1 respectively, the telescopic hose 13 can adapt to the fine adjustment of the position of the carrier pipe 2, and keep the stable communication between the pump body 3 and the carrier pipe 2; and the protective frame 4 can effectively protect the first motor 16 and the second motor 17 from the harsh environment of the coal mine, and improve the service life and stability of the motor.

[0029] In summary:

[0030] In the process of excavating roadway in coal mine, when the dust suppression and reduction device is used, the frame body 1 is first placed stably at the key position of the roadway where dust is generated to ensure efficient dust reduction from the source of dust. Next, the pump body 3 is started to draw water from the external water source and stably deliver it into the carrying pipe 2 through the water outlet and the flexible connection of the flexible hose 13. During this process, the flexible hose 13 shows good adaptability and can maintain stable connectivity with the fine adjustment of the position of the carrying pipe 2. Then, the second motor 17 drives the screw rod 14 to rotate. Since the screw nut seat 15 is connected with the screw rod 14 by screwing, and the screw nut seat 15 is equipped with sliding blocks 18 on both sides, which move smoothly along the sliding groove 19 of the frame body 1, the screw nut seat 15 will be accurately fine-tuned in the horizontal direction with the rotation of the screw rod 14. This action further drives the carrying pipe 2, the top plate 5 and the entire spraying system to realize fine adjustment of the horizontal position, so as to flexibly adjust the spraying range according to the actual situation of dust distribution in the roadway. At the same time, the first motor 16 is also started, and the power is transmitted through the connecting rod 10. The top end of the connecting rod 10 is connected with the output shaft of the first motor 16 through the top plate 5, and the bottom end is connected with the gears 9 on the two rotating rods 8 through the sleeve connection. This ingenious design ensures that when the first motor 16 rotates, the connecting rod 10 can drive the two rotating rods 8 to rotate synchronously and stably at the bottom of the top plate 5. The bottom end of the rotating rod 8 is fixedly connected with the rotating pipe 7, which is in communication with the carrying pipe 2 through the rotary joint 12, so it can rotate freely with the rotating rod 8. The rotating pipe 7 is evenly distributed with multiple nozzles 11, which can uniformly spray water in the carrying pipe 2 in the form of fine mist to every corner of the inside of the roadway during rotation, effectively suppressing the flying of dust. The top end of the two rotating rods 8 and the top end of the connecting rod 10 are rotationally connected with the bottom of the top plate 5 through the shaft, which not only enhances the stability and durability of the spraying system, but also makes the entire device have high adaptability and flexibility in the complex and variable environment of coal mine. One end of the screw rod 14 is rotationally connected with the inner wall of the frame body 1 through the shaft, and the other end is connected with the bearing sleeve through the side wall of the frame body 1, which ensures the stability and smoothness of the screw rod 14 during rotation, reduces friction and wear, and prolongs the service life of the device. In addition, the outer sides of the first motor 16 and the second motor 17 are provided with protective frames 4, which are firm and durable, can effectively resist the erosion of the harsh environment of coal mine such as dust and moisture, thereby protecting the motors from damage and improving their service life and stability.

[0031] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection required by the present application is defined by the appended claims and their equivalents.

Claims

1. A dust suppression and reduction device for underground coal mine tunneling, comprising a frame (1), characterized in that, The inner side of the frame (1) is rotatably connected with a screw rod (14), and the outer wall of the frame (1) is fixedly connected with a second motor (17) through bolts. One end of the screw rod (14) penetrates the side wall of the frame (1) and is in transmission connection with the output shaft of the second motor (17). A nut seat (15) is threadedly connected to one end of the screw rod (14). The top of the nut seat (15) is fixedly connected with a bearing pipe (2). The top of the bearing pipe (2) is provided with a top plate (5). The top plate (5) is fixedly connected with the side wall of the bearing pipe (2) through support rods (6) on both sides. The top plate (5) is fixedly connected with a first motor (16) on one side through bolts. The bottom of the top plate (5) is rotatably connected with rotating rods (8) on both sides. The bottom ends of the two rotating rods (8) are fixedly connected with rotating pipes (7). The bottom ends of the two rotating pipes (7) are in communication with the top of the bearing pipe (2) through rotary joints (12). A plurality of nozzles (11) are in communication with the two rotating pipes (7). The bottom of the top plate (5) is rotatably connected with a connecting rod (10). The top end of the connecting rod (10) penetrates the top plate (5) and is in transmission connection with the output shaft of the first motor (16). The ends of the two rotating rods (8) are in meshing connection with the connecting rod (10). The outer wall of the frame (1) is fixedly connected with a pump body (3) through bolts. The water outlet of the pump body (3) is in communication with one side of the bearing pipe (2).

2. The coal mine underground tunneling roadway dust suppression and reduction device according to claim 1, characterized in that, Gear wheels (9) are sleeved on the ends of the two rotating rods (8) and the end of the connecting rod (10). The gear wheels (9) on the two rotating rods (8) are in meshing connection with the gear wheel (9) on the connecting rod (10).

3. The dust suppression and reduction device for underground tunneling in a coal mine of claim 1, wherein, The top ends of the two rotating rods (8) are rotatably connected with the bottom of the top plate (5) through shafts. The top end of the connecting rod (10) is rotatably connected with the bottom of the top plate (5) through a shaft.

4. The dust suppression and reduction device for underground tunneling in a coal mine of claim 1, wherein, One end of the screw rod (14) is rotatably connected with the inner wall of the frame (1) through a shaft. The other end of the screw rod (14) penetrates the side wall of the frame (1) through a bearing sleeve.

5. The coal mine underground tunneling roadway dust suppression and reduction device according to claim 1, characterized in that, The two sides of the nut seat (15) are fixedly connected with sliding blocks (18). The two sliding blocks (18) are slidingly connected with the side wall of the frame (1) through sliding grooves (19).

6. The coal mine underground tunneling roadway dust suppression and reduction device according to claim 1, characterized in that, A flexible hose (13) is communicated with the outlet of the pump body (3). One end of the flexible hose (13) is in communication with one side of the bearing pipe (2). The outer sides of the first motor (16) and the second motor (17) are provided with protective frames (4). The two protective frames (4) are fixedly connected with the top of the top plate (5) and the outer wall of the frame (1) on one side, respectively.

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