Air dust falling device for mine blasting

Abstract

The application belongs to the technical field of air dust fall, and particularly relates to an air dust fall device for mine blasting. The following scheme is provided, and specifically comprises a caterpillar type moving trolley. A transition water tank is installed on one side of the top of the caterpillar type moving trolley, a water supplement pipe is installed on one side of the top of the transition water tank, a supporting frame is installed on the other side of the top of the caterpillar type moving trolley, a remote control box is installed in the supporting frame, and a rotary connecting piece is installed on the other side of the top of the transition water tank. In the application, a spiral diffusion water column is formed in the gap range between the dust fall water curtain edge and the ground through the edge locking spraying mechanism, so that the dust is prevented from diffusing with the blasting shock wave. Meanwhile, the spraying angle and height of the water curtain spraying mechanism and the edge locking spraying mechanism are adjusted, and then a strip-shaped or fan-shaped distributed dust fall water curtain is formed according to the blasting range and type, so that the dust fall efficiency for the mine blasting dust is effectively improved, and the blasting dust is prevented from diffusing with the blasting shock wave.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air dust fall, in particular to an air dust fall device for mine blasting. BACKGROUND

[0002] On the grand stage of open-pit mining, blasting operation undoubtedly occupies a core position, and is the key hub of the whole mining process. Its core mission is to accurately crush and moderately loosen the whole mine rock, and then carefully shape the blasting pile of a specific shape, to cleverly pave the way for the subsequent mining and loading operation, and create very favorable working conditions. Without exaggeration, the quality and effect of blasting work are like an invisible but powerful hand, tightly holding the throat of the subsequent mining and loading operation, and have a direct and far-reaching impact on the production efficiency and cost.

[0003] In the process of open-pit mining, although the blasting method is efficient, it is often accompanied by problems such as noise, vibration and dust, which has a certain impact on the surrounding environment and operation safety. Among them, the blasting dust is mainly sprayed by a special water spraying vehicle into the site to spray water to prevent dust from spreading, but the existing water spraying vehicle nozzle cannot effectively control the dispersion and diffusion of the water mist, and cannot dynamically adjust according to the change of the construction environment, resulting in the need to increase the amount of water spraying and the number of water spraying vehicles to improve the coverage during dust fall, causing waste of water resources.

[0004] Therefore, the present application provides an air dust fall device for mine blasting to solve the above technical problems in the prior art. SUMMARY

[0005] Based on the technical problems in the background art, the present application provides an air dust fall device for mine blasting.

[0006] The air dust fall device for mine blasting provided by the present application comprises a crawler-type mobile trolley, a transition water tank is installed on one side of the top of the crawler-type mobile trolley, a water replenishing pipe is installed on one side of the top of the transition water tank, a supporting frame is installed on the other side of the top of the crawler-type mobile trolley, a remote control box is installed in the supporting frame, a rotary connecting piece is installed on the other side of the top of the transition water tank, a T-shaped structure of a flow dividing pipe is fixedly installed on the top of the rotary connecting piece, liquid distribution pipes are installed at both ends of the flow dividing pipe, a plurality of adjusting mechanisms are installed in sequence on the top of the liquid distribution pipe, a locking edge spraying mechanism is installed at the outlet end of the adjusting mechanism at the end, a water curtain spraying mechanism is installed at the outlet end of the adjusting mechanism in the middle, and a booster pump connected with the rotary connecting piece is installed in the transition water tank.

[0007] Preferably in the present application, the rotating joint comprises a supporting pipe connected with the outlet of the booster pump, and a rotating pipe base connected with the shunt pipe, and a rotating seal is arranged between the supporting pipe and the rotating pipe base.

[0008] Preferably in the present application, the top of the transition water tank is further provided with a main control mechanism, which comprises a main control motor and a main control reducer in transmission connection, and the rotating pipe base is fixedly installed on the output end of the main control reducer.

[0009] Preferably in the present application, the adjusting mechanism comprises a main pipe body installed on the top of the liquid distribution pipe, an electromagnetic valve is installed on the inner top end of the main pipe body, U-shaped pipe racks are arranged on the two sides of the top of the main pipe body, a T-shaped water outlet pipe is rotatably installed between the two pipe racks, and a water curtain spraying mechanism and a edge locking spraying mechanism are installed on the outlet end of the water outlet pipe.

[0010] Preferably in the present application, the adjusting mechanism further comprises a vertical arc-shaped rack fixedly installed at the middle position of the water outlet pipe, and a rack body fixedly installed on the side of the main pipe body, a vertical adjusting gear is rotatably installed on the top of the rack body, a vertical adjusting motor in transmission connection with the vertical adjusting gear is installed on the side of the rack body, and the vertical adjusting gear is in meshing transmission with the vertical arc-shaped rack.

[0011] Preferably in the present application, the adjusting mechanism further comprises a horizontal adjusting motor fixedly installed on the rack body, and a horizontal arc-shaped rack fixedly installed on the liquid distribution pipe, and a horizontal adjusting gear in meshing transmission with the horizontal arc-shaped rack is installed on the output shaft of the horizontal adjusting motor.

[0012] Preferably in the present application, the water curtain spraying mechanism comprises a transition pipe body and a diffusion spray head in connection with each other, a converging cavity in a horn shape is arranged at the connection position of the transition pipe body and the diffusion spray head, and a duck-billed strip-shaped spray hole is arranged at the outlet end of the diffusion spray head.

[0013] Preferably in the present application, a rectangular frame is sleeved on the outside of the diffusion spray head, swing plates are hinged on the top and the bottom of the rectangular frame, control electric push rods are hinged between the swing plates and the rectangular frame, and a plurality of dispersion grooves are arranged on the surface of the swing plates.

[0014] Preferably in the present application, the edge locking spraying mechanism comprises a spraying pipe body, a compression flow channel with gradually reduced inner diameter is arranged in the spraying pipe body, and helically distributed flow guide paddles are arranged on the inner wall of the compression flow channel.

[0015] Preferably in the present application, a ring-shaped spray head is sleeved on the outer end of the spraying pipe body, and a plurality of helical turbulence paddles are arranged on the inner wall of the ring-shaped spray head.

[0016] Compared with the prior art, the present invention provides an air dust suppression device for mine blasting, which has the following beneficial effects:

[0017] In this invention, a rotatable diversion pipe is installed above the transition water tank, and multiple adjustment mechanisms are installed at both ends of the diversion pipe. These adjustment mechanisms enable the installation of multiple water curtain spray mechanisms arranged in the center of the device, and edge-locking spray mechanisms at both ends. The spray angle and height of the water curtain spray mechanism and the edge-locking spray mechanism are independently adjustable. Through improved design of the spray nozzles of the water curtain spray mechanism and the edge-locking spray mechanism, the water curtain spray mechanism can spray a water mist that diffuses in a curtain-like pattern, and the edge-locking spray mechanism can spray a water column that diffuses in a spiral pattern. This requires further... When dealing with blasting dust, a water curtain spraying mechanism is used to form a dust-suppressing water curtain in the middle, enhancing the coverage and uniformity of the water mist above the blast. A locking-edge spraying mechanism forms a spiral-shaped water column in the gap between the edge of the dust-suppressing water curtain and the ground, preventing dust from spreading with the blast shock wave. At the same time, by adjusting the spray angle and height of the water curtain spraying mechanism and the locking-edge spraying mechanism, strip-shaped or fan-shaped dust-suppressing water curtains can be formed according to the blasting range and type, effectively improving the dust suppression efficiency of mine blasting dust and preventing blasting dust from spreading with the blast shock wave. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an air dust suppression device for mine blasting proposed in this invention;

[0019] Figure 2 This is a schematic diagram of the main control mechanism distribution structure of an air dust suppression device for mine blasting proposed in this invention;

[0020] Figure 3 This is a schematic diagram of the rotating connecting component structure of an air dust suppression device for mine blasting proposed in this invention;

[0021] Figure 4 This is a schematic diagram of the water curtain jet mechanism distribution structure of an air dust suppression device for mine blasting proposed in this invention;

[0022] Figure 5 This is a schematic diagram of the adjustment mechanism of an air dust suppression device for mine blasting proposed in this invention;

[0023] Figure 6 This is a rear view schematic diagram of the adjustment mechanism of an air dust suppression device for mine blasting proposed in this invention;

[0024] Figure 7 This is a schematic diagram of the water curtain jet mechanism of an air dust suppression device for mine blasting proposed in this invention;

[0025] Figure 8This is a cross-sectional schematic diagram of the water curtain jet mechanism of an air dust suppression device for mine blasting proposed in this invention;

[0026] Figure 9 This is a schematic diagram of the swing plate structure of an air dust suppression device for mine blasting proposed in this invention;

[0027] Figure 10 This is a schematic diagram of the locking spray mechanism of an air dust suppression device for mine blasting proposed in this invention.

[0028] In the diagram: 1 Tracked mobile trolley, 2 Transition water tank, 3 Water supply pipe, 4 Adjustment mechanism, 41 Main pipe body, 42 Pipe rack, 43 Water outlet pipe, 44 Vertical arc rack, 45 Frame body, 46 Vertical adjustment gear, 47 Vertical adjustment motor, 48 Horizontal adjustment motor, 49 Horizontal adjustment gear, 410 Horizontal arc rack, 5 Main control mechanism, 6 Rotary connector, 61 Support pipe, 62 Rotary seal, 63 Rotary pipe seat, 7 Diverter pipe, 8 Water curtain spray mechanism, 81 Transition pipe body, 82 Contraction chamber, 83 Diffusion nozzle, 84 Strip spray hole, 85 Rectangular frame, 86 Swing plate, 87 Control electric push rod, 88 Dispersion tank, 9 Liquid distribution pipe, 10 Edge locking spray mechanism, 101 Spray pipe body, 102 Compression channel, 103 Guide paddle plate, 104 Annular nozzle, 11 Support frame, 12 Remote control box, 13 Booster pump. Detailed Implementation

[0029] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0030] Reference Figures 1-10 A dust suppression device for mining blasting includes a tracked mobile trolley 1. A transition water tank 2 is installed on one side of the top of the tracked mobile trolley 1, and a water supply pipe 3 is installed on one side of the top of the transition water tank 2. A support frame 11 is installed on the other side of the top of the tracked mobile trolley 1, and a remote control box 12 is installed inside the support frame 11. A rotating connector 6 is installed on the other side of the top of the transition water tank 2, and a T-shaped diversion pipe 7 is fixedly installed on the top of the rotating connector 6. Liquid distribution pipes 9 are installed at both ends of the diversion pipe 7. Multiple adjustment mechanisms 4 are installed sequentially on the top of the liquid distribution pipes 9. A locking spray mechanism 10 is installed at the outlet end of the adjustment mechanism 4 located at the end, and a water curtain spray mechanism 8 is installed at the outlet end of the adjustment mechanism 4 located in the middle. A booster pump 13 connected to the rotating connector 6 is installed inside the transition water tank 2.

[0031] In this invention, a rotatable diversion pipe 7 is provided above the transition water tank 2, and multiple adjustment mechanisms 4 are provided at both ends of the diversion pipe 7. Multiple water curtain spraying mechanisms 8 arranged in the middle and edge-locking spraying mechanisms 10 located at both ends are arranged on the device via the adjustment mechanisms 4. The spraying angle and height of the water curtain spraying mechanism 8 and the edge-locking spraying mechanism 10 can be adjusted independently. Through improved design of the spray nozzles of the water curtain spraying mechanism 8 and the edge-locking spraying mechanism 10, the water curtain spraying mechanism 8 can spray water mist that diffuses in a curtain-like pattern, and the edge-locking spraying mechanism 10 can spray water mist that diffuses in a spiral pattern. When dust suppression is required for blasting, a water column is used to form a dust-suppressing water curtain in the middle using a water curtain spraying mechanism 8. This enhances the coverage and uniformity of the water mist above the blast. The edge-locking spraying mechanism 10 forms a spiral-shaped water column in the gap between the edge of the dust-suppressing water curtain and the ground, preventing dust from spreading with the blasting shock wave. At the same time, by adjusting the spray angle and height of the water curtain spraying mechanism 8 and the edge-locking spraying mechanism 10, a strip-shaped or fan-shaped dust-suppressing water curtain can be formed according to the blasting range and type, effectively improving the dust suppression efficiency of mine blasting dust and preventing blasting dust from spreading with the blasting shock wave.

[0032] As a further embodiment of the present invention, the rotary connector 6 includes a support pipe 61 connected to the outlet of the booster pump 13 and a rotary pipe seat 63 connected to the diversion pipe 7. A rotary seal 62 is provided between the support pipe 61 and the rotary pipe seat 63. In the present invention, the air dust suppression device is moved by the tracked mobile trolley 1 to cope with the complex environment of the mine. At the same time, after the air dust suppression device is fixed, the direction of the liquid distribution pipe 9 is adjusted by the rotary connector 6, thereby controlling the dust suppression direction of the water curtain spray mechanism 8 and the edge locking spray mechanism 10. The operation is simple and convenient.

[0033] As a further embodiment of the present invention, a main control mechanism 5 is also installed on the top of the transition water tank 2. The main control mechanism 5 includes a main control motor and a main control reducer connected by transmission. The rotating tube seat 63 is fixedly installed on the output end of the main control reducer. In the present invention, the spraying direction of the water curtain spraying mechanism 8 and the edge-locking spraying mechanism 10 can be adjusted in the horizontal direction by the cooperation of the main control mechanism 5 and the rotating connecting piece 6.

[0034] As a further embodiment of the present invention, the regulating mechanism 4 includes a main body 41 installed on the top of the liquid distribution pipe 9, and an electromagnetic valve is installed at the top of the main body 41. U-shaped pipe supports 42 are arranged on both sides of the top of the main body 41, and a T-shaped water outlet pipe 43 is rotatably installed between the two pipe supports 42. The water curtain spraying mechanism 8 and the edge-locking spraying mechanism 10 are installed at the outlet end of the water outlet pipe 43. In this invention, after the high-pressure water flow is distributed by the liquid distribution pipe 9, it enters the corresponding main body 41, and then passes through the pipe supports 42 and the water outlet pipe 43 to enter the water curtain spraying mechanism 8 and the edge-locking spraying mechanism 10. Simultaneously, the electromagnetic valve installed inside the main body 41 controls the water pressure and flow rate, thereby controlling the water curtain spraying mechanism 8 and the edge-locking spraying mechanism 10 to spray water mist of different ranges according to the blasting range, ensuring coverage of every area of ​​the blast and preventing dust diffusion.

[0035] As a further embodiment of the present invention, the adjustment mechanism 4 also includes a vertical arc-shaped rack 44 fixedly installed in the middle of the water outlet pipe 43, and a frame 45 fixedly installed on the side of the main pipe body 41. A vertical adjustment gear 46 is rotatably installed on the top of the frame 45, and a vertical adjustment motor 47 connected to the vertical adjustment gear 46 is installed on the side of the frame 45. The vertical adjustment gear 46 meshes with the vertical arc-shaped rack 44. In the present invention, through the transmission cooperation of the vertical adjustment motor 47, the vertical adjustment gear 46 and the vertical arc-shaped rack 44, the water outlet pipe 43 can be driven to rotate around the axis, thereby controlling the spray elevation angle of the water curtain spray mechanism 8 and the edge-locking spray mechanism 10, and adjusting the dust suppression height of the water curtain spray mechanism 8 and the edge-locking spray mechanism 10.

[0036] As a further embodiment of the present invention, the adjustment mechanism 4 also includes a horizontal adjustment motor 48 fixedly installed on the frame 45 and a horizontal arc-shaped rack 410 fixedly installed on the liquid distribution pipe 9. A horizontal adjustment gear 49 that meshes with the horizontal arc-shaped rack 410 is installed on the output shaft of the horizontal adjustment motor 48. In the present invention, when the water curtain spray mechanism 8 and the edge-locking spray mechanism 10 are performing dust suppression operations, the transmission cooperation of the horizontal adjustment motor 48, the horizontal adjustment gear 49 and the horizontal arc-shaped rack 410 can drive the main body 41 to rotate horizontally on the liquid distribution pipe 9, thereby controlling the horizontal spray angle of the water curtain spray mechanism 8 and the edge-locking spray mechanism 10 to form a strip-shaped or fan-shaped dust suppression space, effectively capturing dust particles within the blasting range.

[0037] As a further embodiment of the present invention, the water curtain spraying mechanism 8 includes a transition tube 81 and a diffusion nozzle 83 connected to each other. A converging cavity 82 with a trumpet-shaped structure is provided at the connection between the transition tube 81 and the diffusion nozzle 83. A duckbill-shaped strip nozzle 84 is provided at the outlet end of the diffusion nozzle 83. In the present invention, the high-pressure water flow increases its velocity through the converging cavity 82 with a trumpet-shaped structure and is guided and diffused through the strip nozzle 84, so that the high-pressure water flow diffuses outward in a strip-shaped water curtain. At the same time, the spraying elevation angles of multiple water curtain spraying mechanisms 8 are distributed in a high-middle and low-outer direction, thereby forming a multi-layered water curtain above the blasting range, consuming the shock wave generated by the blast layer by layer, and enhancing the dust collection effect.

[0038] As a further embodiment of the present invention, a rectangular frame 85 is fitted around the outer side of the diffusion nozzle 83, and a swing plate 86 is hinged to the top and bottom of the rectangular frame 85. A control electric push rod 87 is hinged between the swing plate 86 and the rectangular frame 85. The surface of the swing plate 86 is provided with multiple dispersion grooves 88. In the present invention, by setting the swing plate 86, a guide plate that can move up and down is formed at the outlet of the diffusion nozzle 83. Under the action of the control electric push rod 87, the two swing plates 86 form an outward compression, outward diffusion or horizontal guiding effect, changing the spray direction and range of the water mist. The dispersion grooves 88 on the surface of the swing plate 86 increase the density of the mist droplets to adapt to the dust suppression requirements under different blasting conditions, consume the energy of the blasting shock wave, and improve the efficiency of the overall dust suppression operation.

[0039] As a further embodiment of the present invention, the edge-locking spray mechanism 10 includes a spray pipe body 101, and the inside of the spray pipe body 101 is provided with a compression channel 102 with a gradually decreasing inner diameter. The inner wall of the compression channel 102 is provided with spirally distributed guide blades 103. In the present invention, high-pressure water enters the spray pipe body 101, increases the flow velocity through the compression channel 102, and guides the water column in a spiral manner, thereby increasing the spray distance and impact force of the water column, effectively blocking the explosive shock wave that surges outward from the ground, and enhancing the dust suppression effect.

[0040] As a further embodiment of the present invention, an annular nozzle 104 is fitted onto the outer end of the spray pipe 101, and a plurality of spiral turbulence-inducing blades are provided on the inner wall of the annular nozzle 104. In the present invention, when the water jet is increased, the turbulence-inducing blades distributed inside the annular nozzle 104 disrupt the outer layer of water jet, peel off the outer layer of water jet and form droplets, thereby enhancing the dust collection effect in the blast shock wave.

[0041] In use, the spray angle and height of the water curtain spraying mechanism 8 and the edge-locking spraying mechanism 10 can be adjusted independently. Through improved design of the spray nozzles of the water curtain spraying mechanism 8 and the edge-locking spraying mechanism 10, the water curtain spraying mechanism 8 can spray water mist that spreads in a curtain-like pattern, and the edge-locking spraying mechanism 10 can spray water columns that spread in a spiral pattern. When dust suppression is required for blasting dust, the water curtain spraying mechanism 8 forms a dust suppression water curtain in the middle, enhancing the coverage and uniformity of the water mist above the blast. The edge-locking spraying mechanism 10 forms a spiral-spreading water column in the gap between the edge of the dust suppression water curtain and the ground, preventing dust from spreading with the blasting shock wave. At the same time, by adjusting the spray angle and height of the water curtain spraying mechanism 8 and the edge-locking spraying mechanism 10, strip-shaped or fan-shaped dust suppression water curtains can be formed according to the blasting range and type, effectively improving the dust suppression efficiency of mine blasting dust and preventing blasting dust from spreading with the blasting shock wave.

[0042] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A dust suppression device for mining blasting, comprising a tracked mobile trolley (1), wherein a transition water tank (2) is installed on one side of the top of the tracked mobile trolley (1), and a water supply pipe (3) is installed on one side of the top of the transition water tank (2), and a support frame (11) is installed on the other side of the top of the tracked mobile trolley (1), and a remote control box (12) is installed inside the support frame (11), characterized in that, A rotating connector (6) is installed on the other side of the top of the transition water tank (2), and a T-shaped diversion pipe (7) is fixedly installed on the top of the rotating connector (6). Liquid distribution pipes (9) are installed at both ends of the diversion pipe (7). Multiple adjustment mechanisms (4) are installed in sequence on the top of the liquid distribution pipe (9). A locking spray mechanism (10) is installed at the outlet end of the adjustment mechanism (4) located at the end, and a water curtain spray mechanism (8) is installed at the outlet end of the adjustment mechanism (4) located in the middle. A booster pump (13) connected to the rotating connector (6) is installed inside the transition water tank (2). The regulating mechanism (4) includes a main body (41) installed on the top of the liquid distribution pipe (9), and a solenoid valve is installed at the top of the main body (41). The top two sides of the main body (41) are provided with pipe racks (42) arranged in a U-shape, and a T-shaped water outlet pipe (43) is rotatably installed between the two pipe racks (42). The water curtain spray mechanism (8) and the edge-locking spray mechanism (10) are installed at the outlet end of the water outlet pipe (43). The regulating mechanism (4) also includes a vertical arc-shaped rack (44) fixedly installed in the middle of the water outlet pipe (43), and a frame fixedly installed on the side of the main body (41). (45) A vertical adjustment gear (46) is rotatably mounted on the top of the frame (45), and a vertical adjustment motor (47) connected to the vertical adjustment gear (46) is mounted on the side of the frame (45). The vertical adjustment gear (46) meshes with the vertical arc rack (44). The adjustment mechanism (4) also includes a horizontal adjustment motor (48) fixedly mounted on the frame (45) and a horizontal arc rack (410) fixedly mounted on the liquid distribution pipe (9). A horizontal adjustment gear (49) meshes with the horizontal arc rack (410) on the output shaft of the horizontal adjustment motor (48). The locking edge spraying mechanism (10) includes a spray pipe body (101), and the inside of the spray pipe body (101) is provided with a compression channel (102) with a gradually decreasing inner diameter. The inner wall of the compression channel (102) is provided with spirally distributed guide blades (103). The outer end of the spray pipe body (101) is fitted with an annular nozzle (104), and the inner wall of the annular nozzle (104) is provided with multiple spirally distributed turbulence blades.

2. The dust suppression device for mine blasting according to claim 1, characterized in that, The rotary connector (6) includes a support pipe (61) connected to the outlet of the booster pump (13) and a rotary pipe seat (63) connected to the diverter pipe (7). A rotary seal (62) is provided between the support pipe (61) and the rotary pipe seat (63).

3. The air dust suppression device for mine blasting according to claim 2, characterized in that, The top of the transition water tank (2) is also equipped with a main control mechanism (5), which includes a main control motor and a main control reducer connected by transmission. The rotating tube seat (63) is fixedly installed on the output end of the main control reducer.

4. The air dust suppression device for mine blasting according to claim 1, characterized in that, The water curtain spray mechanism (8) includes a transition tube (81) and a diffuser nozzle (83) connected to each other. A converging cavity (82) with a trumpet-shaped structure is provided at the connection between the transition tube (81) and the diffuser nozzle (83). A duckbill-shaped strip nozzle (84) is provided at the outlet end of the diffuser nozzle (83).

5. The air dust suppression device for mine blasting according to claim 4, characterized in that, The diffuser nozzle (83) is fitted with a rectangular frame (85) on its outer side, and a swing plate (86) is hinged to the top and bottom of the rectangular frame (85). A control electric push rod (87) is hinged between the swing plate (86) and the rectangular frame (85). Multiple dispersion grooves (88) are provided on the surface of the swing plate (86).

Images