A spray dust suppression device for coal mining machines in high-face mining operations.

Abstract

This application discloses a spray dust suppression device for coal mining machines in high-face mining operations, belonging to the technical field of dust suppression devices for coal mining machines. It includes a base frame, with hydraulic cylinders fixedly mounted at both ends. The piston rods of the hydraulic cylinders are connected to a guide frame, and a sliding plate is slidably installed on the inner wall of the guide frame. Vertical plates are fixedly mounted at both ends of the bottom of the sliding plate, and a box cover is fixedly connected to the bottom of the vertical plates. A purification box is bolted to the box cover. This dust suppression device combines spray dust suppression and suction dust removal, significantly improving the removal efficiency of suspended matter in the air. Multiple mechanical structure adjustment methods ensure the applicability and optimal performance of the device under different working conditions. It can precisely control the spray range, angle, and position of the atomization, reducing unnecessary moisture evaporation loss during the atomization dust suppression process, saving resources. The modular design facilitates disassembly and cleaning, reducing daily maintenance costs.

Description

Technical Field

[0001] This application relates to the technical field of dust suppression devices for coal mining machines, and more specifically, to a spray dust suppression device for coal mining machines in high-face mining operations. Background Technology

[0002] When using coal mining machines for mechanized coal mining, a large amount of dust is generated. This dust not only seriously endangers the health of miners, but also affects visibility, increases the risk of accidents, and may cause safety hazards such as explosions. Traditional spray dust suppression methods often have problems such as limited coverage, large waste of water resources, and unsatisfactory dust suppression effect. Especially in working faces with large mining heights, the limitations of traditional equipment are more obvious due to the open space. In particular, traditional equipment relies solely on atomization spray to suppress dust in the working environment. After the dust falls to the ground, it is easy for it to be re-entrained, which will affect subsequent coal mining operations. In view of this, we propose a spray dust suppression device for coal mining machines in working faces with large mining heights. Utility Model Content

[0003] 1. Technical problems to be solved

[0004] The purpose of this application is to provide a spray dust suppression device for coal mining machines in high-face mining operations, which solves the technical problems mentioned in the background art. This dust suppression device combines spray dust suppression and suction dust removal, significantly improving the removal efficiency of suspended matter in the air. Multiple mechanical structure adjustment methods ensure the applicability and optimal performance of the device under different working conditions. It can precisely control the spray range, angle and position of atomization, reducing unnecessary water evaporation loss in the atomization dust suppression process, saving resources. The modular design facilitates disassembly and cleaning, reducing daily maintenance costs.

[0005] 2. Technical Solution

[0006] This application provides a spray dust suppression device for a coal mining machine in a high-face mining area, comprising: a base frame, with hydraulic cylinders fixedly mounted at both ends of the base frame; a guide frame connected to the piston rod of each hydraulic cylinder; a sliding plate slidably mounted on the inner wall of the guide frame; upright plates fixedly mounted at both ends of the bottom of the sliding plate; a box cover fixedly connected to the bottom of the upright plates; a purification box fixedly mounted on the box cover by bolts; a first chamber and a second chamber separated inside the purification box by a partition; dust suction pumps fixedly mounted on both sides of the purification box; a dust outlet pipe fixedly connected to the first chamber of the purification box; a water inlet pipe fixedly connected to the second chamber of the purification box; and an atomizing dust suppression mechanism mounted on the sliding plate for drawing water from the other chamber of the purification box and spraying it into a multi-dimensional space in an atomized structure.

[0007] By adopting the above technical solution, the device uses a base frame as the main support base of the overall device, with hydraulic cylinders installed at both ends. The piston rods of the hydraulic cylinders are connected to the guide frame, allowing the guide frame to move and adjust vertically. A sliding plate is installed on the guide frame, and the purification box, dust pump, and atomizing dust suppression mechanism are centrally installed on the sliding plate. The purification box is divided into two independent chambers—chamber one and chamber two—by a partition. The dust pump is connected to chamber one through a dust outlet pipe, allowing the dust pump to absorb dust from the working environment and transport it into chamber one for water washing dust removal. External water enters chamber two through an inlet pipe. The atomizing dust suppression mechanism is responsible for extracting water from chamber two and converting it into fine water mist particles, which are then sprayed into a multi-dimensional space to achieve rapid dust reduction in the working environment. Combining spray dust suppression and suction dust removal methods significantly improves the removal efficiency of suspended particles in the air.

[0008] Optionally, corner blocks are fixedly welded to the four corners of the bottom frame, and each corner block is provided with mounting holes.

[0009] By adopting the above technical solution, corner blocks are welded at the four corners of the bottom frame to facilitate the installation and positioning of the entire system, and mounting holes are opened on each corner block. The bottom frame can be firmly fixed to other fixed support structures by bolt fasteners.

[0010] Optionally, the base frame and guide frame are each connected to a telescopic rod structure at the four corners. The telescopic rod structure includes a long rod and a guide cylinder that are slidably connected. The bottom end of the long rod is fixedly connected to the base frame, and the upper end of the guide cylinder is fixedly connected to the guide frame.

[0011] By adopting the above technical solution, the telescopic rod structure is composed of a long rod and a guide cylinder that are slidably connected. Through the extension and retraction of the piston rod of the hydraulic cylinder, the guide frame can be adjusted within a certain range under the guidance of the telescopic rod structure, thereby adjusting the atomization spray height and better adapting to complex working conditions.

[0012] Optionally, the inner walls on both sides of the guide frame are provided with sliding grooves, and the slide plate is slidably installed along the sliding grooves via a slide bar.

[0013] By adopting the above technical solution, a sliding strip structure matching the sliding groove is installed on the skateboard, which allows the skateboard to slide horizontally and stably along the guide frame.

[0014] Optionally, L-shaped blocks are fixedly provided on the bottom surfaces of both ends of the guide frame, and a lead screw is rotatably installed between the L-shaped blocks. A motor is fixedly installed on one end of the guide frame, and the output end of the motor is connected to the lead screw for transmission. The lead screw is threadedly connected to the two vertical plates.

[0015] By adopting the above technical solution, the motor drives the lead screw to rotate. Because the lead screw is threadedly connected to the two vertical plates, the lead screw drives the vertical plates and the slide plate to generate horizontal displacement along the guide frame, thereby achieving the purpose of adjusting the atomization spray area. This realizes automated horizontal position adjustment, which is simple and quick to operate and can complete precise alignment without manual intervention.

[0016] Optionally, a filter plate 1 can be detachably installed in chamber 1 of the purification box, and three filter plates 2 can be detachably installed in chamber 2 of the purification box.

[0017] By adopting the above technical solution, considering the convenience of long-term maintenance and filtration effect, different types of filter elements are arranged in the two chambers of the purification box. One chamber has a removable filter plate, while three identical filter plates are installed in the second chamber. During the installation of filter plate one and filter plate two, the two chambers are sealed by a sealing structure to ensure that the internal water quality does not leak out, and they can be disassembled and replaced or cleaned regularly as needed.

[0018] Optionally, the atomizing dust suppression mechanism includes a water pump, which is fixedly installed on the upper surface of the slide plate by bolts. The water inlet of the water pump is fixedly connected to the two chambers of the purification box by a suction pipe. The water outlet of the water pump is fixedly connected to a three-way pipe, which is composed of a T-shaped pipe and two vertical pipes fixedly connected. A concave seat is fixedly sleeved on the outside of the T-shaped pipe of the three-way pipe. The concave seat is fixedly set on the upper surface of the slide plate. Multiple atomizing nozzles are threaded on the vertical pipe of the three-way pipe. A ball rod is rotatably installed on the upper end of the vertical pipe of the three-way pipe. A second atomizing nozzle is fixedly connected to the upper end of the ball rod. A T-shaped plate is fixedly connected between the ball rods. A second hydraulic cylinder is rotatably hinged between the T-shaped plate and the concave seat.

[0019] By adopting the above technical solution, the main structure of the atomizing dust suppression mechanism includes a water pump, a three-way pipe, atomizing nozzle one, atomizing nozzle two, a T-shaped plate, and a hydraulic cylinder two. The water pump draws filtered water from chamber two through the suction pipe and distributes it to atomizing nozzle one and atomizing nozzle two through the three-way pipe. Atomizing nozzle one is evenly distributed on the T-shaped tube of the three-way pipe and sprays atomized water to both sides of the device. Atomizing nozzle two is installed at the upper end of the T-shaped tube of the three-way pipe using a ball joint. The T-shaped plate and hydraulic cylinder two can be used to connect and allow atomizing nozzle two to swing flexibly, greatly expanding the spray range and achieving all-round coverage without dead angles. The spray mode can be adjusted in real time according to the site conditions, and ideal dust suppression effect can be obtained whether at close range or long distance.

[0020] Optionally, a grille is fixedly installed at the air inlet of the dust pump housing by screws.

[0021] By adopting the above technical solution, in order to prevent debris from clogging the inlet of the dust pump, a grid plate is installed, which can effectively prevent larger particles from entering the system and causing damage.

[0022] 3. Beneficial effects

[0023] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0024] 1. This dust suppression device combines spray dust suppression and suction dust removal, significantly improving the removal efficiency of suspended particles in the air;

[0025] 2. Multiple mechanical structure adjustment methods ensure the applicability and optimal performance of the device under different working conditions. It can precisely control the spray range, angle and position of atomization, which reduces unnecessary moisture evaporation loss in the atomization dust suppression process and saves resources.

[0026] 3. The modular design facilitates disassembly and cleaning, reducing daily maintenance costs. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of a spray dust suppression device for a coal mining machine in a high-face mining area, as disclosed in a preferred embodiment of this application.

[0028] Figure 2 This is a schematic diagram of the bottom frame and guide frame structure of a spray dust suppression device for a coal mining machine in a high-face mining area, as disclosed in a preferred embodiment of this application.

[0029] Figure 3 This application discloses a preferred embodiment of a spray dust suppression device for a coal mining machine in a high-face mining operation, including a purification box, an atomizing dust suppression mechanism, and a dust suction pump.

[0030] Figure 4 This application discloses a preferred embodiment of a spray dust suppression device for a coal mining machine in a high-mining face. Figure 3 Enlarged structural diagram at point A in the middle;

[0031] Figure 5 This application discloses a preferred embodiment of a spray dust suppression device for a coal mining machine in a high-mining face. Figure 3 Enlarged structural diagram at point B;

[0032] The following are the labels in the diagram: 1. Base frame; 11. Corner block; 2. Hydraulic cylinder one; 3. Guide frame; 31. Slide groove; 4. Telescopic rod structure; 41. Long rod; 42. Guide cylinder; 5. Slide plate; 51. Vertical plate; 6. Purification box; 61. Box cover; 62. Partition; 63. Filter plate one; 64. Filter plate two; 7. Atomizing dust suppression mechanism; 71. Water pump; 72. Water suction pipe; 73. T-shaped pipe; 731. Concave seat; 74. Atomizing nozzle one; 75. Atomizing nozzle two; 751. Ball rod tube; 76. T-shaped plate; 77. Hydraulic cylinder two; 8. Dust pump; 81. Grille plate; 82. Dust outlet pipe; 9. Water inlet pipe; 10. Motor; 101. Lead screw. Detailed Implementation

[0033] The present application will be further described in detail below with reference to the accompanying drawings.

[0034] Reference Figures 1 to 5 This application provides a spray dust suppression device for a coal mining machine in a high-face mining area, comprising: a base frame 1, with hydraulic cylinders 2 fixedly mounted at both ends of the base frame 1, the piston rods of the hydraulic cylinders 2 connected to a guide frame 3, a sliding plate 5 slidably mounted on the inner wall of the guide frame 3, upright plates 51 fixedly mounted at both ends of the bottom of the sliding plate 5, a box cover 61 fixedly connected to the bottom of the upright plates 51, a purification box 6 fixedly mounted on the box cover 61 by bolts, the purification box 6 is divided into a first chamber and a second chamber by a partition 62, a dust suction pump 8 is fixedly mounted on both sides of the purification box 6, a dust outlet pipe 82 is fixedly connected to one chamber of the purification box 6 by the dust suction pump 8, a water inlet pipe 9 is fixedly connected to the second chamber of the purification box 6, and an atomizing dust suppression mechanism 7 is mounted on the sliding plate 5 to draw water from the other chamber of the purification box 6 and spray it into a multi-dimensional space in an atomized structure. The device uses the base frame 1 as the main support base of the overall device, with hydraulic cylinders 2 mounted at both ends and connected to the guide frame through the piston rods of the hydraulic cylinders 2. 3. This allows the guide frame 3 to move and adjust vertically. A sliding plate 5 is installed on the guide frame 3, and the purification box 6, the vacuum pump 8, and the atomizing dust suppression mechanism 7 are centrally installed on the sliding plate 5. The purification box 6 is divided into two independent chambers—chamber one and chamber two—by a partition 62. The vacuum pump 8 is connected to chamber one by a dust outlet pipe 82, allowing the vacuum pump 8 to absorb dust from the working environment and transport it into chamber one for water washing dust removal. The box cover 61 is equipped with an exhaust channel structure to facilitate the balance of internal and external pressure. An external water source is provided to enter chamber two through a water inlet pipe 9. The atomizing dust suppression mechanism 7 is responsible for extracting water from chamber two and converting it into fine water mist particles, which are then sprayed into a multi-dimensional space to achieve rapid dust reduction in the working environment. Combining spray dust suppression and suction dust removal methods significantly improves the removal efficiency of suspended particles in the air.

[0035] Reference Figure 1and Figure 2 Corner blocks 11 are fixedly welded at the four corners of the bottom frame 1. Each corner block 11 has a mounting hole. In order to facilitate the installation and positioning of the entire system, corner blocks 11 are welded at the four corners of the bottom frame 1, and mounting holes are opened on each corner block 11. The bottom frame 1 can be firmly fixed to other fixed support structures by bolt fasteners.

[0036] Reference Figure 1 and Figure 2 The base frame 1 and guide frame 3 are each connected to a telescopic rod structure 4 at their four corners. The telescopic rod structure 4 includes a long rod 41 and a guide cylinder 42 that are slidably connected. The bottom end of the long rod 41 is fixedly connected to the base frame 1, and the upper end of the guide cylinder 42 is fixedly connected to the guide frame 3. The telescopic rod structure 4 is composed of the long rod 41 and the guide cylinder 42 that are slidably connected. By extending and retracting the piston rod of the hydraulic cylinder 2, the guide frame 3 can be adjusted within a certain range under the guidance of the telescopic rod structure 4, thereby adjusting the atomization spray height and better adapting to complex working conditions.

[0037] Reference Figure 1 and Figure 2 The inner walls on both sides of the guide frame 3 are provided with grooves 31. The slide plate 5 is slidably installed along the grooves 31 by means of a slide bar. A slide bar structure matching the grooves 31 is installed on the slide plate 5, which allows the slide plate 5 to slide horizontally and stably along the guide frame 3.

[0038] Reference Figure 1 and Figure 3 L-shaped blocks are fixedly installed on the bottom surfaces of both ends of the guide frame 3, and lead screws 101 are rotatably installed between the L-shaped blocks. A motor 10 is fixedly installed on one end of the guide frame 3. The output end of the motor 10 is connected to the lead screw 101. The lead screw 101 is threadedly connected to the two vertical plates 51. The motor 10 drives the lead screw 101 to rotate. Because the lead screw 101 is threadedly connected to the two vertical plates 51, the lead screw 101 drives the vertical plates 51 and the slide plate 5 to generate horizontal displacement along the guide frame 3, thereby achieving the purpose of adjusting the atomization spray area. This realizes automated horizontal position adjustment, which is simple and quick to operate and can complete precise alignment without manual intervention.

[0039] Reference Figure 3 and Figure 4The first chamber of the purification box 6 has a detachable filter plate 63 installed inside, and the second chamber of the purification box 6 has three detachable filter plates 64 installed inside. Considering the convenience of long-term maintenance and the filtration effect, different types of filter elements are arranged in the two chambers of the purification box 6. The first chamber has a detachable filter plate 63, while the second chamber has three identical filter plates 64 installed inside. During the installation of the filter plates 63 and 64, the two chambers are sealed using a sealing structure to ensure that the internal water quality does not leak out, and they can be disassembled and replaced or cleaned periodically as needed.

[0040] Reference Figure 3 and Figure 5 The atomizing dust suppression mechanism 7 includes a water pump 71, which is bolted to the upper surface of the slide plate 5. The water pump 71's inlet is fixedly connected to the chamber of the purification box 6 via a suction pipe 72. The water pump 71's outlet is fixedly connected to a three-way pipe 73, which consists of a T-shaped pipe and two vertical pipes. A concave seat 731 is fixedly fitted onto the outside of the T-shaped pipe of the three-way pipe 73, and the concave seat 731 is fixedly mounted on the upper surface of the slide plate 5. Multiple atomizing nozzles 74 are threaded onto the vertical pipe of the three-way pipe 73. A ball rod tube 751 is rotatably mounted on the upper end of the vertical pipe of the three-way pipe 73. A second atomizing nozzle 75 is fixedly connected to the upper end of the ball rod tube 751. A T-shaped plate 76 is fixedly connected between the ball rod tubes 751. A second hydraulic cylinder 77 is rotatably hinged between the T-shaped plate 76 and the concave seat 731. The main structural components of the atomizing dust suppression mechanism 7 include... It comprises a water pump 71, a three-way pipe 73, atomizing nozzle 1 74, atomizing nozzle 2 75, a T-shaped plate 76, and a hydraulic cylinder 2 77. The water pump 71 draws filtered water from the second chamber through the suction pipe 72 and distributes it to atomizing nozzle 1 74 and atomizing nozzle 2 75 through the three-way pipe 73. Atomizing nozzle 1 74 is evenly distributed on the T-shaped tube of the three-way pipe 73 and sprays atomized water to both sides of the device. Atomizing nozzle 2 75 is ball-jointed at the upper end of the T-shaped tube of the three-way pipe 73 using a ball rod tube 751. It can be connected by the T-shaped plate 76 and the hydraulic cylinder 2 77, which allows atomizing nozzle 2 75 to swing flexibly, greatly expanding the spray range and achieving all-round coverage without dead angles. The spray mode can be adjusted in real time according to the site conditions, and ideal dust suppression effect can be obtained at both close and long distances.

[0041] Reference Figure 1 and Figure 3 A grille plate 81 is fixedly installed at the air inlet of the housing of the vacuum pump 8 by screws. In order to prevent debris from clogging the inlet of the vacuum pump 8, a grille plate 81 is installed to effectively prevent larger particles from entering the system and causing damage.

[0042] Working principle: When the coal mining machine starts working, the dust suction pump 8 and water pump 71 are activated. An external water source is supplied to chamber two via the inlet pipe 9. Water pump 71 draws water from chamber two through the suction pipe 72 and sends it into a three-way pipe 73 composed of a T-shaped pipe and two vertical pipes. Multiple horizontally installed atomizing nozzles 74 and two vertically installed atomizing nozzles 75 then spray out a fine water curtain, forming a concave diffusion surface. Hydraulic cylinder 77 pushes the T-shaped plate 76 to rotate, causing the nozzles on the ball rod tube 751 to move in a circular motion, expanding the spray coverage. Simultaneously, the height of the entire device is adjusted by controlling the action of hydraulic cylinder 2, and the guide frame 3 is finely adjusted horizontally in conjunction with the telescopic rod structure 4. Furthermore, the motor 10 drives the lead screw 101 to adjust the position of the vertical plate 51, ensuring that the atomizing dust suppression mechanism 7 is always in the optimal working area and in the best working state. This allows the dust in the working environment to fall rapidly due to the influence of the mist, quickly reducing the dust content in the working environment. When the dust falls to a certain height, the dust-laden air is initially filtered by the grid plate 81, then sucked in by the dust pump 8, and enters the first chamber of the purification box 6 through the dust outlet pipe 82. After being washed with water to remove the dust contained in the air, it is further purified by the filter plate 63. The clean air is then discharged through the ventilation groove on the box cover 61. This dust suppression device combines spray dust suppression and suction dust removal, ultimately achieving the purpose of rapidly reducing the dust concentration in the surrounding environment.

Claims

1. A spray dust suppression device for a coal mining machine in a high-face mining operation, characterized in that: Includes: a base frame (1), with hydraulic cylinders (2) fixedly installed at both ends of the base frame (1), the piston rod of the hydraulic cylinders (2) being connected to a guide frame (3), a sliding plate (5) being slidably installed on the inner wall of the guide frame (3), upright plates (51) being fixedly installed at both ends of the bottom of the sliding plate (5), a box cover (61) being fixedly connected to the bottom of the upright plate (51), a purification box (6) being fixedly installed on the box cover (61) by bolts, a first chamber and a second chamber being separated inside the purification box (6) by a partition (62), a dust pump (8) being fixedly installed on both sides of the purification box (6), a dust outlet pipe (82) being fixedly connected to the first chamber of the purification box (6), a water inlet pipe (9) being fixedly connected to the second chamber of the purification box (6), and an atomizing dust suppression mechanism (7) being installed on the sliding plate (5) for sucking up water from the other chamber of the purification box (6) and spraying it into a multi-dimensional space in an atomizing structure.

2. The spray dust suppression device for a coal mining machine in a high-face mining area according to claim 1, characterized in that: The bottom frame (1) is fixedly welded with corner blocks (11) at each of the four corners, and each corner block (11) has a mounting hole.

3. The spray dust suppression device for a coal mining machine in a high-face mining area according to claim 1, characterized in that: The bottom frame (1) and the guide frame (3) are each connected to a telescopic rod structure (4) at the four corners. The telescopic rod structure (4) includes a long rod (41) and a guide cylinder (42) that are slidably connected. The bottom end of the long rod (41) is fixedly connected to the bottom frame (1), and the upper end of the guide cylinder (42) is fixedly connected to the guide frame (3).

4. A spray dust suppression device for a coal mining machine in a high-face mining area according to claim 1, characterized in that: The inner walls on both sides of the guide frame (3) are provided with sliding grooves (31), and the slide plate (5) is installed by sliding along the sliding grooves (31) via a slide bar.

5. A spray dust suppression device for a coal mining machine in a high-face mining area according to claim 1, characterized in that: The bottom surfaces of both ends of the guide frame (3) are fixedly provided with L-shaped blocks, and a lead screw (101) is rotatably installed between the L-shaped blocks. A motor (10) is fixedly installed at one end of the guide frame (3). The output end of the motor (10) is connected to the lead screw (101) for transmission. The lead screw (101) is threadedly connected to the two upright plates (51).

6. A spray dust suppression device for a coal mining machine in a high-face mining area according to claim 1, characterized in that: A filter plate 1 (63) is detachably installed in the first chamber of the purification box (6), and three filter plates 2 (64) are detachably installed in the second chamber of the purification box (6).

7. A spray dust suppression device for a coal mining machine in a high-face mining area according to claim 1, characterized in that: The atomizing dust suppression mechanism (7) includes a water pump (71), which is fixedly installed on the upper surface of the slide plate (5) by bolts. The water inlet of the water pump (71) is fixedly connected to the two chambers of the purification box (6) by a suction pipe (72). The water outlet of the water pump (71) is fixedly connected to a three-way pipe (73), which is composed of a T-shaped pipe and two vertical pipes fixedly connected. A concave seat (731) is fixedly sleeved on the outside of the T-shaped pipe of the three-way pipe (73). The concave seat (731) is fixedly mounted on the upper surface of the slide plate (5). Multiple atomizing nozzles (74) are threadedly installed on the riser of the three-way pipe (73). A ball rod pipe (751) is rotatably mounted on the upper end of the riser of the three-way pipe (73). An atomizing nozzle (75) is fixedly connected to the upper end of the ball rod pipe (751). A T-shaped plate (76) is fixedly connected between the ball rod pipes (751). A hydraulic cylinder (77) is rotatably hinged between the T-shaped plate (76) and the concave seat (731).

8. A spray dust suppression device for a coal mining machine in a high-face mining area according to claim 1, characterized in that: The dust pump (8) has a grille (81) fixedly installed at the air inlet of the housing by screws.

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