A kind of hydraulic support spray dust-settling device of fully mechanized working face

Abstract

The application provides a kind of hydraulic support spray dust-settling device of fully mechanized coal mining face, including: water tank, spray dust-settling mechanism and air draft dust-settling mechanism, including: spray dust-settling mechanism includes mounting seat and atomizing nozzle;Mounting seat connects water passing box body, and water pump is arranged between water passing box body and water tank.Wind-draft dust-settling mechanism includes filter box body;Filter box body's air inlet end is equipped with the ventilation pipe with fan, and air outlet end is equipped with ventilation groove, and multiple filter screen plates are arranged in filter box body, bottom is communicated with water tank, and water is injected to water surface position.The device has double functions of integrated spray dust-settling and air draft dust-settling, spray dust-settling mechanism utilizes the interaction of high-pressure water mist and dust particles to promote its rapid settlement, at the same time, air draft dust-settling mechanism extracts dust-containing air by fan, and the air is filtered and purified by multiple filter screen plates, which further reduces the diffusion and pollution of dust, and the purified air is discharged back to the environment, which effectively improves the air quality of working area.

Description

Technical Field

[0001] This application relates to the field of spray dust suppression devices, and in particular to a spray dust suppression device for hydraulic supports in fully mechanized mining faces. Background Technology

[0002] During the coal mining process, the coal mining machine moves laterally left and right to mine coal in the width direction of the coal seam wall. The coal mined by the coal mining machine is output by the corresponding conveyor. The coal mining machine generates a lot of dust during its left and right movement. In addition, a lot of dust is also generated during the adjustment of the hydraulic support. At this time, the hydraulic support spray dust suppression device of the fully mechanized mining face is required.

[0003] Traditional spray dust suppression devices on hydraulic supports in fully mechanized mining faces are an important means of controlling dust. These devices spray water mist onto dust-generating areas using nozzles mounted on the hydraulic supports. The interaction between the water mist and dust particles causes the dust to settle, thus reducing dust levels. This type of spray dust suppression device can reduce dust concentration at the working face to a certain extent and has advantages such as relatively simple structure and easy installation.

[0004] Existing spray dust suppression devices, which rely on simple spraying, are ineffective at controlling fine and high-concentration dust, especially in high-dust-generating conditions such as high-speed coal cutting by coal mining machines. Spray dust suppression cannot fully meet dust control requirements. Furthermore, the water mist generated by the spray can easily form fog in localized areas, affecting the visibility of workers and posing a certain threat to safe production. Utility Model Content

[0005] This application addresses the shortcomings of existing spray dust suppression devices, which rely solely on spraying to effectively handle fine and high-concentration dust, and the problem that water mist can easily form fog in localized areas, obstructing the visibility of workers. The application provides a spray dust suppression device for hydraulic supports in fully mechanized mining faces, comprising:

[0006] A water tank, wherein a sliding seat is provided on the top of the water tank, and longitudinal grooves are provided through the two side walls of the sliding seat;

[0007] The U-shaped slider is slidably assembled in the groove, and mounting plates are provided at both ends of the top of the U-shaped slider;

[0008] The dust suppression spray mechanism includes: a support rod fixed to the mounting plate, a mounting base fixed to the support rod, and an atomizing nozzle;

[0009] The mounting base is connected to an adjustable-angle water-passing box via a rotating shaft, and there are two atomizing nozzles symmetrically arranged on both sides of the water-passing box.

[0010] A water pump is provided between the water tank and the water passage box. The input end of the water pump is connected to the water tank, and the output end of the water pump is connected to the water passage box through a water supply pipe.

[0011] The dust extraction and dust suppression mechanism includes: a filter box fixed to the side of the water tank away from the sliding seat;

[0012] The filter box has a ventilation pipe with a fan at the air inlet and a ventilation slot at the air outlet. The filter box has multiple layers of filter screens inside, and the bottom is connected to the water tank and filled with water up to the water surface.

[0013] In one feasible implementation, the multi-layer filter plate inside the filter box includes a first filter plate, a second filter plate, and a third filter plate arranged sequentially along the airflow direction;

[0014] The mesh size of the first filter plate, the second filter plate, and the third filter plate decreases progressively from the air inlet end to the air outlet end of the filter box.

[0015] In one feasible implementation, a motor is provided on the side wall of the sliding seat;

[0016] The motor output end is connected to and fixedly connected to the sliding seat by a screw rod;

[0017] One end of the screw is rotatably mounted on the groove wall of the slide, and the other end of the screw passes through the U-shaped slider and is threadedly connected to the U-shaped slider.

[0018] In one feasible implementation, the mounting base has fixed seats on both sides, and the two ends of the rotating shaft pass through the fixed seats and are rotatably connected to the fixed seats.

[0019] A handwheel is also provided on the outside of the fixed base. The handwheel is fixedly connected to one end of the rotating shaft and is used to manually adjust the rotation angle of the rotating shaft.

[0020] One feasible implementation also includes: a base;

[0021] The base is equipped with lifting cylinders at the four corners of its top, and a horizontally set base plate is fixedly connected to the top of the cylinders. The water tank is fixedly installed on the upper surface of the base plate.

[0022] In one feasible implementation, an inlet pipe is fixedly installed on the water tank, the inlet pipe passes through the water tank and communicates with the inside of the water tank, and the inlet pipe is located between the sliding seat and the filter box.

[0023] In one feasible implementation, the spray direction of the atomizing nozzle is spatially intersected with the air intake direction of the ventilation duct.

[0024] In one feasible implementation, the bottom edges of the first filter plate, the second filter plate, and the third filter plate all extend below the water surface to form a liquid seal structure.

[0025] In one feasible implementation, the two ends of the screw are fixed to the groove wall of the slide by bearing seats, and the sliding stroke of the U-shaped slider covers the entire effective length of the slide.

[0026] In one feasible implementation, the water supply pipe is a flexible hose, with one end of the water supply pipe fixedly connected to the output end of the water pump and the other end fixedly connected to the inlet of the water passage box.

[0027] This application provides a spray dust suppression device for hydraulic supports in fully mechanized mining faces. After the fans in several ventilation pipes are started, they can draw air containing a large amount of dust from the surrounding environment into the filter box. The multi-stage filter plates can intercept and purify the air multiple times. The purified air will be discharged to the outside through several ventilation slots. The intercepted and filtered impurities and dust will fall into the water surface for deposition, thereby greatly increasing the dust suppression effect and solving the problem that current spray dust suppression methods are difficult to handle high concentrations and fine dust. Attached Figure Description

[0028] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the embodiments of the present invention. Obviously, the drawings described below are merely some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0029] Figure 1 This is a schematic diagram of the structure of a spray dust suppression device for a hydraulic support in a fully mechanized mining face, as shown in an exemplary embodiment of this application.

[0030] Figure 2 This is a cross-sectional view of the interior of the filter housing shown in an exemplary embodiment of this application.

[0031] Attached image annotations:

[0032] 1-Base; 2-Cylinder; 3-Base plate; 4-Water tank; 5-Inlet pipe; 6-Sliding seat; 7-Slide groove; 8-Motor; 9-Screw; 10-U-shaped slider; 11-Mounting plate; 12-Support rod; 13-Mounting seat; 14-Fixed seat; 15-Rotating shaft; 16-Handwheel; 17-Connecting rod; 18-Water passage box; 19-Atomizing nozzle; 20-Water pump; 21-Water supply pipe; 22-Filter box; 23-Ventilation pipe; 24-Fan; 25-Ventilation slot; 26-First filter plate; 27-Second filter plate; 28-Third filter plate; 29-Water surface. Detailed Implementation

[0033] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided to make the present invention more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a full understanding of the implementation of embodiments of the present invention.

[0034] Traditional spray dust suppression devices on hydraulic supports in fully mechanized mining faces are an important means of controlling dust. These devices spray water mist onto dust-generating areas using nozzles mounted on the hydraulic supports. The interaction between the water mist and dust particles causes the dust to settle, thus reducing dust levels. This type of spray dust suppression device can reduce dust concentration at the working face to a certain extent and has advantages such as relatively simple structure and easy installation. However, existing spray dust suppression devices, which rely solely on spraying, are not effective at handling fine dust or high-concentration dust, especially under conditions of high dust generation such as high-speed coal cutting by the mining machine. In these situations, spray dust suppression cannot fully meet the dust control requirements. Furthermore, the water mist generated by the spray can easily form fog in localized areas, affecting the visibility of workers and posing a certain impact on safe production.

[0035] To solve the above problems, refer to Figure 1 and Figure 2 As shown in the figure, this embodiment provides a spray dust suppression device for hydraulic supports in fully mechanized mining faces, including a water tank 4, a sliding seat 6, a U-shaped slider 10, a spray dust suppression mechanism, and a ventilation dust suppression mechanism.

[0036] The water tank 4 is the water storage component of the entire device, and a sliding seat 6 is provided on the top. The two side walls of the sliding seat 6 are provided with longitudinal grooves 7, which are used to install and support the U-shaped slider 10, allowing it to slide longitudinally within the grooves 7.

[0037] The U-shaped slider 10 is slidably fitted into the slide groove 7. Its U-shaped design allows for better fit with the slide groove 7 and ensures stability. Mounting plates 11 are provided at both ends of the top of the U-shaped slider 10. These mounting plates 11 are used to fix the spray dust suppression mechanism.

[0038] The spray dust suppression mechanism generates water mist to reduce the concentration of dust in the air. The spray dust suppression mechanism includes a support rod 12 fixed to the mounting plate 11, which provides support and fixation. A mounting base 13 is fixed to the top of the support rod 12, which is used to mount and fix the water-passing box 18.

[0039] The water-passing box 18 is angle-adjustable and connected to the mounting base 13 via a pivot 15. The angle of the water-passing box 18 can be adjusted according to actual needs to optimize the spray direction of the water mist. Atomizing nozzles 19 are symmetrically arranged on both sides of the water-passing box 18. These atomizing nozzles 19 are used to atomize water and spray it into the air to achieve a dust suppression effect.

[0040] The device in this embodiment also includes a water pump 20, which is used to transport water from the water tank 4 to the water passage box 18. The input end of the water pump 20 is connected to the water tank 4, and the output end is connected to the water passage box 18 through the water supply pipe 21. When the water pump 20 is started, it draws water from the water tank 4 and transports it to the water passage box 18 through the water supply pipe 21, and finally sprays it out from the atomizing nozzle 19.

[0041] In addition to the spray dust suppression mechanism, the device also includes a dust extraction dust suppression mechanism. The dust extraction dust suppression mechanism includes a filter housing 22 fixed to the side of the water tank 4 away from the sliding seat 6. The air inlet of the filter housing 22 is equipped with a ventilation pipe 23 with a fan 24 for drawing in air containing dust. The air outlet is equipped with a ventilation slot 25 for discharging filtered air.

[0042] Inside the filter housing 22, multiple layers of filter screens are installed to intercept and filter dust from the air. Meanwhile, the bottom of the filter housing 22 is connected to the water tank 4, and water is filled to the water surface 29. In this way, the intercepted dust and impurities fall onto the water surface 29 and settle, further purifying the air.

[0043] In practice, after the water pump 20 starts, it draws water from the water tank 4 and delivers it to the water-passing box 18 through the water pipe 21. Finally, the water is sprayed out as fine water mist by the atomizing nozzle 19. When these water mists come into contact with dust particles in the air, they increase the mass of the dust particles through adsorption, humidification, and encapsulation, causing them to settle under gravity. At the same time, after the fan 24 starts, it draws dusty air from the outside into the filter box 22 through the ventilation pipe 23. Inside the filter box 22, the air is filtered by multiple layers of filter plates, and the dust particles are intercepted and deposited on the water surface 29. The purified air is then discharged through the ventilation slot 25.

[0044] This embodiment effectively solves the problem of traditional spray dust suppression devices' poor performance in handling high concentrations and fine dust by combining spray dust suppression and ventilation dust suppression. Simultaneously, the design of the ventilation dust suppression mechanism avoids the formation of fog in localized areas by the water mist generated by the spray, which could obstruct the visibility of workers. Through the dual effects of spray dust suppression and ventilation dust suppression, this device significantly improves dust suppression efficiency and effectively reduces the dust concentration at the fully mechanized mining face. Furthermore, by adjusting the angle of the water-passing box 18 and the position of the U-shaped slider 10 within the chute 7, the dust suppression effect can be further optimized to meet the dust suppression requirements under different working conditions.

[0045] In some embodiments of this application, the multi-layer filter plates within the filter housing 22 include a first filter plate 26, a second filter plate 27, and a third filter plate 28 arranged sequentially along the airflow direction. These filter plates are designed to filter dust in the air step-by-step to improve the filtration effect.

[0046] The mesh size of the first filter plate 26, the second filter plate 27, and the third filter plate 28 gradually decreases from the air inlet end to the air outlet end of the filter housing 22. This design ensures that larger dust particles are intercepted on the first filter plate 26, while smaller dust particles are further intercepted on the subsequent second filter plate 27 and third filter plate 28.

[0047] In practice, when dust-laden air enters the filter housing 22 through the ventilation duct 23, the dust first encounters the first filter plate 26. The first filter plate 26 has a relatively large mesh size, which can intercept larger dust particles. Then, the air continues to flow to the second filter plate 27, which has a smaller mesh size, further intercepting smaller dust particles. Finally, the air flows to the third filter plate 28, which has the smallest mesh size, intercepting the finest dust particles.

[0048] After being filtered by three layers of filter plates, dust and impurities in the air are effectively intercepted and fall onto the water surface 29 for deposition. The purified air is then discharged to the outside through the ventilation slot 25.

[0049] This step-by-step filtration design significantly improves filtration efficiency, ensuring that dust and impurities in the air are effectively intercepted. Simultaneously, because the mesh size of the filter plate gradually decreases, it can accommodate dust particles of different sizes, expanding the applicability of the device. This embodiment, through the design of a filter plate with a gradient filtration structure, improves the interception efficiency of airborne dust particles, especially for fine dust particles.

[0050] In some embodiments of this application, a motor 8 is provided on the side wall of the sliding seat 6. The motor 8 serves as a power source to drive the screw 9 to rotate. The output end of the motor 8 is connected through the sliding seat 6 and fixedly connected to the screw 9. This design ensures that the rotational power of the motor 8 can be transmitted to the screw 9.

[0051] One end of the screw 9 is rotatably mounted on the wall of the slide groove 7, and the other end passes through the U-shaped slider 10 and is threadedly connected to the U-shaped slider 10. This design allows the U-shaped slider 10 to move along the axial direction of the screw 9 within the slide groove 7 when the screw 9 rotates.

[0052] When motor 8 starts, it drives screw 9 to rotate. Since U-shaped slider 10 is threadedly connected to screw 9, U-shaped slider 10 moves along slide groove 7 under the rotation of screw 9. By controlling the rotation direction and speed of motor 8, the movement direction and speed of U-shaped slider 10 can be controlled.

[0053] In this embodiment, the spray dust suppression mechanism can be adjusted in position according to actual needs to optimize the dust suppression effect. For example, during the movement of the coal mining machine, the position of the U-shaped slider 10 can be adjusted to ensure that the spray dust suppression mechanism is always aligned with the dust-generating area, thereby improving dust suppression efficiency. At the same time, since the transmission method of the motor 8 and the screw 9 is stable and reliable, the stability and accuracy of the U-shaped slider 10 during movement can be ensured.

[0054] This embodiment realizes the automatic adjustment function of the spray dust suppression mechanism, which improves the flexibility and adaptability of the equipment. By controlling the rotation direction and speed of the motor 8, the position and angle of the spray dust suppression mechanism can be precisely adjusted to meet different dust suppression needs.

[0055] In some embodiments of this application, the spray dust suppression mechanism further includes a mounting base 13 for mounting and fixing the water-passing box 18. Fixing seats 14 are provided on both sides of the mounting base 13 for supporting and fixing the rotating shaft 15.

[0056] The two ends of the rotating shaft 15 pass through the fixed base 14 and are rotatably connected to the fixed base 14. The water-passing box 18 can be rotated on the mounting base 13 via the rotating shaft 15, thereby adjusting its angle.

[0057] To allow manual adjustment of the rotation angle of the rotating shaft 15, a handwheel 16 is also provided on the outside of the fixed base 14. The handwheel 16 is fixedly connected to one end of the rotating shaft 15, so when the handwheel 16 is turned, the rotating shaft 15 can be rotated.

[0058] When it is necessary to adjust the spray angle of the atomizing nozzle 19, the handwheel 16 is turned to rotate the shaft 15. The rotation of the shaft 15 will cause the water box 18 and the atomizing nozzle 19 to rotate together, thereby changing their spray angle. By adjusting the spray angle, the water mist can be more evenly distributed on the working surface, improving the dust suppression effect.

[0059] This embodiment achieves flexible adjustment of the spray angle of the atomizing nozzle 19 by designing a manually adjustable rotating shaft mechanism, solving the problems of fixed spray angle and poor adaptability of traditional spray dust suppression devices. It realizes flexible adjustment of the spray angle of the atomizing nozzle 19, improving the adaptability and flexibility of the equipment. Furthermore, by adjusting the spray angle, the water mist can be more evenly distributed across the working surface, improving the dust suppression effect.

[0060] In some embodiments of this application, the device further includes: a base 1, a cylinder 2, and a base plate 3.

[0061] The base 1 is the supporting component of the entire device and is located at the bottom. At the four corners of the top of the base 1 are adjustable cylinders 2, which are used to adjust the height of the entire device. By controlling the extension and retraction of the cylinders 2, the height of the base plate 3 and the water tank 4 can be adjusted to adapt to different working environments and needs.

[0062] A horizontally positioned base plate 3 is fixedly connected to the top of cylinder 2, serving as a support and fixing element. A water tank 4 is fixedly installed on the upper surface of the base plate 3, acting as the water storage component of the entire device to store the water required for dust suppression.

[0063] When the height of the device needs to be adjusted, the base plate 3 and water tank 4 are moved up and down by controlling the extension and retraction of cylinder 2. In this way, the height of the device can be flexibly adjusted according to the actual conditions of the longwall mining face and the dust suppression requirements. For example, when the coal mining machine is at a low height, the device can be lowered to a suitable position to better cover the dust suppression area; when the coal mining machine is at a high height, the device can be raised to adapt to the working environment.

[0064] This embodiment achieves flexible height adjustment of the device by designing a height-adjustable cylinder mechanism, solving the problems of fixed height and poor adaptability of traditional spray dust suppression devices. The height-adjustable cylinder mechanism improves the adaptability and flexibility of the equipment. The device can adapt to different working environments and needs, providing greater convenience for dust suppression operations in fully mechanized mining faces.

[0065] In some embodiments of this application, a water inlet pipe 5 is fixedly installed on the water tank 4, and the water inlet pipe 5 passes through the water tank 4 and communicates with the interior of the water tank 4. The water inlet pipe 5 is located between the sliding seat 6 and the filter box 22, which facilitates the replenishment of water into the water tank 4. At the same time, the water inlet pipe 5 is located between the sliding seat 6 and the filter box 22. This positional design can prevent the water inlet pipe 5 from interfering with the normal operation of the spray dust suppression mechanism and the exhaust dust suppression mechanism.

[0066] When the water level in water tank 4 drops, water is replenished into water tank 4 through water inlet pipe 5. This ensures that water pump 20 has sufficient water to draw and deliver it to water collection box 18 for spraying by atomizing nozzle 19. At the same time, the design position of water inlet pipe 5 facilitates connection to an external water supply system, making water replenishment and management convenient.

[0067] In some embodiments of this application, the spray direction of the atomizing nozzle 19 is spatially intersecting with the air intake direction of the ventilation duct 23. This arrangement allows the two functions of spray dust suppression and ventilation dust suppression to work together to improve the dust suppression effect.

[0068] Specifically, when the atomizing nozzle 19 sprays water mist, the water mist comes into contact with and combines with dust particles in the air, causing them to settle. Simultaneously, the fan 24 draws in dusty air from the outside through the ventilation duct 23, which then enters the filter housing 22 for filtration and purification. Because the spray direction of the atomizing nozzle 19 and the air intake direction of the ventilation duct 23 are spatially intersecting, the water mist can more fully contact and combine with dust particles in the air, causing them to settle. This arrangement improves both the effectiveness of spray dust suppression and the ability of ventilation dust suppression.

[0069] This embodiment solves the problem of mutual interference between the two functions of spray dust suppression and ventilation dust suppression by designing a spatially cross arrangement of the atomizing nozzle 19 and the ventilation pipe 23. This allows the two functions of spray dust suppression and ventilation dust suppression to work together. The spatially cross arrangement allows the water mist to come into more full contact with the dust particles in the air and combine with them to settle, thus improving the dust suppression efficiency.

[0070] In some embodiments of this application, the bottom edges of the first filter plate 26, the second filter plate 27, and the third filter plate 28 all extend below the water surface 29 to form a liquid seal structure.

[0071] Understandably, when dust-laden air is filtered through the filter screen, the dust particles are intercepted and deposited on the screen. Because the bottom edge of the filter screen extends below the water surface 29 to form a liquid seal, the dust particles cannot escape from the bottom edge of the filter screen and instead settle on the water surface 29. This effectively prevents secondary pollution and escape of dust particles.

[0072] In some embodiments of this application, the two ends of the screw 9 are fixed to the groove wall of the slide 7 by bearing seats to ensure that the screw 9 remains stable during rotation. The sliding stroke of the U-shaped slider 10 covers the entire effective length of the slide 7, allowing the spray dust suppression mechanism to be adjusted in position over a wide range.

[0073] When the motor 8 starts, it drives the screw 9 to rotate. Since both ends of the screw 9 are fixed to the wall of the slide groove 7 via bearing seats, it can maintain stable rotation. Simultaneously, the U-shaped slider 10 is threadedly connected to the screw 9 and slides within the slide groove 7. By controlling the rotation direction and speed of the motor 8, the position of the U-shaped slider 10 within the slide groove 7 can be precisely adjusted, thereby changing the spray range and angle of the dust suppression mechanism. Because the sliding stroke of the U-shaped slider 10 covers the entire effective length of the slide groove 7, the dust suppression mechanism can be positioned within a wide range to meet different dust suppression needs.

[0074] This embodiment solves the problem of limited position adjustment range of the spray dust suppression mechanism by designing a structure in which the two ends of the screw are fixed by bearing seats, and a design in which the sliding stroke of the U-shaped slider covers the entire effective length of the chute, thereby improving the flexibility and adaptability of the equipment.

[0075] In some embodiments of this application, the water supply pipe 21 adopts a flexible hose design, with one end fixedly connected to the output end of the water pump 20 and the other end fixedly connected to the inlet of the water box 18.

[0076] The water supply pipe 21 is designed as a flexible hose, allowing it to be bent and extended as needed to adapt to different installation environments and space constraints. For example, when installed in a confined space, the water supply pipe 21 can be bent to accommodate space limitations; when long-distance water delivery is required, the water supply pipe 21 can be extended to extend the delivery distance.

[0077] As can be seen from the above embodiments, the specific working process of the spray dust suppression device for the hydraulic support of the fully mechanized mining face provided by this utility model is as follows: First, several cylinders are started to adjust the height of the base plate. After adjustment, water is introduced into the water tank through the water inlet pipe. Then, the water pump is started to pump water into the water box and spray water mist from the symmetrical atomizing nozzles to suppress dust. At this time, the left and right positions of the two atomizing nozzles can be adjusted by starting the motor to make the screw rotate clockwise or counterclockwise so that the slider slides horizontally in the slide groove. At the same time, the handwheel can be turned to drive the rotating shaft to adjust the angle of the two atomizing nozzles. Then, several fans can be started to draw the surrounding air containing high concentration of fine dust into the filter box. The air will be filtered and intercepted by three filter plates and then discharged to the outside through several ventilation slots. The filtered dust and impurities will fall onto the water surface for deposition due to gravity.

[0078] In summary, the dust suppression spray device for hydraulic supports in fully mechanized mining faces provided in this application improves dust suppression efficiency and the safety of the working environment. This device integrates both spray and exhaust dust suppression functions, achieving comprehensive dust control. The spray dust suppression mechanism utilizes the interaction between high-pressure water mist and dust particles to effectively increase the mass of dust particles, promoting rapid settling and significantly reducing the dust concentration in the air. Simultaneously, the exhaust dust suppression mechanism draws in dust-laden air via a fan, which is then filtered and purified through multi-stage filter plates, further reducing dust diffusion and pollution. The purified air is then discharged back into the environment, effectively improving air quality in the working area. The device is flexibly designed; the position and angle of the spray dust suppression mechanism are adjustable to adapt to dust suppression needs under different working conditions. The cylinder adjustment function allows for flexible installation of the device according to working faces at different heights, ensuring maximum dust suppression effect. The coordinated operation of the water pump and motor ensures stable water mist spraying and stable device operation, improving the continuity and reliability of dust suppression operations.

[0079] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the disclosure in the specification and the embodiments. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein.

Claims

1. A dust suppression spraying device for hydraulic supports in fully mechanized mining faces, characterized in that, include: Water tank (4), the top of the water tank (4) is provided with a sliding seat (6), and longitudinal grooves (7) are opened through the two side walls of the sliding seat (6); U-shaped slider (10) is slidably assembled in the groove (7), and mounting plates (11) are provided at both ends of the top of the U-shaped slider (10). The dust suppression spray mechanism includes: a support rod (12) fixed on the mounting plate (11), a mounting base (13) fixed on the support rod (12), and an atomizing nozzle (19). The mounting base (13) is connected to the adjustable angle water passage box (18) via a rotating shaft (15), and there are two atomizing nozzles (19) symmetrically arranged on both sides of the water passage box (18). A water pump (20) is provided between the water tank (4) and the water passage box (18). The input end of the water pump (20) is connected to the water tank (4), and the output end of the water pump (20) is connected to the water passage box (18) through a water supply pipe (21). The dust extraction mechanism includes a filter box (22) fixed to the side of the water tank (4) away from the sliding seat (6). The air inlet of the filter box (22) is provided with a ventilation pipe (23) with a fan (24), and the air outlet is provided with a ventilation slot (25). The filter box (22) is provided with a multi-layer filter screen, and the bottom is connected to the water tank (4) and water is filled to the water surface (29). The multi-layer filter plates inside the filter box (22) include a first filter plate (26), a second filter plate (27) and a third filter plate (28) arranged sequentially along the airflow direction. The mesh size of the first filter plate (26), the second filter plate (27) and the third filter plate (28) gradually decreases from the air inlet end to the air outlet end of the filter box (22); The bottom edges of the first filter plate (26), the second filter plate (27) and the third filter plate (28) all extend below the water surface (29) to form a liquid seal structure; The spray direction of the atomizing nozzle (19) is spatially intersected with the air intake direction of the ventilation pipe (23).

2. The dust suppression spraying device for a hydraulic support in a fully mechanized mining face according to claim 1, characterized in that, The sliding seat (6) has a motor (8) on its side wall; The output end of the motor (8) is connected to the sliding seat (6) and fixedly connected to a screw (9). One end of the screw (9) is rotatably mounted on the groove wall of the slide (7), and the other end of the screw (9) passes through the U-shaped slider (10) and is threadedly connected to the U-shaped slider (10).

3. A dust suppression spraying device for a hydraulic support in a fully mechanized mining face according to claim 1, characterized in that, The mounting base (13) has fixed seats (14) on both sides, and the two ends of the rotating shaft (15) pass through the fixed seats (14) and are rotatably connected to the fixed seats (14). A handwheel (16) is also provided on the outside of the fixed base (14). The handwheel (16) is fixedly connected to one end of the rotating shaft (15) and is used to manually adjust the rotation angle of the rotating shaft (15).

4. A dust suppression spraying device for a hydraulic support in a fully mechanized mining face according to claim 1, characterized in that, Also includes: Base (1); The base (1) has four lifting cylinders (2) at the top corners. A horizontally set base plate (3) is fixedly connected to the top of the cylinder (2). The water tank (4) is fixedly installed on the upper surface of the base plate (3).

5. A dust suppression spraying device for a hydraulic support in a fully mechanized mining face according to claim 1, characterized in that, The water tank (4) is fixedly installed with an inlet pipe (5), which passes through the water tank (4) and communicates with the inside of the water tank (4). The inlet pipe (5) is located between the sliding seat (6) and the filter box (22).

6. A dust suppression spraying device for a hydraulic support in a fully mechanized mining face according to claim 2, characterized in that, The screw (9) is fixed at both ends to the groove wall of the slide (7) by bearing seats, and the sliding stroke of the U-shaped slider (10) covers the entire effective length of the slide (7).

7. A dust suppression spraying device for a hydraulic support in a fully mechanized mining face according to claim 4, characterized in that, The water supply pipe (21) is a flexible hose. One end of the water supply pipe (21) is fixedly connected to the output end of the water pump (20), and the other end is fixedly connected to the inlet of the water passage box (18).

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