Automatic spray dust-settling device for mine transport vehicle

Abstract

The application relates to an automatic spray dust-settling device for a mine transport vehicle and belongs to the technical field of automatic spray dust-settling devices. The device comprises a plurality of linearly arranged assembly units, the assembly unit comprises a mounting seat and an assembly dust-settling pipe hingedly connected to the lower end of the mounting seat, the mounting seat is fixedly installed on the upper end of a side baffle of a vehicle compartment of the transport vehicle, the mounting seats of two adjacent assembly units are connected through a connecting pipe, the connecting pipe is connected with the inside of the assembly dust-settling pipe, a row of spray dust-settling nozzles is arranged on the assembly dust-settling pipe, the assembly dust-settling pipe is hingedly connected with the mounting seat through an angle adjusting assembly, the angle adjusting assembly adjusts the angle of the assembly dust-settling pipe through the water pressure in the connecting pipe, and a movable float is slidably arranged in the assembly dust-settling pipe; a cloth roll roller is arranged between the lower ends of the assembly dust-settling pipes of two adjacent assembly units; the problems of unstable pressure, limited spray range and incomplete dust control of the existing mine transport vehicle spray dust-settling device are solved.

Description

Technical Field

[0001] This invention belongs to the technical field of automatic spray dust suppression equipment, specifically relating to an automatic spray dust suppression device for mining transport vehicles. Background Technology

[0002] In mining and transportation operations, mining vehicles generate a large amount of dust when loading and transporting materials such as ore and coal gangue due to material collisions and wind action. This not only pollutes the surrounding atmospheric environment but also harms the respiratory health of workers. In addition, dust adhering to the surface of vehicle parts accelerates equipment wear and increases maintenance costs.

[0003] The existing equipment suffers from severe deficiencies in spray angle adjustment and adaptability. Specifically, most dust suppression spraying devices employ fixed nozzles and rigid piping structures, with the nozzle angles fixed at the factory. This limits coverage to a small area at the top of the truck bed, making it unsuitable for varying truck bed heights and material loading heights across different specifications of mining transport vehicles. When the truck bed is loaded with a high amount of material, the fixed-angle nozzles cannot cover the dust rising from the top. When the material load is low, the spray liquid easily splashes directly onto the bottom of the truck bed, wasting water resources. Some adjustable-angle devices require manual adjustment, which cannot adapt to the dust diffusion direction in real time during mining transportation, and manual adjustment requires machine shutdown, severely impacting transportation efficiency. Furthermore, the equipment piping is mostly a monolithic design, preventing the flexible addition or removal of spraying units based on truck bed length, resulting in poor adaptability to mining transport vehicles with different wheelbases and further limiting the spray coverage. Therefore, this application designs an automatic dust suppression spraying device for mining transport vehicles to solve the above problems. Summary of the Invention

[0004] This invention overcomes the shortcomings of the prior art and proposes an automatic spray dust suppression device for mining transport vehicles; it solves the problems of unstable pressure, limited spray range, and incomplete dust control in existing spray dust suppression devices for mining transport vehicles.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution.

[0006] An automatic dust suppression spraying device for mining transport vehicles includes multiple linearly arranged assembly units. Each assembly unit includes a mounting base and an assembly dust suppression pipe hinged to the lower end of the mounting base. The mounting base is fixedly installed on the upper end of the side panel of the transport vehicle. The mounting bases of two adjacent assembly units are connected by a connecting pipe, which communicates with the interior of the assembly dust suppression pipe. A row of dust suppression spray nozzles is provided on the assembly dust suppression pipe. The assembly dust suppression pipe is hinged to the mounting base by an angle adjustment component. The angle adjustment component adjusts the angle of the assembly dust suppression pipe by the water pressure inside the connecting pipe. A movable float is slidably installed inside the assembly dust suppression pipe. A cloth roll roller is provided between the lower ends of the assembly dust suppression pipes of two adjacent assembly units.

[0007] Furthermore, the mounting base is snapped and fixed to the upper end of the side panel of the carriage; a first sliding groove with an opening facing downward is provided on one side wall of the mounting base, a sliding clamp is slidably arranged inside the first sliding groove, a sliding strip groove is provided on the side wall of the first sliding groove, a clamping bolt is slidably arranged inside the sliding strip groove, one end of the clamping bolt is screwed to the sliding clamp, and a clamping nut is screwed to the other end of the clamping bolt.

[0008] Furthermore, a clamping seat is fixedly installed at the lower end of the sliding clamp, and a second sliding groove is provided on the side of the clamping seat near the side baffle of the carriage. An adjusting rubber block is slidably installed inside the second sliding groove, and a clamping pad is fixedly installed at one end of the outer side of the adjusting rubber block. Multiple anti-slip ridges are fixedly installed on the side of the clamping pad near the side baffle of the carriage. An adjusting bolt is screwed onto the side wall of the second sliding groove away from the adjusting rubber block, and one end of the adjusting bolt is rotatably connected to the adjusting rubber block.

[0009] Furthermore, the angle adjustment assembly includes a hinged support frame and a fluid guiding pipe; two symmetrical hinged support frames are fixedly installed on the upper end face of the mounting base near the interior edge of the carriage, and a fluid guiding pipe is fixedly installed on the side of the two hinged support frames that are far apart from each other, and the fluid guiding pipe is fixedly connected to the connecting pipe on the same side by a clamp.

[0010] Furthermore, the angle adjustment assembly also includes a fixed infusion shaft tube, a rotating adjustment sleeve, and a movable sealing protrusion; a fixed infusion shaft tube is fixedly installed between the two hinged support frames, and an arc-shaped mating guide groove is provided on the outer wall of the fixed infusion shaft tube; a rotating adjustment sleeve is rotatably sleeved on the outside of the fixed infusion shaft tube, and the upper end of the assembled dust-suppressing tube is fixedly connected to the rotating adjustment sleeve; a movable sealing protrusion is fixedly installed on the inner wall of the rotating adjustment sleeve, and the movable sealing protrusion is slidably installed inside the mating guide groove; a transmission groove is provided on the inner wall of the rotating adjustment sleeve, and the transmission groove is in communication with the liquid guiding pipe and the interior of the assembled dust-suppressing tube, while one end of the transmission groove is internally connected to the mating guide groove.

[0011] Furthermore, the assembled dust suppression pipe is composed of multiple dust suppression pipe units spliced ​​together sequentially. The uppermost dust suppression pipe unit is fixedly connected to the rotating adjustment sleeve at its upper end. A threaded connector is fixedly installed at the lower end of each dust suppression pipe unit, and a support limiting ring is fixedly installed on the outer side of the upper end of the threaded connector. Excluding the uppermost dust suppression pipe unit, each remaining dust suppression pipe unit has an internal threaded interface at its upper end. A movable sleeve is installed on the outer side of the support limiting ring at the lower end of each dust suppression pipe unit, and a threaded sleeve is fixedly installed inside the movable sleeve. A support spring is fixedly installed at the upper end of the threaded sleeve. The threaded sleeve is screwed to the threaded connector, and the upper end of the support spring abuts against the lower end face of the support limiting ring. After passing through the threaded sleeve, the threaded connector is screwed to the internal threaded interface at the upper end of the lower dust suppression pipe unit, thereby fixing the upper and lower dust suppression pipe units together.

[0012] Furthermore, a hinged cover plate is rotatably installed at the lower opening of the movable sleeve on the outer side of the lower end of the bottom dust collection pipe unit.

[0013] Furthermore, the movable pontoon is a cylindrical structure with openings at both ends. Two annular support plates are fixedly installed in the middle of the outer side of the movable pontoon. An annular end is fixedly installed at each end of the outer side of the movable pontoon. Each end and each support plate is provided with a through groove. A counterweight is fixedly installed at one end, and an inflatable float is fixedly installed at the other end. An inflation connector is provided on the inflatable float.

[0014] Furthermore, multiple filter frame plates are fixedly installed inside the movable float, and each filter frame plate is provided with multiple filter holes, wherein the diameter of the filter holes on the filter frame plates on both sides is larger than the diameter of the filter holes on the filter frame plate in the middle.

[0015] Furthermore, a mounting frame is fixedly installed at the lower end of each assembled dust suppression pipe, and the cloth roll roller is rotatably positioned between two adjacent mounting frames. The cloth exit end on the cloth roll roller is fixedly installed on the outer side wall of the transport vehicle, and the other end of the cloth is fixed on the cloth roll roller.

[0016] The beneficial effects of this invention compared to the prior art are as follows:

[0017] 1. This invention, through the coordinated operation of the assembled dust suppression pipe and the angle adjustment component, and the sliding fit between the guide groove of the fixed infusion shaft and the movable sealing protrusion of the rotating adjustment sleeve, can drive the assembled dust suppression pipe to adjust the spray angle, precisely adapting to the dust suppression needs of different heights and dust diffusion ranges, such as the top and sides of the vehicle body; simultaneously, the cloth roll rollers between the assembled dust suppression pipes automatically tighten and untie via torsion springs, and the cloth forms a lateral shielding barrier, which can reduce the outward diffusion of dust during mining transportation and prevent spray liquid from splashing and polluting the road surface or damaging vehicle components, facilitating all-round dust suppression. It suppresses dust dispersion, thus achieving a combined dust suppression function with adjustable angle and prevention of diffusion and splashing. Furthermore, the movable float filtration system built into the dust suppression pipe is used. The counterweights at both ends of the movable float and the inflatable float ring adjust the buoyancy balance to ensure smooth sliding inside the assembled dust suppression pipe. Its internal two-way filtration structure achieves graded filtration, first intercepting large particles of impurities and then filtering fine dust. In conjunction with the support plate and the connecting groove at the end, it ensures smooth liquid flow, effectively preventing the spray dust suppression nozzles from clogging, extending the continuous operation time of the equipment, and thus improving the stability and sustainability of dust suppression operations.

[0018] 2. This invention utilizes a movable float filtration system in conjunction with a movable sleeve and hinged cover for protection. The movable float's tiered filtration function continuously purifies the spray liquid, preventing impurities from accumulating and affecting the liquid flow within the pipe. The movable sleeve and hinged cover are sealed by rubber protrusions and stepped grooves, preventing mine dust and gravel from entering the assembled dust suppression pipe when idle, thus preventing clogging of the filtration system or damage to threaded joints and ensuring long-term reliable use of the equipment. Furthermore, the sliding clamp and pressure pad of the mounting base are matched and fitted. The sliding clamp slides along the sliding groove to adapt to side panels of different thicknesses in the carriage. The anti-slip protrusions of the pressure pad and the adjusting rubber block are finely adjusted for fit using adjusting bolts, ensuring a firm fixation even on uneven surfaces of the carriage side panels. Combined with the arc-shaped abutment groove of the anti-collision pad, vibration and impact are buffered, preventing the equipment from loosening and shifting under bumpy mine road conditions, thus improving overall installation stability. Ultimately, this invention solves the problems of unstable pressure, limited spray range, and incomplete dust control in existing mine transport vehicle spray dust suppression equipment. Attached Figure Description

[0019] The present invention will now be described in further detail with reference to the accompanying drawings:

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a structural diagram of the assembly unit. Figure 1 ;

[0022] Figure 3 This is a structural diagram of the assembly unit. Figure 2 ;

[0023] Figure 4 This is a structural diagram of the assembly unit. Figure 3 ;

[0024] Figure 5 This is a schematic diagram of the assembly of the dust collection pipe;

[0025] Figure 6 This is a schematic diagram showing the connection between the mounting base and the sliding clamp, the clamping base, and the clamping pad. Figure 1 ;

[0026] Figure 7 This is a schematic diagram showing the connection between the mounting base and the sliding clamp, the clamping base, and the clamping pad. Figure 2 ;

[0027] Figure 8 This is a schematic diagram of the connection between the threaded joint and the support limiting retaining ring;

[0028] Figure 9 This is a schematic diagram showing the connection between the movable sleeve and the threaded sleeve, support spring, and hinged cover plate;

[0029] Figure 10 This is a schematic diagram showing the connection between the hinged support frame, the fixed infusion shaft tube, the rotating adjustment sleeve, and the movable sealing protrusion.

[0030] Figure 11 This is a schematic diagram showing the positions of the guide groove and the transmission groove on the fixed infusion shaft tube;

[0031] Figure 12 This is a schematic diagram of the movable pontoon structure. Figure 1 ;

[0032] Figure 13 This is a schematic diagram of the movable pontoon structure. Figure 2 ;

[0033] Among them, 1 is the mounting base, 2 is the connecting pipe, 3 is the assembled dust suppression pipe, 4 is the mounting frame, 5 is the cloth roll roller, 6 is the sliding clamp, 7 is the sliding strip groove, 8 is the hinge support frame, 9 is the anti-collision pad, 10 is the clamping pad, 12 is the liquid guiding pipe, 13 is the spray dust suppression nozzle, 14 is the movable float, 15 is the threaded joint, 16 is the support limit ring, 17 is the movable sleeve, 18 is the hinge cover plate, 19 is the anti-slip convex strip, 20 is the adjusting rubber block, 21 is the adjusting bolt, 22 is the support spring, 23 is the threaded sleeve, 24 is the fixed infusion shaft tube, 25 is the rotating adjusting sleeve, 26 is the movable sealing convex block, 27 is the mating guide groove, 28 is the transmission groove, 29 is the support plate, 30 is the end, 31 is the inflatable float ring, 32 is the inflatable joint, 33 is the filter frame plate, and 34 is the connecting groove. Detailed Implementation

[0034] To make the technical problems to be solved, the technical solutions, and the beneficial effects of this invention clearer, the invention will be further described in detail with reference to the embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The technical solutions of this invention are described in detail below with reference to the embodiments and accompanying drawings, but the scope of protection is not limited thereto.

[0035] like Figure 1 As shown in Figure 13, the present invention provides an automatic spray dust suppression device for a mining transport vehicle, comprising multiple linearly arranged assembly units. Each assembly unit includes a mounting base 1 and an assembly dust suppression pipe 3 hinged to the lower end of the mounting base 1. The mounting base 1 is fixedly installed on the upper end of the side baffle of the transport vehicle. The mounting bases 1 of two adjacent assembly units are connected by a connecting pipe 2, which is in communication with the interior of the assembly dust suppression pipe 3. A row of spray dust suppression nozzles 13 is provided on the assembly dust suppression pipe 3. The assembly dust suppression pipe 3 is hinged to the mounting base 1 by an angle adjustment component. The angle adjustment component adjusts the angle of the assembly dust suppression pipe 3 by the water pressure inside the connecting pipe 2. A movable float 14 is slidably arranged inside the assembly dust suppression pipe 3. A cloth roll roller 5 is provided between the lower ends of the assembly dust suppression pipes 3 of two adjacent assembly units.

[0036] A check valve is installed at the liquid inlet of each assembly unit to prevent the spray liquid from flowing back and contaminating the water source or damaging the pump. The 13 dust suppression spray nozzles are evenly distributed to achieve uniform dust suppression above the vehicle compartment.

[0037] The mounting base 1 is a U-shaped plate structure with an opening facing downwards, and it is snapped and fixed to the upper end of the side panel of the carriage. A first sliding groove with an opening facing downwards is provided on one side wall of the mounting base 1. A sliding clamp 6 is slidably installed vertically inside the first sliding groove, with its lower end extending to the outside of the first sliding groove. Two sliding slots 7 are provided on the side wall of the first sliding groove, with their length direction along the vertical direction. A clamping bolt is slidably installed inside each sliding slot 7. The inner end of each clamping bolt is screwed to the sliding clamp 6, and the outer end of each clamping bolt is screwed to a clamping nut. When the two clamping nuts are loosened, the sliding clamp 6 can slide inside the first sliding groove, thereby adjusting the height of the sliding clamp 6; when the two clamping nuts are tightened, the clamping nuts are in close contact with the mounting base 1, thereby fixing the sliding clamp 6, and its height can no longer be adjusted. By adjusting the height of the sliding clamp 6, it can adapt to the convex and concave structure of the side baffles of the carriage with different thicknesses, so as to achieve a firm fixation of the mounting seat 1 and prevent the equipment from loosening under the bumpy road conditions in the mine.

[0038] A crash pad 9 is fixedly installed on the lower end of the side face of the mounting base 1 near the interior of the carriage. The crash pad 9 has an arc-shaped abutment groove that mates with the assembled dust-suppressing pipe 3. The arc-shaped abutment groove of the crash pad 9 can buffer the impact force when the assembled dust-suppressing pipe 3 is hinged and rotated, and limit its sway amplitude, so as to ensure the structural stability of the assembled dust-suppressing pipe 3 and extend the service life of the equipment.

[0039] A clamping seat is fixedly installed at the lower end of the sliding clamping plate 6. A second sliding groove is provided on the side of the clamping seat near the side panel of the vehicle body. An adjusting rubber block 20 is slidably installed inside the second sliding groove. A clamping pad 10 is fixedly installed at one outer end of the adjusting rubber block 20, and the clamping pad 10 abuts against the side panel of the vehicle body. Multiple anti-slip ridges 19 distributed in different directions are fixedly installed on the side of the clamping pad 10 near the side panel of the vehicle body. The anti-slip ridges 19 increase the friction between the clamping pad 10 and the side panel of the vehicle body, further preventing the mounting seat 1 from shifting. An adjusting bolt 21 is screwed onto the side wall of the second sliding groove away from the adjusting rubber block 20. One inner end of the adjusting bolt 21 is rotatably connected to the adjusting rubber block 20. By rotating the adjusting bolt 21, the position of the adjusting bolt 21 on the clamping seat can be controlled, thereby driving the adjusting rubber block 20 to slide inside the second sliding groove, finely adjusting the position and fit of the clamping pad 10. Even if the surface of the side panel of the carriage is uneven, a tight fit can be achieved, and the shock resistance and compatibility of the anti-collision pad 9 can be improved.

[0040] The angle adjustment assembly includes a hinged support frame 8, a fluid guiding pipe 12, a fixed infusion shaft pipe 24, a rotating adjustment sleeve 25, and a movable sealing protrusion 26.

[0041] Two symmetrical hinged support frames 8 are fixedly installed on the upper end face of the mounting base 1 near the edge of the carriage. A liquid guiding pipe 12 is fixedly installed on the side of the two hinged support frames 8 that is far away from each other. The liquid guiding pipe 12 is fixedly connected to the connecting pipe 2 on the same side by a clamp.

[0042] A fixed infusion shaft tube 24 is fixedly installed between two hinged support frames 8. An arc-shaped guide groove 27 is provided on the outer wall of the fixed infusion shaft tube 24. A rotating adjustment sleeve 25 is rotatably sleeved on the outside of the fixed infusion shaft tube 24. The upper end of the assembled dust-suppressing tube 3 is fixedly connected to the rotating adjustment sleeve 25, and the rotating adjustment sleeve 25 drives the assembled dust-suppressing tube 3 to rotate synchronously. A movable sealing protrusion 26 is fixedly installed on the inner wall of the rotating adjustment sleeve 25. The movable sealing protrusion 26 is slidably disposed inside the guide groove 27, and the movable sealing protrusion 26 and the guide groove 27 are slidably sealed relative to each other. Abutment sealing gaskets for rotating sealing with the movable sealing protrusion 26 are installed at both ends of the fixed infusion shaft tube 24. A transmission groove 28 is provided on the inner wall of the rotating adjustment sleeve 25. The transmission groove 28 is connected to the inside of the infusion guide tube 12 and the assembled dust-suppressing tube 3, and one end of the transmission groove 28 is connected to the inside of the guide groove 27. The high-pressure water flow inside the connecting pipe 2 enters the mating guide groove 27 through the liquid guiding pipe 12 and the transmission groove 28, thereby pressurizing the movable sealing protrusion 26 and driving the movable sealing protrusion 26 to slide inside the mating guide groove 27; through the sliding of the movable sealing protrusion 26 in the mating guide groove 27, the rotating adjusting sleeve 25 can be driven to adjust the spray angle of the assembled dust-falling pipe 3, realizing a motorless automatic angle adjustment function with good shock resistance and high liquid pressure utilization.

[0043] The assembled dust suppression pipe 3 is composed of multiple dust suppression pipe units spliced ​​together sequentially. The uppermost dust suppression pipe unit is fixedly connected to the rotating adjusting sleeve 25 at its upper end. A threaded connector 15 is fixedly installed at the lower end of each dust suppression pipe unit, and a support limiting ring 16 is fixedly installed on the outer side of the upper end of the threaded connector 15. Except for the uppermost dust suppression pipe unit, each of the remaining dust suppression pipe units has an internal threaded interface at its upper end. A movable sleeve 17 is installed on the outer side of the support limiting ring 16 at the lower end of each dust suppression pipe unit. The support limiting ring 16 restricts the sliding range of the movable sleeve 17 to prevent it from falling off. A threaded sleeve 23 is fixedly installed inside the movable sleeve 17, and a support spring 22 is fixedly installed on the upper end of the threaded sleeve 23. The threaded sleeve 23 is screwed to the threaded connector 15, and the upper end of the support spring 22 abuts against the lower end face of the support limiting ring 16. The threaded connector 15 passes through the threaded sleeve 23 and is screwed into the internal thread interface at the upper end of the lower dust suppression pipe unit, thereby fixing the upper and lower dust suppression pipe units together. The support spring 22 provides elastic support for the movable sleeve 17, ensuring a tight seal at the threaded connection during docking, preventing leakage of spray liquid due to loosening of the connection between adjacent dust suppression pipe units caused by vibration, and also buffering the impact of transportation bumps on the interface. A hinged cover plate 18 is rotatably installed at the lower opening of the movable sleeve 17 on the outer side of the lower end of the bottom dust suppression pipe unit. The lower opening of the movable sleeve 17 has a stepped groove structure, and a rubber protrusion adapted to the stepped groove structure is fixedly installed on the hinged cover plate 18. When not in use, the hinged cover plate 18 can tightly seal the lower end of the assembled dust suppression pipe 3 through the cooperation of the rubber protrusion and the stepped groove structure, preventing mine dust and gravel from entering the pipe and clogging the assembled dust suppression pipe 3 or damaging the threaded connector 15, ensuring smooth operation of the equipment in the next use.

[0044] The movable float 14 is a cylindrical structure open at both ends. Two annular support plates 29 are fixedly installed in the middle of the outer side of the movable float 14. An annular end 30 is fixedly installed at each end of the outer side of the movable float 14. Each support plate 29 and each end 30 is provided with a through groove 34. A counterweight is fixedly installed on one end 30, and an inflatable float ring 31 is fixedly installed on the other end 30. The inflatable float ring 31 is provided with an inflation connector 32, which is connected to an external inflation device. The inflation device inflates the inflatable float ring 31 through the inflation connector 32. The air volume of the inflatable float ring 31 can be adjusted by the air inflator 32. Combined with the counterweight, the buoyancy and position of the movable float 14 within the assembled dust suppression pipe 3 can be controlled to adapt to different liquid levels, preventing the movable float 14 from being permanently tilted to one side and thus failing to perform its dynamic blocking and filtering functions. The support plate 29 ensures the smooth sliding of the movable float 14, and the connecting groove 34 ensures normal liquid flow within the assembled dust suppression pipe 3. Simultaneously, it can preliminarily filter large particulate impurities in the liquid, reducing the risk of nozzle clogging. Multiple filter frame plates 33 are fixedly installed inside the movable float 14. Each filter frame plate 33 has multiple filter holes, with the diameter of the filter holes on the side filter frame plates 33 being larger than that on the central filter frame plate 33. The bidirectional filtration structure design enables the assembled dust suppression pipe 3 to achieve dynamic blocking filtration in both retracted and extended states. It can also dynamically change the filtration position towards both ends in both states to adapt to changes in gravity direction under different working conditions. The filter holes, which are large at both ends and small in the middle, can achieve graded filtration, first intercepting large particles of impurities and then filtering fine impurities, effectively purifying the spray liquid and preventing the dust suppression nozzles 13 from clogging. By utilizing the relationship between weight and resistance changes caused by clogging, the buoyancy of the movable float 14 decreases due to the increase in clogging impurities, thus interacting with the liquid flow inside the pipe to achieve continuous undulation and impact with each other by the vibration generated by the transport vehicle.

[0045] A mounting frame 4 is fixedly installed at the lower end of each assembled dust suppression pipe 3. The fabric roll 5 is rotatably positioned between two adjacent mounting frames 4. The fabric exit end of the fabric roll 5 is fixedly installed on the outer side wall of the transport vehicle, and the other end of the fabric is fixed to the fabric roll 5. The fabric roll 5 is a conventional torsion spring controlled tightening roller. The mounting frame 4 provides stable support for the fabric roll 5, preventing displacement of the fabric roll 5 due to transport bumps. The torsion spring controlled automatic tightening structure can automatically unfold the fabric when the transport vehicle is moving or spraying, blocking dust raised from the side of the vehicle, reducing the dust diffusion range, and preventing spray liquid from splashing outwards, thus achieving the functions of dust suppression and anti-splashing, and improving the dust control effect.

[0046] This invention also proposes a method for using an automatic spray dust suppression device for mining transport vehicles, comprising the following steps:

[0047] Step one: First, connect an external water tank with a booster pump to the device. The external water tank is used to store the clean water or the mixture containing dust suppressant needed for spraying. Its volume can be flexibly configured according to the working time and dust suppression requirements of the mine transport vehicle. The booster pump is a high-pressure plunger pump or a centrifugal high-pressure pump. Its function is to pressurize the low-pressure water output from the water tank to the working pressure required by the equipment. The pressurized high-pressure water is then transported to the assembly dust suppression pipes 3 of each assembly unit through the liquid guide pipe 12 and the connecting pipe 2. The liquid guide pipe 12 and the connecting pipe 2 are locked together with clamps. This connection method ensures that the pipeline connection is firm and reliable, and can withstand the vibration and bumps during mine transportation. The assembly dust suppression pipes 3 are quickly connected through threaded joints 15 and threaded sleeves 23. The threaded sleeves 23 are tightly fitted to the threaded joints 15 under the action of the support springs 22 to ensure sealing performance, and at the same time provide a certain buffer during transportation bumps to reduce the risk of loosening of the interface.

[0048] Step two: Inside the assembled dust suppression pipe 3, a movable float 14 is installed, with counterweights and inflatable float rings 31 installed at both ends. The buoyancy and balance position of the float can be controlled by adjusting the air volume of the float rings through the air inflator 32. A support plate 29 is provided on the outer wall of the middle part of the movable float 14 to ensure that the movable float 14 slides smoothly inside the assembled dust suppression pipe 3. The connecting groove 34 opened on the end 30 and the support plate 29 ensures liquid flow and performs preliminary filtration of large particles. The filter frame plate 33 installed inside the movable float 14 adopts a two-way filtration structure with a filter hole diameter that is large at both ends and small in the middle, which can achieve graded filtration, effectively intercept impurities of different particle sizes, and prevent the spray dust suppression nozzles 13 from clogging. During the operation of the equipment, the movable float 14 will float up and down due to changes in water pressure, liquid level, and vibration of the transport vehicle, constantly changing the filtration position, improving filtration efficiency, and reducing the possibility of impurities depositing locally.

[0049] Step 3: The dust suppression pipe 3 is hinged to the upper end of the side baffle of the transport vehicle via the mounting base 1. High-pressure water enters the mating guide groove 27 through the transmission groove 28, pushing the movable sealing protrusion 26 to slide along the arc-shaped mating guide groove 27, thereby driving the rotating adjusting sleeve 25 to rotate the assembled dust suppression pipe 3 around the hinge point, realizing automatic adjustment of the spray angle. The spray dust suppression nozzles 13 are equidistantly installed on the assembled dust suppression pipe 3, using high-pressure atomizing nozzles to atomize the high-pressure water into fine droplets, which fully contact the dust particles in the air. This process wets, agglomerates, and settles the dust, effectively suppressing dust from flying. By adjusting the water pressure inside the connecting pipe 2, the pitch angle of the assembled dust suppression pipe 3 can be changed, allowing the spray coverage area to be adaptively adjusted according to the height of the carriage, the type of loaded material, and the dust concentration. In addition, the cloth roll roller 5 installed between the assembled dust suppression pipes 3 can automatically unfold the cloth under the action of a torsion spring, forming a barrier to block the dust raised from the side of the carriage, reduce the dust diffusion range, and prevent the spray liquid from splashing outwards, further improving the dust suppression effect.

[0050] Step four: The equipment is designed with full consideration of the harsh conditions of the mining environment and is equipped with multiple protective and safety devices; the sliding clamp 6 at the lower end of the mounting base 1 can slide along the sliding groove 7, and together with the clamping bolt and clamping pad 10, it can achieve a firm connection with the side baffles of the carriage of different thicknesses; the anti-slip protrusions 19 and the adjusting rubber block 20 on the clamping pad 10 can be finely adjusted by the adjusting bolt 21 to ensure a tight fit with the side baffle of the carriage and prevent the equipment from loosening during bumps; the anti-collision pad 9 on the side wall of the mounting base 1 is provided with an arc-shaped abutment groove, which can buffer the impact force when the dust pipe 3 is rotated during assembly, limit the shaking amplitude, and extend the service life of the equipment;

[0051] Step 5: The support limit ring 16 restricts the sliding range of the movable sleeve 17 to prevent it from falling off; when idle, the hinged cover plate 18 tightly seals the pipe end through the rubber protrusion and the stepped groove to prevent dust and gravel from entering and clogging the nozzle or damaging the threaded joint 15; when the system pressure is abnormal, the external booster pump adopts an automatic pressure relief protection pipeline design with a safety valve; the check valve prevents the spray liquid from flowing back and contaminating the water source; the filtration system ensures the cleanliness of the spray liquid and reduces equipment wear and malfunctions.

[0052] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An automatic spray dust suppression device for mining transport vehicles, characterized in that: The assembly includes multiple linearly arranged assembly units, each assembly unit including a mounting base (1) and an assembly dust suppression pipe (3) hinged to the lower end of the mounting base (1). The mounting base (1) is fixedly installed on the upper end of the side panel of the transport vehicle. The mounting bases (1) of two adjacent assembly units are connected by a connecting pipe (2). The connecting pipe (2) is connected to the interior of the assembly dust suppression pipe (3). A row of spray dust suppression nozzles (13) is provided on the assembly dust suppression pipe (3). The assembly dust suppression pipe (3) is hinged to the mounting base (1) by an angle adjustment component. The angle adjustment component adjusts the angle of the assembly dust suppression pipe (3) by the water pressure inside the connecting pipe (2). A movable float (14) is slidably provided inside the assembly dust suppression pipe (3). A cloth roll roller (5) is provided between the lower ends of the assembly dust suppression pipes (3) of two adjacent assembly units. The mounting base (1) is snapped and fixed to the upper end of the side panel of the carriage; a first sliding groove with an opening facing downward is provided on one side wall of the mounting base (1), a sliding clamp (6) is slidably provided inside the first sliding groove, a sliding strip groove (7) is provided on the side wall of the first sliding groove, a clamping bolt is slidably provided inside the sliding strip groove (7), one end of the clamping bolt is screwed to the sliding clamp (6), and one end of the clamping bolt is screwed to the clamping nut; The angle adjustment assembly includes a hinged support frame (8) and a liquid guiding pipe (12); two symmetrical hinged support frames (8) are fixedly installed on the upper end face of the mounting base (1) near the inside of the carriage, and a liquid guiding pipe (12) is fixedly installed on the side of the two hinged support frames (8) that are far apart from each other. The liquid guiding pipe (12) is fixedly connected to the connecting pipe (2) on the same side by a clamp. The angle adjustment assembly also includes a fixed infusion shaft tube (24), a rotating adjustment sleeve (25), and a movable sealing protrusion (26). A fixed infusion shaft tube (24) is fixedly installed between two hinged support frames (8), and an arc-shaped mating guide groove (27) is provided on the outer wall of the fixed infusion shaft tube (24). A rotating adjustment sleeve (25) is rotatably sleeved on the outside of the fixed infusion shaft tube (24), and the upper end of the assembled dust-reducing pipe (3) is fixedly connected to the rotating adjustment sleeve (25). A movable sealing protrusion (26) is fixedly installed on the inner wall of the rotating adjustment sleeve (25), and the movable sealing protrusion (26) is slidably installed inside the mating guide groove (27). A transmission groove (28) is provided on the inner wall of the rotating adjustment sleeve (25), and the transmission groove (28) is connected to the liquid guiding pipe (12) and the interior of the assembled dust-reducing pipe (3). At the same time, the transmission groove (28) is connected to one end of the mating guide groove (27).

2. The automatic spray dust suppression device for mining transport vehicles according to claim 1, characterized in that: A pressing seat is fixedly installed at the lower end of the sliding clamp (6). A second sliding groove is provided on the side of the pressing seat near the side baffle of the carriage. An adjusting rubber block (20) is slidably installed inside the second sliding groove. A pressing pad (10) is fixedly installed at one end of the outer side of the adjusting rubber block (20). Multiple anti-slip ridges (19) are fixedly installed on the side of the pressing pad (10) near the side baffle of the carriage. An adjusting bolt (21) is screwed onto the side wall of the second sliding groove away from the adjusting rubber block (20). One end of the adjusting bolt (21) is rotatably connected to the adjusting rubber block (20).

3. The automatic spray dust suppression device for mining transport vehicles according to claim 1, characterized in that: The assembled dust suppression pipe (3) is composed of multiple dust suppression pipe units spliced ​​together sequentially. The uppermost dust suppression pipe unit is fixedly connected to the rotating adjustment sleeve (25) at its upper end. A threaded connector (15) is fixedly installed at the lower end of each dust suppression pipe unit, and a support limiting ring (16) is fixedly installed on the outer side of the upper end of the threaded connector (15). Except for the uppermost dust suppression pipe unit, each remaining dust suppression pipe unit has an internal threaded interface at its upper end. The support limiting ring (16) at the lower end of each dust suppression pipe unit is fixedly installed on the outer side of the threaded connector (15). Each side is provided with a movable sleeve (17), and a threaded sleeve (23) is fixedly installed inside the movable sleeve (17). A support spring (22) is fixedly installed at the upper end of the threaded sleeve (23). The threaded sleeve (23) is screwed to the threaded connector (15), and the upper end of the support spring (22) abuts against the lower end face of the support limiting ring (16). After the threaded connector (15) passes through the threaded sleeve (23), it is screwed to the internal thread interface at the upper end of the lower dust collection pipe unit, thereby fixing the upper and lower dust collection pipe units together.

4. An automatic spray dust suppression device for mining transport vehicles according to claim 3, characterized in that: A hinged cover plate (18) is rotatably installed at the lower opening of the movable sleeve (17) on the outer side of the lower end of the bottom dust collection pipe unit.

5. An automatic dust suppression spraying device for mining transport vehicles according to claim 1, characterized in that: The movable pontoon (14) is a cylindrical structure with openings at both ends. Two annular support plates (29) are fixedly installed in the middle of the outer side of the movable pontoon (14). An annular end (30) is fixedly installed at each end of the outer side of the movable pontoon (14). A connecting groove (34) with both ends passing through is provided on each end (30) and each support plate (29). A counterweight is fixedly installed on one end (30), and an inflatable float (31) is fixedly installed on the other end (30). An inflation connector (32) is provided on the inflatable float (31).

6. An automatic spray dust suppression device for mining transport vehicles according to claim 5, characterized in that: Multiple filter frames (33) are fixedly installed inside the movable float (14). Each filter frame (33) has multiple filter holes. The diameter of the filter holes on the filter frames (33) on both sides is larger than the diameter of the filter holes on the filter frame (33) in the middle.

7. An automatic spray dust suppression device for mining transport vehicles according to claim 1, characterized in that: A mounting frame (4) is fixedly installed at the lower end of each assembled dust collection pipe (3). The cloth roll roller (5) is rotatably installed between two adjacent mounting frames (4). The cloth exit end on the cloth roll roller (5) is fixedly installed on the outer side wall of the transport vehicle, and the other end of the cloth is fixed on the cloth roll roller (5).

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