A spray dust-settling device for mine cars
Patent Information
- Application Number
- CN202522508304.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-26
- Publication Date
- 2026-10-20
- Estimated Expiration
- 2035-11-26
AI Technical Summary
[0004]目前这种矿车的除尘方式，属于开放式喷雾，雾化水滴极易受到环境风的影响而飘散，导致大量水雾无法与粉尘有效接触，因此导致除尘效果不好
1.本实用新型一种用于矿车的喷雾降尘装置，通过可伸缩的防尘罩在卸料时形成一个半封闭空间，实现了对粉尘源的物理隔离与包裹，改变了传统开放式喷雾除尘的模式，极大地提高了粉尘捕获率，使除尘效果显著提升；
Smart Images
Figure CN224865148U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of dust suppression devices, specifically relating to a spray dust suppression device for mining trucks. Background Technology
[0002] In industrial sectors such as mining, building materials, and ports, mine cars are crucial equipment for transporting bulk materials (such as ore, slag, and sand). During unloading operations, the material falls rapidly from a height, generating significant amounts of dust through intense friction with the air and impact with the ground. This dust not only severely pollutes the surrounding atmosphere but also poses a significant threat to the health of on-site workers (e.g., causing occupational diseases like silicosis). Furthermore, it accelerates equipment wear, reduces visibility, and creates safety hazards. Therefore, effective dust suppression during mine car unloading is essential. Currently, spray dust suppression has become the most widely used method for dust control during mine car unloading due to its mature technology and relatively low cost.
[0003] Existing dust suppression spray devices for mining cars typically consist of several fixed nozzles installed on the edge of the mining car hopper or on a fixed bracket at the unloading point. When the mining car arrives at the unloading point and begins to lift the hopper, the water pump is activated through the control system, and these nozzles spray water mist into the inside of the hopper or the unloading area to moisten the material and capture dust, thereby suppressing dust dispersion.
[0004] The current dust removal method for this type of mining truck is an open spray system. The atomized water droplets are easily dispersed by the ambient wind, resulting in a large amount of water mist failing to effectively contact the dust, thus leading to poor dust removal performance. Utility Model Content
[0005] The technical problem to be solved by this utility model is to provide a spray dust suppression device for mining cars that addresses the shortcomings of the prior art. The device has a simple structure, reasonable design, and strong practicality.
[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a spray dust suppression device for mine cars, wherein the mine car includes a mine car body and a hopper, the hopper is hinged to the mine car body, and a hydraulic lifting unit is also provided between the mine car body and the hopper, which can lift and unload the hopper. The spray dust suppression device includes: A fixed frame is set along the width of the hopper, and the fixed frame is set on the hopper and on the side close to the cab; Two chutes are respectively set on the two outer sides of the hopper, and the chutes are set along the length of the hopper; A sliding frame is provided along the width direction of the hopper, with both ends of the sliding frame slidably connected to the chute, and the sliding frame can slide along the length direction of the hopper; The dust cover includes two side dust covers disposed between the sides of the fixed frame and the sliding frame, and a top dust cover disposed between the top of the fixed frame and the sliding frame.
[0007] Preferably, the sliding frame has a mounting groove on the side opposite to the fixed frame. The mounting groove includes vertical mounting grooves on both sides and a horizontal mounting groove between the tops of the two vertical mounting grooves. A roller is installed in both the vertical and horizontal mounting grooves. The roller is driven by a first motor installed in the vertical or horizontal mounting groove. One side of the side dustproof cloth and the top dustproof cloth are connected to the fixed frame, and the other side is connected to the corresponding roller. The first motor is connected to the control system.
[0008] Preferably, each of the slide grooves is rotatably provided with a screw, one end of which is driven by a second motor. A slider is threadedly connected to the screw, and the slider is also slidably connected to the inner wall of the slide groove. The two ends of the sliding frame are fixedly connected to the corresponding sliders. The hydraulic lifting unit and the second motor are both connected to the control system.
[0009] Preferably, the output shaft of the second motor is equipped with an encoder for detecting the number of rotations, and the encoder is connected to the controller system.
[0010] Preferably, a first retractable water pipe is provided between the fixed frame and the sliding frame. The first retractable water pipe includes a first fixed pipe, one end of which is fixedly connected to the fixed frame. A first telescopic pipe is slidably sleeved on the inner side of the end of the first fixed pipe away from the fixed frame. The end of the first telescopic pipe is fixedly connected to the sliding frame. Multiple first atomizing nozzles are provided along the axial direction of the first fixed pipe. A water tank is also integrally provided on one side of the hopper. A first water supply pipe is provided between the water tank and the fixed pipe. A water pump is connected in series on the first water supply pipe. The water pump is connected to the control system.
[0011] Preferably, a second retractable water pipe is also provided between the fixed frame and the sliding frame. The second retractable water pipe includes a second fixed pipe, one end of which is fixedly connected to the fixed frame. A second telescopic pipe is slidably sleeved on the outer side of the end of the second fixed pipe away from the fixed frame. The end of the second telescopic pipe is fixedly connected to the sliding frame. Multiple second atomizing nozzles are provided along the axial direction of the second telescopic pipe. A second water supply pipe is provided between the water tank and the second fixed pipe. A water pump is connected in series on the second water supply pipe and is connected to the control system.
[0012] Preferably, the bottom of the sliding frame is also provided with a transverse water pipe arranged along the width of the hopper. The two ends of the transverse water pipe are provided with mounting plates, and both mounting plates are fixedly connected to the sliding frame. The transverse water pipe is connected to the first telescopic pipe and the second telescopic pipe respectively. Multiple third atomizing nozzles are provided on the transverse water pipe, and the mist outlet of the third atomizing nozzles points to the tail of the hopper.
[0013] This utility model has the following advantages compared with the prior art: 1. This utility model discloses a spray dust suppression device for mining cars. The retractable dust cover forms a semi-enclosed space during unloading, which realizes the physical isolation and containment of dust sources. It changes the traditional open spray dust suppression mode, greatly improves the dust capture rate, and significantly enhances the dust suppression effect. 2. This utility model discloses a spray dust suppression device for mine cars. By integrating a roller driven by a first motor on a sliding frame, the automatic winding and unfolding of the side dustproof cloth and the top dustproof cloth are realized. When the sliding frame moves, the control system can instruct the first motor to rotate synchronously, so that the dustproof cloth automatically unfolds to form a sealed cover or automatically retracts after unloading. This design realizes the automated operation of the dustproof cover without manual intervention. Secondly, the winding design can neatly store the dustproof cloth when the dustproof cover is not unfolded, effectively avoiding the dustproof cloth being scratched, contaminated or tangled by the external environment when the mine car is in motion, loading or other non-working states, thereby significantly extending its service life. 3. This utility model provides a spray dust suppression device for mining cars. When the dust cover is fully extended, multiple atomizing nozzles installed in the first retractable water pipe, the second retractable water pipe, and the horizontal water pipe can spray the inside of the hopper and the tail of the hopper respectively, thereby achieving effective dust suppression during the unloading process.
[0014] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description
[0015] Figure 1 This is a perspective view of a spray dust suppression device for mining trucks according to the present invention; Figure 2 This is a schematic diagram of the installation of the rotating shaft on a spray dust suppression device for a mining car according to the present invention. Figure 3 for Figure 1 Enlarged structural diagram at point A in the middle; Figure 4 for Figure 1 Enlarged structural diagram at point B; Figure 5 for Figure 1 Enlarged structural diagram at point C; Figure 6 This is a perspective view of another side of a spray dust suppression device for mining cars according to the present invention; Figure 7 This is a rear perspective view of a spray dust suppression device for mining trucks according to the present invention.
[0016] Explanation of reference numerals in the attached figures: 1. Mine car body; 2. Hopper; 3. Hydraulic lifting unit; 4. Fixed frame; 5. Sliding frame; 6. Dust cover; 6-1. Side dustproof cloth; 6-2. Top dustproof cloth; 7. Screw; 8. Second motor; 9. Slider; 10. First telescopic water pipe; 10-1. First fixed pipe; 10-2. First telescopic pipe; 11. Water tank; 12. First water supply pipe; 13. First atomizing nozzle; 14. Second telescopic water pipe; 14-1. Second fixed pipe; 14-2. Second telescopic pipe; 15. Second atomizing nozzle; 16. Second water supply pipe; 17. Mounting plate; 18. Horizontal water pipe; 19. Third atomizing nozzle; 20. Slide groove; 21. Mounting groove; 22. Reel; 23. First motor. Detailed Implementation
[0017] like Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, this utility model discloses a spray dust suppression device for a mining car. The mining car includes a mining car body 1 and a hopper 2. The hopper 2 is hinged to the mining car body 1. A hydraulic lifting unit 3 is also provided between the mining car body 1 and the hopper 2. The hydraulic lifting unit 3 can lift and unload the hopper. The spray dust suppression device includes a fixed frame 4, a chute 20, a sliding frame 5, and a dust cover. The fixed frame 4 is arranged along the width direction of the hopper 2 and is located on the side of the hopper 2 closest to the driver's cab. Two chute 20s are respectively arranged on the two outer sides of the hopper 2 and are arranged along the length direction of the hopper 2. The sliding frame 5 is arranged along the width direction of the hopper 2, and its two ends are slidably connected to the chute 20. The sliding frame 5 can slide along the length direction of the hopper 2. The dust cover 6 includes two side dustproof cloths 6-1 arranged between the sides of the fixed frame 4 and the sliding frame 5, and a top dustproof cloth 6-2 arranged between the top of the fixed frame 4 and the sliding frame 5.
[0018] In summary, the dust suppression spray device for mine cars disclosed in this utility model constitutes a retractable dust cover by setting a fixed frame 4 and a sliding frame 5 that can slide relative to each other on the hopper 2, and connecting the side dust cover 6-1 and the top dust cover 6-2 between them. Before the mine car unloads, the sliding frame is driven to slide towards the tail of the hopper, unfolding the dust cover to cover the top and sides of the hopper, forming a semi-enclosed working space. When the hopper is lifted to unload, the dust cover can physically block and wrap the dust generated when the material falls, effectively inhibiting its outward diffusion and creating a sealed condition for subsequent dust suppression spray, thereby achieving source control. Therefore, the dust removal device disclosed in this utility model forms a semi-enclosed space during unloading through the retractable dust cover, achieving physical isolation and wrapping of the dust source, fundamentally changing the traditional open spray dust removal mode, greatly improving the dust capture rate, and significantly enhancing the dust removal effect.
[0019] When the slider slides to the end of the groove, the dust cover 6 is fully deployed. When the dust cover 6 is not deployed, to avoid damage to the dust cover, such as... Figure 2 As shown, in this embodiment, the sliding frame 5 has an installation groove on the side opposite to the fixed frame 4. The installation groove 21 includes vertical installation grooves on both sides and a horizontal installation groove between the tops of the two vertical installation grooves. A roller 22 is provided in both the vertical and horizontal installation grooves. The roller 22 is driven by a first motor 23 provided in the vertical or horizontal installation groove. One side of the side dustproof cloth 6-1 and the top dustproof cloth 6-2 is connected to the fixed frame 4, and the other side is connected to the corresponding roller 22. The first motor 23 is connected to the control system. By integrating a roller driven by the first motor 23 onto the sliding frame 5, the automatic winding and unfolding of the side dustproof cloth 6-1 and the top dustproof cloth 6-2 are achieved. When the sliding frame 5 moves, the control system can instruct the first motor 23 to rotate synchronously, so that the dustproof cloth automatically unfolds to form a sealed cover or automatically retracts after unloading. This design realizes the automated operation of the dustproof cover without manual intervention. Secondly, the winding design can neatly store the dustproof cloth when the dustproof cover is not unfolded, effectively avoiding the dustproof cloth being scratched, contaminated or tangled by the external environment during non-working states such as mine car driving and loading, thereby significantly extending its service life.
[0020] Furthermore, in order to achieve automatic control of dust removal, such as Figures 3-4As shown, each slide groove 20 is rotatably equipped with a screw 7, one end of which is driven by a second motor 8. A slider 9 is threadedly connected to the screw 7, and the slider 9 is also slidably connected to the inner wall of the slide groove 20. The two ends of the sliding frame 5 are fixedly connected to the corresponding slider 9. The hydraulic lifting unit 3 and the second motor 8 are both connected to the control system. An encoder for detecting the number of rotations is provided on the output shaft of the second motor 8, and the encoder is connected to the controller system. The control system is configured to execute a strict set of linkage control logic: when a discharge command is received, the control system first starts the second motor 8, drives the screw 7 to rotate, and drives the slider 9 and the sliding frame 5 fixed thereto to slide towards the tail of the hopper 2 until the dust cover 6 is fully deployed; the control system stops the second motor 8 and controls the hydraulic lifting unit 3 to perform the lifting and discharge operation after the encoder determines that the dust cover 6 has reached the fully open state; therefore, this design ensures that every discharge operation must be carried out under the premise that the dust cover 6 is effectively deployed, fundamentally avoiding unprotected discharge due to forgetfulness or misoperation, ensuring the reliability of dust reduction measures, and effectively ensuring the dust prevention effect.
[0021] To ensure effective dust removal through spraying without affecting normal material feeding and unloading when spraying is not in effect, such as Figure 5 As shown, in this embodiment, a first retractable water pipe 10 is provided between the fixed frame 4 and the sliding frame 5. The first retractable water pipe 10 includes a first fixed pipe 10-1, one end of which is fixedly connected to the fixed frame 4. A first telescopic pipe 10-2 is slidably sleeved on the inner side of the end of the first fixed pipe 10-1 away from the fixed frame 4. The end of the first telescopic pipe 10-2 is fixedly connected to the sliding frame 5. A plurality of first atomizing nozzles 13 are provided along the axial direction of the first fixed pipe 10-1. A water tank 11 is also integrally provided on one side of the hopper 2. When the hopper 2 is lifted, the water tank 11 is also lifted synchronously. A first water supply pipe 12 is provided between the water tank 11 and the fixed pipe 10-1, so that the first water supply pipe 12 can supply water normally. A water pump is connected in series on the first water supply pipe 12, and the water pump is connected to the control system. This embodiment achieves adaptive extension and retraction of the spray system by setting a first retractable water pipe 10 that extends and retracts synchronously with the dust cover. The atomizing nozzle is set on the first fixed pipe 10-1 near the cab, so that when the dust cover 6 is retracted and materials are loaded, the nozzle can be safely stored on one side of the fixed frame without interfering with the loading process, avoiding the risk of the nozzle being hit or contaminated by the materials. When the dust cover 6 is opened, the control system controls the water pump to start spraying. The dust is relatively small at the hopper position corresponding to the first fixed pipe 10-1, and the water output can be adjusted by adjusting the speed of the water pump through the control system.
[0022] Because the first atomizing nozzle 13 installed on the first fixed pipe 10-1 is used to remove dust from the position of the hopper near the carriage, in order to achieve effective dust removal, a second retractable water pipe 14 is also provided between the first fixed frame 4 and the sliding frame 5 disclosed in this embodiment. The second retractable water pipe 14 includes a second fixed pipe 14-1, one end of which is fixedly connected to the fixed frame 4. A second telescopic pipe 14-2 is slidably sleeved on the outer side of the end of the second fixed pipe 14-1 away from the fixed frame 4. The end of the second telescopic pipe 14-2 is fixedly connected to the sliding frame 5. A plurality of second atomizing nozzles 15 are arranged along the axial direction of the second telescopic pipe 14-2. A second water supply pipe 16 is provided between the water tank 11 and the second fixed pipe 14-1. A water pump is connected in series on the second water supply pipe 16. The water pump is connected to the control system. When the dust cover is fully opened, the second retractable water pipe 14 can be extended and retracted synchronously. Because the second atomizing nozzle 15 is set on the second telescopic pipe 14-2 located in the middle of the hopper 2, when the dust cover 6 is unfolded, the dust in the middle of the hopper 2 can be removed by multiple second atomizing nozzles 15. At the same time, the speed of the water pump at this location can be adjusted by the control system to control the second atomizing nozzles 15 to maintain a suitable water output.
[0023] Furthermore, in order to achieve dust removal at the tail of the hopper, the bottom of the sliding frame 5 disclosed in this embodiment is also provided with a transverse water pipe 18 arranged along the width direction of the hopper 2. The two ends of the transverse water pipe 18 are provided with mounting plates 17, and both mounting plates 17 are fixedly connected to the sliding frame 5. The transverse water pipe is fixed by the two mounting plates 17. The transverse water pipe 18 is also connected to the first telescopic pipe 10-2 and the second telescopic pipe 14-2 respectively through a tee. Multiple third atomizing nozzles 19 are provided on the transverse water pipe 18, and the mist outlet of the third atomizing nozzles 19 points towards the tail of the hopper 2. When the first retractable water pipe 10 and the second retractable water pipe 14 can supply water normally, the water also enters the horizontal water pipe 18. Then, the tail of the hopper can be dusted by the third atomizing nozzle 19 set on the horizontal water pipe 18. And because the water from the first retractable water pipe 10 and the second retractable water pipe 14 can both flow into the horizontal water pipe 18, a check valve is set at the outlet of each water pump to prevent water backflow from damaging the water pump.
[0024] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the present utility model. Any simple modifications, alterations, or equivalent structural changes made to the above embodiments based on the technical essence of the present utility model shall still fall within the protection scope of the present utility model.
Claims
1. A spray dust suppression device for a mining car, the mining car comprising a mining car body (1) and a hopper (2), the hopper (2) being hingedly connected to the mining car body (1), and a hydraulic lifting unit (3) further provided between the mining car body (1) and the hopper (2), wherein the hydraulic lifting unit (3) can lift and unload the hopper, characterized in that, The spray dust suppression device includes: A fixed frame (4) is provided along the width direction of the hopper (2), and the fixed frame (4) is provided on the hopper (2) and on the side close to the cab; Two chutes (20) are respectively provided on the two outer sides of the hopper (2), and the chutes (20) are provided along the length direction of the hopper (2); A sliding frame (5) is provided along the width direction of the hopper (2), and the two ends of the sliding frame (5) are slidably connected to the chute (20). The sliding frame (5) can slide along the length direction of the hopper (2). The dust cover (6) includes two side dust covers (6-1) disposed between the sides of the fixed frame (4) and the sliding frame (5), and also includes a top dust cover (6-2) disposed between the top of the fixed frame (4) and the sliding frame (5).
2. The spray dust suppression device for mine cars according to claim 1, characterized in that, The sliding frame (5) is provided with an installation groove (21) on the side opposite to the fixed frame (4). The installation groove (21) includes vertical installation grooves on both sides. A horizontal installation groove is also provided between the tops of the two vertical installation grooves. A roller (22) is provided in both the vertical installation groove and the horizontal installation groove. The roller (22) is driven by a first motor (23) provided in the vertical installation groove or the horizontal installation groove. One side of the side dustproof cloth (6-1) and the top dustproof cloth (6-2) are connected to the fixed frame (4), and the other side is connected to the corresponding roller (22). The first motor (23) is connected to the control system.
3. A spray dust suppression device for mine cars according to claim 1, characterized in that, Each of the slide grooves (20) is rotatably provided with a screw (7), one end of which is driven by a second motor (8). A slider (9) is threadedly connected to the screw (7), and the slider (9) is also slidably connected to the inner wall of the slide groove (20). The two ends of the sliding frame (5) are fixedly connected to the corresponding slider (9). The hydraulic lifting unit (3) and the second motor (8) are both connected to the control system.
4. A spray dust suppression device for mine cars according to claim 3, characterized in that, The output shaft of the second motor (8) is equipped with an encoder for detecting the number of rotations, and the encoder is connected to the controller system.
5. A spray dust suppression device for mine cars according to claim 1, characterized in that, A first retractable water pipe (10) is provided between the fixed frame (4) and the sliding frame (5). The first retractable water pipe (10) includes a first fixed pipe (10-1). One end of the first fixed pipe (10-1) is fixedly connected to the fixed frame (4). A first telescopic pipe (10-2) is slidably sleeved on the inner side of the end of the first fixed pipe (10-1) away from the fixed frame (4). The end of the first telescopic pipe (10-2) is fixedly connected to the sliding frame (5). A plurality of first atomizing nozzles (13) are provided along the axial direction of the first fixed pipe (10-1). A water tank (11) is also integrally provided on one side of the hopper (2). A first water supply pipe (12) is provided between the water tank (11) and the fixed pipe (10-1). A water pump is connected in series on the first water supply pipe (12). The water pump is connected to the control system.
6. A spray dust suppression device for mining cars according to claim 5, characterized in that, A second retractable water pipe (14) is also provided between the fixed frame (4) and the sliding frame (5). The second retractable water pipe (14) includes a second fixed pipe (14-1). One end of the second fixed pipe (14-1) is fixedly connected to the fixed frame (4). A second telescopic pipe (14-2) is slidably sleeved on the outer side of the end of the second fixed pipe (14-1) away from the fixed frame (4). The end of the second telescopic pipe (14-2) is fixedly connected to the sliding frame (5). A plurality of second atomizing nozzles (15) are provided along the axial direction of the second telescopic pipe (14-2). A second water supply pipe (16) is provided between the water tank (11) and the second fixed pipe (14-1). A water pump is connected in series on the second water supply pipe (16). The water pump is connected to the control system.
7. A spray dust suppression device for mining cars according to claim 5, characterized in that, The bottom of the sliding frame (5) is also provided with a transverse water pipe (18) arranged along the width direction of the hopper (2). The two ends of the transverse water pipe (18) are provided with mounting plates (17). Both mounting plates (17) are fixedly connected to the sliding frame (5). The transverse water pipe (18) is connected to the first telescopic pipe (10-2) and the second telescopic pipe (14-2) respectively. Multiple third atomizing nozzles (19) are provided on the transverse water pipe (18). The mist outlet of the third atomizing nozzle (19) points to the tail of the hopper (2).