Sand washing mechanism for mining machinery and sand washing method thereof

Abstract

The invention belongs to the technical field of mine sandstone washing and separating equipment, and particularly relates to a sand washing mechanism for mining machinery and a sand washing method of the sand washing mechanism. The sand washing mechanism comprises a sand washing device, a sand washing seat of the sand washing device is fixedly connected with the slope discharging seat, a filter plate is arranged in the sand washing seat, a water outlet is formed in the bottom of the sand washing seat, two groups of washing main pipes are arranged above the sand washing seat, and washing branch pipes are connected between the main pipes. An impeller assembly is arranged on the inner side of the sand washing seat, and an L-shaped baffle is fixed to the side wall of a hexagonal column, so that the impurity cleaning effect of the washing main pipe can be improved; a turning and stirring assembly is arranged in the hexagonal column, a T-shaped circular plate of the assembly is rotationally connected to the surface of the hexagonal column, and a turning and stirring step block at the top of the T-shaped circular plate can turn over gravel between the hexagonal column and an L-shaped baffle. The problems that in the prior art, gravel cleaning, stirring and turning are uneven, cleaning blind areas exist, and stubborn impurities are difficult to strip are effectively solved, meanwhile, the defects of a non-intermittent pressurizing cleaning structure are overcome, and the current situations that the sand washing efficiency is low, fine sand is prone to losing, and the finished sand recovery rate is low are improved.

Description

Technical Field

[0001] This invention relates to the technical field of sand and gravel washing and separation equipment in mining, specifically to a sand washing mechanism for mining machinery and its sand washing method. Background Technology

[0002] The sand washing mechanism for mining machinery is a sand and gravel washing device in a mining sand production line. It removes mud, stone powder and impurities from the sand through washing, stirring and screening, so as to purify, dehydrate and classify the sand, improve the quality of the finished sand and adapt to continuous mining operations.

[0003] The sand and gravel to be washed enter the washing chamber through the feed inlet. Driven by a power source, the impeller continuously agitates and tumbles the sand and gravel, while high-pressure water spraying simultaneously removes surface dirt, dust, and impurities, forming a slurry. The slurry is discharged through the overflow outlet, while the clean sand and gravel are conveyed upwards by the blades, passing through a dewatering screen or guide plate to remove excess water, achieving solid-liquid separation and material classification. The entire process continuously completes washing, dewatering, and slag discharge. With a simple structure and stable operation, it effectively improves the purity and quality of the finished sand, meeting the continuous operation requirements of mining sand production lines.

[0004] However, traditional sand washing machines in mines mostly adopt a single water washing and rinsing structure. The sand and gravel in the cavity are tumbled in a single way, and the mixing uniformity is poor. This easily leads to blind spots in the cleaning process, resulting in incomplete removal of impurities. In addition, the sand and gravel have a short residence time, which cannot achieve sufficient cleaning. At the same time, there is a lack of targeted vibration-assisted impurity removal structure. Stubborn mud clumps and fine mud powder adhering to the surface of the sand and gravel are difficult to remove effectively. The impurities are not completely separated from the mud and water. This not only easily causes blockage of the discharge port, affecting continuous and stable operation, but also easily causes fine sand to overflow with the mud and water. The finished sand recovery rate is low, resulting in resource waste. The overall cleaning effect is difficult to meet the production requirements of high-purity finished sand. Summary of the Invention

[0005] To address the aforementioned shortcomings of existing technologies, this invention provides a sand washing mechanism and method for mining machinery, which can effectively solve the problems of uneven stirring and turning, blind spots in sand and gravel washing, difficulty in removing stubborn impurities, lack of intermittent pressurization washing structure, low sand washing efficiency, easy loss of fine sand, and low finished product recovery rate in existing technologies.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] This invention provides a sand washing mechanism for mining machinery, including a sand washing device. The sand washing device includes a sand washing base and an inclined feeding base, which are fixedly connected. A filter plate is provided inside the sand washing base, and a drain outlet is provided at the bottom of the sand washing base. The filter plate is used to filter impurities after cleaning the impeller assembly and the main water washing pipe. Two sets of main water washing pipes are installed above the sand washing base, and a water washing branch pipe is installed between the main water washing pipes.

[0008] The impeller assembly is used to improve the cleaning effect of the water washing main pipe on impurities. The impeller assembly includes a hexagonal column installed inside the sand washing seat, and an L-shaped baffle is fixedly connected to the side wall of the hexagonal column.

[0009] A mixing assembly is provided inside the hexagonal column. The mixing assembly is used to turn over the sand and gravel separated between the hexagonal column and the L-shaped baffle. The mixing assembly includes a T-shaped circular plate rotatably connected to the surface of the hexagonal column. A mixing step block is fixedly connected to the top of the T-shaped circular plate. The mixing step block is used to control the mixing of sand and gravel.

[0010] Preferably, two mounting pulleys are fixedly connected to both sides of the hexagonal column. The mounting pulleys are located on the outside of the sand washing seat. There are two sets of hexagonal columns and mounting pulleys. Two mounting pulleys on one side are connected by a transmission belt, and one mounting pulley on the other side is connected to a motor pulley by a drive belt. The motor pulley is mounted on the output shaft of the drive motor, and the drive motor is mounted on the ground.

[0011] Preferably, the mixing assembly includes a hexagonal cavity formed within the hexagonal column, the hexagonal column having a T-shaped circular groove inside, a T-shaped circular plate rotatably connected within the T-shaped circular groove, a rotating gear fixedly connected to the bottom of the T-shaped circular plate, and a circumferential drive gear meshing with the rotating gear.

[0012] Preferably, a through groove is provided inside the hexagonal column, a central rod is rotatably connected inside the through groove, fixed folding rods are fixedly connected to both sides of the central rod, the fixed folding rods are fixedly connected to the outside of the sand washing seat, a driving disc is fixedly connected to the side wall of the central rod, and a circumferential driving tooth block is fixedly connected to one side of the driving disc.

[0013] Preferably, a vibration assembly is provided inside the L-shaped baffle. The vibration assembly includes a vibration groove formed inside the L-shaped baffle, a vibration plate is slidably connected inside the vibration groove, and the vibration plate and the L-shaped baffle are connected by a vibration spring.

[0014] Preferably, the hexagonal column has a striking groove, a fixed shaft is rotatably connected to the striking groove, a rotating shaft is rotatably connected to the side wall of the fixed shaft via a torsion spring, a striking rod and a driving lever are fixedly connected to the side wall of the rotating shaft, a striking block is fixedly connected to one side of the striking rod, the striking block is used to strike the vibrating plate, and the other end of the driving lever abuts against the tooth groove of the rotating gear.

[0015] Preferably, a cleaning assembly is provided inside the L-shaped baffle. The cleaning assembly is used to clean sand and gravel. The cleaning assembly includes a water storage tank opened inside the L-shaped baffle. A rotating groove and a nozzle inlet are opened at the bottom of the L-shaped baffle. A T-shaped rotating tube is rotatably connected inside the rotating groove. The bottom of the T-shaped rotating tube is fixedly connected to the top of the T-shaped circular plate. A spray nozzle is opened on the side wall of the T-shaped rotating tube. A rotating tube inlet is provided at the top of the T-shaped rotating tube. A high-pressure nozzle is installed at the bottom of the nozzle inlet.

[0016] Preferably, the L-shaped baffle is provided with an intermittent pressurization component, which is used to adjust the size of the water inlet of the rotating pipe and the water inlet of the nozzle. The intermittent pressurization component includes a baffle plate disposed in the water storage tank. The baffle plate has a communication opening. The baffle plate is fixedly connected to the side wall of the T-shaped slide plate. The T-shaped slide plate is slidably connected in the water storage tank and the slide groove. The slide groove is opened in the L-shaped baffle.

[0017] Preferably, the water storage tank is connected to the main water washing pipe via a water supply assembly. The water supply assembly includes a mounting plate fixedly connected to one side of the hexagonal column. The mounting plate has a mounting groove, and a water supply disc is rotatably connected to the mounting groove. A water collection tank is formed in the water supply disc. The main water washing pipe and the water collection tank are connected via a water supply channel installed on the side wall of the main water washing pipe. The water collection tank and the water storage tank are connected via a connecting hole, which is formed on the side wall of the mounting plate.

[0018] This solution also provides a sand washing method for mining machinery, including the following steps:

[0019] S1: The sand and gravel are fed into the inclined material feeding seat. The main water washing pipe and the branch water washing pipe spray simultaneously to remove the floating mud and impurities on the surface of the sand and gravel before entering the sand washing seat.

[0020] S2: Turn on the drive motor, which drives the two sets of hexagonal columns and L-shaped baffles to rotate synchronously through the drive belt and transmission belt;

[0021] S3: The mixing component turns the sand and gravel over, and the linkage vibration component generates high-frequency vibration to loosen impurities;

[0022] S4: The water supply component supplies water to the water storage tank. After being pressurized by the intermittent pressurization component, the water is sprayed through dual high-pressure jets to flush away sand and gravel without dead angles.

[0023] S5: Clean sand and gravel discharge washing device. Impurities are filtered through the filter plate and discharged from the drain outlet.

[0024] The technical solution provided by this invention has the following advantages compared with the known prior art:

[0025] This invention achieves uniform agitation of sand and gravel through the linkage design of the mixing component and the impeller component. Its core is that when the hexagonal column rotates, the circumferential drive teeth mesh with the rotating gears, driving the T-shaped circular plate and the agitation step blocks to rotate, thus performing step-by-step agitation on the sand and gravel in different chambers. The agitation step blocks can agitate sand and gravel of different particle sizes in layers, preventing fine sand from being covered by coarse stones, completely eliminating blind spots in the cleaning process, and fully exposing all surfaces of the sand and gravel. Combined with the preliminary cleaning process, the sand and gravel with pre-existing impurities removed make full contact with the subsequent cleaning and vibration components during agitation, significantly improving the efficiency of impurity removal. At the same time, it extends the residence time of the sand and gravel in the washing seat, laying the foundation for deep cleaning, and is suitable for the operational needs of mines with large quantities of sand and gravel with uneven particle sizes.

[0026] The vibration assembly, through the rotating gears of the tumbling assembly, drives a folding rod, causing the striking block to periodically strike the vibrating plate. This, combined with the vibration spring, generates high-frequency vibration that is transmitted to the sand and gravel. This high-frequency vibration effectively loosens stubborn clumps of mud and fine clay powder adhering to the surface of the sand and gravel, overcoming the limitation of traditional single-water washing which only removes floating impurities, and significantly improving the efficiency of impurity removal. Vibration and tumbling are performed simultaneously; as the sand and gravel are tumbled and exposed to new surfaces, impurities are removed, making subsequent high-pressure cleaning more targeted, preventing secondary adhesion of impurities, significantly improving the cleanliness of the finished sand, and ensuring continuous and stable operation of the production line.

[0027] The cleaning unit works in conjunction with the intermittent pressurization unit and the water supply unit, achieving deep cleaning through a dual-outlet water structure. The water supply unit continuously supplies water to the storage tank, and the baffle plate adjusts the inlet cross-sectional area to achieve intermittent pressurization. The water flows through the T-shaped rotating pipe spray nozzle for rotating spraying and high-pressure nozzles for targeted spraying. This allows the high-pressure water flow to thoroughly wash the sand and gravel, significantly increasing the cleaning coverage and impact force, and completely removing residual impurities. The T-shaped rotating pipe rotates synchronously with the T-shaped circular plate, adapting to the state of the sand and gravel after agitation, and shares a water supply source with the main water washing pipe, requiring no additional power equipment. At the same time, the filter plate and drain outlet of the sand washing device quickly separate mud and water impurities, intercepting fine sand to reduce loss, effectively improving the current situation of low sand washing efficiency and low finished sand recovery rate, and meeting the production requirements of high-purity finished sand. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0029] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0030] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0031] Figure 3 This is a partial cross-sectional structural diagram of the present invention;

[0032] Figure 4 This is a schematic diagram of the cross-sectional structure of the present invention;

[0033] Figure 5 For the present invention Figure 3 Enlarged structural diagram at point A in the middle;

[0034] Figure 6 For the present invention Figure 5 Enlarged structural diagram at point B;

[0035] Figure 7 For the present invention Figure 5 Enlarged structural diagram at point C;

[0036] Figure 8 For the present invention Figure 4 Enlarged structural diagram at point D.

[0037] Reference numerals: 1. Sand washing device; 11. Sand washing seat; 12. Inclined discharge seat; 13. Filter plate; 14. Drain outlet; 15. Main water washing pipe; 16. Branch water washing pipe; 2. Impeller assembly; 21. Hexagonal column; 22. Mounting pulley; 23. L-shaped baffle; 24. Drive motor; 25. Motor pulley; 26. Drive belt; 27. Transmission belt; 3. Tumbling assembly; 31. Hexagonal cavity; 32. T-shaped circular groove; 33. T-shaped circular plate; 34. Rotating gear; 35. Tumbling stepped block; 36. Center rod; 37. Through groove; 38. Fixed folding rod; 39. Drive disc; 310. Circumferential drive tooth block; 4. Vibration assembly; 41 42. Vibration groove; 43. Vibration plate; 44. Vibration spring; 45. Impact groove; 46. Fixed shaft; 47. Torsion spring; 48. Rotating shaft; 49. Impact rod; 40. Impact block; 410. Drive lever; 5. Cleaning assembly; 51. Water storage tank; 52. Rotating groove; 53. T-shaped rotating pipe; 54. Rotating pipe inlet; 55. Spray nozzle; 56. Spray head inlet; 57. High-pressure nozzle; 6. Intermittent pressurization assembly; 61. Baffle plate; 62. Connecting port; 63. T-shaped sliding plate; 64. Slide groove; 7. Water supply assembly; 71. Mounting groove; 72. Water supply disc; 73. Water collection tank; 74. Water supply channel; 75. Connecting hole; 76. Mounting plate. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0039] The present invention will be further described below with reference to embodiments.

[0040] Example 1: Refer to Figures 1 to 8 A sand washing mechanism for mining machinery.

[0041] The device includes a sand washing unit 1, which includes a sand washing base 11 and an inclined discharge base 12. The sand washing base 11 and the inclined discharge base 12 are fixedly connected. A filter plate 13 is provided inside the sand washing base 11, and a drain outlet 14 is provided at the bottom of the sand washing base 11. The filter plate 13 is used to filter impurities after the impeller assembly 2 and the water washing main pipe 15 are cleaned. Two sets of water washing main pipes 15 are installed above the sand washing base 11, and water washing branch pipes 16 are installed between the water washing main pipes 15.

[0042] Specifically, the sand washing device 1 mainly consists of a sand washing base 11 and a sloped discharge base 12 fixedly connected. The sand washing base 11 is equipped with a filter plate 13 and a drain outlet 14 at the bottom. Two sets of main water washing pipes 15 are installed above, and the main pipes are connected to the branch water washing pipes 16, forming a complete water washing, filtration, slag discharge, and material discharge channel. In the continuous conveying environment of the mining production line, the sand and gravel are first discharged through the sloped discharge base 12. The main water washing pipes 15 and the branch pipes simultaneously carry out preliminary spray cleaning to remove floating mud and impurities. After that, the sand and gravel enter the sand washing base 11. The filter plate 13 performs solid-liquid separation filtration on the cleaned impurities. The impurities are discharged with the wastewater from the bottom drain outlet 14. The sand and gravel that have completed the preliminary cleaning are then further processed with the help of subsequent components. Finally, the clean sand and gravel are discharged sequentially under the rotation of the impeller, which is suitable for the continuous and large-scale operation requirements of the mine.

[0043] The inclined structure of the sloping material feeding seat 12 of the sand washing device 1 conforms to the physical characteristics of gravity conveying of sand and gravel in mines, effectively preventing sand and gravel from getting stuck and ensuring continuous operation of the production line. The combined layout of the main water washing pipe 15 and the branch pipes realizes preliminary cleaning of the entire area during the sand and gravel feeding stage, removing easily detachable impurities in advance and reducing the load on subsequent deep cleaning. The filter plate 13 in the sand washing seat 11 and the bottom drain outlet 14 form a highly efficient instant filtration and slag discharge structure, which can quickly separate the mud and water impurities after washing, prevent impurities from adhering to the sand and gravel again, and at the same time, the filter plate 13 can intercept fine sand, reduce the loss of finished sand, and improve the recovery rate.

[0044] The impeller assembly 2 is used to improve the cleaning effect of the water washing main pipe 15 on impurities. The impeller assembly 2 includes a hexagonal column 21 installed inside the sand washing seat 11. An L-shaped baffle 23 is fixedly connected to the side wall of the hexagonal column 21.

[0045] The hexagonal column 21 is fixedly connected to two sides of the mounting pulleys 22, which are located on the outside of the sand washing seat 11. There are two sets of the hexagonal column 21 and the mounting pulleys 22. Two of the mounting pulleys 22 on one side are connected by a transmission belt 27, and one of the mounting pulleys 22 on the other side is connected to a motor pulley 25 by a drive belt 26. The motor pulley 25 is mounted on the output shaft of the drive motor 24, which is mounted on the ground.

[0046] Specifically, the impeller assembly 2 mainly consists of hexagonal columns 21, L-shaped baffles 23, and mounting pulleys 22. Two sets of hexagonal columns 21 are symmetrically installed inside the sand washing base 11, with L-shaped baffles 23 evenly distributed on their side walls. The mounting pulleys 22 on both sides are connected to the drive motor 24 on the outside of the sand washing base 11. The drive motor 24 transmits power to the hexagonal columns 21 through the pulley set, causing them to rotate around their own axis. The L-shaped baffles 23 rotate synchronously with the hexagonal columns 21, continuously feeding, pushing, and separating the sand and gravel in the sand washing base 11. This allows the sand and gravel to move with the rotation of the impeller, while providing a working platform for the mixing assembly 3, vibration assembly 4, and washing assembly 5. Together with these components, they complete the coordinated washing process, ultimately pushing the clean sand and gravel to the inclined discharge seat 12, achieving orderly flow and continuous operation of the sand and gravel within the sand washing base 11.

[0047] The hexagonal column 21 of the impeller assembly 2, combined with the L-shaped baffle 23, divides the sand washing space into multiple independent cleaning chambers compared to traditional circular impellers. This prevents excessive accumulation of sand and gravel, ensuring that the sand and gravel in each chamber can fully contact each cleaning component 5, eliminating blind spots in the cleaning process from the source. This design is suitable for the cleaning needs of mines with large quantities of sand and gravel and uneven particle sizes. The transmission method using the pulley 22 is adapted to the complex working environment of mines, providing stable transmission and a low failure rate. Furthermore, the synchronous rotation of the two sets of hexagonal columns 21 significantly improves the efficiency of sand and gravel feeding and pushing, ensuring continuous operation of the production line. Meanwhile, the L-shaped baffle 23 follows the rotation trajectory of the impeller and fits the cavity structure of the sand washing seat 11, which can effectively drive the sand and gravel to make circumferential and lifting movements, prolong the residence time of the sand and gravel in the sand washing seat 11, and allow the effects of turning, vibration and high pressure cleaning to be fully utilized. It can also prevent the sand and gravel from getting stuck in the dead corner of the sand washing seat 11. Its structural strength is suitable for the working conditions of coarse and heavy sand and gravel in the mine. It is wear-resistant and impact-resistant, which greatly improves the service life of the equipment. It is a key basic component for realizing multi-stage collaborative cleaning.

[0048] A mixing assembly 3 is provided inside the hexagonal column 21. The mixing assembly 3 is used to turn over the sand and gravel separated between the hexagonal column 21 and the L-shaped baffle 23. The mixing assembly 3 includes a T-shaped circular plate 33 rotatably connected to the surface of the hexagonal column 21. A mixing step block 35 is fixedly connected to the top of the T-shaped circular plate 33. The mixing step block 35 is used to control the mixing of sand and gravel.

[0049] The mixing assembly 3 includes a hexagonal cavity 31 formed in the hexagonal column 21. The hexagonal column 21 has a T-shaped circular groove 32. A T-shaped circular plate 33 is rotatably connected in the T-shaped circular groove 32. A rotating gear 34 is fixedly connected to the bottom of the T-shaped circular plate 33. The rotating gear 34 is meshed with a circumferential drive tooth block 310.

[0050] A through groove 37 is provided inside the hexagonal column 21. A central rod 36 is rotatably connected inside the through groove 37. Fixed folding rods 38 are fixedly connected to both sides of the central rod 36. The fixed folding rods 38 are fixedly connected to the outside of the sand washing seat 11. A driving disc 39 is fixedly connected to the side wall of the central rod 36. A circumferential driving tooth block 310 is fixedly connected to one side of the driving disc 39.

[0051] Specifically, the mixing component 3 is integrated within the hexagonal column 21 of the impeller assembly 2, and consists of a hexagonal cavity 31, a T-shaped circular groove 32, a T-shaped circular plate 33, a rotating gear 34, a circumferential drive tooth block 310, and a mixing step block 35. The central rod 36 is fixedly connected to the sand washing seat 11 via a fixed folding rod 38. The circumferential drive tooth block 310 on the side wall drive disc 39 meshes with the rotating gear 34 at the bottom of the T-shaped circular plate 33. When the hexagonal column 21 rotates with the impeller assembly 2, the rotating gear 34 and the circumferential drive tooth block 310 engage relative to each other, driving the T-shaped circular plate 33 to rotate within the T-shaped circular groove 32. The top mixing step block 35 rotates along with it, performing a step-by-step mixing of the sand and gravel separated between the hexagonal column 21 and the L-shaped baffle 23, breaking the sand and gravel accumulation state, and achieving precise stirring and all-round turning of the sand and gravel.

[0052] The mixing component 3 solves the problems of uneven mixing and blind spots in traditional sand washing mechanisms. Its transmission design, linked with the impeller component 2, adapts to the power layout requirements of open-pit mining operations, significantly reducing equipment energy consumption and the probability of failure. The stepped structure of the mixing step block 35 conforms to the physical characteristics of sand and gravel, allowing for layered mixing of sand and gravel of different particle sizes. This prevents fine sand from being covered by coarse stones and unable to contact the washing water flow, completely eliminating blind spots. Compared to traditional single impeller material feeding, this component achieves active and precise mixing of sand and gravel, fully exposing all surfaces of the sand and gravel, providing a good working foundation for subsequent vibration impurity removal and secondary high-pressure washing, and significantly improving impurity removal efficiency. At the same time, all structures within the component are made of wear-resistant materials, adapting to the friction and impact conditions of mining sand and gravel, ensuring a long service life. Furthermore, the entire component is integrated within the hexagonal column 21, resulting in a compact structure that does not occupy additional sand washing space, ensuring continuous operation of the sand washing mechanism, and effectively improving overall sand washing efficiency and the cleanliness of the finished sand.

[0053] The L-shaped baffle 23 is provided with a vibration component 4. The vibration component 4 includes a vibration groove 41 formed in the L-shaped baffle 23. A vibration plate 42 is slidably connected in the vibration groove 41. The vibration plate 42 and the L-shaped baffle 23 are connected by a vibration spring 43.

[0054] The hexagonal column 21 has an impact groove 44, and a fixed shaft 45 is rotatably connected to the impact groove 44. The side wall of the fixed shaft 45 is rotatably connected to a rotating shaft 47 via a torsion spring 46. An impact rod 48 and a drive lever 410 are fixedly connected to the side wall of the rotating shaft 47. An impact block 49 is fixedly connected to one side of the impact rod 48. The impact block 49 is used to strike the vibrating plate 42. The other end of the drive lever 410 abuts against the tooth groove of the rotating gear 34.

[0055] Specifically, the vibration assembly 4 is built into the L-shaped baffle 23 and consists of a vibration groove 41, a vibration plate 42, a vibration spring 43, and a striking drive structure within the hexagonal column 21. The vibration plate 42 is slidably connected within the vibration groove 41 and connected to the L-shaped baffle 23 via the vibration spring 43. When the rotating gear 34 of the stirring assembly 3 rotates, its tooth wall groove continuously abuts against the drive lever 410, causing the rotating shaft 47 to rotate around the fixed shaft 45. The torsion spring 46 simultaneously stores force, and the striking rod 48 swings with the rotating shaft 47, causing the end striking block 49 to periodically strike the vibration plate 42. After being struck, the vibration plate 42 slides back and forth within the vibration groove 41, and in conjunction with the elastic reset of the vibration spring 43, it forms a high-frequency vibration, transmitting the vibration energy to the sand and gravel between the L-shaped baffle 23 and the hexagonal column 21, thus achieving mechanical vibration and impurity removal from the sand and gravel.

[0056] The vibration component 4 solves the problem of stubborn impurities being difficult to remove in traditional sand washing mechanisms. Its purely mechanical drive design, linked with the turning and mixing component 3, is suitable for the complex operating environment of open-pit mines, which are dusty and humid. This reduces the energy consumption and failure probability of the equipment, and improves operational stability. The component achieves high-frequency vibration through the periodic impact of the striking block 49. The vibration energy acts directly on the sand and gravel, effectively loosening stubborn mud clumps and fine mud powder adhering to the surface, significantly improving the efficiency of impurity removal and overcoming the limitation of traditional water washing, which can only remove floating impurities. Simultaneously, the vibration occurs in sync with the turning and mixing process. As the sand and gravel are turned and exposed to new surfaces, vibration removes impurities, making subsequent high-pressure cleaning more targeted and further improving overall sand washing efficiency. All components are made of wear-resistant and impact-resistant materials, adapting to the friction and impact conditions of mine sand and gravel, ensuring a long service life. The entire component is integrated into the L-shaped baffle 23, resulting in a compact structure that does not occupy additional sand washing space, ensuring continuous operation of the sand washing mechanism and effectively improving the cleanliness of the finished sand.

[0057] A cleaning component 5 is provided inside the L-shaped baffle 23. The cleaning component 5 is used to clean sand and gravel. The cleaning component 5 includes a water storage tank 51 opened inside the L-shaped baffle 23. A rotating groove 52 and a nozzle inlet 56 are opened at the bottom of the L-shaped baffle 23. A T-shaped rotating tube 53 is rotatably connected inside the rotating groove 52. The bottom of the T-shaped rotating tube 53 is fixedly connected to the top of the T-shaped circular plate 33. A spray nozzle 55 is opened on the side wall of the T-shaped rotating tube 53. A rotating tube inlet 54 is provided at the top of the T-shaped rotating tube 53. A high-pressure nozzle 57 is installed at the bottom of the nozzle inlet 56.

[0058] An intermittent pressurization component 6 is provided inside the L-shaped baffle 23. The intermittent pressurization component 6 is used to adjust the size of the rotating pipe inlet 54 and the nozzle inlet 56. The intermittent pressurization component 6 includes a baffle 61 provided inside the water storage tank 51. A communication port 62 is provided inside the baffle 61. The baffle 61 is fixedly connected to the side wall of the T-shaped slide plate 63. The T-shaped slide plate 63 is slidably connected to the water storage tank 51 and the slide groove 64. The slide groove 64 is opened inside the L-shaped baffle 23.

[0059] The water storage tank 51 is connected to the main water washing pipe 15 via a water supply assembly 7. The water supply assembly 7 includes a mounting plate 76 fixedly connected to one side of the hexagonal column 21. The mounting plate 76 has a mounting groove 71, and a water supply disc 72 is rotatably connected to the mounting groove 71. A water collection tank 73 is provided in the water supply disc 72. The main water washing pipe 15 and the water collection tank 73 are connected via a water supply channel 74, which is installed on the side wall of the main water washing pipe 15. The water collection tank 73 and the water storage tank 51 are connected via a connecting hole 75, which is located on the side wall of the mounting plate 76.

[0060] Specifically, the cleaning component 5 is built into the L-shaped baffle 23 and consists of a water storage tank 51, a T-shaped rotating pipe 53, a high-pressure nozzle 57, and a water inlet. The T-shaped rotating pipe 53 is rotatably connected to the rotating groove 52 of the L-shaped baffle 23 and its bottom is fixedly connected to the T-shaped circular plate 33. The main water washing pipe 15 continuously supplies water to the water storage tank 51 through the water supply component 7. Part of the water flows into the T-shaped rotating pipe 53, which rotates synchronously with the T-shaped circular plate 33, through the rotating pipe inlet 54, and is sprayed onto the agitated sand and gravel through the side wall spray nozzle 55; the other part is transported to the high-pressure nozzle 57 through the nozzle inlet 56. Combined with the cross-sectional area adjustment of the intermittent pressurization component 6, high-pressure spraying is achieved, forming a dual-path cleaning structure. This completes a secondary high-pressure cleaning of the sand and gravel after vibration and impurity removal. Finally, the cleaned sand and gravel is pushed to the discharge seat by the L-shaped baffle 23.

[0061] The dual-outlet water design of the cleaning component 5 is adapted to the cleaning needs of mine sand and gravel with uneven particle size and residual impurities. The spray nozzle 55 rotates with the T-shaped rotating pipe 53 to achieve spraying without dead angles, while the high-pressure nozzle 57 completes targeted high-pressure flushing. The combination of the two greatly improves the cleaning coverage and impact force, thoroughly removing residual impurities from the surface of the sand and gravel. This component works in conjunction with the turning and vibrating component 4, performing a secondary cleaning after the sand and gravel are fully turned over and stubborn impurities are loosened, making the cleaning more targeted and solving the problem of incomplete cleaning by traditional single-water washing. The water storage tank 51 inside the component can buffer the water flow and ensure the stability of the water supply. It is also built into the L-shaped baffle 23, with a compact structure that does not occupy additional sand washing space, making it suitable for open-pit and continuous operation conditions in mines. At the same time, the component and the main water washing pipe 15 share the same water supply source, eliminating the need for additional power equipment, reducing energy consumption and the probability of failure, and effectively improving the cleanliness of the finished sand and the sand washing efficiency.

[0062] Example 2: Refer to Figures 1 to 8 A sand washing method for mining machinery includes...

[0063] S1: The sand and gravel are fed into the inclined material feeding seat 12. The main water washing pipe 15 and the branch water washing pipe 16 spray simultaneously to remove the floating mud and impurities on the surface of the sand and gravel before entering the sand washing seat 11.

[0064] S2: Turn on the drive motor 24, which drives the two sets of hexagonal columns 21 and L-shaped baffles 23 to rotate synchronously through the drive belt 26 and the transmission belt 27.

[0065] S3: The mixing component 3 turns the sand and gravel over, and the vibration component 4 generates high-frequency vibration to loosen the impurities.

[0066] S4: Water supply component 7 supplies water to water storage tank 51. After being pressurized by intermittent pressurization component 6, the water is sprayed through dual high-pressure jets to flush away sand and gravel without dead angles.

[0067] S5: Clean sand and gravel discharge washing device 1, impurities are filtered by filter plate 13 and discharged from drain outlet 14.

[0068] The working principle of this invention is as follows:

[0069] The sand washing mechanism drives the impeller assembly 2 through the belt pulley group to achieve a continuous operation of preliminary cleaning, tumbling and stirring, and mechanical vibration to remove impurities. When the sand and gravel to be washed enter the inclined material feeding seat 12 and are discharged along the inclined surface, the two sets of water washing main pipes 15 above the sand washing seat 11 and the water washing branch pipes 16 between the main pipes are opened simultaneously to perform preliminary spray cleaning on the moving sand and gravel, and wash away the floating mud, stone powder and other impurities that are easy to fall off the surface. The sand and gravel after preliminary cleaning naturally fall into the sand washing seat 11. The drive motor 24 drives two sets of hexagonal columns 21 to rotate synchronously via the drive belt 26 and the transmission belt 27. The L-shaped baffle 23 on the side wall rotates with the column to push the sand and gravel and separate the cavities. At the same time, the central rod 36 fixed inside the hexagonal column 21 drives the circumferential drive tooth block 310 on the drive disc 39 to mesh with the rotating gear 34 at the bottom of the T-shaped circular plate 33, so that the T-shaped circular plate 33 drives the turning step block 35 to rotate, and performs step-by-step precise turning of the sand and gravel in the cavity, breaking the sand and gravel accumulation state, eliminating the blind spot of cleaning, and allowing all surfaces of the sand and gravel to be fully exposed.

[0070] While the mixing component 3 is operating, mechanical vibration is triggered simultaneously to remove impurities. When the rotating gear 34 rotates, its tooth wall groove continuously abuts against the drive lever 410, causing the rotating shaft 47 to rotate around the fixed shaft 45. The torsion spring 46 stores power simultaneously, and the striking block 49 at the end of the striking rod 48 periodically strikes the vibrating plate 42 inside the L-shaped baffle 23. The vibrating plate 42 generates high-frequency vibration under the elastic reset action of the vibration spring 43, transmitting vibration energy to the sand and gravel in the cavity, loosening the stubborn mud clumps and fine mud powder adhering to the surface of the sand and gravel, greatly improving the efficiency of impurity removal. The shaken-off impurities fall with the water flow, are filtered by the filter plate 13 inside the sand washing seat 11, and are discharged from the bottom drain outlet 14, completing the solid-liquid separation. Subsequently, the main water washing pipe 15 continuously supplies water to the water storage tank 51 inside the L-shaped baffle 23 through the water supply component 7. The intermittent pressurization component 6 inside the water storage tank 51 achieves intermittent pressurization of the water flow by sliding the inlet cross-sectional area through the baffle plate 61. The pressurized water flows through the T-shaped rotating pipe 53 and the spray nozzle 55 for rotational spraying, and through the high-pressure nozzle 57 for high-pressure spraying, to perform secondary high-pressure cleaning of the sand and gravel after agitation and vibration, further removing residual impurities. The clean sand and gravel are finally discharged, achieving multi-stage synergistic and efficient sand washing.

[0071] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A sand washing mechanism for mining machinery, characterized in that, The device includes a sand washing unit (1), which includes a sand washing seat (11) and a slope discharge seat (12). The sand washing seat (11) and the slope discharge seat (12) are fixedly connected. A filter plate (13) is provided inside the sand washing seat (11). A drain outlet (14) is provided at the bottom of the sand washing seat (11). The filter plate (13) is used to filter impurities after the impeller assembly (2) and the water washing main pipe (15) are cleaned. Two sets of water washing main pipes (15) are installed above the sand washing seat (11). A water washing branch pipe (16) is installed between the water washing main pipes (15). The impeller assembly (2) is used to improve the cleaning effect of the water washing main pipe (15) on impurities. The impeller assembly (2) includes a hexagonal column (21) installed inside the sand washing seat (11). An L-shaped baffle (23) is fixedly connected to the side wall of the hexagonal column (21). A mixing assembly (3) is provided inside the hexagonal column (21). The mixing assembly (3) is used to turn over the sand and gravel separated between the hexagonal column (21) and the L-shaped baffle (23). The mixing assembly (3) includes a T-shaped circular plate (33) rotatably connected to the surface of the hexagonal column (21). A mixing step block (35) is fixedly connected to the top of the T-shaped circular plate (33). The mixing step block (35) is used to control the mixing of sand and gravel.

2. The sand washing mechanism for mining machinery according to claim 1, characterized in that, The hexagonal column (21) is fixedly connected to two sides of the mounting pulleys (22). The mounting pulleys (22) are located on the outside of the sand washing seat (11). There are two sets of the hexagonal column (21) and the mounting pulleys (22). The two mounting pulleys (22) on one side are connected by a transmission belt (27). One of the mounting pulleys (22) on the other side is connected to a motor pulley (25) by a drive belt (26). The motor pulley (25) is installed on the output shaft of the drive motor (24). The drive motor (24) is installed on the ground.

3. The sand washing mechanism for mining machinery according to claim 1, characterized in that, The mixing assembly (3) includes a hexagonal cavity (31) opened in the hexagonal column (21), the hexagonal column (21) has a T-shaped circular groove (32) opened in it, the T-shaped circular plate (33) is rotatably connected in the T-shaped circular groove (32), the bottom of the T-shaped circular plate (33) is fixedly connected to a rotating gear (34), and the rotating gear (34) is meshed with a circumferential drive tooth block (310).

4. A sand washing mechanism for mining machinery according to claim 3, characterized in that, A through groove (37) is provided in the hexagonal column (21). A central rod (36) is rotatably connected in the through groove (37). Fixed folding rods (38) are fixedly connected to both sides of the central rod (36). The fixed folding rods (38) are fixedly connected to the outside of the sand washing seat (11). A driving disc (39) is fixedly connected to the side wall of the central rod (36). A circumferential driving tooth block (310) is fixedly connected to one side of the driving disc (39).

5. A sand washing mechanism for mining machinery according to claim 3, characterized in that, The L-shaped baffle (23) is provided with a vibration component (4), which includes a vibration groove (41) opened in the L-shaped baffle (23). A vibration plate (42) is slidably connected in the vibration groove (41), and the vibration plate (42) and the L-shaped baffle (23) are connected by a vibration spring (43).

6. A sand washing mechanism for mining machinery according to claim 5, characterized in that, The hexagonal column (21) has an impact groove (44) inside. A fixed shaft (45) is rotatably connected inside the impact groove (44). A rotating shaft (47) is rotatably connected to the side wall of the fixed shaft (45) via a torsion spring (46). An impact rod (48) and a drive lever (410) are fixedly connected to the side wall of the rotating shaft (47). An impact block (49) is fixedly connected to one side of the impact rod (48). The impact block (49) is used to strike the vibrating plate (42). The other end of the drive lever (410) abuts against the tooth groove of the rotating gear (34).

7. A sand washing mechanism for mining machinery according to claim 5, characterized in that, A cleaning component (5) is provided inside the L-shaped baffle (23). The cleaning component (5) is used to clean sand and gravel. The cleaning component (5) includes a water storage tank (51) opened inside the L-shaped baffle (23). A rotating groove (52) and a nozzle inlet (56) are opened at the bottom of the L-shaped baffle (23). A T-shaped rotating tube (53) is rotatably connected inside the rotating groove (52). The bottom of the T-shaped rotating tube (53) is fixedly connected to the top of the T-shaped circular plate (33). A spray nozzle (55) is opened on the side wall of the T-shaped rotating tube (53). A rotating tube inlet (54) is provided at the top of the T-shaped rotating tube (53). A high-pressure nozzle (57) is installed at the bottom of the nozzle inlet (56).

8. A sand washing mechanism for mining machinery according to claim 7, characterized in that, An intermittent pressurization component (6) is provided inside the L-shaped baffle (23). The intermittent pressurization component (6) is used to adjust the size of the rotating pipe inlet (54) and the nozzle inlet (56). The intermittent pressurization component (6) includes a baffle (61) provided inside the water storage tank (51). A connecting port (62) is provided inside the baffle (61). The baffle (61) is fixedly connected to the side wall of the T-shaped slide plate (63). The T-shaped slide plate (63) is slidably connected to the water storage tank (51) and the slide groove (64). The slide groove (64) is opened inside the L-shaped baffle (23).

9. A sand washing mechanism for mining machinery according to claim 7, characterized in that, The water storage tank (51) is connected to the main water washing pipe (15) through a water supply component (7). The water supply component (7) includes an installation plate (76) fixedly connected to one side of the hexagonal column (21). An installation groove (71) is provided in the installation plate (76). A water supply disc (72) is rotatably connected in the installation groove (71). A water collection tank (73) is provided in the water supply disc (72). The main water washing pipe (15) and the water collection tank (73) are connected through a water supply channel (74). The water supply channel (74) is installed on the side wall of the main water washing pipe (15). The water collection tank (73) and the water storage tank (51) are connected through a connecting hole (75). The connecting hole (75) is opened on the side wall of the installation plate (76).

10. A sand washing method for mining machinery, based on a sand washing mechanism for mining machinery as described in any one of claims 1-9, characterized in that, It also includes the following steps: S1: The sand and gravel are fed into the inclined material feeding seat (12), and the water washing main pipe (15) and water washing branch pipe (16) spray simultaneously to remove the floating mud and impurities on the surface of the sand and gravel before entering the sand washing seat (11). S2: Turn on the drive motor (24), which drives the two sets of hexagonal columns (21) and L-shaped baffles (23) to rotate synchronously through the drive belt (26) and transmission belt (27); S3: The mixing component (3) turns the sand and gravel over, and the vibration component (4) generates high-frequency vibration to loosen the impurities; S4: The water supply component (7) supplies water to the water storage tank (51), and after being pressurized by the intermittent pressurization component (6), it is sprayed by dual high-pressure jets to flush the sand and gravel without dead angles. S5: Clean sand and gravel are discharged from the sand washing device (1), and impurities are filtered through the filter plate (13) and discharged from the drain outlet (14).

Images