A device for cleaning and leveling a salt pond for salt mining

Abstract

The present application relates to salt mining technical field, especially to a kind of salt mining salt pond pollution cleaning and leveling device, comprising: frame and the track wheel being symmetrically arranged on both sides of frame, the separation device for salt sand separation is arranged on the frame, the precipitation device connected with separation device is arranged outside the frame, the guide-out device communicated with precipitation device is arranged on the side of frame away from separation device;Frame is provided with mounting bracket below, cleaning assembly is rotatably installed on the mounting bracket, and the cleaning assembly includes rotating wheel, a plurality of first cleaning block and a plurality of second cleaning block;Rotating wheel is rotatably installed on the mounting bracket at both ends, a plurality of first cleaning block is spirally fixedly connected on the outer surface of rotating wheel, and a plurality of second cleaning block is spirally fixedly connected on the outer surface of rotating wheel.The present application realizes salt pond bottom agglomerate crushing, material directional collection, dirt negative pressure extraction, pond bottom instant leveling, three-phase separation whole process single completion of salt brine sludge.

Description

Technical Field

[0001] This invention relates to the field of salt mining technology, and in particular to a device for cleaning and leveling salt ponds. Background Technology

[0002] The production of raw salt, such as sea salt and lake salt, mainly relies on open-air salt ponds to complete the evaporation and crystallization of brine. The flatness and cleanliness of the bottom of the salt ponds are the core basic conditions for ensuring the yield, quality, and continuity of raw salt production. During long-term continuous salt production, a large amount of impurities, silt, residual salt clumps, and mixed salt precipitates from the brine will continuously accumulate inside the salt ponds. The bottom of the salt ponds is prone to problems such as unevenness, local collapse, and uneven height differences.

[0003] In China, saltworks primarily employ traditional manual labor-assisted, simple machinery for cleaning and leveling salt ponds. Cleaning mainly relies on manual labor using hand-held rakes and scoops to remove silt and impurities from the pond bottom, requiring significant manpower and resources, and resulting in long work cycles. This approach is unsuitable for the routine, large-scale maintenance needs of large salt ponds. Existing mechanized cleaning and leveling equipment is mostly modified from general-purpose river and lake cleaning equipment or farmland leveling equipment. Such equipment is bulky, and its walking mechanism easily crushes and damages the original seepage prevention structure of the salt pond, leading to bottom damage and leakage. Furthermore, the operation process is prone to problems such as residual salt compaction and clumping, and secondary accumulation of impurities, failing to meet the production requirements for refined salt pond maintenance.

[0004] In summary, the current salt pond cleaning and leveling operations lack integrated equipment that can simultaneously crush and collect sludge while efficiently pumping and separating it. This makes it impossible to achieve refined, mechanized, and closed-loop maintenance of salt ponds, which restricts the large-scale continuous production of modern salt fields and seriously hinders the efficient, stable, and standardized production of modern salt fields. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a salt pond cleaning and leveling device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A salt pond cleaning and leveling device includes: a frame and tracked wheels symmetrically arranged on both sides of the frame; a separation device for separating salt and sand is provided on the frame; a sedimentation device connected to the separation device is provided on the outside of the frame; and an outlet device connected to the sedimentation device is provided on the side of the frame away from the separation device. A mounting frame is provided below the vehicle frame, and a cleaning component is rotatably mounted on the mounting frame. The cleaning component includes a rotating wheel, a plurality of first cleaning blocks, and a plurality of second cleaning blocks. The rotating wheel is rotatably mounted on the mounting frame at both ends. Multiple first cleaning blocks are spirally fixedly connected to the outer surface of the rotating wheel to form a first cleaning ring. Multiple second cleaning blocks are spirally fixedly connected to the outer surface of the rotating wheel to form a second cleaning ring. The length of the second cleaning block is greater than the length of the first cleaning block. The first cleaning ring and the second cleaning ring are arranged in parallel, and the second cleaning block is arranged between two adjacent first cleaning blocks. The first and second cleaning rings form a set of cleaning teeth. The rotating wheel is symmetrically provided with two sets of cleaning teeth. When the rotating wheel rotates, the cleaning teeth drive the salt and sand to move from both sides of the rotating wheel toward the center.

[0007] Preferably, the mounting bracket includes two rotating arms and a mounting frame, the two rotating arms are symmetrically and fixedly connected to the bottom surface of the frame, and the mounting frame is fixedly installed at the bottom end of the two rotating arms.

[0008] Preferably, a limiting annular groove is formed in the middle of the rotating wheel, the limiting annular groove is located between two sets of cleaning teeth, and a suction device is provided above the limiting annular groove for extracting salt sand upwards.

[0009] Preferably, the suction device includes an arc-shaped baffle, a suction baffle, and two connecting pipes. The suction baffle is fixedly connected to the side of the mounting frame near the limiting ring groove. The arc-shaped baffle is fixedly connected to the suction baffle and sleeved on the upper side of the limiting ring groove, and is concentrically arranged with the limiting ring groove. The two connecting pipes are fixedly connected between the suction baffle and the separation device.

[0010] Preferably, a flattening component is provided below the mounting frame, which is used to flatten the bottom of the salt pond.

[0011] Preferably, the flattening assembly includes two spring columns and a pressure plate. The bottom of the mounting frame is provided with a compression space. The two spring columns are vertically fixed between the pressure plate and the top wall of the mounting frame. The pressure plate is located inside the compression space, and the horizontal position of the side of the pressure plate facing the rotating wheel is lower than that of the other side. Multiple guide grooves are provided on the pressure plate.

[0012] Preferably, two sets of extrusion assemblies are symmetrically arranged between the rotating wheel and the pressure plate, and the extrusion assemblies are used to drive the pressure plate to move up and down reciprocally.

[0013] Preferably, the extrusion assembly includes a connecting strip, a pressure block, and two pressure rods. The connecting strip is vertically fixed to the side of the pressure plate near the rotating wheel, the pressure block is fixedly connected to the upper end of the connecting strip near the rotating wheel, and the two pressure rods are symmetrically fixed to the two sides of the rotating wheel near the pressure block.

[0014] Preferably, the side of the pressure block near the pressure rod is configured as an inwardly concave arc shape, and the end of the pressure rod is configured as a spherical shape for contacting and compressing the pressure block.

[0015] Preferably, the separation device includes a separation box, a water pump, a sand discharge pipe, and a drain pipe. The separation box is fixedly installed on the vehicle frame, the water pump is fixedly installed on the upper end of the separation box and communicates with the connecting pipe, the sand discharge pipe is fixedly connected between the bottom of the separation box and the sedimentation device, and the drain pipe is fixedly connected to the bottom of the separation box.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention achieves the simultaneous completion of the entire process of salt pond bottom agglomeration, material directional collection, sludge negative pressure extraction, immediate bottom leveling, and three-phase separation of brine and sludge in a single operation through the sequential linkage of four modules: bidirectional spiral gathering of the cleaning component, negative pressure material extraction in the middle of the suction device, dynamic compaction of the extrusion linkage flattening mechanism, and online resource recovery of separation and sedimentation. This breaks the traditional operation mode of multiple manual processes and step-by-step mechanical equipment entry, and greatly improves the large-scale salt field maintenance capacity. 2. The alternating long and short double spiral cleaning teeth and the left and right symmetrical reverse spiral structure form a bidirectional inward pushing guiding force, which solves the problem of traditional rotary tillage equipment where the dirt is dispersed to both sides and secondary pollution of the bottom of the pool. The collection point is matched with the concentric limiting ring groove and the arc-shaped closed suction chamber, so the material is collected and concentrated, and there is no spillage during suction, which reduces the loss of raw salt production and improves the economic benefits of the salt field. 3. The tracked walking mechanism reduces ground pressure and protects the geomembrane of the salt pond; the lifting installation frame is suitable for different brine depths and different silt thicknesses; the spring buffer and spherical flexible transmission structure are suitable for the special substrate of the thin geomembrane of the salt pond, with low equipment failure rate, strong stability for long-term continuous operation, and suitable for large-scale and routine maintenance of various open-air crystallizing salt ponds of sea salt and lake salt. 4. The inclined pressure plate simultaneously performs three functions: leveling the bottom of the pool, guiding brine flow, and guiding materials in both directions. It uses the same set of extrusion drive mechanism to achieve integrated actions of blocking, pushing, and compacting materials, eliminating the need for additional auxiliary components, simplifying the overall structure, and improving leveling accuracy and raw salt recycling rate. Attached Figure Description

[0017] Figure 1 This is a front structural diagram of a salt pond cleaning and leveling device proposed in this invention; Figure 2 This is a schematic diagram of the back structure of a salt pond cleaning and leveling device proposed in this invention; Figure 3 This is a side view of the cleaning and leveling device for a salt pond proposed in this invention. Figure 4 This is a schematic diagram of the back structure of the mounting frame of the salt pond cleaning and leveling device proposed in this invention; Figure 5 This is a schematic diagram of the front structure of the mounting frame of the salt pond cleaning and leveling device proposed in this invention; Figure 6 This is a schematic diagram of the cleaning component structure of a salt pond cleaning and leveling device proposed in this invention; Figure 7 This is a schematic diagram of the suction device structure of a salt pond cleaning and leveling device proposed in this invention; Figure 8 This is a schematic diagram of the flattening component structure of a salt pond cleaning and leveling device proposed in this invention; Figure 9 This is a schematic diagram of the extrusion component structure of a salt pond cleaning and leveling device proposed in this invention; Figure 10 This is a schematic diagram of the extrusion state of the extrusion component of a salt pond cleaning and leveling device proposed in this invention.

[0018] In the diagram: 1. Chassis; 2. Track wheel; 3. Separation device; 31. Separation box; 32. Water pump; 33. Sand discharge pipe; 34. Drainage pipe; 4. Mounting frame; 41. Rotating arm; 42. Mounting frame; 5. Cleaning assembly; 51. Rotating wheel; 52. First cleaning block; 53. Second cleaning block; 6. Suction device; 61. Arc-shaped baffle; 62. Suction baffle; 63. Connecting pipe; 7. Flattening assembly; 71. Spring column; 72. Pressure plate; 8. Extrusion assembly; 81. Connecting strip; 82. Pressure block; 83. Pressure rod; 9. Sedimentation device; 10. Discharge device; 11. Limiting ring groove. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] The terms used in this invention, such as "upper," "lower," "left," "right," "middle," and "one," are merely for clarity of description and are not intended to limit the scope of the invention. Any changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0021] Reference Figures 1-10 A salt pond cleaning and leveling device includes: a frame 1 and tracked wheels 2 symmetrically arranged on both sides of the frame 1. A separation device 3 for separating salt and sand is provided on the frame 1. A sedimentation device 9 connected to the separation device 3 is provided on the outer side of the frame 1. An outlet device 10 connected to the sedimentation device 9 is provided on the side of the frame 1 away from the separation device 3. A mounting frame 4 is provided below the vehicle frame 1. A cleaning component 5 is rotatably mounted on the mounting frame 4. The cleaning component 5 includes a rotating wheel 51, a plurality of first cleaning blocks 52 and a plurality of second cleaning blocks 53. The rotating wheel 51 is rotatably mounted on the mounting bracket 4 at both ends. A plurality of first cleaning blocks 52 are spirally fixedly connected to the outer surface of the rotating wheel 51 to form a first cleaning ring. A plurality of second cleaning blocks 53 are spirally fixedly connected to the outer surface of the rotating wheel 51 to form a second cleaning ring. The length of the second cleaning block 53 is greater than the length of the first cleaning block 52. The first cleaning ring and the second cleaning ring are arranged in parallel, and the second cleaning block 53 is arranged between two adjacent first cleaning blocks 52. The first cleaning ring and the second cleaning ring form a set of cleaning teeth. The rotating wheel 51 is symmetrically provided with two sets of cleaning teeth. When the rotating wheel 51 rotates, the cleaning teeth drive the salt and sand to move from both sides of the rotating wheel 51 toward the center.

[0022] In the embodiments of the above technical solution, the existing modified rotary tillage equipment only uses a single-length rotary tillage tooth. The rotary tillage tooth has a unidirectional spiral structure. When rotating and breaking up the salt mud, it will push and spread the silt and broken salt to both sides of the equipment. The originally locally accumulated dirt is spread evenly to a larger area, causing secondary pollution of the clean pool bottom by impurities. The subsequent suction equipment cannot collect the dirt in a concentrated manner, and the amount of dirt residue is large. At the same time, the single-length tooth has limited crushing capacity, and the hardened residual salt cannot be fully crushed. The residue of the clumps forms a bulge on the bottom of the pool. The second cleaning block 53 is longer and can penetrate deep into the bottom of the pool to break up hardened residual salt clumps and silt layers. The first cleaning block 52 is shorter and is responsible for further crushing the pulverized salt clumps. The combination of long and short teeth achieves layered crushing, improving the crushing effect on the hardened salt layer. The two sets of symmetrical counter-rotating spiral cleaning teeth rotate synchronously, forming a material pushing force that pushes the material inward from both sides. All the scraped salt mud and clump fragments are concentrated at the middle limiting ring groove 11 of the rotating wheel 51, preventing the dirt from spreading to both sides. The cleaning teeth are continuously spirally arranged, and the gap between the first cleaning block 52 and the second cleaning block 53 is small. During the rotation, a directional vortex can be formed in the salt pool, thereby continuously transporting salt and sand without material jamming or accumulation, and ensuring continuous and stable crushing and collection operations.

[0023] The preferred technical solution in this embodiment is: Reference Figures 4-5 The mounting frame 4 includes two rotating arms 41 and a mounting frame 42. The two rotating arms 41 are symmetrically and fixedly connected to the bottom surface of the frame 1, and the mounting frame 42 is fixedly installed at the bottom end of the two rotating arms 41. Reference Figures 5-7The rotating wheel 51 has a limiting annular groove 11 in the middle, the limiting annular groove 11 is located between two sets of cleaning teeth, and a suction device 6 is provided above the limiting annular groove 11 for sucking up salt sand. The suction device 6 includes an arc-shaped baffle 61, a suction baffle 62, and two connecting pipes 63. The suction baffle 62 is fixedly connected to the side of the mounting frame 42 near the limiting ring groove 11. The arc-shaped baffle 61 is fixedly connected to the suction baffle 62 and is sleeved on the upper side of the limiting ring groove 11, and is concentrically arranged with the limiting ring groove 11. The two connecting pipes 63 are fixedly connected between the suction baffle 62 and the separation device 3. Concentric arc-shaped baffles 61 form a closed collection chamber, completely enclosing the collected salt mud in the middle. Negative pressure is concentrated on the material to avoid blockage of the suction pipe. The double connecting pipes 63 perform symmetrical suction, and the suction flow is uniform and without deviation. It is precisely matched with the bidirectional gathering structure of the cleaning component 5. The material is immediately extracted under negative pressure after collection, reducing material accumulation and overflow. The extracted material is directly sent into the separation box 31, achieving seamless connection between cleaning and material extraction.

[0024] Reference Figure 8 , Figure 9 and Figure 10 A flattening component 7 is provided below the mounting frame 42, which is used to flatten the bottom of the salt pond. The flattening assembly 7 includes two spring posts 71 and a pressure plate 72. A compression space is provided at the bottom of the mounting frame 42. The two spring posts 71 are vertically fixed between the pressure plate 72 and the top wall of the mounting frame 42. The pressure plate 72 is disposed inside the compression space, with one side of the pressure plate 72 facing the rotating wheel 51 positioned horizontally lower than the other side. Multiple guide grooves are provided on the pressure plate 72. Two sets of extrusion components 8 are symmetrically arranged between the rotating wheel 51 and the pressure plate 72. The extrusion components 8 are used to drive the pressure plate 72 to move up and down reciprocally. The extrusion assembly 8 includes a connecting strip 81, a pressure block 82, and two pressure rods 83. The connecting strip 81 is vertically fixedly connected to the side of the pressure plate 72 near the rotating wheel 51. The pressure block 82 is fixedly connected to the upper end of the connecting strip 81 near the rotating wheel 51. The two pressure rods 83 are symmetrically fixedly connected to the two sides of the rotating wheel 51 near the end of the pressure block 82. The pressure block 82 is configured with an inwardly concave arc shape on the side near the pressure rod 83, and the end of the pressure rod 83 is configured with a spherical shape for contacting and pressing the pressure block 82. The existing equipment has independent cleaning and leveling mechanisms. After cleaning, a second leveling is required. Furthermore, after the loose salt mud bottom is left to stand, local collapse and brine accumulation are likely to occur. Static flat plate compaction relies solely on its own weight, resulting in insufficient compaction strength and a soft, uneven bottom. Two spring columns 71 provide flexible floating support for the pressure plate 72. The pressure plate 72 can adapt to the slight height difference of the pool bottom. When it encounters hard residual salt protrusions, the spring columns 71 automatically retract to buffer and avoid rigid compression that scratches the pressure plate 72. The pressure plate 72 has a sloping structure with a lower front and a higher rear. During the movement, the front sloping surface can scrape off a small amount of residual floating mud after cleaning, and the rear flat surface completes the flat compaction. The plate surface is evenly opened with longitudinal guide grooves. When moving, the brine and fine salt slurry under the pressure plate 72 can be quickly discharged backward through the guide grooves, eliminating the water cushion buffer layer. The pressure plate 72 is directly attached to the bottom of the pool, improving the compaction density. The spring column 71 rebounds to keep the pressure plate 72 in continuous contact with the bottom of the pool, with no empty or leaking areas, meeting the flatness requirements of the salt pool crystallization operation. The extrusion assembly 8 fully reuses the rotational power of the rotating wheel 51 of the cleaning assembly 5, eliminating the need for additional motors and hydraulic cylinders as compaction power sources. This simplifies the overall power circuit, reduces equipment manufacturing costs, and significantly reduces potential failure points. There is a gap between the rotating wheel 51 and the mounting frame 4. The pressure rod 83 is longer than the second cleaning block 53, but it does not contact the mounting frame 4, preventing motion interference during rotation. The spherical pressure rod 83 makes point-to-surface contact with the concave arc bearing block 82, ensuring uniform force distribution and no stress concentration during transmission. The two sets of extrusion assemblies 8 are symmetrically arranged, with the left and right ends of the pressure plate 72 bearing force synchronously. There is no unilateral tilting during the pressing process, resulting in uniform force distribution during leveling. With each rotation of the rotating wheel 51, the two pressure rods 83 strike the bearing block 82 successively, and the pressure plate 72 completes two pressing compaction actions, forming high-frequency dynamic impact compaction. Compared with static gravity compaction, this improves the density of the salt mud at the bottom of the pool, making it less prone to later collapse and ridge formation. After the sludge components are crushed and collected, the crushed salt blocks and sludge slurry will continue to flow backward as the equipment moves. A large amount of fine salt mud will directly cover the bottom area of ​​the pool that has been leveled and compacted, forming a secondary accumulation of impurities and damaging the leveled pool surface. The equipment needs to be turned back for cleaning. When the extrusion component 8 presses down on the pressure block 82, the pressure plate 72 overcomes the elastic force of the spring column 71 and slowly moves downward to fit the bottom of the pool. The slow downward movement speed can prevent the pressure plate 72 from rushing down quickly and sweeping the crushed salt blocks to the rear leveling area. At the same time, the low-positioned slope on the front side of the pressure plate 72 forms a vertical material barrier. The suspended crushed salt and sludge slurry that have just been crushed by the cleaning component 5 and have not yet been completely sucked away by the suction device 6 will be intercepted and blocked by the inclined front wall, which greatly reduces the overflow and transfer of crushed salt blocks over the pressure plate 72 to the rear already compacted and leveled pool surface. When the spherical pressure rod 83 of the extrusion assembly 8 rotates away from the pressure block 82 along with the rotating wheel 51, the spring column 71 instantly releases the elastic potential energy stored in the compression, driving the pressure plate 72 to rise rapidly upward. The pressure plate 72 rebounds rapidly in the vertical direction, and the inclined surface at the front end of the pressure plate 72 rises upward simultaneously. The crushed salt blocks and silt mixture that have not been sucked up and are piled up on the inclined surface in front of the pressure plate 72 will be pushed forward in the opposite direction by the upward-lifted inclined surface, and flow back along the inclined surface to the collection area of ​​the suction device 6 corresponding to the limiting ring groove 11 in the middle of the rotating wheel 51, completing the secondary collection of crushed salt. The pressure plate 72 moves upward quickly without a slow buffering process, and the pushing impact force is sufficient. All the fine salt mud adhering to the guide groove and the gap of the plate 72 can be pushed forward without leaving any residue or accumulation below the pressure plate 72. The automatic and rapid lifting achieved by the spring force does not require additional power control and can be synchronized with the rotation cycle of the rotating wheel 51. After each pressing and compaction operation is completed, the pushing and recirculation action is immediately performed to continuously send the leaked salt fragments back to the suction point, improve the overall suction and recovery rate of materials, and reduce the waste of high-quality crystallized salt.

[0025] The extrusion component 8 rotates synchronously with the rotating wheel 51, periodically applying pressure to the bearing block 82, which is synchronized with the bidirectional gathering of the cleaning component 5 and the negative pressure material extraction of the suction device 6. The cleaning component 5 gathers the salt mud on both sides towards the center. When the pressure plate 72 slowly moves down, the inclined front wall intercepts the escaped broken salt, preventing the broken salt from entering the rear leveling area and damaging the flatness of the pool bottom, ensuring that the compacted area is clean and free of secondary impurities. After each compaction, the pressure plate 72 is quickly lifted, and the broken salt accumulated on the plate surface is pushed in the opposite direction to the collection chamber of the suction device 6. The material that was not taken away by the first suction is recycled for the second time, and the concentration of material collection is further improved. The inclined pressure plate 72 also has the triple functions of pool bottom leveling, brine diversion, and bidirectional material diversion. The same set of extrusion drive mechanism realizes the integrated action of blocking, pushing, and compacting, without the need for additional auxiliary components, simplifying the overall structure of the machine and improving the leveling accuracy and raw salt recycling rate.

[0026] Reference Figure 2 and Figure 3 The separation device 3 includes a separation box 31, a water pump 32, a sand discharge pipe 33, and a drain pipe 34. The separation box 31 is fixedly installed on the frame 1. The water pump 32 is fixedly installed on the upper end of the separation box 31 and is connected to the connecting pipe 63. The sand discharge pipe 33 is fixedly connected between the bottom of the separation box 31 and the sedimentation device 9. The drain pipe 34 is fixedly connected to the bottom of the separation box 31. Separation box 31 achieves three-phase separation of salt, silt, and brine. Clean brine is returned to the salt pond for recycling through drainage pipe 34. Silt and impurities are sent to sedimentation device 9 for static concentration through sand discharge pipe 33. Dried sludge is periodically discharged by outlet device 10 and transported for centralized treatment. It receives mixed materials transported by suction device 6 and separates them online in real time. Brine is recycled to save evaporation water. Recyclable crystalline salt is stored in separation box 31. Sludge is centrally treated to achieve resource recovery and harmless disposal of waste.

[0027] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A salt-pit clean-up levelling device for a salt mining salt pit, comprising: The vehicle frame and the tracked wheels symmetrically arranged on both sides of the vehicle frame are characterized in that the vehicle frame is provided with a separation device for separating salt and sand, a sedimentation device connected to the separation device is provided on the outer side of the vehicle frame, and an outlet device connected to the sedimentation device is provided on the side of the vehicle frame away from the separation device. A mounting frame is provided below the vehicle frame, and a cleaning component is rotatably mounted on the mounting frame. The cleaning component includes a rotating wheel, a plurality of first cleaning blocks, and a plurality of second cleaning blocks. The rotating wheel is rotatably mounted on the mounting frame at both ends. Multiple first cleaning blocks are spirally fixedly connected to the outer surface of the rotating wheel to form a first cleaning ring. Multiple second cleaning blocks are spirally fixedly connected to the outer surface of the rotating wheel to form a second cleaning ring. The length of the second cleaning block is greater than the length of the first cleaning block. The first cleaning ring and the second cleaning ring are arranged in parallel, and the second cleaning block is arranged between two adjacent first cleaning blocks. The first and second cleaning rings form a set of cleaning teeth. The rotating wheel is symmetrically provided with two sets of cleaning teeth. When the rotating wheel rotates, the cleaning teeth drive the salt and sand to move from both sides of the rotating wheel toward the center.

2. A device for cleaning and levelling a salt flat for salt extraction according to claim 1, characterized in that The mounting bracket includes two rotating arms and a mounting frame. The two rotating arms are symmetrically and fixedly connected to the bottom surface of the vehicle frame, and the mounting frame is fixedly installed at the bottom end of the two rotating arms.

3. A device for cleaning and leveling a salt pond for salt mining according to claim 1, characterized in that, A limiting annular groove is provided in the middle of the rotating wheel. The limiting annular groove is located between two sets of cleaning teeth. A suction device is provided above the limiting annular groove. The suction device is used to extract salt sand upwards.

4. A device for cleaning and levelling a salt flat for salt extraction according to claim 3, characterized in that The suction device includes an arc-shaped baffle, a suction baffle, and two connecting pipes. The suction baffle is fixedly connected to the side of the mounting frame near the limiting ring groove. The arc-shaped baffle is fixedly connected to the suction baffle and sleeved on the upper side of the limiting ring groove, and is concentrically arranged with the limiting ring groove. The two connecting pipes are fixedly connected between the suction baffle and the separation device.

5. A salt pond cleaning and leveling device according to claim 2, characterized in that, A flattening component is provided below the mounting frame, which is used to flatten the bottom of the salt pond.

6. The salt pond cleaning and leveling device according to claim 5, characterized in that, The flattening assembly includes two spring columns and a pressure plate. The bottom of the mounting frame is provided with a compression space. The two spring columns are vertically fixed between the pressure plate and the top wall of the mounting frame. The pressure plate is located inside the compression space, and the horizontal position of the side of the pressure plate facing the rotating wheel is lower than that of the other side. Multiple guide grooves are provided on the pressure plate.

7. A salt pond cleaning and leveling device according to claim 6, characterized in that, Two sets of extrusion assemblies are symmetrically arranged between the rotating wheel and the pressure plate. The extrusion assemblies are used to drive the pressure plate to move up and down reciprocally.

8. A salt pond cleaning and leveling device according to claim 7, characterized in that, The extrusion assembly includes a connecting strip, a pressure block, and two pressure rods. The connecting strip is vertically fixed to the side of the pressure plate near the rotating wheel. The pressure block is fixedly connected to the upper end of the connecting strip near the rotating wheel. The two pressure rods are symmetrically fixed to the two sides of the rotating wheel near the pressure block.

9. A salt pond cleaning and leveling device according to claim 8, characterized in that, The pressure block is designed with an inwardly concave arc shape on the side near the pressure rod, and the end of the pressure rod is designed with a spherical shape for contacting and compressing the pressure block.

10. A salt pond cleaning and leveling device according to claim 1, characterized in that, The separation device includes a separation box, a water pump, a sand discharge pipe, and a drain pipe. The separation box is fixedly installed on the vehicle frame. The water pump is fixedly installed on the upper end of the separation box and connected to the connecting pipe. The sand discharge pipe is fixedly connected between the bottom of the separation box and the sedimentation device. The drain pipe is fixedly connected to the bottom of the separation box.

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