Quartz sand multi-layer impurity removing and cleaning device

Abstract

The application relates to the technical field of quartz sand cleaning, and particularly discloses a multi-layer impurity removal and cleaning device for quartz sand; the device comprises a cylindrical shell, a rubbing and washing assembly, a separation filter cylinder and a plurality of washing disc groups; the rubbing and washing assembly comprises a main shaft which is vertically rotatably installed; the separation filter cylinder is vertically rotatably installed at the lower end of the rubbing and washing assembly; a plurality of filtering layers are arranged in the separation filter cylinder; the plurality of washing disc groups are vertically distributed and fixed on the main shaft and located in the cylinder of the separation filter cylinder; the plurality of washing disc groups are communicated with the main shaft and coupled with the separation filter cylinder; the cleaning device provided by the application can fully clean the quartz sand through the multi-method multi-layer impurity removal and cleaning, centrifugal filtration and impurity guiding and separating modes, can reduce the water consumption, improve the water use efficiency, avoid the loss of fine sand, is beneficial to water circulation, greatly reduces the residue of impurities and guarantees the cleaning effect.

Description

Technical Field

[0001] This invention relates to the field of quartz sand cleaning technology, and specifically proposes a multi-layer impurity removal and cleaning device for quartz sand. Background Technology

[0002] Quartz sand, whose main component is silicon dioxide, is used as a raw material in the production of many industries such as glass, photovoltaic semiconductors, and ceramics. In order to obtain high-purity quartz sand to meet the requirements of raw materials, quartz sand needs to undergo multiple impurity removal processes such as screening, washing, and acid washing. Among them, washing quartz sand is to remove physical impurities such as clay and mud. Currently, equipment such as wheel bucket sand washing machines or spiral sand washing machines are commonly used to wash quartz sand. However, the existing equipment has the following shortcomings: 1. The existing washing equipment only relies on mechanically turning the quartz sand and rinsing or washing it with water. The water consumption is generally large, the washing and impurity removal method is simple, and impurities are easily left in the quartz sand. In addition, a lot of fine sand that meets the requirements of raw materials will be lost during the washing process.

[0003] 2. Existing cleaning equipment generally does not have a corresponding and effective impurity filtration and separation structure. On the one hand, the water used for cleaning cannot be recycled in time, and on the other hand, it will cause impurities to be unable to be fully separated from the quartz sand, which is the main reason for the residual impurities in the quartz sand. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a multi-layer quartz sand cleaning and impurity removal device, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention employs the following technical solution: a multi-layer impurity removal and cleaning device for quartz sand, comprising a cylindrical shell, a scrubbing assembly, a separating filter cartridge, and multiple rinsing disc assemblies; the scrubbing assembly includes a sliding hopper fixed inside the cylindrical shell, the sliding hopper comprising a sliding section in the shape of an inverted frustum, and multiple coaxially arranged scrubbing rings fixed on the inner wall of the sliding section, the scrubbing rings having a discontinuous structure; a tubular main shaft is installed vertically and rotatably through the sliding hopper, and a scrubbing bucket is fitted inside the sliding hopper, the scrubbing bucket being sleeved and assembled on the main shaft, the scrubbing bucket comprising multiple circumferentially distributed scrubbing elements, the scrubbing elements extending into the gaps between any adjacent scrubbing rings. The cylindrical shell has an isolation hopper fixed at the bottom to separate the inside and outside of the filter cartridge, and a connecting cover is fixed at the lower end of the sliding hopper. The filter cartridge is vertically rotated between the connecting cover and the isolation hopper via bearings. The filter cartridge has multiple filtration layers. Multiple rinsing discs are vertically distributed and fixed on the main shaft, and are all located inside the filter cartridge. The multiple rinsing discs are connected to the main shaft and are coupled to the filter cartridge. When the rinsing discs rotate with the main shaft, the quartz sand falls from the multiple rinsing discs in stages. Each rinsing disc synchronously sprays and washes the quartz sand, and the multiple rinsing discs together drive the multi-stage filtration layers of the filter cartridge to vibrate and clean them through the coupling structure.

[0006] Preferably, the separating filter cartridge includes a filter screen cylinder, an elastic cylinder frame, a filter cloth, and an outer hoop. The elastic cylinder frame is fitted and fixed on the filter screen cylinder, the filter cloth is fitted on the elastic cylinder frame, and the outer hoop has a split structure. The outer hoop is clamped on the elastic cylinder frame and clamps the filter cloth on the elastic cylinder frame. The outer hoop is fixed between the connecting cover and the isolation hopper by a bearing. The filter screen cylinder and the filter cloth are separated by the elastic cylinder frame to form a filtration chamber.

[0007] Preferably, the flushing disc assembly includes a fixed bushing sleeve fitted and fixed on the main shaft, a grid disc horizontally fixed at the bottom end of the fixed bushing, and the edge of the grid disc rotatingly contacting the inner wall of the filter cylinder; a plurality of nozzles communicating with the main shaft are circumferentially fixed on the fixed bushing sleeve.

[0008] Preferably, the lower end of the grid disc is coaxially provided with spaced-apart annular cams, and the top of the annular cams is fixed with multiple sets of connecting columns that are fixedly connected to the bottom end of the grid disc; multiple sets of contact rods are fixedly distributed along the axial direction on the elastic cylinder frame and are correspondingly matched with multiple rinsing disc sets; each set of contact rods includes multiple rods, and multiple contact rods in each set are distributed circumferentially along the elastic cylinder frame, penetrate the filter cylinder, and abut against the cam surface of the corresponding annular cam.

[0009] Preferably, the washing hopper further includes a mating hopper in the shape of an inverted frustum and a guide plate in the shape of an upright frustum. The guide plate is fixed to the top of the mating hopper, and the generatrix of the mating hopper is parallel to the generatrix of the sliding section. Multiple washing components are assembled on the mating hopper. Each washing component includes a roller seat plate fixed inside the mating hopper and multiple washing rollers rotatably mounted on the roller seat plate. The multiple washing rollers are distributed along the generatrix of the mating hopper, and each washing roller passes through the mating hopper and extends into the gap between adjacent washing rings. The mating hopper and the guide plate are jointly mounted on the main shaft.

[0010] Preferably, the bottom end of the elastic cylinder frame and the bottom end of the outer hoop cylinder are both circumferentially distributed with multiple material discharge windows arranged vertically and vertically, and the material discharge windows are connected to the filter chamber.

[0011] Preferably, the scrubbing ring has a split structure, and the split end of the scrubbing ring is provided with a notch for the quartz sand to slide down along the sliding section, and the notches of two adjacent scrubbing rings are staggered in the circumferential direction.

[0012] Preferably, the grid disc has multiple circumferentially distributed discharge holes, which extend radially along the grid disc, and the discharge holes in adjacent grid discs are staggered in the circumferential direction.

[0013] The above technical solution has the following advantages or beneficial effects: This invention provides a multi-layer impurity removal and cleaning device for quartz sand, which is equipped with a scrubbing assembly that fully agitates and scrubs the initially fed quartz sand. The scrubbing assembly can effectively remove impurities such as mud and sand, and can simultaneously control the amount of quartz sand fed into the device. A rotating separation filter cylinder is connected to the bottom of the scrubbing assembly, forming a relatively closed filtration channel. Inside the separation filter cylinder, multiple stages of rinsing discs are arranged vertically and sequentially with the main shaft of the scrubbing assembly. These multiple rinsing discs can further clean the quartz sand that has undergone initial cleaning by the scrubbing assembly. The cleaning process involves multi-layered cleaning of the quartz sand through spray washing, improving the thoroughness of the cleaning. During the cleaning process, the separator filter cartridge centrifugally separates impurities such as mud and sand, preventing residues in the quartz sand and excessive loss of fine sand. The separator filter cartridge also separates and cleans impurities through a filtration chamber that isolates and guides the flow, achieving preliminary filtration and purification of the cleaning water. This facilitates rapid water circulation and improves water usage efficiency. Furthermore, during cleaning, multiple rinsing discs, coupled with the separator filter cartridge, drive the cartridge to vibrate synchronously, maintaining high-efficiency filtration. In summary, the cleaning device provided by this invention employs multi-layered impurity removal, centrifugal filtration, and impurity-guided separation to thoroughly clean quartz sand. This reduces water consumption, improves water usage efficiency, prevents fine sand loss, facilitates water circulation, and significantly reduces impurity residue, ensuring effective cleaning. Attached Figure Description

[0014] The invention, its features, shape, and advantages will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings. Like reference numerals denote like parts throughout the drawings, which are not intentionally drawn to scale; the focus is on illustrating the spirit of the invention.

[0015] Figure 1 This is a three-dimensional structural diagram of a multi-layer quartz sand cleaning and impurity removal device.

[0016] Figure 2 This is a top view of a multi-layer quartz sand cleaning and impurity removal device.

[0017] Figure 3 yes Figure 2 Sectional view of AA.

[0018] Figure 4 yes Figure 3 A magnified view of a section at point B in the middle.

[0019] Figure 5 This is a three-dimensional structural diagram of a multi-layer quartz sand cleaning and impurity removal device after disassembling the cylindrical shell.

[0020] Figure 6This is a three-dimensional structural diagram of the scrubbing assembly (without the connecting cover) and multiple flushing discs assembled together.

[0021] Figure 7 This is a three-dimensional sectional view of the scrubbing basin.

[0022] Figure 8 This is a top view of the assembly structure of the scrubbing ring and the sliding hopper.

[0023] Figure 9 This is a three-dimensional sectional view of the separator filter cartridge.

[0024] Figure 10 This is a three-dimensional structural diagram of the elastic tube frame.

[0025] Figure 11 This is a three-dimensional structural diagram of the outer hoop.

[0026] In the diagram: 1. Cylindrical shell; 11. Isolation hopper; 12. Discharge hopper; 2. Washing assembly; 21. Sliding hopper; 22. Washing ring; 221. Annular seat; 222. Brush; 23. Rotating frame; 24. Main shaft; 25. Washing hopper; 251. Matching hopper; 252. Guide top plate; 26. Washing components; 261. Roller seat plate; 262. Washing roller; 27. Connecting cover; 3. Separation filter cartridge; 31. Filter 32. Mesh cylinder; 32. Elastic cylinder frame; 321. Upper frame; 322. Lower frame; 323. Axial rib; 324. Annular rib; 325. Contact rod; 33. Filter cloth; 34. Outer hoop; 341. Upper clamp; 342. Lower clamp; 343. Cylindrical frame; 4. Washing disc assembly; 41. Fixed bushing; 42. Grille disc; 421. Material drop hole; 43. Nozzle; 44. Annular cam; 441. Connecting column. Detailed Implementation

[0027] 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 embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, a multi-layer impurity removal and cleaning device for quartz sand includes a cylindrical shell 1. A support base (not shown in the figure) is bolted to the bottom of the cylindrical shell 1. A scrubbing assembly 2 for agitating and scrubbing the quartz sand is assembled inside the cylindrical shell 1. The scrubbing assembly 2 includes a sliding hopper 21 embedded inside the cylindrical shell 1. The sliding hopper 21 includes a sliding section in the shape of an inverted frustum and two cylindrical sections welded to the upper and lower ends of the sliding section. An overlapping ring is welded to the top of the upper cylindrical section of the sliding hopper 21 and overlaps with the top of the cylindrical shell 1. The overlapping ring is bolted to the top of the cylindrical shell 1. A connecting cover 27 with an upright frustum shell structure is bolted to the lower cylindrical section of the sliding hopper 21. The connection position between the connecting cover 27 and the cylindrical section is sealed by a sealing gasket.

[0030] like Figure 3 , Figure 4 , Figure 6 , Figure 7 and Figure 8As shown, a seated bearing is bolted to the lap ring. A cross-shaped rotating frame 23 is welded to the inner ring of the seated bearing. A motor is vertically mounted on the outer wall of the cylindrical shell 1 via a motor mount. The seated bearing can be a bearing with a gear ring. The output shaft of the motor is equipped with a gear that meshes with the gear ring, thereby driving the gear ring through the motor and indirectly driving the rotating frame 23 to rotate. It should be noted that the above driving structure is not shown in the attached drawing. A main shaft 24 is mounted through the rotating frame 23. The main shaft 24 is a bottom-sealed... A closed tubular structure with a pipe joint at the top is provided. A flange is welded to the main shaft 24 near the pipe joint. The flange of the main shaft 24 is fixed to the top of the rotating frame 23 by bolts. The main shaft 24 runs vertically through the central axis of the sliding hopper 21. A scrubbing hopper 25 is provided inside the sliding hopper 21. The scrubbing hopper 25 includes a mating hopper 251 in the shape of an inverted frustum shell and a guide plate 252 in the shape of an upright frustum shell. The guide plate 252 is fixed to the top of the mating hopper 251 by bolts. The generatrix of the mating hopper 251 is connected to the top of the sliding hopper 251. The generatrices of the sliding section are arranged in parallel (both the hopper 251 and the sliding section are frustum structures, so their generatrices are frustum generatrices; the geometric generatrices are clearly defined and will not be described in detail here), ensuring a uniform clearance between the hopper 251 and the sliding section; the hopper 251 and the guide plate 252 are mounted together on the main shaft 24 via a key fit, and the top of the guide plate 252 is bolted to the bottom of the rotating frame 23; multiple [unclear] are evenly distributed along the generatrice direction on the inner wall of the sliding section. The washing ring 22 is coaxially arranged and includes an annular seat 221 with a T-shaped cross section. Brushes 222 are fixed on both sides of the annular seat 221 and the brushes 222 extend along the annular direction of the annular seat 221. The washing ring 22 has a split structure. The split end of the washing ring 22 is provided with a notch for the quartz sand to slide down the sliding section. The notches of two adjacent washing rings 22 are staggered in the circumferential direction, so that the quartz sand can be intercepted step by step by multiple washing rings 22 when it slides down the sliding section, thus prolonging the sliding time. The hopper 251 is equipped with six rubbing components 26 evenly arranged in the circumferential direction. Each rubbing component 26 includes a roller seat plate 261 fixed inside the hopper 251 by bolts, and multiple rubbing rollers 262 rotatably mounted on the roller seat plate 261. The multiple rubbing rollers 262 are evenly distributed along the generatrix of the hopper 251. Each rubbing component 26 has multiple rubbing rollers 262 extending through the hopper 251 into the gaps between adjacent rubbing rings 22, with the uppermost rubbing roller 262 extending into the gap between the largest radius rubbing ring 22 and the sliding hopper 21. It should be noted that the silica sand is primarily composed of silicon dioxide, which has high hardness. The bristles of the brush 222 and the rubbing rollers 262 are in direct frictional contact with the silica sand, making them highly susceptible to wear. To control wear and extend service life, in this embodiment, all bristles can be made of any material, including hard alloy filaments, tungsten carbide coated filaments, ceramic composite coated filaments, or other wear-resistant filaments.

[0031] like Figure 3 , Figure 5 , Figure 9 and Figure 10 As shown, an overlapping ring is welded to the inside of the cylindrical shell 1 near the bottom. An isolation hopper 11 is fixed to the upper end of the overlapping ring by bolts. Bearings are welded to both the connecting cover 27 and the isolation hopper 11. A separation filter cylinder 3 is vertically mounted between the connecting cover 27 and the isolation hopper 11 via two bearings. The separation filter cylinder 3 is coaxially arranged with the main shaft 24. The separation filter cylinder 3 includes a filter screen cylinder 31, an elastic cylinder frame 32, a filter cloth 33, and an outer hoop cylinder 34. The filter screen cylinder 31 has uniformly distributed mesh holes. The mesh hole size is smaller than the particle size of the quartz sand, and the mesh hole size allows most of the sand fragments to be removed from the quartz sand to pass through. The main body of the elastic cylinder frame 32 is made of rubber material. To enhance the structural strength and wrapping support, a metal skeleton matching the overall frame structure is built into the elastic cylinder frame 32. The metal skeleton is not shown in the attached figure. The metal skeleton is made of spring steel material. The elastic cylinder frame 32 is fitted as a whole. Mounted on the filter cylinder 31, the elastic cylinder frame 32 includes an upper frame 321 and a lower frame 322, both of which are annular structures. Multiple axial ribs 323 are vertically connected between the upper frame 321 and the lower frame 322, and the multiple axial ribs 323 are evenly distributed around the circumference. Multiple vertically evenly distributed annular ribs 324 are connected in series among the multiple axial ribs 323. The upper frame 321 and the lower frame 322 are fixed to the filter cylinder 31 by screws. The axial ribs 323 are all close to the outer wall of the filter cylinder 31. In order to prevent the annular ribs 324 from blocking the normal fall of impurities such as mud and sand filtered by the filter cylinder 31 in the vertical direction, a gap is maintained between the annular ribs 324 and the outer wall of the filter cylinder 31. The outer wall of the elastic cylinder frame 32 is a flat cylindrical surface. The filter cloth 33 is made of nylon fabric and is cylindrical in shape. The filter cloth 33 is fitted onto the elastic cylinder frame 32 and seals the side wall of the elastic cylinder frame 32.

[0032] like Figure 3 , Figure 5 , Figure 9 , Figure 10 and Figure 11As shown, for ease of installation, the outer hoop 34 has a split structure, including an upper clamp 341, a lower clamp 342, and a cylindrical frame 343. The cylindrical frame 343 is welded between the upper clamp 341 and the lower clamp 342, and has multiple circumferentially evenly distributed, arc-shaped windows. The upper clamp 341 and the lower clamp 342 are respectively fitted onto the upper frame 321 and the lower frame 322, and are fixed with screws. In addition, the upper clamp 341 is fixed to the bearing on the connecting cover 27 by bolts, and the lower clamp 342 is fixed to the bearing on the isolation hopper 11 by bolts. Here, the connecting cover 27 enables communication between the upper port of the filter cylinder 31 and the lower port of the sliding hopper 21, and forms an isolation from the outside of the separating filter cylinder 3. The bottom of the isolation hopper 11 is fixed with a discharge hopper 12 by bolts. The hopper 11 provides a transitional connection between the lower end of the filter cylinder 31 and the discharge hopper 12, and the hopper 11 separates the filter cylinder 31 from the inside and outside. To improve the isolation effect, the two bearings at the connecting cover 27 and the hopper 11 can be existing sealed bearings. The filter cloth 33 is clamped between the elastic cylinder frame 32 and the outer cylinder 34 through the outer hoop 34. The filter cylinder 31 and the filter cloth 33 cooperate to form a two-stage filtration. The filter cylinder 31 and the filter cloth 33 are separated by the elastic cylinder frame 32 to form a filtration chamber. In order to allow the mud, sand and other impurities from the cleaning filter to be discharged downward from the filtration chamber, multiple material discharge windows are evenly distributed circumferentially on the lower frame 322 and the lower clamp 342. The material discharge windows have a fan-shaped hole structure and are connected to the filtration chamber. Four waste discharge ports are evenly distributed circumferentially at the bottom of the hopper 11.

[0033] It should be further explained that the quartz sand after cleaning is finally discharged from the discharge hopper 12. In order to automatically convey and discharge the quartz sand and separate it from the water at the same time, in this embodiment, an existing auger conveyor can be installed at the discharge hopper 12. The lower end of the auger conveyor is sealed and connected to the discharge hopper 12. The auger conveyor is arranged at an angle. The upper end of the auger conveyor is higher than the cylindrical shell 1. The quartz sand can be conveyed and carried out at an angle upward by the auger conveyor. After being conveyed to a position higher than the water level of the multi-layer quartz sand cleaning device of the present invention, the water can be gradually drained. At the same time, the water flows back into the multi-layer quartz sand cleaning device of the present invention.

[0034] In this embodiment, in order to drive the separation filter cartridge 3 to rotate as a whole, a motor can be installed at the bottom of the isolation bucket 11 through a fixing frame. The motor output shaft extends into the cylindrical shell 1. The installation point between the motor and the isolation bucket 11 is sealed by a sealing gasket or the like. A gear is fitted at the end of the motor output shaft. The bearing fitted on the isolation bucket 11 can be a bearing with a gear ring, and the gear ring meshes with the gear, thereby driving the separation filter cartridge 3 to rotate as a whole. It should be noted that the above driving structure is an optional driving method and is not shown in the accompanying drawings.

[0035] In this invention, to improve water efficiency and save water, and to facilitate the recycling of water used for cleaning quartz sand, a water tank for storing cleaning water and a settling tank for collecting impurities such as mud and sand can be installed in conjunction with the multi-layer impurity removal and cleaning device for quartz sand. The bottom of the settling tank can be a sloping structure, thereby utilizing gravity to cause mud and sand to settle towards the lower end of the sloping bottom. The side of the settling tank near the concentrated settling point is connected to four waste outlets via a pipeline with four branch pipes, and the pipeline is equipped with an electric butterfly valve to control the on / off state of the four branch pipes. In addition, a water outlet can be opened on the cylindrical shell 1, which is located below the sliding hopper 21 and near the top of the separating filter cylinder 3. In this embodiment, the... The outlet is specifically set at a position at approximately the same height as the connection between the hopper 21 and the connecting cover 27; a circulation pipeline is connected to the water tank, and the outlets on the side of the settling tank away from the centralized settling and the cylindrical shell 1 are all connected to the circulation pipeline through pipelines. A circulation pump connected to the circulation pipeline can be installed in the water tank, so that the water after settling in the settling tank and the water filtered by the separation filter cartridge 3 can be collected into the water tank through the circulation pipeline. The water tank is also provided with two water inlets for external water injection. Both water inlets are equipped with electric butterfly valves for on / off control, and one of the water inlets is also connected to a high-pressure water pump. The pipe joint of the main shaft 24 is connected to a pipeline through a rotary joint, and this pipeline is connected to the outlet of the high-pressure water pump.

[0036] like Figure 3 , Figure 4 and Figure 6 As shown, the main shaft 24 extends downward into the filter cylinder 31. Four rinsing disc assemblies 4 are mounted on the main shaft 24, evenly distributed along the axial direction. All four rinsing disc assemblies 4 are located inside the filter cylinder 31. Each rinsing disc assembly 4 includes a fixed bushing 41 keyed to the main shaft 24. The main shaft 24 has pre-marked installation positions for the four rinsing disc assemblies 4 according to positioning dimensions. The fixed bushing 41 has rubber sealing sleeves at both ends that seal against the main shaft 24. Two nozzles 43 are symmetrically welded onto the fixed bushing 41. The main shaft 24 has openings for contact with the four rinsing discs. Group 4 has four sets of pipe holes, with two pipe holes in each set. After the fixed bushing 41 is positioned and installed, the two pipe holes in each set are connected to the two corresponding nozzles 43. A grid plate 42 is horizontally welded to the bottom of the fixed bushing 41. The edge of the grid plate 42 is in rotatable contact with the inner wall of the filter cylinder 31. The grid plate 42 has multiple circumferentially evenly distributed discharge holes 421. The discharge holes 421 are long rectangular holes. The long side of the discharge holes 421 extends radially along the grid plate 42. The discharge holes 421 in adjacent grid plates 42 are staggered at equal intervals in the circumferential direction.

[0037] like Figure 3 , Figure 4 and Figure 6As shown, a spaced-apart annular cams 44 are coaxially arranged at the lower end of the grid disc 42. Four sets of connecting columns 441, which are welded to the bottom end of the grid disc 42, are welded to the top of the annular cams 44. The gap between the annular cams 44 and the grid disc 42 is used to avoid the material discharge hole 421. Four sets of contact rods 325, which are correspondingly matched with the four washing disc groups 4, are fixedly distributed along the axial direction on the elastic cylinder frame 32. Each set of contact rods 325 has multiple rods, and the multiple contact rods 325 are embedded and fixed one-to-one on multiple axial ribs 323. The contact rods 325 penetrate the filter cylinder 31 radially. A ball is movably embedded at one end of the contact rod 325 extending into the filter cylinder 31. The contact rods 325 maintain a tight rolling contact with the cam surface of the corresponding annular cam 44 through the ball. The washing disc group 4 achieves a coupling connection with the separation filter cylinder 3 through the contact and cooperation between the annular cams 44 and the contact rods 325, which is used for vibration transmission. In the field of mechanical engineering, a coupled structure refers to a mechanical assembly that connects two or more independent moving parts, systems, or functional modules through specific mechanical components or physical actions to achieve motion transmission, force transmission, or energy / signal interaction.

[0038] This invention provides a multi-layer impurity removal and cleaning device for quartz sand, the working process of which is described below.

[0039] Before cleaning, close the electric butterfly valves controlling the four waste outlets, open the electric butterfly valve at the water inlet in the water tank that is not connected to the high-pressure water pump, and keep the electric butterfly valve at the other water inlet closed. Fill the multi-layer quartz sand cleaning device of this invention to full water level through the open water inlet. After filling, both the main shaft 24 and the separation filter cartridge 3 are in a rotating state. Here, the main shaft 24 drives the scrubbing bucket 25 to rotate and simultaneously drives the four rinsing discs 4 to rotate. The main shaft 24 maintains a medium speed rotation. Under the combined effect of centrifugal force from the rotation of the grid disc 42 and the water flow resistance simultaneously experienced by the grid disc 42, the quartz sand is ensured to move on the grid disc 42 at the corresponding speed so that it can pass through the discharge hole 421. The speed of the main shaft 24 can be reasonably selected and set after actual testing. The separation filter cartridge 3 mainly uses centrifugal force to clean the mud and sand. Since the separation is relatively fast compared to the main shaft 24, it actually maintains high-speed rotation. During the rotation, the flushing disc assembly 4 has a vibration cleaning effect on the separation filter cartridge 3 through the coupling structure. The vibration only needs to maintain an effective cleaning function and should avoid being too intense in order to delay the failure of the elasticity of the elastic cylinder frame 32 due to fatigue, thereby extending the service life of the elastic cylinder frame 32. In this embodiment, the main shaft 24 and the separation filter cartridge 3 rotate in the same direction. Therefore, the rotation speed of the separation filter cartridge 3 relative to the flushing disc assembly 4 is the difference in rotation speed between the two, which plays a certain role in suppressing and weakening the vibration.

[0040] During cleaning, the original direct water inlet is closed, while another inlet is opened. Water is pumped into the main shaft 24 via a high-pressure water pump through this inlet. The water flows through the main shaft 24 and is sprayed outwards from each nozzle 43, forming a rotating water flow. Additionally, the waste outlet is opened. It is important to note that the water flow rate inside the main shaft 24 and the water flow rate in the main pipeline of the waste outlet must be kept approximately consistent. This can be achieved by installing existing flow control valves in the pipeline system to balance and regulate the flow rate. The quartz sand to be cleaned is continuously conveyed by a conveyor belt to the top of the multi-layer quartz sand cleaning device of this invention. The added quartz sand falls directly onto the end face of the guide plate 252. As the main shaft 24 drives the guide plate 252 to rotate, the quartz sand disperses and falls into the sliding hopper 21, directly into the gap between the uppermost scrubbing ring 22 and the sliding hopper 21, where it is scrubbed. The bucket 25 rotates with the main shaft 24, and the multiple scrubbing parts 26 rotate around the main shaft 24 accordingly. At this time, the scrubbing roller 262 rotates and disturbs the quartz sand. The quartz sand will come into frictional contact with the brush 222 of the scrubbing ring 22 or the scrubbing roller 262, and there will be frictional contact between the quartz sand and the quartz sand. The combined effect of these frictions produces a scrubbing effect, which makes the mud and sand mixed in the quartz sand, especially the various adhering impurities including clay on the surface of the quartz sand, fall off quickly. During the revolution and disturbance process, the scrubbing roller 262 will also push the quartz sand to move circumferentially. When the quartz sand moves to the gap of the scrubbing ring 22, it will automatically fall to the next level scrubbing ring 22. This allows the multiple scrubbing rings 22 to intercept the quartz sand layer by layer, so as to prolong the time when the quartz sand slides in the sliding bucket 21, so as to ensure the full removal of mud and sand and other impurities, and at the same time, effectively control the washing and dropping rhythm of the quartz sand.

[0041] After being washed by the scrubbing assembly 2, the mud, sand, and other impurities, as well as the quartz sand, pass through the connecting cover 27 and fall onto the uppermost grid plate 42. The rotation of the main shaft 24 causes the quartz sand to move on the grid plate 42. As the two nozzles 43 rotate with the main shaft 24, they form a rotating water flow in the plane, which can further wash and clean the quartz sand. The sprayed high-pressure water will randomly move the quartz sand and push the mud, sand, and other impurities away from the center of the grid plate 42, promoting the rapid separation of mud and sand from the quartz sand and passing through the filter screen cylinder 31. During the movement, the quartz sand will randomly pass through any of the drop holes 421 and fall onto the next level grid plate 42 for another wash. With the step-by-step interception of multiple washing plate groups 4, the falling time of the quartz sand in the filter screen cylinder 31 is extended, and it can be fully washed to ensure the separation of mud and sand. After being scrubbed by the scrubbing assembly 2 and washed step-by-step by the four washing plate groups 4, the quartz sand completes multi-layer impurity removal and cleaning.

[0042] During rotation, the separator filter cartridge 3 uses centrifugal force to move the mud and sand away from its center. The filter screen 31 traps the quartz sand inside, while mud and other impurities pass through it and enter the filtration chamber. The filter cloth 33 further filters the mud and sand, allowing some fine dirt to pass through and enter the outside of the separator filter cartridge 3, thus achieving initial filtration of the washed water. Most of the remaining mud and sand is trapped in the filtration chamber and discharged through the discharge port via the lower material outlet. The separator filter cartridge 3 effectively guides and separates the separated mud and sand, preventing excessive residue of mud and other impurities in the discharged quartz sand. Furthermore, the filtration guides and diverts the flow... The function is to quickly separate impurities, thereby obtaining cleaning water that can be recycled in a timely manner and improving the water recycling efficiency in the water tank. As the quartz sand falls through the four grid discs 42 in stages, due to the speed difference between the separation filter cylinder 3 and the main shaft 24, the contact rod 325 will roll relative to the cam surface of the annular cam 44 through the ball bearings. The annular cam 44 will reciprocate to touch the contact rod 325, and the contact rod 325 will indirectly drive the elastic cylinder frame 32 to undergo elastic deformation and generate reciprocating vibration. The vibration will promptly clean the mud and sand and other impurities attached to the filter screen cylinder 31 and the filter cloth 33, ensuring the filtration performance of the filter screen cylinder 31 and the filter cloth 33, and promoting the timely and effective separation of mud and sand and other impurities.

[0043] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0044] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," "installed," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0045] The preferred embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and the devices and structures not described in detail should be understood as being implemented in a manner common to the art; any possible variations and modifications made by those skilled in the art without departing from the technical solution of the present invention, or equivalent embodiments with equivalent changes, do not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A quartz sand multi-layer impurity removal and cleaning device, characterized in that, The application relates to a quartz sand washing and separating device. The device comprises a cylindrical shell, a rubbing assembly, a separating filter cylinder, and a plurality of washing disc groups. The rubbing assembly comprises a sliding hopper fixed in the cylindrical shell, the sliding hopper comprises a sliding section in the shape of an inverted circular table, a plurality of coaxial rubbing rings are fixed on the inner wall of the sliding section, the rubbing rings are in a broken structure, a main shaft in the shape of a tubular structure is vertically rotatably arranged in the sliding hopper, a rubbing hopper is arranged in the sliding hopper, the rubbing hopper is sleeved on the main shaft, the rubbing hopper comprises a plurality of circumferentially distributed rubbing parts, and the rubbing parts extend to the gaps between any adjacent rubbing rings. The separating filter cylinder is fixed between the connecting cover and the isolation hopper through a bearing, and a plurality of filtering layers are arranged in the separating filter cylinder. The washing disc groups are vertically distributed, are sleeved on the main shaft, and are located in the cylinder of the separating filter cylinder.

2. The quartz sand multi-layer impurity removal and cleaning device according to claim 1, characterized in that: When the washing disc groups rotate with the main shaft, the quartz sand falls from the washing disc groups, each washing disc group sprays and washes the quartz sand synchronously, and the plurality of washing disc groups drive the plurality of filtering layers of the separating filter cylinder to vibrate and clean through the coupling structure.

3. The quartz sand multi-layer impurity removal and cleaning device according to claim 2, characterized in that: The separating filter cylinder comprises a filter screen cylinder, an elastic cylinder frame, filter cloth, and an outer hoop cylinder, the elastic cylinder frame is sleeved on the filter screen cylinder, the filter cloth is sleeved on the elastic cylinder frame, the outer hoop cylinder is in a half-split structure, the outer hoop cylinder is clamped on the elastic cylinder frame, and the outer hoop cylinder clamps the filter cloth on the elastic cylinder frame.

4. The quartz sand multi-layer impurity removal and cleaning device according to claim 3, characterized in that: The outer hoop cylinder is fixed between the connecting cover and the isolation hopper through a bearing, and a filtering cavity is formed between the filter screen cylinder and the filter cloth through the elastic cylinder frame.

5. The quartz sand multi-layer impurity removal and cleaning device according to claim 1, characterized in that: The washing disc group comprises a fixed shaft sleeve sleeved on the main shaft, a grid disc horizontally fixed at the bottom end of the fixed shaft sleeve, and a plurality of nozzles circumferentially distributed on the fixed shaft sleeve and communicated with the main shaft.

6. The quartz sand multi-layer impurity removal and cleaning device according to claim 2, characterized in that: The grid disc is coaxially provided with annular cams arranged at intervals at the lower end, the top end of the annular cam is fixed with a plurality of connecting columns fixedly connected with the bottom end of the grid disc.

7. The quartz sand multi-layer impurity removal and cleaning device according to claim 1, characterized in that: A plurality of touch rods are axially distributed on the elastic cylinder frame and correspondingly arranged in the plurality of washing disc groups, each group of touch rods comprises a plurality of touch rods, the plurality of touch rods in each group are circumferentially distributed on the elastic cylinder frame, penetrate the filter screen cylinder, and abut against the cam surface of the corresponding annular cam. The rubbing hopper further comprises a matching hopper in the shape of an inverted circular table shell and a guide material top disc in the shape of a right circular table shell, the guide material top disc is fixed at the top end of the matching hopper, the generatrix of the matching hopper is arranged in parallel with the generatrix of the sliding section, a plurality of rubbing parts are assembled on the matching hopper, the rubbing parts comprise roller seat plates fixed in the matching hopper and a plurality of rubbing rollers rotatably arranged on the roller seat plates, the plurality of rubbing rollers are distributed along the generatrix direction of the matching hopper, and the plurality of rubbing rollers penetrate the matching hopper one by one and extend into the gaps between adjacent rubbing rings, and the matching hopper and the guide material top disc are sleeved on the main shaft. The bottom end of the elastic cylinder frame and the bottom end of the outer hoop cylinder are circumferentially provided with a plurality of material falling windows arranged in a one-up-and-one-down mode, and the material falling windows are communicated with the filtering cavity. The rubbing ring is in a half-split broken structure, a gap for the quartz sand to slide along the sliding section is arranged at the broken port of the rubbing ring, and the gaps of adjacent two rubbing rings are distributed in a circumferential staggered mode.

8. The quartz sand multi-layer impurity removal and cleaning device according to claim 3, characterized in that: The grid disc is provided with a plurality of blanking holes distributed in the circumferential direction, the blanking holes extend along the radial direction of the grid disc, and the blanking holes in the upper and lower adjacent grid discs are distributed in the circumferential direction in a staggered manner.

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