A quartz sand pickling purification device with a side wall multi-point acid injection nozzle

Abstract

The application discloses a quartz sand pickling purification device with a side wall multi-point acid injection nozzle, and relates to the field of quartz sand pickling. The application can guarantee sufficient contact of acid liquid by starting the rotation and agitation of the mixing mechanism to destroy the static accumulation of particles, can form an initial acid liquid covering network by simultaneously starting a plurality of nozzles arranged in space, can make the first arc-shaped frame rotate and drive the movable rod to reciprocate along the groove of the center block, and can further make the nozzle superimpose a transverse swing track at a fixed point, so that the spraying coverage is expanded from a point to a dynamic scanning surface, the acting area is increased, the jet angle is changed to strengthen the flushing and replacement of the internal pores of the particle accumulation layer, the rotation amount is converted into the push-pull displacement of the movable rod through gear meshing transmission, the static deflection angle of the nozzle is adjusted, and the acid liquid is accurately pointed to a high concentration area or a dead area.

Description

Technical Field

[0001] This invention relates to the field of quartz sand pickling technology, specifically to a quartz sand pickling and purification device with multi-point acid injection nozzles on the side wall. Background Technology

[0002] The core function of quartz sand acid washing is to selectively remove the iron oxide film, associated alkali metal minerals such as siliceous mica, and fluid inclusions trapped in microcracks from the surface of quartz particles through chemical dissolution. Its direct effect is a significant reduction in the content of impurities such as Fe2O3, Al2O3, and K2O, washing the sand from yellowish-brown to pure white, thereby meeting the stringent purity requirements of raw materials for photovoltaic glass, optical devices, and high-purity crucibles.

[0003] However, in existing technologies, when quartz sand is statically deposited on a screen layer, a large number of dead zones and pore bubbles are formed between the particles. The acid solution can only slowly penetrate by gravity and cannot reach the surface of the inner particles, resulting in local under-etching or over-etching. The purity fluctuates significantly between batches. Fixed nozzles can only form point-like or ring-shaped wet areas. Improper spray spacing will produce dry or overlapping areas. The acid solution cannot form a continuous and uniform liquid phase mass transfer network. The reaction interface is updated slowly, and the concentration polarization phenomenon is severe. Summary of the Invention

[0004] The purpose of this invention is to provide a quartz sand acid washing and purification device with a multi-point acid injection nozzle on the side wall, so as to solve the problem mentioned in the background art that when quartz sand is statically piled on the screen layer, a large number of stacking dead zones and pore bubbles are formed between the particles, and the acid solution can only slowly penetrate by gravity and is difficult to reach the surface of the inner particles.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a quartz sand acid washing and purification device with multi-point acid injection nozzles on the sidewall, comprising a purification box and mounting plates fixedly connected to both sides of its top, a screen installed inside the purification box, two lifting components fixedly connected to the top of the mounting plates, a lifting frame fixedly connected to one side of the two lifting components, a drive mechanism installed at the top of the middle part of the lifting frame, and a movable mechanism installed inside the lifting frame, a swing mechanism being driven to one side of the movable mechanism, and a mixing mechanism installed inside the purification box; The moving mechanism includes a second rotating rod and a second rack. A second gear is meshed with one side of the second rack, and a second slide rail is slidably connected to the bottom of the second rack. Multiple third gears are fixedly connected to the outer surface of the second rotating rod, and a fourth gear is meshed with one side of the third gear. The swing mechanism includes a third mounting frame fixedly connected to the lifting frame. A support block is rotatably connected to the center of the inner side of the third mounting frame. A first arc-shaped frame is rotatably connected to the inner side of the third mounting frame. A second arc-shaped frame is provided on one side of the first arc-shaped frame. The second arc-shaped frame is rotatably connected to the third mounting frame. A central block is slidably connected to one side of the support block. A movable rod is slidably connected to the inner side of the central block. One end of the movable rod passes through the second arc-shaped frame and the first arc-shaped frame in sequence, and the movable rod is slidably connected to the second arc-shaped frame and the first arc-shaped frame. A spray nozzle is fixedly installed on one end of the movable rod.

[0006] Preferably, the drive mechanism includes a second mounting bracket fixedly connected to the lifting frame, a third drive motor mounted inside the second mounting bracket, a crank fixedly connected to the output end of the third drive motor, a threaded rod rotatably connected inside the crank, and a moving block threadedly connected to the outer surface of the threaded rod.

[0007] Preferably, the bottom end of the moving block passes through the crank and is fixedly connected to the drive block, a swing plate is provided below the crank, the bottom of the swing plate is fixedly connected to a second rack, and the swing plate is slidably connected to the drive block.

[0008] Preferably, a central rod is fixedly connected to the end of the second gear shaft, the bottom end of the central rod is fixedly connected to the first arc frame, the end of the fourth gear shaft is fixedly connected to the second arc frame, a linkage rod is fixedly connected between multiple second racks, and the bottom of the second slide rail is fixedly connected to the lifting frame.

[0009] Preferably, the mixing mechanism includes a first mounting bracket fixedly connected to the side wall of the purification box, a first slide rail symmetrically fixedly connected to the inner side of the first mounting bracket, a lead screw rotatably connected to the center of the inner side of the first mounting bracket, a second drive motor mounted on one side of the first mounting bracket, and the output end of the second drive motor fixedly connected to the lead screw.

[0010] Preferably, a movable frame is threadedly connected to the outer surface of the first mounting frame, the movable frame is slidably connected to the first mounting frame, a first mixing frame is rotatably connected to the side wall of the movable frame, a first gear is fixedly connected to the outer surface of one end of the first mixing frame, a first rack is meshed below the first gear, the first rack is fixedly connected to the inner wall of the purification box, and a swinging component is installed on the purification side.

[0011] Preferably, the oscillating assembly includes a mounting block fixedly connected to the inner wall of the purification chamber, a first rotating rod rotatably connected to the middle of the mounting block, and a second eccentric gear fixedly connected to one end of the first rotating rod.

[0012] Preferably, a reciprocating block is slidably connected to the inner side of the mounting block, and a first eccentric gear and a third eccentric gear are rotatably connected to one side of the reciprocating block.

[0013] Preferably, the second eccentric gear is meshed with the first eccentric gear and the third eccentric gear on both sides, and the shaft ends of the first eccentric gear and the third eccentric gear are fixedly connected to the second mixing frame. A first drive motor is installed on one side of the swing assembly, and the output end of the first drive motor is fixedly connected to the first rotating rod.

[0014] Preferably, the reciprocating block has a movable groove in the middle, the first rotating rod is located inside the movable groove, the second mixing frame is located below the screen, and the first mixing frame is located above the screen.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. In this invention, by activating the mixing mechanism to rotate and stir, the static accumulation of particles is broken to ensure sufficient contact of the acid. Simultaneously, multiple nozzles arranged in space are activated to form an initial acid coverage network. The driving mechanism causes the first arc frame to rotate and drives the movable rod to slide back and forth along the groove of the central block. This causes the nozzle to superimpose a lateral swing trajectory at a fixed point, expanding the spray coverage from a point shape to a dynamic scanning surface shape, increasing the effective area, and using the change of jet angle to enhance the scouring and replacement of the pores inside the particle accumulation layer. At the same time, the rotation amount is converted into the push-pull displacement of the movable rod through gear meshing transmission, adjusting the static deflection angle of the nozzle, so that the acid is accurately directed to the high concentration area or dead zone.

[0016] 2. In this invention, the crank is started by a third drive motor, and the crank makes a full circle of uniform circular motion around its rotation center. The drive block at the end of the crank is embedded in the internal slide structure of the swing plate. The drive block moves along the circular trajectory of the crank end and slides relative to the swing plate, converting the rotational motion into a dynamic pushing and pulling force on the swing plate. The swing plate is fixedly connected to the second rack, and the force is transmitted to the second rack, causing it to make linear guided motion along the second slide rail, forming a stable linear reciprocating motion. The linear displacement of the second rack drives the second gear to achieve alternating rotational motion through the meshing relationship between the gear teeth and the second gear. The central rod transmits the rotational motion, and the first arc frame reciprocates around the axis of the central rod as the swing center. After being transmitted through the transmission chain, it drives the nozzle to achieve continuous reciprocating motion, completing the full-coverage dynamic spraying operation. When the threaded rod is manually adjusted to rotate, the moving block moves linearly along the threaded rod. The change in the position of the moving block changes the rotation radius of the drive block relative to the center of the crank. This adjustment directly determines the sliding stroke of the drive block in the swing plate groove, thus affecting the pushing and pulling force distance.

[0017] 3. In this invention, the first drive motor drives the lead screw to rotate, pushing the moving frame to slide linearly along the first slide rail, and driving the fixed first mixing frame to translate. At the same time, the first gear meshes with the fixed first rack, forcing the first mixing frame to rotate around the axis during translation, thereby enhancing the shearing and turbulence effect of the stirring blades on the material. The second drive motor drives the first rotating rod and the second eccentric gear to rotate. The gear meshes with the first eccentric gear and the third eccentric gear respectively, and applies a periodic radial force. Due to the single degree of freedom constraint of the reciprocating block in the guide groove of the mounting block, the force forces the first eccentric gear and the third eccentric gear to drive the reciprocating block to make a periodic linear reciprocating motion in the horizontal direction. This combined motion of rotation and oscillation is transmitted to the second mixing frame, causing it to perform circumferential stirring and lateral tumbling below the screen. The two mechanisms work together to enhance the uniformity and removal efficiency of the pickling reaction and prevent material deposition. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a quartz sand acid washing and purification device with multi-point acid injection nozzles on the sidewall according to the present invention. Figure 2 This is a partial structural schematic diagram of a quartz sand acid washing and purification device with a multi-point acid injection nozzle on the side wall according to the present invention. Figure 3 This is a partially disassembled structural diagram of a quartz sand acid washing and purification device with multi-point acid injection nozzles on the sidewall according to the present invention. Figure 4 This is a schematic diagram of the moving mechanism and driving mechanism in a quartz sand acid washing and purification device with a multi-point acid injection nozzle on the side wall according to the present invention. Figure 5 This is a schematic diagram showing the disassembled structure of the oscillating mechanism in a quartz sand acid washing and purification device with a multi-point acid injection nozzle on the side wall according to the present invention. Figure 6 This is a schematic diagram showing the disassembled structure of the drive mechanism in a quartz sand acid washing and purification device with a multi-point acid injection nozzle on the side wall according to the present invention. Figure 7 This is a schematic diagram of the mixing mechanism in a quartz sand acid washing and purification device with a multi-point acid injection nozzle on the side wall according to the present invention. Figure 8 This is a schematic diagram of the oscillating component in a quartz sand acid washing and purification device with a multi-point acid injection nozzle on the side wall according to the present invention.

[0019] In the diagram: 1. Purification box; 2. Mounting plate; 3. Mixing mechanism; 31. First rack; 32. First gear; 33. First mixing frame; 34. Second mixing frame; 341. First drive motor; 35. Moving frame; 36. Lead screw; 37. First mounting frame; 371. First slide rail; 38. Swing assembly; 381. Mounting block; 382. Reciprocating block; 383. First eccentric gear; 384. Movable groove; 385. Second eccentric gear; 386. Third eccentric gear; 387. First rotating rod; 39. Second drive motor; 4. Lifting assembly; 41. Lifting... 5. Lowering frame; 51. Movable mechanism; 52. Second rack; 53. Second gear; 54. Center rod; 55. Second slide rail; 56. Third gear; 57. Second rotating rod; 68. Fourth gear; 79. Linkage rod; 60. Drive mechanism; 61. Third drive motor; 62. Swing plate; 63. Crank; 64. Threaded rod; 65. Moving block; 66. Drive block; 77. Second mounting frame; 78. Swing mechanism; 79. Third mounting frame; 70. Support block; 71. First arc frame; 72. Second arc frame; 73. Center block; 74. Movable rod; 75. Nozzle. Detailed Implementation

[0020] 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.

[0021] Example 1: Refer to Figure 1-5 As shown: A quartz sand acid washing and purification device with multi-point acid injection nozzles on the side wall includes a purification box 1 and mounting plates 2 fixedly connected to its top two sides. A screen is installed inside the purification box 1. Two lifting components 4 are fixedly connected to the top of the mounting plates 2. A lifting frame 41 is fixedly connected to one side of the two lifting components 4. A drive mechanism 6 is installed at the top of the middle part of the lifting frame 41, and a movable mechanism 5 is installed inside the lifting frame 41. A swing mechanism 7 is connected to one side of the movable mechanism 5. A mixing mechanism 3 is installed inside the purification box 1. The active mechanism 5 includes a second rotating rod 55 and a second rack 51. A second gear 52 is meshed with one side of the second rack 51, and a second slide rail 53 is slidably connected to the bottom of the second rack 51. Multiple third gears 54 are fixedly connected to the outer surface of the second rotating rod 55, and a fourth gear 56 is meshed with one side of the third gear 54. The swing mechanism 7 includes a third mounting frame 71 fixedly connected to the lifting frame 41. A support block 72 is rotatably connected to the center of the inner side of the third mounting frame 71. A first arc-shaped frame 73 is rotatably connected to the inner side of the third mounting frame 71. A second arc-shaped frame 74 is provided on one side of the first arc-shaped frame 73. The second arc-shaped frame 74 is rotatably connected to the third mounting frame 71. A center block 75 is slidably connected to one side of the support block 72. A movable rod 76 is slidably connected to the inner side of the center block 75. One end of the movable rod 76 passes through the second arc-shaped frame 74 and the first arc-shaped frame 73 in sequence, and the movable rod 76 is slidably connected to the second arc-shaped frame 74 and the first arc-shaped frame 73. A spray nozzle 77 is fixedly installed on one end of the movable rod 76.

[0022] In this embodiment, during the acid washing and purification treatment of quartz sand, the quartz sand to be acid-washed is introduced into the purification tank 1 and evenly distributed above the screen layer inside. Then, the mixing mechanism 3 is activated to perform a rotating agitation action, thereby disrupting the static packing state between the quartz sand particles and ensuring sufficient contact between the particle surface and the acid solution, thus guaranteeing the uniformity and reaction rate of the acid washing reaction. During this acid washing process, multiple nozzles 77 distributed on the inner wall or top cover of the purification tank 1 are simultaneously activated. Each nozzle 77 is arranged in a preset spatial configuration to achieve multi-point synchronous spraying of acid solution, forming an initial acid solution coverage network.

[0023] Driven by the power output of the drive mechanism 6, the first arc-shaped frame 73 rotates around its own center of rotation. This rotation directly acts on the movable rod 76 that it is in kinetic contact with. The circumferential motion of the first arc-shaped frame 73 applies a periodic tangential thrust to the movable rod 76, forcing one end of the movable rod 76 to slide back and forth along the transverse groove on the surface of the central block 75. This constraint causes the movable rod 76 to produce a regular oscillating motion in the transverse plane, thereby driving the nozzle 77 installed at its end to superimpose a transverse oscillating trajectory on top of the fixed spray point. As a result, the acid spray coverage area expands from a static point distribution to a dynamic scanning area distribution, significantly increasing the actual contact area between the acid and the quartz sand particle group. At the same time, the change in jet angle caused by the oscillation enhances the scouring and replacement effect on the pores inside the particle accumulation layer, ultimately effectively improving the contact efficiency and purification uniformity of the acid washing reaction.

[0024] Furthermore, several third gears 54 are fixedly mounted axially on the second rotating rod 55. Their rotational power source can be driven by an external electric actuator, which in turn drives each third gear 54 to rotate synchronously. The teeth of the third gears 54 maintain constant meshing with the fourth gear 56, thus the meshing torque is transmitted to the first arc-shaped frame 73 connected to it via the fourth gear 56. At this time, the total rotation of the first arc-shaped frame 73 will act on the movable rod 76 again, causing its end to push and pull against the center block 75, thereby forcing the center block 75 to slide linearly relative to the support block 72. This sliding displacement changes the position of the support fulcrum of the movable rod 76, thereby adjusting the angle of the nozzle 77 at the end of the movable rod 76.

[0025] Through the aforementioned multi-level linkage adjustment mechanism, not only can the instantaneous spraying range be expanded by dynamic oscillation during the pickling process, but the static deflection angle of the nozzle 77 can also be actively adjusted according to real-time process requirements, enabling the acid jet to precisely target high-concentration reaction areas or inefficient flow dead zones. The synergistic effect of these two mechanisms enhances the chemical erosion efficacy of the acid on impurities on the quartz sand surface and improves the liquid-phase mass transfer conditions within the particle layer. Therefore, based on multi-point spraying, the pickling kinetic environment is further optimized, significantly improving the quality and batch consistency of the pickling-purified finished product.

[0026] Example 2: Figures 2-6 As shown, the drive mechanism 6 includes a second mounting bracket 67 fixedly connected to the lifting frame 41. A third drive motor 61 is mounted inside the second mounting bracket 67. A crank 63 is fixedly connected to the output end of the third drive motor 61. A threaded rod 64 is rotatably connected to the inner side of the crank 63. A moving block 65 is threadedly connected to the outer surface of the threaded rod 64. The bottom end of the moving block 65 passes through the crank 63 and is fixedly connected to a drive block 66. A swing plate 62 is provided below the crank 63. The bottom of the swing plate 62 is fixedly connected to a second rack 51, and the swing plate 62 is slidably connected to the drive block 66. A central rod 521 is fixedly connected to the shaft end of the second gear 52. The bottom end of the central rod 521 is fixedly connected to the first arc frame 73. The shaft end of the fourth gear 56 is fixedly connected to the second arc frame 74. Linkage rods 57 are fixedly connected between multiple second racks 51. The bottom of the second slide rail 53 is fixedly connected to the lifting frame 41.

[0027] In this embodiment, when the control lever 76 and the nozzle 77 perform reciprocating oscillating spraying operations, the third drive motor 61 starts, and the crank 63 makes a full circle of uniform speed around its center of rotation. The drive block 66 at the end of the crank 63 is simultaneously embedded in the internal slide structure of the oscillating plate 62. Therefore, during the rotation of the crank 63, the drive block 66 not only moves along the circular trajectory with the end of the crank 63, but also slides relative to the crank 63 within the oscillating plate 62, thereby converting the rotational motion of the crank 63 into a dynamic pushing and pulling force on the oscillating plate 62.

[0028] The swing plate 62 is fixedly connected to the second rack 51. When the swing plate 62 moves under the alternating pushing and pulling action of the drive block 66, the force is directly transmitted to the second rack 51, forcing the second rack 51 to perform linear guided motion along the second slide rail 53 it is fitted with. As the crank 63 rotates continuously at a uniform speed, the direction of the force exerted by the drive block 66 on the swing plate 62 changes periodically, thereby causing the swing plate 62 and the second rack 51 fixedly connected to it to form a stable linear reciprocating motion under the constraint of the second slide rail 53. During this reciprocating motion, the linear displacement of the second rack 51 drives the second gear 52 to achieve alternating clockwise and counterclockwise rotational motion through the meshing relationship between its teeth and the second gear 52.

[0029] When the second gear 52 rotates alternately in both directions, the central rod 521 transmits this rotational motion. Driven by the central rod 521, the first arc-shaped frame 73 reciprocates around the axis of the central rod 521. This oscillating displacement is transmitted to the movable rod 76 via the transmission chain, ultimately driving the nozzle 77 to continuously oscillate according to the same oscillation pattern, thereby completing the dynamic spraying operation that covers the entire target area.

[0030] The threaded rod 64 is manually adjusted to rotate. When the threaded rod 64 rotates, the moving block 65 moves linearly along the threaded rod 64. When the crank 63 is continuously rotating, the change in the position of the moving block 65 will change the rotation radius of the drive block 66 relative to the center of the crank 63.

[0031] The adjustment of the rotation radius directly determines the sliding stroke of the drive block 66 within the groove of the swing plate 62, thus affecting the distance of the push and pull force acting on the swing plate 62. When the rotation radius increases, the single reciprocating stroke of the swing plate 62 increases, resulting in an increase in the linear displacement amplitude of the second rack 51 and a corresponding expansion of the alternating rotation angle of the second gear 52. Ultimately, the swing angle range between the movable rod 76 and the nozzle 77 widens. Conversely, when the rotation radius decreases, the swing stroke shortens, and the swing range of the nozzle 77 narrows. Therefore, by precisely controlling the number of rotations and direction of the threaded rod 64, the swing amplitude of the nozzle 77 can be steplessly adjusted, thereby flexibly optimizing the spray coverage width and uniformity.

[0032] Example 3: According to Figure 7 and Figure 8As shown, the mixing mechanism 3 includes a first mounting bracket 37 fixedly connected to the side wall of the purification chamber 1. A first slide rail 371 is symmetrically fixedly connected to the inner side of the first mounting bracket 37. A lead screw 36 is rotatably connected to the center of the inner side of the first mounting bracket 37. A second drive motor 39 is mounted on one side of the first mounting bracket 37, and the output end of the second drive motor 39 is fixedly connected to the lead screw 36. A movable frame 35 is threadedly connected to the outer surface of the first mounting bracket 37, and the movable frame 35 is slidably connected to the first mounting bracket 37. A first mixing frame 33 is rotatably connected to the side wall of the movable frame 35. A first gear 32 is fixedly connected to the outer surface of one end of the first mixing frame 33. A first rack 31 is meshed below the first gear 32 and is fixedly connected to the inner wall of the purification chamber 1. A swing assembly 38 is mounted on one side of the purification chamber 1. The swing assembly 38 includes a mounting block 381 fixedly connected to the inner wall of the purification chamber 1. A first rotating rod 387 is rotatably connected to the middle of the mounting block 381, and a second eccentric gear 385 is fixedly connected to one end of the first rotating rod 387. A reciprocating block 382 is slidably connected to the inner side of the mounting block 381. A first eccentric gear 383 and a third eccentric gear 386 are rotatably connected to one side of the reciprocating block 382. The second eccentric gear 385 is meshed with the first eccentric gear 383 and the third eccentric gear 386 on both sides. A second mixing frame 34 is fixedly connected to the shaft ends of the first eccentric gear 383 and the third eccentric gear 386. A first drive motor 341 is mounted on one side of the swing assembly 38. The output end of the first drive motor 341 is fixedly connected to the first rotating rod 387. A movable groove 384 is opened in the middle of the reciprocating block 382. The first rotating rod 387 is located inside the movable groove 384. The second mixing frame 34 is located below the screen, and the first mixing frame 33 is located above the screen.

[0033] In this embodiment, the rotational power output by the second drive motor 39 is transmitted to the lead screw 36 via a transmission mechanism, driving the lead screw 36 to rotate continuously. The helical motion of the lead screw 36 is converted into linear displacement of the moving frame 35 along its axial direction. The displacement path of the moving frame 35 is precisely guided by the first slide rail 371 to ensure stable movement. During the sliding process of the moving frame 35 along the slide rail, it is fixedly connected to the first mixing frame 33, thereby driving the first mixing frame 33 to move linearly synchronously. During this movement, the stirring blades provided on the outer surface of the first mixing frame 33 generate relative motion with the material being processed, thereby initiating the mechanical stirring action in the pickling operation.

[0034] As the first mixing frame 33 moves linearly, the first gear 32, fixedly mounted at its end or connecting part, moves synchronously. This first gear 32 maintains meshing with the first rack 31, which is fixedly mounted on the frame or base. When the first gear 32 translates with the moving frame 35, the first rack 31 applies a reverse meshing force to the first gear 32, forcing the first gear 32 to rotate around its own axis. Therefore, the first mixing frame 33 synchronously rotates around its axis during movement. This combined motion mode significantly enhances the shearing and turbulence effects of the stirring blades on the pickling solution and workpiece surface, thereby effectively improving the uniformity and removal efficiency of the pickling reaction.

[0035] On the other hand, after the first drive motor 341 is powered on and started, its output shaft drives the first rotating rod 387 connected to it to rotate continuously. A second eccentric gear 385 is fixedly mounted on the first rotating rod 387, and this gear rotates eccentrically with the rotating rod. During the rotation, the second eccentric gear 385 forms a transmission relationship with the first eccentric gear 383 and the third eccentric gear 386 respectively, thus rotating synchronously. However, due to the eccentric structure of the second eccentric gear 385, it not only transmits torque during rotation, but also applies a periodically changing radial displacement component to its meshing objects. This radial displacement causes the first eccentric gear 383 and the third eccentric gear 386 to dynamically offset each other.

[0036] The mounting base for the first eccentric gear 383 and the third eccentric gear 386 is a reciprocating block 382, ​​which is confined within the linear guide groove of the mounting block 381, possessing only a single degree of freedom linear motion capability along the guide groove direction. Based on this constraint, when the radial component of the force applied by the second eccentric gear 385 acts on the first eccentric gear 383 and the third eccentric gear 386, they cannot produce displacement in the vertical direction, but can only perform periodic linear reciprocating motion along the guide groove in the horizontal direction with the reciprocating block 382. That is, while receiving the rotational motion driven by the second eccentric gear 385, the overall structure of the first eccentric gear 383 and the third eccentric gear 386 also oscillates left and right in the reciprocating direction with the reciprocating block 382.

[0037] The combination of the aforementioned rotational and linear reciprocating motion is ultimately transmitted to the second mixing frame 34. Located in the working area below the screen, the second mixing frame 34, driven by the combined motion, exhibits a trajectory that is a superposition of rotation and left-right oscillation. This combined motion mode ensures that the second mixing frame 34 uniformly agitates the material in the area below the screen in a circumferential direction, while also periodically laterally tumbling the material. This effectively prevents the deposition and accumulation of material below the screen, further optimizing the contact conditions between the pickling solution and the material, and improving the overall pickling process's treatment effect and quality consistency.

[0038] The device's operation and working principle are as follows: During quartz sand pickling, quartz sand is poured onto the screen in the purification tank 1 and stirred using the mixing mechanism 3 to achieve the pickling operation. During this process, multiple nozzles 77 spray acid at multiple points. The third drive motor 61 drives the crank 63 in a circular motion. The crank 63 drives the bottom drive block 66 to apply force to the swing plate 62, while the drive block 66 slides inside the swing plate 62. During this process, the swing plate 62 transmits force to the second rack 51, causing it to move under the constraint of the second slide rail 53. As the crank 63 continues to rotate, the swing plate 62 performs linear reciprocating motion, and the second rack 51 applies a meshing force to the second gear 52. During the continuous reciprocating linear motion of the second rack 51, the second gear 52 rotates alternately clockwise and counterclockwise, driving the central rod 521 to rotate, thereby causing the first arc-shaped frame 73 to swing. At this time, the first arc-shaped frame 73 applies a force to the movable rod 76, causing one end of the movable rod 76 to slide within the transverse groove on the surface of the central block 75, thereby allowing the movable rod 76 to swing in the transverse direction. This design expands the spraying range based on multi-point spraying, thus improving the pickling effect.

[0039] When the threaded rod 64 rotates, it drives the moving block 65 on its outer surface to move. Under the constraint of the crank 63, the driving block 66 at the bottom of the moving block 65 moves accordingly, thereby adjusting the rotation radius of the driving block 66 during the rotation of the crank 63, so as to control the magnitude of the force on the swing plate 62, and thus adjust the reciprocating distance of the swing plate 62, thereby controlling the swing range of the movable rod 76.

[0040] Furthermore, during the spraying process, the rotation of the second rotating rod 55 can drive multiple third gears 54. The rotation of the second rotating rod 55 can be controlled by an electric device or by manual damping. The third gears 54 are rotated as needed, and during the rotation, a meshing force is applied to the fourth gear 56. The fourth gear 56 transmits this force to the first arc-shaped frame 73, causing it to rotate and apply a pushing force to the movable rod 76. This causes one end of the movable rod 76 to move the central block 75, making the central block 75 slide relative to the support block 72. This adjusts the spray angle of the nozzle 77 at one end of the movable rod 76, allowing for adjustment as needed. This further enhances the multi-point spraying effect during the pickling process and improves the pickling purification quality.

[0041] The second drive motor 39 drives the lead screw 36 to rotate continuously, thereby controlling the movement of the moving frame 35. Guided by the first slide rail 371, the moving frame 35 moves together with the first mixing frame 33. During the movement of the first mixing frame 33, the stirring blades on its outer surface perform acid washing and stirring operations. At the same time, the first mixing frame 33 drives the first gear 32 to move during its movement, and the first rack 31 applies a reaction force to the first gear 32, causing it to rotate, thereby enabling the first mixing frame 33 to stir synchronously during its movement, further improving the acid washing effect.

[0042] The first drive motor 341 drives the first rotating rod 387 to rotate, which in turn drives the second eccentric gear 385 to rotate eccentrically, and simultaneously drives the first eccentric gear 383 and the third eccentric gear 386 to rotate. Due to the eccentric movement of the second eccentric gear 385, the positions of the first eccentric gear 383 and the third eccentric gear 386 change. Meanwhile, restricted by the mounting block 381, the reciprocating block 382 can only move linearly. Therefore, the first eccentric gear 383 and the third eccentric gear 386 not only rotate under the drive of the second eccentric gear 385, but also move left and right together with the reciprocating block 382, ​​thereby causing the second mixing frame 34 to swing and rotate below the screen.

[0043] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A quartz sand acid washing and purification device with multi-point acid injection nozzles on the side wall, comprising a purification box (1) and mounting plates (2) fixedly connected to both sides of its top, wherein a screen is installed inside the purification box (1), and two lifting components (4) are fixedly connected to the top of the mounting plates (2), and a lifting frame (41) is fixedly connected to one side of the two lifting components (4), characterized in that: The lifting frame (41) is equipped with a drive mechanism (6) at the top of the middle part, and a movable mechanism (5) is installed on the inner side of the lifting frame (41). A swing mechanism (7) is connected to one side of the movable mechanism (5). A mixing mechanism (3) is installed on the inner side of the purification box (1). The active mechanism (5) includes a second rotating rod (55) and a second rack (51). A second gear (52) is meshed with one side of the second rack (51). A second slide rail (53) is slidably connected to the bottom of the second rack (51). A plurality of third gears (54) are fixedly connected to the outer surface of the second rotating rod (55). A fourth gear (56) is meshed with one side of the third gear (54). The swing mechanism (7) includes a third mounting frame (71) fixedly connected to the lifting frame (41). A support block (72) is rotatably connected to the center of the inner side of the third mounting frame (71). A first arc frame (73) is rotatably connected to the inner side of the third mounting frame (71). A second arc frame (74) is provided on one side of the first arc frame (73). The second arc frame (74) is rotatably connected to the third mounting frame (71). A center block (75) is slidably connected to one side of the support block (72). A movable rod (76) is slidably connected to the inner side of the center block (75). One end of the movable rod (76) passes through the second arc frame (74) and the first arc frame (73) in sequence. The movable rod (76) is slidably connected to the second arc frame (74) and the first arc frame (73). A spray nozzle (77) is fixedly installed on one end of the movable rod (76).

2. The quartz sand acid washing and purification device with multi-point acid injection nozzles on the sidewall according to claim 1, characterized in that: The drive mechanism (6) includes a second mounting bracket (67) fixedly connected to the lifting frame (41), a third drive motor (61) is mounted on the inner side of the second mounting bracket (67), a crank (63) is fixedly connected to the output end of the third drive motor (61), a threaded rod (64) is rotatably connected to the inner side of the crank (63), and a moving block (65) is threadedly connected to the outer surface of the threaded rod (64).

3. The quartz sand acid washing and purification device with multi-point acid injection nozzles on the sidewall according to claim 2, characterized in that: The bottom end of the moving block (65) passes through the crank (63) and is fixedly connected to the drive block (66). A swing plate (62) is provided below the crank (63). The bottom of the swing plate (62) is fixedly connected to a second rack (51), and the swing plate (62) is slidably connected to the drive block (66).

4. The quartz sand acid washing and purification device with multi-point acid injection nozzles on the sidewall according to claim 3, characterized in that: The second gear (52) has a central rod (521) fixedly connected to its shaft end. The bottom end of the central rod (521) is fixedly connected to the first arc frame (73). The shaft end of the fourth gear (56) is fixedly connected to the second arc frame (74). A linkage rod (57) is fixedly connected between multiple second racks (51). The bottom of the second slide rail (53) is fixedly connected to the lifting frame (41).

5. The quartz sand acid washing and purification device with multi-point acid injection nozzles on the sidewall according to claim 4, characterized in that: The mixing mechanism (3) includes a first mounting bracket (37) fixedly connected to the side wall of the purification box (1). A first slide rail (371) is symmetrically fixedly connected to the inner side of the first mounting bracket (37). A lead screw (36) is rotatably connected to the center of the inner side of the first mounting bracket (37). A second drive motor (39) is installed on one side of the first mounting bracket (37). The output end of the second drive motor (39) is fixedly connected to the lead screw (36).

6. The quartz sand acid washing and purification device with multi-point acid injection nozzles on the sidewall according to claim 5, characterized in that: The outer surface of the first mounting bracket (37) is threaded with a movable bracket (35), the movable bracket (35) is slidably connected to the first mounting bracket (37), the side wall of the movable bracket (35) is rotatably connected to a first mixing bracket (33), one end of the outer surface of the first mixing bracket (33) is fixedly connected to a first gear (32), the first gear (32) is meshed with a first rack (31) below the first gear (32), the first rack (31) is fixedly connected to the inner wall of the purification box (1), and a swing assembly (38) is installed on one side of the purification box (1).

7. The quartz sand acid washing and purification device with multi-point acid injection nozzles on the sidewall according to claim 6, characterized in that: The swing assembly (38) includes a mounting block (381) fixedly connected to the inner wall of the purification box (1). A first rotating rod (387) is rotatably connected to the middle of the mounting block (381), and a second eccentric gear (385) is fixedly connected to one end of the first rotating rod (387).

8. The quartz sand acid washing and purification device with multi-point acid injection nozzles on the sidewall according to claim 7, characterized in that: The mounting block (381) is slidably connected to a reciprocating block (382) on its inner side, and a first eccentric gear (383) and a third eccentric gear (386) are rotatably connected to one side of the reciprocating block (382).

9. The quartz sand acid washing and purification device with multi-point acid injection nozzles on the sidewall according to claim 8, characterized in that: The second eccentric gear (385) is meshed with the first eccentric gear (383) and the third eccentric gear (386) on both sides. The shaft ends of the first eccentric gear (383) and the third eccentric gear (386) are fixedly connected to the second mixing frame (34). The swing assembly (38) is equipped with a first drive motor (341) on one side. The output end of the first drive motor (341) is fixedly connected to the first rotating rod (387).

10. The quartz sand acid washing and purification device with multi-point acid injection nozzles on the sidewall according to claim 9, characterized in that: The reciprocating block (382) has a movable groove (384) in the middle, the first rotating rod (387) is located inside the movable groove (384), the second mixing frame (34) is located below the screen, and the first mixing frame (33) is located above the screen.

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