Fine crushing and multi-stage purification process for preparation of ultra-pure quartz sand

Abstract

The invention belongs to the technical field of quartz sand processing, and particularly relates to an ultra-pure quartz sand preparation fine crushing and multi-stage purification process which comprises a machine body, a fixing frame is fixedly connected to the upper surface of the machine body, a feeding port is formed in the fixing frame, a first motor is arranged below the machine body, and a second motor is arranged below the machine body. The output end of the first motor is in driving connection with a crushing roller, auxiliary plates are fixedly connected to the two sides of the inner wall of the feeding opening, teeth staggered with teeth on the circumferential face of the crushing roller are fixedly connected to one sides of the auxiliary plates, and the auxiliary plates are used for assisting the crushing roller in crushing quartz sand; an elastically-connected screening plate is arranged in the purification cavity, and through the hooking assembly and the unblocking assembly, the problem that the screening efficiency is reduced due to blockage in existing screening is solved, and meanwhile the problem that falling is slow in the screening process is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of quartz sand processing, in particular to a process for preparing ultra-high purity quartz sand, fine crushing and multi-stage purification. Background Art

[0002] Quartz sand is a non-metallic mineral, a silicate mineral that is hard, wear-resistant, and chemically stable. Quartz sand is an important industrial mineral raw material and a non-chemical hazardous substance. It is widely used in industries such as glass, casting, ceramics and refractory materials, ferrosilicon smelting, metallurgical flux, and metallurgy. The lower the impurities in it, the better, so the quartz sand needs to be crushed and purified before use.

[0003] However, the existing quartz sand crushing and purification equipment has a slow screening process during the crushing and purification process and usually lacks an automatic cleaning structure, which causes the crushed quartz sand to be easily blocked during discharge, resulting in a decrease in screening efficiency.

[0004] To this end, the present invention provides a process for preparing ultra-high purity quartz sand, fine crushing and multi-stage purification. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve the technical problem is: the ultra-high purity quartz sand preparation fine crushing and multi-stage purification process of the present invention comprises the following steps:

[0007] Step 1: Preliminary cleaning of the ultra-high purity quartz sand raw material to be screened to remove large debris and entanglements;

[0008] Step 2: The prepared recycled material is evenly fed into the feed port (34) of the purification chamber (35), and after preliminary crushing by the crushing roller (31), falls onto the screening plate (36);

[0009] During screening, the limiting cone (49) follows the rotation of the rotating shaft (32), and the limiting cone (49) moves in an elliptical trajectory in the corresponding annular sleeve (41), so that the annular sleeve (41) drives the screening plate (36) to move along the "elliptical trajectory". During the movement, the screening plate (36) cooperates with the springs (38) at both ends to perform vibration screening and sorting, thereby finely screening the quartz sand raw material;

[0010] Step 3: During the screening process, the fixed rod (39) is driven to slide back and forth along the fixed groove (37) in the purification chamber (35). When sliding, the fixed rod (39) utilizes the sharp shape of the cone block (314) to fit with the outlet of the screening plate (36) to achieve secondary extrusion and crushing of the blockage, and completes the unblocking of the outlet of the screening plate (36) after the blockage.

[0011] As a further solution of the present invention: a resiliently connected sieve plate (36) is provided in the purification chamber (35); an auxiliary block (4) is fixedly connected to the lower surface of the sieve plate (36); and an annular sleeve (41) is fixedly connected to the lower surface of the auxiliary block (4);

[0012] The limiting cone (49) is slidably sleeved on the annular sleeve (41), pulling the annular sleeve (41) to move in an elliptical trajectory, and cooperating with the elastic reset of the screening plate (36) to perform vibrating screening.

[0013] As a further solution of the present invention, a plurality of springs (38) are fixedly connected to both ends of the screening plate (36), and the springs (38) are used to retract the limiting cone (49) and automatically reset the screening plate (36) when there is no longer a pulling force on the screening plate (36). The springs (38) can swing continuously, so that the screening plate (36) can swing in a certain arc, and can cooperate with the clearing assembly to clear the blockage.

[0014] As a further solution of the present invention, the rotation shaft (32) rotates to drive the limit frame (46) to rotate, and the limit frame (46) can slide along the first trough (42). During the sliding of the limit frame (46) along the first trough (42), the limit cone (49) can slide along the second trough (43). After the limit frame (46) slides along the first trough (42), the electric rod (44) starts to retract and drives the limit frame (46) to act on the annular sleeve (41) in different directions, driving the screening plate (36) to swing in a circle, so that the screening plate (36) continuously vibrates.

[0015] As a further solution of the present invention: limiting grooves (47) are provided on both sides of the limiting frame (46), limiting springs (48) are fixedly connected in the limiting grooves (47), and the limiting springs (48) are fixedly connected to limiting cones (49), and the limiting cones (49) can slide along the second groove body (43), and the limiting cones (49) can pull the annular sleeve (41) during the downward movement of the electric rod (44).

[0016] As a further solution of the present invention, the fixed rod (39) reciprocates in the fixed groove (37) on the inner wall of the purification chamber (35), and during the reciprocating movement, the elastic cone block (314) on the lower surface of the fixed rod (39) clears and blocks the discharge port of the screening plate (36).

[0017] As a further solution of the present invention, as the fixed rod (39) slides, it contacts and acts on the screening plate (36), and the blockage is crushed by secondary squeezing by utilizing the sharp shape of the cone block (314) and the fit of the outlet of the screening plate (36).

[0018] As a further solution of the present invention, a connecting groove (312) is provided in the connecting frame (311) on the lower surface of the fixing rod (39), and the cone block (314) is connected to the top wall of the connecting groove (312) via a compression spring (313), so that the cone block (314) has a buffer force in the vertical direction during operation.

[0019] As a further solution of the present invention: during the resetting process of the screen plate (36), the plate holes on the surface of the screen plate (36) will collide with the cone block (314), and the quartz sand stuck in the plate holes of the screen plate (36) will collide with the cone block (314), and the cone block (314) can push out the quartz sand blocks stuck in the plate holes.

[0020] As a further solution of the present invention, a push block (310) on one side of the fixed rod (39) is used to push out the large pieces of quartz sand that have not been screened, and a top plate (315) on the other side of the fixed rod (39) is used to push back the large pieces of quartz sand that have not been screened. A collection trough is provided at a position of the screening plate (36) corresponding to the collecting cover (52). The pushed-back top plate (315) can push the large pieces of quartz sand raw material into the collecting trough, and the large pieces of quartz sand raw material fall from the collecting trough along the collecting cover (52) into the collecting frame (51).

[0021] The beneficial effects of the present invention are as follows:

[0022] 1. The ultra-high purity quartz sand preparation, fine crushing and multi-stage purification process of the present invention receives the quartz sand raw material to be crushed and purified through the fixed frame on the machine body, and the quartz sand raw material falls into the feed port. At this time, the crushing roller is driven by the first motor to rotate, and the crushing roller and the teeth on the auxiliary plate are staggered to achieve preliminary crushing of the quartz sand raw material. The crushed quartz sand raw material falls on the screening plate. The first motor not only drives the crushing roller, but also drives the hook component through the transmission mechanism. The hook component utilizes the limiting cone on the rotating shaft. When the limiting cone follows the rotation of the rotating shaft, the limiting cone will drive the corresponding annular sleeve to move in an elliptical trajectory. When the annular sleeve drives the screening plate to move along the "elliptical trajectory", the screening plate cooperates with the springs at both ends to perform vibration screening and sorting. At the same time, the clearing component sliding in the purification chamber cooperates with the vibration of the screening plate to effectively prevent the screen holes from being blocked, thereby ensuring screening efficiency.

[0023] 2. The ultra-high purity quartz sand preparation fine crushing and multi-stage purification process described in the present invention drives the limit frame to slide along the first trough body when the rotating shaft rotates, and the limit cone in the limit frame slides synchronously in the second trough body. The powder screening strength of the screening plate is adjusted by the extension and contraction of the electric rod, that is, the automatic vibration function of the screening plate is realized through the coordinated action of the rotating shaft, the limit frame, the limit cone and the electric rod. No additional power source is required, which reduces energy consumption. The continuous resetting of the spring and the vibration action effectively improve the screening efficiency, making the screening process more efficient and stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] Figure 1 is a perspective view of embodiment 1 of the present invention;

[0026] Figure 2 It is a structural schematic diagram of the discharge port of the present invention;

[0027] Figure 3 is a cross-sectional view of the body of the present invention;

[0028] Figure 4 It is a structural schematic diagram of the spring of the present invention;

[0029] Figure 5 It is a structural schematic diagram of the rotating shaft of the present invention;

[0030] Figure 6 It is a structural schematic diagram of the connecting rod of the present invention;

[0031] Figure 7 It is a structural schematic diagram of the annular sleeve of the present invention;

[0032] Figure 8 It is a structural schematic diagram of the cone block of the present invention;

[0033] In the figure: 1. body;

[0034] 2. Support plate; 21. First hydraulic cylinder; 22. Connecting rod; 23. Connecting plate; 24. Connecting column; 25. Push plate;

[0035] 3. First motor; 31. Crushing roller; 32. Rotating shaft; 33. Fixed frame; 34. Feed port; 35. Purification chamber; 36. Screening plate; 37. Fixed slot; 38. Spring; 39. Fixed rod; 310. Push block; 311. Connecting frame; 312. Connecting slot; 313. Compression spring; 314. Cone block; 315. Top plate; 316. Discharge port; 317. Auxiliary plate;

[0036] 4. Auxiliary block; 41. Annular sleeve; 42. First slot; 43. Second slot; 44. Electric rod; 45. Limit rod; 46. Limit frame; 47. Limit slot; 48. Limit spring; 49. Limit cone;

[0037] 5. Bottom plate; 51. Collection frame; 52. Collection cover;

[0038] 6. Reciprocating drive mechanism. DETAILED DESCRIPTION

[0039] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0040] Example 1: Figures 1 to 8 As shown, the ultra-high purity quartz sand preparation, fine crushing and multi-stage purification process described in an embodiment of the present invention includes a body 1, a fixed frame 33 is fixedly connected to the upper surface of the body 1, a feed port 34 is opened in the fixed frame 33, a first motor 3 is provided below the body 1, the output end of the first motor 3 is driven and connected to a crushing roller 31, auxiliary plates 317 are fixedly connected to both sides of the inner wall of the feed port 34, and one side of the auxiliary plate 317 is fixedly connected to teeth that are staggered with the teeth on the circumferential surface of the crushing roller 31, and the auxiliary plate 317 is used to assist the crushing roller 31 in crushing the quartz sand, thereby achieving the crushing treatment of large-sized quartz sand and the purification treatment of converting large-sized quartz sand into small-sized quartz sand;

[0041] It should be noted that the crushing accuracy of the quartz sand can be adjusted by adjusting the meshing accuracy between the crushing roller 31 and the red teeth on the auxiliary plate 317;

[0042] A purification chamber 35 is fixedly connected to the middle part of the body 1, and a resiliently connected screening plate 36 is provided in the purification chamber 35. The first motor 3 also drives a hook assembly, which is used to vibrate the screening plate 36. The lower surface of the screening plate 36 is fixedly connected to the auxiliary block 4, and the lower surface of the auxiliary block 4 is fixedly connected to the annular sleeve 41. The first motor 3 is drivingly connected to the rotating shaft 32. The circumferential surface of the rotating shaft 32 is provided with a resiliently connected limiting cone 49, which is slidably sleeved in the annular sleeve 41.

[0043] The annular sleeve 41 is an elliptical structure, the major axis of the annular sleeve 41 is in the vertical direction, and the minor axis of the annular sleeve 41 is in the horizontal direction;

[0044] When the limiting cone 49 follows the rotation of the rotating shaft 32, the limiting cone 49 drives the corresponding annular sleeve 41 to move in an elliptical trajectory, and the movement amplitude of the annular sleeve 41 in the vertical direction is greater than the movement amplitude of the annular sleeve 41 in the horizontal direction;

[0045] Among them, when the annular sleeve 41 drives the screening plate 36 to move along the "elliptical trajectory", the screening plate 36 cooperates with the springs 38 at both ends to perform vibration screening and sorting; the purification chamber 35 is slidingly provided with a clearing component, and the clearing component cooperates with the elastic reset vibration of the screening plate 36 to perform clearing work.

[0046] Specifically, during the screening process of the quartz sand crushing and purification equipment, the equipment first receives the quartz sand raw material to be crushed and purified through the fixed frame 33 on the machine body 1, and the quartz sand raw material falls into the feed port 34. At this time, the crushing roller 31 is driven to rotate by the first motor 3, and the teeth on the crushing roller 31 and the auxiliary plate 317 are staggered and matched (the meshing accuracy of the teeth of the crushing roller 31 and the auxiliary plate 317 is adjusted according to the required crushing accuracy) to achieve preliminary crushing of the quartz sand raw material. The crushed quartz sand raw material falls on the screening plate 36. The first motor 3 not only drives the crushing roller 31, but also drives the hook assembly through the transmission mechanism. The hook assembly uses the limiting cone 49 on the rotating shaft 32 to annularly sleeve the annular sleeve 41 on the lower surface of the screening plate 36. The limiting cone 49 follows the rotation of the rotating shaft 32 to limit The position cone 49 will drive the corresponding annular sleeve 41 to move in an elliptical trajectory. When the annular sleeve 41 drives the screening plate 36 to move along the "elliptical trajectory", the screening plate 36 cooperates with the springs 38 at both ends to perform vibration screening and sorting, and finely screens the quartz sand raw material. At the same time, the clearing assembly sliding in the purification chamber 35 cooperates with the vibration of the screening plate 36 to effectively prevent the sieve holes from being blocked, thereby ensuring the screening efficiency. The teeth of the crushing roller 31 and the auxiliary plate 317 cooperate to achieve the preliminary crushing of the quartz sand raw material, which provides convenience for subsequent screening. The ingenious combination of the screening plate 36, the hook assembly and the clearing assembly not only improves the screening efficiency, but also ensures the fineness of the screening. The elastic reset vibration design of the screening plate 36 effectively avoids the problem of sieve hole blockage and extends the service life of the equipment.

[0047] The invention solves the problem that the existing screening process may cause the screening efficiency to decrease due to blockage, and solves the problem of slow falling during the screening process.

[0048] like Figure 4 As shown, in this embodiment, both ends of the screening plate 36 are fixed with a number of springs 38, which are used to cooperate with the movement of the limiting cone 49 in the annular sleeve 41. The springs 38 can swing continuously, which can make the screening plate 36 swing in an "elliptical trajectory motion" and can cooperate with the clearing assembly to clear the blockage; the middle part of the body 1 is fixed with a support plate 2, and the upper surface of the support plate 2 is fixed with a first hydraulic cylinder 21, the output end of the first hydraulic cylinder 21 is fixed with a connecting rod 22, and the output end of the connecting rod 22 is fixed with a connecting plate 23, one side of the connecting plate 23 is fixed with a connecting column 24, and the connecting column 24 is fixed with a push plate 25, and one side of the purification chamber 35 is fixed with a discharge port 316, and the cross-section of the push plate 25 is the same as the inner diameter of the discharge port 316. The push plate 25 can push smaller quartz sand raw materials out of the discharge port 316, thereby completing the fine screening and purification of the quartz sand raw materials.

[0049] Specifically, the springs 38 fixed at both ends of the screening plate 36 are used to cooperate with the movement of the limiting cone 49 in the annular sleeve 41. The springs 38 can swing continuously, which can make the screening plate 36 swing in an "elliptical trajectory motion", thereby enhancing the screening effect and cooperating with the clearing component to effectively prevent the sieve holes from being blocked. In addition, on the support plate 2 in the middle of the body 1, the first hydraulic cylinder 21 drives the push plate 25 through the connecting rod 22, the connecting plate 23 and the connecting column 24. The cross-section of the push plate 25 is the same as the inner diameter of the discharge port 316 on one side of the purification chamber 35, which can push the smaller quartz sand raw materials after screening out of the discharge port 316, thereby achieving continuous and efficient screening and discharging. This not only realizes the automatic reset of the screening plate 36, but also enhances the swing effect during the screening process, thereby improving the screening efficiency and accuracy. At the same time, the cooperation between the push plate 25 driven by the first hydraulic cylinder 21 and the discharge port 316 ensures that the screened quartz sand raw materials can be discharged in time, avoiding accumulation and blockage, and further improving the screening efficiency.

[0050] like Figure 7 As shown, the hook assembly of this embodiment also includes a first groove body 42 opened on the inner wall of the annular sleeve 41, and second groove bodies 43 are opened on both sides of the inner wall of the first groove body 42. An electric rod 44 is fixedly connected to the circumferential surface of the rotating shaft 32, and the output end of the electric rod 44 is fixedly connected to a limiting rod 45. The top end of the limiting rod 45 is fixedly connected to a limiting frame 46, and a limiting cone 49 is elastically arranged in the limiting frame 46.

[0051] Specifically, the rotating shaft 32 drives the electric rod 44 and the limiting rod 45 to rotate. When the limiting rod 45 enters the first groove 42 of the annular sleeve 41, the limiting cone 49 slides along the second groove 43. Due to the elastic setting, the limiting cone 49 can closely fit the edge of the second groove 43 to achieve a stable sleeve connection.

[0052] In a specific implementation process, the powder screening strength of the screening plate 36 can also be adjusted by extending and retracting the electric rod 44 .

[0053] Example 2: Figures 1 to 8 As shown, compared with Example 1, another embodiment of the present invention is: the rotation of the rotating shaft 32 drives the limit frame 46 to rotate, and the limit frame 46 can slide along the first groove body 42. During the sliding of the limit frame 46 along the first groove body 42, the limit cone 49 can slide along the second groove body 43. In the process of the limit cone 49 following the rotation of the rotating shaft 32, the limit cone 49 will drive the corresponding annular sleeve 41 to move in an elliptical trajectory. In the process of the annular sleeve 41 driving the screening plate 36 to move along the "elliptical trajectory", the screening plate 36 cooperates with the springs 38 at both ends to perform vibrating screening and sorting. At this time, the screening plate 36 generates a vibrating screening action under the reset force of the spring 38. Since the spring 38 will not stop at the first time, it will continue to swing back and forth, so that the screening plate 36 continues to vibrate, thereby improving the screening efficiency.

[0054] Specifically, through the coordinated action of the rotating shaft 32, the limit frame 46, the limit cone 49 and the electric rod 44, the automatic vibration function of the screening plate 36 is realized, without the need for an additional power source, reducing energy consumption. The continuous resetting and vibrating action of the spring 38 effectively improves the screening efficiency, making the screening process more efficient and stable.

[0055] like Figure 7 As shown, in this embodiment, limiting grooves 47 are provided on both sides of the limiting frame 46, and limiting springs 48 are fixed in the limiting grooves 47. The limiting springs 48 are fixed to the limiting cones 49. The limiting cones 49 can slide along the second groove body 43. The limiting cones 49 can pull the annular sleeve 41 during the extension and retraction of the electric rod 44.

[0056] Specifically, the limiting springs 48 fixed in the limiting grooves 47 on both sides of the limiting frame 46 provide stable support and elasticity for the limiting cone 49. When the electric rod 44 moves downward, the limiting cone 49 slides along the second groove body 43, and at the same time, with the help of the elastic force of the limiting spring 48, the annular sleeve 41 is appropriately pulled to ensure stable hooking.

[0057] like Figure 2 and Figure 8 As shown, the blockage clearing assembly of this embodiment includes a fixing groove 37 provided on the inner wall of the purification chamber 35, a fixing rod 39 is slidably connected in the fixing groove 37, and a plurality of cone blocks 314 are elastically provided on the lower surface of the fixing rod 39, and the cone blocks 314 are used to clear blockages of the screening plate 36;

[0058] Specifically, the fixing rod 39 in the fixing groove 37 can slide along the groove body, and the cone block 314 elastically arranged on its lower surface contacts and acts on the screening plate 36 as the fixing rod 39 slides. The sharp shape of the cone block 314 is used to fit with the outlet of the screening plate 36 to achieve secondary extrusion and crushing of the blockage, further providing a crushing effect on the quartz sand, and at the same time completing the unblocking of the outlet of the screening plate 36 after being blocked, thereby improving the crushing effect of the quartz sand. That is, through the sliding and elastic action of the cone block 314, the screening plate 36 is effectively cleared, and the screening efficiency is improved. The sharp shape of the cone block 314 can easily penetrate the blockage, reducing the resistance during the screening process. At the same time, the sliding design of the fixing rod 39 enables the cone block 314 to flexibly act on different positions of the screening plate 36, ensuring the comprehensiveness and efficiency of crushing and clearing.

[0059] like Figure 8 As shown, in this embodiment, a plurality of connection frames 311 are fixed to the lower surface of the fixing rod 39, each connection frame 311 is provided with a connection groove 312, the top wall of each connection groove 312 is fixed with a compression spring 313, and the bottom end of each compression spring 313 is fixed with a cone block 314.

[0060] Specifically, the cone block 314 elastically connected by the compression spring 313 in the connecting frame 311 on the lower surface of the fixed rod 39 can float up and down with the vibration of the screening plate 36, and the sharp part of the cone block 314 is used to clear the blockage on the screening plate 36. The elastic effect of the compression spring 313 is used to make the cone block 314 flexibly adapt to the vibration of the screening plate 36, ensuring that the cone block 314 always maintains contact with the screening plate 36, effectively improving the blockage clearing efficiency. At the same time, the sharp shape of the cone block 314 and the elastic force of the compression spring 313 can easily penetrate the blockage, reduce the resistance during the screening process, and ensure the continuity and stability of the screening.

[0061] It should be noted that the purification chamber 35 is also provided with a reciprocating drive mechanism 6 for driving the fixing rod 39 to move back and forth along the fixing groove 37 in the chamber.

[0062] The reciprocating drive mechanism 6 includes but is not limited to a cylinder, a reciprocating screw, a ratchet and connecting rod mechanism, etc., and is used to realize the reciprocating movement of the fixing rod 39 in the purification chamber 35.

[0063] like Figure 8 As shown, in the process of resetting the screen plate 36 of this embodiment, the plate holes on the surface of the screen plate 36 will collide with the cone block 314, and the quartz sand stuck in the plate holes of the screen plate 36 will collide with the cone block 314. The cone block 314 can push out the quartz sand blocks stuck in the plate holes.

[0064] Specifically, during the vibration reset process of the screen plate 36, the plate holes on its surface will collide with the cone block 314. When a quartz sand block is stuck in the plate hole, the cone block 314 collides with the quartz sand block with its sharp top, generating enough impact force to push the quartz sand block out.

[0065] like Figure 3 and Figure 8 As shown, in this embodiment, a push block 310 is fixedly connected to one side of the fixed rod 39, and a top plate 315 is fixedly connected to the other side of the fixed rod 39. The push block 310 is used to push out the large pieces of quartz sand that have not been screened, and the top plate 315 is used to push back the large pieces of quartz sand that have not been screened. A bottom plate 5 is fixedly connected to one side of the body 1, and a collecting frame 51 is provided on the upper surface of the bottom plate 5. A collecting cover 52 is provided at the position of the purification chamber 35 corresponding to the collecting frame 51, and a collecting trough is provided at the position of the screening plate 36 corresponding to the collecting cover 52. The pushed back top plate 315 can push the large pieces of quartz sand raw materials into the collecting trough, and fall from the collecting trough along the collecting cover 52 into the collecting frame 51.

[0066] Specifically, during the screening process, the push block 310 on one side of the fixed rod 39 can push out the large pieces of quartz sand that have not been screened on the screening plate 36. When these large pieces of quartz sand need to be pushed back, the top plate 315 on the other side of the fixed rod 39 plays a role in pushing the large pieces of quartz sand back to a specific position on the screening plate 36. The collecting frame 51 provided on the bottom plate 5 on one side of the body 1 cooperates with the collecting cover 52 on the purification chamber 35 and the collecting trough on the screening plate 36 to form a complete collecting channel. The large pieces of quartz sand raw materials pushed back by the top plate 315 can smoothly enter the collecting trough and fall into the collecting frame 51 along the collecting cover 52, thereby realizing the effective collection of the quartz sand raw materials.

[0067] Ultra-high purity quartz sand preparation, fine crushing and multi-stage purification process, the use of methods include:

[0068] Step 1: Preliminary cleaning of the ultra-high purity quartz sand raw material to be screened to remove large debris and entanglements;

[0069] Step 2: The prepared recycled material is evenly fed into the feed port (34) of the purification chamber (35), and after preliminary crushing by the crushing roller (31), falls onto the screening plate (36);

[0070] During screening, the limiting cone (49) follows the rotation of the rotating shaft (32), and the limiting cone (49) moves in an elliptical trajectory in the corresponding annular sleeve (41), so that the annular sleeve (41) drives the screening plate (36) to move along the "elliptical trajectory". During the movement, the screening plate (36) cooperates with the springs (38) at both ends to perform vibration screening and sorting, thereby finely screening the quartz sand raw material;

[0071] Step 3: During the screening process, the fixed rod (39) is driven to slide back and forth along the fixed groove (37) in the purification chamber (35). When sliding, the fixed rod (39) utilizes the sharp shape of the cone block (314) to fit with the outlet of the screening plate (36) to achieve secondary extrusion and crushing of the blockage, and completes the unblocking of the outlet of the screening plate (36) after the blockage.

[0072] Working principle: First, the equipment receives the quartz sand raw material to be crushed and purified through the fixed frame 33 on the body 1. The quartz sand raw material falls into the feed port 34. At this time, the first motor 3 drives the crushing roller 31 to rotate. The teeth on the crushing roller 31 and the auxiliary plate 317 are staggered to achieve preliminary crushing of the quartz sand raw material. The crushed quartz sand raw material falls on the screening plate 36. The first motor 3 not only drives the crushing roller 31, but also drives the hook assembly to drive the rotating shaft 32 to rotate through the transmission mechanism. When the rotating shaft 32 rotates, it drives the limit frame 46 to slide along the first trough 42, and the limit cone 49 in the limit frame 46 slides synchronously in the second trough 43 until the limit frame 46 slides to the predetermined position. At this time, the electric rod 4 4 starts and retracts, pulling the limit frame 46 and the screen plate downward and generating a forward pulling force. When the electric rod 44 is fully retracted, the limit cone 49 is separated from the second trough 43. Under the reset force of the spring 38, the screening plate 36 quickly resets upward and backward, generating a strong vibrating action. Since the elastic action of the spring 38 does not stop immediately, the screening plate 36 will continue to hook and reset back and forth to achieve continuous vibrating. Through the coordinated action of the rotating shaft 32, the limit frame 46, the limit cone 49 and the electric rod 44, the automatic vibrating function of the screening plate 36 is achieved. No additional power source is required, which reduces energy consumption. The continuous reset of the spring 38 and the vibrating action effectively improve the screening efficiency, making the screening process more efficient and stable.

[0073] At the same time, the clearing assembly slidingly arranged in the purification chamber 35 cooperates with the vibration of the screening plate 36. Specifically, the fixing rod 39 in the fixing groove 37 can slide along the groove body, and the cone block 314 elastically arranged on its lower surface contacts and acts on the screening plate 36 as the fixing rod 39 slides. The sharp shape of the cone block 314 is used to dredge the blockage on the screening plate 36. The sliding and elastic action of the cone block 314 realizes the effective clearing of the screening plate 36, thereby improving the screening efficiency. The sharp shape of the cone block 314 can easily penetrate the blockage, reducing the resistance during the screening process. At the same time, the sliding design of the fixing rod 39 enables the cone block 314 to flexibly act on different positions of the screening plate 36, thereby ensuring the comprehensiveness and efficiency of the clearing.

[0074] It effectively prevents sieve hole clogging and ensures screening efficiency. In addition, the teeth of the crushing roller 31 and the auxiliary plate 317 cooperate to achieve preliminary crushing of the quartz sand raw material, which provides convenience for subsequent screening. The ingenious combination of the screening plate 36, the hook assembly, and the clearing assembly not only improves the screening efficiency, but also ensures the fineness of the screening. The elastic reset vibration design of the screening plate 36 effectively avoids the problem of sieve hole clogging and extends the service life of the equipment.

[0075] Finally, during the screening process, the push block 310 on one side of the fixed rod 39 can push out the large pieces of quartz sand that have not been screened on the screening plate 36. When these large pieces of quartz sand need to be pushed back, the top plate 315 on the other side of the fixed rod 39 plays a role in pushing the large pieces of quartz sand back to a specific position on the screening plate 36. The collecting frame 51 provided on the bottom plate 5 on one side of the body 1 cooperates with the collecting cover 52 on the purification chamber 35 and the collecting trough on the screening plate 36 to form a complete collecting channel. The large pieces of quartz sand raw materials pushed back by the top plate 315 can smoothly enter the collecting trough and fall into the collecting frame 51 along the collecting cover 52, thereby realizing the effective collection of the quartz sand raw materials.

[0076] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. Ultra-high purity quartz sand preparation, fine crushing and multi-stage purification process, characterized in that: The following steps are involved: Step 1: Preliminary cleaning of the ultra-high purity quartz sand raw material to be screened to remove large debris and entanglements; Step 2: The prepared recycled material is evenly fed into the feed port (34) of the purification chamber (35), and after preliminary crushing by the crushing roller (31), falls onto the screening plate (36); During screening, as the limiting cone (49) follows the rotation of the rotating shaft (32), the limiting cone (49) moves in an elliptical trajectory in the corresponding annular sleeve (41), so that the annular sleeve (41) drives the screening plate (36) to move along the "elliptical trajectory". During the movement, the screening plate (36) cooperates with the springs (38) at both ends to perform vibration screening and sorting, thereby finely screening the quartz sand raw material; Step 3: During the screening process, the fixed rod (39) is driven to slide back and forth along the fixed groove (37) in the purification chamber (35). When sliding, the fixed rod (39) utilizes the sharp shape of the cone block (314) to fit with the outlet of the screening plate (36) to achieve secondary extrusion and crushing of the blockage, and completes the unblocking of the outlet of the screening plate (36) after the blockage.

2. The ultra-high purity quartz sand preparation fine crushing and multi-stage purification process according to claim 1, wherein a resiliently connected screening plate (36) is provided in the purification chamber (35), characterized in that: An auxiliary block (4) is fixedly connected to the lower surface of the screening plate (36), and an annular sleeve (41) is fixedly connected to the lower surface of the auxiliary block (4); The limiting cone (49) is slidably sleeved on the annular sleeve (41), pulling the annular sleeve (41) to move in an elliptical trajectory, and cooperating with the elastic reset of the screening plate (36) to perform vibrating screening.

3. The process for preparing ultra-high purity quartz sand, fine crushing and multi-stage purification according to claim 2, characterized in that: A plurality of springs (38) are fixedly connected to both ends of the screening plate (36). The springs (38) are used to retract the limiting cone (49) and automatically reset the screening plate (36) when there is no longer a pulling force on the screening plate (36). The springs (38) can swing continuously, so that the screening plate (36) can swing in a certain arc and can cooperate with the clearing assembly to clear the blockage.

4. The process for preparing ultra-high purity quartz sand, fine crushing and multi-stage purification according to claim 1, characterized in that: The rotation of the rotating shaft (32) drives the limit frame (46) to rotate, and the limit frame (46) can slide along the first trough (42). During the sliding of the limit frame (46) along the first trough (42), the limit cone (49) can slide along the second trough (43). After the limit frame (46) slides along the first trough (42), the electric rod (44) starts to retract and drives the limit frame (46) to act on the annular sleeve (41) in different directions, driving the screening plate (36) to swing in an annular direction, so that the screening plate (36) continuously vibrates.

5. The process for preparing ultra-high purity quartz sand, fine crushing and multi-stage purification according to claim 4, characterized in that: Limiting grooves (47) are provided on both sides of the limiting frame (46), and limiting springs (48) are fixedly connected in the limiting grooves (47). The limiting springs (48) are fixedly connected to limiting cones (49), and the limiting cones (49) can slide along the second groove body (43). The limiting cones (49) can pull the annular sleeve (41) when the electric rod (44) moves downward.

6. The process for preparing ultra-high purity quartz sand, fine crushing and multi-stage purification according to claim 1, characterized in that: The fixed rod (39) reciprocates in the fixed groove (37) on the inner wall of the purification chamber (35). During the reciprocating movement, the elastic cone block (314) on the lower surface of the fixed rod (39) clears and blocks the discharge port of the screening plate (36).

7. The process for preparing ultra-high purity quartz sand, fine crushing and multi-stage purification according to claim 6, characterized in that: As the fixed rod (39) slides, it contacts and acts on the screening plate (36), and the blockage is crushed by secondary extrusion by the sharp shape of the cone block (314) and the outlet of the screening plate (36).

8. The process for preparing ultra-high purity quartz sand, fine crushing and multi-stage purification according to claim 6, characterized in that: A connecting groove (312) is provided in the connecting frame (311) on the lower surface of the fixing rod (39), and the cone block (314) is connected to the top wall of the connecting groove (312) via a compression spring (313), so that the cone block (314) has a buffer force in the vertical direction during operation.

9. The process for preparing ultra-high purity quartz sand, fine crushing and multi-stage purification according to claim 8, characterized in that: During the resetting process of the screen plate (36), the plate holes on the surface of the screen plate (36) collide with the cone block (314), and the quartz sand stuck in the plate holes of the screen plate (36) collide with the cone block (314), and the cone block (314) can push out the quartz sand stuck in the plate holes.

10. The process for preparing ultra-high purity quartz sand, fine crushing and multi-stage purification according to claim 8, characterized in that: The push block (310) on one side of the fixed rod (39) is used to push out the large pieces of quartz sand that have not been screened, and the top plate (315) on the other side of the fixed rod (39) is used to push back the large pieces of quartz sand that have not been screened. A collection trough is provided at a position of the screening plate (36) corresponding to the collection cover (52). The pushed-back top plate (315) can push the large pieces of quartz sand raw material into the collection trough, and the large pieces of quartz sand raw material fall from the collection trough along the collection cover (52) into the collection frame (51).

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