Device and method for preparing high-purity quartz sand

Abstract

The invention discloses a high-purity quartz sand preparation device and method, and relates to the technical field of high-purity quartz sand. The bottom of an electromagnetic separation structure communicates with a flow guide shell, an airflow assembly is installed on the inner side of the bottom of the flow guide shell, a cleaning structure is installed on the electromagnetic separation structure, a transmission structure is arranged between the airflow assembly and the cleaning structure, a discharging guide structure is installed on the inner side of the bottom of the electromagnetic separation structure, and quartz sand flows to the bottom of the discharging guide structure; according to the quartz sand discharging device, the air flow assembly blows quartz sand, and the discharging guiding structure guides and discharges the blown quartz sand, through the arrangement of the discharging guiding structure and the air flow assembly, when the air flow assembly blows the quartz sand, the discharging guiding structure guides and discharges the blown quartz sand, and the quartz sand is discharged according to the preset direction and mode; compared with an existing chemical separation and purification method, the method has the advantages that the cost is lower, energy is saved, and the environment is protected.

Description

Technical Field

[0001] The invention relates to the technical field of high-purity quartz sand, and in particular to a high-purity quartz sand preparation device and a method thereof. Background Art

[0002] High-purity quartz sand is quartz sand with a silicon dioxide content higher than 99.9%. It is a white powder with no hue and very low impurity content. It has high temperature resistance, excellent chemical properties, excellent electrical insulation and light transmittance, etc. It is an irreplaceable mineral raw material for high-tech industries. The purification of quartz sand mainly removes a small amount or trace impurities to obtain high-purity quartz sand. Iron oxide and aluminum oxide are the main harmful substances in quartz sand, so the effective removal of iron and aluminum can significantly reflect the technological progress of quartz sand purification and process.

[0003] A Chinese patent (application number: CN202411411780.9) discloses a high-purity quartz sand and its preparation method, including: hot-pressing and leaching the quartz sand after roasting and water quenching; before roasting, the quartz sand is placed in carbon dioxide gas, ball-milled and dried under supercritical conditions. This invention solves the technical problem that when hot-pressing leaching is used to improve the purity of quartz sand, the removal effect of Mg, Ti, Ca, and P elements is poor, and it is difficult to remove B and Zr elements, and further improves the removal effect of Al and Fe elements to produce high-purity quartz sand.

[0004] This patent and the prior art have the following technical problems in actual use: 1. The patented chemical separation and purification method has the problems of high cost, complicated operation and possible generation of a large amount of hazardous waste in the process of improving the purity of quartz sand. In the process of its chemical reaction, waste water and waste gas will be generated, making it difficult to achieve environmental protection and energy saving.

[0005] 2. Based on question one, after the quartz sand is extracted and separated, the device needs to be cleaned in time to avoid blockage and affect the separation effect. Summary of the invention

[0006] The purpose of the present invention is to solve the above problems and provide a high-purity quartz sand preparation device and method.

[0007] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions: A high-purity quartz sand preparation device and method thereof, comprising a first shell and a crushing assembly, wherein the bottom of the first shell is connected to a second shell; A feed port is provided on the top of the first shell, and the crushing assembly is installed inside the first shell; A screen is installed at the bottom of the first shell, and outlets are arranged on both sides of the bottom of the first shell; An electric field component is installed inside the second shell, and the electric field component includes an electromagnetic sorting structure, a cleaning structure, and a discharge guiding structure; The electromagnetic separation structure is installed on the inner side of the second housing; The bottom of the electromagnetic separation structure is connected to a flow guide shell, and an airflow component is installed on the inner side of the bottom of the flow guide shell; The cleaning structure is installed on the electromagnetic sorting structure; A transmission structure is provided between the airflow component and the cleaning structure; The discharge guide structure is installed on the inner side of the bottom of the electromagnetic separation structure, the quartz sand flows to the bottom of the discharge guide structure, the airflow component blows the quartz sand, and the discharge guide structure guides and discharges the blown quartz sand.

[0008] Furthermore, a support frame is installed at the bottom of the second shell to support the device; The crushing assembly includes a first motor, which is mounted on the outer wall of the first shell, and two crushing wheels are rotatably connected to the inner wall of the first shell, the two crushing wheels are meshed with each other, and the output shaft of the first motor is connected to the rotating shaft of one of the crushing wheels; Transmission wheels are respectively installed on the rotating shafts of the two rolling wheels, the transmission wheels are located outside the first shell, and a transmission belt is connected between the two transmission wheels.

[0009] Furthermore, a sliding groove is provided at the bottom of the first shell, a transmission rod is rotatably connected to the outer wall of one of the transmission wheels, a connecting rod is rotatably connected to the bottom of the transmission rod, the connecting rod is connected to the screen through the sliding groove, and both ends of the screen are inclined toward the outlet respectively.

[0010] Furthermore, the electromagnetic sorting structure includes an electrode and a metal bucket shell, the metal bucket shell is installed on the inner wall of the second shell, two electrodes are installed on the outer wall of the metal bucket shell, the two electrodes penetrate the second shell and extend to the outside of the second shell, and the metal bucket shell is made of aluminum.

[0011] Furthermore, the bottom of the metal bucket shell is provided with a cone, and a plurality of air inlets are provided at the bottom of the metal bucket shell. The guide shell is connected to the outer wall of the metal bucket shell, and the guide shell is connected to the interior of the metal bucket shell through the air inlets.

[0012] Furthermore, the airflow component includes a second motor, which is installed at the bottom of the support frame. A rotating shaft is installed at the top of the second motor, and fan blades are installed on the outer wall of the rotating shaft.

[0013] Further, the discharge guide structure includes a large conical shell, a connecting pipe and a small conical shell, the connecting pipe is installed at the bottom of the metal bucket shell and penetrates through it, the top of the connecting pipe is connected to the small conical shell, the top of the small conical shell is connected to a fixing rod, the top of the fixing rod is fixedly connected to the large conical shell, and the top of the connecting pipe is provided with an exhaust port; The top of the rotating shaft is rotatably connected and communicated with the bottom of the connecting pipe, and a discharge conduit is rotatably connected to the outer wall of the bottom of the rotating shaft; The middle part of the discharge conduit is annular, the discharge conduit is connected with the rotating shaft through the annular structure, and the discharge conduit passes through the guide shell and extends to the outside of the guide shell.

[0014] Furthermore, a first gear is installed on the outer wall of the rotating shaft, and the transmission structure includes a second gear and a third gear. A connecting shaft is fixedly connected between the second gear and the third gear. The second gear is meshed with the first gear. The diameter of the first gear is smaller than the diameter of the second gear, and the diameter of the third gear is smaller than the diameter of the first gear.

[0015] Further, the cleaning structure includes a gear ring and a scraper, the gear ring is rotatably connected to the metal bucket shell, the third gear and the gear ring teeth are meshed with each other, the scraper is connected to the outer wall of the gear ring, and the scraper is attached to the inner wall of the metal bucket shell; The scraper is provided with a cleaning trough, which passes through the gear ring and extends to the outside of the metal bucket shell. The bottom port of the cleaning trough faces the top outer wall of the guide shell. A collecting box is fixedly connected to the top outer wall of the guide shell, and a discharge port is opened on the collecting box.

[0016] A method for preparing a high-purity quartz sand device comprises the following steps: Step 1: firstly operate the crushing component, the electric field component and the airflow component, introduce the quartz sand through the top feed port of the first shell, and the crushing component crushes the blocky quartz sand; Step 2: The crushed quartz sand is preliminarily screened through a screen, the granular quartz sand passes through the screen, and some blocky quartz sand is discharged through the bottom port of the first shell; Step 3: The electromagnetic separation structure adsorbs the metal minerals in the quartz sand, and the quartz sand flows to the bottom of the electromagnetic separation structure. The airflow component blows the quartz sand, and the discharge guide structure guides and discharges the blown quartz sand. Step 4: The airflow component drives the cleaning structure to operate slowly through the transmission structure, cleans the metal minerals adsorbed by the electromagnetic separation structure, and guides them to the outside of the electromagnetic separation structure. The metal minerals flow along the top slope of the guide shell to the inside of the collection box for collection.

[0017] The beneficial effects of the present invention are as follows: 1. The present invention arranges electromagnetic sorting, a discharge guiding structure and an airflow component. The electromagnetic sorting structure uses the electromagnetic principle to sort quartz sand. Quartz sand itself is not a metal mineral and is not conductive. The quartz sand after electromagnetic sorting flows to the discharge guiding structure at the bottom of the electromagnetic sorting structure. In this process, the airflow component located on the inner side of the bottom of the guide shell will blow the quartz sand. The discharge guiding structure is installed on the inner side of the bottom of the electromagnetic sorting structure. While the airflow component blows the quartz sand, the discharge guiding structure guides and discharges the blown quartz sand. It can ensure that the quartz sand is discharged in a predetermined direction and manner, which is convenient for collection and subsequent processing, and finally a high-purity quartz sand product is obtained. Compared with the existing chemical separation and purification methods, the cost is low and it is energy-saving and environmentally friendly.

[0018] 2. The cleaning structure of the present invention is set up so that the third gear obtains a smaller rotation speed during the process of the rotating shaft rotating and driving the cleaning structure through the transmission structure, so that the cleaning structure can clean the impurities on the inner wall of the metal bucket shell at a moderately slow speed, thereby preventing the quartz sand flowing through from being cleaned at an excessively fast rotation speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of a crushing assembly of the present invention; Figure 3 It is a schematic diagram of the guide shell structure of the present invention; Figure 4 is a schematic diagram of an electric field assembly of the present invention; Figure 5 is a schematic diagram of the interior of the electric field assembly of the present invention; Figure 6 It is a schematic diagram of the discharge guiding structure of the present invention; Figure 7 It is a schematic diagram of the cleaning structure of the present invention; Figure 8 It is a schematic diagram of the interior of the cleaning structure of the present invention; Fig. 9 It is a schematic diagram of the airflow component and transmission structure of the present invention; Fig.10 It is a schematic diagram of the transmission wheel structure of the present invention.

[0020] Figure numerals: 1. first shell; 2. crushing assembly; 201. first motor; 202. crushing wheel; 3. second shell; 4. screen; 5. electric field assembly; 501. electrode; 502. metal bucket shell; 503. air inlet; 504. gear ring; 505. large conical shell; 506. connecting pipe; 507. small conical shell; 508. cleaning trough; 509. scraper; 510. exhaust port; 6. airflow assembly; 601. second motor; 602. fan blade; 603. rotating shaft; 604. first gear; 7. collecting box; 8. guide shell; 9. discharge duct; 10. second gear; 11. third gear; 12. transmission wheel; 13. transmission belt; 14. transmission rod; 15. connecting rod. DETAILED DESCRIPTION

[0021] To make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] A high-purity quartz sand preparation device and method according to a preferred embodiment of the present invention will be described in detail below.

[0023] Embodiment 1, as Figure 1 - Fig.10 As shown, a high-purity quartz sand preparation device and method thereof include a first shell 1 and a crushing assembly 2, wherein the bottom of the first shell 1 is connected to a second shell 3; A feeding port is provided on the top of the first shell 1, and the crushing assembly 2 is installed inside the first shell 1; A screen 4 is installed at the bottom of the first shell 1, and outlets are arranged on both sides of the bottom of the first shell 1; An electric field assembly 5 is installed inside the second housing 3, and the electric field assembly 5 includes an electromagnetic sorting structure, a cleaning structure, and a discharge guiding structure; The electromagnetic separation structure is installed on the inner side of the second housing 3; The bottom of the electromagnetic separation structure is connected to a guide shell 8, and an airflow component 6 is installed on the inner side of the bottom of the guide shell 8; The cleaning structure is installed on the electromagnetic sorting structure; A transmission structure is provided between the airflow component 6 and the cleaning structure; The discharge guide structure is installed on the inner side of the bottom of the electromagnetic separation structure, and the quartz sand flows to the bottom of the discharge guide structure. The airflow component 6 blows the quartz sand, and the discharge guide structure guides and discharges the blown quartz sand. The purpose of the above arrangement is that the quartz sand raw material enters from the feed port at the top of the first shell 1, and the crushing component 2 crushes the entered quartz sand inside the first shell 1. The crushing can break larger particles of quartz sand into smaller particles. The crushed quartz sand falls on the screen 4 at the bottom of the first shell 1. The screen 4 plays a role of preliminary screening. Small particles of quartz sand will pass through the screen 4 and fall into the interior of the electromagnetic separation structure, while larger quartz sand that does not pass through the screen 4 is discharged through the outlets on both sides of the bottom of the first shell 1; The quartz sand falling from the bottom outlet of the first shell 1 enters the electromagnetic separation structure in the electric field component 5 inside the second shell 3. Since there are conductive impurities in the quartz sand, such as some metal minerals such as sodium, aluminum, and iron, the electromagnetic separation structure uses the electromagnetic principle to sort the quartz sand, which has specific properties. For example, the conductive impurities will be separated from the quartz sand under the action of the electromagnetic force. The quartz sand itself is not a metal mineral and does not have conductivity, thereby improving the purity of the quartz sand; The cleaning structure is installed on the electromagnetic sorting structure. During the electromagnetic sorting process, the cleaning structure will clean the electromagnetic sorting structure to prevent excessive impurities from accumulating on the electromagnetic sorting structure during the sorting process, thereby affecting the sorting effect. The quartz sand after electromagnetic sorting flows to the discharge guide structure at the bottom of the electromagnetic sorting structure. In this process, the airflow component 6 located on the inner side of the bottom of the guide shell 8 will blow the quartz sand. The discharge guide structure is installed on the inner side of the bottom of the electromagnetic sorting structure. While the airflow component 6 blows the quartz sand, the discharge guide structure guides and discharges the blown quartz sand. It can ensure that the quartz sand is discharged in a predetermined direction and manner, which is convenient for collection and subsequent processing, and finally a high-purity quartz sand product is obtained.

[0024] Embodiment 2, based on the above embodiment, provides a rolling wheel 202 structure; like Figure 2 As shown, a support frame is installed at the bottom of the second housing 3 to support the device; The crushing assembly 2 includes a first motor 201, which is mounted on the outer wall of the first housing 1. Two crushing wheels 202 are rotatably connected to the inner wall of the first housing 1. The two crushing wheels 202 are meshed with each other, and the output shaft of the first motor 201 is connected to the rotating shaft of one of the crushing wheels 202. Transmission wheels 12 are respectively installed on the rotating shafts of the two rolling wheels 202. The transmission wheels 12 are located outside the first housing 1. A transmission belt 13 is connected between the two transmission wheels 12. The purpose of the above arrangement is that the first motor 201 is installed on the outer wall of the first shell 1, and its output shaft is connected to the rotating shaft of one of the rolling wheels 202. Since the two rolling wheels 202 are meshed with each other, when the first motor 201 is started, it drives the rolling wheel 202 connected to it to rotate, and then the other rolling wheel 202 is also rotated through the meshing action, thereby realizing the crushing operation of the passing quartz sand material.

[0025] Embodiment 3, based on the above embodiment, provides a screen 4 structure; like Figure 2 As shown, a sliding groove is provided at the bottom of the first housing 1, a transmission rod 14 is rotatably connected to the outer wall of one transmission wheel 12, a connecting rod 15 is rotatably connected to the bottom of the transmission rod 14, and the connecting rod 15 is connected to the screen 4 through the sliding groove, and both ends of the screen 4 are inclined toward the outlet respectively; The purpose of the above arrangement is that the outer wall of one of the transmission wheels 12 is rotatably connected to the transmission rod 14, the bottom of the transmission rod 14 is rotatably connected to the connecting rod 15, and the connecting rod 15 is connected to the screen 4 through the sliding groove at the bottom of the first shell 1 to form a crank structure. When the transmission wheel 12 rotates, the screen 4 is driven by the transmission rod 14 and the connecting rod 15 to move up and down repeatedly, thereby improving the screening efficiency. Since the two ends of the screen 4 are inclined toward the outlet, it is beneficial for the screened block quartz sand to move to the outlet for discharge.

[0026] Embodiment 4, based on the above embodiment, provides an electrode 501 and a metal bucket shell 502 structure; like Figure 4 As shown, the electromagnetic separation structure includes an electrode 501 and a metal bucket shell 502. The metal bucket shell 502 is installed on the inner wall of the second shell 3. The two electrodes 501 are installed on the outer wall of the metal bucket shell 502. The two electrodes 501 penetrate the second shell 3 and extend to the outside of the second shell 3. The metal bucket shell 502 is made of aluminum. The purpose of the above arrangement is that when the electrode 501 is energized, an electromagnetic field is generated inside the metal bucket 502, and the electromagnetic and conductive properties of the metal minerals in the quartz sand are used to sort the quartz sand. Aluminum is also a metal with high electrical conductivity, and is relatively light and low in cost, and is often used in situations where good electrical conductivity is required.

[0027] The bottom of the metal bucket shell 502 is set to be conical, and a plurality of air inlets 503 are opened at the bottom of the metal bucket shell 502. The guide shell 8 is connected to the outer wall of the metal bucket shell 502, and the guide shell 8 is connected to the inside of the metal bucket shell 502 through the air inlets 503; The purpose of the above arrangement is that the air inlet 503 is used to introduce airflow, and cooperate with the electromagnetic separation structure to re-separate the quartz sand and metal minerals to enhance the separation effect.

[0028] Embodiment 5, based on the above embodiment, provides a fan blade 602 structure; like Fig. 9 As shown, the airflow assembly 6 includes a second motor 601, which is mounted at the bottom of the support frame, a rotating shaft 603 is mounted on the top of the second motor 601, and a fan blade 602 is mounted on the outer wall of the rotating shaft 603; The purpose of the above arrangement is that the second motor 601 drives the rotating shaft 603 and the fan blades 602 to rotate, and during the rotation of the fan blades 602, the airflow is guided from the bottom to the top from the bottom port of the guide shell 8.

[0029] Embodiment 6, based on the above embodiment, provides a small conical shell 507 structure; like Figure 4 - Figure 6 As shown, the discharge guide structure includes a large conical shell 505, a connecting pipe 506 and a small conical shell 507. The connecting pipe 506 is installed at the bottom of the metal bucket shell 502 and penetrates through it. The top of the connecting pipe 506 is connected to the small conical shell 507. The top of the small conical shell 507 is connected to a fixing rod. The top of the fixing rod is fixedly connected to the large conical shell 505. The top of the connecting pipe 506 is provided with an exhaust port 510. The top of the rotating shaft 603 is rotatably connected and communicated with the bottom of the connecting pipe 506, and a discharge conduit 9 is rotatably connected to the outer wall of the bottom of the rotating shaft 603; The middle part of the discharge conduit 9 is annular, and the discharge conduit 9 is connected with the rotating shaft 603 through the annular structure. The discharge conduit 9 passes through the guide shell 8 and extends to the outside of the guide shell 8; The purpose of the above-mentioned arrangement is that the airflow enters the interior of the metal bucket shell 502 through the air inlet 503, blows toward the small conical shell 507, and then is discharged through the exhaust port 510. The arrangement of the small conical shell 507 and the large conical shell 505, the top slopes of both are convenient for the material to flow down, the small conical shell 507 blocks and guides the airflow, and the quartz sand at the bottom of the metal bucket shell 502 is guided to the exhaust port 510 for discharge under the blowing of the airflow, and the discharged quartz sand particles are discharged through the discharge duct 9, thereby realizing the screening of quartz sand and metal mineral impurities.

[0030] A first gear 604 is mounted on the outer wall of the rotating shaft 603, and the transmission structure includes a second gear 10 and a third gear 11. A connecting shaft is fixedly connected between the second gear 10 and the third gear 11. The second gear 10 and the first gear 604 are meshed with each other. The diameter of the first gear 604 is smaller than that of the second gear 10, and the diameter of the third gear 11 is smaller than that of the first gear 604. The purpose of the above arrangement is to allow the third gear 11 to obtain a lower rotation speed during the rotation of the shaft 603 and the driving of the cleaning structure through the transmission structure, so that the cleaning structure can clean the impurities on the inner wall of the metal bucket shell 502 at a moderately slow speed, thereby preventing the quartz sand flowing through from being cleaned at an excessively fast rotation speed.

[0031] Embodiment 7, based on the above embodiment, provides a scraper 509 structure; like Figure 7 - Figure 8 As shown, the cleaning structure includes a gear ring 504 and a scraper 509, the gear ring 504 is rotatably connected to the metal bucket shell 502, the third gear 11 and the gear ring 504 are meshed with each other, the scraper 509 is connected to the outer wall of the gear ring 504, and the scraper 509 is attached to the inner wall of the metal bucket shell 502; The scraper 509 is provided with a cleaning trough 508, which penetrates the gear ring 504 and extends to the outside of the metal bucket shell 502. The bottom port of the cleaning trough 508 faces the top outer wall of the guide shell 8. The top outer wall of the guide shell 8 is fixedly connected with a collecting box 7, and a discharge port is opened on the collecting box 7. The purpose of the above arrangement is that when the third gear 11 rotates, it will drive the gear ring 504 to rotate. The scraper 509 is connected to the outer wall of the gear ring 504 and fits against the inner wall of the metal bucket shell 502. As the gear ring 504 rotates, the scraper 509 cleans the inner wall of the metal bucket shell 502. The cleaned material can enter the collecting box 7 fixedly connected to the top outer wall of the guide shell 8 through the cleaning trough 508, and finally be discharged through the discharge port on the collecting box 7.

[0032] When in use, the quartz sand raw material enters from the feed port at the top of the first shell 1. Inside the first shell 1, the crushing component 2 crushes the entered quartz sand. The larger particles of quartz sand can be crushed into smaller particles by crushing. The crushed quartz sand falls on the screen 4 at the bottom of the first shell 1. The screen 4 plays a role of preliminary screening. Small particles of quartz sand will pass through the screen 4 and fall into the interior of the electromagnetic separation structure, while larger quartz sand that does not pass through the screen 4 is discharged through the outlets on both sides of the bottom of the first shell 1. The quartz sand falling from the bottom outlet of the first shell 1 enters the electromagnetic separation structure in the electric field component 5 inside the second shell 3. Since there are conductive impurities in the quartz sand, such as some metal minerals such as sodium, aluminum, and iron, when the electrode 501 is energized, an electromagnetic field is generated inside the metal bucket 502. The electromagnetic and conductive properties of the metal minerals in the quartz sand are used to separate the quartz sand. Aluminum is also a metal with high conductivity, and is relatively light and low in cost. It is often used in situations where good conductivity is required. Quartz sand itself is not a metal mineral and does not have conductivity, thereby improving the purity of the quartz sand. The second motor 601 drives the rotating shaft 603 and the fan blades 602 to rotate. During the rotation of the fan blades 602, the airflow is guided from the bottom to the top from the bottom port of the guide shell 8. The airflow enters the metal bucket shell 502 through the air inlet 503, blows to the small conical shell 507, and then is discharged through the exhaust port 510. The small conical shell 507 and the large conical shell 505 are arranged so that the top slopes of the two facilitate the flow of materials. The small conical shell 507 blocks and guides the airflow. The quartz sand at the bottom of the metal bucket shell 502 is guided to the exhaust port 510 for discharge under the blowing of the airflow. The discharged quartz sand particles are discharged through the discharge conduit 9, thereby realizing the screening of quartz sand and metal mineral impurities. In the process of the rotating shaft 603 rotating and driving the cleaning structure through the transmission structure, the third gear 11 obtains a smaller rotation speed, so that the cleaning structure can clean the impurities on the inner wall of the metal bucket shell 502 at a moderately slow speed to prevent the quartz sand flowing through from being cleaned at too fast a speed. When the third gear 11 rotates, it will drive the gear ring 504 to rotate. The scraper 509 is connected to the outer wall of the gear ring 504 and fits against the inner wall of the metal bucket shell 502. As the gear ring 504 rotates, the scraper 509 cleans the inner wall of the metal bucket shell 502. The cleaned materials can enter the collection box 7 fixedly connected to the top outer wall of the guide shell 8 through the cleaning trough 508, and finally be discharged through the discharge port on the collection box 7.

[0033] Embodiment 8, based on the above embodiment, provides a method for preparing a high-purity quartz sand device; A method for preparing a high-purity quartz sand device comprises the following steps: Step 1: first operate the crushing component 2, the electric field component 5 and the airflow component 6, introduce the quartz sand through the top feed port of the first shell 1, and the crushing component 2 crushes the blocky quartz sand; Step 2: The crushed quartz sand is preliminarily screened through the screen 4, the granular quartz sand passes through the screen 4, and some blocky quartz sand is discharged through the bottom port of the first shell 1; Step 3: The electromagnetic separation structure adsorbs the metal minerals in the quartz sand, and the quartz sand flows to the bottom of the electromagnetic separation structure. The airflow component 6 blows the quartz sand, and the discharge guide structure guides and discharges the blown quartz sand; In step 4, the airflow component 6 drives the cleaning structure to operate slowly through the transmission structure, cleans the metal minerals adsorbed by the electromagnetic separation structure, and guides them to the outside of the electromagnetic separation structure. The metal minerals flow along the top slope of the guide shell 8 to the inside of the collection box 7 for collection.

[0034] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high-purity quartz sand preparation device, comprising a first housing (1) and a crushing assembly (2), characterized in that: The bottom of the first shell (1) is connected to the second shell (3); A feed port is provided on the top of the first shell (1), and the crushing assembly (2) is installed inside the first shell (1); A screen (4) is installed at the bottom of the first shell (1), and outlets are arranged on both sides of the bottom of the first shell (1); An electric field component (5) is installed inside the second shell (3), and the electric field component (5) comprises an electromagnetic sorting structure, a cleaning structure, and a discharge guiding structure; The electromagnetic separation structure is installed on the inner side of the second housing (3); The bottom of the electromagnetic separation structure is connected to a flow guide shell (8), and an airflow component (6) is installed on the inner side of the bottom of the flow guide shell (8); The cleaning structure is installed on the electromagnetic sorting structure; A transmission structure is provided between the airflow component (6) and the cleaning structure; The discharge guide structure is installed on the inner side of the bottom of the electromagnetic separation structure, and the quartz sand flows to the bottom of the discharge guide structure. The airflow component (6) blows the quartz sand, and the discharge guide structure guides the blown quartz sand to be discharged.

2. A high-purity quartz sand preparation device according to claim 1, characterized in that: A support frame is installed at the bottom of the second shell (3) for supporting the device; The crushing assembly (2) comprises a first motor (201), the first motor (201) being mounted on the outer wall of the first shell (1), two grinding wheels (202) being rotatably connected to the inner wall of the first shell (1), the two grinding wheels (202) being meshed with each other, and the output shaft of the first motor (201) being connected to the rotation shaft of one of the grinding wheels (202); A transmission wheel (12) is respectively mounted on the rotating shafts of the two rolling wheels (202); the transmission wheel (12) is located outside the first housing (1); and a transmission belt (13) is connected between the two transmission wheels (12).

3. A high-purity quartz sand preparation device according to claim 2, characterized in that: A sliding groove is provided at the bottom of the first shell (1), a transmission rod (14) is rotatably connected to the outer wall of one of the transmission wheels (12), a connecting rod (15) is rotatably connected to the bottom of the transmission rod (14), the connecting rod (15) is connected to the screen (4) via the sliding groove, and both ends of the screen (4) are inclined toward the outlet.

4. A high-purity quartz sand preparation device according to claim 1, characterized in that: The electromagnetic separation structure comprises an electrode (501) and a metal bucket shell (502); the metal bucket shell (502) is mounted on the inner wall of the second shell (3); two electrodes (501) are mounted on the outer wall of the metal bucket shell (502); the two electrodes (501) penetrate the second shell (3) and extend to the outside of the second shell (3); and the metal bucket shell (502) is made of aluminum.

5. A high-purity quartz sand preparation device according to claim 4, characterized in that: The bottom of the metal bucket shell (502) is provided with a cone shape, and a plurality of air inlets (503) are provided at the bottom of the metal bucket shell (502). The guide shell (8) is connected to the outer wall of the metal bucket shell (502), and the guide shell (8) is connected to the interior of the metal bucket shell (502) through the air inlets (503).

6. A high-purity quartz sand preparation device according to claim 5, characterized in that: The airflow component (6) comprises a second motor (601), the second motor (601) is mounted at the bottom of the support frame, a rotating shaft (603) is mounted on the top of the second motor (601), and a fan blade (602) is mounted on the outer wall of the rotating shaft (603).

7. A high-purity quartz sand preparation device according to claim 6, characterized in that: The discharge guide structure comprises a large conical shell (505), a connecting pipe (506) and a small conical shell (507); the connecting pipe (506) is installed at the bottom of the metal bucket shell (502) and penetrates through the connecting pipe (506); the top of the connecting pipe (506) is connected to the small conical shell (507); the top of the small conical shell (507) is connected to a fixing rod; the top of the fixing rod is fixedly connected to the large conical shell (505); and the top of the connecting pipe (506) is provided with an exhaust port (510); The top of the rotating shaft (603) is rotatably connected to and communicated with the bottom of the connecting pipe (506), and a discharge conduit (9) is rotatably connected to the outer wall of the bottom of the rotating shaft (603); The middle portion of the discharge conduit (9) is annular, the discharge conduit (9) is connected to the rotating shaft (603) via an annular structure, and the discharge conduit (9) passes through the guide shell (8) and extends to the outside of the guide shell (8).

8. A high-purity quartz sand preparation device according to claim 7, characterized in that: A first gear (604) is mounted on the outer wall of the rotating shaft (603); the transmission structure comprises a second gear (10) and a third gear (11); a connecting shaft is fixedly connected between the second gear (10) and the third gear (11); the second gear (10) and the first gear (604) are meshed with each other; the diameter of the first gear (604) is smaller than the diameter of the second gear (10); and the diameter of the third gear (11) is smaller than the diameter of the first gear (604).

9. A high-purity quartz sand preparation device according to claim 8, characterized in that: The cleaning structure comprises a gear ring (504) and a scraper (509); the gear ring (504) is rotatably connected to the metal bucket shell (502); the third gear (11) and the gear ring (504) are meshed with each other; the scraper (509) is connected to the outer wall of the gear ring (504); and the scraper (509) is attached to the inner wall of the metal bucket shell (502); The scraper (509) is provided with a cleaning trough (508), the cleaning trough (508) penetrates the gear ring (504) and extends to the outside of the metal bucket shell (502), the bottom port of the cleaning trough (508) faces the top outer wall of the guide shell (8), the top outer wall of the guide shell (8) is fixedly connected to a collecting box (7), and the collecting box (7) is provided with a discharge port.

10. A method for preparing high-purity quartz sand according to any one of claims 1 to 9, characterized in that: Follow these steps: Step 1: first operate the crushing component (2), the electric field component (5) and the airflow component (6), introduce quartz sand through the top feed port of the first shell (1), and the crushing component (2) crushes the blocky quartz sand; Step 2: The crushed quartz sand is preliminarily screened through a screen (4); the granular quartz sand passes through the screen (4), and some blocky quartz sand is discharged through the bottom port of the first shell (1); Step 3: The electromagnetic separation structure adsorbs the metal minerals in the quartz sand, and the quartz sand flows to the bottom of the electromagnetic separation structure. The airflow component (6) blows the quartz sand, and the discharge guide structure guides the blown quartz sand to be discharged; In step 4, the airflow component (6) drives the cleaning structure to operate slowly through the transmission structure, cleans the metal minerals adsorbed by the electromagnetic separation structure, and guides them to the outside of the electromagnetic separation structure. The metal minerals flow along the top slope of the guide shell (8) to the inside of the collection box (7) for collection.

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