Device for preparing high-purity quartz sand by a composite method

Abstract

The utility model discloses a kind of device for preparing high-purity quartz sand by composite method, it is related to quartz sand purification technical field.The utility model includes bottom plate, sieve frame, mounting bracket, rotary drum one, rotary drum two and motor, the bottom plate upper end is provided with mounting bracket, rotary drum one and rotary drum two are rotatably installed in the mounting bracket interior, two The inner wall of support base is provided with weak magnet and strong magnet, the mounting bracket upper end is provided with prestorage frame, the prestorage frame lower end is provided with the feeding port located in rotary drum one upper side side, the bottom plate upper side is provided with sieve frame, the sieve frame inner wall is provided with screen, the screen lower side is provided with bottom groove.The utility model is classified magnetism to quartz sand ore particle by setting weak magnet and strong magnet, avoid weak magnetic mineral and strong magnetic mineral to be inextricably linked with the entrainment phenomenon of non-magnetic mineral, to solve the problem of non-selective mixed can significantly affect separation efficiency and product quality, simultaneously because of the non-magnetic particle of wrapping adjacent causes raw material waste.

Description

Technical Field

[0001] This utility model relates to the field of quartz sand purification technology, and in particular to an apparatus for preparing high-purity quartz sand by a composite method. Background Technology

[0002] Quartz sand is a mineral material with silicon dioxide as its main component, widely distributed in nature. It has stable physicochemical properties, high melting point, corrosion resistance, and good insulation, making it a core raw material in photovoltaics, semiconductors, optical glass, electronic packaging, and high-end ceramics. Natural quartz sand contains metal ions (Fe, Al, Ti), inclusions (gas and liquid impurities), and amorphous SiO2, requiring deep purification to meet high-end demands.

[0003] Chinese patent discloses an apparatus for preparing high-purity quartz sand using a composite method (authorization announcement number CN221662612U). This patented technology includes a preparation box, an inner box, and an iron removal component. The inner box is movably installed inside the preparation box, and the iron removal component is movably installed on the inner side of the inner box. Quartz sand is placed into the inner box, and iron removal is performed by the iron removal component. The iron removal component includes a lifting frame, a mounting box, a small motor, a rotating plate, a magnetic tube, a threaded sleeve, and a threaded rod. The lifting frame is movably installed on both sides of the inner box, and the mounting box is fixedly installed on one side of the lifting frame. The small motor is fixedly installed inside the mounting box. This invention utilizes the coordinated use of the small motor, the rotating plate, and the magnetic tube. The small motor drives the rotating plate to rotate, simultaneously driving the magnetic tube to rotate. The rotation of the magnetic tube moves its bottom to its top, adsorbing iron impurities. This facilitates the adsorption of more iron impurities on the surface of the magnetic tube, increasing the iron removal effect.

[0004] However, this patent still has shortcomings. Compared with the existing document 202011330003.3, this patent can only collect quartz sand and cannot improve the processing of quartz sand such as iron removal. Iron removal is achieved by adding magnetic tubes. In order to maintain the effective adsorption of magnetic minerals, strong magnets are used to magnetically adsorb strong and weak magnetic minerals. This will produce the phenomenon of non-magnetic or weakly magnetic mineral particles being entrained by magnetic minerals. This non-selective mixing will significantly affect the sorting efficiency and product quality. At the same time, because the adjacent non-magnetic particles (such as quartz and feldspar) are carried out and screened out, raw materials are wasted. Therefore, those skilled in the art have provided a device for preparing high-purity quartz sand by a composite method to solve the problems mentioned in the background art. Utility Model Content

[0005] Technical solution

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to an apparatus for preparing high-purity quartz sand using a composite method, comprising a base plate, a screen frame, a mounting frame, a first rotating drum, a second rotating drum, and a motor. The mounting frame is located at the upper end of the base plate. The first and second rotating drums are rotatably mounted inside the mounting frame. A rotating sleeve is located at one end of each of the first and second rotating drums. A ring-shaped support seat is located on the inner wall of the rear end of the mounting frame, inside the rotating sleeve. Weak magnets and strong magnets, arranged in a ring array inside the first rotating drum and inside the second rotating drum, respectively, are located on the inner walls of the two support seats. A pre-storage frame is located above the rotating drums at the upper end of the mounting frame. A feeding port is located on one side above the first rotating drum at the lower end of the pre-storage frame. A screen frame is located above the base plate. A screen mesh with an inclined upper surface is located on the inner wall of the screen frame. A sieving section is located above the screen mesh and below the screen mesh, located inside the screen frame with an inclined lower inner wall and opposite in direction to the discharge port of the sieving section.

[0008] Furthermore, the lower end of the pre-storage frame is provided with a guide plate that is sleeved on the outside of the first rotating drum and whose lower end is located on one side of the upper end of the second rotating drum. The guide plate is provided with a guide channel on the side facing the first rotating drum.

[0009] Specifically, the guide plate limits the mineral particles that pass through the first screen of the rotating drum, and guides the mineral particles that have been initially screened to be poured onto the outer wall of one side of the second screen through the guide channel.

[0010] Furthermore, a discharge area corresponding to the gap of the weak magnet is provided on one side of the outer wall of the rotating drum, and a guide frame is provided on one side of the rotating drum, which is sleeved on the outside of the discharge area and has an inclined lower inner wall.

[0011] Specifically, the weak magnetic field of the mineral particles disappears temporarily as they pass through the unloading area, and the strong magnetic minerals adsorbed on the outer wall of the rotating drum detach and are received and transported by the guide frame.

[0012] Furthermore, a discharge area two corresponding to the gap of the strong magnet is provided on one side of the outer wall of the rotating drum two, and a guide frame two sleeved on the outer side of the discharge area two with the lower inner wall inclined is provided on one side of the rotating drum two. The rear ends of the guide frame one and the guide frame two are connected to a guide pipe with the same opening direction.

[0013] Specifically, the mineral particles are initially screened by the weak magnetic field in the second rotating drum. When they pass through the second unloading zone, the strong magnetic field disappears, and the weak magnetic minerals adsorbed on the outer wall of the second rotating drum are released. They are received and guided by the second guide frame, and the strong magnetic minerals inside the first guide frame and the weak magnetic minerals inside the second guide frame are transported to the outside in the same direction through the guide pipe.

[0014] Furthermore, a motor and a bearing bracket are provided inside the front end of the mounting frame. The output end of the motor is rotatably mounted inside the bearing bracket. A drive wheel is provided at the output end of the motor. A driven wheel is sleeved on the outer side of one rotating end of the rotating drum. A belt is sleeved on the outer side of both the drive wheel and the driven wheel.

[0015] Specifically, the motor output end is supported by a bearing bracket, which improves stability when the motor output end rotates. When the motor output end rotates, it drives the driven wheel to rotate through the linkage between the drive wheel and the belt, which in turn drives the drum to rotate.

[0016] Furthermore, a drive gear is sleeved on the outer wall of the first rotating cylinder, a driven gear meshing with the drive gear is sleeved on the outer wall of the second rotating cylinder, and balls arranged in a circular array and rolling against the inner wall of the rotating sleeve are rotatably mounted on the outer wall of the support base.

[0017] Specifically, when the first rotating drum rotates, it drives the driving gear to rotate. Because the driving gear meshes with the driven gear, it drives the second rotating drum to rotate in the opposite direction.

[0018] Furthermore, the motor output end is provided with a cam, the screen frame is provided with side plates at both the front and rear ends, symmetrically distributed springs are provided between the side plates and the bottom plate, a sliding sleeve is embedded in the side plate, a guide rod is provided at the upper end of the bottom plate, located inside the spring and slidably inserted into the sliding sleeve, a fixing rod is provided at the upper end of the side plate, a steel ball is rotatably installed inside the upper end of the fixing rod, the motor output end is sleeved with a cam with a different outer wall radius, and a stroke groove is provided inside the cam that is sleeved on the outer side of the upper end of the fixing rod;

[0019] Specifically, when the motor output rotates, the fixed rod is squeezed by the cam, and the squeezing resistance and friction are reduced by the steel ball. When the cam moves on the outer wall of the fixed rod, it applies an increasing squeezing force to the fixed rod. The squeezing force is applied to the screen frame and the spring through the side plate. The fixed rod and the steel ball are located inside the stroke groove and release the squeezing of the spring. The spring drives the screen frame to vibrate by storing its own elastic energy. The spring slides inside the sliding sleeve through the guide rod, guiding the longitudinal movement of the side plate and the screen frame, while preventing the spring from deviating.

[0020] Beneficial effects

[0021] Compared with existing technologies, the advantages of this utility model are:

[0022] This invention involves conveying quartz sand mineral particles to one side of the outer wall of a rotating drum. As the drum rotates, internal weak magnets attract strongly magnetic minerals (such as magnetite) from the mineral particles, preventing them from agglomerating and carrying weak magnetic impurities. After the weak magnetic mineral particles and minerals are initially magnetically separated, they are conveyed to one side of the outer wall of a rotating drum that rotates in the opposite direction. Internal strong magnets then separate the weak magnetic minerals, capture fine magnetic particles, and intercept residual entrainment, thus avoiding the waste of raw materials due to mineral entrainment and improving the quality of the ore after screening.

[0023] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a front-view three-dimensional structural diagram of the present invention;

[0026] Figure 2 This is a top-view three-dimensional structural diagram of the present invention;

[0027] Figure 3 This is a front-view three-dimensional structural diagram of the sieve frame of this utility model;

[0028] Figure 4 This is a front-view three-dimensional structural diagram of the rotating cylinder one and rotating cylinder two of this utility model;

[0029] Figure 5 This is a front-view three-dimensional structural diagram of the motor of this utility model;

[0030] Figure 6 This is a schematic diagram of the three-dimensional structure of the cam in the main cross-section of this utility model;

[0031] Figure 7 This is a top-section three-dimensional structural diagram of the rotating sleeve of this utility model.

[0032] The attached diagram lists the components represented by each number as follows:

[0033] 1. Base plate; 2. Screen frame; 3. Screen mesh; 4. Mounting frame; 5. Guide plate; 6. Pre-storage frame; 7. Side plate; 8. Guide frame one; 9. Fixing rod; 10. Steel ball; 11. Sliding sleeve; 12. Spring; 13. Guide rod; 14. Bottom groove; 15. Rotary drum one; 16. Ball bearing; 17. Guide channel; 18. Rotating sleeve; 19. Feed port; 20. Discharge area one; 21. Weak magnet; 22. Rotary drum two; 23. Strong magnet; 24. Discharge area two; 25. Guide frame two; 26. Guide pipe; 27. Motor; 28. Drive wheel; 29. ​​Driven wheel; 30. Belt; 31. Bearing bracket; 32. Drive gear; 33. Driven gear; 34. Cam; 35. Stroke groove; 36. Support seat. Detailed Implementation

[0034] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0035] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0036] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0037] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0038] Example

[0039] Please see Figure 1-7As shown, this embodiment is an apparatus for preparing high-purity quartz sand using a composite method, including a base plate 1, a sieve frame 2, a mounting frame 4, a first rotating drum 15, a second rotating drum 22, and a motor 27. The mounting frame 4 is located on the upper end of the base plate 1. The first rotating drum 15 and the second rotating drum 22 are rotatably mounted inside the mounting frame 4. A rotating sleeve 18 is located at one end of each of the first rotating drum 15 and the second rotating drum 22. An annular support seat 36 is located inside the rotating sleeve 18 on the inner wall of the rear end of the mounting frame 4. The inner walls of the two support seats 36 are respectively provided with an annular array of components distributed on the rotating drums. A weak magnet 21 is located inside the first 15 and a strong magnet 23 is located inside the second 22 of the rotating drum. A pre-storage frame 6 is provided at the upper end of the mounting frame 4 above the rotating drum. A feeding port 19 is provided at the lower end of the pre-storage frame 6 on one side above the first 15 of the rotating drum. A screen frame 2 is provided above the bottom plate 1. A screen mesh 3 with an inclined upper surface is provided on the inner wall of the screen frame 2. A screening section is provided above the screen mesh 3 inside the screen frame 2. A bottom groove 14 is provided below the screen mesh 3 inside the screen frame 2 with an inclined lower inner wall and opposite to the direction of the discharge port of the screening section.

[0040] The lower end of the pre-storage frame 6 is provided with a guide plate 5 that is sleeved on the outside of the first rotating drum 15 and whose lower end is located on one side of the upper end of the second rotating drum 22. The guide plate 5 is provided with a guide channel 17 on the side facing the first rotating drum 15.

[0041] A discharge area 20 corresponding to the gap of the weak magnet 21 is provided on one side of the outer wall of the rotating drum 15. A guide frame 8 is provided on one side of the rotating drum 15, which is sleeved on the outside of the discharge area 20 and has an inclined lower inner wall.

[0042] The outer wall of one side of the rotating drum 22 is provided with a discharge area 24 corresponding to the gap of the strong magnet 23. The rotating drum 22 is provided with a guide frame 25 sleeved on the outside of the discharge area 24 and with the lower inner wall inclined. The rear ends of the guide frame 1 8 and the guide frame 25 are both connected to a guide pipe 26 with the same opening direction.

[0043] The front end of the mounting bracket 4 is equipped with a motor 27 and a bearing bracket 31. The output end of the motor 27 is rotatably mounted inside the bearing bracket 31.

[0044] In this embodiment, the crushed quartz sand raw material (particle size 0.5~2mm) is put into the pre-storage frame 6 and evenly spread onto the surface of the first rotating drum 15 through the feeding port 19. The motor 27 is started to drive the first rotating drum 15 to rotate clockwise. The weak magnetic field of the weak magnet 21 adsorbs the strong magnetic minerals (such as magnetite and ilmenite). The non-magnetic and weak magnetic minerals slide into the area of ​​the second rotating drum 22 due to gravity along the guide plate 5. The second rotating drum 22 rotates in the opposite direction through the meshing of the drive gear and the driven gear 33. The strong magnetic field of the strong magnet 23 captures the weak magnetic minerals (such as hematite and limonite). The remaining non-magnetic quartz sand falls into the screening section of the screen frame 2.

[0045] In the unloading zone 20 of the first rotating drum 15, the strong magnetic minerals are released to the guide frame 8 through the gap of the weak magnet 21 due to the loss of magnetic force. Similarly, in the unloading zone 24 of the second rotating drum 22, the weak magnetic minerals are released to the guide frame 25 through the gap of the strong magnet 23. Both are discharged together through the guide pipe 26, realizing the centralized recovery of magnetic impurities. The first rotating drum 15 uses a weak magnetic field to preferentially adsorb the strong magnetic minerals and avoid their agglomeration and entrainment of weak magnetic particles. The second rotating drum 22 uses a strong magnetic field to accurately capture residual weak magnetic impurities, thus improving the sorting efficiency.

[0046] The outer wall of the rotating drum is equipped with a discharge zone corresponding to the gap between the magnets. When the minerals rotate to the non-magnetic area, they automatically fall off without the need for manual scraping, reducing equipment wear. The guide channel 17 guides the minerals after the first-stage separation to slide precisely into the surface of the second rotating drum 22, avoiding secondary mixing. The ball bearings 16 on the outer wall of the support base 36 rotate with the inner wall of the rotating sleeve 18 to reduce mechanical friction. Traditional single-stage magnetic separation causes magnetic minerals to entrain non-magnetic particles (quartz, feldspar) due to the adsorption of strong magnetic fields. By using a weak magnetic field first and a strong magnetic field supplement, the waste of quartz sand raw materials is reduced.

[0047] Example

[0048] Please see Figure 1-7 As shown, a drive wheel 28 is provided at the output end of the motor 27, and a driven wheel 29 is sleeved on the outer side of the rotating end of the drum 15. Both the drive wheel 28 and the driven wheel 29 are sleeved on the outer side of a belt 30.

[0049] A drive gear 32 is sleeved on the outer wall of the first rotating cylinder 15, and a driven gear 33 that meshes with the drive gear 32 is sleeved on the outer wall of the second rotating cylinder 22. A ball bearing 16 arranged in a ring array and rolling against the inner wall of the rotating sleeve 18 is rotatably installed on the outer wall of the support base 36.

[0050] The output end of the motor 27 is provided with a cam 34. The front and rear ends of the screen frame 2 are provided with side plates 7. The side plates 7 and the bottom plate 1 are provided with symmetrically distributed springs 12. The side plates 7 are embedded with sliding sleeves 11. The bottom plate 1 is provided with a guide rod 13 located inside the springs 12 and slidably inserted into the sliding sleeves 11. The side plates 7 are provided with a fixing rod 9. The fixing rod 9 is rotatably installed with steel balls 10 inside. The output end of the motor 27 is sleeved with cams 34 with different outer wall radii. The cams 34 are provided with a stroke groove 35 sleeved on the outer side of the upper end of the fixing rod 9.

[0051] In this embodiment, the motor 27 drives the cam 34 to periodically squeeze the fixed rod 9 at the upper end of the outer wall side plate 7 of the screen frame 2. The spring 12 rebounds, causing the screen 3 to vibrate at high frequency, thus screening the mineral particles that fall onto the screen 3. Large mineral particles are discharged through the opening in the screening section of the inclined surface of the screen 3, while small quartz sand particles enter the bottom trough 14 for collection. They are guided by the inclined surface of the lower inner wall of the bottom trough 14 and discharged through the reverse discharge port. The first rotating drum 15 and the second rotating drum 22 rotate in opposite directions through the meshing of the driving gear 32 and the driven gear 33, which prolongs the residence time of the mineral particles in the magnetic field, enhances the separation effect, and at the same time avoids the second rotating drum 22 from rotating in opposite directions. The additional energy consumption of the rotating mechanism is reduced by the motor 27 driving the cam 34 to squeeze the side plate 7 of the screen frame 2. The spring 12 stores energy and releases it to generate high-frequency vibration, which effectively breaks up mineral agglomerates and improves the screening efficiency compared to traditional fixed screens. The inclined design of the screen 3 accelerates the sliding of qualified large sand particles, and the reverse inclination of the bottom trough 14 ensures the directional discharge of small particles and prevents cross-contamination. Through the integrated design of multi-stage magnetic separation, vibrating screening and automatic unloading, the pain points of serious entrainment, low sorting efficiency and high energy consumption in traditional quartz sand purification are solved. The magnetic impurities are removed in stages. The composite method of weak magnetic and strong magnetic separation and screening and grading provides raw material guarantee for the preparation of high-quality quartz sand.

[0052] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0053] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model 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 this utility model should be included within the protection scope of this utility model.

Claims

1. An apparatus for preparing high-purity quartz sand using a composite method, characterized in that: The system includes a base plate (1), a screen frame (2), a mounting frame (4), a rotating drum one (15), a rotating drum two (22), and a motor (27). The base plate (1) is provided with a mounting frame (4) at its upper end. The rotating drum one (15) and the rotating drum two (22) are rotatably mounted inside the mounting frame (4). A rotating sleeve (18) is provided at one end of the rotating drum one (15) and the rotating drum two (22). The inner wall of the rear end of the mounting frame (4) is provided with a ring-shaped support seat (36) located inside the rotating sleeve (18). The inner walls of the two support seats (36) are respectively provided with weak magnets (21) arranged in a ring array inside the rotating drum one (15). The mounting frame (4) is equipped with a pre-storage frame (6) located above the rotating drum, and a feeding port (19) located on one side above the rotating drum (15) is provided at the lower end of the pre-storage frame (6). A screen frame (2) is provided above the bottom plate (1). A screen mesh (3) with an inclined upper surface is provided on the inner wall of the screen frame (2). A screening section located inside the screen frame (2) is provided above the screen mesh (3). A bottom groove (14) located inside the screen frame (2) with an inclined lower inner wall and opposite to the direction of the discharge port of the screening section is provided below the screen mesh (3).

2. The apparatus for preparing high-purity quartz sand by a composite method according to claim 1, characterized in that: The lower end of the pre-storage frame (6) is provided with a guide plate (5) that is sleeved on the outside of the first rotating cylinder (15) and the lower end is located on the upper side of the second rotating cylinder (22). The guide plate (5) is provided with a guide channel (17) on the side facing the first rotating cylinder (15).

3. The apparatus for preparing high-purity quartz sand by a composite method according to claim 1, characterized in that: The outer wall of one side of the rotating drum (15) is provided with a discharge area (20) corresponding to the gap of the weak magnet (21), and a guide frame (8) is provided on one side of the rotating drum (15) and sleeved on the outside of the discharge area (20) with the lower inner wall inclined.

4. The apparatus for preparing high-purity quartz sand by a composite method according to claim 3, characterized in that: The outer wall of the rotating drum (22) is provided with a discharge area (24) in the gap of the strong magnet (23). The rotating drum (22) is provided with a guide frame (25) on one side, which is sleeved on the outside of the discharge area (24) and has an inclined lower inner wall. The rear ends of the guide frame (8) and the guide frame (25) are connected to a guide pipe (26) with the same opening direction.

5. The apparatus for preparing high-purity quartz sand by a composite method according to claim 1, characterized in that: The front end of the mounting bracket (4) is equipped with a motor (27) and a bearing bracket (31). The output end of the motor (27) is rotatably mounted inside the bearing bracket (31). The output end of the motor (27) is equipped with a drive wheel (28). The outer side of the rotating end of the rotating drum (15) is fitted with a driven wheel (29). Both the drive wheel (28) and the driven wheel (29) are fitted with belts (30).

6. The apparatus for preparing high-purity quartz sand by a composite method according to claim 1, characterized in that: The outer wall of the first rotating cylinder (15) is fitted with a drive gear (32), the outer wall of the second rotating cylinder (22) is fitted with a driven gear (33) that meshes with the drive gear (32), and the outer wall of the support base (36) is rotatably fitted with balls (16) arranged in a ring array and rolling against the inner wall of the rotating sleeve (18).

7. The apparatus for preparing high-purity quartz sand by a composite method according to claim 1, characterized in that: The output end of the motor (27) is provided with a cam (34), and the screen frame (2) is provided with side plates (7) at both the front and rear ends. A symmetrically distributed spring (12) is provided between the side plate (7) and the bottom plate (1). A sliding sleeve (11) is embedded inside the side plate (7). A guide rod (13) located inside the spring (12) and slidably inserted into the sliding sleeve (11) is provided at the upper end of the bottom plate (1). A fixing rod (9) is provided at the upper end of the side plate (7). A steel ball (10) is rotatably installed inside the upper end of the fixing rod (9). A cam (34) with different outer wall radii is sleeved at the output end of the motor (27). A stroke groove (35) sleeved on the outer side of the upper end of the fixing rod (9) is provided inside the cam (34).

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