A screening device for removing impurities from high-purity fused quartz

Abstract

The present invention discloses a screening device for removing impurities from high-purity molten quartz, which relates to the technical field of quartz screening, and includes: a protective cover, which is used for screening the high-purity molten quartz during the process of removing impurities; a support assembly, which is located on one side of the interior of the protective cover and is slidably connected to the protective cover; and a screening assembly, which is located on one side of the support assembly and is movably connected to the protective cover. In the present invention, since the first latch is engaged and connected with the second latch at the top of the inner top of the toggle plate, the toggle plate, the support rod, and the L-shaped bracket are carried to move to the right, and vice versa, when the first latch is engaged and connected with the second latch at the bottom, it can be carried to move to the left, and the support ring is pushed to the right or moves frequently to the right, so as to impact the screen drum, make it vibrate under force, and utilize the vibration force while utilizing the rotation force, so as to avoid clogging or hindering the screening rate when the screening material content is high, and at the same time, the grinding roller is used to pre-grind the material, so that the obtained material is more delicate.

Description

Technical Field

[0001] The invention relates to the technical field of quartz screening, in particular to screening equipment for removing impurities from high-purity fused quartz. Background Art

[0002] Quartz sand is quartz particles made by crushing quartz stone. It is hard, wear-resistant and has stable chemical properties. It is widely used in glass manufacturing, casting, ceramics, fireproof materials, ferrosilicon smelting, metallurgical flux, construction, chemical industry, plastics, rubber, abrasives and filter materials. In addition, high-purity quartz sand is also used in high-end manufacturing industries such as semiconductors and chip manufacturing. The quartz sand impurity removal process is to remove mineral impurities from the raw quartz sand through scrubbing and desludging, magnetic separation, chute gravity separation, flotation, pickling or a combination of several methods to obtain high-purity quartz sand with particle size and impurity content that meet the requirements.

[0003] In order to further improve the impurity separation ability of molten quartz blank, a screening device for removing impurities from high-purity molten quartz is developed (see patent number: 202311192223.8 for details), including: a base; an equipment chassis assembly, the equipment chassis assembly is connected to the base; a blank refinement device, the blank refinement device is connected to the inside of the equipment chassis assembly; a collection plate rack assembly, the collection plate rack assembly is connected to the inside of the equipment chassis assembly; a primary screening device, the primary screening device is connected to the inside of the equipment chassis assembly; a screening box assembly, the screening box assembly is connected to the inside of the equipment chassis assembly; wherein, the screening box assembly includes: a secondary screening device, the secondary screening device is connected to the inside of the equipment chassis assembly; an iron collecting device, the iron collecting device is connected to the secondary screening device. The equipment can refine the molten quartz blank, effectively remove internal iron, perform multiple composite magnetic separations, and can automatically clean the screening device.

[0004] However, the existing quartz impurity removal screening equipment generally only uses vibration screening during the screening process. If the screening material content is high, it is easy to clog or hinder the screening rate, resulting in poor screening effect. If there are materials with larger particles during the screening process, it will cause incomplete screening, thereby reducing the utilization rate. Summary of the invention

[0005] The purpose of the present invention is to provide a high-purity fused quartz impurity removal screening device in order to solve the problem that the existing quartz impurity removal screening equipment generally only adopts vibration screening during the screening process. If the screening material content is high, it is easy to clog or hinder the screening rate, thereby making the screening effect poor. If there are materials with larger particles during the screening process, it will cause incomplete screening, thereby reducing the utilization rate.

[0006] To achieve the above object, the present invention provides the following technical solution: a screening device for removing impurities from high-purity fused quartz, comprising:

[0007] Protective cover, used for screening during the process of removing impurities from high-purity fused quartz;

[0008] A support assembly is located at one side of the interior of the protective cover and is slidably connected to the protective cover;

[0009] A screening assembly is located on one side of the supporting assembly and is movably connected to the protective cover;

[0010] A grinding assembly, located inside the screening assembly;

[0011] Support legs are provided at both ends of one side of the bottom of the protective cover, and support plates are provided at both ends of the other side of the bottom of the protective cover, one end of one group of the support plates is rotatably connected to a rotating disk, and a plurality of groups of first latch teeth are evenly arranged on the top of the rotating disk, and a limiting block is fixed on the end surface of one group of the support plates above and below the rotating disk, and a feed hopper extending into the interior thereof is provided on the top of one side of the protective cover, and a limiting pressing block is provided at the bottom end of one side of the interior of the protective cover, and the support assembly includes a support ring and a toggle plate, and a A socket extending to the other side is provided, an annular groove is provided on the outside of one side of the support ring and the end face close to the socket, limiting plates are provided on the top and bottom of both ends of the support ring, a movable groove is provided at the middle position of one end of the toggle plate, and multiple groups of second teeth matching the first teeth are evenly provided at the top and bottom of the movable groove, and strip limiting grooves matching the limiting blocks are provided at the top and bottom of one end of the toggle plate and above and below the movable groove, a support rod is provided on the side of the top of the toggle plate away from the annular groove, and one end of the support rod A plurality of groups of L-shaped brackets extending to the inside of the protective cover are evenly arranged, and one side of the L-shaped bracket is fixedly connected to the other side of the support ring. The screening component includes a screen drum, and an annular limiting groove is arranged on one side of the screen drum. A feed hopper extending to one side of the inside of the screen drum is arranged on the top of the annular limiting groove. An annular cover is arranged on the side of the screen drum away from the annular limiting groove. A plurality of groups of internal teeth are evenly arranged on the inner wall of the annular cover. The grinding component includes grinding rollers. The number of the grinding rollers is seven groups, and one side of the seven groups of grinding rollers is provided with a support rod, and one of the outer sides of the support rod A sleeve is provided on both sides, an elastic part is provided on one side of the support rod and inside the sleeve, the sleeve is fixedly connected to one side of the inside of the screen cylinder, a rotating rod extending to the inside of the annular cover is provided on the other side of the grinding roller, a first gear is provided on the outside of the rotating rod, a motor is installed at the middle position of one side of the protective cover, the output end of the motor extends to the inside of the protective cover and is docked with one group of the rotating rods, a rotating shaft is rotatably connected to the inside of the protective cover close to the support ring and located above the first gear, and a second gear is provided on the outside of the rotating shaft.

[0012] As a further solution of the present invention: a telescopic tube is provided at the bottom of the feed hopper and at the end surface adjacent to the protective cover and the screen drum, a limiting connecting ring is provided at the port of the telescopic tube away from the feed hopper, the screen drum is movably connected with the feed hopper and the telescopic tube through the mutual cooperation of the limiting connecting ring and the annular limiting groove, and the feed hopper is connected with the screen drum through the mutual cooperation of the telescopic tube and the feed port.

[0013] As a further solution of the present invention: the bottom of the second gear is meshedly connected with the top of one group of the first gears, the top of the second gear is meshedly connected with the top end of the inner tooth, and the annular cover is located inside the socket and is rotatably connected to the inside of the support ring through the socket.

[0014] As a further solution of the present invention: an annular slider matching the annular groove is provided on the side of the screen cylinder close to the support ring, and multiple groups of balls are evenly embedded on the outside of the annular slider. The screen cylinder is rotatably connected to the support ring through the mutual cooperation of the annular slider, the annular groove and the balls.

[0015] As a further solution of the present invention: both ends of the protective cover and the top and bottom of the side close to the support ring are provided with strip slide grooves matching the limit plates, and the protective cover is connected to the protective cover in a transverse sliding manner through the cooperation between the limit plates and the strip slide grooves.

[0016] As a further solution of the present invention: a motor is installed on the top of the other end of one group of the support plates, and the output end of the motor extends to one end of the support plate and is docked and connected with the middle position of one end of the rotating disk.

[0017] As a further solution of the present invention: an arc-shaped elastic piece is provided on one side of the limiting pressure block, one side of the arc-shaped elastic piece is fixedly connected to the bottom end of one side inside the protective cover, and the other side of the limiting pressure block is located inside the annular limiting groove and movably connected thereto.

[0018] As a further solution of the present invention: the rotating disk and the first latch tooth are located inside the movable groove, the rotating disk is meshed and connected with the toggle plate through the mutual cooperation of the first latch tooth and the second latch tooth, and the limit block is located inside the strip limit groove.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. Through the protective cover, support assembly, screening assembly and grinding assembly, when in use, the output end of the motor rotates under the action of electricity, and drives one group of grinding rollers to rotate. Since multiple groups of first gears are laterally meshed and connected, they can drive the other groups of grinding rollers to rotate, grind and crush the passing materials, so that the obtained quartz sand particles are finer, ensuring the stability of subsequent screening. At the same time, since the first gear is meshed and connected with the second gear, the second gear can be forced to rotate in the direction opposite to the rotation direction of the motor output end, and then since the second gear is meshed and connected with the inner gear, the annular cover and the screen drum can be driven to rotate under force, so that the materials ground by the grinding rollers can fall through the sieve holes on the screen drum. At the same time, due to the rotating screen drum, the materials inside it can be better screened out under the action of the rotating force, avoiding The materials are accumulated, and at the same time, the output end of the motor rotates under the action of electricity and drives the rotating disk and the first clamping tooth to rotate. Since the first clamping tooth is meshed and connected with the second clamping tooth at the top of the inner top of the toggle plate, the toggle plate, the support rod and the L-shaped bracket can be driven to move to the right. On the contrary, when the first clamping tooth is meshed and connected with the second clamping tooth at the bottom of the inner bottom of the toggle plate, the toggle plate, the support rod and the L-shaped bracket can be driven to move to the left, thereby pushing the support ring to the right or moving to the right frequently, thereby achieving the impact on the screen drum and causing it to vibrate under force, thereby utilizing the vibration force and the rotation force at the same time, avoiding blockage or hindering the screening rate when the screening material content is high, thereby achieving better screening effect, and at the same time using the grinding roller to pre-grind the material, so that the obtained material is finer, ensuring the completeness of its subsequent screening, thereby improving the utilization rate;

[0021] 2. A feed hopper is provided with a telescopic tube at the bottom, and the bottom of the telescopic tube is located inside the annular limit groove and is movably connected to the annular limit groove, so that the feed hopper can always be connected to the screen drum without being affected by shaking, and the material can be better introduced into the interior of the screen drum through the feed port, while ensuring that the screen drum can rotate normally, and the feed port rotated to the lower side position can be blocked by the provided limit pressure block, avoiding the material from being discharged from the position of the feed port, thereby ensuring the stability of its screening. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 It is a partial stereogram of the present invention;

[0024] Figure 3 It is a structural schematic diagram of the position-limiting and pressing block of the present invention;

[0025] Figure 4 It is a schematic structural diagram of the grinding assembly of the present invention;

[0026] Figure 5 It is a structural schematic diagram of the support assembly of the present invention;

[0027] Figure 6 For the present invention Figure 1 A magnified view of middle;

[0028] Figure 7 For the present invention Figure 2 Enlarged view of B.

[0029] In the figure: 1, protective cover; 101, support leg; 102, support plate; 103, rotating disk; 104, first latch; 105, limit block; 106, feed hopper; 107, limit pressure block; 2, support assembly; 201, support ring; 202, jack; 203, limit plate; 204, annular slide; 205, L-shaped bracket; 206, support rod; 207, toggle plate; 208, movable Groove; 209, second latching tooth; 2010, strip limiting groove; 3, screening assembly; 301, screen drum; 302, annular cover; 303, inner latching tooth; 304, annular limiting groove; 305, feed port; 4, grinding assembly; 401, grinding roller; 402, first gear; 403, motor; 404, rotating shaft; 405, second gear; 406, support rod; 407, elastic member; 408, sleeve. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of an embodiment of the present invention based on the overall structure of the present invention.

[0032] See also Figures 1 to 7 In an embodiment of the present invention, a screening device for removing impurities from high-purity fused quartz comprises:

[0033] A protective cover 1 is used for screening high-purity fused quartz during impurity removal;

[0034] The support assembly 2 is located at one side of the protective cover 1 and is slidably connected to the protective cover 1;

[0035] The screening assembly 3 is located on one side of the supporting assembly 2 and is movably connected to the protective cover 1;

[0036] The grinding assembly 4 is located inside the screening assembly 3;

[0037] Support legs 101 are provided at both ends of one side of the bottom of the protective cover 1, and support plates 102 are provided at both ends of the other side of the bottom of the protective cover 1, one end of one group of support plates 102 is rotatably connected to a rotating disk 103, and a plurality of first latch teeth 104 are evenly arranged on the top of the rotating disk 103. Limiting blocks 105 are fixed to the end faces of one group of support plates 102 above and below the rotating disk 103, and a feed hopper 106 extending to the interior thereof is provided at the top of one side of the protective cover 1, and a limiting pressing block 107 is provided at the bottom end of one side of the interior of the protective cover 1, and the supporting assembly 2 includes a supporting ring 201 and a toggle plate 207, a socket 202 extending to the other side thereof is provided at the middle position of one side of the supporting ring 201, and the outer part of one side of the supporting ring 201 and the end face of the supporting plate 107 are provided at the bottom end of the inner side of the protective cover 1. The end faces near the jack 202 are all provided with annular grooves 204, the tops and bottoms of both ends of the support ring 201 are all provided with limit plates 203, a movable groove 208 is provided at the middle position of one end of the toggle plate 207, and the top and bottom inside the movable groove 208 are evenly provided with multiple groups of second teeth 209 matching the first teeth 104, and the top and bottom of one end of the toggle plate 207 and above and below the movable groove 208 are all provided with strip limit grooves 2010 matching the limit blocks 105, and a support rod 206 is provided on the side of the top of the toggle plate 207 away from the annular groove 204, and one end of the support rod 206 is evenly provided with multiple groups of L-shaped brackets 205 extending to the inside of the protective cover 1, and one side of the L-shaped bracket 205 is connected to the support ring 201 The other side of the screen drum 301 is fixedly connected, the screening component 3 includes a screen drum 301, one side of the screen drum 301 is provided with an annular limiting groove 304, the top of the annular limiting groove 304 is provided with a feed hopper 305 extending to one side of the inner side of the screen drum 301, the side of the screen drum 301 away from the annular limiting groove 304 is provided with an annular cover 302, and the inner wall of the annular cover 302 is evenly provided with multiple groups of internal teeth 303, the grinding component 4 includes grinding rollers 401, the number of grinding rollers 401 is seven groups, and one side of the seven groups of grinding rollers 401 is provided with a support rod 406, one side of the outside of the support rod 406 is provided with a sleeve 408, one side of the support rod 406 and located inside the sleeve 408 is provided with an elastic member 407, and the sleeve 408 is fixedly connected to one side of the inner side of the screen drum 301 , the other side of the grinding roller 401 is provided with a rotating rod extending to the inside of the annular cover 302, and the outside of the rotating rod is provided with a first gear 402. A motor 403 is installed at the middle position of one side of the protective cover 1, and the output end of the motor 403 extends to the inside of the protective cover 1 and is connected to one of the rotating rods. The inside of the protective cover 1 is close to the side of the support ring 201 and is located above the first gear 402 and is rotatably connected with a rotating shaft 404. A second gear 405 is provided on the outside of the rotating shaft 404. The sleeve 408 and the elastic member 407 provide sufficient activity space for the movement of the rotating drum 301, so that it will not be affected by the rotation of the grinding roller 401 when it is moving. The grinding roller 401 only rotates without shaking left and right, and a plurality of groups of movable holes are provided on the left side of the rotating drum 301.The rotating rod on the grinding roller 401 is movably connected to the screen drum 301 through a movable hole, and a bearing is provided on the rotating rod, which is directly rotatably connected to one side of the inside of the protective cover 1 by the bearing.

[0038] Please refer to Figure 1 A telescopic tube is provided at the bottom of the feed hopper 106 and at the end surface adjacent to the protective cover 1 and the screen drum 301. A limiting connecting ring is provided at the end of the telescopic tube away from the feed hopper 106. The screen drum 301 is movably connected with the feed hopper 106 and the telescopic tube through the cooperation of the limiting connecting ring and the annular limiting groove 304. The feed hopper 106 is connected with the screen drum 301 through the cooperation of the telescopic tube and the feed port 305. When the screen drum 301 vibrates by using the telescopic tube, its feed port 305 can always be connected with the feed hopper 106.

[0039] Please refer to Figure 1 , 2 , 4 and 6, the bottom of the second gear 405 is meshed with the top of one group of the first gears 402, the top of the second gear 405 is meshed with the top of the inner tooth 303, the annular cover 302 is located inside the socket 202 and is rotatably connected to the inside of the support ring 201 through the socket 202.

[0040] Please refer to Figure 1 , 2 , 4 and 7, an annular slider matching the annular groove 204 is provided on one side of the screen drum 301 close to the support ring 201, and multiple groups of balls are evenly embedded on the outside of the annular slider. The screen drum 301 is rotatably connected to the support ring 201 through the cooperation of the annular slider, the annular groove 204 and the balls. The annular slider, the annular groove 204 and the balls cooperate with each other, so that the screen drum 301 is rotatably connected to the support ring 201 and the friction resistance generated during rotation is smaller.

[0041] Please refer to Figure 1 and 5 The two ends of the inside of the protective cover 1 and the top and bottom of the side close to the support ring 201 are both provided with strip slide grooves matching the limit plate 203. The protective cover 1 is connected to the protective cover 1 in a transverse sliding manner through the cooperation between the limit plate 203 and the strip slide groove, and the protective cover 1 is connected to the protective cover 1 in a transverse sliding manner by utilizing the cooperation between the limit plate 203 and the strip slide groove, so as to better support the support ring 201 so that it can only move left and right, and support the rotating drum 301 while moving left and right.

[0042] Please refer to Figure 1 and 6 A motor is installed on the top of the other end of one set of support plates 102, and the output end of the motor extends to one end of the support plate 102 and is docked with the middle position of one end of the rotating disk 103.

[0043] Please refer to Figure 1 and 6 An arc-shaped elastic member is provided on one side of the limiting pressure block 107, and one side of the arc-shaped elastic member is fixedly connected to the bottom end of one side inside the protective cover 1. The other side of the limiting pressure block 107 is located inside the annular limiting groove 304 and is movably connected thereto. The rotating disk 103 and the first latch tooth 104 are located inside the movable groove 208. The rotating disk 103 is meshed and connected with the toggle plate 207 through the mutual cooperation of the first latch tooth 104 and the second latch tooth 209, and the limiting block 105 is located inside the strip limiting groove 2010.

[0044] The working principle of the present invention is as follows: when in use, the output end of the motor 403 rotates under the action of electricity, and drives one group of grinding rollers 401 to rotate. Since the multiple groups of first gears 402 are meshed and connected horizontally, the other groups of grinding rollers 401 can be driven to rotate, and the passing materials are ground and crushed, so that the obtained quartz sand particles are finer, and the stability of subsequent screening is ensured. At the same time, since the first gear 402 is meshed and connected with the second gear 405, the second gear 405 can be forced to rotate in the direction opposite to the rotation direction of the output end of the motor 403, and then the second gear 405 is meshed and connected with the inner gear 303, so The annular cover 302 and the screen drum 301 can be driven to rotate under force, so that the materials ground by the grinding roller 401 can fall through the screen holes on the screen drum 301. At the same time, the rotating screen drum 301 can better screen out the materials inside it under the action of the rotating force, thereby avoiding material accumulation. At the same time, the output end of the motor rotates under the action of electricity and drives the rotating disk 103 and the first clamping tooth 104 to rotate. Since the first clamping tooth 104 is meshed and connected with the second clamping tooth 209 at the top of the inner top of the toggle plate 207, the toggle plate 207, the support rod 206, and the L-shaped bracket 205 can be driven to move to the right. On the contrary, the first clamping tooth 104 and the toggle plate 207 are meshed and connected. When the second latching tooth 209 at the bottom end of the movable plate 207 is engaged, the movable plate 207, the support rod 206 and the L-shaped bracket 205 can be moved to the left, thereby pushing the support ring 201 to move to the right or move to the right frequently, thereby achieving the impact on the screen drum 301, causing it to vibrate under force, thereby utilizing the vibration force and the rotation force at the same time, avoiding blockage or hindering the screening rate when the screening material content is high, thereby achieving a better screening effect, and at the same time using the grinding roller 401 to pre-grind the material, so that the obtained material is finer, ensuring the completeness of its subsequent screening, thereby improving the utilization rate, and By setting up the feed hopper 106, a telescopic tube is provided at the bottom of the feed hopper 106, and the bottom of the telescopic tube is located inside the annular limit groove 304 and is movably connected to the annular limit groove 304, so that the feed hopper 106 can always be connected to the screen drum 301 without being affected by shaking, and the material can be better introduced into the interior of the screen drum 301 through the feed port 305, while ensuring that the screen drum 301 can rotate normally, and the feed port 305 rotated to the lower side position can be blocked by the set limit pressure block 107, thereby avoiding the material from being discharged from the position of the feed port 305, thereby ensuring the stability of its screening.

[0045] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A screening device for removing impurities from high-purity fused quartz, characterized in that: include: A protective cover (1) is used for screening high-purity fused quartz during impurity removal; A support assembly (2) located on one side of the interior of the protective cover (1) and slidably connected to the protective cover (1); A screening assembly (3) is located on one side of the supporting assembly (2) and is movably connected to the protective cover (1); A grinding assembly (4) located inside the screening assembly (3); Support legs (101) are provided at both ends of one side of the bottom of the protective cover (1), and support plates (102) are provided at both ends of the other side of the bottom of the protective cover (1), one end of one group of the support plates (102) is rotatably connected to a rotating disk (103), a plurality of groups of first latching teeth (104) are evenly arranged on the top of the rotating disk (103), and limiting blocks (105) are fixed above and below the rotating disk (103) and on the end surface of one group of the support plates (102), a feed hopper (106) extending into the interior of the protective cover (1) is provided at the top of one side of the protective cover (1), and a limiting pressing block (107) is provided at the bottom end of one side of the interior of the protective cover (1), and the support assembly (2) comprises a support ring (201) and a support ring (201). A toggle plate (207), a socket (202) extending to the other side of the support ring (201) is provided at the middle position of one side, the support ring (201) has an annular groove (204) on the outside and the end face close to the socket (202) on one side, and limit plates (203) are provided at the top and bottom of both ends of the support ring (201), a movable groove (208) is provided at the middle position of one end of the toggle plate (207), and multiple groups of second teeth (209) matching the first teeth (104) are evenly provided at the top and bottom of the movable groove (208), and the top and bottom of one end of the toggle plate (207) and above and below the movable groove (208) are provided with teeth matching the limit block (105). The movable plate (207) is provided with a supporting rod (206) on the side of the top away from the annular slide groove (204), and one end of the supporting rod (206) is evenly provided with a plurality of groups of L-shaped brackets (205) extending to the inside of the protective cover (1), and one side of each of the L-shaped brackets (205) is fixedly connected to the other side of the supporting ring (201), and the screening assembly (3) comprises a screen cylinder (301), one side of the screen cylinder (301) is provided with an annular limiting groove (304), and the top of the annular limiting groove (304) is provided with a feed port (305) extending to one side of the inside of the screen cylinder (301), and the side of the screen cylinder (301) away from the annular limiting groove (304) is provided with an annular cover ( 302), a plurality of groups of internal teeth (303) are evenly arranged on the inner wall of the annular cover (302), the grinding assembly (4) comprises grinding rollers (401), the number of the grinding rollers (401) is seven, and one side of the seven groups of grinding rollers (401) is provided with a support rod (406), one side of the outside of the support rod (406) is provided with a sleeve (408), one side of the support rod (406) and inside the sleeve (408) is provided with an elastic member (407), the sleeve (408) is fixedly connected to one side of the inside of the screen drum (301), the other side of the grinding rollers (401) is provided with a rotating rod extending to the inside of the annular cover (302), and the outside of the rotating rod is provided with a first gear (402),A motor (403) is installed at a middle position on one side of the protective cover (1), the output end of the motor (403) extends into the interior of the protective cover (1) and is butt-connected to one of the groups of the rotating rods, a rotating shaft (404) is rotatably connected to the interior of the protective cover (1) near the support ring (201) and located above the first gear (402), a second gear (405) is arranged outside the rotating shaft (404), the bottom of the second gear (405) is meshed with the top of one of the groups of the first gears (402), and the second gear (405) is connected to the first gear (402). The top of the wheel (405) is meshedly connected with the top of the inner latching tooth (303); the annular cover (302) is located inside the insertion hole (202) and is rotatably connected to the inside of the support ring (201) through the insertion hole (202); the rotating disk (103) and the first latching tooth (104) are located inside the movable groove (208); the rotating disk (103) is meshedly connected with the toggle plate (207) through the mutual cooperation of the first latching tooth (104) and the second latching tooth (209); and the limit block (105) is located inside the strip-shaped limit groove (2010).

2. A screening device for removing impurities from high-purity fused quartz according to claim 1, characterized in that: A telescopic tube is provided at the bottom of the feed hopper (106) and at the end surface adjacent to the protective cover (1) and the screen drum (301); a limit connection ring is provided at the end of the telescopic tube away from the feed hopper (106); the screen drum (301) is movably connected to the feed hopper (106) and the telescopic tube through the cooperation of the limit connection ring and the annular limit groove (304); and the feed hopper (106) is connected to the screen drum (301) through the cooperation of the telescopic tube and the feed port (305).

3. A screening device for removing impurities from high-purity fused quartz according to claim 1, characterized in that: An annular sliding block matching the annular sliding groove (204) is provided on one side of the screen drum (301) close to the support ring (201), and multiple groups of rolling balls are evenly embedded on the outside of the annular sliding block. The screen drum (301) is rotatably connected to the support ring (201) through the cooperation of the annular sliding block, the annular sliding groove (204) and the rolling balls.

4. A screening device for removing impurities from high-purity fused quartz according to claim 1, characterized in that: Both ends of the protective cover (1) and the top and bottom of one side close to the support ring (201) are provided with strip-shaped sliding grooves matching the limit plate (203); the support ring (201) is connected to the protective cover (1) in a transverse sliding manner through the cooperation between the limit plate (203) and the strip-shaped sliding grooves.

5. The high-purity fused quartz impurity removal screening device according to claim 1, characterized in that: A motor is installed on the top of the other end of one group of the support plates (102), and the output end of the motor extends to one end of the support plate (102) and is butt-connected to the middle position of one end of the rotating disk (103).

6. A screening device for removing impurities from high-purity fused quartz according to claim 1, characterized in that: An arc-shaped elastic member is provided on one side of the limiting pressing block (107), one side of the arc-shaped elastic member is fixedly connected to the bottom end of one side inside the protective cover (1), and the other side of the limiting pressing block (107) is located inside the annular limiting groove (304) and is movably connected thereto.

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