Grinding device for fused quartz particles

Abstract

The invention provides a grinding device for fused quartz particles, and relates to the technical field of quartz particle grinding, the grinding device comprises a grinding box, a discharging disc is arranged in the grinding box, a plurality of through discharging holes are formed in the bottom of the discharging disc, and a limiting ring located at the top of the discharging disc is arranged on the inner wall of the grinding box; a stirring and discharging assembly used for stirring the quartz particles in the limiting ring is arranged in the grinding box, a driving motor is arranged at the bottom of the grinding box, an inner grinding head located in the grinding box is arranged on an output shaft of the driving motor, an outer grinding disc is arranged on the inner wall of the grinding box, and a grinding cavity is formed between the inner grinding head and the outer grinding disc; a discharging assembly used for controlling the multiple discharging holes to conduct feeding or cutting off and guiding materials into the grinding cavity is arranged in the grinding box. The grinding device is reasonable in structure, the adding amount of materials can be controlled, and the grinding efficiency is high.

Description

Technical Field

[0001] The present invention relates to the technical field of quartz particle grinding, and specifically, to a grinding device for fused quartz particles. Background Art

[0002] Quartz ore is crushed, washed, and screened to make refined quartz sand; it is sintered at high temperature into a quartz ingot, cooled and sorted into quartz blocks; and then through crushing, magnetic separation, screening, etc., it becomes obtuse-angled fused quartz particles. When processing the fused quartz particles, a grinding device for fused quartz particles is required.

[0003] In the prior art, when the grinding device for fused quartz particles is in use, the feeding is generally added into the grinding device at one time, and the amount of quartz particles added cannot be controlled. Often, due to excessive feeding, the pressure of the grinding device is too high and it is damaged; at the same time, during grinding, the material cannot be concentrated and fall inside the grinding cavity, and the material is relatively dispersed, thus affecting the grinding efficiency. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a grinding device for fused quartz particles to solve the problems raised in the above background art. The structure of the present invention is reasonable, and it can control the amount of material added and has a high grinding efficiency.

[0005] To achieve the above purpose, the present invention is realized through the following technical solutions: A grinding device for fused quartz particles, comprising: A grinding box, inside which a blanking plate is arranged, the bottom of the blanking plate is provided with a plurality of through blanking holes, the inner wall of the grinding box is provided with a limiting ring located at the top of the blanking plate, and inside the grinding box, a stirring and blanking assembly is arranged for stirring the quartz particles inside the limiting ring. The bottom of the grinding box is provided with a driving motor, and on the output shaft of the driving motor, there is an inner grinding head located inside the grinding box. The inner wall of the grinding box is provided with an outer grinding disc, and a grinding cavity is formed between the inner grinding head and the outer grinding disc. Inside the grinding box, a discharging assembly is arranged for controlling the on-off of the plurality of blanking holes, and the discharging assembly is configured to guide the material to the grinding cavity.

[0006] Further, the stirring and blanking assembly includes a stirring motor arranged at the top of the grinding box, on the output shaft of the stirring motor, there is a rotating shaft located inside the limiting ring, and a plurality of stirring scraping plates are fixedly arranged on the outer wall of the rotating shaft.

[0007] Further, an inclined surface that slopes from the outer wall to the inner wall is provided at the top of the limit ring. The inner wall of the limit ring is placed outside multiple material discharge holes. The lower end surface of the stirring scraper at the lowermost side of the side wall of the rotating shaft is attached to the upper end surface of the material discharge tray. The side of the stirring scraper close to the inner wall of the limit ring is an arc surface and is attached to the inner wall of the limit ring.

[0008] Further, a plurality of moving grooves are symmetrically provided on the inner wall of the grinding box; The material discharging assembly includes a plurality of guiding holes symmetrically provided inside the grinding box and communicating with the moving grooves. A guiding column is arranged inside the guiding holes. An electric push rod connected to the guiding column is provided at the top of the grinding box. A connecting column connected to the guiding column is arranged inside the moving groove. A material guiding ring located above the inner grinding head is provided between the plurality of connecting columns. A conical material guiding plate is provided at the top of the material guiding ring. A plurality of top columns placed directly below the plurality of material discharge holes are provided at the top of the conical material guiding plate. A plug is provided at the top of the plurality of top columns and is located inside the material discharge holes. A limiting cavity is formed between the side wall of the material guiding ring and the inner wall of the grinding box. The bottom end of the limiting cavity is placed above the inlet end of the grinding cavity.

[0009] Further, an inclined groove that slopes downward is provided on the inner wall of the grinding box and is located below the moving groove. The inclined groove communicates with the moving groove. A conical plate is provided at the top of the inner grinding head. A baffle is provided on the side wall of the connecting column. The side wall of the baffle is attached to the inner wall of the grinding box.

[0010] Further, a plurality of discharge holes for conveying the material flowing out of the grinding cavity are provided at the bottom of the grinding box; An aggregate discharging assembly for guiding the material flowing out of the grinding cavity to the discharge holes is provided on the lower side of the inner wall of the grinding box; The aggregate discharging assembly includes a material receiving cylinder provided on the lower side of the inner wall of the grinding box. A material receiving groove is provided at the top of the material receiving cylinder. A plurality of through holes corresponding to the discharge holes are provided at the position of the bottom of the material receiving cylinder corresponding to the discharge holes. The through holes correspond to the discharge holes one by one. Scraping plates are symmetrically provided on the lower side of the inner wall of the material receiving cylinder. A connecting column is provided at the top of the scraping plate. A fixing column connected to the output shaft of the driving motor is provided on the side wall of the connecting column.

[0011] Further, the scraping plate includes a scraping block provided on the lower side of the inner wall of the material receiving cylinder. Connecting blocks that are attached to the inner wall of the material receiving cylinder are symmetrically provided on the side wall of the scraping block. The diameter of the through hole is the same as the diameter of the discharge hole.

[0012] Further, a material guiding assembly for guiding the material discharged from the discharge holes is provided at the bottom of the grinding box; The material guiding assembly includes a plurality of legs arranged at the bottom of the grinding box. A diversion plate that is located below the grinding box and slopes downward is provided between adjacent legs, and diversion grooves are arranged on the side wall of the diversion plate.

[0013] Further, a laser sensor is provided on the side wall of the grinding box directly below the connecting column. A PLC controller is arranged on the grinding box. An A / D converter is arranged at the input end of the PLC controller, and a D / A converter is arranged at the output end of the PLC controller. The laser sensor is electrically connected to the A / D converter, and the electric push rod is electrically connected to the D / A converter.

[0014] Further, a feed hopper is arranged at the top of the grinding box, and the feed hopper is communicated with the grinding box.

[0015] The beneficial effects achieved by the present invention with the above structure are as follows: With the present invention, the feeding assembly facilitates controlling the simultaneous feeding or cutting off of materials through multiple feeding holes, enabling control and adjustment of the amount of materials added during grinding, and avoiding the phenomenon that excessive feeding causes damage to the grinding device due to excessive pressure. At the same time, the feeding assembly diverts the materials to the grinding chamber, allowing the materials to be concentrated and dispersed into the grinding chamber, avoiding the dispersion of materials and improving the grinding efficiency. During feeding, the stirring and feeding assembly stirs the materials, facilitating the outflow of the materials along the feeding holes. Description of the Drawings

[0016] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, objectives, and advantages of the present invention will become more obvious: Figure 1 It is a three-dimensional view of a grinding device for fused quartz particles according to an embodiment of the present invention; Figure 2 It is a sectional three-dimensional view of a grinding device for fused quartz particles according to an embodiment of the present invention; Figure 3 It is a front sectional view of the feeding assembly of a grinding device for fused quartz particles before feeding according to an embodiment of the present invention; Figure 4 It is a front sectional view of the feeding assembly of a grinding device for fused quartz particles after feeding according to an embodiment of the present invention; Figure 5 It is a three-dimensional view of the connection between the connecting column and the baffle of a grinding device for fused quartz particles according to an embodiment of the present invention; Figure 6 It is a three-dimensional view of the connection between the stirring and feeding assembly and the feeding assembly of a grinding device for fused quartz particles according to an embodiment of the present invention; Figure 7A perspective view of a feeding assembly in a grinding device for fused quartz particles according to an embodiment of the present invention; Figure 8 A perspective view of the connection between the stirring and feeding assembly and the feeding tray in a grinding device for fused quartz particles according to an embodiment of the present invention; Figure 9 A perspective view of the connection between the inner grinding head and the aggregate discharge assembly in a grinding device for fused quartz particles according to an embodiment of the present invention; Figure 10 A perspective view of the connection between the driving motor and the aggregate discharge assembly in a grinding device for fused quartz particles according to an embodiment of the present invention; Figure 11 A schematic diagram of a control system according to an embodiment of the present invention; In the figure: 1, grinding box; 1001, moving groove; 1002, inclined groove; 1003, discharge hole; 2, feed hopper; 3, stirring and feeding assembly; 31, stirring motor; 32, rotating shaft; 33, stirring scraper; 4, feeding assembly; 41, electric push rod; 42, guiding hole; 43, guiding column; 44, plug; 45, top column; 46, conical guiding plate; 47, connecting column; 48, guiding ring; 49, limiting cavity; 5, guiding assembly; 51, supporting leg; 52, guiding plate; 521, guiding groove; 6, conical plate; 7, inner grinding head; 8, outer grinding disc; 9, driving motor; 10, aggregate discharge assembly; 101, receiving cylinder; 1011, through hole; 1012, receiving groove; 102, connecting column; 103, fixed column; 104, scraping plate; 1041, scraping block; 1042, connecting block; 11, feeding tray; 111, feeding hole; 12, limiting ring; 13, laser sensor; 14, baffle; 15, grinding cavity. Detailed implementation manners

[0017] To make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0018] As Figure 1 shown, the present invention provides a technical solution: a grinding device for fused quartz particles, including: The grinding box 1 is internally provided with a blanking tray 11. The bottom of the blanking tray 11 is provided with a plurality of through blanking holes 111. The inner wall of the grinding box 1 is provided with a limiting ring 12 located above the blanking tray 11. The inside of the grinding box 1 is provided with a stirring and blanking assembly 3 for stirring the quartz particles inside the limiting ring 12. The bottom of the grinding box 1 is provided with a driving motor 9. The output shaft of the driving motor 9 is provided with an inner grinding head 7 located inside the grinding box 1. The inner wall of the grinding box 1 is provided with an outer grinding disc 8. A grinding cavity 15 is formed between the inner grinding head 7 and the outer grinding disc 8. The inside of the grinding box 1 is provided with a feeding assembly 4 for controlling the on-off of the plurality of blanking holes 111, and the feeding assembly 4 is configured to divert the material into the grinding cavity 15. This design can control the simultaneous feeding or cutting off of the plurality of blanking holes 111 through the feeding assembly 4, and can control and adjust the feeding amount during grinding, avoiding the phenomenon that the grinding device is damaged due to excessive feeding pressure; at the same time, through the feeding assembly 4, the material is diverted to the grinding cavity 15, and the material can be concentrated and dispersed into the grinding cavity 15, avoiding material dispersion and improving the grinding efficiency; during blanking, the material is stirred by the stirring and blanking assembly 3, facilitating the material to flow out along the blanking holes 111.

[0019] Refer to Figure 2 、 Figure 6 and Figure 8 The stirring and blanking assembly 3 includes a stirring motor 31 arranged on the top of the grinding box 1. The output shaft of the stirring motor 31 is provided with a rotating shaft 32 located inside the limiting ring 12. A plurality of stirring scrapers 33 are fixedly arranged on the outer wall of the rotating shaft 32. This design drives the rotating shaft 32 to rotate through the operation of the stirring motor 31 in the stirring and blanking assembly 3. The rotating shaft 32 drives the stirring scrapers 33 to rotate. The stirring scrapers 33 rotate to stir the material inside the limiting ring 12, and the material flows out along the blanking holes 111.

[0020] Refer to Figure 2 and Figure 3 The top of the limiting ring 12 is provided with an inclined surface that slopes from the outer wall to the inner wall. The inner wall of the limiting ring 12 is placed outside the plurality of blanking holes 111. The lower end surface of the stirring scraper 33 at the lowermost part of the side wall of the rotating shaft 32 is attached to the upper end surface of the blanking tray 11. The side of the stirring scraper 33 close to the inner wall of the limiting ring 12 is an arc surface and is attached to the inner wall of the limiting ring 12. In this design, the stirring scraper 33 is attached to the inner wall of the limiting ring 12 and the top of the blanking tray 11, so as to facilitate all the material to flow out from the blanking holes 111 while being stirred, avoiding material residue.

[0021] Refer to Figure 2 、 Figure 6 and Figure 7 The inner wall of the grinding box 1 is symmetrically provided with a plurality of moving grooves 1001; The feeding assembly 4 includes a plurality of guiding holes 42 symmetrically formed inside the grinding box 1 and communicating with the moving groove 1001. A guiding column 43 is arranged inside the guiding hole 42. An electric push rod 41 connected to the guiding column 43 is arranged on the top of the grinding box 1. A connecting column 47 connected to the guiding column 43 is arranged inside the moving groove 1001. A guiding ring 48 located above the inner grinding head 7 is arranged between the plurality of connecting columns 47. A conical guiding plate 46 is arranged on the top of the guiding ring 48. A top column 45 corresponding to the number and position of the material discharging holes 111 is arranged on the top of the conical guiding plate 46. A plug 44 located inside the material discharging hole 111 is arranged on the top of the plurality of top columns 45. A limiting cavity 49 is formed between the side wall of the guiding ring 48 and the inner wall of the grinding box 1. The bottom end of the limiting cavity 49 is placed above the inlet end of the grinding cavity 15. This design drives the guiding column 43 to move along the guiding groove through the operation of the electric push rod 41 in the feeding assembly 4. The movement of the guiding column 43 drives the movement of the connecting column 47. The movement of the connecting column 47 drives the guiding ring 48 to move in the vertical direction. The movement of the guiding ring 48 in the vertical direction drives the conical guiding plate 46 to move in the vertical direction. The movement of the conical guiding plate 46 drives the plug 44 on the top column 45 to move in the vertical direction. The plug 44 can block or unblock the material discharging hole 111, which is convenient for controlling and adjusting the feeding amount, and avoids the phenomenon that the grinding device is damaged due to excessive feeding pressure. When feeding, the material flows out from the material discharging hole 111 and moves downward along the conical surface on the top of the conical guiding plate 46, and then is guided to the limiting cavity 49 between the guiding ring 48 and the inner wall of the grinding box 1. The material is concentrated above the grinding cavity 15 along the limiting cavity 49 and is concentrated and dispersed into the grinding cavity 15, avoiding the dispersion of the material and improving the grinding efficiency. Among them, the top of the plug 44 is conical, and the upper end surfaces of the plurality of plugs 44 are on the same horizontal plane. When blocking the material discharging hole 111, the plug 44 is completely placed inside the material discharging hole 111.

[0022] Referring to Figure 3 , Figure 4 and Figure 5 , an inclined groove 1002 which is arranged below the moving groove 1001 and slopes downward is formed on the inner wall of the grinding box 1. The inclined groove 1002 communicates with the moving groove 1001. A conical plate 6 is arranged on the top of the inner grinding head 7. A baffle 14 is arranged on the side wall of the connecting column 47. The side wall of the baffle 14 is attached to the inner wall of the grinding box 1. This design avoids the material remaining inside the moving groove 1001 through the inclined groove 1002; avoids the material piling up on the top of the inner grinding head 7 through the conical plate 6, and the material can fall into the grinding cavity 15 along the conical surface on the top of the conical plate 6; blocks the material through the baffle 14 to avoid the material entering the moving groove 1001 from above the moving column when the moving column moves downward.

[0023] Referring to Figure 4 , Figure 9 and Figure 10, a plurality of discharge holes 1003 for conveying the material flowing out of the grinding cavity 15 are formed in the bottom of the grinding box 1; An aggregate discharging assembly 10 for guiding the material flowing out of the grinding cavity 15 to the discharge holes 1003 is arranged on the lower side of the inner wall of the grinding box 1; The aggregate discharging assembly 10 includes a material receiving cylinder 101 arranged on the lower side of the inner wall of the grinding box 1. A material receiving groove 1012 is formed at the top of the material receiving cylinder 101. A plurality of through holes 1011 are formed at the position of the bottom of the material receiving cylinder 101 corresponding to the discharge holes 1003. The through holes 1011 correspond to the discharge holes 1003 one by one. Scraping plates 104 are symmetrically arranged on the lower side of the inner wall of the material receiving cylinder 101. A connecting column 102 is arranged at the top of the scraping plate 104. A fixing column 103 connected to the output shaft of the driving motor 9 is arranged on the side wall of the connecting column 102. Through the material receiving groove 1012 in the aggregate discharging assembly 10, the material flowing out from the lower end of the grinding cavity 15 is received into the material receiving cylinder 101. The material is discharged from the inside of the grinding box 1 along the through holes 1011 and the blanking holes 111. While the inner grinding head 7 is driven by the driving motor 9 to rotate, the fixing column 103 is driven to rotate. The fixing column 103 drives the connecting column 102 to rotate. The connecting column 102 drives the scraping plate 104 to rotate along the material receiving groove 1012 and scrape the material at the through holes 1011. The scraping plate 104 makes a circular motion so that the material completely flows out from the through holes 1011, avoiding material residue. Among them, the material receiving groove 1012 is configured as an annular groove inclined obliquely upward from bottom to top.

[0024] Refer to Figure 2 and Figure 10 , the scraping plate 104 includes a scraping block 1041 arranged on the lower side of the inner wall of the material receiving cylinder 101. Connecting blocks 1042 fitting with the inner wall of the material receiving cylinder 101 are symmetrically arranged on the side wall of the scraping block 1041. The diameter of the through holes 1011 is the same as that of the discharge holes 1003. By using the scraping block 1041 and the connecting blocks 1042, the scraping plate 104 is conveniently fitted with the inner wall of the material receiving cylinder 101, so that the material inside the material receiving cylinder 101 can be scraped, and the material completely separates from the inside of the material receiving cylinder 101 through the through holes 1011.

[0025] Refer to Figure 1 and Figure 2 , a material guiding assembly 5 for guiding the material discharged from the discharge holes 1003 is arranged at the bottom of the grinding box 1; The material guiding assembly 5 includes a plurality of legs 51 arranged at the bottom of the grinding box 1. A deflector 52 which is located below the grinding box 1 and inclined downward is arranged between adjacent legs 51. A diversion groove 521 is arranged on the side wall of the deflector 52. This design facilitates the material flowing out from the discharge holes 1003 to fall on the diversion groove 521 and flow out. Among them, soft materials such as silica gel are arranged on the lower side of the inner wall of the diversion groove 521 according to requirements, avoiding the material from rebounding and separating from the diversion groove 521 when contacting the inner wall of the diversion groove 521.

[0026] Referring to Figure 3 、 Figure 4 and Figure 11 ,a laser sensor 13 is provided on the side wall of the grinding box 1 directly below the connecting column 47. A PLC controller is provided on the grinding box 1. The input end of the PLC controller is provided with an A / D converter, and the output end of the PLC controller is provided with a D / A converter. The laser sensor 13 is electrically connected to the A / D converter, and the electric push rod 41 is electrically connected to the D / A converter. With this design, when the laser sensor 13 detects a value greater than the set value, it indicates that the material is accumulating, and the feeding component 4 needs to be used to stop the feeding through the feeding hole 111. When the laser sensor 13 detects a value less than or equal to the set value, the feeding component 4 enables the feeding hole 111 to continue feeding. Among them, since the laser sensor 13 is placed directly below the connecting column 47 and the detection port of the laser sensor 13 is placed directly below the connecting column 47, it is ensured that when the material moves downward, it is dispersed to both sides of the connecting column 47 under the action of the side wall of the connecting column 47, and the downward moving material will not appear at the detection port, improving the detection accuracy. When the material in the grinding cavity 15 becomes more, it will slowly accumulate and be detected by the detection port of the laser sensor 13.

[0027] Referring to Figure 1 ,a feeding hopper 2 is provided at the top of the grinding box 1. The feeding hopper 2 is communicated with the grinding box 1, which improves the rationality of this design.

[0028] Referring to Figures 1 - 11 ,as an embodiment of the present invention: when it is necessary to grind quartz particle materials, the materials are sent from the feeding hopper 2 into the grinding box 1 and fall inside the feeding tray 11. The stirring motor 31 works to drive the rotating shaft 32 to rotate, and the rotating shaft 32 rotates to drive the stirring scraper 33 to rotate. The materials can be evenly distributed inside the feeding tray 11 and placed inside the limiting ring 12. At the same time, the driving motor 9 is made to work to drive the inner grinding head 7 to rotate. When the laser sensor 13 detects a value less than or equal to the set value, it indicates that the material is in a shortage state at this time. Thus, a signal is sent to the PLC controller to make the electric push rod 41 in the feeding component 4 work to drive the guiding column 43 to move along the guiding groove. The movement of the guiding column 43 drives the movement of the connecting column 47. The movement of the connecting column 47 drives the guiding ring 48 to move in the vertical direction. The movement of the guiding ring 48 in the vertical direction drives the conical guiding plate 46 to move in the vertical direction. The movement of the conical guiding plate 46 drives the plug 44 on the top column 45 to move downward, so as to keep the feeding hole 111 unblocked. The materials fall on the conical surface at the top of the conical guiding plate 46 and move downward under the action of the rotation of the stirring scraper 33 along the multiple feeding holes 111. Then the materials are guided to the limiting cavity 49 between the guiding ring 48 and the inner wall of the grinding box 1. The materials are concentrated above the grinding cavity 15 along the limiting cavity 49, and the materials can be concentrated and dispersed into the grinding cavity 15, avoiding the dispersion of the materials and improving the grinding efficiency.

[0029] When the laser sensor 13 detects a value greater than the set value, it indicates that the material is piling up. Then, the electric push rod 41 in the material discharging assembly 4 needs to work to drive the plug 44 to move upward to block the material discharging hole 111, and the material discharging hole 111 stops discharging materials.

[0030] The addition amount of the material can be controlled and adjusted through the plug 44, so as to avoid the phenomenon that the excessive feeding causes damage to the grinding device due to excessive pressure.

[0031] The ground material enters the inside of the material receiving groove 1012 in the aggregate discharging assembly 10 from the bottom end of the grinding chamber 15. The material is concentrated into the material receiving cylinder 101, and then discharged from the grinding box 1 along the through hole 1011 and the discharging hole 1003, and falls into the flow guiding groove 521 of the flow guiding plate 52. Since the flow guiding groove 521 is inclined, it is convenient to collect the material in the horizontal direction; at the same time, while the driving motor 9 drives the inner grinding head 7 to rotate, it drives the fixed column 103 to rotate. The fixed column 103 drives the connecting column 102 to rotate, and the connecting column 102 drives the scraping plate 104 to rotate along the material receiving groove 1012 to scrape the material at the through hole 1011. The scraping plate 104 makes a circular motion so that the material completely flows out from the through hole 1011 to avoid residue.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed claims. In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A grinding device for fused silica particles, characterized in that: include: A grinding box (1), wherein a material discharge plate (11) is arranged inside the grinding box (1), a plurality of through material discharge holes (111) are arranged at the bottom of the material discharge plate (11), a limiting ring (12) located at the top of the material discharge plate (11) is arranged on the inner wall of the grinding box (1), a stirring material discharge component (3) for stirring quartz particles inside the limiting ring (12) is arranged inside the grinding box (1), a driving motor (9) is arranged at the bottom of the grinding box (1), an inner grinding head (7) located inside the grinding box (1) is arranged on the output shaft of the driving motor (9), an outer grinding disc (8) is arranged on the inner wall of the grinding box (1), a grinding chamber (15) is formed between the inner grinding head (7) and the outer grinding disc (8), and a material discharge component (4) for controlling the opening and closing of the plurality of material discharge holes (111) is arranged inside the grinding box (1), and the material discharge component (4) is configured to guide the material into the grinding chamber (15).

2. The grinding device for fused silica particles according to claim 1, characterized in that: The stirring and feeding assembly (3) comprises a stirring motor (31) arranged on the top of the grinding box (1), the output shaft of the stirring motor (31) is provided with a rotating shaft (32) located inside the limiting ring (12), and the outer wall of the rotating shaft (32) is fixedly provided with a plurality of stirring scrapers (33).

3. The grinding device for fused silica particles according to claim 2, characterized in that: The top of the limiting ring (12) is provided with an inclined surface inclined from the outer wall to the inner wall, the inner wall of the limiting ring (12) is placed outside the plurality of discharge holes (111), the lower end surface of the stirring scraper (33) at the bottom of the side wall of the rotating shaft (32) is in contact with the upper end surface of the discharge plate (11), and the side of the stirring scraper (33) close to the inner wall of the limiting ring (12) is an arc-shaped surface and is in contact with the inner wall of the limiting ring (12).

4. The grinding device for fused silica particles according to claim 1, characterized in that: The inner wall of the grinding box (1) is symmetrically provided with a plurality of movable grooves (1001); The discharge assembly (4) comprises a plurality of guide holes (42) symmetrically arranged inside the grinding box (1) and connected to the movable groove (1001); a guide column (43) is arranged inside the guide hole (42); an electric push rod (41) connected to the guide column (43) is arranged on the top of the grinding box (1); a connecting column (47) connected to the guide column (43) is arranged inside the movable groove (1001); and a connecting rod (47) located above the inner grinding head (7) is arranged between the plurality of connecting columns (47). A guide ring (48) is provided on the top of the guide ring (48), a conical guide plate (46) is provided on the top of the conical guide plate (46), a plurality of top columns (45) are provided on the top of the conical guide plate (46) and are located directly below the plurality of feed holes (111), a plug (44) is provided on the top of the plurality of top columns (45) and is located inside the feed holes (111), a limiting cavity (49) is formed between the side wall of the guide ring (48) and the inner wall of the grinding box (1), and the bottom end of the limiting cavity (49) is located above the inlet end of the grinding cavity (15).

5. The grinding device for fused silica particles according to claim 4, characterized in that: The inner wall of the grinding box (1) is provided with an inclined groove (1002) which is arranged below the movable groove (1001) and is inclined downward, and the inclined groove (1002) is connected to the movable groove (1001). A conical plate (6) is provided on the top of the inner grinding head (7), and a baffle (14) is provided on the side wall of the connecting column (47), and the side wall of the baffle (14) is in contact with the inner wall of the grinding box (1).

6. The grinding device for fused silica particles according to claim 1, characterized in that: The bottom of the grinding box (1) is provided with a plurality of discharge holes (1003) for conveying the material flowing out of the grinding chamber (15); A material collection discharge assembly (10) for directing material flowing out of the grinding chamber (15) to a discharge hole (1003) is provided on the lower side of the inner wall of the grinding box (1); The aggregate discharge assembly (10) comprises a material receiving barrel (101) arranged on the lower side of the inner wall of the grinding box (1), a material receiving groove (1012) is provided on the top of the material receiving barrel (101), a plurality of through holes (1011) are provided at the bottom of the material receiving barrel (101) at positions corresponding to the discharge holes (1003), the through holes (1011) corresponding one to one with the discharge holes (1003), a scraper plate (104) is symmetrically provided on the lower side of the inner wall of the material receiving barrel (101), a connecting column (102) is provided on the top of the scraper plate (104), and a fixing column (103) connected to the output shaft of the drive motor (9) is provided on the side wall of the connecting column (102).

7. The grinding device for fused silica particles according to claim 6, characterized in that: The scraper plate (104) comprises a scraper block (1041) arranged on the lower side of the inner wall of the receiving barrel (101), and a connecting block (1042) which fits the inner wall of the receiving barrel (101) is symmetrically arranged on the side wall of the scraper block (1041), and the diameter of the through hole (1011) is the same as the diameter of the discharge hole (1003).

8. The grinding device for fused silica particles according to claim 6, characterized in that: The bottom of the grinding box (1) is provided with a material guiding component (5) for guiding the material discharged from the discharge hole (1003); The material guide assembly (5) comprises a plurality of legs (51) arranged at the bottom of the grinding box (1), a guide plate (52) located below the grinding box (1) and inclined downward is arranged between adjacent legs (51), and a guide groove (521) is arranged on a side wall of the guide plate (52).

9. The grinding device for fused silica particles according to claim 4, characterized in that: The side wall of the grinding box (1) is provided with a laser sensor (13) located directly below the connecting column (47); the grinding box (1) is provided with a PLC controller; an A / D converter is provided at the input end of the PLC controller; a D / A converter is provided at the output end of the PLC controller; the laser sensor (13) is electrically connected to the A / D converter; and the electric push rod (41) is electrically connected to the D / A converter.

10. The grinding device for fused silica particles according to claim 1, characterized in that: A feed hopper (2) is provided on the top of the grinding box (1), and the feed hopper (2) is connected to the grinding box (1).

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