Pearl sand fine grading grinding equipment
By integrating crushing, fine grinding, and fine grinding into a perlite fine grading and grinding equipment, the problems of low grinding efficiency and uneven particle size in existing equipment are solved, and efficient and uniform perlite powder preparation is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINYANG JINHUI METALLURGICAL NEW THERMAL INSULATION MATERIAL CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-05-15
AI Technical Summary
Existing perlite grinding equipment is inefficient during the grinding process and cannot guarantee particle uniformity, resulting in inconsistent particle size and a mixture of powder and debris in the finished product, which cannot meet the requirements of high-end application scenarios.
This pearl sand fine grading and grinding equipment integrates crushing, fine grinding and fine grinding. It achieves graded grinding of pearl sand through a combination of annular pressure plate, crushing teeth, sieve plate, fine grinding seat and fine grinding roller. Combined with motor drive and spiral conveying blades, it ensures stable input.
It improves the uniformity of perlite powder particle size, avoids rework, increases powder production efficiency and finished product quality, and simplifies the operation process.
Smart Images
Figure CN224237032U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of perlite processing technology, and in particular to a perlite fine grading and grinding equipment. Background Technology
[0002] In modern industrial production, perlite is widely used in various fields such as casting, horticulture, chemical industry, and thermal insulation materials due to its excellent properties such as light weight, heat insulation, and sound insulation. As various industries continue to raise the quality requirements of perlite products, higher standards are also being set for the performance of perlite grinding equipment.
[0003] While existing traditional perlite grinding equipment can meet the basic requirement of grinding perlite into powder, it still has at least the following shortcomings in actual use: Most perlite grinding equipment uses a single grinding method, such as relying solely on impact or crushing, resulting in low grinding efficiency and difficulty in ensuring that the perlite particles are fully ground into uniform fine powder. The finished powder often has particles of different sizes and a mixture of powder and debris, which cannot meet the requirements of high-end applications for uniform particle size and fineness of perlite powder. Subsequent screening tools are needed to screen out unqualified particles for rework, increasing working time and labor.
[0004] Therefore, we propose a fine grading and grinding equipment for perlite to solve the above problems. Utility Model Content
[0005] The purpose of this application is to provide a fine grading and grinding equipment for perlite, which has an integrated operation that can sequentially crush, finely grind and finely grind perlite, realizes a fine grading and grinding process for perlite, effectively improves the uniformity of the particle size of the finished powder, avoids rework, and improves the efficiency and quality of powder production.
[0006] The above-mentioned technical objective of this application is achieved through the following technical solution: a fine grading and grinding equipment for perlite, comprising a machine body and a grinding seat fixedly installed inside the machine body. The bottom of the machine body is an open structure, and a support seat is fixedly installed on the top of the machine body. A perlite container is fixedly installed on the top of the support seat. A feeding port is opened at the top of the perlite container. A feeding pipe is fixedly installed at the center of the bottom of the perlite container, and the bottom end of the feeding pipe extends into the machine body. A vertical shaft is rotatably installed inside the perlite container, and a spiral conveying blade is fixedly installed on the vertical shaft. The bottom end of the spiral conveying blade extends into the feeding pipe. A motor is installed above the perlite container, and the output shaft of the motor is fixedly connected to the top end of the vertical shaft. A perlite container is provided between the machine body and the perlite container. The perlite grinding mechanism includes an annular pressure plate, multiple crushing teeth, a sieve plate, a fine grinding seat, a fine grinding roller, and a drive assembly. The annular pressure plate is slidably fitted onto the outer wall of the feed pipe, and the outer ring wall of the annular pressure plate is in sliding and sealing contact with the inner wall of the machine body. Multiple crushing teeth are fixedly installed at the bottom of the annular pressure plate and are evenly distributed. The sieve plate is fixedly fitted onto the vertical shaft and located between the crushing teeth and the grinding seat. Multiple evenly distributed sieve holes are opened on the sieve plate. A fine grinding chamber is opened at the top of the grinding seat, and the bottom end of the vertical shaft extends into the fine grinding chamber. A fine grinding channel is opened on the bottom inner wall of the fine grinding chamber. The fine grinding seat is fixedly installed at the bottom end of the vertical shaft, and the fine grinding roller is fixedly installed at the bottom center of the fine grinding seat. The bottom of the fine grinding roller extends into the fine grinding channel.
[0007] A further configuration of this application is as follows: the drive assembly includes multiple springs, a transverse drive shaft, multiple cams, a vertical transmission shaft, a main pulley, a secondary pulley, a belt, a drive bevel gear, and a driven bevel gear. Multiple springs are fixedly installed on the top of the pressure plate and are evenly distributed. The top ends of multiple springs are fixedly connected to the inner top wall of the machine body. The transverse drive shaft is rotatably installed inside the machine body and located above the pressure plate. Multiple cams are fixedly mounted on the transverse drive shaft, and the bottoms of multiple cams contact the top surface of the pressure plate. The left end of the transverse drive shaft extends outside the machine body. The vertical transmission shaft is rotatably installed inside the perlite container and located to the left of the vertical shaft. The top and bottom ends of the vertical transmission shaft extend outside the perlite container. The main pulley is fixedly mounted on the vertical shaft, and the secondary pulley is fixedly mounted on the top end of the vertical transmission shaft. A belt tensioner is mounted on the main pulley and the secondary pulley. The drive bevel gear is fixedly installed at the bottom end of the vertical transmission shaft, and the driven bevel gear is fixedly installed at the left end of the transverse drive shaft. The drive bevel gear meshes with the driven bevel gear.
[0008] A further feature of this application is that the central portion of the sieve plate has an upwardly convex structure.
[0009] A further feature of this application is that the inner diameter of the fine grinding cavity decreases sequentially from top to bottom, and the gap between the fine grinding seat and the fine grinding cavity gradually decreases from the periphery to the center.
[0010] A further provision of this application is that the transverse drive shaft is located behind the feed tube.
[0011] A further feature of this application is that a powder discharge hood is fixedly installed at the bottom of the grinding seat, and the powder discharge hood is connected to the fine grinding channel.
[0012] A further feature of this application is that the top of the fine grinding seat has an upwardly convex arc-shaped surface structure.
[0013] A further feature of this application is that an L-shaped frame is fixedly installed on the top of the perlite container, and the motor is fixedly installed on the L-shaped frame.
[0014] This application includes at least one of the following beneficial technical effects:
[0015] 1. This application utilizes a perlite grinding mechanism, which can perform an integrated operation of crushing, fine grinding and fine grinding of perlite in sequence, realizing a fine classification and grinding process for perlite, effectively improving the uniformity of the particle size of the finished powder, avoiding rework, and improving powder production efficiency and quality.
[0016] 2. This application utilizes a motor to drive the vertical shaft and spiral conveyor blades to rotate, which can discharge the pearl sand in the pearl sand container from the feed pipe at a uniform speed and in a uniform amount, providing a stable material input basis for subsequent grinding and classification. Attached Figure Description
[0017] Figure 1 This is a front-view stereoscopic structural diagram of this embodiment.
[0018] Figure 2 This is a front view sectional three-dimensional structural schematic diagram of this embodiment.
[0019] Figure 3 yes Figure 2 A magnified structural diagram of part A in the middle.
[0020] Figure 4 This is a three-dimensional structural diagram of the pressure plate viewed from below.
[0021] Figure 5 This is a partial three-dimensional structural schematic diagram of this embodiment.
[0022] In the diagram: 1. Machine body; 2. Grinding seat; 3. Support seat; 4. Pearl sand container; 5. Feed port; 6. Feed pipe; 7. Vertical shaft; 8. Spiral conveyor blades; 9. L-shaped frame; 10. Motor; 11. Pressure plate; 12. Crushing teeth; 13. Screen plate; 14. Screen holes; 15. Spring; 16. Horizontal drive shaft; 17. Cam; 18. Vertical transmission shaft; 19. Main pulley; 20. Secondary pulley; 21. Belt; 22. Drive bevel gear; 23. Driven bevel gear; 24. Fine grinding chamber; 25. Fine grinding channel; 26. Fine grinding seat; 27. Fine grinding roller; 28. Powder discharge hood. Detailed Implementation
[0023] The technical solution of this application will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0024] See Figure 1 and Figure 5 This application provides a fine grading and grinding equipment for perlite, including a machine body 1 and a grinding seat 2 installed and fixed inside the machine body 1. The bottom of the machine body 1 is open, and a support seat 3 is fixedly installed on the top of the machine body 1. A perlite container 4 is fixedly installed on the top of the support seat 3. A feeding port 5 is opened on the top of the perlite container 4. A feeding pipe 6 is fixedly installed at the center of the bottom of the perlite container 4. The bottom end of the feeding pipe 6 extends into the machine body 1. A vertical shaft 7 is rotatably installed inside the perlite container 4. A spiral conveying blade 8 is fixedly installed on the vertical shaft 7. The bottom end of the spiral conveying blade 8 extends into the center of the bottom of the perlite container 4. Inside the feed pipe 6, above the perlite container 4, a motor 10 is installed. The output shaft of the motor 10 is fixedly connected to the top of the vertical shaft 7. The motor 10 drives the vertical shaft 7 and the spiral conveying blades 8 to rotate, which can discharge the perlite in the perlite container 4 from the feed pipe 6 at a uniform speed and in a uniform amount. This facilitates the subsequent fine classification and grinding of the perlite entering the machine body 1, thus providing a stable material input basis for subsequent grinding and classification. It should be noted that the wiring and control methods of the motor 10 are mature technologies in this field and are fully disclosed. Therefore, they will not be described in detail here.
[0025] A perlite grinding mechanism is provided between the machine body 1 and the perlite container 4. The perlite grinding mechanism includes an annular pressure plate 11, multiple crushing teeth 12, a sieve plate 13, a fine grinding seat 26, a fine grinding roller 27, and a drive assembly. The annular pressure plate 11 is slidably fitted onto the outer wall of the feed pipe 6, and the outer annular wall of the annular pressure plate 11 is in sliding sealing contact with the inner wall of the machine body 1. Multiple crushing teeth 12 are fixedly installed at the bottom of the annular pressure plate 11 and are evenly distributed. The sieve plate 13 is fixedly fitted onto the vertical shaft 7 and is located between the crushing teeth 12 and the grinding seat 2. Multiple evenly distributed sieve holes 14 are opened on the sieve plate 13. A fine grinding chamber 24 is opened at the top of the grinding seat 2, and the bottom end of the vertical shaft 7 extends into the fine grinding chamber 24. A fine grinding channel 25 is opened on the bottom inner wall of the fine grinding chamber 24. The fine grinding seat 26 is fixedly installed at the bottom end of the vertical shaft 7, and the fine grinding roller... The fine grinding roller 27 is fixedly installed at the bottom center of the fine grinding seat 26. The bottom of the fine grinding roller 27 extends into the fine grinding channel 25. Using the multiple crushing teeth 12 evenly distributed at the bottom of the annular pressure plate 11, the perlite can be initially crushed. The sieve holes 14 on the sieve plate 13 can screen out particles that meet a certain particle size and enter the fine grinding chamber 24, avoiding large particles that are not fully crushed from directly entering the fine grinding stage, reducing the subsequent grinding burden. With the cooperation of the fine grinding chamber 24 and the fine grinding seat 26, the crushed perlite can be finely ground and powdered. With the cooperation of the fine grinding channel 25 and the fine grinding roller 27, the finely ground perlite can be finely ground and powdered. This realizes the fine classification and grinding process of perlite, effectively improves the uniformity of the particle size of the finished powder, avoids rework, and improves the powdering efficiency and quality.
[0026] In this embodiment, the drive assembly includes multiple springs 15, a transverse drive shaft 16, multiple cams 17, a vertical transmission shaft 18, a main pulley 19, a secondary pulley 20, a belt 21, a driving bevel gear 22, and a driven bevel gear 23. Multiple springs 15 are fixedly mounted on the top of the pressure plate 11 and are evenly distributed. The top ends of multiple springs 15 are fixedly connected to the inner top wall of the machine body 1. The transverse drive shaft 16 is rotatably mounted inside the machine body 1 and located above the pressure plate 11. Multiple cams 17 are fixedly fitted onto the transverse drive shaft 16, and the bottoms of multiple cams 17 are in contact with the top surface of the pressure plate 11. The left end of the transverse drive shaft 16 extends outside the machine body 1. The vertical transmission shaft 18 is rotatably mounted inside the perlite container 4 and located to the left of the vertical shaft 7. The top and bottom ends of the vertical transmission shaft 18 extend outside the perlite container 4. The main pulley 19 is fixedly fitted onto the vertical shaft 7, and the secondary pulley 20 is fixedly fitted onto the top end of the vertical transmission shaft 18. The belt 21 is tensioned and fitted onto the main pulley 19 and the auxiliary pulley 20. The driving bevel gear 22 is fixedly installed at the bottom end of the vertical drive shaft 18, and the driven bevel gear 23 is fixedly installed at the left end of the horizontal drive shaft 16. The driving bevel gear 22 and the driven bevel gear 23 mesh with each other. By utilizing the transmission action of the main pulley 19, the auxiliary pulley 20, and the belt 21, the rotation of the vertical drive shaft 18 can be controlled. By utilizing the meshing transmission action of the driving bevel gear 22 and the driven bevel gear 23, the horizontal drive shaft 16 can be controlled to drive multiple cams 17 to rotate. Utilizing the transmission characteristics of the cams 17, in conjunction with the elastic force of the spring 15, the annular pressure plate 11 can be driven to drive the crushing teeth 12 to move up and down reciprocally, so that the crushing teeth 12 continuously crush the perlite. This transmission design reduces the use of additional power devices, realizes efficient power distribution and utilization, reduces equipment energy consumption, simplifies the overall structure, and improves the stability and reliability of equipment operation.
[0027] In this embodiment, the center of the sieve plate 13 has an upward convex structure, which helps the perlite particles discharged from the feed pipe 6 to disperse and flow in all directions, ensuring that the crushing teeth 12 can fully and completely crush the perlite.
[0028] In this embodiment, the inner diameter of the fine grinding chamber 24 decreases from top to bottom, and the gap between the fine grinding seat 26 and the fine grinding chamber 24 gradually decreases from the periphery to the center. This helps the crushed pearl sand to smoothly enter the gap between the fine grinding seat 26 and the fine grinding chamber 24 and flow from top to bottom for fine grinding and powdering.
[0029] In this embodiment, the transverse drive shaft 16 is located behind the feed tube 6, which ensures the smoothness of the rotation of the transverse drive shaft 16 and that the two do not interfere with each other.
[0030] In this embodiment, a powder discharge cover 28 is fixedly installed at the bottom of the grinding seat 2. The powder discharge cover 28 is connected to the fine grinding channel 25 to facilitate the discharge of the perlite powder after the powdering is completed.
[0031] In this embodiment, the top of the fine grinding seat 26 has an upwardly convex arc-shaped surface structure, which can prevent perlite from remaining on the top surface of the fine grinding seat 26.
[0032] In this embodiment, an L-shaped frame 9 is fixedly installed on the top of the pearl sand container 4, and the motor 10 is fixedly installed on the L-shaped frame 9. The design of the L-shaped frame 9 facilitates the installation, fixation and stable use of the motor 10.
[0033] Based on the above structure, the working principle of the perlite fine grading and grinding equipment provided in this application is as follows:
[0034] Pour the perlite that needs to be powdered into the perlite container 4, start the motor 10 to run, and its output shaft drives the vertical shaft 7 to rotate. The spiral conveying blades 8 fixed on the vertical shaft 7 rotate accordingly. Under the continuous rotation of the spiral conveying blades 8, the perlite in the perlite container 4 is conveyed to the machine body 1 at a uniform speed and in a uniform amount through the feed pipe 6.
[0035] During the rotation of the vertical shaft 7, the main pulley 19 and the screen plate 13 rotate accordingly. Utilizing the transmission action of the main pulley 19, the auxiliary pulley 20, and the belt 21, the vertical drive shaft 18 can be controlled to drive the active bevel gear 22 to rotate. Utilizing the meshing transmission action of the active bevel gear 22 and the driven bevel gear 23, the horizontal drive shaft 16 can be controlled to drive multiple cams 17 to rotate. When the protruding part of the cam 17 contacts the annular pressure plate 11, it presses down on the annular pressure plate 11, causing it to overcome the elastic force of the spring 15 and move downwards. At this time, the crushing teeth 12 at the bottom of the annular pressure plate 11 perform preliminary crushing of the perlite discharged from the feed pipe 6. As the cam 17 continues to rotate, the protruding part moves away from the annular pressure plate 11. Under the elastic force of the spring 15, the annular pressure plate 11 returns to its original position, completing one crushing cycle. Then, during the continuous rotation of the cam 17, in conjunction with the elastic force of the spring 15, the annular pressure plate 11 can drive the crushing teeth 12 to move up and down reciprocally, so that the crushing teeth 12 continuously crush the perlite. The perlite particles that meet the particle size requirements after initial crushing will fall from the sieve hole 14 into the fine grinding chamber 24, while the larger particles will remain on the sieve plate 13 and continue to be crushed by the crushing teeth 12 until they are crushed to the required particle size.
[0036] The perlite entering the fine grinding chamber 24 undergoes a process where, due to the decreasing inner diameter of the chamber from top to bottom and the decreasing gap between the fine grinding seat 26 and the chamber from the periphery to the center, the perlite flows from top to bottom within the chamber under the influence of gravity and the rotation of the vertical shaft 7, causing the fine grinding seat 26 to rotate. This friction and compression against the side wall of the fine grinding seat 26 achieves fine grinding and powder production. The finely ground perlite continues to fall into the fine grinding channel 25, where the fine grinding roller 27, fixed at the bottom of the fine grinding seat 26, rotates with the vertical shaft 7 and engages with the inner wall of the fine grinding channel 25 to further refine and grind the perlite into fine powder.
[0037] After fine grinding, the perlite powder is discharged from the powder discharge hood 28, completing the entire fine grading and grinding process.
Claims
1. A fine grading and grinding equipment for perlite, characterized in that, The assembly includes a machine body (1) and a grinding seat (2) installed and fixed inside the machine body (1). The bottom of the machine body (1) is open. A support seat (3) is fixedly installed on the top of the machine body (1). A perlite container (4) is fixedly installed on the top of the support seat (3). A feeding port (5) is opened on the top of the perlite container (4). A feeding pipe (6) is fixedly installed at the center of the bottom of the perlite container (4). The bottom end of the feeding pipe (6) extends into the machine body (1). A vertical shaft (7) is rotatably installed inside the machine body (1), and a spiral conveying blade (8) is fixedly installed on the vertical shaft (7). The bottom end of the spiral conveying blade (8) extends into the discharge pipe (6). A motor (10) is installed above the pearl sand container (4), and the output shaft end of the motor (10) is fixedly connected to the top end of the vertical shaft (7). A pearl sand grinding mechanism is provided between the machine body (1) and the pearl sand container (4). The pearl sand grinding mechanism includes an annular pressure plate (11), multiple crushing teeth (12), and a sieve plate. (13), fine grinding seat (26), fine grinding roller (27) and drive assembly, the annular pressure plate (11) is slidably fitted on the outer wall of the feed pipe (6), the outer ring wall of the annular pressure plate (11) is in sliding sealing contact with the inner wall of the machine body (1), a plurality of crushing teeth (12) are fixedly installed at the bottom of the annular pressure plate (11) and are evenly distributed, the sieve plate (13) is fixedly fitted on the vertical shaft (7) and located between the crushing teeth (12) and the grinding seat (2), the sieve plate (13) is provided with Multiple evenly distributed sieve holes (14) are provided. A fine grinding chamber (24) is provided at the top of the grinding seat (2). The bottom end of the vertical shaft (7) extends into the fine grinding chamber (24). A fine grinding channel (25) is provided on the bottom inner wall of the fine grinding chamber (24). The fine grinding seat (26) is fixedly installed at the bottom end of the vertical shaft (7). The fine grinding roller (27) is fixedly installed at the bottom center of the fine grinding seat (26). The bottom of the fine grinding roller (27) extends into the fine grinding channel (25).
2. The perlite fine grading and grinding equipment according to claim 1, characterized in that: The drive assembly includes multiple springs (15), a transverse drive shaft (16), multiple cams (17), a vertical drive shaft (18), a main pulley (19), a secondary pulley (20), a belt (21), a driving bevel gear (22), and a driven bevel gear (23). The multiple springs (15) are all fixedly installed on the top of the pressure plate (11) and are evenly distributed. The top ends of the multiple springs (15) are fixedly connected to the top inner wall of the machine body (1). The transverse drive shaft (16) is rotatably installed inside the machine body (1) and located above the pressure plate (11). The multiple cams (17) are all fixedly mounted on the transverse drive shaft (16), and the bottoms of the multiple cams (17) are in contact with the top surface of the pressure plate (11). The transverse drive shaft (16)... The left end extends to the outside of the machine body (1). The vertical drive shaft (18) is rotatably installed inside the pearl sand container (4) and located on the left side of the vertical shaft (7). The top and bottom ends of the vertical drive shaft (18) both extend to the outside of the pearl sand container (4). The main pulley (19) is fixedly sleeved on the vertical shaft (7). The auxiliary pulley (20) is fixedly sleeved on the top end of the vertical drive shaft (18). The belt (21) is tensioned and sleeved on the main pulley (19) and the auxiliary pulley (20). The active bevel gear (22) is fixedly installed at the bottom end of the vertical drive shaft (18). The driven bevel gear (23) is fixedly installed at the left end of the transverse drive shaft (16). The active bevel gear (22) meshes with the driven bevel gear (23).
3. The perlite fine grading and grinding equipment according to claim 1, characterized in that: The central part of the sieve plate (13) has an upward convex structure.
4. The perlite fine grading and grinding equipment according to claim 1, characterized in that: The inner diameter of the fine grinding chamber (24) decreases from top to bottom, and the gap between the fine grinding seat (26) and the fine grinding chamber (24) gradually decreases from the periphery to the center.
5. The perlite fine grading and grinding equipment according to claim 2, characterized in that: The transverse drive shaft (16) is located behind the feed tube (6).
6. The perlite fine grading and grinding equipment according to claim 1, characterized in that: The bottom of the grinding seat (2) is fixedly installed with a powder discharge hood (28), which is connected to the fine grinding channel (25).
7. The perlite fine grading and grinding equipment according to claim 1, characterized in that: The top of the fine grinding seat (26) has an upwardly convex arc-shaped surface structure.
8. The perlite fine grading and grinding equipment according to claim 1, characterized in that: An L-shaped frame (9) is fixedly installed on the top of the pearl sand container (4), and the motor (10) is fixedly installed on the L-shaped frame (9).