A multi-stage segment control-based silicon powder pulverizer
The multi-stage segmented control silicon micro powder pulverizer, combining hammering, conveying, and grinding, solves the problem of a single pulverization method, achieving efficient fine pulverization and adjustable particle size, thus improving the applicability and production efficiency of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU ZHUOYUESIFANG ENVIRONMENTAL TECH
- Filing Date
- 2025-08-22
- Publication Date
- 2026-07-21
AI Technical Summary
Existing silicon micro powder pulverizing equipment uses a single pulverizing method, resulting in uneven particle size distribution, which makes it difficult to meet the needs of high-end industries. Furthermore, the grinding process is time-consuming, the equipment is prone to damage, and the production efficiency is low.
It adopts a multi-stage segmented crushing method, including preliminary hammering, conveying and fine grinding. The silicon material is gradually crushed through the combination of impact hammer, screw conveyor and grinding disc. A dredging rod is set to prevent the screen hole from being blocked and the grinding gap can be adjusted.
It improves the crushing effect and product quality, enhances the stability and versatility of the equipment, and meets the requirements of different particle sizes.
Smart Images
Figure CN224524936U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of silicon powder pulverization technology, specifically relating to a silicon micro powder pulverizer based on multi-stage segmented control. Background Technology
[0002] In the production and processing of silicon micropowder, the pulverization process is a crucial step, as its pulverization effect directly determines the quality and application range of the silicon micropowder.
[0003] Traditional silicon micropowder pulverizing equipment mostly employs a single pulverizing method, such as relying solely on hammering or grinding to process silicon material. While hammering alone can quickly break large pieces of silicon into smaller particles, the lack of subsequent fine processing results in a wide particle size distribution and numerous large impurities in the resulting silicon micropowder, making it difficult to meet the stringent particle size requirements of industries such as electronic packaging and high-end coatings. Grinding alone, while producing finer silicon micropowder, is time-consuming, inefficient, and prone to damage from overloading for initially large-particle-size silicon, increasing maintenance costs and production instability. These methods fail to meet the diverse requirements of modern industrial production regarding silicon micropowder particle size, purity, and production efficiency. Therefore, this application proposes a silicon micropowder pulverizer based on multi-stage segmented control. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a silicon micro powder pulverizer based on multi-stage segmented control, which aims to solve the technical problem that the silicon micro powder pulverizing equipment under the existing technology has a single pulverizing method and poor effect.
[0005] Technical solution
[0006] To address the aforementioned technical problems, this utility model provides a silicon micro powder pulverizer based on multi-stage segmented control, comprising a conveying pipe, which is horizontally distributed. A first pulverizing tank is provided at one end of the top of the conveying pipe, and a second pulverizing tank is provided at the bottom of the conveying pipe away from the first pulverizing tank. A collection tank is connected to the bottom of the second pulverizing tank. The conveying pipe is connected to the first pulverizing tank and the second pulverizing tank, and the second pulverizing tank is connected to the collection tank. An impact hammer and an impact driving mechanism for driving the impact hammer to strike downwards are provided inside the first pulverizing tank. An auger is provided inside the conveying pipe, and a conveying driving mechanism for driving the auger to rotate and convey the material is provided on the conveying pipe. A first grinding disc and a second grinding disc are provided at the bottom of the second pulverizing tank, and a grinding driving mechanism for driving the first grinding disc to rotate relative to the second grinding disc is provided on the second pulverizing tank. Silicon material enters the first pulverizing tank and is initially pulverized by the impact hammer. It falls into the conveying pipe and is conveyed into the second pulverizing tank by the rotating auger. After being pulverized by the rotation of the first grinding disc and the second grinding disc, it falls into the collection tank for collection.
[0007] Preferably, a horizontal plate is fixed to the top of the first crushing tank, and the impact driving mechanism is an impact cylinder vertically mounted on the horizontal plate. The telescopic end of the impact cylinder is vertically downward and connected to a first shaft, and the impact hammer is fixed to the bottom end of the first shaft.
[0008] Preferably, the conveying drive mechanism is a first motor fixedly installed at one end of the conveying pipe, and the output shaft of the first motor is coaxially connected to the auger.
[0009] Preferably, the grinding drive mechanism is a second motor fixedly installed at the top of the second grinding tank. A second shaft extending into the second grinding tank is connected to the output shaft of the second motor. The second shaft is connected to the first grinding disc, and multiple paddles are staggered on the side wall of the second shaft.
[0010] Preferably, the bottom of the first and second crushing tanks is configured as a bucket-shaped structure, and ring plates are fixed on the outer walls of both the first and second crushing tanks. The impact hammer is matched with the bottom structure of the first crushing tank. A connecting cylinder is connected to the bottom of the first crushing tank. A feed inlet is opened at the top of one end of the conveying pipe, and a discharge outlet is opened at the bottom of the other end of the conveying pipe. The conveying pipe is connected to the first crushing tank through the feed inlet and the connecting cylinder, and is connected to the second crushing tank through the discharge outlet.
[0011] Preferably, a support plate is horizontally fixed at the top of the connecting cylinder, and multiple screening holes are provided on the support plate. When the impact hammer strikes downward, the lower end face of the impact hammer is in horizontal contact with the support plate. A connecting rod is vertically connected to the bottom of the impact hammer, and the connecting rod moves through the support plate. A connecting strip is connected to the bottom of the connecting rod, and a clearing rod is vertically provided on the connecting strip. The number of clearing rods is equal to and aligned with the screening holes. When the impact hammer rises, the clearing rods are driven by the connecting rod and the connecting strip to insert into the screening holes from bottom to top.
[0012] Preferably, the first grinding disc is configured as a conical cap structure, with multiple material discharge holes at the center of the first grinding disc, distributed around the second shaft. The top wall of the collecting tank smoothly fits against the side of the upper surface of the first grinding disc. The top of the second grinding disc has a conical surface, and the gap between the conical surface of the second grinding disc and the lower surface of the first grinding disc gradually decreases from the center outwards. Preferably, an inner tube is vertically installed at the bottom of the collection tank, and a rectangular sleeve arm is closed at the top and vertically fixed thereon. The bottom end of the inner tube penetrates the bottom wall of the collection tank, and a rectangular connecting arm is movably installed at the top of the rectangular sleeve arm. A second grinding disc is fixed at the top of the rectangular connecting arm. A lead screw is vertically and rotatably installed inside the rectangular sleeve arm, and a hexagonal end cap coaxially connected to the lead screw is provided inside the inner tube. The rectangular connecting arm and the lead screw are threadedly fitted together.
[0013] Beneficial effects
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention employs a multi-stage, segmented crushing method. First, the silicon material is initially crushed by an impact hammer in the first crushing tank. Then, the silicon material is conveyed to the second crushing tank via an auger in the conveying pipe. Finally, in the second crushing tank, the silicon material is finely ground by the relative rotation of the first and second grinding discs. This multi-stage, segmented crushing method can gradually crush the silicon material into finer silicon powder, improving the crushing effect and product quality.
[0015] In this invention, a support plate and a dredging rod are provided inside the first crushing tank. When the impact hammer rises, the dredging rod will insert into the screening hole on the support plate, effectively preventing the screening hole from becoming blocked and ensuring that the silicon material after preliminary crushing can smoothly pass through the screening hole into the conveying pipe, thereby ensuring the stable operation of the equipment.
[0016] In this invention, the height of the rectangular connecting arm can be adjusted by rotating the hexagonal end cap to drive the lead screw, thereby adjusting the gap between the second and first grinding discs. This adjustable design allows the pulverizer to flexibly adjust the grinding gap according to different production needs, producing silicon micropowder of different particle sizes, thus improving the versatility and applicability of the equipment. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the conveying pipe, the first pulverizing tank, and the second pulverizing tank in this utility model; Figure 3 This is a schematic diagram of the internal structure of the first pulverizing tank in this utility model; Figure 4 This is a schematic diagram of the impact hammer and support plate in this utility model; Figure 5 This is a schematic diagram of the internal structure of the second crushing tank and the collecting tank in this utility model; Figure 6 This is a schematic diagram of the structure of the first and second grinding discs in this utility model; Figure 7 This is a schematic diagram of the internal structure of the conveying pipe in this utility model.
[0019] The labels in the attached diagram are as follows: 1. Conveying pipe; 2. First crushing tank; 3. Second crushing tank; 4. Collection tank; 5. Discharge port; 6. Ring plate; 7. Impact hammer; 8. First shaft; 9. Impact cylinder; 10. Screw; 11. First motor; 12. Second shaft; 13. First grinding disc; 14. Second grinding disc; 15. Second motor; 16. Connecting cylinder; 17. Support plate; 18. Horizontal plate; 19. Screening hole; 20. Connecting rod; 21. Connecting strip; 22. Unblocking rod; 23. Rectangular connecting arm; 24. Inner tube; 25. Rectangular sleeve arm; 26. Lead screw; 27. Hexagonal end cap; 28. Paddle; 29. Discharge hole; 30. Feed inlet; 31. Discharge port. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] This embodiment provides a silicon micro powder pulverizer based on multi-stage segmented control, and its structural schematic diagram is shown below. Figures 1-7 As shown, it includes a conveying pipe 1, a first crushing tank 2, a second crushing tank 3, and a collection tank 4.
[0022] In this embodiment, the conveying pipe 1 is horizontally distributed, and a first crushing tank 2 is provided at one end of the top of the conveying pipe 1. A discharge port 31 is provided at the bottom of the end of the conveying pipe 1 away from the first crushing tank 2. The discharge port 31 is connected to the second crushing tank 3. A collection tank 4 is connected to the bottom end of the second crushing tank 3. A discharge port 5 is provided on the bottom wall of the collection tank 4.
[0023] In this embodiment, a horizontal plate 18 is fixed to the top of the first crushing tank 2. An impact cylinder 9 is vertically mounted on the horizontal plate 18 as an impact driving mechanism. The telescopic end of the impact cylinder 9 points vertically downward and is connected to a first shaft 8. An impact hammer 7 is fixed to the bottom of the first shaft 8, and the impact hammer 7 matches the bucket-shaped structure at the bottom of the first crushing tank 2. A connecting cylinder 16 is connected to the bottom of the first crushing tank 2. The connecting cylinder 16 communicates with the feed inlet 30 at the top of one end of the conveying pipe 1. A support plate 17 is horizontally fixed to the top of the connecting cylinder 16, and multiple screening holes 19 are opened on the support plate 17. The bottom of both the first crushing tank 2 and the second crushing tank 3 are set as bucket-shaped structures, and ring plates 6 are fixed on the outer walls of both.
[0024] Furthermore, an auger 10 is installed inside the conveying pipe 1, and a first motor 11 is fixedly installed at one end of the conveying pipe 1 as a conveying drive mechanism. The output shaft of the first motor 11 is coaxially connected to the auger 10. When the auger 10 rotates, it can convey the material from one end of the feed port 30 to one end of the discharge port 31.
[0025] Furthermore, a first grinding disc 13 and a second grinding disc 14 are provided at the bottom of the second grinding tank 3. A second motor 15 is fixedly installed at the top of the second grinding tank 3 as a grinding drive mechanism. A second shaft 12 extending into the second grinding tank 3 is connected to the output shaft of the second motor 15. The second shaft 12 is connected to the first grinding disc 13, and multiple paddles 28 are staggered on the side wall of the second shaft 12. The first grinding disc 13 is designed as a conical cap structure, with multiple material discharge holes 29 at its central position, which are distributed around the second shaft 12. The top wall of the collection tank 4 is smoothly fitted to the upper surface edge of the first grinding disc 13. The top of the second grinding disc 14 has a conical surface, and the gap between the conical surface of the second grinding disc 14 and the lower surface of the first grinding disc 13 gradually decreases from the center to the periphery.
[0026] Furthermore, in this embodiment, an inner tube 24 is vertically arranged at the bottom of the collection tank 4. A rectangular sleeve arm 25 is closed at the top of the inner tube 24 and vertically fixed thereon, with the bottom end of the inner tube 24 penetrating the bottom wall of the collection tank 4. A rectangular connecting arm 23 is movably inserted through the top of the rectangular sleeve arm 25, and the second grinding disc 14 is fixed to the top of the rectangular connecting arm 23. A lead screw 26 is vertically rotatably installed inside the rectangular sleeve arm 25, and a hexagonal end cap 27 coaxially connected to the lead screw 26 is provided inside the inner tube 24. The rectangular connecting arm 23 and the lead screw 26 are threadedly engaged. By rotating the hexagonal end cap 27, the lead screw 26 can be rotated, thereby adjusting the height of the rectangular connecting arm 23, and thus adjusting the gap between the second grinding disc 14 and the first grinding disc 13.
[0027] Furthermore, in this embodiment, when the impact hammer 7 strikes downwards, its lower end face is in horizontal contact with the support plate 17. A connecting rod 20 is vertically connected to the bottom of the impact hammer 7, and the connecting rod 20 movably passes through the support plate 17. A connecting strip 21 is connected to the bottom of the connecting rod 20, and a clearing rod 22 is vertically arranged on the connecting strip 21. The number of clearing rods 22 is equal to and aligned with the number of screening holes 19. When the impact hammer 7 rises, the connecting rod 20 and the connecting strip 21 drive the clearing rods 22 to insert into the screening holes 19 from bottom to top, preventing the screening holes 19 from becoming blocked.
[0028] Working principle: In use, silicon material is put into the first crushing tank 2, and the impact cylinder 9 is activated. The impact cylinder 9 drives the first shaft 8 and the impact hammer 7 to hammer the silicon material downwards, thus performing preliminary crushing. During the hammering process, when the impact hammer 7 rises, it drives the unblocking rod 22 to be inserted into the sieve hole 19 from bottom to top through the connecting rod 20 and the connecting strip 21, preventing the sieve hole 19 from being blocked and ensuring that the preliminarily crushed silicon material can smoothly pass through the sieve hole 19 and fall into the connecting cylinder 16, and then enter the conveying pipe 1 through the feed inlet 30.
[0029] The first motor 11 is started, driving the auger 10 to rotate, conveying the silicon material in the conveying pipe 1 from one end of the inlet 30 to one end of the outlet 31, and falling into the second grinding tank 3. The second motor 15 is started, driving the second shaft 12 to rotate, which in turn drives the first grinding disc 13 and the agitator 28 to rotate. The agitator 28 stirs the silicon material during rotation, making it more evenly distributed. The silicon material falls through the discharge hole 29 on the first grinding disc 13 into the gap between the first grinding disc 13 and the second grinding disc 14. Because the first grinding disc 13 and the second grinding disc 14 rotate relative to each other, and the gap between them gradually decreases from the center to the periphery, the silicon material is squeezed and ground during the process of passing through the gap, and is further pulverized into finer silicon powder. The pulverized silicon powder falls into the collection tank 4, and can be discharged from the collection tank 4 through the discharge port 5. When it is necessary to adjust the gap between the second grinding disc 14 and the first grinding disc 13, rotate the hexagonal end cap 27. The hexagonal end cap 27 drives the lead screw 26 to rotate. The lead screw 26 drives the rectangular connecting arm 23 to move up and down through the threaded engagement, thereby adjusting the height of the second grinding disc 14 and realizing the adjustment of the grinding gap.
[0030] All technical features in this embodiment can be freely combined according to actual needs.
[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A silicon micro powder pulverizer based on multi-stage segmented control, comprising a conveying pipe (1), characterized in that: The conveying pipe (1) is horizontally distributed. A first crushing tank (2) is provided at one end of the top of the conveying pipe (1). A second crushing tank (3) is provided at the bottom of the end of the conveying pipe (1) away from the first crushing tank (2). A collection tank (4) is connected to the bottom of the second crushing tank (3). The conveying pipe (1) is connected to the first crushing tank (2) and the second crushing tank (3). The second crushing tank (3) is connected to the collection tank (4). The first crushing tank (2) is equipped with an impact hammer (7) and an impact driving mechanism for driving the impact hammer (7) to strike downwards. The conveying pipe (1) is equipped with an auger (10) and a conveying driving mechanism for driving the auger (10) to rotate and convey. The bottom of the second crushing tank (3) is equipped with a first grinding disc (13) and a second grinding disc (14). The second crushing tank (3) is equipped with a grinding driving mechanism for driving the first grinding disc (13) to rotate relative to the second grinding disc (14). The silicon material enters the first crushing tank (2) and is initially crushed by the impact hammer (7). It falls into the conveying pipe (1) and is conveyed into the second crushing tank (3) by the rotation of the auger (10). After being ground and crushed by the rotation of the first grinding disc (13) and the second grinding disc (14), it falls into the collection tank (4) for collection.
2. The silicon micro powder pulverizer based on multi-stage segmented control according to claim 1, characterized in that, The first crushing tank (2) has a horizontal plate (18) fixed on the top horizontal plate. The impact driving mechanism is an impact cylinder (9) that is vertically installed on the horizontal plate (18). The telescopic end of the impact cylinder (9) is vertically downward and connected to the first shaft (8). The impact hammer (7) is fixed at the bottom end of the first shaft (8).
3. A silicon micro powder pulverizer based on multi-stage segmented control according to claim 1, characterized in that, The conveying drive mechanism is a first motor (11) fixedly installed at one end of the conveying pipe (1), and the output shaft of the first motor (11) is coaxially connected to the auger (10).
4. A silicon micro powder pulverizer based on multi-stage segmented control according to claim 1, characterized in that, The grinding drive mechanism is a second motor (15) fixedly installed at the top of the second grinding tank (3). The output shaft of the second motor (15) is connected to a second shaft (12) that extends into the second grinding tank (3). The second shaft (12) is connected to the first grinding disc (13). Multiple paddles (28) are staggered on the side wall of the second shaft (12).
5. A silicon micro powder pulverizer based on multi-stage segmented control according to claim 1, characterized in that, The bottom of the first crushing tank (2) and the second crushing tank (3) are configured as a bucket-shaped structure. The outer walls of the first crushing tank (2) and the second crushing tank (3) are both fixed with ring plates (6). The impact hammer (7) is matched with the bottom structure of the first crushing tank (2). The bottom of the first crushing tank (2) is connected to a connecting cylinder (16). One end of the conveying pipe (1) has a feed inlet (30) at the top and the other end of the conveying pipe (1) has a discharge outlet (31) at the bottom. The conveying pipe (1) is connected to the first crushing tank (2) through the feed inlet (30) and the connecting cylinder (16). The conveying pipe (1) is connected to the second crushing tank (3) through the discharge outlet (31).
6. A silicon micro powder pulverizer based on multi-stage segmented control according to claim 5, characterized in that, The top of the connecting cylinder (16) is horizontally fixed with a support plate (17). The support plate (17) has multiple screening holes (19). When the impact hammer (7) strikes downward, the lower end face of the impact hammer (7) is in horizontal contact with the support plate (17). The bottom end of the impact hammer (7) is vertically connected with a connecting rod (20). The connecting rod (20) moves through the support plate (17). The bottom end of the connecting rod (20) is connected with a connecting strip (21). A clearing rod (22) is vertically arranged on the connecting strip (21). The number of clearing rods (22) is equal to and aligned with the screening holes (19). When the impact hammer (7) rises, the connecting rod (20) and the connecting strip (21) drive the clearing rod (22) to insert into the screening hole (19) from bottom to top.
7. A silicon micro powder pulverizer based on multi-stage segmented control according to claim 6, characterized in that, The first grinding disc (13) is configured as a conical cap structure. Multiple material dropping holes (29) are provided at the middle position of the first grinding disc (13). The multiple material dropping holes (29) are distributed around the second shaft (12). The top wall of the collection tank (4) is smoothly attached to the side of the upper surface of the first grinding disc (13). The top of the second grinding disc (14) has a conical surface, and the gap between the conical surface of the second grinding disc (14) and the lower surface of the first grinding disc (13) gradually decreases from the middle to the periphery.
8. A silicon micro powder pulverizer based on multi-stage segmented control according to claim 7, characterized in that, The bottom of the collection tank (4) is vertically provided with an inner tube (24). The top of the inner tube (24) is closed and vertically fixed with a rectangular sleeve arm (25). The bottom end of the inner tube (24) penetrates the bottom wall of the collection tank (4). A rectangular connecting arm (23) is movably provided at the top of the rectangular sleeve arm (25). The second grinding disc (14) is fixed at the top of the rectangular connecting arm (23). A screw rod (26) is vertically and rotatably installed inside the rectangular sleeve arm (25). A hexagonal end cap (27) is provided inside the inner tube (24) and coaxially connected with the screw rod (26). The rectangular connecting arm (23) and the screw rod (26) are threaded together.