A screening device for high aspect ratio wollastonite powder
By using a motor-driven helical gear system and a cleaning plate to clean the screen plate, combined with quick-release components and a dust collection system, the problem of screen plate clogging in high aspect ratio wollastonite powder screening devices has been solved, improving screening efficiency and dust handling capacity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHIJIAZHUANG HUABANG MINERAL PROD CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-07-07
AI Technical Summary
In existing high aspect ratio wollastonite powder screening devices, the sieve plates are prone to clogging, resulting in reduced screening efficiency and preventing qualified powder from passing through the sieve holes smoothly.
The system uses a motor-driven helical gear system to drive the cleaning plate to clean the surface of the screen plate. The dust screen can be easily replaced through a quick-release assembly. Combined with a dust collection system, it can collect dust, prevent clogging, and improve cleaning efficiency.
It effectively avoids screen plate clogging, improves screening efficiency, simplifies the cleaning and maintenance process of dust screen, and enhances the operational stability and dust treatment effect of the equipment.
Smart Images

Figure CN224463152U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vibration screening equipment technology, and in particular to a screening device for wollastonite powder with a high aspect ratio. Background Technology
[0002] High aspect ratio wollastonite powder is a needle-shaped powder material made from natural wollastonite minerals. The ratio of its length to its diameter is usually above 10:1. It retains the natural needle-like structure of wollastonite and has high strength, high toughness, good insulation and chemical stability. It is widely used in plastics, rubber, coatings and other fields, and can significantly enhance the mechanical properties of materials.
[0003] The screening device for high aspect ratio wollastonite powder uses a vibrating motor to drive the screen plate to vibrate. After the wollastonite powder falls into the screen plate from the feed hopper, the needle-shaped particles, due to their large aspect ratio and center of gravity biased towards the long axis, are more likely to slide along the inclined direction of the screen plate. Meanwhile, the powder particles that are broken or irregularly shaped during the processing of natural wollastonite are intercepted by the screen plate during vibration. The spring support buffers the vibration impact, ensuring the stable operation of the screen plate, and finally screening out the high aspect ratio wollastonite powder.
[0004] Existing screening devices for high aspect ratio wollastonite powder often result in residual wollastonite powder clogging the sieve holes during the screening process, reducing screening efficiency and preventing qualified wollastonite powder from passing through the sieve holes smoothly. This affects the screening of high aspect ratio wollastonite powder. Therefore, a new screening device for high aspect ratio wollastonite powder is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a screening device for wollastonite powder with a high aspect ratio, which aims to improve the problem of sieve plate clogging in the prior art.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A screening device for high aspect ratio wollastonite powder includes a housing, a screening machine installed inside the housing, a mounting shell fixedly connected to the outside of the housing, a fixing rod fixedly connected inside the mounting shell, two helical gears rotatably connected to the outside of the fixing rod, an L-shaped rod fixedly connected to the outside of the helical gears, a rotating plate rotatably connected to one end of the L-shaped rod, a connecting rod rotatably connected to one end of the rotating plate, another rotating plate rotatably connected to the outside of the other helical gear, a sliding rod rotatably connected to one end of the rotating plate rotatably connected to the outside of the connecting rod, a dust collection box installed outside the housing, a mounting frame fixedly connected to the outside of the dust collection box, and a quick-release assembly fixedly connected inside the mounting frame.
[0008] As a further description of the above technical solution:
[0009] The quick-release assembly includes a dustproof net, with fixed rings fixedly connected to all four sides of the inner side of the dustproof net. Sliding rods are slidably connected to both sides of the inner side of the fixed rings. A locking block is fixedly connected to one end of the sliding rod, and a spring is sleeved on the outside of the sliding rod. Fixed blocks are fixedly connected to all four sides of the inner side of the mounting bracket. A sliding column is fixedly connected to one end of the fixed block, and a fixed frustum is fixedly connected to one end of the sliding column. A sliding block is slidably connected to the outside of the sliding column.
[0010] As a further description of the above technical solution:
[0011] A protective shell is fixedly connected inside the mounting housing, and a motor is fixedly connected inside the protective shell. A helical gear one is fixedly connected to the drive end of the motor, and two helical gears two are meshed with helical gear one.
[0012] As a further description of the above technical solution:
[0013] Both sides of the sliding rod are slidably connected to the internal groove of the outer shell, and two telescopic rods are fixedly connected to the bottom of the sliding rod, with a cleaning plate fixedly connected to the bottom of the two telescopic rods;
[0014] As a further description of the above technical solution:
[0015] The screening machine has a screen plate installed inside, and the outside of the cleaning plate is in contact with the top of the screen plate;
[0016] As a further description of the above technical solution:
[0017] A filter plate is slidably connected inside the dust collection box, and a dust collection box is slidably connected inside the dust collection box;
[0018] As a further description of the above technical solution:
[0019] A suction pipe is fixedly connected to the inside of the dust collection box, and a dust collection cover is fixedly connected to the other end of the suction pipe;
[0020] As a further description of the above technical solution:
[0021] A fan is installed inside the dust collection box, and a feed inlet is fixedly connected to the top of the outer shell.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, the starting motor drives the first helical gear to rotate, which in turn drives the two second helical gears to rotate outside the fixed rod. As the second helical gear rotates, the L-shaped rod drives the first rotating plate to rotate, and the second helical gear on the other side drives the second rotating plate to rotate synchronously. Therefore, the first rotating plate and the second rotating plate drive the connecting rod, which in turn drives the sliding rod to slide along the groove inside the outer shell. The height of the cleaning plate is adjusted by the telescopic rod. The reciprocating motion of the sliding rod drives the cleaning plate to clean the high aspect ratio wollastonite powder remaining on the surface of the screen plate, thus avoiding screen plate blockage and affecting screening.
[0024] 2. In this utility model, by pushing the dustproof net inward, the four inner fixing rings drive the locking block to slide along the upper curved surface of the sliding block. The locking block slides outward under the action of the spring. After the locking block contacts the lower half of the sliding block, it pulls the dustproof net outward. The locking block drives the sliding block to slide along the sliding column until the upper part of the sliding block contacts the bottom groove of the fixed truncated cone. The locking block continues to slide along the curved surface of the fixed truncated cone and disengages, thus removing the dustproof net. After cleaning, it is inserted into the mounting bracket. The locking block slides along the curved surface of the fixed truncated cone to the bottom of the fixed truncated cone, thus fixing the dustproof net. The dustproof net can be quickly disassembled and installed by simple pushing and pulling, which is convenient for cleaning and maintenance and improves the dust collection effect. Attached Figure Description
[0025] Figure 1 This is a three-dimensional schematic diagram of a screening device for high aspect ratio wollastonite powder proposed in this utility model.
[0026] Figure 2 This is a schematic diagram of the sieve plate of a high aspect ratio wollastonite powder screening device proposed in this utility model.
[0027] Figure 3 This is a schematic diagram of the connecting rod of a screening device for high aspect ratio wollastonite powder proposed in this utility model;
[0028] Figure 4 This is a schematic diagram of the sliding rod of a screening device for high aspect ratio wollastonite powder proposed in this utility model;
[0029] Figure 5 This is a schematic diagram of the fixing ring structure of a screening device for high aspect ratio wollastonite powder proposed in this utility model.
[0030] Legend:
[0031] 1. Outer casing; 2. Screening machine; 3. Mounting casing; 4. Screen plate; 5. Protective casing; 6. Motor; 7. Helical gear one; 8. Fixed rod; 9. Helical gear two; 10. L-shaped rod; 11. Rotating plate one; 12. Rotating plate two; 13. Connecting rod; 14. Sliding rod; 15. Telescopic rod; 16. Cleaning plate; 17. Dust collection box; 18. Dust collection pipe; 19. Dust collection hood; 20. Filter plate; 21. Mounting frame; 22. Dust collection box; 23. Dustproof net; 24. Fan; 25. Fixed block; 26. Sliding column; 27. Fixed truncated cone; 28. Sliding block; 29. Fixed ring; 30. Sliding rod; 31. Locking block; 32. Spring; 33. Feed inlet. Detailed Implementation
[0032] 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.
[0033] Reference Figures 1 to 3This utility model provides an embodiment of a screening device for high aspect ratio wollastonite powder, comprising a housing 1, a feed inlet 33 fixedly connected to the top of the housing 1, a screening machine 2 installed inside the housing 1 for screening the wollastonite powder, a mounting shell 3 fixedly connected to the outside of the housing 1, a protective shell 5 fixedly connected inside the mounting shell 3, a motor 6 fixedly connected inside the protective shell 5, the protective shell 5 protecting the motor 6, a helical gear 7 fixedly connected to the drive end of the motor 6, the motor 6 driving the helical gear 7 to rotate, and the mounting shell 3 fixedly connected inside... There is a fixed rod 8, to which two helical gears 9 are rotatably connected. The fixed rod 8 provides a rotational support point for the helical gears 9. The two helical gears 9 are meshed with helical gear 7. The rotation of helical gear 7 drives the two helical gears 9 to rotate simultaneously in opposite directions. An L-shaped rod 10 is fixedly connected to the outside of the helical gears 9. The rotation of the helical gears 9 drives the L-shaped rod 10 to rotate synchronously. One end of the L-shaped rod 10 is rotatably connected to a rotating plate 11. The rotation of the L-shaped rod 10 drives the rotating plate 11 to move accordingly. One end of the rotating plate 11 is rotatably connected to a connecting rod 13. The rotating plate 11 moves... The connecting rod 13 is driven to move. A rotating plate 12 is fixedly connected to the outside of another helical gear 9. One end of the rotating plate 12 is rotatably connected to the outside of the connecting rod 13. The rotation of the rotating plate 12 further drives the connecting rod 13 to move, making the movement of the connecting rod 13 more stable. The other end of the connecting rod 13 is rotatably connected to a sliding rod 14. The movement of the connecting rod 13 drives the sliding rod 14 to reciprocate. Both sides of the sliding rod 14 are slidably connected to the internal grooves of the outer casing 1. The internal grooves of the outer casing 1 guide the movement of the sliding rod 14. Two... Two telescopic rods 15 are fixedly connected to the bottom of two telescopic rods 15. The telescopic rods 15 drive the cleaning plate 16 to move. The screen plate 4 is installed inside the screening machine 2. The outside of the cleaning plate 16 contacts the top of the screen plate 4. The cleaning plate 16 moves on the top of the screen plate 4 to clean the wollastonite powder blocking the screen plate 4, prevent the screen plate 4 from blocking, and ensure screening efficiency. A dust collection box 17 is installed on the outside of the outer shell 1. The dust collection box 17 is used to collect the dust generated during the screening process. A mounting frame 21 is fixedly connected to the outside of the dust collection box 17. A quick-release assembly is fixedly connected inside the mounting frame 21.
[0034] Reference Figure 1 , Figure 4 and Figure 5The quick-release assembly includes a dustproof net 23, which facilitates the quick removal and installation of the dustproof net 23 and makes it easy to clean or replace it. The dustproof net 23 prevents external debris from entering the dust collection box 17. The dustproof net 23 is fixedly connected to a fixing ring 29 on all four sides of its inner side. The fixing ring 29 is slidably connected to a slide rod 30 on both sides of its inner side. One end of the slide rod 30 is fixedly connected to a locking block 31. The slide rod 30 can slide within the fixing ring 29, driving the locking block 31 to move. A spring 32 is sleeved on the outside of the slide rod 30. The mounting bracket 21 is fixedly connected to a fixing block 25 on all four sides of its inner side. One end of the fixing block 25 is fixedly connected to a sliding column 26, which provides fixed support for the sliding column 26. One end of the sliding column 26 is fixedly connected to a fixing frustum 27, which limits the sliding block 28. The sliding column 26 is slidably connected to a sliding block 28, which provides a sliding track for the sliding block 28, facilitating the installation and removal of the dustproof net 23.
[0035] Reference Figure 1 , Figure 2 and Figure 4 The dust collection box 17 has a filter plate 20 slidably connected inside and a dust collection box 22 slidably connected inside. The dust drawn in is intercepted by the filter plate 20 and falls into the dust collection box 22 below. The dust collection box 17 has a suction pipe 18 fixedly connected inside, which provides a flow channel for the dust. The other end of the suction pipe 18 is fixedly connected to a dust collection hood 19, which increases the suction area and improves the suction efficiency, drawing the dust generated during the screening process into the suction pipe 18. The dust collection box 17 has a fan 24 installed inside. When the fan 24 works, it generates negative pressure, causing the dust to enter the dust collection box 17 through the dust collection hood 19 and the suction pipe 18.
[0036] Working principle: The motor 6 drives the helical gear 7 to rotate, which in turn drives the two helical gears 9 to rotate outside the fixed rod 8. Therefore, the helical gears 9 drive the L-shaped rod 10 to rotate synchronously. The L-shaped rod 10 drives the rotating plate 11 to rotate, and the rotating plate 11 drives the connecting rod 13 to rotate. The other helical gear 9 drives the rotating plate 12 to rotate synchronously, and the rotating plate 12 also drives the connecting rod 13 to rotate. Therefore, the rotating plate 11 and the rotating plate 12 drive the connecting rod 13, so that the connecting rod 13 drives the sliding rod 14 to slide in the groove inside the outer shell 1. The height of the cleaning plate 16 is adjusted by the telescopic rod 15, so that the cleaning plate 16 contacts the surface of the sieve plate 4. Therefore, the connecting rod 13 drives the sliding rod 14, so that the cleaning plate 16 cleans the surface of the sieve plate 4, removing the high aspect ratio wollastonite powder remaining on the sieve plate 4.
[0037] When the fan 24 is activated, the dust generated during the screening of wollastonite powder by the screening machine 2 is sucked into the dust collection box 17 through the dust collection hood 19 and the dust collection pipe 18. After being intercepted by the filter plate 20, the dust falls into the dust collection box 22 below. During the dust collection process, dust will be adsorbed on the dustproof net 23 by the fan 24. Therefore, by pushing the dustproof net 23 inward, the four fixing rings 29 on the inner side of the dustproof net 23 move inward, causing the locking block 31 to slide along the upper part of the curved surface of the sliding block 28. At this time, the locking block 31 slides outward under the action of the spring 32. When the locking block 31 contacts the lower half of the sliding block 28, it pulls the dustproof net 23 outward, causing the locking block 31 to move the sliding block 28. The movable block 28 slides on the sliding column 26 until the upper part of the sliding block 28 contacts the bottom groove of the fixed truncated cone 27. At this time, the locking block 31 slides along the curved surface of the fixed truncated cone 27 until it disengages from the fixed truncated cone 27, so the dustproof net 23 is removed. After cleaning the dustproof net 23, the dustproof net 23 is inserted into the mounting bracket 21, so that the locking block 31 slides along the curved surface of the fixed truncated cone 27 until the locking block 31 contacts the bottom of the fixed truncated cone 27. At this time, the dustproof net 23 is installed inside the mounting bracket 21. Therefore, the dustproof net 23 can be quickly disassembled and installed by pushing and pulling the dustproof net 23, which is convenient for cleaning the dustproof net 23.
[0038] 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 screening device for high aspect ratio wollastonite powder, comprising a shell (1), characterized in that: The screening machine (2) is installed inside the outer shell (1). The mounting shell (3) is fixedly connected to the outside of the outer shell (1). The mounting shell (3) is fixedly connected to the inside of the mounting shell (3). The fixed rod (8) is rotatably connected to the outside of the fixed rod (8). The L-shaped rod (10) is fixedly connected to the outside of the helical gear (9). One end of the L-shaped rod (10) is rotatably connected to the rotating plate (11). One end of the rotating plate (11) is rotatably connected to the connecting rod (13). The other helical gear (9) is fixedly connected to the rotating plate (12). One end of the rotating plate (12) is rotatably connected to the outside of the connecting rod (13). The other end of the connecting rod (13) is rotatably connected to the sliding rod (14). The dust collection box (17) is installed outside the outer shell (1). The mounting frame (21) is fixedly connected to the outside of the dust collection box (17). The quick-release assembly is fixedly connected inside the mounting frame (21).
2. The screening device for high aspect ratio wollastonite powder according to claim 1, characterized in that: The quick-release assembly includes a dustproof net (23), with fixed rings (29) fixedly connected to the inner four sides of the dustproof net (23). Sliding rods (30) are slidably connected to both sides of the inner side of the fixed rings (29). A locking block (31) is fixedly connected to one end of the sliding rod (30). A spring (32) is sleeved on the outside of the sliding rod (30). Fixed blocks (25) are fixedly connected to the inner four sides of the mounting bracket (21). A sliding column (26) is fixedly connected to one end of the fixed block (25). A fixed frustum (27) is fixedly connected to one end of the sliding column (26). A sliding block (28) is slidably connected to the outside of the sliding column (26).
3. The screening device for high aspect ratio wollastonite powder according to claim 1, characterized in that: The mounting shell (3) is fixedly connected to a protective shell (5), and the protective shell (5) is fixedly connected to a motor (6). The drive end of the motor (6) is fixedly connected to a helical gear (7), and the two helical gears (9) are meshed with the helical gear (7).
4. The screening device for high aspect ratio wollastonite powder according to claim 1, characterized in that: Both sides of the sliding rod (14) are slidably connected to the inner groove of the outer shell (1), and two telescopic rods (15) are fixedly connected to the bottom of the sliding rod (14), and a cleaning plate (16) is fixedly connected to the bottom of the two telescopic rods (15).
5. The screening device for high aspect ratio wollastonite powder according to claim 4, characterized in that: The screening machine (2) has a screen plate (4) installed inside, and the outside of the cleaning plate (16) is in contact with the top of the screen plate (4).
6. The screening device for high aspect ratio wollastonite powder according to claim 1, characterized in that: The dust collection box (17) is slidably connected to a filter plate (20), and the dust collection box (22) is slidably connected to the inside of the dust collection box (17).
7. The screening device for high aspect ratio wollastonite powder according to claim 1, characterized in that: The vacuum box (17) is fixedly connected to a vacuum pipe (18), and the other end of the vacuum pipe (18) is fixedly connected to a vacuum cover (19).
8. The screening device for high aspect ratio wollastonite powder according to claim 1, characterized in that: A fan (24) is installed inside the dust collection box (17), and a feed inlet (33) is fixedly connected to the top of the outer shell (1).