Powerful dust removal device for traditional Chinese medicinal materials
By using a perforated plate to drive the sieve cylinder to rotate and revolve, combined with high-pressure air and a large gear ring, the problem of removing clay impurities from the surface of Chinese herbal medicines is solved, achieving efficient dust removal and vibration cleaning of Chinese medicinal materials.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN DONGJI HEALTH MANAGEMENT CONSULTING CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-05
AI Technical Summary
Existing herbal medicine screening devices are unable to completely remove clay impurities from the surface of medicinal materials when the tumbling intensity is insufficient, which affects production quality.
A powerful dust removal device for Chinese medicinal materials was designed. It uses a perforated plate to drive multiple sieve cylinders to revolve around and rotate on their own axis. The perforated plate is rotated by blowing baffles with high-pressure air. The sieve cylinders rotate on their own axis under the action of centrifugal force, which enhances the tumbling intensity and meshes with a large gear ring to improve the vibration effect. It works in conjunction with a vacuum cleaner to clean up the dust.
It effectively improves the removal of clay and dust from the surface of Chinese medicinal materials, ensures the quality of the materials, and achieves thorough dust removal through multi-stage screening.
Smart Images

Figure CN224195217U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of traditional Chinese medicine processing technology, and in particular to a powerful dust removal device for Chinese medicinal materials. Background Technology
[0002] Traditional Chinese herbal medicine screening devices can only vibrate and screen herbs on a single plane, without tumbling and shaking them on the device, resulting in poor screening efficiency and affecting subsequent pharmaceutical production. To address this problem, patent document CN217342341U discloses a multi-stage screening device for dust and impurity removal of Chinese herbal medicines. This solution uses a tumbling mechanism to achieve multi-stage screening, improving impurity removal intensity to some extent. However, for most Chinese herbal medicines, the clay adhering to their surface corners is difficult to remove through simple tumbling, ultimately mixing into the medicine container and forming sediment, affecting production quality.
[0003] Therefore, it is evident that existing technologies, due to insufficient tumbling strength in the dust removal process, fail to thoroughly remove clay impurities from the hard-to-reach areas on the surface of medicinal materials. To address this issue, a powerful dust removal device for traditional Chinese medicinal materials is proposed. Utility Model Content
[0004] In view of the above situation and to overcome the defects of the existing technology, this utility model provides a powerful dust removal device for Chinese medicinal materials, which effectively solves the problems of limited tumbling strength and incomplete removal of clay from dead corners on the surface of Chinese medicinal materials in the existing technology.
[0005] The technical solution includes a cylindrical tube with an open top, a horizontal and actively rotating perforated plate inside the cylindrical tube cavity, and multiple sieve cylinders evenly distributed in a circle on the upper side of the perforated plate. The sieve cylinders are made of filter screens, and the sieve cylinders are connected to the perforated plate by a flexible connection structure. When the perforated plate rotates, it drives the multiple sieve cylinders to revolve through the flexible connection structure.
[0006] The flexible connection structure includes a vertical lower shaft, which is rotatably connected to a hollow plate. An upper shaft is coaxial with the lower shaft on its upper side. The bottom of the screen cylinder is provided with an insertion hole corresponding to the lower shaft, and the lower shaft is inserted into the insertion hole. The upper shaft and the lower shaft are connected by a universal coupling. A circular plate is provided between the close ends of the upper shaft and the lower shaft, and there are multiple compression springs between the two circular plates.
[0007] Furthermore, a small toothed ring is provided on the outer surface of the upper end of the sieve cylinder, and a large toothed ring is provided inside the cylindrical cavity.
[0008] Furthermore, the perforated plate is installed at the bottom of the cylindrical tube via a central shaft, and a motor is connected to the lower end of the central shaft.
[0009] Furthermore, the perforated plate is rotatably mounted on the bottom of the cylindrical tube via a central shaft. Multiple baffles are arranged around the central shaft to form an impeller. An air inlet is provided at the bottom of the cylindrical tube. High-pressure air blows through the air inlet to drive the multiple baffles, thereby rotating the perforated plate.
[0010] This invention has a clever structure. By having multiple sieve cylinders operate simultaneously, they can rotate at the same time, effectively increasing the tumbling and vibration intensity of the medicinal materials inside the sieve cylinders, thus thoroughly cleaning the clay and dust from the surface of the medicinal materials. Attached Figure Description
[0011] Figure 1 This is a three-dimensional view of the entire utility model.
[0012] Figure 2 This is an exploded view of the present invention.
[0013] Figure 3 The three-dimensional structure of the flexible connection structure and screen cylinder in this utility model Figure 1 .
[0014] Figure 4 The three-dimensional structure of the flexible connection structure and screen cylinder in this utility model Figure 2 . Detailed Implementation
[0015] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.
[0016] Depend on Figures 1 to 4 As shown, this utility model includes a cylindrical tube 1 with an open top, a horizontal and rotatable perforated plate 2 inside the cavity of the cylindrical tube 1, and multiple sieve cylinders 3 evenly distributed in a circle on the upper side of the perforated plate 2. The sieve cylinders 3 are made of filter screens and are connected to the perforated plate 2 by a flexible connection structure. When the perforated plate 2 rotates, it drives the multiple sieve cylinders 3 to revolve through the flexible connection structure.
[0017] The flexible connection structure includes a vertical lower shaft 4, which is rotatably connected to the hollow plate 2. An upper shaft 5 is coaxial with the lower shaft 4. The bottom of the screen cylinder 3 is provided with an insertion hole 6 corresponding to the lower shaft 4, and the lower shaft 4 is inserted into the insertion hole 6. The upper shaft 5 and the lower shaft 4 are connected by a universal coupling. A circular plate 7 is provided between the close ends of the upper shaft 5 and the lower shaft 4, and there are multiple compression springs 8 between the two circular plates 7.
[0018] To enhance the tumbling ability of the screen cylinder 3, a small toothed ring 9 is provided on the outer surface of the upper end of the screen cylinder 3, and a large toothed ring 10 is provided inside the cavity of the cylindrical cylinder 1.
[0019] In order to enable the active rotation of the perforated plate 2, the perforated plate 2 is installed at the bottom of the cylindrical tube 1 via a central shaft, and a motor is connected to the lower end of the central shaft.
[0020] In order to achieve the active rotation of the hollow plate 2, the hollow plate 2 is rotatably installed at the bottom of the cylindrical tube 1 via a central shaft. Multiple baffles 11 are arranged around the central shaft to form an impeller. An air inlet 12 is provided at the bottom of the cylindrical tube 1. High-pressure air blows through the air inlet 12 to drive the multiple baffles 11 to achieve the rotation of the hollow plate 2.
[0021] To facilitate the extraction of the sieve cylinder 3, when the rotation speed of the perforated plate 2 is low, the small toothed ring 9 and the large toothed ring 10 do not contact each other, and the sieve cylinder 3 can be easily lifted at this time; when the rotation speed of the perforated plate 2 is high enough, the upper end of the sieve cylinder 3 tilts outward and the small toothed ring 9 contacts the large toothed ring 10, ultimately realizing the rotation of the sieve cylinder 3 and improving the tumbling intensity of the sieve cylinder 3.
[0022] It is worth noting that in order to quickly remove suspended dust from Chinese medicinal materials, this device should be used in conjunction with a vacuum cleaner and placed at the vacuum cleaner's air intake.
[0023] When in use, the Chinese medicinal materials are placed in the sieve cylinder 3. At this time, high-pressure air blows multiple baffles 11 through the air inlet 12. The multiple baffles 11 drive the perforated plate 2 to rotate. The perforated plate 2 drives multiple sieve cylinders 3 to revolve. When the air volume is large enough and the speed of the perforated plate 2 is high enough, the sieve cylinder 3 tilts outward under the action of centrifugal force and meshes with the large gear ring 10. In this way, the sieve cylinder 3 achieves self-rotation, and the tumbling intensity of the Chinese medicinal materials in the sieve cylinder 3 is greatly enhanced. Dust and impurities are cleaned up by the vacuum cleaner in time as they rise with the airflow.
[0024] During the above process, the small toothed ring 9 and the large toothed ring 10 on the sieve cylinder 3 are not always engaged, but rather make contact irregularly at different times. This gives the sieve cylinder 3 a vibration function, which not only increases the vibration intensity of the medicinal materials, but also cleans the dust and impurities on the sieve cylinder 3 in a timely manner, i.e., self-cleaning, greatly improving the dust removal quality of Chinese medicinal materials.
[0025] This utility model has a clever structure. By having multiple sieve cylinders 3 operate simultaneously, they can rotate at the same time, effectively increasing the tumbling and vibration intensity of the medicinal materials within the sieve cylinders 3, thus thoroughly cleaning the clay and dust from the surface of the medicinal materials.
Claims
1. A powerful dust removal device for Chinese medicinal herbs, characterized in that, It includes a cylindrical tube (1) with an opening at the top, a horizontal and actively rotating perforated plate (2) inside the cylindrical tube (1), and multiple sieve cylinders (3) evenly distributed in a circle on the upper side of the perforated plate (2). The sieve cylinders (3) are made of filter screens. The sieve cylinders (3) and the perforated plate (2) are connected by a soft connection structure. When the perforated plate (2) rotates, it drives the multiple sieve cylinders (3) to revolve through the soft connection structure. The soft connection structure includes a vertical lower shaft (4), which is rotatably connected to the hollow plate (2). There is an upper shaft (5) on the upper side of the lower shaft (4) that is coaxial with it. The bottom of the screen cylinder (3) is provided with a corresponding insertion hole (6) for the lower shaft (4), and the lower shaft (4) is inserted into the insertion hole (6). The upper shaft (5) and the lower shaft (4) are connected by a universal coupling. There are circular plates (7) between the ends of the upper shaft (5) and the lower shaft (4) that are close to each other, and there are multiple compression springs (8) between the two circular plates (7).
2. The powerful dust removal device for Chinese medicinal materials according to claim 1, characterized in that, A small toothed ring (9) is provided on the outer surface of the upper end of the sieve cylinder (3), and a large toothed ring (10) is provided inside the cavity of the cylindrical cylinder (1).
3. The powerful dust removal device for Chinese medicinal materials according to claim 2, characterized in that, The hollow plate (2) is installed at the bottom of the cylindrical tube (1) via a central shaft, and a motor is connected to the lower end of the central shaft.
4. The powerful dust removal device for Chinese medicinal materials according to claim 2, characterized in that, The hollow plate (2) is installed at the bottom of the cylindrical tube (1) via a central shaft. Multiple baffles (11) are arranged around the central shaft to form an impeller. An air inlet (12) is provided at the bottom of the cylindrical tube (1). High-pressure air blows through the air inlet (12) to move the multiple baffles (11) and realize the rotation of the hollow plate (2).
Citation Information
Patent Citations
Chinese herbal medicine multi-stage screening equipment for dust and impurity removal
CN217342341U