Chinese medicine particle swing screen

Chinese medicine particle swing screen is the core equipment in the production of Chinese medicine preparations. It is specially designed for particle classification, impurity removal and particle size control. The commonly used screen mesh range is 20-200 mesh. The coarse screening stage (20-60 mesh) is used for the initial screening of raw materials and separation of impurities; the medium screening (60-120 mesh) completes the particle classification; the fine screening (120-200 mesh) is used for the preparation of ultrafine powders or high-precision preparations. The equipment adopts three-dimensional artificial swinging motion, and the screening efficiency can reach more than 95%. The single machine processing capacity is 100-2000kg/h, which is suitable for different production scales.

What is the working principle of the Chinese medicine particle swing screen?

During operation, the drive device drives the screen box to make a swinging motion in an approximately horizontal circular or elliptical shape. Chinese medicine particles enter the screen box from the feed port. Under the action of the swinging motion, the material keeps rolling and jumping on the screen surface. Particles smaller than the sieve hole will fall through the screen to the next layer or the discharge port, and Chinese medicine particles larger than the sieve hole will continue to move on the screen surface and finally be discharged from the corresponding discharge port, thereby realizing the separation of Chinese medicine particles of different particle sizes.

The structure of  Chinese medicine particle swing screen

The Chinese medicine particle swing screen is usually composed of the following main components:

Screen box: equipped with a screen, which is the main component for screening.

Screen: has a specific aperture and is used to separate particles of different sizes. There are usually multiple layers of screens to achieve separation of different particle size ranges.

Driving device: The swinging motion is generated by the motor and the eccentric mechanism to make the screen box and the screen move.

Support device: Supports the structure of the entire screening machine and transmits the swinging motion.

Feed port and discharge port: used for the entry of materials and the discharge of Chinese medicine particles of different particle sizes after separation.

What are the advantages of the Chinese medicine particle swing screen?

Solve the problem of high fine powder content and difficulty in complete separation: the swing screen simulates manual screening, and the material makes a low-speed circular, elliptical or linear reciprocating motion on the screen surface. This mode of movement allows the fine powder to have more time to pass through the screen and fully separate from the larger particles, avoiding the situation where the fine powder is quickly taken away from the screen surface and cannot be effectively separated. The separation effect of fine powder can also be optimized by adjusting the swing amplitude, frequency and inclination angle of the screen.

Accurately classify particles of different sizes: The swing screen for Chinese medicine particles can usually be equipped with multiple layers of screens with different apertures to achieve one-time classification of materials into multiple particle size ranges. Its characteristics of simulating manual screening ensure that the material has enough residence time on each layer of the screen for classification, thereby obtaining a more accurate particle size distribution. By selecting the appropriate screen specifications and combinations, different particle size classification requirements can be met.

Dealing with irregular particle shapes, leading to blockage problems: The motion trajectory of the swing screen has a gentle rolling and throwing action, which helps irregularly shaped particles adjust their posture on the screen surface, reducing the chance of their sharp or irregular parts being directly perpendicular to the mesh, thereby reducing the risk of blockage.

Dealing with the problem of stickiness or hygroscopicity of Chinese medicine particles: Although the low-speed motion of the swing screen for Chinese medicine particles is relatively gentle, its unique motion trajectory can still provide a certain shear force and dispersion effect, which helps slightly agglomerated particles to disperse on the screen surface and increase their chances of passing through the screen. The adhesion of the material can be reduced by selecting a screen material and surface treatment process with self-cleaning function.

Difference between swing screen and vibrating screen for Chinese medicine particles

Common technical parameters of Chinese medicine particle swing screen

Application of Chinese medicine particle swing screen

Chinese medicine particle production: In the production process of Chinese medicine particles, it is used to grade and screen the prepared Chinese medicine particles, remove oversized or undersized particles, ensure the uniformity of the particle size of the product, and improve the product quality.

Chinese medicine powder screening: It can be used for screening Chinese medicine powder, grading Chinese medicine powder according to different fineness requirements, and providing qualified raw materials for subsequent preparation processes.

Chinese medicine pill screening: For the production of Chinese medicine pills, the Chinese medicine particle swing screen can be used to screen out pills of uniform size, remove unqualified pills, and ensure the quality and specification consistency of the pills.

Chinese medicine particle swing screen is an efficient screening equipment widely used in the Chinese medicine industry. The equipment is equipped with multiple screen layers, which can perform multi-stage screening to ensure the accuracy of particle separation. The overall design is compact and suitable for use by small and medium-sized enterprises on production lines. The Chinese medicine particle swing screen not only improves production efficiency, but also provides strong support for the modernization of the Chinese medicine industry.