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In the processing and transportation of powder materials, adhesion is one of the main factors leading to poor fluidity. Powders usually have a large specific surface area and are prone to contact and adhesion with other materials or pipe surfaces in the equipment. When powders adhere to each other, the fluidity of the material will be greatly reduced, which may cause the material to block the pipeline, jam the mechanical equipment, and even increase the difficulty of subsequent processing. In addition, adhesion will also cause uneven distribution of materials, affecting the quality of the final product, especially in industries such as pharmaceuticals, fertilizers, and food, where product consistency and quality stability are extremely high.
Granulator has successfully reduced the adhesion of powder materials through a series of innovative designs and processes, thereby improving fluidity. The specific methods are as follows:
1. Granulation treatment to reduce contact area
One of the basic functions of Granulator is to convert powder raw materials into granules. Compared with powders, the specific surface area of granular materials is greatly reduced, which means that the contact surface between particles is also reduced accordingly. Through granulation, the particles of the powder can be better dispersed, thereby reducing the adhesion between particles. During the granulation process, the powder is compressed or extruded by mechanical force to form particles of uniform size, which not only effectively avoids excessive contact between particles, but also improves the fluidity of the particles, allowing them to pass smoothly through the conveying system in the production line.
2. Improve the shape of particles
In the granulation process of Granulator, the shape of the particles often has a significant impact on the fluidity of the material. Granulator controls parameters such as pressure, speed and temperature during the granulation process to make the particles present a regular shape, such as spherical or nearly spherical particles. These regular particles have less friction during the flow process and are not easy to adhere to each other, thereby improving the overall fluidity. Compared with irregularly shaped particles, regular particles are more stable during transportation, mixing and storage, greatly reducing the accumulation and adhesion problems caused by irregular shapes.
3. Control of wetting and drying
In the wet granulation process, the wet powder becomes the precursor stage of the particles. The right amount of wetting can make the particles more compact and uniform during the molding process. However, if the humidity is too high, the particles are prone to adhesion, affecting the fluidity. Granulator ensures that the particles are not overly bonded by precisely controlling the amount of wetting liquid added during this process. After wet granulation, the granules need to be dried to remove excess water and further enhance the strength of the granules.
4. Add appropriate additives
In some applications, in order to further reduce the adhesion between particles, Granulator can also add appropriate amounts of additives such as lubricants, adhesives or surfactants. The function of these additives is to reduce the friction and adhesion between particles, making the particles smoother during processing and transportation. Especially in the pharmaceutical industry, the use of surfactants can effectively reduce the electrostatic effect and mutual adhesion of particles, thereby ensuring the uniformity and high quality of drugs.
