The application of hybrid granulator and granulator is also more and more widely used. The following Changzhou step drying equipment will introduce you to the purchase and characteristics of these two types of equipment:
At present, there are more than 200 domestic manufacturers of hybrid granulators, three or five people, and more than ten people are a factory, and regardless of technical strength, it is also put into production. There are big hidden dangers, and some pharmaceutical factories suffer. Changzhou Buchang Drying Equipment will come to talk about some opinions on the selection of granulators for your reference only.
1. Select the sandwich pan.
Because the single-layer pan is easy to shake and unstable during the production process, the sandwich pan can heat and cool some special materials, which can better meet the production requirements, and the bottom is not easy to deform during the long-term pharmaceutical process. The step drying product is designed as a sandwich pan. The design period is 10 years without deformation.
2. The gap between the stirring blade and the bottom of the pot.
The national standard stipulates that the gap is 2mm. In actual production, especially for making Chinese medicine extracts and high-viscosity Chinese medicine extracts, the 2mm gap is extremely prone to bottoming, and it is very difficult to remove after bottoming, making it impossible to repair the pot after deformation The company achieves this gap within 0.5mm, and the accuracy of our equipment within 1mm, which better solves the problems of similar materials such as accumulation and mixing unevenness. The design parameters are 10 years without deformation.
3. Transmission system
Many wet granulator power systems use V-belt and pulley drive (low cost), resulting in insufficient stirring power during long-term production process, and easy to slip. Choosing to use synchronous belt and synchronous pulley drive can ensure long-term production and manufacturing process Full of power, can ensure production requirements. The step drying equipment is driven by imported or domestic high-quality synchronous belt synchronous wheels (models such as parts list), which can provide full power. The design parameter is 8 years without replacement.
4. Frequency conversion control system
In the granulation process, the rotation speed requirements of the stirring blades are different in different time periods. The control of the two-speed motor cannot meet the production requirements. The inverter control can meet the production of multiple processes and can achieve good granulation results. . The mixing paddle with step-length drying is controlled by the frequency converter of French Schneider, which can ensure the production of different kinds of Chinese medicine and western medicine. The design capacity is 8 years without replacement.
5. Sealing and cleaning system
If black spots or spots are generated during the granulation process, the whole pot material should be scrapped. The mixing paddle shaft of the step drying equipment is air-sealed and cleaned with water. The main shaft of the cutting flying knife is protected by a double layer of air seal and metal hard seal (ie mechanical seal) to ensure 100% sealing effect. The water is used for cleaning. If an ordinary rubber sealing system is used, there will be serious leakage problems sooner or later, resulting in scrapped materials. The sealing and cleaning system is also the key to this equipment. The review experts are invited to pay attention to this point. The step-drying design capacity is 8 years without replacement.
6. Detail of the "R" corner at the bottom of the pot body
It is also critical that the mixing paddle matches the R angle inside the bottom of the pot body. If the R angle is too small, the material cannot roll normally from bottom to top to make a proper R angle. It is critical to the uniform mixing of the materials. The R angle requires very high manufacturing process during the manufacturing process. The R-angle at the bottom of the step drying is made by a stretching process, which is different from the welding process of other manufacturers. The R-angle joint made by welding is combined with materials, water, and other corrosive materials for a long time, which is easy to penetrate and leak. The design parameters are never leaking. Until the equipment is scrapped. Attention all review experts!
7. Human-machine interface, PLC system
The step drying adopts the German Siemens PLC system, the touch screen adopts Taiwan brand products, and the main components adopt Chint and Delixi products.
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