The application of mixing 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 kinds of equipment:
At present, there are more than 200 manufacturers of mixed granulators in China, three or five people, and ten individuals are a factory, and regardless of technical strength, they are also put into production. After the conversion or closure, the after-sales and spare parts supply is very There are big hidden dangers, and there are also pharmaceutical companies suffering. Changzhou step drying equipment This time to talk about the choice of granulators for your reference.
1. Select the sandwich pot.
Because the single-layer pot is easy to shake and unstable during the production process, the sandwich pot can be cooled by heating for some special materials, which can meet the production requirements, and is not easy to be deformed at the bottom in the long-term pharmaceutical process. The step drying product is designed as a sandwich pot. The design period is 10 years without deformation.
2. Stir the gap between the paddle and the bottom of the pan.
The national standard stipulates that the gap is 2mm. In actual production, especially the Chinese medicine extract and the high-viscosity Chinese medicine extract, the gap of 2mm is easy to produce the bottom, and it is very difficult to remove after the bottom, so that the pot cannot be repaired after deformation. The company will make this gap within 0.5mm, and the equipment clearance of our company can achieve the accuracy within 1mm, which better solves the problem of uneven accumulation and mixing of similar products. The design parameters are not deformed for 10 years.
3, the transmission system
Many wet granulator power systems use V-belt and pulley drive (low cost), resulting in insufficient agitation power during long-term production, and easy to slip. The use of timing belt and timing belt drive ensures long-term manufacturing. Powerful, more able to ensure production requirements. The step drying equipment adopts the imported or domestic high-quality synchronous belt synchronous wheel (models such as parts list) transmission, which can provide full power, and the design parameters are 8 years without replacement.
4, frequency conversion control system
In the process of granulation, the rotation speed requirements of the mixing blades are different in different time periods. Only the two-speed motor can not meet the production requirements. The inverter control can meet the production process and achieve good granulation effect. . The step-drying paddle is controlled by French Schneider's frequency converter, which can guarantee the production of different kinds of traditional Chinese medicine and western medicine. Design capacity is not replaced for 8 years.
5, sealing, cleaning system
If black spots and spots are generated during the granulation process, the whole pot material will be scrapped. The paddle shaft of the step drying equipment is sealed with air and water. The cutting flying knife main shaft adopts double sealing of gas seal and metal hard seal (ie mechanical seal) to ensure 100% sealing effect, and the cleaning is cleaned with water. If an ordinary rubber sealing system is used, there will be serious leakage problems sooner or later, resulting in material scrapping, and the sealing and cleaning system is also the key point of this equipment. Please review the experts to pay attention to this. The step drying design capacity is not replaced for 8 years.
6. The "R" corner detail at the bottom of the pot
It is also critical that the paddles match the R angle inside the bottom of the pot. If the R angle is too small, the material cannot be rolled from bottom to top and the appropriate R angle is very important for the uniform mixing of the materials. The R angle is very demanding in the manufacturing process. The step-drying bottom R angle is manufactured by a stretching process. Different from the welding process of other manufacturers, the R-angle joints welded by the welding are combined with materials, water and other corrosive materials for a long time, which is easy to penetrate and leak. The design parameters are never leaked. Until the equipment is scrapped. Please review the experts!
7, man-machine interface, PLC system
The step size drying adopts German Siemens PLC system and touch screen adopts Taiwan brand products. The main components are Chint and Delixi products.
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