Starch capsule shell ultra high speed three-stage disperser
Capsule shell is an egg shaped hollow shell used to contain solid powder particles. Its contents enter the human digestive system together and can dissolve quickly, reliably, and safely; Mainly used for drugs andIn the field of food and other industries, it can solve the problems of difficult entry of drugs, poor taste, and discomfort in the stomach. Currently, the widely used capsule shells are mostly processed from gelatin.
The disperser adopts a German Bergmann double end mechanical seal, which can operate continuously for 24 hours while ensuring cooling water. However, it is difficult for ordinary emulsifiers to operate continuously for a long time, and ordinary emulsifiers cannot withstand high-speed operation. It can handle large quantities, operate more smoothly, and is more convenient, suitable for industrial online continuous production. The particle size distribution range is narrow, the dispersion effect is good, and there are no dead corners. The material is cut through dispersion..
A method for preparing starch capsule shells, comprising the following steps: a、 Weighing raw materials; b、Place the various raw materials prepared above in a disperser and stir and mix evenlyC. Use a twin-screw reactive extruder to extrude and pelletize the mixed materials; d、 Using a single screw extruder to prepare pellets into sheets; e、 Adjust the mold temperature of the vacuum forming machine to 80 100 ℃ and preheat for 8 to 10 minutes; f、 Fix the starch sheet on the heating table of the vacuum forming machine and soften it; g、 Lift the mold upwards and activate the vacuum system to evacuate the vacuum formed mold, allowing the softened sheet to adhere to the mold and obtain a starch hard capsule shell. The capsule shell is low-cost, has good film-forming properties, and meets the standards for hollow hard capsule shells in the Chinese Pharmacopoeia in terms of disintegration time, brittleness, external dimensions, microbial limits, and other indicators. It is not affected by air humidity, which can cause hollow capsules to become brittle or soft, and can reduce the requirements for the production environment.
The three-stage high shear dispersion machine is mainly used for the production of micro lotion and ultra-fine suspension lotion. Since three groups of dispersion heads (stator+rotor) in the working chamber work at the same time, after high shearing, the lotion drops are more delicate and the particle size distribution is narrower, so the stability of the generated mixed liquid is better. The three sets of dispersing heads are easy to replace and suitable for different process applications. The different models of machines in this series have the same line speed and shear rate, making it very easy to scale up production. It also meets the CIP/SIP cleaning standards and is suitable for food and pharmaceutical production.
High rotational speed and shear rate are important for obtaining ultrafine suspension lotion. According to some industry specific requirements, its shear rate can exceed 15000rpm, and the rotor speed can reach 44m/s. Within this speed range, turbulence caused by shear forces combined with specially developed motors can reduce the particle size range to the nanometer level. The shear force is stronger, and the particle size distribution of lotion is narrower.
The following is a model table for reference:
model |
Standard flow rate L/H |
Output speed rpm |
Standard linear velocity m/s |
Motor power KW |
Imported size |
Export size |
XRS2000/4 |
300-1000 |
18000 |
44 |
4 |
DN25 |
DN15 |
XRS2000/5 |
1000-1500 |
10500 |
44 |
11 |
DN40 |
DN32 |
XRS2000/10 |
3000 |
7300 |
44 |
22 |
DN50 |
DN50 |
XRS2000/20 |
8000 |
4900 |
44 |
37 |
DN80 |
DN65 |
XRS2000/30 |
20000 |
2850 |
44 |
55 |
DN150 |
DN125 |
XRS2000/50 |
40000 |
2000 |
44 |
160 |
DN200 |
DN150 |
Starch capsule shell ultra high speed three-stage disperser