Comparison of powder yield between special Chinese medicine extract and high-speed spray dryer

ZPG special spray dryer for traditional Chinese medicine extract is a special spray dryer. The high-speed centrifugal spray device for traditional Chinese medicine extract is the application of centrifugal spray drying technology in the drying of specific materials. It also uses a high-speed centrifugal atomizer to disperse the materials into mist. It is a drying device that is in full contact with hot air to complete instant drying and form a powdery finished product.

The ZPG special dryer for traditional Chinese medicine extract is a spray dryer specially used to solve traditional Chinese medicine extract and plant extracts. The special dryer for traditional Chinese medicine extract solves the following situations that occur in the original LPG high-speed spray dryer during the drying of traditional Chinese medicine extract:

When the liquid material (filtered liquid material) is sent to the high-speed rotating centrifugal atomization disk, the material liquid stretches into a film on the rotating surface under the action of the centrifugal force of the rotating disk and continuously moves to the edge, which causes the material to stick to the wall and the powder collection rate Will be low.

It is atomized when leaving the edge, and the atomized droplets (the surface area is greatly increased) exchanges heat with the hot air, and the drying process is completed quickly within 10-30 seconds. If the material stays on the wall for a long time, it will cause damage to the material. Coking deterioration is difficult to clean and does not meet GMP requirements.

In summary, the output will be low. For example, the LPG-150 spray dryer can only process 50-60kg/h of liquid. The ZPG special dryer for Chinese medicine extract adopts a fully enclosed form, and all parts are made of stainless steel, equipped with a three-stage purification device, and the filtered air reaches the level of 100,000. The simplified wall and the top are equipped with cold wall devices to make the temperature of the tower wall lower than the gas temperature in the tower to about 10°C. The material staying on the wall will not cause coking and deterioration, which greatly increases the powder collection rate and does not cause wall sticking. phenomenon.

In view of the above situation, our factory designed a new type of spray dryer for traditional Chinese medicine extract according to the material properties and technological requirements of traditional Chinese medicine extract. The dried material has good color and does not deteriorate, which greatly improves the economic benefits of drying equipment manufacturers.