Comparison of powder extraction rate between traditional Chinese medicine extract and high-speed spray dryer

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

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

When the liquid material (filtered liquid material) is sent to the high-speed rotating centrifugal atomizing disk, the material liquid is stretched into a film on the rotating surface by the centrifugal force of the rotating disk and continuously moves to the edge to cause the material to stick to the wall and the powder collection rate Would be low.

When it leaves the edge, it has been atomized. After the atomization, the droplets (the surface area is greatly increased) exchange heat with the hot air, and the drying process is quickly completed within 10-30 seconds. If the material stays on the wall for a long time, the material will produce The phenomenon of coking deterioration is difficult to clean and does not meet GMP requirements.

In summary, it will lead to low output, such as LPG-150 spray dryer, its output can only handle 50-60kg/h feed liquid. The special dryer for ZPG traditional Chinese medicine extract is fully enclosed, all parts are made of stainless steel, equipped with a three-level purification device, and the filtered air reaches the requirements of 100,000 levels. Simplified and the top is equipped with a cold wall device, so that the temperature of the tower wall is lower than the temperature of the gas in the tower to reach about 10 ℃, the material staying on the wall will not cause coking and deterioration, greatly increasing the powder collection rate, and will not cause wall sticking phenomenon.

In view of the above situation, our factory has designed a new type of traditional Chinese medicine extract spray dryer according to the material properties and process requirements of traditional Chinese medicine extract. The dried material has good color and no deterioration, which greatly improves the economic benefits of drying equipment manufacturers.