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The special spray dryer for ZPG 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 is also a drying device that uses high-speed centrifugal atomizer to disperse materials into mist, fully contact with hot air, complete instant drying, and form powder finished products.
The ZPG special dryer for traditional Chinese medicine extracts is a spray dryer specially used to solve the problem of traditional Chinese medicine extracts and plant extracts. The special dryer for traditional Chinese medicine extracts solves the following problems of materials during the drying of traditional Chinese medicine extracts in the original LPG high-speed spray dryer: when liquid materials (filtered liquid materials) are sent to the high-speed rotating centrifugal atomization disk, Under the action of the centrifugal force of the rotary table, the material liquid expands into a film on the rotating surface and moves continuously to the edge, resulting in the material sticking to the wall, and the powder collection rate will be low.
When leaving the edge, the atomized droplets (with a large increase in surface area) will exchange heat with the hot air, and the drying process will be completed quickly within 10-30 seconds. If the material stays on the wall for a long time, the coking deterioration of the material will be difficult to clean, which does not meet the requirements of GMP.
To sum up, it will lead to low output. For example, LPG-150 spray dryer can only handle 50-60kg/h liquid feed. The ZPG special dryer for traditional Chinese medicine extract is totally enclosed, all parts are made of stainless steel, equipped with a three-stage purification device, and the filtered air reaches the level of 100000. The shell and the top are equipped with a cold wall device, which makes the tower wall temperature lower than the gas temperature in the tower to about 10 ℃. The material stays on the wall and will not cause coking deterioration, which greatly increases the powder collection rate and will not cause wall sticking.
In view of the above situation, our factory has designed a new type of spray dryer for Chinese herbal extracts according to the material properties and process requirements of Chinese herbal extracts. The dried materials have good color and do not deteriorate, greatly improving the economic benefits of the drying equipment manufacturers.