Spray drying technology

Abstract

The invention discloses a spray drying technology. The spray drying technology comprises the steps of allowing air to enter an air distributor at the top of a centrifugal spray drier after filtrationand heating, allowing hot air to enter a drying chamber spirally and uniformly, conveying material liquid to the centrifugal spray drier, allowing a high-speed centrifugal atomizer to rotaionally spray the material liquid to very fine vaporous liquid beads to be contacted with the hot air in parallel, continuously drying a material, outputting a finished product from the centrifugal spray drier and a discharge port at the bottom of a primary deduster, collecting the finished product to a material frame, and discharging waste gas of the centrifugal spray drier by the action of an exhaust fan after material filtration by the primary deduster, a secondary deduster and a wet deduster. The technology is reasonable in design and high in drying speed; the product has good uniformity, flowabilityand solubility and is high in purity; and the possibility of wall adhesion of the material is low during heat sensitive material processing.

Description

technical field [0001] The invention relates to a spray drying process suitable for producing powdery, granular and other solid products from solution, emulsion, suspension and pasty liquid raw materials. Background technique [0002] In the fields of chemical industry, petrochemical industry, light industry, food, medicine, building materials, ceramics, etc., it is often necessary to dry some solutions, emulsions, suspensions, and pasty materials into dry powder, which is generally achieved by spray dryers. The technology adopted in the traditional spray dryer is to atomize the material first, and then dry it with heated air to dry it into powder. But it has the following disadvantages: 1. It will cause uneven or excessive heating of the product and affect the quality of the product. It is not suitable for the processing of heat-sensitive materials, and it is difficult to ensure the color and fragrance of heat-sensitive materials; 2. The material is easy to stick to the wal...

AI Technical Summary

Problems solved by technology

But it has the following disadvantages: 1. It will cause uneven or excessive heating of the product and affect the quality of the product. It is not suitable for the processing of heat-sensitive materials, and it is difficult to ensure the color and fragrance of heat-sensitive materials; 2. The material is easy to stick to the wall ; 3. The product has a high degree of inclusion

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