Treatment of problems in spray granulation of small spray dryer

The spray dryer is mainly suitable for the production of micro particle powder in the laboratories of universities, research institutes and food pharmaceutical and chemical enterprises, and is widely applicable to all solutions such as emulsions and suspensions It is applicable to the drying of heat sensitive substances, such as biological products, biological pesticides, enzyme preparations, etc because the materials ejected are only exposed to high temperature when they are sprayed into aerosol size particles, they are only heated instantaneously, which can keep the active ingredients of these active materials from being damaged after drying The small spray dryer has the problem of spraying and granulation The small spray dryer is widely used According to the characteristics of materials, it can be used for hot air drying, centrifugal granulation and cold air granulation Most products with different characteristics can be produced by this machine Because the drying process is completed in an instant, the particles of the finished product can basically keep the globular shape of the droplets, and the product has good dispersion, fluidity and solubility The production process is simplified and the operation control is convenient Spray drying is usually used for the solution with a solid content of less than 60% After drying, it does not need to be smashed and screened It reduces the production process and simplifies the production process For the particle size, bulk density and moisture of the product, within a certain range, the operation conditions can be changed for adjustment, and the control and management are very convenient In order to protect the materials from pollution and prolong the service life of the equipment, all parts in contact with the materials are made of stainless steel After spraying, the material is atomized into dispersed particles, and the surface area is greatly increased After drying with hot air, the drying process can be completed in a very short time In general, 95% - 98% water can be evaporated in 1-3s at 100-150 ℃ Because the drying process is completed in an instant, the particles of the finished product can basically keep the ball shape similar to the liquid drop, so it has good dispersion, excellent flushing property and high solubility.