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Simple And Stable Operation, Easy To Control
Jul 26, 2018

A spray dryer is a device that can simultaneously perform drying and granulation. According to the process requirements, the pressure, flow rate and orifice size of the liquid pump can be adjusted to obtain the desired spherical particles in a certain proportion. The spray dryer is a type of continuous atmospheric dryer. The liquid material is sprayed in a mist by special equipment to be dried in contact with hot air. Used to dry some heat sensitive liquids, suspensions and viscous liquids, as well as dry fuels, intermediates, soap powders and inorganic salts. Generally, it includes an electric blast drying oven, a vacuum drying oven, a high-speed centrifugal spray dryer, and a sterile spray dryer. The working principle, basic classification, characteristics, technical parameters, application range and operation flow of the spray dryer are introduced in detail.

The spray dryer is a type of continuous atmospheric dryer. The liquid material is sprayed in a mist by special equipment to be dried in contact with hot air. It is used to dry some heat-sensitive liquids, suspensions and viscous liquids such as milk, eggs, tannins and medicines. Also used for drying fuels, intermediates, soap powders and inorganic salts.

The air is filtered and heated to enter the air distributor at the top of the dryer, and the hot air enters the drying chamber in a spiral shape evenly. The liquid is sprayed into a very fine misty liquid droplet through a high-speed centrifugal atomizer at the top of the tower body, and it can be dried into a finished product in a short time by cocurrent contact with hot air. The finished product is continuously output from the bottom of the drying tower and the cyclone, and the exhaust gas is evacuated by the induced draft fan.

The drying speed is fast, the surface area of the liquid is greatly increased after atomization, and in the hot air flow, 95%-98% of the water can be evaporated instantaneously, and the drying time takes only ten to several tens of seconds, which is especially suitable for Drying of heat sensitive materials.

All products are spherical particles with uniform particle size, good fluidity, good solubility, high purity and good quality.

It has a wide range of use. According to the characteristics of the material, it can be dried by hot air or chilled by cold air, which has strong adaptability to materials.

The operation is simple and stable, the control is convenient, and the automatic operation is easy.


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