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Horizontal spray dryer has rapid development and wide application

The horizontal spray dryer is a form of rapid development and wide application in the drying field. It is suitable for liquid raw materials such as solutions, emulsions and pumpable suspensions to produce powder, granular or block solid products. The spray dryer is spray-dried into a dry powdery, fine-grained product.
Different drying characteristics such as thermal sensitivity, viscosity, and fluidity of the material to be dried, and different quality requirements such as the particle size, particle size distribution, residual moisture content, bulk density, and particle shape of the product, determine the use of different atomizers, airflow Movement mode and structure of drying room.
It mainly has pressure spray equipment and centrifugal spray equipment. With the continuous development and improvement of spray drying, this technology has been applied, for example, in the production of milk powder, whey powder, cream powder, egg powder, fruit juice powder, instant coffee, etc. in the food industry, and in other industries such as biological Products, detergents, ceramics and other industries are also commonly used.
Its working principle: After the air passes through the filter and heating device, it enters the hot air distributor at the top of the drying chamber. The hot air passing through the hot air distributor enters the drying chamber uniformly and flows in a spiral shape. At the same time, the liquid is sent to the installation and drying equipment. With the centrifugal spray head at the top of the chamber, the material liquid is atomized into small mist-like droplets, which greatly increases the surface area of the material liquid and hot air, and the water quickly evaporates, forming a dry product in a short time.
The gas after the slurry is dried by a horizontal spray dryer contains vaporized hexane and a small amount of fine dust. The gas is first sent to a cyclone by a pressure fan, and the dust is initially separated, and then sent to condensation. In the washing tower, the gas is washed, and the hexane gas contained in the gas is condensed out and collected at the bottom of the washing tower. The washed gas is sent to an oil-gas heat exchanger for heating and reuse.
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