From the standpoint of dry product quality, high-speed mixing dryers are the best, followed by rotary flash dryers and tube bundle dryers.
From the standpoint of the cost of the dried product, the cost of the tube dryer is the lowest, followed by the high-speed stirring dryer and the rotary flash dryer.
Tube bundle drying equipment uses heat as steam, and other dryers use mechanical grate coal-fired hot air furnace or hand-fired hot air furnace.
The tube bundle dryer system has a simple composition, but has a complex structure and many maintenance points. The structure of the high-speed stirring dryer and rotary flash dryer is simple, and maintenance and maintenance are relatively easy.
Although the tube dryer is characterized by high efficiency, because the MSG bacteria protein is a high viscosity material, and the tube bundle dryer is difficult to handle high viscosity materials, only the back mixing process can be used to mix a large amount of dry material in the wet material. In order to reduce the viscosity of the material, the use efficiency of tube bundle drying is rather low on the dryness of MSG protein. The water removal capacity is reduced from 4-5 kg ​​water/M2.h to 3-3.5 kg when processing general materials. Water/M2.h.
Therefore, nowadays, when manufacturers use MSG protein drying equipment, the tube dryer is rarely used. Tubular dryers are currently mainly used for the drying of germ, fiber, distiller's grains and other materials.
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