In the drying process of materials with large water content such as beer grains and alcohol grains, some unnecessary pollution may occur. However, because the heat source heating system of the brewer's grain dryer we use is different, it can be effectively avoided. Next I will make a brief introduction.
Since high-temperature flue gas is used as a drying heat source, how to reduce the pollution of flue gas to materials has become a key issue in the design of drying equipment. Generally, the pollution of flue gas to materials can be reduced from two aspects. Firstly, dust removal treatment should be considered in the design of hot air furnace. In addition, the selection of drying equipment and drying process design should try to reduce the drying time of materials.
The heat source is dried by direct hot air oven, which can obtain higher drying air temperature and improve drying efficiency. At the same time, it can greatly reduce equipment investment and ensure product quality. This is because the material has a short residence time in the machine, a short drying time, and a large amount of moisture evaporation on the surface of the material. From the engineering practice, the direct fire drying has substantially no pollution to the brewer's grains.
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