目前国内市场上出售的减水剂大部分是粉状产品,其主要优点是运输方便。但是缺点也很突出,如能耗高。喷雾干燥所需要的热能占干燥成本三分之二以上,是生产中主要耗能部分。化工生产过程中,干燥的脫水过程比其他单元操作过程(如蒸发、过滤、压榨等)的生产成本要高得多,其主要原因就是热耗高。在干燥过程中除去产品中一公 At present, most of the water reducers sold on the domestic market are powdery products, and its main advantage is convenient transportation. However, the disadvantages are also very prominent, such as high energy consumption. The thermal energy required for spray drying accounts for more than two-thirds of the drying cost and is the main energy-consuming part of production. In the chemical production process, the dry dehydration process is much more expensive than other unit operations (such as evaporation, filtration, pressing, etc.), which is mainly due to high heat consumption. Removes a product from the product during the drying process