A dehydration equipment developed by digesting and absorbing advanced foreign technologies. As a supporting equipment for sewage treatment, it has the characteristics of large processing capacity, high dehydration efficiency, and long service life. It can filter and dehydrate suspended solids and sediments after air flotation treatment, and press them into mud cakes to achieve the purpose of preventing and controlling secondary pollution; This machine can also be used for processes such as slurry concentration and black liquor extraction.