The pressure curved screen is an indispensable slurry separation equipment in starch production. It uses multi-stage countercurrent washing T technology for screening, which can effectively improve the starch yield and starch quality. The main part of the screen surface inlet, screen shell and feeding parts It is made of high-quality imported corrosion-resistant stainless steel materials and is an alternative to imported pressure curved screens. It is welded by a stainless steel wedge-shaped surface layer wire and a support bar. During operation, the wet material is sprayed from the nozzle under the pressure of 0.2-0.4Mpa, and the high feeding speed produces tangential force. The wedge-shaped surface layer filaments are dumped and have a certain angle to form a knife edge to scrape the material into a thin layer, so that the water and fine materials are evenly dispersed. The so-called "scraping" effect is to make the material easy to classify, and the entire screen surface is Essential self-cleaning. The screened material is discharged from the slag outlet, and the screened material enters the slurry outlet.