In industrial dewatering and screening processes, screen structure directly impacts efficiency and maintenance costs. Traditional flat screens are prone to clogging and poor material stratification, while fully raised screens lack grading precision. The advanced “raised + flat” combined design solves this: the front section uses inverted-V wave surfaces to break surface tension, continuously flip particles, prevent clogging from wet or fine materials, and stratify the material bed for higher throughput. The rear flat section provides precise final grading with uniform mesh openings and high structural strength. This combination delivers fast, non-clogging pre-screening and accurate, durable final separation – reducing cleaning frequency and extending screen life in mining, coal slime dewatering, sand washing, and tailings processing.