The structure of the single plate screen changer consists of a main body, a reciprocating sliding plate, a hydraulic cylinder, a heater, a detachable porous plate, and a centralized wiring protection device (which can be used for centralized wiring, safety protection, and waste collection). The single plate hydraulic screen changer is designed with a main body as the overall structure, and adopts compensatory sealing to ensure no leakage and smooth flow channels. It is a widely used and cost-eff