1. Cleaning the impurities before the porous plate (also called shunt plate) without stopping or disassembling the flange of the extruder reduces the labor intensity of the workers, improves the production efficiency, and also reduces the generation of waste. 2. No cooling or heating is needed to reduce the loss of electric energy. 3. Non-stop and disassembly of machines have improved productivity and workersworking efficiency, and increased benefits for enterprises. 4. More importantly, the imp