In the extrusion production of plastics, rubber, synthetic fibers, and other materials, the efficient and stable operation of the system directly impacts product quality and production efficiency. However, actual production often faces the following core issues: Risk of Contamination Raw materials may contain impurities such as metal shavings (e.g., aluminum foil, copper wire), sand, wood chips, or degraded additives. Recycled plastic materials, in particular, harbor more complex contaminants. I