1. Effectively prevent adhesive substances from being drawn between the return belt and the roller, avoiding the belt from being scratched, punctured, or deviated. 2. Reduce residual materials on the return belt from the source, prevent spillage along the way, and achieve clean production. 3. Maintain belt stability and prevent deviation-induced wear. 4. Protect rollers and idlers, reducing component wear and tear. 5. Keep the belt clean for higher operating efficiency and lower energy consumption. 6. Adopt a combination of multiple cleaners to achieve a cleaning rate of over 99%.