The present invention relates to the technical field of twin-screw devices, and specifically discloses a counter-rotating twin-screw extruder with a self-cleaning function and a self-cleaning method thereof. The extruder comprises a barrel, twin screws arranged in the barrel, a feed inlet and an extrusion outlet arranged on the barrel, as well as cleaning balls and a cleaning water pipe. The cleaning water pipe is arranged on the barrel, with its pipe orifice extending into the barrel and facing the twin screws. The cleaning balls enter the barrel from the feed inlet, move around the twin screws along with the rotation of the twin screws, and are discharged from the extrusion outlet after moving forward. The cleaning balls clean the twin screws by contacting the surface of the twin screws. Compared with existing cleaning methods, the present invention arranges cleaning balls and a cleaning water pipe in the barrel. During the normal operation of the twin-screw extruder, the cleaning balls contact and rub against the inner wall of the barrel and the twin screws to achieve a cleaning effect, without disassembly and assembly of the twin-screw device. The cleaning process is more convenient and safe, and the cleaning balls can be reused, saving cleaning costs.
Country Code: CN
Application Number: CN202410530883.0
