Pelletizing equipment for polylactic acid oligomer

The invention discloses granulation equipment for polylactic acid oligomer, and belongs to the technical field of granulation equipment, the granulation equipment comprises a material conveying pipe, an outer heating assembly and an inner heating assembly, the outer heating assembly comprises a heat conduction cavity, the inner heating assembly comprises an inner sleeve, and the inner sleeve is connected to the interior of the material conveying pipe in a sleeved mode. The heat conduction oil can conduct heat to the conveying pipe from outside to inside, when the heat conduction oil flows in the center pipe and the inner sleeve, the heat conduction oil can conduct heat to the conveying pipe from inside to outside, when the soft solid polylactic acid oligomer flows into the rolling gap, the soft solid polylactic acid oligomer is rolled by the rolling wall and the conical wall, the soft solid polylactic acid oligomer in the rolling gap is thinned, and the soft solid polylactic acid oligomer in the rolling gap b