A method for separating label paper from waste plastic bottles relates to the technical field of plastic recycling. Firstly, waste plastic bottles are subjected to preliminary vibratory separation by a vibrating separating sieve to remove loosely attached label paper and impurities on the surface of plastic bottles. The preliminarily separated waste plastic bottles are manually sorted for a second time. The secondarily sorted waste plastic bottles are conveyed by a conveyor into a label rolling cylinder for rolling cutting, then enter a winnowing separation cylinder for tertiary sorting. The bottle bodies and part of the label paper after tertiary sorting enter a rotary separation cylinder, in which a fan blows air to blow out sheet label paper floating inside from the feed port. The bottle bodies and remaining label paper are discharged from the separation cylinder and manually sorted a fourth time. The thoroughly cleaned bottle bodies enter a crusher for crushing. The method of the invention is simple and convenient to implement. Multi-stage sorting completely separates label paper without generating any waste, reduces label inflow into the crushing process and improves the purity of plastic bottle pellets.

Area Code: CN

Application Number: CN201310205169.6