The invention discloses a waste plastic cleaning and sorting
system. The waste plastic cleaning and sorting
system comprises a first shredding
machine, a pre-washing
machine, a three-group sorting device, a
crusher, a centrifugal
machine and a
cyclone separation device; the first shredding machine is used for shredding waste plastic; an input end of the pre-washing machine is connected with the first shredding machine and is used for receiving the shredded waste plastic; the three-group sorting device comprise a feeding screw, a
mixing tank, a stirrer, a precipitator, a heavy
slag filling machine, a first
slag extracting machine and a light material filling machine; an input end of the
crusher is connected with an output end of the light material filling machine; an input end of the centrifugal machine is connected with an output end of the
crusher; the
cyclone separation device comprises a mixing water tank, a swirler, a
sedimentation tank, a second
slag extractor and a friction cleaning machine; an input end of the mixing water tank is connected with an output end of the centrifugal machine; an output end of the swirler is respectively connected with the mixing water tank, the
sedimentation tank and the second slag extractor; the
precipitation tank is connected with the friction cleaning machine; and the friction cleaning machine is used for cleaning and outputting PP / PE (
polyethylene) plastic. According to the waste plastic cleaning and sorting
system, the automatic
recovery is achieved, the plastic
recovery rate is improved, and the operation is stable.