Raw material feeding system and raw material feeding method

Abstract

This patent refers to a raw material supply system and a raw material supply method for the pyrolysis of plastic waste, including PVC and PET. The test feed system includes: a slaked lime feeder (12) with a structure to feed slaked lime to plastic waste; an operating controller (15) with a structure to command the slaked lime feeder (12) to feed slaked lime to plastic waste, the slaked lime fed has a molar mass of 1 to 4 times the total molar mass of polyvinyl chloride and polyethylene terephthalate in plastic waste; The melt dechlorination device (18) is designed to dechlorinate polyvinyl chloride and hydrolyze polyethylene terephthalate by mixing plastic waste and quicklime while heating the plastic waste and quicklime; the degassing hopper (20) is connected to the melt dechlorination device (18); and the raw material feeding device (22) is designed to distribute the molten plastic waste from the degassing hopper (20) to the pyrolysis furnace (6).