TREATMENT APPARATUS FOR WASTE PLASTIC AND TREATMENT METHOD USING THE APPARATUS

PROBLEM TO BE SOLVED: To carry out stabler operation without installing transportation means such as a valve, a pump, etc., between a melting and dechlorinating process and a reforming adjustment process. SOLUTION: The treatment apparatus for a waste plastic is equipped with a melting decomposition part 11 for retaining a waste plastic containing a chlorine component in heated oil, melting the waste plastic and removing the chlorine component contained in the waste plastic, a reforming adjustment part 12 for retaining the molten waste plastic in heated oil, thermally decomposing the molten waste plastic and reforming the waste plastic into heavy oil, a supply part 13 for supplying a waste plastic into the inside of a melting decomposition part, a discharge part 14 for discharging the heavy oil from the reforming adjustment part, a first heating means 16 for heating and keeping the oil stored in the melting decomposition part at temperature T1, a second heating means 17 for heating and keeping the oil stored in the reforming adjustment part at temperature T2equal to the temperature T1or higher than the temperature T1, a first stirring blade 18 for stirring the oil in the melting decomposition part and a second stirring blade 19 for stirring the oil in the reforming adjustment part so as not to cause a vertical convection. The lower part of the melting decomposition part is made to communicate with the lower part of the reforming adjustment part. COPYRIGHT: (C)2005,JPO&NCIPI