PURPOSE: To provide equipment which serves to thermally decompose waste plastics to form an oil, permits the selection and separation of nonplastic matter in the waste material without spending much labor, needs no treatment for a volume reduction, and makes it possible to efficiently and economically convert the thermal decomposition gas into a hydrocarbon oil in a state in which it is isolated from the air without releasing the gas in the air.
CONSTITUTION: This equipment is provided with: a unit for extracting waste plastics with a solvent; a tank for storing the extract; an oven for the thermal decomposition of the extract; a heat exchanger for liquefying the thermal decomposition gas ; a hermetically sealed container holding the thermal decomposition oven and the heat exchanger therein and isolating them from the air; a tank for storing a liquefied oil; and a circulation unit causing the oil in the tank to flow back to the solvent extraction unit.
MIYATA SEIICHIRO
MITSUI NORIO