| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a heat treatment facility for waste plastics not only capable of removing foreign matter from the waste plastics by a simple device but also capable of improving a crushability of solidified waste plastics after the heat treatment. <P>SOLUTION: The heat treatment facility equipped with a jacketed side wall in which a heating medium passes through, a container for receiving the plastic waste and for keeping it at a molten state, a circulating pipe for recharging the molten waste plastic extracted from an exhaust valve attached at the bottom of the container to the upper part of the container, a means of cleaning an exhaust gas extracted from the upper part of the container and a means of supplying the heating medium, is modified. That is, an internal rotating gear pump in the circulating piping for transferring the molten waste plastic is arranged between the exhaust valve of the circulating piping and the upper part of the container, at the same time, a means of removing the foreign matter contained in the molten waste plastic transferred is provided between the internal rotating gear pump in the circulating pipe and the upper part of the container. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
