| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an apparatus used for continuously converting waste plastics into an oil and being capable of measuring the weight, flow rate, inventory, level, etc., of the melt by providing valves, a branching pipe and a melt sampling chamber with the main pipe of an apparatus consisting of an extruder for kneading mixed waste plastics containing vinyl chloride polymers. SOLUTION: This invention provides an apparatus for continuously thermally converting waste plastics containing vinyl chloride polymers into an oil, wherein a branching pipe 24 is provided in the main pipe 4a at the inlet of a heat decomposition furnace 5, the pipe 24 is connected through a valve 26 to a chamber 25 for collecting a melt of waste plastics, a valve 28 is provided in the main pipe in position downstream of the branching point of the branching pipe. During an ordinary operation, the valve 26 is kept shut. When the flow rate of the melt is measured, the valve 28 is shut to sample the melt in a container 30, and the melt is weighed with a weight meter 29. The residue is taken out in a container 17 within a residue discharge chamber 16 and weighed with a weighing meter 32. The flow rate, inventory, etc., of the melt are estimated from these measurements.</p> |
