| 摘要 |
An apparatus for processing thermoplastic synthetic plastic material to be recycled comprises a first receptacle ( 1 ) and a second receptacle ( 2 ) for the material to be processed. Within both receptacles ( 1, 2 ) tools ( 21 ) for mixing and heating the material circulate around a vertical axis each. The material reaches the second receptacle ( 2 ) which is connected to an evacuating means ( 9 ), from the first receptacle ( 1 ) through a connecting conduit ( 3 ). The first receptacle ( 1 ) has above an intake opening ( 19 ) for the material to be processed, and the mouth of the connecting conduit ( 3 ) in the second receptacle ( 2 ) is disposed at a higher level than the tools ( 21 ) circulating in this receptacle ( 2 ). The material processed is carried off the second receptacle ( 2 ) through a discharge opening ( 49 ) by means of at least one screw ( 47 ), whereby this receptacle is vacuum-tightly closed. To the intake opening ( 19 ) of the first receptacle ( 1 ) that also is connected to an evacuating means ( 9 ), a sluice ( 6 ) is connected. In both receptacles ( 1, 2 ) at least two tools ( 21 ) each circulate in different levels, disposed one upon the other, wherein the intake opening ( 19 ) in the first receptacle ( 1 ) is disposed higher than the uppermost tools ( 21 ) circulating in this receptacle 1. The discharge opening ( 49 ) of the second receptacle ( 2 ) is disposed at least substantially at the level of the lowermost tools ( 21 ) circulating in this receptacle ( 2 ). In each one of the two receptacles ( 1, 2 ) at least one temperature sensor ( 32 ) is provided for each plane of the circulating tools ( 21 ) which sensor is disposed higher than its associated plane.
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