| 摘要 |
<p>1,190,395. Comminuting apparatus. FELLNER & ZIEGLER G.m.b.H. 1 Sept., 1967, No. 4019267. Heading B2A. [Also in Division B5J Plastics material is comminuated in a container 13 by radially-adjustably-clamped beater bars 5 cooperating with adjustable fixed plates Or pins 8. The waste becomes heated during comminuation and coheres to form agglomerates which are then cooled by the supply of further plastics, liquid, and/or gaseous coolant to the interior of the container whilst the arms 4 continue to rotate, preferably at a lower speed with drive from a pole-changing driving motor. The rotary arms 4; may be in several planes, and are axially adjustable by displacement of the driving motor on the hub 3 of which they are fixed. The coolant may comprise liquid introduced through nozzles 114 and/or a coolant gas introduced through nozzles 15 situated in the base of the container. The gas may be extracted through a coolant outlet 16 connected to a fan. The process may be automatically controlled by a timing device. The container 13 has an inlet 11, an outlet 9 closed by a flap 18, and a thermometer 17 which controls the introduction of coolant. Alternatively or in addition to liquid and gas, the coolant may comprise plastics material in the form of foil shreds, powder or previously agglomerated and cooled material which adhere to the surface of the agglomerates. The added cooled material preferably comprises 10% of the quantity in the container and may be of the same or of a different plastics material. Other components may be introduced with the coolant which mix or react chemically with the agglomerates. These can be supplied in dry dissolved or emulsified form. Substances accelerating the agglomeration can also be added. Injected liquid coolant is preferably completely vaporated during the cooling process. The agglomerates may be discharged from the container pneumatically by the coolant gas, and may be supplied to a hopper from which they are continuously conveyed to an extruder.</p> |
