Method and apparatus for pre-cleaning parts made of plastic

Abstract

The invention relates to a method for pre-cleaning parts made of plastic as part of a recycling process, wherein foreign bodies to be removed adhere to the parts, in particular for removing foreign bodies on parts made of plastic, preferably for removing labels, dirt, etc. on used plastic bottles, said method being characterized in that the foreign bodies are removed from the parts by mechanically loading the parts. A device for applying the method is characterized by a housing having a chamber for accommodating the parts, means for mechanically acting upon the parts and means for separating the foreign bodies released from the parts and for discharging the foreign bodies and parts onto separate paths being provided in the chamber.

1 . An apparatus for pre-cleaning parts, which are made of plastic and to which foreign bodies to be removed are stuck, as part of a recycling process, more particularly for removing foreign bodies disposed on parts made of plastic, preferably for removing labels, dirt, etc. disposed on used plastic bottles, said device comprising:
 a housing comprising a chamber for receiving the parts;   means for applying mechanical stress to the parts;   means for separating the foreign bodies released from the parts; and   means for discharging the foreign bodies and parts onto separate paths being provided in the chamber.   
     
     
         2 . The apparatus as defined in  claim 1 , wherein the housing together with the chamber provided therein is in the form of a centrifugal device. 
     
     
         3 . The apparatus as defined in  claim 1 , wherein the housing comprising the chamber is in the form of a drum. 
     
     
         4 . The apparatus as defined in  claim 1 , wherein a rotor comprising stress-applying means is provided in the housing. 
     
     
         5 . The apparatus as defined in  claim 4 , wherein the rotor rotates relative to the housing or vice versa. 
     
     
         6 . The apparatus as defined in  claim 4 , wherein the stress-applying means are in the form of bars, vanes, paddles or the like. 
     
     
         7 . The apparatus as defined in  claim 4 , wherein the stress-applying means comprise blades. 
     
     
         8 . The apparatus as defined in  claim 6 , wherein the bars, vanes, paddles or the like are equipped, at least in part, with blades.