Method of and apparatus for collecting and treating refuse containing stretched plastics
AssigneeRosa Emilia Fleischhauer
InventorUrban Stricker
Life of this patent
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Abstract
Refuse containing stretched plastic is collected at each of a plurality of collection locations and is there comminuted and, before or after this comminution, is heated to a relaxation temperature of at least a portion of the stretched plastic thereby embrittling and reducing the volume of this portion. Then batches of the thus comminuted and at least partially embrittled and volume-reduced refuse are transported to a single treatment location. Here the batches of preprocessed refuse are mixed with each other and if desired with unprocessed refuse, and the mixture is sorted and comminuted again.
Claims13
A method of treating refuse containing stretched plastic, the method comprising the steps of:
- at each of a plurality of collection locations
- a) collecting the refuse;
- b) heating the collected refuse to a relaxation temperature of at least a portion of the stretched plastic to shrink the volume of and embrittle the portion;
- c) comminuting the collected refuse;
- and
- d) collecting the comminuted, partially shrunk, and partially embrittled refuse into a batch;
- thereafter transporting the batches of comminuted, partially shrunk and embrittled refuse to a single treatment location separate from the collection locations;
- at the treatment location
- e) mixing the batches with each other;
- f) comminuting the mixture;
- and
- g) sorting the comminuted batches into separate fractions.
A system for treating refuse containing stretched plastic, the system comprising:
- at each of a plurality of collection locations at which refuse is collected a single apparatus comprising
- means for heating the collected refuse to a relaxation temperature of at least a portion of the stretched plastic to embrittle and shrink the volume of the portion;
- means including a plurality of blades for comminuting the collected and heated refuse;
- and
- means including a holding container for collecting the comminuted, partially shrunk, and partially embrittled refuse into a batch;
- means for transporting the batches of comminuted, partially shrunk and embrittled refuse to a single treatment location separate from the collection locations;
- at the treatment location
- means for mixing the batches with each other;
- means for comminuting the mixture;
- and
- means for sorting the comminuted batches into separate fractions.
Dependencies are inferred from the claim text.