Unit and method for the treatment of shredder residues
AssigneeVolkswagen Aktiengesellschaft
InventorsDaniel Goldmann, Bram den Dunnen, Michael Knust
Life of this patent
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Abstract
In a method for sorting shredder residues of metal-containing wastes, e.g., vehicle bodies, the shredder residues are separated into a shredder light fraction and a non-ferromagnetic fraction (shredder heavy fraction). A system is arranged for sorting shredder residues of metal-containing wastes, e.g., vehicle bodies. At least parts of the primary material streams produced during the sorting of the shredder light fraction and the shredder heavy fraction in preliminary processes are fed to a common, main process for final processing, at least a ferromagnetic fraction, a fraction containing non-ferromagnetic metals, a granulate fraction, a fiber fraction, and a sand fraction being produced as end products.
Claims24
A method for treating shredder residues of metal-containing waste, comprising:
- separating the shredder residues into a shredder light fraction and a non-ferromagnetic fraction;
- separating each of the shredder light fraction and the non-ferromagnetic fraction into additional material streams in separate preliminary processes;
- and
- feeding at least a part of one of the material streams of a first one of the preliminary processes and at least a part of the material stream of a second one of the preliminary processes to a joint main process for further processing;
- wherein the first one of the preliminary processes includes:
- breaking down the shredder light fraction in a first shredding unit;
- and
- subsequently separating the shredder light fraction into at least an iron-containing fraction and a non-ferromagnetic fraction by at least one magnetic separator.
A method for treating shredder residues of metal-containing waste, comprising:
- separating the shredder residues into a shredder light fraction and a non-ferromagnetic fraction;
- separating each of the shredder light fraction and the non-ferromagnetic fraction into additional material streams in separate preliminary processes;
- and
- feeding at least a part of one of the material streams of a first one of the preliminary processes and at least a part of the material stream of a second one of the preliminary processes to a joint main process for further processing;
- wherein the preliminary process includes separating the non-ferromagnetic fraction into at least two of an enriched fraction including nonferrous metals, a heavy-material fraction and a fine-grained sand fraction depleted in metals.
A method for treating shredder residues of metal-containing waste, comprising:
- separating the shredder residues into a shredder light fraction and a non-ferromagnetic fraction;
- separating each of the shredder light fraction and the non-ferromagnetic fraction into additional material streams in separate preliminary processes;
- and
- feeding at least a part of one of the material streams of a first one of the preliminary processes and at least a part of the material stream of a second one of the preliminary processes to a joint main process for further processing;
- wherein the preliminary process includes separating the non-ferromagnetic fraction into an enriched fraction including nonferrous metals, a heavy-material fraction and a fine-grained sand fraction depleted in metals.
A method for treating shredder residues of metal-containing waste, comprising:
- separating the shredder residues into a shredder light fraction and a non-ferromagnetic fraction;
- separating each of the shredder light fraction and the non-ferromagnetic fraction into additional material streams in separate preliminary processes;
- and
- feeding at least a part of one of the material streams of a first one of the preliminary processes and at least a part of the material stream of a second one of the preliminary processes to a joint main process for further processing;
- wherein the main process includes bringing together material streams from the preliminary processes so that sand fractions are combined to form a common sand fraction and so that heavy-material fractions are combined to form a common heavy-material fraction.
Dependencies are inferred from the claim text.