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US 7,786,401 B2Granted
Method and system for recovering metal from processed recycled materials
OwnerThomas A. Valerioinventor
Life of this patent
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Abstract
Recovering metallic materials, such as copper, from waste materials. The A dynamic sensor measures the rate of change of current generated by metallic materials in the waste materials. Preprocessing and post processing of the waste materials may be completed to further concentrate the amount the metallic materials recovered from the waste.
Claims6
A method for recovering metal material from a waste material stream comprising the steps of:
- a) processing the waste material stream using a dynamic sensor system, where the dynamic sensor system measures the rate of change of a current generated as a result of a metallic object moving past the dynamic sensor and generates an indication that the dynamic sensor senses the metallic objects in the waste material stream based on the measured rate of change of the current;
- b) separating, in response to the indication that the dynamic sensor senses the metallic objects in the waste material stream, a metallic fraction of the waste material stream, the metallic fraction comprising the metallic objects identified by the dynamic sensor;
- and
- c) processing the metallic fraction of the waste stream with a first air separator to concentrate the metal content of the metallic fraction of the waste stream in a heavy fraction.
1 more element
Dependencies are inferred from the claim text.