System and method for recovering desired materials using a pan mill
OwnerThomas A Valerioinventor
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Abstract
A method for recovering metals from waste, in which the material is screened to isolate nonfibrous feedstock. This nonfibrous feedstock is then crushed using a pan mill to further separate it, resulting in a mixture consisting of a metal fraction and a non-metal residue. The metal fraction can then be collected. Additionally, a system employing this method is utilized to treat such materials efficiently.
Claims21
A process for separating ferrous and non-ferrous materials from a waste stream, the waste stream comprising automobile shredder residue (ASR);
- the process comprising combining the ASR with water and processing the ASR in a wet pan mill.
A method for recovering metals from a metal-based waste, comprising:
- separating fibrous materials from the metal-based waste to leave a non-fibrous feedstock;
- combining the feedstock with water;
- processing the feedstock in a wet pan mill to crush hard components and flatten malleable metals;
- and collecting the metal fraction and the residue.
A system comprising a source of ASR and water, a wet pan mill to separate metals from the ASR, and a collector for collecting the separated metals.
A method of recovering metals from automobile shredder residue (ASR) or incinerator bottom ash comprising:
- separating the ASR or incinerator bottom ash into different particle size groups;
- combining the ASR or incinerator bottom ash with water;
- concentrating the ASR or incinerator bottom ash by gravity separation;
- conveying the ASR or incinerator bottom ash to a wet pan mill for crushing and metal separation;
- screening the ASR or incinerator bottom ash at a predetermined size;
- dewatering the ASR or incinerator bottom ash;
- and collecting metals from the ASR or incinerator bottom ash.
A method of recovering metals from a metal-containing waste stream selected from automobile shredder residue (ASR), electronic waste, and incinerator ash, the method comprising:
- (a) screening the waste stream to separate particles by size into at least a light fraction and a heavy fraction;
- (b) feeding a portion of the screened material together with a liquid to form a slurry;
- (c) processing the slurry in a wet pan mill that mills and mixes the material to crush hard parts and flatten malleable metals;
- (d) post-mill screening to remove oversize and flattened metals;
- (e) separating remaining material by at least one of gravity separation and magnetic separation to divide heavier from lighter materials and to remove ferrous from non-ferrous metals;
- and (f) dewatering and collecting the metals.
Dependencies are inferred from the claim text.