Metal recovery system and method
AssigneeBest Process Solutions, Inc.
InventorTimothy F. Conway
Life of this patent
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Abstract
A method and apparatus to reclaim metals from scrap material such as automobile shredder residue (ASR) that, after separating out light density components, separates out friable material such as rock and glass by crushing and screening operations to generate a high metal content product.
Claims4
A method of reclaiming metal from automobile shredder residue (ASR) material or incinerator bottom ash material containing friable parts and ductile parts comprising providing in a processing path a vibratory rod mill having an elongated housing extending horizontally and elongated metal rods in the elongated housing aligned with a longitudinal axis of the elongated housing, providing a housing inlet adjacent one end of the elongated housing and a housing outlet adjacent an opposite end of the elongated housing and a motor for vibrating the housing torsionally around an axis parallel with the housing axis, feeding the material into the inlet, operating the vibratory rod mill with the motor to crush the friable parts of the material by contact with the rods into particles of a predetermined size of 2 mm or less, providing a screen with openings corresponding to said predetermined size, directing material received from the outlet of the elongated housing of the vibratory rod mill to said screen separating particles of said predetermined size of 2 mm or less from remaining parts of the material received from the vibratory rod mill housing outlet with said screen to form on said screen a concentrated metal content remainder.
Dependencies are inferred from the claim text.