METHOD AND APPARATUS FOR RECLAIMING EMPTY CAN OF ALUMINUM

Title:

METHOD AND APPARATUS FOR RECLAIMING EMPTY CAN OF ALUMINUM

Document Type and Number:

WIPO Patent Application WO/1997/023309

Kind Code:

A1

Abstract:

A method and an apparatus which can substantially completely remove paint and pigment on the surface of an empty can of aluminum to reclaim aluminum having a very low impurity content. The method comprises crushing pressed blocks of aluminum cans into aluminum chips (a) by crushing means (1, 2, 3), removing foreign materials contained in an aggregate of the chips (a), heating the aggregate of the chips (a) after removal of the foreign materials at a temperature below the melting point of the aggregate to burn combustible foreign materials, and agitating the residue in a paint removing apparatus (20a) by utilizing a rotor (36) which is rotated at a high speed, thereby removing the paint and/or pigment present on the chips (a) by taking advantage of frictional force and adhesion created by velocity difference. The aluminum chips (a) freed of the paint and pigment are fed into a compression molding machine (40) and again molded into an aluminum molding (b).

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Inventors:

SAKAMOTO EIICHI
TERADA OSAMU
ARIKATA KAZUYOSHI

Application Number:

PCT/JP1995/002664

Publication Date:

July 03, 1997

Filing Date:

December 25, 1995

Export Citation:

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Assignee:

NIPPON CHUZO KABUSHIKI KAISHA (JP)

International Classes:

B03B9/06; B09B3/00; C22B7/00; C22B21/00; F23G7/00; (IPC1-7): B09B5/00; C22B7/00

Foreign References:

JPH07118765A	1995-05-09
JPH0813050A	1996-01-16
JPH0849023A	1996-02-20

Other References: