METHOD FOR FRACTIONATING SHREDDER DUST AND DEVICE THEREFOR

• Main Authors: MIYATA NORIMASA, NITTA SHOICHIRO, MASAOKA TOSHIKA, KAJIWARA TAKUJI, IMAHASHI KUNIHIKO
• Format: Patent
• Language: English
• Published: 08.04.1997
• Edition: 6
• Subjects: DISPOSAL OF SOLID WASTE; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROMSOLID MATERIALS OR FLUIDS; OTHER SEPARATING BY DRY METHODS APPLICABLE TO BULK MATERIAL,e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL; PERFORMING OPERATIONS; RECLAMATION OF CONTAMINED SOIL SOIL; SEPARATING SOLIDS FROM SOLIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS; SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS; SEPERATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, ORSIFTING OR BY USING GAS CURRENTS; SORTING; TRANSPORTING

PROBLEM TO BE SOLVED: To carry out the automatic fractionation with good fractionating accuracy by fractionating and removing magnetic dust out of shredder dust, fractionating screen penetrable dust from impenetrable dust, performing a spe cific gravity fractionation, crushing light dust, and performing a specific gravity fractionation of the dust containing wire harness successively in this order. SOLUTION: Shredder dust 1 is fractionated into three groups, namely magnetic matters, non-magnetic matters and non-ferrous metals such as Cu and others in an eddy current fractionaing process 2. Non-magnetic dust is screened into the given sizes by a screen 3, and the dust containing glass is transferred to a rotating screen 4. The dust containing impenetrable wire harness is passed through a specific gravity fractionating process 8, a crushing process 9, a vibration screening process 10 and a specific gravity fractionation process 11 and fractionated into copper wires 12, rubber and the like. The dust containing glass is processed by the rotating screen 4, a sliding way fractionator 5 and a penetrating type fractionator 6 and fractionated into glass 7, rubber, resin and the like.