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1. 发明专利

JP2000322960A WET TYPE SPECIFIC GRAVITY DIFFERENCE CLASSIFYING DEVICE OF WIRE COATING WASTE 失效
公开(公告)号：JP2000322960A
公开(公告)日：2000-11-24
申请号：JP12793999
申请日：1999-05-10
申请人： DENSEN SOGO GIJUTSU CT
发明人： UEMATSU TADAYUKI , NISHIMURA NAOHARU
IPC分类号： B09B5/00 , B03B5/04 , H01B15/00
摘要： PROBLEM TO BE SOLVED: To provide a removing method of copper from a wire coating waste capable of effectively removing the copper from the waste in order to reuse the wire coating waste of a small-sized wire that has already been used. SOLUTION: In relation to this wet type specific gravity difference classifying device wherein a crushed plastic covered wire waste is fed to a tilted water tank 5 along with water, copper is moved to the upstream side by vibrating the water tank 5, and a plastic waste is separated by moving it to the downstream side. The wet type specific gravity difference classifying device of a wire coating waste is composed by installing a tilting and vibrating auxiliary water tank 21 on the downstream side of the water tank 5 along the water tank 5, and the lower side face part of the water tank 5 is connected to the auxiliary water tank 21 through a coupling tube; copper is removed from the wire covering waste as much as possible, and plastics are classified into their types to reuse them.

2. 发明专利

JP2000317340A WET SPECIFIC GRAVITY DIFFERENCE SEPARATOR FOR ELECTRIC WIRE COVERING WASTE 失效
公开(公告)号：JP2000317340A
公开(公告)日：2000-11-21
申请号：JP12793899
申请日：1999-05-10
申请人： DENSEN SOGO GIJUTSU CT
发明人： UEMATSU TADAYUKI , NISHIMURA NAOHARU
IPC分类号： B09B5/00 , B03B5/02 , B03B5/62 , B29B17/00 , H01B15/00
摘要： PROBLEM TO BE SOLVED: To separate the covering waste of discharged electric wire by each kind of covering materials and simultaneously remove copper from the covering waste to the utmost by providing up and down at least two outlets for plastic waste on a downstream side of a water tank in an apparatus wherein copper and plastic waste are separated up and down by vibrating the water tank. SOLUTION: In order to treat by separation a discharged electric wire nugget treated material, a covering waste piece pulverized by nugget treatment is charged into a hopper 1, allowed to drop each specific amount by each specific amount into a feeder 3, and allowed to become familiar with water. Thereafter, the covering waste piece is dropped into a water tank 5. Then, heavy copper in the material to be separated in the water tank 5 is transferred to an upstream side, and light plastics are transferred to a downstream side by a pressure of water jetted toward an inclination upper side of the water tank 5 and vibration of the water tank 5, and those are separated up and down. Thereafter the plastics are separated by a specific gravity difference. Light one floating up is discharged from an upper side outlet 14, the one positioning midway is charged for a middle outlet 15, and the one sinking down is discharged from a downward outlet 16.

3. 发明专利

JP2000279927A METHOD OF REMOVING COPPER FROM WASTE INSULATED WIRE 失效
公开(公告)号：JP2000279927A
公开(公告)日：2000-10-10
申请号：JP8808599
申请日：1999-03-30
申请人： DENSEN SOGO GIJUTSU CT
发明人： UEMATSU TADAYUKI , NISHIMURA NAOHARU
IPC分类号： B09B3/00 , B03B7/00 , B09B5/00 , H01B15/00 , H02G1/12
摘要： PROBLEM TO BE SOLVED: To provide a method of removing copper from waste insulated wire in which copper is efficiently removed from the waste material for the purpose of reusing the waste insulated wire of small size which has finished its use. SOLUTION: In this method of removing copper from waste insulated wire, waste wire covered with plastic is pulverized and separated into copper and cover plastic waste by the difference of specific gravity, and from the separated insulation waste, that of pulverized pieces of 3 mm or less is separated by a classifier, and from the pulverized pieces of 3 mm or less, copper is separated by wet specific gravity differential classification by water, and the copper content in the waste insulated wire can be reduced to such an extent that the material with the reduced copper content can be reused.

4. 发明专利

JP2000285756A DECHLORINATION METHOD OF COATING WASTE OF VINYL CHLORIDE COATED WIRE 失效
公开(公告)号：JP2000285756A
公开(公告)日：2000-10-13
申请号：JP8808499
申请日：1999-03-30
申请人： DENSEN SOGO GIJUTSU CT
发明人： UEMATSU TADAYUKI , FUKUSHIMA MASATADA
IPC分类号： B09B3/00 , C08J11/08 , C08J11/12 , C10L5/48 , H01B15/00
摘要： PROBLEM TO BE SOLVED: To recycle a vinyl chloride coated wire waste as fuel by removing calcium and lead as sediment from a solution of the vinyl chloride coating wire waste dissolved in a solvent by centrifugal separation, and heating the vinyl chloride resin component separated from the solvent by distillation of the solution in a thermal decomposing furnace of a specified temperature to remove chlorine. SOLUTION: The coating waste of a vinyl chloride coated wire is dissolved in a 10 times the quantity of THF, calcium and lead are settled by use of a centrifuge, and the solvent of the supernatant after removing the sediment is made to evaporate. The resulting solid containing 0.5% or less of calcium and 0.1% or less of lead (vinyl chloride resin component) is pulverized and put into a rotary kiln type thermal decomposing furnace A, using a ceramic ball 2 through a hopper 1. The solid is thermally decomposed in the thermal decomposing furnace A at 300-450 deg.C for 90 minutes, hydrochloric acid is recovered in a recovery tank 4 by the use of the water of an injection tank 3 and a cooler 5, and a carbon component having low chlorine quantity of 1% is recovered in a receiving tray 6 as fuel. According to this, waste can be efficiently disposed of.

5. 发明专利

JP2000169625A RECOVERY SYSTEM FOR POLYVINYL CHLORIDE 失效
公开(公告)号：JP2000169625A
公开(公告)日：2000-06-20
申请号：JP36848398
申请日：1998-12-08
申请人： TORAY ENG CO LTD , DENSEN SOGO GIJUTSU CT
发明人： UEMATSU TADAYUKI , KONDO MASAAKI , FUKUSHIMA MASATADA , YOSHII TOMOHIKO , MATSUKI YOSHIYUKI
IPC分类号： C08J11/20 , C08L27/06
摘要： PROBLEM TO BE SOLVED: To provide a recovery system for polyvinyl chloride included in waste materials wherein the recovered polyvinyl chloride keeps preferable properties for reuse. SOLUTION: This recovery system is obtained by including following steps; polyvinyl chloride included in waste materials is dissolved in a dissolver 1 with a given solvent, the resultant solution is fed to a first solid-liquid separator 8 where insoluble bulky-solids are separated, then the resultant first filtrate therefrom is fed through a intermediate storage tank 11 to a second solid-liquid separator 13 where insoluble micro-solids in the first filtrate are centrifuged and then the second filtrate is fed to an evaporator dryer 15 so as to recover and pool in a tank 18. The solvent vapor exhausted from the evaporation dryer 15 is cooled in a heat exchanger 20 and so the solvent is recovered and pooled in a tank 22.

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