METHOD FOR SEPARATING CHLORINE-CONTAINING PLASTIC FROM WASTE PLASTIC BY CENTRIFUGAL SPECIFIC GRAVITY SEPARATION APPARATUS

PROBLEM TO BE SOLVED: To prevent the lowering of separation efficiency by preventing the internal clogging of a centrifugal specific gravity separation apparatus when chlorine-containing plastic is separated from waste plastics by the apparatus. SOLUTION: Waste plastics 10 are charged in a washing a...

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Bibliographische Detailangaben
Hauptverfasser:	TATEFUKU TERUO, YAMAZAKI SHIGEKI
Format:	Patent
Sprache:	eng
Schlagworte:	ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT FIRELIGHTERS FUELS FUELS NOT OTHERWISE PROVIDED FOR GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS LIQUEFIED PETROLEUM GAS LUBRICANTS MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS MAKING GRANULES OR PREFORMS METALLURGY NATURAL GAS PEAT PERFORMING OPERATIONS PETROLEUM, GAS OR COKE INDUSTRIES PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K TECHNICAL GASES CONTAINING CARBON MONOXIDE TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To prevent the lowering of separation efficiency by preventing the internal clogging of a centrifugal specific gravity separation apparatus when chlorine-containing plastic is separated from waste plastics by the apparatus. SOLUTION: Waste plastics 10 are charged in a washing and mixing tank 2 by a conveyor 1 and washed with water (specific gravity liquid) while stirred and mixed by a stirrer 3. A slurry consisting of waste plastics and water is supplied to a centrifugal specific gravity separation apparatus main body 5 by a slurry supply pump 4 to be separated into a light material 7 useful for reutilization and a heavy material 7 containing chlorine-containing plastics corresponding to specific gravity difference with respect to water. In supplying the slurry to the centrifugal specific gravity separation apparatus main body 5, the flow rate of the supplied slurry is measured by a slurry flowmeter 8 and the speed of the charging conveyor 1 is controlled corresponding to the measured value. By this constitution, the amt. of waste plastic supplied to the centrifugal specific gravity separation apparatus main body 5 is adjusted to a predetermined value.