Method for recovering PVC and urethane foam from commingled trim waste using elutriators
A method and apparatus for reclaiming urethane foam and polyvinyl chloride plastic material from composite plastic articles (18). The articles pass through a granulator (23) and pass through a first elutriator (36) where two streams of particles are formed. A denser stream passes to a second elutria...
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Main Authors | , |
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Format | Patent |
Language | English |
Published |
05.05.1994
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Edition | 5 |
Subjects | |
Online Access | Get full text |
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Abstract | A method and apparatus for reclaiming urethane foam and polyvinyl chloride plastic material from composite plastic articles (18). The articles pass through a granulator (23) and pass through a first elutriator (36) where two streams of particles are formed. A denser stream passes to a second elutriator (50) where at its exit (56) substantially pure polyvinyl chloride particles are passed into bin (58). A less dense stream of particles pass to a screen separator (64) where intermediately sized particles are sorted onto conveyor (74) which passes substantially pure urethane foam to baler (76). |
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AbstractList | A method and apparatus for reclaiming urethane foam and polyvinyl chloride plastic material from composite plastic articles (18). The articles pass through a granulator (23) and pass through a first elutriator (36) where two streams of particles are formed. A denser stream passes to a second elutriator (50) where at its exit (56) substantially pure polyvinyl chloride particles are passed into bin (58). A less dense stream of particles pass to a screen separator (64) where intermediately sized particles are sorted onto conveyor (74) which passes substantially pure urethane foam to baler (76). |
Author | PHILIP L BELLIVEAU SAMUEL W POLLARD |
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Snippet | A method and apparatus for reclaiming urethane foam and polyvinyl chloride plastic material from composite plastic articles (18). The articles pass through a... |
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SubjectTerms | AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL ORCHEMICAL PROCESSES CHEMISTRY COMPOSITIONS BASED THEREON DISPOSAL OF SOLID WASTE GENERAL PROCESSES OF COMPOUNDING INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS MAKING GRANULES OR PREFORMS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS OTHER SEPARATING BY DRY METHODS APPLICABLE TO BULK MATERIAL,e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL PERFORMING OPERATIONS PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED RECLAMATION OF CONTAMINED SOIL SOIL RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS 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 THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING-UP |
Title | Method for recovering PVC and urethane foam from commingled trim waste using elutriators |
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