MELT-DECOMPOSITION APPARATUS FOR PLASTIC MATERIAL

• Main Author: IBE HIDENORI
• Format: Patent
• Language: English
• Published: 02.09.1997
• Edition: 6
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CARBURETTING AIR OR OTHER GASES; CHEMISTRY; COMPOSITIONS BASED THEREON; CRACKING HYDROCARBON OILS; DISPOSAL OF SOLID WASTE; FUELS; GENERAL PROCESSES OF COMPOUNDING; LUBRICANTS; MAKING GRANULES OR PREFORMS; METALLURGY; MINERAL WAXES; ORGANIC MACROMOLECULAR COMPOUNDS; PEAT; PERFORMING OPERATIONS; PETROLEUM, GAS OR COKE INDUSTRIES; PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION; PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROMSOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; RECLAMATION OF CONTAMINED SOIL SOIL; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; TECHNICAL GASES CONTAINING CARBON MONOXIDE; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; WORKING-UP

PROBLEM TO BE SOLVED: To provide a melt-decomposition apparatus for plastic waste capable of continuously disposing plastic wastes without causing coking. SOLUTION: This melt-decomposition apparatus 1 is provided with a pair of horizontal cylinders 20a, 20b arranged parallel to each other. The outer surfaces of the cylinders 20a, 20b are heated to the melt-decomposition temperature of a plastic material 2 by a thermal medium 4 supplied from a thermal medium heating apparatus to the hollow parts 21 of the cylinders 20a, 20b. The cylinders 20a, 20b are rotated by driving means 24-28 during the above process. A plastic material 2 charged on the cylinders 20a, 20b from a charging port 11 is heated in contact with the cylinders 20a, 20b and successively melted and decomposed without causing coking phenomenon. The residue 3 of the plastic material 2 is discharged from a discharging port 12.