Removing steel particles from thermally disintegrated old tyres - using sand blasting and reducing sand carry-over by concentrating particles magnetically in fluidised bed

Steel particles are removed from rubber derived from old tyres disintegrated thermally with the aid of sand blasting by fluidising the sand layer contg. the particles with an auxiliary medium and concentrating the particles magnetically before their removal. Appts. includes a reactor (4) in which th...

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Hauptverfasser:	RECHMEIER,HELMUTH, WEFING,HEINRICH, NOACK,ROLF,DR, KOENIG,CHRISTIAN,DR, GRAMELT,STEFAN
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	CARBURETTING AIR OR OTHER GASES CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT DESTRUCTIVE DISTILLATION OF CARBONAGEOUS MATERIALS FORPRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS FUELS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES LUBRICANTS MAKING GRANULES OR PREFORMS METALLURGY PEAT PERFORMING OPERATIONS PETROLEUM, GAS OR COKE INDUSTRIES PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROMSOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS 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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Zusammenfassung:	Steel particles are removed from rubber derived from old tyres disintegrated thermally with the aid of sand blasting by fluidising the sand layer contg. the particles with an auxiliary medium and concentrating the particles magnetically before their removal. Appts. includes a reactor (4) in which the waste rubber is thermally disintegrated with the aid of a sand blasting process. Reactor has a vertically downwardly directed discharge tube (13) terminating above a discharge tray (14) subjected to vibrations. Fluidisation is effected by nozzles (15,18) disposed above respective annular magnets (16,19). Magnets are arranged about the tube (13) with radial clearance for forced cooling. Magnets serve for concn. of the steel particles. Least possible amt. of sand particles is carried over with the removed steel particles.