METHOD AND DEVICE FOR THE RECYCLING OF RAW MATERIALS FROM WASTES AND RESIDUAL SUBSTANCES

The method and the device are used for the recycling, in particular of heavy metals such as chromium. By the method from the wastes and residues liquid or viscous initial mixture and/or initial mixture of crushed or ground basic ingredient is prepared. The raw materials are separated by chemical and...

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Bibliographische Detailangaben
Hauptverfasser:	KASZAS-SAVOS, MELANIA, KASZAS, TIBERIU
Format:	Patent
Sprache:	bul ; eng
Schlagworte:	BLASTING CHEMISTRY COMBUSTION APPARATUS COMBUSTION PROCESSES CONSUMING WASTE PRODUCTS BY COMBUSTION CREMATION FURNACES DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE DISPOSAL OF SOLID WASTE FERROUS OR NON-FERROUS ALLOYS FURNACES HEATING KILNS LIGHTING MECHANICAL ENGINEERING METALLURGY OVENS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS RECLAMATION OF CONTAMINED SOIL SOIL RETORTS SEPARATION TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS WEAPONS
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Beschreibung
Zusammenfassung:	The method and the device are used for the recycling, in particular of heavy metals such as chromium. By the method from the wastes and residues liquid or viscous initial mixture and/or initial mixture of crushed or ground basic ingredient is prepared. The raw materials are separated by chemical and heat treatment and depending of the composition of the mixture additional substances are initially introduced after which it is subjected to heat treatment in a furnace. The furnace atmosphere runs around the initial mixture and the forming suspended substance in the form of flakes or powder is transported outside the furnace across a multistage filter installation where exhaust gases are separated. The first filter is made in the form of a hot filter after which the exhaust gases are cooled and after passing through at least one filter they are reheated before they burn at elevated temperatures. 13 claims