VACUUM DEGASSING PLANT AND PROCESS FOR THE INERTISATION OF PYROPHORIC POWDERS

The invention relates to a vacuum degassing plant including a tank; and connected by a first conduit thereto a filter; and at least one vacuum pump for placing the plant under vacuum and creating a gas stream from the tank to the filter. The plant further includes a dispenser suitable for being fed...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KOBLENZER, Harald, GANDIN, Franco, TERLICHER, Stefano, PRIMAVERA, Alessandra
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CHEMISTRY METALLURGY METALLURGY OF IRON PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL SEPARATION TRANSPORTING TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
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Beschreibung
Zusammenfassung:	The invention relates to a vacuum degassing plant including a tank; and connected by a first conduit thereto a filter; and at least one vacuum pump for placing the plant under vacuum and creating a gas stream from the tank to the filter. The plant further includes a dispenser suitable for being fed with powders previously separated by the filter, wherein an outlet of the dispenser is connected to said first conduit. An inlet of the dispenser may be connected by means of a second conduit to a container collecting powders of said filter for feeding the dispenser with these powders. The invention also concerns a process wherein cold inert powders are added to the gases removed from the tank prior to their filtration which derive at least partially from powders separated by the filtration.