GAS SEAL FOR CONTINUOUS THERMAL TREATMENT FACILITIES OPERATED WITH A PROTECTIVE GAS ATMOSPHERE

The invention relates to an aerodynamic seal in which two separate slit nozzles (13, 14; 15, 16) are assigned to each side of the metal strip (3) which is fed into the facility. Said slit nozzles are arranged successively at a distance from one another in the direction of passage of the metal band (...

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Bibliographische Detailangaben
1. Verfasser:	SOMMEREISEN, WINFRIED
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BLASTING CHEMISTRY CYLINDERS DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE ENGINEERING ELEMENTS AND UNITS FURNACES FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING KILNS LIGHTING MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS MECHANICAL ENGINEERING METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS OPEN SINTERING OR LIKE APPARATUS OVENS PISTONS RETORTS SEALINGS THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	The invention relates to an aerodynamic seal in which two separate slit nozzles (13, 14; 15, 16) are assigned to each side of the metal strip (3) which is fed into the facility. Said slit nozzles are arranged successively at a distance from one another in the direction of passage of the metal band (3) and generate a gas jet which impinges the metal band (3) in a perpendicular direction. They can also be arranged so that they face away from one another and impinge the metal band (3) at an angle. The slit nozzles (14, 16) facing the protective gas atmosphere are supplied with air and the slit nozzles (13, 15) facing the continuous thermal treatment facility are supplied with protective gas. The seals are suitable for continuous thermal treatment facilities and other facilities in which two gas zones should be sealed from one another by means other than a mechanical seal.