Descaling nozzle

A nozzle orifice of a nozzle ( 1 ) includes a tapered segment ( 16 ) extending from an elliptical discharge orifice ( 15 ) and having a taper angle theta of 30 to 80°, and a large-diameter segment ( 18 ) continuing with the tapered segment. The ratio of the inner diameter of large-diameter segment (...

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Bibliographische Detailangaben
Hauptverfasser:	KARUBE KENTA, NISHIYAMA TAKASHI, ANDACHI KAZUNARI, TANIGAKI AKIHIKO
Format:	Patent
Sprache:	eng
Schlagworte:	APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL ATOMISING APPARATUS FIRE-FIGHTING HUMAN NECESSITIES LIFE-SAVING MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL NOZZLES PERFORMING OPERATIONS PUNCHING METAL ROLLING OF METAL SPRAYING APPARATUS SPRAYING OR ATOMISING IN GENERAL TRANSPORTING
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Beschreibung
Zusammenfassung:	A nozzle orifice of a nozzle ( 1 ) includes a tapered segment ( 16 ) extending from an elliptical discharge orifice ( 15 ) and having a taper angle theta of 30 to 80°, and a large-diameter segment ( 18 ) continuing with the tapered segment. The ratio of the inner diameter of large-diameter segment ( 18 ) relative to the minor diameter of the discharge orifice ( 15 ) is not less than 3 and less than 7. Also, the discharge how from the nozzle spreads in a single direction (width direction) within a plane perpendicular to the central axis of the nozzle and the erosion thickness angle is 1.5 to 3° in the direction (thickness direction), perpendicular to the width direction. Such a descaling nozzle enables that scale is removed efficiently at low pressure and/or low flow rate while restraining the cooling of a steel plate.