Descaling nozzle
A nozzle orifice of a nozzle includes a tapered segment extending from an elliptical discharge orifice and having a taper angle θ of 30 to 80°, and a large-diameter segment continuing with the tapered segment. The ratio of the inner diameter of large-diameter segment relative to the minor diameter o...
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| Sprache: | eng |
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| Zusammenfassung: | A nozzle orifice of a nozzle includes a tapered segment extending from an elliptical discharge orifice and having a taper angle θ of 30 to 80°, and a large-diameter segment continuing with the tapered segment. The ratio of the inner diameter of large-diameter segment relative to the minor diameter of the discharge orifice 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. |
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