B - Operations – Transporting – 21 – D
Patent
B - Operations, Transporting
21
D
B21D 51/16 (2006.01) B01D 1/00 (2006.01) C08J 3/00 (2006.01)
Patent
CA 2543595
A method is provided for perforating a steel plate, forming a devolatilizer nozzle from the steel plate, and heat treating the devolatilizer nozzle. The devolatilizer nozzle may have a yield strength of at least about 110 ksi, and a tensile strength of at least about 140 ksi. The perforations in the steel plate are holes in the nozzle and may be no more than about 0.05 inches in diameter. The thickness of the steel plate may be from about 0 to about 0.75 inches. The nozzle may include at least about 500,000 perforations where the center-to-center hole distance may be at least about 0.08 inches. The capacity of the devolatilizer nozzle may be from about 0 to about 75,000 pounds per hour.
L'invention concerne un procédé permettant de perforer une plaque d'acier, à former une buse d'un appareil d'extraction de matières volatiles et d'effectuer un traitement thermique de la buse de l'appareil d'extraction de matières volatiles. La buse de l'appareil d'extraction de matières volatiles possède une limite d'élasticité d'au moins 110 ksi environ, et une résistance à la traction d'au moins 140 ksi environ. Les perforations effectuées dans la plaque d'acier consistent en des orifices dans la buse et ne dépassent pas 0,05 pouces environ de diamètre. L'épaisseur de la plaque d'acier est comprise entre 0 et 0,75 pouces environ. La buse peut comprendre au moins 500 000 perforations, la distance d'orifice de centre à centre étant d'au moins 0,08 pouces environ. La capacité de la buse de l'appareil d'extraction de matières volatiles est comprise entre 0 et 75000 livres par heure environ.
Corleto Carlos R.
Sosa Jose M.
Fina Technology Inc.
Gowling Lafleur Henderson Llp
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