US 9,808,863 B2
Tube exchange device for holding and replacing a pouring nozzle, and assembly of a tube exchange device and a pouring nozzle
Vincent Boisdequin, Naast (BE); Mariano Collura, Bracquegnies (BE); and Fabrice Sibiet, Colleret (FR)
Assigned to VESUVIUS CRUCIBLE COMPANY, Wilmington, DE (US)
Filed by VESUVIUS CRUCIBLE COMPANY, Wilmington, DE (US)
Filed on Nov. 17, 2015, as Appl. No. 14/943,761.
Application 14/943,761 is a division of application No. 13/635,788, granted, now 9,221,098, previously published as PCT/EP2011/001326, filed on Mar. 17, 2011.
Claims priority of application No. 10157126 (EP), filed on Mar. 19, 2010.
Prior Publication US 2016/0067775 A1, Mar. 10, 2016
Int. Cl. B22D 41/00 (2006.01); B22D 41/56 (2006.01); B22D 41/34 (2006.01); B22D 41/40 (2006.01); B22D 41/50 (2006.01)
CPC B22D 41/56 (2013.01) [B22D 41/34 (2013.01); B22D 41/40 (2013.01); B22D 41/50 (2013.01); Y10T 29/53 (2015.01)] 9 Claims
OG exemplary drawing
 
1. Tube exchange device for holding and replacing an exchangeable pouring nozzle for casting molten metal out of a vessel, said tube exchange device comprising a frame with a casting opening, said frame disposed for being fixed to the lower side of a metal casting vessel and comprising a first, upper portion and a second, lower portion, joining at a middle section plane defining the plane where an inner nozzle having a through bore and an exchangeable pouring nozzle form a sliding contact, the upper portion of the frame comprising:
(a) a clamping assembly configured for receiving and clamping in place at its pouring position a bearing surface of an inner nozzle against a support portion of the upper portion of the frame, such that the through bore of the inner nozzle is in fluid communication with the casting opening, and the lower portion of the frame comprising,
(b) a passage extending along a first axis of first direction (X) between an inlet opening and an outlet opening disposed for receiving and moving an exchangeable pouring nozzle from said inlet to said outlet, passing by a casting position in registry with the casting opening of the frame,
(c) a displacing element and a guiding element disposed for displacing and guiding said exchangeable pouring nozzle from a standby position to a casting position in registry with the casting opening of the frame, said guiding element running substantially parallel to the first direction (X),
(d) a pressing element aligned with the guiding element and extending substantially parallel to the first direction (X) at the level of the pouring nozzle casting position for pressing up said exchangeable pouring nozzle at its casting position in the direction of the upper portion of the frame,
wherein the clamping assembly comprises three clamping elements, wherein the respective centroids of the orthogonal projections onto the middle section plane of the clamping elements in their clamped position form the vertices of a triangle.