Apparatus and method for cooling hot rolled steel rod

C - Chemistry – Metallurgy – 21 – D

Patent

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Details

C21D 9/573 (2006.01) C21D 1/613 (2006.01)

Patent

CA 2283825

A laying head forms hot rolled steel rod into a continuous series of rings. The rings are received on a conveyor for transport in an overlapping pattern through at least one cooling zone. The ring density of the overlapping pattern is greater along edge regions of the conveyor as compared to the ring density at a central region of the conveyor. A gaseous coolant is directed upwardly through the overlapping ring pattern, and a screen or other like foraminous element retards the upward flow of gaseous coolant at the central region of the conveyor.

L'invention concerne un tête spiraleuse qui transforme une tige d'acier laminée à chaud en une série continue d'anneaux. Ces cercles sont reçus par un transporteur qui transporte ces anneaux disposés de façon à se chevaucher et les fait passer à travers au moins une zone de refroidissement. La densité d'anneaux disposés de façon à se chevaucher est plus élevée sur les parties périphériques du transporteur qu'au niveau des parties centrales du transporteur. Un fluide réfrigérant gazeux est dirigé vers le haut à travers les anneaux disposés de façon à se chevaucher, et un écran ou autre élément foraminé analogue réduit le flux ascendant de fluide réfrigérant gazeux au niveau de la partie centrale du transporteur.

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