C - Chemistry – Metallurgy – 21 – B
Patent
C - Chemistry, Metallurgy
21
B
C21B 13/00 (2006.01)
Patent
CA 2211021
In order to attain as low a final temperature as possible after as short a period of time as possible in a method of cooling hot briquetted sponge iron (3) under optimum utilization of the cooling medium, the hot briquetted sponge iron (3), in a first cooling step (11), is passed exclusively by a gaseous cooling medium while being gently cooled and subsequently, in a second cooling step (14), is sprayed with a liquid curling medium, thus being intensively cooled to the final temperature desired (Fig. 1).
L'invention concerne un procédé de refroidissement de fer spongieux (3) chaud briqueté, selon lequel on parvient à une température finale aussi basse que possible au bout d'une période aussi courte que possible, en utilisant optimalement le réfrigérant. A cet effet, dans une première étape de refroidissement (11), le fer spongieux (3) chaud briqueté est uniquement traversé par un milieu de refroidissement gazeux et est simultanément refroidi modérément. Dans une seconde étape de refroidissement (14), un milieu de refroidissement liquide est pulvérisé sur le fer spongieux (3) chaud briqueté qui est refroidi de manière intensive jusqu'à obtention de la température finale.
Cip Gerhard
Himmel Anton
Kepplinger Leopold Werner
Sachsenhofer Roland
Whipp Roy Hubert Jr.
Brifer International Ltd.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
Voest-Alpine Industrieanlagenbau Gmbh
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