C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
C22B 9/10 (2006.01) F27D 3/18 (2006.01) F27D 3/16 (2006.01)
Patent
CA 2073707
A method of injecting powdered material into converters or other metallurgical vessels equipped with at least one submerged tuyere and a gas flow line interconnecting the tuyere to a bustle pipe or other source for blowing converting gas into the tuyere comprises providing an injection pipe fitted into the tuyere at an acute angle, preferably about 20°C, with respect to the centre line of the tuyere and intersecting the tuyere at a point downstream of the gas line flow line entrance, and introducing fluidized powdered material into the tuyere through such injection pipe.
Méthode pour injecter des matières pulvérulentes dans des convertisseurs ou d'autres récipients utilisés en métallurgie équipés d'au moins une tuyère submergée et d'une conduite d'amenée de gaz reliant la tuyère à une conduite circulaire ou à une autre source servant à alimenter la tuyère en gaz de conversion; un tuyau d'injection monté à l'intérieur de la tuyère définit un angle aigu d'environ 20 degrés par rapport à la ligne médiane de la tuyère, en aval du point d'entrée de la conduite d'amenée du gaz; ce tuyau d'injection sert à l'introduction des matières pulvérulentes dans la tuyère.
Lemay Raymond
Vos Robert A.
Goudreau Gage Dubuc
Noranda Inc.
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