Copper anode furnace and a method for operating the same

Details Copper anode furnace and a method for operating the same Copper anode furnace and a method for operating the same

C - Chemistry, Metallurgy

22

B

C22B 15/14 (2006.01) B22D 41/22 (2006.01) C22B 9/00 (2006.01) F27B 7/10 (2006.01) F27B 7/20 (2006.01) F27B 7/33 (2006.01)

Patent

CA 2736140

A copper anode furnace comprises a furnace drum (2), which can be pivoted about a horizontal axis and in which copper melt is refined into anode copper by means of fire refining. Said furnace drum (2) is provided with a spout (10) for pouring out the refined copper. A sliding closure (20) is arranged on the spout (10) of the furnace drum (2). Said sliding closure comprises at least one stationary, fireproof closing plate (21) and a fireproof sliding plate (22) which can be displaced relative to said closing plate. Through the displacement of the sliding plate (22), the outflow out the furnace drum (2) can be regulated or closed and therefore the outflow amount of the copper can be controlled. A drawing of slag into the casting, which reduces the anode quality, can be prevented using said sliding closure (20).

L'invention concerne un four à anodes de cuivre présentant un tambour (2) qui peut tourner autour d'un axe horizontal et dans lequel du cuivre fondu est purifié par affinage à la flamme pour produire du cuivre anodique. Ce tambour (2) est pourvu d'une busette de coulée (10) par laquelle le cuivre purifié peut s'écouler. Un système d'obturation coulissant (20) est placé sur la busette de coulée (10) du tambour (2), ce système comprenant au moins une plaque d'obturation (21) réfractaire fixe et une plaque coulissante (22) réfractaire pouvant être déplacée par rapport à la plaque d'obturation (21). Par déplacement de la plaque coulissante (22), il est possible d'étrangler ou de bloquer l'écoulement en provenance du tambour (2) et de réguler ainsi la quantité de cuivre qui s'écoule. Ce système d'obturation coulissant (20) permet d'empêcher que le produit coulé ne contienne des scories affectant la qualité des anodes.

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