To provide a repair method of a tuyere brick capable of performing repair without re-piling up bricks when a residual thickness of the tuyere brick of the copper furnace reaches a prescribed thickness, and reducing the number of times of re-piling work.
A metallic pipe 9 is inserted from a tuyere 6 of the copper furnace, the furnace is rotated so that the tuyere 6 is positioned at a lower part of the furnace, and then a fireproof kneaded material 10 having a weight ratio of mortar:refractory powder of 1:1 to 3:1 is charged through the metallic pipe 9, thus the fireproof kneaded material 10 is filled in a damaged part of the brick 2, and sintered and solidified. An air supply opening 12 may be formed to supply the cooling air into the metallic pipe 9 for preventing temperature rise and seizing of the metallic pipe 9 before charging the fireproof kneaded material 10.
YAMAMOTO KEISUKE
TSUZUKI KOJI
MORI KAZUHIRO
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