发明名称 HOCHOFENBLASFORM.
摘要 A tuyere for a blast furnace comprises a water-cooled tuyere (1) and a burner (2), fitted inside the water-cooled tuyere. The burner is composed of an inner pipe (3), an intermediate pipe (4) and an outer pipe (5) which form almost a common center axis of a concentric circle. The inside of the inner pipe (3) is used for a pulverized coal path (6), an oxygen feed path (7) being in between the inner pipe (3) and the intermediate pipe (4) and a flame temperature control gas feed path (8) in between the intermediate pipe (4) and the outer pipe (5). The burner is equipped with a water-cooled jacket (9) outside the top end of the burner.
申请公布号 DE3865211(D1) 申请公布日期 1991.11.07
申请号 DE19883865211 申请日期 1988.01.08
申请人 NIPPON KOKAN K.K., TOKIO/TOKYO, JP 发明人 HOTTA, HIROHISA PATENT & LICENSE QUAL. STA;OONO, YOTARO PATENT & LICENSE QUAL. STAND;MATSUURA, MASAHIRO PATENT&LICENSE QUAL.STAND., CHIYODA-KU TOKYO, JP
分类号 C21B5/00;C21B7/16;F23D1/00 主分类号 C21B5/00
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