公开(公告)号：US3559975A

公开(公告)日：1971-02-02

申请号：US3559975D

申请日：1968-12-02

申请人： BISCHOFF GOTTFRIED ,  WAAGNER BIRO AG

发明人： BAUMANN KARL-FRIEDRICH ,  HOFF HANS ,  BRAUMULLER KURT

IPC分类号： C21C5/38 ,  C21C5/42

CPC分类号： C21C5/38

摘要： A gas-collecting hood is arranged over the circular outlet or mouth of a top-blown steel-making converter. This hood comprises a cylindrical tube or duct with a smaller diameter than the mouth coaxial therewith. The tube is fitted with an outer trough which opens downwardly and sustains a crown vortex feeding back into the main stream. This trough has an outer wall or apron whose diameter is greater than that of the mouth and whose lower periphery is positioned below the bottom end of the tube, while being spaced above the converter.

摘要翻译： 集气罩设置在顶吹炼钢转炉的圆形出口或口上。 该罩包括具有比与其同轴的嘴的直径更小的圆柱形管或管道。 管装配有向下开口的外槽，并保持向主流中回送的冠涡流。 该槽具有直径大于口的外壁或围裙，并且其外周位于管的底端下方，同时在转换器上方间隔开。