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US 4,062,531 AGranted
Ferruginous slag oxidizing apparatus
AssigneeOsaka Iron & Steel Co., Ltd.
InventorKiyoshi Takai
Life of this patent
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Abstract
The disclosure is of apparatus useful for oxidizing and mixing molten ferruginous metallurgical slags such as converter slag, electric steel making furnace slag and open hearth furnace slag.
Claims6
Apparatus for oxidizing and mixing molten ferruginous metallurgical slags, which comprises;
- a blow lance having an open inlet end, an open nozzle end, a plurality of nozzles positioned on said nozzle end, at different distances from said inlet end, and a hollow pipe joining said ends, the axis of each of said nozzles being disposed at an angle of less than 90.degree. but more than 0.degree. to the vertical;
- support means for said lance, attached to the lance and adapted to raise the lower said lance in a vertical plane;
- means for rotating said lance about its vertical axis, said rotating means being connected to said lance;
- and
- means for cooling said lance attached to the lance.
2 more elements
Dependencies are inferred from the claim text.