专利名称：CONSTRUCTION OF SPOUT FOR
PRELIMINARY REFINING OF MOLTEN IRON 发明人：WADA MINORU,YAMAMOTO
TAKAIKU,IKEMYA HIROYUKI,SAITO
看护假TOORU,KURITA KAZUYUKI,YOSHIDA SHUJI 申请号：JP29310885
申请日：19851227
男皮带公开号：JPH0421726B2
公开日：
工控主板
19920413
专利内容由知识产权出版社提供
岁岁金河复玉关摘要：PURPOSE:To allow preliminary heating of a tapping spout and cooling of the spout during tapping and passing as desired and to extend the rvice lifetime of the tapping spout by embedding pipings into refractories to constitute the tapping spout of a blast furnace and opening one end thereof to the inside surface side of the tapping spout and the other end to the outside of the tapping spout. CONSTITUTION:A flow passage 10 for a molten iron is provided to the tapping spout 11 as a spout for the molten iron to be tapped from the blast furnace and the pipings 13 substantially consisting of zigzag pipes 14 in relation to a heat exchange are embedded into the refractories 13 for constituting the tapping spout 11. One end 15 of the pipings 13 is opened into the molten iron flow passage 10 of the tapping spout and the other end is opened to the outside of the tapping spout 11. A combustion gas is pasd through the tapping spout to preheat the spout prior to tapping from the blast furnace. Gaous Ar for stirring the molten iron is blown out of apertures 15 for the purpo of preliminary refining such as dephosphorizing and desulfurizing in the tapping spout when the molten
莲蓬怎么画
地的拼音组词>播种未来iron flows in the flow passage 10. The pipings are also ud for cooling of the refractories 12 of the tapping spout. The erosion at the slag line of the tapping spout is prevented and the rvice life thereof is extended.
家庭灭鼠申请人：SUMITOMO METAL IND
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