首页>
外国专利>
Procedure of Refining of pig iron poor in Phosphorus
Procedure of Refining of pig iron poor in Phosphorus
展开▼
机译:贫磷铁精炼工艺
展开▼
页面导航
摘要
著录项
相似文献
摘要
1403058 Converter steel-making EISENWERK-GES MAXIMILIANSHUTTE mbH 7 Dec 1972 [7 Dec 1971] 56438/72 Heading C7D A method of refining a low-phosphorus pig iron melt in a converter comprises blowing a suspension of powdered lime in O 2 into the melt through the inner of a pair of coaxial nozzles projecting through the lining of the converter below the melt surface, a liquid or gaseous hydrocarbon being blown through the outer nozzle as a protective. Suitable hydrocarbons include CH 4 , C 3 H 8 , C 4 H 10 , C6H6, alcohol, kerosene, natural gas, coke oven gas, and light fuel oil, preferably up to 10% of the O 2 . Prior to the above process, lime may be blown in with N 2 or Ar, again surrounded by a hydrocarbon, to effect desulphurization. The lime may be added in batches, or continuously in varying amounts. A fluxing agent, e.g. fluorite, feldspar, bauxite may also be added to the O 2 stream.
展开▼
机译:1403058转炉炼钢厂EISENWERK-GES MAXIMILIANSHUTTE mbH 1972年12月7日[1971年12月7日] 56438/72税目C7D精炼转炉中低磷生铁的方法包括将石灰粉在O 2中的悬浮液吹到熔体中通过一对同轴喷嘴的内部,该同轴喷嘴穿过熔体表面下方的转炉衬里伸出,液态或气态碳氢化合物被吹过外部喷嘴作为保护剂。合适的烃包括CH 4,C 3 H 8,C 4 H 10,C 6 H 6,醇,煤油,天然气,焦炉气和轻质燃料油,优选最多O 2的10%。在上述方法之前,可以将石灰与再次被烃包围的N 2或Ar一起吹入,以进行脱硫。石灰可以分批或以不同量连续添加。助熔剂,例如也可以将萤石,长石,铝土矿添加到O 2流中。
展开▼