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15～20吨钢包真空精炼炉系我国自行设计,研制的第一台钢包真空精炼炉。该设备于1979年12月鉴定通过,已正式交付北京钢厂投产使用。调试试生产表明,该设备的真空系统设计是成功的,基本上能满足真空精炼的工艺要求,取得了良好的真空精炼效果:轴承钢真空精炼后,氢(H_2)最低降至1.6PPm,总氧含量最低降至20PPm,夹杂物合格率提高至100%,点状出现率明显降低,电炉生产率能提高17%,电耗节省70～80度/吨钢,已精炼成功无发纹航空用合金结构钢。本文简介该设备真空管路系统和水蒸汽喷射真空泵设计及调试情况,供有关部门,单位参考。
15 ~ 20 tons ladle vacuum refining furnace is our own design, developed the first ladle vacuum refining furnace. The equipment was appraised in December 1979 and has been formally delivered to the Beijing steel plant for production. Commissioning trial production showed that the vacuum system design of the equipment was successful and could basically meet the vacuum refining process requirements and achieved a good vacuum refining effect. After vacuum refining of bearing steel, the minimum of hydrogen (H2) dropped to 1.6PPm, The lowest oxygen content dropped to 20PPm, inclusions pass rate increased to 100%, the punctate appearance rate decreased significantly, electric furnace productivity can be increased 17%, power consumption savings of 70 ~ 80 degrees / ton of steel has been refined without hairline aviation alloy Structural steel. This article describes the equipment vacuum piping system and steam jet vacuum pump design and commissioning for the relevant departments and units for reference.