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过去我厂30t转炉炼钢吹氧使用锻造加工三孔喷头,因三孔中心部位无水冷,喷头寿命低,历年平均枪龄只有158～365炉,喷枪的频繁更换,不仅影响炼钢作业时间和加重设备维修的负担,而且对稳定转炉操作和进一步提高技术经济指标不利。为了提高喷枪使用寿命,首钢炼钢厂与北京钢铁学院合作,共同研制中心水冷铸造喷头,由首钢炼钢厂提供喷头设计,北京钢铁学院负责铸造加工。这种新
In the past, the 30t BOF steelmaking oxygen using forging processing three-hole nozzle, because the three holes in the central part of the water cooling, nozzle life is low, the average annual gun age only 158 ~ 365 furnaces, frequent replacement of the gun, not only affects the steelmaking operation time and Increase the burden on equipment maintenance, but also to stabilize the converter operation and further improve the technical and economic indicators. In order to improve the service life of the lance, Shougang Steel Works cooperated with Beijing Institute of Iron and Steel Technology to jointly develop a water-cooled casting nozzle. Shougang Steel Works provided nozzle design, and Beijing Iron and Steel Institute was responsible for casting and processing. This new