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一炼钢厂系50年代苏联设计,以500吨固定式平炉为炼钢设备,用下注法注锭后供轧钢成材。大型平炉生产布局的特点是工序布局松散,钢锭在作业线上的流动要借助强大的专用设备,且需多方面密切配合,这就要求有一个合适的生产调度计划。一炼钢厂自1959年开工廿余年没有达到设计能力,原因很多,生产管理不善,是很重要的原因之一。自1973年起,平炉逐步由重油冶炼改为顶吹氧气炼钢,由于强化冶炼工艺,1985年已达到250万吨能力。但炉后系统,尤其是注锭相当紧张,外部条件稍有
A steelmaking plant was designed by the Soviet Union in the 1950s with a 500-tonne fixed hearth as a steelmaking equipment, and a betting method for ingot casting after it was poured. Large open hearth production layout is characterized by loose layout process, the flow of ingot in the operation line to use powerful special equipment, and the need to closely cooperate in many aspects, which requires an appropriate production scheduling plan. One steelmaking plant has not reached the design capacity for more than 20 years since it was started in 1959 for many reasons. Poor management of production is one of the important reasons. Since 1973, the open hearth furnace has been gradually changed from heavy oil refinery to top-blown oxygen steelmaking. As a result of the intensification of the smelting process, the capacity reached 2.5 million tons in 1985. However, after the furnace system, especially the ingot quite nervous, the external conditions slightly