论文部分内容阅读
(一)高炉无料钟炉顶装料装置的提出和发展概况随着高炉向大型化发展,炉顶装料设备也日趋庞大和复杂,旧的钟式炉顶设备已不能满足生产的要求,这是由于:(1)气密性难以保证,由于炉喉直径的扩大,大钟的直径也增大,其加工精度更难以满足高压密封的要求;(2)料钟制造困难,由于料钟尺寸加大,给加工、运输和维护都带来很大困难,设备投资也相应地增加;(3)部件更换时间长,一般2000m~3钟式炉顶,更换大钟需七天;(4)炉顶炉料分布不佳,钟式炉顶只能作圆周
(A) the blast furnace no clock bell Top loading device proposed and development overview With the development of large-scale blast furnace, roof charging equipment is also increasingly large and complex, the old bell-type roof equipment can no longer meet the production requirements, This is due to: (1) gas tightness is difficult to guarantee, due to the expansion of the throat diameter, the diameter of the bell also increased, the processing accuracy is more difficult to meet the requirements of high pressure sealing; (2) material bell manufacturing difficulties, The size increases, to the processing, transportation and maintenance have brought great difficulties, equipment investment also increased accordingly; (3) parts replacement time is long, usually 2000m ~ 3 bell-style roof, Top distribution of furnace charge, bell-type roof can only make a circle