一般大中型高炉一代炉龄只有3～5年,,炉龄短不仅影响生铁产量,而且大修一次要耗资大量资金,因此,如何延长炉龄问题已引起各企业的高度重视。 本溪钢铁公司利用1990年检修5号高炉的机会,为延长炉龄采取了多项措施,现具体介绍如下: 1.5号高炉短寿原因 (?)5号高炉是一(?)2000m~3的大型高炉,自1972年投产以来,共经历了三次大修,其中检修间隔期最短的是1987年6月-1990年3月,仅35个月,与国内同 Generally, large-sized and medium-sized blast furnaces have only 3 to 5 years of furnace life. Short furnace ages not only affect the production of pig iron, but also greatly cost a lot of capital for the overhaul. Therefore, how to prolong the furnace age has drawn great attention from all enterprises. Benxi Iron and Steel Company took advantage of the opportunity to overhaul No. 5 blast furnace in 1990 and took various measures to extend the furnace age. Details are as follows: No. 1.5 blast furnace short-lived reason (?) No. 5 blast furnace is a? 2000m ~ 3 large Blast furnace, since its commissioning in 1972, has undergone three major repairs, of which the shortest maintenance interval is June 1987 - March 1990, only 35 months, and domestic