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(一)根据小高炉锰铁冶炼的特点,六年来,我厂检修高炉七次(其中全部更换炉衬五次,部份更换炉衬二次),使用过粘土砖、炭素捣固、不灼炭砖,耐热砖四种耐火材质。经过几年的生产实践,小高炉的一代寿命一般只有2～3年,锰铁小高炉比生铁小高炉更短些,加之,我省焦炭供应不够正常,封炉影响炉衬的维护,一代炉令最长的一年多,短的只有几个月。我厂小高炉检修情况如下表所示:
(A) According to the characteristics of ferromanganese smelting of small blast furnace, in the past 6 years, our factory overhaul the blast furnace seven times (all of them replaced the lining for five times and some replaced the lining twice), used clay brick, carbon tamping, , Refractory brick four refractory materials. After several years of production practice, the life of a small blast furnace generation is generally only 2 to 3 years, a small blast furnace of ferromanganese shorter than pig iron blast furnace, in addition, our province coke supply is not normal enough, the impact of furnace closure lining maintenance, generation of furnace order The longest more than a year, short only a few months. I plant a small blast furnace maintenance situation in the following table: