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高炉停炉的方法较多,目前大多采用的是空料线停炉。石灰石停炉由于停炉过程中料柱透气性不好,停炉后清除炉内物料时劳动条件恶劣,已很少采用。威钢1997年以来试用焦炭与石灰石停炉,效果较好。本文根据三次停炉实践分析了此法停炉的要领及其优劣。 1 焦炭与石灰石停炉的指导思想按停炉计划在轻负荷料到风口之后先装相当于炉缸及炉底死铁层容积的净焦,然后根据炉顶温度上料。当炉顶温度上升到某一规定值时,上一批石灰石。预计净焦到达风
There are many ways to stop the blast furnace, most of the current use of empty line off furnace. Limestone shutdown due to the process of stopping the furnace column permeability is not good, remove the furnace after the shutdown of materials harsh working conditions, has been rarely used. Granville trial since 1997, coke and limestone shutdown, the better. According to the practice of three shut-down, this paper analyzes the method of shut-down of this method and its advantages and disadvantages. 1 coke and limestone shutdown of the guiding ideology According to the shutdown plan in the light load to the tuyere after the first equivalent to the hearth and bottom of the iron layer of the volume of net coke, and then according to the temperature of the top of the furnace. When the furnace top temperature rose to a certain value, the last batch of limestone. Net wind is expected to reach the wind