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随着炼铁生产技术的进展,高炉在使用精料操作的条件下,大幅度的提高热风温度,已成为降低焦比、提高产量的一项重要手段。因此目前在现有设备条件下,如何进一步改进操作,挖掘热风炉潜力,还是有一定现实意义。济南铁厂根据鞍钢的经验,结合本厂情况,对热风炉操作进行了一系列的改进,并取得很好效果。小高炉热风炉存在的问题: 1.由于中、小型高炉热风炉使用的煤气质量差,一般含尘均在0.05克/米~3左右,因此选用格孔较大的80～120毫米单段式蓄热室。这种结构形式不仅蓄热能力差,而且还造成烟道温度高(一般在500～550℃个别高达650～
With the progress of ironmaking production technology, blast furnace using the fine material operating conditions, a substantial increase in hot air temperature has become an important means to reduce the coke ratio and increase production. Therefore, under the current equipment conditions, how to further improve operations and tap the potential of hot stove, or have some practical significance. Jinan Iron and Steel based on Ansteel experience, combined with the factory situation, the operation of the stove carried out a series of improvements and achieved good results. Small blast furnace hot stove problems: 1. As medium and small blast furnace blast furnace gas quality is poor, the general dust are in 0.05 g / m ~ 3 or so, so use a larger grid 80-120 mm single-stage Regenerative room. This structure is not only poor thermal storage capacity, but also caused the flue temperature is high (usually 500 ~ 550 ℃ individual up to 650 ~