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我厂为了提高生铁产量,降低成本,于四月上旬首先在6.5M~3小高炉进行石灰炼铁的试验,效果良好,日产从3吨多上升到5.34吨。在试验时曾遇到一些思想障碍,有些人认为:石灰机械强度不好,入炉后容易挤碎,被风吹出炉外,同时石灰的碎粉末在炉内会影响到高炉料柱透气性,不能保证高炉正常生产。有的认为石灰容易粉化,不易保管
In order to increase pig iron production and reduce costs, our factory first tested limestone in 6.5M ~ 3 small blast furnace in early April, and the effect was good. Nissan increased from 3 tons to 5.34 tons. In the experiment had encountered some ideological obstacles, some people think: the mechanical strength of lime is not good, easily crushed into the furnace, the wind was blown out of the furnace, while the broken powder of lime in the furnace will affect the blast furnace column permeability, Can not guarantee the normal production of the blast furnace. Some believe that lime is easy to powder, not easy to keep