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安徽省蚌埠、合肥、蕪湖等地的小型鋼铁厂,在全国小高爐会议以后,認真推行了全国各地小高爐高产优質的先进經驗,4月份以来,小高爐的日产水平有了显著提高。3月份全省平均日产生铁4,450吨。4月中旬上升为4,800吨,下旬达到5,600吨,小高爐的利用系数,3月份平均为0.7,4月中旬上升为0.758,下旬达到0.89。多嘴燃烧的經驗在这些地区已开始普遍推广,一般都在热风爐上增加了2～4个燃烧嘴,风温普遍提高了。合肥省直鋼铁厂已把风溫从450℃提高到650℃;蚌埠鋼铁厂由450℃提高到550℃;这个厂还采用并风、并爐的办法,用两套鼓风机、两座热风爐供应一座高爐使用,风量加大了一倍,为了减少热风入爐的阻力,把风口直径由原来的45mm扩大到
Small-scale iron and steel plants in Bengbu, Hefei and Wuhu in Anhui Province have earnestly implemented the advanced experience of high-quality and high-quality small blast furnaces throughout the country after the national small blast furnace meeting. Since April, the daily output of small blast furnaces has risen significantly. In March, the province’s average daily output of 4,450 tons of iron. In mid-April it rose to 4,800 tons and reached 5,600 tons in late-July. The blast furnace utilization factor was 0.7 on average in March, 0.758 in mid-April and 0.89 in late. The experience of talkative combustion has started to be widely promoted in these areas. Generally, 2 to 4 burners are added to the hot blast stove and the temperature of the air is generally raised. Hefei direct steel plant has raised the air temperature from 450 ℃ to 650 ℃; Bengbu steel plant from 450 ℃ to 550 ℃; the plant also uses the wind and the furnace approach, with two sets of blowers, two hot stove supply A blast furnace to use, double the amount of wind, in order to reduce the resistance of hot air into the furnace, the outlet diameter expanded from 45mm