“低碳厚料”烧结制度的实践

• 作 者: 曹穆民
• 机 构: 首钢烧结厂
• 出 处: 烧结球团
• 发表日期: 1980年02期
• 关键词: 精矿品位 烧结料 烧结制度 烧结生产 精矿粉 返矿 细筛 烧结矿强度 低碳 铁酸钙

迁安矿山采用了“细筛再磨”新工艺以后,精矿粉品位明显地提高了。随着精矿品位的提高,给烧结生产带来了两个迫切需要解决的问题:第一是随着精矿品位的提高,精矿粉粒度明显变细,这样就恶化了烧结料层的透气性;第二随着精矿品位的提高,矿粉中SiO_2的含量显著降低,见表1,这样烧结过程中形成的硅酸盐系

Qian’an mine adopted a “fine screen and then grinding,” a new process, the concentrate grade significantly increased. With the improvement of concentrate grade, it brings two urgent problems to be solved in sinter production. The first is that with the increase of concentrate grade, the size of concentrate powder is significantly thinner, which deteriorates the permeability of the sintering material layer The second; with the improvement of concentrate grade, the content of SiO 2 in the slag is significantly reduced, see Table 1, so that the silicate system formed during sintering