论文部分内容阅读
通过理论分析,提出了铜渣与钢渣搭配利用的新工艺,并通过试验考察了含碳球团的还原和熔分情况,探讨了该工艺的可行性。铜渣和钢渣互为熔剂,促进了相互的还原过程,碱度为2.0时最有利于磷的还原,1 400℃还原30 min时磷的气化脱除率约为75%;碱度为1.0时最有利于铁氧化物的还原,1 200℃还原20 min时试样的金属化率达到92%。铜渣与钢渣的质量之比高于1.32时可以实现渣、铁分离,碱度为1.0时粒铁的收得率超过90%,磷在粒铁中的分布率接近45%。
Based on the theoretical analysis, a new technology of copper slag and steel slag was put forward, and the reduction and melting of carbon-containing pellets were investigated through experiments. The feasibility of this process was also discussed. Copper slag and steel slag each other flux, promote the mutual reduction process, alkalinity of 2.0 most conducive to the reduction of phosphorus, 1 400 ℃ reduction of 30 min when the phosphorus removal rate of about 75%; alkalinity of 1.0 The most conducive to the reduction of iron oxide, 1 200 ℃ reduction 20 min when the sample metallization rate of 92%. When the mass ratio of copper slag to steel slag is higher than 1.32, separation of slag and iron can be achieved. When the basicity is 1.0, the yield of grain iron exceeds 90% and the distribution rate of phosphorus in grain iron is close to 45%.