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增加烧结矿中w(MgO),从而提高高炉渣中w(MgO)是改善高炉炉渣性能的1种主要措施。设计了3组试验方案:方案1为渣中w(Al2O3)为18%,w(MgO)/w(Al2O3)为0.72,R4为0.95,R2为1.08;方案2为渣中w(Al2O3)为实际值,w(MgO)/w(Al2O3)为0.72,R2为1.1;方案3为渣中R2为1.1,烧结矿中w(MgO)为1.80%,并采用在高炉中加入白云石的方法满足渣中MgO的要求。结果表明,方案2烧结生产率提高,转鼓强度最高,达64.27%。
Increasing w (MgO) in sinter and increasing w (MgO) in blast furnace slag is one of the main measures to improve the performance of blast furnace slag. Three experimental schemes were designed. In the scheme 1, the content of w (Al2O3) in the slag was 18%, the ratio of w (MgO) / w (Al2O3) was 0.72, R4 was 0.95 and R2 was 1.08. The actual value, w (MgO) / w (Al2O3) is 0.72, R2 is 1.1; in Scheme 3, R2 in the slag is 1.1, w (MgO) in the sinter is 1.80%, and the method of adding dolomite in the blast furnace is adopted MgO slag requirements. The results show that the productivity of sintering scheme 2 is improved, and the drum strength is the highest, reaching 64.27%.