论文部分内容阅读
为保证硅锰合金含Si17—2O%,硅锰渣中二氧化硅应达饱和浓度(即SiO_247—49%),所以含13—16%Mn和47—49%SiO_2的硅锰终渣按化学成分接近平衡。炉渣结构主要是由硅氧化合物内Si-O结合力较强的硅氧族为骨架而组成,因此在上述二氧化硅浓度范围的上限便形成三度结构,直至析出固相。所以,炉渣具有较高的粘度,并且二氧化硅与炭素还原剂相互作用的效率明显降低。此外,锰大部分以被还原金属颗粒夹在渣中。当用过剩碱土熔剂稀释熔渣时,正如
In order to ensure the silicon-manganese alloy containing Si17-2O%, silicon dioxide should reach the saturation concentration of silicon dioxide (ie SiO_247-49%), so with 13-16% Mn and 47-49% The ingredients are close to equilibrium. The slag structure is mainly composed of a Si-O group with a strong Si-O bond in the silicon oxide as a skeleton. Therefore, the upper limit of the above-mentioned concentration range of the silica forms a tertiary structure until the solid phase is precipitated. Therefore, the slag has a higher viscosity, and the efficiency of the interaction between silica and the carbonaceous reducing agent is significantly reduced. In addition, most of the manganese is trapped in the slag with the reduced metal particles. When diluting the slag with excess alkaline earth flux, just as