炼钢转炉设计

0.25渣中铁珠0.620.51氧气7.1625+0.0331=7.19565.89矿石1.00.82合计121.629100.00合计121.43100.00注:计算误差为(121.629-121.43)/121.629×100%=0.16%表2-14加入废钢的物料平衡表(以100㎏铁水+废钢为基础)收入支出项目质量/㎏%项目质量/㎏%铁水94.0578.03钢水92.3880.89废钢5.959.91炉渣9.838.62石灰4.053.13炉气9.067.93萤石0.470.23喷溅0.940.82轻烧白云石2.351.95烟尘1.411.23炉衬0.280.23渣中铁珠0.580.51氧气6.776.13 矿石0.940.39合计114.86100.00合计114.20100第六步:计算脱氧和合金化后的物料平衡。现根据钢种成分设定值(表2-1)和铁合金成分及其回收率(表2-3)算出锰铁和硅铁的加入量,在计算其元素的烧损量。将所有的结果与表2-14合并,及得到炼一炉钢的总物料平衡表。锰铁加入量WMn为:WMn=×钢水量=×92.38=0.63kg硅铁加入量WSi为:WSi===0.42kg铁合金中元素烧损量和产物量列于表2-15。脱氧和合金化后的钢水成分如下:w(C)=0.10%+×100%=0.14%表2-15铁合金中元素烧损量和产物量类别元素烧损量㎏脱氧量/㎏成渣量/㎏炉气量/㎏入钢量㎏锰铁C0.63×6.60%×10%=0.0040.0110.0150.63×6.60%×90%=0.037Mn0.63×67.80%×20%=0.0850.0250.1100.63×67.80%×80%=0.342Si0.63×0.50%×25%=0.0010.0010.0020.63×0.50%×75%=0.002P0.63×0.23%=0.001S0.63×0.13%=0.001