烧结配料计算

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1、烧结配料计算的方法常用的有简易理论计算和现场经验计算法。本设计采用简易理论计算的基本原则是根据“物质守恒”原理，按照对烧结矿主要化学成分的要求，列出相应的平衡方程式，然后求解，为此，必须具备以下基本条件：表2.1烧结原料的化学成分（%）原料TFeMnPSFe2O3FeOSiO2Al2O3富矿粉(一)62.360.540.090.1683.205.302.300.90富矿粉(二)57.770.230.070.1375.306.506.832.50精矿粉55.110.460.060.6773.504.707.372.95石灰石1.080.0641

2、.541.440.57白云石2.870.0484.105.741.45无烟煤灰分5.748.2056.4026.10续上表原料CaOMgOMnOP2O5FeSSO2烧损∑水分富矿粉（一）1.000.900.700.200.305.201006富矿粉（二）1.900.700.300.170.255.551007精矿粉2.501.000.600.131.256.001005石灰石52.482.120.1641.691003白云石30.9217.190.1240.481003无烟煤灰分7.302.00100表2.2燃料工业分析（%）原料固定碳灰分挥

3、发分全硫水分无烟煤82.9813.592.500.9315已知条件原料成分表2.1，表2.2。要求生产TFe=57.21%，CaO/SiO2=1.8，脱硫率定为60%。确定原料（干）用量，以100Kg烧结矿为计算单位，根据供应情况或生产经验，规定精矿用量为20Kg，富矿（二）为33.45Kg，白云石为10Kg，燃料6Kg。假设富矿粉（一）为XKg，石灰石为YKg。按铁平衡列方程式：100×57.21=62.36X+57.55×33.45+55.11×20+5.74×0.1359×6+1.08Y+2.87×10得：62.36X+1.08Y=41

4、94.77(1-1)按碱度平衡列方程式：（1.00X+1.90×33.45+2.50×20+52.48Y+20.92×10+6×0.1359×7.30）/（2.30X+1.44Y+6.83×33.45+7.37×20+5.74×10+56.40×0.1359×6）=1.8得：-1.53X+51.256Y=155.97（1-2）将式（1-1），(1-2),联立求解得：X=38.8KgY=11.14Kg计算烧结矿成分（见表2.3），并校核有关指标。表2.3烧结矿成分计算表原料名称用量/KgTFeMnPSFe2O3FeO%Kg%Kg%Kg%KgKg

5、Kg富矿粉（一）38.862.3624.20.540.210.090.040.160.06富矿粉（二）33.4557.7719.320.230.0770.070.020.130.04精矿粉2055.1111.020.460.0920.060.010.670.13石灰石11.141.080.120.0640.01白云石102.870.290.0480.01无烟煤60.780.050.06合计119.3957.210.3790.070.1269.688续上表原料名称用量/KgCaOMnOSiO2Al2O3MnOP2O5s/2%Kg%Kg%Kg%K

6、gkgKgKg富矿粉（一）38.81.000.390.900.352.300.890.900.35富矿粉（二）33.451.900.640.700.236.832.292.500.84精矿粉202.500.51.000.207.371.472.950.59石灰石11.1452.485.852.120.241.440.160.570.06白云石1030.923.0917.191.725.740.571.450.15无烟煤67.300.062.000.0256.400.4626.100.21合计119.3910.532.765.842.260.5

7、0.160.06注：Fe2O3=(TFe-FeO)×160/112=(57.21-8.0×56/72)×160/112=69.68kgP2O5=0.07×142/62=0.16kgMnO=0.379×71/55=0.5校核：烧结矿碱度R=CaO/SiO2=10.53/5.84=1.8TFe=57.21%烧结矿质量=99.83kg以上数据表明计算正确。