转炉车间设计物料平衡热平衡计算

成分含量/%CSiMnPS钢种Q2750.350.350.60.0450.05铁水设定值4.80.80.70.20.035废钢设定值0.350.350.60.030.03终点钢水设定值0.2痕迹0.20.020.021成分含量/%CaOSiO2MgOAl2O3Fe2O3CaF2P2O5S石灰882.52.61.50.50.10.06萤石0.35.50.61.61.5880.90.1生白云石36.40.825.61炉衬1.2378.81.41.6焦炭成分含量,回收率CSiMnAlPSFe硅铁/%0,073.00,750.50,802.50,00.05,1000.03,10023.92,100锰铁/%6.60,900.50,7567.8,800,00.23,1000.13,10024.74,100成分名称CSiMnAlPSFe硅铁中含量073.000.502.500.050.0323.92回收率075800100100100锰铁中含量6.600.5067.800.230.1324.74回收率9075800100100100元素耗氧量产物量备注4.1405.5209.6600.4601.2271.687Si0.8000.9141.714入渣Mn0.5000.1450.645入渣P0.1800.2320.412入渣0.0050.0050.0100.009-0.0050.020入渣0.7600.2170.977入渣(#8)0.3870.1660.553入渣(#8)8.4224.322组分之和CaOSiO2MgOAl2O3Fe2O30.3%0.0030.0080.1970.0040.0040.3%x14x90%x28/12=0.0740.3%x14x10%x44/12=合计CaOMgOSiO2Al2O3Fe2O3P2O5CaS使用说明：以下表格中的所有数据请保留原有格式，并使用英文半角输入法输入！氧气顶吹转炉炼钢物料平衡和热平衡计算表5，铁水中元素的氧化产物及其成渣量4.6x90%=4.6x10%=0.014x1/3=0.014x2/3=0.977x56/72=元素氧化量气态产物[Fe]→(Fe2O3)C合计成渣量0.086[P]→(P2O5)[S]→{SO2}[S]+(CaO)→(CaS)+(O)[Fe]→(FeO)0.553x112/160=7.2272.物料平衡基本项目3.计算步骤表7，加入熔剂的成渣量表6，炉衬蚀损的成渣量成渣组分C→COC→CO2炉衬蚀损量成渣组分SFe反应产物[C]→{CO}[C]→{CO2}[Si]→(SiO2)[Mn]→(MnO)一、物料平衡计算表1，钢种、铁水、废钢和终点钢水的成分设定值表2，原材料成分表3，铁合金成分及其回收率1.计算原始数据类别加入量0.215萤石0.500.0020.0030.0280.0080.0080.0050.001生白云石2.500.9100.6400.0200.025石灰5.484.8140.1420.1370.0820.0270.0050.0075.7260.7850.1840.1150.0350.0100.009炉渣成分CaOSiO2MgOAl2O3MnOFeOFe2O3CaF2元素氧化成渣量1.7140.6450.9770.553石灰成渣量4.8140.1370.1420.0820.027炉衬蚀损成渣量0.0030.0080.1970.0040.004生白云石成渣量0.9100.0200.6400.025萤石成渣量0.0020.0280.0030.0080.0080.440总渣量5.7291.9060.9820.1190.6450.9770.5920.440质量分数48.37816.0988.2961.0025.4518.2505.0003.716铁水中元素氧化耗氧量8.422铁水中S与CaO反应还原出的氧化量0.005炉衬中碳氧化耗氧量0.051石灰中S与CaO反应还原出的氧化量0.002烟尘中铁氧化耗氧量0.340炉气自由氧含量0.067合计8.880合计0.006炉气成分炉气量体积分数CO9.7347.78783.09CO22.8591.45515.53SO20.0100.0040.04H2O0.0130.0160.17O20.0670.0470.50N20.0780.0630.67合计12.761100.00项目质量%项目质量%铁水100.0084.98钢水89.9876.39石灰5.484.65炉渣11.8410.05萤石0.500.42炉气12.7610.83生白云石2.502.12喷溅1.000.85炉衬0.250.21烟尘1.501.27钢水量Qg=89.98氧气8.957.61渣中铁珠0.710.60合计117.68100合计117.79100元素耗氧量0.0260.0350.062(入气)0.0030.0080.011(入气)Si0.0680.0780.147Mn0.0780.0230.101P0.0020.0030.0040.00060.00060.001(入气)0.0012-0.00060.003(CaS)0.147Vg---7.787+1.455+0.004+0.016==100-7.227-[1.5x(75%x56/72+20%x112/160)+1+11.841x6.0%]计算误差为(117.68-117.79)/117.68=V(Σ)=99Vg+0.7Gs-Vx98.50元素氧化量19.55x0.15%x90%=19.55x0.15%x10%=19.55x0.35%=19.55x0.4%=19.55x0.01%=19.55x0.009%x1/3=19.55x0.009%x2/3=0.180合计C表8，总渣量及其成分合计成渣量7.304体积[S]+(CaO)→(CaS)+[O]收入支出表11，未加废钢时的物料平衡表8.880-0.006+0.078=8.953耗氧项供氧项实际氧气消耗量表9，实际耗氧量9.734x22.4/28=2.859x22.4/44=0.010x22.4/64=0.013x22.4/18=9.371表10，炉气量及其成分表12，废钢中元素的氧化产物及其成渣量S产物量反应产物[C]→{CO}[C]→{CO2}[Si]→(SiO2)[Mn]→{MnO}[P]→(P2O5)[S]→{SO2}项目%项目铁水100.0072.79钢水109.35废钢19.5514.23炉渣12.10石灰5.483.99炉气12.83萤石0.500.36喷溅1.00轻烧白云石2.501.82烟尘1.50炉衬0.250.18渣中铁珠0.71氧气9.0996.62合计100合计项目质量%项目质量%铁水83.6472.79钢水91.4779.53废钢16.3614.23炉渣10.128.80石灰4.583.99炉气10.739.33萤石0.420.36喷溅0.840.73轻烧白云石2.091.82烟尘1.251.09炉衬0.210.18渣中铁珠0.590.52氧气7.616.62合计114.91100合计115.00100类别元素脱氧量成渣量炉气量C0.0040.0120.016Mn0.0910.0270.118Si0.0010.0010.002PSFe合计0.0390.1200.016Al0.0150.0130.028Mn0.00060.00020.0008Si0.10650.1220.228PSFe合计0.1350.2570.1740.3770.0160.04092.510.00292.510.00192.51表16，总物料平衡表收入支出0.161x81.5%x25%=0.598%0.022%0.022%附表，脱氧合金化后的钢水成分0.033碳烧损量ω(C)=ω(Si)=ω(Mn)=ω(P)=ω(S)=(0.20%+x100%)=x100%=x100%)=x100%)=x100%)=0.003+0.32092.51(0.200%+(0.020%+(0.021%+92.510.366+0.0020.243%0.348%0.58x0.05%=0.58x0.03%=0.58x23.92%=0.5780.4621.0400.67x6.60%x90%=0.67x67.80%x80%=0.67x0.50%x75%=0.67x0.23%=0.67x0.13%=0.67x24.74%=0.58x0.50%x80%=0.58x73.00%x75%=收入支出表14，加入废钢的物料平衡表(以100kg(铁水+废钢)为基础)烧损量入钢量锰铁总计硅铁表15，铁合金中元素烧损量及产物量0.67x6.60%x10%=0.67x67.80%x20%=0.67x0.50%x25%=0.58x2.50%x100%=0.58x0.50%x20%=0.58x73.00%x25%=0.0970.1220.21889.98+19.374=11.84+0.255=12.76+0.074=137.49137.388.953+0.15=质量收入支出表13，加入废钢的物料平衡表(以100kg铁水为基础)质量成渣量0.255锰铁加入量硅铁加入量0.35%x(91.47+0.58)-0.00373.00%x75%WMn=Wsi=0.60%-0.20%67.80%x80%项目%项目铁水83.6471.74钢水92.60废钢16.3614.03炉渣10.51石灰4.583.93炉气10.88萤石0.420.36喷溅0.84轻烧白云石2.091.79烟尘1.25炉衬0.210.18渣中铁珠0.59氧气7.876.75锰铁0.670.58硅铁0.580.50焦粉0.160.14合计100合计组元铁水废钢其他原料炉渣炉气烟尘C温度12502525同钢水14501450C纯铁熔点为1536摄氏度。SiMnPFeFe物料名称生铁钢炉渣矿石烟尘炉气SiO2固态平均热容0.7450.6991.0470.996P2O5熔化潜热218272209209209CaCO3液气态平均热容0.8370.8371.2481.137MgCO36570758085901000122.533.5410025摄氏度。Tt=1033Qw=115056.83反应产物C→CO48185.462501.49C→CO216023.643416.40Si→SiO223361.602060.51Mn→MnO3297.003088.07Fe→FeO3229.24项目备注炉气物理热20674.92炉气烟尘烟尘物理热2442.45渣中铁珠物理热1034.26钢水熔点喷溅金属物理热1455.71合计12.76x[1.137x(1450-25)]=1.50x[0.996x(1450-25)+209]=0.71x[0.699x(1515-25)+272+0.837x(1685-1515)]=1.00x[0.699x(1515-25)+272+0.837x(1685-1515)]=表23，热平衡表收入支出Qz=25607.34氧化热或成渣热表21，元素氧化热和成渣热105163.401536-(4.8x100+0.8x8+0.7x5+0.2x30+0.035x25)-6=铁水熔点Tt与物理热Qw，计算中以kg铁水为基础。设定室温为100x[0.745x(1033-25)+218+0.837x(1250-1033)]=参数表22，某些物料的物理热4.140x11639=0.460x34834=0.800x29202=0.500x6594=0.760x4250=氧化热或成渣热0.387x6460=0.180x18980=0.422x4880=1.906x1620=Fe→Fe2O3P→P2O5P2O5→4CaO.P2O5SiO2→2CaO.SiO2合计Qy反应产物2.计算步骤表20，熔入铁水中的元素对铁熔点的降低值表19，炼钢温度下的反应热效应元素在铁中的极限溶解度溶入1%元素使铁熔点降低值氦氢氧溶入使铁熔点降低值适用含量范围C5.41二、热平衡计算1.计