120吨转炉计算

1学号：200615140205HEBEIPOLYTECHNICUNIVERSITY课程设计说明书GRADUATEDESIGN(THESIS)课程设计题目：120吨转炉设计学生姓名：孙韩洋专业班级：06冶金2学院：轻工学院材料化工部指导教师：贾亚楠2010年03月13日2学号：200615140229HEBEIPOLYTECHNICUNIVERSITY课程设计说明书GRADUATEDESIGN(THESIS)课程设计题目：120吨转炉设计学生姓名：张建勋专业班级：06冶金2学院：轻工学院材料化工部指导教师：贾亚楠2010年03月13日31.1转炉计算2.1.1炉型设计1.原始条件炉子平均出钢量为120吨，钢水收得率取92%，最大废钢比取10%，采用废钢矿石法冷却。铁水采用P08低磷生铁[w(si)≤0.85%w(p)≤0.2%w(s)≤0.05%]；氧枪采用三孔拉瓦尔型喷头，设计氧压为1.0Mpa2.炉型选择根据原始条件采锥球型作为本设计炉型。3.炉容比取V/T=1.054.熔池尺寸的计算1)熔池直径的计算公式tGKD(1)确定初期金属装入量G：取B=15%则G=）（金tBT33.12192.01%1521202122）（金金384.178.633.121mGV(1)确定吹氧时间：根据生产实践，吨钢耗氧量，一般低磷铁水约为50～57)(/3钢tm，高磷铁水约为62～69)(/3钢tm，本设计采用低磷铁水，取吨钢耗氧量为57)(/3钢tm。并取吹氧时间为14min，则供氧强度=min)]/([07.414573tm吹氧时间吨钢耗氧量取K=1.79则)(60.41833.12179.1mD2)熔池深度计算筒球型熔池深度的计算公式为)(44.160.47.060.40363.084.1770.00363.02323mDDVh金确定D=4.60m,h=1.44m3)熔池其他尺寸确定(1)球冠的弓形高度:)(438.060.4095.008.01mDh4(2)炉底球冠曲率半径：)(06.560.41.11.1mDR5.炉帽尺寸的确定1)炉口直径0d:mDd208.260.448.048.002)炉帽倾角：取0643)炉帽高度帽H)(45.264tan)208.260.4(21tan2100mdDH）（锥取mmH350口，则整个炉帽高度为：）（口锥帽mHHH80.235.045.2在炉口处设置水箱式水冷炉口炉帽部分容积为：口锥帽）（HddDdDHV202002412)(95.2435.021.24)21.221.26.46.4(49.2123222m6.炉身尺寸确定1)炉膛直径DD膛=4.60m（无加厚段）2)根据选定的炉容比为1.05，可求出炉子总容积为）（容36.12312003.1mV）（帽池总身306.807.2584.176.123mVVVV3)炉身高度)(82.460.4406.80422mDVH身身4)炉型内高）（身帽内mHHhH06.982.48.244.17.出钢口尺寸的确定51)出钢口直径)(17.0)(1712075.16375.163mcmTdT2)出钢口衬砖外径)(02.117.066mddTST3)出钢口长度)(19.117.077mdLTT4)出钢口倾角：取0188.炉衬厚度确定炉身工作层选700mm,永久层115mm,填充层90mm,总厚度为700+115+90=905（mm）炉壳内径为)(41.62905.060.4mD壳内炉帽和炉底工作层均选600mm,炉帽永久层为120mm,炉底永久层用标准镁砖立砌，一层230mm,粘土砖平砌三层65×3=195（mm）,则炉底衬砖总厚度为600+230+195=1025（mm）,故炉壳内形高度为)085.10025.106.9mH（壳内，工作层材质全部采用镁碳砖。9.炉壳厚度确定炉身部分选75mm厚的钢板，炉帽和炉底部分选用65mm厚的钢板。则)(101506510085mmH总)(65607526410mmD壳炉壳转角半径)5.51210255.05.0)(800321mmSRmmSRSR（底10.验算高宽比55.1656010150壳总DH可见，3.1壳总DH，符合高宽比的推荐值。因此所设计的炉子尺寸基本上是合适的。能够保证转炉的正常冶炼进行。2.2．炉衬重心：1.炉帽重心mhmHmmmDmDmd37.3)64tan2(Dd35.7hh8.2h45.2h,35.0h,1.62)150600(6.46.4208.21101210，，，，总则，可得：6)(12142231112121112121dDdDhdDdDhV）（）（锥32267.50)37..31.637.31.6(8.212mV锥大32223.23)208.26.4208.26.4(45.212mV锥小3222034.135.014.32208.22mhdV衬柱V衬衬锥大V-衬锥小V-衬柱V=26.10m3截锥体的重心公式为2222324rRrRrRrRhy锥=112121211110324dDdDddDDhh那么：大锥重心：17.837.31.637.31.637.3337.31.621.648.235.7222衬锥大ym小锥重心：my36.821.26.421.26.421.2321.26.426.4445.235.7222衬锥小圆柱重心：mhhhy9.935.02145.235.721210柱帽衬合成重心：帽锥衬柱衬柱小锥衬钢小大锥衬锥大帽衬VyVyVyVYm91.71.26975.934.136.823.2317.867.502.炉身重心（1）3254.15582.4905.026.4mV）（柱大3210.8082.426.4mV）（柱小344.75-mVVV柱小柱大衬m05.56.45.035.7衬身Y3.炉底mhmDhmhmddDdDmDmd026.1,414.009.0,44.1,19.66.4,14.46.4*9.0m65.62025.16.4D12111001，7)(1211121212dDdDhV锥322m23.3319.665.619.665.6026.112）（底锥大V322m40.1514.46.414.46.4026.112）（底锥小V3m81.17底锥小底锥大底衬VVV截锥体重心公式112121211110324dDdDddDDhhym504.1025.1065.0414.1h0my097.219.6*65.619.665.619.6*319.6*65.6*265.6444.1504.1222低锥大m2.095m14.4*6.414.46.414.4*314.4*6.4*26.4444.1439.1222低锥小y底锥合成重心：mVyVyVY101.281.17095.2*40.15097.2*23.33底衬底锥小底钢小底锥大底锥大底衬球冠合成重心：（2）球冠重心mhmhmRmR439.1025.1414.0,414.0,085.6025.106.5,06.50046.36)3439.1085.6(439.13hh20020）（衬冠大RV3m32265.2)3414.006.5(414.03hhmRV）（衬冠小3m14.51.439085.6321.439085.6243h32h243y0000）（）（衬冠大RRm78.4414.006.532414.006.5243h32h243y）（）（衬冠小RRm381.33V-VVm衬冠小衬冠大3m817.581.3378.4*65.214.5*46.36yVyVyV衬冠小衬冠小衬冠大衬冠大底衬m二．炉壳重心：1.，帽壳重心mmHmmD3.52*0.0653.37d35.7hh8.2h,23.62*065.01.6101，，总)(12142231112121112121dDdDhdDdDhV）（）（锥322m41.53)5..323.65.323.6(8.212帽壳V32267.50)37..31.637.31.6(8.212mV帽锥大725.85.323.65.323.65.335.323.6223.648.235.7222帽壳ym170.837.31.637.31.637.3337.31.621.648.235.7222衬锥大ymV壳帽壳V-衬锥大V=2.74m3m99.1874.2170.8*67.50725.8*41.53y壳帽衬大帽衬大帽壳帽壳帽壳VyVyV2.炉身m82.4,56.62*)075.0905.0(6.4D1身Hm3291.16282.4256.6mV）（身壳3254.15582.4905.026.4mV）（柱大337.7-mVVV柱大身壳壳m05.56.45.035.7身壳Y3.炉底mhmDhmhmddDdDmDmd026.1,414.009.0,44.1,32.66.4,14.46.4*9.0m78.62*065.065.62*065.02025.16.4D12111001，322m57.3432.678.632.678.6026.112）（底壳大V9322m23.3319.665.619.665.6026.112）（底壳小V3m34.1V-V底锥大底壳大底壳Vmy098.232.6*78.632.678.632.6*332.6*78.6*278.6444.1504.1222低壳大mmy097.219.6*65.619.665.619.6*319.6*65.6*265.6444.1504.1222低壳小m底锥壳合成重心：mVyVyVY160.081.17097.2*23.33098.2*57.34底壳底壳小底壳小底壳大底壳大底壳球冠mhmhmRmR439.1025.1414.0,504.1065.0439.1,085.6025.106.5,15.6065.0085.60032002014.40)3504.115.6(504.13hhmRV）（壳冠大46.36)3439.1085.6(439.13hh20020）（壳冠小RV3m368.3V-VVm壳冠小壳冠大冠壳3mm16.51.50415.6321.50415.6243h32h243y0000）（）（衬冠大RRm14.51.439085.6321.439085.6243h32h243y0000）（）（衬冠大RRmm36.568.314.5*46.3616.5*14.40yVyVyV衬冠小衬冠小衬冠大衬冠大底冠壳总重心：10m22.7yyyym16.5yyyyVm13.1568.334.137.774.2m3.15681.3395.2044.7