資源描述:
《生料磨物料平衡計算》由會員上傳分享,免費在線閱讀,更多相關(guān)內(nèi)容在行業(yè)資料-天天文庫。
1、2.1物料平衡計算⑴原料、燃料化學組成表2-1原料化學成分(%)物料名稱燒失量SiO2Al2O3Fe2O3CaOMgO總和石灰石40.432.901.680.8252.650.5899.06砂巖3.4779.897.761.863.340.6196.93鋼渣0.8014.465.0620.7347.439.2897.76粘土5.4655.3024.0311.432.460.2598.93煙煤煤灰0.0051.8532.505.384.051.6495.42表2-2原煤工業(yè)分析煙煤水分揮發(fā)分灰分固定碳熱值(M
2、ar/%)(Var/%)(Aar/%)(Car/%)(Qar/KJ/kg)含量1.9127.1517.8353.1124677⑵率值的確定查《新型干法水泥工藝設(shè)計手冊》,假設(shè)新型干法生產(chǎn)的熟料率值為:KH=0.9±0.02,IM=1.6±0.1,SM=2.6±0.1。⑶物料配料計算應用Excel規(guī)劃求解工具,選擇生料配比為可變量既決策變量,各個配比總和等于100為目標值,設(shè)定熟料理論率值等于熟料目標率值為約束條件,通過改變熟料目標率值得到生料配比如下表:表2-3生料化學成分表名稱配合比燒失量SiO2Al2O
3、3Fe2O3CaO石灰石80.1232.392.321.350.6642.18粘土2.180.121.210.520.250.05砂巖12.750.4410.190.990.240.43鋼渣4.950.040.720.251.032.35生料10032.9914.433.112.1745.01灼燒生料100—21.544.643.2467.17⑷粉煤灰摻入量計算yqARS=y100QDWq為水泥熟料燒成熱耗,取q=3050kJ/kg熟料3050×17.83×100則S==2.20100×24677式中:S—
4、—煤灰摻入量,以熟料百分數(shù)表示100%yD——煤的應用基低熱值kJ/kg煤DWyA——煤的應用基灰分含量%q——熟料燒成熱耗kJ/kg熟料R——煤灰沉落度%,當窯后有電收塵且窯灰入窯時取100%⑸熟料化學成分與率值的校驗煤灰摻量為S=2.2%表2-4熟料化學成分表名稱配合比SiO2Al2O3Fe2O3CaO灼燒生料97.821.064.543.1765.69煤灰2.21.140.720.120.09熟料10022.215.263.2865.78⑹熟料率值檢驗CaO?1.65Al2O3?0.35Fe2O365
5、.78?1.65×5.26?0.35×3.28KH===0.902.8SiO2.8×22.212SiO22.212SM===2.60AlO+FeO5.26+3.282323Al2O35.26IM===1.60FeO3.2823經(jīng)過以上計算過程,三個率值均在允許的誤差范圍內(nèi),所以計算結(jié)果正確。⑺干濕換算原料操作水分:石灰石1%,砂巖3%,粘土3%,鋼渣12%80.12濕石灰石:×100=80.93100?112.75濕砂巖:×100=13.14100?32.18濕粘土:×100=2.25100?34.95濕鋼
6、渣:×100=5.63100?12換算成百分比:80.93濕石灰石:=79.38%80.93+13.14+2.25+5.6313.14濕砂巖:=12.89%80.93+13.14+2.25+5.632.25濕粘土:=2.21%80.93+13.14+2.25+5.635.63濕鋼渣:=5.52%80.93+13.14+2.25+5.63⑻料耗計算生料的理論消耗量一噸熟料的干生料的理論消耗量:100?S100?2.2K===1.459t/t熟料T100?I100?32.99式中:K——生料理論消耗量t/t熟料
7、TI——干生料消耗量%一噸熟料的實際干生料耗量:100K100×1.459TK===1.505t/t熟料100?P100?3式中:P——生料的生產(chǎn)損失各種干原料的消耗定額:K=KX原生式中:K——某種干原料的消耗定額t/t熟料原Χ——干生料中原料的配合則各種原料的消耗定額為:K=1.505×80.12%=1.2058t/t熟料石灰石K=1.505×12.75%=0.1919t/t熟料砂巖K=1.505×2.18%=0.0328t/t熟料粘土K=1.505×4.95%=0.0745t/t熟料鋼渣根據(jù)干料中飽含
8、水分,濕物料的消耗定額為:100濕石灰石:1.2058×=1.2180t/t熟料100?1100濕砂巖:0.1919×=0.1978t/t熟料100-3100濕粘土:0.0328×=0.0338t/t熟料100?3100鋼渣:0.0745×=0.0847t/t熟料100-12⑼燃煤計算燒成用煤消耗定額:100q100×3050K===0.1274t/t熟料f1g()24677×()100?3Q×100?Pdwf式