1、搅拌器选型与功率计算搅拌过程种类:溶解介质名称:水罐内介质:水/固体粘度:0.009Pa.s密度:1200.0kg/m3罐体直径D1500 mm罐体高度H1200 mm挡板数量4挡板宽度W1/10D搅拌器选型搅拌器型式参考值涡轮式或浆式取值6片折叶开启涡轮Bates算图法计算搅拌功率45计算搅拌功率 N15.73kgfm/s0.154229 KW全挡板双叶浆式4545雷诺数Re52000搅拌过程的控制因素1、剪切速度图219查功率准数Np1.32、循环量槽径D:浆径dj参考值1.6:13.2:1取值2.5:10.4 dj600 mm槽高H:槽径D参考值1:22:1取值1:1用永田进治公式计算浆
2、宽b:浆径dj参考值1:51:8已知条件:取值1:80.125 b75 mmD1500 mmdj600 mm搅拌转速:n65 rpmb75 mm45 槽内液体雷诺数:Re52000Re52000.00Rc71.434(1-sin)1.17R1060.34A24.590.034 B1.08p1.27无挡板平叶 Np0.41N4.90kgf.m/s0.05无挡板折叶 Np0.27N3.24kgf.m/s0.03全挡板平叶 Np1.29N15.64kgf.m/s0.15全档板折叶 Np0.55N6.69kgf.m/s0.072R ejnd53jpdnNN2.1)/35.0(66.0366.0353)(sinRe2.310Re2.110ReDbpjpDHBAdnNN42)/(14.1)5.0/(43.12)/(7)5.0/(5.2)/(41.110185)6.0/(670)/(142DbDdjDbpBDdjDbADdjDb0048.0)/(11.0/)4.0/()/(252DbDbDdjDbRcRcR)sin1(410.kWkWkWkW