摘要
针对脱硫搅拌设备含固率分布和搅拌功率优化问题,在无挡板方形搅拌槽内,采用单层双弧叶桨式搅拌器开展搅拌实验。以槽内近壁面不同高度测点的脱硫石膏体积分数与完全均匀悬浮下的体积分数的离散程度作为研究对象,以泰尔不等式系数(Theil's inequality coefficient,TIC)作为离散程度的指标,探究了不同搅拌器转速、搅拌器离底高度、桨叶直径、桨叶角度的单因素影响规律,并利用响应面进行搅拌功率优化。结果表明,在单因素实验中,当桨叶中心离底高度在液位高度的大约3/10时含固率最高,达到所期望的TIC(TIC≤0.1516)所需最小搅拌功率为20.42 W,通过响应面参数优化后,功率降低到了17.94 W,功率消耗降低了约12%。
To address the solid content distribution and agitating power optimization issues of the desulfurization agitator,a single⁃layer double⁃arc impeller agitator is used in a baffle⁃free square mixing tank for experiment.The study focuses on the dispersion degree of desulfurized gypsum volume fraction at different heights near the wall surface of the tank and the dispersion degree of volume fraction under complete uniform suspension.Taking Theil's inequality coefficient(TIC)as the dispersion degree indicator,the single factor influence laws of different agitator speeds,agitator height from the bottom,blade diameter,and blade angle are explored,and the agitating power optimization is conducted by using response surface methodology.Results indicate that in the single factor experiment,the solid content is the highest and the minimum stirring power required for the desired TIC(TIC≤0.1516)is 20.42 W when the impeller off⁃bottom clearance is approximately 3/10 of liquid level height.After response surface optimization,the power reduces to 17.94 W,and power consumption decreases by around 12%.
作者
王逸
杨瑞
向家伟
吴亮
谢明辉
周国忠
刘宝庆
WANG Yi;YANG Rui;XIANG Jia-wei;WU Liang;XIE Ming-hui;ZHOU Guo-zhong;LIU Bao-qing(College of Mechanical and Electrical Engineering,Wenzhou University,Wenzhou 325035,China;Zhejiang Greatwall Mixers Co.,Ltd.,Wenzhou 325019,China;Institute of Process Equipment,Zhejiang University,Hangzhou 310027,China)
出处
《现代化工》
CAS
CSCD
北大核心
2024年第S01期314-321,共8页
Modern Chemical Industry
基金
国家自然科学基金(21978255)。
关键词
搅拌设备
含固率分布
泰尔不等式系数
功率消耗
响应面
参数优化
agitator
solid content distribution
Theil's inequality coefficient
power consumption
response surface methodology
parameter optimization
