基于响应面法的锂渣旋流除泥优化研究  

Optimization of Hydrocyclone Desliming for Lithium Slag Based on Response Surface Method

作　　者：段耀旭 张悦刊[1] 刘培坤[1] 葛江波 DUAN Yaoxu;ZHANG Yuekan;LIU Peikun;GE Jiangbo(College of Mechanical and Electronic Engineering,Shandong University of Science and Technology,Qingdao 266590,China)

机构地区：[1]山东科技大学机械电子工程学院,山东青岛266590

出　　处：《金属矿山》2022年第3期177-182,共6页Metal Mine

基　　金：山东省自然科学基金面上项目(编号:ZR2020ME105)。

摘　　要：锂渣中含有一定量的有价金属,除泥是从锂渣中获取有价金属的重要途径。基于响应面法,采取BoxBehnken Design(BBD)设计方法,以旋流器进料浓度、进料压力和底流口直径为研究对象,获取了这3个因素对锂渣除泥分级质效率的影响规律,建立了影响分级质效率的多元数学模型。通过对试验和模拟数据进行方差分析,验证了数学模型的精度,并通过三维曲面图探明了各参数之间的交互作用以及对分级质效率的影响程度。结果表明,各因素对分级质效率的影响程度大小依次为:底流口直径、进料压力、进料浓度,且底流口直径与进料浓度有着很强的交互作用。通过优化试验可知,当进料浓度为10%,进料压力为0.12 MPa、底流口直径为8 mm时,-20μm颗粒分级质效率可达67.37%,此时底流中-20μm颗粒含量为5.67%,与进料相比降低了28.6个百分点。The lithium slag contains a certain amount of valuable metals,and desliming is an important way to obtain valuable metals from lithium slag.Based on the response surface method by the Box-Behnken Design(BBD),with the feed concentration,feed pressure and underflow port diameter of the hydrocyclone as the research objects,the influence of these three factors on the efficiency of lithium slag sludge removal and separation law was obtained,and a multivariate mathematical model for the separation quality efficiency was established.The accuracy of the mathematical model was verified through the analysis of variance on the experimental and simulated data,and the interaction between the parameters and the degree of influence on the separation quality efficiency were explored through the three-dimensional surface graph.The results showed that the degree of influence of each factor on the separation quality efficiency is as follows:underflow orifice diameter,feed pressure and feed concentration,and the underflow orifice diameter has a strong interaction with the feed concentration.When the feed concentration is 10%,the feed pressure is 0.12 MPa,and the underflow orifice diameter is 8 mm,the separation quality efficiency of-20μm particles can reach up to 67.37%,and the contents of-20μm particles in the underflow is 5.67%,which is 28.6 percentage points lower than that in the feed.

关 键 词：锂渣 除泥 响应面法 旋流器 参数优化 

分 类 号：TH237[机械工程—机械制造及自动化]