摘要
为了准确掌握重介质旋流器各混料成分之间的配比关系,明确不同配比对旋流器产出质量和产量的影响,实现分选效果的最优化.分析了现有旋流器优化和混料配比研究的不足,探讨了采用混料设计方法解决上述问题的可行性和局限性。通过设计混料试验,运行试验得到试验结果,建立混料成分与各响应变量的数学模型,分析模型的有效性,以各响应变量的同时最佳为综合约束条件进行响应优化,通过求解苛求函数复合合意度最高时的各参数值,确定各混料成分的最优配比,并通过T假设检验验证试验结果用于生产的有效性。结合某选煤厂旋流器生产运行情况,明确旋流器中块煤、悬浮液和煤泥各混料的水平要求,采用极端顶点法设计混料试验并运行试验,建立三因子与精煤灰分和产率两个响应变量之间的回归模型,分析两响应变量同时最佳条件下最优的混料配比,得到三混料成分配比依次为15.5%、59.8%、24.7%,依据上述配比进行试生产,并采用T检验验证试验结果是有效的,从而为选煤厂高效生产和精确控制提供有效的支撑,也为后期实现自动化控制提供了可能。
In order to know accurately the ratio of components of mixing material of dense medium cy-clone , and to understand the influence of different ratio to the output of dense medium cyclone and to opti -mize the separation effect , the limitations of the existing research on cyclone optimization and ratio of mix-ing material are analyzed and the feasibility and problem of using mixture design to achieve the above goals is discussed .By designing experiment of mixture , and running the experiment to get the result , the mathe-matical model of response variables and components of mixing material is fitted and analyzed and the effec-tiveness of the model analyzed .And the response is optimized with all response variables optimal .Through solving the parameters of the composite purpose for most demanding function value , multi-objective optimi-zation of mixture design is realized and the optimal ratio of components of mixing material is determined . The effectiveness of the experiment is tested by practical production effect .Based on the requirement of lump coal , suspension and slime of dense medium cyclone in a coal preparation plant , mixture experiment is designed and run through extreme vertex design .The mathematical model of two response variables , which are concentrate ash and yield , and three factors which are lump coal , suspension and slime , is es-tablished to analyze the optimal ratio of components of mixing material under the condition that two objec -tives are achieved.The ratio of components of mixing material is 15.5%, 59.8%and 24.7%.The effec-tiveness is tested by T-testing.The experiment and analysis provide effective support to the efficient pro-duction and accurate control of coal preparation plant and can help the realization of automatic control .
出处
《工业工程》
2016年第3期130-137,共8页
Industrial Engineering Journal
关键词
混料设计
重介质旋流器
多目标优化
混料配比
假设检验
mixture design
dense medium cyclone
multi-objective optimization
ratio of mixing materi-al
hypothesis testing
