碳酸氢钠喷雾干燥过程的仿真研究
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摘要
以碳酸氢钠浆料的喷雾干燥过程为研究对象,应用Aspen Plus进行模拟计算,经喷雾干燥塔干燥后,所得苏打粉产品符合工业生产要求。通过灵敏度分析得出干燥空气的进口温度变化是影响喷雾干燥过程的主要因素。在此基础上,提出了在Matlab中建立以排风温度为主被控量、进风温度为副被控量的控制策略。并通过将单纯串级PID控制、复合模糊PID控制和带Smith预估器的复合模糊双回路串级控制的控制结果进行对比,得出带Smith预估器的复合模糊双回路串级控制系统超调小,进入稳定过程较快,控制品质好,是实现喷雾干燥温度控制的一种有效方法,适用于工业生产。
Taking the spray drying process of sodium bicarbonate slurry as the research object,Aspen Plus is used for the simulation calculation.After drying by the spray drying tower,the obtained sodium bicarbonate powder product can meet the industrial production requirements. Through sensitivity analysis,it is concluded that the change of inlet temperature of dry air is the main factor affecting the spray drying process.On this basis,a control strategy is established in Matlab with the exhaust air temperature as the main controlled quantity and the inlet air temperature as the secondary controlled quantity. By comparing the control results of simple cascade PID control,composite fuzzy PID control and compound fuzzy dual-loop cascade control with Smith predictor,it is shown that the composite fuzzy double-loop cascade control system with Smith predictor exhibits smaller adjustment,faster entry into the stabilization process and better control quality,which is an effective method to achieve spray drying temperature control and suitable for industrial production.
Taking the spray drying process of sodium bicarbonate slurry as the research object,Aspen Plus is used for the simulation calculation.After drying by the spray drying tower,the obtained sodium bicarbonate powder product can meet the industrial production requirements. Through sensitivity analysis,it is concluded that the change of inlet temperature of dry air is the main factor affecting the spray drying process.On this basis,a control strategy is established in Matlab with the exhaust air temperature as the main controlled quantity and the inlet air temperature as the secondary controlled quantity. By comparing the control results of simple cascade PID control,composite fuzzy PID control and compound fuzzy dual-loop cascade control with Smith predictor,it is shown that the composite fuzzy double-loop cascade control system with Smith predictor exhibits smaller adjustment,faster entry into the stabilization process and better control quality,which is an effective method to achieve spray drying temperature control and suitable for industrial production.
引文
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[11]张敏,张丽丽,王仁人,等.气流式喷雾干燥的现状及展望[J].现代制造技术与装备,2013,(4):5-7.
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[14]袁玉苹,潘海涛.阀门生产线控制系统的设计及仿真[J].职业,2012,(15):63-64.
[15]荆红莉,赵鹏,胡大伟.奶粉喷雾干燥模糊控制器的设计与仿真[J].国外电子测量技术,2017,36(4):91-93.
[16]朱明清,刘彤军.喷雾干燥过程分析及其PID控制仿真[J].自动化技术与应用,2013,32(12):35-38.
[17]余淼,丁廷发.氧化环境工艺中反硝化反应智能模糊控制器的模拟研究[J].现代化工,2018,38(2):206-209.
[18]许亮,袁泉,祝岩青,等.基于MATLAB的管式加热炉控制系统设计的研究[J].自动化与仪器仪表,2014,(11):23-24.
[19]吕宽州,陈素霞,黄全振.柔性机械臂的轨迹跟踪与振动模糊控制[J].工程设计学报,2015,(1):78-83.
[20]江宏玲,周成,戴新荣,等.基于DSP异步电动机矢量控制系统仿真与实验研究[J].电气传动,2017,47(6):14-18.
[2]廖传华,王永德,黄振仁.奶粉干燥设备的现状及其研究进展[J].粮油加工与食品机械,2003,(3):55-57.
[3]Deshmukh R,Wagh P,Naik J.Solvent evaporation and spray drying technique for micro-and nanospheres/particles preparation:Areview[J].Drying Technology,2016,34(15):1758-1772.
[4]王喜忠,于才渊.喷雾干燥[M].北京:化学工业出版社,2003.
[5]Maas S G,Schaldach G,Littringer E M,et al.The impact of spray drying outlet temperature on the particle morphology of mannitol[J].Powder Technology,2011,213(1):27-35.
[6]任有志,杨亚威,曾谦,等.BP神经网络PID控制器在聚合釜温控中的应用[J].现代化工,2016,36(2):165-167.
[7]罗贤海,付福琪.喷雾干燥塔模糊控制模型及仿真[J].中国陶瓷,2000,36(2):19-21.
[8]张勇.喷雾干燥过程复合模糊控制方法研究[D].哈尔滨:哈尔滨理工大学,2011.
[9]冯颜.麦芽糊精喷雾干燥塔控制系统的研究与设计[D].天津:天津职业技术师范大学,2014.
[10]孙兰义.化工流程模拟实训[M].北京:化学工业出版社,2012.
[11]张敏,张丽丽,王仁人,等.气流式喷雾干燥的现状及展望[J].现代制造技术与装备,2013,(4):5-7.
[12]陈敏恒,丛德滋.化工原理[M].北京:化学工业出版社,2006.
[13]Maas S G,Schaldach G,Littringer E M,et al.The impact of spray drying outlet temperature on the particle morphology of mannitol[J].Powder Technology,2011,213(1):27-35.
[14]袁玉苹,潘海涛.阀门生产线控制系统的设计及仿真[J].职业,2012,(15):63-64.
[15]荆红莉,赵鹏,胡大伟.奶粉喷雾干燥模糊控制器的设计与仿真[J].国外电子测量技术,2017,36(4):91-93.
[16]朱明清,刘彤军.喷雾干燥过程分析及其PID控制仿真[J].自动化技术与应用,2013,32(12):35-38.
[17]余淼,丁廷发.氧化环境工艺中反硝化反应智能模糊控制器的模拟研究[J].现代化工,2018,38(2):206-209.
[18]许亮,袁泉,祝岩青,等.基于MATLAB的管式加热炉控制系统设计的研究[J].自动化与仪器仪表,2014,(11):23-24.
[19]吕宽州,陈素霞,黄全振.柔性机械臂的轨迹跟踪与振动模糊控制[J].工程设计学报,2015,(1):78-83.
[20]江宏玲,周成,戴新荣,等.基于DSP异步电动机矢量控制系统仿真与实验研究[J].电气传动,2017,47(6):14-18.