【作者】 乔宁宁；

【导师】 申德超；

【作者基本信息】 东北农业大学 ， 农业机械化工程， 2007， 硕士

【摘要】 混合调质工序是决定膨化产品质量及生产效率的关键环节。但是目前我们研制的YJP100T／D型挤压蒸煮机的调质系统非常不完善，采用人工调质的方法。这种方法很难保证物料的混合均匀度，人工影响比较显著，直接影响膨化产品的质量和生产效率。而且，人工调质劳动强度大，生产效率低，很难适应大批量生产的需要。本课题是针对YJP100T／D型挤压蒸煮机的实际需要，设计研究开发的一套混合调质设备。论文主要包括以下几项内容：(1)本文设计研究完成了挤压蒸煮机辅助设备——调质器的设计制造，并对整机进行了安装与调试。(2)本文选取调质器的主轴转速和叶片安装角为试验因素，物料混合均匀度、物料流量、物料残留量、功耗和驻留时间为考察指标，采用两因素五水平二次旋转正交组合试验设计安排试验，通过Reda软件包对试验结果进行了处理分析，研究分析了调质器的工作性能参数。分别得出了物料混合均匀度、物料流量、功耗、物料残留量和驻留时间的回归方程，经检验方程显著。并对回归方程进行了单因素分析，得出了调质器混合调质的最优参数。以混合均匀度为主要考查指标，以物料流量、功耗、物料残留量和驻留时间为次要指标。最终最佳混合调质参数的范围为：调质器主轴转速为373r／min～477r／min，叶片安装角为37°～48.5°，并且对最优参数进行了试验验证。结果表明在最优参数下，调质器可以达到混合调质性能。(3)针对本文设计的调质器还存在一些问题，进一步提出了自动控制系统方案。更多还原

【Abstract】 Conditioning procedure is the key step that determines the quality of extruded productionand productivity .However, the conditioning equipment of the YJP100t/d extruder is unperfect.Itadopts manpower to meet the producing demand.This kind of method is very difficult to insuremixing homogeneity, and will be influenced by man observably. This will influence the qualityof products and production efficiency directly. Moreover, because the manual work is very greatand the production efficiency is low, it is very difficult to meet the needs of industrialization.Aconditioner for the YJP100t/d extruder was designed in this paper.The paper mainly includes the following several contents:Firstly, the conditioner of extruder was designed, studied, finished, installed and debuggedin this study.Secondly, the performance of conditioner was discussed. The study used the two factors andfive levels two orthogonal rotation mix design tests, using regression analysis to explore therelationship between conditioning system parameters and mixing homogeneity, flux of material,power consumption, the rudimental material in conditioner and resorting time. The optimalconditioning parameters were determined.Regarding mixing homogeneity as the main index, flux of material,current, the rudimentalmaterial in conditioner and resorting time as the secondary indexes, the best parameters are:rotational speed 373 r/min—477 r/min; paddle angle 37°～48.5°. Some work was done inorder to verify the feasibility and rationality of the optimized technics.Finally, some projects and suggestions of automatic control system were provided to solvesome existing problems of conditioner in the last part.更多还原