文献类型：期刊文献

中文题名：桨形螺杆元件开发及其柔性混合能力分析

英文题名：Development of paddle screw elements and analysis of their flexible mixing capability

作者：王彦杰[1,2];褚岳健[1];杨文明[1];朱惠豪[1];王玉[1];李果[1];谢林生[1]

机构：[1]华东理工大学机械与动力工程学院,上海200237;[2]山西江阳化工有限公司,山西太原030003

年份：2026

卷号：77

期号：4

起止页码：1812

中文期刊名：化工学报

外文期刊名：CIESC Journal

收录：;EI(收录号：20262921108378);北大核心:【北大核心2023】；

语种：中文

中文关键词：桨形元件;双螺杆挤出机;柔性混合;数值模拟;含能材料

外文关键词：paddle elements;twin-screw extruder;flexible blending;numerical simulation;energetic materials

摘要：针对含能材料开发了一种桨形螺杆元件,通过有限元数值仿真方法对不同螺杆元件的剪切分散能力及输送分布效果进行了比较,并结合晶体物料破碎行为研究了不同螺杆元件对固体颗粒的破碎效果,以此分析适用于特殊场景的双螺杆连续混合工艺的柔性混合能力。结果表明:开发的桨形元件对物料的剪切作用较弱,并且能够实现高通量的物料体积交换,其具备与其他螺杆元件相当的分布混合能力;在相同工艺条件下,输送-啮合块元件组合型螺杆制备的样品晶体颗粒粒径为单峰分布,输送-桨形元件组合型螺杆制备的样品晶体颗粒粒径为双峰分布,表明桨形螺杆元件对物料的混合作用较为柔和,物料验证性实验则证明了桨形螺杆元件能够实现混合均匀性,在针对具有刺激敏感性的含能材料加工领域具有应用潜力。
This study developed a paddle screw element for energetic materials and compared the shear dispersion capabilities and conveying distribution effects of different screw elements using finite element numerical simulation methods.The fragmentation behavior of crystal particles was also investigated to analyze the particle breakage effects induced by different screw elements,thereby evaluating the flexible mixing capability of twin-screw continuous mixing processes for specialized applications.The results show that the developed paddle element exhibits weak shearing action on materials and achieves high-throughput material volume exchange,possessing a distribution mixing capability comparable to other screw elements.Under identical processing conditions,samples prepared using a combination of conveying-meshing block elements exhibited a unimodal distribution of crystal particle sizes,whereas those produced with conveying-paddle element combinations showed a bimodal distribution.This suggests that the mixing effect of the paddle screw element was relatively gentle.Validation experiments further confirmed the ability of paddle screw elements to achieve uniform mixing and the potential application in processing stimulus-sensitive energetic materials.