D11型双螺杆高剪切湿法制粒机制粒性能模拟与评价  

Simulation and evaluation of granulation performance of D11 twin screw high shear wet granulator

作　　者：胡安[1] 毛元瑞 周国发[1] HU An;MAO Yuanrui;ZHOU Guofa(School of Resources&Environmental,Nanchang University,Nanchang 330031,China)

机构地区：[1]南昌大学资源与环境学院,南昌330031

出　　处：《中国塑料》2024年第8期106-112,共7页China Plastics

基　　金：宜春市企业重大技术“揭榜挂帅”项目(ZQT20230522001)。

摘　　要：基于双螺杆高剪切湿法制粒工艺与装备协同集成数字化虚拟样机仿真方法,模拟评价了D11小型双螺杆高剪切湿法制粒机的结构特征与螺杆尺度对制粒性能和关键质量属性的影响,构建了终点制粒关键质量属性-结构特征-螺杆尺度的协同耦合演化规律。研究结果表明:本文的D11小型双螺杆高剪切湿法制粒机能实现750~936μm颗粒的制造,制粒收率最高可达到88.84%。特征粒径d10、d50、d90、制粒收率与螺杆螺距预压缩比、螺杆尺度呈现正关联协同演化规律,而制粒粒径的一致性与螺杆螺距预压缩比、螺杆尺度呈现负关联协同演化规律。将螺杆螺距预压缩比提高至3.67,可使最大制粒粒径增至936μm,粒径跨度降至0.49。提高螺杆螺距预压缩比,可提升D11小型双螺杆高剪切湿法制粒机的制粒性能和终点制粒的一致性,弥补螺杆尺度减小诱发其制粒特性劣化。Based on the digital virtual prototype simulation method of collaborative integration of twin screw high shear wet granulation process and equipment,influence of the structural characteristics and screw scale on the granulation per⁃formance and key quality attributes were simulated and evaluated for D11 small twin screw high shear wet granulator,and the synergistic coupling evolution law was constructed among the key quality attributes of endpoint granulation,struc⁃tural features,screw scale.The research results indicated that the D11 small twin screw high shear wet granulator in this article can achieve the manufacturing of particle with diameter size of 750~936μm,which can achieve the maximum gran⁃ulation yield with 88.84%.Moreover,the relation between the diameter sizes d10,d50,d90,granulation yield and screw pitch pre compression ratio,screw scale exhibit synergistic evolution law of a positive correlation,while the rela⁃tion between the consistency of granulation particle size and screw pitch pre compression ratio and screw scale exhibits the synergistic evolution law of a negative correlation.Increasing the pre compression ratio of the screw pitch to 3.67 can increase the maximum particle size to 936μm,Particle size span reduced to 0.49.Increasing the pre compression ratio of screw pitch can improve the granulation performance and consistency of endpoint granulation for D11 small twin screw high shear wet granulator,which can compensate for the deterioration of granulation characteristics caused by the reduc⁃tion of screw scale.

关 键 词：双螺杆高剪切湿法制粒机 制粒性能 螺杆尺度 结构 模拟 

分 类 号：TQ320.663[化学工程—合成树脂塑料工业]