啮合同向双螺杆挤出机中新型螺杆元件S型元件与捏合块元件的性能对比研究  

Study on the Properties of a New Screw Element——S Element and Kneading Blocks

作　　者：梁畅[1] 马秀清[1] 耿孝正[1] 

机构地区：[1]北京化工大学机电工程学院,北京100029

出　　处：《中国塑料》2002年第11期78-84,共7页China Plastics

摘　　要：应用FEM模拟计算了啮合同向双螺杆挤出机正反向螺纹组合的新型螺杆元件S型元件与捏合块元件的流场 ,考查了两种元件流场的特性 ,对比了两种元件流场的挤出特性、分散和分布混合能力。得出在相同的操作条件下 ,相同外径的S型元件和捏合盘元件相比具有相当的分散混合能力。Numerical simulations on the flow fields of S element and kneading blocks, composed of both positive and negative elements, are conducted by means of FEM. Properties of two fields, especially output, dispersive and distributive mixing ability are studied and compared. It can be concluded that when the two elements have the same diameter and are operated under the same conditions, S element has the same dispersive mixing ability as the kneading blocks, better distributive mixing ability and larger output than kneading blocks.

关 键 词：啮合同向双螺杆挤出机 螺杆元件 S型元件 捏合块元件 性能对比研究 流场 

分 类 号：TQ320.6[化学工程—合成树脂塑料工业]