基于ANSYS的刮刀卸料离心机进料管优化设计

Optimization Design of Feeding Tube of Scraper Discharge Centrifuge Based on ANSYS

为减少平板上悬式刮刀卸料离心机进料管中悬浮液流动时出现的涡流和二次环流等能量损耗,基于ANSYS进行了进料管的优化设计。利用ANSYS进行了离心机传统进料管内悬浮液的流动模拟,找出进料管中悬浮液的最大速度处;在不改变原空间位置和整体尺寸基础上,进行了3种类型的进料管结构设计和悬浮液流场的三维建模;完成了流场模拟分析和对比。分析结果表明,所设计的3种新型进料管的能量耗损要明显小于传统进料管,且悬浮液中的固体颗粒在转鼓内壁处分布较广,不仅保护了离心机的生产安全,还提高了离心机的生产能力。

To reduce the energy dissipation in eddy current and secondary circulation,appearing in the suspension flow in feeding tube of the overhead scraper discharge centrifuge,this paper uses ANSYS software to optimize the design of the feeding tube. The flow of suspension in the feeding tube of the traditional centrifuge is simulated,and the place where the maximum velocity of the suspension is at in the feeding tube is foundout,then three types of feeding tube structures are designed,the three-dimensional model of the suspension flow field is established and the simulation analysis and the comparison of the flow field are done. The analysis results show that the energy dissipation in new three feeding tube is obviously less than that in the traditional feeding tube,and the solid particles in the suspension are distributed widely on the inner wall of the drum,thus not only ensuring the centrifuge operation safety,but also improving its production capacity.