加压浸出釜搅拌流场及内附件强度分析

Analysis of Flow Fields and Internal Attachments in Pressure Leaching Reactor

加压浸出釜是湿法冶金行业的重要设备,釜内的流场状态和内附件强度是设备使用的关键.采用计算流体动力学(CFD)方法分析了单个隔舱内流场状态及卧式竖轴搅拌效果,并计算作用于隔板与挡板搅拌冲力.以搅拌冲力和液体静压力作为载荷条件,使用有限元方法计算隔板与挡板的应力及变形分布,从而确定釜内附件结构和尺寸,为加压釜的设计、制造和使用提供了理论依据.

Pressure leaching reactor is the key equipment employed in hydrometallurgical industry.The flow field and attachment strength are important for the application of equipment.The flow field in the compartments and the stirring effect of the vertical-axis agitator in horizontal vessel were studied by the computational fluid dynamics（CFD） method,and the agitation momentum loaded on partition wall and baffle was obtained.Taking the agitation momentum and liquid static pressure as the loaded condition,the stress intensity and deformation state of partition wall and baffle were analyzed by finite element method（FEM）,then the structure and size of attachment were determined.In this paper,a theoretical basis for the design,manufacture and application of pressure leaching reactor was suggested.