本文为用水力旋流器进行旧砂再生的试验总结。文中对水力旋流器用于旧砂再生的工作原理作了探讨,阐述了试验情况,并列出各参数对再生效果影响的试验数据。此外,还介绍了水力旋流器——水力分级器联合再生试验结果及水力旋流器用于旧砂再生的几种配备方案。通过这一试验,证实了水力旋流器用于旧砂再生的可能性,而且具 This paper summarizes the experiment of regeneration of old sand by hydrocyclone. In this paper, the working principle of hydrocyclone for the regeneration of old sand was discussed. The experimental conditions were described and the experimental data of the effect of each parameter on the regeneration effect were listed. In addition, the hydrocyclone - hydraulic classifier combined regeneration test results and hydrocyclones used for reclamation of old sand with several programs. Through this test, confirmed the possibility of hydrocyclone for the regeneration of the old sand, but also with