Hydrocyclone classification of particles in the micron range

作者：Endres E^*; Dueck J; Neesse Th

来源：Minerals Engineering, 2012, 31: 42-45.

DOI：10.1016/j.mineng.2011.10.013

• Hydrocyclone classification
• Micron range
• Closed circuit
• Accumulation box

In nanotechnology, classification in the micron and submicron range is of growing interest. Usually, hydrocyclones do not reach these low cut sizes. This study presents a special batch processing technique using a 20 mm hydrocyclone for classification in the micron range. This hydrocyclone was equipped with a special underflow box that stored the coarse particles. The overflow was recirculated to the hydrocyclone entrance. A set of experiments was conducted using this batch hydrocyclone technology. Quartz with particle size %26lt;20 mu m and a SiC/Si residue with size %26lt;10 mu m was fed to the hydrocyclone, which operated in a closed circuit for 120 min. The results showed that the hydrocyclone preferably separates the particles that are %26gt;1 mu m in the first 60 min. Later, the particles in the submicron range were increasingly discharged in the underflow. A simulation for the classification in a batch hydrocyclone with a closed circuit and underflow box is presented.

• 出版日期2012-5