摘要
连续式磁性颗粒去除器,是利用稀土永磁Nd—Fe—B为材质,处理合磁性颗粒废水的装置。其主要结构由动力传递、磁块组合体、磁条移动、设备本体、进出口流道及分离部件等组成。该文阐述了永磁分离机理,并通过磁性悬浮颗粒的理论驱进速度和最小捕获粒径的求解,探讨了提高磁性颗粒去除器捕获率的方法。实践证明,该装置用于冶金轧钢废水处理中,能代替传统的轧钢废水三级处理工艺,节约投资成本70％,占地减少85％,运行费用亦大幅下降,且无需专门的污泥脱水装置。
Continuous magnetic particles separator is an equipment using rare-earth permanent magnet Nd-Fe-B as material to dispose wastewater containing magnetic particles. It composed of power transmission, magnet block array, magnet bar transit, equipment frame, entrance & exit channel and separator, etc. By calculating theoretical driving speed and minimal capture diameter of the magnetic suspension particles, thus the mechanism of permanent magnet separation and the method of magnetic particles separator's capture efficiency improvement, were discussed to wastewater disposal in steel rolling. This equipment can take the place of traditional three-phase technique of wastewater disposal. It can save 70% investment cost and 85% land area, and largely reduce operation cost, without any special mud dehydration equipment. It has notable profits on both economy and environment.
出处
《上海环境科学》
CAS
CSCD
1998年第12期29-30,35,共3页
Shanghai Environmental Sciences
关键词
轧钢废水
废水处理
稀土永磁
磁性颗粒去除器
应用
Wastewater in steel rolling Wastewater disposal Rare-earth permanent magnet Magnetic particles separator Application
