本文叙述了墨西哥科阿韦拉的阿赛莱罗集团下属诺尔特矿物公司海尔库莱铁矿采用称为铁轮的永磁高梯度磁选机从尾矿中回收铁矿石。半工业性试验和工业性试验为该选矿厂的扩建规划提供了依据,1995年后期开始着手扩建工作,扩建后的选厂,其处理矿石能力为385t/h。两个尾矿池中贮存了600万吨浮选尾矿,尾矿中大多数为赤铁矿,平均含铁量为50%,粒度很细分别为—200目占93%和—500目占72%。通过比较各种回收工艺试验情况,现选定永磁高梯度磁选机来生产浮选前的预选精矿。该机利用磁力线会聚型介质产生高梯度磁场来捕收赤铁矿。铁轮永磁高 This article describes the reclamation of iron ore from the tailings using the permanent magnetic high gradient magnetic separator, called iron wheel, at the Nolte Minerals Company, a subsidiary of the Armentale Group of Coahuila, Mexico. Semi-industrial tests and industrial tests provided the basis for the expansion planning of the beneficiation plant. In late 1995, expansion work was started and the expanded plant was selected to process ore with capacity of 385 t / h. The two tailings ponds store 6 million tons of flotation tailings, most of which are hematite, with an average iron content of 50% and a fine size of -200 mesh, accounting for 93% and -500 mesh, respectively 72%. By comparing a variety of recovery test conditions, the selection of permanent magnet high gradient magnetic separator to produce pre-election concentrate before flotation. The machine uses magnetic field convergent medium to produce high gradient magnetic field to capture hematite. Iron permanent magnet high