午汲选矿厂所处理的铁矿石,主要是磁山铁矿的氧化矿,其次为符山铁矿石。所以,在午汲选厂的尾矿中含有大量的弱磁性铁矿物,一般含铁在14%以上。这些弱磁性铁矿物,采用一般的弱磁筒式磁选机是难以回收的。为了充分利用这部分资源,在毛主席革命路线的指引下,局中心试验室在北京矿冶研究院等兄弟单位的协助下,高举“鞍钢宪法”的光辉旗帜,充分发挥工人阶级的智慧,自力更 In the afternoon, the iron ore processed by the mines was mainly oxidized ore from the magnesian iron ore, followed by Fushan Iron Ore. Therefore, in the afternoon plant picks tailings contain large amounts of weak magnetic iron ore, iron content in general more than 14%. These weak magnetic iron minerals, using a general weak magnetic drum separator is difficult to recover. In order to make full use of this part of the resources, under the guidance of Chairman Mao’s revolutionary line, the laboratory of the Central Bureau of the Central Government, with the help of fraternal units such as the Beijing Mining and Metallurgical Research Institute, held the glorious banner of the Anshan Iron and Steel Constitution, giving full play to the working class’s wisdom and self- more