由邯郸冶金矿山管理局午汲选矿厂、中心试验室和北京矿冶研究院等单位组成的三结合试验组以及在河北矿冶学院师生共同努力下,完成了以强磁选一螺旋溜槽和螺旋溜槽两种流程从午汲选矿厂尾矿中回收铁的工业试验。 这次工业试验是在党的一元化领导下进行的。坚持党的基本路线,认真学习无产阶级专政理论, By the Handan Metallurgical Mining Administration afternoon miner’s digesters, central laboratory and Beijing Institute of Mining and Metallurgy and other units of the three combined test group and the joint efforts of teachers and students in Hebei Institute of Mining and Metallurgy, completed a strong magnetic separation of a spiral chute and Spiral chute two kinds of processes from the afternoon mill ore tailings recovery iron industrial test. This industrial experiment was conducted under the centralized leadership of the party. Uphold the party’s basic line, conscientiously study the theory of dictatorship of the proletariat,