根据冶金部、江西省科委和省冶金厅下达的任务,江西冶金学院于1978年研制出“CGX-Ⅰ型磁-光分选机”工业样机,并于同年7月纳入下垄钨矿大平选厂的生产流程,至今已在生产中运转四年多。1981年6月,下垄钨矿又制造了两台同类型的磁-光分选机。这样,三台磁-光分选机取代了生产流程上原有的打板式光选机,用来处理20-30毫米粒 According to the mandate issued by the Ministry of Metallurgy, Jiangxi Provincial Science and Technology Commission and the Provincial Metallurgical Department, Jiangxi Metallurgical Institute in 1978 developed a “CGX-Ⅰ type of magnetic - light sorting machine” industrial prototype, and in July the same year into the lower mound Daping The production process of the mill has been operating in production for more than four years. In June 1981, the second ridge of tungsten ore has created two of the same type of magnetic - light sorting machine. In this way, the three magnetic - light sorting machine to replace the production process on the original plate light selection machine, used to handle 20-30 mm grain