论文部分内容阅读
我矿是唐山地区响应毛主席“开发矿业”的伟大号召,自筹建立的半机械化采矿、单一磁选,采、选联合的小型矿山。矿石类型为沉积变质“似鞍山式”磁铁石英岩。矿石成份以磁铁矿为主,脉石矿物以石英长石和辉石为主,矿石结构和构造以条带状、片麻状为主。矿石氧化程度弱,平均磁性率(TFe/FeO)为2.13。原矿品位平均全铁含量32%左右,可熔铁29%以下。设计能力为日处理原矿五百吨,金属回收率80%,精矿品位60%。1970年9月正式动土兴建,于1972年“五·一”建成投产。现有职工653名,其中选厂103名。
My mine is a small mine in Tangshan that responded to the great call of Chairman Mao for “mining development” and built a semi-mechanized mining, single magnetic separation, mining and election combined mine. The ore type is sedimentary metamorphic “Anshan-style” magnetite quartzite. Magnetite ore-based composition, gangue minerals to quartz feldspar and pyroxenes, ore structure and structure to strip, gneiss dominated. The degree of ore oxidation is weak, and the average magnetic fraction (TFe / FeO) is 2.13. The ore grade average iron content around 32%, meltable iron 29%. Design capacity for processing 500 tons of ore, metal recovery rate of 80%, concentrate grade 60%. September 1970 officially started construction, in 1972, “May 1” completed and put into production. 653 employees, of which 103 were selected plants.