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一、绪言一九七九年由日铁矿业公司分离出来的釜石矿山,作为釜石矿山公司继续生产,1982年以后,再次缩小生产规模,作为新釜石矿山公司继续生产。现在,选厂一年处理铁矿石302400吨(含 Fe 35.35％)。铁铜矿石343800吨(含 Fe35.00％、Cu 0.600％),铜矿石139400吨(含 Cu 1.44％),铁选厂年生产238天,铜选厂266天,生产铁精矿300000吨(Fe
I. INTRODUCTION The Kamaishi Mine, which was separated by Nippon Mining Corporation in 1979, continued its production as Kamaishi Mining Company. After 1982, it reduced its production scale again and continued production as a new Kamaishi Mining Company. At present, the concentrator processes 303,200 tons of iron ore a year (including 35.35% Fe). 343800 tons of iron and copper ore (including Fe35.00% and Cu 0.600%), 139400 tons of copper ore (including Cu 1.44%), 238 tons of iron processing plant, 266 days of copper processing plant and 300000 tons of iron concentrate (Fe