一、前言从前花岗矿是定在松峰选矿厂和堂屋敷选矿厂处理矿石,但是为了应付1984年以后的日元升值,便缩小了生产规模,于1986年关闭了堂屋敷选矿厂,选矿处理都集中在松峰选矿厂。现在,松峰选矿厂处理松峰矿、深泽矿和温川矿的混合矿石,生产作业运转顺利。温川矿于1987年开采,当初把原矿送到内之岱选矿厂。后来,由于内之岱矿床采完,于1991年关闭了内之岱选矿厂,现在温川矿 I. Foreword Once upon a time, the granite mine was set to deal with ores in Songfeng Concentrator and Tangwu Fu-dressing Plant. However, in order to cope with the appreciation of the yen after 1984, the scale of production was reduced. In 1986, Are concentrated in Songfeng concentrator. At present, Songfeng concentrator deals with the mixed ore of Songfeng Mine, Shenze Mine and Wenchuan Mine, and the operation of production is running smoothly. Wenchuan mine mining in 1987, originally sent to the mine ore Dai Dai. Later, due to the mining Dai Dai within the End, in 1991, the closure of Dai within the beneficiation plant, and now Wenchuan Mine