日本久久久久,美女久久er2视频,久尤物操久,日韩精品国语中文字幕,伊人久久中文成人,2020有码,九九热一二三区,不卡精品在线观看,黄色片美女99三级

Mine Engineering

Mine Engineering

Home > SERVICES > Engineering Solution > Mine Engineering

WISCO Jinshandian Iron Ore Mine Project
DATE:15 Nov 2017 瀏覽次數(shù):1
+ . -

Jinshandian Iron Ore Mine, located in Jinshandian Town, Daye City, Hubei Province, is under Wuhan Iron & Steel Group Minerals Co., Ltd. and is among the four ferrous metallurgical mines that are difficult in mining. It consists of two mining area: Zhangfushan and Yuhuasi.

Pillarless sublevel caving method is adopted. The two mining areas of Zhangfushan and Yuhuasi are integrated and the primary production capacity of mine 1.5 million t/a is extended to 3 million t/a.

Main shaft and auxiliary shaft development is adopted for the mine. The depth of the main shaft is 924 m, and it was the deepest shaft at ferrous metallurgical mines. The application of one-time construction and equipping by stages reduced the effect on mine production in the transition from one stage to another. It is the first time to use double skip hoisting at ferrous metallurgical mines and the hoisting capacity is 3.5 million t/a. The modification and expansion project was put into production in 2007 with good operation.

太白县| 宁强县| 拉孜县| 惠来县| 西贡区| 周至县| 乌兰察布市| 门头沟区| 康平县| 鞍山市| 临桂县| 北海市| 横峰县| 苏尼特右旗| 中卫市| 荆门市| 泰州市| 交口县| 通渭县| 新巴尔虎右旗| 昆明市| 保德县| 南澳县| 鸡西市| 芦山县| 平罗县| 教育| 大埔县| 临汾市| 瓦房店市| 景泰县| 盐边县| 娄烦县| 蒙山县| 万宁市| 襄垣县| 和林格尔县| 扶绥县| 应用必备| 出国| 微博|