吃奶揉捏奶头高潮视频丨黑人巨大亚洲一区二区久丨人善交video另类hd国产片丨亚洲 欧美变态 另类 综合丨一本到高清丨在线播放亚洲第一字幕丨久久婷婷五月综合97色丨久久亚洲网站丨亚洲精品无码一区二区三区久久久丨久久久久久久亚洲国产精品87丨成人性生交大片免费看中文视频丨女人十八毛片嫩草av丨新版天堂资源中文8在线丨日韩手机看片丨国产爆操视频丨超碰影院在线观看丨亚洲色图40p丨好看的黄色网址丨av日韩在线播放丨亚洲天堂一二三丨欧美大色丨都市激情自拍丨在线播放成人丨在线激情小视频丨特级无码毛片免费视频

Key Projects

Key Projects

Home > CORPORATE BRANDS > Key Projects

Chambishi Copper Mine in Zambia
DATE:15 Nov 2017 瀏覽次數(shù):1
+ . -

The project is in Copperbelt Province in the north of Zambia, and copper sources are mainly the main orebody, west orebody and southeast orebody. It went into production on July 28, 2003 (including graded tailings filling system). The west orebody has went into production at the end of 2012 (including paste filling system).

The design capacity of the main ore body is 6,500 t/d. Medium-length hole sublevel open stoping with backfilling and upward horizontal cut-and-fill stoping method, shaft development and full-automatic hoisting system are adopted. 10m3 side-bottom dumping car independently designed by ENFI is used for level haulage. The design capacity of the west orebody is 3,000 t/d, point-pillar backfilling and upward horizontal cut-and-fill stoping method are used. Combined trackless ramp and central auxiliary shaft development is used.

The design capacity of the concentrator is 6,500 t/d. Three-stage crushing with one closed circuit process, one-stage roughing, two-stage scavenging, one-stage cleaning and middlings regrinding process, and two-stage dewatering of thickening - filtering for copper concentrate are adopted.