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orange ball mill in cape towns

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GamsbergSkorpion Integrated Project Mining Technology ...

The integrated project is proposed to be a stage wise development estimated to cost $782m, which includes $630m to develop the Gamsberg zinc mine along with a 3.62 million tonne a year capacity concentrator plant. The remaining amount will be used to develop a 136,078tpa integrated roaster with acid plant and calcine leach section to the refinery at the existing Skorpion mine, to enable it to produce high grade zinc from Gamsbergs zinc sulphide ore. The conversion will extend the refinerys life by at least ten years and enable it to co treat sulphide concentrates. The first phase development is expected to have a lifespan of 13 years. It is proposed to mine approximately 12.7Mt of contained metal, while the balance ore will be mined during later phases. The mineral resources at the zinc mine are contained within two orebodies, namely the North and South pits. The North pit, with an estimated 50 year life of mine, will supply the ore for the first phase of the project, while...

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The Gamsberg mine is located in the Northern Cape Province of South Africa, just south of the N14 National Road connecting Upington to Springbok, and 20km east of the existing Black Mountain Mine and the town of Aggeneys. The project falls within the northern Aggeneys terrain of the Bushmanland Terrane group. The orebody at Gamsberg is hosted by iron sulphide rich pelitic rocks and iron formation, and the economic mineralisation comprises sphalerite and minor galena . As of November 2014, the Gamsberg mine was estimated to contain mineral resources of 194Mt.

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Conventional open pit mining, including drilling and blasting followed by loading and hauling, will be used at the Gamsberg mine. The mined ore will be transported by haul trucks to the 9.07Mtpa primary crusherlocated adjacent to the open pit. The crushed ore will be stockpiled before conveying through a reclaim conveyor to the milling circuit that will consist of a semi autogenous grinding mill, a ball mill, and a cyclone unit to reduce the ore material to a size appropriate for flotation. The flotation process involves mixing the milled ore with water in a series of agitating tanks and adding chemicals to separate hydrophobic and hydrophilic minerals. Various combinations of flotation cells in series will be utilised to produce a concentrated stream of valuable mineral particles, called the concentrate. Three flotation modules carbon floatation, lead floatation and zinc flotation, with a capacity to process approximately 3.04Mtpa of ore will...

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Power supply for the Gamsberg project will be provided from the Aggeneys substation, located approximately 15km to the mine site, through a new 28km long power line. A 38km long surface pipeline will be constructed from the existing Pella abstraction point along the Orange River and will be extended in a southerly direction towards the town of Aggeneys, to supply the required water for the project.

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Environmental Resources Management Southern Africa has been appointed to undertake the environmental and social impact assessment for the construction and operation of the new Gamsberg zinc mine and associated infrastructure. Tata Consulting Engineer and Associates conducted the definite feasibility study for the mine.

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