Apr 02 2018 · As can be seen no one chooses to exploit an open or underground pit but the conditions of nature that concentrate the metals in one way or another A “Disseminated” deposit such as a Copper porphyry can not be exploited underground just as a Lead vein galena can not be exploited in the open...As a leading global manufacturer of crushing equipment, milling equipment,dressing equipment,drying equipment and briquette equipment etc. we offer advanced, rational solutions for any size-reduction requirements, including quarry, aggregate, grinding production and complete plant plan.Get Price
Capacity: 0.18-7 (m ³/min)
Suitable Materials: Copper, zinc, lead, nickel, gold and other non-ferrous metals, ferrous and non-metal.
Major Equipment: Jaw crusher, ball mill, sprial classifier, flotation machine, concentrator machine and dryer machine
Warranty: 1 Year
Feeding Size: 200-350mm
Discharging Size: 25-35mm
Production Capacity: 5-150TPH
Production Capacity: 500TPH
Application Field: Hydropower, building material, highway, city construction, metallurgy, coal mining and so on.etc.
Applied Materials: Granite, basalt, bank gravel, bauxite, cement clinker, quartz silicon carbide,limestone, river stone, etc.
Feeding Granularity: ≤20-≤25mm
Applied Materials: Limestone, calcite, barite, dolomite, potassium feldspar, marble, talcum, gypsum, kaolin, bentonite, medical stone, rock phosphate, manganese ore, iron ore, copper ore, gold ore,quartz, active carbon, carbon black, ceramic, coal, etc.
Applicable Range: Cement, silicate product, new building material, refractory material, fertilizer, black and non-ferrous metal ore dressing and glass ceramics production industry, etc.
Feeding Size: 300-700mm
Production Capacity: 50-250TPH
Applied Materials: Iron ore, copper ore, gold ore, river gravel, limestone, granite, basalt, diabase, andesite, etc.
Related Equipments: two PE600×900 jaw crushers, two impact crushers, two cone crushers, two sand makers and three circular vibrating screens....
Raw Material: iron ore Crushing Capacity: 300t/h Crushing Purpose: to turn iron ores with size less than 300mm into finished ores with size less than 5mm.
Apr 02 2018 · As can be seen no one chooses to exploit an open or underground pit but the conditions of nature that concentrate the metals in one way or another A “Disseminated” deposit such as a Copper porphyry can not be exploited underground just as a Lead vein galena can not be exploited in the openGet Price
Aug 22 2017 · There’s an obvious distinction between open pit mines and underground mines that leads to the main differences from the miners’ perspectives Open pit mines allow for heavy machinery and workers to do their jobs in the open and usually with more maneuverabilityGet Price
Vietnam currently produces zinc nickel bauxite coal and manganese and with the exception of coal the majority of current mining projects in the country are small or medium in scope The Vietnamese mining industry is dominated by the stateowned Vietnam Coal and Minerals Industries Corporation Vinacomin and has been preparing for aGet Price
Oct 21 2017 · Opencut is also a good method for gold and copper Underground mining Underground mining occurs underground through the creation of tunnels These tunnels go deep into the mineral seam This can be in excess of hundreds of metres Tunnels are necessary to move equipment into the mineral zone Coal is the largest portion of underground miningGet Price
650000 tons Aluminayear open cut mine Vimico Sin Quyen and Ta Phoi mines Lao Cai open cut mine Expansion plan is in progress Viet Trung Mining and Metallurgy Lao Cai iron ore open cut mine Vinaapaco Lao Cai Phosphate rock mining and fertilizer production open cut mine Phuoc Son Gold Quang Nam Under restructuring underground mineGet Price
The historic Berkeley mine in Butte Montana where the Berkeley Pit started in 1955 In 1955 mining in Butte saw the light literally Excavation on what would become the Berkeley Pit named from one of several nearby historic underground mines that the Pit would later engulf began that year in a transition from underground to open pit miningGet Price
Oct 27 2018 · In open pit mining the mineral deposits are at lesser depth making the mining process more economic Upto certain depth open pit mining is economic but after that underground mining is done In this method there is no issue of ventilation and the chances of accidents is reduced as compared to underground cases the production is more as compared to UG minesGet Price
April 35 2012 US EPA Hardrock Mining Conference 2012 Open Pit 400 m 3700 m 2000 m 7 April 35 2012 US EPA Hardrock Mining Conference 2012 Underground Mines Premining water table 1600 m amsl Current water table 1100 m amsl with a drawdown of 500 m 8Get Price
Nov 25 2019 · The Morenci mine in Arizona is the largest copper mine in North America Operated by FreeportMcMoRan the mine is jointly owned by the company 72 and affiliates of the Sumitomo Corporation 28 Morenci operations began in 1872 underground mining began in 1881 and openpit mining began in 1937 Get Price