Indonesia tin ore quarry
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The tin is a silvery white metal, with strong luster, and the relative density of 7.0 low melting point (230 ° C), hardness 3.75, soft and ductile. Tin content in the Earth’s crust is only 2 × 10 ^ -6 ~~ 3 × 10 ^ -6. Tin belonging to the pro-copper group, but has a pro-gender characteristics of the oxygen and pro-sulfur in the upper part of the lithosphere. Tin and sulfur work the formation of two compounds: a sulfide of tin disulfide, tin, has a strong volatile at high temperatures. Tin and oxygen can also be combined to produce a tin oxide and tin oxide. Although tin has two valence states of bivalent and quadrivalent, but under natural conditions, more stable tetravalent compounds, especially tin oxide (SnO2), it is one of the most stable compounds in the crust.
Australia Cleveland tin jointly developing
Mine sulfide ore deposits, the ore body toward the long-367m, the average thickness of 7.6m, dip 80 ° to 90 °. Mine Dan Zhongxi average grade of 0.92%, the average copper grade of 0.4%. The upper and lower plate surrounding rock and ore are extremely strong.
The mine adit – ramp jointly developing above the 1125m level adit – chute to open up the main adit is located in the 1125m level, the main adit section was 4.2 × 4.2m. Below the 1125m level, the blind ramps development. Ore and waste rock to the main adit ramps shipped pit truck through, and then shipped out to the surface from the main adit. Blind ramp section of 4.8 x 4.8m, the curve segment cross-section of 5.5 × 4.8m2. Blind ramp curvature radius of 16.7m. Blind slope the road surface with fine gravel, laying a heavy medium Marquee tailings and a small amount of clay. Blind ramp slope between 7 and 9 was 11.1%. Increased to 14.3% below the sub-section 9. To reduce the blind ramp length. Mine annual production of ore capacity of 250,000 tons.
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