Sand and tin industry indicators

At present, China has exploration and mining of tin ore sand are the property of Quaternary loose sediments modern type, its industrial targets as follows.
Sand and tin mine general industrial indicators reference table
project
Determination of grade by chemical analysis (tin in cassiterite)
Determination of cassiterite content by heavy sand scouring (stinite purity: Sn>60%)
Boundary grade minimum industrial grade minimum recoverable thickness (m)
Stone removal thickness (m)
Tin 0.02%
Tin 0.04%
0.5
2
锡石100~150g/m 2
锡石200~300g/m 3
0.5
2

Note: The above table summarizes the work fog index according to the actual reserves used by the sand-tin deposits that have been explored in China. In principle, it is applicable to the sand-tin deposits that are not treated by grinding, and the industry used for the geological exploration report used for the mine design. The indicators shall be formally determined by the competent industrial authorities at or above the provincial level according to the formulation procedures. Sometimes it is necessary to increase the stripping ratio, the width of the stone (planar), the size of the original oresite, and the percentage of the meter according to the specific conditions.

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