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个旧砂锡矿床,直露地表,无覆盖物,矿床厚度一般10至20米,最厚达50米以上,宜于露天开采。由于砂矿含泥量达60％至80％,呈细砂粒粘土质,易遭水流的浸蚀,转化为流浆状态,为水力开采和水力运输提供了有利条件。因此,一九五八年以来,水采水运工艺广泛应用于个旧砂锡矿的开采生产。根据砂矿床的赋存特点和矿石性质,在生产实践中,对水采水运工艺进行了不少科学研究和改革,取得了较好的经济效益。
Gejiasha tin deposit, straight to the surface, no cover, the thickness of the deposit is generally 10 to 20 meters, the thickest of 50 meters or more, suitable for open mining. Due to the sediment content of sand reaches 60% to 80%, it is fine sand and clay, which is easy to be eroded by water flow and transformed into flow state, which provides favorable conditions for hydraulic mining and hydraulic transportation. Therefore, since 1958, water mining and water transportation has been widely applied to the mining production of Gejiasha tin mine. According to the occurrence characteristics and ore properties of the sand deposit, many scientific researches and reforms have been carried out on the water harvesting and transportation technology in the production practice, which has achieved good economic benefits.