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在选別砂矿时,螺旋选矿机得到了广泛的应用。我国自1956年开始采用螺旋选矿机来选別砂錫矿,收效良好,現已普遍推广,并达到世界先进水平。大家知道,过去普遍認为砂錫原矿品位一般都很低,經螺旋选矿机粗选后,所得粗精矿中也只不过含有千分之几的锡,不合乎精选厂的要求(粗精矿合錫量应为10～15％)。而采用搖床富集,則可提高錫品位。
In the selection of sand, spiral concentrator has been widely used. Since 1956, China started to use spiral concentrator to separate sand and tin ore and has achieved good results. Now it has been widely promoted and has reached the world advanced level. We all know that in the past generally believed that the raw material of tin ore is generally very low. After the roughing by the spiral concentrator, the resulting crude concentrate contains only a few tenths of tin, which is not suitable for the selection of fine plants Mined tin content should be 10 ~ 15%). The use of shaker enrichment, you can raise the tin grade.