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国外选别重金属矿石和砂矿时,广泛应用矿物资源有限公司制造的理查特螺旋选矿机和圆锥选矿机。该公司制造四种槽体断面形状(决定螺旋选矿机的应用范围和适宜的条件)不同的螺旋选矿机:型号-2 A,3 B,3和6。例如,型号—2选矿机,常被推荐用于选别浓度较稀的矿浆(固体浓度15～35％)。而型号—3选矿机选别的矿浆浓度要高一些(固体浓度25～45％)。型号—6选矿机的特点是在选别比重差较小的物料时,具有很高的选择性,但其生产率则较型号—
Foreign selection of heavy metal ores and sand, the wider use of Mineral Resources Co., Ltd. made Richards spiral concentrator and cone concentrator. The company manufactures four different spiral concentrator models (section 2 A, 3 B, 3, and 6) with different cross-sectional shapes of the tank (determining the application of the spiral concentrator and suitable conditions). For example, Model-2 concentrator is often recommended for the separation of lean slurry (solid concentration 15-35%). The type-3 concentrator selected pulp concentration is higher (solid concentration 25 ~ 45%). Model -6 concentrator is characterized by a small selection of materials in the proportion of small, highly selective, but its productivity is better than the model -