含钽矿石的选别实践表明,用重选法选别时主要是得到富钽精矿。在多数情况下,重选的最后阶段是在摇床上完成的。这种作业的工作效率决定于很多因素,其中包括摇床给矿的矿物组成。给入摇床中的和钽比重接近的重矿物(石榴石、黄玉等)会降低选矿工艺指标。在摇床上,这种重矿物的大量循环会引起微粒钽铁矿一铌铁矿的“屏蔽”,而增大钽的损失。 Selection of tantalum ore practice shows that the use of re-election method is mainly to get rich tantalum concentrate. In most cases, the final stage of the re-election is done on the shaker. The work efficiency of such a job depends on many factors, including the mineral composition of the shaker to the mine. Heavy minerals (garnet, topaz, etc.) that are fed into the shaker in close proximity to tantalum will lower the beneficiation process. On shakers, the heavy circulation of such heavy minerals causes “shielding” of the particulate tantalite-niobite and increases the loss of tantalum.