材料期刊网

振摆皮带溜槽是综合了皮带溜槽、摇床和重砂淘洗的原理而研究制造出来的一种新型细泥选矿设备。通过许多试验和比较,确认振摆皮带溜槽可使微细矿粒在多种力的作用下进行有效分选,不但有较高的回收率,而且有较高的精矿富集比。有效的回收粒级为+20微米。经过分选钨、锡、钽铌细泥的试验,一般比摇床、皮带溜槽的选别效果有不同程度的提高,对40微米以下级别的提高更显著。振摆皮带溜槽还具有较显著的粒浮效果,可用作细泥精矿脱硫或从浮选的硫化矿产品中回收重矿物的粒浮设备。经过生产实践证明,设备性能良好,操作稳定,效果显著。

Combining the effective actions of vanning, tabling and heavy mineral pan-ning, a new type slime coneentrator, so called "the vibrating-shaking vanner",has been developed. This concentrator is characterized by concentration ofheavy mineral grains in sub-sieve range. Its remarkable performance is of higherrecovery, as well as of higher ratio of concentration. The lower limit of thegrain size which can be effectively concentrated is about twenty microns. In thecase of concentrating the slime of tungsten, tin or niobium-tantalum ores, com-parative tests on the vibrating-shaking vanner against common table and vannergenerally gave better results, especially for grain size down to forty microns.Furthermore, this vanner can also be applied for table-flotation of slime concen-trates in order to separate sulphides or to recover heavy minerals from flotationconcentrates contaminating with sulphides. Long-time service has proved that theabove vanner gives good performance and its application in metallurgical industryis ever-increasing.