我厂自1958年4月份起,采用水力旋流器代替浮槽式分级机进行粗精矿的分級。 給入水力旋流器的物料組成是:质軟(硬度仅为1—1.5)呈鳞片狀的輝钼矿(MoS_2 35—40％),鉄(黄鉄矿中的铁)佔1—3％;其余为硬度較大的脉石(柘溜石——硬度6.5—7 5;輝石等)。液相中含有数量較多的非極性油类。分級后要求达到的粒度是—0 075公厘佔90％。生产中采用如右面附圖的流程。半年来实际生产証明,水力旋流器完全可以代替通常使用于分级細物料的浮槽式分级机。水力旋流器与浮槽式分級机(表1)的工作情况比較列如表2: 由表2的数据可看出。水力旋流器溢流中—0.038—+0.019公厘的約佔:48.87％;而在浮槽式分級机的溢流中此級別佔37.98％(浮槽式分級机給矿粒度較細),而—0.075公厘級別产出率均已达到要 I plant from April 1958 onwards, the use of hydrocyclones instead of floating-class grading for coarse concentrate. The material composition of the hydrocyclone to be fed into the hydrocyclone is: a molybdenum (MoS 2 35-40%) which is soft (1-1.5 in hardness only), 1-3% in 鉄 (yellow iron ore) ; The rest is more hardness of the gangue (sliver stone - hardness 6.5-7 5; pyroxene, etc.). Liquid phase contains a larger number of non-polar oils. The required grain size after classification is -0 075 mm for 90%. Production process used as the right figure. The actual production of six months to prove that hydrocyclones can replace the commonly used in grading fine materials floating class grading machine. Hydrocyclones and flotation classifier (Table 1) Comparison of the work shown in Table 2: Table 2 from the data can be seen. In the hydrocyclone overflow, -0.038- + 0.019 mm accounted for about 48.87% of the total, while this level accounted for 37.98% of the overflow in the flotation classifier (flotation classifier gave finer particle size) The -0.075 mm level of output rates have reached the desired level