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采用倾斜板式分选装置根据物料密度的差异进行物料分选将料浆用泵给到分选装置中后,颗粒沉降在倾斜板上并滑到底部,产生一种浓缩的底流,而沉降速度较慢的颗粒继续向上移动,产生一种溢流,在特定的装置系统中选用了密度为1400kg/m~3的聚氯乙烯颗粒和密度为2370kg/m~3的小玻璃球。当前者粒度为-250+125μm、后者粒度为-125+75μm时,它们在水中的沉降末速相同。给入沉降槽的料浆密度小于1150kg/m~3,在槽内形成密度为1325kg/m~3的悬浮液。自生介质使聚氯乙烯颗粒和小玻璃球的分选效率达到90%。介绍了一种对在广泛范围的给料密度和给料速度条件下所得的数据进行规范的简单方法。
Material selection by slant plate sorter based on material density differences After the slurry was pumped to the sorting unit, the particles settled on the inclined plate and slipped to the bottom to produce a concentrated underflow with a faster settling velocity Slow particles continue to move upward, resulting in an overflow. In a particular system, polyvinyl chloride particles with a density of 1400 kg / m 3 and small glass balls with a density of 2370 kg / m 3 are selected. The current particle size is -250 + 125μm, while the latter particle size is -125 + 75μm, they are the same in sedimentation velocity in water. The density of the slurry fed into the settling tank is less than 1150 kg / m3, forming a suspension with a density of 1325 kg / m3 in the tank. Self-generating medium to PVC particles and small glass ball sorting efficiency of 90%. A simple method to standardize the data obtained over a wide range of feedstock densities and feed rates is presented.