一发展史随着冶金工业高速发展,在选矿工艺中,对细粒筛分、分级设备日益需要。1950年荷兰矿业局首先使用了弧形筛;苏联对旋流筛加紧研制;西德的莫根逊筛与声波筛尤其适用于干式筛分分级;瑞典萨拉公司生产了筛孔为0.1毫米的圆筒筛等。这些筛分分级设备的出现弥补 A history of development With the rapid development of metallurgical industry, in the beneficiation process, the screening of fine grading, grading equipment is increasingly needed. In 1950 the Dutch mining bureau first used the curved sieve; the Soviet Union swiftly developed the swirl sieve; the West Germany’s Morgon sieve and the acoustic sieve was especially suitable for the dry sieve classification; the Swedish Sarah company produced the sieve opening 0.1 mm Cylindrical screen and so on. The emergence of these screening grading equipment make up