螺旋选矿机一般用来选别有用矿物粒度不超过2～3毫米的物料。伊尔库茨克稀有金属研究院的研究表明,螺旋选矿机可以选别有用矿物粒度为2～12毫米的物料。本文将叙述直径500毫米的半工业螺旋选矿机参数的研究情况。通过研究确定了螺旋溜槽的节距,选别区的倾角,螺旋溜槽的断面形状与圈数。以分级的2～4,4～8与8～12毫米的石英与黄铁矿、钨锰矿的人工混合料作试样。主要的试验是在4～8毫米级别按通用的方法进 Spiral concentrator is generally used to select the useful mineral particle size does not exceed 2 to 3 mm of material. Research by the Irkutsk Institute for Rare Metals shows that the spiral concentrator can select materials with useful mineral sizes of 2 to 12 mm. This article will describe the research of semi-industrial spiral concentrator parameters of 500 mm in diameter. Through the research, the pitch of the spiral chute, the inclination of the sorting area, the cross-sectional shape of the spiral chute and the number of turns were determined. The graded 2 ~ 4,4 ~ 8 and 8 ~ 12 mm of quartz and pyrite, wolframite artificial mixture as a sample. The main test is in accordance with the general method of 4 ~ 8 mm level into