通常认为跳汰机不适合洗选分选密度低于1.45 g/cm~3的物料,即在密度曲线的陡峭段排料装置不能准确工作,本文提出一种新型的浮标—排料装置,用于低分选密度的分选,即利用密度曲线的平缓段作为浮标的基准密度界面,而实际的分选密度是由电气测量转换器来控制,使分选密度在低于1.45g/cm~3的条件下也能精确的分选。 It is generally considered that the jig is not suitable for washing materials with sorting density less than 1.45 g / cm ~ 3, that is, the steep section of the density curve can not work accurately. In this paper, a new type of buoy- In the low sorting density, that is, the use of the flatness curve of the density curve as the reference density interface buoy, and the actual sorting density is controlled by the electrical measurement converter, the sorting density of less than 1.45g / cm ~ 3 conditions can also be accurate sorting.