CURRENT SELECTION OF SOLID AND ITS DEVICE

摘要

PURPOSE:To obtain a current selective technology by which needle-like materials such as electric wire found in the crushed products of large industrial wastes are easily fractionated from non-needle-like materials efficiently using the difference in shape of the needle-like materials. CONSTITUTION:A mixture of a needle-like material and a non-needle-like material is supplied to a fluid fractionating tank 1, and turbulent air flow is supplied from below through a gradient mesh plate 2 arranged at the bottom to cause a material to be fractionated to flow. In this case, the needle-like material drops due to its gravitational stalling in a longitudinal direction and passes through a mesh plate 2 to be recovered into a needle-like material recovery tank 3 below the mesh plate. The non-needle-like material flows down along the gradient mesh plate for separation.