Fine powder separation device using fine bubble column flotation method

摘要

The present invention relates to a purification apparatus for separating by using the difference in hydrophobicity and hydrophilicity of fine powder by the fine bubble flotation method. The present invention is particularly suitable for unburned carbon separation and coal refining in coal ash.;In the present invention, a water ejector is used as a bubble generator, and when the water ejector is used as a bubble generator, air is naturally inhaled, and thus, an air compressor is not required. can do. In addition, reduction in pressure loss and process stabilization were obtained.;In addition, in the present invention, by adopting a raw material input method introduced in the tangential direction to minimize the turbulent phenomenon generated during the raw material input and to facilitate the discharge of minerals by rounding the bottom of the column.;As a result of the separation using the apparatus of the present invention, it was possible to purify the unburned carbon content during coalation to 2% or less.