The new calandria bubble distribution optimized for jet inflatable cone slime bucket the Pai Mei flotation column flotation. A flotation column cylinder body is set in the pipe and dry pipe connected manifold, the manifold along the column flotation cylinder inner ring arranged in parallel, was a round, dry pipe vertical plane and through one end of each tube and trunk symmetry connected to the other end of the closure; trunk at one end with a dry pipe joints through the barrel of the flotation column, the other end of the closure; said along the column flotation cylinder inner ring arranged in parallel under the branch pipe has a number of α angle liquid outlet in the vertical symmetry.Uniform air distribution in the cross-section of the column flotation, the cloth gas is better than the tangential tube bubble distribution, and will not reduce the flotation column diameter increases, which can improve the flotation efficiency, its compact structure, easyimplementation of the work is good, with a wide range of practical.