| 摘要 |
<p>An improved method of and device for separating at least one kind of objective constituent from solution or solid particles containing at least kind of said objective constituents. The method of this invention is characterized in that: a multi-shaft rotary blade type tower, in which respective screw blades provided on the respective outer peripheral surfaces of at least two revolving shafts in parallel with each other are adapted to be directionally opposite to each other and to overlap partly, is used so that, when said revolving shafts revolve in the directions reverse to each other respectively, solid particles continuously fed onto the bottom of the tower are continuously fed upward; and continuous upward feeding of solid particles from the bottom of said tower toward the top thereof and continuous downward flowing of solution into the tower in counter-flow manner against said solid particles give rise to uniform and effective counter-flow contact between upward fed solid particles and downward flowing solution which are stirred with the rotation of said screw blades, whereby objective constituents in the mixture contained in the solution are distributed to solid particles so as to be separated from the solution or, on the contrary, objective ones of constituents contained in solid particles are distributed to the solution so as to be separated from solid particles. The device of this invention is a counter-flow separator including multi-shaft rotary blade type tower for performing the above-described method.</p> |
