| 摘要 |
A method and an apparatus for subjecting a liquid containing dissolved or suspended dry substance to treatment with air to concentrate the solution or the suspension or to recover the dry substance. The liquid is spread and distributed onto a great many bodies in the form of partly interengaging spheres or polyhedrons, whereby the air can flow forth between the bodies. The bodies are caused to move in a closed path and also in relation to each other thereby disturbing the liquid film on the bodies and accelerating the escape of the liquid in gaseous form and ensuring loosening of the dry substance from the bodies. |
