| 摘要 |
<p>A method of processing a mixture of at least one liquid and at least one solid in particulate form, in which the mixture is contained within a vertical vessel (1) divided into compartments by a series of apertured baffles (10) located at axial intervals, in which adjustable pulsations are applied to the mixture, and in which the frequency and amplitude of the pulsations are chosen so that so-called 'chaotic' flow takes place within the compartments, promoting a steady-state axial distribution of the solid/liquid concentration, namely a substantially common value within any one compartment and a predetermined ratio between any two adjacent compartments. The method may be of batch type, or liquid may continually flow through the vessel. The baffles may typically be coaxial with the vessel and ring-shaped, so that communication between adjacent compartments is by way of the central aperture in the baffle separating them.</p> |
