| 摘要 |
<p>For the purposes of flotation in the deinking of waste paper, a number of flotation cells connected in series inside a compartmentalised, essentially closed, elongate container are provided, which essentially have a mixing pipe for liquid and air dipping into the suspension from above in the centre of the individual cells and where the foam outlet opening is arranged on at least one longitudinal side of the container. In order to improve mixing with air and to provide a low-power device, an injector for the supply of the suspension to be floated in the cell, mixed with air, is added to each mixing pipe. In this way, the mixing pipe in each case ends at a smaller distance from the bottom of each cell than the internal diameter of the mixing pipe.</p> |
