| 摘要 |
<p>Dry powdered material is slurried with a liq. in a container with the help of a stirrer unit. The powdered material includes gravel shaped contaminants. The powdered material is added under the surface near the stirrer. The bottom of the container slopes downwards towards the outlet for the contaminants. Pref. the dry material is limestone and the liq. is water.</p> |
