| 摘要 |
<p>The invention relates to a mixing device (5) of a flotation device for removing impurities from an aqueous fibrous material suspension (1) in a flotation tank (2) using gas bubbles, wherein at least one stream of the fibrous material suspension (1) flows through the mixing device and the mixing device comprises at least one supply (10) of a stream of gas, wherein the stream of the fibrous material suspension (1) is guided in the mixing device (5) through one or more flow channels (7). The energy requirement should be reduced in the process as a result of the flow velocity of the fibrous material suspension (1) in the flow channels (7) being between 8 and 12 m/s.</p> |
