| 摘要 |
PURPOSE:To wash precipitate stuck to a slanted part in a short washing time by providing a gas-pipeline which has gas-nozzle for washing in the upper part ot the lower-part of the slanted part of a settling apparatus. CONSTITUTION:A settling tank 1 is provided with a slanted part 2 and an overflow weir 3. Solid incorporated in drainage 4is precipitated to the slanted part 2 and separated from liquid 6 as precipitate 5. Gas-pipelines 12 are provided in the nearly all regions under the slanted part 2. Many nozzles are provided toward the upper part to the gas-pipelines 12 and compressed gas for washing is jetted therethrough. Therefore at a time for washing the slanted part 2 the precipitate stuck to the slanted part 2 can be completely washed in a short time by cavitation effect caused when the compressed gas is suddenly floated and diffused. |
