device for the withdrawal of the verschlammten sand in the hauskläranlage filterschacht via a spiralteller

• 1. 一种可冲洗解堵滤砂装置及解堵滤砂管柱 [P] . 中国专利： CN113494276A . 2021-10-12
• 2. 一种可调节滤砂孔径的滤砂装置 [P] . 中国专利： CN210230571U . 2020.04.03
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  机译： 紧凑型hauskl u00e4ranlage用于生活污水的净化

• 4. compact hauskläranlage for purification of domestic waste water [P] . 德国专利： DE9109010U1 . 1991-09-19

  机译： 紧凑型hauskl u00e4ranlage用于生活污水的净化

• 5. SEDIMENTARY STATE MONITORING METHOD FOR EARTH AND SAND IN SLUDGE WITHDRAWAL PIPE AND STOPPAGE PREVENTION METHOD FOR SLUDGE WITHDRAWAL PIPE [P] . 日本专利： JP2000320294A . 2000-11-21

  机译： 排泥管道泥沙沉积状态监测方法及排泥管道停工预防方法

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• 3. 离心试验制模幕式砂雨法装置研制与性能评价 [A] . 方浩 . 2019