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    • 1. 发明申请
    • METHOD AND APPARATUS FOR SEWAGE GRIT REMOVAL
    • 方法和装置去除土壤除草
    • WO2010063107A1
    • 2010-06-10
    • PCT/CA2009/001746
    • 2009-11-27
    • OTV SA - FRANCEBELIVEAU, MarcBRUNEAU, MichelCOUTURE, MartinESSEMIANI, Karim
    • BELIVEAU, MarcBRUNEAU, MichelCOUTURE, MartinESSEMIANI, Karim
    • C02F1/38B01D21/06
    • B01D21/0087B01D21/003B01D21/0039B01D21/02B01D21/24B01D21/2405B01D21/2411B01D21/2427B01D21/245B01D21/26C02F1/38
    • Apparatus for separating grit from liquid sewage while retaining organic solids in suspension. The apparatus includes a grit settling chamber, a grit storage chamber positioned below the settling chamber, and a rotating vertical shaft positioned centrally in the settling chamber. A propeller is rotatably mounted around the shaft. A conical partition extends transversely through an intermediate section of the settling chamber. Liquid sewage engages the lower part of settling chamber beneath the conical partition, and liquid separated from grit escapes from the upper part of settling-chamber above conical partition. The partition has a peripheral edge integrally mounted in fluid tight fashion to the peripheral wall of the settling chamber, and defines a central annular opening between the shaft and the partition to provide for upward flow of liquid from the lower subchamber to the upper subchamber. The propeller enables sustained rotational liquid sewage first fluid flow within the lower subchamber, inducing upward liquid second fluid flow from the lower subchamber through the partition annular opening and into the upper subchamber, and enables sustained rotational liquid third fluid flow within the upper subchamber for tangential or radial escape therefrom, wherein a fluid flow speed gradient is established between the third fluid flow and the first fluid flow.
    • 用于在将有机固体悬浮在一起的同时分离砂浆与液体污物的装置。 该设备包括砂粒沉降室,位于沉降室下方的砂粒储存室和位于沉降室中心的旋转垂直轴。 螺旋桨围绕轴可旋转地安装。 锥形分隔件横向延伸穿过沉降室的中间部分。 液体污水与锥形分隔壁下方的沉降室下部接合,液体与砂粒分离,从锥形分隔壁上方的沉降室上部排出。 分隔件具有以流体密封的方式与沉降室的周壁一体地安装的外围边缘,并且在轴和隔板之间限定了一个中心环形开口,以提供液体从下部子室向上流动的上部副室。 螺旋桨使持续的旋转液体污染物在下部子室内的第一流体流动,引起来自下部子室的向上的液体第二流体流动通过隔板环形开口并进入上部子室,并且使上部子室内的持续旋转的液体第三流体流动切向 或径向逃逸,其中在第三流体流和第一流体流之间建立流体流速梯度。