大西洋抽吸式挖泥船用泵

这些泵将被安装在带有吸入管的拖吸式挖泥船上，在大西洋卢瓦尔河口口附近作业。这艘船被设计成可以在高达7米的海浪中运行，而它的料斗可以装载大约2000立方米的沙子和砾石。一个铰接的吸入管帮助挖泥船从深度达45米的地方吸入泥浆。用于此目的的泵由KSB在格鲁吉亚的美国子公司GIW制造;它处理的流速为每小时7000立方米，水头约为30米。它的叶轮直径为1.25米，用于泵送密度高达每立方米1.4吨的砂石水混合物。仅泵壳、叶轮和衬管就重约9000公斤。一旦船的料斗装满了沙子，它就会驶向码头，在那里，同样由GIW制造的第二个泵通过500米长的排放管道将沙子和砾石混合物排放到岸边。该泵重约20吨，叶轮直径超过1.5米。它的最大流速约为每小时6.200立方米。 The impellers and casings of both pumps are made from corrosion-resistant and abrasion-resistant white cast iron with a chromium content of 27 percent. The scope of supply totalling several hundred thousand euros includes a water jet pump and two drainage pumps. KSB was awarded the contract thanks to its ability to supply pump sets capable of handling slurries with a sand concentration of 40 percent while achieving an efficiency of 80 percent. From a technical and cost-efficiency point of view, this offered the operator the best solution.