| 摘要 |
In methods for transporting an aqueous slurry of particulate solids in a pipeline wherein the aqueous slurry has an effective viscosity greater than water and is pumped through the pipeline by at least one centrifugal pump wherein a flushing fluid is used to maintain the bearing surfaces in the centrifugal pump free of particulate solids, an improvement comprising; the use of a thickened aqueous flushing fluid having a viscosity equal to at least about 80 percent of the viscosity of the aqueous slurry.
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