| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for adding slurry quantitatively, by which slurry can be added quantitatively without clogging a pipeline even when a distance to a slurry injection point is long or a slurry injection speed is low and it is not necessary to perform periodical maintenance work such as cleaning work. SOLUTION: Slurry of a predetermined concentration is added quantitatively to an object to be treated by withdrawing a slurry stock solution 2 quantitatively from a slurry stock solution tank 1 by using a snake pump 4, adding diluting water of the amount equal to or larger than that of the withdrawn slurry stock solution 2 to the withdrawn slurry stock solution 2 and transferring both of the withdrawn slurry stock solution 2 and the added diluting water by a mono-flex pump 6 (a self-feeding pump having no clearance between an elastic impeller and a casing) while mixing them. The slurry contains slaked lime and magnesium hydroxide or magnesium oxide as solids. COPYRIGHT: (C)2006,JPO&NCIPI
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