| 摘要 |
A slurry-pumping means which comprises a driving pump, an intake diaphragm pump, an exhaust diaphragm pump connected therewith in series and an intermediate check valve, and driven by a fluid medium in such a manner that, while two unit volumes of the slurry are taken in by the intake diaphragm pump, one unit volume of the slurry contained in the exhaust diaphragm pump is exhausted out thereof, and, while the intake diaphragm pump does not take in the slurry, one unit volume previously taken in by the intake pump is exhausted from the exhaust pump and the other one unit volume previously taken in by the intake pump is accumulated in the exhaust pump and becomes the first-named one unit volume. By virtue of the above operating manner and a construction adapted thereto, the output becomes continuous with a uniform pressure. Various means for operation and maintenance thereof are also disclosed.
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