FIELD: construction.
SUBSTANCE: invention is related to hydraulic mechanisation, production of sapropel, clay, development of silts. Dredger suction head comprises axial dredging pump with auger working element equipped with slot nozzles installed on its hub between helical ribs and joined to header of lubricating medium. Helical ribs are arranged in the form of separate segments, between which additional nozzles are installed with the possibility to create layer of lubricating liquid on side surfaces of segments, connected to header of lubricating liquid.
EFFECT: increased efficiency of suction head.
5 cl, 6 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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