FIELD: process engineering.
SUBSTANCE: proposed device comprises cup with spring elements, staggered along the circle to make wedge-shaped grooves in outer circle, inner elastic element, rod and turbuliser cavitator made up of screw driven by hydro-baro-dynamic jets forced on screw blades. Screw blade edges in contact with sediments are furnished with abrasion proof coating while screw proper may be equipped with rings rigidly jointed with blades. Dynamic destruction of sediments on tube inner surface combines water jets effects and drilling out of sediments by screw that acts as drill bit.
EFFECT: higher efficiency.
1 dwg
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