| 摘要 |
<p>The invention concerns a hydrodynamic stirring device for dissolving, mixing or restore in suspension or in sol, in a main liquid phase, a sedimentary deposit contained in a tank (1) and covered by said main liquid phase, said stirring device comprising suction means (2, 8, 9) including at least a pump (2) for drawing from said tank (1) the liquid of said main phase, and injecting means (3, 4) connected to the suction means delivery side and arranged to re-inject said liquid into said tank, towards said sedimentary deposit, in the form of at least a jet with predetermined pressure and flow rate. Said injecting means (3, 4) comprise at least a tube (4) bearing at its end a self-rotating jet pipe (3), said jet pipe (3) comprising a hollow cylindrical (17) stator (81) open at its two ends and connected by one first end to said tube (4) and nozzle-bearing rotor (18) mounted rotating on said stator, at the second end thereof, and which bears at its periphery at least two nozzles or sprayers (21) whereof one at least has an orifice (22) directed so as to have a tangential component relative to the nozzle-bearing rotor (18). The invention is characterised in that the spray nozzles (21) are arranged so as to cancel the resultant of radial components.</p> |
