Patent ID: 8057684

Claim:
Installation for use in the flocculation of water or sludge loaded with suspended matter comprising in succession: a storage hopper for water-soluble polymer having a standard grain size distribution, a grinding device for dispersing the polymer as a polymer suspension, and means for transferring the polymer suspension to the water or the sludge to be treated, wherein the grinding device comprises: a wetting cone in which the polymer is batched, said cone being connected to a primary water inlet circuit, at a bottom end of the cone: a chamber for grinding and draining the dispersed polymer comprising: a rotor driven by a motor and equipped with knives, a fixed stator having blades, on all or part of a periphery of the chamber, a ring fed by a secondary water circuit, the ring communicating with the chamber for the spraying of pressurized water on the blades of the stator and thereby releasing ground and swollen polymer on a surface of the said blades.