Water-soluble polymer dispersion appliance
AssigneeS.P.C.M. SA
InventorsPhilippe Jeronimo, Emmanuel Pich, Eric Denjean
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Abstract
Device for dispersing a water-soluble polymer including a rotor equipped with knives, a fixed stator, over all or part of the periphery of the chamber, a ring fed by a secondary water circuit, characterised in that the rotor knives and the stator are made out of austeno-ferritic stainless steel and in that the stator comes in the form of a cylinder in the wall of which are cut vertical slits produced on part of the height of the wall, the slits having a width of between 150 and 700 micrometers.
Claims9
A device for dispersing a water-soluble polymer with a standard particle size distribution below 1 mm comprising:
- a wetting cone in which the polymer is metered, said cone being connected to a primary water inlet circuit,
- an assembly disposed at the bottom end of said cone, said assembly comprising:
- a chamber for grinding and draining of the dispersed polymer comprising:
- a rotor driven by a motor and equipped with knives,
- a fixed stator, and
- a ring disposed around at least part of a periphery of the chamber, the ring fed by a secondary water circuit and communicating with the chamber to ensure that pressurised water is sprayed onto the stator,
- characterised in that the rotor knives at least partially, and the stator are made out of a stainless steel selected from among the austeno-ferritic or austenitic steels and treated by vacuum nitriding or by carbon diffusion and further characterised in that the stator comprises a cylinder in a wall of which are cut vertical slits made over part of the height of said wall, the slits having a width of between 150 and 700 micrometers.
Dependencies are inferred from the claim text.