Patent ID: 8480018

Claim:
Apparatus for the preparation of finely divided calcium hydroxide by quenching of calcium oxide with water, comprising a) an impact disintegrator comprising a housing equipped with a feed opening, a first rotor fitted inside the housing, equipped with blades with impact surfaces and which form at least one coaxial ring with said rotor, a second rotor or stator, fitted inside the housing and being coaxial with the first rotor, wherein the rotor or stator is equipped with blades having impact surfaces which form at least one coaxial ring with said rotor or stator, and which are staggered with the ring of the first rotor, and a discharge opening; b) a screw conveyor having a feeding end connected to the discharge opening of the impact disintegrator, said screw conveyor equipped to add water to material conveyed therein, and c) a cistern connected to a discharge end of said conveyor, said cistern having an agitator and equipped to add water to said material.