METHOD AND EQUIPMENT FOR MIXING A POWDER WITH A LIQUID AND FOR REACTING A POWDER WITH A LIQUID

摘要

There is described a method of mixing a powder with a liquid comprising forming the liquid into a flowing film and dispersing the powder and directing it at the flowing liquid film so that it impinges thereon and mixes therewith. There is also described equipment (10) for mixing a powder with a liquid, comprising a mixing chamber (28), liquid inlet means (48) in the upper part of the chamber for directing the liquid onto an upper part of a supporting surface (31) in the chamber, the liquid inlet means (48) and the supporting surface (31) being so arranged that the liquid flows downwardly in adherence with the surface in use, and means for introducing the powder (13, 25) to the chamber (28) at a position spaced from the liquid inlet flow, for dispersing the powder within the chamber (28) and for directing it toward the said surface (31) so that it impinges on the liquid flowing down it, in use, and mixes therewith.