Apparatus and method for the production of colloidal mixtures

Details Apparatus and method for the production of colloidal mixtures Apparatus and method for the production of colloidal mixtures

B - Operations, Transporting

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B28C 5/00 (2006.01) B01F 3/12 (2006.01) B01F 7/16 (2006.01) B01F 7/18 (2006.01) B01F 15/00 (2006.01) B01F 7/00 (2006.01)

Patent

CA 1187481

ABSTRACT OF THE DISCLOSURE Apparatus for the production of colloidal mixtures, especially water-cement mixtures with or without solid additions comprising a mixing container having a bottom; an inlet for the solid material to be fed into the container; a blade stirrer arranged adjacent to the bottom of the con- tainer; drive means arranged above the mixing container; shaft means having a portion in the container and connect- ing the drive means with the blade stirrer, a protective casing surrounding the portion of the shaft means in the container and having a lower end tightly engaging the shaft means and connected to the latter for rotation therewith, the casing projecting upwardly from the lower end radially spaced from the shaft means and having an upper open end; and water inlet means arranged for discharging a stream of water in the region of the upper open end of the casing, into the container and into the radial space between the casing and the shaft means, via the upper open end, for subsequent centrifugal discharge therefrom resulting from rotation of the shaft means, to remove residual material on the shaft means, thus not only to supply water for producing a water-cement mixture, but also to prevent accumulation of residual material on the shaft means.

377792

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