Process and apparatus for attrition carried out in a humid mediu

Details Process and apparatus for attrition carried out in a humid mediu Process and apparatus for attrition carried out in a humid mediu

1981-12-23

1984-03-06

Rosenbaum, Mark

Solid material comminution or disintegration

Processes

With application of fluid or lubricant material

241 26, 241 29, 241 4611, 241 4617, 241152R, 241284, B02C 1716

Patent

active

044349424

ABSTRACT:
This invention provides a process and apparatus for the wet attrition of ore. The process comprises grinding the ore to a pulp having a particle size distribution such that about 80% by weight of the particles have a diameter of from about 30 to about 0.4 mm; and agitating the pulp in a slightly turbulent medium. The apparatus comprises a vat having top and bottom covers with central openings and a gutter disposed along the exterior circumference of the top of the vat; a cylindrical shaft extending through the opening in the top cover; and a pair of impellers mounted at a distance apart on the shaft, the blades of the impellers being so arranged that the pulp is pumped towards the space defined between the two impellers.

REFERENCES:
patent: 1741063 (1929-12-01), Mason
patent: 2136726 (1938-11-01), Osborne
patent: 2464588 (1949-03-01), Knudsen et al.
patent: 2562024 (1951-07-01), Dunn et al.
patent: 3404870 (1968-10-01), Multer
patent: 4175790 (0000-01-01), Predali

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