Importance

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Abstract

A screen assembly for use in a minerals processing apparatus comprising an elongate separation screen defining an upper surface having a material reception area towards a first end and a material delivery area towards a second end, so arranged that in use material received onto the material reception area is caused to move toward the material delivery area, the separation screen having a plurality of through apertures configured such that as material so moves toward the material delivery area material components below a predetermined size tend to fall through the apertures and material components above a predetermined size continue to the material delivery area; wherein the separation screen is provided with a cleaner device comprising a support structure having on a surface thereof a plurality of projections arrayed in coincident pattern with at least some of the through apertures in the separation screen, and in that the cleaner device is deployable between a cleaning configuration whereat the support structure is brought into close proximity below the separation screen such that the projections into through their corresponding apertures in the separation screen and an undeployed configuration away from such close proximity. A materials processing apparatus and in particular a mineral sizing system incorporating such a screen assembly.

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First Claim