Dig A Screener S Series screening wet sticky shale from rock
We recently sent a Dig A Screener 900 S series to a quarry in Lancashire where it was required to screen shale from rock. After prolonged rainfall the material was highly saturated and was proving difficult to screen with conventional flat screens, no matter how aggressive the screen box was.
The material was a mixture of shale and sandstone rock. The objective was to recover as much clean rock as possible which was later to be crushed and made into aggregates. There was a high percentage of saturated shale in the material - as high as 80% in parts. The 900 S coped with it in its stride, recovering the clean rock and casting it to one side. Tonnages averaged at 90 to 110 per hour of total material processed. It proved to be a very cost effective solution to a very sticky problem.
