Aggregate Industries choose Hewitt Robins
Hewitt Robins International (HRI) have recently supplied five new screens to Aggregate Industries’ Newbold Quarry, at Barton, near Burton-on-Trent.
The HRI screens include: a 4,200mm long x 2,200mm wide LPE-11 horizontal vibration screen capable of handling in excess of 160 tonnes/h of –6mm sand and water (60% solids by weight to separate excess grit); and a 6,000mm long x 1,800mm wide LPE-9 horizontal vibrating screen capable of processing 100 tonnes/h of –1mm sand and water (50% solids by weight to separate coarse lignite with fine sand and water passing through).
The recently installed processing plant at the quarry, designed and built by Salisbury-based MEP Ltd, has also been supplied with three HRI de-watering screens all angled at 5°.
They comprise: a 6,000mm long x 2,500mm wide long E-13 screen with a duty to de-water 350 tonnes/h of –6mm concrete sand with up to 200m3/h of water; a 4,800mm long x 1,600mm wide LPE-9 screen capable of handling 100 tonnes/h of –1mm sand with up to 60m3/h of water; and a 2,400mm long x 1,000mm wide LPE-6 screen capable of de-watering 6 tonnes/h of –0.25mm sand with up to 6m3/h of water, which captures any residual sand.
All the HRI screens are twin- shaft, four-bearing single-deck machines equipped with Eliptex vibrator units, 450mm feed boxes and 150mm discharge lips, with 10mm PU liners, support springs, spring base plates, v-belt drives and motor pulleys.
Product capacity and efficiency are said to be maximized via the Eliptex vibrator’s three-way motion utilizing horizontal, vertical and elliptical components.