Bahrain-based Salatie Marine – which has installed Powerscreen’s impressive range of washing, screening, dewatering and conveying equipment – now has the setup to provide high quality aggregates that will fuel the ever-increasing demand from the kingdom’s construction sector, says Powerscreen.

Salatie Marine was in fact so impressed with the performance of the Powerscreen equipment that it has recently placed an order for a new plant with the local Powerscreen dealer, Mohammad Jalal and Sons of Bahrain. This was shipped out to the firm from Powerscreen’s Dungannon headquarters last month, says a spokesman for Powerscreen.
Several impressive projects are under way in Bahrain, utilising vast amounts of concrete and the main aggregate constituent is largely made up of screened, washed and desalinated marine-dredged sand, with the final product specified to a maximum 4mm, says the spokesman.
“Salatie Marine has put together a Commander 1400 12 by 5 rinser, a Trident 2 dewaterer and a T4026 conveyor in tandem to provide the output, quality and reliability of desalinated marine-dredged building sand that is required for its many construction clients,” he says.
“Usually, a configuration such as this is designed to remove contaminate clays or silt but, in this case, the majority of the waste products extracted consists of seashells and the essential removal of chlorides (sea salt) through the washing process requires a constant supply of fresh water which, in this region, is probably the single most costly part of the whole process, he points out.
The Powerscreen Commander 1400 is a fully-integrated mobile conveying, screening and rinsing plant which features a patented four-bearing rinser screenbox, hydraulic screen angle adjustment, radio-controlled tipping grid and a proportioned feed hopper. In Salatie’s installation, the top screen deck has a 12 mm mesh size, with 4 mm bottom screen mesh size to ensure accurate final 4 mm sand.
The Commander 1400 is linked to the Trident 2, which is specifically designed to work with the Commander range. The Trident 2 – which is a mobile screw recovery, twin bucket wheel dewatering unit – is equipped with its own electric hydraulic powerpack to drive the bucket wheel and fines recovery screw. The variable speed fines recovery screw ensures effective movement of fine sand to the discharge bucket, thereby ensuring that the entire processed product is discharged to the T4026 stockpiling conveyor. This model is the smallest conveyor in the Powerscreen range and has excellent volume and stockpiling capabilities, despite its compact dimensions, he adds.