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09.02.2015 Screw conveyors to feature prominently at DSM’s new Ammonium Sulphate plant

Van Beek, Drunen, the Netherlands, has won an order to supply 17 screw conveyor systems for DSM’s new ammonium sulphate plant currently being built in Geleen alongside the chemical manufacturer’s existing caprolactam facility. The contract was placed by the main contractor Tebodin.
If ammonium sulphate comes into contact with moisture it becomes aggressively corrosive. For this reason all the installations, piping and the screw conveyor systems are made of 316L stainless steel. The screw conveyors are of the trough type and convey the Ammonium Sulphate horizontally or at a slight incline. The screw dimensions range in diameter from 300mm to 500mm and from 3m to 12m in length. The longer systems are made with special intermediate bearings (also made of SS316L) and special gaskets and inspection hatches. Four of the 17 screw conveyors will be used for raw material production for the foodstuffs industry. Here the screw conveyors have a ground finish. In addition application-specific options are incorporated, such as level detection, moisture measurement and the fitting of sampling points, CIP piping and spray nozzles. For each screw conveyor, drawings, manuals, spare parts lists, motor data, tag numbers and certificates are supplied.

One of the new Van Beek screw conveyors being installed at the new DSM plant 

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