Fertiliser unloader will provide clean operations

Sirtwell unloader Siwertell's screw-type ship unloader has a totally-enclosed conveyor system which eliminates dust emissions and spillage

A new ship unloader will help ensure efficient, safe and clean fertiliser unloading.

Siwertell, part of Kalmar Business Area within Cargotec, will provide an ST 490-M ship unloader for Norwegian mineral fertiliser producer Yara International, to be used at the company's site at Glomfjord Port in Norway.

"Siwertell's screw-type ship unloader was chosen for its environmental credentials, which include high levels of efficiency and a totally-enclosed conveyor system, eliminating dust emissions and spillage," explained Peter Göransson, sales manager & senior advisor at Siwertell.

High capacity

The new unloader, designed to work in the harsh Arctic climate, will predominantly handle various types of rock phosphate, discharging ships of up to 20,000 dwt.

It maintains a continuous rated discharge of 600t/h, with a peak capacity of 700t/h.

Norway's stringent environmental regulations meant that in addition to high discharge capacities, Yara needed an installation designed to meet these requirements as well.

June 2019 delivery

"These environmental restrictions, combined with the prevailing high winds at the site, limited the number of options for mechanical ship unloaders," added Mr Goransson. "After evaluating other screw-type ship unloaders, Siwertell's mechanical screw-type ship unloader with its totally-enclosed conveying system was the preferred choice."

Using steel structures produced in southern Europe and equipment built in Sweden, the unloader will be erected and commissioned at a southern European port before being transported by heavy-lift vessel to Glomfjord in June 2019.