Calciners for Alcan Gove


Gove, NT

CLIENT: Outokumpu Technology (Now Outotec (Australasia) Pty Ltd)

VALUE: $2 Billion

Calciners for Alcan Gove

Towering over 11 storeys and weighing more that 4 jumbo jets, the new alumina calciners, designed by Outokumpu Technology, comprise Australia's biggest ever landed preassembled modules. Baigents Pty Ltd designed and shop detailed all the steelwork and designed and documented the foundation rafts on the project.

The Alcan Calciner No.'s 6 & 7 were constructed as preassembled modules. They were fully fabricated and assembled in Thailand complete with vessels, equipment, piping, electrical/instrumentation fitout and structure and were shipped to Gove where they were transported and lowered onto their foundations.

The transportable modules and the calciner structure were analysed with Strand 7 finite element analysis software. This ensured the structural integrity when the modules were transported by road, on board the ship at sea and fully assembled as an operating structure in Gove and subjected to cyclonic winds. The 3D modelling software was used to develop, review and optimise the structure.

Baigents Pty Ltd shop detailed the calciner structural steel using 3D Tekla software. This advanced detailing package complimented the PDS software used by Outokumpu for modelling vessels, pipework and cable routes.

Baigents Pty Ltd designed the stack for each calciner. These cantilever stacks are 75 metres high and are designed to withstand cyclonic wind loads.

The foundations for the calciners and their stack were designed as rock anchored raft foundations.