Worsley stacks it on

FL Smidth Minerals has been awarded the contract for the design and supply a two new slewing and luffing stackers at the Worsley alumina refinery at Collie in south-west WA.

FLSmidth Minerals has been awarded the contract for the design and supply of two new slewing and luffing stackers at the Worsley alumina refinery at Collie in south-west WA.

The contract includes design, engineering and equipment supply. The company will also undertake supervision of the construction and commissioning phases of the contract period.

The stackers have a design capacity of 4,100 tph and an operating capacity of 3,400 tph and will be installed as part of a multi-million dollar upgrade and expansion of the Worsley facility.

According to the company, the system at Worsley will include improvements to the overall design and operation.

Designed to utilise some of the site’s existing infrastructure, Worsley’s new stackers will include a main portal gantry supporting a slewing superstructure with a luffing boom conveyor.

Boom balancing is based on the proven Bascule-type design with hydraulic hoist. The counterweight is integrated into the luffing system which means the boom only has to compensate differential movements, with no compromising of machine stability.

To eliminate any clumping usually associated with bauxite storage and handling, unique feed chutes will be designed and developed for the Worsley system.

Design and engineering work is already advanced.

The first stacker will be installed early in 2010 and the second unit will follow later the same year.

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