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CASE STUDIES

Queensland Alumina Refinery (Queensland, Australia)

28 September 2023
Mining
Customer: Queensland Alumina Limited (QAL)
Service by: ISS BY AMPO POYAM VALVES, AMPO SERVICE Tailored Engineering Solutions, ISS System integration
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CHALLENGE:

The development of an Emergency shutdown integrated system for Queensland Alumina Limited. (Turnkey project)

SOLUTION:

AMPO POYAM VALVES supplied in 2023 an emergency shutdown integrated system for Queensland Alumina Limited (QAL), one of the largest alumina refineries in Australia. The system was tailored designed by our in-house Ph.D level “INTEGRATED SMART SOLUTIONS (ISS)” experts in tight collaboration with our AMPO SERVICE team, who takes care of aftermarket and develops custom made engineered solutions for worldwide end users/operators of the mining and energy sectors. The system consisted of six 20” 600 lbs slurry angle valves, six Hydraulic Power Units (HPU) and Programmable Logic Controllers (PLC) as well as six oil accumulators.

Located in Gladstone, Queensland, the East coast of Australia, this SIL1 rated emergency shutdown integrated system will be shortly installed in the flash tank area of the alumina refinery, after the digestion unit. This smart system assures valve closure in case a command is received from the plant Emergency Shutdown System (ESD). Hydraulic accumulators guarantee valve closure even if electric power is down. This control system has maximum priority and overrides any other order.

The dual control system also has a Programmable Logic Controller (PLC) for valve positioning. DCS (Distributed Control System) controls the valve position using an optical fibre communication system and can be controlled in 1% increments.

The emergency shutdown system also includes a condition monitoring system to monitor critical parameters such as oil level, temperature, pressure and valve position, which are transmitted to the plant DCS (Distributed Control System) using the beforementioned optical fibre communication system. Electrical enclosure also includes vortex coolers to assure long service life under high temperature conditions. The enclosure is moreover IP65, keeping system isolated from outside contamination.

These ISS systems have already been delivered and will be shortly installed in Queensland Alumina refinery, where we will work hand in hand with the customer during the set-up process, referring our valve and ISS specialists from AMPO to Australia.

With the achievement of this new milestone, AMPO strengths its INTEGRATED SMART SOLUTIONS (ISS) development services, offering more than just valves. AMPO POYAM VALVES’ technology expertise and integration capabilities allow AMPO to design and develop complete bespoke integrated systems, both free standing or skid modular solutions.

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