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Division: Rental – Kalgoorlie
Customer: Minara Resources
Site: Murrin Murrin, Western Australia
Contract: Three years (October 2015 – October 2018)
During planned shutdowns, the site’s acid converter plant must be cooled down. It generally operates at approximately 400 degrees Celsius but during the shutdown the temperature drops to approximately 200-150 degrees Celsius over a number of days.
Historically extraction fans have been used for airflow but our technician discovered that this process actually provides airflow and moisture to the catalyst, which makes it active and thus increases heat.
Our solution is to add glycol to run lower temperatures, remove moisture and negate the freezing up of coils overnight in order to speed up the shutdown process by a few hours.
The cooling solution that we provide drops the temperature to 50 degrees over a 14-hour period providing cost efficiencies with significantly less downtime.
Minara Resources is one of Australia's top nickel producers and operate the Murrin Murrin nickel cobalt site in Western Australia’s north-eastern goldfields. Conventional open pit mining techniques are used followed by ore processing (comprising pressure acid leaching, mixed sulphide precipitation, cobalt refining and nickel refining). Ammonium sulphate is also produced as a by-product.
Our contract is to supply 20kVA – 2000kVA power generation to the entire Murrin Murrin site including for outages, planned shutdowns and maintenance. Temperature control equipment does not form part of the contract but we are given first right of supply. There is also a bi-annual requirement for 12MW of temporary power for the main power station during shutdown maintenance, a process that can last for up to three months.
Cat generators and temperature control products including:
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