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Bruks Siwertell keeps shipunloader in peak condition

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Dry Bulk,


Bruks Siwertell has secured a new service contract that will see it deliver original equipment manufacturer (OEM) parts and expertise to a long-serving shipunloader at the 4200 MW Mailiao power plant; the third largest operating in Taiwan.

Six large Siwertell unloaders, owned and operated by Formosa Petrochemical Corporation (FPC) and MaiLiao Power Corporation (MPC), supply fuel to the plant. Three of these were delivered in 2001, two in 2006 and one in 2018. Four Siwertell ST 790-type unloaders handle coal, and one ST 790 and one ST 940-DOB unloader are combined coal and salt unloaders.

Bruks Siwertell will deliver a new electrical system including a motor control centre and transformer housing for one of the 2006-delivered ST 790 shipunloaders, which currently handles salt and coal at a rated capacity of 2000 tph, discharging vessels up to 180 000 DWT.

The mixture of coal and salt accelerates corrosion and rust on metal surfaces. Coal is abrasive and salt can become extremely compacted in the hold, requiring huge digging forces; the combination of these factors can cause significant wear to bulk handling equipment. Siwertell screw-type conveyor technology has been designed to overcome these challenges, offering high through-ship performance and long-term, cost-effective operations.

“Over the years, these hard-working machines have been kept in excellent condition, and after clocking-up over 30 000 operational hours have undergone major electrical and mechanical upgrades and overhauls, including replacement slewing bearings and an upper turret exchange,” says Tony Aronsson, Area Manager APAC, Bruks Siwertell.

“We have a long and respectful working partnership with FPC,” Aronsson continues. “It is a company that strives to keep its equipment up-to-date with the latest technology, so that, in return, it offers the highest possible efficiency, availability and safety. For this latest service contract, we saw the potential for significant operational advantages and FPC recognised the opportunity as well.

“We did discuss several options, including overhauling the existing system and components within the motor control centre and transformer housing,” he explains. “However, this would have been extremely time-consuming and incur considerable downtime for the shipunloader; not a realistic option for the power plant as the unloaders are in near-constant operation. Our solution was to exchange the parts entirely, delivering a fully equipped and test-ed system in a fraction of the time.”

The replacement system is due for delivery towards the end of 2021, with the installation planned for 2022. It will take about six weeks to complete, minimising any downtime.

Read the article online at: https://www.drybulkmagazine.com/material-handling/14062021/bruks-siwertell-keeps-shipunloader-in-peak-condition/

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