Bruks Siwertell delivered two high-capacity Siwertell ship-unloaders to Suizhong Power Plant in Liaoning, China.
Ordered to ensure zero dust emissions and spillage-free coal handling, the 790 D-type unloaders now operate as a critical part of a large expansion project at the 3,800MW coal-fired power plant.
Located on the Bohai Sea, Liaoning’s seaside resorts are particularly popular holiday destinations for people living in Beijing.
“Seaside resorts and large coal handling facilities are not natural companions, but busy ports, space constraints and growing populations often require them to be, and when they are, some of the strictest environmental regulations come into force,” said Per Wahlström, Bruks Siwertell contract manager for the Suizhong project.
“No spillage or dust emissions from handling coal were allowed. This is where Bruks Siwertell came in. The power facility approached us to see if our enclosed unloaders would meet the standards required, and they do.”
The initial contract was signed with Suizhong Power Generation Co Ltd and Shenhua in 2016. Since then, Shenhua has merged with another large Chinese energy company, Guodian, forming China Energy.
“Suizhong needed to increase its annual intake of coal to around 6 Mt in the most environmentally friendly way possible,” Wahlström explained. “Previously, the coal was handled with grab cranes, and in comparison, our unloaders offered significantly higher rates of through-ship efficiency, environmental protection, shorter turnaround times for vessels, and cost savings.”
The two ship-unloaders ensure totally enclosed, dust-free coal handling and each offer a continuous rated capacity of 1,500 tph, serving vessels up to 50,000 dwt. They were delivered fully assembled on a barge from Nantong.
“The most critical phases were loading and unloading the completely assembled units from the barge onto the power station’s new jetty using a floating crane,” said Wahlström. “Safety precautions, effective preparation and good communication involving all parties are crucial in these operations.”
The jetty extends 2,500m out into the Bohai Sea and accommodates the unloaders on a 300m-berth along with transfer towers and new conveyors.