Nuclear
Evaporator D Contract
In January 2010, LM was awarded the Evaporator D module nuclear steelwork fabrication and assembly contract by Interserve Industrial Services Limited.
The contract to supply over 1000 tonnes of stainless and mild steel modules to exacting quality standards has led to LM investing significantly in facilities and people.
The project utilises a dedicated facility at Unit 13, Queensway to fabricate and weld the module components. These are then supplied to the Interserve assembly facility at Ellesmere Port for final erection.
Project Overview
There are currently three evaporators that make up Sellafield’s Highly Active Liquor Evaporative Capacity. Evaporator D will expand Sellafield’s ability to process nuclear waste material and
ultimately reduce inventories at the site, as part of the NDA’s decommissioning strategy. When operational, Evaporator D will be used to evaporate High Active (HA) raffinate produced during reprocessing and to process effluent from the Waste Vitrification Plant (WVP). Once concentrated through evaporation, the raffinate is called Highly Active Liquor (HAL). HAL is stored in the Highly Active Liquor Encapsulation and Storage facility prior to feeding to the WVP for vitrification, which immobilises the waste for long-term storage and eventual disposal.
Project Description
• Evaporator D will be a very large evaporator structure, sited at the Sellafield site in Cumbria.
• The housed building will consist of 14 in-cell modules, the largest of which will be 27m high.
• Over 21 kilometers of pipe work, bound together by over 10,000 welds.
• 300 Tonnes of specialist steel used to make the key highly active equipment.
• 396 major plant items.
• Modules will be transported by sea, and moved onto Sellafield site across the River Ehen and the Barrow to Workington rail lines.
