ALE designed a bespoke solution for the installation of power generation equipment at a biomass power plant in Pontevedra, Spain.
The power generation items’ installation was part of a project to modernise a pulp mill at the plant. ALE’s experience of working on sites with limited space available enabled them to design a specialist alternative solution that provided a swift and cost-efficient installation method for the biomass power plant.
The first stage of the operation consisted of the installation of a condenser, weighing 54t. Four lifting pads were welded to the condenser before the manoeuvres began. These would later form the condenser’s contact points with the skid track. ALE then used a skidding system, with four skid shoes and two push-pull jacks used to skid the condenser inside the building.
The second stage provided a greater challenge as the limited space inside the building reduced the amount of equipment that could be used inside. Three items needed to be lifted to the upper floor and the usual method of a crane was impossible due to the lack of space, so ALE devised an alternative solution using two gantries.
A fixed gantry supported a mobile gantry and the gantry structure was then skidded using flat skids. Four strand jacks were then used to consecutively lift a turbine, weighing 36t, a reducer, weighing 14t, and a generator, weighing 48t, onto the upper floor of the building to complete the installation.