It can be a tricky task to point out a damp bale, particularly so if only part of the bale is wet. LBP Engineering have assisted BWSC through a series of experiments aimed atdetecting moisture in the comprehensive biofuel mass gathered at Sleaford.
“The plant operates four bale lines, across four conveyor belts, leading up to the incinerator. A big crane lifts two times six bales at a time onto the belt. We have affixed three microwave transmitters to the crane to scan all bales and measure the humidity levels at three different points before the bales are placed on the conveyor belt. This gives us better control and allows for a more stable operation of the plant because we are duly warned about the humidity level of each bale. In turn, this allows us to better calculate how to incinerate each bale,” explains LBP project manager Lars Bjarne Pedersen.
In addition to applying microwave transmitters on the crane, LBP Engineering have optimised operations at the Sleaford plant by introducing a measuring procedure already in the barn where bales are stacked upon arrival. This makes it easier to reject useless bales at an early stage.
Each year, the Sleaford plant contributes to the UK green national account by saving roughly 150.000 tons of CO2.