Avoiding Sole Plate Cracks

The crack will eventually rupture the sole plate and continue to weaken the side plate to a point where the ensuing deformation of the grate box will cause the grate girders to drop down from their supports. The cracks will also create a leak, where ash particles will be blown out with the escaping primary combustion air.

Those cracks are the results of a more rigid design of the Volund grate after 1990 and especially after 1995. No thermal dilatation is possible at either end, so each elevated change in temperature will potentially create new cracks.

Dublix Engineering’s solution is to make adjustments, based on extensive experience, in the sole plates and the vertical side plates.

As a result, future formation of cracks is avoided, and money is saved on repairs.