Modernization of KM-75-40 boiler by installing a fluidized bed furnace for bark and wood waste combustion
Journal: Vestnik IGEU
Year: 2026

KM-75-40 boilers have been widely used at pulp and paper mills in Russia for the utilization of bark and wood waste (BWW). Their design with inclined grates and chain stoker furnaces, when firing fuel with moisture content above 50 %, leads to reduced steam-rated capacity, the need for constant oil support firing, intensive slagging of heating surfaces, and frequent outages. Under the current transition to carbon-neutral technologies, there is a demand for higher efficiency, and environmental pe