METHOD OF DRYING PLANT BIOMASS FUEL, AND BIOMASS POWER GENERATION FACILITY

To provide a method of drying plant biomass fuel, capable of preserving the environment by using used floorings primarily made from corncobs as biomass fuel and of efficiently reducing the water content of used floorings, and a biomass power generation facility.SOLUTION: A flooring preheating device 20 that dries used floorings to a water content therein of 20% or less is provided in a biomass power generation facility. The used floorings dried by the flooring preheating device 20 is pyrolyzed by a gas generating device 11. A plurality of heat sources in the biomass power generation facility 10 are each used as preheating means of the flooring preheating device 20. The plurality of heat sources are used in the order of lower temperature to gradually preheat used floorings. Used floorings are dried to a water content of 20% or less.SELECTED DRAWING: Figure 1 【課題】コーンコブを主体とする使用済み床材を植物性バイオマス燃料として使用することで環境を保全すると共に、使用済み床材の含水量を効率的に低減することが可能な植物性バイオマス燃料の乾燥方法及びバイオマス発電施設を提供する。【解決手段】使用済み床材の含有水分量を20％以下まで乾燥させる床材余熱装置２０を設ける。該床材余熱装置２０で乾燥させた使用済み床材をガス発生装置１１で熱分解する。床材余熱装置２０の予熱手段にバイオマス発電設備１０内の複数の熱源を使用する。温度の低い熱源から順に段階的に予熱する。使用済み床材の含有水分量を20％以下まで乾燥させる。【選択図】 図１