Method for producing molded solid fuel

摘要

Disclosed is a method for producing a molded solid fuel, the method comprising: a pulverization step for pulverizing low-grade coal; a mixing step for obtaining a slurry by mixing said pulverized low-grade coal and a solvent oil; a dehydration step for obtaining a dehydrated slurry by heating and dehydrating said slurry; a solid-liquid separation step for obtaining a cake by separating said solvent oil from said dehydrated slurry; a drying step for obtaining powdery modified coal by heating said cake and further separating said solvent oil from said cake; a property adjustment step for obtaining a molding material made by blending, to said modified coal, 5-70 mass% of powdery coal for property adjustment with respect to the total mass of the molding material, said powdery coal for property adjustment having an aerated bulk density of 0.6 kg/L or greater and an angle of repose of 40° or less; and a molding step for obtaining a briquette-form molded solid fuel by pressurizing and molding said molding material.