| 摘要 |
PURPOSE:To enable excellent dispersion of solid particles, by a method wherein a premixer, which is capable of freely controlling a mixing ratio of solid particles in slurry fuel, is located in a burner device body or in the vicinity thereof. CONSTITUTION:Slurry fuel F and steam S are fed to a premixing chamber 18, and a mixing ratio of fuel is regulated through regulation of a mixing ratio of the steam S per unit quantity of the fuel F. With decreased mixing ratio of solid fuel particles, viscosity of slurry is also decreased, and dispersion of the particles is improved during injection of a burner 15. In which case, since an excessive increase in a mixing amount of the steam causes reduction in combustibility, a mixing ratio will be determined in consideration of this point. A mixing ratio is adjusted through respective adjustment of flow rates of the fuel F and the steam S. In the fuel having a mixing ratio, regulation of which is completed, solid particles are dispersed by the steam S for spraying within a burner 15 and are injected. |
