| 摘要 |
<p>Provided is a method for preventing deposition of ash by precisely predicting ash deposition inside a heating furnace, in which the fuel is a mixture of a metal compound or a metal-containing compound added to a variety of types of solid fuels including bony coal, in order to find the appropriate mixture ratio. The method for preventing deposition of ash inside a heating furnace comprises: a step (S1) for measuring the composition of the ash component of a plurality of types of solid fuel scheduled for use in a heating furnace and the inorganic composition of a metal compound or a metal-containing compound; and a step (S2) for determining a specific mixture ratio that provides a composition of an ash component having a slag ratio that is no greater than a standard value, said determination being made in accordance with the composition of the ash component of solid fuel obtained by adding and mixing the metal compound or the metal-containing compound at a plurality of mixture ratios, and in accordance with a slag ratio representing the ratio when a specific amount of ash component precalculated for solid fuel obtained by mixing at a plurality of mixture ratios becomes slag at a specific atmospheric temperature and in a specific atmospheric gas composition. The method for preventing deposition of ash inside a heating furnace also comprises a step (S3) for feeding a mixture obtained by adding and mixing the metal compound or the metal-containing compound at a predetermined mixture ratio as fuel to the heating furnace.</p> |
