| 摘要 |
<p>A raw material for sintering of 100% in total is blended so as to adjust iron-containing dust and/or sludge to 60% or more, and coarse grains having a grain size of 2 mm or larger to 20% or more on the weight basis, one-third or less of the total amount of addition of coke breeze is added as a fuel, the blend is kneaded and granulated using a vibration kneading granulator to thereby produce granulated grains, the residual portion of the total amount of addition of coke breeze is added to the granulated grains, the blend is subjected to exterior coating granulation using a rolling type granulator, thus-granulated raw material for sintering is screened, and a fraction having a grain size of 1 mm or larger is used for sintering, making it possible to sinter microparticulate dust and microparticulate sludge as main raw materials, which have conventionally been used only to a limited amount of use.</p> |
