| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for reusing a used refractory generated in an ironworks, in which the amount of the spent refractory to be discarded can be made zero by making effective use of the whole spent refractory. <P>SOLUTION: This method for reusing the used refractory comprises a step to recover the used refractory generated in the ironworks and sort it into groups having the compositions different from one another, a step to crush and classify each of the sorted groups by using a crushing/classifying equipment line 23 arranged in the ironworks and a step to mix a part of the crushed/classified refractory with a raw material as it is in a refractory manufacturing facility 24 in the ironworks and manufacture a new refractory and use the manufactured new refractory in the ironworks, use another part of the crushed/classified refractory as it is as a subsidiary raw material for manufacturing and refining iron and ship substantially all of the remainder to the inside and outside of the ironworks as a civil engineering material. The line 23 has a grizzly 1, a breaker 2 for crushing the clumpy refractory primarily, a jaw crusher 3 for crushing the primarily crushed refractory secondarily and an impeller mill 4 and a hammer mill 5 for pulverizing the secondarily crushed refractory. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
