| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an apparatus for recovering slag from waste capable of inexpensively producing firm aggregate and effectively utilizing the combustion heat of the waste as clean gas. SOLUTION: This slag recovering apparatus having forming devices 1, 11 for molten slag for subjecting the waste (d) to a high-temp. treatment, a water granulating device 7 for water cooling the resulted molten slag a to form water granulated slag (b) and a rotary kiln 16 for crystallizing the water granulated slag (b) is provided with a slag crushing device 14 before or behind the rotary kiln 16. The rotary kiln 16 which recovers the heat generated by the high-temp. treatment of the waste by a ceramic heat exchanger 18 and uses the heat as a heat source is preferable. At this time, a fan 15 for feeding the hot air as the heat source is preferably installed upstream of the rotary kiln 16. A dust collector to be exclusively used for removing the dust component in exhaust gases may be installed to the rotary kiln 16.</p> |
