| 摘要 |
<p>PURPOSE:To recover and reutilize heavy metals by removing the heavy metals contained in the flue gas from a furnace and separately recovering the heavy metals by the b.p. difference between the metals. CONSTITUTION:A heavy metal separative extractor module 4 having plural rotatable tubes 6, through which a coolant is circulated, is provided in plural stages in the flue 3 of a smelting furnace 1, the coolant passing through the tube 6 of each module 4 is allowed to differ in temp. from each other by a specified temp., and a scraper 13 is abutted on the tube 6.</p> |
