| 摘要 |
<p>PURPOSE: To effectively recover excessive mercury discharged outside a lamp or mercury from wastes contg. mercury in a ventillation process of a fluorescent lamp production line by installing a high speed rotating blade in a part of piping in a ventillation system for air or other gas contg. mercury vapor. CONSTITUTION: When this device is applied to an equipment for recovering mercury from a crushed material of waste fluorescent lamps contg. mercury, a crushed material 2 such as waste fluorescent lamps contg. mercury in a heating vessel 4 is heated by a heater 1 and agitated by an agitating blade 3. In this way, mercury contained in the crushed material 2 is evaporated and led to a carbon filter 7 through a ventillation duct and a dry turbo pump 6. The dry turbo pump 6 includes a high speed rotating blade, and by the rotation of the rotating blade, mercury vapor is combined and integrated and recovered as metal mercury by a mercury trap 8. On the other hand, a trace of mercury which has not been recovered here is recovered by the carbon filter 7.</p> |
