| 摘要 |
<p>PURPOSE:To recover separated, evaporated metal by liquid carrier metal and continuously take it out by letting liquid carrier metal flow uniformly from the high level side to the low level side on the liquid carrier metal holding part under an inclined evaporated metal recovering plate. CONSTITUTION:A metal 29 to be evaporated in an evaporation crucible 2 is heated and evaporated by irradiating electron rays from an electron gun 3 in a vacuum container 1. After passing a focusing device 4, a laser beam 5 of a specific frequency is projected on this evaporated metal and metal to be separated is ionized selectively. Then, electrolytic metal is adsorbed by a recovering plate 7, separated and recovered. Neutral evaporating metal is brought into contact with the lower surface of a neutral metal recovering plate 8 which is inclined by a prescribed angle. The lower surface of this recovering plate 8 is covered with stretched wire, etc., as a liquid carrier metal holding structure and liquid carrier metal is poured uniformly from the high level side to the low level side in a storing tank 16. Said neutral evaporated metal is recovered by this carrier metal, flows and is taken out outside the vacuum container 1 through a recovering through 19, a recovering tank 20, a duct 21 and separated recovered by a neutral metal separating and refining device 22 from the carrier metal.</p> |
