Device and method for high-vacuum lead and thallium removal and indium recovery of indium

The device comprises a furnace body and a furnace cover, a crucible is arranged in the furnace body, a weighing assembly is arranged on the lower side of the crucible, the crucible is coated with a heating piece, the heating piece is coated with a heat preservation layer, an annular material groove is formed in the upper portion of the crucible, and a set of ash blocking covers are arranged in the annular material groove. The invention also provides a method for removing lead and thallium from indium in high vacuum and recovering indium, which comprises the following steps of: heating indium metal to be treated, removing lead and thallium in vacuum and recovering indium. According to the device, indium metal and impurities are in a volatile state through heating, the dust blocking cover is arranged and used for distributing indium steam and collecting condensed indium, the volatilization amount is detected through the weighing assembly, lead and thallium impurity elements in the indium metal are deeply remove