| abstract |
An object of the present invention is to remove and separate valuable resources such as heavy metals and heavy metal compounds from a high-temperature gas containing heavy metal and heavy metal compound vapors while minimizing oxidation of collected materials and contamination of impurities, and recover and recycle them. Provide a way to An agglomeration device (12) is provided below a gas condensing and cooling device (7), where powdery low melting point valuables are recovered in a briquette shape. In this embodiment, a roll-type agglomeration device 12 is used. In this way, the low-melting-point valuables are first taken out as powder and formed into briquettes by the agglomeration device 12. Therefore, the low-melting-point valuables to be recovered have a smaller specific surface area as compared with the case where they are recovered as powder, so that they can be recovered in a state where they are not easily oxidized, and are excellent in transportability and handleability. [Selection] Fig. 2 |