Precious metal pyrolysis recovery system and method of operation thereof

Abstract

The application belongs to the technical field of precious metal recycling, and discloses a precious metal pyrolysis recycling system, which comprises a raw material area, a standby material area, a burning furnace A, a burning furnace B, a first burner, a second burner, a third burner, a secondary combustion chamber, an SNCR denitration area, a quenching tower, a first alkali washing device, a second alkali washing device, a water washing tower, a wet electric dust removal device, an induced draft fan, an activated carbon tower and a discharge chimney, etc.The beneficial effects of the application are as follows: the direct burning process is adopted, the degree of combustion is high, the amount of fly ash is low, the rapid burning of the rhodium-containing solid waste is realized, and the burning slag, i.e., the rhodium-containing enrichment, is obtained; the third burner, the secondary combustion chamber, the SNCR denitration area, the quenching tower, the first alkali washing device, the second alkali washing device, the water washing tower, the wet electric dust removal device, the induced draft fan, the activated carbon tower and the discharge chimney are matched, the high-temperature flue gas of burning is realized to be environmentally-friendly and efficiently purified, and the high-standard flue gas emission production requirement is realized.

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