Method for hydrogen-based smelting of lead-containing concentrate and treatment of lead-based solid waste
A hydrogen-based and concentrate technology, applied in the fields of hydrogen-based smelting of lead-containing concentrates and treatment of lead-based solid waste, can solve the problems of high energy consumption, low thermal efficiency, and large carbon emissions, and achieve high energy density and high thermal efficiency. , the effect of reducing carbon emissions
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Embodiment 1
[0073] Lead concentrates (including PB: 50 %) and fuse (Feo, SIO 2 After CAO), according to the quality ratio 7: 1 ingredients, add the melting furnace of the hydrogen base side 1 to add the melting furnace 1, and the oxygen -rich air is sprayed into the melting pond from the side of the hydrogen base side. The oxygen -rich air is oxidized and melted to obtain coarse lead, flue gas and lead scum. Hydrogen base side blow melting refining furnace flue gas SO 2 The concentration is greater than 20 %. After the heat -heat boiler cools down, the dust collection system is obtained after the dust collection system is obtained. The dregs containing lead-containing dregs is PBO-Feo-SIO 2 Type, PBO-Feo-SIO 2 -CAO type, PBO-Feo-SIO2 -Cao-Zno type. The oxygen concentration in the oxygen -rich air is 80 %, and the melting temperature of the hydrogen base is 1100 ° C.
[0074] The above -mentioned melting lead slag is sent to the hydrogen base side to be returned to the original furnace to be r...
Embodiment 2
[0077] The difference from the embodiment 1 is that the operating temperature of the hydrogen -based restoration of the hair stove is 1350 ° C.
Embodiment 3
[0079] The difference from the embodiment 1 is that the operating temperature of the hydrogen -based restoration of the hair stove is 1500 ° C. The hydrogen -based volatile furnace produces flue gas, stab, coarse lead, and raw iron.
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