A method for recovering arsenic from copper smelting dust
A technology for recovering arsenic and copper smelting, applied in the field of metallurgy, can solve the problems of controlling the amount of water spray, uneven distribution of smoke and dust, wet electrostatic precipitator, etc., to improve the production environment and avoid arsenic pollution.
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[0011] Such as figure 1 As shown, the system for recovering arsenic from copper smelting dust according to the present invention includes a waste heat boiler cooling system 1, an electric dust collector dust collection system 2, and a SO 3 Removal system, smoke and dust rapid cooling system, arsenic recovery system5. The SO 3 The removal system includes a reactor 3a in which the first smoke inlet 3b on the top communicates with the dust outlet of the electrostatic precipitator dust collection system 2, and a group of lime powder or baking soda powder injection inlets 3c are provided on the top of the reactor, and the lime powder Or the baking soda powder injection inlet 3c can be evenly distributed on the two circumferential surfaces of the cone part and the cylindrical part of the reactor 3a top around the reactor barrel wall, and the powder spraying effect will be better. The lower end of the ash hopper 3d at the bottom of the reactor is provided with a dust discharge port...
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