Method for recycling and harmless treating of waste electronic glass
A kind of harmless treatment, electronic technology, applied in the direction of improving process efficiency, to achieve the effect of flexible technology, large processing capacity and proper treatment
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Embodiment 1
[0038] Take waste electronic glass fragments obtained after dismantling, crushing and sorting waste color TV cathode ray tubes, with a lead content of 17.9% and a particle size of 3-23 mm, and then grind it with a ball mill until the particle size is 1-23 mm. 2.5 mm, mixed with lead concentrate and zinc hydrosmelting slag, the amount of waste electronic glass scrap is 31.1% of the total mass of lead concentrate and zinc hydrosmelting slag, and then lead concentrate Anthracite with a total mass of 4.5% lead-containing raw materials and zinc hydrometallurgy slag. The particle size of the anthracite is 1.5-3.5 mm. 2 The mass ratio is 1:1 and CaO:SiO 2 Pyrite, iron oxide and lime are added at a mass ratio of 0.6:1 to form a final mixture consisting of Pb32.9%, Zn6.03%, SiO 2 12.1%, Fe12.1%, CaO7.26%, S16.2%, Cu0.2%, the final mixture is ground to less than 1mm, and then the mixture is sprayed into the flash smelting reactor with air, Smelting at 1250-1450°C produces crude lead, ...
Embodiment 2
[0040] Take the waste electronic glass fragments obtained after dismantling, crushing and sorting the cathode ray tubes of electronic computers, the mass concentration of lead is 21.6%, the particle size is 6-19 mm, and it is ground again with a ball mill until the particle size is 1-2.5 mm , mixed with lead concentrate, lead-containing copper hydrosmelting slag and lead-precious metal system slag. 8% of the total mass of raw materials, then add coke with a total mass of 4.9% of the total mass of lead-containing raw materials of lead concentrate, lead-containing copper hydrosmelting slag and lead-precious metal system slag, the coke particle size is 1.5-3 mm, and then add Medium Fe:SiO 2 The mass ratio is 1:1.05 and CaO:SiO 2 Pyrite, iron oxide and lime are added at a mass ratio of 0.68:1 to form a final mixture consisting of Pb40.6%, Zn4.61%, SiO 2 13.5%, Fe12.86%, CaO9.18%, S17.42%, Cu0.53%, the final mixture is ground to less than 1mm, and then the mixture is sprayed into...
Embodiment 3
[0042] Take the mixed waste electronic glass fragments obtained after dismantling, crushing and sorting waste color TV sets and black and white TV cathode ray tubes. The mass concentration of lead is 12.37%, and the particle size is 3.5-40 mm. It is ground again with a ball mill. To a particle size of 1.5-3.0 mm, it is mixed with lead concentrate, zinc hydrosmelting slag and lead precious metal system slag, and the amount of waste electronic glass scrap is three 15.5% of the total mass of lead-containing raw materials, then add coke with 5.2% of the total mass of lead-containing raw materials including lead concentrate, zinc hydrometallurgy slag and lead precious metal system slag. Medium Fe:SiO 2 The mass ratio is 1:1.1 and CaO:SiO 2 Add pyrite, iron oxide and lime at a mass ratio of 0.72:1 to form a final mixture of Pb45.86%, Zn5.31%, SiO 2 15.54%, Fe14.13%, CaO11.19%, S15.6%, Cu0.08%, the final mixture is ground to less than 1mm, and then the mixture is sprayed into the f...
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