Sintering method of super-thick material layer sinter
A sintering method and technology of sintering ore, which is applied in the field of metallurgy, can solve problems such as the lack of uniform sintering of the material layer, the clogging of the particle gaps in the material layer, and the increase in the resistance of the material layer, so as to reduce the air leakage rate, reduce the concentration of NOx emissions, and reduce carbon dioxide emissions. The effect of content increase
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Embodiment 1
[0032] (1) Ingredients: The order of feeding is iron-containing raw materials, coke powder, quicklime, limestone, dolomite, returned ore, and dedusting ash. The mass percentages of each raw material are: iron-containing raw materials=88, fuel=4.0, quicklime 6.0 , limestone=1.0, dolomite=1.0; return ore and dedusting ash are used as sintering cycle materials, and the dosage is calculated according to "return ore / dust ÷ (iron-containing raw material + fuel + quicklime + dolomite + limestone)", return ore = 14.1%, dust removal=1.3. Each material is fed to the mixing belt 1 through the batching scale, and a distributor (after the dolomite feeding point) is added on the mixing belt 1 to form a groove in the middle of the material, and the desulfurization wastewater (preheating the wastewater with steam to increase the material temperature) ) into the groove of the material to digest the quicklime in advance.
[0033] (2) Mixing and granulation: iron-containing raw materials, fuel,...
Embodiment 2
[0040] (1) Ingredients: The order of feeding is iron-containing raw materials, coke powder, quicklime, limestone, dolomite, returned ore, and dedusting ash. The mass percentages of each raw material are: iron-containing raw materials = 87.7, fuel = 4.0, quicklime 6.5 , limestone = 0.8, dolomite = 1.0; return ore and dedusting ash are used as sintering cycle materials, and the dosage is calculated according to "return ore / dust ÷ (iron-containing raw material + fuel + quicklime + dolomite + limestone)", return ore = 15.1, dust removal = 1.5. Each material is fed to the mixing belt 1 through the batching scale, and a distributor (after the dolomite feeding point) is added on the mixing belt 1 to form a groove in the middle of the material, and the desulfurization wastewater (preheating the wastewater with steam to increase the material temperature) ) into the groove of the material to digest the quicklime in advance.
[0041] (2) Mixing and granulation: iron-containing raw mater...
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