Charging method for blast furnace burden
A blast furnace and mixed charging technology is applied in the field of raw material treatment in blast furnace and charging process in blast furnace production, and can solve the problems of phase change pulverization, impact of blast furnace production increase and coke saving, impact on air permeability and liquid permeability of lower part of blast furnace, etc. , to achieve the effect of reducing melting point, reasonable distribution of gas flow, and improving technical and economic indicators of ironmaking
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[0013] Example 1
[0014] First, the sintered ore with alkalinity 2.0 and the pellets with alkalinity 0.05 are mixed in a storage tank at a weight ratio of 80:20, and then transported to the top of the furnace through a conveyor belt or a charging car, and then loaded into the blast furnace. .
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[0015] Example 2
[0016] First leak the sintered ore with alkalinity 2.2 from the storage tank to the conveyor belt, and then leak the pellets with alkalinity 0.05 from the storage tank to the conveyor belt. The weights of the two ore into the furnace are matched. The ratio is: 65:35. After being mixed by a conveyor belt conveyor, it is transported to the top of the furnace via a blast furnace feeding belt conveyor or a charging car and loaded into the blast furnace.
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[0017] Example 3
[0018] First, the sintered ore with an alkalinity of 2.2 is leaked from the storage tank to the conveyor belt, and then pellets and natural lump ore with an alkalinity of 0.05 are leaked from the storage tank to the conveyor belt. The weight matching ratio of furnace ore is 70:25:5. After being mixed by a conveyor belt conveyor, it is transported to the top of the furnace via a blast furnace feeding belt conveyor or a charging car and loaded into the blast furnace.
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