Process for utilizing waste smelting dregs of rare-earth ferrosilicon
A rare earth ferrosilicon and waste slag technology is applied in the field of utilization of rare earth ferrosilicon smelting waste, which can solve the problems of affecting environmental protection, failure to utilize rare earth ferrosilicon smelting waste, waste, etc., so as to reduce waste slag, reduce comprehensive production costs, and reduce stacking field effect
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[0010] Example 1:
[0011] The method for utilizing rare earth ferrosilicon smelting waste slag of the present invention is to add rare earth ferrosilicon smelting waste slag, lime equivalent to 10% of the added weight of the waste slag, 5% waste steel equivalent to the added weight of the waste slag, and equivalent to waste slag. 25% of the weight of ferrosilicon and 5% of the weight of the waste slag are added to the rare earth concentrate, which is added to the furnace for heating. After the above-mentioned charge starts to melt, it is stirred. When the charge is completely melted, the discharge is poured into the ingot mold. After cooling, the slag and iron are separated.
Example Embodiment
[0012] Example 2:
[0013] The method for utilizing rare earth ferrosilicon smelting waste slag of the present invention is to add rare earth ferrosilicon smelting waste slag, 25% lime equivalent to the added weight of the waste slag, 10% waste steel equivalent to the added weight of the waste slag, and equivalent waste slag. 30% by weight of ferrosilicon and 10% of rare earth concentrate by weight of waste slag are added to the furnace for heating. After the above-mentioned charge starts to melt, it is stirred. When the charge is completely melted, the discharge is poured into the ingot mold. After cooling, the slag and iron are separated.
Example Embodiment
[0014] Example 3:
[0015] The method for utilizing rare earth ferrosilicon smelting waste slag according to the present invention is to add rare earth ferrosilicon smelting waste slag, lime equivalent to 30% of the added weight of the waste slag, 15% waste steel equivalent to the added weight of the waste slag, and equivalent to waste slag. 35% by weight of ferrosilicon and 15% of rare earth concentrate by weight of waste slag are added to the furnace for heating. After the above-mentioned charge starts to melt, stir it. When the charge is completely melted, the discharge is poured into the ingot mold. After cooling, the slag and iron are separated.
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