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Method for reducing smelting power consumption of ferrovanadium alloy
The invention belongs to the technical field of iron and steel smelting, and particularly relates to a method for reducing power consumption in ferrovanadium alloy smelting. According to the method, the ferrovanadium alloy is smelted through an electro-aluminothermic reduction method, the ratio of the mass percent of Al2O3/(MgO + CaO) and the ratio of the mass percent of MgO/CaO in molten slag are adjusted twice before refining and in the refining process, the ratio of the mass percent of Al2O3/(MgO + CaO) is made to meet 5.5-6.5, meanwhile, the ratio of the mass percent of MgO/CaO is made to meet 1.8-2.0, then aftertreatment is conducted, and after-treatment is conducted, the ferrovanadium alloy is obtained. The method disclosed by the invention is low in power consumption, the quality of the smelted ferrovanadium alloy is good, and the additional value of the corundum slag is high.
本发明属于钢铁冶炼技术领域，尤其涉及一种降低钒铁合金冶炼电耗方法。本发明所述的方法采用电铝热还原法冶炼钒铁合金，在精炼之前和精炼过程中两次调整熔渣中Al2O3/(MgO+CaO)质量百分数的比值和MgO/CaO质量百分数的比值，使Al2O3/(MgO+CaO)质量百分数的比值满足5.5～6.5、同时使MgO/CaO质量百分数的比值满足1.8～2.0，之后进行后处理，得到质量好的钒铁合金和刚玉渣，本发明的方法电耗量低，冶炼的钒铁合金质量好，刚玉渣附加值高。
Method for reducing smelting power consumption of ferrovanadium alloy
The invention belongs to the technical field of iron and steel smelting, and particularly relates to a method for reducing power consumption in ferrovanadium alloy smelting. According to the method, the ferrovanadium alloy is smelted through an electro-aluminothermic reduction method, the ratio of the mass percent of Al2O3/(MgO + CaO) and the ratio of the mass percent of MgO/CaO in molten slag are adjusted twice before refining and in the refining process, the ratio of the mass percent of Al2O3/(MgO + CaO) is made to meet 5.5-6.5, meanwhile, the ratio of the mass percent of MgO/CaO is made to meet 1.8-2.0, then aftertreatment is conducted, and after-treatment is conducted, the ferrovanadium alloy is obtained. The method disclosed by the invention is low in power consumption, the quality of the smelted ferrovanadium alloy is good, and the additional value of the corundum slag is high.
本发明属于钢铁冶炼技术领域，尤其涉及一种降低钒铁合金冶炼电耗方法。本发明所述的方法采用电铝热还原法冶炼钒铁合金，在精炼之前和精炼过程中两次调整熔渣中Al2O3/(MgO+CaO)质量百分数的比值和MgO/CaO质量百分数的比值，使Al2O3/(MgO+CaO)质量百分数的比值满足5.5～6.5、同时使MgO/CaO质量百分数的比值满足1.8～2.0，之后进行后处理，得到质量好的钒铁合金和刚玉渣，本发明的方法电耗量低，冶炼的钒铁合金质量好，刚玉渣附加值高。
Method for reducing smelting power consumption of ferrovanadium alloy
一种降低钒铁合金冶炼电耗方法
YE MINGFENG (Autor:in) / WU JINSHU (Autor:in) / LI KAIMAO (Autor:in) / XIAO JUN (Autor:in)
06.09.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C22C
Legierungen
,
ALLOYS
/
C04B
Kalk
,
LIME
/
C22B
PRODUCTION OR REFINING OF METALS
,
Gewinnen oder Feinen von Metallen
/
F27D
Einzelheiten oder Zubehör für Industrieöfen, Schachtöfen, Brennöfen oder Retorten, soweit sie nicht auf eine Ofenart eingeschränkt sind
,
DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
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| British Library Online Contents | 2008
Manufacturing and metallurgy of ferrovanadium
| Engineering Index Backfile | 1905
Ferrovanadium slag-asbestos tailing refractory castable
| Europäisches Patentamt | 2015