FIELD: metallurgy.
SUBSTANCE: ferrosilicon melting method involves dosing of quartzite, carbon reducing agents and steel chips, loading of dosed charge materials to ore-melting electric furnace, carbometric reduction and tapping from the furnace; at that, to the furnace top there loaded is ferrosilicon with particle size of 0-15 mm, in quantity of 1.0 - 6.0% of the weight of quartzite loaded to the furnace. Ferrosilicon loaded to the furnace top is covered with charge in which the ratio of carbon to silicon is 0.41 - 0.48, and after the alloy is loaded to the furnace, the hourly active capacity of the furnace is increased by 0.3-0.8 mW.
EFFECT: obtaining ferroalloys in ore-melting electric furnaces at improving economic properties of ferrosilicon manufacture owing to remelting of small fractions and their involvement into marketable ferrosilicon in the form of lumps.
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| Title | Year | Author | Number |
|---|---|---|---|
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|
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| METHOD OF PRODUCING SILICON CARBIDE | 2016 |
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| METHOD OF TECHNICAL SILICON MELTING | 2014 |
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