SU301357A1 - METHOD OF OBTAINING FERROSILICOCALCIA - Google Patents
METHOD OF OBTAINING FERROSILICOCALCIAInfo
- Publication number
- SU301357A1 SU301357A1 SU1267949A SU1267949A SU301357A1 SU 301357 A1 SU301357 A1 SU 301357A1 SU 1267949 A SU1267949 A SU 1267949A SU 1267949 A SU1267949 A SU 1267949A SU 301357 A1 SU301357 A1 SU 301357A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- iron
- calcium oxide
- ferrosilicocalcia
- obtaining
- mixture
- Prior art date
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 16
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium monoxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 14
- 229910052742 iron Inorganic materials 0.000 description 8
- 239000000292 calcium oxide Substances 0.000 description 7
- 239000000203 mixture Substances 0.000 description 6
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical class [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000519 Ferrosilicon Inorganic materials 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N Silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N Silicon monoxide Chemical class [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011044 quartzite Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
Description
Известен способ получени ферросиликокальци в дуговой электропечи из шихты, состо щей из окиси кальци , кварцита, углеродсодержащего материала и железа, при котором железо вводитс в шихту в количестве не более 0,5 от веса окиси кальци .A known method for producing ferrosilicon in an electric arc furnace of a mixture consisting of calcium oxide, quartzite, carbon-containing material and iron, in which iron is introduced into the mixture in an amount of not more than 0.5 by weight of calcium oxide.
Отличительной особенностью предлагаемого способа вл етс введение железа в шихту перед началом плавлени в количестве 0,6-2,4 от веса окиси кальци , а также введение при этом окиси кальци и углеродсодержащего материала в шихту в виде брикетов , содержащих 70-85% окиси кальци и 15-30% углерода. Предложенный способ обеспечивает получение сплава с содержанием кальци 15-21%, железа 15-23% и кремний - остальное.A distinctive feature of the proposed method is the introduction of iron into the mixture before the start of melting in the amount of 0.6-2.4 by weight of calcium oxide, as well as the introduction of calcium oxide and carbon-containing material into the mixture in the form of briquettes containing 70-85% calcium oxide and 15-30% carbon. The proposed method provides an alloy with calcium content of 15-21%, iron 15-23% and silicon - the rest.
Введение железа в шихту в указанном выше количестве обеспечивает повышение степени извлечени компонентов в щихте и снижает удельный расход электроэнергии, особенно при применении углеизвестковых брикетов .The introduction of iron into the mixture in the amount indicated above provides an increase in the degree of extraction of the components in baking and reduces the specific power consumption, especially when using carbon-lime briquettes.
Преимущества предлагаемого способа св заны с тем, что при введении железа в шихту в количестве 0,6-2,4 от веса окиси кальци , образующийс в процессе плавки, сплав оказываетс т желее шлака и промежуточных соединений. Поэтому карбид кремни , образующийс как промежуточный продукт, будет находитьс не под сплавом, как это имеет место в известном способе, а над металлической фазой в зоне высоких температур вместе с окислами кальци и кремни и вступать во взаимодействие с ними.The advantages of the proposed method are related to the fact that when iron is introduced into the mixture in an amount of 0.6-2.4 by weight of calcium oxide, formed during the smelting process, the alloy turns out to be heavier than slag and intermediate compounds. Therefore, silicon carbide, which is formed as an intermediate product, will not be under the alloy, as is the case in the known method, but above the metal phase in the high-temperature zone together with calcium and silicon oxides and interact with them.
Процесс ведут в одну стадию.The process is carried out in one stage.
Предмет изобретени Subject invention
Способ получени ферросиликокальци в дуговой электропечи проплавлением шихты с введением в нее железа, отличающийс тем, что, с целью повышени степени извлечени компонентов из щихты и снижени удельного расхода электроэнергии, железо ввод т перед началом плавлени в количестве 0,6-2,4 от веса окиси кальци .The method of producing ferrosiliconum in an electric arc furnace by penetration of the charge with the introduction of iron into it, characterized in that, in order to increase the degree of extraction of components from the powder and reduce the specific energy consumption, iron is introduced before the start of melting in an amount of 0.6-2.4 by weight calcium oxide.
Publications (2)
Publication Number | Publication Date |
---|---|
SU301357A1 true SU301357A1 (en) | |
SU260211A1 SU260211A1 (en) |
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