RU95111301A - Method of producing cast iron in cupola furnace - Google Patents

Method of producing cast iron in cupola furnace

Info

Publication number
RU95111301A
RU95111301A RU95111301/02A RU95111301A RU95111301A RU 95111301 A RU95111301 A RU 95111301A RU 95111301/02 A RU95111301/02 A RU 95111301/02A RU 95111301 A RU95111301 A RU 95111301A RU 95111301 A RU95111301 A RU 95111301A
Authority
RU
Russia
Prior art keywords
loaded
amount
waste
components
refining
Prior art date
Application number
RU95111301/02A
Other languages
Russian (ru)
Other versions
RU2138561C1 (en
Inventor
Н.Н. Сафронов
Original Assignee
Камский политехнический институт
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Камский политехнический институт filed Critical Камский политехнический институт
Priority to RU95111301A priority Critical patent/RU2138561C1/en
Publication of RU95111301A publication Critical patent/RU95111301A/en
Application granted granted Critical
Publication of RU2138561C1 publication Critical patent/RU2138561C1/en

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]

Landscapes

  • Manufacture And Refinement Of Metals (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)

Abstract

FIELD: ferrous metallurgy. SUBSTANCE: method includes introducing into cupola furnace, as fuel, coke loaded from above, natural gas blown in through jets, and metal fusion batch and flux followed by their heating and smelting. Distinguishing feature of method is that, natural gas is blown in simultaneously through lower part of hearth near the bottom of cupola furnace and then, after blowing-in period, following components are introduced into gas stream: refining, modifying, and alloying agents (production disperse wastes) as metal fusion batch. As iron-containing components, big-house dust, or shotblast unit waste, or dross in amount 0-50% based on loaded from above metal fusion batch are used. Alloying components are wastes from calcium carbide production in amount 0-50% based on loaded from above metal fusion batch. Modifying components are disperse wastes from ferro-silico-manganese production and refining ones are ferro- silico-magnesium in amount 0-100% in dependence on loaded corresponding components from above. EFFECT: increased quality and reduced cost price of cast iron.

Claims (1)

Изобретение относится к черной металлургии и направлено на повышение качества чугуна и уменьшения его стоимости. Способ включает ввод в вагранку в качестве топлива кокса, загружаемого сверху, природного газа, вдуваемого через фурмы, металлошихты и флюса с последующим их нагревом и расплавлением. Отличие способа состоит в том, что природный газ одновременно вдувают и через нижнюю часть горна у пода вагранки, а затем, после задувочного периода, в его поток вводят в качестве металлошихты, рафинирующих, модифицирующих и флюсующих элементовдисперсные отходы производства, в качестве желесодержащих которых используют бигхаузную пыль, или отходы дроби дробеметного оборудования, или окалину в количестве 0, + 50%. от загружаемой металлошихты сверху, в качестве флюсующих - отходы производства карбида кальция в количестве 0,1-50% от загружаемого флюса сверху, в качестве модифицирующих -дисперсные отходы ферро-силико - магния, и рафинирующих - дисперсные отходы CaF2 в количестве 0,1 - 100%, в зависимости от загружаемого количества соответствующих компонентов сверху.The invention relates to ferrous metallurgy and is aimed at improving the quality of cast iron and reducing its cost. The method includes introducing into the cupola as fuel coke, loaded from above, natural gas, blown through tuyeres, metal batch and flux with their subsequent heating and melting. The difference of the method lies in the fact that natural gas is simultaneously blown through the lower part of the hearth at the bottom of the cupola, and then, after a blowing period, metal waste, refining, modifying, and fluxing elements, is introduced into its stream as dispersed industrial waste, which is used as iron containing waste dust, or waste fractions of shot blasting equipment, or scale in the amount of 0, + 50%. from loaded metal charge from above, as fluxing - waste from production of calcium carbide in the amount of 0.1-50% of loaded flux from above, as modifying - dispersed waste of ferrosilicon - magnesium, and refining - dispersed waste CaF 2 in the amount of 0.1 - 100%, depending on the loaded amount of the respective components on top.
RU95111301A 1995-06-30 1995-06-30 Method for producing cast iron in cupola RU2138561C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU95111301A RU2138561C1 (en) 1995-06-30 1995-06-30 Method for producing cast iron in cupola

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU95111301A RU2138561C1 (en) 1995-06-30 1995-06-30 Method for producing cast iron in cupola

Publications (2)

Publication Number Publication Date
RU95111301A true RU95111301A (en) 1997-04-10
RU2138561C1 RU2138561C1 (en) 1999-09-27

Family

ID=20169613

Family Applications (1)

Application Number Title Priority Date Filing Date
RU95111301A RU2138561C1 (en) 1995-06-30 1995-06-30 Method for producing cast iron in cupola

Country Status (1)

Country Link
RU (1) RU2138561C1 (en)

Also Published As

Publication number Publication date
RU2138561C1 (en) 1999-09-27

Similar Documents

Publication Publication Date Title
RU2090622C1 (en) Method of producing iron from iron-containing materials in converter
ATE208426T1 (en) METHOD FOR PRODUCING LIQUID PIG IRON
EP0318896A3 (en) Method for smelting reduction of iron ore and apparatus therefor
KR930019835A (en) Molten reduction method with high productivity
NZ329615A (en) Process for producing puzzolanes, synthetic blast furnace slags, belite or alite clinkers as well as pig iron alloys from oxidic slags and arrangement for carrying out said process
MX9707767A (en) Iron smelting process and plant according to the multiple zone smelting process.
Makhambetov et al. Research of physical and chemical characteristics of the new complex calcium-containing ferroalloy
GB1467948A (en) Continuous production of steel
DE59801359D1 (en) METHOD FOR PRODUCING PIG IRON
RU95111301A (en) Method of producing cast iron in cupola furnace
CA2052126A1 (en) Molten metal producing and refining method
CA1311618C (en) Process for melting scrap iron, sponge iron and/or solid pig iron or the like
US3715202A (en) Method for desulphurizing pig iron
JPS57198205A (en) Production of molten metal from powder and granular ore
ATA133696A (en) METHOD FOR MELTING OXIDIC SCALES AND COMBUSTION RESIDES AND DEVICE FOR CARRYING OUT THIS METHOD
JP2747524B2 (en) Desulfurization method of raw material in plasma combustion type cupola
SU964003A1 (en) Method for blast furnace smelting
JPS56123310A (en) Integrated steel making method
SU729251A1 (en) Method of steel casting in hearth steel-melting set
SU808542A1 (en) Slag-forming mixture
RU93038971A (en) METHOD OF DOMAIN MELT OF TITANIUM MAGNETITE RAW MATERIALS
SU1636465A1 (en) Method of processing tin-plate waste
Fedorovich et al. Ferrous Metallurgy Institute Method of Melting Steel
Ito et al. Molten iron from DRI
Fruehan A Nontechnical Introduction to Electric Furnace Steelmaking