2013 0(TTPT)

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   Short abstract

 

Pages:

48 - 53

Language:

RU

Ref.:

1


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2013_0(TTPT)_6.pdf

 

 

DESIGN DECISIONS ON USE OF CONVERTER GAS FOR IRON-ORE RAW MATERIAL RESTORATION

Gichev Yu.A., Pereverzeva O.V.

National Metallurgical Academy of Ukraine (NMetAU), Dnepropetrovsk, Ukraine


Citation:

Gichev, Yu.A. and Pereverzeva, O.V., (2013) Design decisions on use of converter gas for iron-ore raw material restoration, Modern Science: Researches, Ideas, Results, Technologies, Iss. #0(TTPT), PP. 48 - 53.


Keywords:

converter gas; iron ore raw materials; gas outlet path; reactor reducer; metallization


Abstracts:

Two variants of reactor-restoration placement on a converter gas-outlet tract were offered: with high-temperature gas using (before gas purification) and at cooled gas using (after gas purification). High-temperature gas reactor placement allows to use gas reduction potential at the same time with his physical heat utilization. At cooled gas using the gas heating before its supply to the reactor is carried out by partial gas burning.
Converter gas using as a converter creates preconditions for development of the converter gas technological use effective system, including receiving metalized iron-ore raw materials with its following using in converter melting and CO emission elimination in the atmosphere with nonflammable converter gas.
Into a problem of this entered work: development of the design decisions connected with placement of converter gas using system; definition of technological indicators of design decisions main versions.
The working volume of the reactor includes four lined fire-resistant materials through the mines, adapted, thanks to the equipment their grid for filtering of raw materials layer cross gas stream. The gas supply to mines is carried out in parallel. Depending on service conditions the reactor can work in a mode of a motionless and moving layer.
The specific outlet of the metalized pellets at using high-temperature converter gas made up 36,4 kg/t of steel, and the cooled gas of 17,6 kg/t steel. Using of the received metalized pellets allows to reduce a consumption of cast iron on steel smelting and accordingly to reduce its cost price. The specific expense of the oxidized pellets when using high-temperature gas makes 48,2 kg/t of steel, and the cooled gas after partial burning – 22,0 kg/t steel. Constructive characteristics of the reactor when using the cooled gas in this case are the same as when using high-temperature gas. Design decisions and specific outlet of a metalized product allow to carry out an estimate of efficiency of technical and economic system of converter gas using for iron-ore raw materials restoration.


References:

  1. Gichov Y.A. View on a problem of waste converter gas using // EastEurope magazine of modern technologies.-2004.-2(8).-p.30-36.

 

 
     

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