Iron-ore SInterIng ProceSS oPtImIzatIon Optymalizacja prOcesu aglOmeracji rudy żelaza The work deals with examination of the influence of the ratio between iron ore concentrate and iron ore on quality of produced iron ore sinter One of the possibilities to increase iron content in sinter is the modification of raw materials ratio.
sintering process, ores, additives, recycled sinter and coke breeze are blended in a mixing drum This mixture is then loaded onto a moving grate and ignited As the mixture proceeds along with the grate, air is drawn downwards through the sintering bed by powerful fans , Iron ore first undergoes a solid-state reduction in the pre-
The iron ore blend, limestone, dolomite, quicklime and fuel are matched to produce sinter with TFe575%, SiO2482%, R20, MgO20% The chemical compositions and ratios of raw materials are shown in Table 1 The test used four kinds of solid fuel, one of which is coke breeze, the others are three types of biomass fuels.
Modeling Sintering Process of Iron Ore 25 Fig 2 Thermal cycle of the materials in the sinter strand Several attempts have been done to predict the final properties of the sinter product (Water et al 1989, Kasai et al 1989, 1991) The most important parameters are reducibility.
The iron ore sinter which was produced by using coke breeze without sieving yielded low productivity for both sinter machine and blast furnace Furthermore, using coke breeze without sieving in sintering of an iron ore decreases the vertical velocity of sinter machine and increases the reduction time
Effects of anthracite replacing coke breeze on iron ore sintering - Volume 105 Issue 5 - Deog-Won Ri, Byung-Jun Chung, Eung-Soo Choi
This paper investigated the combustion behavior of coke breeze granulated with other raw materials for iron ore sintering in a broad temperature range up to 1350 °C in air and sintering flue gas .
Aug 25, 2016· SINTERING INDIAN IRON ORE and said raw sintering iron ore low grade iron beneficiation and pelletisation standing committee on coal and steel 29 Aug 2013 utilization of fines and lower grades of .
Jul 18, 2013· Microstructural studies have been carried out to understand the effect of coke breeze particle size on sinter microstructure and sinter properti The present paper is an attempt to understand and correlate the physical and metallurgical properties of sinter with varying size of the coke breeze particle in sinter mix , Iron ore sintering is .
iosrjournalsorg 47 | Page Particulate Sintering of Iron Ore and Empirical Analysis of Sintering Time Based on Coke Breeze 40 35 Sintering Time (mins) 30 25 20 15 ExD 10 MoD 5 0 850 950 1050 1150 Temperature (0C) Fig 7: Comparison of the sintering times (relative to ignition temperature) as obtained from experiment and derived model
Some experiences in the sintering of iron ores S JAYARAM, D D BHUPTANI, P MEHTA, and F W KOKO AS PART of a 2 m ton expansion project, the Tata Iron and Steel Company set up an ore-crushing and sintering plant to provide a sized ore plus sinter feed to the blast-furnac The sinter plant started operation in late 1959.
AP-42, CH 125: Iron And Steel Production - US EPA Know More 125 Iron And Steel Production , The sintering process converts fine-sized raw materials, including iron ore, coke breeze, limestone, mill scale, and flue dust, into an agglomerated product, sinter, of suitable size for charging into the blast furnace The raw materials are sometimes mixed with water to provide a cohesive matrix, and .
Substitution of Charcoal for Coke Breeze in Iron Ore Sintering LU,1)* Matt ADAM,1) Matt KILBURN,1) Sarath HAPUGODA,1) Michael SOMERVILLE,2) Sharif JAHANSHAHI2) and John Gordon MATHIESON3) 1) CSIRO Minerals Down Under Flagship, Queensland Centre for Advanced Technologies, Technology Court, Pullenvale, QLD, 4069 Australia
Coal coke breeze is a common backfill material used in cathodic protection It is a type 1 carbonaceous backfill material Coal coke breeze backfill has low resistivity and low ash content, and may be treated by the addition of 10% (by weight) commercial grade slaked lime The fuel used in the iron ore sintering processes is coke breeze
Nov 25, 2018· Theory and Practice of Sintering of Iron ore Sintering of iron ore is a generic term which is used to describe the process whereby a sinter mix (raw mix or green mix) of iron ore fines, fluxes, fuel (coke breeze) and plant return fines (eg mill scale, blast furnace dust, and returned sinter fines etc) are converted into a particular form of .
1 Introduction Iron ore sintering is a very important process which produces sinter as a major burden for blast furnace ironmaking In this process, iron ore and auxiliary materials, eg, fluxes, unqualified sinter (called return fine), and coke breeze, are mixed, granulated and then sintered at ,
Jul 15, 2014· In sintering, a shallow bed of fine particles is agglomerated by heat exchange and partial fusion of the still mass Heat is generated by combustion of coke breeze admixed with the bed of iron ore fines, fluxes, and metallurgical wastes (sinter mix) being agglomerated
PDF | The substitution of charcoal as an alternative fuel to coke breeze in a simulated Japanese Steel Mills (JSM) sinter blend was investigated Compared with coke breeze, higher mix moisture .
Jan 29, 2015· Iron ore microfines and concentrate have very limited uses in sintering process They are used in pelletization; however, this process is cost intensive Furthermore, the microfines of non-coking coal and other carbon-bearing materials, eg, blast-furnace flue dust (BFD) and coke fines, are not used extensively in the metallurgical industry .
CHAPTER-11 FUNDAMENTALS OF IRON ORE SINTERING R P Bhagat INTRODUCTION The process of sinter making originated from a need to make use of fines generated in mines and in ore benefiCiation plants With the development of sintering technology, a sintering plant has become a tremendous success for providing a phenomenal increase in
The iron blast furnace is the most widely used and efficient producer of liquid iron; however, emissions from sintering and coking cause environmental pressure for the integrated steel works The combustion of coke fines (breeze) during sintering contributes to greenhouse gases (GHG) (eg carbon dioxide) and is a source of SOx and NOx emissions
In order to increase the combustion efficiency of coke breeze in sintering process, , Effect of granule structure on the combustion behavior of coke breeze for iron ore sintering ISIJ Int 53(9):1594–1598 CrossRef Google Scholar 4 Damien O, Sun Q, Shen HB (2008) Effect of coke size on iron ore sintering
AbstractCoke breeze is the most common fuel used in sintering, and its usage depends on the alumina content and fineness of the sinter mix The coke breeze consumption in the JSW Steel Limited sinter plant was high compared to many other sinter plants in the world, and as there was a local shortage, optimisation in the sinter plants was necessary
The iron blast furnace is the most widely used and efficient producer of liquid iron The integrated steel works is however under environmental pressure largely due to emissions from sintering and coking The combustion of coke breeze during sintering contributes to greenhouse gases (eg carbon dioxide) and is the source of much of the emissions.
Sinter is the primary feed material for making iron in a blast furnace, and we have previously written about sintering and how it is a step between mining ore and steelmaking The only source of primary iron is iron ore, but before all that iron ore can be turned into steel, it must go through the sintering ,
The quality of iron ore presently being used calls for extensive investigations to produce low basicity sinter with high alumina iron ore Studies have been carried out on low and high alumina iron ore fines to know the influence of sinter basicity and fuel (coke breeze) addition on sinter ,
mass itself Iron ore fines, coke breeze, limestone and dolomite along with recycled metallurgical wastes are converted into agglomerated mass at the Sinter Plant, which forms 70-80% of iron bearing charge in the Blast Furnace This entire process of sinter making is associated with various hazards safety
Sintering is a widely used method to agglomerate iron-containing fine-grained materials In sintering the ore fines, concentrates, fluxes, and coke breeze are thoroughly weighed, moistened, and mixed
Iron ore sintering with charcoal R Lovel *1, K Vining 2 and M Dell Amico 3 The iron blast furnace is the most widely used and efficient producer of liquid iron; however, emissions from sintering and coking cause environmental pressure for the integrated steel works
In iron processing: Sintering ,of fine coke (known as coke breeze) within the ore generates the necessary heat Before being delivered to the sinter machine, the ore mixture is moistened to cause fine particles to stick to larger ones, and then the appropriate amount of coke is added