of coke breeze sintering iron ore

Sintering Technology for Iron ores and Optimization of ...

The major advantages of using sinter in BFs are Use of iron ore fines, coke breeze, metallurgical wastes, lime, dolomite for hot metal production Better reducibility and other high temperature properties Increased BF productivity due to higher softening temperature and lower softening –melting temperature range.

The Relationship Between Mining and Sintering

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.

Optimization of Coke Breeze Segregation in Sintering Bed ...

In the RFCS project 'Acasos', alternative carbon sources, for example olive pits, sunflower husks, blast furnace (BF) dust and sludge, anthracite and pet coke, were analysed, pre-treated and evaluated by sinter pot tests and industrial sinter plant trials. It was found that pre-treatment is essential for the utilisation of alternate carbon sources. The crushing of the evaluated biomass …

Thermodynamic Analysis of Iron Ore Sintering Process Based ...

Jun 11, 2019· According to the U.S. Environmental Protection Agency, 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.

APPLICATION OF FINE

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. Keywords: Coke fine, Granulation, Iron ore ...

Partial substitution of anthracite for coke breeze in iron ...

In iron ore sinter plants blast furnace dust and other fine-grained residues which are rich in iron or car-bon content are recycled. The carbon contained in the blast furnace dust can be used to replace coke breeze which is added to the charge as fuel for the sintering process. However, there is no information in

Chemical, Mineralogical and Metallurgical Characterization ...

Sintering is a thermal agglomeration process that is applied to a mixture of iron ore fines, recycled ironmaking products, fluxes, slag-forming agents and solid fuel (coke).

A study on the effect of coke particle size on the therm ...

blended with fluxes and coke breeze (finely divided coke) to form hard lumps or iron-rich material suitable for use as blast furnace feed (Williams, 1983). In iron ore sintering, the

Figure 9 from Utilization of Low Grade Iron Ore (FeOOH ...

the blending ratios of the coke breeze, Ore N, and Ore R for each layer with the two blending patterns. The limestone, coke breeze and return fine used in the tests were gathered from the sintering plant. For 50mass% of pisolite ore ratio, the difference of combined water in upper layer and bottom layer was considered as 1.17mass% ( 0.7/30·50 ...

Chemical, Mineralogical and Metallurgical Characterization ...

PDF | In the sintering of iron ores, the partial substitution of anthracite for coke breeze has been considered to be an effective way of reducing... | Find, read and cite all the research you ...

Alternate carbon sources for sintering of iron ore (Acasos ...

Ooi et al[11] suggested that it is feasible to substitute 10% coke breeze by biomass in the iron ore sintering process. In another work, Ooi et al[12]found that fuel blends where 20% of the coke breeze was replaced by charcoal may improve both the sinter yield and productivity.

Theory and Practice of Sintering of Iron ore – IspatGuru

In the RFCS project 'Acasos', alternative carbon sources, for example olive pits, sunflower husks, blast furnace (BF) dust and sludge, anthracite and pet coke, were analysed, pre-treated and evaluated by sinter pot tests and industrial sinter plant trials. It was found that pre-treatment is essential for the utilisation of alternate carbon sources. The crushing of the evaluated biomass …

Sintering Technology for Iron ores and Optimization of ...

The fuel used in iron ore sintering processes is coke breeze. Its combustion yields enough amounts of heat which is delivered to the sinter mix. One of the factors that signifi cantly affect the course of coke breeze com-bustion is its grain size. Many studies and industrial practices have shown that coarse-grained coke breeze

Substitution of Charcoal for Coke Breeze in Iron Ore …

The sinter process of iron ore with biomass carbon instead of coke breeze as fuel was investigated via thermodynamic analysis in this paper through a comparison of sinter composition indexes, metallurgical properties, and pollutant emissions. Straw charcoal was used in this paper, and its replacement does not adversely affect the composition index of iron ore, namely Fe, …

PHASE COMPOSITION OF IRON ORE SINTERS PRODUCED …

Reduction in coke rate in blast furnaces; SINTERING PROCESS A Sinter Plant typically comprise the following sub-units as shown below. SINTERING PROCESS. The raw materials used are as follows - Iron ore fines (-10 mm), coke breeze (-3 mm), Lime stone & dolomite fines (-3mm) and other metallurgical wastes.

The Relationship Between Mining and Sintering

In industrial iron ore sintering, the combustion of coke breeze supplies the necessary heat to achieve partial melt-ing of raw materials. It also produces a locally reducing atmosphere within the sinter bed during the heating stage. Once the peak temperature has been reached, the agglom-erated semi-molten material then slowly cools under an

Effects of anthracite replacing coke breeze on iron ore ...

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.

Recycling of Blast Furnace Dust in the Iron Ore Sintering ...

In industrial iron ore sintering, the combustion of coke breeze supplies the necessary heat to achieve partial melt-ing of raw materials. It also produces a locally reducing atmosphere within the sinter bed during the heating stage. Once the peak temperature has been reached, the agglom-erated semi-molten material then slowly cools under an

Combustion behavior of granulated coke breeze in iron ore ...

Anthracite coal as fuel for iron ore sintering is compared with coke breeze. Anthracite is lower in porosity, higher in density, and slower in combustion rate. With higher proportion of anthracite in fuel, permeability of sinter bed tends to decrease resulting in lower sinter productivity.

Alternate carbon sources for sintering of iron ore (Acasos ...

The sintering of iron ore is an important stage in the steelmaking process. In this procedure, the temperature rise due to the combustion of coke breeze causes the partial fusion and diffusion bonding in the sintering charge, producing a coarse agglomerate suitable for charging in the blast furnace (Ramos et al., 2000; Umadevi et al., 2011 ...