and coke breeze granules were almost the same. 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.
Dec 01 2018 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 e.g. fluxes unqualified sinter called return fine and coke breeze are mixed granulated and then sintered at
Effect of replacement coke breeze by charcoal on technical operation of iron ore sintering Naglaa.A.El-Hussiny 1 Ahmed.A. Khalifa 1 Ayman.A. El-Midany 23 Ahmed.A.Ahmed 2 Mohamed.E.H.Shalabi 1 Abstract— The coke breeze is the common solid fuel for iron sintering plants. The high consumption of coke breeze leads to its depletion
Substitution of Charcoal for Coke Breeze in Iron Ore Sintering . Compared with the sinter fired with coke breeze the sinter from the mixtures containing up to 50 charcoal was marginally weaker in terms of sinter yield tumble strength TI and reduction disintegration RDI. The reasons for weaker sinter
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.
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
Ooi et al11 suggested that it is feasible to substitute 10 coke breeze by biomass in the iron ore sintering process. In another work Ooi et al12found that fuel blends where 20 of the coke breeze was replaced by charcoal may improve both the sinter yield and productivity.
However at 100 subsitution the sinter mixture failed to achieve balance even at a very high fuel addition level of 4.7. Compared with the sinter fired with coke breeze the sinter from the mixtures containing up to 50 charcoal was marginally weaker in terms of sinter yield tumble strength TI and reduction disintegration RDI.
ore particles. The burning of coke breeze by the preheated air proceeds successively vertically downwards. The calcined limestone reacts with the gangue constituents to . Fig. 11.3 Factors involved in the granulation and sintering of iron ores The following factors play major roles in controlling the granulation characteristics of sinter mix.
Nov 01 2010 Air is drawn through the bed by an induced draught fan to sustain the combustion. The heat generated by the combustion of the coke breeze causes the iron ore granules to agglomerate into lump materials suitable for the blast furnace Dawson 1993. Download Download full-size image; Fig. 1. Schematic diagram of iron ore sintering process.
Substitution of Charcoal for Coke Breeze in Iron Ore Sintering Liming LU1 Matt ADAM1 Matt KILBURN1 Sarath HAPUGODA1 Michael SOMERVILLE2 Sharif JAHANSHAHI2 and John Gordon MATHIESON3 1 CSIRO Minerals Down Under Flagship Queensland Centre for Advanced Technologies Technology Court Pullenvale QLD 4069 Australia.
Oct 01 2016 Using biomass for partial or complete replacement of coke breeze in the iron ore sintering process is an attractive technique for reducing emissions of greenhouse gas and gaseous pollutants. However short supply of charred wood and low sinter quality for raw biomass are the biggest constraints for wide application in sinter production at present.
May 03 2013 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 to .
Jul 18 2013 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 e.g. carbon dioxide and is a source of SO x and NO x emissions .
Mar 19 2015 The fuel used in the iron ore sintering processes is coke breeze. Its combustion yields high enough amounts of heat which is delivered to the sinter mix. Corrosionpedia explains Coal Coke Breeze. In the coal coke production process during the coke quenching handling and screening operation coke breeze is produced. It is either reused on site .
Of Coke Breeze Sintering Iron Ore. As a leading global manufacturer of crushing equipment milling equipmentdressing equipmentdrying equipment and briquette equipment etc. we offer advanced rational solutions for any size-reduction requirements including quarry aggregate grinding production and complete plant plan.
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.
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
The results showed that the fine coke breeze burned quickly but high ratio of fine particle in coke breeze was not beneficial for the improvement of the sinter quality. The low permeability of the front section of the sintering machine caused the low combustion efficiency of coke breeze which could be improved by increasing the coarse powder .
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
Three Dimensional Mathematical Model of the Iron Ore Sintering Process Based on Multiphase Theory Jose Adilson de CastroabYasushi Sazakib Jun-ichiro Yagi c . coke breeze or anthracite begins at the top of the layers and as it moves a relative narrow band of ignition zone moves downward through the bed that can be strongly affected
Oct 19 2016 Sintering Technology for Iron ores and Optimization of Sinter Machine Design. satyendra; . Raw materials consisting of iron ore fines coke breeze slag modifiers such as lime stone dolomite manganese ore lime quartzite and sand etc. and waste materials such as mill scale screenings dusts sludges and converter slags etc. are batched .
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
Use of iron ore fines coke breeze metallurgical wastes lime dolomite for hot metal production . Iron ore sintering creates substantial off-gas volumes and treating these in order to meet increasingly stringent environmental standards is expensive. EOS uses recycling technology to reduce off-gas