The sintering process involves a large number of parameters, more than 500, each of which exerts a greater or lesser influence and needs to be controlled, within the possible limits, in order to optimise productivity, process stability, and standardise the composition and quality of the sinter produced.
The basic characteristics of Australian iron ore concentrate (Ore-A) and its effects on sinter properties during a high-limonite sintering process were studied using micro-sinter and sinter pot methods. The results show that the Ore-A exhibits good granulation properties, strong liquid flow capability, high bonding phase strength and …
The typical sintering process is portrayed in Fig. 1, the raw materials are filled into the moving pallet after mixing and granulating, and the solid fuels in mixture bed start to burn when the pallet passing through the ignition hood.The negative pressure is formed inside the wind-boxes caused by the main exhauster, which leading larger …
Sintering process for iron ore fines. Like other sintering processes, iron ore sintering converts iron ore fines of often − 8 mm sizing into larger agglomerates, …
Iron ore sintering involves the movement of a flame front down a particulate bed, and a series of physico-chemical reactions over a large temperature range.
Intensification of the iron ore sintering process is approached with a four-way framework covering granulation improvement, waste gas recycling, fuel gas …
Sintering of iron ores is an enormous energy-intensive and resources consuming process. Introducing a selective waste gas recirculation (SWGR) to the …
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 ...
Mathematical modeling and distribution characteristics evaluation of fuel particles in iron ore sintering process. Author links open overlay panel Fanglei Dai a, Xiaoxian Huang a, Xiaohui Fan a, Xuling Chen a, Min Gan a, Zhiyun Ji a, Zengqing Sun a, Gaige Zhao b. ... Res. Iron Steel, 35 (2007), pp. 39-42, 10.3969/j.issn.1001 …
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 …
In iron ore sinter plants blast furnace dust and other fine-grained residues which are rich in iron or carbon 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 …
Recycling of mill scale in sintering process .Science of Sintering 43 (1), pp. 21-3, 2011.pdf ... These results indicate the suitability of recycling RM in the Egyptian iron ore sintering process ...
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 process. Sinter is the primary feed material for making iron and steel in a blast furnace. According to the U.S. Environmental Protection Agency, the sintering process converts fine-sized raw materials, including ...
Typically, coking, sintering, steelmaking, casting and rolling are the main processes employed in an integrated iron smelt plant. Pollutants emission from iron ore sintering process is the most serious part (Jia et al., 2015, Zhou et al., 2016).In the sintering process, as shown in Fig. 1, the materials in sinter bed exhibit sinter zone, …
At present, the use of biomass as an alternative fuel in the sinter process was widely investigated by many researchers, they found that up to 10% of coke breeze could be replaced with biomass in the sinter process, and the quality deterioration of the sintered ore was not apparent (Cheng et al., 2016a; Gan et al., 2019; Jha and Soren, …
Model predictions for new iron ore sintering process technology based on biomass and gaseous fuels
The production of blast furnace ironmaking depends on large part on the sintering of iron ore; thus, it is crucial to model, simulate, and optimise the sintering …
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). The purpose of the sintering process is manufacturing a product with the suitable characteristics (thermal, mechanical, physical and chemical) to be fed to the blast furnace.
Based on the obtained data, conclusions are given on the optimum usage of renewable biomass in iron ore sintering process. Airflow during the sintering of different mixtures Figures - uploaded by ...
The present work proposes a novel process to sinter porous iron ore (porosity ~23–24%) with enhanced productivity and quality. The iron ore is pre-processed in the presence of calcined lime for the temporary closure of pores, which further prevents water absorption during the granulation process in drum in the presence of water. The …
In this review, the sintering process is first described and analyzed to identify the key factors affecting the structure and quality of iron ore sinter. Under fixed sintering conditions, the granulation efficiency, nucleus stability and primary sinter melt volume and properties of the iron ore are considered to have significant influence on the …
Recycling of mill scale in sintering process .Science of Sintering 43 (1), pp. 21-3, 2011.pdf ... These results indicate the suitability of recycling RM in the Egyptian iron ore sintering process ...
In iron ore sinter plants blast furnace dust and other fine-grained residues which are rich in iron or carbon content are recycled. The carbon contained in the blast furnace dust can be used to ...
Iron ore sintering is an energy-intensive process associated with emission of pollutants in iron and steel industry. In order to comprehensively evaluate the environmental impacts of sintering, a detailed life cycle assessment of a sintering plant was conducted.
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 …
1. Introduction. The integrated iron and steel industry is the most energy-intensive sector, accounting for 10–15% of the total energy consumption in the world [1].In 2009, the CO 2 emission from Chinese iron and steel sector is nearly equal to 50% of the world's steel industry's CO 2 emission [2].It is aimed at converting iron ore fines to …
In iron ore sintering process, coke combustion can influence the NOx emission. At the same time, there are other sintering parameters which can also affect the NOx emission, such as water content, limestone particle size, MgO content and return fines content. ... Process, 41 (1994), pp. 53-69. View PDF View article View in Scopus …
Steel making using the integrated blast furnace (BF) process route is still the dominant steel production method covering 70% of worldwide steel production and iron ore sintering is one of the most important iron sources within this process, which represent 70–80% of charged iron-bearing materials into modern BF [].Inside this route, …
1. Introduction. Iron ore sintering is a thermal treatment process to agglomerate fine particles into larger lumps to achieve an excellent metallurgy performance for the feed material in a blast furnace [1], [2], [3].The sinter is the main iron-bearing burden of an ironmaking blast furnace, and the sintering output has reached about 1 …
In iron making process, sintering of iron ore fines is an integral step to utilize not only the ore fines but also to introduce a part of flux (limestone and dolomite) …
Sintering is the most economic and widely used agglomeration process to prepare iron ore fines for blast furnace use. Owing to the depleting reserves of traditional high grade iron ore, there …
added, while the productivity of the sintering process decreased. From sinter pot tests replacing coke breeze by pellets made of BF dust and BF sludge improvements in the mechanical properties of the sinter produced were also reported.15) However, in this study the productivity of the sintering process was also increased.
Nowadays, as the demand for iron ore increases together with the depletion of high grade ore deposits, mining companies have been investing to produce iron ore concentrates, such as pellet feeds (95% lower than 0.15 mm) with low level of contaminants.It is well-known that its lower particle size negatively affects the …
ISIJ International, Vol. 52 (2012), No. 9, pp. 1550–1558 Numerical Modeling of the Iron Ore Sintering Process Hao ZHOU,1)* Jia Pei ZHAO,1) Chin Eng LOO,2) Benjamin George ELLIS3) and Ke Fa CEN1) 1) State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, Zhejiang University, Hangzhou,
Sinter plants currently have to use many types of ores with different properties owing to the great demand for iron ores, which was driven by the massive growth in Chinese iron and steel industry. On the other hand, the development of iron ore mines is limited and the quality of iron ores is in a tendency of deterioration.
