Sinter strength evaluation using process parameters under …
Similarly, in iron ore sintering process the heat utilization efficiency will reach to the maximum when the HTFS is equal to FFS. Here we employed the η, introduced in Section 2, to characterize the heat utilization efficiency (matching performance of HTFS and FFS ) in iron ore sintering process.
Mathematical modelling of iron ore sintering process using genetic
A mathematical model of the iron ore sintering process in a fixed sinter bed and optimisation of the process parameters using real valued genetic algorithm is described. The mathematical model is formulated based on mass and energy balances in gas and solid phases, which are represented by simple partial differential equations. ...
Utilization of Pellet Fines in the Iron Ore Sintering Process
The sinter plant that converts the iron ore fines into a desirable blast furnace feed, offers an avenue for recycling wastes. One of the several wastes that are produced at an iron and steel plant is the undersized pellet fines, which cannot be directly used in iron making. The present study evaluated the influence of these pellet fines on the sintering …
A Novel Sintering Process for Porous Iron Ore Sintering …
The sintering process parameters and sinter qualities obtained through conventional and pre-processed iron ore with calcined lime routes are presented in graphical form in Fig. 6. The pot sinter results exhibit clear and distinct differences in the results of dense and porous iron ore usage in sintering through either of the …
Selective sintering of magnesia–calcia materials by
Magnesia–calcia refractories are widely used in the production process of clean steel due to their excellent high-temperature stability, slag resistance and ability to purify molten steel. However, there are still problems such as difficult sintering and easy hydration. Magnesia–calcia materials with various calcium oxide contents were prepared …
Application of a clean fuel produced by electrolysis in iron …
During the iron ore sintering process, the resistance in the high-temperature zone is the most critical factor affecting the resistance of the sintering bed, as a lot of molten liquid phases are generated in the high-temperature zone. At higher Brown gas injection concentrations, the high-temperature zone is enlarged, the DTMT is extended, …
Sintering in the Powder Metallurgy Process
Transient liquid phase sintering. In a compact that contains only iron powder particles, the solid state sintering process would generate some shrinkage of the compact as the sintering necks grow. However, a common practice with ferrous PM materials is to make an addition of fine copper powder to create a transient liquid phase during sintering.
Combustion mechanism of benzene in iron ore sintering process
The iron ore sintering process is the main source of VOCs emission in the iron and steel industry, and its VOCs emission accounts for about 69.6% . The organic compounds in the solid fuel and the oil components from the raw materials such as rolling oily sludge are pyrolyzed in the preheating layer (150–900 °C) to produce VOCs [ 9, 10 ].
Reducing Carbon and Nitrogen Oxides Emission in Iron …
diagram of double-layer pre-sintering new process is shown on Fig. 1. The 10 to 20 min sintering in the first layer is named as pre-sintering that is very important to the whole process. Through the pre-sintering process, the NO x and CO x emission in sintering can be largely reduced. This came from both the laboratory sinter pot test
(PDF) Iron Ore Sintering: Process
PDF | Sintering is a thermal agglomeration process that is applied to a mixture of iron ore fines, recycled ironmaking products, fluxes, slag-forming... | Find, read and cite all the...
(PDF) Mathematical modelling of iron ore sintering process …
Mathematical modelling of iron ore sintering process using genetic algorithm B. K. Giri and G. G. Roy* A mathematical model of the iron ore sintering process in a fixed sinter bed and optimisation of the process parameters using real valued genetic algorithm is described. The mathematical model is formulated based on mass and energy balances …
Operating mode recognition of iron ore sintering process …
The iron ore sintering process includes proportioning, mixing and granulating, feeding, igniting, sintering with ventilation, crushing, cooling and screening phases (Du et al., 2020, Hu et al., 2018). The operators are most concerned with the combustion process on the sinter strand, as shown in Fig. 1.
Clean recycle and utilization of hazardous iron-bearing waste in iron
During sintering process, iron ore fines, recycled iron-bearing materials (dusts and slags), fluxes (dolomite, limestone, etc.), and fossil fuels, such as coke breeze and anthracite, are thoroughly mixed and agglomerated into lump-like sinter under about 1300 °C provided by the combustion of fossil fuels [10].
Volatile organic compounds (VOC) emissions control in iron …
The iron ore sintering process commonly employs anthracite and coke as fuels, and the volatile matter is commonly<10%. Initially, we considered that the volatile matter of the fuel was closely related to the emissions of VOCs and investigated the effect of coal type on VOC emissions by sintering cup experiments [17].
Comprehensive evaluation of hydrogen-rich energy application in iron
The iron ore sintering, as an essential raw material treatment process of blast furnace, mainly uses coke or anthracite as a heat source and emit a large amount of greenhouse gas (Annual Conference on Sintering & Pelletizing Technology, 2022), which is not consistent with the current environmental protection requirements.
Iron Ore Sintering: Process | Semantic Scholar
ABSTRACT 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 …
Ore Sintering
Iron ore sintering is a material preparation process employed worldwide in the production of iron and steel. According to statistical data on pollution, sintering plants rank second in terms of toxic emissions, after the incineration of municipal solid waste (Menad et al., 2006; Remus et al., 2013 ). Of the eight CORINAIR (Core Inventory of Air ...
Optimization of iron ore sintering process based on ELM
Optimization of iron ore sintering process is to maximize the productivity and the sinter ore quality while minimizing the energy consumption. However, these economic and technical criteria are sometimes contradictory and the improvement of one criterion generally leads to the deterioration of other criteria. This paper aims to seek the …
Iron Ore Sinter
Low-temperature (< 1300 °C) iron ore sinter is an agglomerate of unmelted and partially melted nuclei particles (+ 1 mm) and a matrix bonding phase produced from the melting …
Iron Ore Sintering Process with Biomass Utilization E.A.
charcoal in iron ore sintering process. The applied biom ass is prepared by the pyrolysis of woody pellets in muffle furnace under inert atmosphere at t he same temperature as coke breeze is produced.
Numerical Modeling of the Iron Ore Sintering Process
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. In the literature simple and more ...
Basics of Iron Ore Sintering | SpringerLink
Abstract. 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) along with the sinter in blast furnace burden. In this way, the productivity of the furnace considerably improves. In this paper, some fundamental aspects such as the ...
Sintering Definition, Process & Advantages | Study
In the sintering process particles can be combined to form larger solid materials with desired shapes. Sintering process allows for better control over material formation and enhanced mechanical ...
Disposal of zinc extraction residues via iron ore sintering process…
The iron ore sintering process has the capability to handle and utilize complex raw materials, allowing for the reasonable utilization of zinc extraction residue. The addition of zinc extractant has been found to improve the sintering index, metallurgical properties, and gaseous pollutant emissions without significant negative effects. ...
Recent advances in iron ore sintering
Sintering is the most economic and widely used agglomeration process to prepare iron ore fines for blast furnace use. …
Review of computational fluid dynamics modeling of iron sintering process
Iron ore sintering is a pretreatment step of smelting that agglomerates the iron ore using surface melting of green pellets to improve the quality of the steel product. The sintering process not only improves the quality of steel products, but also releases CO and CO2 gases, evaporates moisture, and improves the reducibility of iron ore to …
Basics of Iron Ore Sintering | SpringerLink
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) along …
Sintering: A Step Between Mining Iron Ore and …
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 …
Effect of bed shrinkage on iron ore sintering process
Iron ore sintering entails high energy consumption and also produces significant pollution, responsible for the highest share of CO 2 emission, as well as SO 2 and NOx emissions, in the iron and steel production processes. 5 The SO 2 and NO X emissions from this process account for ∼70% and ∼40% of the total iron and steel …
Application of deep learning in iron ore sintering …
The sintering process is an extremely complex industrial scene. As the main process of the blast furnace ironmaking industry, it has great economic value and …