After summarizing, this study describes a performance assessment method for the carbon efficiency in an iron ore sintering process. Two specific problems are considered for the improvement of the assessment accuracy: the improvement of prediction accuracy, and assessment accuracy. The main contributions of this paper are summarized as follows:
The iron oxide (FeO) content had a significant impact on both the metallurgical properties of sintered ores and the economic indicators of the sintering process. Precisely predicting FeO content possessed substantial potential for enhancing the quality of sintered ore and optimizing the sintering process. A multi-model integrated prediction framework for FeO …
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 (e.g. mill scale, blast furnace dust, and returned sinter fines etc.) are converted into a particular form of agglomerate.
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 amount of gas pass by the …
Iron ore sintering process is the second to the municipal waste incinerator toxic pollutants emission source and more than 50% of dioxin emissions are from sintering process in the iron and steel industry (Cang et al., 2014; Cieplik et al., 2003). However, due to the sintering flue gas has the characteristics of complex composition, large flow ...
Sintering is a thermal agglomeration process that is applied to a mixture of iron ore fines, recycled ironmaking products, fluxes, slag-forming …
A mathematical model was developed for the iron ore sintering process considering all the major thermochemical phenomena in the system, assuming both the static and moving bed configurations. The model predicted a large number of parameters pertinent to the sintering process including the temperatures of the gas and solid, concentration of various …
2013. Sintering is a process by which a mixture of iron ores, fl uxes and coke is agglomerated in a sinter plant to manufacture a sinter product of a suitable composition, quality and granulometry to be used as burden material in the blast furnace.
In modern technology, much-advanced modification is done in the sintering process to enhance productivity, decrease emissions with suitable metallurgical properties …
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, …
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.
During the iron ore sintering process, its SiO2 content considerably affects the sinter quality. In this study, the effect of SiO2 content on iron ore sintering indexes was studied, with mineral … Expand. 3. PDF. Save. Optimization of iron ore blending based on replacing Australian low alumina limonite.
The combustion behaviour of solid fuels – for example, coke and biomass char – is an important consideration in iron ore sintering as it determines heat availability for the melt formation process. This behaviour is influenced by the presence of an adhering layer of fine material around the fuel particles.
In this study, the optimisation model of fuel distribution base on numerical simulation was proposed to reduce the fuel consumption of sintering process. The simulation model of sintering process was carried out according to the heat and mass transfer, and the physical and chemical reactions of sintering.
Tensile strength and shear strength properties of the adhering layer of granules in iron ore sintering Creator Zhou, M. ... Iron Ore 2017: Building Resilience, 24-26 July 2017, Perth, Australia (Perth, W.A. 24-26 July, 2017) p. 117-122
A fine particle and sintering process technology, applied in the direction of dispersed particle separation, gas treatment, membrane technology, etc., can solve problems such as complex composition, complex flue gas composition, and large flue gas flow
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 …
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 have been considerable …
In particular, the sintering process is one of the highly energy-intensive stages of the ironmaking process, which relies mainly on coal and coke for the entire combustion …
Currently, steel production in China is dominated by the BF-BOF route, and sinter is an indispensable high-quality raw material for blast furnace ironmaking (Wang et al., 2019).The energy supply for the iron ore sintering process relies on coke breeze or anthracite under conventional conditions, and hydrogen-rich gas is considered as "bridge fuel" for carbon …
The ultimate goal of the iron ore sintering process is to maximize the sinter productivity, strength, and reducibility (which are related to the energy consumption in the …
The iron ore sintering process was simulated and computational domain was the same as the configuration of a sinter pot as shown in Fig. 1. Entrance of the sinter pot was defined as a velocity inlet. The magnitude of velocity was obtained from the experimental gas-flow rate [7]. The bottom of the sinter pot was set to be pressure outlet which ...
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. ...
in terms of iron ore type and the ratio of each ore, was pre-defined by the steelmaking company that ... used in the sintering process, which is consequently correlated to the reduction in CO2 emissions. Simultaneously, the quality of this newly designed sinter was improved compared with the standard sinter in view of reducibility. ...
Moreover, the conventional iron making unit, i.e. blast furnace requires the raw material in the form of iron oxide with a size range of 10–120 mm. Sintering is the oldest agglomerate thermal process using iron ore mineral fines of 0.5–8 mm, along with the reductant, fluxes, and other byproducts of the iron and steel industry operated ...
The iron ore sintering process prepares fine iron the ores for the blast furnace process. Sinter plants agglomerate iron ore fines with other fine materials at high temperature in a mix bed to create a product that can be used in a blast furnace. Main feed into a sinter plant is base mix, which consists of iron ore fines,
The optimization of parameters for controlling iron ore sintering process based on maximum satisfaction, Liu Yunlian, Li Xinjun, Gao Dan
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 …
AbstractReal-time accurate evaluation of the working conditions is crucial for ensuring the process safety and production efficiency in the sintering process. However, existing sintering condition ...
DOI: 10.1016/j.jhazmat.2018.04.032 Corpus ID: 13677231; Clean recycle and utilization of hazardous iron-bearing waste in iron ore sintering process. @article{Gan2018CleanRA, title={Clean recycle and utilization of hazardous iron-bearing waste in iron ore sintering process.}, author={Min Gan and Zhiyun Ji and Xiao-hui Fan and Xu-ling Chen and Yang Zhou …
The sintering process is typically one of the main sources of emissions at ... to start negotiations on financing the construction of an iron ore briquette plant worth up to $282.9 million in ...
Iron ore fines are the main source for sinter, and the chemical composition of the iron ore fines, together with the thermal conditions that blends are subjected to, plays an important role in forming the primary melt during the sintering process and accordingly determines the sinter structure and quality.
The sintering process is a well-established process in use at integrated steel making plants. It consists of an agglomeration through an oxidizing/reducing fusion of iron ore fines (sinter feed) and fluxing agents (lime, limestone, etc.) as well as re-circulated materials (dust, sludge, etc.) at temperatures between 1200 °C to 1400 ° C. A carbon based solid fuel is …
Sintering is a thermal agglomeration process, and its main raw materials are iron ore, returning sinter ore, fluxes, and coke (Fernández-González, Ruiz-Bustinza, Mochón, González-Gasca, & Verdeja, 2017).The high energy consumption and serious pollution associated with the sintering process have always been an important concern of iron and …
The objective of iron ore agglomeration is to generate a suitable product of granules in terms of thermal, mechanical, physical, and chemical properties. ... The double-layer ignition sintering process can reduce the emission of nitrogen oxides in the sintering process under the condition of guaranteeing the quality of sinter, which has great ...
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 calcined lime coated iron ore …
Title A fundamental study of the co-combustion of coke and charcoal during iron ore sintering Creator Zhao, Jiapei; Loo, Chin Eng; Yuan, Jinliang; Wang, Fu; Wang, Jiatang; Zhang, Houcheng; Miao, He
Therefore, clearly understanding the iron ore granulation process is the key to the improvement of the granulation efficiency and thus the iron ore sintering productivity. The principal mechanism of iron ore granulation can be described as the layering of adhering fine particles onto the coarse nuclei particles under the action of water, as ...
The experiment involving ammonia injection was conducted to minimize solid fuel consumption and carbon emissions during the sintering process of iron ore. The sintering bed temperature, sintered ore quality, …