قائمة الطعام
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 ...
WhatsApp: +86 18221755073
Download reference work entry PDF. Iron ore sintering is the iron ore powder agglomeration process that changes fine iron ore powder into the lumpy iron …
WhatsApp: +86 18221755073
Like other sintering processes, iron ore sintering converts iron ore fines of often −8 mm in size into larger agglomerates, namely sinter, between 5 and 50 mm in particle size, which possess the physical and metallurgical characteristics as well as gas permeability required for efficient blast furnace operation.
WhatsApp: +86 18221755073
1. Introduction. Sintering is a widely used iron ore agglomeration method worldwide to produce qualified charged materials for blast furnaces (Angalakuditi et al., 2021).More than 70% of the raw materials of blast furnaces are sinter in China, the country with the largest crude steel output in the world (Zhou, Xu, et al., 2018).Iron ores, fuels …
WhatsApp: +86 18221755073
IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY 1 Intelligent Integrated Control for Burn-Through Point to Carbon Efficiency Optimization in Iron Ore Sintering Process Sheng Du, Min Wu, Fellow, IEEE, Xin Chen, Member, IEEE, Jie Hu, and Weihua Cao, Member, IEEE Abstract— The iron ore sintering process is an important step in …
WhatsApp: +86 18221755073
The sintering process is an intricate system with a protracted process flow. The steps in the manufacturing line are primarily composed of the ingredients and mixing process, the sintering operation process, and the treatment of the sintered ore [39, 40].2.2 Important parameters and characteristics of sintering process. As shown in Fig. 2, all …
WhatsApp: +86 18221755073
The global steel industry uses fossil fuels to produce millions of tonnes of iron ore sinter each year. Sintering is an energy-intensive process that fuses iron ore and flux to produce material that balances a high mechanical strength at a sufficient particle size to ensure a macroporous burden in the blast furnace to enable rapid gas flow. As …
WhatsApp: +86 18221755073
Iron ore sinter plants are energy-intensive components of integrated iron and steel production (see Table 1), where the iron ore fines (<5 mm) are converted into …
WhatsApp: +86 18221755073
For the countries which use sinter as the main blast furnace material, achieve lower fossil fuels consumption is the inevitable requirement for carbon neutrality and sustainable development, such as China and Japan (Takeshi Kuramochi, 2017).To achieve the requirements of carbon emission reduction and environmental protection …
WhatsApp: +86 18221755073
Sintering emissions and their mitigation technologies. L. Lu, ... X. Li, in Iron Ore, 2015. 18.1.1 Key gaseous emissions from sinter plants. 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 …
WhatsApp: +86 18221755073
The iron ore sintering process is an important step in preparing raw material for ironmaking. How to reduce carbon consumption while ensuring the stable running of the sintering process is an ...
WhatsApp: +86 18221755073
Abstract. 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 changes in iron ore resources available throughout the world, especially in steel mills in East Asia.
WhatsApp: +86 18221755073
The requirements to the pre-processing techniques are given by the sintering process. Generally coke is blended with the other sinter mix components before granulation. Several studies have shown that the size distribution of the coke in the sinter mix has to be in a range of 1 – 3 mm to obtain high per-formance and good sinter quality ...
WhatsApp: +86 18221755073
Iron ore sintering is the iron ore powder agglomeration process that changes fine iron ore powder into the lumpy iron-bearing raw material used for blast furnace ironmaking. High-temperature process and addition of alkaline flux will improve metallurgical performance of iron-bearing raw material.
WhatsApp: +86 18221755073
The PI approach is also a pathfinding tool to achieve carbon neutrality and net zero. Intensification of the iron ore sintering process was approached by injecting hydrogen …
WhatsApp: +86 18221755073
1. Introduction. Iron ore sintering, a major contributor to the burden of blast furnaces, is the largest contributor to air pollutant emissions [1] in the Chinese steel industry. The NO x emission in sintering plants accounts for approximately 80 % of the total from the steel plant and has the potential to be significantly reduced for a …
WhatsApp: +86 18221755073
For the iron ore sintering process, the comprehensive coke ratio (CCR) is defined as the amount of carbon consumption per ton of the sinter, and is taken as the index measuring carbon efficiency [5], [6], [10]. This is also the metric used in this paper.
WhatsApp: +86 18221755073
The sintering process, depicted in Figure 1, involves the application of heat to fine iron ore particles, transforming them into …
WhatsApp: +86 18221755073
One of the main sources of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) in the environment is the sintering of iron ore. Both flue gas recirculation (FGR) and activated carbon (AC), which have the impact of decreasing both PCDD/Fs and conventional pollutants (NOx, SO 2, etc.), are significant technologies for …
WhatsApp: +86 18221755073
150–250 kg per ton of pig iron [2, 3]. In China, with the continuous increase in the demand for high-quality coal and resource shortages, PCI technology has an increasing demand for novel injection fuels. Besides, the amount of coke breeze in iron ore sintering process required is 45–55 kg/t. The reduction and closure of coking oven
WhatsApp: +86 18221755073
Like other sintering processes, iron ore sintering converts iron ore fines of often −8 mm in size into larger agglomerates, namely sinter, between 5 and 50 mm in …
WhatsApp: +86 18221755073
The soft sensing system described above was incorporated into the optimization and control system for online estimation of the carbon efficiency of an iron ore sintering plant. The sintering machine has an effective area of 360 m 2. The system estimates the CCR every time the query datum is send to the HJITL-SS.
WhatsApp: +86 18221755073
Figure 3 shows a comparison of the IEA and WSD views and the related iron ore demand of between 400 and 600 mt by 2050, compared to about 160 mt in 2019. From the quantitative perspective, iron ore supply should not be an issue, with BF iron production falling from just under 1.3 billion tonnes in 2019 to 665 mt by 2050 per IEA's SDS (see …
WhatsApp: +86 18221755073
Carbon monoxide is the major hazardous component in flue gas exhausting from the iron ore sintering. This study aims to reduce the CO emission by changing the sinter parameters by sintering pot ...
WhatsApp: +86 18221755073
The conventional process of iron ore sintering has several advantages such as (a) it enables to attain the desired size of feed for blast furnace (BF), (b) it produces a partially reduced feed, (c) reduction in the fuel requirement in BF smelting, (d) decrease in the flux requirement, (e) lower smelting time and (f) improves the passage of ...
WhatsApp: +86 18221755073
Keywords Iron ore sintering ·Double-layer pre-sintering ·Carbon oxides and ... and the sinter quality met the requirement of blast furnace very well. In the paper, the laboratory research and the industrial pilot of double-layer pre-sintering technology with ultra-thick bed layer were introduced. The industrial pilot
WhatsApp: +86 18221755073
This model lays the groundwork for increasing the carbon efficiency of iron ore sintering by constructing an HMSM that combines mechanism modeling, data-driven modeling, and integrated modeling based on the characteristics of the process parameters.
WhatsApp: +86 18221755073
The PI approach is also a pathfinding tool to achieve carbon neutrality and net zero. Intensification of the iron ore sintering process was approached by injecting hydrogen-rich gas into the sinter bed. The location of the injection was critical to the pyrolysis of the solid fuel, and the SOx and NOx emissions.
WhatsApp: +86 18221755073
The conventional process of iron ore sintering has several advantages such as (a) it enables to attain the desired size of feed for blast furnace (BF), (b) it produces a partially reduced feed, (c) reduction in the fuel requirement in BF smelting, (d) …
WhatsApp: +86 18221755073
Double-layer pre-sintering new process can reduce carbon oxides and nitrogen oxides emission during Iron Ore sintering . For the industrial-scale pilot with a 360 m 2 sinter machine in 26 weeks, the total emission reductions of nitrogen oxides and carbon oxides are 615.4 tons and 45239.8 tons, respectively. (2)
WhatsApp: +86 18221755073حقوق النشر ©2000- 2024 شركة شنغهاي زينيث
