Modeling and optimization method featuring multiple operating modes for improving carbon efficiency of iron ore sintering process

Chen, Xin; Chen, Xiaoxia; Wu, Min; She, Jinhua

doi:10.1016/j.conengprac.2016.05.007

Cited by 39 publications

(9 citation statements)

References 21 publications

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“…[84] BTP, burn-through point a two-steps optimization was developed for CCR under multiple working conditions. [93] The first step was to identify operating modes using K-means clustering, and then build CCR prediction models for different modes. The second step was to use PSO to solve the established optimization model.…”

Section: Optimization Modelling For Sintering Processmentioning

confidence: 99%

Data‐driven modelling methods in sintering process: Current research status and perspectives

et al. 2022

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The sintering process, as a primary modus of the blast furnace ironmaking industry, has enormous economic value and environmental protection significance for the iron and steel enterprises. Recently, with the emergence of artificial intelligence and big data, data‐driven modelling methods in the sintering process have increasingly received the researchers' attention. But now, there is still no systematic review of the data‐driven modelling approaches in the sintering process. Therefore, in this article, we conduct a comprehensive overview and prospects on the data‐driven models for the purpose of intelligent sintering. First, the mechanism and characteristics of the sintering process are introduced and analyzed elaborately. Second, the detailed research status of the sintering process is illustrated from four aspects: key parameters prediction, control, optimization, and others. Finally, several challenges and promising modelling methods such as deep learning in the sintering process are outlined and discussed for future research.

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Section: Optimization Modelling For Sintering Processmentioning

confidence: 99%

Data‐driven modelling methods in sintering process: Current research status and perspectives

et al. 2022

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“…The sinter fuel in the sinter bed generates a high-temperature combustion zone as it burns. The heat generated from the sintering process facilitates chemical reactions and changes in the physical structure of the sinter fuel [3]. Several phases (wet phase, preheating phase, dry phase, combustion phase, melting phase and product phase) are formed successfully as the sinter process continues [3].…”

Section: Sintering Processmentioning

confidence: 99%

“…The heat generated from the sintering process facilitates chemical reactions and changes in the physical structure of the sinter fuel [3]. Several phases (wet phase, preheating phase, dry phase, combustion phase, melting phase and product phase) are formed successfully as the sinter process continues [3]. The melting phase (bonding phase) normally forms when the ore temperature is above 1100 °C [7].…”

Section: Sintering Processmentioning

confidence: 99%

“…The sintering process is complex and includes more than 13 chemical reactions that may take the form of mineral formation or coke combustion, and different physical changes like transfer of heat and mass. According to previous research, several steps exist in the sintering process, however the main ones cover proportioning, mixing and sintering [3]. The various stages of sintering are shown in Figure 1 which represents the sintering machine.…”

Section: Sintering Processmentioning

confidence: 99%

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Review on alternative fuel application in iron ore sintering

Alex

Wang

Fang

et al. 2021

Ironmaking & Steelmaking

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Various kinds of fuel such as high rank coal and coke breeze have been adopted over the years. However, their low combustion efficiency levels have given rise to the production of alternative fuels such as charcoal, biomass, semi-coke breeze, solid waste and gas, but the most extensively applied in recent times is semi-coke due to its high combustion efficiency and low pollutant emission level as compared to the other alternative fuels. The aim of this work is to review alternative fuels reported in literature as effective and efficient in powering sinter plants. This review presents problems that may occur with the adoption of each kind of alternative fuel, and their relative combustion efficiencies as compared to the other. Also, the kind of alternative fuel utilized in powering sinter plants may contribute to escalation of climate change and its variability or result in their drastic reduction.

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“…Sintering ignition is an important process in sintering . The purpose of sintering ignition is to burn solid fuel on the surface of sinter mixture.…”

Section: Introductionmentioning

confidence: 99%

EID‐Estimation‐Based Periodic Disturbance Rejection for Sintering Ignition Process with Input Time Delay

Chen

Wei

et al. 2017

Asian Journal of Control

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Sintering plays a key role in generating blast furnace burden in metallurgical processes. The continuous production and stable quality of sintering significantly depends on the stable and precise control of sintering ignition, which, however, is achieved through an input time delay system, and suffers from different and unknown disturbances. To reject disturbances and enhance the control precision of ignition temperature, this paper introduces a modified equivalent input disturbance (EID)-based disturbance compensation that is suitable for controlling sintering ignition. First, the periodic properties of disturbances induced by gas pressure fluctuations are obtained based on spectral density decomposition. Second, to obtain the dynamics of sintering ignition, an iterative subspace modeling method is developed, which estimates not only the model parameters but also the length of time delay. By considering the periodic property, a control structure of sintering ignition based on the modified EID-based compensation is proposed, in which an additional time-delay element is designed to make the phase difference between EID estimation and real disturbance close to zero. Finally, the validity of the proposed method is verified by a simulation.

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Modeling and optimization method featuring multiple operating modes for improving carbon efficiency of iron ore sintering process

Cited by 39 publications

References 21 publications

Data‐driven modelling methods in sintering process: Current research status and perspectives

Data‐driven modelling methods in sintering process: Current research status and perspectives

Review on alternative fuel application in iron ore sintering

EID‐Estimation‐Based Periodic Disturbance Rejection for Sintering Ignition Process with Input Time Delay

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