A Comparison of Pellet Quality from Straight-grate and Grate-kiln Furnaces

Copeland, C. R.; Claremboux, V.; Kawatra, S. Komar

doi:10.1080/08827508.2018.1536050

Cited by 15 publications

(2 citation statements)

References 26 publications

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“…During the drying and preheating (PH) process, the green pellet bed undergoes a complex exchange of heat with high-temperature air, leading to a series of chemical reactions such as water evaporation, magnetite oxidation, and carbonate decomposition. 2 However, due to the closed system of production equipment and the intricate nature of the reaction process, many state parameters cannot be directly measured. As early as the 1980s, Young et al, 3 Thurlby et al 4 and Thurlby 5 established some relatively complete simulation models for travelling grate and moving grate-rotary kiln, which laid the foundation for subsequent research.…”

Section: Introductionmentioning

confidence: 99%

An integrated optimal control model for the drying and preheating process in iron ore pellet manufacturing

Huang,

Fan,

et al. 2024

Ironmaking & Steelmaking: Processes, Products and Applicati

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The drying and preheating process plays a crucial role in the induration of iron ore pellets. It is conducted on a closed, moving bed in both the straight grate and grate-kiln processes. The internal state of the pellet bed cannot be measured and the manipulated parameters are set according to the experience. An integrated optimal control model based on the numerical simulation and intelligent algorithm is proposed. In this model, the moisture content and temperature of pellets in each stage are predicted via the mathematical simulation, and the inlet gas temperature is optimally set and real-time controlled through the multi-objective optimisation and Takagi–Sugeno fuzzy control methods. The proposed model has been successfully applied to a large-scale pelletising plant. The closed-loop running results illustrate that the thermal state of the pellet bed becomes stable, and the pellet production is improved while the mixed gas consumption is reduced.

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Section: Introductionmentioning

confidence: 99%

An integrated optimal control model for the drying and preheating process in iron ore pellet manufacturing

Huang,

Fan,

et al. 2024

Ironmaking & Steelmaking: Processes, Products and Applicati

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show abstract

“…In all of these cases, the concentrate has had its size reduced to a fine dust, which presents many challenges for both transportation and utilization (Copeland et al, 2019). Fine dusts can be easily caught in the air, resulting in product losses to the wind and atmosphere while presenting considerable worker health risks due to exposure to fine airborne particles.…”

Section: Background On Iron Ore Pelletizationmentioning

confidence: 99%