201623 · Grate‐kiln‐cooler is a predominant process of producing iron ore pellets in China. Since this process is of multi‐variant, strong coupling and large hysteresis characteristics, a reliable performance monitoring is thus essential to ensure product quality and economic benefits.
view more2019711 · The model is applied to assess the process in terms of heat and mass flows. The thermodynamic assessment is carried out on an overall basis and for each of the three main process parts: grate, kiln and cooler.
view more202333 · The present work describes a project where Advanced Process Control techniques are applied to a clinker rotary kiln and a clinker grate cooler. Model Predictive Control was selected as the main control strategy. Linear models with delays are obtained through ad hoc plant experiments and suitably included in the controllers' formulation.
view moreIron ore pellets are often produced using the so-called Grate-Kiln process, which is designed to oxidize the magnetite (Fe3O4) to hematite (Fe2O3) and to sinter the pellets so they can be used in steel manufacturing. The heat required for this process comes from the combustion of a pulverized fuel in a rotary kiln, involving the formation of a jet flame. To …
view more2022627 · This master thesis work will only focus on the pellets in the rotary kiln section in the grate-kiln process, i.e, not the grate or cooler sections. Other limitations in this project include: The master thesis will mainly focus on the combustion fuels, hydrogen gas, oil …
view more200981 · Abstract During the re-configuration of their grate-kiln induration system for the firing of iron ore pellets at the Whyalla Steelworks, caused by a change from an earthy hematite to a magnetite ore with considerably less flux, OneSteel commissioned a detailed thermal flow analysis of the design options on the existing cooler in support of the process …
view more202333 · The main objectives of the controllers are to control the rotary kiln and grate cooler critical process variables while minimizing the fuel/coal specific consumption of the kiln and the electric energy consumption of the cold air fan units within the cooler.
view more202359 · The grate-kiln process, which has been inspired from furnaces designed in the cement industry, uses three distinct pieces of equipment to carry out the induration process: a preheat travelling grate, a rotary kiln, and an annular or straight cooler. Drying and preheating of the green pellets is accomplished on the preheat grate, while the …
view more202333 · The cement industry involves energy‐intensive processes such as clinker rotary kilns and clinker grate coolers. Clinker is the fundamental component of the cement, which is produced through a baking process in a kiln and a subsequent cooling process in a cooler, and large amounts of thermal and electric energy are required [1]. In many cement …
view moreBased on over 30 years' experiences in design, production and service of crushing and s
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