Metso says it is strengthening its position in pelletising with the Metso Grate Kiln, a system engineered to produce premium-quality pellets that meet the demanding requirements of modern DRI and low-carbon iron and steelmaking processes, supporting customers’ ongoing transition toward more sustainable processes.
Designed to ensure uniform mixing and heating, Metso’s Rotary Kiln technology used in the Grate Kiln system it says delivers consistent pellets with excellent physical and metallurgical properties, including high cold crush strength, optimal porosity, low temperature breakdown, and strong reducibility characteristics.
“The Metso Grate Kiln system delivers exceptional plant flexibility with independent control of the grate, kiln, and cooler, allowing the processing of various ores and the use of solid and alternative fuels – including biomass and hydrogen – supported by proprietary burner technologies,” said Toby McCabe, Product Manager, Pelletising and Green Steel at Metso. “The design ensures consistent, high pellet quality with superior physical and metallurgical properties suitable for both Direct Reduction applications and traditional Blast Furnace routes.”
Engineered for optimal performance and low total cost of ownership, the Metso Grate Kiln system “combines efficient process controls, advanced combustion technologies, improved heat recovery, and digital solutions to enhance safety, efficiency, and overall plant performance.” The digital solutions for the Grate Kiln are designed to further improve process stability and product quality, while also reducing energy consumption. Typical improvements can include a several percent reduction in energy use and a more than 10% increase in pellet quality.
As the original developer of the Grate Kiln induration process, Metso brings more than 65 years of proven expertise, continuous innovation, and comprehensive service capability. With over 55 systems installed globally and a combined annual capacity exceeding 150 Mt, the Metso Grate Kiln system is a reliable solution for producing high-quality pellets for Direct Reduction steel processes as well for the traditional iron making route.
