This visionary concept considers all relevant factors for energy efficiency, plant production, and pellet quality to enable a holistic optimization of the performance of the pelletizing process. It follows a modular approach to minimize the sources of CO2 from the three carbon-intensive steps involved in pelletizing, and introduces further improved gas schemes, advanced combustion and burner technology (LowNOx, Hydrogen, and alternative fuels) as well as increased plant stability and performance by advanced process control.
Key highlights
Traveling Grate Pelletizing
The traveling grate indurating process is responsible for two-thirds of the world’s installed pelletizing capacity.
Metso offers the industry’s leading induration technology for iron ore pellet processing, which is based
on over 60 years of experience and world-class R&D.
This process produces pellets with excellent physical and metallurgical properties for a wide range of plant capacities up to >9 Mtpa. It ensures high performance and quality, low investment and operating costs, as well as reduced energy consumption and emissions. Since 1961, Metso has delivered more than 75 plants all over the world for a wide range of ore types. This is a testament to our market leadership and proven expertise throughout the years.
Evolving to changing needs
Carbon-neutral steelmaking and reduced greenhouse gas emissions are at the forefront of conversation in the steel industry today. Evidently, the transition to carbon-neutral steelmaking cannot be achieved without pelletizing with the availability of DR-grade iron ore pellets playing a crucial role.
While productivity, energy efficiency and emission levels of the plants have been significantly improved during the past 60 decades, the global challenge of climate change requires more drastic modernizations in design and operations in order to reduce the carbon footprint of these plants. Because of this, we have evolved our existing processes and developed the next generation of pelletizing plants to become carbon neutral and fully autonomous.
Technologically advanced pelletizing process
In-house proprietary equipment
Metso proprietary equipment is always included for the main process areas.
It relies on the decades of process engineering experience and high degree of modularization:
- Pelletizing discs
- Special conveyors at feed station
- Roller screens
- Indurating machine
- Pallet Cars
- Digital Solutions
- Burners (Standard, LowNOx)
Using digital solutions to build fully autonomous, modular, flexible & sustainable pellet plants
The increasing quality of DR-grade pellets require more stable operations in a narrower operating window and thus, higher level process control where the need for human intervention is minimized. Here, advanced process control (APC) is of paramount importance. The already available Metso Optimus process advisor controls the processes in the induration furnace by means of pressure, temperature, and fan-speed control.
The final aim is to control the entire process based on online measurement of the quality (strength and metallurgical composition) of the burned pellets.
Learn more about our Digital Solutions for pellet plants here
An economical offering even for smaller-sized pellet plants
Smaller capacity plants allow mining companies to expand their value chain and support decentralized steel-making concepts such as mini-mills. Metso Compact-sized Pellet Plant answers this need with a design based on a 3-meter wide indurating machine. It offers the same high performance and premium product quality as the larger size plants.
High level of standardization ensures optimized capital and operating costs, as well as the shortest production time. At the same time, the modular plant design allows flexibility for customization and future upgrades.
Innovations that optimize investments as well as operating costs.
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