Real-time continuous analysis in iron and steel production
Real-time continuous analysis in iron and steel production
Most iron and steel producers are struggling with the unstable chemical and mineralogical composition of iron ore, including elements such as Fe, Si, Ca, Al, Mg, and C, as well as minerals such as magnetite and hematite. It has an effect on important properties of sinter, iron concentrate and pellets.
It not only leads to customer claims due to lower and unstable quality of sinter, pellets, iron and steel, but also significantly increases production costs, i.e., coke and energy consumption in sintering and blast furnace production.
Thanks to continuous control of Fe, SiO₂, CaO, MgO, Al₂O₃ etc. by Lyncis online LIBS analyzers directly in the production process you can control material flows in real time.
Installation examples
Quality control of raw materials for ironmaking - iron ore, fluxes and fuel
- Quality control of crushed iron ore and fuel (coal, coke) to reject off-grade materials that can deteriorate the quality of iron concentrate, sinter and pellets to penalties lead
- Stockpiling of iron ore and iron concentrate with pre-set iron content
- Fluxes (limestone, dolomite) and fuel (coal and coke) quality control in sintering and blast furnace production
Sinter mix basicity stabilization by real-time fluxes dosage
Technological tasks
- Continuous automatic fluxes dosage to the sinter mix to get the required sinter basicity and strength
- Accurate dosage of fluxes, coal and water for pelletizing to get the required pellets quality
Elements of interest
Fe, SiO₂, CaO, MgO, Al₂O₃
Financial benefits
- Stable sinter basicity and strength
- Fuel economy during sintering and blast furnace processes
Installations of Lyncis cross-belt analyzers in steel industry
- Sinter basicity control
- Improve sinter hardness
- Quality control of iron concentrate and pellets to reject off-grade material and prevent customer claims
Online monitoring and process control by SCADA based on Lyncis online analyzer data
- Compare of Lyncis cross-belt analyzer's avarage 5 minutes data (blue) with average 2-hours laboratory analysis (violet)
Benefits of online process control in ironmaking
- Reduced production expenses for commercially valueless material by removing them prior to the further processing, as problems in the process can be identified at much earlier stages
- Improved efficiency and stable sintering and blast furnace production
- Reduced operational costs by savings in fuel, water and reagents in sintering, pelletizing and blast furnace production
- Stable quality of sinter, pellets and iron as requested by your customers.