In iron ore pelletization, bentonite is commonly used as an agglomeration aid to augment pellet growth and add physical strength to the pellets. While bentonite is effective as a binder it has a contaminating effect on the chemical quality of the pellets, adding both silica and aluminum gangue.
3 FLOFORM™ Iron Ore Pelletization Use of FLOFORM™ Pelletization is a tumble/growth agglomeration mechanism for solid particulates, which must comply with several key points from the strength of the liquid bond during the seeding, the control of the water migration during the balling to the solid bonds resistance during
Iron ore pelletizing systems. Iron ore fines are agglomerated into pellets and then indurated using a furnace to create iron ore pellets. These are typically fed to a blast furnace or DRI plant as part of the process to make steel.
GIMBOND ® is natural high swelling sodium based bentonite of exceptional purity. It is mined and processed in North West part of India. GIMBOND ® is sodium activated bentonite designed to meet the requirements of pelletization industries. GIMBOND ® is used as green and dry ore binder for all kind of pellets. GIMBOND ® offers superior performance as per ASTM Specifications.
The pelletization behavior of an iron ore as well as the properties of the pellets produced are affected by the various properties of the ore.
Pelletizing of iron ore. The configuration of iron ore pellets as packed spheres in the blast furnace allows air to flow between the pellets, decreasing the resistance to the air that flows up through the layers of material during the smelting. The configuration of iron ore powder in a blast furnace is more tightly-packed and restricts the air flow.
Mining companies work toward obtaining pellets with customized properties for each type of ironmaking process and also to meet specific requirements of different iron- and steelmaking companies. Hence, the amount and quality of supplied iron ore products are important but also to provide a diversity of types of pellets.
Iron Ore and Pellets. Vale is the world’s biggest producer of iron ore and pellets, raw materials essential to the manufacture of steel. Iron ore is found in nature in the form of rocks, mixed with other elements. By means of various industrial processes incorporating cutting-edge technology, iron ore is processed and then sold to steel companies.
The pelletization process is the primary consumer of binders in the iron ore industry. The selection of an appropriate binder type and dosage is of critical importance in producing good quality pellets at a reasonable price.