Avani Energy & Resources Pvt Ltd

Rourkela, Odisha

Semi-finished metal produced from iron ore in blast furnace, containing 92 percent iron, high amounts of carbon (typically up to 3.5 percent), and balance largely manganese and silicone plus small amounts of phosphorus, sulfur, and other impurities. Pig iron is further refined in a furnace for conversion into steel. It gets its name from the shape of trough (resembling a pig) in which it used to be cast in the 19th century.

The process of sponge iron making aims to remove the oxygen from iron ore. The quality of sponge iron is primarily ascertained by the percentage of metallization (removal of oxygen), which is the ratio of metallic iron to the total iron present in the product. Sponge iron manufacture is highly sensitive to raw material characteristics. Therefore, it is essential to examine the chemical and physical characteristics of raw materials, both individually and in combination. The basic raw materials for the production of sponge iron are iron ore, non-coking coal and dolomite. Sizing of the Raw materials also play vital role in sponge iron manufacturing process. The required size of Iron ore, MPS (Mean particle size) , its physical properties like T.I., A.I. & chemical properties like Fe (T), LOI, gangue content In Sponge Iron Process , two types of coal are being used such as feed coal and injection coal.

Iron Pellets are spheres of typically 6-18 mm to be used as raw material for blast furnaces. They typically contain 64%-72% Fe and various additional material adjusting the chemical composition and the metallurgic properties of the pellets. The process of pelletizing combines mixing of the raw material, forming the pellet and a thermal treatment baking the soft raw pellet to hard spheres. The raw material is rolled into a ball, then fired in a kiln or in travelling grate to sinter the particles into a hard sphere. 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. This is the reason that iron ore is preferred in the form of pellets rather than in the form of finer particles.

TMT bars find their application in many avenues. They are used for constructing: Bridges Dams High-rise apartments Industrial structures Flyovers Apart from the above, there are several other verticals where these bars are used.