THERMAL ENERGY MANAGEMENT OF BLAST FURNACE PLANT

D.Satyagovindamma, D.Azad

Abstract: The Blast Furnace is a type of metallurgical furnace used for smelting to produce industrial metals, generally iron, but also others such as lead or copper. The product is a liquid pig iron which is suitable for subsequent refining to steel. The raw materials used in the blast furnace are coke, iron ore, sinter, additives and air. Then final products of the blast furnace is molten pig iron, slag and top gas. The main product of the blast furnace is molten pig iron and by products are slag and top gas. During the process of formation of molten metal, CaO is chemically reacted with SiO2 and from the slag, this slag is send to slag granulation plant. During the above process some gasses are liberated and these gasses are N2, CO, CO2, H2 and H2O these are all top gasses, it contains high temperature nearly 200°C. The main aim of this project is to calculate the mass of coke required in the blast furnace using heat balance. To perform the energy balance in the blast furnace one must identify the heat inputs and outputs based on the processes and reactions taken place in the furnace. Then the parameters in the equations are known quantities except the mass coke

Keywords: Blast furnace, mass of coke, heat inputs, heat outputs, molten pig iron

DOI: https://doi.org/10.15623/ijret.2015.0405104