JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Course Objective:

The course objective is to provide the knowledge of Iron making by Blast Furnace, Physio- chemical principles involved in iron making, recent advances. Necessity and advantages of alternative routes of iron making.

Outcome: The student will be in a position to understand the process of Iron Making in detail, there by he/she would be understanding the process variables to enhance the productivity and efficiency of the Blast Furnace and alternative routes of Iron Making.

UNIT - I

History of Iron making, valuation of iron ores and classification of iron ores, Principles of Iron making, Reduction, Smelting, Direct Reduction, Smelt Reduction; Raw materials for Iron making, their distribution, occurrence in India and in the world.

UNIT - II

Preparation of iron ores; Agglomeration of Iron ore fines, Sintering; Principles, Factors affecting sintering, sintering bonds, sintering machines; Pelletisation; Theory of Pelletisation, Water-particles system. Production of green pellets in; disk and drum pelletizers, Induration of pellets, Shaft, traveling grate and continues grate kiln machine.

UNIT - III

Blast Furnace profile and its design, Refractory lining. Water cooling system. Raw materials handling and charging, Burden distribution, Construction and operation of Hot blast Stoves. Gas cleaning system and its utilization

UNIT - IV

Physical chemistry of Iron making, Blast furnace reactions, Physical and chemical factors affecting reduction of ores; Effect of temperature CO/CO2 and H2/H2O on reduction of iron ore. Control of C, Si, S, P in pig iron. Types of Pig Irons & Blast furnace Slags and its properties. Blast furnace operations and difficulties, Modern Trends in Blast furnace; Burden calculations, Limitations of Blast furnace Iron production,;

UNIT - V

Alternate Routes of Iron Making, Principles of Sponge Iron Making, Degree of Metallization, Percentage Reduction, Classification of Sponge Iron making methods. Using gases reducing agent, process as Midrex , HY and Krupp-Renn, Using solid reducing agent process such as SL/RN process, Smelt Reduction Methods; COREX, INRED, ELRED, Plasma Smelting; Sponge Iron making in India.

R16 B.TECH METALLURGY AND MATERIALS ENGG.

TEXT BOOKS:

• 1. Principles of Blast furnace Iron making – A.K Biswas
• 2. Beyond Blast furnace – Amit Chaterjee – CRC Press
• 3. Modern Iron Making – Dr. R. H. Tupkary

REFERENCES:

• 1. Iron making and Steel making – Ahindra Ghosh & Amit Chaterjee PMI Pvt. Ltd. 2008
• 2. Hand Book of Extractive Metallurgy – Fathi Habhashi Vol. 1 Metals Industry Ferrous Metals R16 B.TECH METALLURGY AND MATERIALS ENGG.