Lectures:
1) Properties of ores, sinter, pellets, coke, alkaline admixtures and methods of their determination. Theoretical basis of physical-chemical processes at sintering and pelletisation.
2) Charging of blast furnace (BF), distribution of charge on blast furnace top. Normal, external and internal furnace operation.
3) Physical and chemical processes in BF. Thermo-dynamic, kinetic and thermal processes in oxidation zone of BF. Reduction of iron oxides in BF.
4) BF slag. BF blast. Enrichment of blast by oxygen and moistening of blast.
5) Technology of injection of added media.
6) Torpedo ladles.
7) Affinity of elements to oxygen. Distribution of oxygen between slag and metal. Steelmaking slags.
8) Theory of reactions running at steelmaking and steel refining: Oxidation of Si and Mn, transfer of oxygen from atmosphere into hot metal. Dephosphorisation of steel. Desulphurisation of steel. Carbon reaction.
9) Steelmaking in basic oxygen furnaces (BOF) - LD converter, OBM converter. Steelmaking in tandem, electric and SM furnaces.
10) Theoretical basis of steel deoxidation. Methods of deoxidation. Cleanness of steel.
11) Main procedures of steel treatment by secondary metallurgy and their effects.
12) Casting of steel into ingot moulds. Top pouring and bottom pouring. Crystallisation and solidification of steel, segregation.
13) Continuous casting of steel, classification, advantages, disadvantages, economics. Design of continuous casting machine (CCM).
14) Tundish metallurgy. New directions in casting of thin blanks.
Exercises:
Part 1)
1. Calculation of free alkali and quantity of admixtures to ore.
2. Calculation of quantity of coke in charge and admixtures to coke.
3. Calculation of volume of blast and volume of top gas.
4. Partial balances of mass at blast furnace (BF) process.
5. Overall balance of BF process.
6. Calculation of main economic indexes of BF production.
7. Calculation of material and thermal balance of COREX technology.
Part 2)
1. Standards of steel, examples.
2. Reactions between metal and slag, decarburisation of steel, calculations.
3. Reactions of desulphurisation, dephosphorisation and decarburisation of steel, examples, calculations.
4. Calculation of material and thermal balance of LD process.
5. Plant tour.
6. Video-programs – steelmaking and treatment of steel by secondary metallurgy, EAF, CCM.
7. Evaluation of exercises, credit.
1) Properties of ores, sinter, pellets, coke, alkaline admixtures and methods of their determination. Theoretical basis of physical-chemical processes at sintering and pelletisation.
2) Charging of blast furnace (BF), distribution of charge on blast furnace top. Normal, external and internal furnace operation.
3) Physical and chemical processes in BF. Thermo-dynamic, kinetic and thermal processes in oxidation zone of BF. Reduction of iron oxides in BF.
4) BF slag. BF blast. Enrichment of blast by oxygen and moistening of blast.
5) Technology of injection of added media.
6) Torpedo ladles.
7) Affinity of elements to oxygen. Distribution of oxygen between slag and metal. Steelmaking slags.
8) Theory of reactions running at steelmaking and steel refining: Oxidation of Si and Mn, transfer of oxygen from atmosphere into hot metal. Dephosphorisation of steel. Desulphurisation of steel. Carbon reaction.
9) Steelmaking in basic oxygen furnaces (BOF) - LD converter, OBM converter. Steelmaking in tandem, electric and SM furnaces.
10) Theoretical basis of steel deoxidation. Methods of deoxidation. Cleanness of steel.
11) Main procedures of steel treatment by secondary metallurgy and their effects.
12) Casting of steel into ingot moulds. Top pouring and bottom pouring. Crystallisation and solidification of steel, segregation.
13) Continuous casting of steel, classification, advantages, disadvantages, economics. Design of continuous casting machine (CCM).
14) Tundish metallurgy. New directions in casting of thin blanks.
Exercises:
Part 1)
1. Calculation of free alkali and quantity of admixtures to ore.
2. Calculation of quantity of coke in charge and admixtures to coke.
3. Calculation of volume of blast and volume of top gas.
4. Partial balances of mass at blast furnace (BF) process.
5. Overall balance of BF process.
6. Calculation of main economic indexes of BF production.
7. Calculation of material and thermal balance of COREX technology.
Part 2)
1. Standards of steel, examples.
2. Reactions between metal and slag, decarburisation of steel, calculations.
3. Reactions of desulphurisation, dephosphorisation and decarburisation of steel, examples, calculations.
4. Calculation of material and thermal balance of LD process.
5. Plant tour.
6. Video-programs – steelmaking and treatment of steel by secondary metallurgy, EAF, CCM.
7. Evaluation of exercises, credit.