Converter process for the production of iron
AssigneeTechnological Resources Pty. Limited
InventorKarl Brotzmann
Life of this patent
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Abstract
A process for the production of iron from ferrous raw materials, the process comprising conducting a production phase and a tapping phase, the production phase including feeding fuel to an iron bath contained in a converter, continuously feeding ferrous raw materials to the iron bath through a gas space above the iron bath, continuously blowing oxygenous gases onto the surface of the iron bath, reducing the ferrous raw materials with the fuel to produce reduced iron, afterburning reaction gases comprising CO and H.sub.2 emerging from the iron bath with oxidizing gases in the gas space to produce heat, and transferring the heat to the iron bath; and the tapping phase including removing 40% to 90% of the iron bath to produce a final bath which can then be used as an initial bath in a subsequent production phase.
Claims18
A process for the production of iron from ferrous raw materials, the process comprising:
- (1) conducting a production phase, said production phase comprising:
- feeding fuel to an iron bath contained in a converter, said iron bath having a surface;
- continuously feeding ferrous raw materials to said iron bath through a gas space above said iron bath;
- continuously blowing oxygenous gases onto said surface of said iron bath, said oxygenous gases containing no more than 50% oxygen;
- reducing said ferrous raw materials with said fuel to produce reduced iron, thereby generating reaction gases comprising CO and H.sub.2 emerging from said iron bath;
- afterburning said reaction gases with oxidizing gases in said gas space to produce heat;
- transferring said heat produced by said afterburning to said iron bath;
- (2) after said production phase, conducting a tapping phase, said tapping phase comprising removing a part of said iron bath, thereby leaving a final iron bath in said converter, said final iron bath forming an initial bath for a subsequent production phase;
- said initial iron bath weighing 10%-60% of the weight of said iron bath after said production phase and before said tapping phase.
A process for the production of iron from ferrous raw materials, the process comprising:
- feeding fuel to an iron bath contained in a converter, said iron bath having a surface, continuously feeding ferrous raw materials to said iron bath through a gas space above said iron bath, continuously blowing oxygenous gases onto said surface of said iron bath, said oxygenous gases containing no more than 50% oxygen, reducing said ferrous raw materials with said fuel to produce reduced iron, thereby generating reaction gases comprising CO and H.sub.2 emerging from said iron bath, afterburning said reaction gases with oxidizing gases in said gas space to produce heat, transferring said heat produced by said afterburning to said iron bath;
- and then
- removing 40% to 90% of said iron bath;
- and then
- feeding fuel to said iron bath, continuously feeding ferrous raw materials to said iron bath through said gas space above, continuously blowing oxygenous gases onto said surface of said iron bath, said oxygenous gases containing no more than 50% oxygen, reducing said ferrous raw materials with said fuel to produce reduced iron, thereby generating reaction gases emerging from said iron bath, afterburning said reaction gases with oxidizing gases in said gas space to produce heat, and transferring said heat produced by said afterburning to said iron bath.
Dependencies are inferred from the claim text.