Multichambered steelmaking apparatus and method of steelmaking

A method of steelmaking in a multichambered apparatus comprising steps of:

• charging of a smelting chamber with fireproof powders,
• metal scrap charging through one of at least two input port arranged in a first smelting chamber front wall by means of scoops,
• pouring-in of liquid iron through said input ports,
• charging of flux,
• conducting an oxygen blow with removal of exit gasses into th a second smelting chamber for heating the charged cold metal scrap and further removing of gasses through a gas exhaust channel into a chimney,
• heating and melting of the metalline charge,
• buffing with intermediary slagging-off through a process port provided in the front wall between said input ports,
• executing a formation of a new slag, pure boiling stage, and processing the steel up to a predetermined chemical composition;
• and
• discharging the steel, wherein metal scrap is charged into said smelting chamber in combination with flux, provided that during the steps of scrap and flux charging and liquid pouring-in the first smelting chamber is tilted in the direction of a back wall at an angle of between 20 and 30° relative to a vertical axis, while during said intermediary step of slagging-off the first smelting chamber is tilted in the direction of its front wall, and while discharging said steel the first smelting chamber is tilted in the direction of the back wall at an angle of 45° relative to said vertical axis, and furthermore providing that during said step of conducting oxygen blowing carbon monoxide undergoes afterburning in exit gasses supplied to the second smelting chamber for heating cold metal scrap.

A multichambered steelmaking apparatus, comprising:

• at least two smelting chambers communicating with each other;
• each said smelting chamber comprising a roof, a hearth, an outlet arranged on a side of a chamber back wall, a set of side walls and a front wall with two input ports and a process port arranged between said input ports;
• each said smelting chamber including at least three oxygen supply tuyere installed in said roofs;
• a gas exhaust channel including a gas-cleaning system and at least one chimney;
• each said smelting chamber provided with a tilting device and means for tilting in the direction of said front and back walls at an angle of up to 45° relative to a vertical axis;
• means for moving each said tuyeres in a vertical direction;
• each said smelting chamber further comprising at least two gas-oxygen burners installed on said opposite side walls of said smelting chambers, facing each other at an angle, and located at an angle relative a horizontal axis of said chamber;
• and
• a threshold level of said process port being located lower than a threshold level of said input ports.

A multichambered steelmaking apparatus, comprising:

• at least two smelting chambers communicating with each other;
• each said smelting chamber comprising a roof, a hearth, an outlet arranged on a side of a chamber back wall, a set of side walls and a front wall with two input ports and a process port arranged between raid input ports;
• each said smelting chamber including at least one oxygen supply tuyere installed in said roofs;
• means for moving said at least oxygen supply tuyere vertically relative to respective said chamber;
• a gas exhaust channel including a gas-cleaning system and at least one chimney;
• each said smelting chamber provided with a tilting device and means for tilting in the direction of said front and back walls at an angle of up to 45° relative to a vertical axis;
• means for moving each said tuyeres in a vertical direction;
• and
• each said smelting chamber further comprising at least two gas-oxygen burners installed on said opposite side walls of said smelting chambers, facing each other at an angle, and located at an angle relative a horizontal axis of said chamber.

A multichambered steelmaking apparatus, comprising:

• at least two smelting chambers communicating with each other;
• each said smelting chamber comprising a roof, a hearth, a outlet arranged on a side of a chamber back wall, a set of side walls and a front wall with two input ports and a process port arranged between said input ports;
• each said smelting chamber including at least one oxygen supply tuyere installed in said roofs;
• means for moving said at least one oxygen supply tuyere vertically relative to respective said chamber;
• a gas exhaust channel including a gas-cleaning system and at least one chimney;
• each said smelting chamber provided with a tilting device and means for tilting in the direction of said front and back walls at an angle of up to 45° relative to a vertical axis,
• means for moving each said tuyeres in a vertical direction,
• each said smelting chamber further comprising at least two gas-oxygen burners installed on said opposite side walls of said smelting chambers, facing each other at an angle, and located at an angle relative a horizontal axis of said chamber;
• and,
• a threshold level of said process port being located lower than a threshold level of said input ports.