Method and smelting unit for pyrometallurgical smelting of metal-containing raw materials, waste materials and/or secondary waste materials
AssigneeSMS group GmbH
InventorsFrank Marlin KAUSSEN, Nikolaus Peter Kurt BOROWSKI, Timm LUX, Rolf DEGEL
Life of this patent
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Abstract
The present disclosure relates to a method and a smelting unit (1) for the pyrometallurgical smelting of metal-containing raw materials, waste materials and/or secondary waste materials (M) in the presence of an oxidizing, reducing and/or inert gas (G).
Claims17
-16. (canceled)
A method for pyrometallurgical smelting, comprising:
- feeding metal-containing raw material, waste material and/or secondary waste material (M) in shredded form to a smelting unit (1) which comprises
- a smelting zone (6),
- a main reaction zone (7), and
- a secondary reaction zone (8);
- and
- smelting the material (M) in presence of an oxidizing, reducing and/or inert gas and/or gas mixture (G), and thereby forming
- a liquid melt phase (9),
- a liquid slag phase (10), and
- a gas phase,
- wherein the oxidizing, reducing and/or inert gas and/or gas mixture (G) is blown into the liquid slag phase (10) via at least one injector (11) arranged in the smelting unit (1) above the liquid slag phase (10) and without contacting the liquid slag phase (10) at an angle of 5 to 85° with respect to a horizontal.
A smelting unit (1) for pyrometallurgical smelting of metal-containing raw materials, waste materials and/or secondary waste materials (M) in presence of an oxidizing, reducing and/or inert gas and/or gas mixture (G), comprising:
- a smelting zone (6) bounded by a reactor wall (3),
- a main reaction zone (7),
- a secondary reaction zone (8), and
- at least one injector (11) arranged in the reactor wall (3),
- wherein the at least one injector (11) is arranged in the secondary reaction zone (8) and is oriented at an angle of 5 to 85° with respect to a horizontal in such a manner that the oxidizing, reducing and/or inert gas and/or gas mixture (G) can be blown into a liquid slag phase (10) from above.
A method for pyrometallurgical smelting, comprising:
- feeding metal-containing raw material, waste material and/or secondary waste material (M) in shredded form to a smelting unit (1) which comprises
- a smelting zone (6),
- a main reaction zone (7), and
- a secondary reaction zone (8);
- and
- smelting the material (M) in presence of an oxidizing, reducing and/or inert gas and/or gas mixture (G), and thereby forming
- a liquid melt phase (9),
- a liquid slag phase (10), and
- a gas phase,
- wherein the oxidizing, reducing and/or inert gas and/or gas mixture (G) is fed in compressed form via at least one injector (11) and is adiabatically expanded within the smelting unit (1) and is then blown as adiabatically expanded gas and/or gas mixture into the liquid slag phase (10) in such a manner that a cooling effect of at least 10 J/Nm3 is achieved.
Dependencies are inferred from the claim text.