Method and device for producing molten material

Franz Hauzenberger; Norbert Rein; Kurt Wieder; Johannes Schenk; Bogdan Vuletic; Martin Schmidt; Johann Wurm; Robert Millner

Method and device for producing molten material

Franz Hauzenberger (Inventor)
, Norbert Rein (Inventor)
, Kurt Wieder (Inventor)
, Johannes Schenk (Inventor)
, Bogdan Vuletic (Inventor)
, Martin Schmidt (Inventor)
, Johann Wurm (Inventor)
, Robert Millner (Inventor)

Chair of Ferrous Metallurgy (220)

SIEMENS VAI METALS TECH SAS

Research output: Patent

Abstract

The invention relates to a method for producing molten material, wherein oxygen, reducing agents and iron that has been reduced in a reduction reactor are introduced into a melter gasifier (3). The reducing agent is gasified with the oxygen and the heat thereby produced melts the reduced iron. The coupling gas from the melter gasifier (3) is used at least as a portion of the reduction gas. Reacted top gas is withdrawn from the reduction reactor (1). The aim of the invention is to increase energy efficiency and raw material efficiency. For this purpose, at least a portion of the thermal energy of the top gas and/or of the portion of the reduction gas used as the cooling gas and surplus gas is used for indirectly heating at least one additional gas that is used in the method. At least one heat exchanger (15, 18, 21) is arranged in a line (9 and/or 23) for the top gas and/or the portion of the reduction gas used as the cooling gas and surplus gas, at least one additional gas used in the method flowing through said heat exchanger (15, 18, 21).

Original language	English
Patent number	CN101636510
IPC	C21B 13/ 14 A I
Priority date	1/10/07
Publication status	Published - 27 Jan 2010

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Cite this

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title = "Method and device for producing molten material",

abstract = "The invention relates to a method for producing molten material, wherein oxygen, reducing agents and iron that has been reduced in a reduction reactor are introduced into a melter gasifier (3). The reducing agent is gasified with the oxygen and the heat thereby produced melts the reduced iron. The coupling gas from the melter gasifier (3) is used at least as a portion of the reduction gas. Reacted top gas is withdrawn from the reduction reactor (1). The aim of the invention is to increase energy efficiency and raw material efficiency. For this purpose, at least a portion of the thermal energy of the top gas and/or of the portion of the reduction gas used as the cooling gas and surplus gas is used for indirectly heating at least one additional gas that is used in the method. At least one heat exchanger (15, 18, 21) is arranged in a line (9 and/or 23) for the top gas and/or the portion of the reduction gas used as the cooling gas and surplus gas, at least one additional gas used in the method flowing through said heat exchanger (15, 18, 21).",

author = "Franz Hauzenberger and Norbert Rein and Kurt Wieder and Johannes Schenk and Bogdan Vuletic and Martin Schmidt and Johann Wurm and Robert Millner",

year = "2010",

month = jan,

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language = "English",

type = "Patent",

note = "CN101636510; C21B 13/ 14 A I",

}

TY - PAT

T1 - Method and device for producing molten material

AU - Hauzenberger, Franz

AU - Rein, Norbert

AU - Wieder, Kurt

AU - Schenk, Johannes

AU - Vuletic, Bogdan

AU - Schmidt, Martin

AU - Wurm, Johann

AU - Millner, Robert

PY - 2010/1/27

Y1 - 2010/1/27

N2 - The invention relates to a method for producing molten material, wherein oxygen, reducing agents and iron that has been reduced in a reduction reactor are introduced into a melter gasifier (3). The reducing agent is gasified with the oxygen and the heat thereby produced melts the reduced iron. The coupling gas from the melter gasifier (3) is used at least as a portion of the reduction gas. Reacted top gas is withdrawn from the reduction reactor (1). The aim of the invention is to increase energy efficiency and raw material efficiency. For this purpose, at least a portion of the thermal energy of the top gas and/or of the portion of the reduction gas used as the cooling gas and surplus gas is used for indirectly heating at least one additional gas that is used in the method. At least one heat exchanger (15, 18, 21) is arranged in a line (9 and/or 23) for the top gas and/or the portion of the reduction gas used as the cooling gas and surplus gas, at least one additional gas used in the method flowing through said heat exchanger (15, 18, 21).

AB - The invention relates to a method for producing molten material, wherein oxygen, reducing agents and iron that has been reduced in a reduction reactor are introduced into a melter gasifier (3). The reducing agent is gasified with the oxygen and the heat thereby produced melts the reduced iron. The coupling gas from the melter gasifier (3) is used at least as a portion of the reduction gas. Reacted top gas is withdrawn from the reduction reactor (1). The aim of the invention is to increase energy efficiency and raw material efficiency. For this purpose, at least a portion of the thermal energy of the top gas and/or of the portion of the reduction gas used as the cooling gas and surplus gas is used for indirectly heating at least one additional gas that is used in the method. At least one heat exchanger (15, 18, 21) is arranged in a line (9 and/or 23) for the top gas and/or the portion of the reduction gas used as the cooling gas and surplus gas, at least one additional gas used in the method flowing through said heat exchanger (15, 18, 21).

M3 - Patent

M1 - CN101636510

ER -