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DE3720648A1 - Method for converting a blast furnace into a smelting gasifier, and use of air as a gasificant - Google Patents

Method for converting a blast furnace into a smelting gasifier, and use of air as a gasificant

Info

Publication number
DE3720648A1
DE3720648A1 DE19873720648 DE3720648A DE3720648A1 DE 3720648 A1 DE3720648 A1 DE 3720648A1 DE 19873720648 DE19873720648 DE 19873720648 DE 3720648 A DE3720648 A DE 3720648A DE 3720648 A1 DE3720648 A1 DE 3720648A1
Authority
DE
Germany
Prior art keywords
blast furnace
air
converting
gasifier
gasificant
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
DE19873720648
Other languages
German (de)
Inventor
Artur Richard Greul
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GREUL, ARTUR RICHARD, 6050 OFFENBACH, DE
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE3608150A external-priority patent/DE3608150C1/en
Application filed by Individual filed Critical Individual
Priority to DE19873720648 priority Critical patent/DE3720648A1/en
Publication of DE3720648A1 publication Critical patent/DE3720648A1/en
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/16—Making or repairing linings ; Increasing the durability of linings; Breaking away linings
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/02—Making special pig-iron, e.g. by applying additives, e.g. oxides of other metals
    • C21B5/023—Injection of the additives into the melting part
    • C21B5/026—Injection of the additives into the melting part of plastic material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B1/00—Shaft or like vertical or substantially vertical furnaces
    • F27B1/10—Details, accessories or equipment specially adapted for furnaces of these types
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
    • F27M2003/00—Type of treatment of the charge
    • F27M2003/18—Degasifying

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

Method for converting a blast furnace into a smelting gasifier, and use of air as a gasificant by fitting new tuyeres a) at the level of the belly and b) in the upper half of the shaft, and converting the old tuyeres into gas outlets and closing off the upper gas offtakes.

Description

Wie das Hauptpatent betrifft die Erfindung die Erstellung eines Schmelzvergasers sowie die Verwendung von Luft als Vergasungsmittel.Like the main patent, the invention relates to the creation a melting gasifier and the use of air as Gasifying agent.

Die Funktion eines Hochofens ist jedem Fachmann bekannt, so daß sie nicht mehr näher beschrieben werden muß. Es wer­ den in absehbarer Zeit viele Hochöfen stillgelegt werden müssen, da eine hohe Überkapazität vorhanden ist. Die Um­ rüstung dieser Aggregate und ihre Weiterverwendung als Schmelzvergaser zur Vergasung von brikettiertem Hausmüll, hausmüllähnlichen Abfällen, Sondermüll und/oder landwirt­ schaftlichen Rohstoffen wie Holz, Strohs, etc., wie unter P 36 42 102.0 beschrieben, könnte einen weltweiten Not­ stand bei der Entsorgung beheben, durch folgende Verfahrens­ schritte: Umkehrung des Gasstroms im Hochofen durch Herstel­ lung von Öffnungen im Ofenmantel in zwei verschiedenen Höhen: der unteren Schmelzzone (etwa in Höhe des Kohlensacks) sowie der oberen Hälfte des Schachtes und Einbau von neuen Wind­ formen mit Düsenstock und Blasformen (gekühlt oder ungekühlt) und einer dazugehörigen Ringleitung. Umstellung der alten Windformen zu Gasabzügen und ggf. Anschluß der Ableitung der Ringleitungen an die/den Winderhitzer und Verschließen der oberen Dichtgasleitungen des Hochofens. The function of a blast furnace is known to every specialist, so that it no longer needs to be described. It who many blast furnaces will be shut down in the foreseeable future because there is a high overcapacity. The order armor of these units and their further use as Melting gasifier for the gasification of briquetted household waste, household-like waste, hazardous waste and / or farmer commodities such as wood, straw, etc., such as under P 36 42 102.0 could be a global need corrected during disposal by the following procedure Steps: reversal of the gas flow in the blast furnace by manufacturers Openings in the furnace jacket at two different heights: the lower melting zone (approximately at the level of the coal sack) and the top half of the shaft and installation of new wind molding with a nozzle block and blow molds (cooled or uncooled) and an associated ring line. Conversion of the old Wind forms for gas fume cupboards and, if necessary, connecting the derivation of the Ring lines to the hot water heater and closing the upper sealing gas lines of the blast furnace.  

Es wurde gefunden, daß auf diese einfache Weise, ein be­ stehender Hochofen zu einem Schmelzvergaser umgerüstet werden kann. Am wichtigsten ist dabei, daß fast die ge­ samte Infrastruktur des Hochofens Verwendung findet. Auch die Art des Gases, welches erzeugt werden soll, ist steuer­ bar, denn es wird nicht immer teueres Synthesegas (CO + H2) gebraucht, das ja nur mit reinem Sauerstoff erzeugt werden kann. Für die Verbrennung z. B. im Kraftwerk ist auch ein Schwachgas ausreichend, das mit Luft erzeugt werden und die ggf. mit Sauerstoff angereichert sein kann und im bestehenden Winderhitzer des Hochofens erhitzt wird, wobei der Winderhitzer die fühlbare Wärme des erzeugten Brenn- oder Synthesegases aus dem umgerüsteten Hochofen, welches ja stark überhitzt ist, aufgeheizt wird.It has been found that an existing blast furnace can be converted to a melter gasifier in this simple manner. The most important thing is that almost the entire infrastructure of the blast furnace is used. The type of gas that is to be generated is also taxable, because expensive synthesis gas (CO + H 2 ) is not always used, which can only be generated with pure oxygen. For the combustion z. B. in the power plant, a lean gas is also sufficient, which can be generated with air and which may be enriched with oxygen and is heated in the existing blast heater of the blast furnace, the blast heater heating the sensible heat of the combustion or synthesis gas generated from the converted blast furnace, which is very overheated, is heated up.

Claims (4)

1. Verfahren zur Umrüstung eines Hochofens zum Schmelz­ vergaser und Verwendung von Luft als Vergasungsmittel gekennzeichnet durch folgende Verfahrens­ schritte: Umkehrung des Gasstroms im Hochofen durch
  • - Herstellung von Öffnungen im Ofenteil in zwei ver­ schiedenen Höhen: der unteren Schmelzzone (etwa in Höhe des Kohlensacks), sowie der oberen Hälfte des Schachtes und Einbau von neuen Windformen mit Düsen­ stock und Blasformen (gekühlt oder ungekühlt) und einer dazugehörigen Ringleitung,
  • - Umstellung der alten Windformen zu Gasabzügen und ggf. Anschluß der Ableitung der Ringleitung an die/den Winderhitzer,
  • - Verschließen der oberen Dichtgasleitungen des Hochofens.
1. Method for converting a blast furnace to the melting gasifier and use of air as a gasifying agent characterized by the following process steps: reversal of the gas flow in the blast furnace
  • - Manufacture of openings in the furnace part at two different heights: the lower melting zone (roughly at the level of the coal sack), as well as the upper half of the shaft and installation of new wind molds with nozzle stock and blow molds (cooled or uncooled) and an associated ring line,
  • - conversion of the old wind forms to gas vents and, if necessary, connection of the discharge of the ring line to the hot water heater (s),
  • - Close the upper sealing gas lines of the blast furnace.
2. Verfahren nach Anspruch 1, dadurch gekennzeich­ net, daß als Vergasungsmittel Luft oder mit Sauerstoff angereicherte Luft verwandt wird. 2. The method according to claim 1, characterized in net that air as a gasifier or with oxygen enriched air is used.   3. Verfahren nach Anspruch 1, dadurch gekennzeich­ net, daß als Vergasungsmittel Rauchgase oder andere CO2 reiche Abgase, welche mit Sauerstoff angereichert sind, verwandt werden.3. The method according to claim 1, characterized in that flue gases or other CO 2- rich exhaust gases, which are enriched with oxygen, are used as the gasifying agent. 4. Verfahren nach Anspruch 1, dadurch gekennzeich­ net, daß der Umbau auch am heißen Ofen vorgenommen wer­ den kann.4. The method according to claim 1, characterized in net that the conversion is also carried out on the hot oven that can.
DE19873720648 1986-03-12 1987-06-23 Method for converting a blast furnace into a smelting gasifier, and use of air as a gasificant Ceased DE3720648A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19873720648 DE3720648A1 (en) 1986-03-12 1987-06-23 Method for converting a blast furnace into a smelting gasifier, and use of air as a gasificant

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3608150A DE3608150C1 (en) 1986-03-12 1986-03-12 Process and device for reducing melt gasification
DE19873720648 DE3720648A1 (en) 1986-03-12 1987-06-23 Method for converting a blast furnace into a smelting gasifier, and use of air as a gasificant

Publications (1)

Publication Number Publication Date
DE3720648A1 true DE3720648A1 (en) 1989-01-05

Family

ID=25841861

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19873720648 Ceased DE3720648A1 (en) 1986-03-12 1987-06-23 Method for converting a blast furnace into a smelting gasifier, and use of air as a gasificant

Country Status (1)

Country Link
DE (1) DE3720648A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4313630A1 (en) * 1993-04-26 1994-10-27 Kloeckner Stahl Gmbh Process for producing metal from metal ores
DE4317968A1 (en) * 1993-05-28 1994-12-08 Voest Alpine Ind Anlagen Process for the production of molten pig iron from lumpy iron ore
NL1000838C2 (en) * 1995-07-19 1997-01-21 Hoogovens Staal Bv Method and device for producing pig iron by melt reduction.

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4313630A1 (en) * 1993-04-26 1994-10-27 Kloeckner Stahl Gmbh Process for producing metal from metal ores
DE4317968A1 (en) * 1993-05-28 1994-12-08 Voest Alpine Ind Anlagen Process for the production of molten pig iron from lumpy iron ore
NL1000838C2 (en) * 1995-07-19 1997-01-21 Hoogovens Staal Bv Method and device for producing pig iron by melt reduction.
EP0754766A1 (en) * 1995-07-19 1997-01-22 Hoogovens Staal B.V. Method and apparatus for producing pig iron by smelting reduction and method of obtaining such a plant
US5827473A (en) * 1995-07-19 1998-10-27 Hoogovens Staal B.V. Method and apparatus for producing pig iron by smelting reduction and method of obtaining such a plant
US5989307A (en) * 1995-07-19 1999-11-23 Hoogovens Staal B.V. Method and apparatus for producing pig iron by smelting reduction and method of obtaining such a plant

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