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DE580142C - Furnace for the direct production of steel from ores - Google Patents

Furnace for the direct production of steel from ores

Info

Publication number
DE580142C
DE580142C DEH130722D DEH0130722D DE580142C DE 580142 C DE580142 C DE 580142C DE H130722 D DEH130722 D DE H130722D DE H0130722 D DEH0130722 D DE H0130722D DE 580142 C DE580142 C DE 580142C
Authority
DE
Germany
Prior art keywords
furnace
ores
hearth furnace
rotary kiln
steel
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.)
Expired
Application number
DEH130722D
Other languages
German (de)
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.)
HUETTENBETR
HOESCH KOELN NEUESSEN AG
Original Assignee
HUETTENBETR
HOESCH KOELN NEUESSEN AG
Publication date
Priority to DEH130722D priority Critical patent/DE580142C/en
Application granted granted Critical
Publication of DE580142C publication Critical patent/DE580142C/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21BMANUFACTURE OF IRON OR STEEL
    • C21B13/00Making spongy iron or liquid steel, by direct processes
    • C21B13/14Multi-stage processes processes carried out in different vessels or furnaces

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)

Description

Ofenanlage zur unmittelbaren Erzeugung von Stahl aus Erzen Es ist bekannt, daß die Abgase von metallurgischen Ofen, in welchen durch den im Eisensumpf enthaltenen Kohlenstoff Erze reduziert werden und der Kohlenstoff, getragen durch ein ßlasmittel, ergänzt wird, noch eine hohe Reduktionskraft besitzen. Es ist auch bekannt, diese Gase durch einen Drehofen zu leiten, in dem Erze und Kalk vorgewärmt und reduziert werden. Erz und Kalk fallen dabei aus dem Drehofen unmittelbar auf den Schmelzherd, und zwar in dem durch die Betriebsweise des Drehofens bedingten Umfang.Furnace plant for the direct production of steel from ores It is known that the exhaust gases from metallurgical furnace, in which by the in the iron sump contained carbon ores are reduced and the carbon carried by an ßlasmittel, supplemented, still have a high reducing power. It is also known to pass these gases through a rotary kiln in which ores and lime are preheated and be reduced. Ore and lime fall directly from the rotary kiln the melting hearth, namely in the one caused by the operating mode of the rotary kiln Scope.

Bei der Durchführung solcher direkter Stahlerzeugungsverfahren aus Erzen hat sich nun gezeigt, daß es notwendig ist, die Erze in ganz gewissen Zeitpunkten und ganz bestimmten Abständen aufzugeben und -möglichst gleichmäßig auf das Bad zu verteilen.When performing such direct steelmaking processes Ores has now shown that it is necessary to use the ores at very specific times and at very specific intervals and as evenly as possible in the bathroom to distribute.

Erfindungsgemäß wird daher zwischen Drehofen und dem angeschlossenen Weiterverarbeitungsofen, z. B. Herdofen, ein Behälter eingeschaltet, in dem das vorreduzierte Erz mit dem vorgewärmten Kalk vor dem Einsetzen in den Herdofen angesammelt wird. Aus diesem Behälter kann alsdann, den Betriebserfordernissen des Herdofens entsprechend, die Beschickung in kleineren Einzelmengen entnommen und in dem Herdofen durch die verschiedenen Türen gleichmäßig über-.den ganzen Herd verteilt werden. ' In der beiliegenden Zeichnung ist ein Ausführungsbeispiel des Behälters in Verbindung mit Drehofen und Herdofen dargestellt. Abb. I zeigt den Längsschnitt, Abb. a den Querschnitt durch die Betriebsanlage und Abb. 3 die Ansicht der Einsatzseite des Herdofens mit den Einsatztüren.According to the invention, therefore, between the rotary kiln and the connected Processing furnace, e.g. B. stove, a container switched on in which the Pre-reduced ore is accumulated with the preheated lime prior to placing in the hearth furnace will. This container can then be used to meet the operational requirements of the hearth furnace accordingly, the feed is removed in smaller individual quantities and placed in the hearth furnace be evenly distributed over the entire stove through the various doors. In the accompanying drawing, an embodiment of the container is in connection shown with rotary kiln and hearth furnace. Fig. I shows the longitudinal section, Fig. A the Cross-section through the plant and Fig. 3 the view of the insert side of the Hearth furnace with the insert doors.

Die Erze nebst Zuschlägen werden vermittels einer Aufgabevorrichtung I in den Drehrohrofen a aufgegeben. Von diesem Drehrohrofen gelangen die durch die Abgase des Herdofens 3 vorgewärmten und vorreduzierfen Erze samt Kalk in den Behälter 4. Der Behälter .4 ist mit dem Herdofen 3, gegebenenfalls unter Verwendung von wasserdurchflossenen Kühlrahmen, derart verbunden, daß die Abgase des Herdofens durch den Behälter 4 in den Drehofen a gelangen. Am Fußende des Behälters 4 befindet sich ein wassergekühlter Schieber 5, der dazu dient, die Beschickung für den Herdofen in gewünschter Weise zu entnehmen. Die Beschickung gelangt durch den wassergekühlten Schieber 5 in die Chargiermulde 6. Die Mulde 6 wird mit einer Chargiermaschine je nach Belieben in eine der drei Türen eingefahren und der Inhalt auf den Herd entleert.The ores and aggregates are fed into a feeding device I given up in the rotary kiln a. From this rotary kiln the pass through the Exhaust gases from the hearth furnace 3 preheated and prereduced ores including lime in the container 4. The container .4 is with the hearth furnace 3, if necessary using water flowing through it Cooling frame, connected in such a way that the exhaust gases from the hearth furnace through the container 4 get into the rotary kiln a. At the foot of the container 4 there is a water-cooled one Slide 5, which is used to load the hearth furnace in the desired manner refer to. The feed passes through the water-cooled slide 5 into the Charging trough 6. The trough 6 is in one of the three doors retracted and the contents emptied onto the stove.

Claims (1)

PATENTANSPRUCH: Ofenanlage zur unmittelbaren Erzeugung von Stahl aus Erzen, bestehend aus einem Herdofen und einem Drehrohrofen, welcher mit dem Herdofen in Verbindung steht und von dessen Abgasen zur Vorwärmung und Vorreduktion der Beschikkung durchstrichen wird. dadurch gekennzeichnet, daß zwischen dem Herdofen (3) und dem Drehrohrofen (a) ein mit einer verschließbaren Austragsöffnung versehener Erzbehälter (4) eingeschaltet ist.PATENT CLAIM: Furnace for the direct production of steel from Ores, consisting of a hearth furnace and a rotary kiln, which is connected to the hearth furnace is in connection and of its exhaust gases for preheating and prereduction of the charge is crossed out. characterized in that between the hearth furnace (3) and the Rotary kiln (a) an ore container provided with a closable discharge opening (4) is turned on.
DEH130722D Furnace for the direct production of steel from ores Expired DE580142C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEH130722D DE580142C (en) Furnace for the direct production of steel from ores

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH130722D DE580142C (en) Furnace for the direct production of steel from ores

Publications (1)

Publication Number Publication Date
DE580142C true DE580142C (en) 1933-07-06

Family

ID=7176177

Family Applications (1)

Application Number Title Priority Date Filing Date
DEH130722D Expired DE580142C (en) Furnace for the direct production of steel from ores

Country Status (1)

Country Link
DE (1) DE580142C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2750277A (en) * 1951-05-14 1956-06-12 Armco Steel Corp Process and apparatus for reducing and smelting iron
DE1175707B (en) * 1959-08-29 1964-08-13 Demag Elektrometallurgie Gmbh Process for direct steelmaking
DE1226124B (en) * 1959-08-20 1966-10-06 Beteiligungs & Patentverw Gmbh Process for the reduction of fine-grained oxidic iron carriers in a rotary kiln
DE1262308B (en) * 1961-03-15 1968-03-07 Kloeckner Humboldt Dentz Ag Process for the direct reduction of iron ores

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2750277A (en) * 1951-05-14 1956-06-12 Armco Steel Corp Process and apparatus for reducing and smelting iron
DE1226124B (en) * 1959-08-20 1966-10-06 Beteiligungs & Patentverw Gmbh Process for the reduction of fine-grained oxidic iron carriers in a rotary kiln
DE1175707B (en) * 1959-08-29 1964-08-13 Demag Elektrometallurgie Gmbh Process for direct steelmaking
DE1262308B (en) * 1961-03-15 1968-03-07 Kloeckner Humboldt Dentz Ag Process for the direct reduction of iron ores

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