DE431326C - Process and furnace for the extraction of pig iron - Google Patents
Process and furnace for the extraction of pig ironInfo
- Publication number
- DE431326C DE431326C DEA39960D DEA0039960D DE431326C DE 431326 C DE431326 C DE 431326C DE A39960 D DEA39960 D DE A39960D DE A0039960 D DEA0039960 D DE A0039960D DE 431326 C DE431326 C DE 431326C
- Authority
- DE
- Germany
- Prior art keywords
- shaft
- fuel
- ore
- furnace
- blast furnace
- 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
Links
Classifications
-
- 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
- C21B5/008—Composition or distribution of the charge
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Description
Verfahren und Hochofen zur Gewinnung von Roheisen. Die Erfindung betrifft ein '\-erfahren zur Gewinnung von Roheisen im Hochofen, bei dein in bekannter Weise die Erze - -chebenenfalls mit den Zuschlägen -"einerseits und der Brennstoff anderseits in getrennten Schächten durch den Ofen geführt werden.Process and blast furnace for the extraction of pig iron. The invention relates to a '\ -experience for the extraction of pig iron in the blast furnace, with your in a known way the ores - also with the surcharges - "on the one hand and the fuel on the other hand be fed through the furnace in separate shafts.
Gemäß der Erfindung wird in den unteren hoch erhitzten Teil des Brennstoffschachtes Wasserdampf eingeführt und das dem oberen Teil des Brennstoffschachtes entströmende Gasgemisch dein unteren Teil des Erzschachtes zugeführt.According to the invention, in the lower, highly heated part of the fuel shaft Water vapor introduced and flowing out of the upper part of the fuel shaft Gas mixture fed to the lower part of the ore shaft.
Die Wasserdanipfmiführung bewirkt bei gleichzeitiger Wassergasbildung eine Teiuperaturerniedrigung im Brennstoffschacht, wodurch die Zersetzung der darin gebildeten hohlenwasserstoffe und die Abscheidung von Kohlenstoff aus denselben verhindert wird.The water drainage leads to the formation of water gas at the same time a lowering of the temperature in the fuel shaft, causing the decomposition of the fuel in it formed hydrocarbons and the deposition of carbon from them is prevented.
Gleichzeitig mit dem Wasserdampf kann ein Teil der aus dem Erzschacht abziehenden Gase in den Brennstoffschacht eingeführt werden.At the same time as the water vapor, some of the from the ore shaft can exhausting gases are introduced into the fuel shaft.
Der der Ausführung des vorliegenden N-erfahrens dienende Ofen ist in den Abb. i bis z in einem Beispiel veranschaulicht.The furnace used to carry out the present N process is illustrated in an example in Figs. i to z.
In der Mittelachse des äußeren Schachtü:auerwerks er steht der engere
Schachtb, so daf.i zwischen den beiden Scbachtmänteln ein
Der Hochofen kann auch statt eines mittleren Verkokungs- und eines ringförmig dazu angeordneten Reduktionsraumes auch je einen oder mehrere voneinander unabhängige Verkokungs- und Reduktionsräume erhalten. Der Brennstoffraum kann init mechanischen Fördereinrichtungen ausgestattet sein, '/.. B. nnt drehbaren Schaufeln, wobei der Brennstoff laufend mechanisch von einer Stufe nach der nächsttieferen im Gegenstrome zu den aufsteigenden Gasen geschaufelt wird.The blast furnace can also be used instead of a middle coking and a reduction space arranged in a ring to this end, also one or more of each other independent coking and reduction rooms received. The fuel space can init mechanical conveyors, '/ .. B. nnt rotatable blades, the fuel running mechanically from one level to the next lower is shoveled in countercurrent to the rising gases.
Iin Schachtraum IV rückt der Brennstoff allmählich abwärts. wobei er durch die Wärme der aufsteigenden Gase verkokt wird. Das Erz mit seinen Zuschlägen, beide in angemessen zerkleinertem Zustande, geht in dein Reduktionsraum III gleichfalls allinählich abwärts, wobei es Je nach seiner Eigenart ganz oder griißtenteils reduziert wird. Um die Erze möglichst lange in der Reduktionszone zurückzuhalten und finit den aufsteigenden Gasen in eine ständige und möglichst innige Berührung zu bringen, ist der Reduktionsraiini mit radial gerichteten, einander übergreifenden und mit Öffnungen z versehenen Flächen h (Abb. 2 und 3) ausgestattet.The fuel gradually descends in shaft space IV. whereby it is coked by the warmth of the rising gases. The ore with its aggregates, both in an appropriately comminuted condition, also goes into reduction room III gradually downwards, whereby depending on its peculiarity it is wholly or largely reduced will. To keep the ores in the reduction zone for as long as possible and finite to bring the rising gases into constant and as intimate contact as possible, is the reduction strategy with radially directed, overlapping and with Openings z provided areas h (Fig. 2 and 3) equipped.
Das reduzierte Erz gelangt am unteren Ende des Erzschachtes durch die im Boden k angebrachten Üffnungen 1 hindurch in den Ofenraum II und wird hier finit dem aus deni Raum IV niedersinkenden verkokten Brennstoff zusammengeführt. Hier findet alsdann, soweit noch erforderlich, die Endreduktion der Erze und das \ iederschnielzen von Eisen und Schlacke sowie die hohlurig des Eisens statt. Im Gestell sind in üblicher @Veise das Schlackenloch au, das Abstichloch 11 und die Windformen o angeordnet. In den unteren, oberhalb r roo° C crliitzteii Teil des Brennstoffraumes IV wird finit Hilfe von radial gerichteten Leitungen p Dampf eingeblasen. Der Dampf zieht mit den aus dem Raum 1I aufsteigenden Gasen innerhalb des Raumes IV aufwärts und erzeugt beim Zusammentreffen finit dein glühenden Brennstoff Wassergas. Statt oder gleichzeitig finit dein Dampf kann auch ein Teil der aus dein Erzschacht oben durch die Öffnungen q abziehenden Gase unten in den Brennstoffschacht eingeführt werden.The reduced ore arrives at the lower end of the ore shaft through the openings 1 made in the base k into the furnace space II and is here finitely brought together with the coked fuel that sinks from the space IV. Here then, if still necessary, the final reduction of the ores and the cutting down of iron and slag as well as the hollowing of the iron take place. The slag hole au, the tapping hole 11 and the tuyere o are arranged in the usual manner in the frame. Steam is finitely blown into the lower part of the fuel chamber IV, above r roo ° C, with the help of radially directed lines p. The steam moves upwards with the gases rising from the room 1I within the room IV and finitely produces your glowing fuel water gas when they meet. Instead of or at the same time finite steam, some of the gases withdrawn from the ore shaft at the top through the openings q can also be introduced into the fuel shaft at the bottom.
Die aus dein Sclinielzrauni kommenden Gase, von denen ein Teil zur Reduktion des Erzes herangezogen wird, besitzen eine Teinp.eratur von r4- bis 1500' C, die für die Erze ztt hoch ist, da sie notwendigerweise zur Schmelzung oder Sinterung der Erze ini Reduktionsraum führen müßte. Es ist daher notwendig, die Temperatur herabzusetzen: und zu diesem Zweck zieht man gekühltes, von Nebenerzeugnissen befreites Gas aus dein V erluil:ungsrauin heran.The gases coming from the Sclinielzrauni, some of which are used to reduce the ore, have a temperature of between 4 and 1500 ° C, which is high for the ores, as they are necessary for the melting or sintering of the ores in the reduction room would have to lead. It is therefore necessary to reduce the temperature: and for this purpose one draws chilled, by-product freed gas from the valve: un-rough.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA39960D DE431326C (en) | 1923-05-09 | 1923-05-09 | Process and furnace for the extraction of pig iron |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA39960D DE431326C (en) | 1923-05-09 | 1923-05-09 | Process and furnace for the extraction of pig iron |
Publications (1)
Publication Number | Publication Date |
---|---|
DE431326C true DE431326C (en) | 1926-07-03 |
Family
ID=6931685
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEA39960D Expired DE431326C (en) | 1923-05-09 | 1923-05-09 | Process and furnace for the extraction of pig iron |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE431326C (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE952819C (en) * | 1949-03-15 | 1956-11-22 | E H Dr Rer Techn H C Heinrich | Process for gasifying coal in a shaft furnace while extracting iron |
DE1047446B (en) * | 1951-02-08 | 1958-12-24 | Texaco Development Corp | Process for reducing reducible metal oxides |
DE1122564B (en) * | 1953-08-18 | 1962-01-25 | Werner Wenzel Dr Ing | Process for iron extraction from suspended, dusty or fine-grained iron ores by means of fuels in a fine degree of distribution above the melting point of the non-gaseous reaction products |
DE1244819B (en) * | 1954-01-27 | 1967-07-20 | Roechlingsche Eisen & Stahl | Process for producing pig iron |
WO1991002822A1 (en) * | 1989-08-22 | 1991-03-07 | Gottfried Hochegger | Novel blast furnace process with economical iron and stell production |
-
1923
- 1923-05-09 DE DEA39960D patent/DE431326C/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE952819C (en) * | 1949-03-15 | 1956-11-22 | E H Dr Rer Techn H C Heinrich | Process for gasifying coal in a shaft furnace while extracting iron |
DE1047446B (en) * | 1951-02-08 | 1958-12-24 | Texaco Development Corp | Process for reducing reducible metal oxides |
DE1122564B (en) * | 1953-08-18 | 1962-01-25 | Werner Wenzel Dr Ing | Process for iron extraction from suspended, dusty or fine-grained iron ores by means of fuels in a fine degree of distribution above the melting point of the non-gaseous reaction products |
DE1244819B (en) * | 1954-01-27 | 1967-07-20 | Roechlingsche Eisen & Stahl | Process for producing pig iron |
WO1991002822A1 (en) * | 1989-08-22 | 1991-03-07 | Gottfried Hochegger | Novel blast furnace process with economical iron and stell production |
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