DE650657C - Process for the operation of aluminum smelting furnaces - Google Patents

Process for the operation of aluminum smelting furnaces

Info

Publication number
DE650657C
DE650657C DED71311D DED0071311D DE650657C DE 650657 C DE650657 C DE 650657C DE D71311 D DED71311 D DE D71311D DE D0071311 D DED0071311 D DE D0071311D DE 650657 C DE650657 C DE 650657C
Authority
DE
Germany
Prior art keywords
smelting furnaces
aluminum smelting
generator gas
aluminum
hearth
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
DED71311D
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.)
KARL HERMANN DOENICKE
Original Assignee
KARL HERMANN DOENICKE
Publication date
Priority to DED71311D priority Critical patent/DE650657C/en
Application granted granted Critical
Publication of DE650657C publication Critical patent/DE650657C/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B21/00Obtaining aluminium
    • C22B21/0084Obtaining aluminium melting and handling molten aluminium

Landscapes

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

Description

Verfahren zum Betrieb von::Aluminiumschmelzöfen Den Gegenstand vorliegender Erfndung bildet eine Brenneranordnung von Metallschmelzöfen, insbesondere für öfen zum Schmelzen von Aluminium und anderen Leichtmetallen und deren Legierungen. Mit dieser Brenneranordnung ist man in der Lage, die Verbrennung des Gases im Ofen, also die Führung der Flamme stufen- oder kaskadenförmig zu gestalten. Insbesondere kann. man mit der entsprechenden Einstellung der zwei Brennerstufen die höchste Temperatur über der Vorschmelzbrücke erzielen und das dort befindliche Metall schmelzen, während andererseits über dem Metallbad eine sauerstofffreie Atmosphäre geschaffen und jede Überhitzung des geschmolzenen Metalls vermieden wird.Method of operating: aluminum smelting furnaces The subject matter of the present Invention forms a burner arrangement for metal melting furnaces, in particular for furnaces for melting aluminum and other light metals and their alloys. With With this burner arrangement one is able to start the combustion of the gas in the furnace, So to design the guidance of the flame in stages or cascades. In particular can. the highest with the corresponding setting of the two burner levels Reach temperature above the premelting bridge and melt the metal located there, while on the other hand an oxygen-free atmosphere is created above the metal bath and any overheating of the molten metal is avoided.

An sich sind Brenner.anordnungen mit zwei oder mehreren hintereinanderliegenden Luftzuführungsstellen bekannt, neu dagegen: ist es, derartige Brenneranordnuugen in der der Erfindung zugrunde liegenden Weise zum Betrieb von Aluminiumschmelzöfen u. dgl. zu benutzen.Burner arrangements are per se with two or more one behind the other Air supply points are known, but new: it is such burner arrangements in the manner underlying the invention for operating aluminum smelting furnaces and the like.

Die Zeichnung dient zur Erläuterung des Verfahrens nach der Erfindung. Dabei ist a der Generator, b das Metallbad und c die Vorschmelzbrücke. DurchdieÖffnungbeidgelan.gt das Heizgas aus dem Gaserzeuger über das Bad. Bei e wird die für das Gas erforderliche Verbrennungsluft zugeführt, wenn über dem Bad die höchste Temperatur gewünscht wird. Soll hingegen die höchste Temperatur auf der Schmelzbrücke c erreicht werden, so wird die Luftzufuhr bei e geschlossen und bei f um so mehr Luft zugesetzt. Die Verbrennungsluft wird durch ein Schleudergebläse g geliefert und in einem Luftvorwärmer des Ofens durch die abziehenden Rauchgase stark vorgewärmt. Die Regelung der Luft an den Brennern e und f erfolgt dabei durch Ventile oder Schieber lt und i.The drawing serves to explain the method according to the invention. Here a is the generator, b the metal bath and c the premelting bridge. The heating gas from the gas generator passes through the opening on both sides via the bath. At e, the combustion air required for the gas is supplied when the highest temperature above the bath is desired. If, on the other hand, the highest temperature is to be reached on the fusible link c, the air supply is closed at e and all the more air is added at f. The combustion air is supplied by a centrifugal fan g and is strongly preheated in an air preheater of the furnace by the evacuating flue gases. The air at the burners e and f is regulated by valves or slides lt and i.

Je nach der Einstellung dieser Ventile kann man über dem Bad oder auf der VorscUmelzbrücke mit oxydierender oder reduzierender Flamme arbeiten. Für viele Schmelzverfahren, insbesondere bei Leichtmetall und seinen Legierungen, ist das von größter Bedeutung. Man kann gewisse Metalle überhaupt nur bei reduzierender Flamme schmelzen, weil sonst der Abbrand so groß wird, daß ein wirtschaftlicher Betrieb überhaupt nicht mehr möglich ist.Depending on the setting of these valves, you can either over the bath or work on the pre-melting bridge with an oxidizing or reducing flame. For many melting processes, especially with light metals and their alloys that of the utmost importance. Certain metals can only be used with reducing ones Melt the flame, otherwise the burn-up will be so great that an economical one Operation is no longer possible at all.

Bei dem hohen Preis des Leichtmetalles und seiner Legierungen ist aber die Frage des Abbrandes von großer Bedeutung.Given the high price of light metal and its alloys but the question of burnup is of great importance.

Claims (1)

PATENTANSPRUCH: Verfahren zum Betrieb von AluminiumschmeIzöfen mit Generatorgas, dem an zwei oder mehreren hintereinanderliegenden Stellen vorgewärmte Verbrennungsluft in regelbarer Menge zugeführt wird, dadurch .gekennzeichnet, daß die Verbrennungsleistung des Generatorgases auf die mit Aluminium beschickte Schmelzbrücke vereinigt wird, und das im Herd befindliche geschmolzene Metall durch das über den-Herd hinwegstreichende Generatorgas unter einer sauerstofffreien Atmosphäre im flüssigen Zustand erhalten bleibt.PATENT CLAIM: Process for operating aluminum smelting furnaces with Generator gas that has been preheated in two or more consecutive locations Combustion air is supplied in a controllable amount, characterized in that the combustion power of the generator gas on the melting bridge charged with aluminum is combined, and the molten metal in the hearth through the over-the-hearth sweeping generator gas under an oxygen-free atmosphere in the liquid Condition is preserved.
DED71311D Process for the operation of aluminum smelting furnaces Expired DE650657C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DED71311D DE650657C (en) Process for the operation of aluminum smelting furnaces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED71311D DE650657C (en) Process for the operation of aluminum smelting furnaces

Publications (1)

Publication Number Publication Date
DE650657C true DE650657C (en) 1937-10-04

Family

ID=7060796

Family Applications (1)

Application Number Title Priority Date Filing Date
DED71311D Expired DE650657C (en) Process for the operation of aluminum smelting furnaces

Country Status (1)

Country Link
DE (1) DE650657C (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2783990A (en) * 1953-11-24 1957-03-05 Tripmacher Richard Tilting melting furnace
DE1145749B (en) * 1959-11-14 1963-03-21 Rekuperator K G Dr Ing Schack Melting furnace for scrap, ingots, etc. Like. And method for its operation
DE1263995B (en) * 1966-02-03 1968-03-21 Volkswagenwerk Ag Magnesium melting and charging system for die casting machines
FR2336649A1 (en) * 1975-12-22 1977-07-22 Alumax Inc MELTING OF ALUMINUM FRAGMENTS WITH HIGH THERMAL EFFICIENCY, WITH PREHEATING OF THE FRAGMENTS BY THE GAS EXHAUSTING THE MELTING ZONE
US4402491A (en) * 1982-07-28 1983-09-06 Paul Bergsoe & Sons A/S Apparatus for reclaiming lead and other metals

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2783990A (en) * 1953-11-24 1957-03-05 Tripmacher Richard Tilting melting furnace
DE1145749B (en) * 1959-11-14 1963-03-21 Rekuperator K G Dr Ing Schack Melting furnace for scrap, ingots, etc. Like. And method for its operation
DE1263995B (en) * 1966-02-03 1968-03-21 Volkswagenwerk Ag Magnesium melting and charging system for die casting machines
FR2336649A1 (en) * 1975-12-22 1977-07-22 Alumax Inc MELTING OF ALUMINUM FRAGMENTS WITH HIGH THERMAL EFFICIENCY, WITH PREHEATING OF THE FRAGMENTS BY THE GAS EXHAUSTING THE MELTING ZONE
US4402491A (en) * 1982-07-28 1983-09-06 Paul Bergsoe & Sons A/S Apparatus for reclaiming lead and other metals

Similar Documents

Publication Publication Date Title
DE650657C (en) Process for the operation of aluminum smelting furnaces
DE726778C (en) Process for exhaust gas heat recovery in shaft ovens, in particular cupolas, with an air heater arranged above the top
DE429666C (en) Process for melting down, preserving fluids and refining easily oxidizable metals
DE652447C (en) Process and melting bridge for operating flame ovens
DE606780C (en) Process for the uninterrupted step-by-step generation of hot wind for the operation of metallurgical ovens, e.g. B. blast furnaces
DE676804C (en) Process and shaft furnace for melting metals
DE740569C (en) Steel melting furnace with recuperator, in particular metal recuperator, and method for operating the furnace
DE562741C (en) Device for preheating the charge for electric furnaces
DE860989C (en) Process and device for soldering and annealing in protective gas for dental technology
DE10227055B4 (en) Method for joining components made of aluminum or an aluminum alloy
DE853627C (en) Melting process for ferrous and non-ferrous metals and induction melting furnace for practicing the process
DE357336C (en) Top oven for forge fire
AT64968B (en) Process and device for melting iron ores containing volatile metals or waste in the Siemens Martin furnace.
DE500823C (en) Furnace for the continuous bright annealing of metal objects in a gas atmosphere with exclusion of air without an insert pot
DE385351C (en) Process for heating flame and heat stoves using a dust furnace
DE443172C (en) Heating of crucibles with an annular cross-section
DE554364C (en) Process for heating coke ovens
DE734854C (en) Use of chrome-iron and chrome-nickel alloys for heating conductors
DE942830C (en) Device for self-carburizing of gas, in particular of coke oven gas, for metallurgical furnaces working with alternating flame direction and regenerative air heating, in particular Siemens-Martin furnaces
DE826593C (en) Process for melting iron and steel scrap
AT131576B (en) Process for the production of zinc oxide.
DE911771C (en) Automatic regulation for ovens with rooms with different temperatures
DE573563C (en) Process for heating molds and similar parts that come into contact with liquid metals
DE378697C (en) Melting furnace with two glow shafts
DE398077C (en) Swiveling oven with vertical shaft and horizontal gas-heated stove