DE398392C - Melting furnace with pulverized coal combustion - Google Patents
Melting furnace with pulverized coal combustionInfo
- Publication number
- DE398392C DE398392C DEV17683D DEV0017683D DE398392C DE 398392 C DE398392 C DE 398392C DE V17683 D DEV17683 D DE V17683D DE V0017683 D DEV0017683 D DE V0017683D DE 398392 C DE398392 C DE 398392C
- Authority
- DE
- Germany
- Prior art keywords
- furnace
- pulverized coal
- melting furnace
- coal combustion
- melting
- 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
- 238000002485 combustion reaction Methods 0.000 title claims description 8
- 230000008018 melting Effects 0.000 title description 8
- 238000002844 melting Methods 0.000 title description 8
- 239000003245 coal Substances 0.000 title description 3
- 238000003723 Smelting Methods 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 4
- 239000002817 coal dust Substances 0.000 claims description 3
- 238000010304 firing Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 244000144980 herd Species 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Classifications
-
- 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
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces
- F27B3/002—Siemens-Martin type furnaces
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Description
Schmelzofen mit Kohlenstaabfeuerung. Man hat schon früher erkannt, daß bei Anwendung der Kohlenstaubfeuerung zur Beheizung von SchmeIzöfen (Sierifens-Martin-Ofen) eine wesentliche Verbesserung und Vereinfachung dadurch erzielt wird, daß die Feuergase stets in gleichbleibender Flammenrichtung durch den Schmelzherd ziehen. Hierdurch wird einmal eine gleichmäßigere Temperatur über dem Schmelzbade als bei den öfen mit wechselnder Flammenrichtung erreicht, und außerdem kommen - alle Umschaltorgane oder Umleitungen der Gas- und-Luftführungen in Fortfall. Nach der Erfindung wird der Schmelzofen als Doppelschmelzofen gebaut, wobei die beiden Schmelzherde zu beiden Seiten der Kohlenstaubfeuerung liegen.Melting furnace with coal dust firing. It has already been recognized earlier that when using pulverized coal firing to heat smelting furnaces (Sierifens-Martin furnace), a significant improvement and simplification is achieved by the fact that the fire gases always pass through the furnace in a constant flame direction. This results in a more uniform temperature is again reached above the melting bath than in the furnaces with variable flame direction and also come - all the switching members or diversions of gas and air tours in Fort case. According to the invention, the melting furnace is built as a double melting furnace, with the two melting hearths on either side of the pulverized coal furnace.
je nach der Größe des Doppelofens und der in Frage kommenden Leistung können eine oder mehrere Staubverbrehnungskammern angeordnet sein, deren Gase sich von der Mitte aus nach beiden Richtungen über die Schmelzherde hin gleichmäßig verteilen.depending on the size of the double oven and the power in question can have one or more dust combustion chambers be arranged their gases spread out from the center in both directions over the melting hearth spread evenly.
Ein derartiger Ofen zeichnet sich besonders durch die sehr geringen Strahlungsverluste gegenüber anderen Öfen sowie durch große Leistung aus. Auch können unschwer große Öfen mit beiderseitiger und wechselseitiger Beheizung sowie Regenerator zu einem derartigen Ofen mit mittlerer Verbrennungskammer umgebaut werden.Such a furnace is particularly notable for its very small size Radiation losses compared to other ovens as well as high output. Also can Easy-to-use large ovens with double and alternating heating and a regenerator be converted into such a furnace with a central combustion chamber.
In der Abb. i der Zeichnung ist der Ofen im Längsschnitt, in Abb. 2 im Grundriß und in Abb. 3 im Querschnitt dargestellt.In Fig. 1 of the drawing, the furnace is shown in longitudinal section, in Fig. 2 in plan and in Fig. 3 in cross section.
al und a2 sind die beiden Schmelzräume, die gleichmäßig zu beiden Seiten der Staub-,erbrennungskammer b angeordnet sind; d sind die Brenner, welche das Staubluftgemisch senkrecht von oben in die Verbrennungskammer einführen, was den Vorteil bietet, daß die Verbrennungsrückstände sich unmittelbar am Boden der Kammer niederschlagen, um von dort nach einer oder nach beiden Seiten bei e abgezogen zu werden. Die Feuergase verteilen sich aus der Verbrennungskammer nach beiden Seiten gleichmäßig über die Schmelzherde und werden alsdann zweckmäßig zu beiderseitigen Rekuperatoren gl und g2 geführt, in welchen die Sekundärluft erwärmt und von wo diese durch Heißwindleitungen hl und h2 in die Kanäle i geleitet wird, um zur Verbrennung des Kohleristaubes zu dienen. kl und k2 sind die Beschickungsöffnungen der Herde, in' und M2 die Abstiche.al and a2 are the two melting chambers, which are arranged evenly on both sides of the dust, combustion chamber b; d are the burners, which introduce the dust air mixture vertically from above into the combustion chamber, which has the advantage that the combustion residues are deposited directly on the bottom of the chamber to be drawn off from there to one or both sides at e. The flue gases are distributed evenly from the combustion chamber to both sides over the smelting hearth and are then expediently led to recuperators gl and g2 on both sides, in which the secondary air is heated and from where it is passed through hot blast lines hl and h2 into channels i in order to be burned to serve the coal dust. kl and k2 are the feed openings of the herd, in 'and M2 the taps.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEV17683D DE398392C (en) | 1922-08-11 | 1922-08-11 | Melting furnace with pulverized coal combustion |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEV17683D DE398392C (en) | 1922-08-11 | 1922-08-11 | Melting furnace with pulverized coal combustion |
Publications (1)
Publication Number | Publication Date |
---|---|
DE398392C true DE398392C (en) | 1924-07-14 |
Family
ID=7576535
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEV17683D Expired DE398392C (en) | 1922-08-11 | 1922-08-11 | Melting furnace with pulverized coal combustion |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE398392C (en) |
-
1922
- 1922-08-11 DE DEV17683D patent/DE398392C/en not_active Expired
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