DE205884C

DE205884C -

Info

Publication number: DE205884C
Application number: DENDAT205884D
Authority: DE

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

PATENTSCHRIFTPATENT LETTERING

Vt 205884-KLASSE 31«. GRUPPE Vt 205884 - CLASS 31 «. GROUP

LOUIS ROUSSEAU in ARGENTEUIL, Frankr.LOUIS ROUSSEAU in ARGENTEUIL, France.

und Schmelzraum.and melting room.

Patentiert im Deutschen Reiche vom l.Juni 1906 ab.Patented in the German Empire on June 1, 1906.

Die Erfindung bezweckt bei kippbarenThe invention aims at tiltable

Schmelzofen mit getrenntem Brennschacht und Schmelzraum eine bessere Flammenzuführung zu der Schmelzkammer mittels eigenartig geführter Flammenkanäle.Melting furnace with separate firing shaft and melting chamber a better flame supply to the melting chamber by means of peculiarly guided flame channels.

Es sind zwar bereits öfen bekannt, deren Flammenkanäle in die Schmelzkammer münden; diese dienten jedoch einerseits anderen Zwecken, andererseits war ihre Lage undFurnaces are already known whose flame channels open into the melting chamber; However, on the one hand these served other purposes, on the other hand their location was and

ιό Führung wesentlich anders als gemäß der Erfindung; während nämlich die bekanjiten Verbindungskanäle oder Düsen einerseits dazu dienen, der schon geschmolzenen Metallmasse einen Gasstrom zuzuführen, um eine chemische Wirkung auf das Metall auszuüben und andererseits die Kanäle oberhalb des Metallbades münden, besteht das Kennzeichen der Erfindung darin, daß die von dem Brennschacht in bekannter Weise getrennte Schmelzkammer an ihrem oberen Teil von einem Ringkanal umgeben ist, von dem aus außer den von ihm abzweigenden, oben auf das Metall mündenden öffnungen noch in Knieform nach abwärts gerichtete und die Kammerwandung durchdringende Zweigkanäle in den unteren Teil des Schmelzraumes münden. Es hat diese Ausbildung nicht nur den Vorteil, daß eine recht kräftige Außenbeheizung des Schmelzgutes, sondern auch eine Innenbeheizung der Schmelzkammer stattfindet. Diese letztere vollzieht sich in der Weise, daß die Heizgase zu Anfang des Schmelzvorganges, wo die einzelnen Stücke des Schmelzgutes noch freie Räume zwischen sich- lassen, durch die Hohlräume dringen; nimmt dagegen das Schmelzgut eine flüssige Form an, so werden 40 ιό leadership significantly different than according to the invention; Namely, while the well-known connecting channels or nozzles serve on the one hand to feed a gas stream to the already molten metal mass in order to exert a chemical effect on the metal and on the other hand the channels open above the metal bath, the characteristic of the invention is that the from the firing shaft in known Wise separate melting chamber is surrounded at its upper part by an annular channel, from which, in addition to the openings branching off from it, opening onto the metal at the top, branch channels that extend downward in knee shape and penetrate the chamber wall open into the lower part of the melting chamber. This design not only has the advantage that the melting material is heated quite vigorously from the outside, but also that the melting chamber is heated internally. The latter takes place in such a way that the heating gases penetrate through the cavities at the beginning of the melting process, where the individual pieces of the melting material still leave free spaces between them; on the other hand, if the melt material takes on a liquid form, 40

die dementsprechend unter Druck gesetzten Heizgase ebenfalls durch das Metallbad dringen und eine Art brodelnde Wirkung im Metallbade hervorbringen.the correspondingly pressurized heating gases also penetrate through the metal bath and produce a kind of seething effect in the metal bath.

Auf der Zeichnung ist eine Ausführungsform des Schmelzofens dargestellt, es zeigt:The drawing shows an embodiment of the melting furnace, it shows:

Fig. ι einen Längsschnitt des Schmelzofens, Fig.2 einen Schnitt nach Linie A-B der Fig. i,FIG. 1 shows a longitudinal section of the melting furnace, FIG. 2 shows a section along line AB of FIG.

Fig. 3 einen wagerechten Schnitt nach Linie C-D der Fig. i.3 shows a horizontal section along line CD in FIG.

Der Ofen besteht aus zwei Teilen 7 und 9. Der Teil 9 dient als Herd und erhält die Luft durch einen Zug 17, der sich an ein Rohr 17* anschließt, welches mit einer Regelungsklappe versehen ist, die mittels einer Handhabe 22 eingestellt werden kann.The oven consists of two parts 7 and 9. Part 9 serves as a stove and receives the air by a train 17, which is attached to a pipe 17 * is connected, which is provided with a control flap that is controlled by means of a handle 22 can be adjusted.

. Der Schmelzraum 7 in dem Mauerwerk 5 ist von einem Mantel 15 unter Zwischenlage einer die Wärme schlecht leitenden Schicht, beispielsweise aus Schlackenwolle, umschlossen. Das Mauerwerk trägt am oberen Ende einen Ringkanal 33, der mit den senkrechten Kanälen 34 verbunden ist. Letztere stehen mit dem Schmelzraum durch Kanäle 35 und 36 in Verbindung, welche die Kanäle 34 mit dem oberen und unteren Teil des Schmelzräumes verbinden. Diese Kanäle 35 und 36 verlaufen nicht radial, sondern etwa tangential zu dem zylindrischen Schacht.. The melting space 7 in the masonry 5 is of a jacket 15 with an intermediate layer a layer that does not conduct heat well, for example made of slag wool. The masonry has an annular channel 33 at the upper end, which is connected to the vertical channels 34 is connected. The latter are connected to the melting chamber through channels 35 and 36, which the channels 34 with the Connect the upper and lower part of the melting area. These channels 35 and 36 run not radially, but approximately tangentially to the cylindrical shaft.

Der Mantel 5^a aus feuerfesten Steinen begrenzt die Kanäle 34 und den Kanal 33 nach der Seite hin.The jacket 5 ^a made of refractory bricks delimits the channels 34 and the channel 33 to the side.

Die Teile 7 und 9 stehen untereinander durch die Kanäle 37 und 38 in Verbindung, welche in der Wand des Herdes 9 liegen, wie aus Fig. ι ersichtlich ist.The parts 7 and 9 are connected to one another through the channels 37 and 38, which lie in the wall of the hearth 9, as can be seen from FIG.

Claims

The melting chamber 7 is closed by a cover 39 which is provided with outlet openings for the combustion gases. The air entering under pressure passes through the channel 17 into the stove 9 Fuel and arrives with the flames of the hearth fire through the channels 37 and 38 to the annular channel 33, from where it enters the Channels 34 and enters the space 7 through the channels 35 and 36, where it is in the Space 7 located metal is heated.

So that the combustion gases emanating from the space 9 simultaneously pass through the channels 35 and 36 can enter the melting chamber 7, although the channels 35 are much deeper than the channels 36, both if necessary by regulation, such a passage cross-section is given that the combustion gases under the pressure of the compressed air flowing through pipe 17 into said Channels are driven into said channels with a speed corresponding to this pressure and thereby forced be, partly to coat the melt above, partly to penetrate below.

The air pressure required for combustion is so high that, even when the metal is molten, entering through the lower channels 35 Combustion gases stir up the melted layer in the same way as with the Bessemer pear; as well as in certain cases the gases entering through the upper channels 36. Because these channels do not run radially, but diagonally, they exert a whirling motion on the mass, so that the same metal particles are not always hit, but rather that each other evenly distribute the flames in the mass, resulting in even melting and causes strong heating of the metal.

If cast iron is treated in this furnace, it is possible in a known manner transform it into steel or wrought iron. To do this, you rotate it Handle 22 of the air valve 17 * so that you get an oxidizing flame, which the carbon of iron burns to the desired degree, depending on whether you want to make steel or wrought iron.

If you turn the furnace around its pegs to pour out the molten metal, so the metal (see the slope of the left channel 36 in Fig. 3) would be exposed to the hazard be to flow out through this channel rather than through the outlet port.

To avoid this Ubelstand, is present in the feed 5 ⁿ a small channel 49 is provided, as shown in FIG. It can be seen 3, whose outer end opens into the channel 36, so that when the inclination of the furnace, the metal, which flows through the channel 36 , is returned through the channel 40 into the furnace chamber 9.

Pa τ ε ν τ - A ν s ρ R υ c η:

Tiltable furnace for melting metals with separate firing shaft and Melting chamber, characterized in that the melting chamber, which is separated from the combustion shaft, is 70 ' chamber (7) is surrounded at its upper part by an annular channel (33), of which from in the furnace walls except for the nozzles (36) opening in a known manner above the melting material, still vertically downwardly directed nozzles (35) which penetrate the chamber cover open into the lower part of the melting chamber.

1 sheet of drawings.