CH239718A - Glass melting furnace. - Google Patents
Glass melting furnace.Info
- Publication number
- CH239718A CH239718A CH239718DA CH239718A CH 239718 A CH239718 A CH 239718A CH 239718D A CH239718D A CH 239718DA CH 239718 A CH239718 A CH 239718A
- Authority
- CH
- Switzerland
- Prior art keywords
- glass
- furnace
- melting furnace
- glass melting
- gas
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
- C03B5/235—Heating the glass
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/02—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in electric furnaces, e.g. by dielectric heating
- C03B5/027—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in electric furnaces, e.g. by dielectric heating by passing an electric current between electrodes immersed in the glass bath, i.e. by direct resistance heating
- C03B5/03—Tank furnaces
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Description
Glasschmelzofen. Neben ,den mit Generatorgas beheizten Glasschmelzöfen haben bek .anntlieh in den letzten Jahren auch elektrisch beheizte Ofen in der Glasindustrie Eingang gefunden.
Bei diesen elektrisch beheizten Ofen entsteht die Wärmeentwicklung in der Glasschmelze selbst, was .neben bedeutendem Vorteilen auch gewisse Nachteile zur Folge hat. Insbesondere wird- die Formgebungsarbeit der Cxlasge,o.-en- stände am Ofen wegen ungenügender Wärme im Luftraum oberhalb des Glasspiegels er schwert.
Ferner kann. es vorkommen, duss die von solchen Ofen, beanspruchte elektrische Leistung nicht während des. ganzen Jahres in voller Höhe ohne weiteres zur Verfügung steht.
Um nunmehr die erwähnten Nachteile des ausschliesslich mit einer elektrischen Hei zung ausgerüsteten Glasschmelzofens zu ver meiden, wird gemäss der Erfindung der Ofen sowohl mit einer elektrischen Heizung, als auch -mit einer Gasheizung versehen, die beide gleichzeitig zur Beheizung des Ofens dienen.
An Hand der Zeichnung sei ein Auefüh- rungsbeispiel der Erfindung näher erläutert, und zwar ist in der Figur in schematischer Weise ein Glasschmelzofen im Grundrissdar- gestellt. Der Ofen besteht im wesentlichen aus einer Schmelzkammer 1 und einer Ent nahmekammer 2, wobei,die in der Kammer 1 erzeugte Glasschmelze durch eine Offnung 3 zur zweiten Kammer 2 fliesst,
wo sie zwecks der gewünschten Formgebung über die Öff nungen 4 ,dem. Ofen: entnommen werden kann. Für die elektrische Beheizung des. Ofens ist eine Anzahl in den Seitenwänden ,der Schmelz kammer 1 unterhalb des Glasspiegels einge baute Elektroden 5 vorgesehen. Ausserdem sind noch an der Stirnwand der Schmelz kammer 1 beispielsweise zwei Brenner 6 an gebaut, die für die Beheizung des Ofens mit tels Generatorgas dienen.
Die aus dem Bren- ner 6 austretenden Wärmegase weiden nach Bestreichung der .Schmelze in der Kammer 1 durch eine Anzahl über dem Glasspiegel in der Trennwand zwischen den Kammern 1 und 9 sich befindlichen Öffnungen 7 zur Glas entnahmekammer 2 geleitet, wodurch die Luft in dieser .letzteren sowie über .dem Glas spiegel auf den gewünschten Wert erhitzt wird.
Die Einrichtungen für die Gasbeheizung sowie für die elektrische Beheizung werden am vorteilhaftesten so bemessen, dass der An teil des Gases. und der Elektrizität an die Ofenbeheizung in weiten Grenzen geändert werden kann, unter Umständen sogar bis zur ausschliesslichen Beheizung mit der einen oder andern Energiequelle. Auf diese Weise dient die Gasheizung nicht bloss dem Zweck, die Formgebungsarbeit zu verbessern, sondern kann auch im Notfall die ganze Beheizung des Ofens übernehmen.
Glass melting furnace. In addition to the glass melting furnaces heated with generator gas, electrically heated furnaces have also found their way into the glass industry in recent years.
In these electrically heated furnaces, the heat is generated in the glass melt itself, which in addition to significant advantages also has certain disadvantages. In particular, the shaping work of the glass or glass would be difficult because of insufficient heat in the air space above the glass level.
Furthermore can. It can happen that the electrical power required by such furnaces is not readily available in full throughout the year.
In order to avoid the aforementioned disadvantages of the glass melting furnace equipped exclusively with an electric heating system, according to the invention the furnace is provided with both an electric heater and a gas heater, both of which serve to heat the furnace at the same time.
An exemplary embodiment of the invention will be explained in more detail with reference to the drawing, namely a glass melting furnace is shown schematically in plan in the figure. The furnace consists essentially of a melting chamber 1 and a removal chamber 2, the glass melt generated in the chamber 1 flowing through an opening 3 to the second chamber 2,
where they for the purpose of the desired shape via the openings 4, the. Oven: can be removed. For the electrical heating of the furnace. A number of electrodes 5 built into the side walls, the melting chamber 1 below the glass mirror is provided. In addition, two burners 6, for example, are still built on the front wall of the melting chamber 1, which are used to heat the furnace with means of generator gas.
The heat gases exiting from the burner 6 are passed through a number of openings 7 located above the glass level in the partition between the chambers 1 and 9 to the glass removal chamber 2 after the melt has been smeared in the chamber 1, whereby the air in this is conducted. the latter as well as .dem glass mirror is heated to the desired value.
The facilities for gas heating as well as for electrical heating are most advantageously dimensioned so that the part of the gas. and the electricity to the furnace heating can be changed within wide limits, under certain circumstances even up to the sole heating with one or the other energy source. In this way, the gas heater not only serves the purpose of improving the shaping work, but can also take over the entire heating of the furnace in an emergency.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH239718T | 1943-08-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH239718A true CH239718A (en) | 1945-11-15 |
Family
ID=4461374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH239718D CH239718A (en) | 1943-08-14 | 1943-08-14 | Glass melting furnace. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH239718A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2523030A (en) * | 1948-10-30 | 1950-09-19 | Glass Fibers Inc | Electric glass furnace |
| US2658093A (en) * | 1948-08-17 | 1953-11-03 | Saint Gobain | Manufacture of glass |
-
1943
- 1943-08-14 CH CH239718D patent/CH239718A/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2658093A (en) * | 1948-08-17 | 1953-11-03 | Saint Gobain | Manufacture of glass |
| US2523030A (en) * | 1948-10-30 | 1950-09-19 | Glass Fibers Inc | Electric glass furnace |
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