GB531880A - Improvements in electric melting furnaces intended particularly for the manufacture of glass - Google Patents
Improvements in electric melting furnaces intended particularly for the manufacture of glassInfo
- Publication number
- GB531880A GB531880A GB25249/39A GB2524939A GB531880A GB 531880 A GB531880 A GB 531880A GB 25249/39 A GB25249/39 A GB 25249/39A GB 2524939 A GB2524939 A GB 2524939A GB 531880 A GB531880 A GB 531880A
- Authority
- GB
- United Kingdom
- Prior art keywords
- glass
- melting
- electrodes
- fining
- zone
- 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
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Melting And Manufacturing (AREA)
- Furnace Details (AREA)
Abstract
531,880. Electric melting furnaces. SOC. ANON. DES MANUFACTURES DES GLACES ET PRODUITS CHIMIQUES DE ST. GOBAIN, CHAUNY, & CIREY. Sept. 7, 1939, No. 25249. Convention date, Sept. 17, 1938. [Class 30 (iii)] In a glass melting furnace in which the glass flow is from charging openings 2 to a discharge opening 3, electrodes 6, 6a extending across the glass flow form a hot zone close to the surface in the melting portion the width of which is from 75 to 125 per cent. longer than the width of the hot zone in the fining portion which is provided with electrodes 9, 9a. The partly formed glass is shown at 4, and 5 and 8 are the hot zones created at the melting and fining portions respectively. In a modification, the electrodes may be formed by a number of vertical elements. In Fig. 7, the melting portion is divided into two branches 10. 10a each with a charging opening 2 the glass streams flowing together at 11 and traversing the fining zone 8. The three electrodes may be connected to a three-phase supply, more energy being expended in the melting zone than in the fining portion. Specification 500,803 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR531880X | 1938-09-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB531880A true GB531880A (en) | 1941-01-13 |
Family
ID=8924202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB25249/39A Expired GB531880A (en) | 1938-09-17 | 1939-09-07 | Improvements in electric melting furnaces intended particularly for the manufacture of glass |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB531880A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111439914A (en) * | 2020-05-25 | 2020-07-24 | 中建材蚌埠玻璃工业设计研究院有限公司 | A porch formula widescrow melting furnace for electronic display glass production |
-
1939
- 1939-09-07 GB GB25249/39A patent/GB531880A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111439914A (en) * | 2020-05-25 | 2020-07-24 | 中建材蚌埠玻璃工业设计研究院有限公司 | A porch formula widescrow melting furnace for electronic display glass production |
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