GB1432635A - Melting and refining of glass and like thermoplastic materials - Google Patents
Melting and refining of glass and like thermoplastic materialsInfo
- Publication number
- GB1432635A GB1432635A GB3931273A GB3931273A GB1432635A GB 1432635 A GB1432635 A GB 1432635A GB 3931273 A GB3931273 A GB 3931273A GB 3931273 A GB3931273 A GB 3931273A GB 1432635 A GB1432635 A GB 1432635A
- Authority
- GB
- United Kingdom
- Prior art keywords
- melting
- glass
- molten glass
- gas
- batch
- 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
- 230000008018 melting Effects 0.000 title abstract 6
- 238000002844 melting Methods 0.000 title abstract 6
- 238000007670 refining Methods 0.000 title abstract 4
- 239000011521 glass Substances 0.000 title abstract 3
- 239000012815 thermoplastic material Substances 0.000 title 1
- 239000007789 gas Substances 0.000 abstract 5
- 239000006060 molten glass Substances 0.000 abstract 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract 2
- 230000002093 peripheral effect Effects 0.000 abstract 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 1
- 239000003570 air Substances 0.000 abstract 1
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract 1
- 239000001569 carbon dioxide Substances 0.000 abstract 1
- 239000006066 glass batch Substances 0.000 abstract 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 abstract 1
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
- C03B5/26—Outlets, e.g. drains, siphons; Overflows, e.g. for supplying the float tank, tweels
- C03B5/262—Drains, i.e. means to dump glass melt or remove unwanted materials
-
- 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
- C03B5/0275—Shaft furnaces
-
- 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
- C03B5/20—Bridges, shoes, throats, or other devices for withholding dirt, foam, or batch
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Glass Melting And Manufacturing (AREA)
- Joining Of Glass To Other Materials (AREA)
Abstract
1432635 Melting glass batch CORNING GLASS WORKS 20 Aug 1973 [28 Aug 1972] 39312/73 Heading C1M [Also in Division F4] In the melting and refining of glass in which batch 18 is introduced into a melting tank (10) holding molten glass 20, so as to cover substantially completely the upper part thereof; heat energy as from electrodes 34 is applied about the periphery of the tank 10 at a plurality of heights to melt the batch in an upper melting zone and to refine the molten glass in a lower refining zone and in which the refined melt is withdrawn below the refining zone, gas under pressure is continuously introduced in the peripheral area of the melting zone so as to form a plurality of bubbles 58 or continuous streams from the gas and the bubbles 58 or streams are directed upwardly to form passages 62 through the molten glass to prevent bridging of the batch 18 within the tank. As shown, gas is. introduced through gas supply tubes 48 equally spaced round and extending through the sidewall 14a and/or 14b of the tank 10 into the peripheral area of the molten glass 20, wall segments 14a being electrode-containing and segments 14b being non-powered. Each tube 48 is provided with a flow meter (54) and control valve (56) and preferably all tubes 48 are connected to a single distributor pipe. The gas, which may be air, nitrogen or carbon dioxide, is at slightly greater pressure than the pressure of the molten glass at the end 52 of each tube 48. Specifications 1,260,225 and 1,353,070 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US28399472A | 1972-08-28 | 1972-08-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1432635A true GB1432635A (en) | 1976-04-22 |
Family
ID=23088444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3931273A Expired GB1432635A (en) | 1972-08-28 | 1973-08-20 | Melting and refining of glass and like thermoplastic materials |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS4960313A (en) |
| BE (1) | BE803595A (en) |
| DE (1) | DE2341943A1 (en) |
| FR (1) | FR2198618A5 (en) |
| GB (1) | GB1432635A (en) |
| NL (1) | NL7311753A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4149022A (en) * | 1978-05-01 | 1979-04-10 | General Electric Company | Power control system for electrically melting glass |
| US4161617A (en) * | 1978-05-01 | 1979-07-17 | General Electric Company | Method and apparatus for electrically melting glass |
-
1973
- 1973-08-14 BE BE134564A patent/BE803595A/en unknown
- 1973-08-20 GB GB3931273A patent/GB1432635A/en not_active Expired
- 1973-08-20 DE DE19732341943 patent/DE2341943A1/en active Pending
- 1973-08-23 JP JP9482773A patent/JPS4960313A/ja active Pending
- 1973-08-27 NL NL7311753A patent/NL7311753A/xx not_active Application Discontinuation
- 1973-08-27 FR FR7330921A patent/FR2198618A5/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL7311753A (en) | 1974-03-04 |
| FR2198618A5 (en) | 1974-03-29 |
| BE803595A (en) | 1973-12-03 |
| JPS4960313A (en) | 1974-06-12 |
| DE2341943A1 (en) | 1974-03-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLE | Entries relating assignments, transmissions, licences in the register of patents | ||
| PCNP | Patent ceased through non-payment of renewal fee |