CA2614867A1 - Glass melting apparatus and method - Google Patents
Glass melting apparatus and method Download PDFInfo
- Publication number
- CA2614867A1 CA2614867A1 CA002614867A CA2614867A CA2614867A1 CA 2614867 A1 CA2614867 A1 CA 2614867A1 CA 002614867 A CA002614867 A CA 002614867A CA 2614867 A CA2614867 A CA 2614867A CA 2614867 A1 CA2614867 A1 CA 2614867A1
- Authority
- CA
- Canada
- Prior art keywords
- glass
- conditioner
- melter
- molten glass
- forehearth
- 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.)
- Granted
Links
- 239000011521 glass Substances 0.000 title claims abstract 15
- 238000002844 melting Methods 0.000 title claims abstract 6
- 230000008018 melting Effects 0.000 title claims abstract 6
- 238000000034 method Methods 0.000 title claims 6
- 239000006060 molten glass Substances 0.000 claims abstract 18
- 238000010438 heat treatment Methods 0.000 claims abstract 6
- 239000003039 volatile agent Substances 0.000 claims abstract 5
- 238000001816 cooling Methods 0.000 claims abstract 2
- 230000003750 conditioning effect Effects 0.000 claims 10
- 239000000463 material Substances 0.000 claims 2
- 238000002425 crystallisation Methods 0.000 claims 1
- 230000008025 crystallization Effects 0.000 claims 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 230000009977 dual effect Effects 0.000 abstract 1
- 239000011152 fibreglass Substances 0.000 abstract 1
- 230000007246 mechanism Effects 0.000 abstract 1
Landscapes
- Furnace Details (AREA)
Abstract
A system for melting and delivering glass to a work area such as spinners for making fiberglass includes a melter with heaters so arranged that the "hot spot" in the molten glass is located away from the walls and corrosion sensitive parts so that the various elements of the melter wear out at substantially the same time. The system is further provided with a dual exhaust arrangement when the melter, conditioner and forehearth are located on the same floor of the plant, the first exhaust being at the juncture of the melter and conditioner, and the second being an alternating replacement for one of the heating/cooling orifices and mechanisms in the conditioner, so as to effectively limit the amount of corrosive volatiles reaching the forehearth.
Claims (8)
1. In the combination of a walled melter, a walled conditioning system having at least one heating element extending through an orifice in a wall thereof and a forehearth, said melter being connected in molten glass flow communication with said conditioning system through a discharge port located in a wall of said melter at a first end of said conditioning system and said opposite end of said conditioning system being connected in molten glass flow communication with said forehearth, the improvement comprising at least one removable heating element extending through said orifice in a wall thereof and exhaust means proximal said orifice for exhausting corrosive volatiles from above said molten glass in said conditioning system through the orifice when said removable heating element is removed therefrom.
2. The combination of claim 1 wherein said conditioning system has an entrance end for receiving molten glass from said melter, and said discharge port is in flow communication with said entrance end of said conditioning system thereby forming a juncture between said melter and said conditioning system, the combination further comprising a second exhaust system at said juncture for exhausting corrosive volatiles during the glass melting and conditioning operation.
3. The combination of claim 2 wherein said melter further includes means for providing batch material on top of said molten glass when in said melter so as to float on said molten glass in a layer thereon.
4. In the method of melting, conditioning and distributing molten glass wherein said method includes the steps of providing in serial flow communication, a melter, a walled conditioner and a forehearth array, melting glass in said melter, delivering molten glass from said melter to said conditioner, providing at least one heating means located in an orifice in a wall of said conditioner, delivering said molten glass from said conditioner to said forehearth and distributing said molten glass from said forehearth, wherein the method further includes the step of removing a substantial portion of said corrosive volatiles from the atmosphere above the glass before they reach the forehearth, the improvement comprising, removing at least one of said heating means from its respective orifice, thereby to provide an open orifice in a wall of said conditioner, providing an exhaust means in exhaust functioning communication with respect to said open orifice, and exhausting corrosive volatiles from said conditioner through said open orifice.
5. The method of claim 4 wherein said method further includes the step of providing batch material on top of the molten glass in said melter.
6. In a system for melting glass which includes a glass melter, a conditioner, and a forehearth wherein said glass melter is so constructed to discharge molten glass to said conditioner, wherein said conditioner is so constructed as to allow molten glass to flow through said conditioner to said forehearth and enter said forehearth at a lower temperature than the molten glass entered said conditioner, the improvement comprising a glass flow diverting structure so located so as to extend into said flow of molten glass in said conditioner so as to divert molten surface glass into molten glass beneath said molten surface glass.
7. The improvement according to claim 6 wherein said conditioner includes a top wall and glass flow diverting structure includes a walled structure extending downwardly from said top wall and of sufficient length so as to extend into said molten glass a sufficient distance to substantially equalize the depthwise temperature of the glass at any given location of the conditioner thereby to reduce crystallization of said glass in said conditioner.
8. The improvement according to claim 7 wherein said glass diverting structure includes means for cooling said structure.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/342,224 US6044667A (en) | 1997-08-25 | 1999-06-29 | Glass melting apparatus and method |
| US09/342,224 | 1999-06-29 | ||
| CA 2283020 CA2283020C (en) | 1999-06-29 | 1999-09-22 | Glass melting apparatus and method |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2283020 Division CA2283020C (en) | 1999-06-29 | 1999-09-22 | Glass melting apparatus and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2614867A1 true CA2614867A1 (en) | 2000-12-29 |
| CA2614867C CA2614867C (en) | 2012-02-14 |
Family
ID=39277223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2614867A Expired - Fee Related CA2614867C (en) | 1999-06-29 | 1999-09-22 | Glass melting apparatus and method |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2614867C (en) |
-
1999
- 1999-09-22 CA CA2614867A patent/CA2614867C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2614867C (en) | 2012-02-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20160922 |