CN202063819U - Electric melting furnace for special glass - Google Patents
Electric melting furnace for special glass Download PDFInfo
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- CN202063819U CN202063819U CN 201120154708 CN201120154708U CN202063819U CN 202063819 U CN202063819 U CN 202063819U CN 201120154708 CN201120154708 CN 201120154708 CN 201120154708 U CN201120154708 U CN 201120154708U CN 202063819 U CN202063819 U CN 202063819U
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- electrode
- melting
- special glass
- melting furnace
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Abstract
The utility model provides an electric melting furnace for special glass and belongs to the technical field of melting special glass products at high temperature. The electric melting furnace consists of a bottom-plugged electrode, an arch top, a melting part, a forming part, heat insulating layers and a power supply system, wherein the melting part appears in square shape, a side-plugged electrode and the bottom-plugged electrode serve as working electrodes, power is supplied in a scott wiring way, and both the glass melting part and the forming part are provided with the heat insulating layers. In the electric melting furnace, a side-plugged stick electrode and a bottom-plugged stick-shaped molybdenum electrode are adopted to supply the power, and a glass liquid resistor are adopted to conduct electricity and produce heat; as the side-plugged stick electrode is adopted, the stable distribution of hotspot temperature and temperature gradient at the inner part of glass liquid is ensured; the service life of the furnace is more than one year; and the electric melting furnace is particularly suitable for melting the special glass.
Description
Technical field
The utility model relates to a kind of special glass electric melting furnace that is used for, be specially in the glass smelting process of special glass electric melting furnace, foursquare melting end adopts bar-shaped side intercalative electrode to participate in glass melting, all adopts fine and close zirconia block according to brick at the bottom of the sidewall block of the character forming part of special glass and the pond.The bushing brick of forming part adopts the good fine and close zirconia block of thermal shock resistance.
Background technology
Special glass fibre adopts the electric melting furnace molten glass usually, introduce high liquid level, cold top kiln molten glass that the special glass smelting furnace adopts the Pt Rh alloy heating in the United States Patent (USP) 4262158, but this kiln needs a large amount of platinum rhodiums, and high liquid level melting furnaces are only applicable to the good glass of diathermancy.Domestic production special glass fibre, belong to dark glass as fiberglass such as high-strength glass fibre, low dielectric, anti-irradiation, melting furnaces liquid is deeply less than 450mm in the past, furnace construction is a rectangle, long-width ratio is more than 2: 1, the area melting rate of kiln is low, the energy consumption height.
Specifically, owing in the glass melter in the past, adopt rectangular melting end, under the condition of area identical melting rate, the thermosteresis of rectangle melting end is bigger, is unfavorable for saving energy consumption.Melting end adopts flat-top, the phenomenon of subsiding in use occurs, and furnace roof corrodes bigger, shortens kiln age.
Melting end adopts plate electrode in the process of using, and particularly the kiln later stage causes the erosive velocity of bottom brick material to be accelerated because the distortion of electrode makes that the secondary voltage of kiln is less, and secondary current increases gradually.Be unfavorable for guaranteeing the quality of fusion cast glass, and shortened kiln age.Adopt the hot(test)-spot temperature of plate electrode glass metal to change greatly in addition.
Summary of the invention
The purpose of this utility model is to improve special glass electric melting furnace fusing effect, and prolongs the life-span of glass electric melting furnace.
For achieving the above object, the technical solution of the utility model is:
A kind of special glass electric melting furnace comprises melting end, forming part and power supply system; Be communicated with by the gap bridge dog-hole between melting end and the forming part; Be stamped the stone arch on the described melting end; Be provided with vertical-insert electrode in the described melting end, on vertical-insert electrode is inserted at the bottom of the interior pond of melting end.Also be provided with the side intercalative electrode in the melting end, the side intercalative electrode is inserted on the interior sidewall of melting end; Described power supply system is given vertical-insert electrode and the power supply of side intercalative electrode in the melting end.
Be inserted with plate electrode on the sidewall in the described forming part; Described power supply system is given the power supply of the plate electrode in the forming part.
Side intercalative electrode in the described melting end is a stick electrode.
Described power supply system adopts the power supply of the scott mode of connection by exciting transformer.Because this mode is often seen in the prior art, does not further limit at this.
Adopt fine and close zirconia block at the bottom of sidewall in the described melting end and the pond.
Adopt fine and close zirconia block at the bottom of sidewall in the described forming part and the pond.
Described gap bridge dog-hole liner molybdenum protective sleeve.
The utility model is compared the advantage that has with existing special glass electric melting furnace:
(1) adopt the lateral contact pin electrode after, the utlity model has the temperature field of less temperature gradient distribution, the distortion of electrode is little, and is stable and the position is reasonable between hot(test)-spot temperature and hot zone.And electrical parameter is stable.Avoid because the unreasonable erosion aggravation that causes the brick material of temperature distribution improves furnace service life.
(2) glass melting and forming part adopt fine and close zirconia block to reduce the erosion of refractory materials, improve kiln age.
(3) owing to adopt gap bridge dog-hole liner molybdenum protective sleeve, reduce the erosion of refractory materials, improved kiln age.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing.
Fig. 1 is the cross-sectional schematic of the utility model embodiment.
Fig. 2 is the schematic top plan view of Fig. 1.
Fig. 3 is that synoptic diagram is looked on the right side of Fig. 1.
Number in the figure is:
The fine and close zirconium electrode brick of 1-, 2-sidewall thermal insulation layer, the side intercalative electrode of 3-melting end, the tabular side intercalative electrode of 4-forming part, 5-dog-hole, the fine and close zirconia block of 6-, the 7-vertical-insert electrode, 8-melting end thermometer hole, backing brick at the bottom of the 9-zircon pond, 10-mullite arch dome brick, the 11-furnace door brick, 12-melting end high alumina globars hole brick, 13-forming part high alumina globars hole brick, 14-forming part thermometer hole.15-melting end arch top, 16-arch angle brick, 17-gap bridge dog-hole.
Embodiment
A kind of special glass electric melting furnace comprises melting end, forming part and power supply system; Be communicated with by the gap bridge dog-hole between melting end and the forming part; Be stamped the stone arch on the described melting end; Be provided with vertical-insert electrode in the described melting end, on vertical-insert electrode is inserted at the bottom of the interior pond of melting end.Also be provided with the side intercalative electrode in the melting end, the side intercalative electrode is inserted on the interior sidewall of melting end; Described power supply system is given vertical-insert electrode and the power supply of side intercalative electrode in the melting end.
Be inserted with plate electrode on the sidewall in the described forming part; Described power supply system is given the power supply of the plate electrode in the forming part.Side intercalative electrode in the described melting end is a stick electrode.Described power supply system adopts the power supply of the scott mode of connection by exciting transformer.Adopt fine and close zirconia block at the bottom of sidewall in the described melting end and the pond.Adopt fine and close zirconia block at the bottom of sidewall in the described forming part and the pond.Described gap bridge dog-hole liner molybdenum protective sleeve.
Specifically, with reference to figure 1, Fig. 2 and Fig. 3
Heating-up furnace: all adopt glass cullet when at first filling out kiln, utilize globars to heat up, when kiln temperature reaches 1000 ℃, improve temperature rise rate according to the heating-up furnace system of formulating.And frequent sight glass liquid surface, feed supplement timely avoids electrodes exposed in air.When metal depth fixing electrical parameter just often, stablize after one day and carry out thermometric with thermopair.Adjust electrical parameter according to temperature-measuring results, kiln normally moves.
Compare with existing electric smelting kiln, the utility model adopts the lateral contact pin electrode, after heating-up furnace finishes, determines behind the electrical parameter to distribute the power ratio of lateral contact pin electrode and vertical-insert electrode as the melting end electric power according to the melting technology parameter request.Reinforced according to normal discharge requirement and process system, found on the cold top of realization special glass.
In the utility model at the bottom of the sidewall of forming part and the pond brick all adopt fine and close zirconia block, the contrast quartz brick erosion condition obtain obvious improvement; The bushing brick has reduced " flash-point " situation in the glass flows thigh after adopting the good fine and close zirconia block of thermal shock resistance.Use the molybdenum protective sleeve to protect to the position of dog-hole, reduced near the erosion of washing away of the brick material of dog-hole.Contrast former special glass electric smelting kiln, the life-span prolongs more than 50%.
Melting end adopts the lateral contact pin electrode to make glass metal temperature inside temperature distribution more reasonable.Because this power supply mode has solved the contradiction of two-phase electricity consumption or pseudotwophase electricity consumption and three-phase equilibrium power supply well, thereby help the grid balance of the big power load of electric glass melting.In the kiln of the complete symmetric arrangement of electrode, its internal current distributes, power distributes also is symmetric fully, thereby helps glass melting.Fixedly the side intercalative electrode of melting end and vertical-insert electrode found power ratio, it is stable that the focus of glass metal and hotspot location keep.Owing to adopted the lateral contact pin electrode, the efficient of founding of surperficial powder obviously improves.
The special glass material of founding is made glass sphere, the examination process for forming glass, under identical fiber drawing furnace and drawing process condition, wire-drawing bench day output, yield rate and qualification rate all reach former melting furnaces glass sphere processing performance.
Claims (7)
1. a special glass electric melting furnace comprises melting end, forming part and power supply system; Be communicated with by the gap bridge dog-hole between melting end and the forming part; Be stamped the stone arch on the described melting end; Be provided with vertical-insert electrode in the described melting end, vertical-insert electrode is characterized in that also being provided with in the melting end side intercalative electrode on being inserted at the bottom of the interior pond of melting end, and the side intercalative electrode is inserted on the interior sidewall of melting end; Described power supply system is given vertical-insert electrode and the power supply of side intercalative electrode in the melting end.
2. special glass electric melting furnace according to claim 1 is characterized in that being inserted with plate electrode on the sidewall in the described forming part; Described power supply system is given the power supply of the plate electrode in the forming part.
3. special glass electric melting furnace according to claim 1 and 2 is characterized in that the side intercalative electrode in the described melting end is a stick electrode.
4. special glass electric melting furnace according to claim 3 is characterized in that described power supply system adopts the power supply of the scott mode of connection by exciting transformer.
5. special glass electric melting furnace according to claim 1 is characterized in that adopting fine and close zirconia block at the bottom of sidewall in the described melting end and the pond.
6. special glass electric melting furnace according to claim 1 is characterized in that adopting fine and close zirconia block at the bottom of sidewall in the described forming part and the pond.
7. special glass electric melting furnace according to claim 1 is characterized in that described gap bridge dog-hole liner molybdenum protective sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120154708 CN202063819U (en) | 2011-05-16 | 2011-05-16 | Electric melting furnace for special glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120154708 CN202063819U (en) | 2011-05-16 | 2011-05-16 | Electric melting furnace for special glass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202063819U true CN202063819U (en) | 2011-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120154708 Expired - Lifetime CN202063819U (en) | 2011-05-16 | 2011-05-16 | Electric melting furnace for special glass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202063819U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103482850A (en) * | 2013-09-18 | 2014-01-01 | 江苏元升太阳能集团有限公司 | Double-crown melting furnace side insertion electrode electric boost |
| CN103496840A (en) * | 2013-09-18 | 2014-01-08 | 江苏元升太阳能集团有限公司 | Electric boosting device used for horseshoe flame melting furnace and provided with side-inserted electrodes |
| CN105712610A (en) * | 2016-01-19 | 2016-06-29 | 东华大学 | Basalt continuous fiber furnace with bottom-inserted electrode |
-
2011
- 2011-05-16 CN CN 201120154708 patent/CN202063819U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103482850A (en) * | 2013-09-18 | 2014-01-01 | 江苏元升太阳能集团有限公司 | Double-crown melting furnace side insertion electrode electric boost |
| CN103496840A (en) * | 2013-09-18 | 2014-01-08 | 江苏元升太阳能集团有限公司 | Electric boosting device used for horseshoe flame melting furnace and provided with side-inserted electrodes |
| CN105712610A (en) * | 2016-01-19 | 2016-06-29 | 东华大学 | Basalt continuous fiber furnace with bottom-inserted electrode |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200220 Address after: 210000 No.30, Andri, Yuhua West Road, Nanjing, Jiangsu Province Patentee after: Nanjing Glass Fibre Research and Design Institute company limited Address before: Jiangning District of Nanjing City, Jiangsu province 211100 Jiangning Science Park Tong Road No. 99 Patentee before: Sinoma Science & Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111207 |
|
| CX01 | Expiry of patent term |