CN101434451A - Novel technology for melting glass by one time power transformation of extra-high voltage - Google Patents
Novel technology for melting glass by one time power transformation of extra-high voltage Download PDFInfo
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- CN101434451A CN101434451A CN 200710166145 CN200710166145A CN101434451A CN 101434451 A CN101434451 A CN 101434451A CN 200710166145 CN200710166145 CN 200710166145 CN 200710166145 A CN200710166145 A CN 200710166145A CN 101434451 A CN101434451 A CN 101434451A
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- glass
- high voltage
- melting
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- 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
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- 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
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- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Furnace Details (AREA)
Abstract
The invention relates to a new technology for melting glass by using ultra-high voltage. The melting or the electric boosting of glass is carried out by first power transformation by adopting ultra-high voltage of 4KV to 35KV. The normal method for the melting or the electric boosting of glass is as follows: an electric power substation is firstly established, the ultra-high voltage is reduced to be 380V by the electric power substation, then the electrical energy is exerted to the glass melt by secondary power transformation by a switch board and an isolation transformer for melting the glass or carrying out electric boosting. In the invention, the isolation transformer primary coils are directly linked to ultra high voltage and the isolation transformer secondary coils cause the electrical energy to be exerted to the glass melt for melting the glass or carrying out electric boosting. The exerted electrical energy is adjusted by the switch board rather than carrying out voltage conversion by the electric power substation, thereby saving the production line construction investment, avoiding the direct-current component possibly generated by carrying out adjustment by using controlled silicon, effectively protecting electrodes and prolonging the service life of the electrodes.
Description
The present invention relates to a kind of with extra-high voltage by one time power transformation molten glass new technology.
The all-electric melting cell furnace is used the electric energy molten glass fully, electricity fusing-aid cell furnace electric energy booster flame molten glass.Adopting all-electric melting (electricity fusing-aid) technology mainly is in order to solve the fusing problem of color material or part infusibility material, to reach the purpose that improves glass output simultaneously when needed.Domestic method in common is to build an electric substation earlier, and the extra-high voltage on the electrical network is reduced to 380V, just can be used for all-electric melting or electricity fusing-aid then.Its drawback not only increases floor space, and has strengthened the investment of founding the factory, and is that 10 tons all-electric melting kiln is an example with day fusing amount, builds an electric substation and needs more than 100 ten thousand yuan of the investments that increase more.The technology that the present invention relates to has been save electric substation, directly extra-high voltage be applied to isolating transformer elementary on, need not SCR control, avoided the issuable DC component of circuit.
The scope of ultra-high voltage of the present invention be 3KV to 35KV, to 1000V, isolating transformer is divided into oil immersion magnetic and transfers two kinds of isolating transformer and dry type isolating transformer the primary reference voltage of isolating transformer: 3KV to 35KV, secondary voltage scope: 30V.
Extra-high voltage molten glass technology of the present invention (Figure of description 1 is seen in technical process).
In order to more fully understand the present invention, provide following examples as an illustration.
The glass melter of different varieties, different type, electrode insertion and arrangement mode, position may have than big difference.
Below be example with the natural pneumoelectric boosting of a combustion cell furnace that can be used for melting black glass and high lead glass, illustrated.
For the fusing of black glass, volume melting rate specific area melting rate more can illustrate the melting capacity and the feature of melting furnaces.The black glass diathermancy is poor, although the dark design in melting end pond more shallow (～1100mm),, motionless layer still may account for half.Glass melting is accompanied by the diffusion and the physicochemical change of material, needs the regular hour, and the mobile layer attenuate means the decline of fusing amount.One of effect of electricity fusing-aid is to become the motionless layer of lower floor to be mobile layer.Second effect of electricity fusing-aid is the glass clarifying effect of strengthening focus.
Arrangement of electrodes is established three groups of flux electrode and one group of anti-blocking electrode altogether.Two groups of electrode crossing of fluxing arrange that main effect is to be the glass metal heat supply of middle lower floor, become motionless layer and are mobile layer.The 3rd group of electrode horizontal tilt arranges that effect is to reduce point discharge, the effect of raising focus.Electrode can adopt horizontal inserted mode or vertical inserted mode.Be illustrated in figure 2 as horizontal inserted mode.
The control scheme of extra-high voltage molten glass technology of the present invention has four kinds: permanent power control, continuous current control, stationary temperature control and the control of permanent resistance.
Permanent power control: this control is used for electricity fusing-aid more.With constant power supply melting furnaces molten glass;
Continuous current control: with the current supply melting furnaces molten glass of constant.Its advantage is to avoid burning owing to electric current is excessive transformer and operating device.Its principle is: at this moment be applied to the temperature rising of glass metal the just reduction automatically of voltage on the electrode, thereby power is descended when certain reason makes:
P＝IV
In the formula: P-power;
I-electric current;
V-voltage.
From following formula as seen, the power that is input to melting furnaces reduces thereupon, from but temperature of glass liquid descend; Otherwise the voltage that is applied between the electrode can raise automatically, and the electric power that is input to melting furnaces increases, and net result is a current temperature, and the temperature of glass liquid in the melting furnaces is stable.
Stationary temperature control: be feedback signal with the temperature of glass liquid mainly, when temperature of glass liquid descended, the electric power of input melting furnaces strengthened automatically, otherwise, reduce automatically, finally make temperature of glass liquid invariable.
Permanent resistance control: when temperature hysteresis was serious, the temperature thermostatic control may cause dispersed.The resistance of glass metal and the temperature of glass metal are positive relation-changing.Take permanent resistance control can reach thermostatically controlled purpose preferably.
Description of drawings: Fig. 1 is an extra-high voltage molten glass process flow sheet.Fig. 2 is the horizontal inserted mode of electrode.
Claims (5)
1, a kind of with extra-high voltage molten glass new technology.It is characterized in that extra-high voltage directly being applied in the glass metal by isolating transformer by one time power transformation, reach the purpose of electrofusion glass or electricity fusing-aid glass without electric substation.
2, method according to claim 1 is characterized in that the scope at ultra-high voltage is that 3KV is to 35KV.
3, according to the described method of claim 1-2, it is characterized in that the primary reference voltage of isolating transformer: 3KV is to 35KV secondary voltage scope: 30V is to 1000V.
4, method according to claim 3 is characterized in that isolating transformer divides oil immersion magnetic to transfer two kinds of isolating transformer and dry type isolating transformer.
5,, it is characterized in that total system can adopt permanent power control, continuous current control, the control of permanent resistance and thermostatic control according to the described method of claim 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710166145 CN101434451A (en) | 2007-11-12 | 2007-11-12 | Novel technology for melting glass by one time power transformation of extra-high voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710166145 CN101434451A (en) | 2007-11-12 | 2007-11-12 | Novel technology for melting glass by one time power transformation of extra-high voltage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101434451A true CN101434451A (en) | 2009-05-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710166145 Pending CN101434451A (en) | 2007-11-12 | 2007-11-12 | Novel technology for melting glass by one time power transformation of extra-high voltage |
Country Status (1)
| Country | Link |
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| CN (1) | CN101434451A (en) |
Cited By (1)
| 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 |
-
2007
- 2007-11-12 CN CN 200710166145 patent/CN101434451A/en active Pending
Cited By (1)
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090520 |