CN110498592A - Method and its glass furnace is melted in glass metal Continuous Electromagnetic induction heating - Google Patents
Method and its glass furnace is melted in glass metal Continuous Electromagnetic induction heating Download PDFInfo
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- CN110498592A CN110498592A CN201810484292.9A CN201810484292A CN110498592A CN 110498592 A CN110498592 A CN 110498592A CN 201810484292 A CN201810484292 A CN 201810484292A CN 110498592 A CN110498592 A CN 110498592A
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- glass
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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
- C03B5/021—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in electric furnaces, e.g. by dielectric heating by induction heating
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Abstract
Method and its glass furnace is melted in a kind of glass metal Continuous Electromagnetic induction heating, it is characterized in that: the crucible bottom being in contact with glass metal or bottom is arranged in heating material in electromagnetic induction crucible furnace, carries out heating to glass metal and is melted；This heating material is high-temperature liquid material or high-temperature solid material；The glass liquid layer of melting is covered on heating material, and completely cuts off heating material completely with air, to avoid its oxidation；It is equipped with glass metal runner in the side of glass liquid layer, glass metal clarifying basin is equipped with below glass metal runner, the glass metal melted in electromagnetic induction crucible furnace is flowed into glass metal clarifying basin by glass metal runner, cooling after clarification, molding；On the glass liquid layer melted in electromagnetic induction crucible furnace, it is covered with one layer of glass batch being constantly melted, is fed for the heat preservation of glass liquid layer and for electromagnetic induction crucible furnace.
Description
Technical field
Process of glass.
Background technique
Currently, mainly using surface heated method with fuel continuous melting glass metal.It, which has, several is difficult to overcome
Disadvantage: first is that the thermal efficiency is lower, thermal losses is serious；Second is that melting rate is lower；Third is that the fuel gas temperature height of melting tank combustion space,
Flow velocity is big, corrodes comparatively fast kiln refractory material, reduces kiln service life.In order to save the energy, reduce discharge and reduction
Cost simultaneously improves kiln service life, is all exploring more effective heating means instead of surface heating, such as submergence combustion both at home and abroad
Burning and heated by electrodes, they belong to the melting method heated inside glass metal.
So-called submerged combustion is to be inserted into gaseous fuel combustion device in kiln from kiln bottom, keeps the exhaust gas of burning straight with high temperature and high speed
It connects and sprays into the glass metal of molten bath, stir glass metal, and most of heat is transmitted to glass metal and batch, keep frit rapid
Fusing.
This method not only can be such that the heat of burning gases is fully absorbed by glass metal, and heat loss is small, and melting rate is high, energy conservation
Effect is very significant, and (melting rate of submerged combustion method is introduced up to 9 ~ 10 ton/square metre days, per kilogram glass metal heat by foreign countries
Consumption is at 1000 kilocalories or less).And since high-temperature gas seethes, stirring action is risen to glass metal, keeps the glass metal in pond more equal
It is even.Again since the exhaust gas temperature for leaving glass metal is basic identical with the temperature of watch crystal liquid in molten bath, thus reduce melting furnaces
The temperature in space extends the service life of kiln.
Submerged combustion method has many advantages, therefore the beauty including China, day, method, E Deng state all successively carry out
In-depth study and test, but up to the present do not succeed in large-scale industrial application.
The reason is that it is this tradition submerged combustion method have insoluble problem: 1, clear up problems: to
When spraying into combustion gas and air mixture in glass metal (combustion product), the operating condition of nozzle is relatively difficult, only mixed gas
When consumption is substantially exceeded with air or dry drum armful, being melted can be just normally carried out.Since fierce be bubbled of glass metal is seethed, make glass
Glass liquid show bubble, the minute gas field trash of itself significantly increase, and therefore, keep glass metal clarification highly difficult.2, fuel is asked
Topic: the blub ingredient for occluding or being mingled in the melt does not participate in the inactive gas of reaction, that is, fuel combustion mainly
The nitrogen released in journey, as: it is nitrogenous in combustion product caused by the submerged combustion nozzle with one air gas mixture of natural gas
Amount is more than 70%, and general combustion method then allows the nitrogen content in combustion product to be no more than 30%, for plate glass, then
Preferably no more than 10% (weight).Therefore, this is also the main reason for air inclusions are more.It can effectively be solved with pure oxygen burning technique
Certainly above-mentioned two problems, but the problem of bringing is that flame temperature is excessively high, nozzle deteriorate too fast, and can not compensate or replace.3,
Combustor problem: since burner submerges in the melt, quality, riding position and operation control were all required than in the past
Strictly, otherwise, once burning is broken down, solidify glass metal in it into people, then cannot be used continuously.In addition, working as glass metal
When reaching certain depth, the impulse force of nozzle is inadequate, and flame is not then into glass metal, and refractory material sprays from the side.Qinhuangdao glass
Glass research institute just encountered in test such case.Reducing nozzle diameter can solve the above problems, but will cause the combustion heat
Measure insufficient problem.4, refractories: since glass metal acutely seethes in kiln, superstructure space can be sputtered
The glass metal come is washed away, and general silica brick and chrome brick do not adapt to the needs of this melting furnaces.When in the multiple burnings of bottom of pond setting
When nozzle, it can also weaken the intensity of refractory material.In addition, the natural gas that burns such as in melt is (for the 7- for feeding total amount in kiln
10%), heat exchange can be made to greatly reinforce.The amount of natural gas directly burnt in melting furnaces is improved too much, and refractory material is tight by erosion
Weight.5, the fluctuation of viscosity of glass metal, bleed pressure and flow, the influence to mixture pressure and spray speed is very big, is difficult to it
It is maintained in glass metal to long term constant and burns, easily cause de- fire or tempering phenomenon.6, the most key problem is: due to
It is limited by material, burner (especially bocca) is easily lost, the service life is shorter, and both can not compensate or be difficult to replace.Institute
Although with by long-term research and test, be difficult to put into practical application.
And the shortcomings that heated by electrodes is that kiln width is restricted, production scale is small；It is led since it is desired that relying on kalium ion and natrium ion
Electricity, therefore alkali-containing glass can only be produced.
Summary of the invention
To solve the above problems, the present invention provides a kind of glass metal Continuous Electromagnetic induction heatings, and method and its glass is melted
Glass kiln, it is characterized in that: heating material to be arranged in the crucible bottom being in contact with glass metal in electromagnetic induction crucible furnace
Or bottom, heating is carried out to glass metal and is melted；This heating material is high-temperature liquid material or high-temperature solid material；Melting
Glass liquid layer is covered on heating material, and completely cuts off heating material completely with air, to avoid its oxidation；In glass
The side of liquid layer is equipped with glass metal runner, glass metal clarifying basin is equipped with below glass metal runner, in electromagnetic induction crucible furnace
The glass metal of fusing is flowed into glass metal clarifying basin by glass metal runner, cooling after clarification, molding；In electromagnetic induction earthenware
On the glass liquid layer melted in crucible furnace, be covered with one layer of glass batch being constantly melted, for glass liquid layer heat preservation and
For electromagnetic induction crucible furnace feed；A certain number of electromagnetic induction crucible furnaces are equipped on glass metal clarifying basin periphery, wherein one
The division of labor is made, a part of spare, can accomplish in the case where the not underproduction, allow all electromagnetic induction crucible furnaces to overhaul in turn, to protect
Demonstrate,prove the service life of glass melter.
Above-mentioned high-temperature liquid material is metal material.
Above-mentioned metal material is elemental copper, fe or their alloy material.
Above-mentioned high-temperature solid material is refractory metal (such as tungsten, platinum, molybdenum etc.) or graphite material.
The invention has the beneficial effects that: 1, the melted thermal efficiency of glass metal can greatly improve, 2, the saving energy and nothing
Exhaust gas discharge, 3, fusion temperature is high and controllable precise, 4, alkali-free high-melting glass, 5, melting furnaces long service life can be melted.
Detailed description of the invention
Fig. 1 is the principle assumption diagram of one of embodiment of the present invention.
Fig. 2 is two principle assumption diagram of the embodiment of the present invention.
Fig. 3 is three principle assumption diagram of the embodiment of the present invention.
1. electromagnetic induction crucible furnace furnace wall refractory in figure, 2. high-temperature liquid materials, 2a. high-temperature solid material 3.
Glass metal, 4. glass batches, 5. electromagnetic heating coils, 6. iron cores, 7. sealing thermal insulation layers, 8. Chi Ding, 9. flashboards, 10.
Glass metal runner.
Specific embodiment
In Fig. 1, high-temperature liquid material 2 is arranged in the crucible bottom being in contact with glass metal 3 in electromagnetic induction crucible furnace
Portion carries out heating to glass metal 3 and is melted；3 layers of glass metal of melting are covered on high-temperature liquid material 2, and make high-temperature liquid state
Material 2 completely cuts off completely with air, to avoid its oxidation；It is equipped with glass metal runner 10 in the side of glass liquid layer, in glass liquid stream
Glass metal clarifying basin is equipped with below road 10, the glass metal 3 melted in electromagnetic induction crucible furnace is flowed by glass metal runner 10
Into glass metal clarifying basin, cooling after clarification, molding；On the glass liquid layer melted in electromagnetic induction crucible furnace, it is covered with one
The glass batch 4 that layer is constantly melted is fed for the heat preservation of glass liquid layer and for electromagnetic induction crucible furnace.
Specific embodiment
In Fig. 1, high-temperature liquid material 2 is arranged in the crucible bottom being in contact with glass metal 3 in electromagnetic induction crucible furnace
Portion carries out heating to glass metal 3 and is melted；3 layers of glass metal of melting are covered on high-temperature liquid material 2, and make high-temperature liquid state
Material 2 completely cuts off completely with air, to avoid its oxidation；It is equipped with glass metal runner 10 in the side of glass liquid layer, in glass liquid stream
Glass metal clarifying basin is equipped with below road 10, the glass metal 3 melted in electromagnetic induction crucible furnace is flowed by glass metal runner 10
Into glass metal clarifying basin, cooling after clarification, molding；On the glass liquid layer melted in electromagnetic induction crucible furnace, it is covered with one
The glass batch 4 that layer is constantly melted is fed for the heat preservation of glass liquid layer and for electromagnetic induction crucible furnace.
In Fig. 2, a certain number of electromagnetic induction crucible furnaces are equipped on glass metal clarifying basin periphery, a portion works,
It is a part of spare, it can accomplish in the case where the not underproduction, all electromagnetic induction crucible furnaces is allowed to overhaul in turn, to guarantee that glass is molten
The service life of kiln.
In Fig. 3, high-temperature solid material 2a is arranged under the crucible being in contact with glass metal 3 in electromagnetic induction crucible furnace
Portion carries out heating to glass metal 3 and is melted；Sealing thermal insulation layer 7, and the glass metal melted are coated on the outside of high-temperature solid material 2a
Layer is covered on high-temperature solid material 2a, completely cuts off high-temperature solid material 2a completely with air, to avoid its oxidation；In glass
The side of liquid layer is equipped with glass metal runner 10, glass metal clarifying basin is equipped with below glass metal runner 10, in electromagnetic induction crucible
The glass metal 3 melted in furnace, is flowed into glass metal clarifying basin by glass metal runner 10, cooling after clarification, molding；In electromagnetism
On the glass liquid layer melted in induction crucible furnace, it is covered with one layer of glass batch being constantly melted 4.
Claims (3)
1. method and its glass furnace is melted in a kind of glass metal Continuous Electromagnetic induction heating, it is characterized in that: in electromagnetic induction earthenware
The crucible bottom being in contact with glass metal or bottom is arranged in heating material in crucible furnace, heating is carried out to glass metal and is melted；
This heating material is high-temperature liquid material or high-temperature solid material；The glass liquid layer of melting be covered on heating material it
On, and completely cut off heating material completely with air, to avoid its oxidation；It is equipped with glass metal runner in the side of glass liquid layer,
Glass metal clarifying basin is equipped with below glass metal runner, the glass metal melted in electromagnetic induction crucible furnace passes through glass liquid stream
Road is flowed into glass metal clarifying basin, cooling after clarification, molding；On the glass liquid layer melted in electromagnetic induction crucible furnace, cover
It is stamped one layer of glass batch being constantly melted, is fed for the heat preservation of glass liquid layer and for electromagnetic induction crucible furnace；In glass
Glass liquid clarifying basin periphery is equipped with a certain number of electromagnetic induction crucible furnaces, and a portion work is a part of spare, can accomplish
In the case where the not underproduction, all electromagnetic induction crucible furnaces is allowed to overhaul in turn, to guarantee the service life of glass melter.
2. method and its glass furnace is melted in a kind of glass metal Continuous Electromagnetic induction heating according to claim 1,
Be characterized in: above-mentioned high-temperature liquid material is elemental copper, fe or their alloy material.
3. method and its glass furnace is melted in a kind of glass metal Continuous Electromagnetic induction heating according to claim 1,
Be characterized in: above-mentioned high-temperature solid material is refractory metal or graphite material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810484292.9A CN110498592A (en) | 2018-05-19 | 2018-05-19 | Method and its glass furnace is melted in glass metal Continuous Electromagnetic induction heating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810484292.9A CN110498592A (en) | 2018-05-19 | 2018-05-19 | Method and its glass furnace is melted in glass metal Continuous Electromagnetic induction heating |
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| Publication Number | Publication Date |
|---|---|
| CN110498592A true CN110498592A (en) | 2019-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810484292.9A Pending CN110498592A (en) | 2018-05-19 | 2018-05-19 | Method and its glass furnace is melted in glass metal Continuous Electromagnetic induction heating |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111471876A (en) * | 2020-05-07 | 2020-07-31 | 广州湘龙高新材料科技股份有限公司 | Preparation method of zinc alloy |
| CN113336420A (en) * | 2021-06-29 | 2021-09-03 | 南京玻璃纤维研究设计院有限公司 | Molten glass stirring control system and method for laboratory |
| CN113461309A (en) * | 2021-06-21 | 2021-10-01 | 中国原子能科学研究院 | Power control method |
-
2018
- 2018-05-19 CN CN201810484292.9A patent/CN110498592A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111471876A (en) * | 2020-05-07 | 2020-07-31 | 广州湘龙高新材料科技股份有限公司 | Preparation method of zinc alloy |
| CN113461309A (en) * | 2021-06-21 | 2021-10-01 | 中国原子能科学研究院 | Power control method |
| CN113336420A (en) * | 2021-06-29 | 2021-09-03 | 南京玻璃纤维研究设计院有限公司 | Molten glass stirring control system and method for laboratory |
| CN113336420B (en) * | 2021-06-29 | 2023-06-02 | 南京玻璃纤维研究设计院有限公司 | Molten glass stirring control system and method for laboratory |
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Application publication date: 20191126 |