CN101838099A - Method for homogenizing and defoaming molten glass and device thereof - Google Patents
Method for homogenizing and defoaming molten glass and device thereof Download PDFInfo
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- CN101838099A CN101838099A CN200910074314A CN200910074314A CN101838099A CN 101838099 A CN101838099 A CN 101838099A CN 200910074314 A CN200910074314 A CN 200910074314A CN 200910074314 A CN200910074314 A CN 200910074314A CN 101838099 A CN101838099 A CN 101838099A
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- molten glass
- type passage
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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
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
- C03B5/225—Refining
-
- 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
- C03B5/18—Stirring devices; Homogenisation
- C03B5/182—Stirring devices; Homogenisation by moving the molten glass along fixed elements, e.g. deflectors, weirs, baffle plates
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Melting And Manufacturing (AREA)
Abstract
The invention discloses a method for homogenizing and defoaming molten glass and a device thereof, and relates to an important process technology and special equipment for improving the product quality of a TFT-LED glass substrate. The method comprises warming and stirring and is realized by the following steps: (1) a box-type channel is arranged at the exit of molten glass; (2) a heating unit is arranged in a box-type channel structure; (3) an exhaust tube interface is arranged in an upper space of the box-type channel; (4) at least two current equalizing plates are arranged in a flowing direction along the molten glass in the box-type channel with equal spacing; and (5) the length of the box-type channel and the flow velocity of the molten glass are set according to homogenizing and defoaming technical indexes. The device is made by the method.
Description
Technical field:
The present invention is used for the manufacturing processed of glass substrate, when high temp glass liquid is carried, arrives the requirement of operation for after satisfying, and takes certain technical measures, and purpose is to the homogenizing of glass metal density distribution and gets rid of bubble.
Technical background:
In the production process of glass substrate, starting material devote and carry out melting in the melting kiln, during can produce a large amount of bubble and moisture.Major part all excludes from flue in these materials.Through the kiln discharge port time, because certain temperature drop makes the part gas bubble in glass metal, need this moment further to handle, further get rid of remaining bubble in the glass metal by the temperature of rising melten glass body.The density difference of glass metal stream each layer liquid stream in the circulation process also can produce differentiation in the viscosity difference and the process of flowing through, and must carry out homogenizing to glass metal and handle before entering next procedure.
Summary of the invention:
The objective of the invention is to be provided with a kind of processing method of design and device, carry out homogenizing and eliminate the bubble processing with the molten glass of high-quality realization to kiln discharge.
Method of the present invention comprises adopt to give birth to high-temperature and stirring, it is characterized in that present method takes following steps to realize:
A box-type passage (1) 1. is set in the exit of molten glass,
2. in box-type passage (1), heating unit is set,
3. the upper space in box-type passage (1) is provided with vapor pipe (2) interface,
4. in box-type passage (1) along at least 2 uniform flow orifices of flow direction equal intervals setting (3) of molten glass,
The length and the mobile speed of molten glass of box-type passage (1) 5. are set according to the technical indicator of homogenizing, de-bubble.
Involved in the present invention to homogenizing and get rid of bubble assembly and finish design according to above processing step just.Device has the box-type passage of a horizontal positioned, box house is provided with a plurality of uniform flow orifices, and in 1 to 6 exhaust pipe mouth of the top of casing arrangement, by the raise temperature of molten glass in this casing of the low tension heating unit that is provided with, force the bubble that is dissolved in the glass metal to be separated out, discharge by the set vapor pipe in box-type passage top again.Simultaneously, in the process of circulation of glass metal,, played the effect of density homogenizing because difform dividing plate group combination with holes forces the glass metal laminar flow of flowing through interlaced.
Description of drawings
Fig. 1 is a box-type channel architecture synoptic diagram.
Fig. 2 is an embodiment of external heating type box-type passage.
Fig. 3 is an embodiment of internally heated type box-type passage
The embodiment of the uniform flow orifice different shapes composite design in Fig. 4-Fig. 6 box-type passage.
Embodiment
The present invention relates to the method that a kind of molten glass carries out homogenizing, de-bubble, comprise and adopt elevated temperature and stirring, key to be that present method takes following steps to realize:
1. a box-type passage 1 is set in the exit of molten glass,
2. in the structure of box-type passage 1, heating unit is set,
3. the upper space in box-type passage 1 is provided with vapor pipe 2 interfaces,
4. in box-type passage 1 along at least 2 uniform flow orifices of flow direction equal intervals setting 3 of molten glass,
5. the length and the mobile speed of molten glass of box-type passage 1 are set according to the technical indicator of homogenizing, de-bubble.
The cross section of box-type passage 1 is designed to circle or rectangle, and lower space retains the molten glass glass metal in the casing, and the molten glass of handling well is derived from the outlet on the casing.
What box-type passage 1 was made the material use is platinum or platinum alloy, as platinum Rhodium 10-Pt90%Rh10% or platinum Rhodium 20-Pt80%Rh20%.
Above step 2. in set heating unit be the low-voltage electroheating device, power is at 30-60kW, electric current is 3000A-6000A, voltage is that 5V-10V. realizes that processing condition are that temperature is controlled at 1580 ℃-1670 ℃, be evenly distributed in the box-type passage 1, the viscosity of the glass metal that is passed through is controlled at the 300-1550 pool.
Above step 3. in vapor pipe 2 interfaces 1-6 is arranged, at box-type passage 1 top along the molten glass direction uniform distribution that flows.
Uniform flow orifice 3 shapes of above step in 4. are identical or approximate with the cross section of box-type passage 1, and the through hole of different size is set on the uniform flow orifice (3).
The uniform flow orifice 3 of above step in 4. is provided with the 2-6 sheet, and along the molten glass direction uniform distribution that flows, the shape of through holes, size, the distribution principle that are provided with on every uniform flow orifice 3 have nothing in common with each other at box-type passage 1 top.
A kind of device that molten glass is carried out homogenizing, de-bubble processing, comprise heating and stirring mechanism in the structure, key is that this device is the said box-type passage 1 of claim 1, and the structure unit in the box-type passage 1 is to form according to the step that claim 1 sets.
More than said molten glass is carried out the device that homogenizing, de-bubble are handled, it is characterized in that the outer setting of box-type passage 1 has mechanical type to strengthen hoop 4.
The box-type passage uses platinum or platinum rhodium alloy to make, and the volume of casing calculates gained according to the kiln load.General requirement glass metal residence time in this device is 45 minutes to 110 minutes.Time only in this way could guarantee that remaining bubble thoroughly discharges; Can obtain the volume of casing by above-mentioned time and flow, thereby determine the physical dimension of casing.
That is: V=MG* Δ T/ ρ
V wherein: the volume of this device box;
MG: the glass metal flow of this device of flowing through;
Δ T: the time that glass metal is detained in this device;
ρ: the mean density of glass metal;
In addition, for the physical strength that guarantees platinum when the high temperature with and work-ing life, the wall thickness of platinum casing should be between 0.9mm-1.2mm.Because use temperature is very high, the life-span of platinum pipeline is subjected to grievous injury, has therefore adopted the structure 4 of mechanical reinforcement in this device.
As main exhaust bubble means, the present invention uses the direct heating mode, and its needed heating power must reach the basic numerical value of technological design to the melten glass technical requirements.
Also disclosed especially among the present invention and in this device, be provided with the uniform flow orifice that 2-6 sheet platinum or platinum alloy are made.The structure form of uniform flow orifice and combination are in order to finish to the eliminating of bubble and to the homogenizing of glass metal.The thickness of uniform flow orifice is 0.3mm-0.9mm.
One of effect of uniform flow orifice is, stops the passing through of middle bubble of glass metal.The bubble of glass metal inside is hampered by this dividing plate, and forces it upwards to float along baffle wall, discharges from venting hole until emersion glass metal surface.Two of the effect of uniform flow orifice is, flow through glass metal in uniform flow orifice (3) hole, through the hole that differs in size, the flow trace that has broken up glass metal, continuous change along with flow trace, therefore force the glass metal of different densities to blend mutually, improved the inequality of glass metal density, make the glass metal homogenizing.
Uniform flow orifice is formed one group of inside that places the box-type passage, and be arranged on the transverse section of casing.The shape in hole can be circular, ellipse, and various circular curves such as para-curve, the distribution in hole is to stop that bubble and homogenizing density are purpose.
The setting of uniform flow orifice has changed the flow trace of glass metal effectively.The glass metal of different densities is mixed fully.Reached the effect of homogeneous.
Example 1: see Fig. 2.
Used the structure of indirect heating in this device 11 based on load, heating unit 66.Adopt the round barrel shape structure in this device: after in the glass metal flow ipe, be heated the element heating and be elevated to the deaeration temperature, bubble 44 is got rid of from the steam discharge mouth of pipe 22 through stopping of uniform flow orifice 33.Owing to have the hole 55 of different size and shape in the uniform flow orifice 33, the glass metal in the hole of flowing through can be in harmonious proportion mutually, has reached the effect of homogeneous simultaneously.
Example 2: see Fig. 3.
This device 301 considers to use the direct heating structure based on load,
Act on that energy resource supply is transformer 303 on this device, heating unit is this device itself 301.This device two ends are connected to the heating electrode 302 that platinum is made, and and loop line of platinum pipeline composition.Glass metal directly is heated to design temperature.Exhaust pipe mouth 306 is also heated by transformer 304 simultaneously.Under the effect of uniform flow orifice 307, stopped the motion of bubble 305 in the glass metal, make bubble rise along uniform flow orifice 307 uniform flow orifices, finally discharge from exhaust pipe mouth 306.And have dissimilar hole 308 to help the glass metal of different densities to be in harmonious proportion in the example 1 similar uniform flow orifice, finish the function of homogeneous.
Uniform flow orifice is an important setting among the present invention, according to different consideration needs different uniform flow orifice groups is set.To reach different purposes.
Application example 3: see Fig. 4.
The purpose of uniform flow orifice group setting is bubble in the glass metal fully to be blocked finally flee from out glass metal in this example.
Application example 4: see Fig. 5.
The purpose of this uniform flow orifice group setting is to make the density of glass metal fully be in harmonious proportion the purpose that reaches homogeneous.
Application example 5: see Fig. 6.
The purpose of this uniform flow orifice group setting is that the central zone temperature of glass metal and the temperature at glass metal edge fully are in harmonious proportion, to reach the purpose of homogeneous.
Claims (9)
1. method that molten glass carries out homogenizing, de-bubble comprises and adopts elevated temperature and stirring, it is characterized in that present method takes following steps to realize:
A box-type passage (1) 1. is set in the exit of molten glass,
2. in the structure of box-type passage (1), heating unit is set,
3. the upper space in box-type passage (1) is provided with vapor pipe (2) interface,
4. in box-type passage (1) along at least 2 uniform flow orifices of flow direction equal intervals setting (3) of molten glass,
The length and the mobile speed of molten glass of box-type passage (1) 5. are set according to the technical indicator of homogenizing, de-bubble.
2. according to the said method of claim 1, it is characterized in that the cross section of box-type passage (1) is designed to circle or rectangle, lower space retains the molten glass glass metal in the tube, and the molten glass of handling well is derived from the outlet on the casing.
3. according to the said method of claim 1, what box-type passage (1) was made the material use in it is characterized in that is platinum or platinum alloy, as platinum Rhodium 10 (Pt90%Rh10%) or platinum Rhodium 20 (Pt80%Rh20%).
4. according to the said method of claim 1, it is characterized in that set heating unit is the low-voltage electroheating device during step 2., power is at 30-60kW, electric current is 3000A-6000A, voltage is 5V-10V, realize that processing condition are that temperature is controlled at 1580 ℃-1670 ℃, be evenly distributed in the box-type passage (1) that the viscosity of the glass metal that is passed through is controlled at the 300-1550 pool.
5. according to the said method of claim 1, it is characterized in that vapor pipe (2) interface has 1-4 during step 3., at box-type passage (1) top along the molten glass direction uniform distribution that flows.
6. according to the said method of claim 1, it is characterized in that uniform flow orifice (3) shape during step 4. is identical or approximate identical with the cross section of box-type passage (1), the through hole of different size is set on the uniform flow orifice (3).
7. according to the said method of claim 1, it is characterized in that the uniform flow orifice (3) during step 4. is provided with the 4-6 sheet, at box-type passage (1) top along the molten glass direction uniform distribution that flows, every uniform flow orifice (3) go up the shape of through holes that is provided with, size, the distribution principle have nothing in common with each other.
8. one kind is carried out the device that homogenizing, de-bubble are handled to molten glass, comprise heating and stirring mechanism in the structure, it is characterized in that this device is the said box-type passage of claim 1 (1), the structure unit in the box-type passage (1) is to form according to the step that claim 1 sets.
9. the said according to Claim 8 device that molten glass is carried out homogenizing, de-bubble processing is characterized in that the outer setting of box-type passage (1) has mechanical type to strengthen hoop (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910074314A CN101838099A (en) | 2009-05-08 | 2009-05-08 | Method for homogenizing and defoaming molten glass and device thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910074314A CN101838099A (en) | 2009-05-08 | 2009-05-08 | Method for homogenizing and defoaming molten glass and device thereof |
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| CN101838099A true CN101838099A (en) | 2010-09-22 |
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| CN200910074314A Pending CN101838099A (en) | 2009-05-08 | 2009-05-08 | Method for homogenizing and defoaming molten glass and device thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103922563A (en) * | 2014-03-25 | 2014-07-16 | 湖北新华光信息材料有限公司 | High-efficiency homogenizing full-platinum structure clarification groove |
| CN106554145A (en) * | 2015-09-30 | 2017-04-05 | 安瀚视特控股株式会社 | The manufacture device of the manufacture method and glass substrate of glass substrate |
| CN107827338A (en) * | 2017-10-11 | 2018-03-23 | 湖北新华光信息材料有限公司 | A kind of glass clarifying device and defecation method |
| CN108009128A (en) * | 2017-11-15 | 2018-05-08 | 东旭科技集团有限公司 | A kind of appraisal procedure of glass metal uniformity |
| US10368480B2 (en) | 2015-01-20 | 2019-08-06 | Montag Investments, LLC | Single particulate metering system with variable rate controls |
| CN110922030A (en) * | 2019-12-05 | 2020-03-27 | 苏州卡利肯新光讯科技有限公司 | Method and device for removing bubbles of molten glass |
| CN111847844A (en) * | 2020-08-14 | 2020-10-30 | 蚌埠中光电科技有限公司 | Platinum channel for reducing temperature difference of molten glass |
| CN112030350A (en) * | 2020-08-28 | 2020-12-04 | 山西华康绿色建材有限公司 | Method for producing rock wool by using coal gangue |
| CN114436505A (en) * | 2022-02-10 | 2022-05-06 | 成都光明光电股份有限公司 | Optical glass clarifying device and clarifying method thereof |
| CN115466037A (en) * | 2022-09-02 | 2022-12-13 | 湖南旗滨微晶新材料有限公司 | Special glass preparation system and preparation method of special glass |
| CN117383796A (en) * | 2023-09-20 | 2024-01-12 | 青岛融合光电科技有限公司 | Novel glass liquid channel clarification section separation blade device |
-
2009
- 2009-05-08 CN CN200910074314A patent/CN101838099A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103922563A (en) * | 2014-03-25 | 2014-07-16 | 湖北新华光信息材料有限公司 | High-efficiency homogenizing full-platinum structure clarification groove |
| CN103922563B (en) * | 2014-03-25 | 2015-12-30 | 湖北新华光信息材料有限公司 | Efficient homogenizing full platinum structure clarifying tank |
| US10368480B2 (en) | 2015-01-20 | 2019-08-06 | Montag Investments, LLC | Single particulate metering system with variable rate controls |
| CN106554145A (en) * | 2015-09-30 | 2017-04-05 | 安瀚视特控股株式会社 | The manufacture device of the manufacture method and glass substrate of glass substrate |
| CN107827338A (en) * | 2017-10-11 | 2018-03-23 | 湖北新华光信息材料有限公司 | A kind of glass clarifying device and defecation method |
| CN108009128A (en) * | 2017-11-15 | 2018-05-08 | 东旭科技集团有限公司 | A kind of appraisal procedure of glass metal uniformity |
| CN110922030A (en) * | 2019-12-05 | 2020-03-27 | 苏州卡利肯新光讯科技有限公司 | Method and device for removing bubbles of molten glass |
| CN111847844A (en) * | 2020-08-14 | 2020-10-30 | 蚌埠中光电科技有限公司 | Platinum channel for reducing temperature difference of molten glass |
| CN111847844B (en) * | 2020-08-14 | 2022-05-24 | 蚌埠中光电科技有限公司 | Platinum channel for reducing temperature difference of glass melt |
| CN112030350A (en) * | 2020-08-28 | 2020-12-04 | 山西华康绿色建材有限公司 | Method for producing rock wool by using coal gangue |
| CN114436505A (en) * | 2022-02-10 | 2022-05-06 | 成都光明光电股份有限公司 | Optical glass clarifying device and clarifying method thereof |
| CN115466037A (en) * | 2022-09-02 | 2022-12-13 | 湖南旗滨微晶新材料有限公司 | Special glass preparation system and preparation method of special glass |
| CN117383796A (en) * | 2023-09-20 | 2024-01-12 | 青岛融合光电科技有限公司 | Novel glass liquid channel clarification section separation blade device |
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Application publication date: 20100922 |