CN102612498B - Molten glass supply device - Google Patents
Molten glass supply device Download PDFInfo
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- CN102612498B CN102612498B CN201080051919.3A CN201080051919A CN102612498B CN 102612498 B CN102612498 B CN 102612498B CN 201080051919 A CN201080051919 A CN 201080051919A CN 102612498 B CN102612498 B CN 102612498B
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- melten glass
- mentioned
- scallop
- feedway
- 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
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
- C03B5/26—Outlets, e.g. drains, siphons; Overflows, e.g. for supplying the float tank, tweels
- C03B5/265—Overflows; Lips; Tweels
- C03B5/267—Overflows; Lips; Tweels specially adapted for supplying the float tank
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B18/00—Shaping glass in contact with the surface of a liquid
- C03B18/02—Forming sheets
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B7/00—Distributors for the molten glass; Means for taking-off charges of molten glass; Producing the gob, e.g. controlling the gob shape, weight or delivery tact
- C03B7/01—Means for taking-off charges of molten glass
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Compositions (AREA)
- Glass Melting And Manufacturing (AREA)
Abstract
A molten glass supply device capable of supplying high-quality float glass not containing bubbles, etc. A molten glass supply device is provided with: a supply pipe for transferring molten glass from a glass forming region to a molten glass supply section of a float bath; and a tweel provided to the molten glass supply section of the float bath so as to face the opening of the supply pipe and adjusting the amount of supply of molten glass to the float bath. The opening of the supply pipe is disposed at a position lower than the level of the molten glass in the glass forming region. The supply pipe has a fan-shaped section which spreads in the left-right direction over a predetermined angle while extending toward the opening at the front end of the supply pipe, and the fan-shaped section has a cross-sectional shape flattened gradually toward the opening and is tilted upward.
Description
Technical field
The present invention relates to the device of a kind of float bath to float glass manufacturing device supply melten glass.
Background technology
Float glass is the melten glass supply unit that the melten glass made manufactured by region is transported to float glass manufacturing device by melten glass, and be supplied in the molten tin of float bath by the melten glass being transported to this melten glass supply unit, thus be configured as ribbon glass (glass ribbon).As the e Foerderanlage of this melten glass, the melten glass stream of the chute shape that usual use top is open, in patent documentation 1, disclose the melten glass made manufactured by region by melten glass and utilize service to be transported to the device of the melten glass supply unit of float bath glass manufacturing apparatus.
This melten glass e Foerderanlage, as shown in Figure 4, the service 18 of funnel-form enlarged portion 17 will be provided with in downstream side, make between region and the melten glass supply unit of float glass manufacturing device with the horizontal melten glass that is configured in, height 19 position on the lower of the melten glass in region is made than melten glass, utilize above-mentioned service 18 from making region transferring of molten glass, this melten glass is supplied to melten glass supply unit from the opening portion of above-mentioned funnel-form enlarged portion, therefore the melten glass amount utilizing sliding part 20 adjustment to supply is while make this melten glass flow down at feed path 21 and be directed in float bath 22.
In this melten glass e Foerderanlage, because melten glass is supplied to Cemented filling to melten glass supply unit, therefore, it is possible to avoid the melten glass when carrying to contact with ambient air.Thus, the radiation of the heat of the melten glass that the forming temperature as LCD glass substrate is higher can be prevented to scatter and disappear, or in the glass composition containing evaporable compositions such as such as boric acid, prevent this from easily evaporating the evaporation of composition, no matter melten glass can be made to be all keep very uniform state and supply to float bath in temperature or on composition, thus to obtain the glasswork of high-quality.
Patent documentation 1: Japanese Unexamined Patent Publication 2008-No. 539151 publications
Adopt the carrying method of above-mentioned melten glass, because melten glass is supplied to Cemented filling to melten glass supply unit, therefore, it is possible to prevent as described above melten glass in conveying with the contact of ambient air and the evaporation of glass ingredient, and then the excellent results supplying the melten glass transported etc. from the flat opening portion of funnel-form enlarged portion equably can be obtained.
But, in the method for patent documentation 1, due to service horizontal arrangement, if therefore utilize this service to connect the melten glass supply unit of melten glass making region and float glass manufacturing device, then have following problem.Namely, owing to making the melten glass supply unit place of region and float glass manufacturing device at melten glass, the liquid level of melten glass is retained as identical, therefore as the upstream extremity of this service of the taking mouth of melten glass, must with the height of the supply opening portion of the funnel-form enlarged portion of the downstream end of pipeline cooperatively, make region with melten glass and be connected.Therefore, the upstream extremity of service needs the higher position making region with melten glass to be connected, and the position namely making the skin section of the close melten glass in region with melten glass is connected.But compared with lower layer part, the ratio that is mixed into that melten glass makes the usual micro-bubble of skin section, foreign matter etc. of the melten glass in region is higher, can not obtain excellent melten glass under most cases.
Thus, in the method for patent documentation 1, the higher position as described above melten glass higher for the ratio that is mixed into of foam etc. being made the close skin section in region from melten glass is taken out, and the good melten glass being difficult to lower layer part melten glass being made region is transported in the melten glass supply unit of float glass manufacturing device.And, because service flatly configures, therefore, when having taken out the melten glass being mixed into foam etc., this melten glass is supplied to pipeline and is delivered directly in the melten glass supply unit of float glass manufacturing device, is supplied in the molten tin of float bath.Its result, is difficult to obtain the float glass of the high-quality in fact not containing foam etc.
In addition, in the service of horizontal arrangement as described above, due to melten glass to horizontal direction flowing and there is certain viscosity, therefore produce when having foam (gas) in the melten glass in flowing, be difficult to this foam (gas) is guided to the upper end of service and makes its emersion to the table side of melten glass and discharge.
Summary of the invention
The present invention makes in view of the above problems, its object is to the feedway that a kind of melten glass is provided, the feedway of this melten glass uply to configure obliquely by making above-mentioned service have towards melten glass supply unit, the opposing lower portions making the upstream extremity of service and melten glass make region is connected, take out the good melten glass of lower layer part, in addition, utilizing this service, the melten glass be removed being made region from melten glass is transported to the process in melten glass supply unit, the upper line tilt of service is utilized the foam be mixed in melten glass to be transferred to the upper end side of service and removes, can to the forming section supply of float glass not containing frothy good melten glass.
The present invention is to utilizing service to make the improvement of region to the molten glass supply apparatus of the melten glass supply unit transferring of molten glass of float glass manufacturing device from melten glass, scallop is formed in the downstream side of above-mentioned service, this scallop is expanded and the flattening gradually of its cross-sectional shape towards the opening portion on top in the lateral direction with predetermined angle, this scallop is tilted upward towards above-mentioned melten glass supply unit, thus reaches above-mentioned purpose.
That is, the invention provides the feedway of melten glass shown below.
(1) feature of the feedway of this melten glass is, the feedway of this melten glass has: service, and it is for making from glass the melten glass supply unit that region is transported to float bath by melten glass; Runner controls flashboard (tweel), it is located on the above-mentioned melten glass supply unit of above-mentioned float bath, relative with the opening portion of above-mentioned service, for regulating the melten glass feed rate supplied to above-mentioned float bath, the above-mentioned opening portion of above-mentioned service is configured on the position lower than the molten glass level in above-mentioned glass making region, above-mentioned service has the scallop expanded in the lateral direction with predetermined angle towards the above-mentioned opening portion on top, the cross-sectional shape of this scallop along with being close to above-mentioned opening portion and flattening gradually, and tilts upward.
(2) feedway of the melten glass described in above-mentioned 1, is characterized in that, the cross-sectional shape of the upstream extremity of above-mentioned scallop is circular or oval.
(3) feedway of the melten glass described in above-mentioned 1 or 2, is characterized in that, the cross-sectional shape of the downstream end of above-mentioned scallop is rectangle or ellipse.
(4) feedway of the melten glass according to any one of above-mentioned 1 ~ 3, is characterized in that,
Above-mentioned service has ingress pipe portion, and the upstream extremity of above-mentioned scallop is connected with this ingress pipe portion.
(5) feedway of the melten glass according to any one of above-mentioned 1 ~ 4, is characterized in that,
The downstream end portion of above-mentioned scallop arranges horizontal par.
(6) feedway of the melten glass according to any one of above-mentioned 1 ~ 5, is characterized in that,
The sectional area of the upstream extremity of above-mentioned scallop is 0.7 ~ 1.3 with the ratio of the sectional area of downstream end.
(7) feedway of the melten glass according to any one of above-mentioned 1 ~ 6, is characterized in that,
Above-mentioned opening portion and the above-mentioned runner gap controlled between flashboard of above-mentioned service are 0mm ~ 30mm.
(8) feedway of the melten glass according to any one of above-mentioned 1 ~ 7, is characterized in that,
The up angle of inclination of the upper end of above-mentioned scallop is 2 degree ~ 30 degree.
(9) feedway of the melten glass according to any one of above-mentioned 1 ~ 8, is characterized in that,
The expansion angle of the left and right directions of above-mentioned scallop is 10 degree ~ 45 degree.
(10) feedway of the melten glass according to any one of above-mentioned 1 ~ 9, is characterized in that,
Above-mentioned service utilizes electrified regulation to remain constant temp.
(11) feedway of the melten glass according to any one of above-mentioned 1 ~ 10, is characterized in that,
Above-mentioned service is made up of platinum or platinum alloy.
(12) feedway of the melten glass according to any one of above-mentioned 1 ~ 10, is characterized in that,
Above-mentioned service is made up of the material being coated with platinum or platinum alloy.
Adopt the present invention, the melten glass supply unit transferring of molten glass of region to float glass manufacturing device is made from melten glass owing to utilizing service, therefore identical with utilizing the molten glass supply apparatus in the past of service transferring of molten glass, melten glass in conveying can be remained the air-tight state without free surface, therefore, it is possible to prevent melten glass from contacting with ambient air and cooling, or the glass ingredient volatilization being easy to evaporate can be prevented, thus can with state supply melten glass uniform in temperature and on composition.
In addition, the downstream side of service is provided with scallop, this scallop is expanded and cross-sectional shape flattening gradually towards the opening portion on top in the lateral direction with predetermined angle, tilt upward towards opening portion owing to making this scallop, therefore, it is possible to the opposing lower portions making the upstream extremity of service only make region with this sloping portion and melten glass is connected, thereby, it is possible to the good melten glass that the ratio that is mixed into making the foam of region taking-up lower layer part etc. from melten glass is less.
And, utilizing this service, the melten glass be removed being made region from melten glass is transported to the process in melten glass supply unit, due to can make generation and the foam (gas) be mixed in melten glass while utilize buoyancy to float upward, while utilize the melten glass flowing through the up rake of scallop effectively to discharge to downstream side, therefore foam can not be trapped in scallop.Usually, the viscosity to the melten glass of float bath supply is 10
3.5dPas ~ 10
4about dPas, viscosity is higher, therefore resistance is formed with when foam floats, but employing the present invention, because scallop has upper line tilt, therefore fully utilizes the buoyancy making foam move and melten glass flowing in an inclined direction, foam can be directed effectively to the upper end side of scallop, and, because the downstream end of above-mentioned foam in scallop floats to the top layer of melten glass, therefore, it is possible to discharged this foam before melten glass is imported to float bath.
In addition, by service electrified regulation, melten glass can be remained predetermined temperature consistently.
Accompanying drawing explanation
Fig. 1 be the molten glass supply apparatus of one embodiment of the present invention analyse and observe explanatory view.
Fig. 2 is the vertical view of the service of Fig. 1.
Fig. 3 is the outline longitudinal section of the service of other embodiment of the present invention.
Fig. 4 is the stereographic map of molten glass supply apparatus in the past.
Embodiment
Hereinafter, with reference to the accompanying drawings of embodiments of the present invention.
Fig. 1 be the molten glass supply apparatus of one embodiment of the present invention analyse and observe explanatory view, Fig. 2 is the vertical view of the service of this molten glass supply apparatus.As shown in Figure 1, the melten glass obtained by melten glass making region 6, being made region 6 via service 1 from melten glass is transported to the melten glass supply unit 5 of float glass building mortion 7, and is configured as float glass 12 molten tin 11 that this melten glass supply unit 5 is transported to float bath 10.More particularly, the melten glass obtained by dissolving frit in region 6 is made at melten glass, make in region 6 limpid fully at melten glass further, and be cooled to obtain have the predetermined temperature of the viscosity of the shaping of applicable float glass after, utilize service 1 that this melten glass is made region 6 from melten glass to take out, and carry to this melten glass supply unit 5.Then, for the melten glass be transferred, utilize the runner be located on this melten glass supply unit 5 to control flashboard 8 and adjust melten glass amount, the melten glass that is transferred is flowed as the smooth and molten glass layers of constant thickness on tongue watt (the lip tile) 9 of melten glass supply unit 5, makes this molten glass layers overflow this tongue watts 9 and be supplied in the molten tin 11 of float bath 10.
In the present invention, it is implement the dissolving of frit, implement to dissolve the general name at the position of the limpid and cooling of melten glass that obtains etc. that melten glass makes region 6, and taking out melten glass is implement the operation after limpid, cooling as described above.
In the present invention, the opening portion 16 of above-mentioned service 1 is configured in and makes on the position of the molten glass level (liquid level of melten glass) 13 in region 6 lower than melten glass, and service 1 has scallop 3 in its downstream side.As shown in Figure 2, this scallop 3 makes the stream of melten glass from the narrower upstream extremity of width towards the opening portion 16 of top (downstream end), with predetermined angle θ
2expand in the lateral direction, and the cross-sectional shape of this scallop 3 is along with being close to opening portion 16 and flattening gradually, and as shown in Figure 1, this scallop 3 tilts upward along with being close to opening portion 16.Line tilt is gone up as described above by making this scallop 3, the height of the upstream extremity of scallop 3 is declined relative to melten glass supply unit 5, reduce the height of the upstream side of service 1 thus, therefore, it is possible to utilize service 1, take out melten glass from position relatively low compared with molten glass level 13 and make melten glass region 6.
In above-mentioned molten glass supply apparatus, be supplied to pipeline 1 be communicated with because melten glass supply unit 5 and melten glass make region 6, therefore the melten glass in melten glass supply unit 5, is maintained on the identical height of the molten glass level 13 that makes region 6 with melten glass as illustrated in fig. 1.Usually, glass makes the melten glass on the top layer of close the molten glass level 13 in region 6 compared with the melten glass than its layer on the lower, more containing foam etc., and evaporates due to a part of glass ingredient, therefore also instability on composition.Thus, if take out melten glass from the position near top layer as in the past, be easy to enter such problem such as foam in any case then all can produce.
In the present invention, can by making line tilt in scallop 3, reduce the upstream side of service 1 and make the extracting position of melten glass lower than situation in the past.Thus, as shown in Figure 1, melten glass can be taken out from the position reducing a from melten glass 13.In this case, the degree of depth (height of molten glass level 13) of the melten glass that the length of a mainly makes in region 6 according to melten glass decides, but as the size of a, is usually preferably about 250mm ~ 900mm.As long as be located within the scope of this by the extracting position of the melten glass of service 1, just can avoid the melten glass near molten glass level 13, the good melten glass that taking-up foam etc. are less.And, because the upstream side of service 1 declines, therefore, it is possible to form desired upper line tilt in scallop 3.Usually the viscosity to the melten glass of float bath supply is 10
3.5dPas ~ 10
4about dPas, this viscosity is higher, therefore when the foam (gas) that the melten glass in utilizing service 1 to carry produces floats, this viscosity forms resistance, but by line tilt can be formed in above-mentioned scallop 3, comprehensively make buoyancy and the melten glass mobilization in an inclined direction of foam action, therefore, it is possible to foam to be directed effectively to the upper end side of scallop 3, make this foam float to the top layer of melten glass and discharge.
Service 1 in the present invention is formed with the ingress pipe portion of the upstream side being located at this scallop 3 by above-mentioned scallop 3.The service 1 of this example is formed by scallop 3 being coupled together with the cylindrical duct 2 configured in the horizontal direction.Namely, the downstream end making the cylindrical duct 2 that region 6 is connected at upstream extremity and melten glass is connected scallop 3, utilize cylindrical duct 2 take out melten glass make region 6 melten glass and imported in scallop 3, from this scallop 3(service 1) opening portion 16 send to melten glass supply unit 5.Thus, the cross-sectional shape of the upstream extremity as the connection section be connected with cylindrical duct 2 of scallop 3 is circles corresponding with cylindrical duct 2, but from this upstream extremity, above-mentioned cross-sectional shape reduces height h gradually along with the flattening of scallop 3 and is changed to ellipticity, at opening portion 16 place, basic configuration becomes the laterally longer ellipse that long limit rectangle longer in the horizontal direction or major axis extend in the horizontal direction.Particularly based on following advantage, preferred cross-sections shape is rectangular opening portion: by making the width of transverse width (length on long limit) and melten glass supply unit 5 width of paper vertical direction (in FIG with) roughly consistent, can melten glass is roughly the same with the width of melten glass supply unit 5 as width, thickness in the horizontal direction the melten glass of constant flow to melten glass supply unit 5 and send.
If above-mentioned service 1 is formed by the ingress pipe portion that scallop 3 is such with the cylindrical duct 2 of this example as described above, then can obtain following advantage.That is, by changing the length in ingress pipe portion, the length of service 1 can be made simply consistent with the gap that melten glass makes between region 6 and melten glass supply unit 5.In addition, by by the configuration of ingress pipe portion in generally horizontal directions, region 6 can be made from melten glass and take out melten glass swimmingly, and in this ingress pipe portion, such as can set up whipping appts as required.In addition, in this example, use cylindrical duct 2 as above-mentioned ingress pipe portion, and configure this cylindrical duct in the horizontal direction, but also can be such as cross-sectional shape as ingress pipe portion be tubular body arranged inside that is oval or rectangle.In addition, ingress pipe portion not necessarily needs to configure in the horizontal direction, also on the flow direction of melten glass, can go up line tilt slightly.In addition, when being the ingress pipe portion of ellipse or rectangle when adopting cross-sectional shape, the cross-sectional shape of the upstream extremity be connected with this ingress pipe portion of scallop 3 is also consistent with ingress pipe portion, is formed as oval or rectangle.
In above-mentioned scallop 3, preferably, the sectional area of opening portion 16 is roughly the same with the sectional area as the upstream extremity with the connection section that cylindrical duct 2 is connected.Specifically, the sectional area (M of the upstream extremity of preferred scallop 3
1) with the sectional area (M of downstream end (opening portion 16)
2) ratio (M
1/ M
2) be 0.7 ~ 1.3.More preferably (M
1/ M
2) be 0.8 ~ 1.2, preferred (M further
1/ M
2) be 0.9 ~ 1.1, particularly preferably (M
1/ M
2) be 0.95 ~ 1.05.By the sectional area of the upstream extremity and downstream end that so set scallop 3, the melten glass sent from cylindrical duct 2 can be made stably to send to melten glass supply unit 5 without stagnantly, stably from opening portion 16.Then, even if cross-sectional shape is as described above such as from circle to rectangle or gradually change elliptically, in fact the sectional area on the direction orthogonal with the throughput direction of melten glass of scallop 3 does not change and and M
1, M
2identical.
In addition, preferably in the downstream end portion close with the opening portion 16 of scallop 3 of service 1, horizontal par 4 is set.Because scallop 3 has up angle of inclination, the melten glass therefore in scallop 3 is shown greatly this angle of inclination from opening portion 16 and is sent to melten glass supply unit 5.Therefore, when the downstream end office of scallop 3 is not provided with par 4, due to melten glass directly as molten glass flow upward from opening portion 16 to after melten glass supply unit 5 is sent, the runner described later collided being oppositely arranged with opening portion 16 controls on flashboard 8, controlled flashboard face by this runner to rebound and make direction become upward, therefore likely produce disorderly at the melten glass place at melten glass supply unit 5 place.But, if at scallop 3(service 1) opening portion on be provided with par 4, then utilize this par 4 that the flow direction of melten glass is changed into horizontal direction, and melten glass rectification can be made and send to melten glass supply unit 5, therefore, it is possible to do not produce disorder.In this case, in order to this rectification is reliably carried out in the exit in scallop 3, par 4 has constant length x, and preferably its cross-sectional shape and sectional area identical on the throughput direction of melten glass.Above-mentioned x according to the change such as size, angle of inclination of scallop 3, not circumscribed, but be preferably about about 50mm ~ 200mm.
In melten glass supply unit 5 of the present invention, preferred service 1(scallop 3) opening portion 16 relative to molten glass level 13, there is following relation.Height b from the upper surface of the opening portion 16 of scallop 3 to molten glass level 13 is preferably 5mm ~ 500mm.And then, be more preferably 5mm ~ 450mm.If b is less than 5mm, then the blank of surface heterogeneous medium can be mixed in the main flow of melten glass, if b exceedes about 500mm, is then difficult to the temperature of the melten glass maintaining this part, therefore not preferred.In addition, be preferably 100mm ~ 600mm from the lower surface of opening portion 16 upper surface of 9 (tongue watt) to the height c of molten glass level 13, be more preferably 350mm ~ 550mm.Control from relying on runner this point of flow control that flashboard carries out melten glass, preferred c ensures inferior limit 100mm, if c is more than 600mm, then is likely difficult to carry out relying on runner to control the flow control of the melten glass that flashboard carries out.
Then, the up angle of inclination of scallop 3 and the expansion angle of left and right directions are described.In the present invention, according to the tilt angle theta of the upper end 14 of scallop 3
1come the up angle of inclination of regulation scallop 3.At this, the upper end 14 of scallop 3 is top end parts of the melten glass stream of the scallop 3 of the medullary ray 15 of the throughput direction being positioned at melten glass as illustrated in fig. 2 in the vertical view of scallop 3, when being provided with par 4 as in this example in the downstream end portion of scallop 3, the upper end 14 of scallop 3 is the top end parts in the region except this par 4 of melten glass stream.In addition, as the tilt angle theta of the upper surface 14 according to scallop 3
1carry out the reason at the up angle of inclination of regulation scallop 3, be listed below: because the height h of scallop 3 successively decreases on the throughput direction of melten glass, therefore the angle of inclination of scallop 3 is different from lower surface place at upper surface, need some benchmark selected, and when sending melten glass to melten glass supply unit 5, the effect of the upper surface of the upper limit of restriction molten glass flow is larger.
In the present invention, the tilt angle theta of the upper end 14 of scallop 3
1be preferably 2 degree ~ 30 degree relative to horizontal direction, more preferably in 2 degree ~ 20 degree, be preferably further 2 degree ~ 7 degree.If θ
1be less than 2 degree, then owing to not making the position of the upstream extremity of scallop 3 (connection section be connected with cylindrical duct 2) decline fully relative to melten glass supply unit 5 and molten glass level 13, therefore likely can not avoid the melten glass of more and unstable on composition due to the evaporation of the glass ingredient skin section such as foam and take out good melten glass.In addition, if θ
1more than 30 degree, then the extracting position of the melten glass of service 1 is too low, not only the suitable position that melten glass makes region from melten glass cannot be taken out, and forms inclination sharply due to service 1, is therefore difficult to transferring of molten glass swimmingly.
On the other hand, the expansion angle θ of the left and right directions of scallop 3
2be preferably 10 degree ~ 45 degree.If θ
2be less than 10 degree, then especially as this example, when the upstream extremity of scallop 3 is circular, relatively little due to the diameter of the transverse width corresponding circle bobbin 2 of this upstream extremity, therefore can not realize scallop 3(service 1 fully) the expansion of opening portion 16, be difficult to make the transverse width of opening portion 16 meet the transverse width of melten glass supply unit 5.In addition, if θ
2be greater than 45 degree, then the melten glass owing to sending from cylindrical duct 2 is expanded in the horizontal sharp at the upstream extremity of scallop 3, and it is slow to produce in the molten glass flow at the two ends therefore changed greatly in direction, cannot transferring of molten glass equably.From this point, more preferably θ
2it is 15 degree ~ 20 degree.
In the present invention, the supply material of pipeline 1, preferred thermotolerance and for the good platinum of erosion resistance of melten glass or platinum alloy (such as platinum-rhodium alloy), or by material that platinum or platinum alloy cover.Platinum or platinum alloy have excellent actual effect in this kind of purposes, are particularly suitable for the melten glass that forming temperature as LCD glass substrate is higher.As the material covered by platinum or platinum alloy, for example there are the material covering the internal surface of the heat-resistant components such as brick with platinum or platinum alloy.
In addition, although not shown, but preferably utilize energising to heat equably in the ingress pipe portion of the service 1 formed by these materials and/or scallop.Electrified regulation is by platinum or platinum alloy direct-electrifying or carry out being energized to this material when the material covered by platinum or platinum alloy is conductive material and carry out.To make in process that the high temperature molten glass taken out in region 6 is transported in melten glass supply unit 5 from melten glass in service 1, because this melten glass and ambient air are fully isolated, therefore, it is possible to prevent the cooling caused with the contact of air, and utilize the electrified regulation of above-mentioned service 1 in fact to remain uniform temperature, be transported to melten glass supply unit 5 with the temperature being suitable for being shaped.
In the present invention, runner controls flashboard 8 and service 1(scallop 3) opening portion 16 be located at face to face on melten glass supply unit 5.It is by by facing for the opening portion 16 of heat-resistant component and scallop 3 and liftably arrange and form that this runner controls flashboard 8, this heat-resistant component has the width roughly the same with the width of the transverse width of the opening portion 16 of scallop 3 and melten glass supply unit 5 (being the width vertical with paper in FIG), this runner controls flashboard 8 can change height by moving up and down, thus regulate the melten glass amount supplied to float bath 10, in addition, by controlling the melten glass carried to melten glass supply unit 5 from top, the molten glass layers of thickness thin layer constant is in the horizontal it can be used as to supply to float bath 10.In addition, by dropping to its lowermost position, the supply of the melten glass to float bath can be stopped.
When above-mentioned runner is controlled flashboard 8 and service 1(scallop 3) opening portion 16 facing setting, the gap d that this runner controls between flashboard 8 and opening portion 16 is preferably 0mm ~ 30mm, is more preferably 0mm ~ 20mm.At this, gap d is that 0mm refers to that runner being controlled the opening portion 16 that flashboard 8 is positioned as close to scallop 3 is arranged.The melten glass be transported to hermetically in melten glass supply unit 5 in order to avoid being supplied to pipeline 1 contacts with ambient air at this melten glass supply unit 5 place, and preferred gap d is little as much as possible.Because the melten glass of melten glass supply unit 5 forms free surface at this gap d place, if therefore this gap d is comparatively large, then the area contacted with ambient air increases, thus is cooled or causes the evaporation of a part of glass ingredient.If gap d becomes be greater than 30mm, then above-mentioned unfavorable condition becomes remarkable, therefore not preferred.
In one embodiment of the present invention, above-mentioned runner control flashboard 8 can be formed by covering with platinum or platinum alloy with the major portion of the heat-resistant component making such as silica glass pottery (fused silica).Then, by carrying out electrified regulation to this platinum or platinum alloy in the same manner as above-mentioned service 1, the melten glass being transported to melten glass supply unit 5 is remained predetermined temperature.The electrified regulation that this runner controls flashboard 8 and service 1 can suitably carry out in a known manner.
Above, describe one embodiment of the present invention, but the present invention is not limited thereto.Fig. 3 is the outline longitudinal section of other embodiment representing scallop 3 of the present invention.This scallop 3 towards opening portion 16, the basic body of line tilt is identical with the scallop 3 of Fig. 1 on the whole, but as shown in Figure 3, it is different for a little convexly bending this point in upside at the stream of melten glass on the throughput direction of melten glass, certainly, the upper end 14 of scallop 3 bends similarly.Even if scallop 3 bends as described above, because basic body is identical with the scallop 3 of Fig. 1, therefore, it is possible to obtain identical function.In addition, can by the tilt angle theta of the upper end 14 of scallop 3 bending as described above
1be set as the angle (that is, link the straight line angle relative to horizontal direction at the two ends of curved part) of funnel-form enlarged portion 17 relative to horizontal direction.
Although in detail and describe the application with reference to specific embodiment, clearly known for those skilled in the art, various change, correction can be applied when not departing from thought of the present invention and scope.
The application to be willing to (Patent 2009-261362) based on the Japanese Patent of applying on November 16th, 2009, its content is enrolled in the application as reference at this.
utilizability in industry
The present invention can be used as the molten glass supply apparatus of float glass manufacturing device, be particularly suitable for higher to float bath supply forming temperature, containing the melten glass being easy to the glass ingredient evaporated.
description of reference numerals
1,18, service; 2, cylindrical duct; 3, scallop; 4, par; 5, melten glass supply unit; 6, melten glass makes region; 7, float glass building mortion; 8, runner controls flashboard; 9, tongue watt; 10,22, float bath; 11, molten tin; 12, float glass; 13, molten glass level; 14, upper end; 15, medullary ray; 16, opening portion; 17, funnel-form enlarged portion.
Claims (12)
1. a feedway for melten glass, is characterized in that,
The feedway of this melten glass has:
Service, it is for making from glass the melten glass supply unit that region is delivered to float bath by melten glass;
Runner controls flashboard, and it is located at the above-mentioned melten glass supply unit place of above-mentioned float bath, relative with the opening portion of above-mentioned service, for regulating the melten glass feed rate to above-mentioned float bath,
The above-mentioned opening portion of above-mentioned service is configured on the position lower than the molten glass level in above-mentioned glass making region,
Above-mentioned service has the scallop expanded in the lateral direction with predetermined angle towards the above-mentioned opening portion on top, the cross-sectional shape of this scallop is along with being close to above-mentioned opening portion and flattening gradually, and the upper surface of this cross-sectional shape and lower surface tilt upward.
2. the feedway of melten glass according to claim 1, is characterized in that,
The cross-sectional shape of the upstream extremity of above-mentioned scallop is circular or oval.
3. the feedway of melten glass according to claim 1 and 2, is characterized in that,
The cross-sectional shape of the downstream end of above-mentioned scallop is rectangle or ellipse.
4. the feedway of melten glass according to claim 1 and 2, is characterized in that,
Above-mentioned service has ingress pipe portion, and the upstream extremity of above-mentioned scallop is connected with this ingress pipe portion.
5. the feedway of melten glass according to claim 1 and 2, is characterized in that,
Horizontal par is arranged with at the downstream end of above-mentioned scallop.
6. the feedway of melten glass according to claim 1 and 2, is characterized in that,
The sectional area of the upstream extremity of above-mentioned scallop is 0.7 ~ 1.3 with the ratio of the sectional area of downstream end.
7. the feedway of melten glass according to claim 1 and 2, is characterized in that,
The gap that the above-mentioned opening portion of above-mentioned service and above-mentioned runner control flashboard is 0mm ~ 30mm.
8. the feedway of melten glass according to claim 1 and 2, is characterized in that,
The up angle of inclination of the upper end of above-mentioned scallop is 2 degree ~ 30 degree.
9. the feedway of melten glass according to claim 1 and 2, is characterized in that,
The expansion angle of the left and right directions of above-mentioned scallop is 10 degree ~ 45 degree.
10. the feedway of melten glass according to claim 1 and 2, is characterized in that,
Above-mentioned service utilizes electrified regulation to remain constant temp.
The feedway of 11. melten glass according to claim 1 and 2, is characterized in that,
Above-mentioned service is made up of platinum or platinum alloy.
The feedway of 12. melten glass according to claim 1 and 2, is characterized in that,
Above-mentioned service is made up of the material being coated with platinum or platinum alloy.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009-261362 | 2009-11-16 | ||
| JP2009261362 | 2009-11-16 | ||
| PCT/JP2010/070388 WO2011059096A1 (en) | 2009-11-16 | 2010-11-16 | Molten glass supply device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102612498A CN102612498A (en) | 2012-07-25 |
| CN102612498B true CN102612498B (en) | 2015-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201080051919.3A Active CN102612498B (en) | 2009-11-16 | 2010-11-16 | Molten glass supply device |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP5660046B2 (en) |
| KR (1) | KR101215733B1 (en) |
| CN (1) | CN102612498B (en) |
| TW (1) | TWI454436B (en) |
| WO (1) | WO2011059096A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011136148A1 (en) * | 2010-04-28 | 2011-11-03 | 旭硝子株式会社 | Molten glass supply device |
| KR101583372B1 (en) | 2013-09-03 | 2016-01-07 | 주식회사 엘지화학 | Disparate glass removing apparatus and glass manufacturing apparatus including the same |
| KR101796818B1 (en) * | 2014-07-23 | 2017-12-04 | 주식회사 엘지화학 | Transfer apparatus for glass melt |
| TWI530464B (en) * | 2014-12-31 | 2016-04-21 | Eglass Taiwan Ltd | Molten glass guide |
| JP2016216323A (en) * | 2015-05-26 | 2016-12-22 | 旭硝子株式会社 | Molten glass supply apparatus |
| JP2017014059A (en) * | 2015-06-30 | 2017-01-19 | 旭硝子株式会社 | Molten glass supply apparatus, production apparatus of glass sheet, and production methods of glass sheet |
| CN105060681B (en) * | 2015-08-06 | 2017-05-31 | 蚌埠玻璃工业设计研究院 | A kind of flow liquid road flashboard sealing device |
| JP6740746B2 (en) * | 2016-06-22 | 2020-08-19 | 日本電気硝子株式会社 | Glass plate manufacturing method and glass plate manufacturing apparatus |
| KR102417853B1 (en) * | 2017-12-08 | 2022-07-06 | 코닝 인코포레이티드 | Glass manufacturing apparatus and glass manufacturing method |
| CN110981167B (en) * | 2019-11-23 | 2022-09-27 | 石家庄旭新光电科技有限公司 | Two platinum passageway glass liquid of inclination type are handled conveying system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4728352A (en) * | 1986-10-02 | 1988-03-01 | Ppg Industries, Inc. | Glass batch feed arrangement with directional adjustability |
| CN2153025Y (en) * | 1992-12-29 | 1994-01-12 | 秦皇岛玻璃工业设计研究院 | Improvement of runner heating structure for float glass furnace |
| JP2006028014A (en) * | 2004-07-13 | 2006-02-02 | Schott Ag | Electric earthing device of float glass manufacturing apparatus |
| TW200621662A (en) * | 2004-12-28 | 2006-07-01 | Nippon Electric Glass Co | Apparatus of forming plate glass and method of forming plate glass |
| CN1948194A (en) * | 2006-11-01 | 2007-04-18 | 河南安彩高科股份有限公司 | Equipment and method used for improving glass quality |
| CN1986465A (en) * | 2006-12-11 | 2007-06-27 | 河南安彩高科股份有限公司 | Glass material feeding method and device for controlling and regulating glass flow rate |
| JP2008539151A (en) * | 2005-04-26 | 2008-11-13 | ボットガー，ディーター | Apparatus for transferring molten glass onto a float bath |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3224243B2 (en) | 1990-09-26 | 2001-10-29 | 日本板硝子株式会社 | Float bath ribbon width control method and apparatus |
| JP4900773B2 (en) * | 2005-11-25 | 2012-03-21 | 旭硝子株式会社 | Float glass manufacturing apparatus and method |
| JP2009007223A (en) * | 2007-06-29 | 2009-01-15 | Ohara Inc | Method and apparatus for producing glass formed article |
| WO2009014028A1 (en) * | 2007-07-23 | 2009-01-29 | Asahi Glass Co., Ltd. | Float glass making process and float glass making equipment |
-
2010
- 2010-11-16 JP JP2011540579A patent/JP5660046B2/en active Active
- 2010-11-16 KR KR1020127012051A patent/KR101215733B1/en active IP Right Grant
- 2010-11-16 CN CN201080051919.3A patent/CN102612498B/en active Active
- 2010-11-16 TW TW099139414A patent/TWI454436B/en active
- 2010-11-16 WO PCT/JP2010/070388 patent/WO2011059096A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4728352A (en) * | 1986-10-02 | 1988-03-01 | Ppg Industries, Inc. | Glass batch feed arrangement with directional adjustability |
| CN2153025Y (en) * | 1992-12-29 | 1994-01-12 | 秦皇岛玻璃工业设计研究院 | Improvement of runner heating structure for float glass furnace |
| JP2006028014A (en) * | 2004-07-13 | 2006-02-02 | Schott Ag | Electric earthing device of float glass manufacturing apparatus |
| TW200621662A (en) * | 2004-12-28 | 2006-07-01 | Nippon Electric Glass Co | Apparatus of forming plate glass and method of forming plate glass |
| JP2008539151A (en) * | 2005-04-26 | 2008-11-13 | ボットガー，ディーター | Apparatus for transferring molten glass onto a float bath |
| CN1948194A (en) * | 2006-11-01 | 2007-04-18 | 河南安彩高科股份有限公司 | Equipment and method used for improving glass quality |
| CN1986465A (en) * | 2006-12-11 | 2007-06-27 | 河南安彩高科股份有限公司 | Glass material feeding method and device for controlling and regulating glass flow rate |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5660046B2 (en) | 2015-01-28 |
| WO2011059096A1 (en) | 2011-05-19 |
| TWI454436B (en) | 2014-10-01 |
| KR101215733B1 (en) | 2012-12-26 |
| CN102612498A (en) | 2012-07-25 |
| JPWO2011059096A1 (en) | 2013-04-04 |
| KR20120057662A (en) | 2012-06-05 |
| TW201124352A (en) | 2011-07-16 |
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Address after: Tokyo, Japan, Japan Patentee after: AGC Corporation Address before: Tokyo, Japan, Japan Patentee before: Asahi Glass Co., Ltd. |