CN106186642B - Molten glass supply apparatus - Google Patents
Molten glass supply apparatus Download PDFInfo
- Publication number
- CN106186642B CN106186642B CN201610357701.XA CN201610357701A CN106186642B CN 106186642 B CN106186642 B CN 106186642B CN 201610357701 A CN201610357701 A CN 201610357701A CN 106186642 B CN106186642 B CN 106186642B
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- China
- Prior art keywords
- glass
- melten glass
- fan shape
- shape portion
- supply apparatus
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Classifications
-
- 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
- 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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- 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
- C03B18/00—Shaping glass in contact with the surface of a liquid
- C03B18/02—Forming sheets
- C03B18/16—Construction of the float tank; Use of material for the float tank; Coating or protection of the tank wall
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Compositions (AREA)
- Furnace Charging Or Discharging (AREA)
Abstract
The present invention provides a kind of heterogeneousization for inhibiting melten glass and the molten glass supply apparatus that can supply good melten glass to float glass forming device.The present invention is characterized in that, the opening portion of supply pipe (1) configures the position low in the molten glass level (13) than glass furnace (6), supply pipe (1) has the fan shape portion (3) that the opening portion (16) towards downstream is extended in left-right direction with defined angle (θ 3), the cross sectional shape in fan shape portion (3) towards opening portion (16) and gradually flattening, the tilt angle (θ 1) of the upper end (14) in fan shape portion (3) is relative to horizontal direction -5~+2 degree, the tilt angle (θ 2) of the lower end (15) in fan shape portion (3) is relative to horizontal direction+10~+30 degree, in the case where the width of opening portion (16) is set as W, length L of the fan shape portion (3) on the transfer direction of melten glass is 0.5W~1.5 W.
Description
Technical field
The present invention relates to the devices to the molten metal bath of float glass manufacturing device supply melten glass.
Background technique
In float glass process, pipe is carried by the melten glass manufactured in glass furnace to float glass system using melten glass
The melten glass supply unit transfer for making device, by the way that the melten glass for being transplanted on the melten glass supply unit is supplied to molten metal
Glass tape is shaped in the molten tin of slot.
Patent Document 1 discloses using melten glass carry pipe by the melten glass manufactured in glass furnace to
Supply pipe transfer, and transferred the melten glass to the melten glass supply unit of float glass manufacturing device using the supply pipe
Device.
As shown in figure 3, constitute melten glass transfer device supply pipe 101 have towards melten glass supply unit 105 with
The fan shape portion 103 that defined angle extends in the lateral direction is configured in the part with up- wards inclination.Exist as a result,
Molten glass level 113 relative to glass furnace 106 is configured to compare and connect on the melten glass carrying pipe 120 of lower part
The upstream end of supply pipe 101 can take out the good melten glass of lower layer part.Moreover, melten glass transfer device is utilizing
Supply pipe 101 carries pipe 120 to during the transfer melten glass of melten glass supply unit 105 from melten glass, utilizes supply pipe 101
Up- wards inclination keep the bubble being mixed into melten glass mobile to the upper end side of supply pipe 101 and remove it, so as to
It will be supplied without bladdery good melten glass to float glass forming device 107.
[citation]
[patent document]
[patent document 1] International Publication No. 2011/059096
[subject to be solved by the invention]
However, in the method for patent document 1, make to improve output the supply amount of melten glass increase or
In order to which the equipment for transferring the melten glass carrying pipe 120 of melten glass is saved from damage and the temperature of melten glass is reduced to melten glass
The increased situation of the pressure loss under, between the upper end 114 in fan shape portion 103 and melten glass generate gas-phase space G.Example
Such as, it in the glass composition for holding evaporable ingredient containing boric acid etc., is melted since the ingredient is evaporated from melten glass surface section
Melt glass and generate heterogeneousization, the defects of finally obtained float glass may generate brush line (striped).
Summary of the invention
The present invention makes in view of the above subject, its purpose is to provide it is a kind of inhibit melten glass heterogeneousization and can
The molten glass supply apparatus that good melten glass is supplied to float glass forming device.
[solution for solving the problem]
The present invention provides a kind of molten glass supply apparatus, which is characterized in that has: supply pipe, is used for melten glass
Pipe is carried from melten glass to transfer to the melten glass supply unit of molten metal bath；And gate, the opening portion phase with the supply pipe
The melten glass supply unit of the molten metal bath is set over the ground, and for adjusting the melten glass to the molten metal bath
The opening portion of supply amount, the supply pipe configures the position low in the molten glass level than glass furnace, the confession
To the fan shape portion that there is pipe the opening portion towards downstream to be extended in the lateral direction with defined angle, the fan
The cross sectional shape of shape shape portion towards the opening portion and gradually flattening, the tilt angle phase of the upper end in the fan shape portion
It is -5~+2 degree for horizontal direction, the tilt angle of the lower end in the fan shape portion is+10~+30 relative to horizontal direction
Degree, in the case where the width of the opening portion is set as W, the fan shape portion is on the transfer direction of the melten glass
Length be 0.5W~1.5W.
Moreover, the present invention provides a kind of float glass manufacturing device including above-mentioned molten glass supply apparatus.
In addition, the present invention provides a kind of float glass making process, above-mentioned float glass manufacturing device has been used, comprising:
The step of obtaining melten glass, is heated to glass raw material；And the melten glass is formed and slow cooling and floated
The step of method glass.
[invention effect]
In accordance with the invention it is possible to inhibit heterogeneousization of melten glass, and good melten glass is shaped to float glass
Unit feeding.
Detailed description of the invention
Fig. 1 is the section view explanatory diagram of the molten glass supply apparatus of one embodiment of the present invention.
Fig. 2 (A) is the top view of the supply pipe of Fig. 1, and Fig. 2 (B) is the side view observed on the right side of Fig. 2 (A).
Fig. 3 is the section view explanatory diagram of previous molten glass supply apparatus.
[label declaration]
1,101 supply pipe
2 cylindrical tubes
3,103 fan shape portion
4 flat parts
5,105 melten glass supply unit
6,106 glass furnace
7,107 float glass forming device
8 gates
9 lip tiles
10 molten metal baths
11 molten tins
12 glass tapes
13,113 molten glass level
14,114 upper end
15 lower ends
16 opening portions
17 center lines
20,120 melten glass carry pipe
G gas-phase space
Specific embodiment
Hereinafter, illustrating mode for carrying out the present invention, but the invention is not limited to following implementations referring to attached drawing
Mode does not depart from the scope of the present invention and various modifications and displacement can be added to embodiment disclosed below.
Fig. 1 is the section view explanatory diagram of the molten glass supply apparatus of one embodiment of the present invention, and Fig. 2 (A) is the confession of Fig. 1
To the top view of pipe, Fig. 2 (B) is the side view observed on the right side of Fig. 2 (A).As shown in Figure 1, being obtained by glass furnace 6
And the melten glass that pipe 20 is transferred is carried from melten glass, pipe 20 is carried to float glass forming from melten glass by supply pipe 1
The melten glass supply unit 5 of device 7 is transferred, and is formed from the molten tin 11 that melten glass supply unit 5 is supplied to molten metal bath 10
Shape is the glass tape 12 of band plate-like.More specifically, melten glass obtained from melting glass raw material
And then pipe 20 is carried by melten glass and is fully clarified, and is cooled to obtain being suitable for the regulation of the viscosity of the forming of glass
Temperature after, using supply pipe 1 from melten glass carry pipe 20 take out and to melten glass supply unit 5 transfer.Also, it is moved
The melten glass sent utilizes the gate 8 set on melten glass supply unit 5 to adjust melten glass amount, certain as flat and thickness
Molten glass layers and flow on the lip tile 9 of melten glass supply unit 5, be supplied to molten metal bath 10 in 9 overflow of lip tile
In molten tin 11.
In the present embodiment, although it is not shown, still melten glass carrying pipe 20 can set up the clarification of melten glass
Device, agitating device.
In the present embodiment, the configuration of opening portion 16 of supply pipe 1 is (molten in the molten glass level than glass furnace 6
Melt the liquid level of glass) 13 low positions, supply pipe 1 is in side downstream with fan shape portion 3.As shown in Fig. 2 (A), the sector
Shape portion 3 is being controlled from the opening portion 16 that the flow path of melten glass is narrow upstream end towards downstream with defined angle, θ 3
It is extended on direction (up and down direction of Fig. 2 (A)), and its cross sectional shape is towards the gradually flattening of opening portion 16.Moreover, fan shape
Portion 3 as shown in Figure 1 towards opening portion 16 and upper end 14 slightly tilts downwards, lower end 15 significantly tilts upwards.In this way
The case where inclination, the size with the tilt angle upwards of the tilt angle downwards and lower end of upper end is same degree phase
Than declining the height of the upstream side of supply pipe 1, therefore supply pipe 1 can be utilized from the melten glass liquid than glass furnace 6
Take out melten glass in the low position in face 13.It should be noted that upper end 14 slightly tilts downwards in Fig. 1, but lower end 15
As long as tilt angle upwards is sufficiently big compared with the tilt angle of upper end 14, can also making upper end 14, side inclines slightly up
Tiltedly.
In general, the melten glass on the surface layer close to molten glass level 13 of glass furnace 6 leans on the molten of lower layer with than it
Melt glass phase ratio, it is containing more bubble etc. and also unstable on ingredient due to the evaporation of a part of glass ingredient.Therefore,
If taking out melten glass from the position close to surface layer, bubble etc. can be all led to the problem of anyway and is easily accessible.
In the present embodiment, as shown in Figure 1, can will be melted from the position of out height a lower than molten glass level 13
Glass is carried pipe 20 to melten glass and is transferred.In this case, height a mainly passes through the melten glass in glass furnace 6
Depth (height of molten glass level 13) determines, it is preferred that being 200~1000mm.Height a be more preferably 250mm with
On.Moreover, height a is more preferably 950mm or less.If making height a aforementioned range, it is attached that molten glass level 13 can be avoided
Close melten glass and few good melten glass such as take out bubble.Moreover, the upper table of the opening portion 16 from fan shape portion 3
The height b of face to molten glass level 13 is preferably 5~500mm.Height b is more preferably 450mm or less.If height b be 5mm with
On, then the blank that heterogeneousization has occurred on surface can be prevented to be mixed into the mainstream of melten glass.Moreover, if height b is about 500mm
Hereinafter, then can easily maintain the temperature of the melten glass of the part.The melten glass usually supplied to molten metal bath glues
Degree is 103.5~104DPas degree and it is higher, therefore by supply pipe 1 transfer in melten glass generate bubble (gas)
Become resistance when floating, but by significantly forming the inclination upwards of the lower end 15 in fan shape portion 3, acts on gas
The mobilization of the inclined direction of the buoyancy and melten glass of bubble is total to be calculated, therefore can be by bubble effectively to fan shape
14 side of upper end in portion 3 guides and floats and release to the surface layer of melten glass.
The supply pipe 1 of present embodiment by fan shape portion 3 and the upstream side that fan shape portion 3 is set importing pipe portion
It is formed.Fan shape portion 3 connect with the cylindrical tube 2 configured in the horizontal direction and is formed by the supply pipe 1 of this example.That is, with it is molten
Melt the upstream end for connecting fan shape portion 3 on the downstream of the cylindrical tube 2 of the downstream connection of glass handling pipe 20, utilizes cylinder
Pipe 2 takes out melten glass and carries the melten glass of pipe 20 and be directed into fan shape portion 3, from fan shape portion 3 (supply pipe 1)
It is sent out to melten glass supply unit 5 opening portion 16.Therefore, as the upper of the fan shape portion 3 for the interconnecting piece being connect with cylindrical tube 2
The cross sectional shape at trip end corresponds to cylindrical tube 2 and is circle, but the cross sectional shape before from there is along with fan shape
The flattening in portion 3 and height gradually decrease and change as ellipticity, in opening portion 16, in long in the horizontal direction rectangular of long side
The horizontally long elliptical shape that shape or long axis extend in the horizontal direction.Especially cross sectional shape is that the opening portion of oblong-shaped is logical
Crossing makes the width of width (length of long side) and melten glass supply unit 5 (entrance of float glass forming device 7) (in Fig. 1
The width in the direction vertical with paper) it is substantially uniform, can be substantially certain in the horizontal direction using melten glass as thickness
Melten glass stream and it is preferred on the point sent out.The width W of opening portion 16 is preferably 300~1200mm.Width W is more preferably
400mm or more, further preferably 500mm or more.Moreover, width W is more preferably 1050mm hereinafter, further preferably
900mm or less.Moreover, the up and down direction size H in the width direction center of opening portion 16 is preferably 30~300mm.Size H is more excellent
It is selected as 50mm or more, further preferably 70mm or more.Moreover, size H is more preferably 250mm hereinafter, further preferably
200mm or less.
If forming supply pipe 1 by the such pipe portion that imports of the cylindrical tube 2 of fan shape portion 3 and this example in this way, can obtain
To following advantage.That is, can easily make the length of supply pipe 1 correspond to melting glass by the length for changing importing pipe portion
Glass carries the interval between the downstream and melten glass supply unit 5 of pipe 20.Moreover, by the way that pipe portion will be imported substantially along level side
To being extended, pipe 20 can be carried from melten glass and swimmingly take out melten glass.It should be noted that in this example, making
Use cylindrical tube 2 as above-mentioned importing pipe portion, it, can also by the horizontally extending setting of the cylindrical tube, but as pipe portion is imported
To be such as cross sectional shape as elliptical shape or the tubular body of rectangular shape.It may not have to be in the horizontal direction moreover, importing pipe portion
It is extended, can also slightly can also decline inclination along the flow direction of melten glass slightly up- wards inclination.It needs to illustrate
It is, in the case where cross sectional shape is the importing pipe portion of elliptical shape or rectangular shape, the fan-shaped shape that is connect with the importing pipe portion
The cross sectional shape of the upstream end in shape portion 3, which also corresponds to, to be imported pipe portion and becomes elliptical shape or rectangular shape.
In fan shape portion 3, the area of section of opening portion 16 is preferably and as the upper of the interconnecting piece connecting with cylindrical tube 2
The area of section for swimming end is roughly the same.Specifically, the area of section (M1) of the upstream end in fan shape portion 3 (is opened with downstream
Oral area 16) the ratio (M1/M2) of area of section (M2) be preferably 0.7~1.3.It is more preferably 0.8 or more than (M1/M2), into one
Step preferably 0.9 or more, particularly preferably 0.95 or more.Moreover, being more preferably 1.2 hereinafter, further preferably than (M1/M2)
1.1 hereinafter, particularly preferably 1.05 or less.The upstream end in fan shape portion 3 and the area of section of downstream are set in this way,
The melten glass sent from cylindrical tube 2 can be made not stagnate and sent from 16 all-the-time stable of opening portion to melten glass supply unit 5
Out.Even if also, the area of section on the direction orthogonal with the transfer direction of melten glass in fan shape portion 3 is preferably section
Shape is for example gradually varied to oblong-shaped or elliptical shape from round as described above, substantially also identical as M1, M2.
Next, illustrating the up- wards inclination and left and right directions of the decline inclination of the upper end 14 in fan shape portion 3, lower end 15
Extension.In the present invention, by θ 1 come the tilt angle of the upper end 14 in regulation fan shape portion 3, by θ 2 come regulation lower end
15 tilt angle, and by θ 3 come the expanded- angle of regulation left and right directions.Here, the upper end 14 in fan shape portion 3 is such as Fig. 2
(A) the shown fan shape portion 3 locating for the center line 17 of the transfer direction of melten glass under the overlook view in fan shape portion 3
Melten glass flow path top part, as in this example fan shape portion 3 downstream end portion be arranged flat part 4 the case where
Under be melten glass flow path in region other than flat part 4 top part.It should be noted that as by θ 1 come
The tilt angle of the upper end 14 in regulation fan shape portion 3 and by θ 2 come regulation lower end 15 tilt angle the reasons why, can enumerate
The effect of the upper end 14 limited when sending out melten glass to melten glass supply unit 5 upper limit of melten glass stream is big
The case where, by bubble effectively to 14 side of upper end in fan shape portion 3 guide and so that it is floated and is put to the surface layer of melten glass
Out the case where etc..
In the present invention, the tilt angle theta 1 of the upper end 14 in fan shape portion 3 is relative to horizontal direction -5~+2 degree.?
This, the positive expression upper end 14 of angle, θ 1 tilts upwards, and the negative expression upper end 14 of angle, θ 1 tilts downwards.Angle, θ 1 is preferred
It is -2 Dus or more, more preferably -1 Du or more.Moreover, angle, θ 1 is preferably+1 degree hereinafter, more preferably+0.5 degree is hereinafter, into one
Below step preferably -0.5 degree.If angle, θ 1 is -5 Dus or more, the bubble generated by the melten glass in the transfer of supply pipe 1
Resistance when (gas) floats reduces, can by bubble effectively to 14 side of upper end in fan shape portion 3 guide and to melting glass
The surface layer of glass floats and releases.Moreover, if angle, θ 1 be+2 degree hereinafter, if in the upper end 14 in fan shape portion 3 and melten glass
Between be difficult to generate gas-phase space, can prevent due to boric acid component etc. from melten glass surface section evaporation and melten glass occur
Heterogeneousization and on finally obtained float glass generate brush line (striped) the defects of the case where.Moreover, the steaming can be prevented
Hair ingredient and constitute supply pipe 1 platinum reactant to melten glass fall and float glass generate foreign matter defect the case where.
Moreover, the case where capable of preventing the intensity for the platinum for constituting supply pipe 1 due to evaporation ingredient and the reacting for platinum from declining.
Moreover, the tilt angle theta 2 of the lower end 15 in fan shape portion 3 is relative to horizontal direction+10~+30 degree.Here,
The positive expression upper end 14 of angle, θ 2 tilts upwards.Angle, θ 2 is preferably+15 Dus or more.Moreover, angle, θ 2 be preferably+25 degree with
Under.If angle, θ 2 is+10 Dus or more, the position of the upstream end (interconnecting piece connecting with cylindrical tube 2) in fan shape portion 3 can be made
It sets and is fully declined relative to melten glass supply unit 5 and molten glass level 13, therefore bubble can be avoided etc. and is more and due to glass
The evaporation of glass ingredient and the melten glass of surface section also unstable on ingredient and take out good melten glass.Moreover, if
Angle, θ 2 is+30 degree hereinafter, the extracting position of the melten glass then based on supply pipe 1 will not become low land removes from melten glass
Melten glass is taken out in the position appropriate for transporting pipe 20, so as to swimmingly transfer melten glass.
On the other hand, the expanded- angle θ 3 of the left and right directions in fan shape portion 3 is preferably 10~45 degree.Angle, θ 3 is more preferable
It is 12 degree or more, further preferably 15 degree or more.Moreover, angle, θ 3 is more preferably 30 degree hereinafter, further preferably 20 degree
Below.If in circular situation, i.e., the upstream end that angle, θ 3 is the such fan shape portion 3 of 10 degree or more, especially this example is
So that the width of the upstream end is corresponded to the diameter of cylindrical tube 2 and smaller, also can fully obtain 3 (supply pipe of fan shape portion
1) extension of opening portion 16, can make the width of opening portion 16 be suitable for the width of melten glass supply unit 5.Moreover, if expanding
Open up angle, θ 3 be 45 degree hereinafter, then relative to fan shape portion 3 flanking central melten glass stream, melting at side both ends
Glass stream will not generate delay, can equally transfer melten glass.
Moreover, length L of the fan shape portion 3 on the transfer direction of melten glass relative to opening portion 16 width W and
For 0.5W~1.5W.Length L is preferably 0.7W or more.Moreover, length L is preferably 1.3W or less.If length L is 0.5W or more,
Then become sufficiently by the distance that the bubble (gas) that the melten glass in the transfer of supply pipe 1 generates floats, it can be effective by bubble
Ground guides to 14 side of upper end in fan shape portion 3 and floats and release to the surface layer of melten glass.Moreover, relative to fan shape
The melten glass stream of the flanking central in portion 3, the melten glass stream at side both ends do not generate delay, can equally transfer melting
Glass.Even if moreover, if length L be 1.5W hereinafter, if lower end 15 significantly tilt upwards, the melting glass based on supply pipe 1
The extracting position of glass will not become too low and can take out melten glass from the position appropriate that melten glass carries pipe 20.
Moreover, can fully obtain the extension of the opening portion 16 in fan shape portion 3 (supply pipe 1), and it is suitble to the width of opening portion 16
In the width of melten glass supply unit 5.Moreover, length L is preferably 300mm or more, more preferably 400mm or more is further excellent
It is selected as 500mm or more.Moreover, length L is preferably 1200mm hereinafter, more preferably 1050mm is hereinafter, further preferably 900mm
Below.
Also, it is preferred that the downstream end portion in the opening portion 16 close to fan shape portion 3 of supply pipe 1 be arranged it is horizontal
Flat part 4.The upper end 14 in fan shape portion 3 slightly tilts downwards, and lower end 15 significantly tilts upwards, therefore fan shape portion
Inclined upward of the melten glass from opening portion 16 by biggish lower end 15 in 3 is influenced, and is sent to melten glass supply unit 5
Out.If flat part 4 is arranged in the opening portion of fan shape portion 3 (supply pipe 1), flat part 4 can be utilized melten glass
Flow direction change into horizontal direction, and melten glass is made to rectify and send out to melten glass supply unit 5, therefore will not produced
Raw disorder, and can equally transfer melten glass.In this case, reliably to carry out this in the outlet in fan shape portion 3 whole
Stream, therefore preferably flat part 4 has certain length X, and its cross sectional shape and area of section are in the transfer direction of melten glass
It is upper identical.Length X changes according to the size in fan shape portion 3 or tilt angle etc., and does not limit, it is preferred that for 50~
200mm.Length X is more preferably 70mm or more.Moreover, length X is more preferably 150mm or less.
In the present embodiment, as supply pipe 1, melten glass carry pipe 20 material, preferably heat resistance and relative to
The big platinum of the corrosion resistance of melten glass or platinum alloy (such as platinum-rhodium alloy) or the material coated by platinum or platinum alloy.Platinum or
Platinum alloy has excellent real result as this purposes, especially for the forming temperature as LCD glass substrate
High melten glass and it is preferred that.As the material by platinum or platinum alloy cladding, illustrate heat-resisting using platinum or platinum alloy coated brick etc.
The material of the inner surface of component.
Moreover, although it is not shown, importing pipe portion and/or the fan shape portion of the supply pipe 1 still formed by these materials
It is uniformly heated up preferably by energization.Electrified regulation to platinum or platinum alloy direct-electrifying by carrying out.Moreover, by platinum or
When the material of platinum alloy cladding is conductive material, it can be powered to the material to carry out.Pipe 20 is carried to confession from melten glass
To pipe 1 take out high temperature melten glass before being transferred to melten glass supply unit 5 during, it is complete from surrounding air
Masking, therefore can prevent from cooling down with caused by the contact of air, and substantially protect by the electrified regulation of supply pipe 1
It holds as uniform temperature, is transferred with being suitable for the temperature of forming to melten glass supply unit 5.
In the present embodiment, gate 8 is opposite with the opening portion 16 of supply pipe 1 (fan shape portion 3) and setting is melting
Glass supply unit 5.The gate 8 is the width that will have with the width of the opening portion 16 in fan shape portion 3 and melten glass supply unit 5
Heat-resistant component the opening relative to fan shape portion 3 of the roughly the same width of degree (in Fig. 1 with the width in the vertical direction of paper)
Oral area 16 can be arranged up and down, can be adjusted and moving up and down to change height to the molten of the supply of molten metal bath 10
Melt amount of glass.Moreover, gate 8 controls the melten glass transmitted to melten glass supply unit 5 from top, thus as thickness along horizontal
It is supplied to the molten glass layers of certain thin layer to molten metal bath 10.Moreover, gate 8 is set by dropping to lowermost position, it can
Stop the supply of the melten glass to molten metal bath 10.Moreover, from the lower surface (upper surface of lip tile 9) of opening portion 16 to melting
The height c of metal level 13 is preferably 100~600mm.Height c is more preferably 350mm or more.Moreover, height c is more preferably
550mm or less.If height c is 100mm or more, the flow control of the melten glass carried out by gate 8 is become easy.Moreover,
If height c be 600mm hereinafter, if the flow control of melten glass that is carried out by gate 8 become easy.
In the case where the opening portion 16 of gate 8 and supply pipe 1 (fan shape portion 3) is oppositely arranged, gate 8 and opening
The gap d in portion 16 is preferably 0~30mm.Gap d is more preferably 20mm or less.Here, gap d refers to the case where being 0mm by lock
Door 8 is arranged close to 16 ground of opening portion in fan shape portion 3 as far as possible.Melten glass is transplanted in order to avoid closed by supply pipe 1
The melten glass of supply unit 5 is contacted in melten glass supply unit 5 with surrounding air, and gap d is preferably as small as possible.Melten glass
The melten glass of supply unit 5 forms Free Surface at gap d.If gap d be 30mm hereinafter, if can prevent melten glass by
In being contacted with surrounding air and the evaporation of cooled or a part of glass ingredient.In the present embodiment, gate 8 can use
Platinum or platinum alloy cladding are formed by the major part that the heat-resistant components such as ceramics quartz glass (vitreous silica) manufacture.Also, it is logical
It crosses and electrified regulation, the melting glass that thus will be transferred to melten glass supply unit 5 is carried out to platinum or platinum alloy in the same manner as supply pipe 1
Glass remains defined temperature.The gate 8 and the electrified regulation of supply pipe 1 can suitably be carried out by well known method.
Although in detail and illustrating the application referring to specific embodiment, purport and model of the invention are not departed from
The case where enclosing and various changes or amendment can be added is self-evident to those skilled in the art.
The application is based on the Japanese patent application 2015-106020 to file an application on May 26th, 2015, and by its content
It is incorporated herein as reference.
[industrial applicibility]
The present invention can using as the molten glass supply apparatus of float glass manufacturing device, be particularly adapted to by
The case where high and melten glass containing the evaporable glass ingredient of appearance of shape temperature is supplied to molten metal bath.
Claims (14)
1. a kind of molten glass supply apparatus, which is characterized in that
The molten glass supply apparatus has: supply pipe, for melten glass to be carried pipe to molten metal bath from melten glass
Melten glass supply unit transfer；And gate, the institute of the molten metal bath is oppositely disposed at the opening portion of the supply pipe
Melten glass supply unit is stated, and for adjusting the melten glass supply amount to the molten metal bath,
The opening portion of the supply pipe configures the position low in the molten glass level than glass furnace,
The supply pipe has the fan-shaped shape that the opening portion towards downstream is extended in the lateral direction with defined angle
Shape portion, the cross sectional shape in the fan shape portion towards the opening portion and gradually flattening,
The tilt angle of the upper end in the fan shape portion is -5 degree more than and less than+2 degree, the sector relative to horizontal direction
The tilt angle of the lower end of shape portion is+10~+30 degree relative to horizontal direction, and the width of the opening portion is being set as W's
In the case of, length of the fan shape portion on the transfer direction of the melten glass is 0.5W~1.5W.
2. molten glass supply apparatus according to claim 1, wherein
The tilt angle of the upper end in the fan shape portion is -1 degree more than and less than+2 degree relative to horizontal direction.
3. molten glass supply apparatus according to claim 1, wherein
The tilt angle of the lower end in the fan shape portion is+15~+25 degree relative to horizontal direction.
4. molten glass supply apparatus according to claim 1, wherein
Length of the fan shape portion on the transfer direction of the melten glass is 0.7W~1.3W.
5. molten glass supply apparatus according to claim 1, wherein
Length of the fan shape portion on the transfer direction of the melten glass is 300~1200mm.
6. molten glass supply apparatus according to claim 1, wherein
The width W of the opening portion is 300~1200mm.
7. molten glass supply apparatus according to claim 1, wherein
The expanded- angle of the left and right directions in the fan shape portion is 10~45 degree.
8. molten glass supply apparatus according to claim 7, wherein
The expanded- angle of the left and right directions in the fan shape portion is 12~30 degree.
9. molten glass supply apparatus according to claim 1, wherein
The flat part being horizontally formed is arranged in downstream end portion in the fan shape portion, and the flat part is in the melten glass
Transfer direction on length be 50~200mm.
10. molten glass supply apparatus according to claim 9, wherein
The length of the flat part is 70~150mm.
11. molten glass supply apparatus according to claim 1, wherein
At least part of the gate is coated by platinum or platinum alloy.
12. molten glass supply apparatus according to claim 11, wherein
The gate remains certain temperature by electrified regulation.
13. a kind of float glass manufacturing device, including molten glass supply apparatus described in any one of claim 1~12.
14. a kind of float glass making process has used float glass manufacturing device described in claim 13, comprising:
The step of obtaining melten glass, is heated to glass raw material；And
The melten glass is formed and slow cooling and the step of obtain float glass.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015106020A JP2016216323A (en) | 2015-05-26 | 2015-05-26 | Molten glass supply apparatus |
| JP2015-106020 | 2015-05-26 |
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| Publication Number | Publication Date |
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| CN106186642A CN106186642A (en) | 2016-12-07 |
| CN106186642B true CN106186642B (en) | 2019-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610357701.XA Active CN106186642B (en) | 2015-05-26 | 2016-05-26 | Molten glass supply apparatus |
| CN201620490334.6U Expired - Fee Related CN205838831U (en) | 2015-05-26 | 2016-05-26 | Molten glass supply apparatus |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620490334.6U Expired - Fee Related CN205838831U (en) | 2015-05-26 | 2016-05-26 | Molten glass supply apparatus |
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| JP (1) | JP2016216323A (en) |
| KR (1) | KR20160138924A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2016216323A (en) * | 2015-05-26 | 2016-12-22 | 旭硝子株式会社 | Molten glass supply apparatus |
| 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 |
| DE102017124625A1 (en) | 2016-12-22 | 2018-06-28 | Schott Ag | Thin glass substrate, method and apparatus for its manufacture |
| KR102672587B1 (en) * | 2018-09-27 | 2024-06-07 | 코닝 인코포레이티드 | Modular molten glass transfer device |
| JP7330433B2 (en) * | 2019-07-03 | 2023-08-22 | 日本電気硝子株式会社 | Glass article manufacturing apparatus and manufacturing method |
| CN114920447B (en) * | 2022-05-17 | 2024-03-29 | 杭州纳玻科技有限公司 | Preparation method, forming device and product of borosilicate glass with few bubbles |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102612498A (en) * | 2009-11-16 | 2012-07-25 | 旭硝子株式会社 | Molten glass supply device |
| CN205838831U (en) * | 2015-05-26 | 2016-12-28 | 旭硝子株式会社 | Molten glass supply apparatus |
-
2015
- 2015-05-26 JP JP2015106020A patent/JP2016216323A/en active Pending
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- 2016-05-26 CN CN201610357701.XA patent/CN106186642B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102612498A (en) * | 2009-11-16 | 2012-07-25 | 旭硝子株式会社 | Molten glass supply device |
| CN205838831U (en) * | 2015-05-26 | 2016-12-28 | 旭硝子株式会社 | Molten glass supply apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20160138924A (en) | 2016-12-06 |
| CN106186642A (en) | 2016-12-07 |
| CN205838831U (en) | 2016-12-28 |
| JP2016216323A (en) | 2016-12-22 |
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