CN102686522A - Vacuum degassing apparatus for molten glass, method of producing molten glass using same, and method of producing glass article - Google Patents
Vacuum degassing apparatus for molten glass, method of producing molten glass using same, and method of producing glass article Download PDFInfo
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- CN102686522A CN102686522A CN2010800599605A CN201080059960A CN102686522A CN 102686522 A CN102686522 A CN 102686522A CN 2010800599605 A CN2010800599605 A CN 2010800599605A CN 201080059960 A CN201080059960 A CN 201080059960A CN 102686522 A CN102686522 A CN 102686522A
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- Prior art keywords
- vacuum deaerator
- melten glass
- vacuum
- metal line
- groove
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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
- C03B5/2252—Refining under reduced pressure, e.g. with vacuum refiners
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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
- C03B5/24—Automatically regulating the melting process
- C03B5/245—Regulating the melt or batch level, depth or thickness
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Degasification And Air Bubble Elimination (AREA)
Abstract
Provided is a vacuum degassing apparatus having a means for measuring the flux line level of the molten glass in a vacuum degassing tank. Specifically provided is a vacuum degassing apparatus for molten glass, which comprises a liquid surface measuring means inserted into a vacuum degassing tank and made up of vertical members of plate material or rod material and horizontal members of plate material provided to the vertical members.
Description
Technical field
The present invention relates to be used for remove vacuum degassing apparatus and the defecation method etc. that uses its melten glass of the melten glass of bubble from the melten glass of continuous supply.
Background technology
In the past, in order to improve the quality of the glasswork obtain of being shaped, before the melten glass that the raw material fusing is formed with smelting furnace being formed, the clarification operation that the bubble that produces in the melten glass is removed was set through shaping appts.
About this clarification operation; Known following vacuum deaerator method: melten glass is imported in the reduced atmosphere; Bubble in the molten glass flow of continuous flow is grown up; Thereby make bubble floating contained in the melten glass, bubble is broken and be removed, then melten glass is discharged from reduced atmosphere by (referenced patent document 1) at molten glass surface.
The effect of vacuum deaerator method also receives the miles of relative movement of bubble till the glass surface, is metal line (play from the bottom surface of vacuum deaerator groove the liquid level of melten glass till the distance) influence of melten glass except the ascent rate that receives bubble influences.
Therefore, in the vacuum deaerator method of melten glass, it is important that the metal line of the melten glass in the vacuum deaerator groove is remained on certain level.
In addition, if the liquid level change of melten glass in the vacuum deaerator groove, the foreign matter that then is present in the wall of vacuum deaerator groove might be sneaked in the melten glass.In order to prevent sneaking into of this foreign matter, it also is important that the metal line of the melten glass in the vacuum deaerator groove is remained on certain level.
The electric unit of the metal line that is used for the melten glass in implementing vacuum deaerator method mensuration vacuum deaerator groove is disclosed in the patent documentation 2; But; When the high-quality glass that particularly requires as display base plate glass; Use electrical units to produce chemical affect to the melten glass in the vacuum deaerator groove, thus undesirable.
The prior art document
Patent documentation
Patent documentation 1: Japanese Patent Laid is opened the 2006-306662 communique
Patent documentation 2: japanese patent laid-open 3-69516 communique
Summary of the invention
Invent technical problem to be solved
Consider above-mentioned aspect, the object of the present invention is to provide unitary vacuum degassing apparatus with metal line of measuring the melten glass in the vacuum deaerator groove easily.
The technical scheme that the technical solution problem is adopted
In order to achieve the above object; The present invention provides a kind of vacuum degassing apparatus of melten glass; This device comprises: the decompression housing that is vacuumized; Be arranged in the above-mentioned decompression housing and be used to carry out the vacuum deaerator groove of the vacuum deaerator of melten glass, be arranged to be communicated with and be used for the melten glass before the vacuum deaerator imported the importing unit of above-mentioned vacuum deaerator groove and be arranged to being communicated with above-mentioned vacuum deaerator groove and being used for the lead-out unit of the melten glass behind the vacuum deaerator from above-mentioned vacuum deaerator groove derivation with above-mentioned vacuum deaerator groove; It is characterized in that; Have at least 1 window portion that is made up of hollow structure portion and transparent window, above-mentioned hollow structure portion is communicated with the channel opening portion at the top that is arranged at above-mentioned vacuum deaerator groove and the shell nozzle portion at the top that is arranged at above-mentioned decompression housing, and above-mentioned transparent window is arranged at above-mentioned shell nozzle portion; The metal line determination unit is inserted into the inside of above-mentioned vacuum deaerator groove from above-mentioned hollow structure portion; Above-mentioned metal line determination unit is made up of vertical member and the horizontal member that is arranged on this vertical member; And be used to measure the metal line of the melten glass in the above-mentioned vacuum deaerator groove, above-mentioned vertical member is made up of tabular body or column.
In addition; The present invention provides the vacuum deaerator method of the melten glass that uses above-mentioned vacuum degassing apparatus; And use above-mentioned vacuum degassing apparatus to utilize above-mentioned metal line determination unit to measure the metal line of the melten glass in the vacuum deaerator groove on one side, on one side melten glass is carried out the vacuum deaerator method of the melten glass of vacuum deaerator.
In addition; The present invention provides a kind of vacuum deaerator method of melten glass; This method is carried out vacuum deaerator to the melten glass that is directed into the vacuum deaerator groove from above-mentioned importing unit for using above-mentioned vacuum degassing apparatus in the vacuum deaerator groove, and with the method for this melten glass from above-mentioned lead-out unit derivation; It is characterized in that; When in the vacuum deaerator groove, above-mentioned melten glass being carried out vacuum deaerator, Yi Bian utilize above-mentioned metal line determination unit to measure the metal line of the melten glass in the vacuum deaerator groove, Yi Bian melten glass is carried out vacuum deaerator.
In addition, the present invention provides the method for manufacture of the melten glass that uses above-mentioned vacuum deaerator method.
Also have, the present invention provides the method for manufacture of melten glass, and this method comprises: utilize vacuum deaerator operation that above-mentioned vacuum deaerator method carries out and as the raw materials melt operation of the former process of above-mentioned vacuum deaerator operation.
In addition; The present invention also provides the method for manufacture of glass article; This method comprises: the vacuum deaerator operation of utilizing above-mentioned vacuum deaerator method to carry out, and as the raw materials melt operation of the former process of above-mentioned vacuum deaerator operation with as the forming process of the later process of above-mentioned vacuum deaerator operation.
The effect of invention
Vacuum degassing apparatus of the present invention can be measured the metal line of the melten glass in the vacuum deaerator groove in the implementation process of the vacuum deaerator method of melten glass.And, can the metal line of the melten glass in the vacuum deaerator groove be remained on certain level based on the mensuration result of the metal line of gained.
The simple declaration of accompanying drawing
Fig. 1 is the sectional view that a structure example of vacuum degassing apparatus of the present invention is shown.
Fig. 2 is the enlarged view of metal line determination unit 40a shown in Figure 1.
Fig. 3 is the figure that observes metal line determination unit 40a shown in Figure 2 from the top.
Embodiment
Below, the present invention will be described with reference to accompanying drawing.
Fig. 1 is the sectional view that a structure example of vacuum degassing apparatus of the present invention is shown.In the vacuum degassing apparatus 10 shown in Figure 1, be vacuum deaerator groove 12 cylindraceous with its major axis towards the mode of horizontal direction take in be disposed at the decompression housing 11 in.Lower surface at the upstream side of vacuum deaerator groove 12 is equipped with the upcast 13 towards vertical direction, and the lower surface in the downstream side is equipped with downtake 14.In addition, the upstream side of vacuum deaerator groove 12 and downstream side are meant upstream side and the downstream side on the flow direction of mobile melten glass G in vacuum deaerator groove 12.The part of upcast 13 and downtake 14 is positioned at decompression housing 11.
As shown in Figure 1, upcast 13 is communicated with vacuum deaerator groove 12, is with the importing unit that imports vacuum deaerator groove 12 from the melten glass G of melting channel 100.Therefore, the bottom of upcast 13 is inserted in the opening end of upstream slot 120, and impregnated among the melten glass G in this upstream slot 120.
In the decompression housing 11, dispose around vacuum deaerator groove 12, upcast 13 and the downtake 14 they are carried out the heat insulation with lagging materials such as brick 18 of heat insulation lining.
In vacuum degassing apparatus shown in Figure 1 10, be provided with at the top of decompression housing 11 and attract peristome 21, this attraction peristome 21 to be used for remaining on decompression state with the inside of the housing 11 that will reduce pressure through utilizing vacuum pump (not shown) etc. to carry out vacuum attraction.Also be provided with the attraction peristome 31 that is used for the inside of this vacuum deaerator groove 12 is remained on decompression state at the top of vacuum deaerator groove 12.
In the vacuum degassing apparatus 10 shown in Figure 1, vacuum deaerator groove 12, upcast 13 and downtake 14 be owing to be the conduit of melten glass G, therefore uses thermotolerance and the good material of the solidity to corrosion of melten glass is processed.As an example, the hollow tube of vacuum deaerator groove 12 of can giving an example for platinum system, platinum alloy (platinum-au-alloy, platinum-rhodium alloy etc.) system, compact substance refractory materials system etc.
Take in vacuum deaerator groove 12 and take in upcast 13 and the decompression housing 11 of the part of downtake 14 is metal system, the housing of stainless steel for example.
In addition, as long as vacuum degassing apparatus of the present invention has the hollow structure that channel opening portion and shell nozzle portion are communicated with, it also can be the simple hollow structure with tubular construction of vacuum degassing apparatus as shown in Figure 1 10 that kind.Below, when mentioning hollow tubular structure in this specification sheets, also comprise the hollow structure that does not have tubular construction as this.In addition, in this specification sheets, comprise hollow tubular structure portion, in the following hollow structure portion that all is called.
In the vacuum degassing apparatus 10 shown in Figure 1; The 17a of window portion that is made up of 15a of hollow structure portion and transparent window 16a is positioned at the top of upcast 13; The 17b of window portion that is made up of 15b of hollow structure portion and transparent window 16b is positioned at the top of downtake 14, but the quantity of the window portion of position that window portion is set in the vacuum degassing apparatus of the present invention and setting is not limited thereto.Therefore, for example both can an only fenestrate 17a, the side among the 17b, also can be except that the 17a of window portion, the 17b also the expression in Fig. 1 for example attract the position of peristome 21 to have the 3rd window portion.
But; In the vacuum deaerator groove 12; Metal line in confirming vacuum deaerator groove 12 and the state of the broken bubble of this metal line, be the melten glass G vacuum deaerator groove 12 in state aspect, import from the upcast 13 of the melten glass G of melting channel 100 and the connected component of vacuum deaerator groove 12 and with the melten glass G behind the vacuum deaerator to the downtake 14 of the treatment trough derivation of later process and the connected component particularly important of vacuum deaerator groove 12.Therefore, better be in upcast 13 and downtake 14 at least one side above window portion is set, better be as shown in Figure 1, above upcast 13 and downtake 14 both sides, the 17a of window portion, 17b are set all.
The 15a of hollow structure portion, 15b require excellent heat resistance, better are platinum system or platinum alloy system or compact refractory material system therefore.
The section shape of the 15a of hollow structure portion, 15b is not as long as the state aspect of the melten glass G in confirming vacuum deaerator groove 12 exists improper; And the intensity of can not cause reducing pressure housing 11 and vacuum deaerator groove 12 reduces; Then there be not special the qualification; As its shape of cross section, can select different shapes such as circle, ellipse, rectangle.
For the size of the each several part of the 15a of hollow structure portion, 15b too; As long as the state aspect of the melten glass G in confirming vacuum deaerator groove 12 does not exist improper; And the intensity of can not cause reducing pressure housing 11 and vacuum deaerator groove 12 reduces, and does not then also have special qualification.The round equivalent footpath of the section shape of hollow structure portion during as the size of this xsect, for example can be made as 30～400mm, be more preferably and be made as 40～350mm, further be more preferably and be made as 50～300mm.
It is desirable to have thermotolerance, resistance to pressure, acid resistance etc. at transparent window 16a, the 16b of the 20a of shell nozzle portion, the setting of 20b side.As the material that satisfies these conditions, can give an example for example silica glass, sapphire glass, transparent sintered glass ceramics etc.
In the vacuum degassing apparatus 10 shown in Figure 1, metal line determination unit 40a, 40b are inserted into the inside of vacuum deaerator groove 12 from the 15a of hollow structure portion, 15b.
Fig. 2, Fig. 3 are the enlarged views of metal line determination unit 40a.Fig. 2 is the side-view of metal line determination unit 40a, and Fig. 3 is the figure that observes metal line determination unit 40a from the top of Fig. 2.Though only show the enlarged view of metal line determination unit 40a, metal line determination unit 40b also is same shape.
Fig. 2, metal line determination unit 40a shown in Figure 3 are made up of vertical member 41a and the horizontal member 43a that is arranged at this vertical member 41a, and wherein, vertical member 41a is made up of tabular body.Here, the namelist of vertical member and horizontal member be shown in metal line determination unit 40a be inserted into these members under the state behind the inside of vacuum deaerator groove 12 towards.That is, under the state behind the inside that metal line determination unit 40a is inserted into vacuum deaerator groove 12, vertical member 41a is in the state of its long side direction towards vertical direction, and horizontal member 43a is in the state of its long side direction towards horizontal direction.
Among the metal line determination unit 40a shown in Figure 2, with the mode uniformly-spaced apart or predetermined distance of being separated by 5 horizontal member 43a are set along the long side direction (length direction) of vertical member 41a.Dispose this 5 horizontal member 43a through the mode that staggers with the position on the width of vertical member 41a, as shown in Figure 3, during from the distolateral observation of this vertical member 41a, 5 horizontal member 43a are in the descried position of whole abilities relation.Long side direction at vertical member 41a has been shown among Fig. 2, be on the above-below direction so that the example of 5 horizontal member 43a to be set across equally spaced mode, but set a plurality of horizontal members also can be provided with the mode across predetermined distance.
In addition, require vertical member 41a and horizontal member 43a to have good thermotolerance and to the erosion resistance of melten glass, and of the back, better be that the thickness of vertical member 41a and horizontal member 43a is little, therefore preferred platinum system or platinum alloy system.
In the vacuum degassing apparatus 10 shown in Figure 1, vertical member 41a, 41b form the main body of metal line determination unit 40a, 40b, are provided with flange 42a, 42b in the upper end of vertical member 41a, 41b.Through this flange of clamping 42a, 42b between the end of the 20a of shell nozzle portion of the 15a of hollow structure portion, 15b, 20b side and transparent window 16a, 16b; Thereby the horizontal member of below (below, be called the horizontal member of below " be located at " in this specification sheets) of being located at that is arranged among the last horizontal member 43a of vertical member 41a, 41b, the 43b is fixed under the state of the inside that is inserted into vacuum deaerator groove 12 with prescribed depth.Here, as shown in Figure 1, must make and be located at that horizontal member 43a, the 43b of below are in the state among the melten glass G that impregnated in the vacuum deaerator groove 12.Therefore, must satisfy following formula from the upper end of vertical member 41a, 41b to the horizontal member 43a that is located at below, the distance L (mm) till the 43b.
·L＞L
1＋L
2
Here, L
1(mm) be the length of the 15a of hollow structure portion, 15b, L
2(mm) be distance till from the top of vacuum deaerator groove 12 to the liquid level that dissolves glass G.
In addition, above-mentioned L (mm) must satisfy following formula.
·L＜L
1＋L
3
Here, L
3(mm) be the height of vacuum deaerator groove 12, promptly play distance till the bottom surface from the top of vacuum deaerator groove 12.
As shown in Figure 1, the height H of the liquid level of the melten glass G in the vacuum deaerator groove 12 is adjusted to the height L that reaches vacuum deaerator groove 12 usually
3(mm) about 1/2.Though being arranged at the number of the horizontal member 43 of vertical member 41 influences; But under the situation of illustrated metal line determination unit 40a, 40b, better be located at horizontal member 43a, the 43b of below impregnated in melten glass G liquid level height H about 1/2 till the position.
Therefore, better be that above-mentioned L (mm) satisfies following formula.
·L＜L
1＋3/4L
3
The width of vertical member 41a, 41b does not then have special the qualification so long as can insert the size of the 15a of hollow structure portion, 15b.But the vertical member 41a that is made up of tabular body, the width of 41b are big more, then can increase the horizontal member 43a that is arranged at this vertical member 41a, 41b, the number of 43b, thereby the width of preferred vertical member are big.
In addition; Better be so that the consistent mode of flow direction of the melten glass G in the short side direction of vertical member 41a, 41b (width) and the vacuum deaerator groove 12 is provided with metal line determination unit 40a, 40b, in order to avoid the mobile anxiety that hinders the interior melten glass G of vacuum deaerator groove 12 is arranged because of the setting of metal line determination unit 40a, 40b.
In the vacuum degassing apparatus 10 of the present invention,, measure the metal line of the melten glass G in the vacuum deaerator groove 12 through transparent window 16a, 16b eye- level member 43a, 43b from the 17a of window portion, 17b.That is, in vacuum degassing apparatus shown in Figure 1 10,3 horizontal member 43a, 43b being positioned at the top among 5 horizontal member 43a, the 43b are positioned at the top of liquid level, so can observe from transparent window 16a, 16b.On the other hand, 2 horizontal member 43a, 43b being arranged in the below are in the state that impregnated in melten glass G, so can not observe from transparent window 16a, 16b.
As the unit of the metal line of measuring the melten glass G in the vacuum deaerator groove 12,, therefore can not use acoustic elements because the inside of vacuum deaerator groove 12 is environment of high temperature and reduced atmosphere.In addition, the use of electrical units might produce chemical affect to the melten glass G in the vacuum deaerator groove 12, thereby not preferred.Relative therewith, the vacuum degassing apparatus that possesses metal line determination unit of the present invention is better, and this metal line determination unit of the present invention can utilize visual or optical device to measure the metal line of melten glass.
The liquid level of melten glass G the horizontal member below from transparent window 16a, the observed horizontal member 43a of 16b, 43b and can not observed horizontal member 43a from transparent window 16a, 16b, between the horizontal member in the top the 43b, therefore can measure the metal line of melten glass G based on play distance till these 2 horizontal members from the bottom surface of vacuum deaerator groove 12.
According to above-mentioned consideration,, also can measure the metal line of melten glass G even be arranged at 1 of horizontal member on the vertical member.That is, can be when transparent window to be observed horizontal member, this horizontal member is positioned at the above position of liquid level.On the other hand, can not be when transparent window to be observed horizontal member, this horizontal member is positioned at the position below the liquid level.Can judge height thus with respect to the metal line that plays the distance till the horizontal member from the bottom surface of vacuum deaerator groove.
But,, better be that the long side direction along vertical member 41a as shown in Figure 2 is provided with the horizontal member 43a more than 2 to vacate mode at interval in order to measure metal line more accurately.Under this situation, do not limit, can suitably select as required the number that is arranged at the horizontal member 43a on the vertical member 41a is special.
Among Fig. 3, horizontal member 43a is arranged to the number that spination (staggered arrangement) increases the horizontal member 43a that is arranged on the vertical member 41a through both sides at vertical member 41a.
When the horizontal member more than 2 is set on vertical member; To each other interval of the horizontal member on the long side direction of vertical member (below; Be called " spacing of horizontal member (p) ") not special the qualification, can suitably select according to the mensuration precision of desired metal line.As an example, can give an example and process 5mm spacing, 10mm spacing, 25mm spacing, 50mm spacing etc.
In addition, also can be according to the spacing (p) that the position changes horizontal member that is provided with of metal line determination unit.For example, being inserted in the metal line determination unit 40a that is arranged on the 17a of window portion above the upcast 13 and being inserted in the metal line determination unit 40b place that is arranged on the 17b of window portion above the downtake 14, also can change the spacing (p) of horizontal member 43a, 43b.Compare with upcast 13 sides as the inlet of melten glass G; Downtake 14 sides as the outlet side of this melten glass G are more important to metal line being controlled at certain level; Therefore can the spacing (p) of the horizontal member 43b among the metal line determination unit 40b be made as the 25mm spacing, and the spacing (p) of the horizontal member 43a among the metal line determination unit 40a is made as the 50mm spacing.
For the size of horizontal member 43a, 43b, then there be not special the qualification as long as can observe from transparent window 16a, 16b, it is square etc. for example to be made as 10～20mm.
For the thickness of horizontal member 43a, 43b, as long as can obtain physical strength, the horizontal member that thickness is as far as possible little does not hinder the mobile anxiety of melten glass G in the vacuum deaerator groove 12, so the as far as possible little horizontal member of preferred thickness.Horizontal member 43a, 43b are under the situation of platinum system or platinum alloy system, if its thickness is about 0.8mm～1mm then physical strength is enough.
The planeform of horizontal member 43a shown in Figure 3 is a square, but the planeform that is arranged at the horizontal member of vertical member is not limited thereto, and also can be square suitable shapes in addition such as semicircle, trilateral.Under this situation, also can on 1 vertical member, the horizontal member that planeform differs from one another be set.Each horizontal member that horizontal member that planeform differs from one another makes identification be arranged on this vertical member is set on 1 vertical member becomes easily, therefore preferably.
In above-mentioned, to being that the situation of tabular body is that example is illustrated with the vertical member, but vertical member of the present invention is not limited thereto, and also can be the column of bar-shaped, tubular, local bar-shaped or part-cylindrical.
When the horizontal member more than 2 is set, can the horizontal member more than 2 be arranged to spirrillum along the periphery of this column on the vertical member that constitutes by column.
When vertical member is column; As long as can obtain physical strength; The vertical member that diameter is as far as possible little can not hinder flowing of melten glass in the vacuum deaerator groove, and can be arranged at horizontal member on this vertical member make bigger, the therefore preferred as far as possible little vertical member of diameter.The column that constitutes vertical member is under the situation of platinum system or platinum alloy system, if its diameter is about 3～10mm then physical strength is enough.
In addition, in the above-mentioned form, utilize flange, under the state of the inside that vertical member is inserted into the vacuum deaerator groove with prescribed depth, vertical member fixed, but also can use the unit beyond the flange to fix vertical member.As the concrete example of the fixed cell beyond the flange, the internal surface that vertical member is welded on hollow structure portion of can giving an example carries out fixed method etc.
The size of each constitutive requirements of the vacuum degassing apparatus 10 beyond above-mentioned can suitably be selected as required.No matter vacuum deaerator groove 12 is platinum system or platinum alloy system, or compact substance refractory materials system, the size of vacuum deaerator groove 12 can suitably select according to the shape of employed vacuum degassing apparatus, vacuum deaerator groove 12.Under the situation of columnar vacuum deaerator groove 12 as shown in Figure 1, one of its size is for example descended.
Length on the horizontal direction; 1～20m,
Internal diameter: 0.2～3m,
Section shape: circle.
The vacuum deaerator groove is not limited to that section is circular to be the groove of drum, also can be that section shape is that the groove or the section of the approximate cylinder shape of ellipse or semi-circular shape is the groove of orthogonal barrel shape.
No matter be platinum system or platinum alloy system, or compact substance refractory materials system, upcast 13 can suitably select with downtake 14 according to employed vacuum degassing apparatus.For example, under the situation of vacuum degassing apparatus 10 shown in Figure 1, one of the size of upcast 13 and downtake 14 is for example descended.
Internal diameter: 0.05～0.8m, preferred 0.1～0.6m,
Length: 0.2～6m, preferred 0.4～4m.
Use the vacuum deaerator method of the melten glass of vacuum degassing apparatus of the present invention under the condition identical, to implement with the vacuum deaerator method of existing melten glass.For example, when implementing vacuum deaerator, better be to 12 heating of vacuum deaerator groove, make its inside reach 1100 ℃～1600 ℃, preferred especially 1150 ℃～1500 ℃ TR.In addition, vacuum deaerator groove 12 inside with absolute pressure represent better be decompressed to 38～460mmHg (51～613hPa), be more preferably and be decompressed to 60～350mmHg (80～467hPa).In addition, from the angle of productivity, the flow of mobile melten glass G is preferably 1～200 ton/day in vacuum deaerator groove 12.
When utilizing the present invention to implement the vacuum deaerator method of melten glass, Yi Bian utilize above-mentioned metal line determination unit to measure the metal line of the melten glass in the vacuum deaerator groove, Yi Bian melten glass is carried out vacuum deaerator.When changing into predefined liquid level according to the liquid level of the melten glass that records; For example control as follows: adjust the vacuum tightness in the vacuum deaerator groove of melten glass with the condition that turns back to the height that sets, the vacuum deaerator condition is remained on certain condition.Through this control, can the deaeration effect of melten glass be kept certain, obtain the few colory glasswork of bubble of bubble.In addition, through reducing the variation of metal line, can prevent that foreign matter from sneaking in the melten glass.
Using in the melten glass method of manufacture of vacuum deaerator method of the present invention, as the former process and the later process of vacuum deaerator method of the present invention, better is to comprise raw materials melt operation and forming process.This raw materials melt operation for example can be present known operation, for example be heated to through kind according to glass about more than 1400 ℃ and with the operation of raw materials melt.The starting material that adopt are so long as be suitable for the starting material of the glass of manufacturing and get final product; There is not special the qualification yet; For example can use present material known such as silica sand, boric acid, Wingdale is concocted the starting material that form according to the composition of final glasswork, also can contain needed finings.In addition, this forming process for example can be present known operation, can give an example for example float forming operation, rolling formation operation, melt-shaping operation etc.
Utilize glass that the present invention makes so long as the glass through the heating and melting manufactured is just unrestricted on forming.Therefore, both can be non-alkali glass, also can be to be the sodium calcium class glass of representative with the soda-lime glass or as to contain alkali-containing glass such as alkali borosilicate glass.The present invention is particularly suitable for making non-alkali glass, is more suitable for making liquid crystal display substrate and uses non-alkali glass.
In addition, can obtain to steep the extremely good glasswork of quality according to the present invention, therefore be suitable as the method for manufacture of the method for manufacture of glass article, the glass substrate that for example FPD uses etc.
The possibility of utilizing on the industry
According to the present invention, can in the implementation process of the vacuum deaerator method of melten glass, measure the metal line of the melten glass in the vacuum deaerator groove.And, can the metal line of the melten glass in the vacuum deaerator groove be remained on certain level based on the mensuration result of the metal line of gained.Consequently, can improve the deaeration effect of melten glass, it is best in quality to steep few bubble, and can prevent that foreign matter from sneaking in the melten glass, and can make high quality glass products.Method of manufacture of the present invention is as particularly useful with the method for manufacture of glass etc. to being strict with the glass basal plates of flat panel display of not steeping defective, foreign matter defective or optics.
In addition, the full content of quoting Japanese patent application 2010-002607 number specification sheets, claims, accompanying drawing and the summary of filing an application on January 8th, 2010 here is as announcement of the present invention.
The explanation of symbol
10: vacuum degassing apparatus
11: the decompression housing
12: the vacuum deaerator groove
13: upcast
14: downtake
15a, 15b: hollow structure portion
16a, 16b: transparent window
17a, 17b: window portion
18: lagging material
20a, 20b: shell nozzle portion
21,31: attract peristome
30a, 30b: channel opening portion
40a, 40b: metal line determination unit
41a, 41b: vertical member
42a, 42b: flange
43a, 43b: horizontal member
100: melting channel
120: upstream slot
140: downstream slot
G: melten glass
Claims (10)
1. the vacuum degassing apparatus of a melten glass; This device comprises: the decompression housing that is vacuumized; Be arranged in the said decompression housing and be used to carry out the vacuum deaerator groove of the vacuum deaerator of melten glass; Be arranged to be communicated with and be used for the melten glass before the vacuum deaerator is imported the importing unit of said vacuum deaerator groove with said vacuum deaerator groove; Lead-out unit with being arranged to be communicated with and be used for the melten glass behind the vacuum deaerator is derived from said vacuum deaerator groove with said vacuum deaerator groove is characterized in that
Has at least 1 window portion that constitutes by hollow structure portion and transparent window; Said hollow structure portion is communicated with the channel opening portion at the top that is arranged at said vacuum deaerator groove and the shell nozzle portion at the top that is arranged at said decompression housing, and said transparent window is arranged at said shell nozzle portion;
The metal line determination unit is inserted into the inside of said vacuum deaerator groove from said hollow structure portion; Said metal line determination unit is made up of vertical member and the horizontal member that is arranged on this vertical member; And be used to measure the metal line of the melten glass in the said vacuum deaerator groove, said vertical member is made up of tabular body or column.
2. the vacuum degassing apparatus of melten glass as claimed in claim 1 is characterized in that, said window portion is arranged at least one side's of said importing unit and said lead-out unit top.
3. according to claim 1 or claim 2 the vacuum degassing apparatus of melten glass; It is characterized in that; On said vertical member; To vacate mode at interval the horizontal member more than 2 is set along the long side direction of this vertical member, so that during from distolateral observations of this vertical member, whole horizontal members is in and can concerns descried position.
4. like the vacuum degassing apparatus of each the described melten glass in the claim 1～3, it is characterized in that the said vertical member and the said horizontal part that constitute said metal line determination unit are platinum system or platinum alloy system.
5. the vacuum deaerator method of a melten glass is characterized in that, uses each the described vacuum degassing apparatus in the claim 1～4.
6. the vacuum deaerator method of a melten glass; It is characterized in that; Use each the described vacuum degassing apparatus in the claim 1～4, Yi Bian utilize said metal line determination unit to measure the metal line of the melten glass in the vacuum deaerator groove, Yi Bian melten glass is carried out vacuum deaerator.
7. the vacuum deaerator method of a melten glass; This method is for using each the described vacuum degassing apparatus in the claim 1～4; In the vacuum deaerator groove, the melten glass that is directed into the vacuum deaerator groove from said importing unit is carried out vacuum deaerator; And with the method that this melten glass is derived from said lead-out unit, it is characterized in that, when in the vacuum deaerator groove, said melten glass being carried out vacuum deaerator; Utilize said metal line determination unit to measure the metal line of the melten glass in the vacuum deaerator groove on one side, on one side melten glass is carried out vacuum deaerator.
8. the method for manufacture of a melten glass is characterized in that, uses each the described vacuum deaerator method in the claim 5～7.
9. the method for manufacture of a melten glass is characterized in that, comprising: utilize vacuum deaerator operation that each the described vacuum deaerator method in the claim 5～7 carries out and as the raw materials melt operation of the former process of said vacuum deaerator operation.
10. the method for manufacture of a glass article; It is characterized in that; Comprise: the vacuum deaerator operation of utilizing each the described vacuum deaerator method in the claim 5～7 to carry out; As the raw materials melt operation of the former process of said vacuum deaerator operation with as the forming process of the later process of said vacuum deaerator operation.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010002607 | 2010-01-08 | ||
| JP2010-002607 | 2010-01-08 | ||
| PCT/JP2010/073789 WO2011083736A1 (en) | 2010-01-08 | 2010-12-28 | Vacuum degassing apparatus for molten glass, method of producing molten glass using same, and method of producing glass article |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102686522A true CN102686522A (en) | 2012-09-19 |
Family
ID=44305472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010800599605A Pending CN102686522A (en) | 2010-01-08 | 2010-12-28 | Vacuum degassing apparatus for molten glass, method of producing molten glass using same, and method of producing glass article |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPWO2011083736A1 (en) |
| KR (1) | KR20120121874A (en) |
| CN (1) | CN102686522A (en) |
| TW (1) | TW201132647A (en) |
| WO (1) | WO2011083736A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101855752B1 (en) | 2012-10-31 | 2018-06-25 | 현대자동차 주식회사 | Gasolin engine control system and control mehtod for the same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS424387Y1 (en) * | 1965-12-13 | 1967-03-09 | ||
| JPH024387Y2 (en) * | 1986-01-24 | 1990-02-01 | ||
| CN101595068A (en) * | 2007-01-31 | 2009-12-02 | 旭硝子株式会社 | Glass-making processes and vacuum degassing apparatus |
-
2010
- 2010-12-28 CN CN2010800599605A patent/CN102686522A/en active Pending
- 2010-12-28 JP JP2011548974A patent/JPWO2011083736A1/en not_active Withdrawn
- 2010-12-28 KR KR1020127009002A patent/KR20120121874A/en not_active Application Discontinuation
- 2010-12-28 WO PCT/JP2010/073789 patent/WO2011083736A1/en active Application Filing
-
2011
- 2011-01-05 TW TW100100301A patent/TW201132647A/en unknown
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS424387Y1 (en) * | 1965-12-13 | 1967-03-09 | ||
| JPH024387Y2 (en) * | 1986-01-24 | 1990-02-01 | ||
| CN101595068A (en) * | 2007-01-31 | 2009-12-02 | 旭硝子株式会社 | Glass-making processes and vacuum degassing apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2011083736A1 (en) | 2013-05-13 |
| TW201132647A (en) | 2011-10-01 |
| KR20120121874A (en) | 2012-11-06 |
| WO2011083736A1 (en) | 2011-07-14 |
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Application publication date: 20120919 |