CN102897996B - Glass-making processes - Google Patents
Glass-making processes Download PDFInfo
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- CN102897996B CN102897996B CN201210265450.4A CN201210265450A CN102897996B CN 102897996 B CN102897996 B CN 102897996B CN 201210265450 A CN201210265450 A CN 201210265450A CN 102897996 B CN102897996 B CN 102897996B
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- electrode
- glass
- calciner
- manufacture method
- refractory body
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/02—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in electric furnaces, e.g. by dielectric heating
- C03B5/027—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in electric furnaces, e.g. by dielectric heating by passing an electric current between electrodes immersed in the glass bath, i.e. by direct resistance heating
- C03B5/03—Tank furnaces
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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
- C03B5/167—Means for preventing damage to equipment, e.g. by molten glass, hot gases, batches
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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
- C03B5/42—Details of construction of furnace walls, e.g. to prevent corrosion; Use of materials for furnace walls
- C03B5/425—Preventing corrosion or erosion
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Glass Melting And Manufacturing (AREA)
- Glass Compositions (AREA)
Abstract
The invention provides a kind of manufacture method of glass, it can make the life of stove, and described stove and accessory has the wall being provided with electrode.The present invention is a kind of manufacture method of glass, and wherein, being directed into by frit in calciner thus being melted by glass, described calciner possesses the wall obtained by assembling the resistivity against fire brick 111c of at least one pair of electrode 200 and more than 2.The electrode 201a forming electrode 200 contains stannic oxide in raw material composition.The feature of the manufacture method of described glass is, the mode utilizing resistivity against fire brick 111c around can carry out movement according to electrode 201a carrys out holding electrode, and the front end of holding electrode 201 is at preposition.
Description
Technical field
The present invention relates to the manufacture method of glass.In addition, the invention still further relates to the manufacture method of the glass substrate of the glass substrate of flat-panel monitor (FPD), particularly liquid-crystal display (LCD).
Background technology
In the past, used the radiant heat of gas flame and direct-electrifying mode as the heating means of melten glass in glass calciner.In direct-electrifying mode, be energized between relative electrode to melten glass, melten glass is heated because of the joule heating produced during energising.
In the manufacture of the glass of the glass substrate of described FPD, also use described gas flame and direct-electrifying mode as the heating means of melten glass.
But, a small amount of glass or the non-alkali glass of essence not containing alkali metal component are restricted to for the alkali metal-containing component in the glass substrate of FPD, its resistance is high, therefore in order to carry out the heating (direct-electrifying heating) based on direct-electrifying mode, need electrode is maximized.Now, as the electrode of direct-electrifying heating for rare metal and price is high, therefore there is Cost Problems when making electrode maximize in the platinum that uses in the past.In patent documentation 1 (Japanese Unexamined Patent Publication 2003-292323), stannic oxide or molybdenum are used for electrode, compared with platinum, described stannic oxide or molybdenum are cheap electrode materialss.
Prior art document
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 2003-292323
Summary of the invention
The problem that invention will solve
But, use the electrode of stannic oxide or molybdenum to there is following problems: the part contacted with melten glass loss because of erosion.In general, glass calciner is the structure obtained by assembling refractory body, is inserted into the wall of glass calciner under the state that described stannic oxide or molybdenum electrode are surrounded by resistivity against fire thing around.Now, if the loss because of erosion of described stannic oxide or molybdenum electrode, then assemble the refractory body slump on described stannic oxide or molybdenum electrode, make described glass calciner use sometimes.
Therefore, problem of the present invention is for providing a kind of manufacture method of glass, and it can make the life of the stove possessing electrode.
For the measure of dealing with problems
The manufacture method of glass of the present invention is the manufacture method of the glass being directed into by frit in calciner thus being melted by glass, the refractory body of at least pair of electrodes and more than 2 carries out assembling obtaining by described calciner, the feature of the manufacture method of this glass is, described pair of electrodes is made up of the material containing the metal at high temperature with electroconductibility, and kept by the refractory body of surrounding, electrode can move under pushing, makes the front end of electrode at preposition.
In addition, electrode can carry out moving and make the front end of electrode at preposition under pushing, even if therefore electrode suffers erosion, also can prevent the slump of the refractory body assembled on electrode.Therefore, the present invention can provide a kind of manufacture method that can make to possess the glass of the life of the glass calciner of electrode.In addition, described preposition preferably refers to the position that the front end of electrode is the near wall of the inner side of glass calciner.As long as the front end of electrode is positioned at the near wall of the inner side of described glass calciner, even if electrode suffers erosion, the refractory body assembled on electrode also can not slump.
In addition, in the manufacture method of glass of the present invention, the described metal at high temperature with electroconductibility preferably comprises at least one be selected from stannic oxide, molybdenum, zirconium white.
In addition, in the manufacture method of glass of the present invention, in calciner, preferably implement the slump Prevention method of described refractory body.
In addition, in the manufacture method of glass of the present invention, described slump Prevention method is preferably adjacent to the rear of described electrode and configures other electrode.
In addition, in the manufacture method of glass of the present invention, the temperature of melten glass in calciner is preferably more than 1500 DEG C.
In addition, in the manufacture method of glass of the present invention, electrode carries out integration and the complex body obtained preferably by the electrode of more than 2.
In addition, preferably, electrode is the complex body obtained by carrying out integration to the electrode of more than 2 to the manufacture method of glass of the present invention, and pushes from the outside of calciner.
In addition, the manufacture method of glass of the present invention is the manufacture method of the glass being directed into by frit in calciner thus being melted by glass, the refractory body of at least pair of electrodes and more than 2 carries out assembling obtaining by described calciner, wherein, described pair of electrodes is made up of the material containing the metal with electroconductibility, the manufacture method of this glass comprises following operation: kept by the refractory body by surrounding and can the electrode of movement when moving to preposition, the glass in gap of the described refractory body being present in described electrode and surrounding is heated, described electrode is maintained at the front end of electrode at preposition.
In addition, the manufacture method of glass of the present invention is the manufacture method of the glass being directed into by frit in calciner thus being melted by glass, the refractory body of at least pair of electrodes and more than 2 carries out assembling obtaining by described calciner, wherein, described pair of electrodes is made up of the material containing the metal with electroconductibility, electrode keeps the resistibility of pressure in the glass in calciner by being endowed, and the front end of holding electrode is positioned at preposition.
In addition, in the manufacture method of glass of the present invention, be sheet by the glass ware forming obtained, the glass substrate of flat-panel monitor can be manufactured thus.
As long as use the manufacture method of glass of the present invention, a kind of manufacture method of glass just can be provided, wherein, in the glass calciner possessing electrode, even if the loss because of the erosion of melten glass of described electrode, assembling refractory body on electrode also can not slump, can make the life of stove.
Accompanying drawing explanation
Fig. 1 is the block diagram of the manufacturing installation of glass and the schema of glass manufacture operation.
Fig. 2 is the details drawing melting groove (calciner).
Fig. 3 is the details drawing of electrode.
Fig. 4 is the schematic diagram of electrode movement.
Fig. 5 is the schematic diagram of additional new electrode.
Fig. 6 is the schematic diagram of variation.
Embodiment
Below, with reference to accompanying drawing, an embodiment of the invention are described.It should be noted that, the following description relates to an example of the present invention, and the present invention is also not limited by it.
(1) overall formation
Below, as an embodiment of the manufacture method of glass of the present invention, the manufacture method of the sheet glass of the glass substrate of flat-panel monitor is described.
(1-1) frit
In order to manufacture sheet glass according to the present invention, first according to desired glass composition, frit is mixed.Such as, when manufacturing the glass substrate of flat-panel monitor, particularly liquid-crystal display (LCD), it is suitable for mixing raw material according to the mode with following composition.
(a) SiO
2: 50 quality % ~ 70 quality %,
(b) B
2o
3: 5 quality % ~ 18 quality %,
(c) Al
2o
3: 10 quality % ~ 25 quality %,
(d) MgO:0 quality % ~ 10 quality %,
(e) CaO:0 quality % ~ 20 quality %,
(f) SrO:0 quality % ~ 20 quality %,
(o) BaO:0 quality % ~ 10 quality %,
(p) RO:5 quality % ~ 20 quality % (wherein, R is at least one being selected from Mg, Ca, Sr and Ba),
(q) R ' 2O:0 quality % ~ 2.0 quality % (wherein, R ' is at least one being selected from Li, Na and K),
R at least one metal oxide that () is selected from stannic oxide, ferric oxide and Cs2O etc. adds up to 0.05 quality % ~ 1.5 quality %.
(1-2) summary of glass manufacture operation
Below, with reference to Fig. 1, the summary of each operation for the manufacture of glass is described.
First carrying out melting operation, in this operation, by the raw material supplying of the glass mixed according to described composition to melting in groove 101, and being heated to more than 1500 DEG C.Raw material after heating melts and becomes melten glass.
In ensuing clarification operation, clarifying tank 102 is used to clarify described melten glass.Specifically, heat in clarifying tank 102 to melten glass, gaseous constituent contained in melten glass forms bubble or vaporizes and shed outside melten glass.
In ensuing agitating procedure, in steel basin 103, the stirring rake (not shown) possessed by steel basin 103 is stirred melten glass thus makes it homogenize.
In ensuing molding procedure, supply melten glass to shaped device 104.In shaped device 104, glass is formed as the glass of tabular.In the present embodiment, melten glass is by drawing method (オ ー バ ー フ ロ ー ダ ウ Application ド ロ ー method under overflow) and be shaped to sheet continuously.The glass of the sheet after shaping by severing, thus forms sheet glass.
(2) form in detail
(2-1) groove is melted detailed
Below, with reference to Fig. 2, melting groove 101 is described.
Melt groove 101 and possess the liquid bath B and upper space A that are made up of refractory bodies such as resistivity against fire bricks.Melt the formation that groove 101 is the resistivity against fire brick 111c having assembled paired electrode 200 (one of them is also not shown) and more than 2, described electrode and described resistivity against fire brick are the components forming described melting groove.The wall of the upper space A of melting groove 101 is provided with burner 300, and this burner 300 sends flame by making the gaseous combustion such as fuel and oxygen.For burner 300, by the gas of burning, the refractory body forming upper space A is heated, and utilize the radiant heat sent by the refractory body of high temperature to carry out heating to frit to make it melt.In liquid bath B, relative 2 walls 111a, 111b are provided with 2 to above paired electrode 200 (one of them is also not shown).Paired electrode 200 (one of them is also not shown) is arranged at wall 111a, 111b of the mutual opposition of the liquid bath B melting groove 101.Specifically, at wall 111a, each position relative with the electrode 200 being arranged at wall 111b is provided with not shown electrode 200.Herein, electrode 200 to being divided into positive electrode and negative potential, and be the structure of circulating current between positive and negative electrode.In addition, now also can by positive and negative total electrode being arranged at the bottom surface of liquid bath B and becoming the paired structure of the positive and negative total electrode of the electrode of wall and bottom surface.The situation being provided with 3 pairs of electrodes 200 (wherein side not shown) has been shown in Fig. 2.Utilize paired electrode 200, melten glass is energized, produce joule heating by melten glass self.In melting groove 101, melten glass is heated to more than 1500 DEG C.
As shown in Figure 3, wall 111 is by being undertaken assembling forming by the resistivity against fire brick 111c of more than 2 and electrode 201a.For electrode 200, it is by assembling and shape all-in-one-piece electrode 200 the electrode 201a of more than 2, is inserted by electrode 200 between resistivity against fire brick 111c, and is kept by resistivity against fire brick 111c.Specifically, the electrode 201a of more than 2 described later of electrode 200 assembles on resistivity against fire brick 111c.The electrode 201a of more than 2 is assembled further on electrode 201a more than 2.Around electrode 201a after assembling, assembled resistivity against fire brick 111c, it is for holding electrode 201a.Further, on this electrode 201a, resistivity against fire brick 111c has also been assembled.The shape of resistivity against fire brick 111c separately roughly in rectangular parallelepiped, electrode 201a is also roughly in rectangular parallelepiped.Resistivity against fire brick 111c and electrode 201a connects in respective plane.The angle that this adjacent plane is formed each other is 90 ° or about 90 °.Therefore, between electrode 201a and resistivity against fire brick 111c, almost space cannot be formed.Melt groove 101 and be subject to melting melten glass G in groove 101 to melting the outside pressure of groove 101.Therefore, melt the outer wall of groove 101, utilize not shown screw block etc. to apply to push to melt the certain pressure in groove 101.It should be noted that, between the respective resistivity against fire brick 111c assembled and respective electrode 201a, do not use the material as adhesives, but can adhesives be used as required.
(2-2) electrode is detailed
With reference to Fig. 3, electrode 200 and electrode 201a are described.It should be noted that, below, in melting groove 101, using wall 111 as starting point, there is the side of melten glass G as interior or inner side, using the opposition side inside this as outer or outside.
Fig. 3 is the schematic diagram amplified the wall 111 of the part being configured with electrode 200.As shown in Figure 3, electrode 200 has multiple electrode 201a.Electrode 201a be made up of stannic oxide fire thing or fire thing containing stannic oxide as principal constituent, it is in the shape close to rectangular parallelepiped.On one end (below as end) of the length direction of electrode 201a, the metal junctor 202 for being connected with power supply by electrode 201a is installed.According to terminal surface to outside wall 111, relative with the end of the electrode 201a the other end (below as front end) is towards melten glass G and be more positioned at the mode of inner side than wall 111, electrode 201a is inserted between resistivity against fire brick 111c.Electrode 200 shown in Fig. 3 has totally 12 electrode 201a, vertical direction piles 4 layers, every layer of horizontal 3 electrode 201a.The front end of each electrode 201a is arranged according to the mode being positioned at the identical position of vertical plane (the wall X shown in Fig. 4) that wall 111 and the melten glass melting groove 101 connect or the position that more protrudes from melten glass G compared with wall X.
It should be noted that, the front end of the electrode 201a connected with melten glass G subjects because of the melten glass melted in groove 101 and makes it to the pressure melted outside groove 101.Therefore, at the end of electrode 201a, utilize not shown screw block etc. to apply to push to melt the certain pressure in groove 101.That is, electrode presses resistance forces to keep by giving in the melten glass melting in groove 101.
(2-3) the slump Prevention method of refractory body
Below, the slump Prevention method for refractory body of the present invention is described.It should be noted that, below, in melting groove 101, using wall 111 as starting point, to have the side of melten glass G as interior or inner side, using the opposition side inside this as outer or outside.
As mentioned above, use melting groove 101 that melten glass is heated to more than 1500 DEG C, but the joule heating that electrode 201a also can produce because of energising or heated with the contact of the melten glass of high temperature, described electrode 201a is for forming the electrode 200 be energized to melten glass.If suffered erosion and loss by the electrode 201a heated, then compared with wall X, the front end of electrode 201a can be positioned at more lateral.As mentioned above, the resistivity against fire brick 111c of more than 2 is assembled on electrode 201a.Therefore, if electrode 201a loss, then the resistivity against fire brick 111c assembled thereon has the danger of slump.In addition, under the front end of electrode 201a to be positioned at outside more state than wall X, compared with melten glass, the resistivity against fire brick 111c be more prone to forming wall 111 is energized, wall 111 from be provided with electrode 200 part surrounding be etched.
Therefore, adjust, make the position identical with wall X, the position of the front end of electrode 201a or be more positioned at inner side than wall X, namely protrude from melten glass side, can not be positioned at because of erosion and loss than wall X outside more to make the front end of electrode 201a.Specifically, first electrode 201a is heated.Electrode 201a is cooled by being blown into air from end, as long as therefore stop this cooling just can heat electrode 201a.As mentioned above, between electrode 201a and resistivity against fire brick 111c, almost there is no space, even but like this, have a small amount of melten glass yet and invade, solidify between electrode 201a and resistivity against fire brick 111c.By heating electrode 201, can, by this glass heats, its viscosity be declined.Glass after viscosity declines becomes the lubrication material of the friction relaxed between electrode 201a and resistivity against fire brick 111c.Then, utilize screw block etc., by the electrode 201a of more than 2 together in wall 111 outward walls 111, namely the melten glass melted in groove promote.Now, equably the electrode 201a of more than 2 is pushed from calciner.For described pushing, Worm jack can be used to the pushing needed for the movement obtaining electrode 201.In addition, for described required pushing, required load can be calculated by the melten glass hydraulic pressure in stove, oxidizing electrode weight.Thereby, it is possible to prevent the slump of slump, the i.e. wall 111 of melting groove 101 of the resistivity against fire brick 111c assembled on electrode 201a as much as possible.But if electrode 201a continues to suffer erosion, final electrode 201a can be depleted, no longer include can move to wall X or in contrast more inner side electrode 201a.Therefore, new electrode is configured at the rear of electrode 200.Specifically, such as shown in Fig. 5 (a), suffer erosion and loss at electrode 201a, after or before the end of electrode 201a is no longer outstanding from the face in the outside of wall 111, as shown in Fig. 5 (b), the new electrode 201 i.e. electrode 201b being different from electrode 201a is set, makes the joining distal ends of its front end and electrode 201a.That is, new other electrode 201b is supplemented at the end of the electrode 201a both deposited.If the electrode 201b supplemented is etched and is subject to loss, then repeatedly can carry out supplementing of new electrode 201b.Thus, even if the lifetime expires of electrode 201a, the slump of the slump of resistivity against fire brick 111c, i.e. wall 111 also can be prevented as much as possible.That is, the life of electrode 200 and melting groove 101 can be made.
When new other electrode 201b is supplemented to the end of electrode 201a, the junctor 202 being installed on the end of electrode 201a is respectively removed.After new other electrode 201b is supplemented to the end of electrode 201a, junctor 202 is installed on the end of supplementary electrode 201b.Utilize screw block etc., with certain pressure, the end of supplementary electrode 201b is pushed to the end of electrode 201a, thus the front end of the end of electrode 201a and electrode 201b is connected.
It should be noted that, during junctor 202 is removed, the energising from this electrode 200 must be stopped, but as being configured with 2 to shown in Fig. 2 of above electrode 200, when possessing the melting groove 101 of 3 pairs of electrodes 200, supplementing of new electrode 201 can be carried out respectively to every pair of electrodes 200.Thus, under the condition of temperature not reducing melten glass G as far as possible, supplementing of electrode 201 can be carried out.
(3) feature
(3-1)
In said embodiment, electrode 200 is arranged between the resistivity against fire brick 111c that assembles, and is kept by resistivity against fire brick 111c.That is, electrode 200 directly connects with resistivity against fire brick 111c.Thus, can make as far as possible the wall 111 of melting groove 101 does not form space.
(3-2)
In said embodiment, if the electrode 201 forming electrode 200 is etched and loss, then electrode 201a is moved to the melten glass G side melted in groove 101, make the front end of electrode 201a be in preposition.Preposition refers to that the front end of electrode is in the position of the near wall of the inner side of glass calciner.Specifically, the position for the position identical with the wall X of the inner side of wall 111 or inner side more is in contrast expected in the position of the near wall of the inner side of glass calciner, as long as the position of the degree of slump can not be there is in the resistivity against fire brick 111c assembled, also can be than wall 111 wall X more outside position.Thereby, it is possible to prevent the slump of the resistivity against fire brick 111c of wall 111 as much as possible, make the life of melting groove 101.It should be noted that, if compared with the wall X of the inner side of wall 111, the front end of electrode too protrudes from inner side, then the erosion quantitative change of electrode is many, the lifetime of electrode, is less desirable from the viewpoint in the life-span extending calciner.
(3-3)
In said embodiment, new electrode 201b is supplemented to the end of electrode 201a.That is, be adjacent to the rear of electrode 200 and be configured with other electrode.That is, even if electrode 201a loss, by supplementing the electrode 201b as new electrode 201 one by one, the life-span of electrode 200 can be extended.Thus, the slump of the resistivity against fire brick 111c of wall 111 can be prevented as much as possible, make the life of melting groove 101.
(3-4)
In said embodiment, electrode 200 is made up of the electrode 201 of more than 2.Thus, can by the large electrode 200 of easy method constituent ratio electrode 201 separately.
(4) variation
(4-1)
In the above-described embodiment, when new electrode 201b is supplemented to the end of electrode 201a, the junctor 202 being installed on this end must be removed.But, in other embodiments, can for being more prone to the formation of removing junctor 202.Such as, as shown in Figure 6, the junctor 204 of the electrode 201 of more than 2 together can being installed on the basket etc. of one and forming connector unit 203, utilizing screw block etc., pushing with the end of mode to electrode 201 of the joining distal ends of electrode 201 according to making this connector unit 203.Specifically, such as the metal junctor 204 of more than 2 is installed on the elongated component of system of metal or wood etc. being insulated to be barricaded as on cancellate basket.Arrange mode at grade according to the junctors 204 of more than 2 with the contact portions of electrode 201, junctor 204 is installed on this cancellate basket.According to the interval identical with the assortment of multiple electrodes 201 that has of electrode 200 to the junctor 204 of more than 2 and the contact portions of electrode 201 be configured.For the connector unit 203 so formed, utilize screw block etc., push according to the end of mode to electrode 201 of the described contact portions of each junctor 204 and the joining distal ends of each electrode 201.Thereby, it is possible to unified by the junctor 204 of the electrode 201 of more than 2 and load and unload rapidly, supplementing of electrode 201 can be carried out rapidly.Therefore, it is possible to carry out supplementing of electrode 201 under the condition of temperature not reducing the melten glass G melted in groove 101 as far as possible.
(4-2)
In the above-described embodiment, electrode 201 is stannic oxide system.But in other embodiments, as long as electrode 201 is the metals at high temperature with electroconductibility, also can be other metal, electrode 201 be preferably containing at least one be selected from stannic oxide, molybdenum, zirconium white.
(4-3)
In above-mentioned embodiment, electrode 201 is fast to melten glass G stripping, then the lifetime of electrode 201 and calciner 101, so preferably reduce the stripping quantity of electrode 201.Because the temperature of electrode 201 is higher, then the stripping quantity of electrode 201 is larger, so can be suppressed the stripping quantity of electrode 201 by the temperature reducing electrode 201.
In order to reduce the stripping quantity of electrode 201, preferably the front end of electrode 201 being arranged on the position identical with wall X or being in a ratio of the position in outside with wall X.Wall X is the inner-wall surface of calciner 101, and it is the surface of the resistivity against fire brick 111c contacted with melten glass G." position identical with wall X " refers to from wall X to the shortest distance of the front end of electrode 201 less than 5mm." be in a ratio of outside with wall X " and refer to that the front end of electrode 201 is arranged on preferably apart from the outside of more than wall X5mm, more preferably apart from the outside of more than wall X7mm, further preferably apart from the outside of more than wall X10mm.In addition, in order to prevent melten glass G from spilling from calciner 101, the front end of preferred electrode 201 is apart from more than outside wall surface 10mm, more preferably more than the 15mm of calciner 101, further preferred more than 20mm.
By electrode 201 being arranged on the position identical with wall X or being in a ratio of the position in outside with wall X, the contact area of electrode 201 and melten glass G diminishes, and because the front end of electrode 201 is close to the outside wall surface of the temperature calciner 101 lower than melten glass G, so the temperature on the surface of the electrode 201 contacted with melten glass G can be reduced, reduce the stripping quantity of electrode 201.In addition, can also cool the outside wall surface of calciner 101.Further, in this case, the current density flowing into the bight of the tip of electrode 201 reduces, and the temperature step-down of the first vertex angle part of electrode 201, so can reduce the stripping quantity of electrode 201.
From the view point of the stripping quantity reducing electrode 201, preferably the front end of electrode 201 is arranged on the position being in a ratio of outside with wall X.Thus, compared with the front end of electrode 201 being arranged on the situation of the position identical with wall X, the temperature of electrode 201 can be reduced further, so the stripping of electrode 201 can be suppressed further.Such as, initial the front end of electrode 201 is arranged on the position being in a ratio of outside with wall X, along with the carrying out corroded, after the position of the front end of electrode 201 is more outer, now electrode 201 can be advanced inwards, and make the front end of electrode 201 be positioned at the position being in a ratio of outside with wall X.
In addition, from the view point of the stripping quantity reducing electrode 201 and resistivity against fire brick 111c, preferably the front end of electrode 201 is arranged on the position identical with wall X.When the front end of electrode 201 being arranged on the position being in a ratio of outside with wall X, the bight of resistivity against fire brick 111c suffers erosion more concentrated, large from the possibility of the impurity such as resistivity against fire brick 111c stripping zirconium, but by the front end of electrode 201 is arranged on the position identical with wall X, the generation of this situation can be suppressed.Such as, at first the front end of electrode 201 is arranged on the position identical with wall X, along with the carrying out corroded, the position of the front end of electrode 201 than wall X in the outer part after, now electrode 201 can be advanced inwards, and make the position of the front end of electrode 201 identical with wall X.
In addition, as other examples, at first the front end of electrode 201 can also be arranged on the position identical with wall X, along with the carrying out corroded, the front position of electrode 201 than wall X in the outer part after, now electrode 201 is advanced inwards, and make the front end of electrode 201 be positioned at the position being in a ratio of outside with wall X; In addition, at first the front end of electrode 201 can also be arranged the position that be in a ratio of outside with wall X, along with the carrying out corroded, after the front position of electrode 201 is more outer, electrode 201 is advanced inwards, and makes the front end of electrode 201 be positioned at the position identical with wall X.
Nomenclature
100 glass manufacturing apparatus
101 melt groove (calciner)
111,111a, 111b wall
111c resistivity against fire brick (refractory body)
200 electrodes
201,201a, 201b electrode
202,204 junctors
Claims (8)
1. a manufacture method for glass, it is the manufacture method of the glass being directed into by frit in calciner thus being melted by glass, and described calciner obtains by assembling the refractory body of at least one pair of electrode and more than 2, it is characterized in that,
Described pair of electrodes contains the metal at high temperature with electroconductibility,
Electrode is kept by the refractory body of surrounding, and can move under pushing, and keep making the front end of electrode at preposition, described predetermined position is in a ratio of inner side with the position identical with the face that melten glass contacts of described refractory body or with the face of described refractory body
In described calciner, implement the slump Prevention method of described refractory body, described slump Prevention method is that the rear being adjacent to described electrode configures other electrode.
2. the manufacture method of glass as claimed in claim 1, it is characterized in that, the described metal at high temperature with electroconductibility comprises at least one be selected from stannic oxide, molybdenum, zirconium white.
3. the manufacture method of glass as claimed in claim 1 or 2, it is characterized in that, the temperature of melten glass in described calciner is more than 1500 DEG C.
4. the manufacture method of glass as claimed in claim 1 or 2, is characterized in that, described electrode is the complex body carrying out integration to the electrode of more than 2 and obtain.
5. the manufacture method of glass as claimed in claim 1 or 2, is characterized in that, described electrode is the complex body carrying out integration to the electrode of more than 2 and obtain, and pushes from the outside of calciner this electrode.
6. a manufacture method for glass, it is the manufacture method of the glass being directed into by frit in calciner thus being melted by glass, and described calciner obtains by assembling the refractory body of pair of electrodes and more than 2, it is characterized in that,
Described pair of electrodes contains the metal at high temperature with electroconductibility,
The manufacture method of this glass comprises following operation: when electrode is moved to preposition, to be present in electrode and surrounding brick gap in glass heat, described electrode is kept by the refractory body of surrounding and can be moved, and make the front end of electrode at preposition, described predetermined position is in a ratio of inner side with the position identical with the face that melten glass contacts of described refractory body or with the face of described refractory body
In described calciner, implement the slump Prevention method of described refractory body, described slump Prevention method is that the rear being adjacent to described electrode configures other electrode.
7. a manufacture method for glass, it is the manufacture method of the glass being imported by frit in calciner thus melted by glass, and described calciner obtains by assembling the refractory body of at least one pair of electrode and more than 2, it is characterized in that,
Described pair of electrodes contains the metal at high temperature with electroconductibility,
Electrode keeps the resistibility of pressure in the glass in calciner by being endowed, and keep making the front end of electrode at preposition, described predetermined position is in a ratio of inner side with the position identical with the face that melten glass contacts of described refractory body or with the face of described refractory body
In described calciner, implement the slump Prevention method of described refractory body, described slump Prevention method is that the rear being adjacent to described electrode configures other electrode.
8. a manufacture method for the glass substrate of flat-panel monitor, wherein, it is sheet that the manufacture method of the glass used described in any one of claim 1 ~ 7 is manufactured the glass ware forming obtained, and manufactures the glass substrate of flat-panel monitor thus.
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| CN201510121874.7A CN104724901B (en) | 2011-07-27 | 2012-07-27 | Glass-making processes |
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| CN 201220370787 Expired - Lifetime CN202953919U (en) | 2011-07-27 | 2012-07-27 | Melting furnace |
| CN201210265450.4A Active CN102897996B (en) | 2011-07-27 | 2012-07-27 | Glass-making processes |
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| Country | Link |
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| JP (1) | JP5681677B2 (en) |
| KR (2) | KR101634417B1 (en) |
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| WO2014157349A1 (en) * | 2013-03-27 | 2014-10-02 | ＡｖａｎＳｔｒａｔｅ株式会社 | Method for manufacturing glass substrate and device for manufacturing glass substrate |
| JP6263354B2 (en) * | 2013-09-06 | 2018-01-17 | ＡｖａｎＳｔｒａｔｅ株式会社 | Glass melting apparatus and glass sheet manufacturing method |
| JP6263355B2 (en) * | 2013-09-06 | 2018-01-17 | ＡｖａｎＳｔｒａｔｅ株式会社 | Glass melting apparatus, glass sheet manufacturing apparatus, electrode for glass melting apparatus, and glass sheet manufacturing method |
| CN109399894B (en) * | 2018-11-14 | 2021-10-29 | 东旭光电科技股份有限公司 | Electrode brick propelling method for glass kiln |
| CN110698040A (en) * | 2019-10-12 | 2020-01-17 | 彩虹集团（邵阳）特种玻璃有限公司 | Butt joint method for cover plate glass tank furnace electrodes |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3634588A (en) * | 1970-05-28 | 1972-01-11 | Toledo Engineering Co Inc | Electric glass furnace |
| CN1469847A (en) * | 2000-10-18 | 2004-01-21 | ��ʥ�� | Electric glass melting furnace, with pivoting wall elements |
| CN101405231A (en) * | 2006-01-24 | 2009-04-08 | 肖特股份公司 | Method for temperature manipulation of a melt |
| CN102001815A (en) * | 2009-08-18 | 2011-04-06 | Hoya株式会社 | Glass manufacturing method, glass melting furnace and glass manufacturing device |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3391236A (en) * | 1965-07-06 | 1968-07-02 | Emhart Corp | Electrode holder for glass melting furnace |
| JPS6028644Y2 (en) * | 1981-07-24 | 1985-08-30 | 株式会社ニコン | Melting furnace electrode |
| JPS58156543A (en) * | 1982-03-12 | 1983-09-17 | Toshiba Corp | Production of molybdenum electrode structure |
| JPS5926930A (en) * | 1982-08-02 | 1984-02-13 | Toshiba Corp | Molybdenum electrode structure and its manufacture |
| JPS6053780A (en) * | 1983-09-05 | 1985-03-27 | 大同特殊鋼株式会社 | Controller for insertion of electrode into direct conductiontype melting treating furnace |
| JPH0648142B2 (en) * | 1989-04-04 | 1994-06-22 | 新日本製鐵株式会社 | Wall electrodes of DC arc furnace |
| JPH0594871A (en) * | 1991-09-30 | 1993-04-16 | Kawasaki Steel Corp | Bottom electrode device for dc electric furnace |
| JP2943512B2 (en) * | 1992-07-31 | 1999-08-30 | 日本電気株式会社 | Adaptive receiver |
| JP2003183031A (en) * | 2001-12-18 | 2003-07-03 | Nippon Electric Glass Co Ltd | Electric melting furnace for manufacturing glass fiber and method of melting glass for glass fiber |
| JP2003292323A (en) | 2002-04-01 | 2003-10-15 | Nippon Electric Glass Co Ltd | Glass-fusing furnace and glass-fusing method |
| JP2004315350A (en) * | 2003-04-01 | 2004-11-11 | Motoaki Miyazaki | Direct energizing glass melting deep bottom type furnace and method of clarifying/supplying glass |
| KR20070032607A (en) * | 2005-09-19 | 2007-03-22 | 쇼오트 아게 | Glass melting electrode and glass or glass ceramic melting method |
-
2012
- 2012-07-26 JP JP2012166385A patent/JP5681677B2/en active Active
- 2012-07-27 CN CN201510121874.7A patent/CN104724901B/en active Active
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- 2012-07-27 CN CN 201220370787 patent/CN202953919U/en not_active Expired - Lifetime
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3634588A (en) * | 1970-05-28 | 1972-01-11 | Toledo Engineering Co Inc | Electric glass furnace |
| CN1469847A (en) * | 2000-10-18 | 2004-01-21 | ��ʥ�� | Electric glass melting furnace, with pivoting wall elements |
| CN101405231A (en) * | 2006-01-24 | 2009-04-08 | 肖特股份公司 | Method for temperature manipulation of a melt |
| CN102001815A (en) * | 2009-08-18 | 2011-04-06 | Hoya株式会社 | Glass manufacturing method, glass melting furnace and glass manufacturing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN202953919U (en) | 2013-05-29 |
| TW201309610A (en) | 2013-03-01 |
| KR20130014037A (en) | 2013-02-06 |
| TWI636026B (en) | 2018-09-21 |
| TWI626224B (en) | 2018-06-11 |
| KR101634417B1 (en) | 2016-06-28 |
| TW201522257A (en) | 2015-06-16 |
| CN102897996A (en) | 2013-01-30 |
| CN104724901A (en) | 2015-06-24 |
| CN104724901B (en) | 2018-04-17 |
| JP5681677B2 (en) | 2015-03-11 |
| JP2013047172A (en) | 2013-03-07 |
| KR101760172B1 (en) | 2017-07-20 |
| KR20150035915A (en) | 2015-04-07 |
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