CN108455824A - The continuous melting crucible and melting method of resistance to glass attack - Google Patents
The continuous melting crucible and melting method of resistance to glass attack Download PDFInfo
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- CN108455824A CN108455824A CN201810316850.0A CN201810316850A CN108455824A CN 108455824 A CN108455824 A CN 108455824A CN 201810316850 A CN201810316850 A CN 201810316850A CN 108455824 A CN108455824 A CN 108455824A
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- crucible
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- glass
- melting
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- 239000011521 glass Substances 0.000 title claims abstract description 59
- 238000002844 melting Methods 0.000 title claims abstract description 56
- 230000008018 melting Effects 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 16
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims abstract description 122
- 229910052697 platinum Inorganic materials 0.000 claims abstract description 61
- 239000000463 material Substances 0.000 claims abstract description 26
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 21
- 239000011737 fluorine Substances 0.000 claims abstract description 21
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000000843 powder Substances 0.000 claims abstract description 14
- 238000003723 Smelting Methods 0.000 claims abstract description 13
- 229910010293 ceramic material Inorganic materials 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 239000012530 fluid Substances 0.000 claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims abstract description 5
- 238000005192 partition Methods 0.000 claims description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 15
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 13
- 229910052681 coesite Inorganic materials 0.000 claims description 12
- 229910052593 corundum Inorganic materials 0.000 claims description 12
- 229910052906 cristobalite Inorganic materials 0.000 claims description 12
- 239000000377 silicon dioxide Substances 0.000 claims description 12
- 229910052682 stishovite Inorganic materials 0.000 claims description 12
- 229910052905 tridymite Inorganic materials 0.000 claims description 12
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 4
- 229910006295 Si—Mo Inorganic materials 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 238000006424 Flood reaction Methods 0.000 claims 1
- 230000000630 rising effect Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- DWYMPOCYEZONEA-UHFFFAOYSA-L fluoridophosphate Chemical compound [O-]P([O-])(F)=O DWYMPOCYEZONEA-UHFFFAOYSA-L 0.000 abstract description 4
- 239000005304 optical glass Substances 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000004615 ingredient Substances 0.000 description 6
- 230000009172 bursting Effects 0.000 description 4
- 230000006698 induction Effects 0.000 description 4
- 150000001768 cations Chemical class 0.000 description 2
- 238000007499 fusion processing Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- C03B5/235—Heating the glass
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3418—Silicon oxide, silicic acids or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
- C04B2235/9669—Resistance against chemicals, e.g. against molten glass or molten salts
-
- 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
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Structural Engineering (AREA)
- Glass Compositions (AREA)
Abstract
The continuous melting crucible and melting method of the entitled resistance to glass attack of the present invention, belong to optical glass melting production equipment technology.It mainly solves the problems, such as to corrode platinum crucible wall when fluorophosphate fusing.It is mainly characterized by：Crucible, which includes that ceramic material is resistance to, invades cylinder, and resistance to cylinder of invading is equipped with seal groove and crucible lid, and resistance to cylinder of invading is stretched into from platinum crucible pan feeding port, and lower end to liquid level is hereinafter, platinum crucible bottom is equipped with communicating pipe or material leakage pipe；Method includes that platinum crucible is slowly 1. preheated to charge temperature, fills sealing fluid into seal groove, and when interval that feeds covers crucible lid；2. first rebasing glass dregs are added into platinum crucible, liquid level raising flood it is resistance to invade a lower end after, be initially added into powder carry out continuous smelting；3. the sufficient glass metal of melting is by entering stirring crucible communicating pipe or outpouring stove by the leakage of material leakage pipe.The present invention has the characteristics that improve the internal soundness of product, improve the yields of fluorine phosphorous glass product and reduce production cost, is mainly used for the continuous melting of fluorine phosphorous glass.
Description
Technical field
The invention belongs to optical glass melting technique field, it is related to a kind of continuous melting crucible of resistance to glass attack and is melted
Method, especially a kind of crucible and melting method for the production of fluorine phosphorous glass continuous melting.
Background technology
Fluorophosphate optical glass be it is a kind of it is low refraction, low dispersion special optical glass, secondary light spectrum color can be eliminated
Difference, the image quality for improving optical lens, while there is lower softening point, it can be made up of primary or secondary press aspherical
Lens are the better optical materials for producing advanced digital product.But fluorine phosphorous glass has because containing a large amount of fluoride ingredients
Strong volatility and aggressivity.
It is the glass raw material melting stage that the stage of most serious is corroded in fluorine phosphorous glass fusion process, and is corroded crucible body most tight
The position of weight is at metal level.Existing smelting equipment mostly uses platinum crucible and directly melts, and platinum crucible wall is held by fluorine phosphorous glass
It is continuous corrode after have micro platinum particle and enter glass and form platinate, and solubility pole of the platinic acid salt component in fluorine phosphorous glass
It is low, therefore cooling down heater stage platinate a large amount of foreign matters can be precipitated and formed from glass, influence the product of fluorine phosphorous glass product
Matter is even scrapped, meanwhile, it directly so that platinum material is generated certain loss using platinum crucible melting, cause product to give birth to indirectly
Cost is produced to increase.
Invention content
The object of the present invention is to provide a kind of continuous melting crucibles and melting method that resistance to fluorine phosphorous glass corrodes, for solving
Fluorophosphate improves the yields of fluorine phosphorous glass product, reduces production the problem of corroding platinum crucible wall the melting stage
Cost.
The technical solution of continuous melting crucible of the present invention is：A kind of continuous melting crucible of resistance to glass attack, is used for
Fluorine phosphorous glass is melted, including platinum crucible, it is characterised in that：Further include resistance to invading cylinder；It is described it is resistance to invade cylinder be ceramic material, including with platinum
The upright cylinder of golden crucible pan feeding port cooperation, cylinder upper end outside are equipped with seal groove and the crucible lid of cooperation；The resistance to cylinder of invading is from platinum
Golden crucible pan feeding port is stretched into, and seal groove is located at outside pan feeding port, below cylinder lower end to liquid level；Platinum crucible bottom, which is equipped with, to be connected
Siphunculus or material leakage pipe.
Platinum crucible bottom described in technical solution of the invention be equipped with upper end higher than it is resistance to invade a lower port, it is upright
Tubular partition board.
It is equipped in platinum crucible described in technical solution of the invention above communicating pipe or material leakage pipe, resistance to invades cylinder
Plate-shaped separators below lower port.
The resistance to ceramic material for invading cylinder described in technical solution of the invention is at being grouped as middle Al2O3>=80%, and
SiO2≤8%。
Resistance to cylinder of invading described in technical solution of the invention uses Al2O3For 85% and SiO2For 5%, Al2O3For 90% He
SiO2For 6% or Al2O3For 90% and SiO2It is made of 3% ceramic material.
The upper port of platinum crucible described in technical solution of the invention is externally provided with the resistance to supporting table for invading cylinder of support.
Seal groove described in technical solution of the invention is the annular seal pocket that section is U-shaped；The crucible lid
For aluminum crucible lid.
The technical solution of melting method of the present invention is：A kind of continuous melting using any of the above-described kind of resistance to glass attack
The melting method of crucible, it is characterised in that including following technological operation step：
Platinum crucible is slowly preheated to charge temperature, fills sealing fluid into the resistance to seal groove for invading cylinder, when interval that feeds covers
Crucible lid realizes the opposing seal of crucible；
Rebasing glass dregs are first added when charging into platinum crucible, after liquid level gradually rises and flood it is resistance to invade a lower end after, then
Start to be continuously added into powder progress continuous smelting, avoids powder in this way and be in direct contact platinum crucible crucible wall, avoid powder pair
The erosion on platinum surface；
The sufficient glass metal of melting is by entering stirring crucible communicating pipe or outpouring stove by the leakage of material leakage pipe.
In the technical solution of melting method of the present inventionPowder described in step before addition, needs to put it into
Baking oven preheats, and preheating temperature is not less than 300 DEG C.
Platinum crucible described in the technical solution of melting method of the present invention is radiated using Elema or Si-Mo rod
Formula heats.
Platinum crucible described in technical solution of the invention is used as continuously preparing the stock crucible of glass dregs using powder
Or the continuous induction melting furnace material crucible of continuous smelting is carried out using powder.
When smelting furnace is built by laying, resistance to cylinder of invading is inserted vertically into platinum crucible, and removal is facilitated to replace, and bottom is needed away from platinum crucible crucible bottom
There are gaps, and when carrying out fluorine phosphorous glass melting, a resistance to lower end of invading is in metal level or less.In order to weaken in fusion process
Ingredient volatilizees, and sealing fluid is filled to resistance to invade in the seal groove on cylinder before melting, and covering crucible lid after each charging realizes crucible
Opposing seal.
The occupation mode of the crucible is：Connected as the stock crucible for continuously preparing glass dregs using powder or using powder
The continuous induction melting furnace material crucible of continuous melting.When as stock crucible, clinker glass dregs preparation first is carried out using the crucible, reuses platinum
The crucible that golden material makes carries out glass dregs progress secondary smelting, molding mode the production of fluorine phosphorous glass.When as continuous smelting
When stove material crucible, glass melting at after glass metal by enter communicating pipe stirring crucible, clarifying chamber, work crucible after directly carry out material leakage
Molding.
Reduce that ceramics are resistance to invade bursting for cylinder although may be used when oven and slow down the mode of heating rate, because of such pottery
Ceramic material has the inherent characteristics of thermal-shock resistance difference and resistance to cylinder of invading is prevented to burst phenomenon from complete in glass melting process
It is avoided by.A resistance to fragment of invading after bursting in order to prevent enters and blocks communicating pipe or material leakage pipe, is provided in platinum crucible bottom
Upright tubular or disk shape partition board.It is resistance in order to prevent to invade a chips affect product quality, when as the stock for preparing glass dregs
When crucible, partition board cannot use planar in design.
The present invention can solve the problems, such as that fluorophosphate melting stage powder corrodes platinum crucible wall, improve the inside matter of product
Amount, reduces production cost at the yields for improving fluorine phosphorous glass product.
Description of the drawings
Fig. 1 is embodiment A sectional views.
Fig. 2 is embodiment B sectional views.
Fig. 3 is embodiment C sectional views.
In figure：1. platinum crucible；2. liquid level；3. supporting table；4. resistance to invade cylinder；5. sealing fluid；6. crucible lid；7. tubular
Partition board；8. communicating pipe；9. material leakage pipe；10. planar shaped partition board.
Specific implementation mode
A kind of continuous melting crucible of resistance to glass attack of the present invention is as shown in Figure 1 to Figure 3, and it is molten to be mainly used for fluorine phosphorous glass
System, including platinum crucible 1, supporting table 3, tubular partition board 7 or planar shaped partition board 10, resistance to invade cylinder 4 and crucible lid 6.Wherein, supporting table 3
On the outside of the upper port of platinum crucible 1, it is used to support and resistance to invades cylinder 4.It is resistance to invade cylinder 4 be ceramic material, including with 1 pan feeding port of platinum crucible
The upright cylinder of cooperation, cylinder upper end outside are equipped with seal groove and the crucible lid 6 of cooperation.Seal groove is the circle that section is U-shaped
Annular seal pocket, seal groove is interior to fill sealing fluid 5, and crucible lid 6 coordinates with the seal groove.Resistance to cylinder 4 of invading is stretched from 1 pan feeding port of platinum crucible
Enter, seal groove is located at outside pan feeding port, cylinder lower end to 2 or less liquid level.The resistance to ceramic material for invading cylinder 4 is at being grouped as middle Al2O3≥
80%, and SiO2≤8%.1 bottom of platinum crucible is equipped with communicating pipe 8 or material leakage pipe 9.1 bottom of platinum crucible is equipped with upper end and invades cylinder 4 higher than resistance to
Lower port, upright tubular partition board 7, as shown in Figure 1 and Figure 2.Be equipped in platinum crucible 1 above communicating pipe 8 or material leakage pipe 9,
The resistance to disk shape partition board 10 invaded below 4 lower port of cylinder, as shown in Figure 3.
Platinum crucible 1 and tubular partition board 7 or disk shape partition board 10, communicating pipe 8, material leakage pipe 9 are made using platinum material, melted
Stove carries out radiant type heating using Elema or Si-Mo rod, and first the stool there are material spilling hole is built by laying in the bottom in smelting furnace,
Platinum crucible 1 is sat to build and builds by laying supporting table 3 on pedestal, and on smelting furnace top, resistance to cylinder 4 of invading is inserted into platinum crucible 1, sealing is made
Slot falls in supporting table 3 and fixes, and seal groove is located at except furnace body after smelting furnace is built by laying.Fluorine phosphorus P series glass fusion temperature compared with
It is low（≤850℃）, the temperature at seal groove can be made to be less than 100 DEG C after by rational heat-insulated and crucible body drop design, because
This can inject water as sealing fluid into seal groove, realize the opposing seal of crucible when feeding interval.
Smelting furnace can oven after the completion of building by laying.Ceramic resistance to cylinder 4 of invading occurs bursting phenomenon in order to prevent, is reached in temperature
At 500 DEG C or more, oven heating rate need to be controlled in+25 DEG C/h or less.There is bursting phenomenon or by long-term use in resistance to cylinder 4 of invading
When being etched more serious, resistance to cylinder 4 of invading can be proposed that platinum crucible 1 carries out removal replacement, but needed in spare horse before replacement
Not new resistance to cylinder 4 of invading is preheated in stove, preheating temperature is not less than 300 DEG C, and resistance to invade in 4 installation process of cylinder must slowly, with caution
Operation.
A kind of melting method of continuous melting crucible using resistance to glass attack of the invention, including following technological operation step
Suddenly：
Platinum crucible 1 is slowly preheated to charge temperature, into the resistance to seal groove for invading cylinder 4 fill sealing fluid 5, feed interval when cover
Upper crucible lid 6, realizes the opposing seal of crucible；
Rebasing glass dregs are first added when charging into platinum crucible 1, after liquid level 2 gradually rises and flood it is resistance to invade 4 lower end of cylinder after,
Start to be continuously added into powder progress continuous smelting again；Before powder is added, need to put it into baking oven preheating, preheating temperature is not low
In 300 DEG C；
The sufficient glass metal of melting is by entering stirring crucible communicating pipe 8 or outpouring stove by the leakage of material leakage pipe 9.
Because usually containing Al in fluorine phosphorous glass formula3+Equal cations, so the present invention uses the ceramic material system of high alumina
Making the advantage of fusing crucible is：While effectively preventing platinum particle and fusing into glass, the cation of inside glass is matched
It will not produce bigger effect, the reasonable increase and decrease of corresponding ingredient need to be only carried out when glass raw material is prepared.
The embodiment of the present invention presented below is only used for the purpose of explanation and illustration, is not intended to limit the present invention.
Embodiment A：
As shown in Figure 1, using Al2O3It is 85%, and SiO2For 5% ceramic material be made it is resistance to invade cylinder 4, cylindric partition board 7 is using straight
Vertical tube shape is arranged, and continuous melting crucible is used as continuous induction melting furnace material crucible.After implementation, fluorine-containing ingredients from lossing obviously subtracts in product
Few, resistance to invade 4 service life of cylinder be 8 days, and 1 service life of platinum crucible is 6 months, and interiors of products platinum foreign matter is by 1.1/cm3Be down to 0.05/
cm3。
Embodiment B：
As shown in Fig. 2, using Al2O3It is 90%, and SiO2For 6% ceramic material be made it is resistance to invade cylinder 4, cylindric partition board 7 is using straight
Vertical tube shape is arranged, and continuous melting crucible is used as glass dregs stock crucible.After implementation, fluorine-containing ingredients from lossing obviously subtracts in product
Few, resistance to invade 4 service life of cylinder be 9 days, and 1 service life of platinum crucible is 6 months, and interiors of products platinum foreign matter is by 1.1/cm3Be down to 0.04/
cm3。
Embodiment C：
As shown in figure 3, using Al2O3It is 90%, and SiO2For 3% ceramic material be made it is resistance to invade cylinder 4, planar shaped partition board 10 uses
Circle setting, continuous melting crucible are used as continuous induction melting furnace material crucible.After implementation, fluorine-containing ingredients from lossing significantly reduces in product,
Resistance to invade 4 service life of cylinder be 12 days, and 1 service life of platinum crucible is 6 months, and interiors of products platinum foreign matter is by 1.1/cm3Be down to 0.01/
cm3。
Claims (10)
1. a kind of continuous melting crucible of resistance to glass attack is melted for fluorine phosphorous glass, including platinum crucible（1）, it is characterised in that：
Further include resistance to invading cylinder（4）；It is described resistance to invade cylinder（4）For ceramic material, including with platinum crucible（1）The upright barrel of pan feeding port cooperation
Body, cylinder upper end outside are equipped with seal groove and the crucible lid of cooperation（6）；It is described resistance to invade cylinder（4）From platinum crucible（1）It stretches pan feeding port
Enter, seal groove is located at outside pan feeding port, cylinder lower end to liquid level（2）Below；The platinum crucible（1）Bottom is equipped with communicating pipe（8）
Or material leakage pipe（9）.
2. a kind of continuous melting crucible of resistance to glass attack according to claim 1, it is characterised in that：The platinum crucible
（1）Bottom is equipped with upper end and invades cylinder higher than resistance to（4）Lower port, upright tubular partition board（7）.
3. a kind of continuous melting crucible of resistance to glass attack according to claim 1, it is characterised in that：The platinum crucible
（1）Interior be equipped with is located at communicating pipe（8）Or material leakage pipe（9）Cylinder resistance to is invaded in top（4）Planar shaped partition board below lower port（10）.
4. a kind of continuous melting crucible of resistance to glass attack according to claim 1,2 or 3, it is characterised in that：Described
It is resistance to invade cylinder（4）Ceramic material at being grouped as middle Al2O3>=80%, and SiO2≤8%。
5. a kind of continuous melting crucible of resistance to glass attack according to claim 4, it is characterised in that：It is described resistance to invade cylinder
（4）Using Al2O3For 85% and SiO2For 5%, Al2O3For 90% and SiO2For 6% or Al2O3For 90% and SiO2For 3% ceramics
Material is made.
6. a kind of continuous melting crucible of resistance to glass attack according to claim 1,2 or 3, it is characterised in that：Described
Platinum crucible（1）Upper port be externally provided with support and resistance to invade cylinder（4）Supporting table（3）.
7. a kind of continuous melting crucible of resistance to glass attack according to claim 1,2 or 3, it is characterised in that：Described
Seal groove is the annular seal pocket that section is U-shaped；The crucible lid is aluminum crucible lid（6）.
8. a kind of melting method using the continuous melting crucible of any resistance to glass attack in claim 1 to 7, feature exists
In including following technological operation step：
Slowly by platinum crucible（1）It is preheated to charge temperature, cylinder is invaded to resistance to（4）Seal groove in fill sealing fluid（5）, between charging
Crucible lid is covered when having a rest（6）, realize the opposing seal of crucible；
First to platinum crucible when charging（1）It is interior that rebasing glass dregs are added, in liquid level（2）After gradually rising and floods and resistance to invade cylinder（4）Under
Behind end, then start to be continuously added into powder progress continuous smelting；
The sufficient glass metal of melting passes through communicating pipe（8）Into stirring crucible or pass through material leakage pipe（9）Leakage outpours stove.
9. the melting method of the continuous melting crucible according to claim 8 using resistance to glass attack, it is characterised in that：ThePowder described in step before addition, needs to put it into baking oven preheating, preheating temperature is not less than 300 DEG C.
10. the continuous melting crucible and melting method of resistance to glass attack according to claim 8 or claim 9, it is characterised in that：Institute
The platinum crucible stated（1）Radiant type heating is carried out using Elema or Si-Mo rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810316850.0A CN108455824B (en) | 2018-04-10 | 2018-04-10 | Continuous melting crucible resistant to glass erosion and melting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810316850.0A CN108455824B (en) | 2018-04-10 | 2018-04-10 | Continuous melting crucible resistant to glass erosion and melting method |
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| Publication Number | Publication Date |
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| CN108455824A true CN108455824A (en) | 2018-08-28 |
| CN108455824B CN108455824B (en) | 2019-12-27 |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN102730936B (en) * | 2012-06-30 | 2015-04-29 | 珠海彩珠实业有限公司 | Tank furnace for melting glass |
| CN204385040U (en) * | 2014-08-08 | 2015-06-10 | 南通晶鑫光学玻璃有限公司 | A kind of opticglass smelting pot |
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| EP0087409A1 (en) * | 1981-08-24 | 1983-09-07 | CARMAN, Justice N. | Glass making furnace apparatus |
| CN1295037A (en) * | 2000-11-30 | 2001-05-16 | 中国科学院上海光学精密机械研究所 | Device for semi-continuously smelting phosphate glass |
| EP2365944A1 (en) * | 2008-12-15 | 2011-09-21 | Heraeus Quarzglas GmbH & Co. KG | Melting crucible for use in a crucible drawing method for quartz glass |
| CN102092919A (en) * | 2010-12-16 | 2011-06-15 | 武汉力诺太阳能集团股份有限公司 | Top-mounted electrode type all-electric melting furnace |
| CN102730936B (en) * | 2012-06-30 | 2015-04-29 | 珠海彩珠实业有限公司 | Tank furnace for melting glass |
| CN203173958U (en) * | 2013-03-28 | 2013-09-04 | 湖北新华光信息材料有限公司 | Optical glass smelting crucible |
| CN103951161A (en) * | 2014-05-10 | 2014-07-30 | 蚌埠玻璃工业设计研究院 | Device for maintaining easily-eroded part of sheet glass melting furnace pool wall |
| CN204385040U (en) * | 2014-08-08 | 2015-06-10 | 南通晶鑫光学玻璃有限公司 | A kind of opticglass smelting pot |
| CN204224428U (en) * | 2014-10-28 | 2015-03-25 | 远东光电股份有限公司 | A kind of glass furnace |
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| CN108455824B (en) | 2019-12-27 |
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