CN1948194B - Equipment and method used for improving glass quality - Google Patents
Equipment and method used for improving glass quality Download PDFInfo
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- CN1948194B CN1948194B CN200610107372XA CN200610107372A CN1948194B CN 1948194 B CN1948194 B CN 1948194B CN 200610107372X A CN200610107372X A CN 200610107372XA CN 200610107372 A CN200610107372 A CN 200610107372A CN 1948194 B CN1948194 B CN 1948194B
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- pipe connecting
- metal pipe
- refrigerating unit
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- 239000011521 glass Substances 0.000 title claims abstract description 130
- 238000000034 method Methods 0.000 title abstract description 16
- 239000000156 glass melt Substances 0.000 claims abstract description 53
- 238000001816 cooling Methods 0.000 claims abstract description 43
- 238000002844 melting Methods 0.000 claims abstract description 12
- 230000008018 melting Effects 0.000 claims abstract description 12
- 229910000510 noble metal Inorganic materials 0.000 claims abstract description 9
- 239000010970 precious metal Substances 0.000 claims description 148
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 19
- 229910052697 platinum Inorganic materials 0.000 claims description 9
- 239000012809 cooling fluid Substances 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 7
- 239000000155 melt Substances 0.000 claims description 7
- 229910001260 Pt alloy Inorganic materials 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 6
- 239000000110 cooling liquid Substances 0.000 claims description 6
- 125000006850 spacer group Chemical group 0.000 claims description 2
- 238000000048 melt cooling Methods 0.000 abstract description 2
- 238000003756 stirring Methods 0.000 abstract 1
- 239000000758 substrate Substances 0.000 description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 20
- 238000004519 manufacturing process Methods 0.000 description 19
- 230000007797 corrosion Effects 0.000 description 14
- 238000005260 corrosion Methods 0.000 description 14
- 238000012360 testing method Methods 0.000 description 10
- 239000002826 coolant Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 9
- 239000000498 cooling water Substances 0.000 description 8
- 238000000465 moulding Methods 0.000 description 8
- 239000011819 refractory material Substances 0.000 description 8
- 230000003245 working effect Effects 0.000 description 8
- 239000012530 fluid Substances 0.000 description 7
- 239000013078 crystal Substances 0.000 description 6
- 238000005336 cracking Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000005352 clarification Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 238000005816 glass manufacturing process Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000008234 soft water Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 230000004304 visual acuity Effects 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010835 comparative analysis Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- PXXKQOPKNFECSZ-UHFFFAOYSA-N platinum rhodium Chemical compound [Rh].[Pt] PXXKQOPKNFECSZ-UHFFFAOYSA-N 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000004901 spalling Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
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- Glass Compositions (AREA)
Abstract
The present invention discloses equipment for raising glass quality and its method, belonging to the field of glass melting and making technology. Said equipment includes glass melting furnace, glass melt clarifying basin, glass melt stirring device, glass melt cooling device, glass melt supplying device and glass product forming device. It is characterized by that on that external surface of noble metal connecting pipe between the glass melting furnace and glass melt clarifying basin a cooling device is added, when the described cooling device is worked at high temperature, it can make the glass melt be formed into a layer of glass protection layer on the inside wall of said noble metal connecting pipe so as to protect the noble metal connecting pipe and prolong the service life of noble metal channel.
Description
Technical field
The present invention relates to equipment and method that a kind of glass is made, in glass manufacturing process, improve equipment and method that glass furnace and glass melt the pipe connecting work-ing life between the body settling pond and reduces precious metal calculus in the glassy product in particular to a kind of.
Background of invention
In the manufacturing of the glass substrate of liquid-crystal display, thin film transistor (TFT) etc., the glass substrate of generation will satisfy the requirement that anti-about 600 ℃ high temperature, acidproof and alkalization are learned aspects such as burn into low density, low defective.Existing production glass substrate basic equipment comprises successively: glass furnace, settling pond device, whipping appts, refrigerating unit, provide the glass melt feeding mechanism and the molding device of glass melt to molding device.Generally, these devices or equipment are made as platinum or platinum alloy whole or in part by precious metal.When making the glass substrate of indicating meter, TFT etc., earlier the glass for preparing is manufactured raw material and place glass furnace to melt and the part clarification, then the glass melt that generates is transported to the settling pond device and clarifies in smelting furnace.After the glass melt clarification,, glass melt need be stirred in whipping appts to eliminate strip flaw in order to eliminate the intravital striped of glass melting.Because the mold temperature of glass substrate is lower than the temperature in the whipping appts, therefore before glass melt enters molding device, need lower the temperature to glass melt by refrigerating unit, make glass melt reach needed temperature of glass substrate forming and viscosity.Then provide glass melt to molding device by the glass melt feeding mechanism; Generate glass substrate at last.
In the manufacturing processed of glass substrate, preparing glass charge is fused into after glass melts body at glass furnace, glass melts body and has very high temperature, usually can not be lower than 1200 ℃, glass melts body and can reach more than 1600 ℃ in settling pond part local temperature, and glass melts body and have extremely strong corrosive nature under the pyritous situation, refractory materials is often melted the body corrosion by glass, the refractory materials that corrodes is melted to glass and melts and form refractory stone in the body, influences the quality of glassy product, reduces yield rate.For fear of the generation of this situation, one of method of solution just is to use the stronger refractory materials of corrosion resistance nature.Make after the refractory materials of making good use of, though reduced the refractory stone amount in the glassy product, after production after a while, the refractory materials corrosion resistance will descend.Two of the method that solves just is to use better refractory materials, and precious metal is applied to the production technique of glassy product owing to its remarkable high-temperature mechanical property.Noble metal platinum can be resisted the high temperature more than 1700 ℃, and the resistivity to glass corrosion under the pyritous situation is very strong, considerably beyond common refractory materials, therefore in the glass substrate manufacturing process in modern times, platinum or its alloy are applied on the manufacturing equipment of glassy product, particularly melt the place that body contacts, be applied to a large amount of noble metal platinums or platinum alloy with glass.Yet precious metal is because the content in the earth's crust is very low, the content of platinum in the earth's crust is 5/10000000ths, annual output is 5% of a gold, and the refinement of precious metal is also very difficult, so price is very high, in the manufacturing processed of glass substrate, can not resemble and use the common refractory, during actual glass substrate is produced, melt very thin that platinum parts that body contact all do with glass, common thickness at 0.5mm between the 2mm.
In traditional glass substrate producing apparatus, be applied to from glass furnace and melt the precious metal pipe connecting of body to glass clarifying pond water conservancy diversion glass, the precious metal pipe connecting is made by platinum or platinum alloy usually, and thickness is about 1mm.The interface of precious metal pipe connecting and glass furnace that is to say that the fluid port of glass furnace is positioned at the bottom of glass furnace, and it is very big to melt the pressure that body is subjected to regard to the glass that causes the fluid port place like this.The working temperature of precious metal pipe connecting is between 1350 ℃ to 1600 ℃, and the viscosity ratio of melting body at this temperature range glass is lower, and flowability is very strong.Above reason makes glass melt body and flows to the process of settling pond from glass furnace, and the flow velocity in the precious metal pipe connecting is bigger, in a whole set of precious metal equipment, becomes the place that glass melts rate of flow of fluid and pressure maximum.Will compare seriously the erosion corrosion of precious metal pipe connecting like this, special corner at glass furnace fluid port and precious metal pipe connecting, this erosion corrosion is more serious, and precious metal is worked under greater than the high-temperature condition more than 1000 ℃, it is big that crystal grain will become, thereby impel breaking of precious metal pipe connecting more, glass melts body will leak out the precious metal pipe connecting in the disruptive place, cause glass to melt body and be in the same place with the refractory materials mixed melting of precious metal pipe connecting outside, glass melts body and will be polluted.In the high corrosive environment of high temperature, work for a long time, precious metal also can take place with glass in composition some chemical transformation take place, make precious metal pipe connecting corrosion spalling.In the corner of glass furnace fluid port and precious metal pipe connecting, corrosion and disruptive situation are more serious especially, become place weak on the precious metal pipe connecting.
Manufacture in the glass substrate process in traditional method, particularly after the application of precious metal parts reaches 1 year, after effusive glass melts the inspection of body process test set from the precious metal pipe connecting, will find wherein to have the bright spot (also claiming flash-point) that obviously is different from glass ingredient, this is to incorporate glass after precious metal even is corroded to melt the precious metal calculus that body forms, the long more this precious metal calculus of time that the precious metal pipe connecting uses will be many more, and particle is increasing, have a strong impact on the final good article rate of this glass substrate, the precious metal parts are also caused serious destruction, make and produce the risk increase of carrying out.
In traditional glass substrate manufacturing processed, brand-new precious metal pipe connecting is after using some months, the disruptive situation will appear, and break and corrosion causes noble metal granule to incorporate glass to melt in the body, cause precious metal calculus defective, reduce the product quality of glass substrate, and along with the pipe connecting prolongation of duration of service, the precious metal calculus amount of generation will progressively increase, usually about 1 year, even less than year, precious metal calculus amount will be increased to the flagrant stage of glass substrate product, in order to guarantee the quality of product, has only the precious metal of replacing pipe connecting, cause the result of stopping production, cause very big loss to production.
Summary of the invention
The purpose of this invention is to provide a kind of equipment that improves glass quality, this equipment can prolong the work-ing life of precious metal pipe connecting, and reduces the precious metal calculus in the glass substrate product, improves the glassy product quality, reduce the risk of changing the precious metal pipe connecting, reduce production costs.
Another object of the present invention provides the manufacturing and the using method of this equipment; promptly on the outer wall of precious metal pipe connecting, added a cover refrigerating unit; make on the inwall of precious metal pipe connecting and form glassivation, protection precious metal pipe connecting is corroded, and prolongs the work-ing life of precious metal pipe connecting.
Technical scheme of the present invention is: a kind of equipment that is used to improve glass quality, comprise that glass furnace, glass melt body settling pond, precious metal pipe connecting, precious metal pipe connecting one end is connected with the liquid outlet of glass melting furnace bottom, the other end makes progress and melts the body settling pond with glass behind the bending turning and be communicated with, and adds refrigerating unit on the outer wall of precious metal pipe connecting.
Described refrigerating unit is to be sleeved on the outer cooling jacket of precious metal pipe connecting, is provided with cooling liquid outlet and cooling fluid inlet on cooling jacket.
In cooling jacket, be provided with one and be divided into two above independent cavity, on each chamber, all be provided with cooling liquid outlet and cooling fluid inlet with upper spacer.
Described refrigerating unit is located at the junction of precious metal pipe connecting and glass melting furnace bottom liquid outlet.
Described refrigerating unit is located at the bending corner of precious metal pipe connecting.
Described refrigerating unit is made by noble metal platinum or platinum alloy, and the thickness of refrigerating unit cooling jacket is that 0.5mm is to 2mm.
The cross section of described refrigerating unit cooling jacket can be circular, oval, square or Polygons.
Described refrigerating unit can weld together with the precious metal pipe connecting, also can be by being threaded or screw is fixed together.
A kind of method that is used to improve glass quality,
(a) melt and install cooling jacket additional outside the precious metal pipe connecting between the body settling pond and constitute refrigerating unit connecting glass furnace and glass, in the cooling jacket use ordinary tap water or industrial circulating water or soft water as cooling fluid,
(b) cooling-water flowing to the precious metal pipe connecting in glass melt the flow direction of body can be identical also can be opposite,
(C) melt before body flows into pipe connecting from glass furnace at glass, cooling fluid begins the circulation cooling.
The temperature of refrigerating unit internal cooling liquid inlet is 0 ℃ to 50 ℃, and the direction of described cooling fluid can flow by hoop.
Among the present invention; owing on the outer wall of precious metal pipe connecting, added a cover refrigerating unit; melt before body enters the precious metal pipe connecting at glass; water coolant in the refrigerating unit begins circulation the precious metal pipe connecting is cooled off; when glass melts body and flows in the precious metal pipe connecting from glass furnace; existence with cooling effect is arranged; glass will form glassivation on the precious metal pipe connecting has the inwall of refrigerating unit, the thickness of glassivation can be adjusted by temperature of cooling water and the cooling water circulation amount of adjusting the refrigerating unit inlet.The glassivation that forms on the precious metal pipe connecting inwall; can avoid glass to melt the direct corrosion of body to the precious metal pipe connecting; the weak place of precious metal pipe connecting is protected; so promptly reduced glass and melted the corrosion of body the precious metal pipe connecting; avoid precious metal corrosion particle that the pollution that glass melts body is formed the precious metal calculus again, improved the quality of glassy product.
Among the present invention, glass melts body and flows into before the precious metal pipe connecting, water coolant must begin circulation in refrigerating unit, otherwise, after glass melts body and flows into the precious metal pipe connecting, begin to allow the water coolant cooling that in refrigerating unit, circulates again, melt the temperature of body more than 1350 ℃ owing to precious metal pipe connecting wall temperature has reached glass, therefore will blast, damage.The selection of recirculated water is also very important, under the water hardness is not very high situation, can select industrial circulating water and ordinary tap water for use, if but water hardness is higher, will form a scale crust in the inside of refrigerating unit, the cooling performance of refrigerating unit is reduced, and the circulation of refrigerating unit in can stopping up, therefore under the water hardness condition with higher, select for use soft water as refrigerant.
Description of drawings
Fig. 1 is the schematic layout pattern of traditional glass manufacturing equipment,
Fig. 2 A is a refrigerating unit synoptic diagram of the present invention,
Fig. 2 B is a refrigerating unit enlarged diagram of the present invention,
Fig. 2 C be Fig. 2 B in the A-A cross section refrigerating unit schematic cross-section of the present invention,
Fig. 3 A is many cooling chamber synoptic diagram of embodiment of the present invention,
Fig. 3 B is the sectional view of Fig. 3 A in the A-A cross section.
Embodiment
Below in conjunction with the described embodiment of accompanying drawing glass-making processes of the present invention and equipment are described in further detail, wherein, the identical identical feature of numeral in institute's drawings attached.
At first, with reference to Fig. 1, Fig. 1 is the schematic layout pattern of traditional glass manufacturing equipment.This equipment comprises: glass furnace 1, glass clarifying pool device 2, glass melt body whipping appts 3, glass melts body refrigerating unit 4, provides the glass that glass melts body to melt body feeding mechanism 5 and molding device 6 to molding device.Generally, these devices or equipment are made as platinum or platinum alloy whole or in part by precious metal.When making the glass substrate of indicating meter, TFT etc., earlier the glass for preparing is manufactured raw material and place smelting furnace 1 to melt and the part clarification; Then the glass melt that generates in smelting furnace 1 being transported to settling pond 2 clarifies; After the glass melt clarification,, glass melt need be stirred in whipping appts 3 to eliminate strip flaw in order to eliminate the intravital striped of glass melting; Because the mold temperature of glass substrate is lower than the temperature in whipping appts 3, therefore before glass melt enters molding device 6, need to make glass melt reach needed temperature of glass substrate forming and viscosity by 4 pairs of glass melt coolings of refrigerating unit; Then provide glass melt to molding device 6 by glass melt feeding mechanism 5; Generate the glass substrate that needs at last.
Fig. 2 A is the precious metal pipe connecting refrigerating unit synoptic diagram that is applied among the present invention.Comprising: glass furnace 1, glass clarifying pond 2, precious metal pipe connecting 7, refrigerating unit (being cooling jacket) 8, cooling inlet (outlet) 9 and coolant outlet (inlet) 10, precious metal pipe connecting 7 one ends are connected with the liquid outlet of glass furnace 1 bottom, and the other end makes progress and melts body settling pond 2 with glass behind the bending turning and be communicated with.Refrigerating unit 8 can be located at the junction of precious metal pipe connecting and glass melting furnace bottom liquid outlet, also can be located at the bending corner of precious metal pipe connecting simultaneously.
According to embodiment of the present invention, glass melt body in glass furnace 1, melt finish after, flow along the direction of arrow 11 indications, precious metal pipe connecting 7 melts body with glass goes into glass from glass furnace 1 water conservancy diversion and melts body settling pond 2.Before glass melts body inflow precious metal pipe connecting 7, water coolant begins to cool off at refrigerating unit 8 internal recycle, glass melts body and flows into after the precious metal pipe connecting 7, because water coolant is to the cooling effect of precious metal pipe connecting 7 walls, precious metal pipe connecting 7 will melt body to wherein the glass of flowing through and cool off.The temperature that glass melts body is higher than 1350 ℃; and it is more liquid; under the situation that temperature reduces, will solidify formation glass, regulate the temperature of cooling water and the cooling water circulation flow of refrigerating unit 8 inlets, will on the inwall of precious metal pipe connecting 7, form the glassivation of different thickness.Weak place at the precious metal pipe connecting adds this refrigerating unit; the precious metal pipe connecting is protected; avoided breaking of precious metal pipe connecting; the precious metal pipe connecting precious metal that thereby having avoided is corroded gets off is dissolved into and is formed the precious metal calculus in the glass, has improved the quality of glass substrate product.
Fig. 2 B is the enlarged diagram of refrigerating unit 8 in Fig. 2 A circle.Wherein when needing cooling water circulation direction and glass to melt the flow direction of body when consistent, 9 imports, 10 outlets as cooling circulating water as cooling circulating water; Otherwise, 10 imports as cooling circulating water, 9 outlets as cooling circulating water, the direction of arrow 11 indications is that glass melts the flow direction of body in the precious metal pipe connecting.
Refrigerating unit 8 be the cross section of cooling jacket can be circular, oval, square or Polygons shown in Fig. 2 C.
Fig. 3 A is the synoptic diagram of many cooling chamber according to embodiments of the present invention.Wherein refrigerating unit 8 can be resolved into several separate chamber 12 by the dividing plate in the cooling jacket; cooling liquid outlet and the cooling of cooling fluid inlet independent loops that water coolant in each chamber is provided with by each chamber; when having avoided the circulation cooling; water coolant is because temperature variation causes the glassivation uneven distribution on the precious metal pipe connecting inwall; can reach better cooling performance, the glassivation that forms in the precious metal pipe connecting is more even.Owing to resolved into independently less cooling chamber 12; therefore the small profits protective layer of precious metal steel basin inside is easier to be adjusted; can better protection precious metal pipe connecting 7; effectively reduce the glass that in the precious metal pipe connecting, comes out and melt precious metal calculus the body, improve the quality of glass substrate product.The glassivation that forms can not be corroded by more effective protection precious metal pipe connecting, has prolonged the work-ing life of steel basin.
Fig. 3 B is the sectional view of Fig. 3 A in the A-A cross section.Wherein the direction of arrow 13 indications is the hoop circulation cooling direction of water coolant in the independent cooling chamber 12.More even for the glassivation that makes generation, two adjacent independent cooling chamber internal cooling water rings are preferably opposite to circulation cooling direction.
Embodiment of the present invention; owing on the precious metal pipe connecting, added refrigerating unit; when glass melts body from glass furnace importing precious metal pipe connecting; will on the inwall of precious metal pipe connecting, form one deck glassivation; the corrosion that glassivation has avoided the precious metal pipe connecting to be melted body by glass; avoided in the precious metal pipe connecting, forming a large amount of precious metal calculus, promptly prolonged the work-ing life of precious metal pipe connecting, improved the quality of glass substrate product again.
Provide this testing data and chart below according to several test examples of the present invention.
Test example 1
Cooling apparatus synoptic diagram shown in Fig. 2 A, wherein removing refrigerating unit is exactly traditional glass substrate producing apparatus synoptic diagram.In this test example, adopt two kinds of schemes, first kind for not adding cooling apparatus on the precious metal pipe connecting; Second kind for to add cooling apparatus on the precious metal pipe connecting, wherein cooling apparatus is manufactured by platinum, and thickness is that 0.5mm is to 2mm.Refrigerating unit inlet temperature of cooling water is 0 ℃ to 50 ℃.The data that collect in the routine implementation process are tested for this by bottom, wherein precious metal calculus quantity is to melt the body postcooling from precious metal pipe connecting outflow glass to become glass, add up the precious metal calculus quantity in the per kilogram glass then, and the precious metal quantity that collects is to be arriving in the inspection machine of 10 μ m in resolving power.
First kind of testing program:
Use after 3 months, the precious metal pipe connecting is intact; Use after 6 months the pipe connecting part that the strong condition situation of cracking is arranged; Use after 12 months, pipe connecting rimose position is more, and more serious at the exit of pipe connecting corner and glass furnace cracking, has carried out repair by welding for the first time; Use after 18 months pipe connecting cracking partial corrosion more serious, glass occurred and melted the phenomenon that body flows out pipe connecting (promptly running material), and the precious metal of precious metal pipe connecting is because crystal grain becomes big, local bulk precious metal comes off; Use after 24 months, the whole glass of precious metal pipe connecting melts body, and to flow out the pipe connecting phenomenon serious, particularly is connected tube wall in the exit of pipe connecting corner and glass furnace and breaks fully, need be from new replacing pipe connecting.
Table 1 tradition does not add precious metal calculus incremental data table in the per kilogram glass of production of refrigerating unit.
| Duration of service (moon) | 3 | ?6 | ?12 | ?18 | ?24 |
| Precious metal calculus amount (individual) | 2.1 | ?3 | ?5.7 | ?12.3 | ?17 |
Second kind of testing program:
Use after 3 months, the precious metal pipe connecting is intact.Use after 6 months the precious metal pipe connecting intact.Use after 12 months, there is slight crack the pipe connecting part, does not ftracture in the exit of pipe connecting corner and glass furnace, and protects intact.Use that precious metal pipe connecting local cracks prolongs a little after 18 months, precious metal crystal grain do not occur and become big and glass melts body and runs and expect phenomenon.Use after 24 months, local cracks has cracking phenomena, and the change of precious metal crystal grain is big, and slight race material phenomenon is arranged, but in the position that refrigerating unit is arranged, as glass furnace fluid port and precious metal pipe connecting corner, the precious metal protection of pipe is intact.After using embodiment of the present invention, reached 3.5 years the work-ing life of precious metal pipe connecting.
Table 2 uses the present invention to add precious metal calculus incremental data table in the per kilogram glass of production of refrigerating unit.
| Duration of service (moon) | 3 | ?6 | ?12 | ?18 | ?24 |
| Precious metal calculus amount (individual) | 0 | ?0.5 | ?1.1 | ?2.3 | ?5.2 |
In this test example, by above embodiment, we can comparative analysis, adopts embodiment of the present invention, the service condition of precious metal pipe connecting is improved greatly, and embodiment of the present invention are not adopted in breaking and will being lower than the influence that glassy product causes of precious metal pipe connecting.Adopt embodiment of the present invention to greatly reduce the precious metal pipe connecting and be corroded the back, improved the quality of glassy product the pollution of glassy product.
Test example 2
Cooling apparatus synoptic diagram as shown in Figure 3A; cooling apparatus is manufactured by platinum rhodium; and be divided into the several separate chamber; when glass melts body and flows through the precious metal pipe connecting; the precious metal pipe connecting is evenly cooled off; the glassivation that forms is more even; following data for collecting in the process of the test; wherein precious metal calculus quantity is to melt the body postcooling from precious metal pipe connecting outflow glass to become glass; add up the precious metal calculus quantity in the per kilogram glass then, and the precious metal quantity that collects is to be arriving in the inspection machine of 10 μ m in resolving power.
Precious metal pipe connecting situation in use is: use after 3 months, the precious metal pipe connecting is intact.Use after 6 months the precious metal pipe connecting intact.Use after 12 months, there is slight crack the pipe connecting part, does not ftracture in the exit of pipe connecting corner and glass furnace, and protects intact.Use that precious metal pipe connecting local cracks prolongs a little after 18 months, precious metal crystal grain do not occur and become big and glass melts body and runs and expect phenomenon.Use after 24 months, local cracks has cracking phenomena, and precious metal crystal grain becomes greatly a little, but runs the material phenomenon, and in the position that refrigerating unit is arranged, as glass furnace fluid port and precious metal pipe connecting corner, the precious metal protection of pipe is still intact.Use this and test that reached 4 years the work-ing life of precious metal pipe connecting after the routine embodiment.
After table 3 adopts embodiment of the present invention, precious metal calculus incremental data table in the per kilogram glass of production.
| Duration of service (moon) | 3 | ?6 | ?12 | ?18 | ?24 |
| Precious metal calculus amount (individual) | 0 | ?0 | ?0.8 | ?2 | ?4.7 |
After adopting the present embodiment, prolonged the work-ing life of precious metal pipe connecting and the glassy product produced in the quantity of precious metal calculus obtain decline.
Though this paper tests example and embodiments more of the present invention is described and illustrates these concrete embodiments are not to be used for the present invention is construed as limiting.We should be clear, under the situation of restricted portion, can carry out some modifications to the present invention in not departing from spirit intention of the present invention and claims.
Claims (6)
1. equipment that is used to improve glass quality, comprise that glass furnace, glass melt body settling pond, precious metal pipe connecting, precious metal pipe connecting one end is connected with the liquid outlet of glass melting furnace bottom, the other end makes progress and melts the body settling pond with glass behind the bending turning and be communicated with, and adds refrigerating unit on the outer wall of precious metal pipe connecting; Described refrigerating unit is to be sleeved on the outer cooling jacket of precious metal pipe connecting, is provided with cooling liquid outlet and cooling fluid inlet on cooling jacket; It is characterized in that, in cooling jacket, be provided with one and be divided into two above independent cavity, on each chamber, all be provided with cooling liquid outlet and cooling fluid inlet with upper spacer.
2. be used to improve the equipment of glass quality according to claim 1, it is characterized in that, described refrigerating unit is located at the junction of precious metal pipe connecting and glass melting furnace bottom liquid outlet.
3. as being used to improve the equipment of glass quality as described in the claim 2, it is characterized in that described refrigerating unit is located at the bending corner of precious metal pipe connecting.
4. as being used to improve the equipment of glass quality as described in the claim 3, it is characterized in that described refrigerating unit is made by noble metal platinum or platinum alloy, the thickness of refrigerating unit cooling jacket is that 0.5mm is to 2mm.
5. as being used to improve the equipment of glass quality as described in the claim 4, it is characterized in that the cross section of described refrigerating unit cooling jacket is circular, ellipse or Polygons.
6. as being used to improve the equipment of glass quality as described in the claim 5, it is characterized in that described refrigerating unit and precious metal pipe connecting weld together or by being threaded togather.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610107372XA CN1948194B (en) | 2006-11-01 | 2006-11-01 | Equipment and method used for improving glass quality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610107372XA CN1948194B (en) | 2006-11-01 | 2006-11-01 | Equipment and method used for improving glass quality |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1948194A CN1948194A (en) | 2007-04-18 |
| CN1948194B true CN1948194B (en) | 2010-09-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610107372XA Active CN1948194B (en) | 2006-11-01 | 2006-11-01 | Equipment and method used for improving glass quality |
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| KR101215733B1 (en) * | 2009-11-16 | 2012-12-26 | 아사히 가라스 가부시키가이샤 | Molten glass supply device |
| CN109734289A (en) * | 2019-03-19 | 2019-05-10 | 山东天舜环保科技有限公司 | High-performance special glass fiber integrated forming device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4466818A (en) * | 1981-06-16 | 1984-08-21 | U.S. Philips Corporation | Double crucible method of fabricating optical fibers |
| US4549895A (en) * | 1981-09-03 | 1985-10-29 | Hoya Corporation | Method and apparatus for melting glass |
| CN1759070A (en) * | 2003-03-13 | 2006-04-12 | 康宁股份有限公司 | Methods of manufacturing glass sheets with reduced blisters |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4466818A (en) * | 1981-06-16 | 1984-08-21 | U.S. Philips Corporation | Double crucible method of fabricating optical fibers |
| US4549895A (en) * | 1981-09-03 | 1985-10-29 | Hoya Corporation | Method and apparatus for melting glass |
| CN1759070A (en) * | 2003-03-13 | 2006-04-12 | 康宁股份有限公司 | Methods of manufacturing glass sheets with reduced blisters |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平6-329420A 1994.11.29 |
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