CN105502888B - The process units and its production method of the first fusant of glass - Google Patents
The process units and its production method of the first fusant of glass Download PDFInfo
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- CN105502888B CN105502888B CN201510918429.3A CN201510918429A CN105502888B CN 105502888 B CN105502888 B CN 105502888B CN 201510918429 A CN201510918429 A CN 201510918429A CN 105502888 B CN105502888 B CN 105502888B
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- raw material
- glass
- material runner
- fusant
- partition wall
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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
- C03B5/033—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in electric furnaces, e.g. by dielectric heating by using resistance heaters above or in the glass bath, i.e. by indirect resistance heating
-
- 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
- C03B5/23—Cooling the molten glass
-
- 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
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2211/00—Heating processes for glass melting in glass melting furnaces
- C03B2211/70—Skull melting, i.e. melting or refining in cooled wall crucibles or within solidified glass crust, e.g. in continuous walled vessels
- C03B2211/71—Skull melting, i.e. melting or refining in cooled wall crucibles or within solidified glass crust, e.g. in continuous walled vessels within segmented wall vessels where the molten glass solidifies between and seals the gaps between wall segments
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Compositions (AREA)
Abstract
A kind of service life of present invention offer is longer and is not susceptible to the process units of fusant at the beginning of making the glass of glass coloration because of the introducing of platinum ion.The process units of the first fusant of glass, including raw material runner, quartzy partition wall, coolant guiding channel and heater, the quartzy partition wall are arranged on raw material runner surrounding or top；The heater is arranged on surrounding or the top of quartzy partition wall；Described raw material runner one end is provided with material pouring inlet, and the other end is provided with feedstream outlet, and the raw material runner is hollow structure, inside sets coolant guiding channel.The present invention is melted to frit using radiant heating, and using the type of cooling by the way of raw material water passage surface forms glassy layer, avoid directly contacting raw material runner inner wall in melting process of raw material, so as to which the introducing of coloring ion be reduced or avoided, improve optical glass transmitance.
Description
Technical field
The present invention relates to a kind of process units of glass and its production method, more particularly, to melt at the beginning of a kind of glass
Process units and its production method.
Background technology
In optical glass preparation process, most of glass is to use secondary smelting method, i.e.,：Raw material is put into crucible
In carry out heating fusing, by homogenizing after fusing, formed to put into water after uniform glass metal and quenched, thus obtain incipient melting
Compound, then main molten will be carried out so as to produce optical glass in the first melt input platinum dish.The advantages of this method is
Raw material is by the way that after first melting, the erosion in main melting process to platinum crucible inwall weakens.
The crucible material of raw material incipient melting mainly has two kinds of platinum and silica crucible.Platinum crucible is big portion due to resistant to corrosion
The first choice of spectroscopy frit incipient melting.But in use, platinum crucible is in hot environment, and raw material is in fusion process
Platinum crucible is caused to corrode, so as to introduce platinum ion in optical glass.Platinum ion in visible light wave range due to having suction
Receive, so as to cause optical glass to colour, reduce the transmitance of optical glass.The advantage of silica crucible is that glass is in incipient melting mistake
Platinum ion will not be introduced in journey, it is possible to prevente effectively from causing coloring because of the introducing of platinum ion, so as to improve glass transmitance
Quality.But most of optical glass has more serious erosion in fusion process, to the crucible of quartz material, or even certain occurs
The corrosion of one position is excessively serious and leaks.At present also have using quartz ampoule be used as glass incipient melting vessel, contrast silica crucible,
The advantage of quartz ampoule is that erosion of the glass to quartz ampoule surrounding is more uniform, will not cause to leak because a part is weak.
But because of quartz material to the not corrosion resistant characteristic of optical glass, the limitation of fusant at the beginning of determining production of quartz tubes glass.
The content of the invention
It is longer and be not susceptible to because platinum ion draws that the technical problems to be solved by the invention are to provide a kind of service life
Enter and make the process units of the first fusant of glass of glass coloration.
The present invention also provides a kind of method of fusant at the beginning of producing glass using said apparatus.
The technical proposal for solving the technical problem of the invention is：The process units of the first fusant of glass, including raw material stream
Road, quartzy partition wall, coolant guiding channel and heater, the quartzy partition wall are arranged on raw material runner surrounding or top；It is described
Heater is arranged on surrounding or the top of quartzy partition wall；Described raw material runner one end is provided with material pouring inlet, and the other end is set
Feedstream outlet is equipped with, the raw material runner is hollow structure, inside sets coolant guiding channel.
Further, the shape of the raw material runner is helical structure, and the quartzy partition wall is arranged on raw material runner surrounding,
The heater is arranged on the surrounding of quartzy partition wall.
Further, the shape of the raw material runner is square plate structure, and the quartzy partition wall is arranged on raw material runner top,
The heater is arranged on the top of quartzy partition wall, and bottom surface and the horizontal plane angle of the raw material runner are 1-20 °.
Further, the raw material runner is made of the material of corrosion-and high-temp-resistant.
Further, the shape of the quartzy partition wall is cylinder or cuboid.
Further, it is internally provided with device for detecting temperature in the quartzy partition wall.
Further, the heater uses Si-Mo rod or Elema.
Further, the cooling medium being passed through in the coolant guiding channel uses cooling water or cooling gas.
The production method of the first fusant of glass, comprises the following steps：
1) protective layer is formed：
Raw material runner is first heated to predetermined temperature with heater, then frit is put into original from material pouring inlet
In stream road, when whole raw material runner is paved with glass metal, cooling medium is passed through into coolant guiding channel, is paved with raw material runner
Glass metal due to cooling effect raw material water passage surface formed one layer solidification glassy layer；
2) raw material supplies：
Frit is put into raw material runner from material pouring inlet again, the glassy layer of formation is by frit and raw material
The inwall of runner separates；
3) heating fusing：
By controlling heater the temperature of raw material runner is reached technological requirement, the frit added in raw material runner
Gradually melted by the radiation effects of heater, the glass metal of fusing is gradually toward dirty；
4) quenching process：
The glass incipient melting logistics melted goes out discharging opening and entered in Cooling Quenching equipment, completes quenching technical, so as to be made
The first fusant of the glass of the present invention.
Further, step 1) is described is passed through cooling medium into coolant guiding channel, is cold using being passed through from the bottom up
But medium.
The beneficial effects of the invention are as follows：The present invention is melted to frit using radiant heating, and is existed using the type of cooling
Raw material water passage surface forms the mode of glassy layer, avoids directly contacting raw material runner inner wall in melting process of raw material, so as to reduce
Or the introducing of coloring ion is avoided, improve optical glass transmitance.
Brief description of the drawings
Fig. 1 is the sectional view of the front view of apparatus of the present invention；
Fig. 2 is Fig. 1 sectional perspective schematic diagram；
Fig. 3 is Fig. 1 top view；
Fig. 4 is the stereogram of the raw material runner in Fig. 1；
Fig. 5 is the front view of apparatus of the present invention another kind structure；
Fig. 6 is Fig. 5 A-A sectional views；
Fig. 7 is Fig. 5 stereogram.
Embodiment
The process units of the first fusant of the glass of the present invention includes raw material runner 2, quartzy partition wall 3, coolant guiding channel 1 and added
Thermal 4.Quartzy partition wall 3 is arranged on the surrounding of raw material runner 2 or top；Heater 4 be arranged on quartzy partition wall 3 surrounding or on
Portion；The one end of raw material runner 2 is provided with material pouring inlet 5, and the other end is provided with feedstream outlet 6, and raw material runner 2 is hollow knot
Structure, inside set coolant guiding channel 1.
The shape of above-mentioned raw materials runner 2 can be helical structure, and quartzy partition wall 3 is arranged on the surrounding of raw material runner 2, heating dress
4 surroundings for being arranged on quartzy partition wall 3 are put, as Figure 1-4；The shape of above-mentioned raw materials runner 2 can also be square plate structure, quartz
Partition wall 3 is arranged on the top of raw material runner 2, and heater 4 is arranged on the top of quartzy partition wall 3, as illustrated in figs. 5-7；Raw material runner 2
Or enable the glass shape that just fusant flows from top to bottom using other.Raw material runner 2 uses the material system of corrosion-and high-temp-resistant
Into can select platinum or its alloy, stainless steel or high-purity stainless steel can also be selected.
Quartzy partition wall 3 can be that overall structure or quartz brick are piled up and formed, and its shape can be cylinder, length
Cube shape etc., its big I determine according to output.The main function of quartzy partition wall 3 is to avoid foreign matter and heater 4
Fallen at high temperature due to aging in frit.Quartzy partition wall 3 is not direct to be contacted with frit, is not easily susceptible to glass
The corrosion of first fusant.The operating temperature of fusant process units at the beginning of in order to monitor glass in real time, the present invention is in quartzy partition wall 3
Portion is provided with device for detecting temperature, can use thermocouple.
Heater 4 can be high temperature exothermic device, such as Si-Mo rod or Elema, the preferred Elema of the present invention.
The cooling medium being passed through in coolant guiding channel 1 can use cooling water or cooling gas, in the ring of external high temperature
Under border, to make cooling effect more preferably, present invention preferably employs the direction in opposite direction with melt flow to be passed through cooling medium, i.e.,
Cooling medium is passed through from the bottom up.
The preparation method of the first fusant of frit of the invention is comprised at least and forms protective layer, raw material is supplied, heating is melted,
Several steps such as quenching process, are concretely comprised the following steps：
1) protective layer is formed：
Raw material runner 2 is first heated to predetermined temperature with heater 4, then by frit powder or broken glass slag from raw material
The material pouring inlet 5 of the top of runner 2 is put into raw material runner 2, when frit contacts raw material 2 surface of runner, raw material by
Gradually melt and flowed gradually downward along raw material runner 2 after forming glass metal, when whole raw material runner 2 is paved with glass metal, Xiang Leng
But cooling medium is passed through in medium channel 1, is paved with the glass metal of raw material runner 2 because cooling effect is in the surface shape of raw material runner 2
Into the glassy layer of one layer of solidification, the glassy layer thickness of formation, can basis according to cooling medium size and space temperature comprehensive function
Actual conditions adjust.
2) raw material supplies：
After the glassy layer of solidification being formed after the surface of raw material runner 2, then the raw material throwing by frit above raw material runner 2
Entrance 5 is put into raw material runner 2, and the glassy layer of formation separates the inwall of frit and raw material runner 2, i.e.,：At this time
The inwall of frit and raw material runner 2 be not directly contacted with.
3) heating fusing：
By controlling heater 4 temperature of raw material runner 2 is reached technological requirement, the glass added in raw material runner 2
Raw material is gradually melted by the radiation effects of heater 4, and the glass metal of fusing is gradually toward dirty.
4) quenching process：
Cooling Quenching equipment is set in the lower section of discharging opening, the glass incipient melting logistics melted goes out discharging opening and quenched into cooling
In fiery equipment, quenching technical is completed, so as to which the glass of the present invention just fusant be made.
Present invention glassy layer protective layer together with raw material runner 2 forms between frit, reduces frit
Erosion of the fusant to raw material runner 2 at the beginning of the glass formed with fusing, fusant process units at the beginning of so as to improve glass use the longevity
Life, meanwhile, raw material runner 2 be not easy to be formed ionic impurity into glass just fusant, reduce glass just fusant because impurity from
The introducing of son and the risk that colours.
Embodiment 1：
Raw material runner 2 uses helical structure, and quartzy partition wall 3 is cylinder, the surrounding of raw material runner 2 is arranged on, such as Fig. 1-4 institutes
Show, raw material runner 2 uses platinum material, and its radius of spin is 200-700mm, and the thickness of quartzy partition wall 3 is 5-50mm, and internal diameter is
220-720mm, heater 4 use Elema.Frit selects the frit strong to quartzy corrosivity.
Using elema heater, space temperature is increased to 1300 DEG C or so, then with certain speed above raw material runner 2
Powdered frit is put into, after there is glass metal on the surface of raw material runner 2, from 1 cooling water introduced below of coolant guiding channel, is adjusted
Whether whole cooling water flow size and space temperature, observation raw material runner 2 have the glassy layer of solidification, fix the space temperature, cold
But water-carrying capacity, continuous dosing, and maintain certain charging rate, continuous melting is to reach quantity-produced purpose.
The fusing glass metal flowed out from raw material runner 2 is flowed into filtering quenching-in water, obtains the tiny of the first fusant of raw material
Particle, 4kg just fusant input platinum crucibles are taken, implement the main molten of four hours at about 1250 DEG C, obtained glass is being moved back
Fiery furnace annealing, test its refractive index.
Embodiment 2：
Using frit same as Example 1, raw material runner 2 uses square plate structure, and quartzy partition wall 3 is arranged on raw material
The top of runner 2, as illustrated in figs. 5-7, raw material runner 2 use platinum material, and raw material runner 2 is hollow structure, is internally provided with cold
But medium channel 1, three faces of square plate are provided with baffle plate, and one end is provided with charge door.The width of raw material runner 2 is 200-800mm, length
For 600-2000mm, bottom surface and the horizontal plane angle of raw material runner 2 are 1-20 °.The top of raw material runner 2 is charge door, in order to
Feed slot milling, and the quartzy partition wall 3 positioned at charge door position is relatively located at the 3 high 100-400mm of quartzy partition wall of discharging opening position,
As shown in fig. 6-7, the quartzy partition wall 3 positioned at discharging opening position can be placed directly in above raw material runner 2.When frit is from adding
After material mouth adds, glass metal is formed by the radiant heating melting sources of heater 4, when there is glass on the surface of raw material runner 2
After glass liquid, cooling water is passed through from coolant guiding channel 1, adjusts cooling water flow size and space temperature, observation raw material runner 2 is
The no glassy layer for having solidification, the space temperature, cooling water flow are fixed, given pace continuous dosing is kept, due to raw material runner 2
There is certain horizontal sextant angle, the glass metal of fusing flows gradually downward, and continuous melting reaches quantity-produced purpose.
Embodiment 3：
Using the method and apparatus disclosed in publication number CN103553297A, prepared just using above-mentioned identical frit
Fusant, as a result silica crucible erosion perforation leakage.
Embodiment 4：
Preparation equipment and the current platinum crucible production equipment of method selection and its process matched therewith, and use above-mentioned identical glass
Glass raw material prepares just fusant.
Fusant at the beginning of raw material prepared by above-mentioned 4 embodiments is put into main molten refining process glass billot is made, take glass
Glass tests its colourity and interior transmitance (d=10mm), data comparison such as table 1 below：
Table 1：
As can be seen from Table 1, it is right due to being greatly reduced or avoiding the corrosion during raw material incipient melting to crucible internal walls
The coloring for suppressing optical glass plays a good role, and can increase substantially the transmitance quality level of glass.
3 continuous dosings are carried out using above-mentioned 4 embodiments, verify its service life, correction data such as table 2 below：
Table 2
| Service life 1 | Service life 2 | Service life 3 | |
| Embodiment 1 | >30 days | >30 days | >30 days |
| Embodiment 2 | >30 days | >30 days | >30 days |
| Embodiment 3 | <1 day | <1 day | <1 day |
| Embodiment 4 | >30 days | >30 days | >30 days |
As can be seen from Table 2, silica crucible is contrasted, the cycle on probation of embodiment 1,2 is all longer, and it is raw can to carry out batch
Production.
In summary, fusant at the beginning of the glass produced using the devices and methods therefor of the present invention carries out main melting process, i.e.,
The higher optical glass of transmitance is can obtain, batch production can also be realized.
Claims (10)
1. the process units of the first fusant of glass, it is characterised in that lead to including raw material runner (2), quartzy partition wall (3), cooling medium
Road (1) and heater (4), the quartzy partition wall (3) are arranged on raw material runner (2) surrounding or top；The heater (4)
It is arranged on surrounding or the top of quartzy partition wall (3)；Described raw material runner (2) one end is provided with material pouring inlet (5), and the other end is set
Feedstream outlet (6) is equipped with, the raw material runner (2) is hollow structure, inside sets coolant guiding channel (1).
2. the process units of the first fusant of glass as claimed in claim 1, it is characterised in that the shape of the raw material runner (2)
It is helical structure, the quartzy partition wall (3) is arranged on raw material runner (2) surrounding, and the heater (4) is arranged on quartzy partition wall
(3) surrounding.
3. the process units of the first fusant of glass as claimed in claim 1, it is characterised in that the shape of the raw material runner (2)
It is square plate structure, the quartzy partition wall (3) is arranged on raw material runner (2) top, and the heater (4) is arranged on quartzy partition wall
(3) top, bottom surface and the horizontal plane angle of the raw material runner (2) are 1-20 °.
4. the process units of the first fusant of glass as claimed in claim 1, it is characterised in that the raw material runner (2) is using resistance to
The material of high temperature corrosion-resisting is made.
5. the process units of the first fusant of glass as claimed in claim 1, it is characterised in that the shape of the quartzy partition wall (3)
It is cylinder or cuboid.
6. the process units of the first fusant of glass as claimed in claim 1, it is characterised in that internal in the quartzy partition wall (3)
It is provided with device for detecting temperature.
7. the process units of the first fusant of glass as claimed in claim 1, it is characterised in that the heater (4) uses silicon
Molybdenum bar or Elema.
8. the process units of the first fusant of glass as claimed in claim 1, it is characterised in that in the coolant guiding channel (1)
The cooling medium being passed through uses cooling water or cooling gas.
9. the production method of the first fusant of glass, it is characterised in that comprise the following steps：
1) protective layer is formed：
Raw material runner (2) is first heated to predetermined temperature with heater (4), then frit is thrown from material pouring inlet (5)
Enter into raw material runner (2), when whole raw material runner (2) is paved with glass metal, cooling is passed through into coolant guiding channel (1) and is situated between
Matter, the glass metal of raw material runner (2) is paved with because cooling effect forms one layer of glassy layer solidified on raw material runner (2) surface；
2) raw material supplies：
Frit is put into raw material runner (2) from material pouring inlet (5) again, the glassy layer of formation by frit with it is former
The inwall in stream road (2) separates；
3) heating fusing：
By controlling heater (4) temperature of raw material runner (2) is reached technological requirement, the glass added in raw material runner (2)
Glass raw material is gradually melted by the radiation effects of heater (4), and the glass metal of fusing is gradually toward dirty；
4) quenching process：
The glass incipient melting logistics melted goes out discharging opening and entered in Cooling Quenching equipment, completes quenching technical, so as to which glass be made
First fusant.
10. the production method of the first fusant of glass as claimed in claim 9, it is characterised in that step 1) is described to cooling medium
Passage is passed through cooling medium in (1), is to use to be passed through cooling medium from the bottom up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510918429.3A CN105502888B (en) | 2015-12-11 | 2015-12-11 | The process units and its production method of the first fusant of glass |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510918429.3A CN105502888B (en) | 2015-12-11 | 2015-12-11 | The process units and its production method of the first fusant of glass |
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| Publication Number | Publication Date |
|---|---|
| CN105502888A CN105502888A (en) | 2016-04-20 |
| CN105502888B true CN105502888B (en) | 2018-01-02 |
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| CN201510918429.3A Active CN105502888B (en) | 2015-12-11 | 2015-12-11 | The process units and its production method of the first fusant of glass |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103553297A (en) * | 2013-11-18 | 2014-02-05 | 成都光明光电股份有限公司 | Manufacturing device and manufacturing method of glass raw material coarse melt |
| CN104860509A (en) * | 2015-06-15 | 2015-08-26 | 成都光明光电有限责任公司 | Production and manufacture method for high-homogeneity optical glass |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60150829A (en) * | 1984-01-13 | 1985-08-08 | Kobe Steel Ltd | Fusion solidification treatment using microwave |
| US9643869B2 (en) * | 2012-07-03 | 2017-05-09 | Johns Manville | System for producing molten glasses from glass batches using turbulent submerged combustion melting |
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2015
- 2015-12-11 CN CN201510918429.3A patent/CN105502888B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103553297A (en) * | 2013-11-18 | 2014-02-05 | 成都光明光电股份有限公司 | Manufacturing device and manufacturing method of glass raw material coarse melt |
| CN104860509A (en) * | 2015-06-15 | 2015-08-26 | 成都光明光电有限责任公司 | Production and manufacture method for high-homogeneity optical glass |
Non-Patent Citations (1)
| Title |
|---|
| 玻璃熔窑的全氧燃烧技术;叶鼎铨;《玻璃纤维》;20020630;正文第8-14页 * |
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