CN103553297A - Manufacturing device and manufacturing method of glass raw material coarse melt - Google Patents
Manufacturing device and manufacturing method of glass raw material coarse melt Download PDFInfo
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- CN103553297A CN103553297A CN201310581093.7A CN201310581093A CN103553297A CN 103553297 A CN103553297 A CN 103553297A CN 201310581093 A CN201310581093 A CN 201310581093A CN 103553297 A CN103553297 A CN 103553297A
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Abstract
The invention provides a manufacturing device of an optical glass raw material coarse melt with high vitrification degree and good uniformity. The manufacturing device of the glass raw material coarse melt comprises a raw material treatment component with a heating device, wherein one end of the raw material treatment component is provided with a feed opening, and the other end of the raw material treatment component is provided with a discharge opening; a receiving groove and a receiving trolley are arranged below the discharge opening of the raw material treatment component in sequence; the raw material treatment component is provided with a homogenizing device; a blockage component is arranged at the discharge opening of the raw material treatment component. The glass raw material can be heated and melted by the raw material treatment component for a longer time, and the vitrification degree of the glass raw material coarse melt can be further improved; the chemical ingredients of the raw material coarse melt can be more uniform through homogenization in a glass raw material melting process; drier glass raw material coarse melt can be obtained through cooling in the glass coarse melt discharge process.
Description
Technical field
The present invention relates to a kind of manufacturing installation and method of compound, particularly relate to manufacturing installation and manufacture method thereof that a kind of Optical Glass Materials slightly melts thing.
Background technology
When frit is melted to manufacture glass, melts can cause strong erosion to melting unit, and this erosion is particularly remarkable when frit carries out vitrifying, but just not obvious after vitrifying.Therefore when manufacturing glass, often can use following manufacture method: first produce frit and slightly melt and carried out vitrified thick fusant, and then use this thick fusant to carry out main fusing.Adopt this manufacture method to compare with the manufacture method that direct use frit carries out main fusing, the erosion of raw material to melting unit in the time of can suppressing well main fusing.
Japanese kokai publication sho 62-123027 communique, Japanese kokai publication hei 1-119522 communique, application number is that 201210237075.2 Chinese patent all discloses aforesaid method, in the manufacture of thick fusant, use has the raw material smelting furnace that frit heating is carried out to the silica tube of thick fusing, as shown in Figure 1, this raw material smelting furnace comprises central shaft with respect to the horizontal direction silica tube 4 of θ tilted configuration at an angle, the resistance heater 3 that this silica tube 4 is heated, the hamper 11 moving for hindering raw material and solution, be disposed at the tank 12 of silica tube 4 spout belows, wherein, hamper 11 is for to be arranged at silica tube 4 inner chambers along the prominence being axially spacedly distributed, as shown in Figures 2 and 3.When manufacturing thick fusant, first, from a side's of silica tube 4 peristome (input port), drop into frit, then make frit mobile to the peristome (spout) being positioned at than more close vertical direction below, input port, simultaneously by frit heat fused, finally the frit that becomes solution shape is put in the tank 12 that is disposed at spout below and quenched, obtain thus the thick fusant of raw material, more just can be for main melting process by the operation such as being dried.
Yet, the silica tube 4 that the heat fused of above-mentioned frit is used, its two is all cylindrical duct or the Concavo-convex tube of opening, its spout does not have tamper, therefore raw material drops into from input port and just directly from spout, flows to tank being fused into solution, and whole device can only play fusing effect to raw material.For the high raw material of fusing point, the patents such as Japanese kokai publication sho 62-123027 communique, Japanese kokai publication hei 1-119522 communique, raw material exists does not have complete vitrified possibility, although the Chinese patent that application number is 201210237075.2 has been mentioned hamper 11 has been set in the silica tube of raw material fluxed parts, extend the stop heat-up time of raw material in raw material processing element, but or exist can not be complete vitrified may.If this occurs, just must meet the complete vitrifying of raw material by improving temperature of fusion, but there is again painted possibility in the element that this can be painted as high temperature melting such as La, W, Bi for some.In addition, because this raw material processing element does not have homogenization function, and the raw material dropping in actual use procedure is that mixture, various raw material temperature of fusion are different, part raw material can first melt, a part melts after the meeting, so first the material solution of fusing first flows down from spout, after the material solution of rear fusing, flow down, cause the material solution uneven components flowing out from spout, particularly just started and closed on while finishing obviously, having caused like this composition of the thick fusant of raw material that finally obtains also inhomogeneous.Have, the thick melt moisture content of raw material of using the method for vitrification of water quenching to obtain is large, particle is thin, must through water material is separated, dry, could use again, so just extend follow-up use operation, is unfavorable for raising the efficiency and reducing manufacturing cost again.
Summary of the invention
Technical problem to be solved by this invention is to provide the manufacturing installation of the thick fusant of Optical Glass Materials that a kind of vitrifying degree high uniformity is good.
The present invention also will provide a kind of manufacture method that adopts above-mentioned manufacturing installation.
The technical scheme that technical solution problem of the present invention adopts is: the manufacturing installation of the thick fusant of frit, comprise the raw material processing element with heating unit, one end of described raw material processing element is provided with dog-house, the other end is provided with discharge port, under the discharge port of described raw material processing element, be also disposed with connect material groove and the car that connects material, in described raw material processing element, be provided with homogenization device, at the discharge port place of described raw material processing element, be provided with plug members.
Further, at described discharge port place, be provided with the thermopair for monitoring temperature.
Further, on described connect material groove and the car that connects material, be provided with the refrigerating unit that can spray heat-eliminating medium.
Further, described heating unit is arranged on around raw material processing element.
Further, described plug members is bald plug, flat-top plug, groove plug, tap or valve.
Further, groove and 20-75 ° of inclination angle of horizontal plane maintenance connect material described in.
Further, the car that connects material described in can move left and right back and forth.
Further, described homogenization device is gas homogenization device or mechanical stirring device.
The manufacture method of the thick fusant of frit, the method comprises the following steps: 1) first with plug members, stop up the discharge port of raw material processing element, then frit is put in raw material processing element; 2) frit in raw material processing element is carried out to heat fused; 3) by homogenization device to glass solution homogenizing; 4) take off plug members, open the refrigerating unit that connects material groove and connect material on car, ejection heat-eliminating medium; 5) frit solution flows out in the groove that connects material and with heat-eliminating medium and mixes, and final uniform spreading is put into and connects material in car, and the block frit that obtains being dried slightly melts thing.
The invention has the beneficial effects as follows: raw material processing element of the present invention can, for more time to frit heat fused, can further improve the vitrifying degree of the thick fusant of frit; By the homogenizing in frit melting process, can be so that the thick fusant chemical composition of the raw material arriving be more even; Cooling by the thick melt discharge process of glass, the thick fusant of frit that can obtain being more dried.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art;
Fig. 2 is the sectional view of the silica tube in Fig. 1;
Fig. 3 is that Fig. 1 observes the structural representation of silica tube from the spout direction of silica tube;
Fig. 4 is the structural representation of apparatus of the present invention;
Fig. 5 is the structural representation of the groove that connects material of apparatus of the present invention;
Fig. 6 is the structural representation of the car that connects material of apparatus of the present invention;
Fig. 7 is the A-A sectional view of Fig. 6;
Fig. 8 is the work schematic diagram of apparatus of the present invention;
Fig. 9 is the work schematic diagram of the device of the embodiment of the present invention 3.
Embodiment
As shown in Figure 4, the manufacturing installation of the thick fusant of frit of the present invention comprises raw material processing element 1 with heating unit 2, groove 6 and the car 8 that connects material connect material.One end of raw material processing element 1 is provided with dog-house, and the other end is provided with discharge port, at discharge port place, is provided with the thermopair for monitoring temperature.The groove 6 that connects material is successively set under the discharge port of raw material processing element 1 with the car 8 that connects material, connect material on groove 6 and the car 8 that connects material and be provided with refrigerating unit 7, as shown in Fig. 5, Fig. 6 and Fig. 7, refrigerating unit 7 can spray heat-eliminating medium, and this heat-eliminating medium can be water coolant, cooling gas etc.The refrigerating unit 7 connecting material on car 8 can be the form of heat-eliminating medium pipeline that arranges in car 8 bottoms that connect material, and as shown in Figure 6 and Figure 7, heat-eliminating medium enters by import 9 car 8 bottoms that connect material, then leaves by exporting 10 the car 8 that connects material.Above-mentioned heating unit 2 can be arranged on around raw material processing element 1.Discharge port place in raw material processing element 1 is also provided with plug members 13.
The present invention is also provided with homogenization device 5 in above-mentioned raw materials processing element 1.This homogenization device 5 can be gas homogenization device, can be also mechanical stirring device.Preferred gas homogenization device of the present invention, passes into clean all oxidizing gases of certain pressure certain hour, and gas blasts glass metal from the lower end of homogenization device 5 under pressure, with the form of bubble, drives glass precursor solution rolling, reaches homogenizing.
Above-mentioned raw materials processing element 1 can be cartridge, spherical member, bowl-type parts or box shape assembly etc., circular crucible of the present invention.The position of dog-house can be directly over raw material processing element 1, also can be raw material processing element 1 side of close top in the vertical direction, the bore of dog-house is determined according to the situation of feeding intake, the preferred dog-house of the present invention directly over raw material processing element 1, opening bore φ 400-800mm.The position of discharge port can raw material processing element 1 vertical direction near below side, also can be under raw material processing element 1, the preferred discharge port of the present invention is under raw material processing element 1, opening bore is φ 5-25mm.The shape of plug members 13 and material can be determined according to the structure of raw material processing element 1, can be bald plug, flat-top plug or groove plug, can also be the mechanical means such as tap or valve, material is so long as resistance to 600 ℃ of high temperature and have certain physical strength, the preferred cast iron groove of the present invention plug, like this can be equably and crucible bottom combination, under the effect of plug members 13, the raw material dropping into from raw material processing element 1 dog-house with and solution can raw material processing element 1, stop for more time, heat fused is more abundant.Heating unit 2 can be electricity, gasoline, coal, Sweet natural gas, carbon-point, Si-Mo rod etc., the carbon-point heating that alternative costs of the present invention are cheap.Homogenization device 5 can be high temperature resistant and corrosion resistant silica tube, can be also resistant to elevated temperatures precious metal or precious metal alloys pipe, and its shape can be square or round tube, the platinum pipe of the preferred φ 5-15mm of the present invention.Connect material the material of groove 6 so long as have resistance to 700 ℃ of high temperature and certain physical strength, and shape can be square groove, dovetail groove or circular groove, the preferred stainless steel dovetail groove of the present invention; The groove 6 of connecting material keeps 20-75 ° of inclination angle with horizontal plane, and the present invention is itself and horizontal plane inclination angle at 45 ° preferably.The car 8 that connects material can move around, and can be square, circular, bowl-type etc., and the present invention is the stainless steel rectangle of the resistance to 700 ℃ of high temperature car that connects material preferably.
Frit in the present invention refers to not vitrified raw material, i.e. batch materials.The manufacture method of the thick fusant of frit of the present invention is at least passed through raw material supplying, heat fused, homogenizing, the several steps of vitrifying.Wherein, raw material supplying is that frit is put in raw material processing element 1 from the dog-house of raw material processing element 1; Heat fused is that the frit in raw material processing element 1 is carried out to heat fused, and when frit moves to discharge port from the dog-house of raw material processing element 1, frit should temporarily rest in raw material processing element 1, can fully be melted; Homogenizing be after the fusing of all raw materials again by being arranged on the 5 pairs of glass solution homogenizing of homogenization device in raw material processing element 1, obtain the thick fusant of the uniform raw material of chemical composition.Vitrifying is that the frit solution to flowing down from discharge port carries out cooling and makes its vitrifying, and wherein vitrifying adopts the mode vitrifying that heat-eliminating medium and glass precursor solution mix.
During work, as shown in Figure 8, first with plug members 13, stop up the discharge port of raw material processing element 1, again frit is put in raw material processing element 1 from the dog-house of raw material processing element 1, heat fused, before frit solution 14 flows out, cooling medium inlet 9 and the outlet 10 of opening the refrigerating unit 7 connecting material on groove 6 and connecting material on car 8.Heat-eliminating medium sprays from refrigerating unit 7 and import 9, taking off the rear frit solution 14 of plug members 13 flows out from raw material processing element 1, and with heat-eliminating medium hybrid glass in the groove 6 that connects material of refrigerating unit 7 ejection, frit solution 14 flows to and connects material in car 8 under action of gravity simultaneously, connect material heat-eliminating medium that car 8 bottoms flow through for the cooling car 8 that connects material, prevent from being corroded by the high temperature of the frit solution 14 flowing down from the groove 6 that connects material, the also cooling frit solution 14 connecting material in car 8 fast simultaneously, by the movement car 8 that connects material, frit solution 14 uniform spreadings are put into connect material in car 8, and lay is to the vitrified frit solution 14 connecting material in car 8, under the effect of self temperature, can evaporate remaining heat-eliminating medium, finally obtain frit of the present invention and slightly melt thing.
The present invention compared with prior art, prior art be direct quenching obtain like powder slightly melt thing, it is very large that this slightly melts thing water content, and the present invention adopts a certain amount of heat-eliminating medium to mix with the frit solution 14 flowing out equably, and be laid in and connect material in car 8, form dry bulk and slightly melt thing.
Embodiment 1:
It is highly that 500mm, thickness are the quartz crucible that 20mm, volume are 65L that raw material processing element 1 adopts, and vertically places, and dog-house opening bore is φ 450mm, and discharge port opening bore is φ 20mm.In raw material processing element 1, being provided with aperture is the platinum pipe that φ 15mm, length are 1.5m.Discharge port place is provided with groove plug, is provided with the thermopair for monitoring temperature simultaneously near discharge port.Heating unit 2 adopts many carbon-points and is around uniformly distributed in raw material processing element 1, and the heating zone length of carbon-point and the outside dimension of raw material processing element 1 are consistent.Under discharge port, be provided with connect material groove 6 and the car 8 that connects material with refrigerating unit, refrigerating unit adopts water-chilling plant.
Frit adopts phosphate optical glass production of raw material for use, and the weight percent of the oxide compound after this raw material gasifies water, carbonic acid gas etc. composition because of heating is removed consists of: P
2o
5: 17%, Nb
2o
5: 22.3%, Bi
2o
5: 43.5%, WO
5: 8.6%, BaO:0.7%, B
2o
3: 0.6%, TiO
2: 2.6%, Li
2o:0.8%, Na
2o:3%, K
2o:0.9%.In addition, when allotment raw material, for the P in component
2o
5, can use orthophosphoric acid salt, metaphosphoric acid or Vanadium Pentoxide in FLAKES etc., for other component, can use carbonate, nitrate, oxide compound etc.
Utilize carbon-point well heater, raw material processing element 1 is heated to 1000 ℃ of left and right, and keep 1000 ℃.From dog-house, with certain speed, drop into pulverous above-mentioned frit again, until 50kg raw material, all drop into and be fused into after solution shape, put down homogenization device 5, under 2mp pressure, pass into pure O
210min, opens the water-chilling plant of the groove 6 that connects material, and takes off groove plug, and material solution flows to and connects material groove 6 from discharge port, and final in the car 8 that connects material vitrifying form the block thick melt of dry raw material.
When material solution flows out weight while being 10%, 50%, 90% from discharge port, respectively at discharge port with connect material between groove 6 with sampling bale-out three sample A11, A12, A13, after annealing, measure its optical constant.
After raw material all flows out two hours, docking raw material in truck 8 slightly melts thing and carries out water content test and be designated as A1
water.
The thick melt 4kg of raw material obtained above is dropped into platinum crucible, at approximately 1100 ℃, implements the main fusing of four hours, by the glass obtaining in annealing furnace annealing, thereby obtained the opticglass that refractive index n d is 2.00265, Abbe number vd is 19.27.
Embodiment 2:
Raw material processing element 1 adopts length 100cm, the external diameter 10cm of both ends open, the circular quartz glass tube of internal diameter 8cm, and centered by its obliquity, line is horizontal by 3 ° of angles.In circular quartz glass tube inside, be provided with the hamper of platinum material, hamper is that the parts of thickness 5cm, external diameter 8cm, internal diameter 6cm are along axially uniformly-spaced carrying out eight equal parts distribution.Heating unit 2 adopts carbon-point well heaters, by the carbon-point well heater with circular quartz glass tube equal length to be parallel to the mode of circular quartz glass tube, many of surrounding's configurations of circular quartz glass tube.Below discharge port, be provided with tank, so that the solution flowing out from discharge port is quenched and obtains the thick melt of frit, as shown in Figure 1-Figure 3.
Frit adopts the raw material identical with embodiment 1.
Utilize carbon-point well heater, raw material processing element 1 is heated to 1000 ℃ of left and right, then with certain speed, drop into pulverous frit from dog-house.In addition, when frit being carried out to heat fused, raw material processing element 1 be take to medullary ray as turning axle rotation at every turn.The frit that becomes solution shape in raw material processing element 2 flows out from discharge port, and in tank, quenches and obtain the thick fusant of raw material.
When material solution is 10%, 50%, 90% from discharge port outflow weight, respectively at sampling bale-out three sample A21, A22, A23 for discharge port, its optical constant of mensuration after annealing.
When material solution flows out completely, with 100 mesh filter screen separation, slightly melt thing and water and after two hours, raw material is slightly melted to thing and carry out water-content test and be designated as A2 water.
The thick melt 4kg of the raw material obtaining is dropped into platinum crucible, at approximately 1100 ℃, implements the main fusing of four hours, by the glass obtaining in annealing furnace annealing, thereby obtained the opticglass that refractive index n d is 2.00270, Abbe number vd is 19.3.
Embodiment 3:
Use is with embodiment 1 identical raw material melt processed equipment and method, uses with the same material solution method for vitrification of embodiment 2, makes glass cullet, as shown in Figure 9, and carries out main fusing and obtains opticglass.According to the sampling of the same method of embodiment 1, test record, be A31, A32, A33, and it is slightly melted to thing carry out water-content test A3
water.
To the opticglass obtaining in above-described embodiment 1, embodiment 2, embodiment 3, utilize spectrophotometer in the scope of 300-700nm, to carry out the mensuration of transmitance, these opticglass have transmitance to start to decline from wavelength 500nm left and right and sees through almost nil optical characteristics in wavelength 400nm left and right, obtain transmitance and be 70% wavelength (λ 70), and the results are shown in Table 1.
Table 1
| |
1 | 2 | 3 |
| λ70（nm） | 450 | 456 | 450 |
As can be seen from Table 1, λ 70 as the chromaticity index of opticglass, embodiment 1 and embodiment 3 obtain the opticglass of better colourity than embodiment 2, find out that thus the vitrifying degree of the thick fusant of frit that embodiment 1 and embodiment 3 make than embodiment 2 is higher.
The thick fusant of Optical Glass Materials obtaining in embodiment 1, embodiment 2 and embodiment 3 is tested to its optical constant under V prism, and its test result is shown in table 2, table 3 and table 4.
Table 2
| |
A11 | A12 | A13 |
| Nd | 2.00258 | 2.00263 | 2.00255 |
| Vd | 19.29 | 19.25 | 19.30 |
Table 3
| |
A21 | A22 | A23 |
| Nd | 1.9538 | 2.00200 | 2.10194 |
| Vd | 24.05 | 19.25 | 20.70 |
Table 4
| |
A31 | A32 | A33 |
| Nd | 2.00258 | 2.00263 | 2.00255 |
| Vd | 19.29 | 19.25 | 19.30 |
From above-mentioned table 2, table 3 and table 4, can find out, embodiment 1, the optical constant consistence of 3 each time periods of embodiment are good compared with embodiment 2.
The thick fusant of raw material that embodiment 1, embodiment 2, embodiment 3 are made carries out water-content test, and its table with test results is shown in Table 5.
Table 5
| Embodiment | A1 Water | A2 Water | A3 Water |
| Water content (wt%) | 1.26% | 30.73% | 30.62% |
As can be seen from Table 5, the water content of the thick fusant of raw material that embodiment 1 obtains is all more much lower than embodiment 2 and embodiment's 3, with carrying out drying treatment, has saved program hardly again.
Claims (9)
1. the manufacturing installation of the thick fusant of frit, the raw material processing element (1) that comprises band heating unit (2), one end of described raw material processing element (1) is provided with dog-house, the other end is provided with discharge port, it is characterized in that: under the discharge port of described raw material processing element (1), be also disposed with the groove that connects material (6) and the car that connects material (8), in described raw material processing element (1), be provided with homogenization device (5), at the discharge port place of described raw material processing element (1), be provided with plug members (13).
2. the manufacturing installation of the thick fusant of frit as claimed in claim 1, is characterized in that: at described discharge port, place is provided with the thermopair for monitoring temperature.
3. the manufacturing installation of the thick fusant of frit as claimed in claim 1, is characterized in that: on the described groove that connects material (6) and the car that connects material (8), be provided with the refrigerating unit (7) that can spray heat-eliminating medium.
4. the manufacturing installation of the thick fusant of frit as claimed in claim 1, is characterized in that: described heating unit (2) is arranged on raw material processing element (1) around.
5. the manufacturing installation of the thick fusant of frit as claimed in claim 1, is characterized in that: described plug members (13) is bald plug, flat-top plug, groove plug, tap or valve.
6. the manufacturing installation of the thick fusant of frit as claimed in claim 1, is characterized in that: described in the groove (6) that connects material keep 20-75 ° of inclination angle with horizontal plane.
7. the manufacturing installation of the thick fusant of frit as claimed in claim 1, is characterized in that: described in the car (8) that connects material can move left and right back and forth.
8. the manufacturing installation of the thick fusant of frit as claimed in claim 1, is characterized in that: described homogenization device (5) is gas homogenization device or mechanical stirring device.
9. the manufacture method of the thick fusant of frit, is characterized in that: the method comprises the following steps: 1) first use plug members (13) to stop up the discharge port of raw material processing element (1), then frit is put in raw material processing element (1); 2) frit in raw material processing element (1) is carried out to heat fused; 3) pass through homogenization device (5) to glass solution homogenizing; 4) take off plug members (13), open the refrigerating unit (7) on the groove that connects material (6) and the car that connects material (8), ejection heat-eliminating medium; 5) frit solution flows out in the groove that connects material (6) and with heat-eliminating medium and mixes, and finally uniform spreading is put in the car that connects material (8), and the block frit that obtains being dried slightly melts thing.
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|---|---|---|---|
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|---|---|---|---|
| CN201310581093.7A CN103553297A (en) | 2013-11-18 | 2013-11-18 | Manufacturing device and manufacturing method of glass raw material coarse melt |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104609701A (en) * | 2015-02-06 | 2015-05-13 | 成都光明光电有限责任公司 | Continuous preparation device and method of glass raw material coarse fusant |
| CN105502888A (en) * | 2015-12-11 | 2016-04-20 | 成都光明光电股份有限公司 | Production device of glass initial melting product and production method thereof |
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|---|---|---|---|---|
| CN102698634A (en) * | 2012-05-25 | 2012-10-03 | 安徽工业大学 | Device and method for homogenizing high-temperature melt |
| CN102910800A (en) * | 2011-08-01 | 2013-02-06 | Hoya株式会社 | Method for manufacturing crude melt of glass raw materials and method for manufacturing optical glass |
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2013
- 2013-11-18 CN CN201310581093.7A patent/CN103553297A/en active Pending
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|---|---|---|---|---|
| CN102910800A (en) * | 2011-08-01 | 2013-02-06 | Hoya株式会社 | Method for manufacturing crude melt of glass raw materials and method for manufacturing optical glass |
| CN102698634A (en) * | 2012-05-25 | 2012-10-03 | 安徽工业大学 | Device and method for homogenizing high-temperature melt |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104609701A (en) * | 2015-02-06 | 2015-05-13 | 成都光明光电有限责任公司 | Continuous preparation device and method of glass raw material coarse fusant |
| CN105502888A (en) * | 2015-12-11 | 2016-04-20 | 成都光明光电股份有限公司 | Production device of glass initial melting product and production method thereof |
| CN105502888B (en) * | 2015-12-11 | 2018-01-02 | 成都光明光电股份有限公司 | The process units and its production method of the first fusant of glass |
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Application publication date: 20140205 |