CN116947289A - Melting furnace for producing medium borosilicate glass pull tube and production method - Google Patents
Melting furnace for producing medium borosilicate glass pull tube and production method Download PDFInfo
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- CN116947289A CN116947289A CN202310958936.4A CN202310958936A CN116947289A CN 116947289 A CN116947289 A CN 116947289A CN 202310958936 A CN202310958936 A CN 202310958936A CN 116947289 A CN116947289 A CN 116947289A
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- material channel
- tube
- borosilicate glass
- glass
- working part
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- 239000005388 borosilicate glass Substances 0.000 title claims abstract description 53
- 238000002844 melting Methods 0.000 title claims abstract description 35
- 230000008018 melting Effects 0.000 title claims abstract description 35
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 101
- 239000000463 material Substances 0.000 claims abstract description 86
- 239000011521 glass Substances 0.000 claims abstract description 79
- 239000012535 impurity Substances 0.000 claims abstract description 40
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims abstract description 22
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 22
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 22
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 9
- 239000010703 silicon Substances 0.000 claims abstract description 9
- 230000007547 defect Effects 0.000 claims description 19
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 18
- 239000011449 brick Substances 0.000 claims description 9
- 229910052697 platinum Inorganic materials 0.000 claims description 9
- 238000005485 electric heating Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000004411 aluminium Substances 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 2
- 239000000377 silicon dioxide Substances 0.000 claims 1
- 239000002699 waste material Substances 0.000 abstract description 5
- 230000002950 deficient Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000006060 molten glass Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B17/00—Forming molten glass by flowing-out, pushing-out, extruding or drawing downwardly or laterally from forming slits or by overflowing over lips
- C03B17/04—Forming tubes or rods by drawing from stationary or rotating tools or from forming nozzles
-
- 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
-
- 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
- C03B5/20—Bridges, shoes, throats, or other devices for withholding dirt, foam, or batch
-
- 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
- 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
- C03B5/26—Outlets, e.g. drains, siphons; Overflows, e.g. for supplying the float tank, tweels
- C03B5/265—Overflows; Lips; Tweels
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B7/00—Distributors for the molten glass; Means for taking-off charges of molten glass; Producing the gob, e.g. controlling the gob shape, weight or delivery tact
- C03B7/01—Means for taking-off charges of molten glass
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B7/00—Distributors for the molten glass; Means for taking-off charges of molten glass; Producing the gob, e.g. controlling the gob shape, weight or delivery tact
- C03B7/02—Forehearths, i.e. feeder channels
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
The invention discloses a melting furnace and a production method for producing medium borosilicate glass pull tubes, wherein the melting furnace for producing medium borosilicate glass pull tubes comprises a melting part, the melting part is communicated with a working part through a liquid flow hole, the bottom of one side wall of the working part is connected with first pull tube equipment through a first material channel, the middle part of the other side wall is connected with second pull tube equipment through a second material channel, the caliber of the first material channel is smaller than that of the second material channel, and the top of one side wall of the working part is provided with an overflow port for overflowing silicon-rich glass liquid entering the surface of glass liquid in the working part. According to the invention, the glass liquid containing aluminum impurities and zirconium impurities at the inner bottom of the working part can be fully utilized through the first tube drawing equipment, waste is avoided, and the first tube drawing equipment does not interfere with the normal operation of the second tube drawing equipment.
Description
Technical Field
The invention belongs to the technical field of glass tube drawing production, and particularly relates to a melting furnace for producing medium borosilicate glass tube drawing and a production method thereof.
Background
When borosilicate glass tube drawing is produced, the batch is firstly melted into glass liquid through flame heating and electric heating of a melting part, the melted glass liquid enters a working part and enters tube drawing equipment from the working part, wherein the tube drawing equipment comprises a muffle furnace, a rotating tube, a forming chamber and a runway, and the glass liquid coming out of the working part enters the rotating tube in the muffle furnace, enters the forming chamber and is drawn by a tractor at the tail end of the runway, so that the middle borosilicate glass tube drawing is formed.
The glass liquid of the borosilicate glass tube is concentrated on the surface due to different densities of components, so that the glass liquid of a silicon-rich phase in the glass liquid can be gathered on the bottom, the glass liquid containing more aluminum and zirconium can sink to the bottom, in a melting furnace of the borosilicate glass tube in traditional production, aluminum impurities and zirconium impurities in the glass liquid can be removed through a bottom discharging mode, the aluminum impurities and the zirconium impurities contained in the glass liquid discharged through the bottom discharging mode are not much, but the glass liquid containing the aluminum impurities and the zirconium impurities is not utilized, so that great waste is caused, in addition, in the traditional production, the melting furnace of the borosilicate glass tube is provided with a two-line tube drawing production line, and the two tube drawing production lines of the two-line tube drawing production line are symmetrically arranged relative to a melting part, so that the two completely symmetrical tube drawing production lines can mutually interfere, when one tube drawing production line fluctuates, the glass liquid flow in the working part can generate great change, and the other tube drawing production line also has defects.
Disclosure of Invention
In view of the defects in the prior art, the invention provides a melting furnace for producing a medium borosilicate glass pulling pipe and a production method thereof, wherein molten glass containing aluminum impurities and zirconium impurities at the bottom in a working part can be fully utilized by first pulling pipe equipment, waste is avoided, and the first pulling pipe equipment does not interfere with the normal operation of second pulling pipe equipment.
The technical scheme adopted for solving the technical problems is as follows:
the utility model provides a melting furnace for producing well borosilicate glass draws tube, includes the melting portion, the melting portion passes through the throat and communicates with the working portion, first drawing tube equipment is connected through first material way to a sidewall bottom of working portion, and second drawing tube equipment is connected through the second material way in another sidewall middle part, the bore of first material way is less than the bore of second material way, a sidewall top of working portion is equipped with the overflow mouth for will get into the glass liquid surface's in the working portion rich silicon looks glass liquid overflows, first drawing tube equipment is used for adopting the glass liquid that contains aluminium impurity and zirconium impurity of bottom in the working portion to carry out the drawing, forms the borosilicate glass draw tube in the first batch that has the defect, second drawing tube equipment is used for adopting the glass liquid of the misce bene in middle part in the working portion to carry out the drawing, forms the borosilicate glass draw tube in the second batch that does not have the defect.
Further, the first material channel is positioned at the bottom of one side wall of the working part close to the liquid flow hole, and the second material channel is positioned at the middle of the other side wall of the working part far away from the liquid flow hole.
Further, the first material channel is a brick material channel, and the second material channel is a platinum material channel.
Further, one end of the liquid flow hole is connected with the bottom side wall of the outlet side of the melting part, and the other end of the liquid flow hole is connected with the bottom side wall of the inlet side of the working part.
Further, the overflow port is positioned at the height of the liquid level line in the working part.
Further, the first tube drawing device comprises a first muffle furnace, a first rotary tube, a first forming chamber and a first runway, and the second tube drawing device comprises a second muffle furnace, a second rotary tube, a second forming chamber and a second runway.
Further, the caliber of the second material channel is 3-6 times of that of the first material channel.
Further, the caliber of the second material channel is 4 times of that of the first material channel.
The production method of the medium borosilicate glass pulling pipe adopts the melting furnace for producing the medium borosilicate glass pulling pipe to produce, and specifically comprises the following steps: the batch is melted into glass liquid through flame heating and electric heating of the melting part, the melted glass liquid enters the working part through the liquid flow hole, silicon-rich glass liquid on the surface of the glass liquid in the working part overflows out through the overflow port, glass liquid containing aluminum impurities and zirconium impurities at the bottom in the working part enters the first tube drawing equipment through the first material channel and is drawn by the first tube drawing equipment to form borosilicate glass tube drawing in a defective first batch, and uniformly mixed glass liquid in the middle part in the working part enters the second tube drawing equipment through the second material channel and is drawn by the second tube drawing equipment to form borosilicate glass tube drawing in a non-defective second batch.
Compared with the prior art, the invention has the beneficial effects that:
the invention relates to a melting furnace for producing a borosilicate glass pull tube, which comprises a melting part, wherein the melting part is communicated with a working part through a liquid flow hole, the bottom of one side wall of the working part is connected with first pull tube equipment through a first material channel, the middle part of the other side wall is connected with second pull tube equipment through a second material channel, the caliber of the first material channel is smaller than that of the second material channel, an overflow port is arranged at the top of one side wall of the working part and is used for overflowing silicon-rich glass liquid entering the surface of glass liquid in the working part, the first pull tube equipment is used for stretching glass liquid containing aluminum impurities and zirconium impurities at the bottom in the working part to form a borosilicate glass pull tube in a first batch with defects, and the second pull tube equipment is used for stretching glass liquid uniformly mixed at the middle part in the working part to form a borosilicate glass pull tube in a second batch without defects; the glass liquid containing aluminum impurities and zirconium impurities at the bottom in the working part enters the first tube drawing equipment through the first material channel and is drawn by the first tube drawing equipment to form a borosilicate glass tube in a first batch with defects for self use by factories, so that the glass liquid containing aluminum impurities and zirconium impurities at the bottom in the working part can be fully utilized through the first tube drawing equipment, waste is avoided, the caliber of the first material channel is smaller than that of the second material channel, the flow rate of the glass liquid entering the second tube drawing equipment through the second material channel in the working part is larger than that of the glass liquid entering the first tube drawing equipment through the first material channel, when fluctuation occurs in the production line of the first tube drawing equipment, the glass liquid flow in the working part does not generate larger change, the stable state can be kept, the flow rate of the glass liquid entering the second tube drawing equipment does not generate larger change, the first tube drawing equipment does not interfere with the normal operation of the second tube drawing equipment, and the second tube drawing equipment can stably produce the second batch without defects.
In the invention, the first material channel is positioned at the bottom of one side wall of the working part close to the liquid flow hole, and the second material channel is positioned at the middle of the other side wall of the working part far from the liquid flow hole; thus, glass liquid containing aluminum impurities and zirconium impurities entering the inner bottom of the working part through the throat can timely enter the first tube drawing equipment through the first material channel, so that glass liquid containing aluminum impurities and zirconium impurities at the inner bottom of the working part can be prevented from entering the second tube drawing equipment through the second material channel, and defects caused to borosilicate glass tubes in the produced second batch are prevented.
In the invention, the first material channel is a brick material channel, and the second material channel is a platinum material channel; the borosilicate glass pull tube in the first batch is only used by factories, so the quality requirement on glass liquid is not very high, the first material channel is not required to select a platinum material channel which does not affect the glass liquid and has high cost, only a brick material channel with low cost is required to be selected, and the brick material channel can have certain influence on the glass liquid, but can carry out secondary sorting on the produced finished product, so the self use of the factories is not influenced, and the second material channel is a platinum material channel, so the glass liquid entering the second pull tube equipment is not influenced, and the quality of the borosilicate glass pull tube in the second batch is not influenced.
Drawings
FIG. 1 is a schematic top view of a furnace for producing medium borosilicate glass pull tubes according to the present invention;
fig. 2 is a right-side view of the structure of fig. 1.
The reference numerals in the drawings illustrate: 1. the device comprises a melting part, a liquid flow hole, a working part, a platinum material channel, a first tube drawing device, a brick material channel, a second tube drawing device, an overflow port and a second tube drawing device.
Detailed Description
The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and are not intended to be limiting.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
As shown in fig. 1 and 2, a melting furnace for producing a borosilicate glass pulling tube comprises a melting part 1, wherein the melting part 1 is communicated with a working part 3 through a liquid flow hole 2, one end of the liquid flow hole 2 is connected with the bottom side wall of the outlet side of the melting part 1, the other end of the liquid flow hole is connected with the bottom side wall of the inlet side of the working part 3, one side wall bottom of the working part 3 is connected with a first pulling tube device 5 through a first material channel, the middle part of the other side wall is connected with a second pulling tube device 7 through a second material channel, the caliber of the first material channel is smaller than that of the second material channel, the top of one side wall of the working part 3 is provided with an overflow port 8 for overflowing silicon-rich glass liquid entering the surface of the glass liquid in the working part 3, wherein the overflow port 8 is positioned at the height position of a liquid level line in the working part 3, the first pulling tube device 5 is used for stretching glass liquid containing aluminum impurities and zirconium impurities at the bottom in the working part 3 to form a borosilicate glass pulling tube in a first batch with defects, and the second pulling tube device 7 is used for stretching glass liquid uniformly mixed in the middle part in the working part 3 to form a second batch with no defects. Wherein the first and second channels are on two opposite side walls of the working part 3 and the flow hole 2 and overflow 8 are on the other two opposite side walls of the working part 3.
Thus, the glass liquid containing aluminum impurities and zirconium impurities at the bottom in the working part 3 enters the first tube drawing device 5 through the first material channel and is drawn by the first tube drawing device 5 to form a borosilicate glass tube drawing in a defective first batch for self use by manufacturers, so that the glass liquid containing aluminum impurities and zirconium impurities at the bottom in the working part 3 can be fully utilized through the first tube drawing device 5, waste is avoided, the caliber of the first material channel is smaller than that of the second material channel, the flow rate of the glass liquid entering the second tube drawing device 7 through the second material channel in the working part 3 is larger than that of the glass liquid entering the first tube drawing device 5 through the first material channel, when the production line of the first tube drawing device 5 fluctuates, the glass liquid flow in the working part 3 cannot be changed greatly, the stable state can be maintained, the flow rate of the glass liquid entering the second tube drawing device 7 cannot be changed greatly, the first tube drawing device 5 cannot interfere with the operation of the second tube drawing device 7, and the defect in the second batch of the second tube drawing device 7 can not exist stably.
In one embodiment, the first material channel is located at a position close to the bottom of one side wall of the working portion 3 of the liquid flow hole 2, and the second material channel is located at a position far from the middle of the other side wall of the working portion 3 of the liquid flow hole 2, see fig. 2. Thus, the glass liquid containing aluminum impurities and zirconium impurities entering the inner bottom of the working part 3 through the throat 2 can timely enter the first tube drawing equipment 5 through the first material channel, so that the glass liquid part containing aluminum impurities and zirconium impurities at the inner bottom of the working part 3 is prevented from entering the second tube drawing equipment 7 through the second material channel, and defects caused to borosilicate glass tubes in the produced second batch are prevented.
In one embodiment, the first lane is a brick lane 6 and the second lane is a platinum lane 4. The borosilicate glass pull tube in the first batch is only used by factories, so the quality requirement on glass liquid is not very high, the first material channel is not required to select a platinum material channel 4 which does not affect the glass liquid and has high cost, only a brick material channel 6 with low cost is required to be selected, and the brick material channel 6 can have certain influence on the glass liquid, but can carry out secondary sorting on the produced finished product, so the self use of the factories is not influenced, and the quality of the borosilicate glass pull tube in the second batch cannot be influenced because the second material channel is the platinum material channel 4.
In one embodiment, the first tube drawing apparatus 5 comprises a first muffle, a first rotating tube, a first forming chamber, and a first runway, and the second tube drawing apparatus 7 comprises a second muffle, a second rotating tube, a second forming chamber, and a second runway. The first tube drawing device 5 and the second tube drawing device 7 are conventional devices for producing glass tubes by the Dana method, and are not described herein.
In one embodiment, the caliber of the second material channel is 3-6 times the caliber of the first material channel. Preferably, the caliber of the second material channel is 4 times of that of the first material channel.
The production method of the medium borosilicate glass pulling pipe adopts the melting furnace for producing the medium borosilicate glass pulling pipe to produce, and specifically comprises the following steps: the batch is melted into glass liquid through flame heating and electric heating of the melting part 1, the melted glass liquid enters the working part 3 through the liquid flow hole 2, silicon-rich glass liquid on the surface of the glass liquid in the working part 3 overflows out through the overflow port 8, glass liquid containing aluminum impurities and zirconium impurities at the bottom in the working part 3 enters the first tube drawing device 5 through the first material channel and is drawn by the first tube drawing device 5 to form borosilicate glass tube drawing in a first batch with defects, and uniformly mixed glass liquid in the middle part in the working part 3 enters the second tube drawing device 7 through the second material channel and is drawn by the second tube drawing device 7 to form borosilicate glass tube drawing in a second batch without defects.
In summary, because the glass liquid of the middle borosilicate glass drawing tube has the characteristic of easy layering, the glass liquid of the bottom layer in the melting part 1 enters the working part 3 by arranging the liquid flow hole 2, and because the densities of all components are different in the glass liquid of the middle borosilicate glass drawing tube, silicon-rich glass liquid in the glass liquid can gather on the surface, and glass liquid containing more aluminum and zirconium can sink to the bottom.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present invention, and these modifications and substitutions should also be considered as being within the scope of the present invention.
Claims (9)
1. A melting furnace for producing borosilicate glass draws tube, its characterized in that: including melting portion (1), melting portion (1) communicates with working portion (3) through throat (2), first drawing pipe equipment (5) are connected through first material way to a sidewall bottom of working portion (3), and second drawing pipe equipment (7) are connected through the second material way at another sidewall middle part, the bore of first material way is less than the bore of second material way, a sidewall top of working portion (3) is equipped with overflow mouth (8) for will get into the overflow of the silica-rich looks glass liquid on glass liquid surface in working portion (3) goes out, first drawing pipe equipment (5) are used for adopting the glass liquid that contains aluminium impurity and zirconium impurity of bottom in working portion (3) to carry out the drawing, form the borosilicate glass drawing pipe in the first batch that has the defect, borosilicate glass drawing pipe in the second drawing pipe equipment (7) are used for adopting the glass liquid of the misce bene in middle part in working portion (3) to carry out the drawing, form the borosilicate glass drawing pipe in the second batch that does not have the defect.
2. A furnace for producing medium borosilicate glass pull tubes according to claim 1, wherein: the first material channel is positioned at the bottom of one side wall of the working part (3) close to the liquid flow hole (2), and the second material channel is positioned at the middle of the other side wall of the working part (3) far away from the liquid flow hole (2).
3. A furnace for producing medium borosilicate glass pull tubes according to claim 1, wherein: the first material channel is a brick material channel (6), and the second material channel is a platinum material channel (4).
4. A furnace for producing medium borosilicate glass pull tubes according to claim 1, wherein: one end of the liquid flow hole (2) is connected with the bottom side wall of the outlet side of the melting part (1), and the other end is connected with the bottom side wall of the inlet side of the working part (3).
5. A furnace for producing medium borosilicate glass pull tubes according to claim 1, wherein: the overflow port (8) is positioned at the height position of the liquid level line in the working part (3).
6. A furnace for producing medium borosilicate glass pull tubes according to claim 1, wherein: the first tube drawing device (5) comprises a first muffle furnace, a first rotary tube, a first forming chamber and a first runway, and the second tube drawing device (7) comprises a second muffle furnace, a second rotary tube, a second forming chamber and a second runway.
7. A furnace for producing medium borosilicate glass pull tubes according to claim 1, wherein: the caliber of the second material channel is 3-6 times of that of the first material channel.
8. A furnace for producing medium borosilicate glass pull tubes according to claim 7, wherein: the caliber of the second material channel is 4 times of that of the first material channel.
9. A method for producing a medium borosilicate glass pulling tube by using a melting furnace for producing a medium borosilicate glass pulling tube according to any one of claims 1 to 8, characterized in that: the batch is melted into glass liquid through flame heating and electric heating of the melting part (1), the melted glass liquid enters the working part (3) through the liquid flow hole (2), silicon-rich glass liquid on the surface of the glass liquid in the working part (3) overflows out through the overflow port (8), glass liquid containing aluminum impurities and zirconium impurities at the bottom in the working part (3) enters the first tube drawing equipment (5) through a first material channel and is drawn by the first tube drawing equipment (5) to form a borosilicate glass tube drawing in a first batch with defects, and uniformly mixed glass liquid in the middle part in the working part (3) enters the second tube drawing equipment (7) through a second material channel and is drawn by the second tube drawing equipment (7) to form a borosilicate glass tube drawing in a second batch without defects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310958936.4A CN116947289B (en) | 2023-08-01 | 2023-08-01 | Melting furnace for producing medium borosilicate glass pull tube and production method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310958936.4A CN116947289B (en) | 2023-08-01 | 2023-08-01 | Melting furnace for producing medium borosilicate glass pull tube and production method |
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| Publication Number | Publication Date |
|---|---|
| CN116947289A true CN116947289A (en) | 2023-10-27 |
| CN116947289B CN116947289B (en) | 2024-10-18 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB268780A (en) * | 1926-04-01 | 1927-08-04 | British Thomson Houston Co Ltd | Improvements in and relating to processes and apparatus for producing silica articles |
| US20200239350A1 (en) * | 2019-01-30 | 2020-07-30 | Schott Ag | Device and process for producing a glass product and glass product |
| CN115043574A (en) * | 2022-06-28 | 2022-09-13 | 凯盛君恒药玻(青岛)有限公司 | Kiln for borosilicate glass |
| CN116023006A (en) * | 2022-12-26 | 2023-04-28 | 中国建材国际工程集团有限公司 | One-kiln two-line float glass forming device and process layout |
-
2023
- 2023-08-01 CN CN202310958936.4A patent/CN116947289B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB268780A (en) * | 1926-04-01 | 1927-08-04 | British Thomson Houston Co Ltd | Improvements in and relating to processes and apparatus for producing silica articles |
| US20200239350A1 (en) * | 2019-01-30 | 2020-07-30 | Schott Ag | Device and process for producing a glass product and glass product |
| CN115043574A (en) * | 2022-06-28 | 2022-09-13 | 凯盛君恒药玻(青岛)有限公司 | Kiln for borosilicate glass |
| CN116023006A (en) * | 2022-12-26 | 2023-04-28 | 中国建材国际工程集团有限公司 | One-kiln two-line float glass forming device and process layout |
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