CN107473567B - Technological method for accelerating fading process of body-dyed glass - Google Patents
Technological method for accelerating fading process of body-dyed glass Download PDFInfo
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- CN107473567B CN107473567B CN201710706583.3A CN201710706583A CN107473567B CN 107473567 B CN107473567 B CN 107473567B CN 201710706583 A CN201710706583 A CN 201710706583A CN 107473567 B CN107473567 B CN 107473567B
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- cooling part
- bubbler
- glass
- bubblers
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B18/00—Shaping glass in contact with the surface of a liquid
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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
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
- C03B5/18—Stirring devices; Homogenisation
- C03B5/193—Stirring devices; Homogenisation using gas, e.g. bubblers
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- 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
Abstract
The invention discloses a process method for accelerating the fading process of body-dyed glass, which is characterized by comprising the following steps of: the float glass melting furnace structure comprises a melting part, a neck, a cooling part and a flow passage which are connected in sequence, wherein two bubbler groups are arranged in the cooling part, one bubbler group is positioned at the position of 1.5-3.5 m of the downstream of the neck, the other bubbler group is positioned at the position of 1.6-3.7 m of the upstream of the flow passage, and the gas flow rate of each bubbler is 0.5-2.8 m 3 And/h, to strengthen and improve the convection system of the glass liquid in the cooling part, to improve the thermal efficiency and homogenization effect of the glass liquid in the cooling part, and to increase the oxidability and gas quantity of the glass liquid. The invention can effectively shorten the production fading time of the body-dyed glass and effectively reduce the production cost.
Description
Technical Field
The invention belongs to the technical field of float glass production equipment, and particularly relates to a process method for accelerating the fading process of body-dyed glass.
Background
The glass with different colors can be obtained by adding trace amounts of coloring agent elements such as iron, cobalt, nickel, chromium, copper, selenium and the like into the components of the float transparent colorless glass. The body-colored glass can absorb ultraviolet light, visible light and radiant heat of the sun, and is widely applied to the fields of building materials, decoration and fitment and the like. As market demand for glass colorization increases, so does the color conversion of mass-tinted glass.
In the existing float glass color-changing technology, when coloring (transparent colorless glass changes into body-colored glass), the coloring process can be completed within 2-3 days by adopting the technical measures of excessive color changing (adding excessive coloring agent), bubbling at the melting part of a melting furnace, moving a neck water drum and the like; in the process of fading (the body-dyed glass is changed into transparent colorless glass), no technical measures are taken for effectively accelerating the fading process, and the fading process takes 10-12 days. The color fading time of the body-dyed glass is longer, the intermediate produced transition glass cannot be sold, and the production cost is wasted for glass production enterprises.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a process method for accelerating the fading process of body-dyed glass.
It is another object of the present invention to provide a float glass furnace structure for accelerating the fade process of body-tinted glass.
The technical scheme of the invention is as follows:
a method for accelerating the colour-fading process of body-colour glass features that its float glass furnace is composed of a smelting unit, a neck, a cooling unit with two bubbler groups and a flow channel, and a cooling unit with two bubbler groups1.5-3.5 m downstream of the neck, another bubbler group 1.6-3.7 m upstream of the flow passage, and wherein the gas flow rate of each bubbler is 0.5-2.8 m 3 And/h, to strengthen and improve the convection system of the glass liquid in the cooling part, to improve the thermal efficiency and homogenization effect of the glass liquid in the cooling part, and to increase the oxidability and gas quantity of the glass liquid;
in each bubbler group, the number of bubblers is 6 to 14, the bubblers are arranged in a single row along the width direction of the cooling part, wherein, half of the bubblers are uniformly arranged at equal intervals on one side of the central line of the width of the cooling part, the other half of the bubblers are uniformly arranged at equal intervals on the other side of the central line of the width of the cooling part, and meanwhile, the half of the bubblers and the other half of the bubblers are symmetrically arranged relative to the central line of the width of the cooling part in a bobbin way, and the distance between two adjacent bubblers in each half is 690-720 mm;
the distance between the outermost bubbler and the side wall of the cooling part is 1.4-2.9 m, and the distance between the nozzle of the bubbler and the bottom wall of the cooling part is 650-700 mm.
The other technical scheme of the invention is as follows:
a float glass melting furnace structure for accelerating the fading process of body-dyed glass is composed of a melting part, a neck, a cooling part and a flow channel which are connected in sequence, wherein two bubbler groups are arranged in the cooling part, one bubbler group is positioned at 1.5-3.5 m of the downstream of the neck, the other bubbler group is positioned at 1.6-3.7 m of the upstream of the flow channel, and the gas flow rate of each bubbler is 0.5-2.8 m 3 And/h, to strengthen and improve the convection system of the glass liquid in the cooling part, to improve the thermal efficiency and homogenization effect of the glass liquid in the cooling part, and to increase the oxidability and gas quantity of the glass liquid;
in each bubbler group, the number of bubblers is 6 to 14, the bubblers are arranged in a single row along the width direction of the cooling part, wherein, half of the bubblers are uniformly arranged at equal intervals on one side of the central line of the width of the cooling part, the other half of the bubblers are uniformly arranged at equal intervals on the other side of the central line of the width of the cooling part, and meanwhile, the half of the bubblers and the other half of the bubblers are symmetrically arranged relative to the central line of the width of the cooling part in a bobbin way, and the distance between two adjacent bubblers in each half is 690-720 mm;
the distance between the outermost bubbler and the side wall of the cooling part is 1.4-2.9 m, and the distance between the nozzle of the bubbler and the bottom wall of the cooling part is 650-700 mm.
In a preferred embodiment of the present invention, the one bubbler group is located at 1.9-2.8 m downstream of the neck.
In a preferred embodiment of the invention, the further bubbler group is located 2.2-3.1 m upstream of the flow passage.
In a preferred embodiment of the present invention, the number of bubblers in each of the bubbler groups is 8 to 12.
In a preferred embodiment of the present invention, the distance between two adjacent bubblers in each half is 695 to 705m.
In a preferred embodiment of the present invention, the distance between the outermost bubbler and the side wall of the cooling portion is 1.6 to 2.3m.
In a preferred embodiment of the present invention, the distance between the nozzle of the bubbler and the bottom wall of the cooling part is 665-680 mm.
In a preferred embodiment of the present invention, the gas flow rate of each bubbler is 1.5-2.2 m 3 /h。
The invention has the beneficial effects that:
the process of fading in the production of mass-coloured glass (mass-coloured glass to transparent colourless glass) is critically dependent on the dilution of the colouring agent, it being evident that excessive fading is not possible. Therefore, a key factor limiting the color transition time is homogenization of the molten glass in the cooling section of the furnace (i.e., dilution of the colorant in the cooling section). The invention effectively controls, strengthens and improves the convection system of the glass liquid in the cooling part of the melting furnace by adding two groups of bubblers of the cooling part of the melting furnace, greatly improves the thermal efficiency and homogenization effect of the glass liquid in the cooling part (accelerates the dilution of the coloring agent in the glass liquid in the cooling part), increases the oxidability and the gas quantity of the glass liquid, and is beneficial to the decolorization (fading) of the glass, namely the purpose of quick replacement of the color is achieved. That is, the float glass melting furnace structure of the invention can effectively shorten the production fading time of the body-dyed glass and effectively reduce the production cost.
Drawings
Fig. 1 is a schematic structural view of a float glass furnace according to examples 1 and 2 of the present invention.
Fig. 2 is a schematic cross-sectional view of a cooling portion of a float glass furnace structure in examples 1 and 2 of the present invention.
Detailed Description
The technical scheme of the invention is further illustrated and described below by the specific embodiments in combination with the accompanying drawings.
Example 1
As shown in FIGS. 1 and 2, the main body of the float glass melting furnace is a 600D/T float glass melting furnace, which is composed of a melting part 1, a neck 2, a cooling part 3 and a runner 4 connected in this order, two bubbler groups are provided in the cooling part 3, one bubbler group is located at 1.9m downstream of the neck 2, the other bubbler group is located at 2.2m upstream of the runner 4, and the gas flow rate of each bubbler 5 is 1.5m 3 And/h, to strengthen and improve the convection system of the glass liquid in the cooling part 3, to improve the thermal efficiency and homogenization effect of the glass liquid in the cooling part 3, and to increase the oxidizing property and gas quantity of the glass liquid;
in each of the bubbler groups, the number of bubblers 5 is 8, the bubblers 5 are arranged in a single row along the width direction of the cooling part 3, wherein one half of the bubblers 5 are uniformly arranged at equal intervals on one side of the central line of the width of the cooling part 3, the other half of the bubblers 5 are uniformly arranged at equal intervals on the other side of the central line of the width of the cooling part 3, and meanwhile, the bubblers 5 of one half and the bubblers 5 of the other half are symmetrically arranged relative to the central line of the width of the cooling part 3 in a bobbin way, and the distance between every two adjacent bubblers 5 in each half is 695mm;
the distance between the outermost bubbler 5 and the side wall of the cooling unit 3 was 1.6m, and the distance between the nozzle of the bubbler 5 and the bottom wall of the cooling unit 3 was 665mm.
When the 600D/T float glass melting furnace is not used, the time for producing F green glass to transparent colorless glass (fading) is 12 days; after the float glass melting furnace structure is adopted, the color transfer time is shortened to 7.5 days, and the production cost of enterprises is obviously reduced.
Example 2
As shown in FIGS. 1 and 2, the main body of the float glass melting furnace adopts an 800D/T float glass melting furnace, and is composed of a melting part 1, a neck 2, a cooling part 3 and a runner 4 which are connected in sequence, wherein two bubbler groups are arranged in the cooling part 3, one bubbler group is positioned at 2.8m of the downstream of the neck 2, the other bubbler group is positioned at 3.1m of the upstream of the runner 4, and the gas flow rate of each bubbler 5 is 2.2m 3 And/h, to strengthen and improve the convection system of the glass liquid in the cooling part 3, to improve the thermal efficiency and homogenization effect of the glass liquid in the cooling part 3, and to increase the oxidizing property and gas quantity of the glass liquid;
in each of the bubbler groups, the number of bubblers 5 is 12, the bubblers 5 are arranged in a single row along the width direction of the cooling part 3, wherein one half of the bubblers 5 are uniformly arranged at equal intervals on one side of the central line of the width of the cooling part 3, the other half of the bubblers 5 are uniformly arranged at equal intervals on the other side of the central line of the width of the cooling part 3, and meanwhile, the bubblers 5 of one half and the bubblers 5 of the other half are symmetrically arranged relative to the central line of the width of the cooling part 3 in a bobbin way, and the distance between two adjacent bubblers 5 in each half is 705mm;
the distance between the outermost bubbler 5 and the side wall of the cooling unit 3 was 2.3m, and the distance between the nozzle of the bubbler 5 and the bottom wall of the cooling unit 3 was 680mm.
In the 800D/T float glass melting furnace without using the invention, 9-12 days are required for producing crystal gray glass to transparent colorless glass (fading), and 4-5 days are required for producing emerald green glass to be converted into flag green glass; after the float glass melting furnace structure is adopted, the color transfer time is respectively shortened to 5.5 days and 2 days, and the production cost of enterprises is obviously reduced.
The foregoing description is only illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, i.e., the invention is not to be limited to the details of the invention.
Claims (1)
1. A process method for accelerating the fading process of body-dyed glass is characterized by comprising the following steps of: the float glass melting furnace structure comprises a melting part, a neck, a cooling part and a flow passage which are sequentially connected, wherein two bubbler groups are arranged in the cooling part, one bubbler group is positioned at the position of 1.9-2.8 m of the downstream of the neck, the other bubbler group is positioned at the position of 2.2-3.1 m of the upstream of the flow passage, and the gas flow rate of each bubbler is 1.5-2.2 m 3 And/h, to strengthen and improve the convection system of the glass liquid in the cooling part, to improve the thermal efficiency and homogenization effect of the glass liquid in the cooling part, and to increase the oxidability and gas quantity of the glass liquid;
in each bubbler group, the number of bubblers is 8 to 12, the bubblers are arranged in a single row along the width direction of the cooling part, wherein one half of the bubblers are uniformly arranged on one side of the central line of the width of the cooling part at equal intervals, the other half of the bubblers are uniformly arranged on the other side of the central line of the width of the cooling part at equal intervals, meanwhile, the one half of the bubblers and the other half of the bubblers are symmetrically arranged relative to the central line of the width of the cooling part in a bobbin-symmetric manner, and the distance between every two adjacent bubblers in each half is 695 to 705mm;
the distance between the outermost bubbler and the side wall of the cooling part is 1.6-2.3 m, and the distance between the nozzle of the bubbler and the bottom wall of the cooling part is 665-680 mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710706583.3A CN107473567B (en) | 2017-08-17 | 2017-08-17 | Technological method for accelerating fading process of body-dyed glass |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710706583.3A CN107473567B (en) | 2017-08-17 | 2017-08-17 | Technological method for accelerating fading process of body-dyed glass |
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| CN107473567A CN107473567A (en) | 2017-12-15 |
| CN107473567B true CN107473567B (en) | 2023-06-13 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113636741A (en) * | 2021-08-20 | 2021-11-12 | 中国建材国际工程集团有限公司 | All-electric glass melting furnace |
| CN116395937B (en) * | 2023-04-04 | 2023-09-01 | 蚌埠凯盛玻璃有限公司 | Quick color changing process for glass |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2151572A1 (en) * | 1970-11-06 | 1972-05-10 | Mead Corp | Process and device for carrying out thermodynamically spontaneous redox reactions |
| CN104355528A (en) * | 2014-09-28 | 2015-02-18 | 长兴旗滨玻璃有限公司 | Single-furnace multicolor float glass production line |
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2017
- 2017-08-17 CN CN201710706583.3A patent/CN107473567B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2151572A1 (en) * | 1970-11-06 | 1972-05-10 | Mead Corp | Process and device for carrying out thermodynamically spontaneous redox reactions |
| CN104355528A (en) * | 2014-09-28 | 2015-02-18 | 长兴旗滨玻璃有限公司 | Single-furnace multicolor float glass production line |
Non-Patent Citations (4)
| Title |
|---|
| 平板玻璃工业节能途径初探;王军等;《广东建材》;20060228(第02期);全文 * |
| 建立熔窑对流模型控制玻璃转色中铁含量的变化;李雪莲;《玻璃》;20120925(第09期);全文 * |
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