CN110937785B - Melting furnace for continuously producing hollow glass balls and production method - Google Patents
Melting furnace for continuously producing hollow glass balls and production method Download PDFInfo
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- CN110937785B CN110937785B CN201911352687.4A CN201911352687A CN110937785B CN 110937785 B CN110937785 B CN 110937785B CN 201911352687 A CN201911352687 A CN 201911352687A CN 110937785 B CN110937785 B CN 110937785B
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B19/00—Other methods of shaping glass
- C03B19/10—Forming beads
- C03B19/109—Glass-melting furnaces specially adapted for making beads
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B19/00—Other methods of shaping glass
- C03B19/10—Forming beads
- C03B19/107—Forming hollow beads
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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
- C03B5/027—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in electric furnaces, e.g. by dielectric heating by passing an electric current between electrodes immersed in the glass bath, i.e. by direct resistance heating
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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
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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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
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- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Glass Compositions (AREA)
Abstract
The invention discloses a melting furnace for continuously producing hollow glass balls, which comprises an open melting furnace body, wherein the melting furnace body is divided into a melting chamber and a bubbling chamber by a vertical baffle plate, and the melting chamber is communicated with the lower part of the bubbling chamber; the side wall and the bottom of the melting chamber are respectively provided with a rod-shaped heating electrode, the side wall of the bubbling chamber is provided with a plate-shaped heating electrode, and a group of bubblers are distributed at the bottom of the bubbling chamber; a horizontal solution flow channel is arranged at the top of the bubbling chamber, the direction of the solution flow channel is consistent with that of the baffle plate, and the solution flow channel is communicated with the top of the bubbling chamber; during production, the glass batch is melted in the melting chamber, bubbles are continuously generated in the bubbling chamber, the bubbles continuously rise and are separated from the molten glass when reaching the interface of the molten glass, and the bubbles enter molten salt solution to form hollow glass spheres; the melting furnace and the production method can realize continuous production of the hollow glass balls and reduce the production difficulty.
Description
Technical Field
The invention relates to the technical field of glass manufacturing, in particular to a melting furnace for continuously producing hollow glass balls and a production method.
Background
The hollow glass ball has the advantages of light weight, small density, high strength, good insulativity, strong heat insulation, strong stability and the like, can be used as high-quality lightweight aggregate, and has wide application. For example, the waterproof heat-insulation board can be made into a novel waterproof heat-insulation board together with an adhesive, and can be applied to house buildings to effectively solve the problem of seepage prevention and leakage prevention which are troublesome in the current building industry.
At present, related scientific research and technical personnel have more detailed researches on the preparation and surface modification of hollow glass microspheres with the diameter of micron, and mainly comprise preparation methods such as a solid-phase powder method, a liquid-phase atomization method and a soft chemical method. (Songxui Rui, Yanghui. hollow glass microsphere preparation technology research progress [ J ] silicate science, 2012, 3-40) the related spherical materials are mainly applied to the high-tech technical fields of aerospace, deep sea exploration and the like, but the research on the hollow glass spheres with the diameter of millimeter level is very little.
The technical scheme includes that an Anodonta glass industrial design research institute provides a production process of a closed-cell multi-chamber hollow glass ball, namely, electrodes are adopted to heat cullet in a melting furnace to melt the cullet, bubbles are blown into glass liquid through a bubbling device, the glass liquid containing the bubbles flows out from a liquid flowing hole, a material drop is cut through a cutting device, and the closed-cell multi-chamber hollow glass ball is formed after cooling and solidification. (Chenshuyong, Wangyu, Pengzhong et al. & ltA method for producing closed-cell multi-chamber hollow glass ball & gt patent publication No. CN 106587579A). And simultaneously, a tin liquor bubbling production process of the hollow glass spheres is provided, wherein a bubbling device is used for stably blowing hollow glass liquid bubbles into a forming tin bath, the hollow glass liquid bubbles naturally separate and float in tin liquor under the action of buoyancy after reaching a certain size, and meanwhile, the hollow glass liquid bubbles are naturally spheroidized under the action of surface tension. (Chenshuyong, Wangyu, Pengze, etc.. patent publication No. CN205710405U of tin liquid bubbling device of hollow glass ball). The sizes of the glass balls produced by the two methods are limited, each glass ball needs to be accurately controlled, the manufacturing difficulty and the process cost are increased, and continuous production cannot be realized.
The manufacturing difficulty of the hollow glass ball is high, the cost is high, so that the industrial production can not be realized until now, the hollow glass ball still stays in a laboratory stage, and the commercialization of the hollow glass ball is seriously hindered.
Disclosure of Invention
The invention aims to provide a melting furnace for continuously producing hollow glass spheres and a production method thereof, and the melting furnace and the production method can realize continuous production of the hollow glass spheres and reduce the production difficulty.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a melting furnace for continuously producing hollow glass balls comprises an open melting furnace body, wherein the melting furnace body is divided into a melting chamber and a bubbling chamber by a vertical baffle plate, and the melting chamber is communicated with the lower part of the bubbling chamber; the side wall and the bottom of the melting chamber are respectively provided with a rod-shaped heating electrode, the side wall of the bubbling chamber is provided with a plate-shaped heating electrode, and a group of bubblers are distributed at the bottom of the bubbling chamber; and a horizontal solution flow channel is arranged at the top of the bubbling chamber, the direction of the solution flow channel is consistent with that of the baffle, and the solution flow channel is communicated with the top of the bubbling chamber.
Furthermore, a feeder for adding glass batch materials to the melting chamber is arranged above the melting chamber.
The invention also provides a production method for continuously producing the hollow glass spheres, which comprises the following steps:
a. in the melting furnace of the scheme, the glass batch is added into the melting chamber;
b. melting the glass batch into molten glass by a rod-shaped heating electrode;
c. the glass liquid flows into the bubbling chamber from the lower part of the baffle;
d. adding molten salt solution into the solution flow channel, wherein the molten salt solution flows above the glass liquid in the bubbling chamber;
e. the plate-shaped heating electrode controls the temperature of the glass liquid in the bubbling chamber, and the bubbler bubbles;
f. the bubbles rise into the molten salt solution to form hollow glass spheres.
The invention has the advantages that the glass batch is melted in the melting chamber, bubbles are continuously generated in the bubbling chamber, and continuously rise, and when reaching the interface of glass liquid, the bubbles are separated from the glass liquid under the action of forced traction force generated by the bubbler and self buoyancy, and enter molten salt solution to form hollow glass balls; the melting furnace and the production method can realize continuous production of the hollow glass spheres and reduce the production difficulty.
Drawings
The invention is further illustrated with reference to the following figures and examples:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a side view of the present invention;
fig. 3 is a top view of the present invention.
Detailed Description
Referring to fig. 1 to 3, the invention provides a melting furnace for continuously producing hollow glass balls, which comprises an open melting furnace body 1, wherein the melting furnace body 1 is divided into a melting chamber 3 and a bubbling chamber 4 by a vertical baffle 2, and the melting chamber 3 is communicated with the lower part of the bubbling chamber 4; a feeder 9 for adding glass batch materials to the melting chamber 3 is arranged above the melting chamber 3; the side wall and the bottom of the melting chamber 3 are respectively provided with a rod-shaped heating electrode 5, the side wall of the bubbling chamber 4 is provided with a plate-shaped heating electrode 6, a group of bubblers 7 are distributed at the bottom of the bubbling chamber 4, and the bubblers 7 can be distributed according to a rectangular array; a horizontal solution flow channel 8 is arranged at the top of the bubbling chamber 4, the direction of the solution flow channel 8 is consistent with that of the baffle 2, and the solution flow channel 8 is communicated with the top of the bubbling chamber 4; the bottom edge of the solution flow channel is connected with the bubbling chamber and the baffle to form an integrated structure.
The invention also provides a production method for continuously producing the hollow glass spheres, which comprises the following steps:
a. in the melting furnace adopting the scheme, the glass batch 10 is added into the melting chamber 3 through the feeder 9;
b. a rod-shaped heating electrode 5 melts the glass batch 10 into molten glass 11;
c. the molten glass 11 flows into the bubbling chamber 4 from the lower part of the baffle plate 2;
d. adding a molten salt solution 12 into the solution flow channel 8, wherein the density of the molten salt solution 12 is lower than that of the glass liquid, the molten salt solution 12 coexists with the glass liquid at 1000-1400 ℃ and is immiscible with the glass liquid, and the molten salt solution 12 flows above the glass liquid in the bubbling chamber; the depth of the molten salt solution 12 is 10-50 cm;
e. the temperature of the glass liquid in the bubbling chamber is controlled by the plate-shaped heating electrode 6 to reach the proper viscosity of the glass liquid, and simultaneously bubbles 13 are bubbled by the bubbler 7; the distance between the top end of the bubbler 7 and the liquid level of the glass liquid is 20-40 cm;
f. the bubbles 13 rise continuously, after reaching the liquid level of the glass liquid, the bubbles are separated from the glass liquid under the action of forced traction force generated by a bubbler and self buoyancy, and enter molten salt solution above the glass liquid to form hollow glass spheres 14; and under the driving of the continuous flowing of the molten salt solution, the hollow glass balls leave the glass melting furnace along with the molten salt solution.
The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any manner; those skilled in the art can make numerous possible variations and modifications to the present teachings, or modify equivalent embodiments to equivalent variations, without departing from the scope of the present teachings, using the methods and techniques disclosed above. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the protection of the technical solution of the present invention.
Claims (1)
1. A production method for continuously producing hollow glass balls is characterized in that:
the melting furnace for producing the hollow glass balls comprises an open melting furnace body, the melting furnace body is divided into a melting chamber and a bubbling chamber through a vertical baffle, the melting chamber is communicated with the lower part of the bubbling chamber, rod-shaped heating electrodes are respectively arranged on the side wall and the bottom of the melting chamber, a plate-shaped heating electrode is arranged on the side wall of the bubbling chamber, a group of bubblers are distributed at the bottom of the bubbling chamber, a horizontal melt flow channel is arranged at the top of the bubbling chamber, the direction of the melt flow channel is consistent with that of the baffle, the melt flow channel is communicated with the top of the bubbling chamber, and a feeder for adding glass batch to the melting chamber is arranged above the melting chamber;
the method comprises the following steps:
a. adding glass batch into the melting chamber by adopting the melting furnace;
b. melting the glass batch into molten glass by a rod-shaped heating electrode;
c. the glass liquid flows into the bubbling chamber from the lower part of the baffle;
d. adding molten salt solution into the solution flow channel, wherein the molten salt solution flows above the glass liquid in the bubbling chamber;
e. the plate-shaped heating electrode controls the temperature of the glass liquid in the bubbling chamber, and the bubbler bubbles;
f. the bubbles rise into the molten salt solution to form hollow glass spheres.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911352687.4A CN110937785B (en) | 2019-12-25 | 2019-12-25 | Melting furnace for continuously producing hollow glass balls and production method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911352687.4A CN110937785B (en) | 2019-12-25 | 2019-12-25 | Melting furnace for continuously producing hollow glass balls and production method |
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| Publication Number | Publication Date |
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| CN110937785A CN110937785A (en) | 2020-03-31 |
| CN110937785B true CN110937785B (en) | 2022-05-17 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104114504A (en) * | 2011-12-21 | 2014-10-22 | 普莱克斯技术有限公司 | Controlling glassmelting furnace gas circulation |
| CN105906192A (en) * | 2016-04-21 | 2016-08-31 | 中国建材国际工程集团有限公司 | Tin liquid bubbling production process and tin liquid bubbling production apparatus for hollow glass spheres |
| CN107522387A (en) * | 2017-09-14 | 2017-12-29 | 中国建材国际工程集团有限公司 | Melting furnaces for TFT glass |
| CN108409107A (en) * | 2018-04-17 | 2018-08-17 | 湖北新华光信息材料有限公司 | A kind of manufacturing method and device of the high consistency optical glass of high uniformity |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007099576A (en) * | 2005-10-06 | 2007-04-19 | Nippon Sheet Glass Co Ltd | Method and apparatus for manufacturing float glass |
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- 2019-12-25 CN CN201911352687.4A patent/CN110937785B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104114504A (en) * | 2011-12-21 | 2014-10-22 | 普莱克斯技术有限公司 | Controlling glassmelting furnace gas circulation |
| CN105906192A (en) * | 2016-04-21 | 2016-08-31 | 中国建材国际工程集团有限公司 | Tin liquid bubbling production process and tin liquid bubbling production apparatus for hollow glass spheres |
| CN107522387A (en) * | 2017-09-14 | 2017-12-29 | 中国建材国际工程集团有限公司 | Melting furnaces for TFT glass |
| CN108409107A (en) * | 2018-04-17 | 2018-08-17 | 湖北新华光信息材料有限公司 | A kind of manufacturing method and device of the high consistency optical glass of high uniformity |
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| CN110937785A (en) | 2020-03-31 |
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Address after: No.1047 Tushan Road, Bengbu City, Anhui Province 233000 Applicant after: China Building Materials Glass New Materials Research Institute Group Co.,Ltd. Address before: 233010 Tushan Road 1047, Yuhui District, Bengbu City, Anhui Province Applicant before: CHINA BUILDING MATERIALS BENGBU GLASS INDUSTRY DESIGN & RESEARCH INSTITUTE Co.,Ltd. |
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