CN113860705A - Electrode layout combined system of large-tonnage glass electric melting furnace - Google Patents
Electrode layout combined system of large-tonnage glass electric melting furnace Download PDFInfo
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- CN113860705A CN113860705A CN202111295220.8A CN202111295220A CN113860705A CN 113860705 A CN113860705 A CN 113860705A CN 202111295220 A CN202111295220 A CN 202111295220A CN 113860705 A CN113860705 A CN 113860705A
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- 238000002844 melting Methods 0.000 title claims abstract description 112
- 230000008018 melting Effects 0.000 title claims abstract description 112
- 239000011521 glass Substances 0.000 title claims abstract description 69
- 238000003780 insertion Methods 0.000 claims abstract description 40
- 230000037431 insertion Effects 0.000 claims abstract description 39
- 238000001816 cooling Methods 0.000 claims abstract description 15
- 238000005352 clarification Methods 0.000 claims abstract description 9
- 239000004744 fabric Substances 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 29
- 230000007547 defect Effects 0.000 abstract description 8
- 239000006060 molten glass Substances 0.000 description 8
- 238000009826 distribution Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Classifications
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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
-
- 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
-
- 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
- C03B5/183—Stirring devices; Homogenisation using thermal means, e.g. for creating convection currents
- C03B5/185—Electric means
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Glass Melting And Manufacturing (AREA)
Abstract
The invention discloses an electrode layout combination system of a large-tonnage glass electric melting furnace, which comprises a melting tank, a T-shaped structure, a first top insertion electrode, a second top insertion electrode and a bottom insertion electrode, wherein the T-shaped structure is arranged in the middle of the melting tank and divides the melting tank into a melting area and a cooling clarification area which are mutually communicated, the melting area above the melting tank is provided with the first top insertion electrode and the second top insertion electrode in a staggered manner according to a certain angle along the circumferential direction, the first top insertion electrode and the second top insertion electrode form a certain included angle with the top surface of the melting tank, the length of the first top insertion electrode is larger than that of the second top insertion electrode, a plurality of bottom insertion electrodes are uniformly arranged along the circumferential direction in the cooling clarification area at the bottom of the melting tank, and the first top insertion electrode, the second top insertion electrode and the bottom insertion electrode are respectively and electrically connected with an electrical control system. The invention effectively solves the problems of insufficient melting of glass liquid, more than 60 tons of glass electric melting furnace glass output, more defects of stones, bubbles and the like.
Description
Technical Field
The invention relates to the technical field of glass electric melting furnaces, in particular to an electrode layout combination system of a large-tonnage glass electric melting furnace.
Background
At present, since the introduction of glass electric melting furnaces into China in the last 80 th century, with the progress of the combination of theoretical research of scientific and technological workers and practical experience of production practitioners, the glass electric melting furnaces have the shadow of the electric melting furnaces in the fields of industrial glass, electronic glass, daily glass and the like due to the use of clean energy, and the market share of the glass electric melting furnaces is gradually expanded. But the method still suffers from the small amount of the daily output of the monomer kiln, which hinders the development of the monomer kiln.
At present, the domestic glass electric melting furnace can produce about 60 tons of glass liquid per day, and the quality of the produced glass liquid is better. However, when the daily yield of the glass liquid is more than 60 tons, the quality of the glass liquid is difficult to ensure, and defects such as bubbles, stones and the like occur. The reason is that when the daily production of glass liquid increases, the area of the melting tank of the kiln is enlarged, the traditional electrode layout is difficult to ensure that the glass liquid in each area of the melting tank is fully melted, so that the local glass liquid in the melting area of the melting tank is not fully melted and enters a cooling clarification area and a forming area, and the generation of glass liquid defects is caused. Therefore, a new electrode layout is needed to solve the problem, and the glass electric melting furnace is promoted to develop towards a larger daily glass liquid tonnage.
Disclosure of Invention
The invention aims to provide an electrode layout combination system of a large-tonnage glass electric melting furnace, which solves the problems that the glass liquid in a melting tank of the large-tonnage glass electric melting furnace can not be fully melted, and bubbles, stones and the like occur due to the problems of electrode distribution and the structure of the melting tank.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention relates to an electrode layout combination system of a large-tonnage glass electric melting furnace, which comprises a melting tank, a T-shaped structure, a first top-inserted electrode, a second top-inserted electrode and a bottom-inserted electrode, the middle part of the melting tank is provided with the T-shaped structure, the melting tank is divided into a melting area and a cooling clarification area which are communicated with each other by the T-shaped structure, the melting area above the melting tank is distributed with the first top-inserted electrode and the second top-inserted electrode at intervals in a staggered way along the circumferential direction at a certain angle, the first top inserting electrode and the second top inserting electrode form a certain included angle with the top surface of the melting tank, the length of the first top inserted electrode is greater than that of the second top inserted electrode, a plurality of bottom inserted electrodes are uniformly arranged in a cooling and clarifying zone at the bottom of the melting tank along the circumferential direction, the first top insertion electrode, the second top insertion electrode and the bottom insertion electrode are respectively and electrically connected with an electrical control system.
Furthermore, the included angle between the first top-inserted electrode and the vertical plane of the melting tank is 8 degrees.
Further, the first top inserting electrode is 250mm-300mm longer than the second top inserting electrode.
Furthermore, two first top-inserted electrodes are in one group, six groups are arranged, the six groups of first top-inserted electrodes are distributed in a regular polygon shape, and the included angle between two adjacent groups of first top-inserted electrodes is 60 degrees; the six second top-inserted electrodes are distributed at equal intervals to form a circle with the same center as the polygon, and the included angle between every two adjacent second top-inserted electrodes is 60 degrees; and the included angle between the central line of each group of the first top inserted electrodes and the adjacent second top inserted electrodes is 30 degrees.
Furthermore, six bottom inserting electrodes are uniformly distributed at the bottom of the melting tank along the circumference, and the included angle between every two adjacent bottom inserting electrodes is 60 degrees; the circle center formed by the bottom insertion electrode and the circle center formed by the second top insertion electrode are the same circle center, the radius of the circle formed by the bottom insertion electrode is smaller than that of the circle formed by the second top insertion electrode, and the included angle between any bottom insertion electrode and the adjacent second top insertion electrode is 30 degrees.
Furthermore, the distance between the two electrodes of each group of first top-inserted electrodes is 8-11 times of the diameter of the electrode body.
Furthermore, the distance between the first top-inserted electrode and the second top-inserted electrode and the wall of the melting tank is 5-8 times of the diameter of the electrode body.
Furthermore, the diameter of the electrode body is designed according to the current density born by the surface area of the electrode, which is less than or equal to 1.2A/cm 2.
Compared with the prior art, the invention has the beneficial technical effects that:
the invention effectively solves the problems of insufficient melting of glass liquid, more than 60 tons of glass electric melting furnace, and more defects of stones, bubbles and the like in the daily output, provides a solution for electrode layout for expanding the domestic glass electric melting furnace to larger tonnage, and promotes the development of the glass electric melting furnace to the daily output glass liquid of larger tonnage.
Drawings
The invention is further illustrated in the following description with reference to the drawings.
FIG. 1 is a front view of an electrode layout combination system of a large tonnage glass electric melter of the present invention;
FIG. 2 is a top view of the electrode layout assembly of the large tonnage glass electric melter of the present invention;
description of reference numerals: 1. a melting tank; 2. a T-shaped structure; 3. a first top-insertion electrode; 4. a second top-inserted electrode; 5. and bottom-inserting the electrode.
Detailed Description
As shown in figure 1, the electrode layout combination system of the large-tonnage glass electric melting furnace comprises a melting tank 1, a T-shaped structure 2, a first top inserted electrode 3, a second top inserted electrode 4 and a bottom inserted electrode 5, wherein the T-shaped structure 2 is arranged in the middle of the melting tank 1, the melting tank 1 is divided into a melting area and a cooling clarification area which are communicated with each other by the T-shaped structure 2, the melting area above the melting tank 1 is distributed with the first top inserted electrode 3 and the second top inserted electrode 4 in a staggered mode according to a certain angle along the circumferential direction, the first top inserted electrode 3 and the second top inserted electrode 4 are both arranged at a certain included angle with the top surface of the melting tank 1, the length of the first top inserted electrode 3 is larger than that of the second top inserted electrode 4, and a plurality of bottom inserted electrodes 5 are uniformly arranged along the circumferential direction in the cooling clarification area at the bottom of the melting tank 1; the first top inserting electrode 3, the second top inserting electrode 4 and the bottom inserting electrode 5 are respectively and electrically connected with an electric control system, and the electric control system is a three-phase open winding and has 6 taps.
In the embodiment, the T-shaped structure 2 divides the melting tank 1 into an upper melting area and a lower cooling and clarifying area, so that the molten glass with defects in the melting area is prevented from entering the cooling and clarifying area, the molten glass with defects in the melting area is blocked by the T-shaped structure 2 of the melting tank 1 and then returns to the melting area for melting, and the molten glass in the melting area can be more fully melted, wherein the boundary between the melting area and the cooling and clarifying area is positioned at the position 350mm-500mm below the second top-inserted electrode 4, and the length of the boundary is positioned between the lower ends of the first top-inserted electrode 3 and the second top-inserted electrode 4 which are arranged; the first top-inserted electrode 3 and the second top-inserted electrode 4 are installed in a top-inserted manner, which is a common technical means in the art and therefore will not be described in detail. First top electrode 3, second top electrode 4 are inserted and are located the top of melting tank 1, for glass liquid melting in the glass electric melting furnace leading-in current, provide the heat source, bottom electrode 5 is inserted and is located the bottom of melting tank 1, for the glass liquid temperature of cooling clarification district is balanced, glass electric melting furnace starts to provide the heat.
Specifically, the included angle between the first top-inserted electrode 3 and the second top-inserted electrode 4 and the vertical plane of the melting tank 1 is 8 °. The first top inserted electrode 3 is 250mm-300mm longer than the second top inserted electrode 4.
In the embodiment, the first top-inserting electrode 3 and the second top-inserting electrode 4 are controlled by an electrical control system to independently deliver power, so that a layered and adjustable heat source is provided in the melting area of the melting tank 1 in the longitudinal direction, layered adjustment can be realized according to melting requirements, and a relatively uniform heat source is provided for the melting of molten glass in the longitudinal direction.
Specifically, two first top-inserted electrodes 3 are in one group, six groups are arranged, the six groups of first top-inserted electrodes 3 are distributed in a regular polygon shape, and the included angle between two adjacent groups of first top-inserted electrodes 3 is 60 degrees; the six second top-inserted electrodes 4 are distributed at equal intervals to form a circle with the same center as the polygon, and the included angle between every two adjacent second top-inserted electrodes 4 is 60 degrees; the central line of each group of the first top inserted electrodes 3 and the adjacent second top inserted electrodes 4 form an included angle of 30 degrees.
In the embodiment, the first top-inserted electrode 3 and the second top-inserted electrode 4 are uniformly distributed in the horizontal direction of the melting tank 1, and provide a relatively uniform heat source for transverse molten glass melting.
Specifically, six bottom-inserted electrodes 5 are uniformly distributed at the bottom of the melting tank 1 along the circumference, and the included angle between two adjacent bottom-inserted electrodes 5 is 60 degrees; the circle center formed by the bottom insertion electrode 5 and the circle center formed by the second top insertion electrode 4 are the same circle center, the radius of the circle formed by the bottom insertion electrode 5 is smaller than that of the circle formed by the second top insertion electrode 4, and the included angle between any bottom insertion electrode 5 and the adjacent second top insertion electrode 4 is 30 degrees.
In this embodiment, the bottom insertion electrodes 5 are circumferentially distributed at the bottom of the melting tank 1, so as to provide heat for the start of the glass electric melting furnace, and the bottom insertion electrodes 5 are distributed in the inner ring of the top insertion electrode, so that the bottom insertion electrodes 5 interact with the top insertion electrode, and the problem of heat attenuation in the middle of a circle formed by the top insertion electrode is solved through the bottom insertion electrodes 5.
Specifically, the distance between the two electrodes of each group of first top-inserted electrodes 3 is 8-11 times of the diameter of the electrode body.
Specifically, the distance between the first top-inserted electrode 3 and the second top-inserted electrode 4 and the wall of the melting tank 1 is 5-8 times of the diameter of the electrode body. The diameter of the electrode is less than or equal to 1.2A/cm according to the current density borne by the surface area of the electrode2And (5) designing.
In the embodiment, the first top-inserted electrode 3 and the second top-inserted electrode 4 are far away from the wall of the melting tank 1, and the glass liquid circulating flow generated by the electrodes is far away from the wall of the melting tank, so that the corrosion to the refractory material of the wall of the melting tank is reduced.
The using process of the invention is as follows:
first, when the glass electric melting furnace is operated, power is transmitted to the first top-plug electrode 3 and the second top-plug electrode 4 through the electric control system, and the power is a main heat source of the glass electric melting furnace. The first top-inserted electrode 3 and the second top-inserted electrode 4 are far away from the wall of the melting tank 1, and the molten glass circulating flow generated by the electrodes is far away from the wall of the melting tank, so that the corrosion to the refractory material of the wall of the melting tank is reduced; the first top-inserted electrode 3 and the second top-inserted electrode 4 are uniformly distributed around the melting tank 1, and the current is conveyed to the periphery of the melting tank 1 through the top-inserted electrodes, so that the uniform distribution is ensured, no power distribution dead angle is transversely formed, and the molten glass is fully melted. The first top-inserted electrode 3 is longer than the second top-inserted electrode 4 by 250-300mm, and the power distribution is ensured in the longitudinal direction of the melting tank 1 of the glass electric melting furnace. Thus, the power distribution of the melting area of the melting tank 1 is free from dead angles, and the molten glass in each part can be fully melted. The glass liquid is driven by an electrode heat source to generate glass liquid circulating liquid flow, the T-shaped structure 2 effectively blocks the glass liquid which is in downward stroke on the wall part of the tank, the glass liquid with quality defects continuously flows back to the melting area to be continuously melted, and the glass liquid with quality reaching the standard enters the cooling and clarifying area after the process is repeated. The bottom inserted electrode 5 supplements the temperature of the glass liquid entering the cooling and clarifying area, so that the temperature of the glass liquid is proper when the glass liquid enters the forming area.
The problem that the glass electric melting furnace glass liquid of 60 tons of material output per day is not enough in melting, and defects such as stones and bubbles are many can be realized to this embodiment, finds in the present practical application process, and this embodiment can be applied to the melting of 70 tons of glass electric melting furnace glass liquid of material output per day, and glass liquid temperature is balanced, and the melting is abundant, effectively promotes glass electric melting furnace to produce the glass liquid direction development to more tonnage day output.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the scope of the present invention is defined by the claims.
Claims (8)
1. The utility model provides a large-tonnage glass electric melting furnace electrode overall arrangement combined system which characterized in that: insert electrode (3), second top and insert electrode (5) including melting pond (1), T type structure (2), first top, T type structure (2) will melting pond (1) divide into melting zone and the cooling clarification area of mutual intercommunication, the melting zone that is located melting pond (1) top is equipped with according to certain angle staggered interval cloth along the circumferencial direction electrode (4) are inserted on first top, second top, first top insert electrode (3), second top insert electrode (4) all with the top surface of melting pond (1) is certain contained angle, the length that electrode (3) was inserted on first top is greater than the length that electrode (4) was inserted on the second top, a plurality of bottom insert electrode (5) the cooling clarification area of melting pond (1) bottom is evenly arranged along the circumferencial direction, the first top insertion electrode (3), the second top insertion electrode (4) and the bottom insertion electrode (5) are respectively and electrically connected with an electric control system.
2. The large-tonnage glass electric melter electrode layout combination system of claim 1, wherein: the included angles between the first top inserting electrode (3) and the second top inserting electrode (4) and the vertical surface of the melting tank (1) are 8 degrees.
3. The large-tonnage glass electric melter electrode layout combination system of claim 1, wherein: the first top inserting electrode (3) is 250-300mm longer than the second top inserting electrode (4).
4. The large-tonnage glass electric melter electrode layout combination system of claim 3, wherein: the two first top-inserted electrodes (3) are divided into one group, six groups are arranged, the six groups of first top-inserted electrodes (3) are distributed in a regular polygon shape, and the included angle between every two adjacent groups of first top-inserted electrodes (3) is 60 degrees; the six second top-inserted electrodes (4) are distributed at equal intervals to form a circle with the same center as the polygon, and the included angle between every two adjacent second top-inserted electrodes (4) is 60 degrees; the included angle between the central line of each group of the first top inserted electrodes (3) and the adjacent second top inserted electrodes (4) is 30 degrees.
5. The large tonnage glass electric melter electrode layout assembly system of claim 4, wherein: six bottom inserting electrodes (5) are uniformly distributed at the bottom of the melting tank (1) in the circumferential direction, and the included angle between every two adjacent bottom inserting electrodes (5) is 60 degrees; the centre of a circle that electrode (5) formed is inserted to the end with the centre of a circle that electrode (4) formed is inserted to the second top is same centre of a circle, the radius of the circle that electrode (5) formed is inserted to the end is less than the radius of the circle that electrode (4) formed is inserted to the second top, arbitrary electrode (5) are inserted to the end and adjacent the contained angle of electrode (4) is inserted to the second top is 30.
6. The large tonnage glass electric melter electrode layout assembly system of claim 4, wherein: the distance between the two electrodes of each group of the first top insertion electrodes (3) is 8-11 times of the diameter of the electrode body.
7. The large-tonnage glass electric melter electrode layout combination system of claim 6, wherein: the distance between the first top inserted electrode (3) and the second top inserted electrode (4) and the wall of the melting tank (1) is 5-8 times of the diameter of the electrode body.
8. The large-tonnage glass electric melter electrode layout combination system of claim 7, wherein: the diameter of the electrode body is less than or equal to 1.2A/cm according to the current density borne by the surface area of the electrode2And (5) designing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111295220.8A CN113860705B (en) | 2021-11-03 | 2021-11-03 | Electrode layout combination system of large-tonnage glass electric melting furnace |
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| CN202111295220.8A CN113860705B (en) | 2021-11-03 | 2021-11-03 | Electrode layout combination system of large-tonnage glass electric melting furnace |
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| CN113860705B CN113860705B (en) | 2024-02-20 |
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2021
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