CN210945324U

CN210945324U - Multi-layer bottom-inserted electrode structure

Info

Publication number: CN210945324U
Application number: CN201921146426.2U
Authority: CN
Inventors: 邹岩辉; 杨万嘉; 韩东; 康明; 罗剑超
Original assignee: SICHUAN FIBERGLASS GROUP CO Ltd
Current assignee: SICHUAN FIBERGLASS GROUP CO Ltd
Priority date: 2019-07-19
Filing date: 2019-07-19
Publication date: 2020-07-07
Anticipated expiration: 2029-07-19

Abstract

The utility model discloses an electrode structure is inserted at bottom of multilayer formula, including the electrode group of at least two-layer difference in height, every electrode group includes the electrode subassembly that includes two sets of different phases at least, bottom of the tank furnace is located to electrode subassembly. Compared with the side-inserting type electrode structure in the prior art, the side-inserting type electrode structure is in the use process, in order to avoid electrode overlong, the application range of the side-inserting type is narrow, and the side-inserting type electrode structure can only be applied to narrow tank furnaces, the utility model discloses an electrode structure has highly different electrode layers, the vertical setting of electrode, and at the in-process of heating, the material in the tank furnace is less to the effort of electrode, and the electrode is not easy to bend, just the utility model discloses an electrode structure can be applied to in the tank furnaces of broad.

Description

Multi-layer bottom-inserted electrode structure

Technical Field

The utility model belongs to the technical field of the glass kiln, concretely relates to electrode structure is inserted at bottom of multilayer formula.

Background

The basalt fiber is a novel environment-friendly material, the main raw material for preparing the basalt fiber is basalt ore, basalt fiber filaments are obtained by melting and drawing the basalt ore, and the basalt fiber has the advantages of high strength, high elastic modulus, high temperature resistance, low temperature resistance, durability and the like, and is widely applied to the fields of buildings, pipelines, traffic roads, aerospace, automobiles, ships and the like.

In the preparation process of basalt fiber, a tank furnace is usually adopted to melt basalt, and the heating temperature of the tank furnace needs to reach about 1500 ℃. The heating mode of the tank furnace comprises gas heating, all-electric melting heating and electric mixed heating, and the gas heating is easy to generate a large amount of sulfides, nitrogen oxides and dust to cause environmental pollution. The full electric melting heating and the electric mixed heating can greatly reduce the pollution caused by the smoke emission, and are suitable for the production of dark glass such as basalt.

Patent 201410130881.9 discloses a tank furnace and a heating method for mass production of continuous basalt fiber, in which an electrode structure is disclosed, which is arranged in a side-inserted manner, and in which electrode groups are arranged in a horizontal state and in multiple layers in the height direction. And on the same horizontal plane, the distance between the adjacent electrodes is 400-500mm, and in the vertical direction, the distance between the adjacent electrodes is 150-250 mm.

In this patent document, although a plurality of electrode groups having different heights are vertically disposed, thereby solving the problem of uneven temperature in the interior of the furnace, the electrodes cannot be excessively long due to the side-inserted electrode structure, and if the electrodes are excessively long, the strength of the electrodes is reduced due to high temperature during use, so that the electrodes are easily bent, and the service life of the electrodes is seriously reduced. In addition, in order to ensure the normal use of the electrodes, the distance between the opposite electrodes on the same level cannot be too large, so that the side-inserted electrode structure cannot be suitable for a wider tank furnace, and the application range of the electrode structure is limited to a certain extent.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the problem of not enough among the above-mentioned prior art of solution, provide an electrode structure is inserted at bottom of multilayer formula, through setting up the electrode group of co-altitude for temperature homogeneous about in the tank furnace can realize the deep level heating, improves the single output of tank furnace, adopts the end to insert simultaneously, avoids the electrode to take place the bending, prolongs the life of electrode, has also solved the limited problem of large-scale tank furnace width simultaneously.

In order to realize the purpose, the utility model discloses a technical scheme be: the electrode assembly comprises at least two electrode assemblies with different heights, each electrode assembly comprises at least two sets of electrode assemblies with different phases, and the electrode assemblies are arranged at the bottom of the tank furnace.

Further, the distance between adjacent electrode assemblies in the same electrode group is 600-2000 mm.

Further, the electrode assembly comprises an electrode and a cooling water jacket, wherein the bottom wall of the tank furnace is provided with an installation hole, the cooling water jacket is sleeved on the outer wall of the electrode, the electrode is inserted into the installation hole, and the cooling water jacket is abutted to the outer wall of the installation hole.

Furthermore, the phase of at least two electrode assemblies in the same electrode group is different, and the electrodes in the electrode assemblies are connected with the single-phase transformer.

Furthermore, when the same phase electrode assembly also can adopt a three-phase transformer, the electrodes in the electrode assembly are connected with the three-phase transformer.

Furthermore, an isolation transformer can be adopted, and the electrodes in the electrode assembly are connected with the isolation transformer.

In the same electrode group, a plurality of electrode assemblies of the same phase are connected in parallel with the transformer. The connection of the electrodes to the transformer is a conventional connection.

Further, the distance between the top of the electrode and the glass liquid level in the tank furnace is 100mm-600 mm. The utility model discloses in, set up the interval at the top of electrode into 100mm-600mm, when the interval of electrode top and glass liquid level was less than 100mm, owing to be provided with the flame heating on the liquid level, can lead to the local height on the spot of temperature of glass liquid level department, cause the temperature uneven distribution of glass liquid, influence glass's melting homogeneity. The distance between the top of the electrode and the liquid level of the glass and the distance between the adjacent electrode assemblies are reasonably arranged, so that the temperature of the glass liquid in the tank furnace is uniform, the heating dead angle is reduced, and the crystallization of the glass liquid at the bottom of the tank furnace is avoided.

Furthermore, a plurality of electrode assemblies are arranged in the same electrode group, the electrode assemblies with opposite phases are oppositely arranged, and the electrode assemblies with the same phase are arranged in a linear or rectangular array along the flowing direction of the glass liquid in the tank furnace.

Specifically, the electrode group comprises a first electrode group and a second electrode group, and the height of the first electrode group is greater than that of the second electrode group; the first electrode group comprises a plurality of first electrode assemblies, the second electrode group comprises a plurality of second electrode assemblies, the electrode assemblies with opposite phases are oppositely arranged, and the first electrode assemblies with the same phases and the second electrode assemblies with the same phases are arranged in a crossed mode along the flowing direction of glass liquid in the tank furnace.

Further, the height difference between the electrodes in the first electrode assembly and the electrodes in the second electrode assembly is 10-30 cm. The height difference between the first electrode assembly and the second electrode assembly is set to be 10-30cm, so that the temperature regulation and the arrangement mode of the electrode assemblies at the bottom of the tank furnace are balanced, the material cost is reduced, and the uniform heating effect of the molten glass can be realized, so that the heating efficiency of the electrodes is improved.

Further, the material of the electrode is molybdenum or tin oxide, or other metals that can be used as the electrode.

Since the technical scheme is used, the beneficial effects of the utility model are that:

the utility model discloses an electrode structure is inserted at bottom of multilayer formula adopts the mode of inserting at the end, inserts the electrode group of establishing the multilayer difference in height in the bottom of tank furnace, on the direction of height, forms the zone of heating that has certain difference in height to the difference in temperature of glass liquid about reducing reduces the heating dead angle, improves the homogeneity of glass liquid in the tank furnace.

Insert formula electrode structure with the side among the prior art and compare, insert formula electrode structure is at the in-process that uses to the side, in order to avoid the electrode overlength, has leaded to the range of application of the formula of inserting of side narrower, only can be applied to narrower tank furnace, the utility model discloses an electrode structure has highly different electrode group, and the vertical setting of electrode, at the in-process of heating, the glass liquid in the tank furnace is less to the effort of electrode, and the electrode is difficult crooked, just the utility model discloses an electrode structure can be applied to in the tank furnace of broad.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as a limitation of scope, and for those skilled in the art, other related drawings can be obtained according to these drawings without inventive efforts.

FIG. 1 is a schematic cross-sectional view of the tank furnace of the present invention along the width direction;

FIG. 2 is a schematic sectional view of the tank furnace along the length direction;

fig. 3 is a first schematic layout diagram of an electrode assembly according to the present invention;

fig. 4 is a second schematic layout view of the electrode assembly of the present invention;

fig. 5 is a third schematic layout view of the electrode assembly of the present invention;

fig. 6 is a fourth schematic layout view of the electrode assembly of the present invention;

reference numerals: 1-tank furnace, 21-first electrode group, 22-second electrode group, 23-third electrode group, 3-electrode group, 31-electrode, 32-cooling water jacket.

Detailed Description

The embodiments of the present invention will be described in detail with reference to fig. 1 to 6;

example (b): a multilayer bottom-inserted electrode structure comprises two groups of electrode groups 2 with different heights, namely a first electrode group 21 and a second electrode group 22, wherein the height of an electrode 31 of the first electrode group 21 is greater than that of an electrode 31 of the second electrode group 22; the electrodes 31 are inserted into the bottom wall of the tank furnace 1, the first electrode group 21 includes a plurality of first electrode assemblies with different phases, the second electrode group 22 includes a plurality of second electrode assemblies, specifically, the electrode assembly 3 includes the electrodes 31 and the cooling water jacket 32, the bottom wall of the tank furnace 1 is provided with an insertion hole, the cooling water jacket 32 is sleeved on the outer wall of the electrodes 31, the electrodes 31 are inserted into the insertion hole, and the cooling water jacket 32 is abutted against the outer wall of the insertion hole. A control system and a transformer are also provided, the electrodes are connected with the transformer, and the control system is used for controlling the heating power, time and the like of the electrodes 31.

As shown in fig. 1 and fig. 2, in the present embodiment, one electrode 31 of the first electrode group 21 is juxtaposed with one electrode 31 of the second electrode group 22, similarly, the other electrode 31 of the first electrode group 21 is juxtaposed with the other electrode 31 of the second electrode group 22, and a connecting line of the two electrodes 31 of the same electrode group is perpendicular to a flow direction of the molten glass (a whole flow direction of the molten glass flowing from the feed opening to the discharge opening on a horizontal plane, ignoring a partial flow of the molten glass), and a plurality of first electrode assemblies having the same phase are arranged in a linear array along the flow direction of the molten glass, and a plurality of second electrode assemblies having the same phase are arranged in a linear array along the flow direction of the molten glass. Note that, in the same electrode group, electrode assemblies of different phases are arranged to face each other.

In other embodiments, a plurality of first electrode assemblies and a plurality of second electrode assemblies are spaced apart as shown in FIG. 4.

In other embodiments of the present invention, three electrode assemblies 3 or four electrode assemblies 3 may be included in the same electrode assembly, and the connection between the electrodes and the transformer is the existing connection method.

More preferably, in the present embodiment, the distance between the electrode assemblies 3 of the first electrode group 21 with opposite phases is 600 mm. The electrode assemblies 3 of the second electrode group 22, which are opposite in phase, are also spaced by 600 mm. In other embodiments of the present invention, the spacing between the electrode assemblies with opposite phases in the same electrode assembly may be 700mm, 800mm, 900mm, 2000mm, etc., specifically designed according to the length-width ratio of the tank furnace 1.

More preferably, the height difference between the tops of the electrodes 31 of the first electrode group 22 and the tops of the electrodes 31 of the second electrode group 22 is 10 cm. The height difference between the top of the electrode 31 of the first electrode group 21 and the glass liquid level in the tank furnace 1 is 100 mm. The height difference between the top of the electrode 31 of the second electrode group 22 and the glass liquid level is 300mm, and the height of the glass liquid level in the tank furnace is 400 mm.

It should be noted that, in the present invention, the distance between the top of the electrode in the electrode group with the lowest height and the bottom of the tank furnace is 100mm-200mm, so that the molten glass at the lower part of the tank furnace can be sufficiently heated, and the temperature of the whole tank furnace is uniform.

In other embodiments of the present invention, when the tank furnace 1 is wider, the electrode sets with different heights may be arranged in a rectangular array along the flowing direction of the molten glass in the tank furnace 1, as shown in fig. 6.

The utility model discloses an in other embodiments, can also set up the electrode group of three group's high differences, the electrode group cross interval of the electrode group of three group's different heights sets up. As shown in fig. 5.

In other embodiments of the present invention, the arrangement of the plurality of electrode groups is not limited to the case illustrated in the present specification, and may be other regular or irregular arrangements, and may also be a triangular arrangement.

Claims

1. A multilayer bottom-inserted electrode structure is characterized in that: the electrode assembly comprises at least two electrode assemblies with different heights, each electrode assembly comprises at least two sets of electrode assemblies with different phases, and the electrode assemblies are arranged at the bottom of the tank furnace.

2. The multi-layer bottom-inserted electrode structure of claim 1, wherein: the distance between the adjacent electrode assemblies in the same electrode group is 600-2000 mm.

3. The multi-layer bottom-inserted electrode structure of claim 1, wherein: the electrode assembly comprises an electrode and a cooling water jacket, wherein the bottom wall of the tank furnace is provided with an inserting hole, the cooling water jacket is sleeved on the outer wall of the electrode, the electrode is inserted into the inserting hole, and the cooling water jacket is abutted to the outer wall of the inserting hole.

4. The multi-layer bottom-inserted electrode structure of claim 1, wherein: the distance between the top of the electrode and the glass liquid level in the tank furnace is 100mm-600 mm.

5. The multi-layer bottom-inserted electrode structure of claim 3, wherein: the electrode is made of molybdenum or tin oxide.