Electrode brick supporting structure of electronic glass kiln

Abstract

The utility model relates to the technical field of glass production, in particular to an electronic glass kiln electrode brick supporting structure which comprises an electrode front end support and an electrode rear end support, and the electrode rear end support is arranged on the outer side of the electrode front end support. The electrode front end support comprises a kiln tank bottom and an adjusting cushion layer, and the adjusting cushion layer is arranged at the top of the kiln tank bottom; an electrode front end support and an electrode rear end support are selected to support the electrode, an adjusting cushion layer is arranged at the top of the bottom of the kiln, and the adjusting cushion layer is melted after the temperature of the kiln is increased, so that when the heating expansion height of the bottom of the kiln is increased, the expansion height of the bottom of the kiln can compensate the thickness of the melted adjusting cushion layer; the electrodes can be kept in a horizontal state before and after operation, different erosion amounts of the front end parts of the electrodes are avoided, the distances between the front end surfaces of the electrodes on the two opposite sides of the kiln are ensured to be the same, the service life of the pool wall of the kiln is ensured, shutdown of the kiln is reduced, the operation efficiency is improved, and the maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of glass production technology, specifically to an electrode brick support structure for an electronic glass kiln. Background Technology

[0002] Electric heating is currently the main method used in the electronic glass furnace. Tin oxide electrodes are the most widely used material because tin oxide not only has good electrical conductivity, but its composition also has the effect of glass clarification. However, tin oxide electrodes are continuously consumed during operation and need to be pushed into the furnace with the electrode end facing out periodically.

[0003] When the electrode is initially installed, the front end of the electrode is placed on the bottom of the furnace pool, and the rear end of the electrode is supported by a propulsion device while simultaneously propelling the electrode; for example, Chinese invention patent application No. 202311074707.2 provides a pushing assembly and method for a glass furnace electrode, including a frame assembly, multiple driving assemblies fixedly coupled to the frame assembly, and a pushing frame coupled to the multiple driving assemblies and configured to apply a thrust to the electrode.

[0004] Although existing technology can reliably push the electrode forward during operation, in actual operation, when the kiln starts to heat up, the refractory material structure at the bottom of the pool below the electrode front end expands due to heat, increasing the height of the pool bottom bricks. The upward expansion of the pool bottom bricks disrupts the initial horizontal state of the electrode. The rear end of the electrode is connected to the propulsion device outside the kiln, and its height remains unchanged, resulting in the electrode being higher in the front and lower in the back during operation.

[0005] When the electrodes operate in this state, the amount of erosion on the front side of the electrodes near the glass solution will be uneven. It will also cause the distance between the front faces of the two electrodes on opposite sides of the furnace to be different. If this state is maintained during operation, the electrochemical action around the electrodes will increase the amount of erosion on the upper part of the furnace pool wall, which will directly affect the life of the furnace pool wall, thereby affecting the service life of the furnace and reducing production efficiency. Utility Model Content

[0006] The purpose of this invention is to provide a support structure for electrode bricks in electronic glass kilns, thereby solving the technical problem that the service life of kilns is reduced due to the thermal expansion of electrode bricks at the bottom of the kiln.

[0007] The solution of this utility model to the above-mentioned technical problems is as follows:

[0008] An electrode brick support structure for an electronic glass kiln includes an electrode front end support and an electrode rear end support, wherein the electrode rear end support is disposed on the outside of the electrode front end support.

[0009] The electrode front end support includes the kiln pool bottom and an adjustment pad layer, with the adjustment pad layer positioned on top of the kiln pool bottom.

[0010] Furthermore, the height of the electrode rear end support is the same as the height of the electrode front end support.

[0011] Furthermore, the electrode front end support also includes an electrode pad brick, which is disposed between the bottom of the kiln pool and the adjustment pad layer.

[0012] Further, the top of the electrode rear end support is provided with a plurality of support balls, and the plurality of support balls are arranged in an array along the length direction of the electrode rear end support.

[0013] Further specifying, the adjusting pad is a glass filling layer.

[0014] Furthermore, the thickness of the adjustment pad is specified to be 5mm to 7mm.

[0015] Further specifying, the adjustment pad is a thin glass plate.

[0016] Furthermore, the thickness of the adjustment pad is specified to be 8mm to 10mm.

[0017] Further defined, the adjusting pad layer includes a glass feed layer and a glass sheet, with the glass sheet located above the glass feed layer.

[0018] Further specified, the thickness of the glass material layer is 2mm~3mm, and the thickness of the glass sheet is 4mm~5mm.

[0019] The beneficial effects of this utility model are as follows:

[0020] 1. This utility model selects electrode front-end support and electrode rear-end support to support the electrode, and sets an adjustment pad at the top of the kiln bottom. The adjustment pad melts after the kiln temperature rises, so that when the kiln bottom expands due to heat, the expansion height of the kiln bottom can compensate for the thickness of the melted adjustment pad. This ensures that the electrode remains horizontal before and after operation, avoids different erosion at the electrode front end, and ensures that the distance between the electrode front ends on both sides of the kiln is the same, thus ensuring the service life of the kiln wall, reducing downtime, improving operating efficiency, and reducing maintenance costs.

[0021] 2. This utility model uses a glass feed layer and a glass sheet, which not only ensures that the electrode remains horizontal during operation, but also adapts to the expansion of the kiln pool bottom at different temperatures in conjunction with the heating process, so as to keep the electrode in a horizontal state more stably and reliably, further improve the erosion uniformity of the electrode front end, and increase the service life of the kiln pool wall. Attached Figure Description

[0022] Figure 1This is a schematic diagram of the electrode brick support structure of the electronic glass kiln described in Embodiment 1 of this utility model;

[0023] Figure 2 This is a schematic diagram of the electrode brick support structure of the electronic glass kiln described in Embodiment 2 of this utility model;

[0024] Figure 3 This is a schematic diagram of the electrode brick support structure of the electronic glass kiln described in Embodiment 3 of this utility model;

[0025] In the figure, 11-adjustment pad; 12-electrode pad brick; 13-kiln pool bottom; 20-electrode rear end support; 30-electrode. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0027] Example 1

[0028] refer to Figure 1 This utility model provides an electrode brick support structure for an electronic glass kiln, including an electrode front end support for supporting the front end of the electrode 30 and an electrode rear end support 20 for supporting the rear end of the electrode 30.

[0029] Specifically, the electrode front end support includes the adjustment pad 11 and the kiln pool bottom 13.

[0030] The furnace bottom 13 is constructed by stacking 13 layers of bottom bricks. The front side of the electrode 30 is located at the top of the furnace bottom 13 and comes into contact with the molten glass flowing inside the furnace during operation. The molten glass melts the glass material by increasing the temperature of the electrodes 30 on opposite sides of the furnace. As the temperature increases, the furnace bottom 13 expands along its height direction after being heated. To avoid increasing the height of the furnace bottom 13 and raising the height of the front end of the electrode 30, an adjustment pad 11 is placed at the top of the furnace bottom 13 so that the front end of the electrode 30 contacts the adjustment pad 11.

[0031] The adjusting pad 11 can melt in a high-temperature environment, so the expansion of the furnace bottom 13 in the height direction can compensate for the melted adjusting pad 11, thereby keeping the front end of the electrode 30 at the same height before and after heating.

[0032] To further clarify, the height of the electrode rear end support 20 is the same as the height of the electrode front end support.

[0033] That is, the height of the electrode rear end support 20 is determined according to the height of the kiln bottom 13 after heating, so that the electrode 30 remains horizontal during operation.

[0034] The thickness of the adjusting pad 11 is determined based on the height of the kiln bottom 13 before heating, and the thickness of the adjusting pad 11 is the height difference of the kiln bottom 13 before and after heating.

[0035] To further explain, the adjusting pad 11 is selected as the glass feed layer, which is preferably composed of glass raw materials in the furnace, such as silicon dioxide, calcium carbonate, magnesium sulfate and sodium sulfate; during the furnace heating process, when the temperature rises to above 1100℃, the glass feed layer melts into a liquid state; the thickness of the glass sheet can be selected from 8mm to 10mm, for example 8mm.

[0036] To further explain, the rear end of electrode 30 can be stably supported by electrode rear end support 20, so that electrode 30 can be kept in a horizontal state. During the advancement of electrode 30, electrode 30 slides on the top of electrode rear end support 20, which provides guidance for the movement of electrode 30 and prevents electrode 30 from deviating.

[0037] Preferably, multiple support balls are provided on the top of the electrode rear end support 20. The support balls are preferably arranged in two rows. The two rows of support balls are movably connected to the top of the electrode rear end support 20 through the support. While supporting the symmetrical sides of the electrode 30, the two rows of support balls reduce the friction between the electrode 30 and the top of the electrode rear end support 20, thereby reducing the difficulty of advancing the electrode 30.

[0038] To further explain, the electrode front end support also includes electrode pad brick 12, which is set between the kiln bottom 13 and the adjustment pad layer 11 to facilitate the movement and adjustment of the support position of the electrode 30. Since the electrode pad brick 12 will also expand when heated, the thickness of the adjustment pad layer 11 needs to take into account both the expansion of the electrode pad brick 12 and the expansion of the kiln bottom 13.

[0039] Working principle:

[0040] In actual operation, the thickness of the adjustment pad 11 is first determined based on the total height difference between the original kiln bottom 13 and the electrode pad brick 12 before and after heating. Then, the adjustment pad 11 with the determined thickness is laid at the position where the electrode pad brick 12 contacts the electrode 30.

[0041] Next, place the rear end of electrode 30 between the two rows of support balls at the top of electrode rear end support 20, and place the front end of electrode 30 on the adjustment pad layer 11.

[0042] After the operation begins, the electrode 30 is energized, causing the temperature inside the kiln to gradually rise. The bottom 13 of the kiln pool and the electrode pad brick 12 gradually expand due to the heat. At the same time, the adjustment pad 11 gradually melts as the temperature inside the kiln rises. Under the action of gravity, the electrode 30 approaches the top of the electrode pad brick 12.

[0043] The molten adjusting pad 11 flows into or out of the kiln. It is preferable for the adjusting pad 11 to flow out of the kiln to avoid interfering with the raw materials inside the kiln. If the composition of the adjusting pad 11 is the same as that of the raw materials, it is preferable for the adjusting pad 11 to flow into the kiln to reduce the difficulty and cost of subsequent cleaning.

[0044] After the temperature inside the kiln rises to the operating temperature, the adjusting pad 11 is completely melted, and the bottom of the kiln pool 13 causes the top height of the electrode pad brick 12 to increase to the same height as the rear electrode support 20, thereby ensuring that the electrode 30 remains horizontal during operation.

[0045] Example 2

[0046] refer to Figure 2 Unlike Embodiment 1, the adjustment pad 11 of the electrode brick support structure for the electronic glass kiln provided in this embodiment is selected as a thin glass plate.

[0047] The glass sheet is a glass product; for example, the glass sheet is selected as alkali-free low borosilicate glass. The glass sheet can soften at temperatures below 1100 degrees Celsius. After the adjustment pad 11 softens, under the action of the gravity of the electrode 30, the height change of the electrode 30 can adapt to the expansion rate of the bottom 13 of the kiln pool when the kiln is rapidly heated, thereby meeting the requirement that the electrode 30 maintains a horizontal state.

[0048] The thickness of the glass can also be selected from 5mm to 7mm, for example, 6mm.

[0049] The adjusting pad 11 can also be made of other materials that can melt into a liquid state at different temperatures, so that the electrode 30 can remain horizontal during operation.

[0050] Example 3

[0051] refer to Figure 3 Unlike Embodiments 1 and 2, the electrode brick support structure for the electronic glass kiln provided in this embodiment includes a glass sheet and a glass feed layer 11, with the glass sheet located above the glass feed layer.

[0052] The thickness of the glass material layer can be selected from 2mm to 3mm, for example, 2.5mm; the thickness of the glass sheet can be selected from 4mm to 5mm, for example, 4.5mm, and the thickness of the pad 11 is adjusted to 7mm.

[0053] The adjusting pad 11 can also be made of different materials to match the heating process during different stages of kiln heating. The adjusting pad 11 melts layer by layer, matching the melting of the adjusting pad 11 with the expansion of the kiln bottom 13. This makes the electrode 30 more stable and reliable during the kiln heating process, further improving the service life of the kiln, increasing operating efficiency, and meeting actual operating needs.

[0054] To further explain, the adjusting pad 11 can also be composed of thin plates of three or more materials, so that the melting of the adjusting pad 11 matches the expansion of the kiln bottom 13, and further improves the stability of the electrode 30 in maintaining a horizontal position.

[0055] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of this utility model.

Claims

1. An electrode brick support structure for an electronic glass kiln, characterized by, The electrode front end support comprises a kiln pool bottom (13) and an adjusting pad layer (11) arranged on the top of the kiln pool bottom (13). The electrode front end support comprises a kiln pool bottom (13) and an adjusting pad layer (11) arranged on the top of the kiln pool bottom (13).

2. The electronic glass kiln electrode brick support structure according to claim 1, wherein, The height of the electrode rear end support (20) is the same as that of the electrode front end support.

3. The electronic glass kiln electrode brick support structure according to claim 1, wherein, The electrode front end support further comprises an electrode pad brick (12) arranged between the kiln pool bottom (13) and the adjusting pad layer (11).

4. The electronic glass kiln electrode brick support structure according to claim 3, wherein, The electrode rear end support (20) is provided with a plurality of support balls arranged along the length direction of the electrode rear end support (20).

5. The electronic glass kiln electrode brick support structure according to any one of claims 1-4, wherein, The adjusting pad layer (11) is a glass ingredient layer.

6. The electronic glass kiln electrode brick support structure according to claim 5, wherein, The thickness of the adjusting pad layer (11) is 5mm-7mm.

7. The electronic glass kiln electrode brick support structure of any of claims 1-4, wherein, The adjusting pad layer (11) is a glass sheet.

8. The electronic glass kiln electrode brick support structure according to claim 7, wherein, The thickness of the adjusting pad layer (11) is 8mm-10mm.

9. The glass melter electrode brick support structure of any of claims 1 to 4, wherein, The adjusting pad layer (11) comprises a glass ingredient layer and a glass sheet arranged above the glass ingredient layer.

10. The electronic glass kiln electrode brick support structure according to claim 9, wherein, The thickness of the glass ingredient layer is 2mm-3mm, and the thickness of the glass sheet is 4mm-5mm.

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