Structure for improving melting stability of glass substrate kiln

Abstract

The utility model discloses a structure for improving the melting stability of a glass substrate kiln, which comprises a plurality of mounting ports arranged on the bottom surface of a furnace hearth close to a feed port, molybdenum electrodes are arranged on the bottom surface of the furnace hearth in the mounting ports, and ceramic sleeves are sleeved on the outer side walls of the molybdenum electrodes in the mounting ports. The section, located outside the furnace hearth, of the molybdenum electrode is sleeved with a protective ceramic ring column, the protective ceramic ring column is fixedly connected with the furnace hearth, the bottom face of the ceramic sleeve is attached to the top face of the protective ceramic ring column so that the molybdenum electrode can be supported in the installation opening, and the top face of the protective ceramic ring column is attached to the bottom face of the furnace hearth. According to the structure, the molybdenum electrodes are arranged on the bottom face, close to the feeding opening, of the furnace hearth, the molybdenum electrodes can independently play a heating role, a material mountain formed at the feeding opening in the furnace hearth is successfully heated according to needs, the internal temperature of the furnace hearth is stable, the melting efficiency is greatly improved, the structural arrangement is simple and efficient, and the cost is low. And popularization and use are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of glass production, in particular to a structure for improving the melting stability of a glass substrate furnace. Background Technique

[0002] The glass substrate is an important basic material in electronic display devices, and the melting link in its production process has a significant impact on the quality of the final product.

[0003] Currently, in the melting link, generally, raw materials are poured into the furnace pool, and the raw materials are heated by paired tin electrodes on the furnace through the tin electrodes, and after being melted into glass liquid, they are taken out for the next operation.

[0004] However, after the raw materials are poured into the furnace inlet for a period of time, there will be completely melted glass liquid and newly poured raw materials in the furnace. With the further addition of raw materials, the resistance at the furnace inlet increases, and the current generated by the symmetrically arranged tin electrodes will run along the side wall of the furnace to the place where there is more glass liquid because the resistance is smaller, resulting in unstable temperature in the furnace. Further, the raw materials at the furnace inlet are not melted in time, thus piling up, resulting in a material mountain at this place, reducing the efficiency of the melting link. Therefore, a structure for improving the melting stability of a glass substrate furnace is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide a structure for improving the melting stability of a glass substrate furnace to solve the problem of low melting efficiency caused by unstable internal temperature of the existing furnace in the above-mentioned background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A structure for improving the melting stability of a glass substrate furnace is arranged on the furnace pool. A burner gun, a feed inlet, a discharge outlet and tin electrodes are also arranged on the furnace pool. The structure includes a plurality of installation openings opened at the bottom surface of the furnace pool near the feed inlet. A molybdenum electrode is arranged at the bottom surface of the furnace pool inside the installation openings. A ceramic sleeve is sleeved on the outer side wall of the molybdenum electrode inside the installation openings. A protective ceramic ring column is sleeved on the outer section of the molybdenum electrode outside the furnace pool. The protective ceramic ring column is fixedly connected with the furnace pool. The bottom surface of the ceramic sleeve is attached to the top surface of the protective ceramic ring column to support the molybdenum electrode in the installation openings. The top surface of the protective ceramic ring column is attached to the bottom surface of the furnace pool.

[0007] Preferably: A plurality of notches are opened on the outer side wall of the ceramic sleeve.

[0008] Preferably: The notches are opened equidistantly around the central axis of the ceramic sleeve.

[0009] Preferably, a ceramic ring block is sleeved on the top end of the protective ceramic ring column. Fixing ports are equidistantly arranged around the central axis of the ceramic ring block. The ceramic ring block is fixedly connected to the bottom surface of the furnace bath through screws passing through the fixing ports.

[0010] Preferably, the diameter of the molybdenum electrode is not greater than the inner diameter of the protective ceramic ring column.

[0011] Preferably, the molybdenum electrode is located between the first group of tin electrodes near the feed port of the furnace bath and the feed port.

[0012] Preferably, bottom support plates are fixedly connected to both ends of the bottom surface of the furnace bath for supporting the furnace bath.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. By arranging a plurality of molybdenum electrodes on the bottom surface of the furnace bath near the feed port, the molybdenum electrodes can play a heating role independently, and the heating of the material mountain formed at the feed port in the furnace bath as required is successfully realized, making the internal temperature of the furnace bath stable, greatly improving the melting efficiency, with a simple and efficient structure setting, suitable for popularization and use.

[0015] 2. Through the setting of the ceramic sleeve, the molybdenum electrode is supported in the installation port in cooperation with the protective ceramic ring column. Utilizing the heat insulation performance of the ceramic sleeve, the flowing-down glass liquid is gradually cooled and solidified, which not only makes the connection between the installation port and the ceramic sleeve more stable, but also blocks more glass liquid from flowing down, greatly improving the sealing performance of the installation of the molybdenum electrode on the bottom surface of the furnace bath, with a stable and durable structure.

[0016] 3. Through the setting of the notch, the contact area between the glass liquid flowing down from the gap between the installation port and the ceramic sleeve and the surface of the ceramic sleeve is larger, and it is easier to cool. The glass liquid cooled in the notch will hold the ceramic sleeve, further enhancing the stability of the ceramic sleeve in the installation port, thereby greatly improving the stability and durability of this structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the front view of the present utility model;

[0018] Figure 2 is the side view of the present utility model;

[0019] Figure 3 is Figure 1 the enlarged schematic view at A in

[0020] Figure 4 is the connection schematic view of the molybdenum electrode and the ceramic sleeve in the present utility model;

[0021] Figure 5 is the structural view of the protective ceramic ring column in the present utility model.

[0022] In the figure: 1. Furnace pool; 101. Burner gun; 102. Feed inlet; 103. Discharge outlet; 104. Tin electrode; 2. Bottom support plate; 3. Molybdenum electrode; 301. Ceramic sleeve; 302. Notch; 4. Protective ceramic ring column; 401. Ceramic ring block; 402. Fixed port; 403. Screw; 5. Installation port. Specific implementation manner

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Refer to Figures 1-5 As shown, the present invention provides a technical solution for a structure to improve the melting stability of a glass substrate kiln:

[0025] A structure for improving the melting stability of a glass substrate kiln is provided on the furnace pool 1. A burner gun 101, a feed inlet 102, a discharge outlet 103 and a tin electrode 104 are also provided on the furnace pool 1. Refer to Figure 1 As shown, it should be supplemented that the feed inlet 102 is located above the side wall of the furnace pool 1, and the discharge outlet 103 is located below the side wall of the furnace pool 1. This is the prior art and will not be elaborated here. This structure includes a plurality of installation ports 5 opened at the bottom surface of the furnace pool 1 near the feed inlet 102. In this embodiment, five installation ports 5 are provided. A molybdenum electrode 3 is provided at the bottom surface of the furnace pool 1 within the installation port 5. Refer to Figure 4 As shown, the molybdenum electrode 3 is cylindrical. A ceramic sleeve 301 is sleeved on the outer side wall of the molybdenum electrode 3 within the installation port 5. Among them, the ceramic sleeve 301 is made of ceramic and has the properties of high temperature resistance and heat insulation. A protective ceramic ring column 4 is sleeved on the outer section of the molybdenum electrode 3 outside the furnace pool 1. Among them, the protective ceramic ring column 4 is also made of ceramic. Utilizing its heat insulation property, the molybdenum electrode 3 outside the furnace pool 1 is not completely exposed, avoiding scalding the staff and improving the safety of this structure. The protective ceramic ring column 4 is fixedly connected to the furnace pool 1. The bottom surface of the ceramic sleeve 301 is attached to the top surface of the protective ceramic ring column 4 to support the molybdenum electrode 3 within the installation port 5. The top surface of the protective ceramic ring column 4 is attached to the bottom surface of the furnace pool 1.

[0026] When using this structure, several molybdenum electrodes 3 are arranged on the bottom surface of the furnace bath 1 near the feed inlet 102. By utilizing the fact that the molybdenum electrodes 3 can individually play a heating role, the heating of the material mountain formed at the feed inlet 102 in the furnace bath 1 as required is successfully achieved. This enables the raw materials continuously poured into the furnace bath 1 to be melted in a timely manner, thereby reducing the internal temperature difference in the furnace bath 1 and improving the temperature stability, greatly enhancing the melting efficiency. The structure is simple and efficient, and is suitable for popularization and use.

[0027] Due to the setting of the ceramic sleeve 301, in cooperation with the protective ceramic ring column 4, the molybdenum electrode 3 is supported in the installation opening 5. The molten glass in the furnace bath 1 will flow down along the gap between the installation opening 5 and the ceramic sleeve 301. Due to the heat insulation performance of the ceramic sleeve 301, the flowing-down molten glass gradually cools and solidifies, thereby adhering to and squeezing the inner wall of the installation opening 5 and the outer wall of the ceramic sleeve 301. This not only makes the connection between the installation opening 5 and the ceramic sleeve 301 more stable but also blocks more molten glass from flowing down, greatly improving the sealing performance of the installation of the molybdenum electrode 3 on the bottom surface of the furnace bath 1. The structure is stable and durable.

[0028] The top surface of the protective ceramic ring column 4 is in contact with the bottom surface of the furnace bath 1, further blocking the connection gap between the installation opening 5 and the ceramic sleeve 301, preventing the outflow of molten glass, and thus avoiding the loss of molten glass and environmental pollution.

[0029] Refer to Figure 3 As shown, in an alternative embodiment: A plurality of notches 302 are formed on the outer wall of the ceramic sleeve 301. The notches 302 are arranged at equal distances around the central axis of the ceramic sleeve 301. Through the setting of the notches 302, the contact area between the molten glass flowing down from the gap between the installation opening 5 and the ceramic sleeve 301 and the surface of the ceramic sleeve 301 is larger, making it easier to cool. The molten glass cooled in the notches 302 will hold the ceramic sleeve 301, further enhancing the stability of the ceramic sleeve 301 in the installation opening 5, thereby greatly improving the stability and durability of this structure.

[0030] Refer to Figure 5 As shown, in an alternative embodiment: A ceramic ring block 401 is sleeved on the top end of the protective ceramic ring column 4. A plurality of fixing holes 402 are formed around the central axis of the ceramic ring block 401. The ceramic ring block 401 is fixedly connected to the bottom surface of the furnace bath 1 by screws 403 passing through the fixing holes 402. The structure is simple and convenient for operation.

[0031] It should be supplemented that the diameter of the molybdenum electrode 3 is not greater than the inner diameter of the protective ceramic ring column 4. The molybdenum electrode 3 is located between the first group of tin electrodes 104 near the feed inlet 102 of the furnace bath 1 and the feed inlet 102 because the material mountain appears here in the prior art. Refer to Figure 1 and Figure 2As shown in the figure, both ends of the bottom surface of the furnace bath 1 are fixedly connected with bottom support plates 2, which are used to support the furnace bath 1 and at the same time provide an installation space for the molybdenum electrodes 3.

[0032] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A structure for improving the melting stability of a glass substrate furnace, which is arranged on a furnace pool (1), and the furnace pool (1) is also provided with a burner (101), a feed port (102), a discharge port (103) and a tin electrode (104), characterized in that: The invention comprises a plurality of mounting openings (5) provided on the bottom surface of a furnace pool (1) near a feed opening (102); a molybdenum electrode (3) is arranged in the mounting opening (5) on the bottom surface of the furnace pool (1); a ceramic sleeve (301) is sleeved on the outer wall of the molybdenum electrode (3) located in the mounting opening (5); a protective ceramic ring column (4) is sleeved on the outer section of the molybdenum electrode (3) located in the furnace pool (1); the protective ceramic ring column (4) is fixedly connected to the furnace pool (1); the bottom surface of the ceramic sleeve (301) is fitted with the top surface of the protective ceramic ring column (4) to support the molybdenum electrode (3) in the mounting opening (5); and the top surface of the protective ceramic ring column (4) is fitted with the bottom surface of the furnace pool (1).

2. The structure for improving the melting stability of a glass substrate furnace according to claim 1, characterized in that: The outer side wall of the ceramic sleeve (301) is provided with a plurality of notches (302).

3. The structure for improving the melting stability of a glass substrate furnace according to claim 2, characterized in that: The notches (302) are arranged at equal distances around the central axis of the ceramic sleeve (301).

4. The structure for improving the melting stability of a glass substrate furnace according to claim 1, characterized in that: A ceramic ring block (401) is sleeved on the top of the protective ceramic ring column (4), and fixing openings (402) are provided on the ceramic ring block (401) at equal distances around its central axis. The ceramic ring block (401) is fixedly connected to the bottom surface of the furnace pool (1) by screws (403) passing through the fixing openings (402).

5. The structure for improving the melting stability of a glass substrate furnace according to claim 1, characterized in that: The diameter of the molybdenum electrode (3) is no greater than the inner diameter of the protective ceramic ring column (4).

6. The structure for improving the melting stability of a glass substrate furnace according to claim 1, characterized in that: The molybdenum electrode (3) is located between the first group of tin electrodes (104) near the feed inlet (102) of the furnace pool (1) and the feed inlet (102).

7. The structure for improving the melting stability of a glass substrate furnace according to claim 1, characterized in that: Bottom support plates (2) are fixedly connected to both ends of the bottom surface of the furnace pool (1) and are used to support the furnace pool (1).

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