A middle section connecting structure of a glass production heating rod

Abstract

The utility model discloses a kind of middle section connecting structure of glass production heating rod, including electric fluxing heating rod, electric fluxing heating rod is composed of L type heating rod and I type heating rod, I type heating rod is installed in L type heating rod one end below, L type heating rod and I type heating rod connecting place outside is equipped with protective cylinder cover, protective cylinder cover bottom is equipped with limit round plate, limit round plate is fixedly connected with I type heating rod, protective cylinder cover is made of zirconium oxide, protective cylinder cover one end inside is fixedly provided with annular limit block, annular limit block is clamped in I type heating rod top connecting place, L type heating rod other end is connected with power supply equipment, I type heating rod is inserted into glass melting furnace;The utility model has the advantages of improving heating rod anticorrosion effect, prolonging service life, reducing downtime maintenance frequency etc.

Description

Technical Field

[0001] This utility model belongs to the technical field of electric melting heating rods, and particularly relates to a mid-section connection structure of a glass production heating rod. Background Technology

[0002] In the electric melting system of glass melting furnace, the traditional heating rod connection structure is exposed to high temperature environment for a long time. Its metal protective sleeve is prone to chemical reaction with alkaline molten salt, resulting in an oxidation corrosion rate of up to 0.5 mm / month at the connection. The regular maintenance cycle is less than 3 months, which seriously restricts the continuous operation efficiency of the equipment.

[0003] During the melting process, glass melting furnaces generate corrosive sodium-containing alkaline vapors and sulfide vapors at high temperatures. This reduces the corrosion resistance of traditional heating rods by more than 30%, leading to increased surface roughness. The most vulnerable connection ends are particularly vulnerable, and their service life is greatly shortened under harsh environments, ultimately forcing the heating rods to fail prematurely. Utility Model Content

[0004] The purpose of this invention is to provide a mid-section connection structure for glass production heating rods to solve the problems of common electric melting heating rods, such as lack of corrosion protection kits, short service life, and short maintenance cycle.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: it includes an electric melting heating rod, which includes an L-shaped heating rod and an I-shaped heating rod. The I-shaped heating rod is installed below one end of the L-shaped heating rod. A protective sleeve is provided on the outside of the connection between the L-shaped heating rod and the I-shaped heating rod. A limiting circular plate is provided at the bottom of the protective sleeve. The limiting circular plate is fixedly connected to the I-shaped heating rod.

[0006] Furthermore, the protective casing is made of zirconium oxide.

[0007] Furthermore, an annular limiting block is fixedly provided on the inner side of one end of the protective cover, and the annular limiting block is locked at the top connection of the type I heating rod.

[0008] Furthermore, the other end of the L-shaped heating rod is connected to a power supply device.

[0009] Furthermore, the type I heating rod is inserted into the glass melting furnace.

[0010] Beneficial effects: This utility model is reasonably designed and has the following beneficial effects:

[0011] In this invention, the connection between the L-shaped and I-shaped heating rods is wrapped with a zirconia protective sleeve. By utilizing the high melting point, low thermal conductivity, and alkali corrosion resistance of zirconia, the erosion of high-temperature alkaline vapors and sulfides in the melting furnace is effectively blocked. At the same time, the direct thermal shock of thermal radiation to the connection is reduced, significantly reducing material oxidation loss and the risk of thermal stress cracking. This extends the service life of the connection structure to 2-3 times that of ordinary unprotected heating rods, and reduces the frequency of unplanned downtime due to corrosion. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a cross-sectional view of the protective cover structure of this utility model.

[0014] In the diagram: 1 - L-type heating rod, 2 - I-type heating rod, 3 - protective sleeve;

[0015] 21-Limiting circular plate, 31-Annular limiting block. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] Combination Figures 1 to 2 The middle section connection structure of a glass production heating rod shown includes an electric melting heating rod, which includes an L-shaped heating rod 1 and an I-shaped heating rod 2. The I-shaped heating rod 2 is installed below one end of the L-shaped heating rod 1. A protective sleeve 3 is provided on the outside of the connection between the L-shaped heating rod 1 and the I-shaped heating rod 2. A limiting circular plate 21 is provided at the bottom of the protective sleeve 3. The limiting circular plate 21 is fixedly connected to the I-shaped heating rod 2.

[0018] The protective casing 3 is made of zirconium oxide.

[0019] An annular limiting block 31 is fixedly provided on the inner side of one end of the protective cover 3, and the annular limiting block 31 is locked at the top connection of the type I heating rod 2.

[0020] The other end of the L-shaped heating rod 1 is connected to the power supply equipment.

[0021] Type I heating rod 2 is inserted into the glass melting furnace.

[0022] Working principle: In use, the L-shaped heating rod 1 is responsible for transmitting current from the power supply equipment to the I-shaped heating rod in the working section. Its bending design is used to adapt to the spatial layout of the furnace edge. The I-shaped heating rod 2 is directly inserted into the glass melting furnace to undertake the electric melting heating function. The protective cover 3 protects the connection from environmental corrosion. The limiting circular plate 21 and the annular limiting block 31 limit mechanical displacement, enhance connection stability, and prevent the protective cover from sliding relative to the heating rod. The protective cover 3 is made of zirconium oxide material. With the help of zirconium oxide's high melting point, low thermal conductivity, and alkali corrosion resistance, it blocks the direct corrosion of the connection by high-temperature alkaline gases and sulfides in the melting furnace, thereby extending the equipment maintenance cycle.

[0023] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0024] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A mid-section connection structure for a glass production heating rod, comprising an electric melting heating rod, the electric melting heating rod comprising an L-shaped heating rod (1) and an I-shaped heating rod (2), the I-shaped heating rod (2) being installed below one end of the L-shaped heating rod (1), characterized in that: A protective sleeve (3) is provided on the outside of the connection between the L-shaped heating rod (1) and the I-shaped heating rod (2). A limiting circular plate (21) is provided at the bottom of the protective sleeve (3). The limiting circular plate (21) is fixedly connected to the I-shaped heating rod (2).

2. The middle section connection structure of a glass production heating rod according to claim 1, characterized in that: The protective cover (3) is made of zirconium oxide.

3. The middle section connection structure of a glass production heating rod according to claim 1, characterized in that: An annular limiting block (31) is fixedly provided on the inner side of one end of the protective cover (3), and the annular limiting block (31) is locked at the top connection of the type I heating rod (2).

4. The middle section connection structure of a glass production heating rod according to claim 1, characterized in that: The other end of the L-shaped heating rod (1) is connected to the power supply equipment.

5. The middle section connection structure of a glass production heating rod according to claim 1, characterized in that: The type I heating rod (2) is inserted into the glass melting furnace.

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