Corrosion-resistant mullite brick for dry quenching coke oven

Abstract

The utility model discloses a kind of dry quenching coke oven corrosion-resistant mullite bricks, including the brick body made of mullite material, the both sides of the brick body are provided with anticorrosive coating;The inside of the brick body is provided with reinforcing member, the reinforcing member includes four transverse reinforcing bars arranged in rectangular array mode, between the two transverse reinforcing bars in upper portion and between the two transverse reinforcing bars in lower portion respectively evenly spaced fixedly connected with multiple longitudinal reinforcing bars.The utility model is coated with anticorrosive coating in the both sides of the brick body made of mullite material, mullite brick can withstand high temperature under the premise, while with good anticorrosive property, to avoid mullite brick body to be chemically eroded.In addition, the embodiment can effectively improve the structural strength of mullite brick by setting reinforcing member in the inside of the brick body, effectively avoid the fracture of the brick body.

Description

Technical Field

[0001] This utility model relates to the field of mullite brick technology, and in particular to a corrosion-resistant mullite brick for dry quenching coke ovens. Background Technology

[0002] Dry quenching technology, as an important process for energy conservation and emission reduction in the coking industry, places extremely high demands on the performance of refractory materials under harsh environments of high temperature, corrosive media, and frequent thermal shock. Mullite bricks are used in the lining of dry quenching coke ovens due to their excellent high stability and thermal shock resistance. However, ordinary mullite phases react with potassium oxide, sodium oxide, etc. in a long-term alkaline atmosphere to form low-melting-point substances, resulting in insufficient corrosion resistance. This has led to chemical erosion, structural spalling, and high-temperature creep, significantly reducing the furnace life. Moreover, the existing mullite bricks have low structural strength and are at risk of breakage after long-term use. Therefore, a corrosion-resistant mullite brick for dry quenching coke ovens needs to be developed. Utility Model Content

[0003] The purpose of this invention is to provide a corrosion-resistant mullite brick for dry quenching coke ovens, thereby solving the technical problems mentioned in the background section.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] This utility model discloses a corrosion-resistant mullite brick for dry quenching coke ovens, comprising a brick body made of mullite material, with anti-corrosion coatings on both sides of the brick body; and a reinforcing member provided inside the brick body, the reinforcing member comprising four transverse reinforcing ribs arranged in a rectangular array, and multiple longitudinal reinforcing ribs fixedly connected at even intervals between the two upper transverse reinforcing ribs and between the two lower transverse reinforcing ribs.

[0006] Furthermore, the anti-corrosion coating is specifically an organosilicon high-temperature resistant paint.

[0007] Furthermore, the reinforcing member also includes a central reinforcing rib disposed in the middle of the brick body, the central reinforcing rib being arranged parallel to each of the transverse reinforcing ribs.

[0008] Furthermore, the central reinforcing rib is symmetrically provided with two oblique support ribs at the corresponding positions of each longitudinal reinforcing rib. One end of each oblique support rib is fixedly connected to the central reinforcing rib, and the other end is fixedly connected to the transverse reinforcing rib on the corresponding side.

[0009] Furthermore, a first built-in seat and a second built-in seat are fixedly provided at both ends of the central reinforcing rib. The end of the first built-in seat away from the central reinforcing rib is flush with the outer end face of the brick body and has two symmetrically provided mating holes. The end of the second built-in seat away from the central reinforcing rib has two symmetrically provided mating rods that extend to the outside of the brick body and are respectively adapted to the two mating holes.

[0010] Furthermore, the end of the docking rod located outside the brick body has a pointed conical structure.

[0011] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0012] This invention involves coating both sides of a mullite brick with an anti-corrosion coating. This allows the mullite brick to withstand high temperatures while also possessing excellent corrosion resistance, thus preventing chemical erosion. Furthermore, this embodiment effectively improves the structural strength of the mullite brick by incorporating reinforcing components within the brick, effectively preventing brick breakage. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings.

[0014] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0015] Figure 2 This is a cross-sectional schematic diagram of the present invention;

[0016] Figure 3 This is a schematic diagram of the reinforcing component of this utility model;

[0017] Explanation of reference numerals in the attached drawings: 1. Brick body; 2. Anti-corrosion coating; 3. Transverse reinforcing rib; 4. Longitudinal reinforcing rib; 5. Middle reinforcing rib; 6. Diagonal support rib; 7. First internal seat; 8. Second internal seat; 9. Connecting hole; 10. Connecting rod. Detailed Implementation

[0018] like Figures 1-3 As shown, a corrosion-resistant mullite brick for dry quenching coke ovens includes a brick body 1 made of mullite material, with anti-corrosion coatings 2 applied to both sides of the brick body 1. In this embodiment, the anti-corrosion coating 2 is specifically an organosilicon high-temperature resistant paint. This organosilicon high-temperature resistant paint can withstand temperatures up to 1200℃ and also has good anti-corrosion properties, providing excellent protection for the mullite brick body and preventing it from being chemically eroded.

[0019] The brick body 1 is provided with a reinforcing member inside. Specifically, the reinforcing member includes four transverse reinforcing ribs 3 arranged in a rectangular array. Multiple longitudinal reinforcing ribs 4 are fixedly connected and uniformly spaced between the two transverse reinforcing ribs 3 at the top and between the two transverse reinforcing ribs 3 at the bottom. The two ends of each longitudinal reinforcing rib 4 are fixedly connected to the corresponding transverse reinforcing rib 3 by welding.

[0020] In this example, the reinforcing member further includes a central reinforcing rib 5 disposed in the middle of the brick body 1, the central reinforcing rib 5 being arranged parallel to each of the transverse reinforcing ribs 3. Additionally, the central reinforcing rib 5 has two diagonal support ribs 6 symmetrically fixedly disposed at positions corresponding to each of the longitudinal reinforcing ribs 4. One end of each diagonal support rib 6 is fixedly connected to the central reinforcing rib 5 by welding, and the other end is fixedly connected to the corresponding transverse reinforcing rib 3.

[0021] This embodiment effectively improves the structural strength of mullite bricks by incorporating reinforcing components within the brick body. Specifically, it follows... Figure 3 The method shown involves welding the various reinforcing ribs into a single reinforcing component before casting the mullite brick body. The horizontal and central reinforcing ribs effectively prevent brick breakage. The diagonal support ribs on the central reinforcing ribs form a stable triangular support structure with the longitudinal reinforcing ribs, further ensuring the structural stability of the mullite brick.

[0022] As a further improvement to this utility model, a first built-in seat 7 and a second built-in seat 8 are respectively fixedly provided at both ends of the central reinforcing rib 5. The end of the first built-in seat 7 away from the central reinforcing rib 5 is flush with the outer end face of the brick body 1 and has two symmetrically provided mating holes 9. The end of the second built-in seat 8 away from the central reinforcing rib 5 is symmetrically provided with two mating rods 10 extending to the outside of the brick body 1 and respectively adapted to the two mating holes 9. The end of the mating rod 10 located outside the brick body 1 has a pointed conical structure. When the mullite bricks are laid inside the dry quenching coke oven, the mating rods and mating holes on each of the two adjacent mullite bricks are sequentially inserted and matched, thereby realizing convenient positioning and splicing.

[0023] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A corrosion-resistant mullite brick for dry quenching coke ovens, characterized in that: The invention includes a brick body made of mullite material, with anti-corrosion coatings on both sides of the brick body; the brick body has a reinforcing member inside, the reinforcing member including four transverse reinforcing ribs arranged in a rectangular array, and multiple longitudinal reinforcing ribs are fixedly connected at even intervals between the two upper transverse reinforcing ribs and between the two lower transverse reinforcing ribs.

2. The corrosion-resistant mullite brick for dry quenching coke ovens according to claim 1, characterized in that: The anti-corrosion coating is specifically an organosilicon high-temperature resistant paint.

3. The corrosion-resistant mullite brick for dry quenching coke ovens according to claim 1, characterized in that: The reinforcing member further includes a central reinforcing rib disposed in the middle of the brick body, the central reinforcing rib being arranged parallel to each of the transverse reinforcing ribs.

4. The corrosion-resistant mullite brick for dry quenching coke ovens according to claim 3, characterized in that: The central reinforcing rib has two oblique support ribs fixedly fixedly arranged symmetrically at the positions corresponding to each of the longitudinal reinforcing ribs. One end of each oblique support rib is fixedly connected to the central reinforcing rib, and the other end is fixedly connected to the transverse reinforcing rib on the corresponding side.

5. The corrosion-resistant mullite brick for dry quenching coke ovens according to claim 3, characterized in that: The two ends of the central reinforcing rib are respectively fixedly provided with a first internal seat and a second internal seat. The end of the first internal seat away from the central reinforcing rib is flush with the outer end face of the brick and has two symmetrically provided mating holes. The end of the second internal seat away from the central reinforcing rib is symmetrically provided with two mating rods that extend to the outside of the brick and are respectively adapted to the two mating holes.

6. The corrosion-resistant mullite brick for dry quenching coke ovens according to claim 5, characterized in that: The end of the connecting rod located outside the brick body has a pointed conical structure.

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