Air pipe assembly capable of prolonging service life of converter

Abstract

The utility model relates to the technical field of air pipes, and discloses an air pipe assembly capable of prolonging the service life of a converter, which comprises a tuyere tee joint, the top end of the tuyere tee joint is in threaded connection with a horizontal air pipe, one end of the tuyere tee joint is in threaded connection with a tuyere short pipe, and the top end of the tuyere tee joint is provided with a special asbestos rope. The size of the special asbestos rope is matched with that of the horizontal air pipe, and the inner surface and the outer surface of the horizontal air pipe are evenly coated with high-temperature-resistant and scouring-resistant coatings. Due to the high-temperature resistance of the special asbestos rope at the top end of the tuyere tee joint, the structure cannot be damaged and embrittled due to long-time high temperature, a better sealing effect is achieved, the phenomena of copper running and copper leakage are prevented, the situation that high-temperature melt makes contact with a furnace shell is effectively reduced, and the situation that the furnace body turns red and forcibly stops the furnace is avoided; due to the arrangement of the high-temperature-resistant and scouring-resistant coating, the high-temperature-resistant and scouring-resistant capabilities of the horizontal air pipe are also improved, and the service life of the air pipe under the scouring of melt and gas is effectively guaranteed; and the service life of the converter is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of air duct technology, and in particular to an air duct assembly that can improve the lifespan of a converter. Background Technology

[0002] Air ducts in a converter refer to the piping system used to transport air during the copper smelting process. These ducts are usually located on the lower middle side of the converter. Oxygen is mixed in the ducts to promote oxidation reactions and accelerate the copper smelting process. The material design and layout of all air ducts in a converter have a significant impact on copper smelting efficiency and converter lifespan.

[0003] In existing converters, tuyere boxes are installed on the tuyere ducts to facilitate the delivery of air into the converter. However, the connection between the tuyere box and the furnace body is subject to high temperatures and temperature fluctuations over a long period of time, and the molten metal inside the furnace erodes the connection. Therefore, the connection between the tuyere box and the furnace body is prone to rapid material erosion and consumption under the influence of prolonged high temperatures and drastic reaction changes, eventually leading to serious problems such as copper runoff, copper leakage, and the furnace body turning red. Utility Model Content

[0004] The technical problem to be solved by this utility model is that the tuyer box in the duct is prone to melting and erosion due to high temperature in the existing technology. Therefore, we propose a duct assembly that can improve the life of the converter.

[0005] To achieve the above objectives, this application adopts the following technical solution: a duct assembly that can improve the life of a converter, including a tuyere tee, the top end of which is connected to a horizontal duct by a thread, and one end of which is connected to a short tuyere pipe by a thread, and a flange is installed inside the short tuyere pipe.

[0006] Preferably, a special asbestos rope is installed at the top of the air vent tee, and the size of the special asbestos rope is adapted to the horizontal air duct.

[0007] Preferably, the bottom end of the air vent tee is connected to a silencer via a thread.

[0008] Preferably, the flange surface is fitted with an air vent hose.

[0009] Preferably, the inner and outer surfaces of the horizontal duct are uniformly coated with a high-temperature resistant and erosion-resistant coating.

[0010] Preferably, the main body material of the horizontal duct is high-strength wear-resistant steel.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] In this invention, the special asbestos rope at the top of the tuyeres not only effectively prevents copper leakage, but its high-temperature resistance also ensures a better seal, preventing structural damage and brittleness due to prolonged high temperatures, thus extending the service life of the horizontal duct. The high-temperature and erosion-resistant coating further enhances the horizontal duct's resistance to high temperatures and erosion, effectively guaranteeing its service life under the influence of molten metal and gas, and consequently increasing the converter's furnace life. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of the air duct of this utility model;

[0014] Figure 2 This is a side view of the air duct of this utility model;

[0015] Figure 3 This utility model Figure 1 A magnified view of a portion of point A in the middle.

[0016] Legend: 1. Air vent tee; 2. Horizontal air duct; 3. Air vent short pipe; 4. Flange; 5. Special asbestos rope; 6. Silencer; 7. Air vent flexible hose. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0018] Reference Figure 1 - Figure 3 As shown, this utility model provides a technical solution: a duct assembly that can improve the lifespan of a converter, including a tuyere tee 1, a horizontal duct 2 connected to the top of the tuyere tee 1 by a thread, a short tuyere pipe 3 connected to one end of the tuyere tee 1 by a thread, a flange 4 installed inside the short tuyere pipe 3, and a special asbestos rope 5 installed at the top of the tuyere tee 1. The size of the special asbestos rope 5 is adapted to the horizontal duct 2. The special asbestos rope 5 at the top of the tuyere tee 1 not only effectively prevents copper runoff and leakage, but also the high temperature resistance of the special asbestos rope 5 can better play a sealing role, preventing structural damage and brittleness due to prolonged high temperature, thereby improving the service life of the horizontal duct 2. The high temperature and erosion resistant coating also increases the high temperature and erosion resistance of the horizontal duct 2, effectively ensuring the service life of the duct under the erosion of molten metal and gas, and also increasing the lifespan of the converter.

[0019] Reference Figure 1As shown in this implementation scheme: the bottom end of the air outlet tee 1 is connected to a silencer 6 by a thread. By setting the silencer 6, the noise generated when the air flows in the horizontal air duct 2 can be reduced, ensuring a quiet working environment.

[0020] Reference Figure 2 As shown in this embodiment: the surface of the flange 4 is equipped with an air outlet hose 7. By setting the air outlet hose 7, the sealing of the connection and resistance to thermal expansion deformation, as well as the slight deformation of the horizontal air duct 2 itself, can be improved, thereby protecting the air duct system from damage and improving air tightness.

[0021] Reference Figure 1 As shown in this embodiment, the inner and outer surfaces of the horizontal air duct 2 are uniformly coated with a high-temperature resistant and erosion-resistant coating. The high-temperature resistant and erosion-resistant coating significantly increases the high-temperature resistance of the horizontal air duct 2, effectively ensuring its service life under the erosion of melt and gas, and also increasing the furnace life of the converter.

[0022] Reference Figure 1 As shown in this implementation plan: the main body material of the horizontal duct 2 is high-strength wear-resistant steel. By using this material, the horizontal duct 2 can maintain its shape during frequent operation, thereby further improving the service life of the horizontal duct 2.

[0023] Working Principle: The special asbestos rope 5 at the top of the tuyere tee 1 effectively prevents copper leakage and runoff. Furthermore, the high-temperature resistance of the asbestos rope 5 ensures a better seal, preventing structural damage and brittleness due to prolonged high temperatures, thus extending the service life of the horizontal duct 2. The high-temperature and erosion-resistant coating further enhances the high-temperature resistance of the horizontal duct 2, effectively guaranteeing its service life under the influence of molten metal and gas, and thus increasing the converter's lifespan. The silencer 6 reduces noise generated by air leakage in the horizontal duct 2, ensuring a quiet working environment. The flexible tuyere hose 7 improves the sealing of the connection and resists thermal expansion deformation and minor deformation of the horizontal duct 2 itself, protecting the duct system from damage. The high-temperature and erosion-resistant coating significantly increases the high-temperature resistance of the horizontal duct 2, effectively guaranteeing its service life under the influence of molten metal and gas, and thus increasing the converter's lifespan. This material also reduces the wear rate of the horizontal duct 2 during frequent operation, further extending its service life.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A duct assembly that can improve the service life of a converter, comprising a tuyere tee (1), characterized in that: The top of the air vent tee (1) is connected to a horizontal air duct (2) by a thread, and one end of the air vent tee (1) is connected to an air vent short pipe (3) by a thread. A flange (4) is installed inside the air vent short pipe (3). A special asbestos rope (5) is installed at the top of the air vent tee (1). The size of the special asbestos rope (5) is adapted to the horizontal air duct (2).

2. The duct assembly for improving converter lifespan according to claim 1, characterized in that: The bottom end of the air outlet tee (1) is connected to a silencer (6) via a thread.

3. A duct assembly for improving converter lifespan according to claim 1, characterized in that: The flange (4) is fitted with an air vent hose (7).

4. A duct assembly for improving converter lifespan according to claim 1, characterized in that: The inner and outer surfaces of the horizontal duct (2) are uniformly coated with a high-temperature resistant and erosion-resistant coating.

5. A duct assembly for improving converter lifespan according to claim 1, characterized in that: The main body material of the horizontal duct (2) is high-strength wear-resistant steel.

Images