Structure for prolonging service life of charging pipe of titanium slag electric furnace

Abstract

The utility model relates to the technical field of pipeline protection, in particular to a structure for prolonging the service life of a charging pipe of a titanium slag electric furnace, which is applied to a charging assembly, the charging assembly comprises a charging pipe, a jacket type wear-resistant backpack is arranged on the outer side of an easy-to-wear part of the charging pipe, and the wear-resistant backpack is fixedly connected with the charging pipe through a jacket clamping hole. The wear-resistant backpack is formed by compounding a wear-resistant steel plate and corundum castable poured on the inner side of the wear-resistant steel plate, and a'backpack 'is additionally arranged at an easily-worn part; the service life of the added material pipe is prolonged from 2-3 months to 6-8 months, the material leakage phenomenon is reduced, safe, stable and continuous production of a titanium slag electric furnace is guaranteed, and under the condition that the material granularity is not changed, the erosion angle is reduced by adjusting the actual erosion angle when the corundum castable is poured, so that the abrasion of the material to the corundum castable is reduced, and the service life of the corundum castable is prolonged. And the service life of the charging pipe is greatly prolonged.

Description

Technical Field

[0001] This utility model relates to the field of pipeline protection technology, specifically to a structure for improving the service life of the feeding pipe of a titanium slag electric furnace. Background Technology

[0002] Currently, most large-scale enclosed titanium slag electric arc furnaces primarily use wear-resistant material pipes to feed powder into the furnace for smelting. During production, the high hardness of the titanium concentrate and metallurgical coke used in production causes significant wear on the pipes during feeding. Furthermore, the design of the feeding pipes is constrained by space limitations, making vertical installation impossible. Increased contact area between the pipe bends and the material makes these bends more prone to wear and leakage. Leakage firstly reduces the actual material fed into the furnace, resulting in a higher material-to-electricity ratio during production, thus affecting the maintenance of the furnace walls and the control of the system temperature. Secondly, leakage reduces the insulation of the entire furnace cover and electrode system, leading to production accidents such as sparking. In addition, leakage necessitates power outages for repairs, reducing production time and thus lowering output.

[0003] Therefore, there is an urgent need for a structure that can improve the service life of the feed pipe of titanium slag electric furnace to overcome the shortcomings of the existing technology. Summary of the Invention

[0004] The purpose of this invention is to provide a structure that improves the service life of the feed pipe of a titanium slag electric furnace, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides a structure for improving the service life of the charging pipe of a titanium slag electric furnace, which is applied to the charging assembly. The charging assembly includes a charging pipe, and a jacketed wear-resistant backpack is provided on the outer side of the easily worn part of the charging pipe. The wear-resistant backpack is fixedly connected to the charging pipe through a clamping hole. The wear-resistant backpack is composed of a wear-resistant steel plate and corundum castable castable on the inner side.

[0006] As a further improvement to this technical solution, the erosion angle of the corundum castable is designed to be smaller than the material impact angle in order to reduce the erosion wear rate.

[0007] As a further improvement to this technical solution, the sleeve hole and the feeding pipe are fastened together by clamps, and the clamps are distributed along the circumference of the feeding pipe.

[0008] As a further improvement to this technical solution, in the composite structure of the wear-resistant steel plate and the corundum castable, the thickness of the corundum castable is 1.5-3 times the thickness of the wear-resistant steel plate.

[0009] As a further improvement to this technical solution, the wear-resistant backpack is provided with fixing bolts, and the clamp is fixedly connected to the wear-resistant backpack through the fixing bolts.

[0010] As a further improvement to this technical solution, the particle size of the corundum castable is 1-3mm, and its casting density is not less than 3.0g / cm³.

[0011] As a further improvement to this technical solution, the jacketed wear-resistant backpack covers the bent section of the feeding pipe and the area where material impact is concentrated, and a water-cooled nozzle is fixedly connected to the lower end of the feeding pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This structure, designed to improve the service life of the titanium slag electric furnace charging pipe, incorporates "backpacks" at easily worn parts. After installation, the pipe's service life is extended from 2-3 months to 6-8 months, reducing material leakage and ensuring safe, stable, and continuous production of the titanium slag electric furnace. Furthermore, by adjusting the actual erosion angle during corundum casting while maintaining the same material particle size, the erosion angle is reduced, thereby decreasing the wear of the corundum castable by the material and significantly extending the service life of the charging pipe. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the embodiment;

[0015] Figure 2 This is a schematic diagram of the outer shell structure of an embodiment.

[0016] The meanings of the labels in the diagram are as follows:

[0017] 1. Feeding assembly; 10. Feeding pipe; 11. Water-cooled nozzle;

[0018] 2. Wear-resistant backpack; 20. Wear-resistant steel plate; 21. Corundum castable; 22. Clip hole; 23. Clamp; 24. Fixing bolt. Detailed Implementation

[0019] 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 embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-2As shown, this embodiment provides a structure to improve the service life of the titanium slag electric furnace charging pipe, which is applied to the charging assembly 1. The charging assembly 1 includes a charging pipe 10. The easily worn parts of the charging pipe 10 are provided with a jacketed wear-resistant backpack 2. The wear-resistant backpack 2 is fixedly connected to the charging pipe 10 through the clamping hole 22. The wear-resistant backpack 2 is composed of a wear-resistant steel plate 20 and corundum castable 21 cast on the inner side.

[0021] The working principle is as follows: Firstly, during the charging process of the titanium slag electric furnace, the material flows within the charging pipe 10, and easily worn parts are subjected to erosion and wear. The jacketed wear-resistant backpack 2, located on the outside of these easily worn parts of the charging pipe 10, plays a crucial role. It is composed of a wear-resistant steel plate 20 and corundum castable 21 cast on the inner side. The wear-resistant steel plate 20 provides initial wear protection, while the corundum castable 21, with its excellent properties such as high temperature resistance, high hardness, and good wear resistance, further resists the wear of the material. The wear-resistant backpack 2 is fixedly connected to the charging pipe 10 through the clamping hole 22, stably positioned in the easily worn parts, thereby reducing direct wear of the charging pipe 10 itself and improving the service life of the titanium slag electric furnace charging pipe 10.

[0022] To secure the backpack to the feeding pipe and reduce wear on the feeding pipe 10, in this embodiment, the clamping hole 22 is fastened to the feeding pipe 10 using clamps 23. The clamps 23 are distributed circumferentially around the feeding pipe 10. The wear-resistant backpack 2 is equipped with fixing bolts 24, and the clamps 23 are fixedly connected to the wear-resistant backpack 2 via these fixing bolts 24. This combination of clamps 23 and fixing bolts 24, with the clamps 23 evenly applying pressure to the feeding pipe 10, ensures the wear-resistant backpack 2 fits tightly against the easily worn parts of the feeding pipe 10. Simultaneously, the wear-resistant backpack 2 is equipped with fixing bolts 24, and the clamps 23 are fixedly connected to the wear-resistant backpack 2 via these fixing bolts 24. The fixing bolt 24 provides strong connection force, ensuring that the clamp 23 will not loosen during long-term use, thereby ensuring the relative position stability between the wear-resistant backpack 2 and the feeding tube 10.

[0023] To extend the service life of the pipeline, in this embodiment, the composite structure of wear-resistant steel plate 20 and corundum castable 21 has a thickness of 1.5-3 times that of wear-resistant steel plate 20. Wear-resistant steel plate 20 itself has a certain degree of wear resistance, providing initial protection against external impacts and friction. Corundum castable 21, with its excellent properties such as high temperature resistance, high hardness, and good wear resistance, serves as the main wear-resistant protective layer.

[0024] To reduce the erosion angle and thus decrease the wear of the corundum castable 21 by the material, thereby significantly extending the service life of the feeding pipe, the erosion angle of the corundum castable 21 in this embodiment is designed to be smaller than the material impact angle to reduce the erosion wear rate. The particle size of the corundum castable 21 is 1-3mm, and its casting density is not less than 3.0g / cm³. The jacketed wear-resistant backpack 2 covers the bent section of the feeding pipe 10 and the area where material impact is concentrated. A water-cooled nozzle 11 is fixedly connected to the lower end of the feeding pipe 10. The appropriate particle size and high casting density enable the corundum castable 21 to form a dense structure, improving its resistance to material impact. The jacketed wear-resistant backpack 2 covers the bent section of the feeding pipe 10 and the area where material impact is concentrated. These areas are the parts of the feeding pipe 10 most susceptible to material impact and wear, and the coverage of the wear-resistant backpack 2 can specifically protect these areas. In addition, a water-cooled nozzle 11 is fixedly connected to the lower end of the feeding pipe 10. The water-cooled nozzle 11 can reduce the temperature at the lower end of the feeding pipe 10, reduce the damage of high temperature to the feeding pipe 10 and the wear-resistant backpack 2, and further improve the service life of the entire device.

[0025] In this embodiment, a structure for improving the service life of the titanium slag electric furnace charging pipe is used. During the charging process, the material flows within the charging pipe 10, and easily worn parts are subjected to erosion and wear. The jacketed wear-resistant backpack 2, located on the outside of these easily worn parts of the charging pipe 10, plays a crucial role. It employs a combination of clamps 23 and fixing bolts 24. The clamping hole 22 is securely connected to the charging pipe 10 via clamps 23, which are distributed circumferentially along the charging pipe 10. This allows the clamps 23 to apply pressure evenly to the charging pipe 10, tightly fitting the wear-resistant backpack 2 to the easily worn parts of the charging pipe 10. Simultaneously, the wear-resistant backpack 2 is equipped with fixing bolts 24, through which the clamps 23 are fixedly connected to the wear-resistant backpack 2. The fixing bolts 24 provide strong connecting force, ensuring that the clamps 23 will not loosen during long-term use, thereby guaranteeing the relative positional stability between the wear-resistant backpack 2 and the charging pipe 10.

[0026] It is composed of a wear-resistant steel plate 20 and an inner corundum castable 21. The wear-resistant steel plate 20 provides initial wear protection, while the corundum castable 21, with its excellent properties such as high temperature resistance, high hardness, and good wear resistance, further resists material wear. This improves its ability to resist material impact. The jacketed wear-resistant backpack 2 covers the bending section of the feeding pipe 10 and the area where material impact is concentrated, providing targeted protection for these areas. In addition, a water-cooled nozzle 11 is fixedly connected to the lower end of the feeding pipe 10. The water-cooled nozzle 11 can reduce the temperature at the lower end of the feeding pipe 10, reducing high-temperature damage to the feeding pipe 10 and the wear-resistant backpack 2, further improving the service life of the entire device. The wear-resistant backpack 2 is fixedly connected to the feeding pipe 10 through the clamping hole 22, stably positioned in the easily worn part, thereby reducing direct wear of the feeding pipe 10 itself by the material, and thus improving the service life of the titanium slag electric furnace feeding pipe 10.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A structure for improving the service life of the charging pipe of a titanium slag electric furnace, applied to the charging assembly (1), characterized in that: The feeding assembly (1) includes a feeding pipe (10). The outer side of the easily worn part of the feeding pipe (10) is provided with a jacketed wear-resistant backpack (2). The wear-resistant backpack (2) is fixedly connected to the feeding pipe (10) through a sleeve hole (22). The wear-resistant backpack (2) is composed of a wear-resistant steel plate (20) and corundum castable (21) cast on the inner side.

2. The structure for improving the service life of the titanium slag electric furnace charging pipe according to claim 1, characterized in that: The erosion angle of the corundum castable (21) is designed to be smaller than the material impact angle in order to reduce the erosion wear rate.

3. The structure for improving the service life of the titanium slag electric furnace charging pipe according to claim 1, characterized in that: The sleeve hole (22) and the feeding pipe (10) are fastened together by a clamp (23), which is distributed around the feeding pipe (10).

4. The structure for improving the service life of the titanium slag electric furnace charging pipe according to claim 1, characterized in that: In the composite structure of the wear-resistant steel plate (20) and the corundum castable (21), the thickness of the corundum castable (21) is 1.5-3 times the thickness of the wear-resistant steel plate (20).

5. The structure for improving the service life of the titanium slag electric furnace charging pipe according to claim 3, characterized in that: The wear-resistant backpack (2) is provided with fixing bolts (24), and the clamp (23) is fixedly connected to the wear-resistant backpack (2) through the fixing bolts (24).

6. The structure for improving the service life of the titanium slag electric furnace charging pipe according to claim 1, characterized in that: The corundum castable (21) has a particle size of 1-3 mm and a casting density of not less than 3.0 g / cm³.

7. The structure for improving the service life of the titanium slag electric furnace charging pipe according to claim 1, characterized in that: The jacketed wear-resistant backpack (2) covers the bent section of the feeding pipe (10) and the area where the material impact is concentrated. The lower end of the feeding pipe (10) is fixedly connected to a water-cooled nozzle (11).

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