A mechanism for installing and adjusting a lance nozzle

Abstract

The utility model belongs to converter steelmaking technical field, specifically disclose a kind of oxygen lance nozzle mounting adjustment mechanism, for solving the placement seat height of the placement lance body and nozzle is relatively fixed, this leads to when carrying out the operation of welding installation, it is difficult to be in same central axis, the inconsistency of this central axis, can greatly affect the precision of welding;Specifically including workbench, the lower end of workbench is provided with support leg, the upper end of workbench is provided with support column, one side can adjust the height of placement seat by hydraulic rod, connecting column, placement seat, slider and the like component, further can make lance body and nozzle be in same central axis, also can improve the precision of welding, on the other hand, lance body and nozzle can be effectively limited by mounting block, connecting band, slide bar, spring, limit rod and the like component again, avoid sliding and the like problem when welding, also can improve the stability of welding.

Description

Technical Field

[0001] This utility model relates to the field of converter steelmaking technology, and in particular to an oxygen lance nozzle installation and adjustment mechanism. Background Technology

[0002] Converter steelmaking is one of the core processes in modern steel production. It uses molten iron and scrap steel as raw materials, which are then charged into the converter. High-pressure oxygen is blown into the furnace through an oxygen lance. The oxygen lance nozzle is a key component; its special structural design allows oxygen to be ejected in a high-speed jet, precisely impacting the molten iron, strengthening the stirring of the molten pool, accelerating the oxidation reaction of elements such as carbon and silicon, and removing impurities. The lance body is responsible for transporting oxygen and also has a cooling function to prevent damage from high temperatures. During the blowing process, precise control of the oxygen flow rate and blowing time allows for precise regulation of the steel composition and temperature, ultimately producing qualified molten steel, providing high-quality raw materials for subsequent continuous casting, rolling, and other processes.

[0003] In existing technologies, because the height of the mounting base for the gun body and the nozzle is relatively fixed, it is difficult for the two to be on the same central axis during welding and installation. This inconsistency in the central axis will greatly affect the accuracy of welding.

[0004] To address the aforementioned technical deficiencies, a solution is proposed that allows for adjustment of the height of the mounting base, thereby aligning the gun body and the nozzle with the same central axis and improving welding precision. Utility Model Content

[0005] The purpose of this invention is to provide an oxygen lance nozzle installation and adjustment mechanism to solve the aforementioned problems.

[0006] The objective of this utility model can be achieved through the following technical solution: an oxygen lance nozzle installation and adjustment mechanism, comprising a workbench, a support leg at the lower end of the workbench, a support column at the upper end of the workbench, a hydraulic rod inside the support column, a connecting column fixedly connected to the upper end of the hydraulic rod, sliders fixedly connected to both sides of the connecting column, ball bearings inside the sliders, grooves formed on both sides inside the support column, a placement seat fixedly connected to the upper end of the connecting column, a lance body inside the placement seat, a lifting ring at the upper end of the lance body, and a nozzle body on the right side of the lance body.

[0007] Preferably, a connecting strap is fixedly connected to the upper edge of the placement base, and a mounting block is fixedly connected to the other end of the connecting strap. A limit hole is opened inside the mounting block, and a connecting block is fixedly connected to the front side of the placement base.

[0008] Preferably, a movable block is provided inside the connecting block, a limit rod is fixedly connected to one side of the movable block, a slide rod is fixedly connected to the other side of the movable block, a telescopic rod is provided on the front side of the movable block near the slide rod, and a spring is sleeved on the outside of the telescopic rod.

[0009] Preferably, the slider slides inside the groove via a connecting column and a hydraulic rod.

[0010] Preferably, the limiting rod is adapted to the limiting hole inside the mounting block.

[0011] Preferably, the movable block slides inside the connecting block via a slide bar, a telescopic rod, and a spring.

[0012] The beneficial effects of this utility model are:

[0013] (1) By opening the hydraulic rod, multiple sets of hydraulic rods start to run synchronously. Under their action, the connecting column drives the placement seat to move upward together, thereby raising the inner gun body. At this time, the gun body and the nozzle are on the same axis, and welding installation can be carried out. Similarly, the placement seat where the nozzle is located is equipped with corresponding hydraulic rods and other components, and the height of the nozzle can also be adjusted through them to make the nozzle and the gun body cooperate. In addition, the setting of the ball inside the slider can improve the smoothness of the connecting column and the placement seat during the lifting process. The height of the placement seat can be adjusted through the hydraulic rod, connecting column, placement seat, slider and other components, so that the gun body and the nozzle are on the same central axis, and the welding accuracy can also be improved.

[0014] (2) By pulling the slide bar, the slide bar drives the moving block to move to one side. During this process, the limiting rod moves synchronously with it. At this time, the mounting block is slid into the mounting groove inside the placement seat. After it reaches the preset position, the spring rebounds by its own elastic potential energy and makes the limiting rod lock into the limiting hole, thereby limiting the mounting block. The connecting strip will be close to the outside of the gun body to achieve auxiliary limiting. Similarly, by pulling the slide bar again, the limiting of the mounting block can be released, thereby removing the gun body from the placement seat. The mounting block, connecting strip, slide bar, spring, limiting rod and other components can effectively limit the gun body and nozzle, avoiding problems such as slippage during welding, and also improving the stability of welding. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings;

[0016] Figure 1 This is a three-dimensional structural view of the entire utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the support column of this utility model;

[0018] Figure 3This is a schematic diagram of the connecting column structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the placement base structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the connecting belt structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the internal structure of the connecting block of this utility model.

[0022] Legend: 1. Workbench; 2. Support leg; 3. Support column; 4. Hydraulic rod; 5. Connecting column; 6. Slider; 7. Ball bearing; 8. Slide groove; 9. Placement seat; 10. Gun body; 11. Lifting ring; 12. Nozzle body; 13. Connecting belt; 14. Mounting block; 15. Limiting hole; 16. Connecting block; 17. Moving block; 18. Limiting rod; 19. Slide rod; 20. Telescopic rod; 21. Spring. Detailed Implementation

[0023] 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.

[0024] Example 1: The application background of this utility model is based on the fact that the height of the gun body 10 and the nozzle mounting seat 9 is relatively fixed, which makes it difficult for the two to be on the same central axis during welding and installation. This inconsistency of the central axis will greatly affect the welding accuracy. The technical solution of this utility model is to solve the problem of how to adjust the height of the mounting seat 9 so that the gun body 10 and the nozzle are on the same central axis, and at the same time improve the welding accuracy.

[0025] Please see Figure 1 - Figure 6As shown, this embodiment is an oxygen lance nozzle installation and adjustment mechanism, including a workbench 1, a support leg 2 at the lower end of the workbench 1, a support column 3 at the upper end of the workbench 1, a hydraulic rod 4 inside the support column 3, a connecting column 5 fixedly connected to the upper end of the hydraulic rod 4, sliders 6 fixedly connected to both sides of the connecting column 5, ball bearings 7 inside the sliders 6, grooves 8 on both sides inside the support column 3, a placement seat 9 fixedly connected to the upper end of the connecting column 5, a lance body 10 inside the placement seat 9, a lifting ring 11 at the upper end of the lance body 10, a nozzle body 12 on the right side of the lance body 10, and the slider 6 sliding inside the groove 8 in cooperation with the hydraulic rod 4 via the connecting column 5.

[0026] During operation, firstly, external hoisting equipment is used to hoist the gun body 10 and the nozzle body 12 through the lifting ring 11 at the top to the placement seat 9. After hoisting, the height of the placement seat 9 is adjusted to ensure that the gun body 10 and the nozzle body 12 are on the same axis. Specifically, the hydraulic rod 4 is activated, and multiple sets of hydraulic rods 4 start to operate simultaneously. Under their action, the connecting column 5 moves the placement seat 9 upward together, thereby raising the inner gun body 10. At this time, the gun body 10 and the nozzle are on the same axis, and welding installation can be carried out. Similarly, the placement seat 9 where the nozzle is located is equipped with corresponding hydraulic rods 4 and other components, which can also be used to adjust the height of the nozzle so that the nozzle and the gun body 10 can be matched. In addition, the setting of the ball bearings 7 inside the slider 6 can improve the smoothness of the connecting column 5 and the placement seat 9 during the lifting process. The height of the placement seat 9 can be adjusted through the hydraulic rods 4, connecting column 5, placement seat 9, slider 6 and other components, thereby ensuring that the gun body 10 and the nozzle are on the same central axis, and also improving the welding accuracy.

[0027] Example 2: Please refer to Figure 1 - Figure 6 As shown, this embodiment is an oxygen lance nozzle installation and adjustment mechanism. A connecting strap 13 is fixedly connected to the upper edge of the placement base 9, and a mounting block 14 is fixedly connected to the other end of the connecting strap 13. A limiting hole 15 is opened inside the mounting block 14. A connecting block 16 is fixedly connected to the front side of the placement base 9. A moving block 17 is provided inside the connecting block 16. A limiting rod 18 is fixedly connected to one side of the moving block 17, and a sliding rod 19 is fixedly connected to the other side of the moving block 17. A telescopic rod 20 is provided on the front side of the moving block 17 near the sliding rod 19. A spring 21 is sleeved on the outside of the telescopic rod 20. The limiting rod 18 is adapted to the limiting hole 15 inside the mounting block 14. The moving block 17 slides inside the connecting block 16 through the sliding rod 19, the telescopic rod 20, and the spring 21.

[0028] Before welding, the gun body 10 and nozzle body 12 can be limited by the connecting strap 13. Specifically, by pulling the sliding rod 19, the sliding rod 19 moves the moving block 17 to one side. During this process, the limiting rod 18 moves synchronously with it. At this time, the mounting block 14 is slid into the mounting groove inside the placement seat 9. After it reaches the preset position, the spring 21 rebounds by its own elastic potential energy and makes the limiting rod 18 lock into the limiting hole 15, thereby limiting the mounting block 14. The connecting strap 13 will be close to the outside of the gun body 10 to achieve auxiliary limiting. Similarly, by pulling the sliding rod 19 again, the limiting of the mounting block 14 can be released, thereby removing the gun body 10 from the placement seat 9. The components such as the mounting block 14, connecting strap 13, sliding rod 19, spring 21, and limiting rod 18 can effectively limit the gun body 10 and nozzle, avoiding problems such as slippage during welding, and also improving the stability of welding.

[0029] As can be seen from Embodiments 1 and 2, on the one hand, the height of the placement seat 9 can be adjusted by components such as the hydraulic rod 4, connecting column 5, placement seat 9, and slider 6, so that the gun body 10 and the nozzle are on the same central axis, and the welding accuracy can be improved. On the other hand, the gun body 10 and the nozzle can be effectively limited by components such as the mounting block 14, connecting belt 13, sliding rod 19, spring 21, and limiting rod 18, so as to avoid slippage during welding and improve the stability of welding.

[0030] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

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