Converter oxygen lance fixing device

Abstract

The utility model discloses a converter oxygen lance fixing device, which belongs to the technical field of oxygen converter steelmaking, and comprises a rack, a lifting mechanism arranged above the rack, a main lance limiting mechanism arranged on the lifting mechanism, a main oxygen lance arranged in the main lance limiting mechanism, a standby sliding rail arranged on one side above the rack, a standby sliding block connected with the standby sliding rail in a sliding manner, and a main oxygen lance arranged in the standby sliding block. A standby sliding rail is arranged on the rack, a standby limiting mechanism is arranged on the standby sliding block, a standby oxygen lance is arranged in the standby limiting mechanism, a transfer sliding rail is arranged on the side, away from the standby sliding rail, of the rack, a transfer sliding block is arranged on the transfer sliding rail, and a disassembling assembly is arranged on the transfer sliding block. And the phenomenon that the oxygen lance is difficult to butt with equipment is avoided, and the stability and the safety of operation are improved.

Description

Technical Field

[0001] This utility model belongs to the field of oxygen converter steelmaking technology, specifically relating to a converter oxygen lance fixing device. Background Technology

[0002] In converter steelmaking, the oxygen lance is one of the core pieces of equipment. Its main function is to inject high-purity oxygen at high speed into the molten pool, removing impurities such as carbon, sulfur, and phosphorus from the molten iron through oxidation, thereby refining the steel. The oxygen lance nozzle directly contacts the high-temperature molten pool and operates in an extreme environment for extended periods, enduring high temperatures, strong corrosion, and intense impacts. Therefore, the nozzle is prone to wear, deformation, and even damage. Failure to replace damaged oxygen lances promptly will not only affect blowing efficiency but may also lead to a decline in smelting quality and even endanger equipment safety. Therefore, establishing an efficient and safe oxygen lance replacement mechanism is of great significance for improving converter operating efficiency and the quality of steel products.

[0003] Currently, there are many inconveniences in the oxygen lance replacement process. On the one hand, traditional replacement methods rely heavily on manual operation, which is labor-intensive and inefficient, especially in high-temperature environments where workers face significant safety risks. On the other hand, existing replacement equipment has a complex structure and lacks automation, making the disassembly, transportation, and installation of the oxygen lance time-consuming and potentially disrupting the smelting process. Furthermore, inaccurate positioning during replacement often leads to difficulties in docking the oxygen lance with the equipment, affecting the stability and safety of the operation. Utility Model Content

[0004] The purpose of this utility model is to provide a converter oxygen lance fixing device to solve at least one aspect of the problems and defects mentioned in the background art.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A converter oxygen lance fixing device includes a frame, a lifting mechanism above the frame, a main lance limiting mechanism on the lifting mechanism, a main oxygen lance inside the main lance limiting mechanism, a spare slide rail on one side above the frame, a spare slider slidably connected to the spare slide rail, a spare limiting mechanism on the spare slider, a spare oxygen lance inside the spare limiting mechanism, a transfer slide rail on the side of the frame away from the spare slide rail, a transfer slider on the transfer slide rail, and a disassembly assembly on the transfer slider.

[0007] Furthermore, the lifting mechanism includes a vertical slide rail, on which a lifting slider is provided, and on which a main oxygen lance limiting mechanism is provided. The vertical slide rail provides a vertical movement path for the main oxygen lance, ensuring that the lifting slider moves smoothly in a fixed direction. The vertical slide rail is made of high-strength material and has high wear resistance and load-bearing capacity. The lifting slider is fixed by the main oxygen lance limiting mechanism, which facilitates the secure lifting and lowering of the main oxygen lance.

[0008] Furthermore, the main oxygen gun limiting mechanism includes an installation platform, which is fixedly connected to the lifting slider. A fixed frame is provided in the middle of the installation platform, and an oxygen gun locking mechanism is provided above the fixed frame. The main oxygen gun is clamped in the oxygen gun locking mechanism, and a centering guide mechanism is provided below the oxygen gun locking mechanism.

[0009] Furthermore, the oxygen lance locking mechanism includes two electric push rods, which are arranged on both sides of the fixed frame. The telescopic ends of the two electric push rods are fixedly connected to limit rings. The electric push rods drive the limit rings to clamp the main oxygen lance, thereby achieving fast and safe fixing.

[0010] Furthermore, the centering guide mechanism includes a connecting plate, which is fixedly connected to the mounting platform, and a tapered guide sleeve is fixedly connected to the connecting plate.

[0011] Furthermore, the backup limiting mechanism includes a backup frame, which is fixedly connected to the backup slider. The backup frame has a first cylinder on both sides of its upper part. The telescopic ends of the first cylinders are fixedly connected to a first clamping ring. A backup oxygen lance is clamped between the two first clamping rings. The telescopic movement of the first cylinders on the backup frame drives the first clamping rings to clamp the backup oxygen lance.

[0012] Furthermore, the disassembly assembly includes a transfer frame, the transfer slider is provided with the transfer frame, and the upper two sides of the transfer frame are provided with second cylinders, the extension and retraction ends of the second cylinders are fixedly connected with second clamping rings.

[0013] Furthermore, limit switches are provided on both the upper and lower sides of the vertical slide rail. When the lifting slider moves upward and approaches the top of the vertical slide rail, the limit switches on both sides are used to indicate that the lifting slider moves up and down within a suitable range.

[0014] The beneficial effects of this utility model are:

[0015] The transfer slider moves on the transfer rail, causing the disassembly assembly to be positioned above the main oxygen lance limiting mechanism. The lifting mechanism then moves the main oxygen lance limiting mechanism until the upper end of the main oxygen lance, which is limited by the upper part of the main oxygen lance, is located inside the disassembly assembly. The disassembly assembly clamps the upper end of the main oxygen lance, and the main oxygen lance limiting mechanism is no longer limiting the lower end of the main oxygen lance. The lifting mechanism then moves the main oxygen lance limiting mechanism downwards again, leaving space for the disassembled main oxygen lance to retract. When replacing the spare oxygen lance, the spare slider moves laterally on the spare rail, causing the spare oxygen lance clamped by the spare limiting mechanism to move above the main oxygen lance limiting mechanism. The lifting mechanism then moves the main oxygen lance limiting mechanism to the lower end of the spare oxygen lance, where the lower end of the spare oxygen lance is clamped by the main oxygen lance limiting mechanism. The spare oxygen lance is no longer clamping the upper end of the spare oxygen lance, and the lifting mechanism then moves the main oxygen lance limiting mechanism downwards again until the spare oxygen lance clamped inside moves to the working position, completing the oxygen lance replacement. This process avoids difficulties in docking the oxygen lance with the equipment due to inaccurate positioning during oxygen lance replacement, improving the stability and safety of the operation. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure provided by this utility model;

[0018] Figure 2 This is a structural diagram of the main oxygen lance in its disassembled state provided by this utility model;

[0019] Figure 3 This is a schematic diagram of the main gun limiting mechanism provided by this utility model;

[0020] Figure 4 This is a schematic diagram of the backup limiting mechanism provided by this utility model;

[0021] Figure 5 This is a schematic diagram of the disassembly component structure provided by this utility model.

[0022] In the diagram: 1. Frame; 2. Lifting mechanism; 21. Vertical slide rail; 22. Lifting slider; 3. Main lance limiting mechanism; 31. Mounting platform; 32. Fixed frame; 33. Oxygen lance locking mechanism; 331. Electric push rod; 32. Fixed frame; 332. Limiting ring; 34. Centering guide mechanism; 341. Connecting plate; 342. Conical guide sleeve; 4. Spare slide rail; 5. Spare slider; 6. Spare limiting mechanism; 61. Spare frame; 62. First cylinder; 63. First clamping ring; 7. Spare oxygen lance; 8. Transfer slide rail; 9. Transfer slider; 10. Disassembly assembly; 101. Transfer frame; 102. Second cylinder; 103. Second clamping ring; 11. Limit switch; 100. Main oxygen lance. 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5 As shown, this utility model is a converter oxygen lance fixing device, including a frame 1, a lifting mechanism 2 above the frame 1, a main lance limiting mechanism 3 on the lifting mechanism 2, a main oxygen lance 100 inside the main lance limiting mechanism 3, a spare slide rail 4 on one side above the frame 1, a spare slider 5 slidably connected to the spare slide rail 4, a spare limiting mechanism 6 on the spare slider 5, a spare oxygen lance 7 inside the spare limiting mechanism 6, a transfer slide rail 8 on the side of the frame 1 away from the spare slide rail 4, a transfer slider 9 on the transfer slide rail 8, and a disassembly component 10 on the transfer slider 9. The main oxygen lance 100 is fixed to the lifting mechanism 2 by the main lance limiting mechanism 3. The lifting mechanism 2 controls the up and down movement of the main oxygen lance 100 to ensure that the main oxygen lance 100 can be accurately positioned to the appropriate working position according to the converter operation requirements. The main lance limiting mechanism 3 provides stable support to prevent the oxygen lance from vibrating during the blowing process. Or, due to impact, the main oxygen lance 100 is removed from the lifting mechanism 2 via the disassembly assembly 10 and placed on the transfer slide rail 8 via the transfer slider 9. The transfer slide rail 8 provides a sliding channel for the disassembled main oxygen lance 100. The transfer slider 9 is responsible for moving the disassembled main oxygen lance 100 to the designated storage location. The disassembly assembly 10 can use a robotic arm or other clamping device to ensure a smooth and reliable disassembly process. The spare slide rail 4 provides a sliding channel for the spare oxygen lance 7. The spare oxygen lance 7 is installed on the spare slider 5 on the spare slide rail 4. The spare limit mechanism 6 fixes the spare oxygen lance 7 to ensure that the spare oxygen lance 7 slides stably and safely on the spare slide rail 4. When the main oxygen lance 100 needs to be replaced, the spare oxygen lance 7 moves to the position of the main oxygen lance 100 via the spare slide rail 4 to complete the docking. In high-intensity production lines where the main oxygen lance 100 needs to be replaced frequently, this can significantly improve production efficiency and equipment operation stability.

[0025] The specific working principle is as follows: When the main oxygen lance 100 needs to be replaced, the transfer slider 9 moves on the transfer slide rail 8, causing the disassembly assembly 10 to be positioned above the main oxygen lance limiting mechanism 3. The lifting mechanism 2 drives the main oxygen lance limiting mechanism 3 to move until the upper end of the main oxygen lance 100, which is limited by the upper part of the main oxygen lance limiting mechanism 3, is located inside the disassembly assembly 10. The disassembly assembly 10 clamps the upper end of the main oxygen lance 100, and the main oxygen lance limiting mechanism 3 is no longer limiting the lower end of the main oxygen lance 100. The lifting mechanism 2 drives the main oxygen lance limiting mechanism 3 to move down again, leaving space for the disassembled main oxygen lance 100 to retract.

[0026] When replacing the spare oxygen lance 7, the spare slider 5 moves laterally on the spare slide rail 4, causing the spare oxygen lance 7, held by the spare limiting mechanism 6, to move above the main lance limiting mechanism 3. The lifting mechanism 2 then moves the main lance limiting mechanism 3 to the lower end of the spare oxygen lance 7, where the lower end of the spare oxygen lance 7 is clamped by the main lance limiting mechanism 3. The spare limiting mechanism 6 is no longer clamping the upper end of the spare oxygen lance 7, and the lifting mechanism 2 causes the main lance limiting mechanism 3 to descend again until the spare oxygen lance 7 held inside moves to the working position, completing the replacement of the oxygen lance. The oxygen lance replacement process is precise in positioning and convenient in docking with the equipment, improving the stability and safety of the operation.

[0027] In one embodiment, see Figure 1 , Figure 2 and Figure 3 The lifting mechanism 2 includes a vertical slide rail 21, on which a lifting slider 22 is provided, and on which a main oxygen gun limiting mechanism 3 is provided. The vertical slide rail 21 provides the vertical movement path of the main oxygen gun 100, ensuring that the lifting slider 22 moves smoothly in a fixed direction. The vertical slide rail 21 is made of high-strength material and has high wear resistance and load-bearing capacity. The lifting slider 22 is fixed by the main oxygen gun limiting mechanism 3, which facilitates the secure lifting and lowering of the main oxygen gun 100.

[0028] In one embodiment, see Figure 1 , Figure 2 and Figure 3As shown, the main oxygen lance limiting mechanism 3 includes an installation platform 31, which is fixedly connected to the lifting slider 22. A fixed frame 32 is provided in the middle of the installation platform 31, and an oxygen lance locking mechanism 33 is provided above the fixed frame 32. The main oxygen lance 100 is clamped in the oxygen lance locking mechanism 33, and a centering guide mechanism 34 is provided below the oxygen lance locking mechanism 33. The installation platform 31 provides stable support for the main oxygen lance limiting mechanism 3. The fixed frame 32 is installed in the middle of the installation platform 31. After the main oxygen lance 100 is inserted into the fixed frame 32, the oxygen lance locking mechanism 33 is activated to clamp the main oxygen lance 100, ensuring its stability during the blowing process. The centering guide mechanism 34 ensures that the nozzle below the main oxygen lance 100 is aligned with the center of the converter, avoiding poor blowing effect due to misalignment. After the main oxygen lance 100 is locked, the height of the main oxygen lance 100 is adjusted by sliding the lifting slider 22 on the vertical slide rail 21 to achieve the optimal blowing position.

[0029] In one embodiment, see Figure 1 , Figure 2 and Figure 3 As shown, the oxygen lance locking mechanism 33 includes two electric push rods 331, which are positioned on both sides of the fixed frame 32. The telescopic ends of the two electric push rods 331 are fixedly connected to limit rings 332. The electric push rods 331 drive the limit rings 332 to clamp the main oxygen lance 100, achieving quick and safe fixing. When replacing the main oxygen lance 100, the limit rings 332 can quickly loosen or tighten, shortening operation time. The adjustability of the limit rings 332 makes it suitable for oxygen lances of different diameters, enhancing the flexibility of the device.

[0030] In one embodiment, see Figure 1 , Figure 2 and Figure 3 As shown, the centering guide mechanism 34 includes a connecting plate 341, which is fixedly connected to the mounting platform 31. A conical guide sleeve 342 is fixedly connected to the connecting plate 341. The conical guide sleeve 342 is used to place the bottom of the main oxygen gun 100 and to pre-limit it to prevent the main oxygen gun 100 from being unstable.

[0031] In one embodiment, see Figure 1 , Figure 2 and Figure 4 The backup limiting mechanism 6 includes a backup frame 61, which is fixedly connected to the backup slider 5. The backup frame 61 has a first cylinder 62 on both sides of its upper part. The telescopic ends of the first cylinder 62 are fixedly connected to a first clamping ring 63. A backup oxygen lance 7 is clamped between the two first clamping rings 63. The telescopic movement of the first cylinder 62 on the backup frame 61 drives the first clamping rings 63 to clamp the backup oxygen lance 7.

[0032] In one embodiment, see Figure 1 , Figure 2 and Figure 5 The disassembly assembly 10 includes a transfer frame 101. The transfer slider 9 is equipped with the transfer frame 101. The upper two sides of the transfer frame 101 are equipped with second cylinders 102. The telescopic ends of the second cylinders 102 are fixedly connected to second clamping rings 103. When the second cylinders 102 are in the retracted state and the second clamping rings 103 are in the open state, the disassembly assembly 10 is in the standby state. When the second cylinders 102 are started, the telescopic ends move inward, driving the second clamping rings 103 to close. The two second clamping rings 103 gradually approach each other, firmly clamping the oxygen gun to be replaced. After the second cylinders 102 reach the set clamping force, they stop moving. The main oxygen gun 100 is fixed on the transfer frame 101. The transfer slider 9 moves along the transfer slide rail 8, driving the transfer frame 101 to take the main oxygen gun 100 out of the lifting mechanism 2. Guided by the transfer slide rail 8, the disassembly process is smooth and without shaking. The disassembled oxygen lance is moved to the designated storage position by the transfer slider 9. The second cylinder 102 is driven in the reverse direction, and the second clamping ring 103 opens, releasing the disassembled oxygen lance to the storage position.

[0033] In one embodiment, see Figure 1 and Figure 2 As shown, limit switches 11 are installed on both the upper and lower sides of the vertical slide rail 21. When the limit switches 11 are in the untriggered state, the lifting slider 22 moves freely in the middle position of the vertical slide rail 21. When the lifting slider 22 moves upward and approaches the top of the vertical slide rail 21, the upper limit switch 11 is triggered by the lifting slider 22. The switch sends a signal to the control system, indicating that the lifting slider 22 has reached the upper limit position. The control system stops the lifting mechanism 2 to prevent the lifting slider 22 from moving beyond its travel range.

[0034] The lifting slider 22 moves downwards. When the lifting slider 22 moves downwards and approaches the bottom of the vertical slide rail 21, the lower limit switch 11 is triggered by the slider. The lower limit switch 11 sends a signal to the control system, indicating that the lifting slider 22 has reached the lower limit position. The control system stops the lifting mechanism 2 to prevent the lifting slider 22 from hitting the bottom.

[0035] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A converter oxygen lance fixing device, comprising a frame (1), characterized in that, A lifting mechanism (2) is provided above the frame (1), a main gun limiting mechanism (3) is provided on the lifting mechanism (2), a main oxygen gun (100) is provided inside the main gun limiting mechanism (3), a spare slide rail (4) is provided on one side above the frame (1), a spare slider (5) is slidably connected on the spare slide rail (4), a spare limiting mechanism (6) is provided on the spare slider (5), a spare oxygen gun (7) is provided inside the spare limiting mechanism (6), a transfer slide rail (8) is provided on the side of the frame (1) away from the spare slide rail (4), a transfer slider (9) is provided on the transfer slide rail (8), and a disassembly assembly (10) is provided on the transfer slider (9).

2. The converter oxygen lance fixing device according to claim 1, characterized in that, The lifting mechanism (2) includes a vertical slide rail (21), on which a lifting slider (22) is provided, and on which a main gun limiting mechanism (3) is provided.

3. The converter oxygen lance fixing device according to claim 2, characterized in that, The main gun limiting mechanism (3) includes an installation platform (31), which is fixedly connected to the lifting slider (22). A fixed frame (32) is provided in the middle of the installation platform (31), and an oxygen gun locking mechanism (33) is provided above the fixed frame (32). The main oxygen gun (100) is clamped in the oxygen gun locking mechanism (33), and an alignment guide mechanism (34) is provided below the oxygen gun locking mechanism (33).

4. A converter oxygen lance fixing device according to claim 3, characterized in that, The oxygen lance locking mechanism (33) includes two electric push rods (331), which are arranged on both sides of the fixed frame (32). The telescopic ends of the two electric push rods (331) are fixedly connected to limit rings (332).

5. A converter oxygen lance fixing device according to claim 3, characterized in that, The centering guide mechanism (34) includes a connecting plate (341), which is fixedly connected to the mounting platform (31), and a tapered guide sleeve (342) is fixedly connected to the connecting plate (341).

6. A converter oxygen lance fixing device according to claim 1, characterized in that, The backup limiting mechanism (6) includes a backup frame (61), which is fixedly connected to the backup slider (5). The backup frame (61) is provided with first cylinders (62) on both sides of the upper part. The telescopic ends of the first cylinders (62) are fixedly connected to first clamping rings (63), and a backup oxygen gun (7) is clamped between the two first clamping rings (63).

7. A converter oxygen lance fixing device according to claim 1, characterized in that, The disassembly assembly (10) includes a transfer frame (101), the transfer slider (9) is provided with the transfer frame (101), and the upper two sides of the transfer frame (101) are provided with second cylinders (102), and the telescopic ends of the second cylinders (102) are fixedly connected with second clamping rings (103).

8. A converter oxygen lance fixing device according to claim 2, characterized in that, Limit switches (11) are provided on both the upper and lower sides of the vertical slide rail (21).

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