Oxygen lance storage structure

Abstract

The utility model discloses an oxygen lance storage structure which comprises an oxygen lance body, an oxygen lance storage support, an oxygen lance ball seat and an oxygen lance storage device. Two oxygen lance storage supports are arranged on the oxygen lance body, an oxygen lance ball seat is arranged between the two oxygen lance storage supports, and the oxygen lance storage supports, the oxygen lance ball seat and the oxygen lance body are connected in a welded mode. The oxygen lance storage device comprises a plurality of storage supports which are welded to a platform beam of a converter high-rise frame and arranged at intervals in pairs, the distance between every two storage supports in pairs is larger than the outer diameter of an oxygen lance body, and a storage groove base is welded to each storage support. Each storage groove seat is provided with a groove which is provided with an upward opening and is used for accommodating an oxygen lance storage support; the two oxygen lance storage supports are inserted into the two paired grooves, so that oxygen lances are stored, and the bottom faces of the oxygen lance ball seats are in a convex arc shape and do not make contact with the storage supports. The oxygen lance storage stability and perpendicularity are effectively guaranteed, the oxygen lance is prevented from accidentally falling off from the support, and the requirement for quick replacement of novel steelmaking workshop oxygen lances is met.

Description

Technical Field

[0001] The utility model relates to the field of steelmaking in iron and steel metallurgy, and particularly relates to a structure for storing oxygen lances. Background Art

[0002] As a core device for converter steelmaking, the oxygen lance needs to be inserted into the converter during smelting to achieve a complex steelmaking reaction process through an oxygen jet or to achieve slag splashing and furnace lining protection in the converter through a nitrogen jet. When the oxygen lance is blowing, a large amount of high-temperature molten slag or a mixture of steel slag adheres to the lance body, seriously affecting the service life of the oxygen lance. When the oxygen lance reaches its service life or fails, it needs to be taken offline for treatment. Considering the continuous production of steelmaking and the current high-efficiency smelting in converters with a short blowing cycle, compared with the traditional smelting method, the oxygen lance replacement time needs to be greatly shortened. Therefore, most steel plants adopt a fast oxygen lance replacement mode, and each converter needs to be equipped with 3 to 4 spare oxygen lances, which are stored above the high-span platform of the converter. To meet the fast oxygen lance replacement requirement and shorten the lance replacement time, higher requirements are also put forward for the storage of oxygen lances. If the fast replacement oxygen lance does not match the traditional storage rack reasonably, a series of problems are likely to occur, such as a long lance replacement time, the oxygen lance falling off the hanging platform, or the deformation of the oxygen lance body. Content of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the utility model provides a structure for storing oxygen lances, which effectively ensures the stability and perpendicularity of the oxygen lance storage, prevents the oxygen lance from accidentally falling off the support, and is suitable for the fast replacement requirement of oxygen lances in a new steelmaking workshop.

[0004] To achieve the above object, the utility model is realized through the following technical solutions:

[0005] A structure for storing oxygen lances includes an oxygen lance body, oxygen lance storage supports, an oxygen lance ball seat, and an oxygen lance storage device; two oxygen lance storage supports are arranged on the oxygen lance body, and an oxygen lance ball seat is arranged between the two oxygen lance storage supports. The oxygen lance storage supports, the oxygen lance ball seat, and the oxygen lance body are connected by welding; the oxygen lance storage device includes a plurality of storage supports that are welded to the platform beam of the high-rise frame of the converter and are arranged in pairs at intervals. The distance between two paired storage supports is greater than the outer diameter of the oxygen lance body. A storage groove seat is welded on each storage support, and each storage groove seat is provided with a groove with an upward opening for accommodating the oxygen lance storage support; the two oxygen lance storage supports are inserted into the two paired grooves, thereby realizing the storage of the oxygen lance. The bottom surface of the oxygen lance ball seat is convex and arc-shaped and does not contact the storage support.

[0006] Further, one end of the storage support is welded above the platform beam of the high-rise frame of the converter, and a diagonal brace is used to connect the storage support and the platform beam to form a triangular structure.

[0007] Further, the diagonal brace is made of channel steel.

[0008] Further, diamond plates are laid at one end of each storage bracket close to the platform beam.

[0009] Further, a guardrail is provided at the edge of the diamond plate on the side away from the platform beam.

[0010] Further, both sides of the groove are chamfered, and the chamfers open to both sides at an angle of 60° to the horizontal direction.

[0011] Further, the oxygen lance storage support is made of steel plate. Two oxygen lance storage supports are symmetrically arranged at 180°, and round holes are provided on both oxygen lance storage supports.

[0012] Further, each groove is at the same horizontal level, and the width of the groove is greater than the width of the oxygen lance storage support.

[0013] Further, the storage trough seat is located above the center line of the storage bracket.

[0014] Further, the storage bracket is made of section steel, and the storage trough seat is made of a 60-mm-thick steel plate.

[0015] The utility model has the following beneficial effects:

[0016] 1) Effectively ensure the stability and perpendicularity of the oxygen lance storage, and prevent the oxygen lance from accidentally falling off the bracket;

[0017] 2) Simple structure, reasonable layout, and low construction cost.

[0018] 3) The storage trough seat is provided with a specially processed groove, and the groove opening is chamfered, which is convenient for oxygen lance storage, has high stability, and is simple, flexible, safe and reliable in operation.

[0019] 4) Multiple storage positions significantly improve the lance changing efficiency of the converter and fully meet the requirements of the fast change of the new oxygen lance.

[0020] 5) It can be applied to both newly built plant facilities and technical transformation of existing facilities. Description of the Drawings

[0021] Figure 1 is a schematic diagram of an oxygen lance storage structure provided by the utility model.

[0022] Figure 2 is Figure 1 the front view of

[0023] Figure 3 is Figure 1 the top view of

[0024] In the figure, 11 is the oxygen lance body; 12 is the oxygen lance storage support; 13 is the oxygen lance ball seat; 21 is the storage bracket; 22 is the storage

[0025] Slot seat; 23. Platform beam; 24. Diagonal brace; 25. Checkered plate. Detailed implementation mode

[0026] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0027] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0028] As Figures 1 to 3 shown, this embodiment discloses an oxygen lance storage structure, including an oxygen lance body 11, an oxygen lance storage support 12, an oxygen lance ball seat 13, a storage bracket 21, a storage slot 22, a platform beam 23, a diagonal brace 24, and a checkered plate 25.

[0029] Two oxygen lance storage supports 12 are arranged on the oxygen lance body 11, and an oxygen lance ball seat 13 is arranged between the two oxygen lance storage supports 12. The oxygen lance storage support 12, the oxygen lance ball seat 13, and the oxygen lance body 11 are welded together. The bottom surface of the oxygen lance ball seat 13 is convex and circular arc-shaped, and is used to match the concave circular arc surface on the oxygen lance traversing trolley during work (not shown in the figure). The oxygen lance storage support 12 is made of steel plate, and the two oxygen lance storage supports 12 are symmetrically arranged at 180°. Circular holes (preferably φ32) are provided on both of the two oxygen lance storage supports 12. When the oxygen lance is working, a positioning pin (not shown in the figure) is inserted into the circular hole to lock the oxygen lance storage support 12, thereby preventing the oxygen lance from shaking.

[0030] The oxygen lance storage device includes a plurality of storage brackets 21 that are welded to the platform beam 23 of the converter high-rise frame and are arranged in pairs at intervals. The distance between the two paired storage brackets 21 is greater than the outer diameter of the oxygen lance body 11 to ensure the normal storage of the oxygen lance. To ensure the structural strength of the storage bracket 21, the storage bracket 21 and the platform beam 23 are connected by a diagonal brace 24, and the three form a stable structure. The diagonal brace 24 is preferably made of channel steel.

[0031] A storage groove seat is welded on each storage bracket 21. Each storage groove seat is provided with a groove facing upward for accommodating the oxygen lance storage support 12. The bottoms of the grooves are at the same horizontal level. The width of the grooves is slightly larger than the outer dimension of the oxygen lance storage support 12, which can effectively ensure the stability and perpendicularity of the oxygen lance storage and prevent the oxygen lance from accidentally falling off the bracket. Preferably, both sides of the groove are chamfered, and the chamfers open to both sides at an angle of 60° with the horizontal direction. The chamfers play a guiding role for the oxygen lance storage support 12 to insert into the groove, facilitating the positioning of the oxygen lance storage.

[0032] The grooves specially processed on the storage card slot 22. The distance from the bottom surface of the grooves to the upper surface of the storage bracket 21 needs to be determined according to the dimensions of the oxygen lance storage support 12 and the oxygen lance ball seat 13. When the oxygen lance is normally stored, the lower surface of the oxygen lance ball seat 13 does not directly contact the storage bracket 21, avoiding damage to the surface of the oxygen lance ball seat 13 and affecting normal operation.

[0033] Preferably, the storage bracket 21 is made of section steel. The storage groove seat is located above the center line of the storage bracket 21, and the overall structure has a stable center of gravity. The storage groove seat is made of 60 mm thick steel plate. [[ID=..]]

[0034] The usage method of the oxygen lance storage structure in this embodiment is as follows:

[0035] When an oxygen lance reaches its service life or fails and needs to be taken offline, first use the high-span crane (not shown in the figure) to remove the oxygen lance from the oxygen lance traversing trolley, hoist it near the oxygen lance storage device, adjust the hoisting height, and the operator operates on the checkered steel plate 25 of the platform to ensure that the bottom height of the oxygen lance storage support 12 is slightly higher than the upper surface of the storage card slot 22. At this time, hoist the oxygen lance body 11 to enter through the middle gap of the storage bracket 21. The storage bracket 21 plays a role in restricting the hoisting of the oxygen lance. Stop when it is directly above the storage card slot 22, slowly lower the height. After the oxygen lance storage support 12 is completely positioned in the groove of the storage card slot 22, it means that the oxygen lance storage is completed. When the oxygen lance is removed from the storage device, it is the opposite of the oxygen lance storage. The operator operates on the checkered steel plate 25 of the platform. First, use the high-span crane (not shown in the figure) to lift the oxygen lance from the storage device, adjust the hoisting height, ensure that the bottom height of the oxygen lance storage support 12 is slightly higher than the upper surface of the storage card slot 22, and lift the oxygen lance body 11 out through the middle gap of the storage bracket 21 until the traversing trolley completes the rapid replacement of the oxygen lance. This oxygen lance storage device can effectively ensure the stability and perpendicularity of the oxygen lance storage, prevent the oxygen lance from accidentally falling off the bracket; the storage device has a simple structure, reasonable layout, and low manufacturing cost; the storage card slot 22 of the oxygen lance storage device is provided with specially processed grooves, which are convenient for oxygen lance storage, have high stability, and are simple and flexible to operate, safe and reliable; this storage device can significantly improve the lance changing efficiency of the converter and fully meet the requirements of the new oxygen lance quick change; this device is suitable for both newly built plant facilities and technical transformation of existing facilities.

[0036] As described above, the embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention. Therefore, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

Claims

1. An oxygen lance storage structure, characterized in that It includes an oxygen lance body, an oxygen lance storage support, an oxygen lance ball seat and an oxygen lance storage device; Two oxygen lance storage supports are arranged on the oxygen lance body, and an oxygen lance ball seat is arranged between the two oxygen lance storage supports. The oxygen lance storage support, the oxygen lance ball seat and the oxygen lance body are connected by welding; The oxygen lance storage device includes a plurality of storage supports that are welded to the platform beam of the converter high-rise frame and are arranged in pairs at intervals. The distance between two paired storage supports is greater than the outer diameter of the oxygen lance body. A storage groove seat is welded on each storage support, and each storage groove seat is provided with a groove that opens upward and is used to accommodate the oxygen lance storage support; Insert the two oxygen lance storage supports into the two paired grooves, so as to realize the storage of the oxygen lance. The bottom surface of the oxygen lance ball seat is convex and arc-shaped and does not contact the storage support.

2. The oxygen lance storage structure according to claim 1, wherein, One end of the storage support is welded above the platform beam of the converter high-rise frame, and the storage support and the platform beam are connected by a diagonal brace to form a triangular structure.

3. The oxygen lance storage structure according to claim 2, characterized in that, The diagonal brace is made of channel steel.

4. The oxygen lance storage structure according to claim 1, characterized in that, Patterned steel plates are laid at one end of each storage support close to the platform beam.

5. The oxygen lance storage structure according to claim 4, wherein, A guardrail is provided at the edge of the patterned steel plate on the side away from the platform beam.

6. The oxygen lance storage structure according to claim 1, characterized in that, Both sides of the groove are chamfered, and the chamfers open to both sides at an angle of 60° with the horizontal direction.

7. The oxygen lance storage structure according to claim 1, characterized in that The oxygen lance storage support is made of steel plate, and the two oxygen lance storage supports are symmetrically arranged at 180°. Round holes are provided on both oxygen lance storage supports.

8. The oxygen lance storage structure according to claim 1, characterized in that, Each groove is kept at the same level, and the width of the groove is greater than the width of the oxygen lance storage support.

9. The oxygen lance storage structure according to claim 1, characterized in that, The storage groove seat is located above the center line of the storage support.

10. The oxygen lance storage structure according to claim 1, characterized in that, The storage support is made of section steel, and the storage groove seat is made of a 60-mm-thick steel plate.

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