Oxygen lance

Abstract

The utility model discloses an oxygen lance which comprises a lance core A and a lance sleeve sleeved on the front portion of the lance core A. The lance core A is in threaded connection with the lance sleeve. The gun core A comprises an oxygen pipe A. The oxygen pipe A is sleeved with a gun core outer pipe A. The rear portion of the gun core outer pipe A is sleeved with a gun sleeve connecting base A. The rear end of the gun sleeve connecting base A is connected with a connecting ring. The connecting ring is provided with a gas connector and an epoxy connector. The gas connector penetrates through the outer wall of the connecting ring and is connected with a gas connector formed in the gun core outer pipe A. The epoxy connector penetrates through the outer wall of the connecting ring. The epoxy joint is connected with an epoxy interface arranged on the connecting ring; and an oxygen pipe mounting seat is arranged behind the connecting ring and is movably connected with an oxygen pipe connecting piece A connected to the tail part of the oxygen pipe A through a hoop. By changing the structure of the tail part of the gun core, a sealing ring is prevented from being used for sealing, so that the situation of gun explosion caused by blow-by of fuel gas and oxygen is avoided, the structural design is ingenious, and the practicability is high.

Description

Technical Field

[0001] This utility model relates to the field of metallurgical technology, and in particular to an oxygen lance. Background Technology

[0002] The oxygen lance is one of the main process equipment in oxygen converter steelmaking, playing a crucial role in slag formation, splashing, impurity removal, converter steelmaking endpoint control, and various steelmaking technical indicators. Existing technology includes an oxygen lance such as... Figure 5-7 As shown, the space within the holster connector is divided into a gas inlet chamber and an epoxy inlet chamber by a partition, which are connected to the gas inlet pipe and the epoxy inlet pipe, respectively. Although existing oxygen lances have sealing rings installed on the partitions to achieve a tight seal between the two chambers, these sealing rings will fail after a period of service, causing gas and oxygen to cross-contaminate between the gas inlet chamber and the epoxy inlet chamber, thus posing a risk of lance explosion. Utility Model Content

[0003] In order to solve the above-mentioned technical problems, this utility model provides an oxygen lance.

[0004] This utility model is implemented according to the following technical solution:

[0005] An oxygen lance includes a lance core A and a shroud fitted around the front of the lance core A, with the lance core A and the shroud threaded together. The lance core A includes an oxygen tube A, which is covered by an outer tube A. A shroud connecting seat A is fitted around the rear of the outer tube A. A connecting ring is connected to the rear end of the shroud connecting seat A. The connecting ring has a gas connector and an epoxy connector. The gas connector penetrates the outer wall of the connecting ring and connects to a gas interface on the outer tube A. The epoxy connector connects to an epoxy interface on the connecting ring. An oxygen tube mounting seat is located behind the connecting ring, and the oxygen tube mounting seat is movably connected to an oxygen tube connector A connected to the tail of the oxygen tube A via a clamp.

[0006] Furthermore, a baffle is provided inside the holster along the extension direction of the holster; a cooling inlet and outlet are also provided on the holster.

[0007] Furthermore, the rear end of the holster is provided with a connection port, which is threadedly connected to the holster connector A.

[0008] The advantages and beneficial effects of this utility model are:

[0009] (1) This utility model changes the structure of the tail of the gun core to avoid the use of sealing rings for sealing, thereby avoiding the occurrence of gas and oxygen cross-contamination that could cause the gun to explode.

[0010] (2) This utility model uses a clamp to connect the oxygen tube to the outer tube of the gun core, which facilitates the quick replacement of the oxygen tube;

[0011] (3) This utility model only optimizes the structure of the tail of the gun core. The optimized gun core can be used with existing gun holsters and has wide applicability. Attached Figure Description

[0012] Figure 1 This is the front view of this utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the holster of this utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the gun core A of this utility model;

[0015] Figure 4 This is a partial cross-sectional view of the gun core A of this utility model;

[0016] Figure 5 This is a front view of an oxygen lance in the prior art;

[0017] Figure 6 This is a schematic diagram of the structure of gun core B in the prior art;

[0018] Figure 7 This is a partial cross-sectional view of the gun core B in the existing technology.

[0019] Among them, 1. Holster; 11. Cooling inlet / outlet; 12. Connection port;

[0020] 2. Gun core A; 21. Oxygen hose A; 22. Gun core outer tube A; 23. Gun holster connector A; 24. Connecting ring; 25. Oxygen hose mounting base; 26. Oxygen hose connector A; 27. Clamp; 28. Gas interface; 29. ​​Epoxy interface;

[0021] 3. Gun core B; 31. Oxygen pipe B; 32. Gun core outer tube B; 33. Gun holster connector B; 34. Partition plate; 35. Sealing ring; 36. Oxygen pipe connector B; 37. Gas connector; 38. Epoxy connector. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] This invention is a structural optimization of an existing oxygen lance, the structure of which is as follows: Figure 5-7As shown, the existing oxygen gun includes a gun core B3 and a gun sleeve 1 fitted on the gun core B3. The rear end of the gun sleeve 1 is provided with a connection port 12, which is threadedly connected to the gun sleeve connecting seat B33 at the rear of the gun core B3. Specifically, the gun core B3 includes an oxygen tube B31, an outer tube B32 of the gun core is sleeved around the oxygen tube B31, and a sleeving connector B33 is fitted around the rear of the outer tube B32. A partition 34 is connected to the middle of the inner wall of the sleeving connector B33, and a sealing ring 35 is provided between the partition 34 and the outer wall of the outer tube B32. The partition 34 divides the sleeving connector B33 into two chambers: a gas inlet chamber and an epoxy inlet chamber. Gas connectors 37 and epoxy connectors 38 are respectively connected to the walls of the two chambers. The gas connector 37 communicates with the gas chamber formed between the oxygen tube B31 and the outer tube B32 through through holes in the gas inlet chamber and the outer tube B32. An oxygen tube connector B36 is fixedly connected to the rear end of the sleeving connector B33.

[0024] As can be seen from the above structure, the gas inlet chamber and the epoxy inlet chamber are separated by a partition 34, and a sealing ring 35 is provided between the partition 34 and the outer tube B 32 of the gun core. If the sealing ring 35 fails, the gas and oxygen will mix, resulting in a gun explosion. To address the above technical problem, this application optimizes the rear structure of the gun core, as follows:

[0025] like Figures 1-4 As shown, an oxygen gun includes a gun core A2 and a holster 1 sleeved on the gun core A2. The rear end of the holster 1 is provided with a connection port 12, which is threadedly connected to the holster connecting seat A23 at the rear of the gun core A2.

[0026] The holster 1 contains a cooling chamber with a baffle plate. Cooling inlets and outlets 11 are located on the outer wall of the holster 1. The cooling medium enters through one of the cooling inlets and outlets 11, is deflected at the end of the baffle plate, and then exits through the other cooling inlet and outlet 11, thereby cooling the gun body. Furthermore, this application only optimizes the structure of the gun core. The optimized gun core can be adapted to the existing holster, solving the problem of gun explosion while minimizing the manufacturing cost of the oxygen gun.

[0027] The gun core A2 includes an oxygen tube A21, an outer tube A22 is fitted over the oxygen tube A21, and a holster connector A23 is fitted over the rear of the outer tube A22. The holster connector A23 is used to connect to the holster 1. A connecting ring 24 is connected to the rear end of the holster connector A23. A gas connector and an epoxy connector are connected to the connecting ring 24. The gas connector passes through the outer wall of the connecting ring 24 and connects to the gas interface 28 provided on the outer tube A22. The epoxy connector is connected to the epoxy interface 29 provided on the connecting ring 24.

[0028] An oxygen tube mounting assembly is located behind the connecting ring 24. This assembly includes an oxygen tube mounting seat 25 connected to the outer tube A 22 of the gun core and an oxygen tube connector A 26 connected to the tail of the oxygen tube A 21. The front end of the oxygen tube connector A 26 is fitted onto the oxygen tube mounting seat 25 and connected via a clamp 27. The clamp in this application can employ any existing structure capable of securing the two parts; no specific limitations are made on the clamp's structure here. Compared to the prior art, this application uses a clamp connection method, which allows for quick removal of the oxygen tube, facilitating replacement and maintenance.

[0029] The applicant declares that the above description is only a specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Those skilled in the art should understand that any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model fall within the protection and disclosure scope of the present utility model.

Claims

1. An oxygen lance characterized by: The gun core A and the gun cover are screwed; the gun core A includes an oxygen pipe A, the outer cover of the oxygen pipe A is provided with a gun core outer pipe A, the rear part of the gun core outer pipe A is provided with a gun cover connecting seat A, the rear end of the gun cover connecting seat A is connected with a connecting ring, the connecting ring is respectively provided with a gas joint and an oxygen joint, the gas joint penetrates the outer wall of the connecting ring and is connected with a gas joint provided on the gun core outer pipe A, and the oxygen joint is connected with an oxygen joint provided on the connecting ring; the rear part of the connecting ring is provided with an oxygen pipe mounting seat, and the oxygen pipe mounting seat is movably connected with an oxygen pipe connecting piece A connected with the tail part of the oxygen pipe A through a hoop.

2. A lance according to claim 1, characterized in that: The gun cover is provided with a baffle along the extension direction of the gun cover; the gun cover is further provided with a cooling inlet and outlet.

3. The lance of claim 1 wherein: The rear end of the gun cover is provided with a connecting port, and the connecting port is screwed with the gun cover connecting seat A.

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