Argon flow stable type RH dip pipe device

Abstract

The utility model relates to the field of ferrous metallurgical equipment, and discloses an argon flow stable type RH dip pipe device which comprises a steel pipe, a shell is arranged at the bottom of the steel pipe, a first pipeline is fixedly connected in the shell, a second pipeline is fixedly connected in the shell, and a third pipeline is fixedly connected in the shell. And a fourth pipeline is fixedly connected to the interior of the shell, a plurality of evenly-distributed air pipes are fixedly connected to the inner sides of the first pipeline, the second pipeline, the third pipeline and the fourth pipeline, and the outer walls of the air pipes are fixedly connected to the interiors of the steel pipes. By arranging a plurality of pipelines, uniform distribution of argon in molten steel is realized, multi-point gas supply is formed, uniform formation of internal bubbles is ensured, the contact efficiency of gas and liquid is improved, the degassing process is promoted, the argon flow resistance is reduced, the pressure requirement of a gas supply system is reduced, the argon flow is kept stable, and the degassing process is ensured to be smooth.

Description

Technical Field

[0001] This utility model relates to the field of iron and steel metallurgical equipment, specifically to an argon flow-stabilized RH impregnation tube device. Background Technology

[0002] Steel is an iron-based alloy that is widely used in building materials, transportation and machinery manufacturing. In the steel production process, the RH impregnation tube, as an important component of the RH degassing device, plays a key role. By removing impurities from steel under vacuum conditions and precisely adjusting the chemical composition, the RH process can significantly improve the quality and performance of steel.

[0003] Argon is an inert gas that does not react with molten steel. Therefore, using an argon flow-stabilized impregnation tube can effectively reduce harmful gases that may be generated during the production process. By controlling the argon flow rate, the RH impregnation tube can effectively carry away and remove impurity gases from the molten steel, thereby improving degassing efficiency.

[0004] The existing RH immersion tube has only one gas supply pipe. A single gas supply pipe often results in uneven distribution of argon gas in the molten steel, uneven bubble formation, and affects gas removal efficiency. At the same time, the single pipe makes the fluctuations in flow rate and pressure more obvious. Pressure changes in the gas supply system directly affect the degassing process of the molten steel. In addition, the gas supply pipe and the immersion tube are not easy to disassemble, resulting in poor flexibility. Utility Model Content

[0005] The purpose of this utility model is to provide an RH impregnation tube device with stable argon flow rate, which solves the following technical problems: the existing RH impregnation tube has only one gas supply pipe and is not easy to disassemble, which not only causes the argon gas to be unevenly distributed in the molten steel, affecting the gas removal efficiency, but also results in poor flexibility.

[0006] The purpose of this utility model can be achieved through the following technical solution: an argon flow stable RH impregnation tube device, including a steel pipe, the bottom of the steel pipe is provided with an outer shell, a pipe 1 is fixedly connected inside the outer shell, a pipe 2 is fixedly connected inside the outer shell, a pipe 3 is fixedly connected inside the outer shell, and a pipe 4 is fixedly connected inside the outer shell.

[0007] Multiple evenly distributed air pipes are fixedly connected to the inner sides of each of the pipes 1, 2, 3 and 4. The outer walls of the air pipes are fixedly connected to the inside of the steel pipe. A fixing plate is fixedly connected to one end of each of the pipes 1, 2, 3 and 4.

[0008] The fixed plate is slidably connected to a connecting pipe, and an air bag is fixedly connected to the end of the connecting pipe away from the fixed plate. The fixed plate is provided with a fixing component, and a sealing component is provided between the outer shell and the steel pipe.

[0009] The fixed assembly comprises a pressing rod, the bottom of the pressing rod is slidingly connected to the inside of the fixed plate, the bottom end of the pressing rod is fixedly connected with a moving plate, the inside of the moving plate is rotatably connected with rotating plates on both sides, and the side, away from the moving plate, of the rotating plate is rotatably connected with a fixed rod.

[0010] As a preferred scheme of the utility model: the sealing assembly comprises a sealing ring, the sealing ring is fixedly connected to the inside of the shell, the inner wall of the sealing ring is fixedly connected with a reinforcing ring, and the inner wall of the reinforcing ring is fixedly connected to the outer wall of the steel pipe.

[0011] As a preferred scheme of the utility model: the outer wall of the air pipe is fixedly connected to the inside of the sealing ring, and the outer wall of the air pipe is fixedly connected to the inside of the reinforcing ring.

[0012] As a preferred scheme of the utility model: the inside of the shell is fixedly connected with a plurality of fixed blocks that are uniformly distributed, and the outer walls of the pipeline one, the pipeline two, the pipeline three and the pipeline four are fixedly connected to the inside of the fixed blocks respectively.

[0013] As a preferred scheme of the utility model: one side of the steel pipe is fixedly connected with a hook, and the top outer wall of the steel pipe is provided with a thread.

[0014] As a preferred scheme of the utility model: the bottom of the moving plate is fixedly connected with two springs, and the bottom end of the spring is fixedly connected to the inside of the fixed plate.

[0015] As a preferred scheme of the utility model: the inside of the fixed plate is provided with a sliding groove on both sides, the outer wall of the fixed rod is slidingly connected to the sliding groove in the inside of the fixed plate, the outer wall of the connecting pipe is provided with a sliding groove on both sides, and the end, away from the rotating plate, of the fixed rod is slidingly connected to the sliding groove in the outer wall of the connecting pipe.

[0016] The utility model discloses beneficial effects:

[0017] (1) the utility model discloses a plurality of pipelines are arranged, so that argon is more evenly distributed in molten steel, multi-point gas supply is formed, the uniform distribution ensures that the formation of the bubble in the molten steel is uniform, improves the contact efficiency of gas and liquid, promotes the degassing process, and the arrangement of the multiple pipelines also reduces the resistance when argon flows, reduces the pressure demand of the gas supply system, so that the flow of argon can be kept stable, and the smooth progress of the degassing process is ensured.

[0018] (2) The utility model discloses a press pressing rod can drive the moving plate to move, and then through the rotation plate rotation drive fixed link to move, and fixed link moves can remove the fixing of fixed plate and connecting pipe, thereby make the shell and gas bag separate, and the spring's elastic force can drive fixed link to reset after loosening press pressing rod, and fixed link can fix connecting pipe through reset, and through the quick separation connection of gas bag and shell can conveniently replace and optimize, ensure operation efficiency and security, adapt to the changing operation demand, improve its flexibility.

[0019] (3) The utility model discloses a sealing ring is set up between shell and steel pipe can prevent argon leakage, ensure that argon is not replaced by external air or other impurities in the process of entering molten steel, thereby improve the efficiency of degassing process, through setting up the reinforcing ring of steel pipe outer wall can enhance the strength and stability of whole immersed tube structure, effectively resist the internal and external pressure change, avoid steel pipe deformation or rupture. BRIEF DESCRIPTION OF DRAWINGS

[0020] The utility model will be further described below in connection with the drawings.

[0021] Figure 1 It is the perspective view of the utility model;

[0022] Figure 2 It is the schematic view of shell in the utility model;

[0023] Figure 3 It is the schematic view of pipeline one in the utility model;

[0024] Figure 4 It is the schematic view of fixed plate in the utility model;

[0025] Figure 5 It is the schematic view of sealing ring in the utility model;

[0026] Figure 6 It is the schematic of gas pipe in the utility model.

[0027] BRIEF DESCRIPTION OF DRAWINGS: 1, steel pipe;2, shell;3, pipeline one;4, pipeline two;5, pipeline three;6, pipeline four;7, gas pipe;8, fixed plate;9, connecting pipe;10, gas bag;11, sealing ring;12, reinforcing ring;13, fixed block;14, hook;15, silk tooth;16, press pressing rod;17, moving plate;18, rotation plate;19, fixed link;20, spring. DETAILED DESCRIPTION

[0028] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0029] Please refer to Figure 1 - Figure 6 As shown in the figure, the utility model is a kind of argon flow stable RH immersion tube device, including steel pipe 1, the bottom of steel pipe 1 is provided with shell 2, the inside fixed connection of shell 2 has pipeline one 3, the inside fixed connection of shell 2 has pipeline two 4, the inside fixed connection of shell 2 has pipeline three 5, the inside fixed connection of shell 2 has pipeline four 6, the inside of pipeline one 3, pipeline two 4, pipeline three 5 and pipeline four 6 are all fixedly connected with a plurality of evenly distributed trachea 7, the outer wall of trachea 7 is fixedly connected in the inside of steel pipe 1, the one end of pipeline one 3, pipeline two 4, pipeline three 5 and pipeline four 6 is all fixedly connected with fixed plate 8, the inside sliding connection of fixed plate 8 has connecting pipe 9, the one end of connecting pipe 9 away from fixed plate 8 is fixedly connected with gas bag 10;

[0030] The material of steel pipe 1 is 304 stainless steel, has good corrosion resistance and strength, shell 2 is used to limit the loss of heat, maintains the high temperature in vacuum chamber, not only can effectively improve the efficiency of the whole smelting process, also can guarantee the normal operation of equipment and the safety of operator, pipeline one 3, pipeline two 4, pipeline three 5 and pipeline four 6 can reduce the resistance when argon flows, reduce the pressure demand to gas supply system, trachea 7 makes argon more evenly distribute in molten steel, forms multi-point gas supply, ensures the formation of bubble in molten steel uniform, improves the contact efficiency of gas and liquid, promotes the degassing process, gas bag 10 is used to store and manage the container of argon.

[0031] The inside of fixed plate 8 is provided with fixed assembly, fixed assembly includes pressing lever 16, the bottom sliding connection of pressing lever 16 is in the inside of fixed plate 8, the bottom of pressing lever 16 is fixedly connected with moving plate 17, the inside both sides of moving plate 17 are all rotatably connected with rotary plate 18, the one side rotatably connected with fixed rod 19 of rotary plate 18 away from moving plate 17, the bottom of moving plate 17 is fixedly connected with two springs 20, the bottom of spring 20 is fixedly connected in the inside of fixed plate 8, the inside both sides of fixed plate 8 are all provided with sliding slot, the outer wall of fixed rod 19 is slidingly connected in the inside sliding slot of fixed plate 8, the outer wall of connecting pipe 9 is provided with two sides sliding slot, the one end of fixed rod 19 slidingly connected in the outer wall sliding slot of connecting pipe 9 away from rotary plate 18;

[0032] The fixed assembly is used for fixing the connecting pipe 9, the end of the connecting pipe 9 away from the gas pocket 10 is provided with a lug plate, the lug plate is inserted into one end of the pipeline one 3, so that the connecting pipe 9 and the pipeline one 3 are connected with strong sealing, so as to prevent the leakage of argon, the pressing rod 16 is used for driving the moving plate 17 to move, the moving plate 17 drives the rotating plate 18 to rotate through movement, the rotating plate 18 drives the fixed rod 19 to move through rotation, the fixed rod 19 is used for fixing the connecting pipe 9, the spring 20 drives the moving plate 17 to reset through elastic force.

[0033] The sealing assembly is arranged between the shell 2 and the steel pipe 1, the sealing assembly comprises a sealing ring 11, the sealing ring 11 is fixedly connected to the inside of the shell 2, the inner wall of the sealing ring 11 is fixedly connected with a reinforcing ring 12, the inner wall of the reinforcing ring 12 is fixedly connected to the outer wall of the steel pipe 1, the outer wall of the air pipe 7 is fixedly connected to the inside of the sealing ring 11, the outer wall of the air pipe 7 is fixedly connected to the inside of the reinforcing ring 12, the inside of the shell 2 is fixedly connected with a plurality of uniformly distributed fixed blocks 13, the outer walls of the pipeline one 3, the pipeline two 4, the pipeline three 5 and the pipeline four 6 are fixedly connected to the inside of the fixed blocks 13, one side of the steel pipe 1 is fixedly connected with a hook 14, the top outer wall of the steel pipe 1 is provided with a thread 15;

[0034] The sealing ring 11 can prevent the leakage of argon and other gases in the vacuum chamber, ensure that the argon is not replaced by external air or other impurities during entering the molten steel, the reinforcing ring 12 can enhance the strength and stability of the whole immersion tube structure, effectively resist the change of internal and external pressure, avoid the deformation or rupture of the steel pipe 1, the fixed blocks 13 are used for fixing the pipeline one 3, the pipeline two 4, the pipeline three 5 and the pipeline four 6, and the thread 15 is used for connecting with the metal hose.

[0035] The working principle of the utility model discloses: through the gas pocket 10 can be transported to the inside of connecting pipe 9 inside argon respectively, then argon enters the inside of pipeline one 3, pipeline two 4, pipeline three 5 and pipeline four 6 respectively, pipeline one 3, pipeline two 4, pipeline three 5 and pipeline four 6 are all shorter, this can make the resistance when argon flows lower, reduce the pressure demand of gas supply system, make the flow of argon can keep stable, then through the air pipe 7 uniform delivery into the molten steel, improve the contact efficiency of gas and liquid, promote the degassing process, through pressing the pressing rod 16 can drive the moving plate 17 to move, the moving plate 17 moves and drives the rotary plate 18 to rotate, the rotary plate 18 rotates and can drive the fixed rod 19 to move, the fixed rod 19 can remove the fixing of connecting pipe 9 through moving, thereby the quick disassembly of connecting pipe 9, after loosening the pressing rod 16, through the elastic force of spring 20 can drive the moving plate 17 to reset, the moving plate 17 resets and drives the fixed rod 19 to reset through the rotary plate 18, the fixed rod 19 can fix connecting pipe 9 through resetting, the quick installation and disassembly of connecting pipe 9 can make the shell 2 and gas pocket 10 separate installation quickly, thereby convenient for its replacement and optimization, through the sealing ring 11 can prevent argon leakage during argon delivery process, ensure that argon is not replaced by external air or other impurities during entering molten steel, thereby improve the efficiency of degassing process, through the shell 2 can prevent heat loss, not only can effectively improve the efficiency of the whole smelting process, but also can guarantee the normal operation of equipment and the safety of operating personnel, through the reinforcing ring 12 can enhance the strength and stability of the whole immersion tube structure, prevent the rupture of steel pipe 1.

[0036] The above embodiment of the utility model has been described in detail, but the content is only the preferred embodiment of the utility model, and cannot be considered as limiting the scope of the utility model. Any equivalent change and improvement within the scope of the utility model application shall still belong to the patent coverage range of the utility model.

Claims

1. A RH ladle shroud device of argon flow stabilization type comprising a steel tube (1), characterized in that, The bottom of the steel pipe (1) is provided with an outer shell (2), the inner side of the outer shell (2) is fixedly connected with a pipeline one (3), the inner side of the outer shell (2) is fixedly connected with a pipeline two (4), the inner side of the outer shell (2) is fixedly connected with a pipeline three (5), and the inner side of the outer shell (2) is fixedly connected with a pipeline four (6). The inner side of the pipeline one (3), the pipeline two (4), the pipeline three (5) and the pipeline four (6) are fixedly connected with a plurality of uniformly distributed air tubes (7), the outer wall of the air tube (7) is fixedly connected in the inner side of the steel pipe (1), and one end of the pipeline one (3), the pipeline two (4), the pipeline three (5) and the pipeline four (6) is fixedly connected with a fixed plate (8). The inner side of the fixed plate (8) is slidably connected with a connecting pipe (9), one end of the connecting pipe (9) away from the fixed plate (8) is fixedly connected with an air bag (10), and the inner side of the fixed plate (8) is provided with a fixing assembly. The fixing assembly comprises a pressing rod (16), the bottom of the pressing rod (16) is slidably connected in the inner side of the fixed plate (8), the bottom end of the pressing rod (16) is fixedly connected with a moving plate (17), the inner side of the moving plate (17) is rotatably connected with a rotating plate (18) on both sides, and the side of the rotating plate (18) away from the moving plate (17) is rotatably connected with a fixed rod (19).

2. The argon flow stabilizing type RH immersion tube device according to claim 1, characterized by The sealing assembly comprises a sealing ring (11), the sealing ring (11) is fixedly connected in the inner side of the outer shell (2), the inner wall of the sealing ring (11) is fixedly connected with a reinforcing ring (12), and the inner wall of the reinforcing ring (12) is fixedly connected with the outer wall of the steel pipe (1).

3. The argon flow stabilizing type RH immersion tube device according to claim 2, characterized by The outer wall of the air tube (7) is fixedly connected in the inner side of the sealing ring (11), and the outer wall of the air tube (7) is fixedly connected in the inner side of the reinforcing ring (12).

4. The argon flow stabilizing type RH immersion tube device according to claim 1, characterized by The inner side of the outer shell (2) is fixedly connected with a plurality of uniformly distributed fixed blocks (13), and the outer wall of the pipeline one (3), the pipeline two (4), the pipeline three (5) and the pipeline four (6) is fixedly connected in the inner side of the fixed block (13) respectively.

5. The argon flow stabilizing type RH immersion tube device according to claim 1, characterized by One side of the steel pipe (1) is fixedly connected with a hook (14), and the top outer wall of the steel pipe (1) is provided with a wire tooth (15).

6. The argon flow stabilizing type RH immersion tube device according to claim 1, wherein The bottom of the moving plate (17) is fixedly connected with two springs (20), and the bottom end of the spring (20) is fixedly connected in the inner side of the fixed plate (8).

7. The argon flow stabilizing type RH immersion tube device according to claim 1, characterized by The inner side of the fixed plate (8) is provided with a sliding groove, the outer wall of the fixed rod (19) is slidably connected in the inner sliding groove of the fixed plate (8), the outer wall of the connecting pipe (9) is provided with two sliding grooves on both sides, and one end of the fixed rod (19) away from the rotating plate (18) is slidably connected in the outer wall sliding groove of the connecting pipe (9).

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