Device for releasing critical atmosphere of protector

Abstract

The utility model belongs to the technical field of protectors, and particularly relates to a protector atmosphere critical issuing device which comprises a protector body, the protector body is a hollow annular body, and the center of the annular body is provided with a vertically-through circular hollow cavity. A plurality of through holes distributed at equal intervals are formed in the protector body in the circumferential direction of the protector body, air injection assemblies are installed at the through holes of the protector body, and each air injection assembly comprises a protection cylinder fixedly connected to the corresponding through hole of the protector body. The exhaust pipe capable of rotating rapidly is arranged on the protector, the exhaust pipe drives the gas outlet cover and the gas outlet pipes to rotate when rotating, the gas outlet pipes are obliquely arranged on the gas outlet cover, inert gas can be evenly and fully sprayed to the position above the liquid level when rotating, the critical value of the atmosphere of the protector is easy to control, and the safety of the protector is improved. The problem that the protection effect is poor due to the fact that inert gas is sprayed unevenly in an existing device is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of protectors, in particular to a device for protecting a critical atmosphere of a protector. Background Art

[0002] In the field of metal smelting, metal electroslag furnaces (also known as electroslag remelting furnaces) are usually used. Electroslag furnaces are a type of metallurgical equipment that uses the resistance heat generated when electric current passes through molten slag as a heat source for smelting. Its structure mainly includes a crystallizer that is overall furnace-shaped, a column located on one side of the crystallizer, a transverse cantilever is arranged above the column, and an electrode rod extending downward into the crystallizer is installed on the transverse cantilever, facing the crystallizer against the electrode rod clamp. In order to ensure the atmosphere protection effect of the crystallizer liquid surface, patent announcement number CN201410770320.5 discloses a metal electroslag remelting smelting atmosphere protection method, which greatly improves the atmosphere protection effect by arranging a protector on the electrode rod, and the protector sprays inert gas for protection near the crystallizer liquid surface, thereby ensuring the smelting effect of the device.

[0003] In this scheme, the inert gas is discharged by opening an air outlet on the protector, so that the inert gas can only be discharged to the top of the crystallizer liquid surface in a straight line. The inert gas cannot be sprayed on the top of the liquid surface in a large area and evenly, and it is difficult to control the critical value of the protector atmosphere. Therefore, the atmosphere protection effect of the crystallizer liquid surface is not good enough, and the protection effect is poor. There are certain defects and shortcomings, and therefore, it needs to be improved. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a device for controlling the critical value of the atmosphere in a protector. A rapidly rotatable exhaust pipe is arranged on the protector. When the exhaust pipe rotates, the exhaust hood and the exhaust pipe are driven to rotate. A plurality of exhaust pipes are arranged obliquely on the exhaust hood. When rotating, the inert gas can be evenly and fully spread above the liquid surface, which makes it easy to control the critical value of the atmosphere in the protector, thus solving the problem of uneven spraying of the inert gas in the current device, resulting in poor protection effect.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0008] A device for protecting a critical atmosphere, comprising a protector body, wherein the protector body is a hollow annular body, and a circular hollow cavity penetrating up and down is arranged at the center of the annular body, the protector body is provided with a plurality of through holes distributed at equal intervals along the circumferential direction of the protector body, and a jet assembly is installed at the through holes of the protector body, the jet assembly comprises a protective cylinder fixedly connected to the through holes of the protector body, and an exhaust pipe rotatably connected to the protective cylinder, one end of the exhaust pipe is connected to an outlet hood, and the outlet hood is connected to a plurality of inclined outlet pipes.

[0009] Furthermore, a bearing with clearance fit is provided at the connection between the protective tube and the exhaust pipe.

[0010] Furthermore, the other end of the exhaust pipe extends to the inner side of the protector body and is fixed with an air collecting hood, a support frame is fixed on the inner side of the air collecting hood, and a fan blade is provided on a circular seat fixed on one side of the support frame, and a plurality of fan blades are provided.

[0011] Furthermore, an air intake pipe is connected to an air intake joint arranged on one side of the protector body.

[0012] (III) Beneficial effects

[0013] Compared with the prior art, the utility model provides a device for protecting the critical atmosphere of the device, which has the following beneficial effects:

[0014] The utility model provides a plurality of through holes on a protector body, and jet assemblies are installed at the through holes of the protector body. The jet assembly comprises a rotatable exhaust pipe, and an air outlet hood and an air collecting hood respectively arranged at two ends of the exhaust pipe, wherein the air outlet hood is connected with a plurality of inclined blowing pipes. When the inside of the protector body is filled with inert gas, the inert gas will enter the air collecting hood, drive the fan blades and the circular seat in the air collecting hood to rotate, and then make the exhaust pipe rotate quickly on the protective tube, drive the air outlet hood and the air outlet pipe to rotate quickly, so that the inert gas can be evenly sprayed above the liquid surface. Compared with the direct blowing method, the spraying method is more uniform, and the liquid is fully and evenly sprayed on the liquid surface, thereby forming a better protection effect, and it is also more convenient to control the critical value of the protector atmosphere, and the use effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the jet assembly in the utility model.

[0017] In the figure: 1. Protector body; 2. Circular hollow cavity; 3. Inlet pipe; 4. Inlet joint; 5. Jet assembly; 501. Protective tube; 502. Exhaust pipe; 503. Exhaust cover; 504. Exhaust pipe; 505. Air collecting cover; 506. Support frame; 507. Circular seat; 508. Fan blades. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Example

[0020] like Figure 1 and Figure 2 As shown, a device for protecting a critical atmosphere of a protector proposed in an embodiment of the utility model comprises a protector body 1, the protector body 1 is a hollow annular body, and a circular hollow cavity 2 penetrating from top to bottom is arranged at the center of the annular body, the protector body 1 is provided with a plurality of through holes distributed equidistantly along the circumferential direction of the protector body 1, and a jet assembly 5 is installed at each of the through holes of the protector body 1, the jet assembly 5 comprises a protective cylinder 501 fixedly connected to the through hole of the protector body 1, and an exhaust pipe 502 rotatably connected to the protective cylinder 501, one end of the exhaust pipe 502 is connected to an air outlet hood 503, and the air outlet hood 503 is connected to a plurality of inclined air outlet pipes 504;

[0021] It should be noted that the protector body 1 is arranged above the liquid level of the crystallizer, and a protective atmosphere is realized by spraying inert gas, thereby forming a safe protection effect on the liquid level. The center of the protector body 1 is a circular hollow cavity 2, which is convenient for its adaptation on the electrode rod. By opening a plurality of through holes in the circumferential direction of the protector body 1, it is convenient to spray the inert gas. By installing a jet assembly 5 at the through hole of the protector body 1, the inert gas is evenly sprayed above the liquid level by means of the jet assembly 5. By setting a protective tube 501, the protective tube 50 1. The outer side protection of the exhaust pipe 502 is realized, and the stable rotation of the exhaust pipe 502 is realized. By arranging a gas outlet hood 503 at one end of the exhaust pipe 502, and connecting a plurality of inclined gas outlet pipes 504 on the gas outlet hood 503, the inert gas is ejected through the inclined gas outlet pipes 504. When the exhaust pipe 502 rotates, the gas outlet hood 503 and the gas outlet pipes 504 are driven to rotate, and then the inert gas can be evenly sprayed above the liquid surface, the spraying is more even, the protective atmosphere is better, it is easier to control the critical value of the protector atmosphere, and the use effect is good.

[0022] like Figure 2 As shown, in some embodiments, a bearing with clearance fit is provided at the connection between the protective tube 501 and the exhaust pipe 502;

[0023] It should be noted that the provision of the bearing can achieve stable rotation of the exhaust pipe 502 on the protective tube 501 .

[0024] like Figure 2 As shown, in some embodiments, the other end of the exhaust pipe 502 extends to the inner side of the protector body 1 and is fixed with an air collecting cover 505, a support frame 506 is fixed to the inner side of the air collecting cover 505, and a fan blade 508 is provided on a circular seat 507 fixed on one side of the support frame 506, and a plurality of fan blades 508 are provided;

[0025] It should be noted that the gas collecting hood 505, the support frame 506, the circular seat 507, and the arrangement of the circular seat 507 can realize the rotation driving effect of the exhaust pipe 502. When the inner side of the protector body 1 is filled with inert gas, the inert gas will enter the gas collecting hood 505, and enter the exhaust pipe 502 through the gas collecting hood 505. When the inert gas enters the gas collecting hood 505, the inert gas will blow the fan blades 508, causing the fan blades 508 to rotate, and then the exhaust pipe 502 will rotate on the protective tube 501, realizing the rotation effect of the exhaust pipe 504. This method can rotate the exhaust pipe 502 and the outlet pipe 504 without the help of external force, so that the exhaust and rotation of the outlet pipe 504 can be carried out simultaneously. During exhaust, the inert gas can be evenly sprayed above the liquid surface to ensure the protective atmosphere of the protector and protect the liquid surface. The fan blade 508 is fixed on the circular seat 507, the circular seat 507 is fixed on the support frame 506, and the support frame 506 is fixed on the gas collecting hood 505. Therefore, when air flows through, a self-rotation effect will be formed, driving the exhaust pipe 502 to rotate on the protective tube 501.

[0026] like Figure 1 As shown, in some embodiments, an air intake joint 4 provided at one side of the protector body 1 is connected to an air intake pipe 3;

[0027] It should be noted that the setting of the air intake connector 4 can realize the connection of the air intake pipe 3. The other end of the air intake pipe 3 can be connected to an air pump. The air pump introduces the inert gas into the air intake pipe 3, and then enters the inner side of the protector body 1 through the air intake pipe 3 and the air intake connector 4, thereby realizing the air supply function of the inert gas.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A device for protecting a critical atmosphere, comprising a protector body (1), characterized in that: The protector body (1) is a hollow annular body, and a circular hollow cavity (2) penetrating from top to bottom is provided at the center of the annular body. The protector body (1) is provided with a plurality of through holes distributed at equal intervals along the circumferential direction of the protector body (1), and a jet assembly (5) is installed at each of the through holes of the protector body (1). The jet assembly (5) comprises a protective tube (501) fixedly connected to the through hole of the protector body (1), and an exhaust pipe (502) rotatably connected to the protective tube (501), one end of the exhaust pipe (502) is connected to an exhaust hood (503), and the exhaust hood (503) is connected to a plurality of inclined exhaust pipes (504).

2. The device for protecting the critical atmosphere of the protective device according to claim 1, characterized in that: A bearing with clearance fit is provided at the connection between the protective cylinder (501) and the exhaust pipe (502).

3. The device for protecting the critical atmosphere of the protective device according to claim 1, characterized in that: The other end of the exhaust pipe (502) extends to the inner side of the protector body (1) and is fixed with an air collecting hood (505), a support frame (506) is fixed on the inner side of the air collecting hood (505), and a fan blade (508) is arranged on a circular seat (507) fixed on one side of the support frame (506), and a plurality of the fan blades (508) are arranged.

4. The device for protecting the critical atmosphere of the protective device according to claim 1, characterized in that: An air intake joint (4) provided on one side of the protector body (1) is connected to an air intake pipe (3).

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