Nitrogen control device for refining furnace

Abstract

The utility model relates to the technical field of nitrogen control devices for refining furnaces, and discloses a nitrogen control device for a refining furnace, which comprises a bottom plate, a support frame is fixedly connected onto the bottom plate, first anti-explosion metal nets are fixedly connected to the back surface, the top surface and the right side of the support frame, and second anti-explosion metal nets are hinged to the front surface and the left side of the support frame. A fixing base is fixedly connected to the bottom plate, a groove is formed in the bottom plate, an L-shaped inserting plate is slidably connected into the groove, a window is formed in the position, between the fixing base and the groove, of the bottom plate, and a plurality of rotating mechanisms arranged at equal intervals are rotationally connected to the inner wall of the window. Fixing assemblies used for fixing the second anti-explosion metal net are fixedly connected to the front face and the left side of the supporting frame, and the nitrogen control device is located on the rotating mechanism and located between the L-shaped inserting plate and the fixing base. The explosion-proof metal net I and the explosion-proof metal net II are arranged on the outer side of the nitrogen making machine, so that the nitrogen making machine is protected, and fragments generated by explosion of the nitrogen making machine are prevented from hurting workers.

Description

Technical Field

[0001] The utility model relates to the technical field of nitrogen control devices for refining furnaces, and specifically relates to a nitrogen control device for refining furnaces. Background Art

[0002] The nitrogen control device for a refining furnace makes nitrogen through a nitrogen generator, and blows the nitrogen into the molten steel from the bottom of the ladle. The nitrogen generator uses air as raw material and separates oxygen and nitrogen therein by physical methods to obtain nitrogen. The nitrogen generator uses an adsorbent to separate air at normal temperature by the principle of pressure swing adsorption to produce high-purity nitrogen, controls the pneumatic valve to run automatically, and alternately performs pressure swing adsorption and pressure relief regeneration to complete nitrogen-oxygen separation and obtain the required high-purity nitrogen.

[0003] When the nitrogen generator is transported, it shakes due to the bumps of the transport carriage, which easily causes damage to the nitrogen generator. And during the working process of the nitrogen generator, due to various reasons, there will also be a situation where the safety performance of the nitrogen generator during operation is insufficient, which further leads to the problem of explosion due to insufficient strength of the nitrogen generator itself. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a nitrogen control device for a refining furnace, which can fix and protect the nitrogen generator and ensure the safety of the staff.

[0005] The utility model provides the following technical solutions: A nitrogen control device for a refining furnace, including a bottom plate, a support frame is fixedly connected to the bottom plate, explosion-proof metal nets I are fixedly connected to the back, top and right side of the support frame, explosion-proof metal nets II are hinged to the front and left side of the support frame respectively, a fixed seat is fixedly connected to the bottom plate, a groove is opened on the bottom plate, an L-shaped insertion plate is slidably connected in the groove, a window is opened on the bottom plate between the fixed seat and the groove, a plurality of rotating mechanisms arranged at equal intervals are rotatably connected to the inner wall of the window, fixing components for fixing the explosion-proof metal net II are fixedly connected to the front and left side of the support frame respectively, the nitrogen control device is located on the rotating mechanism and between the L-shaped insertion plate and the fixed seat.

[0006] Further, the fixed seat includes a U-shaped fixing plate fixedly connected to the bottom plate, and guide plates inclined outwards are fixedly connected to both ends of the U-shaped fixing plate.

[0007] Further, the lower end of the L-shaped insertion plate is provided with a rounded corner, and a rubber pad is fixedly connected to the back of the L-shaped insertion plate.

[0008] Further, the rotating mechanism includes a rotating shaft rotatably connected to the inner wall of the window, and a roller is fixedly connected to the rotating shaft.

[0009] Further, three fixing components are provided on the left side of the support frame, two fixing components are provided on the right side of the support frame, and the fixing components are staggered with each other.

[0010] Further, the fixing component includes an L-shaped support plate fixedly connected to the support frame. A connecting rod is fixedly connected between the L-shaped support plate and the support frame, and a limiting plate is rotatably connected to the connecting rod.

[0011] Compared with the prior art, the present utility model has the following beneficial effects:

[0012] For the nitrogen control device for the refining furnace, by providing a rotating mechanism on the bottom plate, it is convenient for the staff to move the nitrogen generator and make the nitrogen generator abut against the fixed seat. By inserting the L-shaped insertion plate into the groove on the bottom plate, the nitrogen generator can be fixed. And outside the nitrogen generator, an explosion-proof metal net one and an explosion-proof metal net two are installed on the support frame to protect the nitrogen generator. It can not only protect the nitrogen generator from being damaged by external objects, but also prevent the explosion debris from flying everywhere after the nitrogen generator fails and explodes, ensuring the safety of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a three-dimensional structural schematic diagram of the whole of the present utility model;

[0014] Figure 2 is a three-dimensional structural schematic diagram inside the connection frame of the present utility model;

[0015] Figure 3 is a three-dimensional structural schematic diagram of the fixed seat of the present utility model;

[0016] Figure 4 is Figure 2 an enlarged view of A in the above;

[0017] Figure 5 is Figure 2 an enlarged view of B in the above.

[0018] In the figure: 1, bottom plate; 2, support frame; 3, explosion-proof metal net one; 4, explosion-proof metal net two; 5, fixed seat; 501, U-shaped fixing plate; 502, guide plate; 6, groove; 7, L-shaped insertion plate; 8, window; 9, rubber pad; 10, rotating shaft; 11, roller; 12, L-shaped support plate; 13, connecting rod; 14, limiting plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0020] Please refer to Figures 1 to 5 , a nitrogen control device for a refining furnace, including a bottom plate 1, a support frame 2 is fixedly connected to the bottom plate 1, explosion-proof metal nets one 3 are fixedly connected to the back, top and right side of the support frame 2, explosion-proof metal nets two 4 are hinged to the front and left side of the support frame 2 respectively, a fixed seat 5 is fixedly connected to the bottom plate 1, a groove 6 is opened on the bottom plate 1, an L-shaped insertion plate 7 is slidably connected in the groove 6, a window 8 is opened on the bottom plate 1 between the fixed seat 5 and the groove 6, and a number of rotation mechanisms arranged at equal intervals are rotatably connected to the inner wall of the window 8. Fixing components for fixing the explosion-proof metal net two 4 are fixedly connected to the front and left side of the support frame 2 respectively. The nitrogen control device is located on the rotation mechanism and between the L-shaped insertion plate 7 and the fixed seat 5.

[0021] As Figures 1 to 5 shown, when the nitrogen control device for a refining furnace in the present utility model is in use, first release the restriction of the fixing component on the explosion-proof metal net two 4 hinged to the left and right sides of the support frame 2, so that the explosion-proof metal net two 4 can rotate, thereby opening the left and front sides of the support frame 2, so as to facilitate placing the nitrogen generator on the bottom plate 1. During the process of placing the nitrogen generator, the staff first takes out the L-shaped insertion plate 7 from the groove 6, then places the nitrogen generator on the roller 11 of the rotation mechanism, and pushes the nitrogen generator inward so that the nitrogen generator contacts the fixed seat 5. The guiding plate 502 on the fixed seat 5 is used to guide the nitrogen generator, so that the nitrogen generator can quickly slide into the U-shaped fixing plate 501. The side surface of the nitrogen generator is attached to the inner surface of the U-shaped fixing plate 501, and then the L-shaped insertion plate 7 is inserted into the groove 6 again to clamp and fix the nitrogen generator. At this time, the explosion-proof metal net two 4 hinged on the left and front sides of the support frame 2 can be closed, and the limiting plate 14 is rotated so that the limiting plate 14 is attached to the frame of the fixed explosion-proof metal net two 4, so that the hinged explosion-proof metal net two 4 no longer rotates, so that the explosion-proof metal net one 3 and the explosion-proof metal net two 4 cover the front, back, left side, right side and top of the support frame 2, thereby protecting the nitrogen generator from being damaged by external objects, and also preventing the explosion debris from flying everywhere after the nitrogen generator fails and explodes, ensuring the safety of the staff.

[0022] As Figure 2 or Figure 3 shown, the fixed seat 5 includes a U-shaped fixing plate 501 fixedly connected to the bottom plate 1, and guiding plates 502 inclined outward are fixedly connected to both ends of the U-shaped fixing plate 501.

[0023] Specifically, place the nitrogen generator on the drum 11 of the rotating mechanism, and push the nitrogen generator inward so that it contacts the fixed seat 5. The guide plate 502 on the fixed seat 5 is used to guide the nitrogen generator, enabling the nitrogen generator to quickly slide into the U-shaped fixing plate 501. The side surface of the nitrogen generator is attached to the inner surface of the U-shaped fixing plate 501, and then insert the L-shaped insertion plate 7 back into the groove 6 to clamp and fix the nitrogen generator.

[0024] As Figure 4 shown, the lower end of the L-shaped insertion plate 7 is provided with a rounded corner, and a rubber pad 9 is fixedly connected to the back surface of the L-shaped insertion plate 7.

[0025] Specifically, the lower end of the L-shaped insertion plate 7 is provided with a rounded corner to facilitate the quick insertion of the L-shaped insertion plate 7 into the groove 6. The rubber pad 9 is used to increase the friction between the L-shaped insertion plate 7 and the nitrogen generator, and can also reduce the damage caused by the extrusion of the L-shaped insertion plate 7 to the nitrogen generator.

[0026] As Figure 4 shown, the rotating mechanism includes a rotating shaft 10 rotatably connected to the inner wall of the window 8, and a drum 11 is fixedly connected to the rotating shaft 10.

[0027] Specifically, place the nitrogen generator on the drum 11. Whether pushing the nitrogen generator inward or pulling it outward, when the drum 11 rotates with the rotating shaft 10, it is convenient to move the nitrogen generator, thereby saving the physical strength of the staff and improving work efficiency.

[0028] As Figure 2 shown, three fixing components are provided on the left side of the support frame 2, and two fixing components are provided on the right side of the support frame 2, and the fixing components are arranged staggered with each other.

[0029] Specifically, the three fixing components provided on the left side of the support frame 2 are used to fix the explosion-proof metal net two 4 hinged on the left side of the support frame 2. The two fixing components provided on the right side of the support frame 2 are used to fix the explosion-proof metal net two 4 hinged on the front of the support frame 2. These fixing components are arranged staggered with each other to avoid influencing each other, so that when rotating the limiting plate 14 on any one of the fixing components, it will not affect other fixing components.

[0030] As Figure 5 shown, the fixing component includes an L-shaped support plate 12 fixedly connected to the support frame 2. A connecting rod 13 is fixedly connected between the L-shaped support plate 12 and the support frame 2, and a limiting plate 14 is rotatably connected to the connecting rod 13.

[0031] Specifically, close the explosion-proof metal net two 4 hinged on the left side and the front side of the support frame 2, and rotate the limit plate 14 so that the limit plate 14 is in contact with the frame border of the fixed explosion-proof metal net two 4, thereby preventing the hinged explosion-proof metal net two 4 from rotating. In this way, the explosion-proof metal net one 3 and the explosion-proof metal net two 4 cover the front side, back side, left side, right side and top surface of the support frame 2, thus protecting the nitrogen generator from being damaged by external objects. Also, it can prevent the debris from flying everywhere after an explosion occurs due to a nitrogen generator failure, ensuring the safety of the staff. By performing the opposite operation, the explosion-proof metal net two 4 hinged on the left side of the support frame 2 and the explosion-proof metal net two 4 hinged on the front side of the support frame 2 can be opened, and the nitrogen generator can be taken down, or only the explosion-proof metal net two 4 hinged on the front side of the support frame 2 can be opened to adjust the data of the nitrogen generator.

[0032] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A nitrogen control device for a refining furnace, comprising a bottom plate (1), characterized in that: The bottom plate (1) is fixedly connected to a support frame (2); the back surface, top surface and right side of the support frame (2) are fixedly connected to a first explosion-proof metal mesh (3); the front surface and left side of the support frame (2) are hingedly connected to a second explosion-proof metal mesh (4); the bottom plate (1) is fixedly connected to a fixing seat (5); the bottom plate (1) is provided with a groove (6); an L-shaped plug plate (7) is slidably connected in the groove (6); a window (8) is provided on the bottom plate (1) between the fixing seat (5) and the groove (6); a plurality of rotating mechanisms arranged at equal intervals are rotatably connected to the inner wall of the window (8); fixing components for fixing the second explosion-proof metal mesh (4) are fixedly connected to the front surface and left side of the support frame (2); and the nitrogen control device is located on the rotating mechanism and between the L-shaped plug plate (7) and the fixing seat (5).

2. The nitrogen control device for a refining furnace according to claim 1, characterized in that: The fixing seat (5) comprises a U-shaped fixing plate (501) fixedly connected to the bottom plate (1), and both ends of the U-shaped fixing plate (501) are fixedly connected to guide plates (502) inclined outwards.

3. A nitrogen control device for a refining furnace according to claim 1 or 2, characterized in that: The lower end of the L-shaped plug plate (7) is provided with a rounded corner, and the back side of the L-shaped plug plate (7) is fixedly connected with a rubber pad (9).

4. A nitrogen control device for a refining furnace according to claim 1 or 2, characterized in that: The rotating mechanism comprises a rotating shaft (10) rotatably connected to the inner wall of the window (8), and a roller (11) is fixedly connected to the rotating shaft (10).

5. The nitrogen control device for a refining furnace according to claim 3, characterized in that: The rotating mechanism comprises a rotating shaft (10) rotatably connected to the inner wall of the window (8), and a roller (11) is fixedly connected to the rotating shaft (10).

6. A nitrogen control device for a refining furnace according to claim 1, 2 or 5, characterized in that: Three fixing components are arranged on the left side of the support frame (2), and two are arranged on the right side of the support frame (2), and the fixing components are arranged alternately with each other.

7. The nitrogen control device for a refining furnace according to claim 3, characterized in that: Three fixing components are arranged on the left side of the support frame (2), and two are arranged on the right side of the support frame (2), and the fixing components are arranged alternately with each other.

8. The nitrogen control device for a refining furnace according to claim 4, characterized in that: Three fixing components are arranged on the left side of the support frame (2), and two are arranged on the right side of the support frame (2), and the fixing components are arranged alternately with each other.

9. A nitrogen control device for a refining furnace according to claim 7 or 8, characterized in that: The fixing assembly comprises an L-shaped support plate (12) fixedly connected to the support frame (2), a connecting rod (13) fixedly connected between the L-shaped support plate (12) and the support frame (2), and a limit plate (14) rotatably connected to the connecting rod (13).

10. The nitrogen control device for a refining furnace according to claim 6, characterized in that: The fixing assembly comprises an L-shaped support plate (12) fixedly connected to the support frame (2), a connecting rod (13) fixedly connected between the L-shaped support plate (12) and the support frame (2), and a limit plate (14) rotatably connected to the connecting rod (13).

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