Single-channel coal-feeding coal injection gun of side-blowing reduction furnace

Abstract

The utility model relates to the technical field of coal injection guns, and discloses a single-channel coal injection gun of a side-blowing reduction furnace. The coal injection gun comprises an air inlet column, an anti-corrosion layer, a high-temperature-resistant layer, a waterproof layer, a connecting layer, a smooth surface, a connecting end, a connecting pipe, a first buffering ring, a fixing pipe, a second buffering ring, an elastic transition pipe, a coal injection nozzle, a sealing connecting position, a fixing button, a pushing block, a buffering rubber pad, a limiting block and a reset spring. The anti-corrosion layer is fixedly connected to the interior of the air inlet column, and the high-temperature-resistant layer is fixedly connected to the interior of the anti-corrosion layer. According to the coal injection gun for single-channel coal feeding of the side-blowing reduction furnace, the coal injection gun is improved, so that the movable adjusting capacity of the coal injection gun is improved, in the actual use process of the coal injection gun, the coal injection gun can be movably adjusted to a proper bending angle according to needs, single-channel coal feeding of the side-blowing reduction furnace is facilitated, and the coal injection gun is convenient to use. And the use experience of the single-channel coal feeding coal injection gun of the side-blowing reduction furnace is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal injection guns, in particular to a coal injection gun for conveying coal in a single channel of a side-blowing reduction furnace. Background Art

[0002] The coal injection gun is a new technology widely used in modern blast furnace ironmaking production for coal injection auxiliary fuel. At the same time, it is also one of the important means of regulating the furnace condition of modern blast furnaces. The coal injection gun for side-blown reduction furnace with single channel coal delivery is a coal injection gun for side-blown reduction furnace with single channel coal delivery.

[0003] The prior art patent document with publication number CN202022947U discloses a coal injection gun, wherein the gun head and the gun body are respectively made of steel pipes of different diameters, the diameter of the gun body is larger than the diameter of the gun head, wherein a transition structure is provided between the gun body and the gun head, one end of the transition structure is connected to the gun head, and the other end is connected to the gun body, the diameter of the transition structure is between the diameters of the gun body and the gun head, and the transition structure between the gun body and the gun head adopts multiple sections of transition steel pipes of different diameters, each section of the transition steel pipe is connected in sequence, and the diameter of each section of the transition steel pipe increases successively from the gun head to the gun body; or the transition structure adopts a section of transition steel pipe, and the diameter of the transition steel pipe increases successively along its length direction; or the transition structure adopts a section of transition steel pipe, and the diameter of the transition steel pipe remains unchanged along its length direction. Taking into account the actual use requirements and the simplicity of production, it is preferred that the transition structure adopts a section of transition steel pipe, whose diameter remains unchanged along its length direction, the gun head is made of a stainless steel pipe, and the gun body is made of a black steel pipe. The transition steel pipe is made of a black steel pipe, the diameter of the gun head is φ20-φ22mm, the diameter of the gun body is φ30-φ34mm, the diameter of the transition steel pipe is φ25-φ28mm, the diameter of the gun head is φ22mm, the diameter of the gun body is φ34mm, and the diameter of the transition structure is φ26mm. The preferred length of the gun head is 400mm, the length of the transition structure is 1200mm, the length of the gun body is 600mm, and the front end of the gun head is provided with a certain curvature, the bending angle is 10°~20°, and the bending length is 40~60mm. The preferred bending angle of the gun head is 15° and the bending length is 50 mm, so that the structural transition between the gun head and the gun body is smoother and more reasonable, thereby extending the service life of the coal injection gun and avoiding the reddening phenomenon of the gun head during use of the coal injection gun. In addition, the coal powder sprayed by the coal injection gun will not be sprayed on the air port sleeve, so the risk of coal powder wearing the air port sleeve is also greatly reduced.

[0004] However, due to the poor activity adjustment ability of the coal injection gun in the prior art CN202022947U patent, it is impossible to adjust the activity of the coal injection gun to a suitable bending angle as needed during the actual use of the coal injection gun, which is not convenient for single-channel coal feeding in the side-blowing reduction furnace, affecting the user experience of the coal injection gun. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] The utility model aims to provide a coal injection gun for feeding coal in a single channel of a side-blown reduction furnace, so as to solve the problem of poor activity adjustment capability of the coal injection gun in the above-mentioned background technology.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a coal injection gun for a side-blown reduction furnace with a single-channel coal feeding, the coal injection gun for a side-blown reduction furnace with a single-channel coal feeding comprises an air intake column, an anti-corrosion layer, a high-temperature resistant layer, a waterproof layer, a connecting layer, a smooth surface, a connecting end, a connecting pipe, a buffer ring 1, a fixed pipe, a buffer ring 2, an elastic transition pipe, a coal injection nozzle, a sealing connection, a fixed button, a push block, a buffer rubber pad, a limit block, a reset spring, a movable block and a strong spring, the anti-corrosion layer is fixedly connected to the inside of the air intake column, the high-temperature resistant layer is fixedly connected to the inside of the anti-corrosion layer, the waterproof layer is fixedly connected to the inside of the high-temperature resistant layer, the connecting layer is fixedly connected to the inside of the waterproof layer, the smooth surface is fixedly connected to the inside of the connecting layer, the connecting end is fixedly connected to the left end of the air intake column, the connecting pipe is fixedly connected to the left end of the connecting end, and the buffer ring 1 is fixedly connected to the right end of the air intake column.

[0009] Preferably, the fixed tube is fixedly connected to the right end of buffer ring one, and the buffer ring two is fixedly connected to the right end of the fixed tube. By improving the coal injection gun, the activity adjustment ability of the coal injection gun is improved. During the actual use of the coal injection gun, the activity of the coal injection gun can be adjusted to a suitable bending angle as needed, which is convenient for single-channel coal feeding in the side-blown reduction furnace, thereby improving the user experience of the coal injection gun with single-channel coal feeding in the side-blown reduction furnace.

[0010] Preferably, the elastic transition pipe is fixedly connected to the right end of the buffer ring 2, and the coal injection nozzle is fixedly connected to the right end of the elastic transition pipe. The fixed installation of the air intake column is facilitated by the installed connecting end and connecting pipe. Then, the protection capability of the coal injection gun for single-channel coal delivery in the side-blowing reduction furnace is improved by the installed anti-corrosion layer, high-temperature resistant layer and waterproof layer. Then, the working efficiency of the coal injection gun for single-channel coal delivery in the side-blowing reduction furnace is improved by the installed connecting layer and smooth surface.

[0011] Preferably, the sealing connection is fixedly connected to the right end of the elastic transition pipe, and the fixing button is fixedly connected to the upper end of the fixing pipe.

[0012] Preferably, the pushing block is fixedly connected to the lower end of the fixed button, and the buffer rubber pad is fixedly connected to the lower end of the pushing block. Through the use of buffer ring one, fixed tube and buffer ring two, the connection of the elastic transition pipe and the coal injection nozzle is facilitated, and then the coal injection gun for single-channel coal feeding in the side-blowing reduction furnace is adjusted to a suitable angle through the elastic transition pipe. Through the use of fixed button, pushing block, buffer rubber pad, limit block, reset spring, movable block and strong spring, the connection and fixing effect of the coal injection gun for single-channel coal feeding in the side-blowing reduction furnace is improved.

[0013] Preferably, the limit block is fixedly connected to the right end of the fixed button, and the return spring is fixedly connected to the lower end of the limit block.

[0014] Preferably, the movable block is movably connected to the lower side of the fixed button, and the strong spring is fixedly connected to the lower end of the movable block.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The coal injection gun for the side-blowing reduction furnace with single-channel coal feeding has improved activity adjustment capability through improvement of the coal injection gun. In the actual use of the coal injection gun, the activity of the coal injection gun can be adjusted to a suitable bending angle as needed, which is convenient for the side-blowing reduction furnace with single-channel coal feeding, thereby improving the use experience of the coal injection gun for the side-blowing reduction furnace with single-channel coal feeding;

[0017] 2. The coal injection gun for the single-channel coal delivery of the side-blowing reduction furnace facilitates the fixed installation of the air intake column through the installed connecting end and connecting pipe, and then improves the protection ability of the coal injection gun for the single-channel coal delivery of the side-blowing reduction furnace through the installed anti-corrosion layer, high temperature resistant layer, and waterproof layer, and then improves the working efficiency of the coal injection gun for the single-channel coal delivery of the side-blowing reduction furnace through the installed connecting layer and smooth surface;

[0018] 3. The coal injection gun for the side-blowing reduction furnace with single-channel coal delivery facilitates the connection of the elastic transition pipe and the coal injection nozzle through the use of buffer ring 1, fixed pipe and buffer ring 2. Then the coal injection gun for the side-blowing reduction furnace with single-channel coal delivery is adjusted to a suitable angle through the elastic transition pipe. The use of fixed buttons, push blocks, buffer rubber pads, limit blocks, reset springs, movable card blocks and strong springs improves the connection and fixing effect of the coal injection gun for the side-blowing reduction furnace with single-channel coal delivery. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the air intake column of the utility model;

[0021] Figure 3This is a schematic diagram of the structure of the second buffer ring of the utility model;

[0022] Figure 4 This is a schematic diagram of the fixed button structure of the utility model.

[0023] In the figure: 1. Intake column; 2. Anti-corrosion layer; 3. High temperature resistant layer; 4. Waterproof layer; 5. Connecting layer; 6. Smooth surface; 7. Connecting end; 8. Connecting pipe; 9. Buffer ring 1; 10. Fixed pipe; 11. Buffer ring 2; 12. Elastic transition pipe; 13. Coal nozzle; 14. Sealing connection; 15. Fixed button; 16. Push block; 17. Buffer rubber pad; 18. Limit block; 19. Reset spring; 20. Movable card block; 21. Power spring. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1-Figure 4 The utility model provides a technical solution: a coal injection gun for a side-blowing reduction furnace with a single channel for feeding coal, the coal injection gun for a side-blowing reduction furnace with a single channel for feeding coal comprises an air inlet column 1, an anti-corrosion layer 2, a high temperature resistant layer 3, a waterproof layer 4, a connecting layer 5, a smooth surface 6, a connecting end 7, a connecting pipe 8, a buffer ring 1 9, a fixed pipe 10, a buffer ring 2 11, an elastic transition pipe 12, a coal injection nozzle 13, a sealing connection 14, a fixed button 15, a push block 16, a buffer rubber pad 17, a limit block 18, a composite The positioning spring 19, the movable block 20 and the strong spring 21, the anti-corrosion layer 2 is fixedly connected to the inside of the air intake column 1, the high temperature resistant layer 3 is fixedly connected to the inside of the anti-corrosion layer 2, the waterproof layer 4 is fixedly connected to the inside of the high temperature resistant layer 3, the connecting layer 5 is fixedly connected to the inside of the waterproof layer 4, the smooth surface 6 is fixedly connected to the inside of the connecting layer 5, the connecting end 7 is fixedly connected to the left end of the air intake column 1, the connecting pipe 8 is fixedly connected to the left end of the connecting end 7, and the buffer ring 9 is fixedly connected to the right end of the air intake column 1.

[0026] The fixed pipe 10 is fixedly connected to the right end of the buffer ring 1 9, the buffer ring 2 11 is fixedly connected to the right end of the fixed pipe 10, the elastic transition pipe 12 is fixedly connected to the right end of the buffer ring 2 11, the coal nozzle 13 is fixedly connected to the right end of the elastic transition pipe 12, the sealing connection 14 is fixedly connected to the right end of the elastic transition pipe 12, and the fixed button 15 is fixedly connected to the upper end of the fixed pipe 10. The fixed installation of the air intake column 1 is facilitated by the installed connecting end 7 and connecting pipe 8, and then the protection capability of the coal injection gun for single-channel coal delivery in the side-blown reduction furnace is improved by the installed anti-corrosion layer 2, high-temperature resistant layer 3, and waterproof layer 4. Then, the working efficiency of the coal injection gun for single-channel coal delivery in the side-blown reduction furnace is improved by the installed connecting layer 5 and smooth surface 6.

[0027] The pushing block 16 is fixedly connected to the lower end of the fixed button 15, the buffer rubber pad 17 is fixedly connected to the lower end of the pushing block 16, the limit block 18 is fixedly connected to the right end of the fixed button 15, the return spring 19 is fixedly connected to the lower end of the limit block 18, the movable clamping block 20 is movably connected to the lower side of the fixed button 15, and the strong spring 21 is fixedly connected to the lower end of the movable clamping block 20. Through the use of the buffer ring 1 9, the fixed tube 10, and the buffer ring 2 11, the connection of the elastic transition pipe 12 and the coal injection nozzle 13 is facilitated, and then the coal injection gun for the single-channel coal feeding of the side-blowing reduction furnace is adjusted to a suitable angle through the elastic transition pipe 12. Through the use of the fixed button 15, the pushing block 16, the buffer rubber pad 17, the limit block 18, the return spring 19, the movable clamping block 20 and the strong spring 21, the connection and fixing effect of the coal injection gun for the single-channel coal feeding of the side-blowing reduction furnace is improved.

[0028] Working principle: through the installed connecting end 7 and connecting pipe 8, the fixed installation of the air intake column 1 is facilitated, and then through the installed anti-corrosion layer 2, high temperature resistant layer 3, and waterproof layer 4, the protection ability of the coal injection gun for single-channel coal delivery in the side-blowing reduction furnace is improved, and then through the installed connecting layer 5 and smooth surface 6, the working efficiency of the coal injection gun for single-channel coal delivery in the side-blowing reduction furnace is improved, and through the use of buffer ring 1 9, fixed pipe 10, and buffer ring 2 11, the connection of the elastic transition pipe 12 and the coal injection nozzle 13 is facilitated, and then through the elastic transition pipe 12, the coal injection gun for single-channel coal delivery in the side-blowing reduction furnace is adjusted to a suitable angle, and through the use of the fixed button 15, the push block 16, the buffer rubber pad 17, the limit block 18, the reset spring 19, the movable block 20 and the strong spring 21, the connection and fixing effect of the coal injection gun for single-channel coal delivery in the side-blowing reduction furnace is improved.

[0029] Finally, it should be noted that the above content is only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Simple modifications or equivalent substitutions of the technical solution of the utility model by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the utility model.

Claims

1. A coal injection gun for a side-blowing reduction furnace with a single-channel coal feeding, the coal injection gun for a side-blowing reduction furnace with a single-channel coal feeding comprises an air intake column (1), an anti-corrosion layer (2), a high temperature resistant layer (3), a waterproof layer (4), a connecting layer (5), a smooth surface (6), a connecting end (7), a connecting pipe (8), a buffer ring 1 (9), a fixed pipe (10), a buffer ring 2 (11), an elastic transition pipe (12), a coal injection nozzle (13), a sealing connection (14), a fixed button (15), a push block (16), a buffer rubber pad (17), a limit block (18), a reset spring (19), a movable block (20) and a strong spring (21), characterized in that: The anti-corrosion layer (2) is fixedly connected to the inside of the air intake column (1), the high temperature resistant layer (3) is fixedly connected to the inside of the anti-corrosion layer (2), the waterproof layer (4) is fixedly connected to the inside of the high temperature resistant layer (3), the connecting layer (5) is fixedly connected to the inside of the waterproof layer (4), the smooth surface (6) is fixedly connected to the inside of the connecting layer (5), the connecting end (7) is fixedly connected to the left end of the air intake column (1), the connecting pipe (8) is fixedly connected to the left end of the connecting end (7), and the buffer ring (9) is fixedly connected to the right end of the air intake column (1).

2. The coal injection gun for feeding coal in a single channel of a side-blown reduction furnace according to claim 1, characterized in that: The fixed tube (10) is fixedly connected to the right end of the buffer ring 1 (9), and the buffer ring 2 (11) is fixedly connected to the right end of the fixed tube (10).

3. The coal injection gun for feeding coal in a single channel of a side-blown reduction furnace according to claim 2, characterized in that: The elastic transition pipe (12) is fixedly connected to the right end of the second buffer ring (11), and the coal injection nozzle (13) is fixedly connected to the right end of the elastic transition pipe (12).

4. The coal injection gun for feeding coal in a single channel of a side-blown reduction furnace according to claim 3, characterized in that: The sealing connection (14) is fixedly connected to the right end of the elastic transition tube (12), and the fixing button (15) is fixedly connected to the upper end of the fixing tube (10).

5. The coal injection gun for feeding coal in a single channel of a side-blown reduction furnace according to claim 4, characterized in that: The pushing block (16) is fixedly connected to the lower end of the fixed button (15), and the buffer rubber pad (17) is fixedly connected to the lower end of the pushing block (16).

6. The coal injection gun for feeding coal in a single channel of a side-blown reduction furnace according to claim 5, characterized in that: The limit block (18) is fixedly connected to the right end of the fixed button (15), and the return spring (19) is fixedly connected to the lower end of the limit block (18).

7. The coal injection gun for feeding coal in a single channel of a side-blown reduction furnace according to claim 6, characterized in that: The movable clamping block (20) is movably connected to the lower side of the fixed button (15), and the strong spring (21) is fixedly connected to the lower end of the movable clamping block (20).

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