Air duct structure of air blower for blast furnace

Abstract

The utility model relates to the technical field of blower air ducts, and provides a blower air duct structure for a blast furnace, which comprises an air duct component and an air inlet pipe, and the air duct component comprises an air supply pipe, a first flange plate, a second flange plate and a fixing bolt. The protective structure is arranged, the damping material layer is arranged on the outer side of the air inlet pipe, under the action of the damping material layer, the preliminary heat preservation and sound insulation effect is achieved, the PVC bandage is arranged on the outer side of the damping material layer, under the action of the PVC bandage, the outer side of the air inlet pipe is wrapped with heat preservation and sound insulation materials, and the sound insulation effect can be enhanced; the anti-corrosion layer is actually a polyurethane layer, is a high-quality anti-corrosion material and has the excellent performance of heat preservation, fire prevention, corrosion prevention, pressure resistance and the like, under the action of the anti-corrosion layer, the situation that the noise reduction effect is affected due to the fact that the PVC bandage is corroded is avoided, the function of facilitating noise reduction of the device is achieved, and therefore the applicability of the air blower air duct structure for the blast furnace in the using process is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of blower air ducts, in particular to a blower air duct structure for a blast furnace. Background Art

[0002] The blast furnace blower is an indispensable equipment in steel production. It is mainly used to provide the required oxygen for the blast furnace to promote the combustion process in the blast furnace. It can also form a suitable temperature and atmosphere in the blast furnace to ensure the smooth production of steel. The air duct is the pipe between the blower and the air outlet. The blower blows air into the blast furnace through the air duct. In order to make the fuel burn fully, a blast furnace blower air duct structure is used.

[0003] The existing blast furnace blower air duct structure is inconvenient to reduce noise during use. When air flows in the air duct, it will arouse vibration noise of the air duct, which is easy to affect the living environment, making it less suitable for use. Utility Model Content

[0004] The utility model aims to provide an air duct structure for a blast furnace blower, so as to solve the defect that the existing air duct structure for a blast furnace blower is inconvenient to reduce noise.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a blast furnace blower air duct structure, comprising an air duct assembly and an air inlet pipe;

[0006] The air duct assembly includes an air supply pipe, a first flange, a second flange and fixing bolts, wherein the first flange is fixed to one end of the air supply pipe, the second flange is arranged on one side of the first flange, fixing bolts are evenly penetrated inside the first flange and the second flange, and a fixing structure is arranged on one side of the second flange close to the inside of the first flange;

[0007] An air inlet pipe is fixed to one side of the second flange, and a connecting plate is fixed to one end of the air inlet pipe;

[0008] A high temperature resistant layer is arranged on the inner side of the air inlet pipe, and a protective structure is arranged on the outer side of the air inlet pipe. The protective structure includes an anti-corrosion layer, a PVC bandage and a damping material layer. The damping material layer is arranged on the outer side of the air inlet pipe.

[0009] When the device is used, the protective structure is provided to achieve the noise reduction function of the device, thereby improving the applicability of the blast furnace blower duct structure when in use; the fixed structure is provided to achieve the sealing function of the device, thereby improving the convenience of the blast furnace blower duct structure when in use.

[0010] Preferably, the first flange is fixedly connected to the second flange by fixing bolts, and the high temperature resistant layer is actually an aluminum oxide layer. Under the action of the high temperature resistant layer, the air inlet pipe can maintain strength and hardness at high temperatures, so that the air inlet pipe is not easily deformed when heated.

[0011] Preferably, the outer wall of the damping material layer is provided with a PVC bandage, and the outer wall of the PVC bandage is provided with an anti-corrosion layer. The damping material layer is provided on the outer side of the air inlet pipe, and under the action of the damping material layer, it plays a preliminary role of heat preservation and sound insulation. The PVC bandage is provided on the outer side of the damping material layer, and under the action of the PVC bandage, not only the heat preservation and sound insulation material is wrapped on the outer side of the air inlet pipe, but also the sound insulation effect can be enhanced.

[0012] Preferably, the inner wall of the damping material layer is fixedly connected to the outer wall of the air inlet pipe, and the anti-corrosion layer is actually a polyurethane layer. The anti-corrosion layer is actually a polyurethane layer, which is a high-quality anti-corrosion material and has excellent properties such as heat preservation, fire prevention, corrosion resistance, and pressure resistance. Under the action of the anti-corrosion layer, the PVC bandage is prevented from being corroded, thereby affecting the noise reduction effect.

[0013] Preferably, the fixing structure includes a placement groove, a limiting groove, a limiting column, a rubber block and a sealing ring. The placement groove is arranged on one side of the second flange plate, and a sealing ring is arranged inside the placement groove. Limiting grooves are opened at both ends of one side of the sealing ring inside the second flange plate, and limiting columns are arranged inside the limiting grooves, and rubber blocks are fixed at both ends of the limiting columns.

[0014] Preferably, one end of the limiting column is fixedly connected to one side of the sealing ring, and the inner diameter of the sealing ring is smaller than the inner diameter of the second flange. Since the inner diameter of the sealing ring is smaller than the inner diameter of the second flange, it is convenient to remove the sealing ring for replacement, move the sealing ring to the inside of the placement groove, push the sealing ring, and the sealing ring drives the limiting column to move to the inside of the limiting groove, and the limiting column drives the rubber block to move to the inside of the clamping groove.

[0015] Preferably, a clamping groove is provided inside the second flange on one side of the rubber block, and the rubber block and the second flange form a clamping structure through the clamping groove, thereby fixing the sealing ring and the second flange to each other, and the sealing ring plays a role in sealing and preventing leakage.

[0016] The utility model provides a blast furnace blower air duct structure, which has the advantages of:

[0017] By setting up a protective structure, a damping material layer is set on the outside of the air inlet pipe. Under the action of the damping material layer, it plays a preliminary role of heat preservation and sound insulation. A PVC bandage is set on the outside of the damping material layer. Under the action of the PVC bandage, not only the heat preservation and sound insulation material is wrapped on the outside of the air inlet pipe, but also the sound insulation effect can be enhanced. The anti-corrosion layer is actually a polyurethane layer, which is a high-quality anti-corrosion material and has excellent properties such as heat preservation, fire prevention, corrosion resistance and pressure resistance. Under the action of the anti-corrosion layer, the PVC bandage is prevented from being corroded to affect the noise reduction effect, and the function of the device to facilitate noise reduction is realized, thereby improving the applicability of the duct structure of the blast furnace blower when in use;

[0018] By setting a fixed structure, the sealing ring is moved to the inside of the placement groove, and the sealing ring is pushed. The sealing ring drives the limiting column to move to the inside of the limiting groove, and the limiting column drives the rubber block to move to the inside of the clamping groove, so that the sealing ring and the second flange are fixed to each other. Under the action of the sealing ring, the sealing and leakage prevention functions are achieved, and the function of facilitating sealing of the device is realized, thereby improving the convenience of the air duct structure of the blast furnace blower when in use. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0021] Figure 3 For the utility model Figure 2 The enlarged structural diagram at A in the middle;

[0022] Figure 4 It is a schematic diagram of a partial cross-sectional structure of the protective structure of the utility model;

[0023] Figure 5 It is a schematic diagram of the explosion three-dimensional structure of the utility model;

[0024] Explanation of the reference numerals in the figure: 1. Air duct assembly; 101. Air supply pipe; 102. First flange; 103. Second flange; 104. Fixing bolt; 2. Air inlet pipe; 3. Protective structure; 301. Anti-corrosion layer; 302. PVC bandage; 303. Damping material layer; 4. Connecting plate; 5. Fixing structure; 501. Placement groove; 502. Limiting groove; 503. Limiting column; 504. Rubber block; 505. Sealing ring; 6. High temperature resistant layer. DETAILED DESCRIPTION

[0025] 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.

[0026] See also Figure 1-Figure 5 The utility model provides an air duct structure for a blast furnace blower, comprising an air duct assembly 1 and an air inlet pipe 2. The air duct assembly 1 comprises an air supply pipe 101, a first flange 102, a second flange 103 and fixing bolts 104. The first flange 102 is fixed to one end of the air supply pipe 101, and the second flange 103 is arranged on one side of the first flange 102. The fixing bolts 104 are evenly penetrated inside the first flange 102 and the second flange 103. A fixing structure 5 is arranged on one side of the second flange 103 close to the inside of the first flange 102. The fixing structure 5 comprises a placement groove 501, a limiting groove 502, a limiting column 503, a rubber block 504 and a sealing ring 505. The placement groove 501 is arranged in the second flange 103. On one side of the part, a sealing ring 505 is arranged inside the placement groove 501, and limiting grooves 502 are provided at both ends of the sealing ring 505 on one side of the second flange 103, and limiting columns 503 are provided inside the limiting grooves 502. Rubber blocks 504 are fixed at both ends of the limiting columns 503, and one end of the limiting columns 503 is fixedly connected to one side of the sealing ring 505. The inner diameter of the sealing ring 505 is smaller than the inner diameter of the second flange 103. A clamping groove is provided inside the second flange 103 on one side of the rubber block 504, and the rubber block 504 and the second flange 103 form a clamping structure through the clamping groove. The first flange 102 is fixedly connected to the second flange 103 by fixing bolts 104, and the high temperature resistant layer 6 is actually an aluminum oxide layer.

[0027] Reference Figure 2 and Figure 3 As shown, the sealing ring 505 is moved to the inside of the placement groove 501, and the sealing ring 505 is pushed. The sealing ring 505 drives the limiting column 503 to move to the inside of the limiting groove 502, and the limiting column 503 drives the rubber block 504 to move to the inside of the clamping groove, so that the sealing ring 505 and the second flange 103 are fixed to each other. Under the action of the sealing ring 505, a sealing and leakage prevention effect is played. The high temperature resistant layer 6 is actually an aluminum oxide layer. Under the action of the high temperature resistant layer 6, the air inlet pipe 2 can maintain strength and hardness at high temperature, so that the air inlet pipe 2 is not easily deformed when heated.

[0028] An air inlet pipe 2 is fixed to one side of the second flange 103, a connecting plate 4 is fixed to one end of the air inlet pipe 2, a high temperature resistant layer 6 is arranged on the inner side of the air inlet pipe 2, a protective structure 3 is arranged on the outer side of the air inlet pipe 2, the protective structure 3 includes an anti-corrosion layer 301, a PVC bandage 302 and a damping material layer 303, the damping material layer 303 is arranged on the outer side of the air inlet pipe 2, the outer wall of the damping material layer 303 is provided with a PVC bandage 302, the outer wall of the PVC bandage 302 is provided with an anti-corrosion layer 301, the inner wall of the damping material layer 303 is fixedly connected to the outer wall of the air inlet pipe 2, and the anti-corrosion layer 301 is actually a polyurethane layer.

[0029] Reference Figure 2 and Figure 4 As shown, a damping material layer 303 is arranged on the outside of the air inlet pipe 2. Under the action of the damping material layer 303, it plays a preliminary role of thermal insulation and sound insulation. A PVC bandage 302 is arranged on the outside of the damping material layer 303. Under the action of the PVC bandage 302, not only the thermal insulation and sound insulation material is wrapped on the outside of the air inlet pipe 2, but also the sound insulation effect is enhanced. The anti-corrosion layer 301 is actually a polyurethane layer, which is a high-quality anti-corrosion material and has excellent properties such as thermal insulation, fire prevention, corrosion resistance and pressure resistance. Under the action of the anti-corrosion layer 301, the PVC bandage 302 is prevented from being corroded, thereby affecting the noise reduction effect.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A blast furnace blower air duct structure, comprising an air duct assembly (1) and an air inlet pipe (2); Features: The air duct assembly (1) comprises an air supply pipe (101), a first flange (102), a second flange (103) and fixing bolts (104); the first flange (102) is fixed to one end of the air supply pipe (101); a second flange (103) is arranged on one side of the first flange (102); fixing bolts (104) are uniformly passed through the interior of the first flange (102) and the second flange (103); and a fixing structure (5) is arranged on a side of the second flange (103) close to the interior of the first flange (102); An air inlet pipe (2) is fixed to one side of the second flange (103), and a connecting plate (4) is fixed to one end of the air inlet pipe (2); A high temperature resistant layer (6) is arranged on the inner side of the air inlet pipe (2), and a protective structure (3) is arranged on the outer side of the air inlet pipe (2), wherein the protective structure (3) comprises an anti-corrosion layer (301), a PVC bandage (302) and a damping material layer (303), and the damping material layer (303) is arranged on the outer side of the air inlet pipe (2).

2. The blast furnace blower air duct structure according to claim 1, characterized in that: The first flange (102) is fixedly connected to the second flange (103) via fixing bolts (104), and the high temperature resistant layer (6) is actually an aluminum oxide layer.

3. The blast furnace blower air duct structure according to claim 1, characterized in that: The outer side wall of the damping material layer (303) is provided with a PVC bandage (302), and the outer side wall of the PVC bandage (302) is provided with an anti-corrosion layer (301).

4. The blast furnace blower air duct structure according to claim 3, characterized in that: The inner wall of the damping material layer (303) is fixedly connected to the outer wall of the air inlet pipe (2), and the anti-corrosion layer (301) is actually a polyurethane layer.

5. The blast furnace blower air duct structure according to claim 1, characterized in that: The fixing structure (5) comprises a placement groove (501), a limiting groove (502), a limiting column (503), a rubber block (504) and a sealing ring (505); the placement groove (501) is arranged on one side inside the second flange (103); a sealing ring (505) is arranged inside the placement groove (501); limiting grooves (502) are provided at both ends of one side of the sealing ring (505) inside the second flange (103); limiting columns (503) are provided inside the limiting grooves (502); and rubber blocks (504) are fixed at both ends of the limiting columns (503).

6. The blast furnace blower air duct structure according to claim 5, characterized in that: One end of the limiting column (503) is fixedly connected to one side of the sealing ring (505), and the inner diameter of the sealing ring (505) is smaller than the inner diameter of the second flange (103).

7. The blast furnace blower air duct structure according to claim 5, characterized in that: A clamping groove is provided inside the second flange (103) on one side of the rubber block (504), and the rubber block (504) and the second flange (103) form a clamping structure through the clamping groove.

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