Burning-resistant belly pipe for blast furnace air supply device

Abstract

The utility model relates to the technical field of ironmaking blast furnace parts, and discloses a burning-resistant belly pipe for a blast furnace air supply device, which comprises a belly pipe main body, a pipeline I communicated with the inside of the belly pipe main body is fixedly mounted on the belly pipe main body, a mounting block is fixedly sleeved at the front end of the pipeline I, and an inner groove is formed in the front side surface of the mounting block; according to the burning-resistant belly pipe for the blast furnace air supply device, the outer surface of the sliding ball makes contact with the outer surface of the sliding plate and gives thrust to the sliding plate, in the process, a sliding cylinder is synchronously driven to give thrust to a flange, the flange is pushed backwards to be tightly attached to a rubber gasket, and therefore the burning-resistant belly pipe is used for blowing air to the blast furnace. The flange is fixed in the inner groove, the first pipeline and the second pipeline are installed and connected together, installation is convenient and flexible, tools are not needed, installation and disassembly are fast and labor-saving, then installation and disassembly of the belly pipe are facilitated, and the practicability of the burning-resistant belly pipe for the blast furnace air supply device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ironmaking blast furnace components, in particular to a fire-resistant direct-blowing pipe for a blast furnace air supply device. Background Art

[0002] The blast furnace air supply system is used to deliver high-temperature air and pulverized coal heated by the hot blast stove into the blast furnace. The blowpipe is the terminal component of the blast furnace air supply system. Typically, the blowpipe's main structure is conical, with a lance package on one side. The pipe body is constructed of a carbon steel shell, while the front end of the pipe utilizes a high-temperature-resistant stainless steel ball head. After the ball head and carbon steel shell are welded, a heat-insulating refractory layer is poured inside. The ball head of the blowpipe operates under conditions characterized by high wind temperature, high wind pressure, and high flow rate. However, this area is relatively small, the refractory layer is relatively thin, and the adhesion between the refractory layer and the ball head shell is relatively weak, making it the area most susceptible to damage and subject to the harshest working conditions.

[0003] Existing published patent: CN201820309954.4 A fire-resistant direct blowing pipe for a blast furnace air supply device, in which the outer port of the ball head shell is covered with a refractory material layer to isolate the hot air from directly blowing the ball head shell, thereby avoiding cracks in the connection between the refractory material layer and the ball head shell under the action of the hot air, resulting in falling off.

[0004] However, in this comparative example, the direct blowing pipe is connected to the blast furnace air supply device through a flange. As is known to all, the flange connection needs to be achieved by tightening multiple bolts, and tools such as wrenches are required in this process. Without tools, the installation cannot be performed by hand, which limits the installation and disassembly of the direct blowing pipe to tools and is more laborious, thereby reducing the practicality of the direct blowing pipe. Utility Model Content

[0005] (1) Technical problems solved

[0006] In response to the deficiencies in the prior art, the utility model provides a fire-resistant direct-blowing pipe for a blast furnace air supply device, which solves the problem in the comparative example that the direct-blowing pipe and the blast furnace air supply device are connected through a flange. As is well known, the flange connection needs to be achieved by tightening multiple bolts, and tools such as wrenches are required in this process. Without tools, the installation cannot be performed by hand, which limits the installation and disassembly of the direct-blowing pipe to tools and is more laborious, thereby reducing the practicality of the direct-blowing pipe.

[0007] (2) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fire-resistant direct blowing pipe for a blast furnace air supply device, comprising a direct blowing pipe body, on which a pipe communicating with the interior thereof is fixedly mounted;

[0009] Among them, the front end fixing sleeve of pipe one is provided with a mounting block;

[0010] The front surface of the mounting block is provided with an inner groove which is communicated with the interior of the pipe.

[0011] Among them, the outer surface of the mounting block is fixedly connected with four supporting blocks;

[0012] Among them, a disassembly mechanism is provided on the mounting block, which includes a fixing groove, a connecting plate, a sliding cylinder, a sliding plate, a positioning block, a threaded rod, a fixing plate, a sliding ball, a flange, a rubber gasket and pipe 2.

[0013] Preferably, the four support blocks are arranged in a mirror image, a rotating column is rotatably connected between two corresponding support blocks on the upper and lower sides, and two connecting plates are fixedly sleeved on the two rotating columns;

[0014] Among them, two fixing grooves are opened on the outer surface of the mounting block, the two fixing grooves are arranged in a mirror image, both of the two fixing grooves extend into the inner groove, and the fixing grooves extend out of the front side surface of the mounting block.

[0015] Preferably, the adjacent outer surfaces of the two connecting plates extend into the inner groove through two fixing grooves;

[0016] Wherein, the two sliding cylinders are fixedly connected to the outer surfaces of the two adjacent sides of the two connecting plates;

[0017] Wherein, the rubber gasket is fixedly connected to the rear inner wall of the inner groove.

[0018] Preferably, the rear end of the second pipe is fixedly sleeved with a flange, the flange is slidably connected to the inner groove, and the rear end of the second pipe extends into the inner groove;

[0019] The rear surface of the flange is in close contact with the rubber gasket;

[0020] Wherein, the two sliding plates are fixedly connected to the outer surfaces of the two connecting plates on both sides facing away from each other;

[0021] The two sliding plates are arranged in an inclined manner and are mirror-imaged.

[0022] Preferably, the outer surfaces of the two sliding cylinders are slidably connected to the front side surface of the flange;

[0023] Wherein, the two positioning blocks are fixedly connected to the outer surface of the mounting block;

[0024] Wherein, the two threaded rods are threadedly sleeved on the outer surfaces of the two positioning blocks.

[0025] Preferably, the two sliding balls are fixedly connected to the front ends of the two threaded rods, and the two sliding balls are slidably connected to the two sliding plates;

[0026] Wherein, the two fixing plates are fixedly connected to the rear ends of the two threaded rods;

[0027] Wherein, a sealing ring is fixedly sleeved on the inner wall of the inner groove.

[0028] (3) Beneficial effects

[0029] Compared with the prior art, the utility model provides a fire-resistant direct blowing pipe for a blast furnace air supply device, which has the following beneficial effects:

[0030] 1. The blast furnace air supply device uses a fire-resistant direct blowing pipe. The outer surface of the sliding ball contacts the outer surface of the sliding plate and gives the sliding plate a thrust. In this process, the sliding cylinder is simultaneously driven to give a thrust to the flange, pushing the flange backward to fit tightly against the rubber gasket, thereby fixing the flange in the inner groove, thereby installing and connecting pipe one and pipe two together. The installation is convenient and flexible, and no tools are required. The installation and disassembly are quick and labor-saving, thereby facilitating the installation and disassembly of the direct blowing pipe, thereby increasing the practicality of the fire-resistant direct blowing pipe for the blast furnace air supply device.

[0031] 2. The blast furnace air supply device uses a fire-resistant direct blowing pipe, and the sliding ball is spherical. The spherical sliding ball can reduce the friction with the sliding plate, thereby making it easier to rotate the fixed plate and the installation process of the direct blowing pipe faster and more labor-saving, thereby increasing the practicality of the fire-resistant direct blowing pipe for the blast furnace air supply device.

[0032] 3. The blast furnace air supply device uses a fire-resistant straight-blowing pipe, and the sliding cylinder is cylindrical in shape. The cylindrical sliding cylinder can reduce the friction between the sliding cylinder and the flange, thereby ensuring the stability of the sliding cylinder pushing the flange, thereby ensuring the stability of the installation connection between pipe one and pipe two. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic diagram of the overall structure of a fire-resistant direct-blowing pipe for a blast furnace air supply device of the utility model;

[0034] Figure 2 This is a schematic diagram of the installation block structure of the utility model;

[0035] Figure 3 This is a schematic diagram of the sliding plate structure of the utility model;

[0036] Figure 4 This is a cross-sectional view of the mounting block of the utility model.

[0037] In the figure: 1. Direct blowing pipe body; 2. Pipe 1; 3. Pipe 2; 4. Mounting block; 5. Fixing groove; 6. Support block; 7. Connecting plate; 8. Sliding cylinder; 9. Sliding plate; 10. Positioning block; 11. Threaded rod; 12. Fixing plate; 13. Sliding ball; 14. Inner groove; 15. Rubber gasket; 16. Flange. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] See also Figure 1-4 The utility model provides a new technical solution: a fire-resistant direct blowing pipe for a blast furnace air supply device, comprising a direct blowing pipe body 1, on which a pipe 2 communicating with the interior thereof is fixedly mounted;

[0040] Among them, the direct blowing pipe body 1 includes a carbon steel shell, a refractory material layer, a ball head shell, a first annular groove, a second annular groove, a hot air channel and a high-temperature coal injection through hole. The pipe 1 2 is connected to the inside of the high-temperature coal injection through hole. The direct blowing pipe body 1 is an existing patent: CN201820309954.4 A blast furnace air supply device in the existing technology of the burn-resistant direct blowing pipe, which will not be repeated here;

[0041] Among them, the front end fixed sleeve of pipe 1 2 is provided with a mounting block 4;

[0042] The front surface of the mounting block 4 is provided with an inner groove 14, which is communicated with the interior of the pipe 1 2;

[0043] Among them, four supporting blocks 6 are fixedly connected to the outer surface of the mounting block 4;

[0044] Among them, a disassembly mechanism is provided on the mounting block 4, which includes a fixing groove 5, a connecting plate 7, a sliding cylinder 8, a sliding plate 9, a positioning block 10, a threaded rod 11, a fixing plate 12, a sliding ball 13, a flange 16, a rubber gasket 15 and a pipe 2 3.

[0045] Furthermore, the four support blocks 6 are arranged in a mirror image, and a rotating column is rotatably connected between the two corresponding support blocks 6 on the upper and lower sides, and two connecting plates 7 are fixedly sleeved on the two rotating columns;

[0046] Two fixing grooves 5 are provided on the outer surface of the mounting block 4 . The two fixing grooves 5 are arranged in a mirror image. Both fixing grooves 5 extend into the inner groove 14 and extend out of the front surface of the mounting block 4 .

[0047] Furthermore, the adjacent outer surfaces of the two connecting plates 7 extend into the inner groove 14 through the two fixing grooves 5;

[0048] Among them, the two sliding cylinders 8 are fixedly connected to the outer surfaces of the two adjacent sides of the two connecting plates 7;

[0049] The rubber gasket 15 is fixedly connected to the rear inner wall of the inner groove 14 .

[0050] Furthermore, the rear end of the pipe 2 3 is fixedly sleeved with a flange 16, which is slidably connected to the inner groove 14, and the rear end of the pipe 2 3 extends into the inner groove 14;

[0051] The rear surface of the flange 16 is in close contact with the rubber gasket 15;

[0052] The two sliding plates 9 are fixedly connected to the outer surfaces of the two connecting plates 7 on both sides facing away from each other;

[0053] The two sliding plates 9 are arranged in an inclined manner and are mirror-imaged.

[0054] Furthermore, the outer surfaces of the two sliding cylinders 8 are slidably connected to the front surface of the flange 16;

[0055] Among them, two positioning blocks 10 are fixedly connected to the outer surface of the mounting block 4;

[0056] The two threaded rods 11 are threadedly sleeved on the outer surfaces of the two positioning blocks 10 .

[0057] Furthermore, two sliding balls 13 are fixedly connected to the front ends of the two threaded rods 11, and the two sliding balls 13 are slidably connected to the two sliding plates 9;

[0058] Among them, the two fixing plates 12 are fixedly connected to the rear ends of the two threaded rods 11;

[0059] The inner wall of the inner groove 14 is fixedly sleeved with a sealing ring.

[0060] Furthermore, when in use, the sliding plate 9 is rotated so that the sliding plate 9 drives itself, the sliding cylinder 8, and the connecting plate 7 to rotate with the rotating cylinder as the center. In this process, the sliding cylinder 8 is driven to move out of the inner groove 14. At this time, the flange 16 can be slid into the inner groove 14 so that the rear surface of the flange 16 is in contact with the rubber gasket 15. At this time, the sliding plate 9 is rotated again so that the sliding cylinder 8 is driven to slide into the inner groove 14 and contact the front surface of the flange 16. At this time, the fixed plate 12 is rotated again to drive the threaded rod 11 to rotate, and the rotation of the threaded rod 11 drives the sliding ball 13 When the sliding ball 13 moves forward, the outer surface of the sliding ball 13 contacts the outer surface of the sliding plate 9 and gives the sliding plate 9 a thrust. In this process, the sliding cylinder 8 is synchronously driven to give a thrust to the flange 16, pushing the flange 16 backward to fit tightly with the rubber gasket 15, thereby fixing the flange 16 in the inner groove 14, thereby connecting the pipe 1 2 and the pipe 2 3 together. The installation is convenient and flexible, and no tools are required. The installation and removal are quick and labor-saving, thereby facilitating the installation and removal of the direct blowing pipe, thereby increasing the practicality of the burn-resistant direct blowing pipe for the blast furnace air supply device.

[0061] Furthermore, in this solution, pipe 2 3 is a pipe that needs to be installed for the direct blow pipe in actual use;

[0062] Furthermore, in this embodiment, the sliding ball 13 is spherical in shape, which can reduce the friction between the sliding plate 9 and the sliding ball 13, thereby making it easier to rotate the fixed plate 12, making the installation process of the direct blowing pipe faster and more labor-saving, thereby increasing the practicality of the fire-resistant direct blowing pipe for the blast furnace air supply device;

[0063] Furthermore, in this solution, the sliding cylinder 8 is in a cylindrical shape. The cylindrical sliding cylinder 8 can reduce the friction between the sliding cylinder 8 and the flange 16, thereby ensuring the stability of the sliding cylinder 8 pushing the flange 16, thereby ensuring the stability of the installation connection between pipe 1 2 and pipe 2 3.

[0064] Working principle: When the device is used, by rotating the sliding plate 9, the sliding plate 9 drives itself, the sliding cylinder 8, and the connecting plate 7 to rotate with the rotating column as the center. In this process, the sliding cylinder 8 is driven to move out of the inner groove 14. At this time, the flange 16 can be slid into the inner groove 14 so that the rear surface of the flange 16 is in contact with the rubber gasket 15. At this time, the sliding plate 9 is rotated again, so that the sliding cylinder 8 is driven to slide into the inner groove 14 and contact the front surface of the flange 16. At this time, the fixed plate 12 is rotated again to drive the threaded rod 11 to rotate. The rotation of the threaded rod 11 drives The sliding ball 13 moves back and forth. When the sliding ball 13 moves forward, the outer surface of the sliding ball 13 contacts the outer surface of the sliding plate 9 and gives thrust to the sliding plate 9. In this process, the sliding cylinder 8 is synchronously driven to give thrust to the flange 16, pushing the flange 16 backward to fit tightly with the rubber gasket 15, thereby fixing the flange 16 in the inner groove 14, thereby installing and connecting pipe 1 2 and pipe 2 3 together. The installation is convenient and flexible, and no tools are required. The installation and disassembly are quick and labor-saving, thereby facilitating the installation and disassembly of the direct blowing pipe, thereby increasing the practicality of the fire-resistant direct blowing pipe for the blast furnace air supply device.

[0065] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

[0066] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0067] In the description of this utility model, terms such as "greater than," "less than," and "exceed" are understood to exclude the number indicated, while terms such as "above," "below," and "within" are understood to include the number indicated. The terms "first" and "second" are used solely to distinguish technical features and are not to be construed as indicating or implying relative importance, or as implicitly specifying the number or order of the technical features indicated.

[0068] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

Claims

1. A fire-resistant direct blowing pipe for a blast furnace air supply device, comprising a direct blowing pipe body (1), characterized in that: A pipe (2) communicating with the interior of the direct blowing pipe body (1) is fixedly mounted on the direct blowing pipe body (1); Wherein, the front end fixing sleeve of the pipe 1 (2) is provided with a mounting block (4); The front surface of the mounting block (4) is provided with an inner groove (14), and the inner groove (14) is communicated with the interior of the pipe (2); Wherein, four supporting blocks (6) are fixedly connected to the outer surface of the mounting block (4); The mounting block (4) is provided with a disassembly mechanism, which comprises a fixing groove (5), a connecting plate (7), a sliding cylinder (8), a sliding plate (9), a positioning block (10), a threaded rod (11), a fixing plate (12), a sliding ball (13), a flange (16), a rubber gasket (15) and a pipe (3).

2. The fire-resistant direct blowing pipe for a blast furnace air supply device according to claim 1, characterized in that: The four support blocks (6) are arranged in a mirror image, and a rotating column is rotatably connected between two corresponding support blocks (6) on the upper and lower sides, and two connecting plates (7) are fixedly sleeved on the two rotating columns; Two fixing grooves (5) are provided on the outer surface of the mounting block (4), the two fixing grooves (5) are arranged in a mirror image, both of the fixing grooves (5) extend into the inner groove (14), and the fixing grooves (5) extend out of the front side surface of the mounting block (4).

3. The fire-resistant direct blowing pipe for a blast furnace air supply device according to claim 2, characterized in that: The adjacent outer surfaces of the two connecting plates (7) extend into the inner groove (14) through the two fixing grooves (5); Wherein, the two sliding cylinders (8) are fixedly connected to the adjacent outer surfaces of the two connecting plates (7); Wherein, the rubber gasket (15) is fixedly connected to the rear inner wall of the inner groove (14).

4. The fire-resistant direct blowing pipe for a blast furnace air supply device according to claim 3, characterized in that: The rear end of the second pipe (3) is fixedly sleeved with a flange (16), the flange (16) is slidably connected to the inner groove (14), and the rear end of the second pipe (3) extends into the inner groove (14); wherein the rear surface of the flange (16) is in close contact with the rubber gasket (15); Wherein, the two sliding plates (9) are fixedly connected to the outer surfaces of the two connecting plates (7) on both sides facing away from each other; The two sliding plates (9) are arranged in an inclined manner, and the two sliding plates (9) are arranged in a mirror image manner.

5. The fire-resistant direct blowing pipe for a blast furnace air supply device according to claim 4, characterized in that: The outer surfaces of the two sliding cylinders (8) are slidably connected to the front side surface of the flange (16); Wherein, the two positioning blocks (10) are fixedly connected to the outer surface of the mounting block (4); The two threaded rods (11) are threadedly sleeved on the outer surfaces of the two positioning blocks (10).

6. The fire-resistant direct blowing pipe for a blast furnace air supply device according to claim 5, characterized in that: The two sliding balls (13) are fixedly connected to the front ends of the two threaded rods (11), and the two sliding balls (13) are slidably connected to the two sliding plates (9); Wherein, the two fixing plates (12) are fixedly connected to the rear ends of the two threaded rods (11); Wherein, the inner wall fixed sleeve of the inner groove (14) is provided with a sealing ring.

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