Blast furnace coal injection branch pipe anti-blocking device

Abstract

The utility model relates to the technical field of anti -blocking device, concretely is a blast furnace coal injection branch pipe anti -blocking device, including the connecting pipe and motor, the inner side wall top fixed connection of connecting pipe has the fixed plate, the outer side wall bottom of fixed plate is connected with the rotation lever through the sealed bearing rotation, the left end fixed connection of rotation lever has the rotary seat, the even fixed connection of rotary seat's outer side wall has the dispersing rod. The utility model drives the driving bevel gear, driven bevel gear and rotation lever to rotate through motor work, and rotation lever drives rotary seat and dispersing rod fast rotation, can scatter the caked coal powder when the coal powder enters the coal injection branch pipe, simultaneously, and the rotation lever drives the connecting rod and the scraper lever to rotate when rotating, can repeatedly scrape the coal powder of coal injection branch pipe inner wall, prevent the coal powder accumulation, avoid causing the blockage, and the hot air that the electric heating tube blows down can dry the coal powder with the help of the blower fan cooperation, further reduce the risk that the coal powder caking blocks, reduce the time that the pipeline dredges to stop operation, improved work efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of anti-blocking devices, specifically an anti-blocking device for blast furnace pulverized coal injection branch pipes. Background Technology

[0002] Pulverized coal injection in blast furnaces is an equipment system used for coal storage, preparation, transportation, and injection in iron and steel smelting. By injecting pulverized coal into the blast furnace to replace part of the coke, it reduces production costs and optimizes furnace conditions. The process is divided into two modes: direct injection (integration of pulverization and injection systems) and indirect injection (pulverized coal transported by tank truck / pipeline), which are suitable for steel enterprises of different sizes.

[0003] However, in applications, coal ash or slag often accumulates in the pipeline after coal injection, causing blockages. Over time, this necessitates frequent shutdowns for pipeline dredging, reducing work efficiency. To address this, a blast furnace coal injection branch pipe anti-blockage device is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a blast furnace pulverized coal injection branch pipe anti-blocking device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a blast furnace pulverized coal injection branch pipe anti-clogging device, comprising a connecting pipe and a motor. A fixing plate is fixedly connected to the top of the inner wall of the connecting pipe. A rotating rod is rotatably connected to the bottom of the outer wall of the fixing plate via a sealed bearing. A rotating seat is fixedly connected to the left end of the rotating rod. Dispersing rods are uniformly fixedly connected to the outer wall of the rotating seat. A connecting rod is uniformly welded to the right side of the outer wall of the rotating rod. A scraper is fixedly connected to the end of the connecting rod away from the rotating rod. One end of the output shaft of the motor extends into the interior of the connecting pipe and is fixedly connected to a connecting shaft. A driving bevel gear is fixedly connected to the bottom end of the connecting shaft. A driven bevel gear is fixedly connected to the outer wall of the rotating rod. The driven bevel gear meshes with the driving bevel gear. A slot is provided on the left side of the upper surface of the connecting pipe. A wind box is provided on the inner wall of the slot. Electric heating tubes are uniformly installed on the top of the inner wall of the wind box. Blowing fans are uniformly installed on the upper surface of the wind box.

[0006] As a further preferred embodiment of this technical solution: a filter plate is screwed to the bottom of the air box.

[0007] As a further preferred embodiment of this technical solution: a mounting bracket is fixedly connected to the right side of the upper surface of the connecting pipe, and the top of the motor is mounted on the inner side wall of the mounting bracket.

[0008] As a further preferred embodiment of this technical solution: a connecting block is fixedly connected to the right side wall of the bellows, and a locking hole is provided on the right side wall of the connecting block.

[0009] As a further preferred embodiment of this technical solution: a vertical plate is fixedly connected to the upper surface of the connecting pipe near the mounting bracket, a locking pin is slidably connected to the outer wall of the vertical plate, a circular plate is fixedly connected to the right end of the locking pin, and a spring is fixedly connected between the circular plate and the opposite side of the vertical plate.

[0010] As a further preferred embodiment of this technical solution: a handle is fixedly connected to the upper surface of the circular plate.

[0011] As a further preferred embodiment of this technical solution: a control panel is installed on the front surface of the air box, and the electrical output terminal of the control panel is electrically connected to the electrical input terminal of the motor, the heating element and the blower through wires.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention utilizes a motor to drive a driving bevel gear, a driven bevel gear, and a rotating rod. The rotating rod drives a rotating seat and a dispersing rod to rotate rapidly, which can break up clumps of coal powder when it enters the coal injection branch pipe. Simultaneously, the rotation of the rotating rod drives the connecting rod and scraper to rotate, repeatedly scraping off coal powder from the inner wall of the coal injection branch pipe, preventing coal powder accumulation and blockage. Furthermore, the hot air blown by the fan and electric heating tube can dry the coal powder, further reducing the risk of coal powder clumping and blockage, minimizing downtime for pipeline clearing, and improving work efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the connecting pipe and the bellows in this utility model;

[0016] Figure 3 This is a cross-sectional view of the connecting pipe in this utility model;

[0017] Figure 4 This is a cross-sectional view of the air box in this utility model;

[0018] Figure 5 In this utility model Figure 2 Enlarged view of the structure of area A;

[0019] Figure 6 This is a schematic diagram of the structure of the air box and filter plate in this utility model.

[0020] In the picture:

[0021] 1. Connecting pipe; 2. Fixing plate; 3. Rotating rod; 4. Rotating seat; 5. Dispersing rod; 6. Connecting rod; 7. Scraper rod; 8. Motor; 9. Mounting bracket; 10. Connecting shaft; 11. Driven bevel gear; 12. Slot; 13. Air box; 14. Heating element; 15. Fan; 16. Filter plate; 17. Connecting block; 18. Locking hole; 19. Vertical plate; 20. Locking pin; 21. Circular plate; 22. Spring; 23. Handle; 24. Control panel; 25. Driving bevel gear. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "equipment" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0024] Please see Figure 1-6This utility model provides a technical solution: a blast furnace pulverized coal injection branch pipe anti-blocking device, including a connecting pipe 1 and a motor 8. A fixing plate 2 is fixedly connected to the top of the inner side wall of the connecting pipe 1. A rotating rod 3 is rotatably connected to the bottom of the outer side wall of the fixing plate 2 through a sealed bearing. A rotating seat 4 is fixedly connected to the left end of the rotating rod 3. Dispersing rods 5 are uniformly fixedly connected to the outer side wall of the rotating seat 4. A connecting rod 6 is uniformly welded to the right side of the outer side wall of the rotating rod 3. A scraper 7 is fixedly connected to the end of the connecting rod 6 away from the rotating rod 3. One end of the output shaft of the motor 8 extends into the interior of the connecting pipe 1 and is fixedly connected to a connecting shaft 10. A driving bevel gear 25 is fixedly connected to the bottom end of the connecting shaft 10. A driven bevel gear 11 is fixedly connected to the outer side wall of the rotating rod 3. The driven bevel gear 11 meshes with the driving bevel gear 25. A slot 12 is provided on the left side of the upper surface of the connecting pipe 1. The inner wall is equipped with a bellows 13, and electric heating tubes 14 are evenly installed on the top of the inner wall of the bellows 13. Fans 15 are evenly installed on the upper surface of the bellows 13. The connecting pipe 1 is connected to the inlet end of the pulverized coal injection branch pipe through a flange. During the operation of the blast furnace pulverized coal injection system, the motor 8 drives the active bevel gear 25, the driven bevel gear 11 and the rotating rod 3 to rotate. The rotating rod 3 drives the rotating seat 4 and the dispersing rod 5 to rotate rapidly, which can disperse the lumps of pulverized coal when the pulverized coal enters the pulverized coal injection branch pipe. At the same time, when the rotating rod 3 rotates, it drives the connecting rod 6 and the scraper 7 to rotate, which can repeatedly scrape off the pulverized coal on the inner wall of the pulverized coal injection branch pipe to prevent the pulverized coal from accumulating and causing blockage. In addition, the hot air blown down by the fan 15 and the electric heating tubes 14 can dry the pulverized coal, further reducing the risk of pulverized coal lumps and blockage, reducing the time for stopping operation to clear the pipeline, and improving work efficiency.

[0025] In this embodiment, specifically: a filter plate 16 is screwed to the bottom of the air box 13; the filter plate 16 can reduce the amount of coal dust entering the air box 13, and the screws of the filter plate 16 are detachable, making it easy to remove and clean.

[0026] In this embodiment, specifically: a mounting bracket 9 is fixedly connected to the right side of the upper surface of the connecting pipe 1, and the top of the motor 8 is mounted on the inner side wall of the mounting bracket 9.

[0027] In this embodiment, specifically: a connecting block 17 is fixedly connected to the right side wall of the bellows 13, and a locking hole 18 is provided on the right side wall of the connecting block 17; so that the connecting block 17 and the bellows 13 can move synchronously.

[0028] In this embodiment, specifically: a vertical plate 19 is fixedly connected to the side of the upper surface of the connecting pipe 1 near the mounting bracket 9; a locking pin 20 is slidably connected to the outer wall of the vertical plate 19; a circular plate 21 is fixedly connected to the right end of the locking pin 20; and a spring 22 is fixedly connected between the circular plate 21 and the opposite side of the vertical plate 19. Pulling the circular plate 21 to the right stretches the spring 22, inserting the bellows 13 into the slot 12. When the locking pin 20 is aligned with the locking hole 18, release the circular plate 21. The spring 22 shortens, causing the locking pin 20 to insert into the locking hole 18, thus locking the bellows 13. Similarly, when it is necessary to remove the bellows 13 to clean the filter plate 16, simply pull the circular plate 21 to the right again to release the lock on the bellows 13.

[0029] In this embodiment, specifically: a handle 23 is fixedly connected to the upper surface of the circular plate 21; this facilitates the movement of the circular plate 21.

[0030] In this embodiment, specifically: a control panel 24 is installed on the front surface of the bellows 13, and the electrical output terminal of the control panel 24 is electrically connected to the electrical input terminal of the motor 8, the heating element 14 and the blower 15 through wires; so as to facilitate the control of the working status of each electrical device.

[0031] The working principle of this utility model is as follows: the motor 8 drives the active bevel gear 25, the driven bevel gear 11, and the rotating rod 3 to rotate. The rotating rod 3 drives the rotating seat 4 and the dispersing rod 5 to rotate rapidly, which can disperse the clumps of coal powder when it enters the coal injection branch pipe. At the same time, the rotation of the rotating rod 3 drives the connecting rod 6 and the scraper 7 to rotate, which can repeatedly scrape off the coal powder on the inner wall of the coal injection branch pipe to prevent coal powder accumulation and blockage. In addition, the hot air blown by the fan 15 and the electric heating tube 14 can dry the coal powder, further reducing coal powder clumping and blockage. This reduces the risk of interrupting operations and the time spent on pipeline dredging, thus improving work efficiency. When installing the air box 13, pull the circular plate 21 to the right to lengthen the spring 22 and insert the air box 13 into the slot 12. When the locking pin 20 is aligned with the locking hole 18, release the circular plate 21. The spring 22 will shorten and drive the locking pin 20 into the locking hole 18, thus locking the air box 13. Similarly, when it is necessary to remove the air box 13 to clean the filter plate 16, simply pull the circular plate 21 to the right again to release the lock on the air box 13.

[0032] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for preventing blockage in blast furnace pulverized coal injection branch pipes, characterized in that: The device includes a connecting pipe (1) and a motor (8). A fixing plate (2) is fixedly connected to the top of the inner wall of the connecting pipe (1). A rotating rod (3) is rotatably connected to the bottom of the outer wall of the fixing plate (2) via a sealed bearing. A rotating seat (4) is fixedly connected to the left end of the rotating rod (3). A dispersing rod (5) is uniformly fixedly connected to the outer wall of the rotating seat (4). A connecting rod (6) is uniformly welded to the right side of the outer wall of the rotating rod (3). A scraper (7) is fixedly connected to the end of the connecting rod (6) away from the rotating rod (3). One end of the output shaft of the motor (8) extends into the connecting pipe. 1) An internal connecting shaft (10) is fixedly connected to the bottom of the connecting shaft (10), and a driving bevel gear (25) is fixedly connected to the bottom end of the connecting shaft (10). A driven bevel gear (11) is fixedly connected to the outer wall of the rotating rod (3). The driven bevel gear (11) meshes with the driving bevel gear (25). A slot (12) is provided on the left side of the upper surface of the connecting pipe (1). A bellows (13) is provided on the inner side wall of the slot (12). Electric heating tubes (14) are evenly installed on the top of the inner side wall of the bellows (13). A blower (15) is evenly installed on the upper surface of the bellows (13).

2. The blast furnace pulverized coal injection branch pipe anti-blocking device according to claim 1, characterized in that: The bottom of the air box (13) is screwed to a filter plate (16).

3. The blast furnace pulverized coal injection branch pipe anti-blocking device according to claim 2, characterized in that: A mounting bracket (9) is fixedly connected to the right side of the upper surface of the connecting pipe (1), and the top of the motor (8) is mounted on the inner side wall of the mounting bracket (9).

4. The blast furnace pulverized coal injection branch pipe anti-blocking device according to claim 3, characterized in that: A connecting block (17) is fixedly connected to the right side wall of the bellows (13), and a locking hole (18) is provided on the right side wall of the connecting block (17).

5. The blast furnace pulverized coal injection branch pipe anti-blocking device according to claim 4, characterized in that: A vertical plate (19) is fixedly connected to the upper surface of the connecting pipe (1) near the mounting bracket (9). A locking pin (20) is slidably connected to the outer wall of the vertical plate (19). A round plate (21) is fixedly connected to the right end of the locking pin (20). A spring (22) is fixedly connected between the round plate (21) and the opposite side of the vertical plate (19).

6. The blast furnace pulverized coal injection branch pipe anti-clogging device according to claim 5, characterized in that: A handle (23) is fixedly connected to the upper surface of the circular plate (21).

7. The blast furnace pulverized coal injection branch pipe anti-blocking device according to claim 6, characterized in that: The front surface of the bellows (13) is equipped with a control panel (24), and the electrical output terminal of the control panel (24) is electrically connected to the electrical input terminal of the motor (8), the electric heating tube (14) and the blower (15) through wires.

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