Steel ladle bottom blowing channel cleaning device

Abstract

The utility model provides a steel ladle bottom blowing channel cleaning device which relates to the technical field of steel ladle bottom cleaning and comprises a device base frame and a steel ladle bottom outer frame, a horizontal base is arranged on the lower side of the device base frame, a horizontal table is arranged at the upper end of the device base frame, and an X-axis linear guide rail is arranged on the upper end face of the horizontal table. A steel ladle bottom outer frame is movably arranged on the X-axis linear guide rail in a left-right moving mode, a fire body lifting assembly is installed on the upper portion of the steel ladle bottom outer frame, a positioning column is arranged in the middle of a lifting plate, a positioning sleeve is arranged under the positioning column, and a fire body lifting and moving left-right structure is arranged in the middle of the steel ladle bottom outer frame. And a fire gun body is movably arranged in the fire body lifting and moving left-right structure. The flame gun can be stably and flexibly moved, so that the flame gun head can perform high-temperature cleaning on steel slag blocking a bottom blowing channel of a steel ladle according to a preset moving and swinging range, and high stability, high precision, high efficiency, rapidness and practicability are realized.

Description

Technical Field

[0001] This utility model relates to the field of steel ladle bottom cleaning technology, specifically to a steel ladle bottom blowing channel cleaning device. Background Technology

[0002] The cleaning of the bottom blowing channel of molten steel in the steelmaking process requires the cooperation of multiple workers in a harsh working environment with high temperatures and high dust density, which seriously affects the health of the operators.

[0003] The description of a ladle long nozzle slag cleaning and argon blowing protection device (publication number CN209157113U) mentions that "one end of the stainless steel tube is sealed, and the other end is provided with an external thread; the port cap is provided with an internal thread, and the internal thread matches the external thread; a first stainless steel thin tube and a second stainless steel thin tube are embedded in the sealed end of the stainless steel tube, and both the first and second stainless steel thin tubes are connected to the inside of the stainless steel tube; a control valve is provided on the portion of the first and second stainless steel thin tubes located on the outside of the stainless steel tube, and the control valve is movably connected to the first and second stainless steel thin tubes; an air blowing pipe is embedded in the other end of the port cap corresponding to the internal thread, one end of the air blowing pipe extends into the inside of the stainless steel tube, and the other end is a flexible end." However, the cleaning of the ladle bottom channel in the prior art is not smooth, and the movement direction is not flexible, affecting the accuracy and speed of cleaning the blowing channel, and is not fast, convenient, or practical. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, a cleaning device for the bottom blowing channel of molten steel ladle is provided to solve the problems of the existing technology, such as the unsmooth cleaning of the bottom blowing channel, the inflexible movement direction, which affects the accuracy and speed of the blowing channel cleaning, and the lack of speed, convenience and practicality.

[0005] To achieve the above objectives, a cleaning device for the bottom blowing channel of a molten steel ladle is provided, comprising a device base frame and a molten steel ladle bottom outer frame. A horizontal base is provided on the lower side of the device base frame, and a water platform is provided on the upper end of the device base frame. An X-axis linear guide rail is provided on the upper surface of the water platform, and the molten steel ladle bottom outer frame is movable left and right on the X-axis linear guide rail. A fire body lifting assembly is installed on the upper part of the molten steel ladle bottom outer frame, and a lifting plate is provided on the lower part of the fire body lifting assembly. A positioning column is provided in the middle of the lifting plate, and a positioning sleeve is provided directly below the positioning column. A fire body lifting and moving left and right structure is provided in the middle of the molten steel ladle bottom outer frame, and a fire gun body is movably installed in the fire body lifting and moving left and right structure.

[0006] Furthermore, anti-collision components are provided at both ends of the X-axis linear guide, and springs and rubber damping blocks are provided on the inner side of each anti-collision component.

[0007] Furthermore, the right side of the outer frame of the ladle bottom on the X-axis linear guide is the initial position of the flame gun before it starts working, and the left side of the outer frame of the ladle bottom on the X-axis linear guide is the flame gun's working and firing position.

[0008] Furthermore, a base is provided at the lower part of the outer frame of the molten steel ladle, and a pulley is provided on the lower end face of the base, and the pulley rolls on the X-axis linear guide rail.

[0009] Furthermore, a third shaft pin is provided on the upper side of the lifting and moving structure of the fire body. A first upper telescopic cylinder is hinged to the third shaft pin, and the lower end of the first upper telescopic cylinder is hinged to the first shaft pin. The other end of the first shaft pin is hinged to the upper part of the outer ring surface of the fire gun body.

[0010] Furthermore, a fourth pivot pin is provided on the left side of the fire body lifting and moving left and right structure. A first lower telescopic cylinder is hinged to the fourth pivot pin, and a second pivot pin is hinged to the other end of the first lower telescopic cylinder. The other end of the second pivot pin is hinged to the left side of the outer ring surface of the fire gun body.

[0011] Furthermore, the outer surface of the musket body is provided with a water circulation cooling structure, and a fire body balancing device is installed on the musket body. Additionally, a gas and oxygen connection port is provided at the front of the musket body.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. To ensure smooth movement and positional accuracy of the flamethrower body, this utility model incorporates corresponding measures in its transmission structure. For forward and backward movement, a large-span roller position is used, and the drive employs a unified power source with gears and racks on both sides, achieving high stability and high precision. This minimizes the vertical and horizontal positional errors of the flame nozzle at the end of the long arm of the flamethrower. For left and right movement, a precision guide rail and gear rack linkage are used, achieving high stability and high precision.

[0014] 2. This invention minimizes the lateral positional error of the flame nozzle at the end of the long arm of the flame gun; its vertical movement is achieved through a unified power drive that links precision guide rails on both sides with a double-screw nut, resulting in high stability and precision. This minimizes the lateral positional error of the flame nozzle at the end of the long arm of the flame gun.

[0015] 3. In this utility model, the flamethrower body is equipped with a water circulation cooling structure to ensure sufficient strength of the flamethrower arm under high-temperature conditions. Furthermore, the flamethrower body is assembled from oxygen, fuel gas, and water circulation pipes, arranged from smallest to largest and from the inside out. To ensure sufficient strength of the flamethrower arm, concentric rings are installed between the pipes and ignited as a single unit. Multiple concentric rings are evenly arranged along the length of the flamethrower body, integrating multiple pipes into a single unit and maximizing the strength of the flamethrower arm. Attached Figure Description

[0016] Figure 1 This is a front view schematic diagram of an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of section AA in an embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of the BB section in an embodiment of the present utility model;

[0019] Figure 4 This is a top view of the fire body lifting assembly according to an embodiment of the present utility model;

[0020] Figure 5 This is a top view of the furnace bottom according to an embodiment of the present invention.

[0021] In the diagram: 1. Device base frame; 10. Horizontal base; 11. Water platform; 12. X-axis linear guide rail; 13. Anti-collision component; 2. Steel ladle bottom outer frame; 20. Base; 21. Pulley; 22. Fire body lifting and moving left and right structure; 23. First upper telescopic cylinder; 24. First axle pin; 25. Fire body lifting component; 26. Positioning column; 27. Lifting plate; 28. First lower telescopic cylinder; 200. Positioning sleeve; 220. Third axle pin; 221. Fourth axle pin; 29. ​​Second axle pin; 3. Fire gun body. Detailed Implementation

[0022] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. The specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. Specific details such as particular system structures and technologies are provided to facilitate a more thorough understanding of the embodiments of this utility model. The described embodiments are some, but not all, of the embodiments disclosed herein. However, those skilled in the art should understand that the present utility model can also be implemented in other embodiments without these specific details. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without inventive effort are within the scope of protection of this disclosure.

[0023] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0024] Figure 1 This is a front view schematic diagram of an embodiment of the present utility model. Figure 2 This is a schematic diagram of section AA in an embodiment of the present utility model. Figure 3 This is a schematic diagram of the BB section in an embodiment of the present utility model. Figure 4 This is a top view of the fire body lifting assembly according to an embodiment of the present utility model. Figure 5 This is a top view of the furnace bottom according to an embodiment of the present invention.

[0025] Reference Figures 1 to 5 As shown, this utility model provides a cleaning device for the bottom blowing channel of a molten steel ladle, including a device base frame 1 and a molten steel ladle bottom outer frame 2. A horizontal base 10 is provided on the lower side of the device base frame 1, and a water platform 11 is provided on the upper end of the device base frame 1. An X-axis linear guide rail 12 is provided on the upper surface of the water platform 11, and the molten steel ladle bottom outer frame 2 moves left and right on the X-axis linear guide rail 12. A fire body lifting assembly 25 is installed on the upper part of the molten steel ladle bottom outer frame 2, and a lifting plate 27 is provided on the lower part of the fire body lifting assembly 25. A positioning column 26 is provided in the middle of the lifting plate 27, and a positioning sleeve 200 is provided directly below the positioning column 26. A fire body lifting and moving left and right structure 22 is provided in the middle of the molten steel ladle bottom outer frame 2, and a fire gun body 3 is movably installed in the fire body lifting and moving left and right structure 22.

[0026] In this embodiment, anti-collision components 13 are provided at both ends of the X-axis linear guide 12, and springs and rubber damping blocks are provided on the inner side of the anti-collision components 13; the right side of the ladle bottom outer frame 2 on the X-axis linear guide 12 is the initial position before the flame gun works, and the left side of the ladle bottom outer frame 2 on the X-axis linear guide 12 is the flame gun working position; a base 20 is provided at the lower part of the ladle bottom outer frame 2, and a pulley 21 is provided on the lower end face of the base 20, and the pulley 21 rolls on the X-axis linear guide 12;

[0027] As a preferred embodiment, this invention employs corresponding measures in the transmission structure to ensure smooth movement and positional accuracy of the flamethrower body. For forward and backward movement, a large-span roller position is used, and the drive utilizes a unified power source with gears and racks on both sides, achieving high stability and high precision. This minimizes the vertical and horizontal positional errors of the flamethrower nozzle at the end of the long arm. For left and right movement, a precision guide rail and gear / rack linkage are used, achieving high stability and high precision.

[0028] In this embodiment, a third shaft pin 220 is provided on the upper side of the fire body lifting and moving left and right structure 22. A first upper telescopic cylinder 23 is hinged to the third shaft pin 220, and the lower end of the first upper telescopic cylinder 23 is hinged to the first shaft pin 24. The other end of the first shaft pin 24 is hinged to the upper part of the outer ring surface of the fire gun body 3. A fourth shaft pin 221 is provided on the left side of the fire body lifting and moving left and right structure 22. A first lower telescopic cylinder 28 is hinged to the fourth shaft pin 221, and the other end of the first lower telescopic cylinder 28 is hinged to the second shaft pin 29. The other end of the second shaft pin 29 is hinged to the left side of the outer ring surface of the fire gun body 3.

[0029] As a preferred embodiment, this invention minimizes the lateral positional error of the flame nozzle at the end of the long arm of the flame gun; its vertical movement is achieved by a unified power drive that links precision guide rails on both sides with a double-screw nut, resulting in high stability and high precision. This minimizes the lateral positional error of the flame nozzle at the end of the long arm of the flame gun.

[0030] In this embodiment, the outer surface of the musket body 3 is provided with a water circulation cooling structure, and a fire body balancing component is installed on the musket body 3. Furthermore, a gas and oxygen connection port is provided at the front of the musket body 3.

[0031] In a preferred embodiment, the flamethrower body of this invention features a water-circulating cooling structure to ensure sufficient strength of the flamethrower arm under high-temperature conditions. Furthermore, the flamethrower body is constructed by integrating oxygen, fuel gas, and water circulation pipes from smallest to largest and from the inside out. To further ensure sufficient strength of the flamethrower arm, concentric rings are installed between the pipes and ignited as a single unit. Multiple concentric rings are evenly distributed along the length of the flamethrower body, integrating multiple pipes into a single unit and maximizing the strength of the flamethrower arm.

[0032] This invention effectively solves the problems in the prior art where the cleaning of the bottom channel of molten steel ladle is not smooth and the movement direction is not flexible, which affects the accuracy and speed of cleaning the blowing channel and makes it impossible to achieve high-temperature cleaning of steel slag in the bottom blowing channel of molten steel ladle. This invention helps to move the flame gun stably and flexibly, so that the flame gun head will swing within a predetermined movement program range to clean the steel slag blocking the bottom blowing channel of molten steel ladle at high temperature, achieving high stability, high precision, and more efficient, fast and practical operation.

[0033] The working principle of this invention is as follows: The flame gun is positioned, and circulating water, oxygen, and fuel gas are supplied to it. Nitrogen is immediately supplied to the bottom blowing channel of the molten steel ladle. Simultaneously, the flame gun sprays flame, and the nozzle moves according to a predetermined program to clean the slag blocking the bottom blowing channel of the molten steel ladle at high temperature. During the high-temperature cleaning process, when the nitrogen supply reaches the required value, the supply of oxygen, fuel gas, and nitrogen is stopped, and the circulating water supply is temporarily stopped. The flame gun is then moved out of position.

[0034] The flamethrower moves to the right, then moves upward, until it reaches its final position. Repeating this process, the flamethrower moves downward and then to the left, returning to its initial position. This completes the cleaning of one ladle bottom blowing channel. The entire process can be fully automated.

[0035] The above embodiments are used to explain and illustrate the present utility model, and not to limit the utility model. Any modifications and changes made to the present utility model within the spirit and scope of the claims should be included within the protection scope of the present utility model.

Claims

1. A device for cleaning a bottom-blowing channel of a ladle, characterized in that: Including device base (1) and ladle bottom outer frame (2), the lower side of device base (1) is provided with horizontal base (10), and the upper end of device base (1) is provided with water platform (11), the upper end surface of water platform (11) is provided with X-axis linear guide rail (12), and the left and right movable activity of X-axis linear guide rail (12) has ladle bottom outer frame (2), the upper portion of ladle bottom outer frame (2) is installed with fire body lifting assembly (25), and the lower portion of fire body lifting assembly (25) is provided with lifting plate (27), the middle part of lifting plate (27) is provided with positioning column (26), and the lower side of positioning column (26) is provided with positioning sleeve (200), the middle part of ladle bottom outer frame (2) is provided with fire body lifting movement left and right structure (22), and the movable activity of fire body lifting movement left and right structure (22) has fire lance body (3).

2. The device according to claim 1, characterized in that, The left and right ends of the X-axis linear guide rail (12) are provided with anti-collision components (13), and the inner side surfaces of the anti-collision components (13) are provided with springs and rubber damping blocks.

3. The device according to claim 1, wherein The right part of the ladle bottom outer frame (2) on the X-axis linear guide rail (12) is the initial position before the fire lance works, and the left part of the ladle bottom outer frame (2) on the X-axis linear guide rail (12) is the fire spraying position when the fire lance works.

4. The device according to claim 1, wherein The lower part of the ladle bottom outer frame (2) is provided with a base (20), and the lower end surface of the base (20) is provided with a pulley (21), and the pulley (21) rolls on the X-axis linear guide rail (12).

5. The device according to claim 1, wherein The upper side of the fire body lifting movement left and right structure (22) is provided with a third shaft pin (220), the first upper telescopic cylinder (23) is hinged to the third shaft pin (220), the lower end of the first upper telescopic cylinder (23) is hinged to the first shaft pin (24), and the other end of the first shaft pin (24) is hinged to the upper part of the outer ring surface of the fire lance body (3).

6. The device according to claim 1, wherein The left side of the fire body lifting movement left and right structure (22) is provided with a fourth shaft pin (221), the first lower telescopic cylinder (28) is hinged to the fourth shaft pin (221), the other end of the first lower telescopic cylinder (28) is hinged to the second shaft pin (29), and the other end of the second shaft pin (29) is hinged to the left side of the outer ring surface of the fire lance body (3).

7. The device according to claim 1, wherein The outer surface layer of the fire lance body (3) is provided with a water circulation cooling structure, and the fire lance body (3) is provided with a fire body balance configuration, and the front part of the fire lance body (3) is provided with a gas and oxygen connection pipe.

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