A molten steel inoculant injection device
By adjusting the direction of the spray gun using a kinetic energy component driven by a vision camera and controller, and using an impact component to prevent clogging, the problem of uneven spraying in traditional devices is solved, achieving high hit rate and uniform inoculant spraying, and optimizing the solidification structure and material properties of molten steel.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO KEMEI CHUANGSHI INTELLIGENT TECH CO LTD
- Filing Date
- 2025-08-08
- Publication Date
- 2026-06-23
AI Technical Summary
Traditional steel inoculant injection devices cannot adjust the injection direction in real time according to flow rate changes, resulting in uneven and wasteful inoculant injection and low injection hit rate.
A visual camera is used to monitor the flow of molten steel in real time. The controller analyzes and drives the kinetic energy component to adjust the direction of the spray gun. At the same time, the impact component is used to vibrate the spray gun to prevent clogging and break up particles, so as to achieve continuous, stable and uniform spraying.
It improves the hit rate and uniformity of inoculant spraying, ensuring that the inoculant is accurately sprayed onto the molten steel, and optimizing the solidification structure and material properties of the molten steel.
Smart Images

Figure CN224394914U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of inoculant spraying technology, specifically to a steel inoculant spraying device. Background Technology
[0002] Injecting inoculants into molten steel is a key process in steelmaking (especially cast iron production). Its core purpose is to optimize the mechanical properties, processing properties, and service properties of the material by changing the solidification structure of molten steel (or molten iron).
[0003] When molten steel falls downwards (for example, molten steel flows from the tundish to the crystallizer during continuous casting, or molten steel flows out of the ladle during pouring), its flow rate is often uneven due to factors such as changes in liquid level and flow stream disturbance. There may be swaying or tilting. Traditional spraying devices cannot change the spraying direction in time according to the changes in flow rate, which will cause waste and uneven spraying of inoculant. The hit rate of inoculant spraying needs to be improved. Utility Model Content
[0004] The purpose of this invention is to provide a steel inoculant injection 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 steel inoculant spraying device, comprising: a base plate and a support plate mounted on the base plate, and further comprising: a controller mounted on one side outer wall of the support plate, a visual camera mounted on one end of the support plate, and an arc-shaped frame mounted on one end of the top outer wall of the base plate, the arc-shaped frame having an arc-shaped opening on its top outer wall, and a rack mounted on its top outer wall, a sliding groove on one side outer wall of the arc-shaped frame, and a kinetic energy component slidably connected to the inner wall of the sliding groove, an arc-shaped block slidably connected to the inner wall of the arc-shaped opening, and the inner shaft structure of the kinetic energy component being rotatably connected to the outer wall of the arc-shaped block, an mounting plate mounted on one side of the bottom outer wall of the arc-shaped block, and a spray gun inserted into the top outer wall of the mounting plate via a rubber ring, and an impact component mounted on the bottom outer wall of the mounting plate.
[0006] The kinetic energy component includes a slider, a bending plate mounted on one side of the outer wall of the slider, a motor mounted on one side of the outer wall of the bending plate, a gear and a curved wheel mounted on the output shaft of the motor.
[0007] The gear meshes with the rack, and the rack has an arc-shaped structure.
[0008] The impact assembly includes a fixed plate, a movable rod inserted into the outer wall of one side of the fixed plate, a spring sleeved on the outside of the movable rod, and rollers and impact blocks respectively installed at both ends of the movable rod.
[0009] The outer wall of the roller is in contact with the outer wall of the curved wheel.
[0010] Both the motor and the vision camera are connected to the controller via signal lines.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] This invention relates to a steel inoculant injection device. A visual camera monitors the flow of molten steel in real time. After analysis by a controller, a kinetic energy component drives the injection gun to dynamically adjust its direction, improving the inoculant injection hit rate. Simultaneously, the kinetic energy component drives an impact component to vibrate the injection gun, preventing blockage and breaking up particles, ensuring continuous, stable, and uniform injection, and optimizing the steel inoculation effect. Attached Figure Description
[0013] Figure 1 This is a first-view structural diagram of the present invention;
[0014] Figure 2 This is a second-view structural diagram of the present invention;
[0015] Figure 3 This is a structural diagram of the kinetic energy component of this utility model;
[0016] Figure 4 This is a structural diagram of the impact component of this utility model.
[0017] In the diagram: 1. Base plate; 2. Support plate; 3. Controller; 4. Vision camera; 5. Arc frame; 6. Arc opening; 7. Rack; 8. Slide groove; 9. Kinetic energy component; 901. Slider; 902. Bending plate; 903. Motor; 904. Gear; 905. Curved wheel; 10. Arc block; 11. Mounting plate; 12. Rubber ring; 13. Spray gun; 14. Impact component; 1401. Fixing plate; 1402. Movable rod; 1403. Rotating roller; 1404. Impact block; 1405. Spring. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.
[0019] Please see Figure 1-4The present invention provides a steel inoculant spraying device, comprising: a base plate 1 and a support plate 2 mounted on the base plate 1, and further comprising: a controller 3 mounted on one side outer wall of the support plate 2, a vision camera 4 mounted on one end of the support plate 2, an arc-shaped frame 5 mounted on one end of the top outer wall of the base plate 1, an arc-shaped opening 6 on the top outer wall of the arc-shaped frame 5, a rack 7 mounted on the top outer wall of the arc-shaped frame 5, a sliding groove 8 on one side outer wall of the arc-shaped frame 5, a kinetic energy component 9 slidably connected to the inner wall of the sliding groove 8, an arc-shaped block 10 slidably connected to the inner wall of the arc-shaped opening 6, and the inner shaft structure of the kinetic energy component 9 rotatably connected to the outer wall of the arc-shaped block 10, an mounting plate 11 mounted on one side of the bottom outer wall of the arc-shaped block 10, a spray gun 13 inserted into the top outer wall of the mounting plate 11 through a rubber ring 12, and an impact component 14 mounted on the bottom outer wall of the mounting plate 11.
[0020] It should be noted that the device can be installed in a suitable position so that the spray gun 13 is in front of the flowing molten steel. The visual camera 4 is set up to collect images of the molten steel flow in real time and transmit the data to the controller 3. The controller 3 analyzes the changes in molten steel flow, swaying and tilting based on the images, calculates the required spray direction of the spray gun 13, and then sends a command to the kinetic energy component 9 to drive the spray gun 13 to move, adjust its position and angle, and realize real-time adjustment of the spray direction to ensure that the inoculant can be accurately sprayed onto the molten steel, thereby improving the spray hit rate of the inoculant. During the process of driving the spray gun 13 to move, the kinetic energy component 9 can simultaneously drive the impact component 14 to reciprocate, impacting the spray gun 13 and causing it to vibrate. Inoculants are mostly granular or powdery, such as ferrosilicon and silicon-calcium alloy. When they are transported inside the spray gun 13, they may accumulate on the inner wall of the gun due to inter-particle friction, gravity or moisture agglomeration, and may even block the nozzle. Vibration can prevent the spray gun 13 from clogging and ensure continuous and stable spraying. At the same time, it can also disperse particles during spraying and improve the dispersion uniformity.
[0021] In a preferred embodiment, the kinetic energy component 9 includes a slider 901, a bending plate 902 mounted on one side of the outer wall of the slider 901, a motor 903 mounted on one side of the outer wall of the bending plate 902, a gear 904 mounted on the output shaft of the motor 903, and a curved wheel 905.
[0022] It should be noted that after the motor 903 starts, it drives the gear 904 and the curved wheel 905 to rotate. The gear 904 meshes with the rack 7 on the arc frame 5, causing the slider 901 to slide along the arc frame 5 in the slide groove 8. During this process, the rotation of the curved wheel 905 will drive the impact component 14 to reciprocate, impacting the spray gun 13 and causing it to vibrate.
[0023] In a preferred embodiment, the gear 904 meshes with the rack 7, and the rack 7 has an arc-shaped structure.
[0024] It should be noted here that gear 904 meshes with the arc-shaped rack 7, and rack 7 has an arc-shaped structure. This structural design enables the kinetic energy component 9 to move in an arc along the arc-shaped frame 5.
[0025] In a preferred embodiment, the impact assembly 14 includes a fixed plate 1401, a movable rod 1402 movably inserted into the outer wall of one side of the fixed plate 1401, a spring 1405 sleeved on the outside of the movable rod 1402, a rotating roller 1403 and an impact block 1404 respectively installed at both ends of the movable rod 1402; the outer wall of the rotating roller 1403 contacts the outer wall of the curved wheel 905.
[0026] It should be noted that: the rotating roller 1403 contacts the outer wall of the curved wheel 905. When the curved wheel 905 rotates, it pushes the rotating roller 1403, causing the movable rod 1402 to reciprocate on the fixed plate 1401. This motion is transmitted to the mounting plate 11 and the spray gun 13 through the impact block 1404, achieving slight vibration of the spray gun 13, which helps to prevent the spray gun 13 from clogging, ensures continuous and stable spraying, and disperses particles, improving dispersion uniformity.
[0027] In a preferred embodiment, both the motor 903 and the vision camera 4 are connected to the controller 3 via signal lines.
[0028] It should be noted that: the visual camera 4 transmits the collected information on the molten steel flow to the controller 3. After analysis and processing, the controller 3 sends control commands to the motor 903. The motor 903 operates according to the commands, driving the kinetic energy component 9 to move, thereby achieving real-time control of the spray direction of the spray gun 13, ensuring that the inoculant can be accurately sprayed onto the molten steel and improving the spray hit rate.
[0029] Working principle:
[0030] Steel Condition Monitoring and Signal Transmission
[0031] The visual camera 4 captures real-time images of the molten steel stream, including its swaying, tilting, and flow rate changes, and transmits the data to the controller 3 via a signal line. The controller 3 analyzes the images and calculates the required real-time adjustment direction and angle for the spray gun 13.
[0032] Dynamic adjustment of injection direction
[0033] The controller 3 sends a command to the motor 903 in the kinetic energy component 9. After the motor 903 starts, it drives the gear 904 and the curved wheel 905 to rotate synchronously. Since the gear 904 meshes with the arc rack 7 on the arc frame 5, the slider 901 slides in an arc along the slide groove 8, causing the arc block 10 to move synchronously within the arc opening 6. The arc block 10 drives the spray gun 13 to adjust its overall angle through the mounting plate 11, realizing the dynamic matching of the spray direction with the molten steel stream.
[0034] Vibration-assisted optimization of spray gun
[0035] When the motor 903 drives the curved wheel 905 to rotate, the curved wheel 905 contacts the roller 1403 of the impact assembly 14, pushing the movable rod 1402 to reciprocate on the fixed plate 1401. The impact block 1404 at the end of the movable rod 1402 repeatedly impacts the mounting plate 11, which is transmitted to the spray gun 13 through the rubber ring 12, causing it to generate high-frequency vibration. This vibration can prevent the inoculant from accumulating and clogging in the spray gun 13, and disperse the particles to improve the uniformity of dispersion. The spring 1405 ensures the continuous reciprocating motion of the movable rod 1402 through elastic reset
[1405] .
[0036] Coordinated operation of closed-loop control
[0037] The motor 903 and the vision camera 4 form a closed-loop control with the controller 3 through a signal line: the vision camera 4 continuously feeds back the state of the molten steel, and the controller 3 adjusts the operating parameters of the motor 903 in real time to ensure that the direction and vibration state of the spray gun 13 always adapt to the changes in the molten steel flow, thereby improving the hit rate and uniformity of the inoculant spray.
[0038] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A steel inoculant injection device, comprising: A base plate (1) and a support plate (2) mounted on the base plate (1); The invention is characterized by further comprising: a controller (3) installed on one side of the outer wall of the support plate (2), a visual camera (4) installed at one end of the support plate (2), and an arc frame (5) installed at one end of the top outer wall of the base plate (1), an arc-shaped opening (6) opened on the top outer wall of the arc frame (5), and a rack (7) installed on the top outer wall of the arc frame (5), a sliding groove (8) opened on one side of the outer wall of the arc frame (5), and a kinetic energy component (9) slidably connected to the inner wall of the sliding groove (8), an arc block (10) slidably connected to the inner wall of the arc opening (6), and the inner shaft structure of the kinetic energy component (9) rotatably connected to the outer wall of the arc block (10), an mounting plate (11) installed on one side of the bottom outer wall of the arc block (10), and a spray gun (13) inserted into the top outer wall of the mounting plate (11) through a rubber ring (12), and an impact component (14) installed on the bottom outer wall of the mounting plate (11).
2. The steel inoculant injection device according to claim 1, characterized in that: The kinetic energy component (9) includes a slider (901), a bent plate (902) mounted on one side of the outer wall of the slider (901), a motor (903) mounted on one side of the outer wall of the bent plate (902), a gear (904) mounted on the output shaft of the motor (903), and a curved wheel (905).
3. The steel inoculant injection device according to claim 2, characterized in that: The gear (904) meshes with the rack (7), and the rack (7) has an arc-shaped structure.
4. The steel inoculant injection device according to claim 2, characterized in that: The impact assembly (14) includes a fixed plate (1401), a movable rod (1402) movably inserted into the outer wall of one side of the fixed plate (1401), a spring (1405) sleeved on the outside of the movable rod (1402), a rotating roller (1403) and an impact block (1404) respectively installed at both ends of the movable rod (1402).
5. A steel inoculant injection device according to claim 4, characterized in that: The outer wall of the roller (1403) is in contact with the outer wall of the curved wheel (905).
6. A steel inoculant injection device according to claim 2, characterized in that: The motor (903) and the vision camera (4) are both connected to the controller (3) via signal lines.