A feeding device for steelmaking

Abstract

This utility model discloses a steelmaking feeding device, including a vehicle body. A lifting frame is connected to the top of the vehicle body via a lifting mechanism. A mixing tank is installed on the lifting frame. An anti-clogging stirring mechanism is provided at the bottom of the tank cover. A discharge mechanism is connected to the bottom of the mixing tank via a discharge port. A spreading mechanism is provided at the discharge end of the discharge mechanism. This utility model allows the height of the lifting frame to be adjusted via the lifting mechanism, so that the discharge mechanism is in a suitable position. The anti-clogging stirring mechanism can stir and mix the raw materials in the tank while preventing agglomeration and blockage. After stirring, the raw materials can enter the discharge mechanism through the discharge port at the bottom of the mixing tank. The discharge mechanism can transport the raw materials to the spreading mechanism. Finally, the spreading mechanism can evenly distribute the raw materials into the steelmaking furnace. Thus, through the above structure, the adaptability, smoothness, and uniformity of steelmaking feeding can be effectively improved, and the difficulty of feeding operations can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of steelmaking equipment technology, specifically to a feeding device for steelmaking. Background Technology

[0002] The addition of lime and carbon powder in steelmaking is the result of the synergy of "process parameters, steel grade requirements, and furnace reaction". It needs to be adjusted in real time through online monitoring (such as furnace gas analysis and rapid detection of molten steel composition) to ensure stable steel quality and meet the downstream processing requirements.

[0003] Since raw materials such as lime and carbon powder are solid granules, blockages often occur in the feeding pipe and silo outlet during the feeding process, requiring production to be stopped and manual unblocking, which is time-consuming and labor-intensive. Furthermore, if the raw materials are not fully mixed during the addition process, it will affect the product quality. In addition, the steel ladle is relatively large, and traditional feeding methods cannot guarantee the uniformity of raw material addition at a distance from the ladle. Therefore, it is necessary to design a feeding device for steelmaking to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a feeding device for steelmaking to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a steelmaking feeding device, comprising a vehicle body, a lifting frame above the vehicle body, a lifting mechanism for adjusting the height of the lifting frame installed on the top of the vehicle body, a mixing tank installed near the top of the lifting frame, a tank cover installed on the top of the mixing tank, two sets of feed inlets and two sets of handles on the top, an anti-clogging stirring mechanism for facilitating raw material mixing at the bottom, a discharge port at the bottom of the mixing tank, a discharge mechanism connected to the bottom, and a spreading mechanism for facilitating uniform feeding of raw materials at the discharge end of the discharge mechanism.

[0006] Preferably, the anti-clogging stirring mechanism includes a second motor, and a drive shaft is rotatably connected to the bottom of the tank cover. One end of the drive shaft is connected to the output end of the second motor installed on the top of the tank cover. A stirring frame is sleeved on the outer ring of the drive shaft. Multiple sets of stirring rods are installed on the inner walls of both sides of the stirring frame. Two sets of spiral stirring paddles that fit against the inner wall of the mixing tank are installed on the outer side of the stirring frame. A connecting shaft is provided at the bottom of the stirring frame. One end of the connecting shaft extends to the inner side of the discharge port. Multiple sets of anti-clogging stirring paddles are evenly installed on its outer surface along its axial direction.

[0007] Preferably, the discharge mechanism includes a screw conveyor shaft, a conveying cylinder is installed on the inner bottom of the lifting frame, the conveying cylinder has a conveying cylinder inlet that is detachably connected to the discharge port near one end, and a conveying cylinder outlet near the other end. The screw conveyor shaft is rotatably connected to the inner side of the conveying cylinder, and one end of the screw conveyor shaft is connected to the output end of a third motor installed at the end of the conveying cylinder.

[0008] Preferably, the spreading mechanism includes spreading plates, and a fixed plate is provided below the outlet of the conveying cylinder. One side of the fixed plate is connected to the conveying cylinder through two sets of connecting rods. A rotating shaft is rotatably connected to the top of the fixed plate, and one end of the shaft is connected to the output end of a fourth motor installed at the bottom of the fixed plate. Multiple sets of the spreading plates are installed on the outer ring of the rotating shaft.

[0009] Preferably, the lifting mechanism includes a first motor, a vertical plate is installed on one side of the top of the vehicle body, a sliding groove is provided on one side of the vertical plate, a screw is rotatably connected to the inner side of the sliding groove, one end of which is connected to the output end of the first motor installed on the top of the vertical plate, and a connecting seat is provided on one side of the lifting frame, the connecting seat is slidably connected to the inner side of the sliding groove and threadedly connected to the screw.

[0010] Preferably, the bottom of the vehicle body is equipped with four sets of universal wheels with brakes, and a push rod is installed on one side of the top.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model can adjust the height of the lifting frame through the lifting mechanism to place the discharge mechanism in a suitable position. The anti-blocking stirring mechanism can stir and mix the raw materials in the tank while preventing agglomeration and blockage. After stirring, the raw materials can enter the discharge mechanism through the discharge port at the bottom of the mixing tank. The discharge mechanism can transport the raw materials to the spreading mechanism. Finally, the spreading mechanism can evenly distribute the raw materials into the steelmaking furnace. Thus, through the above structure, the adaptability, smoothness and uniformity of steelmaking feeding can be effectively improved, and the difficulty of feeding operation can be reduced. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a bottom view of the present invention; Figure 3 This is a side view and a top view of the present invention; Figure 4 This is a side sectional view of the present invention; Figure 5 for Figure 4 Enlarged view of part A in the image; Figure 6 for Figure 4 Enlarged view of part B in the image.

[0013] In the diagram: 1. Vehicle body, 2. Universal caster with brake, 3. Push rod, 4. Lifting frame, 5. Connecting seat, 6. Vertical plate, 7. Slide groove, 8. Screw, 9. First motor, 10. Mixing tank, 11. Tank cover, 12. Handle, 13. Feed inlet, 14. Discharge outlet, 15. Second motor, 16. Drive shaft, 17. Mixing frame, 18. Mixing rod, 19. Ribbon mixing paddle, 20. Connecting shaft, 21. Anti-clogging mixing paddle, 22. Conveying cylinder, 23. Conveying cylinder inlet, 24. Conveying cylinder outlet, 25. Screw conveyor shaft, 26. Third motor, 27. Fixed plate, 28. Connecting rod, 29. Fourth motor, 30. Rotating shaft, 31. Spreading plate. Detailed Implementation

[0014] 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.

[0015] Example 1 Please refer to Figure 1-6 As shown, this utility model provides a feeding device for steelmaking, including a vehicle body 1. A lifting frame 4 is provided on the top of the vehicle body 1. A lifting mechanism is installed on the top of the vehicle body 1 to facilitate the height adjustment of the lifting frame 4. A mixing tank 10 is installed near the top of the lifting frame 4. A tank cover 11 is installed on the top of the mixing tank 10. The top of the mixing tank 10 is provided with two sets of feed inlets 13 and two sets of handles 12. The bottom is provided with an anti-clogging stirring mechanism to facilitate the mixing of raw materials. The bottom of the mixing tank 10 is provided with a discharge port 14, which is connected to a discharge mechanism. A spreading mechanism is provided at the discharge end of the discharge mechanism to facilitate the uniform distribution of raw materials.

[0016] Specifically, when using this feeding device, firstly, according to the required feeding height of the steelmaking furnace, the lifting mechanism on the top of the vehicle body 1 is activated. The height of the lifting frame 4 can be adjusted through the lifting mechanism to place the discharge mechanism in a suitable position. Then, the raw materials required for steelmaking are put into the mixing tank 10 from the two sets of feed ports 13 respectively. Subsequently, the anti-blocking stirring mechanism is activated, which can stir and mix the raw materials in the tank while preventing agglomeration and blockage. After stirring, the raw materials can enter the discharge mechanism through the discharge port 14 at the bottom of the mixing tank 10. The discharge mechanism can transport the raw materials to the spreading mechanism. Finally, the spreading mechanism can evenly distribute the raw materials into the steelmaking furnace. Thus, through the above structure, the adaptability, smoothness and uniformity of steelmaking feeding can be effectively improved, and the difficulty of feeding operations can be reduced.

[0017] The anti-clogging stirring mechanism includes a second motor 15. A drive shaft 16 is rotatably connected to the bottom of the tank cover 11, one end of which is connected to the output end of the second motor 15 mounted on the top of the tank cover 11. A stirring frame 17 is sleeved on the outer ring of the drive shaft 16. Multiple sets of stirring rods 18 are installed on the inner walls of both sides of the stirring frame 17. Two sets of ribbon stirring paddles 19 that fit against the inner wall of the mixing tank 10 are installed on the outer side of the stirring frame 17. A connecting shaft 20 is provided at the bottom of the stirring frame 17. One end of the connecting shaft 20 extends to the inner side of the discharge port 14. Multiple sets of anti-clogging stirring paddles 21 are evenly installed on its outer surface along its axial direction. By starting the second motor 15, the output end of the second motor 15 can drive the drive shaft 16 to rotate, and the stirring frame 17 sleeved on the outer ring of the drive shaft 16 can rotate synchronously, stirring... Multiple sets of stirring rods 18 installed on the inner walls of both sides of the frame 17 can rotate and stir and disperse the raw materials in the mixing tank 10. At the same time, two sets of spiral stirring paddles 19 installed on the outer side of the stirring frame 17 and attached to the inner wall of the mixing tank 10 can scrape the raw materials on the inner wall of the tank and assist in stirring when the stirring frame 17 rotates, preventing the raw materials from adhering to the tank wall. When the connecting shaft 20 at the bottom of the stirring frame 17 rotates synchronously, it can drive multiple sets of anti-clogging stirring paddles 21 to rotate, thereby stirring and pushing the raw materials at the discharge port 14 to prevent the raw materials from clumping and clogging at the discharge port 14. Ultimately, the dual effect of stirring and mixing the raw materials in the mixing tank 10 and preventing the discharge port from clogging is achieved. Thus, by setting up the system, the raw materials in the tank can be stirred efficiently and the blockage of the raw materials can be prevented, ensuring the smooth conveying and feeding process of steelmaking raw materials.

[0018] The discharge mechanism includes a screw conveyor shaft 25. A conveying cylinder 22 is installed on the inner bottom of the lifting frame 4. The conveying cylinder 22 has a conveying cylinder inlet 23 near one end, which is detachably connected to the discharge port 14, and a conveying cylinder outlet 24 near the other end. The screw conveyor shaft 25 is rotatably connected to the inner side of the conveying cylinder 22, and one end of the screw conveyor shaft 25 is connected to the output end of a third motor 26 installed at the end of the conveying cylinder 22. After the raw materials in the mixing tank 10 are mixed, the discharge port 14 at the bottom of the mixing tank 10 is opened, and the raw materials can fall into the conveying cylinder inlet 23 through the discharge port 14. Then the third motor is started. The output end of the third motor 26 can drive the spiral conveying shaft 25, which is rotatably connected to the inside of the conveying cylinder 22, to rotate. The spiral conveying shaft 25, through the propulsive force generated by the rotation, can transport the raw material in the conveying cylinder 22 along the cylinder body to the conveying cylinder outlet 24 near the other end. After the raw material is discharged from the conveying cylinder outlet 24, it can enter the spreading mechanism, thereby completing the raw material conveying operation. In this way, the blockage of steelmaking raw materials during the conveying process can be avoided, and it is also convenient to clean and maintain the connection between the conveying cylinder 22 and the discharge port 14 in the later stage, ensuring the smoothness of raw material conveying and the practicality of the equipment.

[0019] The material spreading mechanism includes a material spreading plate 31. A fixed plate 27 is located below the outlet 24 of the conveyor cylinder. One side of the fixed plate 27 is connected to the conveyor cylinder 22 via two sets of connecting rods 28. A rotating shaft 30 is rotatably connected to the top of the fixed plate 27. One end of the shaft 30 is connected to the output end of a fourth motor 29 installed at the bottom of the fixed plate 27. Multiple sets of inclined material spreading plates 31 are installed on the outer ring of the rotating shaft 30. When the conveyor cylinder 22 of the discharge mechanism discharges steelmaking raw materials through the outlet 24 of the conveyor cylinder, the fourth motor 29 at the bottom of the fixed plate 27 is activated. The output end of the fourth motor 29 can drive the rotating shaft 30 to rotate. The multiple sets of inclined spreading plates 31 installed can rotate synchronously with the rotating shaft 30. The raw material falling from the outlet 24 of the conveying cylinder falls directly onto the rotating spreading plates 31. The inclined spreading plates 31 generate centrifugal force during rotation, which can evenly spread the raw material in all directions. At the same time, the fixed plate 27 is connected to the conveying cylinder 22 through two sets of connecting rods 28, which can ensure that the spreading mechanism remains stable during operation. Ultimately, the raw material is evenly fed into the steelmaking furnace. In addition, by setting up the plate, the accumulation of raw material can be effectively avoided, the steelmaking raw material can be evenly fed, and the mixing efficiency of raw material and molten steel can be improved.

[0020] The lifting mechanism includes a first motor 9. A vertical plate 6 is installed on one side of the top of the vehicle body 1. A groove 7 is opened on one side of the vertical plate 6. A screw 8 is rotatably connected to the inner side of the groove 7. One end of the screw 8 is connected to the output end of the first motor 9 installed on the top of the vertical plate 6. A connecting seat 5 is provided on one side of the lifting frame 4. The connecting seat 5 is slidably connected to the inner side of the groove 7 and threadedly connected to the screw 8. When it is necessary to adjust the height of the lifting frame 4 to adapt to the charging height of different steelmaking furnaces, the first motor 9 is started. The output end of the first motor 9 can drive the screw 8 to rotate. Since the connecting seat 5 on one side of the lifting frame 4 is slidably connected to the inner side of the groove 7 and threadedly connected to the screw 8, when the screw 8 rotates, it can drive the connecting seat 5 to slide up and down along the groove 7 through thread transmission. The connecting seat 5 can then drive the lifting frame 4 to move up and down synchronously until the lifting frame 4 is adjusted to the required height. Thus, by setting it up, it can accurately adapt to the charging requirements of steelmaking furnaces of different heights, improving the versatility and ease of operation of the device.

[0021] The bottom of the vehicle body 1 is equipped with four sets of universal casters 2 with brakes, and a push rod 3 is installed on one side of the top. The four sets of universal casters 2 with brakes at the bottom of the vehicle body 1 make it easy for the device to move flexibly to different steelmaking furnaces, and the braking function can fix the position of the device to ensure stable operation. The push rod 3 on the top side can make it easy for the operator to push the device, which significantly improves the mobility and operational flexibility of the feeding device for steelmaking.

[0022] Working principle: First, based on the charging height of the steelmaking furnace, the first motor 9 is started. The first motor 9 drives the screw 8 in the slide chute 7 to rotate, causing the connecting seat 5, which is threadedly connected to the screw 8, to slide along the slide chute 7. This, in turn, drives the lifting frame 4 to adjust to a suitable height. Then, after the steelmaking raw materials are put into the mixing tank 10 through the two sets of feed inlets 13, the second motor 15 is started. The second motor 15 drives the transmission shaft 16 to rotate, enabling the stirring rod 18 and the ribbon stirring paddle 19 of the stirring frame 17 to stir the raw materials in the tank. The anti-clogging stirring paddle 21 of the connecting shaft 20 can... Synchronous rotation prevents blockage of the discharge port 14. After mixing, the discharge port 14 is opened, and the raw material can enter the conveying cylinder 22 through the conveying cylinder inlet 23. Then, the third motor 26 drives the spiral conveying shaft 25 to rotate, thereby conveying the raw material to the conveying cylinder outlet 24. At the same time, the fourth motor 29 at the bottom of the fixed plate 27 is started. The fourth motor 29 can drive the rotating shaft 30 and multiple sets of inclined spreading plates 31 to rotate. The raw material falling from the conveying cylinder outlet 24 can be centrifugally scattered by the spreading plates 31 so that it can be evenly put into the steelmaking furnace, thus completing the entire operation process.

[0023] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0024] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A feeding device for steelmaking, comprising a vehicle body (1), characterized in that: A lifting frame (4) is provided above the vehicle body (1). A lifting mechanism is installed on the top of the vehicle body (1) to facilitate the height adjustment of the lifting frame (4). A mixing tank (10) is installed near the top of the lifting frame (4). A tank cover (11) is installed on the top of the mixing tank (10). Two sets of feed inlets (13) and two sets of handles (12) are provided on the top. An anti-clogging stirring mechanism is provided at the bottom to facilitate the mixing of raw materials. A discharge port (14) is provided at the bottom of the mixing tank (10). A discharge mechanism is connected to the bottom of the discharge mechanism. A spreading mechanism is provided at the discharge end of the discharge mechanism to facilitate the uniform distribution of raw materials.

2. The steelmaking feeding device according to claim 1, characterized in that: The anti-clogging stirring mechanism includes a second motor (15). A drive shaft (16) is rotatably connected to the bottom of the tank cover (11). One end of the drive shaft (16) is connected to the output end of the second motor (15) installed on the top of the tank cover (11). A stirring frame (17) is sleeved on the outer ring of the drive shaft (16). Multiple sets of stirring rods (18) are installed on the inner walls of both sides of the stirring frame (17). Two sets of spiral stirring paddles (19) that fit against the inner wall of the mixing tank (10) are installed on the outer side of the stirring frame (17). A connecting shaft (20) is provided at the bottom of the stirring frame (17). One end of the connecting shaft (20) extends to the inner side of the discharge port (14). Multiple sets of anti-clogging stirring paddles (21) are evenly installed on the outer surface along its axial direction.

3. The steelmaking feeding device according to claim 2, characterized in that: The discharge mechanism includes a screw conveyor shaft (25), and a conveyor cylinder (22) is installed on the inner bottom of the lifting frame (4). The conveyor cylinder (22) has a conveyor cylinder inlet (23) that is detachably connected to the discharge port (14) near one end, and a conveyor cylinder outlet (24) near the other end. The screw conveyor shaft (25) is rotatably connected to the inner side of the conveyor cylinder (22), and one end of it is connected to the output end of a third motor (26) installed at the end of the conveyor cylinder (22).

4. A steelmaking feeding device according to claim 3, characterized in that: The material spreading mechanism includes a material spreading plate (31). A fixed plate (27) is provided below the outlet (24) of the conveying cylinder. One side of the fixed plate (27) is connected to the conveying cylinder (22) through two sets of connecting rods (28). A rotating shaft (30) is rotatably connected to the top of the fixed plate (27). One end of the shaft (30) is connected to the output end of a fourth motor (29) installed at the bottom of the fixed plate (27). Multiple sets of inclined material spreading plates (31) are installed on the outer ring of the rotating shaft (30).

5. A steelmaking feeding device according to claim 1, characterized in that: The lifting mechanism includes a first motor (9), a vertical plate (6) is installed on one side of the top of the vehicle body (1), a groove (7) is provided on one side of the vertical plate (6), a screw (8) is rotatably connected to the inner side of the groove (7), one end of which is connected to the output end of the first motor (9) installed on the top of the vertical plate (6), and a connecting seat (5) is provided on one side of the lifting frame (4), the connecting seat (5) is slidably connected to the inner side of the groove (7) and threadedly connected to the screw (8).

6. A steelmaking feeding device according to claim 5, characterized in that: The bottom of the vehicle body (1) is equipped with four sets of universal wheels (2) with brakes, and a push rod (3) is installed on one side of the top.

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