A silicon-carbon alloy feeding device for steelmaking

Abstract

This utility model relates to a silicon-carbon alloy feeding device for steelmaking, belonging to the technical field of feeding devices. It includes a frame and a hopper. A conveying assembly for conveying silicon-carbon alloy is fixedly connected to the upper end of the frame. The hopper is fixedly connected to the upper end of the frame via two sets of left and right support frames, located directly above the conveying assembly. The upper end of the hopper has an inlet, and the lower end has a outlet. A protective component connects the outlet to the conveying assembly, and a discharge plate is fixedly connected to the inner side of the inlet. This utility model pre-removes the outer packaging of the silicon-carbon alloy and stores it in the hopper. When feeding is needed, it can be completed simply through the conveying assembly. The feeding process is time-saving, labor-saving, efficient, and reduces safety risks. It can also complete the addition of sufficient silicon-carbon alloy within the limited steelmaking time, eliminating the need for additional, more expensive ferrosilicon and carbon raisers, further reducing production costs.

Description

Technical Field

[0001] This utility model relates to the field of feeding device technology, and in particular to a silicon-carbon alloy feeding device for steelmaking. Background Technology

[0002] In steelmaking, silicon-carbon alloys are widely used as highly efficient composite deoxidizers and alloying agents in steel treatment processes. By adding them to the steel stream during tapping, the impact of the molten steel achieves rapid stirring and dissolution, significantly improving the absorption rate of alloying elements and preventing alloy settling or clumping.

[0003] Currently, in some small steel mills, the addition of silicon-carbon alloys still relies on manual operation. Typically, small bags of 10kg or 15kg are placed in advance on a flatcar behind the furnace. During tapping, workers manually open the alloy bags and pour the entire bag of alloy material into a chute located on the platform behind the furnace, which then guides the alloy into the ladle. Because manual feeding is slow, often not all the required alloy has been added by the end of tapping, severely limiting the actual amount of silicon-carbon alloy used.

[0004] This manual feeding method has obvious drawbacks: it is time-consuming, labor-intensive, inefficient, and poses safety risks. Secondly, it is difficult to add a sufficient amount of silicon-carbon alloy within the limited steelmaking time, necessitating the addition of ferrosilicon and carburizing agents, which significantly increases the alloy cost. Summary of the Invention

[0005] To solve the above-mentioned technical problems, this utility model provides a silicon-carbon alloy feeding device for steelmaking. The technical solution of this utility model is as follows: A silicon-carbon alloy feeding device for steelmaking includes a frame and a hopper. A conveying assembly for conveying silicon-carbon alloy is fixedly connected to the upper end of the frame. The hopper is fixedly connected to the upper end of the frame via two sets of left and right support frames. The hopper is located directly above the conveying assembly. The upper end of the hopper has a feed inlet, and the lower end has a discharge outlet. A protective component connects the discharge outlet to the conveying assembly. A discharge plate is fixedly connected to the inner side of the feed inlet. The discharge plate includes a screen plate and two sets of cover plates. The screen plate is fixedly connected to the middle of the feed inlet, and the two sets of cover plates are fixedly connected to the left and right sides of the screen plate, respectively. A feeding bin is fixedly connected to the upper end of the screen plate, and a protective cover is hinged to the upper end of the feeding bin. Two sets of bag-breaking components for breaking the outer bags of silicon-carbon alloy are also connected to the inner side of the feed inlet.

[0006] Optionally, the frame includes two sets of main beams distributed horizontally and horizontally and two sets of crossbeams distributed front and back. The two sets of crossbeams are fixedly connected to the lower surfaces of the two sets of main beams, and the two sets of main beams and the two sets of crossbeams together form a grid structure.

[0007] Optionally, the conveying assembly includes two sets of rollers, a conveyor belt, and a drive motor. Both shaft ends of the two sets of rollers are rotatably connected to bearing seats, which are fixedly connected to the main beam on the corresponding side. The conveyor belt is sleeved on the outside of the two sets of rollers. Multiple sets of idlers for supporting the upper surface of the conveyor belt are installed at equal intervals from front to back on the upper ends of the two sets of main beams. The output shaft of the drive motor is fixed to the shaft end of one of the sets of rollers.

[0008] Optionally, both ends of the two sets of crossbeams are rotatably connected to movable wheels, and the front and rear ends of the two sets of main beams on opposite sides are fixedly connected to ear seats, with support columns connected to the internal threads of the ear seats.

[0009] Optionally, the support frame includes two sets of columns, which are respectively fixedly connected to the front and rear sides of the upper surface of the corresponding main beam. The upper ends of the two sets of columns are jointly fixed with a fixing beam, which is fixedly connected to the side wall of the silo. An intermediate beam is fixedly connected between the two sets of columns.

[0010] Optionally, the protective component includes a C-shaped protective frame with an opening facing the rear. The left and right sides of the C-shaped protective frame are fixedly connected to the corresponding middle beam through multiple sets of I-beams. The lower edge of the C-shaped protective frame is fixedly connected to a lower soft edge, and the upper edge of the C-shaped protective frame is fixedly connected to an upper soft edge.

[0011] Optionally, the screen plate includes a rectangular frame, and multiple sets of screen bars are fixedly arranged at equal intervals from front to back on the inner side of the rectangular frame, with a material drop gap formed between two adjacent sets of screen bars.

[0012] Optionally, multiple sets of movable holes are provided on the upper ends of the left and right side walls of the hopper. Multiple sets of support beams for supporting the discharge plate are horizontally fixedly connected to the inner side of the feed hopper inlet. The bag breaking assembly includes multiple sets of movable rods corresponding to the movable holes and a set of hydraulic cylinders. The movable rods are horizontally slidably disposed inside the corresponding movable holes. One end of the multiple sets of movable rods located inside the hopper is vertically fixedly provided with a long strip seat. The long strip seat is slidably connected to the lower surface of the support beam. Multiple sets of spikes are fixedly connected at equal intervals from front to back at the upper end of the long strip seat. The spikes penetrate the discharge gap upwards and extend to the upper end of the screen plate. One end of the multiple sets of movable rods located outside the hopper is fixedly provided with a drive plate. The side of the drive plate away from the movable rods is fixed to the telescopic end of the hydraulic cylinder. A support seat for mounting the hydraulic cylinder is fixedly connected to the side wall of the hopper.

[0013] Optionally, a control valve assembly for controlling the discharge flow rate of the discharge hopper is also connected to the inner side of the discharge hopper opening.

[0014] Optionally, the control valve assembly includes two sets of valve plates symmetrically arranged on the left and right and two sets of hydraulic cylinders. The upper surface of the middle beam of the two sets of support frames is also fixedly connected to a fixed seat for mounting the hydraulic cylinders. The front and rear sides of the discharge hopper are symmetrically fixed with guide rails. The front and rear sides of the valve plates are slidably connected to the guide rails at the corresponding positions. The side of the two sets of valve plates that is far apart is fixed to the telescopic end of the hydraulic cylinder.

[0015] All of the above optional technical solutions can be combined arbitrarily, and this utility model does not provide a detailed description of the structure after each combination.

[0016] The beneficial effects of this utility model through the above solution are as follows: This invention pre-removes the outer packaging of the silicon-carbon alloy and then stores it in the silo, thus avoiding the cumbersome unpacking and manual handling steps of traditional feeding processes, improving the overall convenience and efficiency of the operation. When feeding is needed, it can be completed simply through the conveyor assembly, saving time and labor, increasing efficiency, and reducing safety risks. Sufficient silicon-carbon alloy can also be added within the limited steel tapping time, eliminating the need for additional, more expensive ferrosilicon and carburizing agents, further reducing production costs.

[0017] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0018] Figure 1 A schematic diagram of the overall appearance structure of the silicon-carbon alloy feeding device for steelmaking provided by this utility model; Figure 2 Front cross-section of the silicon-carbon alloy feeding device for steelmaking provided by this utility model; Figure 3 An exploded structural diagram of the silicon-carbon alloy feeding device for steelmaking provided by this utility model; Figure 4 This is a schematic diagram of the structure of the material hopper, protective component, feeding plate, feeding bin, bag breaking assembly and control valve assembly of this utility model; Figure 5 This is an exploded structural diagram of the material hopper, bag breaking assembly, and control valve assembly in this utility model; Figure 6 This is an exploded structural diagram of the material hopper and the feeding plate in this utility model; Figure 7This is an exploded structural diagram of the valve plate in this utility model.

[0019] Numbered components in the diagram: 1. Frame; 11. Main beam; 12. Crossbeam; 121. Caster wheel; 13. Push handle; 14. Ear seat; 15. Support column; 2. Conveying assembly; 21. Roller; 211. Bearing seat; 22. Conveyor belt; 23. Idler roller; 24. Drive motor; 3. Support frame; 31. Column; 32. Fixed beam; 33. Intermediate beam; 4. Hopper; 41. Feed hopper opening; 42. Discharge hopper opening; 43. Movable hole; 44. Support beam; 5. Protective components; 51. C-shaped protective frame; 511. Square plate; 512. Side plate; 52. Lower soft edge; 53. 54. Soft edge; 6. I-beam frame; 7. Feeding plate; 8. Screen plate; 9. Rectangular frame; 10. Screen bar; 11. Cover plate; 12. Feeding bin; 13. Protective cover; 14. Bag breaking assembly; 15. Movable rod; 16. Long strip seat; 17. Spike; 18. Drive plate; 19. Hydraulic cylinder one; 10. Support seat one; 11. Control valve assembly; 12. Valve plate; 13. Rectangular plate; 14. Reinforcing frame; 15. Angle iron strip; 16. Triangular plate; 17. Guide block; 18. Fixed seat; 19. Hydraulic cylinder two; 10. Guide rail; 11. Connecting seat. Detailed Implementation

[0020] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0021] Please see Figure 1-7 This utility model provides a silicon-carbon alloy feeding device for steelmaking, including a frame 1 and a hopper 4. A conveying assembly 2 for conveying silicon-carbon alloy is fixedly connected to the upper end of the frame 1. The discharge end of the conveying assembly 2 is located above the chute of the furnace rear platform. The hopper 4 is fixedly connected to the upper end of the frame 1 via two sets of left and right support frames 3. The hopper 4 is located directly above the conveying assembly 2. The upper end of the hopper 4 has a feed inlet 41, and the lower end of the hopper 4 has a discharge outlet 42. The discharge outlet 42 is connected to the conveying assembly... A protective component 5 is connected between components 2. A feeding plate 6 is fixedly connected to the inner side of the feed hopper 41. The feeding plate 6 includes a sieve plate 61 for supporting the bagged silicon carbide alloy and two sets of cover plates 62. The sieve plate 61 is fixedly connected to the middle position of the feed hopper 41. The two sets of cover plates 62 are fixedly connected to the left and right sides of the sieve plate 61 respectively. A feeding bin 7 is fixedly connected to the upper end of the sieve plate 61. Two sets of bag-breaking components 8, which are symmetrically arranged on the left and right sides, are also connected to the inner side of the feed hopper 41.

[0022] In this invention, workers pre-load bagged silicon-carbon alloy into the feeding hopper 7. After the bag-breaking component 8 breaks the packaging, the silicon-carbon alloy passes through the screen plate 61 and falls into the hopper 4, then through the discharge hopper opening 42 onto the conveying component 2. When silicon-carbon alloy needs to be added to the ladle, simply activate the conveying component 2. The silicon-carbon alloy on the conveying component 2 is transported at a uniform speed and falls into the chute of the furnace rear platform, eventually sliding into the ladle. By pre-breaking the packaging and storing the silicon-carbon alloy in the hopper 4, when adding material, it can be completed simply through the conveying component 2. The adding process is time-saving, labor-saving, efficient, and reduces safety risks. Furthermore, sufficient silicon-carbon alloy can be added within the limited steel tapping time without the need for additional, more expensive ferrosilicon and carbon raisers, further reducing production costs.

[0023] Furthermore, a protective cover 71 is hinged to the upper end of the feeding bin 7. The hinge structure can be a hinge or a pivot. When the operator feeds the bagged silicon-carbon alloy into the feeding bin 7, the protective cover 71 needs to be flipped open. After feeding, the protective cover 71 is flipped closed to ensure that the feeding bin 7 is in a closed state at the top during the bag breaking process of the bag breaking component 8.

[0024] Furthermore, the frame 1 includes two sets of main beams 11 distributed horizontally and horizontally and two sets of crossbeams 12 distributed front and back. The two sets of crossbeams 12 are fixedly connected to the lower surfaces of the two sets of main beams 11. The two sets of main beams 11 and the two sets of crossbeams 12 together form a grid structure.

[0025] Specifically, push handles 13 are also fixedly connected to the front ends of the two sets of main beams 11.

[0026] Furthermore, the conveying assembly 2 includes two sets of rollers 21, a conveyor belt 22, and a drive motor 24. The two shaft ends of the two sets of rollers 21 are rotatably connected to bearing seats 211, and the bearing seats 211 are fixedly connected to the main beam 11 on the corresponding side. The conveyor belt 22 is sleeved on the outside of the two sets of rollers 21. Multiple sets of idlers 23 for supporting the upper surface of the conveyor belt 22 are installed at equal intervals from front to back on the upper ends of the two sets of main beams 11. The output shaft of the drive motor 24 is fixed to the shaft end of one of the sets of rollers 21.

[0027] Specifically, the output shaft of the drive motor 24 drives one set of rollers 21 to rotate, thereby driving the conveyor belt 22 to move. When the silicon-carbon alloy falls from the discharge hopper 42 onto the conveyor belt 22, it will be transported from front to back along the conveyor belt 22, and finally slide into the ladle through the chute of the furnace rear platform.

[0028] Furthermore, both ends of the two sets of crossbeams 12 are rotatably connected to movable wheels 121, and the front and rear ends of the two sets of main beams 11 on opposite sides are fixedly connected to ear seats 14, with support columns 15 threaded inside the ear seats 14.

[0029] Specifically, the device can be easily moved using the casters 121. After loading in the charging area, the entire device is moved to the furnace rear platform where feeding is required using the casters 121, ensuring that the discharge end of the conveyor assembly 2 is above the chute. Once in position, the support column 15 is manually rotated so that its lower end contacts the ground, ensuring that the device does not shift or shake during feeding. Furthermore, to further enhance the stability of the device during feeding, obstructions can be placed on both sides of each caster 121 to effectively prevent any unnecessary displacement due to vibration or external forces during feeding.

[0030] Furthermore, the support frame 3 includes two sets of columns 31, which are fixedly connected to the front and rear sides of the upper surface of the corresponding main beam 11, respectively. The upper ends of the two sets of columns 31 are jointly fixed with a fixing beam 32, which is fixedly connected to the side wall of the silo 4. An intermediate beam 33 is fixedly connected between the two sets of columns 31.

[0031] Furthermore, the protective component 5 includes a C-shaped protective frame 51 with an opening facing the rear. Both sides of the C-shaped protective frame 51 are fixedly connected to the corresponding middle beam 33 via multiple sets of I-beams 54. The lower edge of the C-shaped protective frame 51 is fixedly connected to a lower soft edge 52 that contacts the upper surface of the conveyor belt 22.

[0032] Specifically, the C-shaped protective frame 51 includes a square plate 511 and two sets of side plates 512. The front ends of the two sets of side plates 512 are welded and fixed to the left and right sides of the square plate 511. The I-beam 54 fixes the side plates 512 to the intermediate beam 33. By setting the protective component 5, the material feeding area of ​​the feeding hopper 42 can be semi-enclosed to prevent material from splashing or leaking during the feeding process. Secondly, the lower soft edge 52 can effectively prevent silicon carbide alloy from overflowing from the gap between the conveyor belt 22 and the C-shaped protective frame 51 during the falling process.

[0033] Furthermore, the screen plate 61 includes a rectangular frame 611, and multiple sets of screen bars 612 are fixedly arranged at equal intervals from front to back on the inner side of the rectangular frame 611, forming a material drop gap between two adjacent sets of screen bars 612.

[0034] Specifically, the sieve plate 61 can effectively support the bagged silicon-carbon alloy. When the outer bag of the silicon-carbon alloy is broken open by the bag-breaking component 8, the silicon-carbon alloy falls into the hopper 4 through the material drop gap. At this time, the outer bag of the silicon-carbon alloy will remain in the feeding hopper 7. After the bag breaking is completed, the operator can remove the outer bag from the feeding hopper 7. Secondly, the multiple sets of sieve bars 612 can also be used to screen large-sized materials. When the material contains large particles, the sieve bars 612 can effectively isolate them, ensuring that only materials of appropriate size pass through the sieve plate 61.

[0035] Furthermore, multiple sets of movable holes 43 are opened on the upper ends of the left and right side walls of the hopper 4. Multiple sets of support beams 44 for supporting the material discharge plate 6 are horizontally fixedly connected to the inner side of the feed hopper inlet 41. The bag breaking assembly 8 includes multiple sets of movable rods 81 corresponding to the movable holes 43 and a set of hydraulic cylinders 85. The movable rods 81 are horizontally slidably installed inside the corresponding movable holes 43. The ends of the multiple sets of movable rods 81 located inside the hopper 4 are vertically fixedly provided with a long strip seat 82. The long strip seat 82 is slidably connected to the lower surface of the support beam 44. Multiple sets of spikes 83 are fixedly connected at equal intervals from front to back at the upper end of the long strip seat 82. The spikes 83 penetrate the material discharge gap upward and extend to the upper end of the screen plate 61. The ends of the multiple sets of movable rods 81 located outside the hopper 4 are jointly fixedly provided with a drive plate 84. The side of the drive plate 84 away from the movable rods 81 is fixed to the telescopic end of the hydraulic cylinder 85. The side wall of the hopper 4 is fixedly connected with a support seat 86 for installing the hydraulic cylinder 85.

[0036] Specifically, the workers place bags of silicon-carbon alloy into the feeding hopper 7, which is located above the screen plate 61. At this time, the spikes 83 will pierce into the outer casing of the silicon-carbon alloy. When it is necessary to break the bag, two sets of hydraulic cylinders 85 are activated. The extension and retraction ends of the two sets of hydraulic cylinders 85 drive multiple sets of movable rods 81, long strip seats, and spikes 83 away from each other through their respective drive plates 84, thereby achieving the purpose of breaking the bag.

[0037] It should be noted that during the bag breaking process, the hydraulic cylinder can be cyclically extended and retracted at 85 degrees, so that the material in the bag can be effectively poured out, reducing residue.

[0038] Specifically, the spikes 83 can adopt a triangular prism structure, with the upper tip effectively piercing the outer bag when the silicon-carbon alloy is inserted into the bag. Secondly, when the two sets of spikes 83 are far apart, their side edges can effectively tear the outer bag, further accelerating the bag-breaking process and making it easier to pour out the material inside the bag.

[0039] Furthermore, the inner side of the discharge port 42 is also connected to a control valve assembly 9 for controlling the discharge flow rate of the discharge port 42. The control valve assembly 9 includes two sets of valve plates 91 arranged symmetrically on the left and right and two sets of hydraulic cylinders 93. The upper surface of the middle beam 33 of the two sets of support frames 3 is also fixedly connected to a fixed seat 92 for installing the hydraulic cylinder 93. The front and rear sides of the discharge port 42 are symmetrically fixedly provided with guide rails 94. The upper end of the guide rails 94 is also fixedly connected to multiple sets of connecting seats 941 for strengthening its structure. The multiple sets of connecting seats 941 are welded to the outer wall of the hopper 4. The front and rear sides of the valve plates 91 are slidably connected to the guide rails 94 at the corresponding positions. The side of the two sets of valve plates 91 that is far apart is fixed to the telescopic end of the hydraulic cylinder 93.

[0040] Specifically, during the feeding process, both sets of valve plates 91 can be closed, putting the hopper 4 in a closed state. This effectively stores the silicon-carbon alloy while preventing dust from spilling out during bag breaking and dumping. When it is necessary to add material to the ladle, the telescopic ends of the two sets of hydraulic cylinders 93 are retracted, causing the two sets of valve plates 91 to move away from each other, thus opening the discharge port 42. Furthermore, the size of the discharge opening 42 can be adjusted by controlling the retraction length of the telescopic ends of the hydraulic cylinders 93 to meet the feeding flow requirements of different environments.

[0041] Furthermore, the front and rear sides of the valve plate 91 are fixedly connected with guide blocks 915 that cooperate with the corresponding guide rails 94. When the valve plate 91 is opened, the valve plate 91 drives the guide blocks 915 to slide within the corresponding guide rails 94. The guide rails 94 guide and limit the guide blocks 915, ensuring that the valve plate 91 can open or close along a predetermined path.

[0042] Furthermore, such as Figure 7 As shown, the valve plate 91 is a rectangular plate 911, and a cutting edge is provided on the side where the two sets of valve plates 91 are close together. This ensures that when the two sets of valve plates 91 are closed during the feeding process, the material can be effectively crushed, thereby ensuring that the valve plate 91 can close smoothly and avoiding material blockage. A reinforcing frame 912 and an angle iron strip 913 are welded to the lower surface of the rectangular plate 911. The angle iron strip 913 is welded to the lower surface of the cutting edge of the rectangular plate 911, and multiple sets of triangular plates 914 are welded to the inner side of the angle iron strip 913. The reinforcing frame 912 is welded to the lower surface of the rectangular plate 911 and located on one side of the angle iron strip 913 to enhance the structural strength of the valve plate 91.

[0043] Furthermore, the upper edge of the C-shaped protective frame 51 is fixedly connected with an upper soft edge 53, which contacts the two sets of valve plates 91. This effectively prevents the silicon-carbon alloy from escaping from the gap between the valve plate 91 and the C-shaped protective frame 51 during the falling process. It not only effectively prevents material leakage but also plays a good role in dust prevention.

[0044] It should be noted that: 1. The drive motor 24, hydraulic cylinder 85, and hydraulic cylinder 93 in this utility model are all electrically connected to the control terminal, and their operation can be controlled through the control terminal. All circuit structures involved are existing technologies. 2. Since the silicon-carbon alloy is packaged in small bags of a fixed weight, the total weight of silicon-carbon alloy to be added can be determined based on the number of bags used during the feeding process. Furthermore, a weighbridge can be installed in the loading area, allowing for feeding based on the weighbridge display during the loading process.

[0045] The above are merely preferred embodiments of this utility model and are not intended to limit this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A silicon-carbon alloy feeding device for steelmaking, characterized in that: The assembly includes a frame (1) and a hopper (4). A conveying assembly (2) for conveying silicon-carbon alloy is fixedly connected to the upper end of the frame (1). The hopper (4) is fixedly connected to the upper end of the frame (1) by two sets of left and right support frames (3). The hopper (4) is located directly above the conveying assembly (2). The upper end of the hopper (4) is provided with a feed inlet (41), and the lower end of the hopper (4) is provided with a discharge outlet (42). A protective component (5) is connected between the discharge outlet (42) and the conveying assembly (2). The inner surface of the feed inlet (41) is... A feeding plate (6) is fixedly connected to the side. The feeding plate (6) includes a screen plate (61) and two sets of cover plates (62). The screen plate (61) is fixedly connected to the middle position of the feed hopper (41). The two sets of cover plates (62) are fixedly connected to the left and right sides of the screen plate (61). A feeding hopper (7) is fixedly connected to the upper end of the screen plate (61). A protective cover (71) is hinged to the upper end of the feeding hopper (7). Two sets of bag-breaking components (8) for breaking silicon-carbon alloy outer bags are also connected to the inner side of the feed hopper (41).

2. The silicon-carbon alloy feeding device for steelmaking according to claim 1, characterized in that, The frame (1) includes two sets of main beams (11) distributed in parallel from left to right and two sets of crossbeams (12) distributed in parallel from front to back. The two sets of crossbeams (12) are fixedly connected to the lower surface of the two sets of main beams (11). The two sets of main beams (11) and the two sets of crossbeams (12) together form a grid structure.

3. The silicon-carbon alloy feeding device for steelmaking according to claim 2, characterized in that, The conveying assembly (2) includes two sets of rollers (21), a conveyor belt (22) and a drive motor (24). The two shaft ends of the two sets of rollers (21) are rotatably connected to bearing seats (211). The bearing seats (211) are fixedly connected to the main beam (11) on the corresponding side. The conveyor belt (22) is sleeved on the outside of the two sets of rollers (21). Multiple sets of idlers (23) for supporting the upper surface of the conveyor belt (22) are installed at equal intervals from front to back on the upper ends of the two sets of main beams (11). The output shaft of the drive motor (24) is fixed to the shaft end of one of the sets of rollers (21).

4. A silicon-carbon alloy feeding device for steelmaking according to claim 2, characterized in that, Both ends of the two sets of crossbeams (12) are rotatably connected to moving wheels (121), and the front and rear ends of the two sets of main beams (11) are fixedly connected to ear seats (14) on the opposite side. The ear seats (14) are internally threaded with support columns (15).

5. A silicon-carbon alloy feeding device for steelmaking according to claim 2, characterized in that, The support frame (3) includes two sets of columns (31). The two sets of columns (31) are fixedly connected to the front and rear sides of the upper surface of the corresponding main beam (11). The upper ends of the two sets of columns (31) are jointly fixed with a fixing beam (32). The fixing beam (32) is fixedly connected to the side wall of the silo (4). An intermediate beam (33) is fixedly connected between the two sets of columns (31).

6. A silicon-carbon alloy feeding device for steelmaking according to claim 5, characterized in that, The protective component (5) includes a C-shaped protective frame (51) with an opening facing the rear. The left and right sides of the C-shaped protective frame (51) are fixedly connected to the middle beam (33) on the corresponding side by multiple sets of I-beams (54). The lower edge of the C-shaped protective frame (51) is fixedly connected to a lower soft edge (52), and the upper edge of the C-shaped protective frame (51) is fixedly connected to an upper soft edge (53).

7. The silicon-carbon alloy feeding device for steelmaking according to claim 1, characterized in that, The screen plate (61) includes a rectangular frame (611), and multiple sets of screen bars (612) are fixedly arranged at equal intervals from front to back on the inner side of the rectangular frame (611), and a material drop gap is formed between two adjacent sets of screen bars (612).

8. A silicon-carbon alloy feeding device for steelmaking according to claim 7, characterized in that, The upper ends of the left and right side walls of the hopper (4) are provided with multiple sets of movable holes (43). The inner side of the feed hopper (41) is horizontally fixedly connected with multiple sets of support beams (44) for supporting the feed plate (6). The bag breaking assembly (8) includes multiple sets of movable rods (81) corresponding to the movable holes (43) and a set of hydraulic cylinders (85). The movable rods (81) are horizontally slid inside the corresponding movable holes (43). The ends of the multiple sets of movable rods (81) located inside the hopper (4) are vertically fixed with a long strip seat (82). The upper end of the long strip seat (82) is equidistantly connected to the lower surface of the support beam (44). Multiple sets of spikes (83) are fixedly connected from front to back. The spikes (83) penetrate the material drop gap and extend to the upper end of the screen plate (61). The drive plate (84) is fixedly mounted on one end of the multiple sets of movable rods (81) located outside the hopper (4). The side of the drive plate (84) away from the movable rods (81) is fixed to the telescopic end of the hydraulic cylinder (85). The side wall of the hopper (4) is fixedly connected to the support seat (86) for installing the hydraulic cylinder (85).

9. A silicon-carbon alloy feeding device for steelmaking according to any one of claims 1 to 8, characterized in that, The inner side of the discharge port (42) is also connected to a control valve assembly (9) for controlling the discharge flow rate of the discharge port (42).

10. A silicon-carbon alloy feeding device for steelmaking according to claim 9, characterized in that, The control valve assembly (9) includes two sets of valve plates (91) arranged symmetrically on the left and right and two sets of hydraulic cylinders (93). The upper surface of the middle beam (33) of the two sets of support frames (3) is also fixedly connected to the fixing seat (92) for installing the hydraulic cylinder (93). The front and rear sides of the discharge hopper (42) are symmetrically fixed with guide rails (94). The front and rear sides of the valve plate (91) are slidably connected with the guide rails (94) at the corresponding positions. The side of the two sets of valve plates (91) that is far apart is fixed to the telescopic end of the hydraulic cylinder (93).

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