Batching and blanking device for ferroalloy submerged arc furnace

Abstract

The utility model discloses a ferroalloy submerged arc furnace burdening and blanking device, which relates to the technical field of submerged arc furnace blanking, and comprises a submerged arc furnace body, a feed port is arranged on the submerged arc furnace body, a blanking assembly is arranged on the feed port, the blanking assembly comprises a hopper and a blanking pipe which are fixedly connected with each other, and the blanking pipe is arranged on the feed port. The hopper is communicated with the discharging pipe, the discharging pipe is matched with the feeding port and located below the feeding port, and stirring pieces are movably attached to the inner wall of the hopper and the inner wall of the discharging pipe through power assemblies. When ingredients block the hopper and the discharging pipe, the power assembly is operated to drive the four stirring pieces to rotate close to the hopper and the discharging pipe, so that the ingredients between the hopper and the discharging pipe are stirred, the blocked ingredients are unblocked, and the problem that the ingredients cannot be blocked when the ingredient discharging device of the ferroalloy submerged arc furnace conducts ingredient discharging on the submerged arc furnace is solved. And material blocks with different sizes may block a hopper and a blanking pipe, so that batching and blanking cannot be smoothly carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of material feeding of submerged arc furnaces, and particularly relates to a batching and material feeding device for ferroalloy submerged arc furnaces. Background Art

[0002] A submerged arc furnace, also known as an electric arc furnace or a resistance furnace, is mainly used for reducing and smelting raw materials such as ores, carbonaceous reducing agents, and solvents. It mainly produces ferroalloys such as ferrosilicon, ferromanganese, ferrochrome, ferrotungsten, and silicomanganese alloy, and is a processing equipment for important industrial raw materials in the metallurgical industry and chemical raw materials such as calcium carbide. When smelting in a submerged arc furnace, raw materials in the bin need to be added into the furnace from the top of the furnace through a feeding pipe.

[0003] The existing patent with the publication number CN218329321U and the name of "Submerged Arc Furnace Material Feeding Device" proposes that by arranging jackets on the outer sides of the inclined section and the feeding section, during the feeding process, due to the influence of gravitational acceleration and falling height, the raw materials impact and rub against the inner wall of the feeding pipe. Especially in the lower left and turning parts of the feeding pipe, the wear is particularly serious, resulting in the damage of the feeding pipe.

[0004] However, when batching and feeding materials into a submerged arc furnace, material blocks of different sizes may block the hopper and the feeding pipe, resulting in the inability to smoothly carry out batching and feeding. Therefore, it is necessary to propose a batching and material feeding device for ferroalloy submerged arc furnaces to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a batching and material feeding device for ferroalloy submerged arc furnaces to solve the problem that when the batching and material feeding device for ferroalloy submerged arc furnaces batches and feeds materials into a submerged arc furnace, material blocks of different sizes may block the hopper and the feeding pipe, resulting in the inability to smoothly carry out batching and feeding.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A batching and material feeding device for ferroalloy submerged arc furnaces includes a submerged arc furnace body, an inlet is opened on the submerged arc furnace body, and a feeding assembly is arranged on the inlet;

[0007] The feeding assembly includes a hopper and a feeding pipe that are fixedly connected to each other. The hopper and the feeding pipe are in communication with each other. The feeding pipe is adapted to the inlet and is located below the inlet. A stirring member is movably attached to the inner walls of the hopper and the feeding pipe through a power assembly. The stirring member includes an inclined portion and a vertical portion. A buffer assembly is arranged on the vertical portion. Four stirring members are evenly distributed annularly around the vertical center line of the hopper;

[0008] Two limiting grooves that are symmetrically distributed about the center line of the feeding pipe are opened on the inner side wall of the feeding pipe. A connecting ring is movably attached in the limiting grooves, and the connecting ring is fixedly connected to each of the four stirring members.

[0009] Preferably, a mounting plate is fixedly arranged at the outer ring of the top of the stirring member, and the four corners of the mounting plate are fixedly connected to the submerged-arc furnace body through bolts.

[0010] Preferably, the power assembly includes a fixed ring and a first gear. The fixed ring is fixedly arranged at the edge of the top of the hopper. The first gear is rotatably arranged on the top of the fixed ring. The end of the stirring member is fixedly connected to the inner wall of the first gear. A base is fixedly arranged on the top of the mounting plate. A motor is fixedly arranged on the top of the base. A second gear is fixedly connected to the rotating shaft end of the motor. The second gear meshes with the first gear.

[0011] Preferably, the buffer assembly includes a plurality of baffles evenly and vertically distributed on the vertical portion. The baffles are rotatably connected to the stirring member through hinges. A first base is fixedly arranged at the bottom of the end of the baffle away from the stirring member. A second base is fixedly arranged on the surface of the stirring member close to the baffle. A telescopic rod and a sleeve rod are respectively rotatably arranged on the first base and the second base. An activity groove is fixedly arranged inside the sleeve rod. A spring is fixedly connected between the end of the telescopic rod that movably extends into the sleeve rod and the end of the activity groove.

[0012] Preferably, a wear-resistant plate is fixedly arranged on the upper surface of the baffle.

[0013] Preferably, a support rod is rotatably arranged at one end of the top of the mounting plate. A cantilever rod is fixedly arranged at the top of the support rod. An electric push rod is arranged at the bottom of the end of the cantilever rod away from the support rod. A cover plate is fixedly arranged at the telescopic end of the electric push rod. The cover plate has the same diameter as the first gear.

[0014] The technical effects and advantages of the present utility model are as follows:

[0015] 1. When the batching blocks the hopper and the feeding pipe, the power assembly is operated to drive the four stirring members to rotate along the hopper and the feeding pipe, so as to stir the batching between the hopper and the feeding pipe, and unblock the blocked batching, solving the problem that when the batching feeding device of the ferroalloy submerged-arc furnace feeds the submerged-arc furnace, the material lumps of different sizes may block the hopper and the feeding pipe, resulting in the failure of the batching feeding to proceed smoothly;

[0016] 2. During the batching feeding process, the batching rushes onto a plurality of baffles from top to bottom in sequence, causing the baffles to rotate downward. The telescopic rod retracts into the sleeve rod, causing the spring to be compressed, and thus acting on the baffles in the reverse direction, so that the batching on the baffles is rebounded. Therefore, during the batching feeding process, the batching can be decelerated, reducing the friction force and collision force with the feeding pipe, and avoiding the problem that the feeding pipe is easily damaged;

[0017] 3. By installing the connecting ring, the integrity of the four stirring parts is improved, and the connecting ring rotates in the limiting groove to limit the rotation trajectory of the stirring parts, so that the stirring parts can rotate along the inner wall of the blanking pipe, improving the stability of the rotation of the stirring parts.

[0018] 4. By setting the mounting plate and bolts, the disassembly and assembly of the blanking component are facilitated, improving the convenience of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 FIG. is a front view structural schematic diagram of a ferroalloy submerged arc furnace batching and blanking device of the present utility model.

[0020] Figure 2 FIG. is a schematic diagram of the structure and power component of the blanking component of the present utility model.

[0021] Figure 3 FIG. is a sectional perspective structural schematic diagram of the blanking component of the present utility model.

[0022] Figure 4 FIG. is a schematic diagram of the structure of the stirring part and the buffer component of the present utility model.

[0023] Figure 5 FIG. is a sectional structural schematic diagram of the buffer component of the present utility model.

[0024] In the figure: 1. Submerged arc furnace body; 2. Mounting plate; 3. Bolt; 4. Hopper; 5. Blanking pipe; 6. Fixed ring; 7. First gear; 8. Stirring part; 9. Limiting groove; 10. Connecting ring; 11. Baffle; 12. Wear-resistant plate; 13. First base; 14. Second base; 15. Sleeve rod; 16. Telescopic rod; 17. Spring; 18. Base; 19. Motor; 20. Second gear; 21. Support rod; 22. Cantilever rod; 23. Electric push rod; 24. Cover plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] The present utility model provides as Figures 1 - 5An alloy ferroalloy submerged arc furnace batching and feeding device shown in the figure includes a submerged arc furnace body 1. An inlet is provided on the submerged arc furnace body 1, and a feeding assembly is arranged on the inlet. The feeding assembly includes a hopper 4 and a feeding pipe 5 that are fixedly connected to each other. The hopper 4 and the feeding pipe 5 are in communication with each other. The feeding pipe 5 is adapted to the inlet and is located below the inlet. When using this device, the smelting batching is put into the hopper 4 and guided into the submerged arc furnace body 1 through the feeding pipe 5. Considering that when the submerged arc furnace is batching and feeding, materials and lumps of different sizes may block the hopper 4 and the feeding pipe 5, resulting in the failure of smooth batching and feeding. Therefore, in this utility model, a stirring member 8 is movably attached to the inner walls of the hopper 4 and the feeding pipe 5 through a power assembly. Four stirring members 8 are evenly distributed in a ring with the vertical center line of the hopper 4 as the axis. When the batching blocks the hopper 4 and the feeding pipe 5, the power assembly is operated to drive the four stirring members 8 to rotate along the inner walls of the hopper 4 and the feeding pipe 5, so as to stir the batching between the hopper 4 and the feeding pipe 5 and unblock the blocked batching, solving the problem that when the alloy ferroalloy submerged arc furnace batching and feeding device batches and feeds the submerged arc furnace, materials and lumps of different sizes may block the hopper 4 and the feeding pipe 5, resulting in the failure of smooth batching and feeding.

[0027] In order to improve the stability of the rotation of the stirring member 8, two limiting grooves 9 symmetrically distributed about the center line of the feeding pipe 5 are provided on the inner side wall of the feeding pipe 5. A connecting ring 10 is movably attached in the limiting groove 9. Fixed connections are provided between the connecting ring 10 and the four stirring members 8. Through the installation of the connecting ring 10, the integrity of the four stirring members 8 is improved, and the connecting ring 10 rotates in the limiting groove 9 to limit the rotation trajectory of the stirring member 8, enabling the stirring member 8 to rotate along the inner wall of the feeding pipe 5.

[0028] Considering that during the feeding process, due to the influence of gravitational acceleration and falling height, the batching impacts and rubs against the inner wall of the feeding pipe 5, resulting in easy damage to the feeding pipe 5. Therefore, the stirring member 8 in this utility model includes an inclined portion and a vertical portion. A buffer assembly is provided on the vertical portion. The buffer assembly includes a number of baffles 11 evenly and vertically distributed on the vertical portion. The baffles 11 are rotatably connected to the stirring member 8 through hinges. A first base 13 is fixedly provided at the bottom of the end of the baffle 11 away from the stirring member 8. A second base 14 is fixedly provided on the surface of the stirring member 8 close to the baffle 11. A telescopic rod 16 and a sleeve rod 15 are respectively rotatably provided on the first base 13 and the second base 14. An activity groove is fixedly provided inside the sleeve rod 15. A spring 17 is fixedly connected between the end of the telescopic rod 16 that movably extends into the sleeve rod 15 and the end of the activity groove.

[0029] Specifically, during the process of ingredient feeding, the ingredients are successively flushed onto multiple baffles 11 from top to bottom, causing the baffles 11 to rotate downward. The telescopic rod 16 retracts into the sleeve rod 15, compressing the spring 17. As a result, the spring 17 acts in the opposite direction on the baffle 11, causing the ingredients on the baffle 11 to bounce back. Thus, during the ingredient feeding process, the ingredients can be decelerated, reducing the frictional force and impact force with the feeding pipe 5 and avoiding the problem of easy damage to the feeding pipe 5.

[0030] Furthermore, a wear-resistant plate 12 is fixedly arranged on the upper surface of the baffle 11. By installing the wear-resistant plate 12, the wear resistance of the baffle 11 is improved.

[0031] Furthermore, the power assembly includes a fixed ring 6 and a first gear 7. The fixed ring 6 is fixedly arranged at the edge of the top of the hopper 4. The first gear 7 is rotatably arranged on the top of the fixed ring 6. The end of the stirring member 8 is fixedly connected to the inner wall of the first gear 7. A base 18 is fixedly arranged on the top of the mounting plate 2. A motor 19 is fixedly arranged on the top of the base 18. The rotating shaft end of the motor 19 is fixedly connected to a second gear 20. Start the motor 19 to drive the second gear 20 to rotate. Since the second gear 20 meshes with the first gear 7, the first gear 7 is driven to rotate, thereby driving the four stirring members 8 on the first gear 7 to rotate synchronously to agitate the materials and dredge the materials in the hopper 4 and the feeding pipe 5, avoiding blocking the hopper 4 and the feeding pipe 5.

[0032] Furthermore, a mounting plate 2 is fixedly arranged on the outer circle at the top of the stirring member 8. The four corners of the mounting plate 2 are fixedly connected to the submerged arc furnace body 1 through bolts 3. By providing the mounting plate 2 and the bolts 3, the disassembly and assembly of the feeding assembly are facilitated, improving the convenience of the device.

[0033] Furthermore, a support rod 21 is rotatably arranged at one end of the top of the mounting plate 2. A cantilever rod 22 is fixedly arranged at the top of the support rod 21. An electric push rod 23 is arranged at the bottom of the end of the cantilever rod 22 away from the support rod 21. The telescopic end of the electric push rod 23 is fixedly provided with a cover plate 24. The cover plate 24 has the same diameter as the first gear 7. When feeding is not required, rotate the support rod 21 to make the cover plate 24 located directly above the first gear 7. Start the electric push rod 23 to drive the cover plate 24 to move downward to seal the first gear 7, improving the convenience of closing and opening the device.

Claims

1. An iron alloy submerged arc furnace batching and feeding device, comprising a submerged arc furnace body (1), characterized in that: The submerged arc furnace body (1) is provided with a feeding port, and a blanking assembly is arranged on the feeding port; The blanking assembly includes a hopper (4) and a blanking pipe (5) which are fixedly connected to each other. The hopper (4) and the blanking pipe (5) are communicated with each other. The blanking pipe (5) is adapted to the feeding port and is located below the feeding port. A stirring member (8) is movably attached to the inner walls of the hopper (4) and the blanking pipe (5) through a power assembly. The stirring member (8) includes an inclined portion and a vertical portion. A buffer assembly is arranged on the vertical portion. Four stirring members (8) are evenly distributed in a ring with the vertical center line of the hopper (4) as the axis; Two limiting grooves (9) symmetrically distributed about the center line of the blanking pipe (5) are formed on the inner side wall of the blanking pipe (5). A connecting ring (10) is movably attached in the limiting grooves (9), and the connecting ring (10) is fixedly connected to each of the four stirring members (8).

2. The burden feeding device for a ferrosilicon submerged arc furnace according to claim 1, characterized in that: An installation plate (2) is fixedly arranged at the outer circle of the top of the stirring member (8), and the four corners of the installation plate (2) are fixedly connected to the submerged arc furnace body (1) through bolts (3).

3. The burden feeding device for ferroalloy submerged arc furnace according to claim 2, characterized in that: The power assembly includes a fixed ring (6) and a first gear (7). The fixed ring (6) is fixedly arranged at the edge of the top of the hopper (4). The first gear (7) is rotatably arranged on the top of the fixed ring (6). The end of the stirring member (8) is fixedly connected to the inner wall of the first gear (7). A base (18) is fixedly arranged at the top of the installation plate (2). A motor (19) is fixedly arranged at the top of the base (18). A second gear (20) is fixedly connected to the rotating shaft end of the motor (19), and the second gear (20) meshes with the first gear (7).

4. The burden feeding device for ferroalloy submerged arc furnace according to claim 3, wherein: The buffer assembly includes a plurality of baffles (11) vertically and evenly distributed on the vertical portion. The baffles (11) are rotatably connected to the stirring member (8) through hinges. A first base (13) is fixedly arranged at the bottom of the end of the baffle (11) far away from the stirring member (8). A second base (14) is fixedly arranged on the surface of the stirring member (8) close to the baffle (11). A telescopic rod (16) and a sleeve rod (15) are respectively rotatably arranged on the first base (13) and the second base (14). An activity groove is fixedly arranged inside the sleeve rod (15). A spring (17) is fixedly connected between the end of the telescopic rod (16) movably extending into the sleeve rod (15) and the end of the activity groove.

5. The burden feeding device for a ferrosilicon submerged arc furnace according to claim 4, wherein: A wear-resistant plate (12) is fixedly arranged on the upper surface of the baffle (11).

6. The burden feeding device for a ferroalloy submerged arc furnace according to claim 3, wherein: A support rod (21) is rotatably arranged at one end of the top of the installation plate (2). A cantilever rod (22) is fixedly arranged at the top of the support rod (21). An electric push rod (23) is arranged at the bottom of the end of the cantilever rod (22) far away from the support rod (21). A cover plate (24) is fixedly arranged at the telescopic end of the electric push rod (23), and the cover plate (24) has the same diameter as the first gear (7).

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