Stable feeding device for antimony blast furnace

Abstract

The utility model relates to antimony blast furnace technical field, especially disclose a kind of stable feeding device of antimony blast furnace, comprising: furnace body, the outside wall of furnace body is fixedly installed with feed pipe, feed pipe is connected with the inside of furnace body, and one end of feed pipe is fixedly installed with through pipe, U-shaped mounting bracket is set in through pipe, the top surface of U-shaped mounting bracket is fixedly installed with feeding caterpillar belt, when needing to adjust feeding angle according to furnace body feeding demand or raw material conveying state, telescopic cylinder is fixed in the bottom surface inside through pipe, its telescopic end pushes and connects the sliding of plate along the bottom surface inside through pipe, and connecting plate is rotatably connected with connecting rod through the semicircular rotary seat of both ends, and the other end of connecting rod is rotatably engaged with the mounting seat on the mounting plate of U-shaped mounting bracket bottom surface, simultaneously, U-shaped mounting bracket is rotatably connected with mounting rod in through pipe through inner side wall, under the push-pull force of telescopic cylinder, U-shaped mounting bracket is realized with mounting rod as pivot angle adjustment.

Description

Technical Field

[0001] This utility model relates to the field of antimony blast furnace technology, and in particular to a stable feeding device for an antimony blast furnace. Background Technology

[0002] The antimony blast furnace is a vertical metallurgical furnace that occupies a core position in the pyrometallurgical antimony smelting process. It is a key piece of equipment used to produce crude antimony or antimony oxide (antimony trioxide) through a high-temperature reduction reaction after pretreatment such as roasting and sintering of antimony-containing sulfide ores (such as stibnite) or oxide ores. It uses high-temperature air (or oxygen-enriched air) blown in to provide the heat and oxygen required for the reaction, driving the complex physicochemical processes such as oxidation, reduction, and slag formation within the furnace to proceed efficiently.

[0003] In antimony smelting, the blast furnace is the core equipment for the reduction and smelting of antimony ore. The stability of the feeding system directly affects the balance of the temperature and airflow fields inside the furnace, as well as the final smelting efficiency and product quality. Currently, the conveying channels of traditional feeding devices are mostly integrated fixed structures with their inclination angles determined during manufacturing. This makes it impossible to adapt them to the feeding requirements of different smelting stages of the blast furnace or the on-site installation environment. When the raw material particle size is fine and prone to accumulation, or when the smelting load needs to be increased, the fixed-angle conveying channel is prone to problems such as raw material stagnation and unbalanced conveying speed. Furthermore, the height of the feed inlet varies depending on the specifications of the blast furnace. Differences in temperature and difficulty in matching fixed structures lead to deviations in the feeding trajectory, affecting the uniformity of raw material distribution within the furnace. Furthermore, in existing devices, the connection between the storage silo and the conveying mechanism is mostly a direct discharge design, lacking a stable transition conveying structure. When the raw material has a slightly high moisture content or contains a small amount of lumps, it is easy to accumulate and block at the outlet of the storage silo. Moreover, the relative position of the conveying mechanism and the storage silo is fixed. If the conveying angle is adjusted, it is very easy to cause gaps or misalignments at the connection between the two, resulting in raw material spillage or conveying interruption. In severe cases, it is necessary to stop the machine for cleaning, affecting the continuity of smelting. In view of this, we propose a stable feeding device for an antimony blast furnace. Utility Model Content

[0004] Technical problems to be solved To address the shortcomings of existing technologies, this invention solves the problem that in antimony smelting, the blast furnace is the core equipment for the reduction and smelting of antimony ore, and the stability of the feeding system directly affects the balance of the temperature field and airflow field inside the furnace, as well as the final smelting efficiency and product quality. Currently, the conveying channels of traditional feeding devices are mostly integrated fixed structures, and their inclination angle is determined during manufacturing. This makes it impossible to adapt them to the feeding requirements of different smelting stages of the blast furnace or the on-site installation environment. When the raw material particle size is fine and prone to accumulation, or when the smelting load needs to be increased, the fixed-angle conveying channel is prone to problems such as raw material stagnation and unbalanced conveying speed. Meanwhile, the fixed structure is difficult to match the different feed inlet heights of blast furnaces of different specifications, which leads to deviation of the feed trajectory and affects the uniformity of raw material distribution in the furnace. In addition, in the existing equipment, the connection between the storage bin and the conveying mechanism is mostly a direct drop design, lacking a stable transition conveying structure. When the raw material has a slightly high moisture content or a small amount of lumps, it is easy to accumulate and block at the outlet of the storage bin. Moreover, the relative position of the conveying mechanism and the storage bin is fixed. If the conveying angle is adjusted, it is very easy to cause gaps or misalignment at the connection between the two, resulting in raw material spillage or conveying interruption. In severe cases, it is necessary to stop the machine for cleaning, which is a technical problem that affects the continuity of smelting.

[0005] Technical solution To achieve the above objectives, this utility model provides the following technical solution: A stable feeding device for an antimony smelting blast furnace includes: The furnace body has a feed pipe fixedly installed on its outer side wall. The feed pipe is connected to the interior of the furnace body. A through pipe is fixedly installed at one end of the feed pipe. A U-shaped mounting frame is installed inside the through pipe. A feeding conveyor is fixedly installed on the top surface of the U-shaped mounting frame. A storage box is slidably installed at one end of a through pipe. A storage hopper is opened inside the storage box, and a feeding auger is rotatably installed inside the storage hopper. An adjustment component is disposed inside the through pipe and is used to adjust the tilt angle of the U-shaped mounting bracket.

[0006] Preferably, the adjusting assembly includes a mounting rod, which is fixedly installed inside the through pipe. The outer wall of the mounting rod is rotatably connected to the inner wall of the U-shaped mounting bracket. A mounting plate is fixedly installed on one side of the bottom surface of the U-shaped mounting bracket. Two mounting seats are fixedly installed on the bottom surface of the mounting plate. A connecting rod is rotatably installed in each of the two mounting seats. A semi-circular rotating seat is rotatably installed at the bottom end of each of the two connecting rods. The same connecting plate is fixedly installed between the two semi-circular rotating seats.

[0007] Preferably, the adjusting assembly further includes a telescopic cylinder, which is fixedly installed on the inner bottom surface of the through pipe. One end of the telescopic cylinder is fixedly connected to one side of the connecting plate, and the bottom surface of the connecting plate is slidably connected to the inner bottom surface of the through pipe.

[0008] Preferably, a servo motor is fixedly installed on the top surface of the storage box, and the bottom end of the output shaft of the servo motor passes through the top surface of the storage box and is fixedly connected to the top end of the feeding auger.

[0009] Preferably, a material guide trough is provided on one side of the storage box, one side of the material guide trough is connected to the storage bin, and the other side of the material guide trough is connected to the top surface of the feeding conveyor belt.

[0010] Preferably, two fixed seats are fixedly installed on the side of the U-shaped mounting frame opposite to the storage box, and two rotating blocks are fixedly installed on the side of the storage box opposite to the U-shaped mounting frame, with the two rotating blocks rotatably installed in the two fixed seats respectively.

[0011] Preferably, a feed pipe is fixedly installed on one side of the storage box, and one end of the feed pipe passes through one side of the storage box and extends into the interior.

[0012] Beneficial effects Workers first feed the raw materials through the inlet pipe into the storage bin of the storage box for temporary storage. After starting the servo motor, its output shaft drives the feeding auger in the storage bin to rotate. The feeding auger, through a spiral pushing action, transports the raw materials in the storage bin to the guide chute. Since the guide chute is connected to the top surface of the feeding conveyor belt, the raw materials fall smoothly onto the surface of the feeding conveyor belt through the guide chute. When the feeding conveyor belt is running, it transports the raw materials towards the furnace body. When it is necessary to adjust the feeding angle according to the furnace body's feeding requirements or the raw material conveying status, the telescopic cylinder is fixed to the bottom surface inside the through pipe. Its telescopic end pushes the connecting plate to slide along the bottom surface inside the through pipe. The connecting plate is rotatably connected to the connecting rod through the semi-circular rotating seats at both ends. The other end of the connecting rod is rotatably engaged with the mounting seat on the mounting plate on the bottom surface of the U-shaped mounting frame. At the same time, the U-shaped mounting frame is rotatably connected to the mounting rod inside the through pipe through its inner wall. Under the pushing and pulling force of the telescopic cylinder, the U-shaped mounting frame adjusts its tilt angle around the mounting rod as the axis. During this process, the storage box is rotatably connected to the fixed seat on the U-shaped mounting frame through the rotating block. It can adjust its position synchronously with the angle change of the U-shaped mounting frame to ensure that the connection between the guide chute and the feeding conveyor is not affected. Finally, the raw material conveyed by the feeding conveyor enters the feeding pipe along the conveying path adjusted to the appropriate angle, and is then accurately fed into the furnace body through the feeding pipe to complete the stable feeding process. Attached Figure Description

[0013] 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.

[0014] Figure 1 This is an overall structural diagram of the present invention; Figure 2 This is a structural diagram of the adjustment component of this utility model; Figure 3 This is a structural diagram of the internal structure of the storage box of this utility model; Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0015] Legend: 1. Furnace body; 2. Feed pipe; 3. Through pipe; 4. Storage bin; 5. Feed pipe; 6. U-shaped mounting frame; 7. Feeding conveyor belt; 8. Mounting rod; 9. Mounting plate; 10. Mounting seat; 11. Connecting rod; 12. Semi-circular rotating seat; 13. Connecting plate; 14. Telescopic cylinder; 15. Storage bin; 16. Feeding auger; 17. Guide chute; 18. Servo motor; 19. Fixed seat; 20. Rotating block. Detailed Implementation

[0016] Example 1: Please see Figure 1 - Figure 4 As shown, this embodiment provides a stable feeding device for an antimony smelting blast furnace.

[0017] include: A furnace body 1 has a feed pipe 2 fixedly installed on its outer wall, which is connected to the interior of the furnace body 1. A connecting pipe 3 is fixedly installed at one end of the feed pipe 2, and a U-shaped mounting bracket 6 is installed inside the connecting pipe 3. A feeding conveyor 7 is fixedly installed on the top surface of the U-shaped mounting bracket 6. A storage bin 4 is slidably installed at one end of the connecting pipe 3. A storage hopper 15 is opened inside the storage bin 4, and a feeding auger 16 is rotatably installed inside the storage hopper 15. An adjustment component is set inside the connecting pipe 3 and is used to adjust the U-shaped mounting bracket. At an inclination angle of 6, the worker first feeds the raw material through the feed pipe 5 into the storage bin 15 of the storage box 4 for temporary storage. After starting the servo motor 18, its output shaft drives the feeding auger 16 in the storage bin 15 to rotate. The feeding auger 16, through the spiral pushing action, transports the raw material in the storage bin 15 to the guide chute 17. Since the guide chute 17 is connected to the top surface of the feeding conveyor 7, the raw material falls smoothly onto the surface of the feeding conveyor 7 through the guide chute 17. When the feeding conveyor 7 is running, it transports the raw material towards the furnace body 1. When it is necessary to... When adjusting the feeding angle according to the feeding requirements of the furnace body 1 or the raw material conveying status, the telescopic cylinder 14 is fixed to the bottom surface inside the pipe 3. Its telescopic end pushes the connecting plate 13 to slide along the bottom surface inside the pipe 3. The connecting plate 13 is rotatably connected to the connecting rod 11 through the semi-circular rotating seats 12 at both ends. The other end of the connecting rod 11 is rotatably engaged with the mounting seat 10 on the mounting plate 9 on the bottom surface of the U-shaped mounting bracket 6. At the same time, the U-shaped mounting bracket 6 is rotatably connected to the mounting rod 8 inside the pipe 3 through its inner side wall. With force, the U-shaped mounting frame 6 adjusts its tilt angle around the mounting rod 8. During this process, the storage box 4 is rotatably connected to the fixed seat 19 on the U-shaped mounting frame 6 via the rotating block 20. It can adjust its position synchronously with the angle change of the U-shaped mounting frame 6, ensuring that the connection between the guide chute 17 and the feeding conveyor 7 is not affected. Finally, the raw material conveyed by the feeding conveyor 7 enters the feed pipe 2 along the conveying path adjusted to a suitable angle, and is then accurately fed into the furnace body 1 through the feed pipe 2, completing a stable feeding process.

[0018] Example 2: This embodiment provides a stable feeding device for an antimony blast furnace, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0019] The adjustment component includes a mounting rod 8, which is fixedly installed inside the through pipe 3. The outer wall of the mounting rod 8 is rotatably connected to the inner wall of the U-shaped mounting frame 6. A mounting plate 9 is fixedly installed on one side of the bottom surface of the U-shaped mounting frame 6. Two mounting seats 10 are fixedly installed on the bottom surface of the mounting plate 9. A connecting rod 11 is rotatably installed inside each of the two mounting seats 10. A semi-circular rotating seat 12 is rotatably installed at the bottom end of each of the two connecting rods 11. A common connecting plate 13 is fixedly installed between the two semi-circular rotating seats 12. When it is necessary to adjust the feeding angle according to the feeding requirements of the furnace body 1 or the raw material conveying status, the telescopic cylinder 14 is fixed to the bottom surface inside the through pipe 3. Its telescopic end pushes the connecting plate 13 to slide along the bottom surface inside the through pipe 3. The connecting plate 13 is rotatably connected to the connecting rod 11 through the semi-circular rotating seats 12 at both ends. The other end of the connecting rod 11 is rotatably engaged with the mounting seat 10 on the mounting plate 9 on the bottom surface of the U-shaped mounting frame 6.

[0020] Example 3: This embodiment provides a stable feeding device for an antimony blast furnace, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0021] The adjustment assembly also includes a telescopic cylinder 14, which is fixedly installed on the inner bottom surface of the pipe 3. One end of the telescopic cylinder 14 is fixedly connected to one side of the connecting plate 13, and the bottom surface of the connecting plate 13 is slidably connected to the inner bottom surface of the pipe 3. Under the pushing and pulling force of the telescopic cylinder 14, the U-shaped mounting bracket 6 adjusts its tilt angle around the mounting rod 8.

[0022] Example 4: This embodiment provides a stable feeding device for an antimony blast furnace, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0023] A servo motor 18 is fixedly installed on the top surface of the storage bin 4. The bottom end of the output shaft of the servo motor 18 passes through the top surface of the storage bin 4 and is fixedly connected to the top end of the feeding auger 16. After the servo motor 18 is started, its output shaft drives the feeding auger 16 in the storage bin 15 to rotate. The feeding auger 16 conveys the raw materials in the storage bin 15 to the guide trough 17 through the spiral pushing action.

[0024] Example 5: This embodiment provides a stable feeding device for an antimony blast furnace, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0025] The storage bin 4 has a guide trough 17 on one side, which is connected to the storage bin 15 on one side and to the top surface of the feeding conveyor 7 on the other side. Since the guide trough 17 is connected to the top surface of the feeding conveyor 7, the raw material falls smoothly into the surface of the feeding conveyor 7 through the guide trough 17. When the feeding conveyor 7 is running, it transports the raw material towards the furnace body 1.

[0026] Example 6: This embodiment provides a stable feeding device for an antimony blast furnace, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0027] Two fixed seats 19 are fixedly installed on the side of the U-shaped mounting frame 6 opposite to the storage box 4, and two rotating blocks 20 are fixedly installed on the side of the storage box 4 opposite to the U-shaped mounting frame 6. The two rotating blocks 20 are respectively rotatably installed in the two fixed seats 19. The storage box 4 is rotatably connected to the fixed seats 19 on the U-shaped mounting frame 6 through the rotating blocks 20, and its position can be adjusted synchronously with the angle change of the U-shaped mounting frame 6 to ensure that the communication state between the guide chute 17 and the feeding track 7 is not affected.

[0028] Example 7: This embodiment provides a stable feeding device for an antimony blast furnace, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0029] The storage bin 4 is fixedly equipped with a feed pipe 5 on one side. One end of the feed pipe 5 passes through one side of the storage bin 4 and extends into the interior. The other end of the feed pipe 5 is connected to an external feeding device. The feed pipe 5 can continuously and stably transport the raw materials into the storage bin 4, ensuring that all the raw materials can enter the storage bin 4 and provide sufficient raw material reserves for subsequent stable feeding.

[0030] Working principle: The worker first puts the raw material into the storage bin 15 of the storage box 4 through the feed pipe 5 for temporary storage. After starting the servo motor 18, its output shaft drives the feeding auger 16 in the storage bin 15 to rotate. The feeding auger 16 pushes the raw material in the storage bin 15 to the guide chute 17 through the spiral pushing action. Since the guide chute 17 is connected to the top surface of the feeding conveyor 7, the raw material falls smoothly into the surface of the feeding conveyor 7 through the guide chute 17. When the feeding conveyor 7 is running, it conveys the raw material towards the furnace body 1. When it is necessary to adjust the feeding angle according to the feeding requirements of the furnace body 1 or the raw material conveying status, the telescopic cylinder 14 is fixed to the bottom surface of the inside of the through pipe 3. Its telescopic end pushes the connecting plate 13 to slide along the bottom surface of the inside of the through pipe 3. The connecting plate 13 is connected to the connecting rod through the semi-circular rotating seats 12 at both ends. 11 is rotatably connected, and the other end of the connecting rod 11 is rotatably engaged with the mounting seat 10 on the mounting plate 9 on the bottom surface of the U-shaped mounting frame 6. At the same time, the U-shaped mounting frame 6 is rotatably connected to the mounting rod 8 in the through pipe 3 through the inner side wall. Under the pushing and pulling force of the telescopic cylinder 14, the U-shaped mounting frame 6 adjusts its tilt angle with the mounting rod 8 as the axis. During this process, the storage box 4 is rotatably connected to the fixed seat 19 on the U-shaped mounting frame 6 through the rotating block 20. It can adjust its position synchronously with the angle change of the U-shaped mounting frame 6 to ensure that the connection between the guide chute 17 and the feeding conveyor 7 is not affected. Finally, the raw material conveyed by the feeding conveyor 7 enters the feed pipe 2 along the conveying path adjusted to the appropriate angle, and is then accurately fed into the furnace body 1 through the feed pipe 2 to complete the stable feeding process.

[0031] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A stable feeding device for an antimony smelting blast furnace, characterized in that, include: Furnace body (1), a feed pipe (2) is fixedly installed on the outer side wall of the furnace body (1), the feed pipe (2) is connected to the interior of the furnace body (1), a through pipe (3) is fixedly installed at one end of the feed pipe (2), a U-shaped mounting bracket (6) is provided inside the through pipe (3), and a feeding track (7) is fixedly installed on the top surface of the U-shaped mounting bracket (6). Storage box (4), the storage box (4) is slidably installed at one end of the through pipe (3), the storage box (4) is provided with a storage bin (15), and a feeding auger (16) is rotatably installed in the storage bin (15). An adjustment component is disposed inside the through pipe (3) and is used to adjust the tilt angle of the U-shaped mounting bracket (6).

2. The stable feeding device for an antimony smelting blast furnace according to claim 1, characterized in that: The adjustment assembly includes a mounting rod (8), which is fixedly installed inside the through pipe (3). The outer side wall of the mounting rod (8) is rotatably connected to the inner side wall of the U-shaped mounting bracket (6). A mounting plate (9) is fixedly installed on one side of the bottom surface of the U-shaped mounting bracket (6). Two mounting seats (10) are fixedly installed on the bottom surface of the mounting plate (9). A connecting rod (11) is rotatably installed inside each of the two mounting seats (10). A semi-circular rotating seat (12) is rotatably installed at the bottom end of each of the two connecting rods (11). The same connecting plate (13) is fixedly installed between the two semi-circular rotating seats (12).

3. The stable feeding device for an antimony smelting blast furnace according to claim 2, characterized in that: The adjustment assembly also includes a telescopic cylinder (14), which is fixedly installed on the inner bottom surface of the through pipe (3). One end of the telescopic cylinder (14) is fixedly connected to one side of the connecting plate (13), and the bottom surface of the connecting plate (13) is slidably connected to the inner bottom surface of the through pipe (3).

4. The stable feeding device for an antimony smelting blast furnace according to claim 1, characterized in that: A servo motor (18) is fixedly installed on the top surface of the storage box (4). The bottom end of the output shaft of the servo motor (18) passes through the top surface of the storage box (4) and is fixedly connected to the top end of the feeding auger (16).

5. The stable feeding device for an antimony smelting blast furnace according to claim 1, characterized in that: The storage box (4) has a guide trough (17) on one side, one side of the guide trough (17) is connected to the storage bin (15), and the other side of the guide trough (17) is connected to the top surface of the feeding track (7).

6. The stable feeding device for an antimony smelting blast furnace according to claim 1, characterized in that: Two fixed seats (19) are fixedly installed on the side of the U-shaped mounting bracket (6) opposite to the storage box (4), and two rotating blocks (20) are fixedly installed on the side of the storage box (4) opposite to the U-shaped mounting bracket (6). The two rotating blocks (20) are respectively rotatably installed in the two fixed seats (19).

7. The stable feeding device for an antimony smelting blast furnace according to claim 1, characterized in that: A feed pipe (5) is fixedly installed on one side of the storage box (4), and one end of the feed pipe (5) passes through one side of the storage box (4) and extends into the interior.

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