Ore-smelting electric furnace blanking device capable of reducing cutting times of feeding pipe

Abstract

The utility model discloses an ore-smelting electric furnace blanking device capable of reducing the cutting frequency of a feeding pipe, which comprises a feeding pipe body, a top cover is arranged at the upper part in the feeding pipe body, and a mechanism capable of reducing the cutting frequency of the feeding pipe is arranged on the outer side of the feeding pipe body. The mechanism capable of reducing the cutting frequency of the feeding pipe comprises a sleeve, a fixing block and a rivet, and the sleeve is arranged on the outer side of a feeding pipe body. According to the ore-smelting electric furnace discharging device capable of reducing the cutting times of the feeding pipe, the mechanism capable of reducing the cutting times of the feeding pipe is arranged, so that the overhauling frequency is reduced, the labor intensity is reduced, meanwhile, the automatic cleaning mechanism is arranged, the interior of the feeding pipe can be automatically cleaned, blockage in the feeding pipe is avoided, and the working efficiency is improved. And in addition, the air drying mechanism is arranged, air drying treatment can be conducted on materials entering the spiral material pushing equipment, the phenomenon that the materials adhere to the interior of the spiral material pushing equipment is effectively avoided, and the materials can be conveyed normally.

Description

Technical Field

[0001] The utility model relates to the technical field of submerged arc furnaces, in particular to a blanking device for a submerged arc furnace that can reduce the cutting times of a feeding pipe. Background Technique

[0002] A submerged arc furnace is an industrial electric furnace with huge power consumption, also known as an arc electric furnace or a resistance electric furnace, mainly used for reducing and smelting raw materials such as ores, carbonaceous reducing agents, and solvents. In existing submerged arc furnace zinc smelting enterprises, most of the blanking methods are to feed materials through a screw feeding device to a blanking pipe connected to the top of the furnace body and then send them into the furnace. Currently, there are various blanking devices for submerged arc furnaces on the market, but there are still some disadvantages.

[0003] The existing feeding device for submerged arc furnace solves the problems of large temperature change of the furnace charge at the moment of entering the furnace and adhesion of the furnace charge to the top brick of the furnace, ensuring the stable and continuous production of the submerged arc furnace. However, as the furnace age increases, the furnace top will rise upwards, resulting in the need to reduce the length of the feeding pipe as the furnace top rises. In this way, the frequency of maintenance work is high, the maintenance cost is increased, and the labor intensity is increased. At the same time, generally, the top cover of the feeding pipe needs to be opened to clean the feeding pipe, and this cleaning process is rather troublesome and consumes a lot of manpower. In addition, if the material is wet when it enters the screw feeding device, it will cause sticking phenomena in the screw feeding device, resulting in problems such as blockage. For example, the Chinese utility model patent with the authorization publication number CN218764562U discloses a feeding structure for submerged arc furnace, which includes a stainless steel sleeve and a three-way feeding mechanism. The stainless steel sleeve is installed on the inner wall of the charging port at the top of the submerged arc furnace, and the three-way feeding mechanism is fixedly installed on the stainless steel sleeve. The three-way feeding mechanism includes a feeding pipe and a charging pipe that are connected. The upper part of the feeding pipe is provided with a lid that can be opened and closed. The charging pipe is internally provided with a charging screw. The feeding pipe is arranged longitudinally, and the charging pipe is arranged horizontally. The utility model solves the problems of large temperature change of the furnace charge at the moment of entering the furnace and adhesion of the furnace charge to the top brick of the furnace, which cause blockage of the furnace charge during feeding and poor feeding. It reduces the labor intensity of workers and at the same time avoids some safety hazards during operation, ensuring the stable and continuous production of the submerged arc furnace. However, this device solves the problems of large temperature change of the furnace charge at the moment of entering the furnace and adhesion of the furnace charge to the top brick of the furnace, ensuring the stable and continuous production of the submerged arc furnace. However, as the furnace age increases, the furnace top will rise upwards, resulting in the need to reduce the length of the feeding pipe as the furnace top rises. In this way, the frequency of maintenance work is high, the maintenance cost is increased, and the labor intensity is increased. At the same time, generally, the top cover of the feeding pipe needs to be opened to clean the feeding pipe, and this cleaning process is rather troublesome and consumes a lot of manpower. In addition, if the material is wet when it enters the screw feeding device, it will cause sticking phenomena in the screw feeding device, resulting in problems such as blockage. Therefore, we propose a feeding device for submerged arc furnace that can reduce the cutting times of the feeding pipe to facilitate the solution of the problems mentioned above. Summary of the Utility Model

[0004] The purpose of the present utility model is to provide a feeding device for a submerged arc furnace that can reduce the cutting times of the feeding pipe, so as to solve the problems in the current feeding device for a submerged arc furnace mentioned in the above background technology. By solving the problems of large temperature changes of the material entering the furnace instantaneously and the adhesion of the material entering the furnace to the furnace top bricks, the stable and continuous production of the submerged arc furnace is ensured. However, as the furnace age increases, the furnace top rises, resulting in the need to reduce the length of the feeding pipe as the furnace top rises. In this way, the frequency of maintenance work is high, the maintenance cost is increased, and the labor intensity is increased. At the same time, generally, the top cover on the feeding pipe needs to be opened to clean the feeding pipe, which is a relatively troublesome process and consumes a lot of manpower. In addition, if the material is wet when it enters the screw feeding device, it will cause sticking phenomena in the screw feeding device, resulting in problems such as blockage.

[0005] To achieve the above purpose, the present utility model provides the following technical solutions: A feeding device for a submerged arc furnace that can reduce the cutting times of the feeding pipe, including:

[0006] A feeding pipe body, and a top cover is arranged above the inside of the feeding pipe body;

[0007] It further includes:

[0008] A mechanism for reducing the cutting times of the feeding pipe is arranged on the outer side of the feeding pipe body. The mechanism for reducing the cutting times of the feeding pipe includes a sleeve, a fixed block and a rivet. A sleeve is arranged on the outer side of the feeding pipe body, and fixed blocks are symmetrically installed at the front and rear of the right side of the sleeve, and the fixed block and the screw feeding device are fixedly connected by a rivet;

[0009] An automatic cleaning mechanism is arranged inside the feeding pipe body. The automatic cleaning mechanism includes a rotating rod, a scraping plate, an electric telescopic rod, a protective hose and a scraping ring plate. A rotating rod is rotatably installed inside the feeding pipe body, and a motor is connected to the top of the rotating rod, and an electric telescopic rod is installed at the lower end of the rotating rod, and a protective hose is arranged on the outer side of the electric telescopic rod.

[0010] Preferably, an asbestos felt caulking is installed on the outer side of the sleeve.

[0011] Preferably, a scraping plate is installed on the outer side of the rotating rod, and the scraping plate is in close contact with the inner wall of the feeding pipe body.

[0012] Preferably, a scraping ring plate is installed at the output end of the electric telescopic rod, and the outer side of the scraping ring plate is also in close contact with the inside of the feeding pipe body.

[0013] Preferably, the right side of the feeding pipe body is fixedly connected to a screw feeding device, and a feeding port is opened in the upper right of the screw feeding device, and an air supply port is fixedly connected to the upper left of the screw feeding device.

[0014] Preferably, a dustproof net is installed at the lower part of the air supply port, a connecting frame is connected to the upper part of the air supply port, an air supply pipe is installed at the upper middle part of the connecting frame, and a hot air blower is fixedly connected to the lower part of the air supply pipe.

[0015] Preferably, a connecting rod is connected to the right side of the middle part of the spiral pushing device, and a motor is connected to the right side of the connecting rod.

[0016] Compared with the prior art, the utility model has the following beneficial effects: the unloading device for a mineral heating electric furnace capable of reducing the number of times the feed pipe is cut is provided with a mechanism capable of reducing the number of times the feed pipe is cut, thereby reducing the frequency of maintenance and the labor intensity; at the same time, an automatic cleaning mechanism is provided, which can automatically clean the inside of the feed pipe to avoid blockage inside the feed pipe; in addition, an air drying mechanism is provided, which can air dry the material entering the spiral pushing device, effectively avoiding the sticking phenomenon inside the spiral pushing device, so that the conveying material can run normally;

[0017] 1. A feed pipe body, a sleeve, a fixing block and a rivet are provided. The sleeve is installed on the outside of the feed pipe body, and the fixing block is symmetrically installed on the outside of the sleeve. The fixing block and the spiral pusher are fixedly connected by rivets. A set of sleeves is added on the outside of the feed pipe body and connected to the spiral pusher. When the furnace roof rises, the feed pipe body slides upward with the rise of the furnace roof, thereby reducing the number of cutting times of the feed pipe body, thereby reducing the frequency of maintenance and reducing labor intensity;

[0018] 2. A feeding tube body, a rotating rod and a scraper are provided. The rotating rod is provided inside the feeding tube body, and a motor is connected to the top of the rotating rod. Meanwhile, a scraper is provided on the outside of the rotating rod. The scraper is closely fitted to the inside of the feeding tube body. That is, when the motor connected to the top of the rotating rod is turned on, the motor will make the rotating rod rotate. When the rotating rod rotates, the scraper will rotate with the rotation of the rotating rod, thereby scraping the inner wall of the feeding tube body, thereby ensuring the cleanliness of the inside of the feeding tube body.

[0019] 3. An electric telescopic rod, a protective hose and a scraper ring plate are provided. The feeding pipe body will move with the rise of the furnace roof. That is, the length of the scraper and the rotating rod provided inside the feeding pipe body is limited. Therefore, an electric telescopic rod is provided at the lower end of the rotating rod, and a protective hose is provided on the outside of the electric telescopic rod for protection. At the same time, a scraper ring plate is installed at the output end of the electric telescopic rod. The outer side of the scraper ring plate is also closely fitted with the inner wall of the feeding pipe body. That is, when the electric telescopic rod is opened, the output end of the electric telescopic rod can push the scraper ring plate to move up and down, and can also scrape the inside of the feeding pipe body. The scraping range can be adjusted;

[0020] 4. A spiral feeding device, an air supply port, a connecting frame, and an air supply pipe are provided. The spiral feeding device is fixedly connected to the right side of the main body of the feeding pipe. By setting the spiral feeding device, materials can be transported into the main body of the feeding pipe. At the same time, an air supply port is installed above the left side of the main body of the feeding pipe. The air supply port is hollow. A connecting pipe is fixedly connected above the middle of the air supply port. The lower part of the air supply pipe is connected to a hot air blower. That is, when the hot air blower is turned on, hot air can be blown and transmitted through the air supply pipe into the inside of the connecting frame, then into the inside of the air supply port, and finally blown into the inside of the spiral feeding device, so as to dry the materials transported inside the spiral feeding device, preventing the materials from sticking inside the spiral feeding device and avoiding the occurrence of material transportation blockage;

[0021] 5. A dust-proof net is provided. By setting the dust-proof net below the inside of the air supply port, the dust-proof net can prevent a large amount of dust from appearing when the dried materials are stirred and transported. That is, setting the dust-proof net can block a large amount of dust from entering the inside of the air supply port and avoid a large amount of dust sticking inside the air supply port. Brief Description of the Drawings

[0022] Figure 1 is a perspective structural schematic diagram of the present utility model;

[0023] Figure 2 is a perspective structural schematic diagram of the connection of the spiral feeding device, the fixing block, and the rivet of the present utility model;

[0024] Figure 3 is a perspective structural schematic diagram of the connection of the air supply port, the connecting frame, and the air supply pipe of the present utility model;

[0025] Figure 4 is a perspective structural schematic diagram of the connection of the rotating rod, the scraping plate, and the electric telescopic rod of the present utility model;

[0026] Figure 5 is a perspective structural schematic diagram of the connection of the asbestos felt caulking, the top cover, and the rotating rod of the present utility model;

[0027] Figure 6 is a perspective sectional structural schematic diagram of the present utility model.

[0028] In the figure: 1. Main body of the feeding pipe; 2. Sleeve; 3. Asbestos felt caulking; 4. Top cover; 5. Rotating rod; 6. Scraping plate; 7. Electric telescopic rod; 8. Protective hose; 9. Scraping ring plate; 10. Motor; 11. Spiral feeding device; 12. Fixing block; 13. Rivet; 14. Feeding port; 15. Air supply port; 16. Dust-proof net; 17. Connecting frame; 18. Air supply pipe; 19. Hot air blower; 20. Connecting rod. Detailed Embodiment

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0030] Please refer to Figures 1-6 , the present invention provides a technical solution:

[0031] Embodiment 1: To solve the problems existing in the prior art, this embodiment adopts the following technical solution. A charging device for a submerged arc furnace that can reduce the cutting times of the feeding pipe is provided with a feeding pipe body 1; a mechanism for reducing the cutting times of the feeding pipe is arranged outside the feeding pipe body 1, enabling the feeding pipe body 1 to slide upward as the furnace top rises, thereby reducing the cutting times of the feeding pipe; an automatic cleaning mechanism is arranged inside the feeding pipe body 1, which can scrape the materials adhered to the inner wall of the feeding pipe body 1 to ensure that no blockage occurs during feeding; a drying mechanism is arranged above the left side of the screw feeding device 11. By operating the hot air blower 19, hot air can be conveyed into the screw feeding device 11 to dry the materials conveyed inside the screw feeding device 11, so that no adhesion phenomenon occurs inside the screw feeding device 11 during transmission;First, a sleeve 2 is arranged outside the main body 1 of the feeding pipe, and an asbestos felt caulking 3 is arranged outside the sleeve 2. At the same time, fixing blocks 12 are symmetrically installed on the front and back of the outside of the sleeve 2. The spiral feeding device 11 is fixedly connected to the fixing blocks 12 through rivets 13. That is, as the furnace age increases, the furnace top will rise. By setting the sleeve 2, when the furnace top rises, the main body 1 of the feeding pipe will slide upward with the rise of the furnace top, thereby reducing the cutting times of the feeding pipe and lowering the labor intensity. By installing the spiral feeding device 11 on the right side of the main body 1 of the feeding pipe, materials are poured into the inside of the spiral feeding device 11 from the feeding port 14 arranged at the upper right of the spiral feeding device 11. Then, the motor 10 connected to the right end of the connecting rod 20 is turned on. Since the left side of the connecting rod 20 is connected to the spiral feeding device 11, the spiral feeding device 11 will start to operate and can transport the materials into the inside of the main body 1 of the feeding pipe. In addition, an air supply port 15 is installed above the left side of the spiral feeding device 11, and a connecting frame 17 is installed above the air supply port 15. A air supply pipe 18 is fixedly connected to the upper middle of the connecting frame 17, and a hot air blower 19 is connected below the air supply pipe 18. That is, when the hot air blower 19 is turned on, the hot air blower 19 can generate hot air. Through the connection of the air supply pipe 18, it can be transported into the inside of the connecting frame 17 and the air supply port 15, and is transported into the inside of the spiral feeding device 11 from the air supply port 15, so as to air-dry the materials transported inside the spiral feeding device 11, so that the materials will not stick inside the spiral feeding device 11. A dust-proof net 16 is arranged inside the air supply port 15 to block dust. When the materials enter the furnace through the main body 1 of the feeding pipe for a long time, the materials will accumulate and stick to the inner wall of the main body 1 of the feeding pipe over time. That is, the motor 10 connected to the upper end of the rotating rod 5 is turned on, and the motor 10 will cause the rotating rod 5 to rotate. As a result, the scraper 6 connected to the outside of the rotating rod 5 will rotate and scrape the inside of the main body 1 of the feeding pipe to clean the inner wall of the main body 1 of the feeding pipe. At the same time, an electric telescopic rod 7 is arranged at the lower end of the rotating rod 5, and a protective hose 8 is arranged outside the electric telescopic rod 7 for protection. That is, when the electric telescopic rod 7 is turned on, the output end of the electric telescopic rod 7 will push the scraping ring plate 9 to move up and down. Since the outside of the scraping ring plate 9 is closely attached to the inside of the main body 1 of the feeding pipe, the scraping ring plate 9 will move up and down to scrape the inner wall of the main body 1 of the feeding pipe, and the scraping range of the inner wall of the main body 1 of the feeding pipe can be adjusted, so that the inside of the main body 1 of the feeding pipe remains clean for a long time and the feeding efficiency of the materials is ensured.;

[0032] In the existing submerged arc furnace feeding device, as the furnace age increases, the furnace top will rise, resulting in the need to reduce the length of the main body 1 of the feeding pipe as the furnace top rises. In this way, the frequency of maintenance work is high, the maintenance cost is increased, and the labor intensity is increased. Therefore, in this embodiment, through the following technical solutions, such as Figure 3 and Figure 6As shown in the figure, the mechanism for reducing the cutting times of the feeding pipe includes a sleeve 2 arranged outside the feeding pipe body 1. Fixed blocks 12 are symmetrically installed on the front and rear of the outside of the sleeve 2. The fixed blocks 12 and the spiral feeding device 11 are fixedly connected by rivets 13. A set of sleeves 2 is added outside the feeding pipe body 1 and connected to the spiral feeding device 11. When the furnace top rises, the feeding pipe body 1 slides upward with the rise of the furnace top, thus reducing the cutting times of the feeding pipe body 1, further reducing the maintenance frequency, and reducing the labor intensity.

[0033] Embodiment 2: For the existing feeding device of the submerged arc furnace, the top cover 4 on the feeding pipe body 1 needs to be opened to clean the feeding pipe body 1. This cleaning process is rather troublesome and consumes a lot of manpower. Therefore, in this embodiment, through the following technical solutions, as Figure 4 and Figure 6 shown, the automatic cleaning mechanism includes a rotating rod 5 arranged inside the feeding pipe body 1. A motor 10 is connected above the rotating rod 5. At the same time, a scraper 6 is arranged outside the rotating rod 5. The scraper 6 is closely attached to the inside of the feeding pipe body 1. That is, when the motor 10 connected to the top end of the rotating rod 5 is turned on, the motor 10 will cause the rotating rod 5 to rotate. When the rotating rod 5 rotates, the scraper 6 will rotate with the rotation of the rotating rod 5, thereby scraping the inner wall of the feeding pipe body 1, thus ensuring the cleanliness of the inside of the feeding pipe body 1. However, the feeding pipe body 1 will move with the rise of the furnace top. That is, there are limitations in the lengths of the scraper 6 and the rotating rod 5 arranged inside the feeding pipe body 1. Therefore, an electric telescopic rod 7 is arranged at the lower end of the rotating rod 5. A protective hose 8 is arranged outside the electric telescopic rod 7 for protection. At the same time, a scraping ring plate 9 is installed at the output end of the electric telescopic rod 7. The outside of the scraping ring plate 9 is also closely attached to the inner wall of the feeding pipe body 1. That is, when the electric telescopic rod 7 is turned on, the output end of the electric telescopic rod 7 can push the scraping ring plate 9 to move up and down, and can also scrape the inside of the feeding pipe body 1, and the scraping range can be adjusted.

[0034] Embodiment 3: For the existing feeding device of the submerged arc furnace, if the materials are wet when entering the spiral feeding device 11, it will cause sticking phenomena in the spiral feeding device 11, thus resulting in problems such as blockage. Therefore, in this embodiment, through the following technical solutions, as Figure 1 、 Figure 2 and Figure 6As shown, the air-drying mechanism includes an air outlet 15 disposed above the left side of the screw feeding device 11. The screw feeding device 11 is fixedly connected to the right side of the feed pipe body 1. By providing the screw feeding device 11, materials can be conveyed into the interior of the feed pipe body 1. Meanwhile, the air outlet 15 is installed above the left side of the feed pipe body 1. Above the middle of the air outlet 15, an air delivery pipe 18 is fixedly connected. The lower part of the air delivery pipe 18 is connected to a hot air blower 19. That is, when the hot air blower 19 is turned on, hot air can be blown, transmitted through the air delivery pipe 18 into the interior of the connecting frame 17, then into the interior of the air outlet 15, and finally blown into the interior of the screw feeding device 11, so as to air-dry the materials conveyed inside the screw feeding device 11, preventing the materials from sticking inside the screw feeding device 11 and avoiding the occurrence of material conveyance blockage.

[0035] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art. The standard parts used in the present invention can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art. In addition, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here.

[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A material feeding device for a submerged arc furnace that can reduce the cutting times of the feeding pipe, comprising: A feeding pipe body (1), with a top cover (4) arranged above the interior of the feeding pipe body (1); It is characterized in that it further comprises: A mechanism for reducing the cutting times of the feeding pipe is arranged outside the feeding pipe body (1). The mechanism for reducing the cutting times of the feeding pipe includes a sleeve (2), a fixing block (12) and a rivet (13). A sleeve (2) is arranged outside the feeding pipe body (1), and fixing blocks (12) are symmetrically installed before and after on the right side of the sleeve (2), and the fixing block (12) and the screw conveyor (11) are fixedly connected by a rivet (13); An automatic cleaning mechanism is arranged inside the feeding pipe body (1). The automatic cleaning mechanism includes a rotating rod (5), a scraper (6), an electric telescopic rod (7), a protective hose (8) and a scraping ring plate (9). A rotating rod (5) is rotatably installed inside the feeding pipe body (1), and a motor (10) is connected to the top of the rotating rod (5), and an electric telescopic rod (7) is installed at the lower end of the rotating rod (5), and a protective hose (8) is arranged outside the electric telescopic rod (7).

2. The ore thermal electric furnace feeding device capable of reducing the cutting times of the feeding pipe according to claim 1, characterized in that: An asbestos felt caulking (3) is installed outside the sleeve (2).

3. The feeding device for a submerged arc furnace capable of reducing the cutting times of the feeding pipe according to claim 1, wherein: A scraper (6) is installed outside the rotating rod (5), and the scraper (6) is in close contact with the inner wall of the feeding pipe body (1).

4. The ore thermal electric furnace feeding device capable of reducing the cutting times of the feeding pipe according to claim 1, wherein: The output end of the electric telescopic rod (7) is installed with a scraping ring plate (9), and the outside of the scraping ring plate (9) is also in close contact with the inside of the feeding pipe body (1).

5. A material feeding device for a submerged arc furnace capable of reducing the cutting times of a feeding pipe, characterized in that: The right side of the feeding pipe body (1) is fixedly connected with a screw conveyor (11), and a feeding port (14) is opened in the upper right of the screw conveyor (11), and an air supply port (15) is fixedly connected above the left side of the screw conveyor (11).

6. The feeding device for a submerged arc furnace capable of reducing the cutting times of a feeding pipe according to claim 5, characterized in that: A dust-proof net (16) is installed below the interior of the air supply port (15), and a connecting frame (17) is connected above the air supply port (15), and an air supply pipe (18) is installed above the middle of the connecting frame (17), and a hot air blower (19) is fixedly connected below the air supply pipe (18).

7. The feeding device for a submerged arc furnace capable of reducing the cutting times of a feeding pipe according to claim 5, wherein: The middle right side of the screw conveyor (11) is connected with a connecting rod (20), and the right side of the connecting rod (20) is connected with a motor (10).

Images