Efficient slag splashing protection blowing device of low-iron-consumption converter

Abstract

The utility model relates to the technical field of converters, in particular to an efficient slag splashing protection blowing device of a low-iron-consumption converter, which comprises a converter body, a rotary joint is arranged at one end of the converter body, a slag regulating agent in a storage tank enters a blowing pipeline through a discharge port and a connecting box in sequence, at the moment, a pneumatic control valve cabinet opens a gas storage tank, and the slag regulating agent is blown into the blowing pipeline. Nitrogen in the gas storage tank enters the blowing pipeline, the slag adjusting agent enters the converter body through the connecting pipe, slag splashing protection and low-cost and high-efficiency slag splashing are automatically conducted, the working efficiency is improved, the slag adjusting agent can be scattered through the stirring rod in the material storage tank, the condition that the slag adjusting agent is caked is avoided, and the service life of the converter is prolonged. The slag-adjusting agent is filtered by the filter screen in the connecting box, part of the non-scattered blocky slag-adjusting agent is blocked, and then the blocky slag-adjusting agent on the filter screen is scattered through rotation of the scraper, so that the utilization rate of the slag-adjusting agent is increased, and the phenomenon that the blocky slag-adjusting agent enters the blowing pipeline to affect the slag splashing quality of the converter body is avoided.

Description

Technical Field

[0001] This utility model relates to the field of converter technology, specifically to a high-efficiency slag splashing and furnace protection injection device for low-iron-consumption converters. Background Technology

[0002] Slag splashing protection technology for converter bodies has been used for many years to protect the converter body and extend its service life. my country began developing a slag splashing protection process for converter bodies adapted to its national conditions in the 1980s. This technology involves spraying high-pressure nitrogen gas through a spray gun to propel slag onto the furnace lining surface, forming a protective slag layer. This prevents molten steel and slag from directly contacting the furnace lining during the next heat, thus slowing down the erosion of the refractory bricks and extending the converter's service life.

[0003] When using existing slag splashing furnace protection injection devices, the raw materials used for slag splashing furnace protection are prone to agglomeration, which leads to uneven slag splashing during injection and results in poor quality and practicality of converter slag splashing. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a high-efficiency slag splashing and furnace protection injection device for low-iron-consumption converters.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency slag splashing and furnace protection injection device for a low-iron-consumption converter, comprising a converter body, a synchronous pipe provided on the side of the converter body, a rotary joint provided on the synchronous pipe, a connecting pipe provided on the rotary joint, a blowing pipe provided at one end of the connecting pipe, a pneumatic control valve cabinet provided at one end of the blowing pipe, an air storage tank provided on one side of the pneumatic control valve cabinet, a material storage tank provided at the top of the blowing pipe, a discharge port provided at the bottom of the material storage tank, a connecting box provided at the bottom of the discharge port, the bottom of the connecting box being connected to the blowing pipe, a stirring rod provided inside the material storage tank, a worm gear and a drive motor provided at the top of the stirring rod, both the worm gear and the drive motor being located at the top of the material storage tank, and a worm provided on the side of the material storage tank, the worm being located on the side of the worm gear. The worm and worm wheel are meshed together. One end of the worm is equipped with a driving wheel, and a belt is mounted on the driving wheel. The bottom end of the stirring rod is equipped with a spiral rod, and the bottom end of the spiral rod is located inside the discharge port. A filter screen is installed at the bottom of the connecting box. A fixed pipe is installed on one side of the connecting box. A transmission box is installed at one end of the fixed pipe. A transmission rod is installed inside the fixed pipe. One end of the transmission rod is equipped with a first bevel gear, which is located inside the transmission box. A rotating rod is installed at the bottom of the transmission box. A scraper is installed at the bottom of the rotating rod, and the scraper is located at the top of the filter screen. A second bevel gear is installed at the top of the rotating rod. The first bevel gear and the second bevel gear are meshed together. The other end of the transmission rod is equipped with a driven wheel, which is located outside the connecting box. One end of the belt is mounted on the driven wheel.

[0008] Furthermore, the present invention is improved in that the connecting box and the discharge port are detachably connected, and a valve is provided on the discharge port.

[0009] Furthermore, the present invention is improved in that the filter screen is made of stainless steel and the filter screen and the connecting box are connected by a snap-fit ​​mechanism.

[0010] Furthermore, an improvement of this utility model is that the inner wall of the storage tank is made of stainless steel.

[0011] Furthermore, an improvement of this utility model is that the drive motor and valve are electrically connected to the pneumatic control valve cabinet.

[0012] Furthermore, an improvement of this utility model is that the drive motor is a servo motor.

[0013] Furthermore, the present invention is improved in that the exterior of the storage tank and the connecting box are provided with a corrosion-resistant layer, which is made of epoxy resin.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a high-efficiency slag splashing and furnace protection injection device for low-iron-consumption converters, which has the following beneficial effects:

[0016] This high-efficiency slag splashing and furnace protection injection device for a low-iron-consumption converter operates as follows: When slag splashing is required, the slag conditioning agent inside the storage tank enters the blowing pipeline sequentially through the discharge port and connecting box. At this time, the pneumatic control valve cabinet opens the gas storage tank, allowing nitrogen gas inside the gas storage tank to enter the blowing pipeline. The slag conditioning agent then enters the converter body through the connecting pipe, automatically performing slag splashing and furnace protection. This low-cost and high-efficiency slag splashing improves work efficiency. Furthermore, the stirring rod inside the storage tank can disperse the slag conditioning agent, preventing it from clumping. Then, the filter screen inside the connecting box filters out any remaining clumps of slag conditioning agent. Finally, the rotating scraper disperses the clumps of slag conditioning agent on the filter screen, improving the utilization rate of the slag conditioning agent and preventing clumped slag conditioning agent from entering the blowing pipeline and affecting the slag splashing quality of the converter body. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This utility model Figure 1 A schematic diagram of the side view structure;

[0019] Figure 3 This utility model Figure 2 Schematic diagram of the internal structure of the middle section;

[0020] Figure 4 This utility model Figure 3 Enlarged internal structural diagram of the connecting box;

[0021] In the diagram: 1. Converter body; 2. Rotary joint; 3. Connecting pipe; 4. Storage tank; 5. Discharge port; 6. Connecting box; 7. Blowing pipe; 8. Pneumatic control valve cabinet; 9. Gas storage tank; 10. Stirring rod; 11. Drive motor; 12. Worm gear; 13. Worm; 14. Driving wheel; 15. Belt; 16. Transmission rod; 17. Driven wheel; 18. Helical rod; 19. Fixed pipe; 20. Transmission box; 21. Filter screen; 22. First bevel gear; 23. Rotating rod; 24. Second bevel gear; 25. Scraper. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 A high-efficiency slag splashing and furnace protection injection device for a low-iron-consumption converter includes a converter body 1. A synchronous pipe is installed on the side of the converter body 1. A rotary joint 2 is installed on the synchronous pipe. A connecting pipe 3 is installed on the rotary joint 2. A blowing pipe 7 is installed at one end of the connecting pipe 3. A pneumatic control valve cabinet 8 is installed at one end of the blowing pipe 7. An air storage tank 9 is installed on one side of the pneumatic control valve cabinet 8. A material storage tank 4 is installed at the top of the blowing pipe 7. A discharge port 5 is installed at the bottom of the material storage tank 4. A connecting box 6 is provided, the bottom end of which is connected to a blow pipe 7. A stirring rod 10 is installed inside the storage tank 4. A worm gear 12 and a drive motor 11 are installed at the top of the stirring rod 10, both located at the top of the storage tank 4. A worm 13 is installed on the side of the storage tank 4, located next to the worm gear 12. The worm 13 and the worm gear 12 are meshed. A drive wheel 14 is installed at one end of the worm 13, and a belt 15 is installed on the drive wheel 14. The stirring rod... A spiral rod 18 is provided at the bottom of the 10, with the bottom end of the spiral rod 18 located inside the discharge port 5. A filter screen 21 is provided at the bottom of the connecting box 6. A fixed pipe 19 is provided on one side of the connecting box 6. A transmission box 20 is provided at one end of the fixed pipe 19. A transmission rod 16 is provided inside the fixed pipe 19. A first bevel gear 22 is provided at one end of the transmission rod 16, and the first bevel gear 22 is located inside the transmission box 20. A rotating rod 23 is provided at the bottom of the transmission box 20. A [missing information - likely a device or component] is provided at the bottom of the rotating rod 23. The scraper 25 is located on top of the filter screen 21. The top of the rotating rod 23 is provided with a second bevel gear 24. The first bevel gear 22 and the second bevel gear 24 are meshed together. The other end of the transmission rod 16 is provided with a driven wheel 17, which is located outside the connecting box 6. One end of the belt 15 is provided on the driven wheel 17. The connecting box 6 and the discharge port 5 are detachably connected. A valve is provided on the discharge port 5. The drive motor 11 and the valve are electrically connected to the pneumatic control valve cabinet 8.

[0024] In actual use, a fixed amount of slag conditioner is loaded into the storage tank 4. When splashing slag onto the converter body 1, the valve is opened, allowing the slag conditioner in the storage tank 4 to enter the processing box through the discharge port 5. During discharge, the drive motor 11 is turned on, which drives the stirring rod 10 to rotate. The stirring rod 10 simultaneously drives the screw rod 18 and the worm gear 12 to rotate. The rotation of the stirring rod 10 disperses the slag conditioner, preventing clumping. The screw rod 18 ensures that the slag conditioner is evenly introduced into the connecting box 6 through the discharge port 5, preventing blockage. The slag conditioner falls directly onto the filter screen 21 through the discharge port 5, filtering out any undispersed slag conditioner. The filtered slag conditioner then... The slag falls directly into the blow pipe 7. At this time, the rotation of the worm gear 12 will drive the worm 13, and the rotation of the worm 13 will drive the drive wheel 14. The drive wheel 14 will drive the driven wheel 17 through the belt 15. The driven wheel 17 will drive the transmission rod 16. The transmission rod 16 will rotate in the fixed pipe 19. The transmission rod 16 will drive the second bevel gear 24 through the first bevel gear 22. The second bevel gear 24 will drive the rotating rod 23. The rotating rod 23 will drive the scraper 25 to rotate, so that the scraper 25 will break up the slag-conditioning agent clumped on the filter screen 21, thereby improving the utilization rate of the slag-conditioning agent. Then, the pneumatic control valve cabinet 8 will open the gas storage tank 9, so that the nitrogen gas inside the gas storage tank 9 will enter the blow pipe 7. The slag-conditioning agent will enter the converter body 1 through the connecting pipe 3, the rotary joint 2 and the synchronous pipe, automatically splashing slag to protect the furnace. This low-cost and high-efficiency slag splashing improves the working efficiency.

[0025] In this embodiment, the filter screen 21 is made of stainless steel, and the filter screen 21 is snap-fitted to the connecting box 6, which facilitates the disassembly, cleaning or replacement of the filter screen 21.

[0026] In this embodiment, the inner wall of the storage tank 4 is made of stainless steel to prevent the slag conditioner from remaining on the inner wall of the storage tank 4.

[0027] In this embodiment, the storage tank 4 and the connecting box 6 are both provided with a corrosion-resistant layer on the outside. The corrosion-resistant layer is made of epoxy resin, which improves the durability of the device itself.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency slag splashing and furnace protection injection device for a low-iron-consumption converter, characterized in that: The converter body (1) includes a synchronous pipe on its side, a rotary joint (2) on the synchronous pipe, a connecting pipe (3) on the rotary joint (2), a blowing pipe (7) on one end of the connecting pipe (3), a pneumatic control valve cabinet (8) on one end of the blowing pipe (7), a gas storage tank (9) on one side of the pneumatic control valve cabinet (8), a material storage tank (4) on the top of the blowing pipe (7), a discharge port (5) at the bottom of the material storage tank (4), and a connecting pipe (5) at the bottom of the discharge port (5). The bottom of the connecting box (6) is connected to the blowing pipe (7). The storage tank (4) is equipped with a stirring rod (10). The top of the stirring rod (10) is equipped with a worm gear (12) and a drive motor (11). The worm gear (12) and the drive motor (11) are both located on the top of the storage tank (4). The storage tank (4) is equipped with a worm (13) on its side. The worm (13) is located on the side of the worm gear (12). The worm (13) and the worm gear (12) are meshed. One end of the worm (13) is equipped with a drive wheel (14). A belt (15) is provided on the drive wheel (14), a spiral rod (18) is provided at the bottom end of the stirring rod (10), the bottom end of the spiral rod (18) is located inside the discharge port (5), a filter screen (21) is provided at the bottom inside the connecting box (6), a fixed pipe (19) is provided on one side inside the connecting box (6), a transmission box (20) is provided at one end of the fixed pipe (19), a transmission rod (16) is provided inside the fixed pipe (19), and a first bevel gear (22) is provided at one end of the transmission rod (16). Located inside the transmission box (20), the bottom of the transmission box (20) is provided with a rotating rod (23), the bottom of the rotating rod (23) is provided with a scraper (25), the scraper (25) is located on the top of the filter screen (21), the top of the rotating rod (23) is provided with a second bevel gear (24), the first bevel gear (22) and the second bevel gear (24) are meshed, the other end of the transmission rod (16) is provided with a driven wheel (17), the driven wheel (17) is located outside the connecting box (6), and one end of the belt (15) is provided on the driven wheel (17).

2. The high-efficiency slag splashing and furnace protection injection device for a low-iron-consumption converter according to claim 1, characterized in that: The connecting box (6) and the discharge port (5) are detachably connected, and a valve is provided on the discharge port (5).

3. The high-efficiency slag splashing and furnace protection injection device for a low-iron-consumption converter according to claim 2, characterized in that: The filter screen (21) is made of stainless steel, and the filter screen (21) and the connecting box (6) are connected by a snap-fit.

4. The high-efficiency slag splashing and furnace protection injection device for a low-iron-consumption converter according to claim 3, characterized in that: The inner wall of the storage tank (4) is made of stainless steel.

5. The high-efficiency slag splashing and furnace protection injection device for a low-iron-consumption converter according to claim 4, characterized in that: The drive motor (11) and valves are electrically connected to the pneumatic control valve cabinet (8).

6. The high-efficiency slag splashing and furnace protection injection device for a low-iron-consumption converter according to claim 5, characterized in that: The drive motor (11) is a servo motor.

7. The high-efficiency slag splashing and furnace protection injection device for a low-iron-consumption converter according to claim 6, characterized in that: The storage tank (4) and the connecting box (6) are both provided with a corrosion-resistant layer, which is made of epoxy resin.

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