Carbon powder pre-deoxidation equipment for converter

Abstract

The utility model relates to the technical field of steelmaking processes, and discloses carbon powder pre-deoxidation equipment for a converter, which comprises a steel outlet pipe, a conveying pipe and a temporary storage box, branch pipes are evenly and fixedly installed at the ends, away from the temporary storage box, of the conveying pipes at equal intervals, metal corrugated pipes are fixedly installed at the other ends of the pneumatic conveying assemblies, and spraying pipes are fixedly installed at the other ends of the metal corrugated pipes. And fixed cylinders are evenly and fixedly installed at the end, deviating from the temporary storage box, of the steel outlet pipe at equal intervals, driven gears are rotatably installed on the sides, deviating from the metal corrugated pipe, of the fixed cylinders, installation blocks are fixedly installed on the driven gears, and cleaning blocks are fixedly installed on the installation blocks. According to the utility model, the plurality of driven gears can rotate synchronously, so that the cleaning block in contact with the spraying pipe can rotate synchronously, and the carbon powder carelessly adhered to the outer wall and the inner wall of the spraying pipe can be scraped smoothly by the rotation of the cleaning block, thereby avoiding the blocking movement and ensuring the continuous and stable powder spraying movement.

Description

Technical Field

[0001] The utility model relates to the technical field of steelmaking technology, in particular to carbon powder pre-deoxidation equipment for converters. Background Art

[0002] Carbon powder pre-deoxidation equipment for converter is a key equipment used for deoxidation in the steelmaking process. In the converter steelmaking process, carbon powder pre-deoxidation means that carbon powder is added to the molten steel during the process of pouring molten steel from the converter into the ladle. At this time, the temperature of the molten steel is relatively high, which is conducive to the rapid dissolution of carbon powder and reaction with oxygen to reduce the oxygen content in the molten steel, thereby reducing the consumption of subsequent deoxidizers (such as aluminum), saving costs and improving the quality of steel.

[0003] The existing patent document with announcement number CN220564661U discloses a carbon powder pre-deoxidation device for smelting low-carbon steel, including a box body, a storage tank, a first bracket, a bottom plate and a second bracket. The bottom plate is fixedly installed on one side of the box body, and the first bracket is fixedly installed on the upper end of the bottom plate. The storage tank is rotatably installed between the first brackets, and rollers distributed in a linear array are arranged inside the storage tank. The second bracket is fixedly installed on the upper end of the box body.

[0004] However, the above device has the following problems when in use: in actual use, due to the particularity of the steelmaking environment - high temperature, high humidity and complex operating conditions, carbon powder is very easy to agglomerate due to changes in temperature and humidity, and the nozzle is easily blocked, which greatly affects the continuity of the powder spraying movement. The existing device lacks corresponding treatment measures. Utility Model Content

[0005] The utility model aims to solve the problems existing in the prior art, and proposes a carbon powder pre-deoxidation device for a converter, in which a plurality of driven gears can rotate synchronously, so that a cleaning block in contact with an ejection pipe can rotate synchronously, so that the rotation of the cleaning block can smoothly scrape off the carbon powder accidentally adhered to the outer wall and the inner wall of the ejection pipe, thereby avoiding blockage and ensuring the continuous stability of the powder spraying activity.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A carbon powder pre-deoxidation device for a converter comprises a steel outlet pipe, a conveying pipe and a temporary storage box, wherein a pneumatic conveying component is arranged on the conveying pipe;

[0008] Branch pipes are evenly and evenly fixed on one end of the conveying pipe away from the temporary storage box, and a metal bellows is fixedly installed on the other end of the pneumatic conveying assembly, and a spray pipe is fixedly installed on the other end of the metal bellows;

[0009] A fixed cylinder is evenly and evenly fixedly installed at one end of the steel outlet pipe away from the temporary storage box, a driven gear is rotatably installed on the side of the fixed cylinder away from the metal bellows, a mounting block is fixedly installed on the driven gear, and a cleaning block is fixedly installed on the mounting block;

[0010] The steel outlet pipe is provided with a driving device for rotating the driven gear.

[0011] Preferably, the driving device includes a driving motor, a mounting base is fixedly mounted on the output steel pipe, the driving motor is arranged on the mounting base, an output shaft is fixedly mounted on the output end of the shaft of the driving motor, a driving gear is fixedly mounted at the center of the output shaft, and the driving gear is connected to the driven gear away from the mounting base through a synchronous belt.

[0012] Preferably, the synchronous belt is in meshing relationship with the plurality of driven gears.

[0013] Preferably, the cleaning block is in an inverted N shape and can contact the outer wall and the inner wall of the end of the spray pipe facing the driving gear at the same time.

[0014] Preferably, an internal thread mounting ring is fixedly mounted on the fixed cylinder, an external thread ring is rotatably mounted on the ejection pipe, and the internal thread mounting ring and the external thread ring are threadably matched.

[0015] Preferably, a crushing assembly is provided at the upper end of the temporary storage box.

[0016] Preferably, each branch pipe is provided with a control valve.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] (1) The utility model is provided with a driving motor, an output shaft, a driving gear, a driven gear, a synchronous belt, a mounting block, a cleaning block and a spray pipe. A plurality of driven gears can rotate synchronously, so that the cleaning block in contact with the spray pipe rotates synchronously. Therefore, the rotation of the cleaning block can smoothly scrape off the carbon powder accidentally adhered to the outer wall and the inner wall of the spray pipe, thereby avoiding blockage and ensuring the continuous stability of the powder spraying activity.

[0019] (2) The utility model is provided with an external thread ring, an internal thread mounting ring and a spray pipe. The threads of the internal thread mounting ring and the external thread ring cooperate with each other, so that the spray pipe can be stably maintained in a fixed position. While ensuring that the spraying state is not destroyed, the cleaning block is in contact with the outer wall and the inner wall of the spray pipe at the same time, thereby ensuring the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of a carbon powder pre-deoxidation device for a converter proposed by the utility model;

[0021] Figure 2 This is a schematic diagram of the rotation principle of the driven gear of a carbon powder pre-deoxidation device for a converter proposed by the utility model;

[0022] Figure 3 This is a schematic diagram of the rotation principle of a cleaning block of a carbon powder pre-deoxidation device for a converter proposed by the utility model;

[0023] Figure 4 The utility model is a schematic diagram of the installation principle of the ejection pipe of the carbon powder pre-deoxidation equipment for the converter.

[0024] In the figure: 1. steel outlet pipe; 2. conveying pipe; 3. temporary storage box; 4. crushing assembly; 5. pneumatic conveying assembly; 6. branch pipe; 7. control valve; 8. metal bellows; 9. fixing cylinder; 10. internal thread mounting ring; 11. mounting seat; 12. driving motor; 13. output shaft; 14. driving gear; 15. driven gear; 16. synchronous belt; 17. mounting block; 18. cleaning block; 19. ejection pipe; 20. external thread ring. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] See also Figures 1 to 4 A carbon powder pre-deoxidation device for a converter comprises a steel outlet pipe 1, a conveying pipe 2 and a temporary storage box 3. The conveying pipe 2 is provided with a pneumatic conveying component 5. The steel outlet pipe 1 is used to convey molten steel, and the conveying pipe 2 is used to convey carbon powder that needs to be added to the molten steel. The pneumatic conveying component 5 can provide pneumatic support for the conveying of carbon powder, thereby ensuring the normal conveying of carbon powder.

[0027] Branch pipes 6 are evenly and evenly fixedly installed on one end of the conveying pipe 2 away from the temporary storage box 3, and a metal bellows 8 is fixedly installed on the other end of the pneumatic conveying component 5;

[0028] The other end of the metal bellows 8 is fixedly mounted with a spray pipe 19;

[0029] The carbon powder transported by the conveying pipe 2 is dispersed through multiple branch pipes 6, and then falls into the metal bellows 8, and then is smoothly ejected through the ejection pipe 19. The ejection pipe 19 is located inside the steel outlet pipe 1. The ejection pipe 19 can spray the carbon powder into the flowing molten steel, thereby reducing the oxygen content in the molten steel and realizing pre-deoxidation activity.

[0030] A fixed cylinder 9 is evenly and evenly fixedly installed at one end of the steel pipe 1 away from the temporary storage box 3, and a driven gear 15 is rotatably installed on the side of the fixed cylinder 9 away from the metal bellows 8, and a mounting block 17 is fixedly installed on the driven gear 15, and a cleaning block 18 is fixedly installed on the mounting block 17;

[0031] By rotating the driven gear 15, the rotation of the driven gear 15 can cause the cleaning block 18 to rotate synchronously, and the cleaning block 18 is in direct contact with the spray pipe 19, so the rotation of the cleaning block 18 can smoothly scrape off the carbon powder accidentally adhered to the outer wall and inner wall of the spray pipe 19, thereby avoiding blockage and ensuring the continuous and stable powder spraying activity.

[0032] The steel outlet pipe 1 is provided with a driving device for rotating the driven gears 15 , and the driving device can make the multiple driven gears 15 rotate synchronously.

[0033] The driving device includes a driving motor 12. A mounting seat 11 is fixedly mounted on the steel pipe 1. The driving motor 12 is arranged on the mounting seat 11. An output shaft 13 is fixedly mounted on the output end of the shaft of the driving motor 12.

[0034] A driving gear 14 is fixedly mounted at the center of the output shaft 13 , and the driving gear 14 is connected to a driven gear 15 away from the mounting seat 11 via a synchronous belt 16 .

[0035] When the driving motor 12 is started, the output shaft 13 and the driving gear 14 thereon will rotate, so that the synchronous belt 16 can operate normally.

[0036] The synchronous belt 16 is in meshing relationship with multiple driven gears 15, and the teeth on the driven gears 15 cooperate with the grooves on the synchronous belt 16. Therefore, when the synchronous belt 16 moves, through the meshing action, the multiple driven gears 15 can perform synchronous rotation motion, thereby realizing the cleaning activity of the spray pipe 19.

[0037] The cleaning block 18 is in an inverted N shape and can simultaneously contact the outer wall and inner wall of the ejection tube 19 facing the driving gear 14 , so the rotation of the cleaning block 18 can smoothly scrape off the carbon powder accidentally adhered to the outer wall and inner wall of the ejection tube 19 .

[0038] An internal thread mounting ring 10 is fixedly mounted on the fixed cylinder 9 , and an external thread ring 20 is rotatably mounted on the ejection pipe 19 . The internal thread mounting ring 10 and the external thread ring 20 are threadably matched.

[0039] When installing, the internal threaded mounting ring 10 can stably maintain the spray pipe 19 in a fixed position through the threaded cooperation between the external threaded ring 20. While ensuring that the spraying state is not destroyed, the cleaning block 18 contacts the outer wall and the inner wall of the spray pipe 19 at the same time to ensure the cleaning effect.

[0040] The upper end of the temporary storage box 3 is provided with a crushing assembly 4, which can crush the conveyed carbon powder to ensure that no carbon powder blocks will block the pipeline and cause.

[0041] The branch pipes 6 are all provided with control valves 7, which can control whether the corresponding carbon powder channel is opened or not, so that the amount of carbon powder sprayed can be regulated according to actual needs, which is convenient for daily use.

[0042] The working process of the utility model is as follows: when in use, the spray pipe 19 is first installed. During the installation, the internal threaded mounting ring 10 cooperates with the threads of the external threaded ring 20 to stably maintain the spray pipe 19 in a fixed position. At this time, the cleaning block 18 contacts the outer wall and the inner wall of the spray pipe 19 at the same time to ensure the cleaning effect.

[0043] Afterwards, the steel outlet pipe 1 transports the molten steel, and the carbon powder is transported synchronously. The crushing component 4 can crush the transported carbon powder. The carbon powder transported by the conveying pipe 2 is dispersed through multiple branch pipes 6, and then falls into the metal bellows 8, and then is smoothly ejected through the ejection pipe 19. The ejection pipe 19 is inside the steel outlet pipe 1. The ejection pipe 19 can spray carbon powder into the flowing molten steel, thereby reducing the oxygen content in the molten steel and realizing pre-deoxidation activity.

[0044] When the carbon spraying activity is carried out, the driving motor 12 is started, which will cause the output shaft 13 and the driving gear 14 thereon to rotate, so that the synchronous belt 16 can operate normally, and the teeth on the driven gear 15 cooperate with the grooves on the synchronous belt 16, so when the synchronous belt 16 moves, through the meshing action, multiple driven gears 15 can be made to rotate synchronously, and the cleaning block 18 is in direct contact with the spray pipe 19, so the rotation of the cleaning block 18 can smoothly scrape off the carbon powder accidentally adhered to the outer wall and inner wall of the spray pipe 19, thereby avoiding blockage and ensuring the continuous and stable powder spraying activity.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A carbon powder pre-deoxidation device for a converter, comprising a steel outlet pipe (1), a conveying pipe (2) and a temporary storage box (3), wherein a pneumatic conveying component (5) is arranged on the conveying pipe (2), characterized in that: Branch pipes (6) are evenly and evenly fixedly installed on one end of the conveying pipe (2) away from the temporary storage box (3), and a metal bellows (8) is fixedly installed on the other end of the pneumatic conveying component (5), and a spray pipe (19) is fixedly installed on the other end of the metal bellows (8); A fixed cylinder (9) is evenly and evenly fixedly installed at one end of the steel outlet pipe (1) away from the temporary storage box (3), a driven gear (15) is rotatably installed on the side of the fixed cylinder (9) away from the metal bellows (8), a mounting block (17) is fixedly installed on the driven gear (15), and a cleaning block (18) is fixedly installed on the mounting block (17); The steel outlet pipe (1) is provided with a driving device for rotating the driven gear (15).

2. The carbon powder pre-deoxidation equipment for converter according to claim 1, characterized in that: The driving device comprises a driving motor (12), a mounting seat (11) is fixedly mounted on the steel outlet pipe (1), the driving motor (12) is arranged on the mounting seat (11), an output shaft (13) is fixedly mounted on the output end of the shaft of the driving motor (12), a driving gear (14) is fixedly mounted at the center of the output shaft (13), and the driving gear (14) is connected to a driven gear (15) far away from the mounting seat (11) through a synchronous belt (16).

3. The carbon powder pre-deoxidation equipment for converter according to claim 2, characterized in that: The synchronous belt (16) is in meshing relationship with the plurality of driven gears (15).

4. The carbon powder pre-deoxidation equipment for converter according to claim 1, characterized in that: The cleaning block (18) is in an inverted N-shape and can simultaneously contact the outer wall and the inner wall of the spray pipe (19) at one end facing the driving gear (14).

5. The carbon powder pre-deoxidation equipment for converter according to claim 1, characterized in that: An internal thread mounting ring (10) is fixedly mounted on the fixed cylinder (9), and an external thread ring (20) is rotatably mounted on the ejection pipe (19), wherein the internal thread mounting ring (10) and the external thread ring (20) are threadably matched.

6. The carbon powder pre-deoxidation equipment for converter according to claim 1, characterized in that: A crushing assembly (4) is provided at the upper end of the temporary storage box (3).

7. The carbon powder pre-deoxidation equipment for converter according to claim 1, characterized in that: A control valve (7) is provided on each branch pipe (6).

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