Disassembling and assembling equipment for replacing copper sleeve of large arm of blast furnace

Abstract

The utility model relates to the technical field of blast furnace metallurgy, in particular to dismounting and mounting equipment for replacing a blast furnace big arm copper bush, which comprises two clamping abutting plates, through holes are formed in the two clamping abutting plates, a jack assembly is detachably mounted on one side wall of a first connecting plate, and a push disc is connected to the end of the jack assembly. Telescopic limiting assemblies are arranged at the positions, matched with the corners of the through holes, of the clamping abutting plates, rotating discs are hinged to the bottom ends of the limiting assemblies, the bottom ends of the multiple rotating discs jointly rotate to abut against a limiting plate, and the limiting plate abuts against the end of the blast furnace big arm. The pushing disc is driven by the jack assembly to move so as to push the copper bush to be replaced out of the blast furnace big arm, a big hammer does not need to be used for knocking in the process, the blast furnace big arm can be conveniently fixed through the designed clamping abutting plate and the through hole, the dismounting process of the copper bush is simplified on the premise that personnel are prevented from being mechanically injured, and the working efficiency is improved. Therefore, the effects of saving time and labor are achieved, and the labor intensity and economic consumption are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of blast furnace metallurgy, in particular to a disassembly and assembly device used for replacing a copper sleeve of a blast furnace boom. Background Art

[0002] Metallurgical blast furnace equipment is the core equipment in the metal smelting process. During production, iron ore, coke, and slag-making flux are loaded from the top of the furnace, and preheated air is blown in from the tuyere located at the bottom of the blast furnace along the furnace periphery. Under the action of high temperature, the carbon in the coke burns with the oxygen in the blown air to generate carbon monoxide and hydrogen. The oxygen in the iron ore is removed during the rising process in the furnace, thereby reducing iron. The smelted molten iron is released from the iron mouth, and the unreduced impurities in the iron ore and limestone are combined with the slag-making flux to form slag, which is discharged from the slag mouth. The generated coal gas is discharged from the top of the furnace and, after dust removal, is used as fuel for hot blast stoves, heating furnaces, coke ovens, boilers, etc. The blast furnace boom is a necessary component for fixing the blast furnace and connecting it with other equipment. In order to facilitate connection, a copper sleeve is generally provided in the blast furnace boom, which needs to be disassembled and replaced in time during long-term use.

[0003] Due to the structural characteristics of the blast furnace boom itself, the traditional triangular puller cannot be fixed on the boom for use, and the inner sleeve of the boom is made of copper, which makes it impossible to perform gas cutting on site. Usually, an electric welding rod is used to punch a hole in the blast furnace copper sleeve, and then a large hammer is used to knock it out, and then it is replaced. However, due to the characteristics of electric welding, the boom is easily damaged in the process of punching the copper sleeve with a large hammer. At the same time, due to the small maintenance area, it is easy for personnel to suffer mechanical injuries when using a large hammer to hit. In addition, because the traditional triangular puller cannot be fixed on the blast furnace boom for use, each time the blast furnace boom is replaced, it not only increases time and effort and increases labor intensity, but also increases certain economic consumption.

[0004] Therefore, it is necessary to invent a disassembly and assembly device for replacing the copper sleeve of the blast furnace boom to solve the above problems. Utility Model Content

[0005] In order to solve the shortcomings of the prior art, the purpose of the utility model is to provide a disassembly and assembly equipment for replacing the copper sleeve of the blast furnace boom, which solves the problem that due to the characteristics of electric welding in the prior art, the boom is easily damaged in the process of punching the copper sleeve with a large hammer. At the same time, due to the small maintenance area, it is easy for personnel to suffer mechanical injuries when using a large hammer to hit. In addition, because the traditional triangular puller cannot be fixed on the blast furnace boom for use, each time the blast furnace boom is replaced, it not only increases time and effort and increases labor intensity, but also increases certain economic consumption.

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

[0007] A disassembly and assembly device for replacing the copper sleeve of a blast furnace boom, comprising two clamping abutments abutted by a first connecting plate, wherein a through hole for the blast furnace boom to detachably pass through is provided at the same position of the two clamping abutments, a jack assembly is detachably mounted on one side wall of the first connecting plate, a push plate matched to the size of the copper sleeve of the blast furnace boom is connected to the end of the jack assembly, and retractable limit assemblies are provided at the corner positions of the matching through holes of the clamping abutments located below the first connecting plate, a turntable is hinged at the bottom end of the limit assembly, and the bottom ends of the plurality of turntables are rotatably abutted against the limit plate together, and the rotational abutment position is located at the corner of the limit plate, and the limit plate abuts against the end of the blast furnace boom.

[0008] As a preferred solution of the utility model, the limiting assembly includes a plurality of internally hollow connecting tubes arranged at the corner positions of the adapter through holes of the clamping plate, a sliding column slidably passed through the connecting tube and lockable at any penetration length, and a connecting block detachably connected to the bottom end of the sliding column, and the top end of the turntable is connected to a connecting socket that can be hinged to the connecting block.

[0009] As a preferred solution of the utility model, threads are provided on some sections of the outer peripheral side wall of the connecting tube, and side guide grooves are provided at symmetrical positions of the thin wall of the connecting tube, side clamps that can slide along the side guide grooves are connected to symmetrical positions of the peripheral side walls of the sliding column, and the side clamps extend to the outside of the connecting tube, and a plurality of nuts that can lock the side clamps in the side guide grooves are threaded through the threads of the section of the connecting tube that is threaded.

[0010] As a preferred solution of the utility model, the bottom end of the turntable is connected to a rotating column that can rotate through the limiting plate, the bottom end of the rotating column is connected to an anti-slip ring, and the top surfaces of multiple anti-slip rings are all in contact with the bottom surface of the limiting plate.

[0011] As a preferred solution of the utility model, a second connecting plate is abutted between symmetrical positions of a plurality of the clamping abutting plates centered on the through hole.

[0012] As a preferred solution of the utility model, a mounting plate is connected to the end of the jack assembly, and the other side wall of the mounting plate and the one side wall of the first connecting plate are detachably mounted.

[0013] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0014] The utility model designs a puller tool suitable for replacing the copper sleeve of the blast furnace boom according to the structural characteristics of the blast furnace boom. In the actual process of replacing the copper sleeve, the blast furnace boom is passed through the through holes in the two clamping plates so that the boom portion where the copper sleeve needs to be replaced is located between the two clamping plates, and the telescopic length of the limit assembly and the rotation angle of the turntable and the limit plate can be adjusted to change the distance between the limit plate and the clamping plate and the inclination direction and angle between the limit plate and the clamping plate, so as to ensure that the limit plate is abutted against the end of the blast furnace boom. The length of the blast furnace boom that is exposed through the clamping butt plate is adaptively adjusted to ensure that the boom portion that needs to replace the copper sleeve is located between the two clamping butt plates, and then the push plate is driven by the jack assembly to move the copper sleeve to be replaced out of the blast furnace boom to complete the disassembly and replacement of the copper sleeve. There is no need to use a large hammer to knock during the process, and the blast furnace boom can be conveniently fixed through the specially designed clamping butt plate and through hole. Under the premise of avoiding mechanical injuries to personnel, the disassembly process of the copper sleeve is simplified, thereby achieving the effect of saving time and effort, and thereby reducing labor intensity and economic consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the plan view structure of the utility model;

[0017] Figure 3 For this utility model Figure 1 A schematic diagram of the partially enlarged structure at center A;

[0018] Figure 4 For this utility model Figure 2 Schematic diagram of the cross-sectional structure at BB in the middle.

[0019] Description of reference numerals:

[0020] 1. First connecting plate; 2. Second connecting plate; 3. Clamping plate; 4. Through hole; 5. Anti-slip ring; 6. Jack assembly; 7. Push plate; 8. Limit plate; 9. Connecting tube; 10. Side guide groove; 11. Sliding column; 12. Side clamping block; 13. Nut; 14. Connecting block; 15. Connecting base; 16. Turntable; 17. Turntable; 18. Mounting plate. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0022] The utility model provides Figure 1-Figure 4The disassembly and assembly equipment shown in the figure is used for replacing the copper sleeve of the blast furnace boom, comprising two clamping plates 3 abutted by a first connecting plate 1, and the two clamping plates 3 are provided with a through hole 4 for the blast furnace boom to be detachably penetrated at the same position, and a jack assembly 6 is detachably installed on one side wall of the first connecting plate 1, and a push plate 7 adapted to the size of the copper sleeve of the blast furnace boom is connected to the end of the jack assembly 6, and a retractable limit assembly is provided at the corner position of the through hole 4 of the clamping plate 3 below the first connecting plate 1, and the bottom end of the limit assembly A turntable 16 is hinged, and the bottom ends of multiple turntables 16 rotate together to abut against the limit plate 8, and the rotation abutment position is located at the corner of the limit plate 8, and the limit plate 8 abuts against the end of the blast furnace boom. By changing the telescopic length of the limit assembly and the rotation angle of the turntable 16 and the limit plate 8, the distance between any corner position of the limit plate 8 and the clamping plate 3 can be changed, thereby changing the overall distance between the limit plate 8 and the clamping plate 3 as well as the inclination angle and direction, thereby adapting to the different end shapes of the blast furnace boom to achieve abutment limiting.

[0023] The limiting assembly includes a plurality of internally hollow connecting tubes 9 arranged at the corner positions of the adapting through holes 4 of the clamping plate 3, a sliding column 11 slidably penetrated in the connecting tube 9 and lockable at any penetration length, and a connecting block 14 detachably connected to the bottom end of the sliding column 11. A connecting seat 15 which can be hinged to the connecting block 14 is connected to the top of the rotating disk 16. The sliding column 11 slides along the inner wall of the connecting tube 9 to change the distance between the limiting plate 8 and the clamping plate 3. The connecting block 14 is hinged to the connecting seat 15 to change the hinge angle between the rotating disk 16 and the sliding column 11. The rotation between the rotating disk 16 and the limiting plate 8 can change the hinge direction, thereby changing the overall distance between the limiting plate 8 and the clamping plate 3 as well as the tilt angle and direction.

[0024] Some sections of the outer side wall of the connecting tube 9 are provided with threads, and side guide grooves 10 are provided at symmetrical positions of the thin wall of the connecting tube 9. Side blocks 12 that can slide along the side guide grooves 10 are connected to symmetrical positions of the side walls of the sliding column 11, and the side blocks 12 extend to the outside of the connecting tube 9. Some sections of the connecting tube 9 with threads are threaded with multiple nuts 13 that can lock the position of the side blocks 12 in the side guide grooves 10. In the process of the sliding column 11 sliding along the inner wall of the connecting tube 9, the side blocks 12 slide along the side guide grooves 10 synchronously, and the position of the side blocks 12 in the side guide grooves 10 can be locked by rotating the nuts 13, thereby locking the length of the sliding penetration of the sliding column 11, and then locking the length of the limit assembly, thereby locking the distance between the limit plate 8 and the clamping plate 3.

[0025] The bottom end of the turntable 16 is connected to a turntable post 17 which can rotate and penetrate the limit plate 8. The bottom end of the turntable post 17 is connected to an anti-slip ring 5. The top surfaces of multiple anti-slip rings 5 ​​are all in contact with the bottom surface of the limit plate 8. The turntable 16 and the limit plate 8 are rotated in the limit plate 8 to realize the rotation between the turntable 16 and the limit plate 8. The anti-slip ring 5 can prevent the limit plate 8 from falling off from the turntable post 17.

[0026] The second connecting plates 2 are abutted between the symmetrical positions of the plurality of clamping plates 3 with the through hole 4 as the center. The second connecting plates 2 are used in conjunction with the first connecting plates 1 to enhance the connection strength between the two clamping plates 3 .

[0027] A mounting plate 18 is connected to the end of the jack assembly 6, and the other side wall of the mounting plate 18 can be detachably mounted to the side wall of the first connecting plate 1. The mounting plate 18 can increase the connection area between the jack assembly 6 and the first connecting plate 1, thereby increasing the installation strength of the jack assembly 6 and the first connecting plate 1, and at the same time facilitates the disassembly and assembly of the jack assembly 6 as a whole from between the two clamping plates 3.

[0028] The utility model designs a puller tool suitable for replacing the copper sleeve of the blast furnace boom according to the structural characteristics of the blast furnace boom. In the actual process of replacing the copper sleeve, the blast furnace boom is passed through the through hole 4 in the two clamping plates 3 so that the boom portion where the copper sleeve needs to be replaced is located between the two clamping plates 3, and the telescopic length of the limit assembly and the rotation angle of the turntable 16 and the limit plate 8 can be adjusted to change the distance between the limit plate 8 and the clamping plate 3 and the inclination direction and angle between the limit plate 8 and the clamping plate 3, so as to ensure that the limit plate 8 is abutted against the end of the blast furnace boom. Under the premise of, the length of the blast furnace boom through which the clamping butt plate 3 is exposed is adaptively adjusted to ensure that the boom portion that needs to replace the copper sleeve is located between the two clamping butt plates 3, and then the jack assembly 6 drives the push plate 7 to move to push the copper sleeve to be replaced out of the blast furnace boom, to complete the disassembly and replacement of the copper sleeve. During the process, there is no need to use a large hammer to knock, and the blast furnace boom can be conveniently fixed through the specially designed clamping butt plate 3 and through hole 4. Under the premise of avoiding mechanical injuries to personnel, the disassembly process of the copper sleeve is simplified, thereby achieving the effect of saving time and effort, and thus reducing labor intensity and economic consumption.

[0029] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A disassembly and assembly device for replacing the copper sleeve of the blast furnace boom. Features: The invention comprises two clamping plates (3) abutted by a first connecting plate (1), the two clamping plates (3) are provided with a through hole (4) for a blast furnace boom to detachably pass through at the same position, a jack assembly (6) is detachably mounted on one side wall of the first connecting plate (1), the end of the jack assembly (6) is connected with a push plate (7) adapted to the size of a copper sleeve of the blast furnace boom, and a retractable limit assembly is provided at the corner position of the through hole (4) of the clamping plate (3) below the first connecting plate (1), a rotating disk (16) is hinged at the bottom end of the limit assembly, and the bottom ends of a plurality of the rotating disks (16) are rotatably abutted against a limit plate (8), and the rotation abutment position is located at the corner of the limit plate (8), and the limit plate (8) abuts against the end of the blast furnace boom.

2. A disassembly and assembly device for replacing the copper sleeve of a blast furnace boom according to claim 1, Features: The limit assembly comprises a plurality of internally hollow connection tubes (9) arranged at the corners of the adapter through hole (4) of the clamping plate (3), a sliding column (11) slidably inserted into the connection tube (9) and lockable at any insertion length, and a connection block (14) detachably connected to the bottom end of the sliding column (11), and a connection seat (15) hingedly connected to the connection block (14) is connected to the top end of the rotating disk (16).

3. The disassembly and assembly equipment for replacing the copper sleeve of the blast furnace boom according to claim 2, Features: Partial sections of the outer peripheral side wall of the connecting tube (9) are provided with threads, and side guide grooves (10) are provided at symmetrical positions of the thin wall of the connecting tube (9). Side clamping blocks (12) that can slide along the side guide grooves (10) are connected at symmetrical positions of the peripheral side wall of the sliding column (11), and the side clamping blocks (12) extend to the outside of the connecting tube (9). Partial sections of the connecting tube (9) provided with threads are provided with a plurality of nuts (13) that can lock the side clamping blocks (12) in the side guide grooves (10).

4. The disassembly and assembly equipment for replacing the copper sleeve of the blast furnace boom according to claim 1, Features: The bottom end of the rotating disk (16) is connected to a rotating column (17) which is rotatable and penetrates the limiting plate (8), and the bottom end of the rotating column (17) is connected to an anti-slip ring (5), and the top surfaces of the plurality of anti-slip rings (5) are in contact with the bottom surface of the limiting plate (8).

5. The disassembly and assembly equipment for replacing the copper sleeve of the blast furnace boom according to claim 1, Features: The second connecting plates (2) are abutted between the symmetrical positions of the plurality of clamping abutment plates (3) centered on the through hole (4).

6. The disassembly and assembly equipment for replacing the copper sleeve of the blast furnace boom according to claim 1, Features: The end of the jack assembly (6) is connected to a mounting plate (18), and the other side wall of the mounting plate (18) is detachably mounted to the one side wall of the first connecting plate (1).

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