Automatic steel pipe hot galvanizing equipment and galvanizing process

Abstract

The invention relates to the technical field of steel pipe hot galvanizing, in particular to steel pipe hot galvanizing automation equipment and a galvanizing technology.The steel pipe hot galvanizing automation equipment comprises a zinc liquid pool, a second horizontal moving part is fixedly arranged on one side of the zinc liquid pool, placing tables are arranged on one side of the second horizontal moving part at intervals, and the upper ends of the placing tables are in threaded connection with blocking strips through bolts; a moving assembly is arranged above the molten zinc pool, a stirring assembly is arranged on the outer surface of the moving assembly, a deslagging assembly is arranged at the upper end of the molten zinc pool, first electric telescopic rods are detachably connected to the two sides of the molten zinc pool through supports, push plates are fixedly arranged at one ends of the first electric telescopic rods, and an air blowing part is arranged on one side of the molten zinc pool in a penetrating mode. Through the arrangement of the moving assembly and the slag removal assembly, automatic hot galvanizing of the special-shaped steel pipe is achieved, automatic removal of zinc slag on the surface of zinc liquid can be achieved, through the arrangement of the moving assembly, the stirring assembly and the first electric telescopic rod, residues of the zinc liquid can be reduced, and the possibility of zinc tumor occurrence is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of hot-dip galvanizing of steel pipes, and in particular to automated equipment for hot-dip galvanizing of steel pipes and a galvanizing process. Background Art

[0002] Hot-dip galvanizing of steel pipes is a process in which the steel pipes that have undergone degreasing, pickling and flux pretreatment are immersed in molten zinc liquid at 445-465°C. A dense coating is formed on the surface through the iron-zinc alloy reaction, and finally an anti-corrosion protective layer is obtained through cooling and passivation. The coating has a dual anti-corrosion mechanism of sacrificial anode protection and physical barrier.

[0003] For example, the Chinese patent publication number CN118563235B discloses a hot-dip galvanizing device for steel pipes, including a galvanizing pool, a slide rail and a galvanized steel pipe, the two slide rails are fixedly installed on the ground, and the surfaces of the two slide rails are slidably connected with a first movable pillar and a second movable pillar respectively, the top of the first movable pillar is rotatably connected with a first crossbeam, the upper surface of the first crossbeam is fixedly installed with a first bracket, the two longitudinal arm ends of the first bracket are slidably provided with a second crossbeam, a second motor is fixedly installed on the first bracket, the output shaft of the second motor is fixedly connected with a longitudinal drive screw, the longitudinal drive screw is threadedly inserted with the middle part of the second crossbeam, the lower surfaces of the two ends of the second crossbeam are fixedly connected with iron chains, the lower ends of the iron chains are fixedly connected with a lifting rod, and the lifting rod is rotatably connected with a rolling support rod.

[0004] The above-mentioned device achieves the purpose of removing the zinc liquid on the surface of the steel pipe by tilting and lifting the steel pipe. However, when used on special-shaped steel pipes with inwardly concave outer surfaces, the sliding path of the special-shaped steel pipes at the corners is limited, and they can only slide along the length direction. They cannot slide quickly to the convergence line of the special-shaped steel pipes to drip. The zinc liquid retained on the special-shaped steel pipes is easy to solidify into zinc nodules, and the zinc slag on the surface of the zinc liquid contacts the steel pipes, which will cause serious quality defects. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems in the prior art that the zinc liquid retained on the special-shaped steel pipe is easy to solidify into zinc nodules, and the zinc slag on the surface of the zinc liquid contacts the steel pipe, which may cause serious quality defects. The present invention proposes automatic hot-dip galvanizing equipment and galvanizing process for steel pipes.

[0006] In order to achieve the above-mentioned object, the present invention adopts the following technical scheme: steel pipe hot-dip galvanizing automation equipment, including a zinc liquid pool, a second horizontal moving part is fixedly provided on one side of the zinc liquid pool, a placing table is spaced apart on one side of the second horizontal moving part, and a blocking bar is connected to the upper end of the placing table by a bolt thread, and the placing table is tilted, a moving component is provided above the zinc liquid pool, a toggle component is provided on the outer surface of the moving component, a slag removal component is provided at the upper end of the zinc liquid pool, and two groups of the moving component and the slag removal component are symmetrically provided, both sides of the zinc liquid pool are detachably connected to a first electric telescopic rod through a bracket, a push plate is fixedly provided at one end of the first electric telescopic rod, an air blowing portion is provided through one side of the zinc liquid pool, and the air blowing portion is connected to an external nitrogen heating device;

[0007] The slag removal assembly includes a protective shell arranged at the upper end of the second horizontal moving part, a mounting block is fixedly arranged on one side of the protective shell, a motor is fixedly arranged inside the protective shell, a pushing component is provided at the output end of the motor, a scraping component is provided at the upper end of the mounting block, the pushing component includes a rotating plate fixedly connected to the output end of the motor and a connecting rod rotatably connected to one side of the rotating plate, a first connecting member is provided at the lower end of the connecting rod, a mounting rod is provided at the lower end of the first connecting member, a scraper is fixedly connected to the lower end of the mounting rod, an electromagnet is fixedly connected to one end of the connecting rod, and the electromagnet is in contact with the inner wall of the rotating plate.

[0008] Preferably, the first connecting member includes a first connecting shell fixedly connected to one end of the connecting rod, the lower end of the first connecting shell is rotatably connected to the second connecting shell, and the second connecting shell is fixedly connected to the upper end of the mounting rod, the second connecting shell can only rotate toward the side close to the scraping component, and a torsion spring is fixedly connected between the first connecting shell and the second connecting shell.

[0009] Preferably, the scraping component includes a fourth electric telescopic rod fixedly connected to the upper end of the pushing component, the upper end of the fourth electric telescopic rod is fixedly connected to a connecting plate, the lower surface of the connecting plate is provided with a second connecting member, the second connecting member and the first connecting member are components made of the same structure, the lower end of the second connecting member is provided with a connecting column, the lower end of the connecting column is fixedly connected to an arc-shaped push plate, and the curvature of the inner side of the arc-shaped push plate matches the moving trajectory of the scraper.

[0010] Preferably, a sliding arc bar is slidably engaged with one end of the arc-shaped push plate, and a pressure spring is fixedly connected between the sliding arc bar and the inner wall of the arc-shaped push plate.

[0011] Preferably, the moving component includes a first horizontal moving part arranged on an external bridge crane, two groups of the first horizontal moving parts are fixedly connected, a clamping component is provided at the lower end of the first horizontal moving part, a T-shaped block is provided at the lower end of the clamping component, a mounting bar is fixedly connected to the lower end of the T-shaped block, a plurality of embedded components are provided on one side of the mounting bar, and the mounting bar and the embedded components are both arranged at an angle.

[0012] Preferably, the clamping component includes a driving part arranged at the lower end of the first horizontal moving part, two groups of second electric telescopic rods are arranged at the lower end of the driving part, and the lower ends of the second electric telescopic rods are fixedly connected with L-shaped clamps, and the T-shaped block is clamped and fixed by the two groups of L-shaped clamps.

[0013] Preferably, the T-shaped block includes a rotating disk rotatably connected to one side of the mounting bar, a transmission block is fixedly connected to the outer surface of the rotating disk, and multiple groups of transmission blocks are arranged in a ring-shaped interval, and an embedded rod is fixedly connected to one end of the rotating disk, and multiple groups of embedded rods are arranged in a conical interval.

[0014] Preferably, the toggle assembly includes a third electric telescopic rod fixedly connected to the outer surface of a group of second electric telescopic rods, the lower end of the third electric telescopic rod is fixedly connected to a fixed bar, the lower end of the fixed bar is slidably connected to a sliding bar, the lower end of the sliding bar is fixedly connected to a toggle block, and multiple groups of toggle blocks are arranged at intervals, the fixed bar, the sliding bar and the toggle block are all arranged obliquely, and the toggle block and the transmission block are arranged on the same vertical plane.

[0015] Preferably, a notch is provided on one side of the zinc liquid pool, an inclined plate is fixedly connected to the inner wall of one side of the zinc liquid pool, and the upper end of the inclined plate is flush with the notch, and support plates are fixedly connected to the inner walls on both sides of the inclined plate, and multiple groups of embedded holes are provided on the support plates, and the upper ends of the two symmetrically arranged groups of embedded holes are movably engaged with limiting blocks.

[0016] The galvanizing process of the steel pipe hot-dip galvanizing automation equipment includes the above-mentioned steel pipe hot-dip galvanizing automation equipment, and further includes the following steps:

[0017] S1: Degreasing, pickling and flux plating pretreatment are performed on the special-shaped steel pipe, and then the pre-treated special-shaped steel pipe is placed on the top of the display table to wait for processing;

[0018] S2: Move the special-shaped steel pipe to the top of the zinc liquid pool through the moving component, and then immerse the special-shaped steel pipe in the zinc liquid for hot-dip galvanizing through the moving component;

[0019] S3: During the soaking process, the zinc slag on the surface of the zinc liquid is cleaned by the slag removal component;

[0020] S4: The special-shaped steel pipe is lifted up by the moving assembly. During this process, the special-shaped steel pipe is rotated forward and backward by toggling the assembly and the first electric telescopic rod. The moving assembly causes the special-shaped steel pipe to vibrate slightly, thereby quickly removing the residual zinc liquid on the surface of the special-shaped steel pipe;

[0021] S5: The special-shaped steel pipe is transported to the cooling equipment through the mobile component for cooling, thus completing the entire hot-dip galvanizing process.

[0022] Compared with the existing technology, the advantages of the present invention are:

[0023] 1. Through the setting of the moving components and the slag removal components, the automatic hot-dip galvanizing of special-shaped steel pipes is realized, and the automatic removal of zinc slag on the surface of the zinc liquid can be realized, which can effectively reduce the possibility of zinc slag contacting the special-shaped steel pipe, thereby improving the quality of hot-dip galvanizing of special-shaped steel pipes. It does not require manual labor and is easy to use. At the same time, the pushing of the scraper and the arc-shaped push plate not only reduces the residual zinc slag, but also prevents the zinc slag from excessively gathering on the arc-shaped push plate, thereby improving the zinc slag removal effect;

[0024] 2. By setting the moving component, the toggle component and the first electric telescopic rod, the special-shaped steel pipe can be rotated to remove the zinc liquid, so that the zinc liquid in the recessed position reaches the dripping position faster, thereby reducing the residual zinc liquid. Subsequently, the special-shaped steel pipe is slightly vibrated by the extension and contraction of the second electric telescopic rod, which can further promote the falling of the zinc liquid on the special-shaped steel pipe, further reduce the residual zinc liquid, reduce the possibility of zinc nodules, and improve the quality of hot-dip galvanizing of the special-shaped steel pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of the steel pipe hot-dip galvanizing automation equipment proposed by the present invention;

[0026] Figure 2 This is a schematic diagram of the zinc liquid pool and slag removal component structure of the steel pipe hot-dip galvanizing automation equipment proposed by the present invention;

[0027] Figure 3 This is a schematic diagram of the structure of the slag removal component of the automatic equipment for hot-dip galvanizing of steel pipes proposed in the present invention;

[0028] Figure 4 For the present invention Figure 3 A magnified detail of the middle A;

[0029] Figure 5 This is a schematic diagram of the driving components and motor structure of the steel pipe hot-dip galvanizing automation equipment proposed by the present invention;

[0030] Figure 6 This is a schematic diagram of the disassembled structure of the first connecting piece of the steel pipe hot-dip galvanizing automation equipment proposed in the present invention;

[0031] Figure 7 This is a schematic diagram of the disassembled structure of the rotating plate and electromagnet of the steel pipe hot-dip galvanizing automation equipment proposed by the present invention;

[0032] Figure 8 This is a schematic diagram of the disassembled structure of the arc push plate, sliding arc bar and pressure spring of the steel pipe hot-dip galvanizing automation equipment proposed by the present invention;

[0033] Figure 9 This is a schematic diagram of the structure of the mobile components of the steel pipe hot-dip galvanizing automation equipment proposed by the present invention;

[0034] Figure 10 This is a schematic structural plan of the moving components and the toggle components of the steel pipe hot-dip galvanizing automation equipment proposed by the present invention;

[0035] Figure 11 This is a schematic structural diagram of the toggle assembly of the steel pipe hot-dip galvanizing automation equipment proposed by the present invention;

[0036] Figure 12 This is a schematic structural diagram of the toggle assembly and embedded assembly of the steel pipe hot-dip galvanizing automation equipment proposed in the present invention.

[0037] In the figure: 1. Zinc liquid tank; 11. Inclined plate; 12. Support plate; 13. Embedding hole; 14. Limit block; 2. Display table; 21. Blocking bar; 3. Moving assembly; 31. First horizontal moving part; 32. Clamping component; 321. Driving part; 322. Second electric telescopic rod; 323. L-shaped clamping claw; 33. T-shaped block; 34. Mounting bar; 35. Embedding assembly; 351. Rotating disk; 352. Transmission block; 353. Embedding rod; 4. Toggle assembly; 41. Third electric telescopic rod; 42. Fixing bar; 43. Sliding bar; 44. Toggle block; 5. Slag removal assembly; 51. Protective shell; 52. Pushing component; 521. Rotating plate; 522. Connecting rod; 523. First connecting member; 5231. First connecting shell; 5232. Second connecting shell; 5233. Torsion spring; 524. Mounting rod; 525. Scraper; 526. Electromagnet; 53. Scraping component; 531. Fourth electric telescopic rod; 532. Connecting plate; 533. Second connecting member; 534. Connecting column; 535. Arc-shaped push plate; 536. Sliding arc bar; 537. Pressure spring; 54. Mounting block; 55. Motor; 6. First electric telescopic rod; 7. Second horizontal moving part; 8. Blowing part. DETAILED DESCRIPTION

[0038] The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0039] Example

[0040] Reference Figures 1-12, Steel pipe hot dip galvanizing automation equipment, including a zinc liquid pool 1, a second horizontal moving part 7 is fixedly provided on one side of the zinc liquid pool 1, a placing table 2 is arranged at intervals on one side of the second horizontal moving part 7, and the upper end of the placing table 2 is connected to a blocking bar 21 by a bolt thread, and the placing table 2 is tilted, a moving component 3 is provided above the zinc liquid pool 1, and a toggle component 4 is provided on the outer surface of the moving component 3, a slag removal component 5 is provided on the upper end of the zinc liquid pool 1, and the moving component 3 and the slag removal component 5 are symmetrically arranged in two groups, both sides of the zinc liquid pool 1 are detachably connected to a first electric telescopic rod 6 through a bracket, and a push plate is fixedly provided at one end of the first electric telescopic rod 6, a blowing part 8 is provided through one side of the zinc liquid pool 1, and the blowing part 8 is connected to an external nitrogen heating device, through an external conveying device The special-shaped steel pipe can be placed on the display table 2, and the position of the blocking bar 21 can be adjusted according to demand. The blocking bar 21 can limit the special-shaped steel pipe to prevent the special-shaped steel pipe from sliding, which is convenient for the subsequent movement of the special-shaped steel pipe. The moving component 3 is used to move the special-shaped steel pipe and promote the drop of zinc liquid on the special-shaped steel pipe. The first electric telescopic rod 6 is used to drive the toggle component 4 to toggle the special-shaped steel pipe to rotate, thereby reducing the residual zinc liquid. The position of the first electric telescopic rod 6 can be adjusted according to demand. The slag removal component 5 is used to scrape the zinc slag on the surface of the zinc liquid in the zinc liquid pool 1, reduce the contact between the zinc slag and the special-shaped steel pipe, thereby improving the quality of hot-dip galvanizing of the special-shaped steel pipe, and the blowing part 8 can blow high-temperature nitrogen into the zinc liquid pool 1 to blow away the zinc slag in the zinc liquid below the slag removal component 5.

[0041] The slag removal assembly 5 includes a protective shell 51 arranged at the upper end of the second horizontal moving part 7, a mounting block 54 is fixedly provided on one side of the protective shell 51, a motor 55 is fixedly provided inside the protective shell 51, a pushing component 52 is provided at the output end of the motor 55, a scraping component 53 is provided at the upper end of the mounting block 54, the pushing component 52 includes a rotating plate 521 fixedly connected to the output end of the motor 55 and a connecting rod 522 rotatably connected to one side of the rotating plate 521, a first connecting member 523 is provided at the lower end of the connecting rod 522, a mounting rod 524 is provided at the lower end of the first connecting member 523, a scraper 525 is fixedly connected to the lower end of the mounting rod 524, and an electromagnet is fixedly connected to one end of the connecting rod 522 526, and the electromagnet 526 is in contact with the inner wall of the rotating plate 521. The horizontal movement of the protective shell 51 by the second horizontal moving part 7 is a well-known existing technology. Those skilled in the art are able to think of a specific structure. The position of the protective shell 51 can be adjusted by the second horizontal moving part 7, so that the pushing part 52 and the scraping part 53 can both move. The pushing part 52 can be driven to rotate by the motor 55. During the rotation, the scraper 525 will remain vertical under the action of its own weight. The connecting rod 522 can be magnetically fixed to the rotating plate 521 by the electromagnet 526, so that the vertical angle of the scraper 525 is fixed, which can prevent the scraper 525 from being pushed to rotate by the zinc slag.

[0042] The first connecting member 523 includes a first connecting shell 5231 fixedly connected to one end of the connecting rod 522, and the lower end of the first connecting shell 5231 is rotatably connected to the second connecting shell 5232, and the second connecting shell 5232 is fixedly connected to the upper end of the mounting rod 524. The second connecting shell 5232 can only rotate toward the side close to the scraping component 53. A torsion spring 5233 is fixedly connected between the first connecting shell 5231 and the second connecting shell 5232. Limiting the rotation direction of the second connecting shell 5232 by the rotational connection is a well-known prior art. Those skilled in the art are able to think of a specific structure. When one end of the scraper 525 is squeezed by a large force, the scraper 525, the mounting rod 524 and the second connecting shell 5232 will rotate to one side. The torsion spring 5233 can enable the scraper 525 to reset when no force is applied. When the scraper 525 pushes the zinc slag, the elastic force of the torsion spring 5233 can overcome the resistance of the zinc slag and prevent it from rotating.

[0043] The scraping component 53 includes a fourth electric telescopic rod 531 fixedly connected to the upper end of the pushing component 52, the upper end of the fourth electric telescopic rod 531 is fixedly connected to a connecting plate 532, the lower surface of the connecting plate 532 is provided with a second connecting member 533, the second connecting member 533 and the first connecting member 523 are components made of the same structure, the lower end of the second connecting member 533 is provided with a connecting column 534, the lower end of the connecting column 534 is fixedly connected to an arc-shaped push plate 535, the curvature of the inner side of the arc-shaped push plate 535 matches the moving trajectory of the scraping plate 525, and the height of the connecting plate 532, the second connecting member 533, the connecting column 534 and the arc-shaped push plate 535 can be adjusted by the fourth electric telescopic rod 531, so as to control whether the arc-shaped push plate 535 is in contact with the zinc liquid. The function of the second connecting member 533 is the same as that of the first connecting member 523, and is used to reset the arc-shaped push plate 535 after it rotates.

[0044] A sliding arc bar 536 is slidably engaged with one end of the arc-shaped push plate 535, and a pressure spring 537 is fixedly connected between the sliding arc bar 536 and the inner wall of the arc-shaped push plate 535. The sliding arc bar 536 can prevent zinc slag from passing through between the two groups of arc-shaped push plates 535. At the same time, the sliding arc bar 536 can move when squeezed, thereby adapting to the rotation of the two groups of arc-shaped push plates 535.

[0045] The moving component 3 includes a first horizontal moving part 31 arranged on an external bridge crane, and the two groups of first horizontal moving parts 31 are fixedly connected. A clamping part 32 is provided at the lower end of the first horizontal moving part 31, and a T-shaped block 33 is provided at the lower end of the clamping part 32. The lower end of the T-shaped block 33 is fixedly connected to a mounting bar 34, and multiple groups of embedded components 35 are provided on one side of the mounting bar 34, and the mounting bar 34 and the embedded components 35 are both inclined. The first horizontal moving part 31 can change its position under the action of the external bridge crane. The horizontal movement of the clamping part 32 by the first horizontal moving part 31 is a well-known existing technology, and those skilled in the art are able to think of the specific structure. The clamping part 32 is used to clamp and fix the T-shaped block 33, and the embedded component 35 is used to fix the special-shaped steel pipe.

[0046] The clamping component 32 includes a driving portion 321 arranged at the lower end of the first horizontal moving portion 31, and two sets of second electric telescopic rods 322 are provided at the lower end of the driving portion 321. The lower ends of the second electric telescopic rods 322 are fixedly connected to L-shaped clamping claws 323. The T-shaped block 33 is clamped and fixed by the two sets of L-shaped clamping claws 323. The driving portion 321 drives the two sets of second electric telescopic rods 322 and the L-shaped clamping claws 323 to move closer to or away from each other, which is a well-known prior art. Those skilled in the art are able to conceive of a specific structure and can control whether the T-shaped block 33 is clamped and fixed.

[0047] The T-shaped block 33 includes a rotating disk 351 rotatably connected to one side of the mounting bar 34. A transmission block 352 is fixedly connected to the outer surface of the rotating disk 351, and multiple groups of transmission blocks 352 are arranged at annular intervals. An embedded rod 353 is fixedly connected to one end of the rotating disk 351, and multiple groups of embedded rods 353 are arranged at conical intervals. The multiple groups of conically arranged embedded rods 353 can adapt to the use of special-shaped steel pipes of different shapes and sizes.

[0048] The toggle assembly 4 includes a third electric telescopic rod 41 fixedly connected to the outer surface of a group of second electric telescopic rods 322, the lower end of the third electric telescopic rod 41 is fixedly connected to a fixed bar 42, the lower end of the fixed bar 42 is slidably connected to a sliding bar 43, the lower end of the sliding bar 43 is fixedly connected to a toggle block 44, and multiple groups of toggle blocks 44 are arranged at intervals, the fixed bar 42, the sliding bar 43 and the toggle block 44 are all arranged at an angle, and the toggle block 44 and the transmission block 352 are arranged in the same vertical plane. The height of the fixed bar 42, the sliding bar 43 and the toggle block 44 can be adjusted through the third electric telescopic rod 41, so that the toggle block 44 moves downward a certain distance, so that the toggle block 44 can engage with the transmission block 352.

[0049] A notch is provided on one side of the zinc liquid pool 1, and an inclined plate 11 is fixedly connected to the inner wall of one side of the zinc liquid pool 1, and the upper end of the inclined plate 11 is flush with the notch. Support plates 12 are fixedly connected to the inner walls on both sides of the inclined plate 11, and multiple groups of embedded holes 13 are provided on the support plate 12. The upper ends of two groups of embedded holes 13 arranged symmetrically are movably engaged with limit blocks 14. The two groups of limit blocks 14 are used to limit the mounting strip 34. The limit blocks 14 can change their position by simple plugging and unplugging operations. The structures in contact with the zinc liquid in this device are coated with a ceramic coating, which can effectively reduce the possibility of the zinc liquid adhering to the structure.

[0050] In the present invention, the mobile assembly 3 is moved to the top of the display table 2 by an external bridge crane, and then the two groups of clamping parts 32 are moved away from each other by two groups of first horizontal moving parts 31. Then, the embedding assembly 35 is moved downward by the second electric telescopic rod 322, so that multiple groups of embedding assemblies 35 are respectively located at both ends of multiple groups of special-shaped steel pipes. Then, the multiple groups of embedding rods 353 are embedded in the two ends of the special-shaped steel pipes by two groups of first horizontal moving parts 31 to squeeze and fix them. Then, the mobile assembly 3 and the special-shaped steel pipes are moved to the top of the zinc liquid pool 1 by an external bridge crane, and then the second electric telescopic rod 322 is extended to immerse the special-shaped steel pipes in the zinc liquid for hot-dip galvanizing, so that the mounting bar 34 contacts the support plate 12, and then the two groups of L-shaped clamps 323 are moved away from each other. And leave the zinc liquid, at this time a group of mounting bars 34 are in contact with the limit block 14, because the support plate 12 is tilted, under the action of its own weight, the positions of the special-shaped steel pipe, the mounting bars 34 and the embedded component 35 will not change, and zinc slag will appear on the surface of the zinc liquid during the hot-dip galvanizing process. The zinc slag under the pushing component 52 and the scraping component 53 is blown away by the blowing part 8, which can reduce the zinc slag adhering to the outside of the arc-shaped push plate 535 and reduce the cleaning frequency. Then the fourth electric telescopic rod 531 is shortened, and the lower end of the arc-shaped push plate 535 is embedded in the zinc liquid. At the same time, the scraper 525 is rotated by the motor 55. During the rotation process, the scraper 525 will remain vertical under the action of its own weight. When the scraper 525 rotates to the angle of contact with the zinc liquid, the electromagnet 526 is used to make the scraper 525 The vertical angle of the scraper 525 is fixed so that the scraper 525 can scrape the inner side of the arc-shaped push plate 535 and the surface of the zinc liquid, and then the slag removal component 5 is driven to move horizontally by the second horizontal moving part 7. The zinc slag on the surface of the zinc liquid can be pushed toward the inclined plate 11 by the toggling of the scraper 525 and the scraping of the arc-shaped push plate 535. In this process, the scraper 525 tilts into and out of the zinc liquid, which causes less disturbance to the zinc liquid and reduces the possibility of splashing of the zinc liquid. Through double-layer cleaning, the residual zinc slag on the surface of the zinc liquid can be reduced, and the cleaning effect can be improved. At the same time, the rotating scraper 525 will continue to scrape from the inner side of the arc-shaped push plate 535, and can scrape off the zinc slag adhered to the inner side of the arc-shaped push plate 535, and can avoid the large zinc slag group accumulated on the surface of the arc-shaped push plate 535 affecting the scraping effect. When the curved push plate 535 moves to the upper part of the lower end of the inclined plate 11, the height of the scraper 525 and the curved push plate 535 is adjusted by the fourth electric telescopic rod 531 and the motor 55, so that the zinc slag can be pushed out of the zinc liquid pool 1 along the inclined plate 11. An external collection box is placed on one side of the zinc liquid pool 1 to collect and process the zinc slag, and then the curved push plate 535 and the scraper 525 are separated from the zinc liquid, and then the curved push plate 535 and the scraper 525 are moved to one end of the zinc liquid pool 1 to reset. After the subsequent zinc slag is blown away by the blowing part 8, the curved push plate 535 and the scraper 525 repeat the scraping process and move to the upper part of the end of the special-shaped steel pipe away from the inclined plate 11, and then the two groups of T-shaped blocks 33 are clamped and slowly lifted upward to separate the special-shaped steel pipe from the zinc liquid inside the zinc liquid pool 1.During this process, since the special-shaped steel pipe is tilted and fixed, most of the excess zinc liquid can slide down to the inside of the zinc liquid pool 1 due to its own weight. The arc-shaped push plate 535 and the scraper 525 can continuously clean the area near the contact point between the special-shaped steel pipe and the zinc liquid, and can remove the zinc slag that floats up due to the lifting of the special-shaped steel pipe, thereby reducing the contact between the zinc slag and the special-shaped steel pipe. During the lifting process of the special-shaped steel pipe, the third electric telescopic rod 41 is used to engage the toggle block 44 with the transmission block 352, and at the same time, the toggle block 44 and the special-shaped steel pipe are lifted together, and the two sets of first electric telescopic rods 6 and the push plate reciprocate to push the sliding bar 43 to slide. , which can make multiple sets of rotating disks 351 and embedded rods 353 rotate forward and backward at a slow speed, thereby making multiple sets of special-shaped steel pipes rotate forward and backward at a slow speed, so that the special-shaped steel pipes can be rotated to move out of the zinc liquid. When the arc-shaped push plate 535 and the scraper 525 move to the position of the L-shaped clamping claw 323, the motor 55 is paused. Since the scraper 525 and the arc-shaped push plate 535 can both rotate, the scraper 525 and the arc-shaped push plate 535 can pass through the L-shaped clamping claw 323. Then, the torsion spring 5233 can make the scraper 525 and the arc-shaped push plate 535 rotate and reset, and the zinc slag is pushed out of the zinc liquid pool 1. , so that the scraper 525 and the arc-shaped push plate 535 move and reset, which is convenient for subsequent use. For the special-shaped steel pipe with a concave surface, the zinc liquid residue at the upper position can only slide down along the length direction. By rotating and moving out, the zinc liquid at the concave position can reach the dripping position faster, thereby reducing the residual zinc liquid. As the special-shaped steel pipe moves, the special-shaped steel pipe will be separated from the zinc liquid inside the zinc liquid pool 1. After separation, the special-shaped steel pipe will vibrate slightly through the expansion and contraction of the second electric telescopic rod 322, which can further promote the falling of the zinc liquid on the special-shaped steel pipe, thereby further reducing the residual zinc liquid and improving the cleaning effect. The quality of hot-dip galvanizing of special-shaped steel pipes is improved. The special-shaped steel pipes can then be moved to an external cooling device to complete the hot-dip galvanizing. The present invention not only realizes the automated hot-dip galvanizing of special-shaped steel pipes, but also realizes the automated removal of zinc slag on the surface of the zinc liquid. The push of the scraper 525 and the arc-shaped push plate 535 not only removes the zinc slag, but also prevents the zinc slag from excessively accumulating on the arc-shaped push plate 535, thereby improving the zinc slag removal effect. At the same time, the arrangement of the embedded component 35, the toggle component 4, and the first electric telescopic rod 6 can promote the drop of zinc liquid on the special-shaped steel pipe, thereby improving the quality of hot-dip galvanizing of the special-shaped steel pipe.

[0051] The galvanizing process of the steel pipe hot-dip galvanizing automation equipment includes the above-mentioned steel pipe hot-dip galvanizing automation equipment, and further includes the following steps:

[0052] Step 1: Degreasing, pickling and flux plating pretreatment are performed on the special-shaped steel pipe, and then the pretreated special-shaped steel pipe is placed on the upper end of the display table 2 to wait for processing;

[0053] Step 2: Move the special-shaped steel pipe to the top of the zinc liquid pool 1 by the moving component 3, and then immerse the special-shaped steel pipe in the zinc liquid for hot-dip galvanizing by the moving component 3;

[0054] Step 3: During the soaking process, the zinc slag on the surface of the zinc liquid is cleaned by the slag removal component 5;

[0055] Step 4: Lift the special-shaped steel pipe by moving the assembly 3. During this process, the special-shaped steel pipe is rotated forward and backward by toggling the assembly 4 and the first electric telescopic rod 6. The special-shaped steel pipe is slightly vibrated by the moving assembly 3, thereby quickly removing the residual zinc liquid on the surface of the special-shaped steel pipe;

[0056] Step 5: The special-shaped steel pipe is transported to the cooling equipment through the mobile component 3 for cooling, thus completing the entire hot-dip galvanizing process.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An automated equipment for hot-dip galvanizing of steel pipes, comprising a zinc liquid pool (1), characterized in that: A second horizontal moving part (7) is fixedly provided on one side of the zinc liquid pool (1), a placing table (2) is spaced apart on one side of the second horizontal moving part (7), and a blocking bar (21) is connected to the upper end of the placing table (2) by a bolt thread, and the placing table (2) is tilted, a moving component (3) is provided above the zinc liquid pool (1), a toggle component (4) is provided on the outer surface of the moving component (3), a slag removal component (5) is provided on the upper end of the zinc liquid pool (1), and two groups of the moving component (3) and the slag removal component (5) are symmetrically provided, both sides of the zinc liquid pool (1) are detachably connected to a first electric telescopic rod (6) through a bracket, and a push plate is fixedly provided at one end of the first electric telescopic rod (6), and a blowing part (8) is provided through one side of the zinc liquid pool (1), and the blowing part (8) is connected to an external nitrogen heating device; The slag removal assembly (5) comprises a protective shell (51) arranged at the upper end of the second horizontal moving part (7), a mounting block (54) is fixedly arranged on one side of the protective shell (51), a motor (55) is fixedly arranged inside the protective shell (51), a pushing component (52) is arranged at the output end of the motor (55), a scraping component (53) is arranged at the upper end of the mounting block (54), the pushing component (52) comprises a rotating plate (521) fixedly connected to the output end of the motor (55) and a connecting rod (522) rotatably connected to one side of the rotating plate (521), a first connecting member (523) is arranged at the lower end of the connecting rod (522), a mounting rod (524) is arranged at the lower end of the first connecting member (523), a scraping plate (525) is fixedly connected to the lower end of the mounting rod (524), an electromagnet (526) is fixedly connected to one end of the connecting rod (522), and the electromagnet (526) contacts the inner wall of the rotating plate (521).

2. The steel pipe hot dip galvanizing automation equipment according to claim 1, characterized in that: The first connecting member (523) comprises a first connecting shell (5231) fixedly connected to one end of the connecting rod (522); the lower end of the first connecting shell (5231) is rotatably connected to a second connecting shell (5232); the second connecting shell (5232) is fixedly connected to the upper end of the mounting rod (524); the second connecting shell (5232) can only rotate toward a side close to the scraping component (53); and a torsion spring (5233) is fixedly connected between the first connecting shell (5231) and the second connecting shell (5232).

3. The steel pipe hot dip galvanizing automation equipment according to claim 1, characterized in that: The scraping component (53) includes a fourth electric telescopic rod (531) fixedly connected to the upper end of the pushing component (52); the upper end of the fourth electric telescopic rod (531) is fixedly connected to a connecting plate (532); a second connecting member (533) is provided on the lower surface of the connecting plate (532); the second connecting member (533) and the first connecting member (523) are components made of the same structure; a connecting column (534) is provided at the lower end of the second connecting member (533); the lower end of the connecting column (534) is fixedly connected to an arc-shaped push plate (535); the curvature of the inner side of the arc-shaped push plate (535) matches the moving trajectory of the scraping plate (525).

4. The steel pipe hot dip galvanizing automation equipment according to claim 3, characterized in that: One end of the arc-shaped push plate (535) is slidably engaged with a sliding arc strip (536), and a pressure spring (537) is fixedly connected between the sliding arc strip (536) and the inner wall of the arc-shaped push plate (535).

5. The steel pipe hot dip galvanizing automation equipment according to claim 1, characterized in that: The moving assembly (3) comprises a first horizontal moving part (31) arranged on an external bridge crane, two groups of the first horizontal moving parts (31) are fixedly connected, a clamping component (32) is provided at the lower end of the first horizontal moving part (31), a T-shaped block (33) is provided at the lower end of the clamping component (32), a mounting bar (34) is fixedly connected to the lower end of the T-shaped block (33), a plurality of embedded components (35) are provided on one side of the mounting bar (34), and the mounting bar (34) and the embedded components (35) are both arranged at an angle.

6. The automatic equipment for hot-dip galvanizing of steel pipes according to claim 5, characterized in that: The clamping component (32) comprises a driving portion (321) arranged at the lower end of the first horizontal moving portion (31); two sets of second electric telescopic rods (322) are arranged at the lower end of the driving portion (321); the lower ends of the second electric telescopic rods (322) are fixedly connected to L-shaped clamping claws (323); and the T-shaped block (33) is clamped and fixed by the two sets of L-shaped clamping claws (323).

7. The automatic equipment for hot-dip galvanizing of steel pipes according to claim 5, characterized in that: The T-shaped block (33) comprises a rotating disk (351) rotatably connected to one side of the mounting bar (34); a transmission block (352) is fixedly connected to the outer surface of the rotating disk (351); and the transmission blocks (352) are arranged in a plurality of groups at intervals in an annular shape; and an embedded rod (353) is fixedly connected to one end of the rotating disk (351); and the embedded rod (353) is arranged in a plurality of groups at intervals in a conical shape.

8. The automatic equipment for hot-dip galvanizing of steel pipes according to claim 6, characterized in that: The toggle assembly (4) comprises a third electric telescopic rod (41) fixedly connected to the outer surface of a group of the second electric telescopic rods (322); the lower end of the third electric telescopic rod (41) is fixedly connected to a fixed bar (42); the lower end of the fixed bar (42) is slidably connected to a sliding bar (43); the lower end of the sliding bar (43) is fixedly connected to a toggle block (44); and a plurality of toggle blocks (44) are arranged at intervals; the fixed bar (42), the sliding bar (43) and the toggle block (44) are all arranged obliquely, and the toggle block (44) and the transmission block (352) are arranged on the same vertical plane.

9. The steel pipe hot dip galvanizing automation equipment according to claim 1, characterized in that: A notch is provided on one side of the zinc liquid pool (1); an inclined plate (11) is fixedly connected to the inner wall of one side of the zinc liquid pool (1), and the upper end of the inclined plate (11) is flush with the notch; support plates (12) are fixedly connected to the inner walls of both sides of the inclined plate (11); a plurality of groups of embedded holes (13) are provided on the support plates (12); and the upper ends of two symmetrically arranged groups of embedded holes (13) are movably engaged with limit blocks (14).

10. The galvanizing process of the steel pipe hot dip galvanizing automation equipment is characterized by: The automatic equipment for hot-dip galvanizing of steel pipes according to claim 9 further comprises the following steps: S1: Degreasing, pickling and plating pretreatment are performed on the special-shaped steel pipe, and then the pretreated special-shaped steel pipe is placed on the upper end of the display table (2) to wait for processing; S2: moving the special-shaped steel pipe to the top of the zinc liquid pool (1) by the moving component (3), and then immersing the special-shaped steel pipe into the zinc liquid for hot-dip galvanizing by the moving component (3); S3: During the soaking process, the zinc slag on the surface of the zinc liquid is cleaned by the slag removal component (5); S4: The special-shaped steel pipe is lifted up by the moving component (3). During this process, the special-shaped steel pipe is rotated forward and backward by the toggle component (4) and the first electric telescopic rod (6). The special-shaped steel pipe is slightly vibrated by the moving component (3), thereby quickly removing the residual zinc liquid on the surface of the special-shaped steel pipe; S5: The special-shaped steel pipe is transported to the cooling equipment through the moving component (3) for cooling, thus completing the entire hot-dip galvanizing process.

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