Automatic equipment for hot galvanizing of steel pipes and galvanizing process

Abstract

The present application relates to the technical field of steel pipe hot galvanizing, and particularly relates to steel pipe hot galvanizing automation equipment and a galvanizing process, which comprises a zinc liquid pool, one side of the zinc liquid pool is fixedly provided with a second horizontal moving part, the second horizontal moving part is provided with a placing table at intervals on one side, a blocking strip is threadedly connected to the upper end of the placing table through bolts, a moving assembly is arranged above the zinc liquid pool, a poking assembly is arranged on the outer surface of the moving assembly, a deslagging assembly is arranged on the upper end of the zinc liquid pool, first electric telescopic rods are detachably connected to the two sides of the zinc liquid pool through supports, a push plate is fixedly arranged at one end of the first electric telescopic rods, and a gas blowing part is arranged through the side of the zinc liquid pool. Through the arrangement of the moving assembly and the deslagging assembly, the automatic hot galvanizing of special-shaped steel pipes is realized, and the automatic removal of zinc residues on the surface of the zinc liquid is also realized. Through the arrangement of the moving assembly, the poking assembly and the first electric telescopic rods, the residue of the zinc liquid can be reduced, and the possibility of the occurrence of zinc tumors is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of steel pipe hot galvanizing, in particular to a steel pipe hot galvanizing automation equipment and a galvanizing process. BACKGROUND

[0002] Steel pipe hot galvanizing is a process of immersing a steel pipe after degreasing, pickling and plating pretreatment into a molten zinc liquid at 445-465°C to form a dense plating layer on the surface through iron-zinc alloy reaction, and finally obtaining a corrosion protection layer through cooling and passivation, which has a sacrificial anode protection and physical barrier double corrosion protection mechanism.

[0003] A steel pipe hot galvanizing device is disclosed in Chinese Patent No. CN118563235B, which comprises a galvanizing pool, sliding rails and galvanized steel pipes. Both sliding rails are fixedly installed on the ground, and the surfaces of both sliding rails are respectively slidingly connected with first and second moving supports. The top end of the first moving support is rotationally connected with a first cross beam, and the upper surface of the first cross beam is fixedly installed with a first bracket. The two longitudinal arm ends of the first bracket are slidingly provided with a second cross beam, and the first bracket is fixedly installed with a second motor. The output shaft of the second motor is fixedly connected with a longitudinal drive screw, and the longitudinal drive screw is threadedly inserted into the middle part of the second cross beam. The lower surfaces of both ends of the second cross beam are fixedly connected with iron chains, and the lower ends of the iron chains are fixedly connected with lifting rods. The lifting rods are rotationally connected with rolling supporting rods.

[0004] The above 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 using a special-shaped steel pipe with an outwardly concave inner surface, the sliding path of the special-shaped steel pipe at the corner is limited, and only the length direction can be slid, which cannot quickly slide to the special-shaped steel pipe gathering line to drop. The zinc liquid remaining on the special-shaped steel pipe is easy to solidify into zinc nodules, and the zinc residue on the surface of the zinc liquid contacting the steel pipe will cause serious quality defects. SUMMARY

[0005] The purpose of the present application is to solve the problem of the existing technology that the zinc liquid remaining on the special-shaped steel pipe is easy to solidify into zinc nodules, and the zinc residue on the surface of the zinc liquid contacting the steel pipe will cause serious quality defects. The steel pipe hot galvanizing automation equipment and the galvanizing process are proposed.

[0006] In order to achieve the above object, the technical scheme adopted by the present application is as follows: the steel pipe hot galvanizing automatic equipment comprises a zinc liquid pool, a second horizontal moving part is fixedly arranged on one side of the zinc liquid pool, a placing table is arranged at intervals on one side of the second horizontal moving part, a blocking strip is threadedly connected to the upper end of the placing table, the placing table is arranged obliquely, a moving assembly is arranged above the zinc liquid pool, a pushing assembly is arranged on the outer surface of the moving assembly, a deslagging assembly is arranged on the upper end of the zinc liquid pool, two groups of the moving assembly and the deslagging assembly are symmetrically arranged, first electric telescopic rods are detachably connected to the two sides of the zinc liquid pool through supports, a push plate is fixedly arranged at one end of the first electric telescopic rod, a gas blowing part is arranged through one side of the zinc liquid pool, and the gas blowing part is connected with an external nitrogen gas heating device.

[0007] The deslagging assembly comprises a protective shell arranged on the upper end of the second horizontal moving part, an installation block is fixedly arranged on one side of the protective shell, a motor is fixedly arranged in the protective shell, a pushing component is arranged at the output end of the motor, a deslagging component is arranged on the upper end of the installation block, the pushing component comprises 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 piece is arranged at the lower end of the connecting rod, an installation rod is arranged at the lower end of the first connecting piece, a scraper is fixedly connected to the lower end of the installation 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 piece comprises a first connecting shell fixedly connected to one end of the connecting rod, a second connecting shell is rotatably connected to the lower end of the first connecting shell, the second connecting shell is fixedly connected to the upper end of the installation rod, the second connecting shell can only rotate towards the side close to the deslagging component, and a torsion spring is fixedly connected between the first connecting shell and the second connecting shell.

[0009] Preferably, the deslagging component comprises a fourth electric telescopic rod fixedly connected to the upper end of the pushing component, a connecting plate is fixedly connected to the upper end of the fourth electric telescopic rod, a second connecting piece is arranged on the lower surface of the connecting plate, the second connecting piece and the first connecting piece are components made of the same structure, a connecting column is arranged at the lower end of the second connecting piece, an arc-shaped push plate is fixedly connected to the lower end of the connecting column, and the curvature of the inner side of the arc-shaped push plate matches the movement track of the scraper.

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

[0011] Preferably, the moving assembly comprises a first horizontal moving part arranged on an external bridge crane, the two groups of first horizontal moving parts are fixedly connected, a clamping component is arranged at the lower end of the first horizontal moving part, a T-shaped block is arranged at the lower end of the clamping component, an installation strip is fixedly connected to the lower end of the T-shaped block, a plurality of embedding assemblies are arranged on one side of the installation strip, and the installation strip and the embedding assemblies are arranged obliquely.

[0012] Preferably, the clamping component comprises a driving part arranged at the lower end of the first horizontal moving part, and the lower end of the driving part is provided with two groups of second electric telescopic rods, and the lower end of each second electric telescopic rod is fixedly connected with an L-shaped clamping jaw, and the T-shaped block is clamped and fixed by the two groups of L-shaped clamping jaws.

[0013] Preferably, the T-shaped block comprises a rotating disc rotatably connected to one side of the mounting strip, and a transmission block is fixedly connected to the outer surface of the rotating disc, and the transmission block is annularly and spacedly provided with multiple groups, and one end of the rotating disc is fixedly connected with an embedding rod, and the embedding rod is taperingly and spacedly provided with multiple groups.

[0014] Preferably, the pushing assembly comprises a third electric telescopic rod fixedly connected to the outer surface of one group of the second electric telescopic rods, and the lower end of the third electric telescopic rod is fixedly connected with a fixing strip, and the lower end of the fixing strip is slidably connected with a sliding strip, and the lower end of the sliding strip is fixedly connected with a pushing block, and the pushing block is spacedly provided with multiple groups, and the fixing strip, the sliding strip and the pushing block are all arranged obliquely, and the pushing block and the transmission block are arranged on the same vertical plane.

[0015] Preferably, a notch is formed in one side of the zinc liquid pool, and 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 embedding holes are formed in the support plates, and the upper ends of the two groups of embedding holes are movably clamped with limiting blocks.

[0016] The galvanizing process of the steel pipe hot galvanizing automatic equipment, comprising the steel pipe hot galvanizing automatic equipment, further comprises the following steps:

[0017] 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 placing table and waits for processing;

[0018] S2: the special-shaped steel pipe is moved above the zinc liquid pool by the moving assembly, and then the special-shaped steel pipe is immersed in the zinc liquid for hot galvanizing by the moving assembly;

[0019] S3: during the soaking process, the zinc dregs on the surface of the zinc liquid are cleaned by the deslagging assembly;

[0020] S4: the special-shaped steel pipe is lifted by the moving assembly, and in this process, the special-shaped steel pipe is reversely rotated by the pushing assembly and the first electric telescopic rod, and the special-shaped steel pipe is slightly vibrated by the moving assembly, so that the residual zinc liquid on the surface of the special-shaped steel pipe is quickly removed;

[0021] S5: the special-shaped steel pipe is conveyed into the cooling equipment for cooling by the moving assembly, and thus the whole hot galvanizing process is completed.

[0022] Compared with the prior art, the present application has the following advantages:

[0023] 1. Through the setting of the moving assembly and the slag removal assembly, the automatic hot galvanizing of special-shaped steel pipes is realized, the automatic removal of zinc slag on the surface of the zinc liquid can also be realized, the possibility of contact between the zinc slag and the special-shaped steel pipe can be effectively reduced, thereby the quality of the hot galvanizing of the special-shaped steel pipe is improved, manual operation is not needed, use is facilitated, through the pushing of the scraper and the arc-shaped push plate, not only the residue of the zinc slag is reduced, but also the excessive accumulation of the zinc slag on the arc-shaped push plate can be avoided, and the removal effect of the zinc slag is improved;

[0024] 2. Through the setting of the moving assembly, the shifting assembly and the first electric telescopic rod, the special-shaped steel pipe can be rotated and moved out of the zinc liquid, the zinc liquid at the recessed position can reach the dropping position faster, thereby the residue of the zinc liquid can be reduced, then through the extension and contraction of the second electric telescopic rod, the special-shaped steel pipe is slightly vibrated, the dropping of the zinc liquid on the special-shaped steel pipe can be further promoted, the residue of the zinc liquid can be further reduced, the possibility of the occurrence of zinc tumor is reduced, and the quality of the hot galvanizing of the special-shaped steel pipe is improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a whole structure schematic view of the steel pipe hot galvanizing automatic equipment put forward in the application;

[0026] Figure 2 It is a zinc liquid pool and slag removal assembly structure schematic view of the steel pipe hot galvanizing automatic equipment put forward in the application;

[0027] Figure 3 It is a slag removal assembly structure schematic view of the steel pipe hot galvanizing automatic equipment put forward in the application;

[0028] Figure 4 It is a steel pipe hot galvanizing automatic equipment put forward in the application Figure 3 It is a detail enlarged view of A;

[0029] Figure 5 It is a pushing part and motor structure schematic view of the steel pipe hot galvanizing automatic equipment put forward in the application;

[0030] Figure 6 It is a first connecting piece structure split schematic view of the steel pipe hot galvanizing automatic equipment put forward in the application;

[0031] Figure 7 It is a rotating plate and electromagnet structure split schematic view of the steel pipe hot galvanizing automatic equipment put forward in the application;

[0032] Figure 8 It is an arc-shaped push plate, sliding arc strip and pressure spring structure split schematic view of the steel pipe hot galvanizing automatic equipment put forward in the application;

[0033] Figure 9 It is a moving assembly structure schematic view of the steel pipe hot galvanizing automatic equipment put forward in the application;

[0034] Figure 10 The moving assembly and the poking assembly structure plane schematic view of the steel pipe hot galvanizing automatic equipment proposed in the present application;

[0035] Figure 11 The poking assembly structure schematic view of the steel pipe hot galvanizing automatic equipment proposed in the present application;

[0036] Figure 12 The poking assembly and the embedding assembly structure schematic view of the steel pipe hot galvanizing automatic equipment proposed in the present application.

[0037] In the figure: 1, zinc liquid pool; 11, inclined plate; 12, support plate; 13, embedding hole; 14, limiting block; 2, placing table; 21, blocking bar; 3, moving assembly; 31, first horizontal moving part; 32, clamping part; 321, driving part; 322, second electric telescopic rod; 323, L-shaped clamping jaw; 33, T-shaped block; 34, mounting bar; 35, embedding assembly; 351, rotating disc; 352, transmission block; 353, embedding rod; 4, poking assembly; 41, third electric telescopic rod; 42, fixed bar; 43, sliding bar; 44, poking block; 5, slag removing assembly; 51, protective shell; 52, pushing part; 521, rotating plate; 522, connecting rod; 523, first connecting piece; 5231, first connecting shell; 5232, second connecting shell; 5233, torsion spring; 524, mounting rod; 525, scraper; 526, electromagnet; 53, slag scraping part; 531, fourth electric telescopic rod; 532, connecting plate; 533, second connecting piece; 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, air blowing part. DETAILED DESCRIPTION

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

[0039] EXAMPLE

[0040] REFERENCE Figures 1-12The utility model provides an automatic equipment of steel pipe hot galvanizing, including zinc liquid pool 1, one side of zinc liquid pool 1 is fixedly arranged with second horizontal moving part 7, and the second horizontal moving part 7 one side interval is arranged with the placing table 2, and the placing table 2 upper end is connected with the blocking strip 21 through bolt screw thread, and the placing table 2 is arranged obliquely, and the mobile subassembly 3 is arranged at the upper of zinc liquid pool 1, and the mobile subassembly 3 outer surface is provided with the poking subassembly 4, and the zinc liquid pool 1 upper end is provided with the deslagging subassembly 5, and the mobile subassembly 3 and deslagging subassembly 5 are all arranged with two groups of symmetry, and the both sides of zinc liquid pool 1 are all detachably connected with first electric telescopic handle 6 through support, and one end of first electric telescopic handle 6 is fixedly arranged with push plate, and one side of zinc liquid pool 1 is penetrated with blowing part 8, and blowing part 8 is connected with external nitrogen gas heating equipment, and through external conveying device can place special-shaped steel pipe on the placing table 2, the position of blocking strip 21 can be adjusted according to demand, and through blocking strip 21 can limit special-shaped steel pipe, avoid special-shaped steel pipe to slide down, facilitate the movement of special-shaped steel pipe subsequently, and the mobile subassembly 3 is used for moving special-shaped steel pipe and promotes the drop of zinc liquid on special-shaped steel pipe, and first electric telescopic handle 6 is used for driving poking subassembly 4 and poking special-shaped steel pipe rotation, to reduce the residue of zinc liquid, and the position of first electric telescopic handle 6 can be adjusted according to demand, and deslagging subassembly 5 is used for scraping the zinc dregs on the surface of zinc liquid in zinc liquid pool 1, reduces the contact of zinc dregs and special-shaped steel pipe, to improve the quality of special-shaped steel pipe hot galvanizing, and blowing part 8 can blow high-temperature nitrogen gas into the inside of zinc liquid pool 1, can blow the zinc dregs of zinc liquid under deslagging subassembly 5 away;

[0041] Deslagging subassembly 5 includes the protective shell 51 arranged on the second horizontal moving part 7 upper end, the mounting block 54 is fixedly arranged on the one side of protective shell 51, the motor 55 is fixedly arranged in the inside of protective shell 51, the pushing part 52 is arranged in the output end of motor 55, the slag scraping part 53 is arranged on the upper end of mounting block 54, the pushing part 52 includes the rotating plate 521 fixedly connected in the output end of motor 55 and the connecting rod 522 rotatably connected on one side of rotating plate 521, the first connecting piece 523 is arranged in the lower end of connecting rod 522, the mounting rod 524 is arranged in the lower end of first connecting piece 523, the scraper 525 is fixedly connected in the lower end of mounting rod 524, the electromagnet 526 is fixedly connected in one end of connecting rod 522, and the electromagnet 526 is in contact with the inner wall of rotating plate 521, the horizontal movement of protective shell 51 through the second horizontal moving part 7 is the prior art known to the public, and the person skilled in the art can think of the specific structure, the position of protective shell 51 can be adjusted through the second horizontal moving part 7, so that the pushing part 52 and slag scraping part 53 can be moved, the pushing part 52 can be rotated by the motor 55, and the scraper 525 can remain vertical under the action of gravity during the rotation process, the vertical angle of the scraper 525 can be fixed by magnetically attracting the connecting rod 522 and the rotating plate 521 through the electromagnet 526, so that the scraper 525 is prevented from being rotated by the zinc dregs.

[0042] The first connecting piece 523 comprises a first connecting shell 5231 fixedly connected at one end of the connecting rod 522, a second connecting shell 5232 rotatably connected at the lower end of the first connecting shell 5231, and the second connecting shell 5232 is fixedly connected with the upper end of the mounting rod 524, the second connecting shell 5232 can only rotate to the side close to the slag scraping component 53, a torsion spring 5233 is fixedly connected between the first connecting shell 5231 and the second connecting shell 5232, the rotating direction of the second connecting shell 5232 is restricted by the rotary connection, which is the prior art known to the public, and those skilled in the art can think of the specific structure, when the scraper 525 is pressed by a larger force at one end, the scraper 525, the mounting rod 524 and the second connecting shell 5232 will rotate to one side, the torsion spring 5233 can reset the scraper 525 when it is not under stress, and the elastic force of the torsion spring 5233 can overcome the resistance of the zinc slag to avoid its rotation.

[0043] The slag scraping component 53 comprises a fourth electric telescopic rod 531 fixedly connected at the upper end of the pushing component 52, a connecting plate 532 fixedly connected at the upper end of the fourth electric telescopic rod 531, a second connecting piece 533 provided on the lower surface of the connecting plate 532, the second connecting piece 533 and the first connecting piece 523 are components made of the same structure, a connecting column 534 provided at the lower end of the second connecting piece 533, an arc-shaped push plate 535 fixedly connected at the lower end of the connecting column 534, the arc of the inner side of the arc-shaped push plate 535 matches the moving track of the scraper 525, the height of the connecting plate 532, the second connecting piece 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 piece 533 is the same as that of the first connecting piece 523, and it is used to reset the arc-shaped push plate 535 after it rotates.

[0044] The arc-shaped push plate 535 has a sliding arc strip 536 slidingly engaged at one end, a pressure spring 537 fixedly connected between the inner wall of the arc-shaped push plate 535 and the sliding arc strip 536, the sliding arc strip 536 can block the zinc slag from passing between the two groups of arc-shaped push plates 535, and the sliding arc strip 536 can move when it is pressed, so as to adapt to the rotation of the two groups of arc-shaped push plates 535.

[0045] The mobile assembly 3 comprises a first horizontal moving part 31 arranged on the external bridge crane, two groups of the first horizontal moving parts 31 are fixedly connected, the first horizontal moving part 31 is provided with a clamping part 32 at the lower end, the clamping part 32 is provided with a T-shaped block 33 at the lower end, the T-shaped block 33 is fixedly connected with a mounting strip 34 at the lower end, a plurality of embedding assemblies 35 are arranged on one side of the mounting strip 34, and the mounting strip 34 and the embedding assemblies 35 are both arranged obliquely, the first horizontal moving part 31 can change the position under the action of the external bridge crane, the clamping part 32 is driven by the first horizontal moving part 31 to move horizontally, which is a known prior art, and a person skilled in the art can think of the specific structure, the clamping part 32 is used for clamping and fixing the T-shaped block 33, and the embedding assembly 35 is used for fixing the special-shaped steel pipe.

[0046] The clamping part 32 comprises a driving part 321 arranged at the lower end of the first horizontal moving part 31, two groups of second electric telescopic rods 322 are arranged at the lower end of the driving part 321, L-shaped clamping jaws 323 are fixedly connected with the second electric telescopic rods 322 at the lower end, the T-shaped block 33 is clamped and fixed by the two groups of L-shaped clamping jaws 323, and the two groups of second electric telescopic rods 322 and the L-shaped clamping jaws 323 are driven to move close to or away from each other by the driving part 321, which is a known prior art, and a person skilled in the art can think of the specific structure and control whether the T-shaped block 33 is clamped and fixed.

[0047] The T-shaped block 33 comprises a rotating disc 351 rotatably connected to one side of the mounting strip 34, a transmission block 352 is fixedly connected to the outer surface of the rotating disc 351, and a plurality of groups of the transmission blocks 352 are arranged in a ring shape at intervals, an embedding rod 353 is fixedly connected to one end of the rotating disc 351, and a plurality of groups of the embedding rods 353 are arranged in a tapered shape at intervals, and the plurality of groups of the embedding rods 353 arranged in a tapered shape can adapt to special-shaped steel pipes of different shapes and sizes.

[0048] The dial assembly 4 comprises a third electric telescopic rod 41 fixedly connected to the outer surface of one group of the second electric telescopic rods 322, a fixed strip 42 is fixedly connected to the lower end of the third electric telescopic rod 41, a sliding strip 43 is slidably connected to the lower end of the fixed strip 42, a dial block 44 is fixedly connected to the lower end of the sliding strip 43, and a plurality of groups of the dial blocks 44 are arranged at intervals, the fixed strip 42, the sliding strip 43 and the dial block 44 are all arranged obliquely, and the dial block 44 and the transmission block 352 are arranged on the same vertical plane, the height of the fixed strip 42, the sliding strip 43 and the dial block 44 can be adjusted by the third electric telescopic rod 41, so that the dial block 44 moves downward by a distance, so that the dial block 44 can be engaged with the transmission block 352.

[0049] The zinc liquid pool 1 is provided with a notch on one side, a slope plate 11 is fixedly connected to the inner wall of the one side of the zinc liquid pool 1, the upper end of the slope plate 11 is flush with the notch, support plates 12 are fixedly connected to the inner walls on the two sides of the slope plate 11, a plurality of groups of embedded holes 13 are formed in the support plates 12, the upper ends of the two groups of embedded holes 13 movably clasp limiting blocks 14, the two groups of limiting blocks 14 are used for limiting the installation bars 34, the limiting blocks 14 can change positions through simple plug-in and plug-out operations, ceramic coating is coated on the structures in contact with the zinc liquid in the device, and the possibility that the zinc liquid is adhered to the structures can be effectively reduced.

[0050] In the present application, the moving assembly 3 is moved above the placing table 2 by the external bridge crane, then the two sets of clamping parts 32 are moved away from each other by the two sets of first horizontal moving parts 31, then the embedding assembly 35 is moved downward by the second electric telescopic rod 322, so that the multiple embedding assemblies 35 are respectively located at the two ends of the multiple special-shaped steel pipes, then the multiple embedding rods 353 are embedded into the two ends of the special-shaped steel pipes to extrude and fix them by the two sets of first horizontal moving parts 31, then the moving assembly 3 and the special-shaped steel pipe are moved above the zinc liquid pool 1 by the external bridge crane, then the second electric telescopic rod 322 is elongated, the special-shaped steel pipe is immersed in the zinc liquid for hot galvanizing, the mounting strip 34 is in contact with the supporting plate 12, then the two sets of L-shaped clamping jaws 323 are moved away from each other and away from the zinc liquid, at this time, one set of mounting strips 34 is in contact with the limiting block 14, due to the inclined arrangement of the supporting plate 12, under the action of gravity, the positions of the special-shaped steel pipe, the mounting strip 34 and the embedding assembly 35 will not change, during the hot galvanizing process, zinc slag will appear on the surface of the zinc liquid, the zinc slag below the pushing part 52 and the slag removing part 53 is blown away by the air blowing part 8, which can reduce the zinc slag adhered to the outer side of the arc-shaped push plate 535, reduce the cleaning frequency, then the fourth electric telescopic rod 531 is shortened, the lower end of the arc-shaped push plate 535 is embedded into the zinc liquid, at the same time, the scraper 525 is rotated by the motor 55, during the rotation process, the scraper 525 will keep vertical under the action of gravity, when the scraper 525 is rotated to the angle of contact with the zinc liquid, the vertical angle of the scraper 525 is fixed by the electromagnet 526, so that the scraper 525 can be scraped on the inner side of the arc-shaped push plate 535 and the surface of the zinc liquid, then the slag removing assembly 5 is horizontally moved by the second horizontal moving part 7, by the pushing of the scraper 525 and the scraping of the arc-shaped push plate 535, the zinc slag on the surface of the zinc liquid can be pushed to the inclined plate 11, during this process, the scraper 525 is inclined to enter and leave the zinc liquid, which has little disturbance to the zinc liquid, which can reduce the possibility of splashing of the zinc liquid, by double-layer cleaning, the residual zinc slag on the surface of the zinc liquid can be reduced, the cleaning effect is improved, at the same time, the rotating scraper 525 will continuously scrape from the inner side of the arc-shaped push plate 535, which can remove the zinc slag adhered to the inner side of the arc-shaped push plate 535, which can avoid the influence of the large zinc slag group accumulated on the surface of the arc-shaped push plate 535 on the slag removing effect, when the scraper 525 and the arc-shaped push plate 535 move above the lower end of the inclined plate 11, the height of the scraper 525 and the arc-shaped push plate 535 is adjusted by the fourth electric telescopic rod 531 and the motor 55, which can push the zinc slag out of the zinc liquid pool 1 along the inclined plate 11, an external collection tank is placed on one side of the zinc liquid pool 1 to collect and process the zinc slag, then the arc-shaped push plate 535 and the scraper 525 are separated from the zinc liquid, and then the arc-shaped push plate 535 and the scraper 525 are moved to one end of the zinc liquid pool 1 for resetting, after the subsequent zinc slag is blown away by the air blowing part 8, the arc-shaped push plate 535 and the scraper 525 repeat the slag removing process and move above the end of the special-shaped steel pipe away from the inclined plate 11, then the two sets of T-shaped blocks 33 are clamped and slowly lifted upward, so that the special-shaped steel pipe is separated from the zinc liquid in the zinc liquid pool 1,In this process, because the special-shaped steel pipe is fixed obliquely, most of the excess zinc liquid can slide into the zinc liquid pool 1 due to gravity, the arc-shaped push plate 535 and the scraper 525 can continuously clean near the position where the special-shaped steel pipe contacts the zinc liquid, the zinc dregs that float up due to the lifting of the special-shaped steel pipe can be removed, the contact between the zinc dregs and the special-shaped steel pipe is reduced, in the lifting process of the special-shaped steel pipe, the driving block 44 is engaged with the transmission block 352 by the third electric telescopic rod 41, at the same time, the driving block 44 is lifted together with the special-shaped steel pipe, the sliding bar 43 is pushed to slide by the two groups of first electric telescopic rods 6 and the push plate, the multiple groups of rotating discs 351 and embedded rods 353 are slowly and reversely rotated, so that the multiple groups of special-shaped steel pipes are also slowly and reversely rotated, the special-shaped steel pipe can be rotated and moved 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 jaw 323, the motor 55 is paused, because the scraper 525 and the arc-shaped push plate 535 can rotate, the scraper 525 and the arc-shaped push plate 535 can pass through the L-shaped clamping jaw 323, then the scraper 525 and the arc-shaped push plate 535 are rotated and reset by the torsion spring 5233, after the zinc dregs are pushed out of the zinc liquid pool 1, the scraper 525 and the arc-shaped push plate 535 are moved and reset, which is convenient for subsequent use, for the special-shaped steel pipe with a recess on the surface, the zinc liquid residue on the upper position can only slide in the length direction, by rotating and moving out, the zinc liquid at the recess position can reach the dripping position faster, so that the zinc liquid residue can be reduced, with the movement of the special-shaped steel pipe, the special-shaped steel pipe is separated from the zinc liquid in the zinc liquid pool 1, after the separation, the special-shaped steel pipe is slightly vibrated by the extension and retraction of the second electric telescopic rod 322, which can further promote the falling of the zinc liquid on the special-shaped steel pipe, so that the zinc liquid residue can be further reduced, the quality of hot galvanizing of the special-shaped steel pipe is improved, then the special-shaped steel pipe is moved to the external cooling equipment, and the hot galvanizing is completed, the present application not only can realize the automatic hot galvanizing of the special-shaped steel pipe, but also can realize the automatic removal of the zinc dregs on the surface of the zinc liquid, by the pushing of the scraper 525 and the arc-shaped push plate 535, the zinc dregs can be removed, and the excessive accumulation of the zinc dregs on the arc-shaped push plate 535 can be avoided, the removal effect of the zinc dregs is improved, at the same time, by the arrangement of the embedded assembly 35, the driving assembly 4 and the first electric telescopic rod 6, the falling of the zinc liquid on the special-shaped steel pipe is promoted, and the quality of hot galvanizing of the special-shaped steel pipe is improved.

[0051] The galvanizing process of the steel pipe hot galvanizing automatic equipment includes the steel pipe hot galvanizing automatic equipment and the following steps.

[0052] Step one: the special-shaped steel pipe is subjected to degreasing, pickling and plating-assisted pretreatment, and then the pretreated special-shaped steel pipe is placed on the upper end of the placing table 2 and waits for processing;

[0053] Step two: the special-shaped steel pipe is moved above the zinc liquid pool 1 by the moving assembly 3, and then the special-shaped steel pipe is immersed in the zinc liquid for hot galvanizing by the moving assembly 3.

[0054] Step three: during the soaking process, the zinc dregs on the surface of the zinc liquid are cleaned by the dreg removing assembly 5;

[0055] Step four: the special-shaped steel pipe is lifted by the moving assembly 3, during which the special-shaped steel pipe is reversely rotated by the poking assembly 4 and the first electric telescopic rod 6, and the special-shaped steel pipe is slightly vibrated by the moving assembly 3, so that the residual zinc liquid on the surface of the special-shaped steel pipe is quickly removed;

[0056] Step five: the special-shaped steel pipe is conveyed to the cooling equipment by the moving assembly 3 for cooling, and thus the whole hot galvanizing process is completed.

[0057] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. Hot galvanizing automatic plant for steel pipes comprising a bath (1) of molten zinc, characterized in that, The zinc liquid pool (1) is fixedly provided with a second horizontal moving part (7) on one side, a placing table (2) is provided at intervals on one side of the second horizontal moving part (7), a blocking strip (21) is threadedly connected to the upper end of the placing table (2), the placing table (2) is arranged obliquely, a moving assembly (3) is arranged above the zinc liquid pool (1), a pushing assembly (4) is arranged on the outer surface of the moving assembly (3), a slag removing assembly (5) is arranged on the upper end of the zinc liquid pool (1), and the moving assembly (3) and the slag removing assembly (5) are symmetrically arranged in two groups, first electric telescopic rods (6) are detachably connected to the two sides of the zinc liquid pool (1) through supports, a push plate is fixedly arranged at one end of the first electric telescopic rod (6), a gas blowing part (8) is arranged through one side of the zinc liquid pool (1), and the gas blowing part (8) is connected with external nitrogen gas heating equipment; The slag removing assembly (5) comprises a protective shell (51) arranged on the upper end of the second horizontal moving part (7), an installation block (54) is fixedly arranged on one side of the protective shell (51), a motor (55) is fixedly arranged in the protective shell (51), a pushing part (52) is arranged at the output end of the motor (55), a slag scraping part (53) is arranged on the upper end of the installation block (54), the pushing part (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 piece (523) is arranged at the lower end of the connecting rod (522), an installation rod (524) is arranged at the lower end of the first connecting piece (523), a scraper (525) is fixedly connected to the lower end of the installation rod (524), an electromagnet (526) is fixedly connected to one end of the connecting rod (522), and the electromagnet (526) is in contact with the inner wall of the rotating plate (521); The slag scraping part (53) comprises a fourth electric telescopic rod (531) fixedly connected to the upper end of the pushing part (52), a connecting plate (532) is fixedly connected to the upper end of the fourth electric telescopic rod (531), a second connecting piece (533) is arranged on the lower surface of the connecting plate (532), the second connecting piece (533) and the first connecting piece (523) are components made of the same structure, a connecting column (534) is arranged at the lower end of the second connecting piece (533), an arc-shaped push plate (535) is fixedly connected to the lower end of the connecting column (534), the curvature of the inner side of the arc-shaped push plate (535) matches the movement track of the scraper (525), a sliding arc strip (536) is slidably connected to one end of the arc-shaped push plate (535), 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); The moving assembly (3) comprises a first horizontal moving part (31) arranged on an external bridge crane, the two groups of first horizontal moving parts (31) are fixedly connected, a clamping part (32) is arranged at the lower end of the first horizontal moving part (31), a T-shaped block (33) is arranged at the lower end of the clamping part (32), an installation strip (34) is fixedly connected to the lower end of the T-shaped block (33), a plurality of embedding assemblies (35) are arranged on one side of the installation strip (34), and the installation strip (34) and the embedding assemblies (35) are arranged obliquely. The clamping component (32) comprises a driving part (321) arranged at the lower end of the first horizontal moving part (31), and two groups of second electric telescopic rods (322) are arranged at the lower end of the driving part (321); the T-shaped block (33) comprises a rotating disc (351) rotatably connected to one side of the mounting strip (34), a transmission block (352) is fixedly connected to the outer surface of the rotating disc (351), and a plurality of groups of the transmission block (352) are arranged at intervals in a ring shape; one end of the rotating disc (351) is fixedly connected with an embedded rod (353), and a plurality of groups of the embedded rod (353) are arranged at intervals in a tapered shape. The shifting assembly (4) comprises a third electric telescopic rod (41) fixedly connected to the outer surface of one group of the second electric telescopic rods (322), a fixed strip (42) fixedly connected to the lower end of the third electric telescopic rod (41), a sliding strip (43) slidably connected to the lower end of the fixed strip (42), and a shifting block (44) fixedly connected to the lower end of the sliding strip (43); a plurality of groups of the shifting block (44) are arranged at intervals; the fixed strip (42), the sliding strip (43) and the shifting block (44) are all arranged obliquely, and the shifting block (44) is arranged on the same vertical plane as the transmission block (352).

2. The steel pipe hot galvanizing automation apparatus according to claim 1, characterized by, The first connecting part (523) comprises a first connecting shell (5231) fixedly connected to one end of the connecting rod (522), a second connecting shell (5232) rotatably connected to the lower end of the first connecting shell (5231), and a mounting rod (524) fixedly connected to the upper end of the second connecting shell (5232); the second connecting shell (5232) can only rotate towards the side close to the slag scraping part (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 apparatus according to claim 1, characterized by, The lower end of the second electric telescopic rod (322) is fixedly connected with an L-shaped clamping jaw (323), and the T-shaped block (33) is clamped and fixed by the two groups of L-shaped clamping jaws (323).

4. The steel pipe hot dip galvanizing automation apparatus according to claim 1, wherein A notch is formed in one side of the zinc liquid pool (1), a slope plate (11) is fixedly connected to the inner wall of one side of the zinc liquid pool (1), the upper end of the slope plate (11) is flush with the notch, support plates (12) are fixedly connected to the inner walls on both sides of the slope plate (11), a plurality of groups of embedded holes (13) are formed in the support plates (12), and limit blocks (14) are movably clamped in the upper ends of the two groups of embedded holes (13) arranged symmetrically.

5. A galvanizing process of a steel pipe hot galvanizing automation apparatus, characterized by, The steel pipe hot galvanizing automatic equipment of claim 1 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 placing table (2) to wait for processing; S2: the special-shaped steel pipe is moved above the zinc liquid pool (1) by the moving assembly (3), and then the special-shaped steel pipe is immersed in the zinc liquid to perform hot galvanizing by the moving assembly (3); S3: during the soaking process, the zinc dregs on the surface of the zinc liquid are cleaned by the slag removing assembly (5). S4: lifting the special-shaped steel pipe by the moving assembly (3), in the process, the special-shaped steel pipe is rotated forward and backward by the poking assembly (4) and the first electric telescopic rod (6), and the special-shaped steel pipe is slightly vibrated by the moving assembly (3), so that the residual zinc liquid on the surface of the special-shaped steel pipe is quickly removed; S5: the special-shaped steel pipe is conveyed to the cooling equipment by the moving assembly (3) for cooling, and thus the whole hot galvanizing process is completed.

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