Zinc pot device for hot galvanizing of steel pipe

Abstract

The invention relates to the technical field of galvanizing, in particular to a zinc pot device for hot galvanizing of steel pipes, which comprises a heating component for quickly hot galvanizing the steel pipes, and conveying components for conveying the steel pipes in batches are symmetrically arranged at the two ends of the heating component along the symmetry axis of the heating component. The upper end of the conveying component is slidably connected with a containing frame used for containing steel pipes in an array mode, a galvanizing tank is arranged below the heating component, and stretching mechanisms used for lifting the steel pipes are arranged at the two ends of the galvanizing tank along the symmetry axis of the galvanizing tank. Through the arranged heating component, rapid heating of the steel pipe can be achieved through electromagnetic induction, stable work of the induction coil can be guaranteed through circulating cooling of the water pump, and meanwhile the problems that in a traditional heating mode, heating of steel pipes of different models is slow, consequently, the galvanization efficiency is low, and galvanization is uneven are solved through the design of the U-shaped heating coil.

Description

Technical Field

[0001] This invention relates to the field of galvanizing technology, and in particular to a zinc pot apparatus for hot-dip galvanizing steel pipes. Background Technology

[0002] In the steel pipe processing industry, hot-dip galvanizing is a key process for improving the corrosion resistance and extending the service life of steel pipes, and it is widely used in industries such as building steel structures, municipal pipe networks, and machinery manufacturing. Currently, mainstream hot-dip galvanizing equipment in the industry still faces significant technical bottlenecks in the core heating process, hindering improvements in production efficiency and product quality. Traditional hot-dip galvanizing equipment often uses direct flame heating or overall furnace heating, or directly immerses the pipe in molten zinc for extended periods to complete the galvanizing process. Especially with immersion galvanizing, the time varies from 3 to 8 minutes depending on the type of steel pipe. Traditional heating methods are time-consuming, energy-intensive, and inefficient.

[0003] In particular, the technical defects of traditional heating blocks have further triggered a chain of problems in the overall process of the equipment: on the one hand, due to the low heating efficiency of heating blocks, traditional equipment has low requirements for the timeliness of steel pipe transportation, and generally adopts single-pipe pushing or simple conveyor belt transportation methods. The transportation components lack precise limiting structures, requiring frequent manual adjustment of positions. Each batch of transportation takes a long time, which is difficult to match with the subsequent heating process, forming a production bottleneck of "slow heating and even slower transportation", which cannot be adapted to mass production. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problems of slow heating leading to low galvanizing efficiency and uneven galvanizing in the above-mentioned prior art, the present invention is proposed.

[0006] Therefore, one object of the present invention is to provide a zinc pot apparatus for hot-dip galvanizing steel pipes.

[0007] To solve the aforementioned technical problem, the present invention provides the following technical solution: a heating component for rapidly hot-dip galvanizing steel pipes, wherein conveying components for batch conveying of steel pipes are symmetrically arranged at both ends of the heating component along its axis of symmetry, a placement rack for arraying steel pipes is slidably connected to the upper end of the conveying component, a galvanizing tank is arranged below the heating component, and a tensioning mechanism for lifting and lowering steel pipes is arranged at both ends of the galvanizing tank along its axis of symmetry.

[0008] In a preferred embodiment of the zinc pot device for hot-dip galvanizing steel pipes according to the present invention, the conveying component includes a support frame, a motor is provided on one side of the support frame, the surface of the motor is fixedly connected to the surface of the support leg of the support frame, a bevel gear set is provided at the output shaft end of the motor, one end of the output shaft of the motor is fixedly connected to one of the bevel teeth of the bevel gear set, rollers are arranged in an array along the axis of symmetry at the upper end of the support frame, wherein the opposing surfaces of two rollers located at opposite ends are fixedly connected by a connecting rod, the side of the other bevel tooth of the bevel gear set is fixedly connected to one end of a connecting rod passing through the roller, and a guide rod is fixedly connected to one end of the roller.

[0009] As a preferred embodiment of the zinc pot device for hot-dip galvanizing steel pipes according to the present invention, the placement frame includes ladder-shaped rods, wherein two of the ladder-shaped rods are symmetrically arranged with arc-shaped limiting rods on their surfaces, and the surfaces of the other two ladder-shaped rods are provided with grooves, the inner walls of the grooves being toothed.

[0010] In a preferred embodiment of the zinc pot device for hot-dip galvanizing steel pipes according to the present invention, the heating component includes a sealing shell, the inner wall of which is provided with an array of mounting grooves, the lower end of the sealing shell is fixedly connected to the upper end of the galvanizing tank, hydraulic rods are arranged at both ends of the sealing shell along the axis of symmetry, the lower end of the hydraulic rods is fixedly connected to the outer surface of the sealing shell through a triangular support block, the upper end of the hydraulic rods is fixedly connected to a sealing cover through a fixing rod, the surface of the sealing cover is slidably connected to the side of the sealing shell, and induction coils are arranged in an array on the inner wall of the sealing shell.

[0011] In a preferred embodiment of the zinc pot device for hot-dip galvanizing steel pipes according to the present invention, the upper end of the galvanizing tank is symmetrically provided with rotating holes, an electric turntable is fixedly connected to the outer wall of the galvanizing tank, a rotating rod is rotatably connected to the inner wall of the rotating hole through a bearing, the rotating part of the electric turntable is fixedly connected to one end of the rotating rod, the surface of the rotating rod is rotatably connected to the body of the sealing shell through a bearing, part of the rod body is located in the placement groove, a fixing ring is fixedly connected to the surface of the rotating rod, a second motor is fixedly connected to the inner wall of the fixing ring, a universal joint is fixedly connected to the output shaft of the second motor, a drive rod is fixedly connected to one end of the universal joint, a second universal joint is fixedly connected to one end of the drive rod, and an H-shaped fixing bracket is also fixedly fixed to the surface of the rotating rod.

[0012] In a preferred embodiment of the zinc pot device for hot-dip galvanizing steel pipes according to the present invention, the following features are provided: a bearing seat is fixedly connected to the upper end of the crossbar of the first fixed frame; the surface of the drive rod is fixedly connected to the rotating component of the bearing seat; a rotating base is rotatably connected to one end of the first fixed frame; a limit block is provided at the lower end of the first rotating base; both ends of the limit block are fixedly connected to the inner wall of the first fixed frame; a gear is rotatably connected to the upper end of the first rotating base via a bearing; one end of the second universal joint is rotatably connected to one side of the gear; the surface of the gear meshes with the toothed surface of the groove; an H-shaped second fixed frame is provided on one side of the first fixed frame; one end of the second fixed frame is fixedly connected to the surface of the rotating rod; a rotating base is rotatably connected to one end of the second fixed frame; a sliding component is fixedly connected to the upper end of the second rotating base; the upper end of the sliding component is configured as an arc-shaped groove adapted to the surface of the trapezoidal rod; and a lubricating layer is provided on the surface of the arc-shaped groove.

[0013] In a preferred embodiment of the zinc pot device for hot-dip galvanizing steel pipes described in this invention, the induction coil is made of hollow copper material connected to an external water pump.

[0014] In a preferred embodiment of the zinc pot device for hot-dip galvanizing steel pipes according to the present invention, the stretching mechanism includes three motors symmetrically arranged along the axis of symmetry of the galvanizing tank. Each output shaft of the three motors is provided with a bevel gear set two. A winding roller is fixedly connected to the center of one bevel gear of the bevel gear set two. The surface of the winding roller is provided with an array of bearing seats two. One end of the bearing seats two is fixedly connected to the outer surface of the galvanizing tank. A steel wire rope is wound on the surface of the winding roller. One end of the steel wire rope passes through the sealing shell and extends into the interior of the sealing shell. A fixed pulley is slidably connected to the surface of the steel wire rope. One end of the fixed pulley is fixedly connected to the inner wall of the steel wire groove opened in the inner wall of the galvanizing tank. The horizontal plane of the steel wire groove is cross-shaped. A support frame is slidably connected to the inner wall of the steel wire groove. The surface of the support frame is adapted to the outer surface of the ladder-shaped rod.

[0015] In a preferred embodiment of the zinc pot device for hot-dip galvanizing steel pipes described in this invention, the surface of the steel wire rope is evenly distributed with anti-slip textures, and the outer surface of the steel wire rope is covered with a high-temperature resistant and wear-resistant layer.

[0016] In a preferred embodiment of the zinc pot device for hot-dip galvanizing steel pipes according to the present invention, a liquid level sensor is fixedly connected to the bottom of the inner wall of the galvanizing tank, the signal output terminal of the liquid level sensor is electrically connected to the signal input terminal of an external control system, and an alarm indicator light linked to the liquid level sensor is provided on the outer wall of the galvanizing tank.

[0017] The zinc pot device for hot-dip galvanizing steel pipes of the present invention has the following advantages: The heating component adopts a combination structure of a sealed shell and an array of induction coils. The induction coils are made of hollow copper material with an external water pump, which can achieve rapid heating of the steel pipes through electromagnetic induction and ensure stable operation of the induction coils through water pump circulation cooling. At the same time, the design of the U-shaped heating coil solves the problems of slow heating and uneven galvanizing in traditional heating methods. Due to the improved heating efficiency of the heating block, the timeliness requirements for batch transportation of steel pipes are increased. The present invention uses a motor to drive a bevel gear assembly to drive the array rollers to rotate synchronously, and a guide rod to limit and guide the placement frame. The placement frame adopts a combination structure of a ladder-shaped rod and an arc-shaped limiting rod, which can stably and fixedly place multiple steel pipes in an array. The steel pipes enable batch and stable conveying that matches the efficient heating of the heating blocks, indirectly solving the problems of low efficiency and easy deviation of steel pipes in traditional conveying methods, and ensuring that the processing capacity of the heating blocks is fully utilized. The efficient heating keeps the entire device in a high-temperature condition. To prevent the steel wire rope from failing at high temperatures, the surface of the steel wire rope is evenly covered with anti-slip texture and coated with a high-temperature wear-resistant layer, which greatly improves the wear resistance in high-temperature environments and extends the service life. At the same time, the "+" shaped steel wire groove cooperates with the fixed pulley to accurately guide the lifting trajectory of the steel wire rope, ensuring the smooth lifting of the placement frame. This not only meets the need for timely transfer of steel pipes after the heating blocks are heated, but also solves the problems of easy wear and unstable lifting of steel wire ropes in traditional tensioning mechanisms, ensuring the safe connection of the entire process. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0019] Figure 1 This is a three-dimensional structural diagram of the hot-dip galvanizing zinc pot device of the present invention.

[0020] Figure 2 This is a three-dimensional structural diagram of the conveying component of the hot-dip galvanizing zinc pot device of the present invention.

[0021] Figure 3 This is a three-dimensional structural diagram of the arc-shaped limiting rod of the hot-dip galvanizing zinc pot device of the present invention.

[0022] Figure 4 This is a cross-sectional schematic diagram of the sealing shell of the zinc pot device for galvanizing according to the present invention.

[0023] Figure 5 The zinc pot apparatus for hot-dip galvanizing according to the present invention Figure 4 Enlarged diagram of point A in the middle.

[0024] Figure 6This is a schematic diagram showing the position of the electric turntable in the hot-dip galvanizing zinc pot device of the present invention.

[0025] Figure 7 The zinc pot apparatus for hot-dip galvanizing according to the present invention Figure 6 Enlarged diagram of point B in the middle.

[0026] Figure 8 This is a right-side view of the heating component of the hot-dip galvanized zinc pot device of the present invention.

[0027] Figure 9 The zinc pot apparatus for hot-dip galvanizing according to the present invention Figure 8 Enlarged diagram of point C in the middle.

[0028] Figure 10 This is a front view schematic diagram of the heating component of the hot-dip galvanized zinc pot device of the present invention.

[0029] Figure 11 This is a schematic diagram showing the position of the induction coil in the hot-dip galvanizing zinc pot device of the present invention.

[0030] Figure 12 The zinc pot apparatus for hot-dip galvanizing according to the present invention Figure 11 Enlarged diagram of point D in the middle.

[0031] Figure 13 This is a schematic diagram of the gear position in the hot-dip galvanizing zinc pot device of the present invention.

[0032] 1. Conveying component; 11. Support frame; 12. Motor 1; 13. Bevel gear set 1; 14. Roller; 15. Guide rod; 2. Placement rack; 21. Ladder-shaped rod; 22. Arc-shaped limiting rod; 23. Groove; 3. Steel pipe; 4. Heating component; 40. Placement slot; 41. Sealing shell; 42. Hydraulic rod; 43. Sealing cover; 44. Induction coil; 45. Electric turntable; 46. Rotating rod; 47. Fixing ring; 48. Motor 2; 49. 410. Universal joint 1; 411. Drive rod; 412. Fixed frame 1; 413. Bearing housing; 414. Universal joint 2; 415. Rotating base 1; 416. Gear; 417. Fixed frame 2; 418. Rotating base 2; 419. Sliding component; 5. Galvanizing tank; 60. Tensioning mechanism; 61. Motor 3; 62. Bevel gear set 2; 63. Bearing housing 2; 64. Winding roller; 65. Wire rope; 66. Fixed pulley; 67. Support frame. Detailed Implementation

[0033] To make the objectives, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0034] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0035] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0036] Reference Figures 1-13 This embodiment of the invention provides a zinc pot device for hot-dip galvanizing steel pipes, which includes: a heating component 4, conveying components 1 symmetrically arranged at both ends of the heating component 4 along its axis of symmetry, a placement rack 2 slidably connected to the upper end of the conveying component 1, steel pipes 3 arranged in an array at the upper end of the placement rack 2, a galvanizing tank 5 arranged below the heating component 4, and a tensioning mechanism 6 arranged at both ends of the galvanizing tank 5 along its axis of symmetry.

[0037] To enable the conveying component 1 to transport steel pipes 3 in batches, the conveying component 1 is provided, including a support frame 11. A motor 12 is provided on one side of the support frame 11, and the surface of the motor 12 is fixedly connected to the surface of the support leg of the support frame 11. A bevel gear set 13 is provided at the output shaft end of the motor 12, and one end of the output shaft of the motor 12 is fixedly connected to one of the bevel teeth of the bevel gear set 13. Rollers 14 are arranged in an array along the axis of symmetry at the upper end of the support frame 11. The opposing surfaces of two rollers 14 located at opposite ends are fixedly connected by a connecting rod. The side of the other bevel tooth of the bevel gear set 13 is fixedly connected to one end of the connecting rod that passes through the roller 14. A guide rod 15 is fixedly connected to one end of the roller 14.

[0038] Specifically, after the motor 12 starts, its output shaft drives the active bevel gear in the bevel gear group 13 to rotate, which in turn drives the meshing driven bevel gear to rotate synchronously. The driven bevel gear drives the two opposing rollers 14 at the end to rotate through the connecting rod. The bottom of the placement frame 2 contacts the surface of the rollers 14 and moves along the length of the support frame 11 under the action of the friction of the rollers 14. The guide rod 15 fits against both sides of the placement frame 2. This design guides the placement frame 2 when the pre-treated and cleaned steel pipe 3 and the placement frame 2 are lifted as a whole to the top of the conveying component 1, and accelerates the conveying of the placement frame 2 and steel pipe 3 by the conveying component 1.

[0039] The placement rack 2 includes ladder-shaped rods 21, wherein two ladder-shaped rods 21 are symmetrically arranged with arc-shaped limiting rods 22 on their surfaces, and the other two ladder-shaped rods 21 are provided with grooves 23 on their surfaces, and the inner walls of the grooves 23 are provided with toothed surfaces.

[0040] Specifically, the ladder-shaped rod 21 is welded from No. 45 steel to form a rectangular frame structure, which improves the overall load-bearing strength; the arc of the arc-shaped limiting rod 22 is adapted to the outer circle of the steel pipe 3 that needs to be galvanized, which can prevent the steel pipe 3 from rolling and avoid the steel pipes 3 from squeezing each other. Moreover, the contact area between the arc-shaped limiting rod 22 and the steel pipe 3 is relatively small, which greatly increases the galvanized area of ​​the steel pipe 3 and reduces the secondary processing time of the subsequent hot-dip galvanizing process; the toothed surface of the groove 23 is fully engaged with the tooth shape of the subsequent gear 415, ensuring that the placement rack 2 can stably transmit power during rotation and does not slip.To achieve rapid hot-dip galvanizing of the steel pipe 3 by the heating element 4, the heating element 4 is provided, including a sealing shell 41. The inner wall of the sealing shell 41 has arrayed mounting grooves 40. The lower end of the sealing shell 41 is fixedly connected to the upper end of the galvanizing tank 5. Hydraulic rods 42 are arranged along the axis of symmetry at both ends of the sealing shell 41. The lower end of the hydraulic rods 42 is fixedly connected to the outer surface of the sealing shell 41 via a triangular support block. A sealing cover 43 is fixedly connected to the upper end of the hydraulic rods 42 via a fixing rod. The surface of the sealing cover 43 is slidably connected to the side of the sealing shell 41. Induction coils 44 are arrayed on the inner wall of the sealing shell 41. Rotation holes are symmetrically arranged at the upper end of the galvanizing tank 5. An electric turntable 45 is fixedly connected to the outer wall of the galvanizing tank 5. A rotating rod 46 is rotatably connected to the inner wall of the rotating hole via bearings. The rotating part of the electric turntable 45 is fixedly connected to one end of the rotating rod 46. The surface of the rotating rod 46 is rotatably connected to the body of the sealing shell 41 via bearings. Part of the rod 46 is located inside the mounting groove 40. A fixing ring 47 is fixedly connected to the surface of the rotating rod 46. A second motor 48 is fixedly connected to the inner wall of the fixing ring 47. A first universal joint 49 is fixedly connected to the output shaft of the second motor 48. A drive rod 410 is fixedly connected to one end of the first universal joint 49. A second universal joint 413 is fixedly connected to one end of the drive rod 410. An H-shaped fixing bracket 411 is fixed to the surface of the rotating rod 46. A bearing seat 412 is fixedly connected to the upper end of the crossbar of the fixing bracket 411. The surface of the drive rod 410 is fixedly connected to the rotating part of the bearing seat 412. A rotating base 414 is rotatably connected to one end of the fixing bracket 411. A limit block is provided at the lower end of the rotating base 414. The two ends of the limit block are fixedly connected to the inner wall of the fixing bracket 411. The limit block only limits the lower part of the rotating base 414 and does not affect the rotation of the unlimited end of the rotating base 414. A gear 415 and a universal joint 413 are rotatably connected to the upper end of the rotating base 414 through a bearing. One end is rotatably connected to one side of the gear 415. The surface of the gear 415 meshes with the toothed surface of the groove 23. An H-shaped fixing bracket 416 is provided on one side of the fixing bracket 411. One end of the fixing bracket 416 is fixedly connected to the surface of the rotating rod 46. A rotating base 417 is rotatably connected to one end of the fixing bracket 416. The rotating base 417 supports the placement frame 2 in the same way as the rotating base 414. A sliding component 418 is fixedly connected to the upper end of the rotating base 417. The upper end of the sliding component 418 is set as an arc-shaped groove that matches the surface of the ladder-shaped rod 21. A lubricating layer is provided on the surface of the arc-shaped groove.

[0041] Specifically, the outer surface of the heating component 4 is coated with a high-temperature resistant, heat-insulating, and corrosion-resistant layer. The hydraulic rod 42 drives the sealing cover 43 to rise to its maximum height. The entire assembly of the placement rack 2 and the steel pipe 3 enters the sealing shell 41 under the combined drive of the aforementioned conveying component 1, motor 48, universal joint 49, drive rod 410, universal joint 413, and gear 415. After the steel pipe 3 has completely entered the sealing shell 41, the sealing cover 43 descends under the action of the hydraulic rod 42, forming a closed space inside the sealing shell 41. The copper induction coil 44 controls the current according to the model of the steel pipe 3, thereby maintaining the magnetic field. The strength-matched steel pipe 3 is further and quickly heated to a suitable galvanizing temperature of 450°C. The temperature sensor set on the inner wall of the sealing shell 41 detects that the temperature of the steel pipe 3 has reached the preset value. The induction coil 44 continues to heat the steel pipe 3. At the same time, the electric turntable 45 drives the rotating rod 46 to rotate through its rotating component. The rotating rod 46 drives the fixed frame 411 to descend until the long rod of the ladder-shaped rod 21 is completely placed on the support frame 67. The electric turntable 45 continues to rotate until the gear 415 is located in the placement groove 40 to prevent zinc liquid from splashing onto electronic equipment such as the motor 48 during galvanizing.

[0042] The induction coil 44 is made of hollow copper material used in external water pumps.

[0043] Specifically, the hollow copper tube of the induction coil 44 is made of pure copper, which ensures good electrical and thermal conductivity. An external water pump is connected to both ends of the hollow copper tube through a pipe to form a cooling water circulation system. When the induction coil 44 is working, cooling water continuously flows through the inside of the copper tube, keeping the temperature of the induction coil 44 below 80°C, preventing the coil from aging and being damaged due to high temperature, and extending its service life.

[0044] To achieve the lifting and lowering action of the tensioning mechanism 6 on the steel pipe 3, the tensioning mechanism 6 is set up, including motor three 61 symmetrically arranged along the axis of symmetry of the galvanizing tank 5. Each motor three 61 has a bevel gear set two 62 at the output shaft end. A take-up roller 64 is fixedly connected to the center of one bevel gear of the bevel gear set two 62. The surface of the take-up roller 64 is arranged with bearing seats two 63. One end of the bearing seats two 63 is fixedly connected to the outer surface of the galvanizing tank 5. A steel wire rope 65 is wound on the surface of the take-up roller 64. One end of the steel wire rope 65 passes through the sealing shell 41 and extends into the interior of the sealing shell 41. A fixed pulley 66 is slidably connected to the surface of the steel wire rope 65. One end of the fixed pulley 66 is fixedly connected to the inner wall of the steel wire groove opened in the inner wall of the galvanizing tank 5. The horizontal plane of the steel wire groove is in the shape of a cross. A support frame 67 is slidably connected to the inner wall of the steel wire groove. The surface of the support frame 67 is adapted to the outer surface of the ladder-shaped rod 21.

[0045] Specifically, when the ladder-shaped rod 21 is placed on the support frame 67, the motor 3 61 starts, and its output shaft drives the bevel gear set 2 62 to rotate, which in turn drives the take-up roller 64 to rotate and release the wire rope 65. Under the guidance of the fixed pulley 66, the wire rope 65 drives the support frame 67 to descend smoothly along the "+" shaped wire groove. As it continues to descend, it sends the placement frame 2 and the steel pipe 3 into the zinc liquid in the galvanizing tank 5. The soaking time is set according to the diameter of the steel pipe 3. For example, for steel pipes with a diameter ≤ 50mm, the soaking time is 3~4 minutes.

[0046] For steel pipes with a diameter of 50mm to 100mm, soaking time is 5-6 minutes.

[0047] For steel pipes with a diameter greater than 100mm, soaking time is 7-8 minutes;

[0048] After galvanizing, motor 3 61 reverses, and winding roller 64 winds up wire rope 65, driving support frame 67 and placement frame 2 to rise to the initial position, completing the galvanizing process. During the galvanizing process, the current of induction coil 44 stops, and electric turntable 45 drives rotating rod 46 to rotate. Rotating rod 46 drives fixed frame 1 411 and fixed frame 2 416 to rotate closer to placement frame 2 until the curved surface of sliding component 418 and gear 415 mesh with the toothed surface of groove 23. Under the rotation of electric turntable 45, placement frame 2 returns to the initial height of entering sealing shell 41. At the same time, hydraulic rod 42 at the other end (i.e., the outlet end) drives sealing cover 43 to open. Driven by motor 2 48, gear 415 rotates, driving placement frame 2 to move out of the sealing shell 41.

[0049] The surface of the wire rope 65 is evenly covered with anti-slip textures, and the outer surface of the wire rope 65 is covered with a high-temperature resistant and wear-resistant layer.

[0050] Specifically, the wire rope 65 is made of 65# carbon steel with a breaking tensile strength ≥50kN. The surface anti-slip texture is 0.5mm deep and 2mm apart, which increases the friction with the winding roller 64 and prevents slippage during winding. The high-temperature and wear-resistant outer coating is made of polyimide with a thickness of 0.8mm and a temperature range of -200℃ to 500℃. In the high-temperature environment of the galvanizing tank 5, it can effectively extend the service life of the wire rope 65.

[0051] A liquid level sensor is fixedly connected to the bottom of the inner wall of the galvanizing tank 5. The signal output terminal of the liquid level sensor is electrically connected to the signal input terminal of the external control system. An alarm indicator light that is linked to the liquid level sensor is installed on the outer wall of the galvanizing tank 5.

[0052] Specifically, the liquid level sensor adopts an immersion hydrostatic level gauge with a measurement range of 0-500mm, an accuracy of ±1mm, and a response time of 1 second. Its probe is installed at the center of the bottom of the inner wall of the galvanizing tank 5 to monitor the zinc liquid level in real time. When the zinc liquid level is lower than the set value, the liquid level sensor sends a signal to the external PLC control system. The control system triggers the red alarm indicator light on the outer wall of the galvanizing tank 5 to flash, and at the same time displays a zinc liquid shortage warning on the operation panel to remind the operator to replenish zinc ingots in time to avoid incomplete galvanizing of steel pipe 3 due to insufficient zinc liquid.

[0053] Working principle:

[0054] Before galvanizing, the steel pipe 3 and the placement rack 2 are lifted to a position directly above the conveying component 1 using external lifting equipment. The lifting equipment then slowly lowers the placement rack 2 until its edge touches the surface of the guide rod 15, allowing it to slide down onto the roller 14. Simultaneously, the hydraulic rod 42, which is close to the placement rack 2, raises the sealing cover 43 to its maximum height. Motor 12 drives the bevel gear assembly 13 to rotate, which in turn drives the roller 14 to rotate via a connecting rod. When one end of the placement rack 2 and the steel pipe 3 enters the interior of the sealing shell 41 and contacts the surface of the sliding component 418, motor 2 48 begins operation. Universal joint 49, drive rod 410 and universal joint 413 drive gear 415 to rotate. Gear 415 drives placement frame 2 to move along the length of sealing shell 41 until placement frame 2 and steel pipe 3 are completely placed inside sealing shell 41. Conveying component 1 stops working. Hydraulic rod 42 drives sealing cover 43 to descend and return to the initial state. Induction coil 44 starts to be energized according to the model of steel pipe 3 and external water source is introduced to make it quickly reach rated power. Steel pipe 3 heats up rapidly under the action of magnetic field. Temperature sensor set on the inner wall of sealing shell 41 detects that the temperature of steel pipe 3 has reached 450°C. Induction coil 44 stops supplying power.

[0055] The electric turntable 45 drives the rotating rod 46 to rotate, which in turn drives the sliding part 418 and the gear 415 to descend. Under the action of the placement frame 2, both of them remain horizontal as they descend until the surface of the placement frame 2 contacts the support frame 67. The support frame 67 then supports the placement frame 2. The electric turntable 45 continues to drive the rotating rod 46 to rotate until the gear 415 enters the placement groove 40.

[0056] Motor 3 61 drives bevel gear set 2 62 to work, which in turn drives take-up roller 64 to rotate and release wire rope 65. Under the guidance of fixed pulley 66, wire rope 65 drives support frame 67 to descend smoothly along the "+" shaped wire groove. As it continues to descend, it sends placement frame 2 and steel pipe 3 into the zinc liquid in galvanizing tank 5. According to the preset time, after steel pipe 3 is soaked, motor 3 61 reverses, take-up roller 64 winds up wire rope 65, and drives support frame 67 and placement frame 2 to rise to the initial position, completing the galvanizing process.

[0057] The electric turntable 45 drives the rotating rod 46 to rotate in the opposite direction. The rotating rod 46 drives the first fixed frame 411 and the second fixed frame 416 to rotate and approach the placement frame 2 until the curved surface of the sliding part 418 and the gear 415 mesh with the toothed surface of the groove 23. Under the rotation of the electric turntable 45, the placement frame 2 returns to the initial height of entering the sealing shell 41. At the same time, the hydraulic rod 42 at the other end (i.e. the outlet end) drives the sealing cover 43 to open. Under the drive of the second motor 48, the gear 415 rotates, driving the placement frame 2 to move out of the sealing shell 41. Thus, the initial hot-dip galvanizing work of the single batch of steel pipes 3 is completed.

[0058] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0059] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the invention as currently considered, or those features that are not relevant to implementing the invention) may be omitted.

[0060] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0061] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A galvanizing pot apparatus for hot dip galvanizing steel pipe, characterized by: The application relates to a heating component (4) for rapid hot galvanizing of steel pipes (3), two ends of the heating component (4) are symmetrically provided with conveying components (1) for batch conveying of the steel pipes (3) along the symmetry axis of the heating component (4), the upper end of the conveying component (1) is slidingly connected with a placing rack (2) for array placing of the steel pipes (3), a galvanizing tank (5) is arranged below the heating component (4), and stretching mechanisms (6) for lifting and lowering the steel pipes (3) are arranged at the two ends of the galvanizing tank (5) along the symmetry axis.

2. A galvanizing pot apparatus for hot dip galvanizing steel pipe as set forth in claim 1, characterized in that: The conveying component (1) comprises a support rack (11), one side of the support rack (11) is provided with a motor (12), the surface of the motor (12) is fixedly connected with the support leg surface of the support rack (11), the output shaft end of the motor (12) is provided with a bevel gear set (13), the output shaft end of the motor (12) is fixedly connected with one bevel gear of the bevel gear set (13), the upper end of the support rack (11) is arrayed with rollers (14) along the symmetry axis, the opposite surfaces of two rollers (14) located at the opposite ends are fixedly connected through connecting rods, the side surface of the other bevel gear of the bevel gear set (13) is fixedly connected with one end of the connecting rod penetrating through the roller (14), and one end of the roller (14) is fixedly connected with a guide rod (15).

3. A galvanizing kettle for hot dip galvanizing steel pipe as defined in claim 1 wherein: The placing rack (2) comprises ladder-shaped rods (21), the surfaces of two ladder-shaped rods (21) are symmetrically arrayed with arc-shaped limiting rods (22), the surfaces of the other two ladder-shaped rods (21) are provided with grooves (23), and the inner walls of the grooves (23) are provided as toothed surfaces.

4. A galvanizing pot apparatus for hot dip galvanizing steel pipe as set forth in claim 3 wherein: The heating component (4) comprises a sealing shell (41), the inner wall of the sealing shell (41) is arrayed with accommodating grooves (40), the lower end of the sealing shell (41) is fixedly connected with the upper end of the galvanizing tank (5), the two ends of the sealing shell (41) are provided with hydraulic rods (42) along the symmetry axis, the lower end of the hydraulic rod (42) is fixedly connected with the outer surface of the sealing shell (41) through a triangular supporting block, the upper end of the hydraulic rod (42) is fixedly connected with a sealing cover (43) through a fixing rod, the surface of the sealing cover (43) is slidingly connected with the side surface of the sealing shell (41), and the inner wall of the sealing shell (41) is arrayed with induction coils (44).

5. A galvanizing pot apparatus for hot dip galvanizing steel pipe as defined in claim 4 wherein: The upper end of the galvanizing tank (5) is symmetrically provided with a rotating hole, the outer wall of the galvanizing tank (5) is fixedly connected with an electric rotating disc (45), the inner wall of the rotating hole is rotatably connected with a rotating rod (46) through a bearing, the rotating part of the electric rotating disc (45) is fixedly connected with one end of the rotating rod (46), the surface of the rotating rod (46) is rotatably connected with the body of the sealing shell (41) through a bearing, part of the rod body of the rotating rod (46) is located in the accommodating groove (40), the surface of the rotating rod (46) is fixedly connected with a fixed ring (47), the inner wall of the fixed ring (47) is fixedly connected with a motor two (48), the output shaft of the motor two (48) is fixedly connected with a universal joint one (49), one end of the universal joint one (49) is fixedly connected with a driving rod (410), one end of the driving rod (410) is fixedly connected with a universal joint two (413), the surface of the rotating rod (46) is further fixed with a H-shaped fixed frame one (411).

6. A galvanizing pot apparatus for hot dip galvanizing steel pipe as defined in claim 5 wherein: The upper end of the cross rod of the fixed frame one (411) is fixedly connected with a bearing seat (412), the surface of the driving rod (410) is fixedly connected with the rotating part of the bearing seat (412), one end of the fixed frame one (411) is rotatably connected with a rotating base one (414), the lower end of the rotating base one (414) is provided with a limiting block, the two ends of the limiting block are fixedly connected with the inner wall of the fixed frame one (411), the upper end of the rotating base one (414) is rotatably connected with a gear (415) through a bearing, one end of the universal joint two (413) is rotatably connected with one side of the gear (415), the surface of the gear (415) is meshed with the toothed surface of the groove (23), one side of the fixed frame one (411) is provided with a H-shaped fixed frame two (416), one end of the fixed frame two (416) is fixedly connected with the surface of the rotating rod (46), one end of the fixed frame two (416) is rotatably connected with a rotating base two (417), the upper end of the rotating base two (417) is fixedly connected with a sliding part (418), the upper end of the sliding part (418) is provided as an arc-shaped groove matched with the surface of the ladder-shaped rod (21), the surface of the arc-shaped groove is provided with a lubricating layer.

7. A galvanizing pot apparatus for hot dip galvanizing steel pipe as defined in claim 4 wherein: The inductive coil (44) adopts a hollow red copper material connected with a water pump.

8. A galvanizing pot apparatus for hot dip galvanizing steel pipe as set forth in claim 4 wherein: The stretching mechanism (6) includes motor three (61) which is symmetrically arranged along the symmetrical axis of the galvanizing tank (5), the output shaft end of each motor three (61) is provided with a bevel gear set two (62), one of the bevel gear shafts of the bevel gear set two (62) is fixedly connected with a winding roller (64), the surface of the winding roller (64) is arranged with a bearing seat two (63), one end of the bearing seat two (63) is fixedly connected with the outer surface of the galvanizing tank (5), the surface of the winding roller (64) is wound with a steel wire rope (65), one end of the steel wire rope (65) penetrates through the sealing shell (41) and extends to the inside of the sealing shell (41), the surface of the steel wire rope (65) is slidably connected with a fixed pulley (66), one end of the fixed pulley (66) is fixedly connected with the inner wall of the steel wire groove which is opened in the inner wall of the galvanizing tank (5), the horizontal plane of the steel wire groove is in the shape of "ten", the inner wall of the steel wire groove is slidably connected with a support frame (67), the surface of the support frame (67) is provided to be matched with the outer surface of the ladder-shaped rod (21).

9. A galvanizing pot apparatus for hot dip galvanizing steel pipe as defined in claim 8 wherein: The surface of the steel wire rope (65) is uniformly provided with anti-skid lines, and the outer surface of the steel wire rope (65) is covered with a high-temperature-resistant and wear-resistant layer.

10. A galvanizing installation for hot dip galvanizing steel pipes as claimed in any one of claims 1 to 9, characterized in that: The inner wall bottom of the galvanizing tank (5) is fixedly connected with a liquid level sensor, the signal output end of the liquid level sensor is electrically connected with the signal input end of an external control system, and the outer wall of the galvanizing tank (5) is provided with an alarm indicator lamp which is linked with the liquid level sensor.

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