A hot-dip galvanizing work heating device

Abstract

The application discloses a hot-dip galvanizing workpiece heating device and relates to the related technical field of hot-dip galvanizing workpiece heating. The device comprises a support frame, an inside of the support frame is provided with a plating aid pool matched with the support frame, the top of the support frame is provided with symmetrical synchronous motors, the outer wall of the synchronous motor is provided with a protective cover matched with the synchronous motor, one side of the protective cover is provided with a fixed clamping block, and the fixed clamping block is arranged on the top of the support frame. The hot-dip galvanizing workpiece heating device drives the ball screw to rotate through the operation of the synchronous motor, drives the ball sleeve to move linearly, and drives the cleaning scraper to move at a constant speed to scrape the iron slag at the bottom of the coating pool, so that the accumulation of the iron slag can be prevented from affecting the quality of zinc immersion, the viscosity of the plating aid is reduced, the fluidity of the plating aid is improved, the magnetic filter screen is used to adsorb the iron slag and ferromagnetic impurities through magnetic force, the finer iron slag particles in the plating aid pool can be intercepted, and the iron slag in the plating aid pool is scraped to the specified area by the cleaning scraper.

Description

Technical Field

[0001] This invention relates to the technical field of hot-dip galvanized workpiece heating, specifically to a hot-dip galvanized workpiece heating device. Background Technology

[0002] Before hot-dip galvanizing, the workpiece needs to be placed in a fluxing bath for fluxing, and the hot-dip galvanizing solution needs to be heated to a suitable temperature to increase the temperature of the workpiece, thereby reducing the temperature difference between the workpiece and the hot zinc solution during hot-dip galvanizing.

[0003] In the prior art, such as Chinese Patent No. CN220579361U, a hot-dip galvanizing flux bath includes a flux bath and a drain valve fixedly connected to the back of the flux bath. A circulation device is arranged on the right side of the flux bath, and a heating device is arranged on the right side of the circulation device. The circulation device includes a hot water tank, a heat-resistant self-priming pump, a control valve, a heat exchange pipe, and an outlet pipe. In this hot-dip galvanizing flux bath, the heat-resistant self-priming pump draws water from the hot water tank and then discharges the water into the heat exchange pipe. The heat exchange pipe is an S-shaped bend, which allows the circulating hot water to have a long travel distance within the flux bath, thereby fully heating the liquid inside the flux bath.

[0004] However, in the existing technology, residue will be generated at the bottom of the fluxing tank during use, which cannot prevent its accumulation, thereby increasing the viscosity of the fluxing agent and reducing its fluidity. Furthermore, when the fluxing solution reaches the usage standard and becomes wastewater, it cannot cause the metal ions in the wastewater inside the fluxing tank to precipitate, nor can it adsorb and filter the surfactants, greases and other pollutants in the water, so as to make the wastewater meet the discharge standards or reuse requirements. Therefore, there is an urgent need for a heating device for hot-dip galvanized workpieces. Summary of the Invention

[0005] The purpose of this invention is to provide a heating device for hot-dip galvanized workpieces, in order to solve the problems mentioned in the background art, which are that residues are generated at the bottom of the fluxing tank during use, which cannot be prevented from accumulating, thereby increasing the viscosity of the flux and reducing its fluidity. Furthermore, when the fluxing solution reaches the usage standard and becomes wastewater, it cannot cause the metal ions in the wastewater inside the fluxing tank to precipitate, nor can it adsorb and filter the surfactants, greases and other pollutants in the water, thereby preventing the wastewater from meeting the discharge standards or the requirements for reuse.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a hot-dip galvanized workpiece heating device, comprising a support frame, wherein a matching fluxing bath is disposed inside the support frame, the fluxing bath is connected and fixed to the support frame by a matching connecting groove, a symmetrically distributed synchronous motor is disposed on the top of the support frame, a matching protective cover is disposed on the outer wall of the synchronous motor, the protective cover is connected and fixed to the support frame by a first bolt, a fixing block is disposed on one side of the protective cover, the fixing block is disposed on the top of the support frame, the two ends of a matching protective tube are respectively connected to the opposite side of the protective cover and the fixing block, the protective tube is connected and fixed to the protective cover and the fixing block by a second bolt, a matching ball screw is disposed inside the protective tube, the output shaft of the synchronous motor is connected and fixed to one end of the ball screw by a coupling, and the other end of the ball screw is connected and fixed to the fixing block by a bearing.

[0007] Preferably, the other end of the ball screw is connected and fixed to a fixed block via a bearing. The outer wall of the ball screw is slidably connected to the inner wall of a matching ball sleeve. The outer wall of the ball sleeve is connected to the inner wall of one end of a matching movable bracket. Each of the two movable brackets has a matching slide rail on one side. The slide rail is slidably connected to a matching slider. The top of the two movable brackets is connected to the bottom of a support plate. An electric winch is installed on the top of the support plate. The electric winch is connected and fixed to the support plate via a third bolt. The inner wall of the plating bath is equipped with a matching cleaning scraper. The cleaning scraper is connected and fixed to the slider via a knob.

[0008] Preferably, the wire rope of the electric winch is connected and fixed to the cleaning scraper via a lifting ring on the supporting cross plate. Magnetic filters are provided on the inner sides of both ends of the cleaning scraper, and these magnetic filters are connected and fixed to the cleaning scraper via threaded rods. A drain pipe is provided on one side of the bottom of the plating bath, and the plating bath is connected to the inlet of a first water pump via a drain valve on the drain pipe. The water pump is located on one side of the supporting frame, and one end of a matching water guide pipe is connected to the outlet of the first water pump. The other end of the water guide pipe is connected to one side of a water storage tank, and the water storage tank is connected and fixed to the first water pump via the water guide pipe.

[0009] Preferably, the top of the water storage tank has a dispensing port, and a matching fixing plate is provided above the dispensing port. The fixing plate is connected and fixed to the top of the water storage tank by a fourth bolt. The interior of the water storage tank is provided with a matching spiral rod. A drive motor is provided on the top of the fixing plate. The output shaft of the drive motor is connected and fixed to the spiral rod by a coupling provided on the fixing plate. A water outlet pipe is provided on the other side of the water storage tank. The water storage tank is connected to the inlet of the second water pump through a drain valve provided on the water outlet pipe.

[0010] Preferably, a filter bucket is provided above the second water pump, and a filter tube adapted to it is provided inside the filter bucket. The filter bucket is connected and fixed to the second water pump through the filter tube. Activated carbon adapted to it is connected to the top outer wall of the filter tube. The activated carbon is connected and fixed to the filter tube by a fastening nut. A pressure cover adapted to it is provided on the top of the filter bucket. The pressure cover is connected and fixed by a pressure bolt and a movable locking block. A pressure gauge is provided on the top of the pressure cover.

[0011] Preferably, a temperature sensor is uniformly distributed below the plating bath, and a number of support rods are provided on the bottom inner wall of the support frame. A first electric heating tube adapted to the support rod is provided on the opposite side of the support rod. The first electric heating tube is connected and fixed to the support rod by a fixing ring and a fixing bolt adapted to the support rod.

[0012] Preferably, a second electric heating tube adapted to the plating bath is provided below the plating bath. The second electric heating tube is connected and fixed to the support frame by a support retaining ring and a fifth bolt adapted to the support. A heat insulation board adapted to the support frame is provided on the outside of the first electric heating tube.

[0013] Preferably, the heat insulation board is connected and fixed to the support frame by setting an installation slot, and a control box is provided on one side of the support frame. The control box is connected and fixed to the support frame by setting an L-shaped bracket.

[0014] Preferably, the control box is equipped with a display screen adapted to it, and a start button is provided below the display screen.

[0015] Preferably, the start button has symmetrically distributed control buttons on one side.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. This hot-dip galvanizing workpiece heating device uses a synchronous motor to drive a ball screw, causing the ball sleeve to move linearly and move a cleaning scraper at a uniform speed to scrape away iron slag from the bottom of the plating tank. This prevents slag buildup from affecting the quality of the galvanizing process and reduces the viscosity of the flux, improving its fluidity. Combined with a magnetic filter, it uses magnetic force to attract iron slag and ferromagnetic impurities, intercepting even finer iron slag particles inside the plating tank. Once the cleaning scraper has scraped the iron slag from the plating tank to a designated area, an electric winch connected to a lifting ring moves the cleaning scraper, along with a slider and rail, upwards for automatic retrieval. This improves retrieval efficiency, optimizes the iron slag cleaning process, and thus enhances the overall performance. For galvanizing quality and production efficiency, after the iron slag is dredged, the dirt and iron slag impurities inside the scraper and filter screen need to be cleaned manually to ensure normal operation. The motor and lead screw are protected by protective covers and protective pipes to prevent liquid splashing in the fluxing tank and avoid the accumulation of liquid or dust affecting normal operation. When the fluxing solution reaches the usage standard and becomes wastewater, the drain valve of the fluxing tank is opened, and the first water pump is used to pump the wastewater into the storage tank. The drive motor drives the screw to rotate and stir evenly. Zinc hydroxide and ammonia are added through the inlet to adjust the pH value to 3.0-5.5, which can cause the metal ions in the wastewater to precipitate.

[0018] 2. This hot-dip galvanizing workpiece heating device uses a second water pump to easily draw neutralized and settled wastewater from the storage tank into a filter tank. The filter, in conjunction with activated carbon, adsorbs surfactants, greases, and other pollutants from the wastewater, ensuring it meets discharge standards or reuse requirements. Pressure gauge readings indicate whether the filter tank is functioning correctly. The rational arrangement of the first heating element around the plating bath and the second heating element at the bottom helps to evenly raise the temperature of the plating solution, preventing localized overheating or underheating, reducing thermal stress damage to the plating bath, and rapidly heating the plating solution to the process temperature, reducing waiting time and improving production line efficiency. The overall efficiency, combined with the heat insulation board, effectively prevents heat transfer, reduces temperature fluctuations, and allows more heat generated by the heating element to be utilized, improving energy efficiency. It can significantly reduce the load on the heating element, thereby saving energy costs. The temperature sensor monitors the temperature data of the fluxing solution in real time, ensuring that the temperature of the fluxing solution is within the set range, avoiding excessively high or low temperatures, and improving the stability of the zinc coating quality. The display screen, along with the start and control buttons, can display the temperature parameters of the fluxing tank in real time, helping operators to keep abreast of the tank conditions and make adjustments as needed, ensuring process stability and product quality. Attached Figure Description

[0019] Figure 1 This is a left-side perspective view of a heating device for hot-dip galvanized workpieces according to one embodiment of the present invention.

[0020] Figure 2 This is a three-dimensional structural diagram of the heat-conducting assembly of a hot-dip galvanized workpiece heating device according to one embodiment of the present invention;

[0021] Figure 3 This is a three-dimensional structural diagram of the fluxing tank of a hot-dip galvanizing workpiece heating device according to one embodiment of the present invention;

[0022] Figure 4 This is a cross-sectional perspective view of the water tank of a hot-dip galvanized workpiece heating device according to one embodiment of the present invention.

[0023] Figure 5 This is a three-dimensional cross-sectional view of the filter barrel of a hot-dip galvanized workpiece heating device according to one embodiment of the present invention.

[0024] Figure 6 This is a three-dimensional structural diagram of the filter mechanism of a hot-dip galvanized workpiece heating device according to one embodiment of the present invention;

[0025] Figure 7 This is a three-dimensional structural diagram of a synchronous motor in a hot-dip galvanized workpiece heating device according to one embodiment of the present invention;

[0026] Figure 8 This is a three-dimensional structural diagram of an electric winch for a hot-dip galvanized workpiece heating device according to one embodiment of the present invention;

[0027] Figure 9 This is a three-dimensional structural diagram of a cleaning scraper for a hot-dip galvanized workpiece heating device according to one embodiment of the present invention;

[0028] Figure 10 This is a rear three-dimensional view of a hot-dip galvanized workpiece heating device according to one embodiment of the present invention.

[0029] In the diagram: 1. Support frame; 2. Auxiliary plating tank; 3. Connecting slot; 4. Synchronous motor; 5. Protective cover; 6. First bolt; 7. Fixing block; 8. Protective pipe; 9. Second bolt; 10. Ball screw; 11. Bearing; 12. Ball sleeve; 13. Movable bracket; 14. Slide rail; 15. Slider; 16. Support plate; 17. Electric winch; 18. Third bolt; 19. Scraper; 20. Knob; 21. Lifting ring; 22. Magnetic filter; 23. Drain pipe; 24. Drain valve; 25. First water pump; 26. Water guide pipe; 27. Water storage tank; 28. Discharge port; 29. ​​Fixing plate; 30. Fourth bolt. 31. Bolt; 32. Helical rod; 33. Drive motor; 34. Water outlet pipe; 35. Second water pump; 36. Filter canister; 37. Filter tube; 38. Activated carbon; 39. Fastening nut; 40. Pressure cap; 41. Pressure bolt; 42. Movable locking block; 43. Pressure gauge; 44. Temperature sensor; 45. Support rod; 46. First heating element; 47. Fixing ring; 48. Fixing bolt; 49. Second heating element; 50. Supporting ring; 51. Fifth bolt; 52. Heat insulation board; 53. Mounting slot; 54. Control box; 55. L-shaped bracket; 56. Display screen; 57. Start button; 58. Control button. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figures 1-10This invention provides a technical solution: a heating device for hot-dip galvanized workpieces, comprising a support frame 1, an auxiliary plating tank 2 adapted to the support frame 1, the auxiliary plating tank 2 being connected and fixed to the support frame 1 by a matching connecting slot 3, a symmetrically distributed synchronous motor 4 being arranged on the top of the support frame 1, a matching protective cover 5 being arranged on the outer wall of the synchronous motor 4, the protective cover 5 being connected and fixed to the support frame 1 by a first bolt 6, a fixing block 7 being arranged on one side of the protective cover 5, the fixing block 7 being arranged on the top of the support frame 1, and the two ends of a matching protective tube 8 being respectively connected to the opposite side of the protective cover 5 and the fixing block 7, the protective tube 8 being connected to the support frame 1 by a second bolt 9. The protective cover 5 is fixedly connected to the fixing block 7. A matching ball screw 10 is installed inside the protective tube 8. The output shaft of the synchronous motor 4 is fixedly connected to one end of the ball screw 10 via a coupling. The other end of the ball screw 10 is fixedly connected to the fixing block 7 via a bearing 11. The outer wall of the ball screw 10 is slidably connected to the inner wall of a matching ball sleeve 12. The outer wall of the ball sleeve 12 is connected to the inner wall of one end of a matching movable bracket 13. Each of the two movable brackets 13 has a matching slide rail 14 on one side. The slide rail 14 is slidably connected to a matching slider 15. The top of the two movable brackets 13 is connected to the bottom of a supporting horizontal plate 16, providing support. An electric winch 17 is installed at the top of the horizontal plate 16. The electric winch 17 is connected and fixed to the supporting horizontal plate 16 by a third bolt 18. A cleaning scraper 19 is installed on the inner wall of the auxiliary plating tank 2. The cleaning scraper 19 is connected and fixed to the slider 15 by a knob 20. The wire rope of the electric winch 17 is connected and fixed to the cleaning scraper 19 by a lifting ring 21 installed on the supporting horizontal plate 16. Magnetic filters 22 are installed on the inner sides of both ends of the cleaning scraper 19. The magnetic filters 22 are connected and fixed to the cleaning scraper 19 by threaded rods. A drain pipe 23 is installed on one side of the bottom of the auxiliary plating tank 2. The auxiliary plating tank 2 is connected to the inlet of the first water pump 25 through the drain valve 24 installed on the drain pipe 23. The water pump is installed on one side of the support frame 1. The outlet of the first water pump 25 is connected to one end of a matching water guide pipe 26. The other end of the water guide pipe 26 is connected to one side of the water storage tank 27. The water storage tank 27 is connected and fixed to the first water pump 25 by the water guide pipe 26. The top of the water storage tank 27 has a discharge port 28. Above the discharge port 28 is a matching fixing plate 29. The fixing plate 29 is connected and fixed to the top of the water storage tank 27 by a fourth bolt 30. The inside of the water storage tank 27 is a matching screw rod 31. The top of the fixing plate 29 is a drive motor 32. The output shaft of the drive motor 32 is connected and fixed to the screw rod 31 by a coupling set in the fixing plate 29.

[0032] Specifically, the synchronous motor 4 drives the ball screw 10 to rotate, causing the ball sleeve 12 to move linearly and move the cleaning scraper 19 at a uniform speed to scrape the iron slag from the bottom of the plating tank. This prevents the slag from accumulating and affecting the quality of zinc plating, and reduces the viscosity of the flux, improving its fluidity. Combined with the magnetic filter 22, which uses magnetic force to attract iron slag and ferromagnetic impurities, it can intercept even finer iron slag particles inside the plating tank 2. When the cleaning scraper 19 scrapes the iron slag from the plating tank 2 to a designated area, the electric winch 17, connected to the lifting ring 21, moves the cleaning scraper 19 upwards along with the slider 15 and slide rail 14, automatically retrieving the slag. This improves retrieval efficiency, optimizes the iron slag cleaning process, and thus improves the plating performance. To ensure zinc quality and production efficiency, after the iron slag is removed, the dirt and iron slag impurities inside the scraper and filter screen need to be manually cleaned to ensure normal operation. The motor and lead screw are protected by the protective cover 5 and the protective pipe 8 to prevent the liquid splashing in the fluxing tank 2 and avoid the accumulation of liquid or dust affecting its normal operation. When the fluxing solution reaches the usage standard and becomes wastewater, the drain valve 24 is opened through the fluxing tank 2, and the first water pump 25 is used to pump the wastewater into the storage tank 27. The drive motor 32 drives the screw rod 31 to rotate and stir evenly. Zinc hydroxide and ammonia water are added through the inlet 28 to adjust the pH value to 3.0-5.5, which can cause the metal ions in the wastewater to precipitate.

[0033] To facilitate a thorough understanding of the specific structure and principle of the detection opening and closing mechanism 400 by those skilled in the art, further explanation of the detection opening and closing mechanism 400 is provided. In this embodiment, a water outlet pipe 33 is provided on the other side of the water storage tank 27. The water storage tank 27 is connected to the inlet of the second water pump 34 via a drain valve 24 provided on the water outlet pipe 33. A filter bucket 35 is provided above the second water pump 34. A filter tube 36 adapted to the filter bucket 35 is provided inside the filter bucket 35. The filter bucket 35 is connected and fixed to the second water pump 34 via the filter tube 36. Activated carbon 37 adapted to the filter tube 36 is connected to the top outer wall of the filter tube 36. The activated carbon 37 is connected and fixed to the filter tube 36 via a fastening nut 38. A pressure cover 39 adapted to the filter bucket 35 is provided on the top. The pressure cover 39 is connected and fixed via a pressure bolt 40 and a movable locking block 41. A pressure gauge 42 is provided on the top of the pressure cover 39. Temperature sensors 43 are evenly distributed below the plating bath 2. Several support rods 44 are provided on the bottom inner wall of the support frame 1. A first heating element 45 is provided on one side, and the first heating element 45 is connected and fixed to several support rods 44 by a fixing ring 46 and a fixing bolt 47. A second heating element 48 is provided below the plating bath 2, and the second heating element 48 is connected and fixed to the support frame 1 by a support ring 49 and a fifth bolt 50. A heat insulation board 51 is provided on the outside of the first heating element 45, and the heat insulation board 51 is connected and fixed to the support frame 1 by a mounting slot 52. A control box 53 is provided on one side of the support frame 1, and the control box 53 is connected and fixed to the support frame 1 by an L-shaped bracket 54. A display screen 55 is provided inside the control box 53, and a start button 56 is provided below the display screen 55. A set of symmetrically distributed control buttons 57 are provided on one side of the start button 56.

[0034] Specifically, the second water pump 34 facilitates the extraction of neutralized and settled wastewater from the storage tank 27 into the filter box. The filter pipe 36, in conjunction with activated carbon 37, adsorbs surfactants, greases, and other pollutants from the wastewater, ensuring it meets discharge standards or reuse requirements. Pressure gauge 42 monitors the filter box's operation. The rational arrangement of the first heating element 45 around the plating bath 2 and the second heating element 48 at the bottom helps to evenly raise the temperature of the plating solution, preventing localized overheating or underheating, reducing thermal stress damage to the plating bath 2, and rapidly heating the plating solution to the process temperature, reducing waiting time and improving the overall efficiency of the production line. The system improves energy efficiency. Combined with the heat insulation board 51, it effectively prevents heat transfer, reduces temperature fluctuations, and allows more heat generated by the heating element to be utilized, thus improving energy efficiency and significantly reducing the load on the heating element, thereby saving energy costs. The temperature sensor 43 monitors the temperature data of the fluxing solution in real time, ensuring the temperature remains within the set range and preventing excessively high or low temperatures, thus improving the stability of the galvanized layer quality. The display screen 55, along with the start button 56 and control button 57, can display the temperature parameters of the fluxing tank 2 in real time, helping operators to promptly grasp the tank's condition and make adjustments as needed, ensuring process stability and product quality.

[0035] Working Principle: The synchronous motor 4 drives the ball screw 10 to rotate, causing the ball sleeve 12 to move linearly, which in turn moves the cleaning scraper 19 at a constant speed to scrape the iron slag from the bottom of the plating tank. This prevents the slag from accumulating and affecting the quality of zinc plating, and also reduces the viscosity of the flux, improving its fluidity. Combined with the magnetic filter 22, which uses magnetic force to attract iron slag and ferromagnetic impurities, it can intercept even finer iron slag particles inside the plating tank 2. When the cleaning scraper 19 scrapes the iron slag from the plating tank 2 to the designated area, the electric winch 17, connected to the lifting ring 21, moves the cleaning scraper 19 upwards along with the slider 15 and the slide rail 14, automatically retrieving the slag, improving retrieval efficiency and optimizing iron slag cleaning. This process improves galvanizing quality and production efficiency. After the slag is removed, the scraper and filter screen must be manually cleaned to remove dirt and slag impurities, ensuring normal operation. The motor and lead screw are protected by the protective cover 5 and the protective pipe 8 to prevent splashing liquid in the fluxing tank 2 and avoid affecting normal operation due to the accumulation of liquid or dust. When the fluxing solution reaches the usage standard and becomes wastewater, the drain valve 24 is opened through the fluxing tank 2, and the first water pump 25 is used to pump the wastewater into the storage tank 27. The drive motor 32 drives the screw rod 31 to rotate and stir evenly. Zinc hydroxide and ammonia are added through the inlet 28 to adjust the pH value to 3.0-5.5. The system enables the precipitation of metal ions within the wastewater. The second pump 34 facilitates the extraction of neutralized and precipitated wastewater from the storage tank 27 into the filter box. The filter pipe 36, in conjunction with activated carbon 37, adsorbs surfactants, greases, and other pollutants from the wastewater, ensuring it meets discharge standards or reuse requirements. Pressure gauge 42 monitors the filter box's operation. The rational arrangement of the first heating element 45 around the plating bath 2 and the second heating element 48 at the bottom helps to evenly raise the temperature of the plating solution, preventing localized overheating or underheating, reducing thermal stress damage to the plating bath 2, and rapidly heating the plating solution to the process temperature, thus reducing waiting time and improving efficiency. The high overall efficiency of the production line, combined with the heat insulation board 51, effectively prevents heat transfer, reduces temperature fluctuations, and allows more heat generated by the heating element to be utilized, improving energy efficiency. This significantly reduces the load on the heating element, thereby saving energy costs. The temperature sensor 43 monitors the temperature data of the fluxing solution in real time, ensuring that the temperature of the fluxing solution is within the set range, avoiding excessively high or low temperatures, and improving the stability of the zinc coating quality. The display screen 55, along with the start button 56 and control button 57, can display the temperature parameters of the fluxing tank 2 in real time, helping operators to keep abreast of the tank conditions and make adjustments as needed, ensuring process stability and product quality.

[0036] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heating device for hot-dip galvanized workpieces, characterized in that, The system includes a support frame (1), inside which is a matching plating bath (2). The plating bath (2) is connected and fixed to the support frame (1) by a matching connecting slot (3). A symmetrically distributed synchronous motor (4) is provided on the top of the support frame (1). A matching protective cover (5) is provided on the outer wall of the synchronous motor (4). The protective cover (5) is connected and fixed to the support frame (1) by a first bolt (6). A fixing block (7) is provided on one side of the protective cover (5). The fixing block (7) is equipped with... The protective cover (5) and the fixed block (7) are respectively connected to the two ends of the protective tube (8) on the opposite side of the protective cover (5) and the fixed block (7). The protective tube (8) is connected and fixed to the protective cover (5) and the fixed block (7) by setting a second bolt (9). The protective tube (8) is provided with a ball screw (10) that is compatible with it. The output shaft of the synchronous motor (4) is connected and fixed to one end of the ball screw (10) by setting a coupling. The other end of the ball screw (10) is connected and fixed to the fixed block (7) by setting a bearing (11). The outer wall of the ball screw (10) is slidably connected to the inner wall of the ball sleeve (12), the outer wall of the ball sleeve (12) is connected to the inner wall of one end of the movable bracket (13), the two movable brackets (13) are respectively provided with a slide rail (14) on one side, the slide rail (14) is slidably connected to a slider (15), and the top of the two movable brackets (13) is connected to the bottom of the support plate (16), the top of the support plate (16) is provided with an electric winch (17), the electric winch (17) is connected and fixed to the support plate (16) by a third bolt (18), the inner wall of the plating tank (2) is provided with a cleaning scraper (19), the cleaning scraper (19) is connected and fixed to the slider (15) by a knob (20); The wire rope of the electric winch (17) is connected and fixed to the cleaning scraper (19) by a lifting ring (21) set on the support plate (16); a drain pipe (23) is provided on one side of the bottom of the auxiliary plating tank (2), and the auxiliary plating tank (2) is connected to the inlet of the first water pump (25) by a first drain valve (24) set on the drain pipe (23). The first water pump (25) is set on one side of the support frame (1), and the outlet of the first water pump (25) is connected to one end of a water guide pipe (26) that is compatible with it. The other end of the water guide pipe (26) is connected to one side of the water storage tank (27), and the water storage tank (27) is connected and fixed to the first water pump (25) by setting the water guide pipe (26). A water outlet pipe (33) is provided on the other side of the water storage tank (27), and the water storage tank (27) is connected to the inlet of the second water pump (34) through the water outlet pipe (33) via a second drain valve; A filter bucket (35) is provided above the second water pump (34). A filter tube (36) adapted to it is provided inside the filter bucket (35). The filter bucket (35) is connected and fixed to the second water pump (34) by the filter tube (36). An activated carbon (37) adapted to it is connected to the top outer wall of the filter tube (36). The activated carbon (37) is connected and fixed to the filter tube (36) by the fastening nut (38). A pressure cover (39) adapted to it is provided on the top of the filter bucket (35). The pressure cover (39) is connected and fixed by the pressure bolt (40) and the movable locking block (41). A pressure gauge (42) is provided on the top of the pressure cover (39).

2. The heating device for hot-dip galvanized workpieces according to claim 1, characterized in that: The cleaning scraper (19) has magnetic filters (22) on its inner sides at both ends, and the magnetic filters (22) are connected and fixed to the cleaning scraper (19) by means of threaded rods.

3. The heating device for hot-dip galvanized workpieces according to claim 2, characterized in that: The top of the water storage tank (27) is provided with a dispensing port (28), and a matching fixing plate (29) is provided above the dispensing port (28). The fixing plate (29) is connected and fixed to the top of the water storage tank (27) by a fourth bolt (30). The interior of the water storage tank (27) is provided with a matching spiral rod (31). The top of the fixing plate (29) is provided with a drive motor (32). The output shaft of the drive motor (32) is connected and fixed to the spiral rod (31) by a coupling provided on the fixing plate (29).

4. The heating device for hot-dip galvanized workpieces according to claim 1, characterized in that: Temperature sensors (43) are evenly distributed below the plating bath (2). Several support rods (44) are provided on the bottom inner wall of the support frame (1). A first electric heating tube (45) is provided on the opposite side of the several support rods (44). The first electric heating tube (45) is connected and fixed to the several support rods (44) by setting a fixing ring (46) and a fixing bolt (47) that is compatible with it.

5. The heating device for hot-dip galvanized workpieces according to claim 4, characterized in that: The plating bath (2) is provided with a second electric heating tube (48) adapted to it. The second electric heating tube (48) is connected and fixed to the support frame (1) by a support ring (49) and a fifth bolt (50) adapted to it. The outer side of the first electric heating tube (45) is provided with a heat insulation board (51) adapted to the support frame (1).

6. The heating device for hot-dip galvanized workpieces according to claim 5, characterized in that: The heat insulation board (51) is connected and fixed to the support frame (1) by setting the mounting slot (52). A control box (53) is provided on one side of the support frame (1). The control box (53) is connected and fixed to the support frame (1) by setting the L-shaped bracket (54).

7. The heating device for hot-dip galvanized workpieces according to claim 6, characterized in that: The control box (53) is equipped with a display screen (55) adapted to it, and a start button (56) is provided below the display screen (55).

8. The heating device for hot-dip galvanized workpieces according to claim 7, characterized in that: The start button (56) has symmetrically distributed control buttons (57) on one side.

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