Energy-saving multifunctional galvanizing furnace for hot galvanizing

Abstract

The invention discloses an energy-saving type multifunctional galvanizing furnace for hot galvanizing, relates to the technical field of metal surface treatment, and aims to solve the technical problem that the galvanizing quality of a workpiece is affected due to the fact that the temperature of molten zinc on the surface of a current open type galvanizing furnace is unstable. The lifting mechanism is arranged at the top of the galvanizing furnace, the lifting mechanism comprises two cover plates for blocking an opening of the galvanizing furnace, a driving assembly for controlling the two cover plates to move in opposite directions and a hanging bracket for clamping and limiting a workpiece, and the hanging bracket can control the workpiece to ascend and descend through the displacement of the two cover plates. The driving assembly is used for controlling the two cover plates to move in the opposite directions, synchronous linkage of workpiece lifting is achieved, a furnace body opening can be tightly plugged in a non-operation state, the furnace body opening is automatically opened when workpieces are galvanized, the proper opening size can be automatically adjusted according to the sizes of the workpieces, the size of the furnace body opening is automatically adjusted, and the service life of the furnace body is prolonged. And heat loss is reduced, and the workpiece surface galvanizing quality is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of metal surface treatment, more particularly to a multifunctional galvanizing furnace for energy-saving hot galvanizing. BACKGROUND

[0002] Hot galvanizing, as an effective anticorrosion process for steel materials, has been widely used in many fields such as construction, transportation, power and agriculture. The performance of the hot galvanizing furnace, the core equipment, directly determines the galvanizing quality, energy consumption and production efficiency.

[0003] Currently, the loading and unloading operations for small workpieces are generally performed by electric or manual operation. In the electric operation, the workpiece is assembled from the position outside the galvanizing furnace by displacement equipment, and then automatically moved to the position above the galvanizing furnace for automatic downward movement to immerse in the galvanizing liquid. In the manual operation, the loading and unloading operations are directly performed at the position above the galvanizing furnace.

[0004] Currently, in order to facilitate the lifting of the workpiece into and out of the furnace, a large open operation port is usually provided, which causes a large amount of heat to be directly dissipated into the environment, resulting in serious energy waste. This causes the temperature of the galvanizing liquid on the surface of the galvanizing furnace to be lower than that of the zinc liquid at the bottom, which makes it difficult to control the quality of the surface galvanizing of the workpiece and causes uneven surface galvanizing of the workpiece. In view of this, a multifunctional galvanizing furnace for energy-saving hot galvanizing is proposed. SUMMARY

[0005] The present application aims to provide a multifunctional galvanizing furnace for energy-saving hot galvanizing to solve the technical problem of unstable surface zinc liquid temperature of the current open galvanizing furnace, which affects the quality of workpiece galvanizing.

[0006] To solve the above technical problems, the present application provides the following technical solution: a multifunctional galvanizing furnace for energy-saving hot galvanizing, comprising a galvanizing furnace; a lifting mechanism arranged at the top of the galvanizing furnace, the lifting mechanism comprising two cover plates for blocking the opening of the galvanizing furnace, a driving assembly for controlling the opposite displacement of the two cover plates, and a hanger for clamping and limiting the workpiece, and the lifting of the workpiece can be controlled by the displacement of the two cover plates; wherein the two galvanizing furnaces comprise a hollow furnace body without shielding at the top, arc-shaped heating plates are arranged between the inner walls of the furnace body, a plurality of electric heating rods are embedded at the bottom of the heating plates, and a scraper is arranged at the bottom of the cover plate and can be deformed by being pressed by the heating plates when the cover plate is displaced The driving assembly controls the opposite displacement of the two cover plates, which not only realizes the synchronous linkage of the lifting of the workpiece, but also tightly blocks the opening of the furnace body in the non-working state, automatically opens the opening of the furnace body during the galvanizing of the workpiece, and automatically adjusts the appropriate opening size according to the size of the workpiece, effectively reducing the range of surface zinc liquid heat dissipation, improving the stability of the surface zinc liquid temperature, reducing the influence of the surface galvanizing quality of the workpiece, and improving the uniformity of galvanizing.

[0007] Preferably, the top of the cover plate is provided with a limiting groove on both sides, a rack is arranged in the limiting groove on one side, and a limiting piece connected with the outer wall of the furnace body is arranged in the rack on the other side.

[0008] Preferably, the driving assembly comprises a motor arranged on the side of the furnace body close to the rack and a support plate, a belt pulley is arranged on the output end of the motor and the side surface of the support plate, a belt is connected between the two belt pulleys, gear one is arranged on the end of the two belt pulleys, gear one on the side of the motor is engaged with the rack on the same side, a rotating shaft with a smaller diameter than the belt pulley is further arranged on the side surface of the support plate, and gear two engaged with the gear one and the rack on the same side is arranged on the end of the rotating shaft.

[0009] Preferably, the gear one on one end of the motor is arranged in a staggered manner with the gear one on one side of the support plate, and the gear one on one side of the support plate is located on the outer side of the furnace body, the number of teeth of the gear two is consistent with that of the gear one, and the thickness of the gear two is greater than that of the gear one.

[0010] Preferably, the middle part of the scraper is hollow, the outer edge is a frame strip with toughness, a guide block is arranged on the bottom of the two side edges of the scraper, a guide groove in sliding connection with the guide block is arranged on the side surface of the furnace body close to the scraper, and the angle of the guide groove is the same as that of the arc surface of the heating plate.

[0011] Preferably, a discharge port for discharging the scraped material of the scraper is arranged on the side wall close to the two ends of the heating plate, a flow guide cover in communication with the discharge port is arranged on the bottom of the heating plate, openings are arranged on the two side surfaces of the furnace body, a supporting plate is arranged on the inner wall close to the opening, and a collecting box corresponding to the position of the flow guide cover and collecting the zinc liquid waste residue is arranged between the opening and the supporting plate.

[0012] Preferably, the collecting box comprises a liquid collecting box for collecting the zinc liquid, a residue collecting box capable of filtering the zinc liquid is arranged on the top of the liquid collecting box, a positioning insertion slot is arranged on the top of the liquid collecting box, and an insertion plate limiting the insertion of the insertion slot is arranged on the bottom of the residue collecting box.

[0013] Preferably, the hanger comprises a base arranged on the top of the two cover plates, a support frame inclined to the center line of the furnace body is arranged between the two bases, a top plate is rotatably connected between the end portions of the two support frames, and a clamp capable of adjusting the position in the longitudinal direction and limiting the workpiece is arranged at the center of the top plate.

[0014] Preferably, a control box electrically connected with the electric heating rod and the motor is arranged on the outer wall of the furnace body.

[0015] Compared with the prior art, the beneficial effects of the present application are: 1. The present application controls the displacement of two cover plates in opposite directions through a driving assembly, which not only realizes the synchronous linkage of the lifting of workpieces, but also forms a tight seal on the opening of the furnace body in the non-working state, automatically opens the opening of the furnace body when the workpiece is galvanized, and can automatically adjust the appropriate opening size according to the size of the workpiece, effectively reducing the range of surface zinc liquid heat dissipation, improving the stability of the surface temperature of the liquid zinc, reducing the influence of the surface galvanizing quality of the workpiece, and improving the uniformity of galvanizing.

[0016] 2. The present application also drives the scraper to slide along the heating plate camber surface when the cover plate is displaced, scrapes the zinc liquid waste residue attached to the inner wall of the heating plate with the flexible frame strip of the scraper, and simultaneously stirs the galvanizing liquid, reduces the occurrence of surface condensation, further improves the uniformity of the surface galvanizing of the workpiece, and automatically falls into the collection box through the discharge port and the flow guide cover, without the need for manual entry into the furnace for cleaning, reducing labor intensity, avoiding the risk of high-temperature operation, and reducing the shutdown time caused by manual cleaning.

[0017] 3. The present application also integrates the cover plate sealing, workpiece lifting, and scraper cleaning functions through the lifting mechanism, synchronously completes the "cover plate opening and closing-workpiece in and out of the furnace-scraper slag cleaning" action through the linkage of the motor-driven pulley and the rack, does not need to additionally configure independent driving equipment, reduces the equipment occupied space, simplifies the operation steps, and improves the operation efficiency.

[0018] 4. The linkage of the cover plate opening and closing and the workpiece in and out of the furnace can improve the safety of the operation when the workpiece is loaded and unloaded, prevent the unstable work from falling into the galvanizing liquid and causing splashing problems, and also reduce the influence of heat on employees when manually loading and unloading. DETAILED DESCRIPTION

[0019] Figure 1 is a schematic diagram of the overall structure of the present application; Figure 2 is a schematic diagram of part of the structure of the present application; Figure 3 is a schematic diagram of the working of part of the structure of the present application; Figure 4 is a schematic diagram of the section of part of the structure of the present application; Figure 5 is a schematic diagram of the section of the structure of the present application; Figure 6 is a schematic diagram of the cover plate structure of the present application; Figure 7 is a schematic diagram of the structure of the driving assembly in the present application; Figure 8 is a schematic diagram of the structure of the hanger in the present application; Figure 9 is a schematic diagram of the structure of the collection box in the present application.

[0020] Explanation of the labels in the diagram: 1. Galvanizing furnace; 101. Furnace body; 102. Heating plate; 103. Heating rod; 104. Control box; 105. Discharge port; 106. Flow guide; 107. Guide groove; 2. Lifting mechanism; 3. Cover plate; 301. Limiting groove; 302. Rack; 303. Limiting component; 304. Scraper; 305. Guide block; 4. Drive components; 401. Motor; 402. Support plate; 403. Pulley; 404. Belt; 405. Gear 1; 406. Shaft; 407. Gear 2; 5. Hanger; 501. Base; 502. Support frame; 503. Top plate; 504. Clamp; 6. Collection box; 601. Liquid collection box; 602. Slag collection box. Detailed Implementation

[0021] like Figures 1 to 9 As shown, the present invention relates to an energy-saving, multi-functional hot-dip galvanizing furnace, comprising: The galvanizing furnace 1, comprising two furnace bodies 101, is hollow and has an unobstructed top. An arc-shaped heating plate 102 is installed between the inner walls of the furnace body 101, and multiple electric heating rods 103 are embedded in the bottom of the heating plate 102. The furnace body 101 adopts a hollow, unobstructed top design, which provides ample passage for the lifting and lowering of workpieces and facilitates full contact between the molten zinc and the workpieces, ensuring uniform galvanizing. The furnace body 101 is preferably made of a high-temperature resistant and corrosion-resistant alloy material (such as 310S stainless steel), which can withstand long-term erosion from the high-temperature molten zinc (usually 440-460℃) during the galvanizing process, thus extending its service life.

[0022] The curved surface design fits closely to the inner wall of the furnace body 101, forming a surrounding heating space, making the temperature field distribution inside the furnace more uniform and avoiding differences in the fluidity of the zinc liquid caused by local temperature differences; the heating plate 102 uses a metal substrate with excellent thermal conductivity (such as a copper substrate with a high-temperature resistant coating) to ensure that the heat generated by the heating rod 103 is quickly transferred to the zinc liquid, improving heating efficiency.

[0023] Multiple heating rods 103 are evenly embedded in the bottom of the heating plate 102, which can realize zoned heating control. The power of the heating rods 103 in different areas can be adjusted by the control box 104 to accurately control the temperature of each position in the furnace. The heating rods 103 are made of nickel-chromium alloy, which has the characteristics of high temperature resistance, high heating efficiency and long service life. The embedded installation can avoid direct contact with the zinc liquid and reduce corrosion damage.

[0024] The lifting mechanism 2 is located on the top of the galvanizing furnace 1. The lifting mechanism 2 includes two cover plates 3 that seal the opening of the galvanizing furnace 1, a drive assembly 4 that controls the opposite displacement of the two cover plates 3, and a hanger 5 that clamps and limits the workpiece. The hanger 5 can control the lifting and lowering of the workpiece by the displacement of the two cover plates 3. By controlling the opposite movement of the two cover plates 3 through the drive assembly 4, the hanger 5 can be controlled to achieve an automatic lifting effect. Thus, the size of the opening of the furnace body 101 can be automatically adjusted according to the galvanizing range of the workpiece, thereby reducing the heat loss of the galvanizing liquid surface.

[0025] The bottom of the cover plate 3 is provided with a scraper 304 that deforms with the extrusion of the heating plate 102 as the cover plate 3 moves. Limiting grooves 301 are provided on both sides of the top of the cover plate 3. A rack 302 is provided inside the limiting groove 301 on one side, and a limiting member 303 connected to the outer wall of the furnace body 101 is fitted inside the rack 302 on the other side. The limiting grooves 301 on both sides have a clear division of labor. The rack 302 is installed on one side to transmit driving power, and the rack 302 on the other side cooperates with the outer wall of the furnace body 101 through the limiting member 303 (preferably a sliding bearing or a wear-resistant slider) to limit the displacement direction of the cover plate 3 and ensure that it can only move smoothly in the horizontal direction. The rack 302 is made of high-strength alloy steel and the tooth surface is heat-treated by quenching to improve wear resistance and transmission accuracy and avoid tooth surface wear caused by long-term meshing.

[0026] Furthermore, the scraper 304 has a hollow center and a flexible frame on the outside. Guide blocks 305 are provided at the bottom of both sides of the scraper 304. The side of the furnace body 101 that is in contact with the scraper 304 has a guide groove 107 that is slidably connected to the guide block 305, and the guide groove 107 has the same arc angle as the heating plate 102. The hollow design in the middle can reduce the resistance during movement and prevent the scraped zinc liquid slag from accumulating in the middle of the scraper. The flexible frame on the outside is made of high temperature resistant elastic material (such as ceramic fiber reinforced silicone), which can be tightly pressed and deformed with the arc heating plate 102 under the action of the cover plate 3 to ensure thorough scraping, and can withstand the high temperature in the furnace without failure. The guide blocks 305 on both sides slide in cooperation with the guide groove 107 of the furnace body 101, and the angle of the guide groove 107 is consistent with the arc surface of the heating plate 102, ensuring that the scraper always moves along the arc trajectory of the heating plate 102 and avoiding jamming or missed scraping during the scraping process.

[0027] In an embodiment of the present invention, the drive assembly 4 includes a motor 401 and a support plate 402 disposed on the side of the furnace body 101 close to the rack 302. Both the output end of the motor 401 and the side of the support plate 402 are provided with pulleys 403, and a belt 404 connects the two pulleys 403. Each end of the two pulleys 403 is provided with a gear 405, and the gear 405 on the side of the motor 401 meshes with the rack 302 on the same side. The side of the support plate 402 is also provided with a gear 405 with a diameter smaller than that of the pulleys 401. The rotating shaft 406 of the 3 has a gear 407 at its end that meshes with the gear 405 and rack 302 on the same side; the motor 401 is a servo motor, which has the characteristics of precise speed control and fast start and stop response. The moving speed of the cover plate 3 can be adjusted through the control box 104, thereby controlling the lifting rate of the workpiece and avoiding zinc liquid splashing; the support plate 402 is welded and fixed to the outer wall of the furnace body 101 to provide stable support for the pulley 403, gear 405 and other components, and to prevent vibration during transmission. Furthermore, (such as) Figure 7 The gear 405 at one end of the motor 401 is offset from the gear 405 on one side of the support plate 402, and the gear 405 on the support plate 402 is located on the outside of the furnace body 101. The number of teeth of the gear 407 is the same as that of the gear 405, and the thickness of the gear 407 is greater than that of the gear 405. By setting the two pulleys 403 with different lengths, the installation position of the two gears 405 can be changed, so that the gear 405 at the motor 401 end can mesh with the rack 302, while the gear 405 at the other end is away from the rack 302 on the same side and can only control the gear 407. This allows the gear 407 to rotate in the opposite direction with the gear 405 on the other side, thus driving the two cover plates 3 to move in opposite directions. The larger thickness of the gear 407 increases the contact surface of the meshing teeth, enabling the teeth to engage at different positions.

[0028] Furthermore, a control box 104 electrically connected to the heating rod 103 and the motor 401 is installed on the outer wall of the furnace body 101; all wiring of the heating rod 103, motor 401 and control box 104 is protected by high-temperature sleeves, and the wiring layout avoids high-temperature areas and moving parts. The control box 104 has multiple protection functions such as overload, short circuit and over-temperature.

[0029] In an embodiment of the present invention, the heating plate 102 has a discharge port 105 on the side wall near both ends for scraping and discharging material from the scraper 304. The bottom of the heating plate 102 is provided with a guide hood 106 communicating with the discharge port 105. The furnace body 101 has openings on both sides, and a support plate is provided on the inner wall near the opening. A collection box 6 is provided between the opening and the support plate, corresponding to the position of the guide hood 106 and for collecting zinc liquid waste. The design of the discharge port 105 can discharge the impurities scraped by the scraper 304, and the design of the guide hood 106 can limit the discharge position. The connection between the guide hood 106 and the heating plate 102 can achieve the effect of synchronous heating and reduce the probability of zinc plating liquid condensing and agglomerating.

[0030] Furthermore, (such as) Figure 9 The (middle) collection box 6 includes a collection box 601 for collecting molten zinc. A slag collection box 602 for filtering molten zinc is stacked on top of the collection box 601. The top of the collection box 601 has a positioning slot, and the bottom of the slag collection box 602 has a stop plate for insertion and positioning within the slot. The collection box 601 is also made of 310S high-temperature resistant stainless steel, capable of withstanding the high temperature (440-460℃) of the molten zinc, preventing deformation and damage. A drain valve is installed at the bottom of the collection box 601 to facilitate the discharge and recycling of collected pure molten zinc, reducing waste. The inner wall of the collection box 601 is polished to reduce zinc residue adhesion and facilitate cleaning. The collection box 601 and the side support plate of the furnace body 101 are pull-out type. The positioning connection between the stop plate and the slot ensures that the collection box 601 accurately aligns with the outlet of the guide shroud 106 after installation, preventing zinc leakage. The slag collection box 602 is made of high-temperature resistant stainless steel (such as 304 stainless steel). The box interior is equipped with multiple layers of filter screens (0.5-2mm pore size) to classify and filter the zinc liquid waste scraped off by the scraper 304, separating waste residue of different particle sizes. The top of the slag collection box 602 is open to facilitate the collection of zinc liquid waste guided by the guide hood 106. Handles are provided on both sides of the box for easy manual removal and cleaning. The height of the slag collection box 602 is less than that of the liquid collection box 601, ensuring that the filtered zinc liquid can flow smoothly into the liquid collection box 601 for collection.

[0031] In an embodiment of the present invention, the hanger 5 includes a base 501 disposed on top of two cover plates 3. A support frame 502 inclined towards the centerline of the furnace body 101 is disposed between the two bases 501. A top plate 503 is rotatably connected between the ends of the two support frames 502. A clamp 504, which can be longitudinally adjusted in position and limits the workpiece, is disposed at the center of the top plate 503. The support frame 502 is made of seamless steel pipe bent into shape, and its surface is treated with rust prevention and high temperature resistance (such as spraying with high-temperature anti-corrosion coating) to adapt to the high-temperature environment around the furnace body 101. The angle of inclination of the two side support frames 502 towards the centerline of the furnace body 101 is designed to be 15-30°, which ensures stable support for the top plate 503 and allows the workpiece to be accurately aligned with the center area of ​​the furnace body 101 after suspension, ensuring uniform galvanizing. The support frame 502 is connected to the base 501 and the top plate 503 by welding. The fixture 504 adopts an adjustable three-jaw chuck structure, with high-temperature resistant rubber pads on the inner side of the jaws, which enhances the clamping stability of the workpiece and prevents scratches on the workpiece surface. The fixture 504 is connected to the top plate 503 via a threaded connecting rod at the top. The surface of the connecting rod is engraved with scale markings, and the longitudinal height of the fixture 504 can be adjusted by rotation.

[0032] Working Principle: This embodiment provides an energy-saving multi-functional hot-dip galvanizing furnace. During use, the workpiece to be galvanized is clamped and fixed using fixture 504 to ensure a stable center of gravity. The control box 104 is activated, and the heating temperature of the heating rod 103 is set to begin preheating / maintaining the zinc bath. When the appropriate galvanizing temperature is reached, the motor 401 is started, driving two gears 405 to rotate via pulley 403 and belt 404. Gear 405 at the motor 401 directly drives the rack 302 of the cover plate 3 on the same side, causing the cover plate 3 to move to one side. Gear 405 at the support plate 402 meshes with the rack 302 on the same side via gear 407, driving the other cover plate 3 to move synchronously in the opposite direction, thus opening the furnace opening. During the movement of the cover plate 3, the movement of the bases 501 on both sides reduces the clamping angle between the support frame 502 and the cover plate 3, thereby causing the top plate 503 to move downwards and lower the workpiece into the zinc bath, completing the workpiece loading operation. The opening and closing of the cover plates 3 on both sides can adjust the galvanizing range of the workpiece, thereby reducing heat loss during galvanizing and improving the stability of the surface temperature of the galvanizing solution. During the movement of the cover plate 3, the bottom of the scraper 304 slides along the arc surface of the heating plate 102, scraping off the zinc dross adhering to the surface of the heating plate 102 through extrusion deformation. At the same time, it can also agitate the galvanizing solution to prevent the condensation on the surface of the galvanizing solution from affecting the galvanizing of the workpiece. After galvanizing is completed, the motor 401 is started to rotate forward, causing the two cover plates 3 to move back in the opposite direction to close the opening of the furnace body 101. The cover plate 3 drives the hanger 5 and the workpiece to rise, removing the zinc bath until the workpiece is completely removed from the furnace. After the workpiece is removed from the furnace body 101, it can remain in place for a certain period of time to drain the galvanized liquid from its surface. Once the workpiece is moved to a suitable position outside the furnace, the cover plate 3 is closed, the clamp 504 is released, and the galvanized workpiece is removed. The cover plate 3 is then returned to its initial position to prepare for the next work cycle. Keeping the furnace body 101 closed during the handling process reduces heat loss and prevents workpieces from falling directly into the galvanized liquid, thus improving the safety of handling workpieces. When it is necessary to treat the zinc dross on the surface of the heating plate 102, the cover plate 3 can be moved to its maximum position after the hanger 5 is removed, allowing the scraped zinc dross to slide along the arc surface of the heating plate 102 to both sides and fall into the guide hood 106 through the discharge port 105. The zinc dross falls into the dross collection box 602 through the guide hood 106, and the liquid zinc permeates through the filter screen into the liquid collection box 601, achieving dross-liquid separation and collection. By placing the collection box 6 inside the furnace body 101, a heat preservation effect can be achieved, reducing the probability of galvanizing liquid solidification, facilitating subsequent removal and cleaning operations, and improving the flexibility of structural fit.

[0033] The embodiments disclosed in this invention are preferred embodiments, but are not limited thereto. Those skilled in the art can easily understand the spirit of this invention based on the above embodiments and make different extensions and variations, but as long as they do not depart from the spirit of this invention, they are all within the protection scope of this invention.

Claims

1. An energy-saving, multi-functional hot-dip galvanizing furnace, characterized in that, include: Galvanizing furnace (1); The lifting mechanism (2) is set on the top of the galvanizing furnace (1). The lifting mechanism (2) includes two cover plates (3) that seal the opening of the galvanizing furnace (1), a drive assembly (4) that controls the opposite displacement of the two cover plates (3), and a hanger (5) that clamps and limits the workpiece. The hanger (5) can control the lifting of the workpiece by the displacement of the two cover plates (3). Among them, the two galvanizing furnaces (1) include hollow furnace bodies (101) with no top obstruction. An arc-shaped heating plate (102) is provided between the inner walls of the furnace body (101). Multiple electric heating rods (103) are embedded in the bottom of the heating plate (102). A scraper (304) is provided at the bottom of the cover plate (3) and deforms with the extrusion of the heating plate (102) by the displacement of the cover plate (3).

2. The energy-saving multi-functional hot-dip galvanizing furnace according to claim 1, characterized in that, The top two sides of the cover plate (3) are provided with limiting grooves (301). A rack (302) is provided inside the limiting groove (301) on one side, and a limiting member (303) connected to the outer wall of the furnace body (101) is provided inside the rack (302) on the other side.

3. The energy-saving multi-functional hot-dip galvanizing furnace according to claim 2, characterized in that, The drive assembly (4) includes a motor (401) and a support plate (402) disposed on the side of the furnace body (101) close to the rack (302). The output end of the motor (401) and the side of the support plate (402) are both provided with pulleys (403). A belt (404) is connected between the two pulleys (403). A gear (405) is provided at the end of each of the two pulleys (403). The gear (405) on the side of the motor (401) meshes with the rack (302) on the same side. A shaft (406) with a diameter smaller than that of the pulley (403) is also provided on the side of the support plate (402). A gear (407) meshes with the gear (405) and the rack (302) on the same side at the end of the shaft (406).

4. The energy-saving multi-functional hot-dip galvanizing furnace according to claim 3, characterized in that, The gear 1 (405) at one end of the motor (401) is misaligned with the gear 1 (405) on one side of the support plate (402), and the gear 1 (405) on one side of the support plate (402) is located on the outside of the furnace body (101). The number of teeth of the gear 2 (407) is the same as that of the gear 1 (405), and the thickness of the gear 2 (407) is greater than that of the gear 1 (405).

5. The energy-saving multi-functional hot-dip galvanizing furnace according to claim 1, characterized in that, The scraper (304) has a hollow center and a resilient frame on the outside. Guide blocks (305) are provided at the bottom of both sides of the scraper (304). The furnace body (101) has a guide groove (107) that slides and connects with the guide block (305) on the side of the scraper (304). The guide groove (107) has the same arc angle as the heating plate (102).

6. The energy-saving multi-functional hot-dip galvanizing furnace according to claim 1, characterized in that, The heating plate (102) has a discharge port (105) on the side wall near both ends for scraping and discharging material by the scraper (304). The bottom of the heating plate (102) is provided with a flow guide (106) communicating with the discharge port (105). The furnace body (101) has openings on both sides, and a support plate is provided on the inner wall near the opening. A collection box (6) corresponding to the position of the flow guide (106) and collecting zinc liquid waste is provided between the opening and the support plate.

7. The energy-saving multi-functional hot-dip galvanizing furnace according to claim 6, characterized in that, The collection box (6) includes a liquid collection box (601) for collecting zinc liquid. A slag collection box (602) for filtering zinc liquid is stacked on top of the liquid collection box (601). A positioning slot is provided on the top of the liquid collection box (601). A plug plate that is inserted into and limited by the slot is provided on the bottom of the slag collection box (602).

8. The energy-saving multi-functional hot-dip galvanizing furnace according to claim 1, characterized in that, The hanger (5) includes a base (501) disposed on the top of two cover plates (3), and a support frame (502) inclined towards the center line of the furnace body (101) is disposed between the two bases (501). A top plate (503) is rotatably connected between the ends of the two support frames (502). A clamp (504) that can be longitudinally adjusted and limits the workpiece is disposed at the center of the top plate (503).

9. The energy-saving multi-functional hot-dip galvanizing furnace according to claim 1, characterized in that, A control box (104) electrically connected to the heating rod (103) and the motor (401) is provided on the outer wall of the furnace body (101).

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