Automatic hoisting equipment for hot galvanizing pickling

Abstract

The invention belongs to the technical field of hot galvanizing lifting appliances, and particularly relates to automatic lifting equipment for hot galvanizing pickling, the automatic lifting equipment comprises a lifting frame, a sinking type liquid filtering mechanism, a synchronous type pickling mechanism and a double-end lifting clamping mechanism, the sinking type liquid filtering mechanism comprises a filtering assembly, a liquid pumping assembly and a ground attaching assembly, the filtering assembly is arranged on one side of the lifting frame, and the synchronous type pickling mechanism is arranged on the other side of the lifting frame. The liquid pumping assembly is arranged at the bottom of the filtering assembly, the ground attaching assembly is arranged at the end, away from the filtering assembly, of the liquid pumping assembly, and the synchronous pickling mechanism comprises a liquid guiding assembly and a flushing assembly. According to the automatic lifting equipment for hot galvanizing pickling, metal impurities prone to loosening on the surface of a workpiece can be cleaned away in advance, it can be guaranteed that the pickling degree of the surface of the workpiece is consistent, and acid liquid left on the surface of the workpiece after pickling can be removed.

Description

Technical Field

[0001] The invention belongs to the technical field of hot-dip galvanizing hangers, in particular to an automatic lifting device for hot-dip galvanizing pickling. Background Art

[0002] Hot-dip galvanizing is a process that prevents corrosion by coating the steel surface with a zinc layer. Pickling is one of the key steps in the pre-treatment of hot-dip galvanizing. Its main function is to remove the oxide scale and rust on the steel surface and ensure the firm bonding of the subsequent galvanized layer to the base metal.

[0003] The existing automatic lifting equipment for hot-dip galvanizing and pickling has the following problems: 1. The existing automatic lifting equipment for hot-dip galvanizing pickling does not have the ability to pre-remove impurities on the workpiece surface. As a result, during the pickling process, a large amount of easily loose metal impurities are brought into the pickling tank, thereby reducing the use time of the acid in the pickling tank and increasing the frequency of its replacement. 2. After pickling the workpiece, when lifting the workpiece out of the pickling tank, the pickling time at both ends of the workpiece is uneven, affecting the consistency of the workpiece surface cleanliness and resulting in reduced galvanizing quality; 3. Failure to clean the residual acid on the surface of the workpiece after pickling, thereby prolonging the contact time between the acid and the workpiece, resulting in an increased chance of acid corrosion on the workpiece itself; Therefore, the existing demand for the use of automatic lifting equipment for hot-dip galvanizing and pickling cannot be met. Summary of the Invention

[0004] In view of the above situation, in order to overcome the defects of the existing technology, the present invention provides an automatic lifting equipment for hot-dip galvanizing pickling, which can pre-clean the metal impurities that are easily loosened on the surface of the workpiece, ensure the uniform pickling degree of the workpiece surface, and remove the acid remaining on the surface of the workpiece after pickling.

[0005] The technical solution adopted in this scheme is as follows: This scheme proposes an automatic lifting equipment for hot-dip galvanizing pickling, including a lifting frame, a sinking type filtrate mechanism, a synchronous pickling mechanism and a double-headed lifting clamp mechanism. The sinking type filtrate mechanism includes a filtering component, a liquid pumping component and a ground-attached component. The filtering component is arranged on one side of the lifting frame, the liquid pumping component is arranged at the bottom of the filter component, and the ground-attached component is arranged at the end of the liquid pumping component away from the filter component. The synchronous pickling mechanism includes a liquid guide component and a flushing component. The liquid guide component is arranged on both sides of the lifting frame, and the flushing component is arranged on the side wall of the liquid guide component. The double-headed lifting clamp mechanism includes a lifting component and a clamping component. The lifting component is arranged on the lifting frame and the side wall of the filter component, and the clamping component is arranged on the side of the lifting frame away from the filter component.

[0006] As a further preferred embodiment of the present invention, the filter assembly includes a filter box and a porous titanium metal filter element, the filter box is arranged on one side of the lifting frame, and the porous titanium metal filter element is arranged inside the filter box; the liquid extraction assembly includes a motor barrel, a small liquid ring vacuum pump and a metal bellows telescopic tube, the motor barrel is arranged on the bottom wall of the filter box, the small liquid ring vacuum pump is arranged inside the motor barrel, the discharge end of the small liquid ring vacuum pump is arranged through the inside of the filter box, and the metal bellows telescopic tube is arranged through the motor barrel at the liquid extraction end of the small liquid ring vacuum pump; the ground-mounted assembly includes a ground-mounted assembly A globe cylinder, a liquid port, a spring 1, a protective shell 1, a protective shell 2, a ground-facing electromagnet and a sinking magnet. The ground-facing globe cylinder is connected to an end of a metal bellows telescopic tube 1 away from a small liquid ring vacuum pump. Multiple groups of liquid ports are arranged on the side wall of the globe cylinder. The spring 1 is arranged between the globe cylinder and the motor cylinder on the outside of the metal bellows telescopic tube 1. The protective shell 1 is arranged on the bottom wall of the motor cylinder outside of the spring 1. The protective shell 2 is arranged on the upper wall of the globe cylinder outside of the spring 1. The ground-facing electromagnet is arranged inside the protective shell 1, and the sinking magnet is arranged inside the protective shell 2.

[0007] During use, after the lifting frame drives the workpiece to be immersed in the pickling liquid, the small liquid ring vacuum pump extracts the pickling liquid through the liquid extraction end using the globe cylinder, and the pickling liquid enters the globe cylinder through the liquid port. The pickling liquid inside the globe cylinder enters the filter box under the guidance of the metal corrugated telescopic tube 1, and the pickling liquid inside the filter box is discharged after being filtered by the porous titanium metal filter element. The porous titanium metal filter element filters the impurities inside the acid liquid, reducing the influence of metal impurities on the concentration of the acid liquid.

[0008] Preferably, the liquid guiding assembly includes a steering shaft, two springs, a liquid separating sleeve, two metal corrugated telescopic tubes and a steering plate. The steering plates are symmetrically arranged on both sides of the lifting frame in pairs. The steering shaft is rotatably arranged between the steering plates. The liquid separating sleeve is arranged on the outside of the steering shaft. The two springs are arranged between the liquid separating sleeve and the steering plate on the outside of the steering shaft. The two metal corrugated telescopic tubes are connected between the filter box and the liquid separating sleeve; the flushing assembly includes an arc tube, a flushing port and a locking nut. Multiple groups of the arc tubes are connected in sequence along the vertical direction on the side wall of the liquid separating sleeve. Multiple groups of the flushing ports are arranged on the side wall of the arc tube. The flushing ports are normally arranged relatively. One end of the steering shaft is passed through and arranged under the steering plate. The locking nut is arranged on the outside of the steering shaft under the steering plate. The locking nut is threadedly connected to the steering shaft.

[0009] When in use, the arc tube is pulled toward both sides of the hanging frame. The arc tube rotates between the steering plates through the steering shaft using the deformation of spring 2. The arc tubes move in opposite directions, and the locking nut is rotated. The locking nut rotates along the steering shaft and fits with the bottom of the hanging frame, and the steering shaft changes from a movable state to a fixed state.

[0010] Specifically, the lifting assembly includes a lifting ring 1 and a lifting ring 2, the lifting ring 1 is arranged on the top side wall of the lifting frame, and the lifting ring 2 is arranged on the top side wall of the filter box; the clamping assembly includes a clamping bolt, a clamping plate and a semicircular ring, the clamping plate is symmetrically arranged on the side of the lifting frame away from the filter box, the clamping bolt is symmetrically arranged on the side of the semicircular ring away from the lifting frame, the clamping bolt is passed through the inside of the semicircular ring, the clamping bolt is threadedly connected to the semicircular ring, and the clamping plate is rotatably arranged on the side of the clamping bolt close to the semicircular ring.

[0011] When in use, the lifting rigging is connected to the lifting ring 1 and the lifting ring 2, the workpiece is placed inside the semicircular ring, the clamping bolt is rotated, the clamping bolt drives the clamping plate close to the workpiece, the clamping plate clamps and fixes the workpiece, and then the fixed workpiece is immersed in the pickling tank for pickling operation.

[0012] Among them, the lifting frame, filter box, motor cylinder, metal corrugated telescopic tube 1, earth-contacting cylinder, spring 1, steering shaft, spring 2, liquid separation sleeve, steering plate, arc tube, locking nut, lifting ring 1, lifting ring 2, clamping bolt, clamping plate, semi-circular ring, small liquid ring vacuum pump, protective shell 1 and protective shell 2 are all made of Hastelloy B-3.

[0013] The beneficial effects achieved by adopting the above structure are as follows: Compared with the existing technology, this solution adopts a combination of a sinking filtration mechanism, a synchronous pickling mechanism and a double-headed hanging clamp mechanism. Through the setting of the filtering component, the liquid pumping component, the ground component, the liquid guide component, the flushing component, the hanging component and the clamping component, the speed of removing metal impurities on the surface of the workpiece can be accelerated, the immersion time of the workpiece in the pickling solution can be reduced, and the quality of the workpiece after pickling can be ensured. The magnetic force of the ground-attached electromagnet and the sinking magnet is used to push the ground cylinder to fit the bottom of the pickling tank. The metal impurities deposited at the bottom of the pickling tank are extracted through the liquid port. Under the action of the porous titanium metal filter element, the metal impurities at the bottom of the pickling tank are filtered to maintain the concentration of the pickling solution inside the pickling tank. The workpiece can be pickled quickly, and the frequency of replacing the acid inside the pickling tank can be reduced, the amount of waste liquid discharged, and the difficulty and cost of wastewater treatment can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of this scheme; Figure 2 This is the main stereoscopic view of this scheme; Figure 3 This is a structural diagram of the lifting frame of this solution; Figure 4 This is a schematic structural diagram of the sinking type filtrate mechanism of this scheme; Figure 5 This is the main view of this scheme; Figure 6 This is the rear view of this scheme; Figure 7 This is a side view of the scheme; Figure 8 This is a top view of the scheme; Figure 9 for Figure 8 AA section view; Figure 10 for Figure 2 A magnified structural view of part I; Figure 11 for Figure 1 A magnified structural view of Part II.

[0015] Among them: 1. Lifting frame, 2. Sinking type filtrate mechanism, 3. Filter assembly, 4. Filter box, 5. Porous titanium metal filter element, 6. Pumping assembly, 7. Motor cylinder, 8. Small liquid ring vacuum pump, 9. Metal corrugated telescopic tube 1, 10. Ground assembly, 11. Ground cylinder, 12. Liquid port, 13. Spring 1, 14. Synchronous pickling mechanism, 15. Liquid guide assembly, 16. Steering shaft, 17. Spring 2, 18. Liquid separation sleeve , 19. Metal corrugated telescopic tube 2, 20. Flushing assembly, 21. Arc tube, 22. Flushing port, 23. Locking nut, 24. Double-headed hanging clamp mechanism, 25. Hoisting assembly, 26. Lifting ring 1, 27. Lifting ring 2, 28. Clamping assembly, 29. Clamping bolt, 30. Clamping plate, 31. Steering plate, 32. Semicircular ring, 33. Protective shell 1, 34. Protective shell 2, 35. Ground-attached electromagnet, 36. Sinking magnet.

[0016] The accompanying drawings are used to provide further understanding of the present solution and constitute a part of the specification. Together with the embodiments of the present solution, they are used to explain the present solution and do not constitute a limitation to the present solution. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of this solution will be clearly and completely described below in conjunction with the drawings in the embodiments of this solution. Obviously, the described embodiments are only part of the embodiments of this solution, not all of the embodiments; based on the embodiments in this solution, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this solution.

[0018] In the description of this solution, it should be understood that terms such as "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this solution and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on this solution.

[0019] like Figures 1-11 As shown, the present invention proposes an automatic lifting device for hot-dip galvanizing pickling, comprising a lifting frame 1, a sinking type filtrate mechanism 2, a synchronous pickling mechanism 14 and a double-headed hanging clamp mechanism 24, wherein the sinking type filtrate mechanism 2 is arranged on one side of the lifting frame 1, the ground-attached component 10 is arranged on the filter component 3, and the double-headed hanging clamp mechanism 24 is arranged on the side of the lifting frame 1 away from the sinking type filtrate mechanism 2, the sinking type filtrate mechanism 2 comprises a filter component 3, a liquid extraction component 6 and a ground-attached component 10, the filter component 3 is arranged on one side of the lifting frame 1, and the double-headed hanging clamp mechanism 24 is arranged on the side of the lifting frame 1 away from the sinking type filtrate mechanism 2. The liquid extraction component 6 is arranged at the bottom of the filter component 3, and the ground-attached component 10 is arranged at the end of the liquid extraction component 6 away from the filter component 3. The synchronous pickling mechanism 14 includes a liquid guide component 15 and a flushing component 20. The liquid guide component 15 is arranged on both sides of the hanging frame 1, and the flushing component 20 is arranged on the side wall of the liquid guide component 15. The double-headed hanging clamp mechanism 24 includes a hanging component 25 and a clamping component 28. The hanging component 25 is arranged on the hanging frame 1 and the side wall of the filter component 3, and the clamping component 28 is arranged on the side of the hanging frame 1 away from the filter component 3.

[0020] The filter assembly 3 includes a filter box 4 and a porous titanium metal filter element 5. The filter box 4 is arranged on one side of the lifting frame 1, and the porous titanium metal filter element 5 is arranged inside the filter box 4; the liquid extraction assembly 6 includes a motor cylinder 7, a small liquid ring vacuum pump 8 and a metal bellows telescopic tube 9. The motor cylinder 7 is arranged on the bottom wall of the filter box 4, and the small liquid ring vacuum pump 8 is arranged inside the motor cylinder 7. The discharge end of the small liquid ring vacuum pump 8 is arranged inside the filter box 4, and the metal bellows telescopic tube 9 passes through the motor cylinder 7 and is arranged at the liquid extraction end of the small liquid ring vacuum pump 8; the ground assembly 10 includes a ground cylinder 11, a liquid port 12, a spring 13, a retaining Protective shell 1 33, protective shell 2 34, ground-facing electromagnet 35 and sinking magnet 36, the ground-facing cylinder 11 is connected to the end of the metal bellows telescopic tube 19 away from the small liquid ring vacuum pump 8, multiple groups of liquid ports 12 are arranged on the side wall of the ground-facing cylinder 11, the spring 13 is arranged between the ground-facing cylinder 11 and the motor cylinder 7 on the outside of the metal bellows telescopic tube 9, the protective shell 1 33 is arranged on the bottom wall of the motor cylinder 7 on the outside of the spring 13, the protective shell 2 34 is arranged on the upper wall of the ground-facing cylinder 11 on the outside of the spring 13, the ground-facing electromagnet 35 is arranged inside the protective shell 1 33, and the sinking magnet 36 is arranged inside the protective shell 2 34.

[0021] The liquid guide assembly 15 includes a steering shaft 16, a second spring 17, a liquid separation sleeve 18, a second metal bellows telescopic tube 19 and a steering plate 31. The steering plates 31 are symmetrically arranged on both sides of the hanging frame 1 in pairs. The steering shaft 16 is rotatably arranged between the steering plates 31. The liquid separation sleeve 18 is arranged on the outside of the steering shaft 16. The second spring 17 is arranged between the liquid separation sleeve 18 and the steering plate 31 on the outside of the steering shaft 16. The second metal bellows telescopic tube 19 is connected to the filter box 4 and the liquid separation sleeve. The flushing assembly 20 includes an arc tube 21, a flushing port 22 and a locking nut 23. Multiple groups of the arc tubes 21 are connected in sequence along the vertical direction and are arranged on the side wall of the liquid separation sleeve 18. Multiple groups of the flushing ports 22 are arranged on the side wall of the arc tube 21. The flushing ports 22 are normally arranged relatively. One end of the steering shaft 16 passes through and is arranged below the steering plate 31. The locking nut 23 is arranged on the outside of the steering shaft 16 below the steering plate 31, and the locking nut 23 is threadedly connected to the steering shaft 16.

[0022] The hanging assembly 25 includes a hanging ring 26 and a hanging ring 27, the hanging ring 26 is arranged on the top side wall of the hanging frame 1, and the hanging ring 2 27 is arranged on the top side wall of the filter box 4; the clamping assembly 28 includes a clamping bolt 29, a clamping plate 30 and a semicircular ring 32, the clamping plate 30 is symmetrically arranged on the side of the hanging frame 1 away from the filter box 4, the clamping bolt 29 is symmetrically arranged on the side of the semicircular ring 32 away from the hanging frame 1, the clamping bolt 29 is arranged through the inside of the semicircular ring 32, the clamping bolt 29 is threadedly connected to the semicircular ring 32, and the clamping plate 30 is rotatably arranged on the side of the clamping bolt 29 close to the semicircular ring 32.

[0023] The hanging frame 1, filter box 4, motor cylinder 7, metal corrugated telescopic tube 19, earth-contacting cylinder 11, spring 13, steering shaft 16, spring 2 17, liquid separation sleeve 18, steering plate 31, arc tube 21, locking nut 23, lifting ring 1 26, lifting ring 27, clamping bolt 29, clamping plate 30, semicircular ring 32, protective shell 1 33 and protective shell 2 34 are all made of Hastelloy B-3.

[0024] When in use, the lifting sling is connected to the lifting ring 1 26 and the lifting ring 2 27, and the arc tube 21 is pulled toward the two sides of the lifting frame 1. The arc tube 21 rotates between the steering plates 31 through the deformation of the spring 2 17 through the steering shaft 16, and the arc tube 21 moves in opposite directions. The locking nut 23 is rotated, and the locking nut 23 rotates along the steering shaft 16 to fit the bottom of the lifting frame 1, and the steering shaft 16 changes from the active state to the fixed state, and the workpiece is placed inside the semicircular ring 32. The clamping bolt 29 is rotated, and the clamping bolt 29 drives the clamping plate 30 to approach the workpiece, and the clamping plate 30 clamps and fixes the workpiece, and the locking nut 23 is rotated. The locking nut 23 rotates along the steering shaft 16 away from the bottom of the lifting frame 1, and the steering shaft 16 changes from the fixed state to the active state. The spring 2 17 elastically resets and drives the liquid separation sleeve 18 to rotate along the steering shaft 16. The liquid separation sleeve 18 drives the arc tube 21 to move relatively, and the arc tube 21 surrounds the fixed workpiece. The sling drives the workpiece to the top of the pickling tank through the lifting frame 1. As the sling descends, the lifting frame 1 drives the workpiece to be immersed in the pickling liquid. In the initial state, the spring 13 is normally in a compressed setting, and the ball cylinder 11 is arranged horizontally with the bottom of the workpiece. The workpiece is suspended in the pickling liquid under the support of the sling. The small liquid ring vacuum pump 8 is started by remote control. The small liquid ring vacuum pump 8 extracts the pickling liquid through the liquid extraction end using the ball cylinder 11. The pickling liquid enters the inside of the ball cylinder 11 through the liquid port 12. The pickling liquid inside the ball cylinder 11 enters the inside of the filter box 4 under the guidance of the metal corrugated telescopic tube 9. The filter box 4 discharges the acid to rinse the workpiece; The acid liquid inside the filter box 4 flows into the liquid separation sleeve 18 through the metal corrugated telescopic pipe 2 19. The liquid separation sleeve 18 diverts the acid liquid through the arc tube 21. Since the flushing port 22 is inclined, the acid liquid inside the arc tube 21 is sprayed obliquely onto the surface of the workpiece through the flushing port 22. The angle between the upper wall of the sprayed acid liquid column and the surface of the workpiece is less than a right angle. The metal impurities that fall off the surface of the workpiece are quickly deposited to the bottom of the pickling tank along with the downward flow direction of the acid liquid. At this time, there is a distance between the earth cylinder 11 and the bottom of the pickling tank. The earth electromagnet 35 located inside the protective shell 1 33 is remotely controlled to be energized. The earth electromagnet 35 is energized to generate magnetism. The earth electromagnet 35 and the sinking magnet 36 inside the protective shell 2 34 are arranged with the same pole. The earth electromagnet 35 is fixed inside the protective shell 1 33 and pushes the sinking magnet 36 by repulsion. The sinking magnet 36 drives the earth cylinder 11 to fit with the bottom of the pickling tank under the deformation of the spring 13. The earth cylinder 11 extracts metal impurities washed off by the workpiece and metal impurities precipitated at the bottom of the pickling tank through the side wall liquid port 12. The pickling liquid flowing back into the filter box 4 is filtered by the porous titanium metal filter element 5 and then discharged. The porous titanium metal filter element 5 filters the impurities in the acid solution, reduces the influence of metal impurities on the concentration of the acid solution, ensures the performance of the pickling liquid, and maintains the long-term effective use of the pickling liquid. When the pickling time of the workpiece reaches the time specified by the operator, the ground electromagnet 35 is powered off and demagnetized, and the magnetic field between the ground electromagnet 35 and the sinking magnet 36 disappears. The spring 13 elastically resets and drives the ground cylinder 11 to rise to the same level as the bottom of the lifting frame 1. The sling lifts the workpiece out of the pickling tank through the lifting frame 1. The small liquid ring vacuum pump 8 continues to operate. The workpiece extending from the pickling tank is rinsed by the flushing port 22 for the same pickling time as the workpiece that has not extended from the pickling liquid, ensuring that the cleanliness of the workpiece surface is relatively consistent, which is convenient for improving the processing quality of the workpiece galvanizing operation; The workpiece is completely extended from the pickling liquid, and the liquid port 12 is simultaneously extended from the pickling liquid. The liquid port 12 stops extracting the pickling liquid, and the outside air is extracted by the small liquid ring vacuum pump 8 and sprayed obliquely onto the surface of the workpiece through the arc tube 21. The pickling liquid remaining on the surface of the workpiece falls into the pickling tank along the flow direction of the gas, reducing the corrosion of the residual acid to the workpiece. The pickled workpiece is then hoisted to the cleaning area for cleaning; the above operation can be repeated for the next use.

[0025] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0026] The above description of the present solution and its implementation methods is non-limiting. The drawings show only one implementation method of the present solution, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by this and, without departing from the purpose of the present solution, designs a similar structure and embodiment without creatively designing, they shall fall within the scope of protection of the present solution.

Claims

1. An automatic lifting device for hot-dip galvanizing and pickling, comprising a lifting frame (1), characterized in that: It also includes a sinking type filtrate mechanism (2), a synchronous type pickling mechanism (14) and a double-head type hanging clamp mechanism (24), wherein the sinking type filtrate mechanism (2) includes a filter assembly (3), a liquid extraction assembly (6) and a ground-attached assembly (10), wherein the filter assembly (3) is arranged on one side of the hanging frame (1), the liquid extraction assembly (6) is arranged at the bottom of the filter assembly (3), and the ground-attached assembly (10) is arranged at one end of the liquid extraction assembly (6) away from the filter assembly (3), and the synchronous type pickling mechanism (14) includes a liquid guide assembly (15) and a flushing assembly (20), wherein the liquid guide assembly (15) is arranged on both sides of the hanging frame (1), and the flushing assembly (20) is arranged on the side wall of the liquid guide assembly (15); The filter assembly (3) comprises a filter box (4) and a porous titanium metal filter element (5); the filter box (4) is arranged on one side of the hanging frame (1), and the porous titanium metal filter element (5) is arranged inside the filter box (4); The liquid pumping assembly (6) includes a motor barrel (7), a small liquid ring vacuum pump (8) and a metal bellows telescopic tube (9), wherein the motor barrel (7) is arranged on the bottom wall of the filter box (4), the small liquid ring vacuum pump (8) is arranged inside the motor barrel (7), the liquid discharge end of the small liquid ring vacuum pump (8) is arranged through the inside of the filter box (4), and the metal bellows telescopic tube (9) is arranged through the motor barrel (7) at the liquid pumping end of the small liquid ring vacuum pump (8); The ground-facing component (10) includes a ground-facing earth cylinder (11), a liquid port (12), a spring (13), a protective shell (33), a protective shell (34), a ground-facing electromagnet (35) and a sinking magnet (36). The ground-facing earth cylinder (11) is connected to an end of the metal bellows telescopic tube (9) away from the small liquid ring vacuum pump (8), multiple groups of liquid ports (12) are provided on the side wall of the ground-facing earth cylinder (11), the spring (13) is provided between the ground-facing earth cylinder (11) and the motor cylinder (7) outside the metal bellows telescopic tube (9), the protective shell (33) is provided on the bottom wall of the motor cylinder (7) outside the spring (13), the protective shell (34) is provided on the upper wall of the ground-facing earth cylinder (11) outside the spring (13), the ground-facing electromagnet (35) is provided inside the protective shell (33), and the sinking magnet (36) is provided inside the protective shell (34).

2. The automatic lifting equipment for hot-dip galvanizing and pickling according to claim 1, characterized in that: The double-headed hanging clamp mechanism (24) comprises a hanging assembly (25) and a clamping assembly (28), wherein the hanging assembly (25) is arranged on the side walls of the hanging frame (1) and the filter assembly (3), and the clamping assembly (28) is arranged on a side of the hanging frame (1) away from the filter assembly (3).

3. The automatic lifting equipment for hot-dip galvanizing and pickling according to claim 2, characterized in that: The liquid guide assembly (15) includes a steering shaft (16), a second spring (17), a liquid separation sleeve (18), a second metal corrugated telescopic tube (19) and a steering plate (31). The steering plates (31) are symmetrically arranged on both sides of the hanging frame (1) in pairs. The steering shaft (16) is rotatably arranged between the steering plates (31). The liquid separation sleeve (18) is arranged outside the steering shaft (16). The second spring (17) is arranged between the liquid separation sleeve (18) outside the steering shaft (16) and the steering plate (31). The second metal corrugated telescopic tube (19) is connected and arranged between the filter box (4) and the liquid separation sleeve (18).

4. The automatic lifting equipment for hot-dip galvanizing and pickling according to claim 3, characterized in that: The flushing assembly (20) includes an arc tube (21), a flushing port (22) and a locking nut (23). Multiple groups of the arc tubes (21) are connected in sequence along the vertical direction and are arranged on the side wall of the liquid separation sleeve (18). Multiple groups of the flushing ports (22) are arranged on the side wall of the arc tube (21). The flushing ports (22) are normally arranged relative to each other. One end of the steering shaft (16) is passed through and arranged below the steering plate (31). The locking nut (23) is arranged on the outside of the steering shaft (16) below the steering plate (31). The locking nut (23) is threadedly connected to the steering shaft (16).

5. The automatic lifting equipment for hot-dip galvanizing and pickling according to claim 4, characterized in that: The hanging assembly (25) comprises a hanging ring 1 (26) and a hanging ring 2 (27), wherein the hanging ring 1 (26) is arranged on the top side wall of the hanging frame (1), and the hanging ring 2 (27) is arranged on the top side wall of the filter box (4).

6. The automatic lifting equipment for hot-dip galvanizing and pickling according to claim 5, characterized in that: The clamping assembly (28) includes a clamping bolt (29), a clamping plate (30) and a semicircular ring (32). The semicircular ring (32) is symmetrically arranged on the side of the hanging frame (1) away from the filter box (4). The clamping bolt (29) is symmetrically arranged on the side of the semicircular ring (32) away from the hanging frame (1). The clamping bolt (29) is penetrated and arranged inside the semicircular ring (32). The clamping bolt (29) is threadedly connected to the semicircular ring (32). The clamping plate (30) is rotatably arranged on the side of the clamping bolt (29) close to the semicircular ring (32).

7. The automatic lifting equipment for hot-dip galvanizing and pickling according to claim 6, characterized in that: The hanging frame (1), filter box (4), motor cylinder (7), metal corrugated telescopic tube (9), earth-contacting cylinder (11), spring (13), steering shaft (16), spring (2) (17), liquid separation sleeve (18), steering plate (31), arc tube (21), locking nut (23), lifting ring (26), lifting ring (27), clamping bolt (29), clamping plate (30), semicircular ring (32), small liquid ring vacuum pump (8) and protective shell (1) (33) and protective shell (2) (34) are all made of Hastelloy B-3.

Images