Hot galvanizing passivation pool

By employing counter-rotating stirring blades and baffle structures in the hot-dip galvanizing passivation bath, the problems of passivation liquid splashing and uneven agitation are solved, achieving uniform passivation and safety protection, and adapting to the processing needs of different workpieces.

CN223823700UActive Publication Date: 2026-01-23QINGDAO QINGCHUAN NEW MATERIALS CO LTD
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Patent Information

Application Number
CN202520047943.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-09
Publication Date
2026-01-23
Estimated Expiration
2035-01-09

AI Technical Summary

Technical Problem

In the hot-dip galvanizing passivation bath, the passivation solution is prone to splashing during the process, which poses a safety hazard. In addition, the agitation effect is poor, which affects the passivation effect and easily produces sediment.

Method used

A hot-dip galvanizing passivation tank was designed, which uses two stirring blades rotating in opposite directions, combined with a baffle structure to prevent the passivation liquid from splashing. The height of the baffle is adjusted by a positioning component to ensure uniform distribution of the passivation liquid and prevent the formation of precipitates.

Benefits of technology

It achieves uniform distribution of passivation fluid, avoids splashing, improves safety and passivation effect, prevents the formation of precipitates, and adapts to the processing needs of workpieces of different sizes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a hot-dip galvanizing passivation pool, which belongs to the technical field of hot-dip galvanizing processing and comprises a passivation pool, a first fence plate is fixed on the side surface of the top end of the passivation pool, a second fence plate is slidably connected in the first fence plate, and a positioning component is arranged between the first fence plate and the second fence plate. A plurality of stirring blades distributed at equal intervals are fixed to the side faces of the stirring rods, and a rotation driving assembly is arranged between the two stirring rods. The stirring blades on the two stirring rods are used for stirring a passivation solution in opposite directions, so that the passivation solution is more sufficiently and efficiently stirred, the extension length of the second surrounding baffle in the first surrounding baffle is adjusted through the positioning assembly, the shielding height can be adjusted, and when a large workpiece is subjected to passivation treatment, the working efficiency of the passivation solution is improved. And the shielding height can be increased so as to shield passivation liquid drops which drip from a large workpiece and are high in splashing height, the overall application range is effectively widened, and the overall practicability is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to hot galvanizing processing technical field especially is related to a hot galvanizing passivation pool. BACKGROUND

[0002] Passivation is the last process step in chemical cleaning, and is a key step, and the purpose is to prevent corrosion of the material; after pickling, water washing and rinsing of the boiler, the metal surface is very clean and very active, and is very easy to be corroded, so passivation treatment must be carried out immediately to form a protective film on the metal surface after cleaning to slow down corrosion; when passivation, the parts to be passivated are put into the passivation liquid, and the parts react with the passivation liquid to form a protective film on the surface.

[0003] When the hot galvanizing passivation pool is passivated, the passivation pool is provided with passivation liquid, the metal parts are directly put into the passivation liquid for passivation treatment, and the metal parts are taken out of the passivation pool after completion; the passivation liquid has certain corrosiveness, and when the metal parts are taken out of the passivation liquid, the residual passivation liquid on the surface of the metal parts often drips, and the dripping passivation liquid splashes when it contacts the passivation liquid in the passivation pool, and the splashing passivation liquid contacts the operator, which causes certain safety hazards to the operator; meanwhile, the passivation liquid in the existing passivation pool lacks stirring or one-way stirring, the stirring effect is not good, the passivation effect is affected, and precipitates are easily generated in the passivation liquid.

[0004] Therefore, it is necessary to provide a hot galvanizing passivation pool to solve the above technical problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a hot galvanizing passivation pool to solve the problems in the above background.

[0006] To achieve the above purpose, the utility model solves the above technical problems by the following scheme: a hot galvanizing passivation pool, comprising a passivation pool, a first surrounding baffle is fixed on the top end side of the passivation pool, a second sliding groove is formed in the first surrounding baffle, a second surrounding baffle is slidably connected in the second sliding groove, a positioning assembly is arranged between the first surrounding baffle and the second surrounding baffle, a driving motor is fixed on the outer side wall of the passivation pool, two stirring rods located in the passivation pool are rotatably connected on the side wall of the passivation pool, one end of the stirring rod is fixed with the output end of the driving motor, a plurality of equidistant stirring blades are fixed on the side surface of the stirring rod, and a driving rotation assembly is arranged between the two stirring rods.

[0007] As a further scheme of the utility model, the driving rotation assembly comprises a large gear and a small gear fixed on the end of the two stirring rods respectively, the large gear and the small gear are located on the same side end of the two stirring rods, the large gear and the small gear are meshed and connected, and the output shaft of the driving motor is fixed with one end of one of the stirring rods.

[0008] As a further scheme of the utility model, the positioning assembly comprises a first sliding groove formed on the side of the first enclosing plate, the side of the second enclosing plate is fixed with a clamping column which is slidably matched with the first sliding groove, the two sides of the first sliding groove are provided with pressing plates, the side of the pressing plate close to the clamping column is fixed with arc-shaped protrusions, the arc-shaped protrusions are provided with a plurality of arc-shaped protrusions which are equidistantly distributed.

[0009] As a further scheme of the utility model, the outer side wall of the first enclosing plate is fixed with two protruding plates which are respectively located on the side of the pressing plate away from the clamping column, a spring is arranged between the protruding plate and the pressing plate, and the two ends of the spring are respectively fixed with the side of the protruding plate and the side of the pressing plate.

[0010] As a further scheme of the utility model, the spring is provided with a plurality of springs which are equidistantly distributed.

[0011] As a further scheme of the utility model, the outer side wall of the second enclosing plate is fixed with a handle rod, the handle rod is provided with two handle rods which are symmetrically distributed.

[0012] As a further scheme of the utility model, the side of the stirring blade is provided with an arc surface, and a rubber sleeve is sleeved on the surface of the handle rod.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1. The stirring blades on the two stirring rods are reversely stirred to the passivation liquid in the passivation tank, so that the passivation liquid is uniformly distributed, the metal surface can uniformly contact the passivation liquid, and uniform passivation effect is obtained, and the stirring can prevent the formation of precipitates, maintain the stability and activity of the passivation liquid, and the stirring blades on the two stirring rods are reversely stirred to the passivation liquid, so that the generation of unidirectional rotation flow is effectively avoided, and the passivation liquid is more fully and efficiently stirred.

[0015] 2. The first enclosing plate and the second enclosing plate are arranged to shield the splashed passivation liquid, the passivation liquid slowly flows down along the side walls of the first enclosing plate and the second enclosing plate, and finally drops into the passivation tank, so that the safety of the operator is ensured.

[0016] 3. When passivation treatment is performed on workpieces of different sizes, the extension length of the second enclosing plate in the first enclosing plate is adjusted by the positioning assembly, so that the shielding height can be adjusted, when passivation treatment is performed on a larger workpiece, the shielding height can be adjusted to shield the passivation liquid drops with high splashing height which are dropped from the larger workpiece, so that the overall adaptability is effectively improved, and the overall practicability is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model is further described below in combination with the drawings and embodiments:

[0018] Figure 1 The overall structure of the utility model is shown in the figure Figure 1 ;

[0019] Figure 2 The structure of A in the middle is shown in the figure Figure 1 ;

[0020] Figure 3 The overall structure of the utility model is shown in the figure Figure 2 ;

[0021] Figure 4 The internal structure of the passivation tank of the utility model is shown in the figure

[0022] Figure 5 The structure of the stirring rod and stirring blade of the utility model is shown in the figure.

[0023] In the drawings, the components represented by each reference numeral are listed as follows:

[0024] 1, drive assembly; 101, large gear; 102, small gear; 2, positioning assembly; 201, protruding plate; 202, spring; 203, pressing plate; 204, arc-shaped protruding block; 205, clamping column; 206, first sliding groove; 3, passivation tank; 4, driving motor; 5, first enclosing baffle; 6, second enclosing baffle; 7, handle rod; 8, stirring rod; 9, stirring blade; 10, second sliding groove. DETAILED DESCRIPTION

[0025] The utility model is further described below in combination with the drawings and embodiments.

[0026] Please refer to Figures 1-5The utility model provides a kind of hot galvanizing passivation pool, including passivation pool 3, first enclosure baffle 5 is fixed on the top end side surface of passivation pool 3, second chute 10 is opened in first enclosure baffle 5 inside, second enclosure baffle 6 is slidably connected in second chute 10, positioning assembly 2 is arranged between first enclosure baffle 5 and second enclosure baffle 6, driving motor 4 is fixed on the outer side wall of passivation pool 3, two stirring rods 8 located in the inside of passivation pool 3 are rotatably connected on the side wall of passivation pool 3, one end of stirring rod 8 is fixed with the output end of driving motor 4, a plurality of equidistant distribution stirring vanes 9 are fixed on the side surface of stirring rod 8, driving assembly 1 is arranged between two stirring rods 8;When using, start driving motor 4 to work, one of stirring rod 8 is driven to rotate by the output end of driving motor 4, two stirring rods 8 are driven to rotate reversely by driving assembly 1, so that the passivation liquid in passivation pool 3 is stirred reversely by stirring vane 9 on two stirring rods 8, so as to ensure that passivation liquid is evenly distributed, so that metal surface can be evenly contacted with passivation liquid, so as to obtain uniform passivation effect, and stirring can prevent the formation of precipitate, maintain the stability and activity of passivation liquid, passivation liquid is stirred reversely by stirring vane 9 on two stirring rods 8, so that the generation of unidirectional cyclone is effectively avoided, so that passivation liquid is more fully and efficiently stirred;The passivation liquid that splashes is shielded by the first enclosure baffle 5 and the second enclosure baffle 6, and the passivation liquid slowly flows down along the side wall of the first enclosure baffle 5 and the second enclosure baffle 6, and finally drops into the inside of passivation pool, ensuring the safety of operator, when passivating different size workpieces, the extension length of second enclosure baffle 6 in first enclosure baffle 5 is adjusted by positioning assembly 2, so that shielding height can be adjusted, when passivating larger workpieces, shielding height can be adjusted to shield the passivation liquid drops with high splashing height dropped from larger workpieces, effectively improve overall adaptability, improve overall practicability.

[0027] Further as Figure 3 And Figure 4As shown, it is worth noting that the drive assembly 1 comprises a large gear 101 and a small gear 102 fixed on the ends of the two stirring rods 8, the large gear 101 and the small gear 102 are located on the same side of the two stirring rods 8, the large gear 101 and the small gear 102 are meshed, and one end of one of the stirring rods 8 is fixed with the output shaft of the driving motor 4; In particular, during operation, one of the stirring rods 8 is driven to rotate by the output end of the driving motor 4, thereby driving the two stirring rods 8 to rotate in opposite directions through the cooperation of the large gear 101 and the small gear 102, thereby stirring the passivation liquid in the passivation tank 3 through the stirring blades 9 on the two stirring rods 8, thereby ensuring uniform distribution of the passivation liquid, so that the metal surface can uniformly contact the passivation liquid, thereby obtaining uniform passivation effect, and the stirring can prevent the formation of precipitates, maintain the stability and activity of the passivation liquid, and the stirring blades 9 on the two stirring rods 8 are stirred in opposite directions, thereby effectively avoiding the generation of unidirectional rotation, so that the passivation liquid is more fully and efficiently stirred, and the two stirring rods 8 are driven at different speeds through the cooperation of the large gear 101 and the small gear 102, forming differential stirring liquid, further improving the stirring effect.

[0028] Further as shown in Figure 1 、 Figure 2 and Figure 3 , it is worth noting that the positioning assembly 2 comprises a first sliding groove 206 opened on the side of the first enclosing plate 5, and the side of the second enclosing plate 6 is fixed with a clamping column 205 which is slidingly matched with the first sliding groove 206, both sides of the first sliding groove 206 are provided with a pressing plate 203, the side of the pressing plate 203 close to the clamping column 205 is fixed with an arc-shaped protrusion 204, the arc-shaped protrusion 204 is provided with a plurality of arc-shaped protrusions 204 which are equidistantly distributed, the outer side wall of the first enclosing plate 5 is fixed with two protruding plates 201 which are located on the side of the pressing plate 203 away from the clamping column 205, a spring 202 is arranged between the protruding plate 201 and the pressing plate 203, and the two ends of the spring 202 are fixed with the side of the protruding plate 201 and the side of the pressing plate 203 respectively; When passivating different sizes of workpieces, the second enclosing plate 6 is directly pulled to drive the clamping column 205 to slide in the first sliding groove 206, so that the clamping column 205 is clamped between different arc-shaped protrusions 204, thereby adjusting the protruding length of the second enclosing plate 6 in the first enclosing plate 5, so as to adjust the shielding height, and when passivating larger workpieces, the shielding height can be adjusted to shield the passivation liquid droplets with high dripping and splashing height from the larger workpieces, effectively improving the overall adaptability and improving the overall practicality.

[0029] The scheme has the following working process: when in use, the driving motor 4 is started to work, one of the stirring rods 8 is driven to rotate through the output end of the driving motor 4, the two stirring rods 8 are driven to rotate in opposite directions through the cooperation of the large gear 101 and the small gear 102, so that the passivation liquid in the passivation tank 3 is stirred in opposite directions through the stirring blades 9 on the two stirring rods 8, thereby ensuring uniform distribution of the passivation liquid, so that the metal surface can uniformly contact the passivation liquid, thereby obtaining uniform passivation effect. The first baffle plate 5 and the second baffle plate 6 are arranged to shield the splashed passivation liquid, the passivation liquid slowly flows down along the side walls of the first baffle plate 5 and the second baffle plate 6, and finally drops into the passivation tank. When passivating different sizes of workpieces, the second baffle plate 6 is directly pulled, the clamping column 205 is driven to slide in the first sliding groove 206, so that the clamping column 205 is clamped between different arc-shaped protrusions 204, thereby adjusting the extension length of the second baffle plate 6 in the first baffle plate 5, so that the shielding height can be adjusted. When passivating larger workpieces, the shielding height can be adjusted to shield the passivation liquid droplets with high splashing height that drop from the larger workpieces, thereby achieving better shielding protection.

[0030] Further as shown in Figure 2 , it is worth noting that the spring 202 is provided with a plurality of springs 202 which are equidistantly distributed; in specific work, the second baffle plate 6 is stably clamped by the plurality of springs 202 arranged, thereby improving the limiting stability of the second baffle plate 6.

[0031] Further as shown in Figure 1 , Figure 3 and Figure 4 , it is worth noting that the outer side wall of the second baffle plate 6 is fixed with a handle rod 7, and the handle rod 7 is provided with two handle rods 7 which are symmetrically distributed; in specific work, the second baffle plate 6 is conveniently pulled by the two handle rods 7 arranged, thereby facilitating operation.

[0032] Further as shown in Figure 4 and Figure 5 , it is worth noting that the side surface of the stirring blade 9 is arc-shaped, and the surface of the handle rod 7 is fitted with a rubber sleeve; in specific work, the stirring blade 9 with an arc-shaped surface has a larger contact area with the liquid, thereby further improving the stirring effect of the passivation liquid.

[0033] In summary: the drive assembly 1 drives two stirring rods 8 to rotate in opposite directions, thereby stirring the passivation liquid in the passivation tank 3 through the stirring blades 9 on the two stirring rods 8 in opposite directions, thereby ensuring uniform distribution of the passivation liquid, so that the metal surface can uniformly contact the passivation liquid, thereby obtaining uniform passivation effect, and stirring can prevent the formation of precipitates, maintain the stability and activity of the passivation liquid, and the stirring blades 9 on the two stirring rods 8 stir the passivation liquid in opposite directions, thereby effectively avoiding the generation of unidirectional vortex, so that the passivation liquid is more fully and efficiently stirred; the first baffle 5 and the second baffle 6 are arranged to shield the splashed passivation liquid, the passivation liquid slowly flows down along the side wall of the first baffle 5 and the second baffle 6, and finally drops into the passivation tank through the liquid flow hole, thereby ensuring the safety of the operator, and when passivating different sizes of workpieces, the positioning assembly 2 adjusts the extension length of the second baffle 6 in the first baffle 5, thereby adjusting the shielding height, and when passivating larger workpieces, the shielding height can be adjusted to shield the passivation liquid droplets with high splashing height that fall from the larger workpieces, thereby effectively improving the overall adaptability and improving the overall practicality.

[0034] The drive motor 4 can be purchased on the market, and the drive motor 4 is provided with a power supply, which belongs to mature technology in the field and has been fully disclosed, so the specification will not be repeated.

Claims

1. A hot-dip galvanizing passivation bath, comprising a passivation bath, characterized in that, A first baffle plate is fixed to the top side of the passivation tank. A second groove is opened inside the first baffle plate, and a second baffle plate is slidably connected in the second groove. A positioning component is provided between the first baffle plate and the second baffle plate. A drive motor is fixed to the outer wall of the passivation tank. Two stirring rods located inside the passivation tank are rotatably connected to the side wall of the passivation tank. One end of the stirring rod is fixed to the output end of the drive motor. Multiple stirring blades are fixed on the side of the stirring rod in an equidistant distribution. A drive rotation component is provided between the two stirring rods.

2. The hot-dip galvanizing passivation bath according to claim 1, characterized in that, The drive assembly includes a large gear and a small gear fixed to the ends of two stirring rods respectively. The large gear and the small gear are located on the same side of the two stirring rods and are meshed together. The output shaft of the drive motor is fixed to one end of one of the stirring rods.

3. The hot-dip galvanizing passivation bath according to claim 1, characterized in that, The positioning component includes a first sliding groove formed on the side of the first enclosure plate, and a locking post fixed on the side of the second enclosure plate that is slidably adapted to the first sliding groove. Pressure plates are provided on both sides of the first sliding groove, and arc-shaped protrusions are fixed on the side of the pressure plates near the locking post. Multiple arc-shaped protrusions are provided and the multiple arc-shaped protrusions are equidistantly distributed.

4. The hot-dip galvanizing passivation bath according to claim 3, characterized in that, Two protruding plates are fixed on the outer side wall of the first enclosure plate, respectively located on the side of the pressure plate away from the clamping post. A spring is provided between the protruding plate and the pressure plate, and the two ends of the spring are fixed to the side of the protruding plate and the side of the pressure plate, respectively.

5. The hot-dip galvanizing passivation bath according to claim 4, characterized in that, The spring is provided in multiple parts, and the multiple springs are distributed at equal intervals.

6. The hot-dip galvanizing passivation bath according to claim 1, characterized in that, A handle bar is fixed on the outer wall of the second enclosure. There are two handle bars, and the two handle bars are symmetrically distributed.

7. The hot-dip galvanizing passivation bath according to claim 6, characterized in that, The sides of the stirring blades are curved, and the surface of the handle is fitted with a rubber sleeve.