A high-efficiency fluxing device for hot-dip galvanizing process

Abstract

This utility model relates to the field of flux addition technology in hot-dip galvanizing processes, and discloses a high-efficiency flux addition device for hot-dip galvanizing processes, including a storage tank and a base. This device stores the flux in the storage tank, and the flux flows out through a bottom delivery pipe using gravity and a metering pump. An inlet valve assembly and an outlet valve assembly control the flow direction and on / off of the flux. A flow sensor monitors the flux flow rate in the pipe in real time, and the data is fed back to the controller, forming a closed-loop control system. The controller receives the flow sensor signal and, combined with preset parameters, adjusts the metering pump speed to precisely control the flux output. An electric screw drive drives the mounting base to slide, and, in conjunction with a fixed valve, adjusts the nozzle height and angle to adapt to different workpiece specifications, ensuring uniform flux coverage. This achieves the effect of facilitating precise control of the flux addition amount, adapting to diverse production needs, and reducing the impact on hot-dip galvanized product quality and production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of flux addition technology in hot-dip galvanizing process, specifically to a high-efficiency flux addition device for hot-dip galvanizing process. Background Technology

[0002] In the hot-dip galvanizing process, the fluxing step is a crucial preliminary step to ensure galvanizing quality. Its function is to remove residual iron salts, oxides, and other impurities from the workpiece surface after pickling, and to form a protective salt film on the workpiece surface. This film isolates the workpiece from air, prevents micro-oxidation, and lays the foundation for the formation of a complete Zn-Fe alloy layer in subsequent hot-dip galvanizing. Currently, most companies use a composite salt solution of "zinc chloride + ammonium chloride" as the fluxing solution due to its advantages such as high efficiency and ease of operation. However, existing fluxing agent addition devices have several drawbacks. On the one hand, it is difficult to accurately control the amount of flux added. Adding too much not only wastes flux and increases production costs, but excess flux may also interfere with the subsequent galvanizing reaction, affecting the quality of the galvanized layer. Adding too little flux will not fully utilize its effectiveness, resulting in insufficient fluxing on the workpiece surface, easily leading to defects such as missed galvanizing and uneven coating thickness during hot-dip galvanizing. On the other hand, uneven dispersion of the flux during the addition process leads to differences in fluxing effects in different parts of the workpiece, seriously affecting the stability and consistency of the hot-dip galvanized product quality.

[0003] The existing technology faces the challenge of accurately controlling the amount of flux added and being unable to flexibly adapt to diverse production needs, which leads to problems affecting the quality of hot-dip galvanized products and production efficiency. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a high-efficiency flux addition device for hot-dip galvanizing processes, thereby solving the problems mentioned in the background section regarding the difficulty in accurately controlling the amount of flux added and the inability to flexibly adapt to diverse production needs, which leads to issues affecting the quality and production efficiency of hot-dip galvanized products.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency fluxing agent addition device for hot-dip galvanizing process, comprising a storage tank and a base. A conveying pipe is connected to the bottom of the storage tank. A controller, an electric lead screw frame, and a metering pump are mounted on the outer surface of the base. An inlet valve assembly and an outlet valve assembly are mounted at the output end of the metering pump. The inlet valve assembly is connected to the end of the conveying pipe near the storage tank, and the outlet valve assembly is connected to the end of the conveying pipe near the electric lead screw frame. A flow sensor is mounted on the outer surface of the conveying pipe near the electric lead screw frame and the outlet valve assembly. Several wires are mounted at the output end of the controller, and the controller is electrically connected to the electric lead screw frame, the metering pump, and the flow sensor via these wires. A mounting base is slidably connected to the outer surface of the electric lead screw frame, and a nozzle is rotatably connected to the outer surface of the mounting base. A fixing valve is mounted on the outer surface of the mounting base, and the nozzle is fixedly connected to the mounting base via the fixing valve.

[0006] Preferably, the outer surface of the storage tank is provided with a tank cover, the outer surface of the tank cover is provided with a servo motor, the output end of the servo motor is fixedly installed with a main gear plate, the outer surface of the main gear plate is meshed with four auxiliary gear plates, the outer surface of each of the four auxiliary gear plates is fixedly installed with a second connecting roller, the outer surface of the main gear plate is fixedly installed with a first connecting roller, the outer surfaces of the first and second connecting rollers are fixedly installed with a plurality of mixing paddles, the outer surface of the first connecting roller is fixedly installed with a scraper, and the scraper is rotatably connected to the inner wall of the storage tank.

[0007] Preferably, the liquid storage tank is made of a corrosion-resistant and rust-proof material, and the liquid storage tank is cylindrical funnel-shaped, the four auxiliary gear discs are arranged in a circumferential array, and the plurality of mixing paddles are arranged in an alternating array.

[0008] Preferably, the metering pump is composed of a motor, a belt, an eccentric wheel, a main piston, and a pump body. The motor is connected to the eccentric wheel via the belt, and the eccentric wheel drives the piston to reciprocate within the pump head.

[0009] Preferably, the electric lead screw frame is composed of a drive motor, a fixed frame, a lead screw and a sliding member, the sliding member is fixedly connected to the mounting base, and the electric lead screw frame is set at a 90-degree angle to the machine base.

[0010] Preferably, the liquid storage tank is fixedly connected to the base, a push handle is fixedly installed on the outer surface of the base, a caster wheel is fixedly installed on the bottom of the base, and a brake structure is provided on the outer surface of the caster wheel.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This hot-dip galvanizing process uses a high-efficiency flux addition device. The flux is stored in a storage tank and flows out through a bottom delivery pipe by gravity and a metering pump. The inlet valve assembly and outlet valve assembly control the on / off and flow direction of the flux. A flow sensor monitors the flux flow rate in the pipe in real time, and the data is fed back to the controller to form a closed-loop control system. The controller receives the flow sensor signal and, in combination with preset parameters, adjusts the metering pump speed to precisely control the flux output. The electric screw drive drives the mounting base to slide, and, in conjunction with the fixed valve, adjusts the nozzle height and angle to adapt to different workpiece specifications, ensuring uniform flux coverage. This achieves the effect of facilitating precise control of the flux addition amount, adapting to diverse production needs, and reducing the impact on the quality of hot-dip galvanized products and production efficiency.

[0013] 2. This hot-dip galvanizing process uses a high-efficiency flux addition device. The main gear disk is driven to rotate by a servo motor, and the main gear meshes to drive the four auxiliary gear disks to rotate synchronously, forming a multi-point drive structure. This allows the No. 1 connecting roller and the No. 2 connecting roller to drive the mixing paddle at a stable and balanced speed, so as to carry out all-round and dead-angle stirring of the flux in the storage tank. Multi-axis synchronous stirring can quickly break up the stratification and precipitation of the flux, and ensure that the concentration of components such as zinc chloride and ammonium chloride in the flux is uniform. This provides a guarantee for the formation of a uniform salt film on the surface of the workpiece, thereby achieving the effect of significantly improving the consistency of the hot-dip galvanized layer quality. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;

[0015] Figure 2 This is a side sectional view of the structure of this utility model;

[0016] Figure 3 This is a front sectional view of the structure of this utility model;

[0017] Figure 4 This is a top sectional view of the structure of this utility model.

[0018] In the diagram: 1. Storage tank; 2. Base; 3. Controller; 4. Delivery pipeline; 5. Metering pump; 6. Inlet valve assembly; 7. Outlet valve assembly; 8. Flow sensor; 9. Electric lead screw frame; 10. Mounting base; 11. Fixed valve; 12. Nozzle; 13. Tank cover; 14. Servo motor; 15. Main gear plate; 16. Secondary gear plate; 17. Connecting roller No. 1; 18. Connecting roller No. 2; 19. Mixing paddle; 20. Scraper; 21. Caster wheel; 22. Push handle. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0020] Please refer to Figures 1-4.

[0021] A high-efficiency fluxing agent addition device for hot-dip galvanizing process includes a storage tank 1 and a base 2. The bottom of the storage tank 1 is connected to a conveying pipe 4. The outer surface of the base 2 is equipped with a controller 3, an electric lead screw frame 9, and a metering pump 5. The output end of the metering pump 5 is equipped with an inlet valve assembly 6 and an outlet valve assembly 7. The inlet valve assembly 6 is connected to the end of the conveying pipe 4 near the storage tank 1, and the outlet valve assembly 7 is connected to the end of the conveying pipe 4 near the electric lead screw frame 9. The outer surface of the conveying pipe 4 near the electric lead screw frame 9 and the outlet valve assembly 7 is equipped with a flow sensor 8. The output end of the controller 3 is equipped with several wires. The controller 3 is electrically connected to the electric lead screw frame 9, the metering pump 5, and the flow sensor 8 through several wires. The outer surface of the electric lead screw frame 9 is slidably connected to a mounting base 10. The outer surface of the mounting base 10 is rotatably connected to a nozzle 12. The outer surface of the mounting base 10 is equipped with a fixing valve 11. The nozzle 12 is fixedly connected to the mounting base 10 through the fixing valve 11.

[0022] Specifically, the flux is stored in the storage tank 1. Relying on gravity and the power of the metering pump 5, the flux flows out through the bottom delivery pipe 4. The inlet valve assembly 6 and the outlet valve assembly 7 control the on / off and flow direction of the delivery. The flow sensor 8 monitors the flux flow rate in the pipe in real time, and the data is fed back to the controller 3 to form a closed-loop control system. The controller 3 receives the signal from the flow sensor 8 and, in combination with preset parameters, adjusts the speed of the metering pump 5 to precisely control the output of the flux. The electric screw frame 9 drives the mounting base 10 to slide, and, in conjunction with the fixed valve 11, adjusts the height and angle of the nozzle 12 to adapt to different workpiece specifications, ensuring uniform coverage of the flux. This achieves the effect of facilitating precise control of the amount of flux added, adapting to diverse production needs, and reducing the impact on the quality and production efficiency of hot-dip galvanized products.

[0023] In this embodiment, the metering pump 5 is composed of a motor, belt, eccentric wheel, plunger and pump body. The motor is connected to the eccentric wheel via the belt, and the eccentric wheel drives the plunger to reciprocate within the pump head.

[0024] Specifically, the metering pump 5 is composed of a motor, belt, eccentric wheel, main piston, and pump body. The motor is connected to the eccentric wheel via a belt, and the eccentric wheel drives the piston to reciprocate within the pump head. The motor serves as the power source for starting and operating the pump, and the power is transmitted to the eccentric wheel via belt transmission. The eccentric wheel utilizes its eccentric structure to convert circular motion into reciprocating linear motion of the piston during rotation. When the eccentric wheel rotates and causes the piston to move backward, a negative pressure is created within the pump head, drawing in the flux under the pressure difference. When the piston moves forward, the pressure within the pump head increases, forcing out the flux, thus achieving flux delivery. Combined with other components of the device, this completes the hot-dip galvanizing flux addition process.

[0025] In the embodiment: the electric lead screw frame 9 is made of a combination of a drive motor, a fixed frame, a lead screw and a slider. The slider is fixedly connected to the mounting base 10. The electric lead screw frame 9 is set at an angle of 90 degrees to the base 2.

[0026] Specifically, because the electric lead screw frame 9 is made of a combination of a drive motor, a fixed frame, a lead screw and a slider, and the slider is fixedly connected to the mounting base 10, the electric lead screw frame 9 is set at an angle of 90 degrees to the base 2, the drive motor can precisely control the number of rotations and speed of the lead screw, and with the help of the threaded transmission between the lead screw and the slider, the rotational motion of the motor is converted into a stable and precise linear displacement of the slider.

[0027] In this embodiment: the storage tank 1 is fixedly connected to the base 2. A push handle 22 is fixedly installed on the outer surface of the base 2, and a caster wheel 21 is fixedly installed on the bottom of the base 2. The outer surface of the caster wheel 21 is provided with a braking structure to control the push handle 22. The installation of the caster wheel 21 allows the flux addition device to move freely on the floor of the hot-dip galvanizing workshop, with flexible directional adjustment. Whether transferring between different production lines or adjusting the position within the same production line according to work requirements, it can be done quickly and conveniently. The braking structure can effectively lock the caster wheel 21 after the device moves to the designated position, preventing the device from moving accidentally due to external force during operation, ensuring the device's fixed position during operation, and ensuring the accuracy and stability of flux addition. This improves the versatility and applicability of the equipment.

[0028] Specifically, since the liquid storage tank 1 is fixedly connected to the base 2, and a push handle 22 is fixedly installed on the outer surface of the base 2, and a caster wheel 21 is fixedly installed at the bottom of the base 2, and a brake structure is provided on the outer surface of the caster wheel 21,

[0029] Working principle: A conveying pipe 4 is connected to the bottom of the storage tank 1. A controller 3, an electric screw frame 9, and a metering pump 5 are mounted on the outer surface of the base 2. An inlet valve assembly 6 and an outlet valve assembly 7 are mounted at the output end of the metering pump 5. The inlet valve assembly 6 is connected to the end of the conveying pipe 4 near the storage tank 1, and the outlet valve assembly 7 is connected to the end of the conveying pipe 4 near the electric screw frame 9. A flow sensor 8 is mounted on the outer surface of the conveying pipe 4 near the electric screw frame 9 and the outlet valve assembly 7. Furthermore, because the controller... The output end of controller 3 is equipped with several wires. Controller 3 is electrically connected to the electric lead screw frame 9, metering pump 5, and flow sensor 8 via these wires. A mounting base 10 is slidably connected to the outer surface of the electric lead screw frame 9. A nozzle 12 is rotatably connected to the outer surface of the mounting base 10. A fixing valve 11 is provided on the outer surface of the mounting base 10. The nozzle 12 is fixedly connected to the mounting base 10 via the fixing valve 11. The storage tank 1 stores the flux. Driven by gravity and the power of the metering pump 5, the flux flows out through the bottom delivery pipe 4. Valve assembly 6 and outlet valve assembly 7 control the on / off and flow direction of the conveying process. Flow sensor 8 monitors the flow rate of flux in the pipeline in real time and feeds the data back to controller 3 to form a closed-loop control system. Controller 3 receives the signal from flow sensor 8 and, in combination with preset parameters, adjusts the speed of metering pump 5 to precisely control the output of flux. Electric screw bracket 9 drives mounting base 10 to slide, and, in conjunction with fixed valve 11, adjusts the height and angle of nozzle 12 to adapt to different workpiece specifications and ensure uniform flux coverage. Controller 3 is an existing structure, and the control circuit can be implemented by those skilled in the art through simple programming. It is common knowledge in the field and is only used without modification. Therefore, the control method and circuit connection will not be described in detail. This facilitates centralized control and operation of the relevant structures. Compared with related technologies, the high-efficiency flux addition device for hot-dip galvanizing process provided by this utility model has the following beneficial effects: it facilitates precise control of flux addition, adapts to diverse production needs, and reduces the impact on hot-dip galvanized product quality and production efficiency. Example

[0030] Please refer to Figures 1-4.

[0031] The outer surface of the storage tank 1 is provided with a tank cover 13. A servo motor 14 is provided on the outer surface of the tank cover 13. A main gear disk 15 is fixedly installed at the output end of the servo motor 14. Four auxiliary gear disks 16 are meshed and connected to the outer surface of the main gear disk 15. A second connecting roller 18 is fixedly installed on the outer surface of each of the four auxiliary gear disks 16. A first connecting roller 17 is fixedly installed on the outer surface of the main gear disk 15. Several mixing paddles 19 are fixedly installed on the outer surfaces of the first connecting roller 17 and the second connecting roller 18. A scraper 20 is fixedly installed on the outer surface of the first connecting roller 17. The scraper 20 is rotatably connected to the inner wall of the storage tank 1.

[0032] Specifically, the main gear disk 15 is driven to rotate by the servo motor 14, and the main gear meshes to drive the four auxiliary gear disks 16 to rotate synchronously, forming a multi-point drive structure. This allows the first connecting roller 17 and the second connecting roller 18 to drive the mixing paddle 19 to work at a stable and balanced speed, so as to stir the flux in the storage tank 1 in all directions without dead angles. The multi-axis synchronous stirring can quickly break the layering and precipitation of the flux, and ensure that the concentration of components such as zinc chloride and ammonium chloride in the flux is uniform, which provides a guarantee for the formation of a uniform salt film on the surface of the workpiece, thereby achieving the effect of significantly improving the consistency of hot-dip galvanized layer quality.

[0033] In the embodiment: the liquid storage tank 1 is made of corrosion-resistant and rust-proof material, and the liquid storage tank 1 is cylindrical funnel-shaped, the four auxiliary gear disks 16 are arranged in a circumferential array, and the several mixing paddles 19 are arranged in an alternating array.

[0034] Specifically, because the storage tank 1 is made of corrosion-resistant and rust-proof material, such as special stainless steel or high-performance engineering plastics, it can effectively resist the chemical corrosion of the flux and avoid damage such as perforation and leakage of the tank body. Moreover, the storage tank 1 is cylindrical and funnel-shaped, which is conducive to the uniform stirring of the flux by the mixing paddle 19, forming a stable circulation and ensuring that the flux components are fully mixed. In addition, the four auxiliary gear disks 16 are arranged in a circumferential array, and the several mixing paddles 19 are arranged in a staggered array. With the drive of the main gear disk 15, the first connecting roller 17 and the second connecting roller 18 can drive the mixing paddles. The paddles 19 form multiple stirring centers within the storage tank 1. This arrangement allows for stirring of the flux from different directions, avoiding dead zones and ensuring that the flux is fully mixed in all areas, thus improving mixing uniformity. The staggered array of mixing paddles 19 prevents the flux from forming unidirectional eddies during stirring, preventing blind spots of insufficient mixing in certain areas. Through multi-angle and multi-layer stirring, the flux within the storage tank 1 is fully covered, ensuring that each part of the flux is fully stirred and mixed, improving the effectiveness of the flux and thereby enhancing the quality stability of hot-dip galvanized products.

[0035] Working principle: A lid 13 is provided on the outer surface of the storage tank 1. The lid 13 provides a good sealing environment for the storage tank 1, effectively preventing the evaporation of the flux and the entry of external dust and impurities, avoiding deterioration of the flux components due to oxidation and contamination, and ensuring stable fluxing effect. At the same time, a servo motor 14 is provided on the outer surface of the lid 13. A main gear disk 15 is fixedly installed at the output end of the servo motor 14. Four auxiliary gear disks 16 are meshed on the outer surface of the main gear disk 15. A second connecting roller 18 is fixedly installed on the outer surface of each of the four auxiliary gear disks 16. A first connecting roller 17 is fixedly installed on the outer surface of the main gear disk 15. Several mixing paddles 19 are fixedly installed on the outer surfaces of the first connecting roller 17 and the second connecting roller 18. The servo motor 14 drives the main gear disk 15 to rotate, and the main gear meshes with the four auxiliary gear disks. The disk 16 rotates synchronously, forming a multi-point drive structure, which enables the first connecting roller 17 and the second connecting roller 18 to drive the mixing paddle 19 at a stable and balanced speed. This allows for all-round, dead-angle-free stirring of the flux in the storage tank 1. Multi-axis synchronous stirring can quickly break up the layering and sedimentation of the flux, ensuring uniform concentration of components such as zinc chloride and ammonium chloride in the flux, thus guaranteeing the formation of a uniform salt film on the workpiece surface. In addition, a scraper 20 is fixedly installed on the outer surface of the first connecting roller 17. The scraper 20 is rotatably connected to the inner wall of the storage tank 1. During the stirring process, it simultaneously scrapes off the residual flux on the tank wall. This prevents the flux from drying and forming hard lumps on the tank wall, avoiding hard lumps falling off and mixing into the flux to block the pipes and nozzles 12. On the other hand, it reduces the corrosion of the tank wall by the residual flux and extends the service life of the storage tank 1. For example, after long-term use, residual flux on the tank wall is prone to crystallization. Continuous cleaning by scraper 20 can reduce the frequency and cost of equipment maintenance. Compared with related technologies, the high-efficiency flux addition device for hot-dip galvanizing process provided by this utility model has the following beneficial effects: thereby achieving the effect of significantly improving the consistency of hot-dip galvanized layer quality.

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

Claims

1. A high-efficiency fluxing device for hot-dip galvanizing process, comprising a storage tank (1) and a base (2), characterized in that: The bottom of the storage tank (1) is connected to a conveying pipe (4). The outer surface of the base (2) is provided with a controller (3), an electric screw frame (9), and a metering pump (5). The output end of the metering pump (5) is provided with an inlet valve assembly (6) and an outlet valve assembly (7). The inlet valve assembly (6) is connected to the end of the conveying pipe (4) near the storage tank (1), and the outlet valve assembly (7) is connected to the end of the conveying pipe (4) near the electric screw frame (9). The outer surface of the conveying pipe (4) near the electric screw frame (9) and the outlet valve assembly (7) A flow sensor (8) is provided on the surface. Several wires are provided at the output end of the controller (3). The controller (3) is electrically connected to the electric screw frame (9), the metering pump (5) and the flow sensor (8) respectively through the several wires. A mounting base (10) is slidably connected to the outer surface of the electric screw frame (9). A nozzle (12) is rotatably connected to the outer surface of the mounting base (10). A fixed valve (11) is provided on the outer surface of the mounting base (10). The nozzle (12) is fixedly connected to the mounting base (10) through the fixed valve (11).

2. The high-efficiency fluxing device for hot-dip galvanizing process according to claim 1, characterized in that: The outer surface of the storage tank (1) is provided with a tank cover (13), and the outer surface of the tank cover (13) is provided with a servo motor (14). The output end of the servo motor (14) is fixedly installed with a main gear disk (15). The outer surface of the main gear disk (15) is meshed with four auxiliary gear disks (16). The outer surfaces of the four auxiliary gear disks (16) are all fixedly installed with a second connecting roller (18). The outer surface of the main gear disk (15) is fixedly installed with a first connecting roller (17). The outer surfaces of the first connecting roller (17) and the second connecting roller (18) are all fixedly installed with several mixing paddles (19). The outer surface of the first connecting roller (17) is fixedly installed with a scraper (20). The scraper (20) is rotatably connected to the inner wall of the storage tank (1).

3. The high-efficiency fluxing device for hot-dip galvanizing process according to claim 2, characterized in that: The liquid storage tank (1) is made of corrosion-resistant and rust-proof material, and the liquid storage tank (1) is cylindrical funnel-shaped. The four auxiliary gear discs (16) are arranged in a circumferential array, and the several mixing paddles (19) are arranged in an alternating array.

4. The high-efficiency fluxing device for hot-dip galvanizing process according to claim 1, characterized in that: The metering pump (5) consists of a motor, belt, eccentric wheel, plunger and pump body. The motor is connected to the eccentric wheel via the belt, and the eccentric wheel drives the plunger to reciprocate within the pump head.

5. The high-efficiency fluxing device for hot-dip galvanizing process according to claim 1, characterized in that: The electric lead screw frame (9) is made of a combination of a drive motor, a fixed frame, a lead screw and a sliding component. The sliding component is fixedly connected to the mounting base (10). The electric lead screw frame (9) is set at an angle of 90 degrees to the machine base (2).

6. The high-efficiency fluxing device for hot-dip galvanizing process according to claim 1, characterized in that: The liquid storage tank (1) is fixedly connected to the base (2). A push handle (22) is fixedly installed on the outer surface of the base (2). A caster wheel (21) is fixedly installed at the bottom of the base (2). A brake structure is provided on the outer surface of the caster wheel (21).

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