Plating assistant liquid heating equipment for hot-dip galvanizing

Abstract

The utility model relates to the technical field of heating equipment, in particular to plating assisting liquid heating equipment for hot-dip galvanizing, which comprises a processing box body, a lifting plating assisting mechanism for heating and preserving heat of plating assisting liquid is arranged on the processing box body, and an automatic liquid supplementing mechanism is arranged in the processing box body. The lifting plating-assisting mechanism comprises a stirring support movably installed in the plating-assisting tank, and a heating inner container used for heating plating-assisting liquid is arranged on the inner wall of the plating-assisting tank. According to the utility model, by arranging the lifting plating assisting mechanism and the automatic liquid supplementing mechanism, and by virtue of the spiral surrounding design and the heat conduction characteristic of the spiral inner pipe, heat energy in the plating assisting tank can be conducted into newly supplemented plating assisting liquid in real time, so that a liquid inlet preheating function is realized, and the temperature of the supplemented liquid can be increased to more than 50 DEG C (only 20-25 DEG C is directly supplemented in the prior art); the follow-up temperature rise energy consumption of the heating inner container can be effectively reduced, temperature fluctuation in the groove caused by cold liquid injection can be avoided, and the quality consistency of a plating layer can be remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of heating equipment technology, and in particular to heating equipment for hot-dip galvanizing flux. Background Technology

[0002] In the hot-dip galvanizing process, the fluxing step (also known as flux treatment or fluxing agent treatment) is a key pretreatment step before galvanizing. Its purpose is to ensure that the surface of the steel part has high cleanliness and activity before immersion in the zinc liquid, thereby promoting good bonding between the zinc layer and the substrate. In the fluxing step, heating equipment is needed to continuously heat the flux (usually zinc ammonium chloride solution) to keep the flux at a working temperature of 60-80℃. Moreover, since the flux is constantly consumed, it is often necessary to replenish the flux inside the heating equipment during the fluxing process.

[0003] In existing technologies, when adding flux to heating equipment, the flux at room temperature is usually added directly to the heating equipment. This not only increases the energy consumption of the heating equipment, but also causes the temperature of the original flux inside the equipment to drop sharply, which will have a certain adverse effect on the fluxing process. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a heating device for fluxing solutions in hot-dip galvanizing, which solves the technical problem that heating devices in existing technologies cannot dynamically recover heat energy. It has the advantage of being able to automatically and dynamically recover heat energy, which can effectively reduce equipment energy consumption.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a hot-dip galvanizing flux heating device, including a processing box, with a flux tank coaxially arranged inside the processing box. The processing box is equipped with a lifting flux mechanism for heating and maintaining the flux solution. An automatic flux replenishment mechanism is installed inside the processing box. During hot-dip galvanizing, the lifting flux mechanism transports the steel parts into the flux tank for flux treatment, thereby ensuring a high degree of cleanliness on the surface of the steel parts. The lifting flux mechanism includes a stirring bracket movably installed inside the flux tank. A heating inner liner for heating the flux solution is provided on the inner wall of the flux tank. An installation bracket is fixedly installed at the upper end of the processing box, and an electric telescopic rod is fixedly installed on the installation bracket. A feeding mesh is fixedly installed at the end of the electric telescopic rod. When the electric telescopic rod extends downward, it transports the steel parts into the processing box to contact the flux solution.

[0006] Preferably, the automatic replenishment mechanism includes an annular cavity formed on the processing box, the annular cavity surrounding the outside of the plating tank, a spiral inner tube provided inside the annular cavity, an inlet valve fixedly installed on the outside of the processing box, and a liquid level sensor provided inside the plating tank. When the plating solution inside the plating tank is insufficient, the plating solution can be quickly added to the inside of the plating tank using the inlet valve.

[0007] Preferably, the lower end of the spiral inner tube is connected to the interior of the plating tank, and the upper end of the spiral inner tube is connected to the liquid inlet valve. When replenishing the plating solution, the plating solution will enter the interior of the plating tank through the spiral inner tube.

[0008] Preferably, the spiral inner tube is spirally wound around the outside of the plating bath. The spiral inner tube is made of thermally conductive metal, and the heat inside the plating bath is conducted to the inside of the annular cavity, thereby preheating the spiral inner tube.

[0009] Preferably, the liquid level sensor can control the opening or closing of the inlet valve by detecting the liquid level in the plating tank. When the plating solution in the plating tank is insufficient, the inlet valve will automatically open, and then the plating solution will enter the interior of the spiral inner tube through the inlet valve.

[0010] Preferably, a drive motor for driving the stirring bracket is fixedly installed at the bottom of the processing box. When the drive motor is powered on, it will cause the stirring bracket to rotate rapidly, thereby stirring and mixing the fluxing solution.

[0011] By means of the above technical solution, this utility model provides a heating device for fluxing solution in hot-dip galvanizing, which has at least the following beneficial effects:

[0012] 1. This utility model, by setting up a lifting plating auxiliary mechanism and an automatic liquid replenishment mechanism, utilizes the spiral design and thermal conductivity of the spiral inner tube to transfer the heat energy in the plating tank to the newly replenished plating solution in real time, thereby achieving the liquid preheating function. This allows the temperature of the replenished solution to be raised to over 50°C (compared to only 20-25°C for traditional direct liquid replenishment). This effectively reduces the subsequent heating energy consumption of the heating inner tank and avoids temperature fluctuations in the tank caused by cold liquid injection, significantly improving the consistency of the plating quality.

[0013] 2. By setting up a lifting and lowering fluxing mechanism and an automatic replenishment mechanism, when the steel part is immersed in the fluxing solution, the rotation of the stirring bracket will cause the fluxing solution to form a directional vortex. On the one hand, it can eliminate local concentration differences, and on the other hand, it can wash the surface of the steel part to avoid the adhesion of air bubbles, which can effectively improve the effect of fluxing treatment. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0015] Figure 1 This is a perspective view of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the lifting and plating assist mechanism in this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the processed box in this utility model;

[0018] Figure 4 This is a schematic diagram of the automatic liquid replenishment mechanism in this utility model.

[0019] In the diagram: 1. Processing box; 2. Plating tank; 3. Lifting plating mechanism; 301. Stirring bracket; 302. Drive motor; 303. Heating inner tank; 304. Mounting bracket; 305. Electric telescopic rod; 306. Feeding mesh tray; 4. Automatic liquid replenishment mechanism; 401. Annular cavity; 402. Spiral inner tube; 403. Liquid inlet valve; 404. Liquid level sensor. Detailed Implementation

[0020] 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.

[0021] Example 1

[0022] In existing technologies, when adding flux to heating equipment, the flux, which is at room temperature, is typically added directly. This not only increases the energy consumption of the heating equipment but also causes a sudden drop in the temperature of the existing flux, negatively impacting the fluxing process. To address this technical deficiency in existing technologies, such as... Figures 1-4 As shown in the figure, this embodiment proposes a hot-dip galvanizing flux heating device, which can use excess heat to preheat the flux. The device has a flux tank 2 coaxially opened inside the processing box 1. The processing box 1 is equipped with a lifting flux mechanism 3 for heating and keeping the flux at a certain temperature. The processing box 1 is equipped with an automatic flux replenishment mechanism 4. During hot-dip galvanizing, the lifting flux mechanism 3 will transport the steel parts into the flux tank 2 for flux treatment, thereby ensuring that the surface of the steel parts has a high degree of cleanliness.

[0023] Specifically, the lifting and plating mechanism 3 includes a stirring bracket 301 movably installed inside the plating tank 2. A drive motor 302 for driving the stirring bracket 301 is fixedly installed at the bottom of the processing box 1. When the drive motor 302 is powered on, it will cause the stirring bracket 301 to rotate rapidly, thereby stirring and mixing the plating solution. The inner wall of the plating tank 2 is provided with a heating inner tank 303 for heating the plating solution. An installation bracket 304 is fixedly installed at the upper end of the processing box 1. An electric telescopic rod 305 is fixedly installed on the installation bracket 304. A feeding mesh tray 306 is fixedly installed at the end of the electric telescopic rod 305. When the electric telescopic rod 305 extends downward, it will transport the steel parts into the interior of the processing box 1 to contact the plating solution.

[0024] To preheat the flux before it is introduced, this embodiment includes an automatic replenishment mechanism 4. Specifically, the automatic replenishment mechanism 4 includes an annular cavity 401 formed on the processing chamber 1, which surrounds the outside of the flux tank 2. A spiral inner tube 402 is installed inside the annular cavity 401, spirally surrounding the outside of the flux tank 2. The spiral inner tube 402 is made of thermally conductive metal, and heat from inside the flux tank 2 is conducted to the inside of the annular cavity 401, thus preheating the spiral inner tube 402. A liquid inlet valve 403 is fixedly installed on the outside of the processing chamber 1. The lower end of the spiral inner tube 402 is connected to the flux tank 2. The interior of plating tank 2 is connected, and the upper end of the spiral inner tube 402 is connected to the liquid inlet valve 403. When replenishing the plating flux, the plating flux will enter the interior of plating tank 2 through the spiral inner tube 402. A liquid level sensor 404 is installed inside plating tank 2. When the plating flux inside plating tank 2 is insufficient, the plating flux can be quickly added to the interior of plating tank 2 using the liquid inlet valve 403. The liquid level sensor 404 can control the opening or closing of the liquid inlet valve 403 by detecting the liquid level height in plating tank 2. When the plating flux in plating tank 2 is insufficient, the liquid inlet valve 403 will automatically open, and then the plating flux will enter the interior of the spiral inner tube 402 through the liquid inlet valve 403.

[0025] As can be seen from the above, when using this equipment to perform flux plating on pickled steel parts, firstly, the staff will add a certain amount of flux solution into the flux plating tank 2. Then, the heating inner tank 303 will heat and keep the flux solution warm, thereby ensuring that the temperature of the flux solution is maintained at 60-80℃. Then, the steel parts are placed inside the feeding mesh tray 306.

[0026] Subsequently, the feeding tray 306 will transfer the steel part into the interior of the fluxing tank 2 under the action of the electric telescopic rod 305, so that the steel part is in continuous contact with the fluxing solution at the working temperature. After a predetermined time, the feeding tray 306 will move upward under the action of the electric telescopic rod 305, so that the steel part is removed from the fluxing solution.

[0027] As the fluxing process continues, the fluxing solution will be continuously consumed. When the liquid level in the fluxing tank 2 is lower than the predetermined value, the inlet valve 403 will automatically open under the control of the liquid level sensor 404. Subsequently, external fluxing solution will enter the interior of the spiral inner tube 402 through the inlet valve 403. At the same time, the fluxing solution inside the spiral inner tube 402 will enter the interior of the fluxing tank 2, thereby completing the automatic replenishment of the fluxing solution.

[0028] Moreover, during the process of storing the flux in the spiral inner tube 402, some of the heat inside the flux tank 2 will be conducted to the interior of the annular cavity 401, thereby preheating the flux in the spiral inner tube 402.

[0029] This embodiment, by setting up a lifting plating aid mechanism 3 and an automatic replenishment mechanism 4, utilizes the spiral design and thermal conductivity of the spiral inner tube 402 to conduct heat energy in the plating tank 2 to the newly replenished plating solution in real time, thereby achieving the preheating function of the inlet solution. This allows the temperature of the replenished solution to be raised to over 50°C (compared to only 20-25°C for traditional direct replenishment). This effectively reduces the subsequent heating energy consumption of the heating inner tank 303 and avoids temperature fluctuations in the tank caused by cold liquid injection, significantly improving the consistency of the plating quality. Furthermore, by setting up the lifting plating aid mechanism 3 and the automatic replenishment mechanism 4, when the steel part is immersed in the plating solution, the rotation of the stirring bracket 301 will cause the plating solution to form a directional vortex. This will eliminate local concentration differences and flush the surface of the steel part, preventing air bubbles from adhering, thus effectively improving the plating treatment effect.

[0030] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0031] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] 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 plating aid liquid heating device for hot-dip galvanizing, comprising a processing box body (1), a plating aid groove (2) is coaxially arranged in the inside of the processing box body (1), characterized in that: The processing box (1) is provided with a lifting plating aid mechanism (3) for heating and keeping the plating aid liquid, and the inside of the processing box (1) is provided with an automatic liquid supplement mechanism (4); The lifting plating aid mechanism (3) comprises a stirring support (301) movably installed in the inside of the plating aid tank (2), the inner wall of the plating aid tank (2) is provided with a heating inner container (303) for heating the plating aid liquid, the upper end of the processing box (1) is fixedly installed with a mounting support (304), the mounting support (304) is fixedly installed with an electric telescopic rod (305), and the end of the electric telescopic rod (305) is fixedly installed with a feeding net disc (306).

2. The galvannealing fluxing liquid heating apparatus according to claim 1, characterized by: The automatic liquid supplement mechanism (4) comprises an annular cavity (401) opened on the processing box (1), the annular cavity (401) surrounds the outside of the plating aid tank (2), the inside of the annular cavity (401) is provided with a spiral inner tube (402), the outside of the processing box (1) is fixedly installed with an inlet valve (403), and the inside of the plating aid tank (2) is provided with a liquid level sensor (404).

3. The galvannealing fluxing liquid heating apparatus according to claim 2, characterized by: The lower end of the spiral inner tube (402) is communicated with the inside of the plating aid tank (2), and the upper end of the spiral inner tube (402) is communicated with the inlet valve (403).

4. The galvannealing fluxing liquid heating apparatus according to claim 2, characterized by: The spiral inner tube (402) spirally surrounds the outside of the plating aid tank (2), and is made of heat-conducting metal.

5. The galvannealing fluxing liquid heating apparatus according to claim 2, characterized by: The liquid level sensor (404) can control the opening and closing of the inlet valve (403) by detecting the liquid level in the plating aid tank (2).

6. The galvannealing fluxing liquid heating apparatus according to claim 1, characterized by: The bottom of the processing box (1) is fixedly installed with a driving motor (302) for driving the stirring support (301).

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