A stable hot galvanizing strip steel out of pot equipment

Abstract

The utility model discloses a stable type hot galvanizing strip steel equipment of taking out pot. Including zinc pot body, the zinc pot body has the zinc liquid cavity for accommodating zinc liquid and the zinc liquid cavity that steel band passes through in, the sinking roll is rotatably connected in the zinc pot body, the sinking roll is immersed in the zinc liquid, the both ends of sinking roll are connecting shaft, at least two flow guides are fixedly connected with on the outer peripheral wall of connecting shaft along the circumference. The utility model relates to a stable type hot galvanizing strip steel equipment of taking out pot has solved the technical problem that the flowability of the zinc liquid in the zinc pot is not good when the traditional hot galvanizing strip steel equipment of taking out pot is in operation, and when the zinc liquid appears the supercooling condition, and the plating layer is easy to appear and falls off, and the technical problem that the dregs of zinc liquid overheating produce and adhere on the strip steel surface.

Description

Technical Field

[0001] This utility model relates to the field of galvanizing technology, specifically to a stable hot-dip galvanized strip steel unloading device. Background Technology

[0002] In the hot-dip galvanized steel strip production process, the zinc pot, as the core equipment, plays a decisive role in the galvanizing quality of the strip due to the state of the molten zinc inside. Currently, in the operation of traditional hot-dip galvanized steel strip unloading equipment, the fluidity of the molten zinc in the pot is poor. This makes it difficult for the zinc to circulate fully within the pot, resulting in uneven immersion of the strip in zinc during the galvanizing process, leading to uneven coating thickness and affecting product quality. Moreover, the uneven temperature of the molten zinc is particularly prominent, with significant temperature differences in different areas of the zinc pot. When the molten zinc becomes too cold, the coating on the strip surface solidifies rapidly. This rapidly solidified coating has a loose structure and weak adhesion to the strip substrate, making it prone to peeling off during subsequent processing or use. Conversely, if the molten zinc is overheated, the zinc in the molten zinc reacts more violently with oxygen in the air, producing a large amount of dross. This dross not only adheres to the strip surface, forming surface defects and reducing the appearance quality of the product, but also increases the consumption of molten zinc, raising production costs.

[0003] Therefore, it is necessary to provide a stable hot-dip galvanized steel strip unloading equipment to solve the above problems. Utility Model Content

[0004] Based on the aforementioned problems in the existing technology, the purpose of this utility model is to provide a stable hot-dip galvanized strip steel unloading equipment to solve the problems mentioned in the background technology.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a stable hot-dip galvanized steel strip unloading device, including a zinc pot body, the zinc pot body having a zinc liquid cavity for containing zinc liquid and for the steel strip to pass through, a submerged roller rotatably connected inside the zinc pot body, the submerged roller being immersed in the zinc liquid, the two ends of the submerged roller being connecting shafts, and at least two guide plates being fixedly connected circumferentially on the outer peripheral wall of the connecting shafts.

[0006] Furthermore, the cross-sectional area of ​​the guide plate is wavy, and the angle between two adjacent guide plates is consistent.

[0007] Furthermore, the cross-sectional area of ​​the bottom of the zinc liquid chamber gradually decreases from left to right.

[0008] Furthermore, the zinc pot body is also equipped with a correction roller and a stabilizing roller. Both the correction roller and the stabilizing roller are immersed in the zinc liquid. The stabilizing roller is close to the liquid surface of the zinc liquid, and the correction roller is located between the stabilizing roller and the submerged roller. The steel strip wraps around the submerged roller from top to bottom and then passes through the correction roller and the stabilizing roller from top to bottom.

[0009] Furthermore, an inlet and an outlet are provided on one side of the zinc pot body. The inlet and outlet are connected to a zinc liquid circulation unit. The zinc liquid circulation unit includes a pump body and a zinc liquid tank containing zinc liquid. The zinc liquid in the zinc liquid tank is discharged into the zinc liquid chamber from the inlet, and the zinc liquid in the zinc liquid chamber is discharged into the zinc liquid tank from the outlet.

[0010] Furthermore, the inlet and outlet are at the same horizontal position and their height is not higher than the submerged roller. The inlet is located on the left side of the bottom of the zinc liquid chamber, the outlet is located on the right side of the bottom of the zinc liquid chamber, and the submerged roller is located between the inlet and outlet.

[0011] Furthermore, an upper heating rod, a middle heating rod, and a lower heating rod are sequentially embedded in the four walls of the zinc pot body from top to bottom. The upper heating rod, the middle heating rod, and the lower heating rod are all arranged around the zinc liquid cavity.

[0012] The beneficial effects of this utility model are: the stable hot-dip galvanized strip steel unloading equipment provided by this utility model can flow the zinc liquid in the zinc liquid chamber by installing guide plates at both ends of the submerged roller, so that the temperature of the zinc liquid in the entire zinc pot is uniform and the phenomenon of local zinc liquid overheating or undercooling will not occur. By setting up intermediate heating rods, upper heating rods and lower heating rods, the zinc liquid in different parts of the zinc pot can be heated in sections, which plays an auxiliary role in the flow guide plate. By incorporating a zinc liquid circulation unit, cooled zinc liquid can be injected into the zinc liquid chamber at high temperatures, thus preventing the zinc liquid from overheating and becoming unmanageable.

[0013] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0014] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments and descriptions of this utility model are used to explain this utility model and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic front view sectional view of the present invention; Figure 2 This is a schematic top view of the overall cross-sectional section of this utility model; Figure 3 This is a schematic diagram of the submerged roller of this utility model; Figure 4 This is a schematic front view of the submerged roller of this utility model; The following are the labeling elements in the figure: 1. Zinc pot body; 11. Zinc liquid chamber; 12. Liquid inlet; 13. Liquid outlet; 2. Intermediate heating rod; 21. Upper heating rod; 22. Lower heating rod; 3. Steel strip; 4. Submerged roller; 41. Connecting shaft; 411. Guide plate; 5. Correction roller; 6. Stabilizing roller. Detailed Implementation

[0015] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0016] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0017] like Figure 1-4 As shown, the present invention provides a technical solution: a stable hot-dip galvanized steel strip unloading device, including a zinc pot body 1, a zinc pot body 1 having a zinc liquid cavity 11 for containing zinc liquid and for the steel strip 3 to pass through, a submerged roller 4 rotatably connected inside the zinc pot body 1, the submerged roller 4 being immersed in the zinc liquid, the two ends of the submerged roller 4 being connecting shafts 41, and at least two guide plates 411 being fixedly connected circumferentially on the outer peripheral wall of the connecting shafts 41.

[0018] The cross-sectional area of ​​the guide vane 411 is wavy, and the angle between two adjacent guide vanes 411 is the same.

[0019] The cross-sectional area of ​​the bottom of the zinc liquid chamber 11 gradually decreases from left to right.

[0020] The zinc pot body 1 is also equipped with a correction roller 5 and a stabilizing roller 6. Both the correction roller 5 and the stabilizing roller 6 are immersed in the zinc liquid. The stabilizing roller 6 is close to the liquid surface of the zinc liquid, and the correction roller 5 is located between the stabilizing roller 6 and the submerged roller 4. The steel strip 3 wraps around the submerged roller 4 from top to bottom and then passes through the correction roller 5 and the stabilizing roller 6 from top to bottom.

[0021] The zinc pot body 1 has an inlet 12 and an outlet 13 on one side. The inlet 12 and outlet 13 are connected to a zinc liquid circulation unit. The zinc liquid circulation unit includes a pump body and a zinc liquid tank containing zinc liquid. The zinc liquid in the zinc liquid tank is discharged from the inlet 12 into the zinc liquid chamber 11, and the zinc liquid in the zinc liquid chamber 11 is discharged from the outlet 13 into the zinc liquid tank.

[0022] The inlet 12 and outlet 13 are at the same horizontal level and their height is no higher than that of the submerged roller 4. The inlet 12 is located on the left side of the bottom of the zinc liquid chamber 11, and the outlet 13 is located on the right side of the bottom of the zinc liquid chamber 11. The submerged roller 4 is located between the inlet 12 and the outlet 13. Because the bottom of the zinc liquid chamber 11 is set with the left side higher than the right side, the slag in the zinc liquid will sink to the lower position of the bottom of the chamber due to gravity, thereby reducing the blockage of the zinc liquid by the submerged impurities when it is discharged from the outlet 13.

[0023] The zinc pot body 1 has an upper heating rod 21, a middle heating rod 2, and a lower heating rod 22 embedded in its four walls from top to bottom. The upper heating rod 21, the middle heating rod 2, and the lower heating rod 22 are all arranged around the zinc liquid cavity 11.

[0024] In one embodiment, the operating principle of the device Specifically, the submerged roller 4, the straightening roller 5, and the stabilizing roller 6 are all adjusted to their corresponding positions. The steel strip 3 extracted from the steel coil is passed around the bottom of the submerged roller 4. After being guided by the straightening roller 5 and the stabilizing roller 6, it exits the zinc pot body 1 and is wound up. During the winding process of the steel strip 3, the submerged roller 4 receives the friction force of the steel strip 3 and is passively rotated. At this time, it drives the guide plate 411 to rotate. After the zinc liquid comes into contact with the guide plate 411, it causes the zinc liquid in the zinc liquid chamber 11 to flow. Turning on the upper heating rod 21 can heat the zinc liquid chamber. The upper layer of zinc liquid in the zinc liquid chamber 11 is heated. Turning on the middle heating rod 2 can heat the middle layer of zinc liquid in the zinc liquid chamber 11, and turning on the lower heating rod 22 can heat the lower layer of zinc liquid in the zinc liquid chamber 11, thus realizing zoned heating of zinc liquid. When the temperature in the zinc liquid chamber 11 is too high, the zinc liquid circulation unit is activated to discharge the cooled zinc liquid in the zinc liquid tank from the inlet 12, and then discharge the hot zinc liquid from the outlet 13 into the zinc liquid chamber 11 for cooling and storage, so that the temperature of zinc liquid in the zinc liquid chamber 11 can be freely controlled.

[0025] In summary, this equipment, by installing guide plates 411 at both ends of the submerged roller 4, can circulate the zinc liquid in the zinc pot 11, thereby ensuring a uniform temperature of the zinc liquid throughout the zinc pot and preventing localized overheating or undercooling. The inclusion of intermediate heating rods 2, upper heating rods 21, and lower heating rods 22 allows for zoned heating of the zinc liquid at different locations within the zinc pot body 1, providing auxiliary heating to the guide plates 411. Furthermore, the zinc liquid circulation unit injects cooled zinc liquid into the zinc pot 11 at high temperatures, preventing the zinc liquid from overheating and becoming unmanageable. This solves the technical problems of poor fluidity of the zinc liquid in the zinc pot during operation of traditional hot-dip galvanized strip unloading equipment, as well as the tendency for coating peeling when the zinc liquid is too cold and slag adhesion to the strip surface due to overheating.

[0026] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A stable hot-dip galvanized steel strip unloading device, characterized in that: The system includes a zinc pot body (1), which has a zinc liquid cavity (11) for containing molten zinc and through which the steel strip (3) passes. A submerged roller (4) is rotatably connected inside the zinc pot body (1). The submerged roller (4) is immersed in the molten zinc. Both ends of the submerged roller (4) are connecting shafts (41). At least two guide plates (411) are fixedly connected to the outer peripheral wall of the connecting shaft (41) along the circumferential direction.

2. The stable hot-dip galvanized steel strip unloading equipment according to claim 1, characterized in that: The cross-sectional area of ​​the guide plate (411) is wavy, and the angle between two adjacent guide plates (411) is consistent.

3. The stable hot-dip galvanized steel strip unloading equipment according to claim 1, characterized in that: The cross-sectional area of ​​the bottom of the zinc liquid chamber (11) gradually decreases from left to right.

4. The stable hot-dip galvanized steel strip unloading equipment according to claim 1, characterized in that: The zinc pot body (1) is also equipped with a correction roller (5) and a stabilizing roller (6). The correction roller (5) and the stabilizing roller (6) are both immersed in the zinc liquid. The stabilizing roller (6) is close to the liquid surface of the zinc liquid. The correction roller (5) is located between the stabilizing roller (6) and the submerged roller (4). The steel strip (3) wraps around the submerged roller (4) from top to bottom and then passes through the correction roller (5) and the stabilizing roller (6) from top to bottom.

5. The stable hot-dip galvanized steel strip unloading equipment according to claim 3, characterized in that: The zinc pot body (1) has an inlet (12) and an outlet (13) on one side. The inlet (12) and outlet (13) are connected to a zinc liquid circulation unit. The zinc liquid circulation unit includes a pump body and a zinc liquid tank containing zinc liquid. The zinc liquid in the zinc liquid tank is discharged from the inlet (12) into the zinc liquid chamber (11), and the zinc liquid in the zinc liquid chamber (11) is discharged from the outlet (13) into the zinc liquid tank.

6. The stable hot-dip galvanized steel strip unloading equipment according to claim 5, characterized in that: The inlet (12) and outlet (13) are at the same horizontal position and their height is not higher than that of the submerged roller (4). The inlet (12) is located on the left side of the bottom of the zinc liquid chamber (11), and the outlet (13) is located on the right side of the bottom of the zinc liquid chamber (11). The submerged roller (4) is located between the inlet (12) and the outlet (13).

7. The stable hot-dip galvanized steel strip unloading equipment according to claim 3, characterized in that: The zinc pot body (1) has an upper heating rod (21), a middle heating rod (2) and a lower heating rod (22) embedded in its four walls from top to bottom. The upper heating rod (21), the middle heating rod (2) and the lower heating rod (22) are all arranged around the zinc liquid cavity (11).

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