A hot galvanizing line pickling device

Abstract

The utility model is suitable for pickling equipment technical field provides a kind of hot galvanizing line pickling device, including base;Fixedly connected in the pickling tank of the base top end, the lower end of the front of pickling tank is fixedly connected with discharge pipe, the both sides fixedly connected with pneumatic cylinder in the base top end, the output of pneumatic cylinder is fixedly connected with top cover, the both sides of the top cover top end are rotatably connected with guide roller, and the top cover on guide roller side is provided with through slot;Symmetrical fixedly connected in the connecting plate of the top cover bottom end both sides, the bottom end of connecting plate is provided with fixed frame, and the lower end of the both sides of fixed frame inner wall is rotatably connected with pickling roller.The hot galvanizing line pickling device provided by the scheme utilizes circulation filtering component, can be circulated and filtered to the pickling liquid inside pickling tank, avoid too many floating impurities and influence pickling effect, and the flowing pickling liquid can improve the corresponding pickling effect, improve its practicality.

Description

Technical Field

[0001] This utility model belongs to the technical field of pickling equipment, and in particular relates to a pickling device for a hot-dip galvanizing line. Background Technology

[0002] Hot-dip galvanized iron wire is a type of metal wire made by immersing low-carbon steel wire in molten zinc at 450℃-480℃ after pickling and rust removal, so that a zinc-iron alloy layer is formed on the surface. Pickling and rust removal is a very important step, as it can effectively remove oxides and other impurities from the surface of the steel wire to ensure the quality of subsequent galvanizing.

[0003] Chinese patent discloses a hot-dip galvanizing pickling line, publication number CN218321658U. The paper states that it "includes a pickling tank, with grooves on the front and rear sides of the pickling tank, and a return nozzle at the corresponding groove position. The return nozzle is inclined towards the pickling tank, and a rolling positioning component is installed inside the return nozzle. A pressing component is vertically movable within the pickling tank. This device positions the steel wire using the rolling positioning components on both sides, and presses the steel wire into the pickling tank for pickling by the downward movement of the pressing component. When a new steel wire needs to be replaced after pickling, the pressing component is lifted and removed from the pickling tank, facilitating the insertion of a new steel wire and simplifying the pickling assembly operation, making it suitable for widespread use."

[0004] However, existing technology makes it inconvenient to perform acid circulation filtration. During pickling, some impurities will precipitate, while others will float in the acid. Too many floating impurities will affect the subsequent acid pickling effect. Furthermore, if the pickling solution is left to stand still, it will also affect the pickling effect. Therefore, it is necessary to design a pickling device for hot-dip galvanizing lines. Utility Model Content

[0005] This utility model provides a pickling device for a hot-dip galvanizing line, which aims to solve the problem that some currently used pickling devices are inconvenient for acid circulation and filtration.

[0006] This utility model is implemented as follows: a hot-dip galvanizing line pickling device includes a base; a pickling tank fixedly connected to the top of the base, with a slag discharge pipe fixedly connected to the lower end of the front of the pickling tank, a controller fixedly connected to the top of the base on one side of the pickling tank, cylinders fixedly connected to both sides of the top of the base, a top cover fixedly connected to the output end of the cylinders, guide rollers rotatably connected to both sides of the top of the top cover, and a through groove opened on one side of the top cover; connecting plates symmetrically fixedly connected to both sides of the bottom of the top cover, with a fixing frame provided at the bottom of the connecting plate, and pickling rollers rotatably connected to the lower ends of both sides of the inner wall of the fixing frame; an installation assembly assembled between the fixing frame and the connecting plate, the installation assembly being used to assemble and disassemble the fixing frame and the connecting plate; and a circulating filter assembly assembled at the top of the base, the circulating filter assembly being used to circulate and filter the pickling solution inside the pickling tank.

[0007] Preferably, the circulating filtration assembly includes: a filter box fixedly connected to the top of the base, the lower end of one side of the filter box being connected to the upper end of the back side of the pickling tank via a conduit; an acid-resistant pump being fixedly connected to the top of the base on one side of the filter box, the input end of the acid-resistant pump being connected to the lower end of the inside of the pickling tank via a conduit, and the output end of the acid-resistant pump being connected to the top side of the filter box via a conduit; a fixing groove formed on the back of the filter box, a sealing plate being provided on the back of the filter box, and a filter hopper extending into the inside of the filter box being fixedly connected to one end of the sealing plate.

[0008] Preferably, a sealing gasket is fixedly connected to one end of the surface of the sealing plate, and the cross-sectional area of ​​the sealing gasket is equal to the cross-sectional area of ​​the opening inside the fixing groove.

[0009] Preferably, the upper end of the inner wall of the filter bucket is inclined, and one end of the filter bucket and the back of the sealing plate are welded together as an integral structure.

[0010] Preferably, a fixing structure is provided between the bottom end of the sealing plate and the lower end of the back of the filter box. The fixing structure is used to realize the assembly and disassembly of the sealing plate and the filter box. The fixing structure includes: sliding grooves symmetrically opened on both sides of the lower end of the back of the filter box; a sliding rod is fixedly connected to the inner wall of the sliding groove; a sliding block is slidably connected to the surface of the sliding rod; a positioning block is fixedly connected to one end of the top of the sliding block; a connecting rod between one side of the two sliding blocks; a fixing spring wrapped around the surface of the sliding rod; the two ends of the fixing spring are fixedly connected to the bottom end of the sliding block and the inner bottom wall of the sliding groove, respectively; and positioning holes symmetrically opened on both sides of the bottom end of the sealing plate, the interior of the positioning holes engaging with the top of the positioning block.

[0011] Preferably, the mounting assembly includes: a slot formed at the middle position of the top of the fixing frame, and a fixing bolt extending into the slot is movably connected to the upper end of one side of the fixing frame; a block fixedly connected to the bottom end of the connecting plate, and a bolt hole with a threaded engagement with one end of the fixing bolt is formed on one side of the block.

[0012] Preferably, the card block and the card slot form an engaging structure, and the card block and the card slot are convex in shape.

[0013] Preferably, an adsorption chamber is provided at the bottom end of the top cover on one side of the channel, a connecting pipe is fixedly connected at the middle position of the top of the top cover, an acid mist discharge pipe is fixedly connected at the middle position of the top of the connecting pipe, and the two ends of the bottom of the connecting pipe are respectively connected to the interior of the adsorption chamber.

[0014] Preferably, a guide plate is fixedly connected to the inner bottom wall of the pickling tank, and the top of the guide plate is inclined.

[0015] Preferably, the pickling tank has symmetrical grooves on both sides, and the bottom of the top cover has sliding plates that slide in cooperation with the inside of the grooves.

[0016] Compared with related technologies, the pickling device for hot-dip galvanizing lines provided by this utility model has the following advantages: 1. By starting the acid-resistant pump, the pickling solution inside the pickling tank is transported to the filter tank. The impurities in the pickling solution are filtered and screened through the filter bucket. The filtered pickling solution is then transported back to the pickling tank, realizing the circulation filtration of the pickling solution. The flowing pickling solution makes it easier to pickle the surface of the steel wire, and the filter bucket can be easily disassembled and installed for thorough cleaning and clogging prevention.

[0017] 2. During the pickling process, the acid mist is drawn away through the adsorption chamber and transported to the packed tower acid mist purification tower through the connecting pipe and the acid mist discharge pipe for purification and removal. This prevents the acid mist from spreading out of the channel, thus avoiding air pollution or affecting the respiratory health of workers caused by acid mist. At the same time, the installation components can be used to realize the disassembly and assembly between the fixed frame and the connecting plate, which facilitates the disassembly and maintenance of the pickling roller. Attached Figure Description

[0018] Figure 1 This is a front view structural diagram of the present utility model; Figure 2 This is a schematic diagram of the rear view structure of this utility model; Figure 3 This is a front view cross-sectional structural diagram of the present invention; Figure 4 This is a partial cross-sectional exploded view of the pickling tank and top cover of this utility model; Figure 5This is a partial exploded view of the circulating filter component of this utility model; Figure 6 This is a partial bottom-view exploded structural diagram of the sealing plate and filter box of this utility model; Figure 7 For the present utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0019] In the diagram: 1. Top cover; 2. Acid mist discharge pipe; 3. Connecting pipe; 4. Through groove; 5. Guide roller; 6. Slide plate; 7. Pickling tank; 8. Controller; 9. Base; 10. Slag discharge pipe; 11. Cylinder; 12. Slide groove; 13. Circulating filter assembly; 1301. Acid-resistant pump; 1302. Sealing plate; 1303. Filter box; 1304. Fixing groove; 1305. Filter hopper; 1306. Sealing gasket; 307. Positioning hole; 1308. Positioning block; 1309. Sliding block; 1310. Sliding rod; 1311. Fixing spring; 1312. Connecting rod; 1313. Sliding groove; 14. Adsorption chamber; 15. Guide plate; 16. Fixing frame; 17. Pickling roller; 18. Connecting plate; 19. Mounting assembly; 1901. Locking block; 1902. Locking groove; 1903. Fixing bolt; 1904. Bolt hole. Detailed Implementation

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0021] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0022] Example 1 A preferred embodiment of the hot-dip galvanizing line pickling device provided by this utility model is, for example... Figures 1 to 7The diagram shows a hot-dip galvanizing line pickling device, comprising a base 9; a pickling tank 7 fixedly connected to the top of the base 9, with a slag discharge pipe 10 fixedly connected to the lower end of the front of the pickling tank 7, a controller 8 fixedly connected to the top of the base 9 on one side of the pickling tank 7, cylinders 11 fixedly connected to both sides of the top of the base 9, a top cover 1 fixedly connected to the output end of the cylinders 11, guide rollers 5 rotatably connected to both sides of the top ...

[0023] It should be noted that some existing hot-dip galvanizing line pickling equipment still has certain shortcomings in actual use. During pickling, some impurities will precipitate, while others will float in the acid solution. Too many floating impurities will affect the subsequent pickling effect, and the pickling solution will also affect its pickling effect if left to stand still.

[0024] In a further preferred embodiment of this utility model, the circulating filtration assembly 13 includes: a filter box 1303 fixedly connected to the top of the base 9, the lower end of one side of the filter box 1303 being connected to the upper end of the back side of the pickling tank 7 via a conduit, an acid-resistant pump 1301 fixedly connected to the top of the base 9 on one side of the filter box 1303, the input end of the acid-resistant pump 1301 being connected to the lower end of the inside side of the pickling tank 7 via a conduit, and the output end of the acid-resistant pump 1301 being connected to the top side of the filter box 1303 via a conduit; a fixing groove 1304 formed on the back of the filter box 1303, a sealing plate 1302 provided on the back of the filter box 1303, and a filter hopper 1305 extending into the inside of the filter box 1303 being fixedly connected to one end of the sealing plate 1302.

[0025] In this embodiment, by starting the acid-resistant pump 1301, the pickling solution inside the pickling tank 7 is transported to the filter tank 1303, and the impurities in the pickling solution are filtered and screened through the filter bucket 1305. The filtered pickling solution is then transported back to the pickling tank 7 in a circulating manner, thereby realizing the circulating filtration of the pickling solution.

[0026] In a further preferred embodiment of the present invention, a sealing gasket 1306 is fixedly connected to one end of the surface of the sealing plate 1302, and the area of ​​the cross-section of the sealing gasket 1306 is equal to the area of ​​the cross-section of the opening inside the fixing groove 1304.

[0027] In this embodiment, the sealing gasket 1306 is used to improve the sealing performance of the sealing plate 1302 and the internal engagement of the fixing groove 1304.

[0028] In a further preferred embodiment of the present invention, the upper end of the inner wall of the filter bucket 1305 is inclined, and one end of the filter bucket 1305 and the back of the sealing plate 1302 are welded together in an integrated structure.

[0029] In this embodiment, the filter bucket 1305 with its inclined inner wall facilitates the guidance of the pickling solution, allowing it to pass more smoothly through the lower part of the filter bucket 1305 for filtration and screening.

[0030] In a further preferred embodiment of this utility model, a fixing structure is provided between the bottom end of the sealing plate 1302 and the lower end of the back of the filter box 1303. The fixing structure is used to realize the assembly and disassembly of the sealing plate 1302 and the filter box 1303. The fixing structure includes: sliding grooves 1313 symmetrically opened on both sides of the lower end of the back of the filter box 1303; a sliding rod 1310 is fixedly connected to the inner wall of the sliding groove 1313; a sliding block 1309 is slidably connected to the surface of the sliding rod 1310; a positioning block 1308 is fixedly connected to one end of the top of the sliding block 1309; a connecting rod 1312 between one side of the two sliding blocks 1309; a fixing spring 1311 wrapped around the surface of the sliding rod 1310; the two ends of the fixing spring 1311 are fixedly connected to the bottom end of the sliding block 1309 and the inner bottom wall of the sliding groove 1313, respectively; and positioning holes 1307 symmetrically opened on both sides of the bottom end of the sealing plate 1302. The interior of the positioning hole 1307 is engaged with the top of the positioning block 1308.

[0031] In this embodiment, the filter bucket 1305 is removed by the sealing plate 1302 to facilitate cleaning and prevent clogging of the filter bucket 1305. During installation, the filter bucket 1305 is slid into the filter box 1303. Then, the elastic force of the fixing spring 1311 is used to make the sliding block 1309 slide upward, which drives the positioning block 1308 to slide upward and lock into the positioning hole 1307, so as to achieve a firm installation between the sealing plate 1302 and the filter box 1303.

[0032] Example 2 Based on Example 1, a preferred embodiment of the hot-dip galvanizing line pickling apparatus provided by this utility model is, for example... Figures 1 to 7 As shown: The mounting component 19 includes: a slot 1902 located at the middle of the top of the mounting bracket 16, and a fixing bolt 1903 extending into the slot 1902 is movably connected to the upper end of one side of the mounting bracket 16; a block 1901 fixedly connected to the bottom of the connecting plate 18, and a bolt hole 1904 on one side of the block 1901 that is threaded to one end of the fixing bolt 1903.

[0033] In this embodiment, the engagement between the locking block 1901 and the slot 1902, and the threaded engagement between the fixing bolt 1903 and the bolt hole 1904, are used to realize the assembly and disassembly of the fixing frame 16 and the connecting plate 18, which facilitates the disassembly and maintenance of the pickling roller 17.

[0034] In a further preferred embodiment of the present invention, the internal structure of the card block 1901 and the card slot 1902 forms an engaging structure, and the shapes of the card block 1901 and the card slot 1902 are convex.

[0035] In this embodiment, the engagement between the convex locking block 1901 and the slot 1902 improves the firmness and stability of the initial engagement installation of the fixing frame 16 and the connecting plate 18.

[0036] In a further preferred embodiment of the present invention, an adsorption cavity 14 is provided at the bottom end of the top cover 1 on one side of the channel 4, a connecting pipe 3 is fixedly connected at the middle position of the top end of the top cover 1, an acid mist discharge pipe 2 is fixedly connected at the middle position of the top end of the connecting pipe 3, and the two ends of the bottom end of the connecting pipe 3 are respectively connected to the interior of the adsorption cavity 14.

[0037] In this embodiment, the acid mist discharge pipe 2 is connected to the negative pressure fan and the packed tower acid mist purification tower. Then, the acid mist in the pickling process will be sucked away through the adsorption chamber 14 and transported to the packed tower acid mist purification tower for purification and removal through the connecting pipe 3 and the acid mist discharge pipe 2, so as to prevent the acid mist from spreading out from the through trough 4.

[0038] In a further preferred embodiment of the present invention, a guide plate 15 is fixedly connected to the inner bottom wall of the pickling tank 7, and the top of the guide plate 15 is inclined.

[0039] In this embodiment, the inclined guide plate 15 is used to allow the pickling solution and precipitated impurities to be discharged more smoothly and thoroughly from the slag discharge pipe 10.

[0040] In a further preferred embodiment of the present invention, the pickling tank 7 is provided with symmetrical grooves 12 on both sides, and the bottom end of the top cover 1 is fixedly connected with sliding plates 6 that slide in cooperation with the inside of the grooves 12.

[0041] In this embodiment, the smoothness of the top cover 1 sliding up and down is improved by utilizing the sliding of the slide plate 6 and the inside of the slide groove 12.

[0042] In summary, firstly, the top cover 1 is raised by starting the cylinder 11, which in turn drives the fixing frame 16 and pickling roller 17 to rise to the outside of the pickling tank 7. Then, the operator passes the steel wire through the guide roller 5, the through groove 4 and the pickling roller 17 in sequence until it passes through another through groove 4. Then, the cylinder 11 is started to lower the top cover 1, which in turn drives the pickling roller 17 and the steel wire to fall below the surface of the pickling liquid inside the pickling tank 7, so that the pickling operation can be carried out normally. Meanwhile, the acid mist discharge pipe 2 is connected to the negative pressure fan and the packed tower acid mist purification tower through a hose. Then, the acid mist in the pickling process will be sucked away through the adsorption chamber 14 and transported to the packed tower acid mist purification tower for purification and removal through the connecting pipe 3 and the acid mist discharge pipe 2, so as to prevent the acid mist from spreading out from the through trough 4. Furthermore, by starting the acid-resistant pump 1301, the pickling solution inside the pickling tank 7 is transported to the filter tank 1303, and the impurities in the pickling solution are filtered and screened through the filter bucket 1305. The filtered pickling solution is then transported back to the pickling tank 7 to achieve the circulation filtration of the pickling solution. Moreover, the flowing pickling solution makes it easier to pickle the surface of the steel wire. After the pickling process is completed, the two sliding blocks 1309 can be moved down by moving the connecting rod 1312 to compress the fixing spring 1311 and completely disengage from the positioning hole 1307. Then, the filter bucket 1305 can be taken out through the sealing plate 1302 to facilitate cleaning and prevent clogging of the filter bucket 1305. During installation, the connecting rod 1312 is moved down to make the sealing gasket 1306 slide down, and then the filter bucket 1305 is slid into the filter box 1303. After that, the connecting rod 1312 is released, and the elastic force of the fixing spring 1311 is used to make the sliding block 1309 slide up to drive the positioning block 1308 to slide up and lock into the positioning hole 1307, so as to achieve a firm installation between the sealing plate 1302 and the filter box 1303. The sealing gasket 1306 is used to improve the sealing performance of the sealing plate 1302 and the fixing groove 1304, and prevent the pickling solution from leaking. Finally, after the pickling roller 17 rises to the outside of the pickling tank 7, the fixing bolt 1903 can be loosened with a screwdriver or other tools until it is completely disengaged from the bolt hole 1904. Then, the fixing bracket 16 can be moved so that the locking block 1901 is completely disengaged from the slot 1902. The fixing bracket 16 can then be disassembled for easy maintenance of the pickling roller 17. During installation, the locking block 1901 is locked into the slot 1902, and the fixing bolt 1903 is tightened into the bolt hole 1904.

[0043] It is worth noting that the circuits, electronic components, and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0044] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative; the division of units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; the indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0045] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A pickling device for a hot-dip galvanizing line, characterized in that, include: Base (9); A pickling tank (7) is fixedly connected to the top of the base (9). A slag discharge pipe (10) is fixedly connected to the lower end of the front of the pickling tank (7). A controller (8) is fixedly connected to the top of the base (9) on one side of the pickling tank (7). A cylinder (11) is fixedly connected to both sides of the top of the base (9). A top cover (1) is fixedly connected to the output end of the cylinder (11). A guide roller (5) is rotatably connected to both sides of the top of the top of the top cover (1). A through groove (4) is opened on the top cover (1) on one side of the guide roller (5). A connecting plate (18) is symmetrically fixedly connected to both sides of the bottom end of the top cover (1). A fixing frame (16) is provided at the bottom end of the connecting plate (18). Pickling rollers (17) are rotatably connected to the lower ends of both sides of the inner wall of the fixing frame (16). A mounting assembly (19) is assembled between the fixing frame (16) and the connecting plate (18), the mounting assembly (19) being used to enable the assembly and disassembly of the fixing frame (16) and the connecting plate (18); The circulating filter assembly (13) is mounted on the top of the base (9) and is used to achieve the circulating filtration of pickling liquid inside the pickling tank (7).

2. The pickling apparatus for a hot-dip galvanizing line as described in claim 1, characterized in that, The circulating filter assembly (13) includes; A filter box (1303) is fixedly connected to the top of the base (9). The lower end of one side of the filter box (1303) is connected to the upper end of the back side of the pickling tank (7) through a conduit. An acid-resistant pump (1301) is fixedly connected to the top of the base (9) on one side of the filter box (1303). The input end of the acid-resistant pump (1301) is connected to the lower end of the inside side of the pickling tank (7) through a conduit. The output end of the acid-resistant pump (1301) is connected to the top side of the filter box (1303) through a conduit. A fixing groove (1304) is provided on the back of the filter box (1303), and a sealing plate (1302) is provided on the back of the filter box (1303). A filter bucket (1305) extending into the interior of the filter box (1303) is fixedly connected to one end of the sealing plate (1302).

3. The pickling apparatus for a hot-dip galvanizing line as described in claim 2, characterized in that, A sealing gasket (1306) is fixedly connected to one end of the surface of the sealing plate (1302), and the area of ​​the cross-section of the sealing gasket (1306) is equal to the area of ​​the cross-section of the opening inside the fixing groove (1304).

4. The pickling apparatus for a hot-dip galvanizing line as described in claim 2, characterized in that, The upper end of the inner wall of the filter bucket (1305) is inclined, and one end of the filter bucket (1305) is welded to the back of the sealing plate (1302) in an integrated structure.

5. The pickling apparatus for a hot-dip galvanizing line as described in claim 2, characterized in that, A fixing structure is provided between the bottom end of the sealing plate (1302) and the lower end of the back of the filter box (1303). The fixing structure is used to realize the assembly and disassembly of the sealing plate (1302) and the filter box (1303). The fixing structure includes: A sliding groove (1313) is symmetrically opened on both sides of the lower end of the back of the filter box (1303). A sliding rod (1310) is fixedly connected to the inner wall of the sliding groove (1313). A sliding block (1309) is slidably connected to the surface of the sliding rod (1310). A positioning block (1308) is fixedly connected to one end of the top of the sliding block (1309). A connecting rod (1312) is connected between one side of the two sliding blocks (1309). A fixed spring (1311) is wound around the surface of the slide bar (1310), and the two ends of the fixed spring (1311) are fixedly connected to the bottom end of the sliding block (1309) and the inner bottom wall of the sliding groove (1313), respectively. Positioning holes (1307) are symmetrically opened on both sides of the bottom end of the sealing plate (1302), and the interior of the positioning holes (1307) engages with the top of the positioning block (1308).

6. The pickling apparatus for a hot-dip galvanizing line as described in claim 1, characterized in that, The installation component (19) includes: A slot (1902) is provided at the middle position of the top of the fixed frame (16), and a fixing bolt (1903) extending into the slot (1902) is movably connected to the upper end of one side of the fixed frame (16). A locking block (1901) is fixedly connected to the bottom end of the connecting plate (18). A bolt hole (1904) is provided on one side of the locking block (1901) and is threaded to one end of the fixing bolt (1903).

7. The pickling apparatus for a hot-dip galvanizing line as described in claim 6, characterized in that, The card block (1901) and the card slot (1902) form an engaging structure, and the card block (1901) and the card slot (1902) are convex in shape.

8. The pickling apparatus for a hot-dip galvanizing line as described in claim 1, characterized in that, An adsorption chamber (14) is provided at the bottom of the top cover (1) on one side of the channel (4). A connecting pipe (3) is fixedly connected at the middle position of the top of the top of the top cover (1). An acid mist discharge pipe (2) is fixedly connected at the middle position of the top of the connecting pipe (3). The two ends of the bottom of the connecting pipe (3) are respectively connected to the inside of the adsorption chamber (14).

9. The pickling apparatus for a hot-dip galvanizing line as described in claim 1, characterized in that, The bottom wall of the pickling tank (7) is fixedly connected to a guide plate (15), and the top of the guide plate (15) is inclined.

10. The pickling apparatus for a hot-dip galvanizing line as described in claim 1, characterized in that, The pickling tank (7) has symmetrical grooves (12) on both sides, and the bottom of the top cover (1) is fixedly connected to the two sides of the top cover (1) with sliding plates (6) that slide in cooperation with the inside of the grooves (12).

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