CN216688326U - Pickling device - Google Patents

Abstract

The utility model discloses a pickling device, which comprises a feeding device, a pickling device, a rinsing device and a drying device, wherein the feeding device is arranged on the upper portion of the pickling device; the feeding device is used for placing a steel belt to be processed on a production line; an inlet of the pickling device is communicated with an outlet of the feeding device, and the pickling device is used for pickling the steel strip; an acid liquor circulating component is arranged at the bottom end of the pickling device; an inlet of the rinsing device is communicated with an outlet of the pickling device, the rinsing device is used for rinsing acid liquor remained on the surface of the steel strip, a spraying assembly is arranged in the rinsing device, and the rinsing device is communicated with an acid liquor separation assembly; and the inlet of the drying device is communicated with the outlet of the rinsing device, and the drying device is used for drying the rinsed steel strips and stacking the steel strips. The utility model has simple structure and high automation degree, separates the pickling process from the rinsing process, simultaneously uses the pure water injection to replace the existing rinsing mode of the water pool immersion, has good rinsing quality, does not have acid liquor residue, provides convenience for the next process, and has good final product quality and high benefit.

Description

Pickling device

Technical Field

The utility model relates to the technical field of metal processing, in particular to a pickling device.

Background

The pickling is a method for removing oxide scales and rust on the surface of steel by using an acid solution, and generally, a workpiece is immersed into an aqueous solution of hydrochloric acid or the like to remove a thin film of oxide or the like on the surface of metal, and is a method for cleaning the surface of metal, and is a pretreatment or intermediate treatment process of processes such as electroplating, enameling, rolling and the like.

However, when the existing pickling device enters a rinsing tank after pickling again, only the wringing roller is used for treating acid liquor on the surface of the pickled strip steel, so that the acid liquor is brought into rinsing water, a large amount of acid liquor remains on the surface of the rinsed strip steel, and the surface of the rinsed strip steel is yellow and black, and the use requirement of the next procedure cannot be met. Therefore, a new pickling apparatus is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a pickling device to solve the problems in the prior art.

In order to achieve the purpose, the utility model provides the following scheme: the utility model provides a pickling device, which comprises

The feeding device is used for placing a steel belt to be treated on a production line;

an inlet of the pickling device is communicated with an outlet of the feeding device, and the pickling device is used for pickling the steel strip; an acid liquor circulating assembly is arranged at the bottom end of the pickling device;

the inlet of the rinsing device is communicated with the outlet of the pickling device, and the rinsing device is used for rinsing the acid liquor remained on the surface of the steel strip; the rinsing device is communicated with an acid liquor separation assembly; a spray component is arranged in the rinsing device;

and the inlet of the drying device is communicated with the outlet of the rinsing device, and the drying device is used for drying the rinsed steel strips and stacking the steel strips.

Preferably, the pickling device comprises a pickling tank, pickling solution is filled in the pickling tank, and a first conveying roller brush is rotatably connected in the pickling tank; the pickling tank is sequentially divided into a descending section, a horizontal section and a rising section along the running direction of the steel strip; the first conveying roller brush is arranged along the fluctuation of the pickling tank, and the rotating direction of the first conveying roller brush is the same as the running direction of the steel strip.

Preferably, a cleaning roller brush is arranged at the tail end of the first conveying roller brush, and the tail end of the cleaning roller brush is communicated with the rinsing device; the cleaning roller brush comprises two rows of brush rollers which are arranged in parallel, the steel belt passes between the two rows of brush rollers, and the brush rollers are in rolling contact with the steel belt.

Preferably, the acid liquor circulation assembly comprises a communicating pipe communicated with the bottom end of the horizontal section, and an electric valve is arranged in the communicating pipe; the other end of the communicating pipe is communicated with an inlet of a filtering component, an outlet of the filtering component is connected with an inlet of a circulating pipe through a circulating pump, and an outlet of the circulating pipe is communicated with the bottom walls of the descending section and the ascending section.

Preferably, the filtering assembly comprises a filtering tank, and a filtering net box is detachably connected to an inlet of the filtering tank; and the outlet of the filter screen box is communicated with the inlet of the circulating pump.

Preferably, the rinsing device comprises a rinsing cover body, and a second conveying roller brush is rotatably connected in the rinsing cover body along the running direction of the steel strip; the spraying assemblies are arranged at the upper end and the lower end of the rinsing cover body; the direction of the spraying assembly is vertical to the running direction of the steel strip; the spraying assemblies are arranged on two sides of the second conveying roller brush.

Preferably, the spraying assembly comprises a connecting flange, an outlet of the connecting flange is connected with a mounting flange, and the mounting flange is fixedly mounted with the side wall of the rinsing cover body; an outlet of the mounting flange is provided with an injection pipe, and the other end of the injection pipe is sealed through a pipe cap; one end of the spray pipe, which is provided with the pipe cap, is detachably connected with a sleeve fixed on the side wall of the rinsing cover body; and the side wall of the injection pipe facing the second conveying roller brush is communicated with a plurality of high-pressure nozzles.

Preferably, the acid liquor separation assembly is communicated with the lower end of the rinsing cover body, and an outlet of the acid liquor separation assembly is respectively communicated with the spraying assembly and the pickling tank.

Preferably, the acid liquor separation component comprises a filter cylinder communicated with the bottom end of the rinsing cover body, an acid liquor separation box is communicated with an outlet of the filter cylinder, a clear water outlet of the acid liquor separation box is communicated with the injection component through a clear water pipe, and an acid liquor outlet of the acid liquor separation box is communicated with the acid pickling tank through an acid liquor pipe.

The utility model discloses the following technical effects: the utility model discloses a pickling device, wherein a steel belt to be pickled is transferred onto a pickling device through a feeding device and is sent into a pickling device, the steel belt is sent into a rinsing device for cleaning after being pickled, and is stacked or transferred to the next process after being dried through a drying device, so that the automation of steel belt pickling is realized, the manual labor intensity is reduced, and the efficiency is improved; an acid liquor circulating assembly is arranged below the pickling device, so that impurities falling from the steel strip in the pickling process can be filtered, and the influence of accumulation of the impurities in the pickling device on the pickling effect is prevented; the rinsing device behind the pickling device sprays clean water to wash the steel strip through the spraying assembly, acid liquor residues on the surface of the steel strip are cleaned, the steel strip panel is prevented from yellowing and blackening, and the next procedure is convenient to carry out; the spraying assembly is different from the immersion type rinsing in the prior art, but is changed into the spraying type rinsing, so that the cleaning is realized, and meanwhile, the sprayed water is clean clear water and does not have acid liquor residue. The utility model has simple structure and high automation degree, separates the pickling and rinsing processes, simultaneously uses the pure water injection to replace the existing rinsing mode of pool immersion, has good rinsing quality, does not have acid liquor residue, provides convenience for the next process, and has good final product quality and high benefit.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a top view of a pickling apparatus according to the utility model;

FIG. 2 is a schematic structural view of the pickling apparatus of the present invention;

FIG. 3 is a schematic view of the acid circulation device according to the present invention;

FIG. 4 is a schematic view of a rinsing apparatus according to the present invention;

FIG. 5 is a schematic view of the spray assembly of the present invention;

FIG. 6 is a schematic diagram of an acid separation module according to the present invention;

wherein, 1, a feeding device; 2. an acid dipping device; 3. a rinsing device; 4. a drying device; 5. an acid leaching tank; 6. acid washing solution; 7. a first transfer roller brush; 8. a steel belt; 9. cleaning the roller brush; 10. a communicating pipe; 11. an electrically operated valve; 12. a circulation pump; 13. a circulation pipe; 14. a filtration tank; 15. a filter screen box; 16. rinsing the cover body; 17. a second transfer roller brush; 18. a connecting flange; 19. installing a flange; 20. an injection pipe; 21. a pipe cap; 22. a sleeve; 23. a high pressure nozzle; 24. an acid liquor separation assembly; 25. a filter cartridge; 26. an acid liquor separation box; 27. a clear water pipe; 28. an acid liquor pipe; 29. a feeding manipulator; 30. a feeding conveyor belt.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

Referring to FIGS. 1 to 6, the present invention provides a pickling apparatus including

The feeding device 1 is used for placing a steel strip 8 to be processed on a production line;

an inlet of the pickling device 2 is communicated with an outlet of the feeding device 1, and the pickling device 2 is used for pickling the steel strip 8; an acid liquor circulating component is arranged at the bottom end of the pickling device 2;

the inlet of the rinsing device 3 is communicated with the outlet of the pickling device 2, and the rinsing device 3 is used for rinsing the acid liquor remained on the surface of the steel strip 8; the rinsing device 3 is communicated with an acid liquor separation component 24; a spray component is arranged in the rinsing device 3;

and an inlet of the drying device 4 is communicated with an outlet of the rinsing device 3, and the drying device 4 is used for drying and stacking the rinsed steel strips 8.

According to the utility model, the steel strip 8 to be pickled is transferred to the pickling device through the feeding device 1 and is sent into the pickling device 2, the steel strip 8 is sent into the rinsing device 3 for cleaning after being pickled, and is finally dried through the drying device 4 and then stacked or transferred to the next process, so that the automation of pickling the steel strip 8 is realized, the manual labor intensity is reduced, and the efficiency is improved; an acid liquor circulating assembly is arranged below the pickling device 2, so that impurities falling from the steel strip 8 in the pickling process can be filtered, and the influence of accumulation of the impurities in the pickling device 2 on the pickling effect is prevented; the rinsing device 3 behind the pickling device 2 sprays clean water through the spraying assembly to rinse the steel strip 8, so that acid liquor residues on the surface of the steel strip 8 are cleaned, the panel of the steel strip 8 is prevented from yellowing and blackening, and the next procedure is facilitated; the spraying assembly is different from the immersion type rinsing in the prior art, but is changed into the spraying type rinsing, so that the cleaning is realized, and meanwhile, the sprayed water is clean clear water and does not have acid liquor residue.

Further, the feeding assembly comprises a feeding mechanical arm 29 and a feeding conveyor belt 30, the feeding mechanical arm 29 grabs and places the stacked steel strip 8 on the feeding conveyor belt 30, and the feeding conveyor belt 30 sends the steel strip 8 into the pickling device 2; the feeding manipulator 29 and the feeding conveyor belt 30 can be selected according to the actual production area requirements and the production line arrangement, and both are common transfer and transfer devices of modern production lines, and are not further described herein.

According to a further optimized scheme, the pickling device 2 comprises a pickling tank 5, pickling solution 6 is filled in the pickling tank 5, and a first conveying roller brush 7 is rotatably connected in the pickling tank 5; the pickling tank 5 is sequentially divided into a descending section, a horizontal section and a rising section along the running direction of the steel strip 8; the first conveying roller brush 7 is arranged along the fluctuation of the pickling tank 5, and the rotating direction of the first conveying roller brush 7 is the same as the running direction of the steel strip 8. The steel strip 8 conveyed from the feeding conveyor belt 30 enters a first conveyor roller brush 7, is driven by the first conveyor roller brush 7 to advance, enters the pickling tank 5, and sequentially runs along the descending section, the horizontal section and the ascending section, and in the running process, the pickling solution 6 in the pickling tank 5 is used for pickling the steel strip 8; the descending section, the horizontal section and the ascending section are arranged to reasonably utilize space, the pickling tank 5 is filled with enough pickling solution 6, the frequency of replacing the pickling solution 6 is reduced, and the continuity of the production line is improved; the first conveying roller brush 7 can not only drive the steel belt 8 to move forward, but also scrub the surface of the steel belt 8, and the pickling effect is improved.

Further, first conveying roller brush 7 includes the motion roller that a plurality of upper and lower correspondences set up, and steel band 8 gos forward between the motion roller that two-layer corresponds, brings steel band 8 into pickle 6 at the in-process that gos forward, and 8 surfaces on the steel band can also be scrubbed at the in-process that drives steel band 8 and gos forward to the motion roller simultaneously, and pickle 6 corrodes the oxide, and 8 surface adhesion's on the steel band impurity will be brushed by the motion roller under, improve the pickling effect.

Further, the pickling solution 6 is a solution containing a certain proportion of strong acid, and can react with the oxide layer on the surface of the steel strip 8 to remove the oxide layer; strong acids include, but are not limited to, hydrochloric acid and sulfuric acid.

According to a further optimized scheme, the tail end of the first conveying roller brush 7 is provided with a cleaning roller brush 9, and the tail end of the cleaning roller brush 9 is communicated with the rinsing device 3; the cleaning roller brush 9 comprises two rows of brush rollers which are arranged in parallel, the steel belt 8 passes between the two rows of brush rollers, and the brush rollers are in rolling contact with the steel belt 8. The effect of cleaning roller brush 9 is that the acidizing fluid on scraping the steel band 8 surface after the pickling remains, reduces the waste of pickle 6, scrubs the impurity on steel band 8 surface again simultaneously. The position of cleaning roller brush 9 place is not higher than the import of first conveying roller brush 7, and there is clean platform at the top of rising the section, and clean platform is less than the liquid level of pickle 6, and the acidizing fluid and the impurity of cleaning roller brush 9 scraping under the brush directly fall into pickle 6 in, reduce the waste of pickle 6.

Furthermore, the cleaning platform is arranged in an inclined mode, the inclined low point faces the horizontal section, impurity fragments which are scraped by the cleaning roller brush 9 and brushed down slide into the horizontal section along the inclined plane conveniently, and then circulation purification is carried out by the acid liquor circulation assembly.

According to a further optimization scheme, the acid liquor circulation assembly comprises a communicating pipe 10 communicated with the bottom end of the horizontal section, and an electric valve 11 is arranged in the communicating pipe 10; the other end of the communicating pipe 10 is communicated with an inlet of a filtering component, an outlet of the filtering component is connected with an inlet of a circulating pipe 13 through a circulating pump 12, and an outlet of the circulating pipe 13 is communicated with the bottom walls of the descending section and the ascending section; the filtering component comprises a filtering tank 14, and a filtering screen box 15 is detachably connected to the inlet of the filtering tank 14; the outlet of the filter screen box 15 is communicated with the inlet of the circulating pump 12. The pickling solution 6 flows into the filter tank 14 from the communicating pipe 10, impurities fall into the filter screen box 15 after being filtered by the filter screen box 15 in the filter tank 14, and the filtered pickling solution 6 is pumped into the circulating pipe 13 by the circulating pump 12 and flows back to the pickling tank 5.

Further, an acid concentration analyzer (not shown in the figure) is arranged in the filter tank 14 and electrically connected with the control assembly (not shown in the figure), the acid concentration analyzer adopts a CCD image detector to measure the position of the boundary line, a CCD linear array used on a CCD detector chip comprises 2048 independent pixel points, the optical detector converts an optical image into an electrical signal point by point and a group of pulse signals shows that a high pulse corresponds to a bright area photocell, and the microprocessor determines the accurate position of the boundary line and converts the accurate position into a reading in a certain concentration unit; and simultaneously, the reading and the pulse signal of the acid concentration analyzer are transmitted to the control assembly, the control assembly analyzes the pulse signal, and acid is supplemented when the concentration of the strong acid in the filtered pickling solution 6 is low through analysis until the concentration meets the requirement.

Furthermore, the acid concentration analyzer is preferably an MPR E-Scan refractive acid concentration analyzer, which is an existing product, and the principle and the using method thereof are the prior art, and are not described herein again; the control component is a common automatic control element, including but not limited to a PLC single chip, and is not described herein for the prior art.

Further, the bottom slope of horizontal segment sets up, and communicating pipe 10 sets up the minimum on the inclined plane, makes things convenient for the impurity of horizontal segment bottom surface to flow into in communicating pipe 10.

Further, the electric valve 11 is a one-way valve which can be electrically controlled to be opened and closed, and only allows the pickling solution 6 to flow from the pickling tank 5 to the circulating assembly; the electric valve 11 is prior art and will not be described in detail herein.

Furthermore, the number of the circulating pumps 12 in this embodiment is two, and the two circulating pipes 13 are respectively communicated with the top end of the descending section and the cleaning platform, and the pickling solution 6 is injected from both sides, so as to ensure the uniform concentration of the pickling solution 6 in the pickling tank 5.

In a further optimized scheme, the rinsing device 3 comprises a rinsing cover body 16, and a second conveying roller brush 17 is rotatably connected in the rinsing cover body 16 along the running direction of the steel strip 8; the spraying components are arranged at the upper end and the lower end of the rinsing cover body 16; the direction of the spraying assembly is vertical to the running direction of the steel strip 8; the spraying assemblies are arranged on both sides of the second transfer roller brush 17; the spraying assembly comprises a connecting flange 18, the outlet of the connecting flange 18 is connected with a mounting flange 19, and the mounting flange 19 is fixedly mounted with the side wall of the rinsing cover body 16; an outlet of the mounting flange 19 is provided with an injection pipe 20, and the other end of the injection pipe 20 is sealed by a pipe cap 21; one end of the spray pipe 20, which is provided with a pipe cap 21, is detachably connected with a sleeve 22 fixed on the side wall of the rinsing cover body 16; the side wall of the injection pipe 20 facing the second transfer roller brush 17 is communicated with a plurality of high-pressure nozzles 23. The spraying components are respectively arranged at the upper side and the lower side of the second conveying roller brush 17 and fixedly mounted with the outer side of the side wall of the rinsing cover body 16 through mounting flanges 19, a spraying pipe 20 extends into the rinsing cover body 16, a sleeve 22 coaxial with the spraying pipe 20 is welded on the inner wall of the side wall at the other end of the rinsing cover body 16, and the other end of the spraying pipe 20 is plugged through a pipe cap 21 and then inserted into the sleeve 22 for overlapping. The connecting flange 18 is in communication with a source of rinsing water (not shown); one side of the injection pipe 20, which faces the second conveying roller brush 17, is communicated with a plurality of high-pressure nozzles 23, the clean water in the injection pipe 20 is pressurized and then injected to the steel strip 8, the surface of the steel strip 8 is rinsed, the acid liquor residues are washed, and the clean water is pressurized and injected by the high-pressure nozzles 23, so that the flushing force is improved, and the flushing effect is improved; the second transfer roller brush 17 is identical in principle and structure to the first transfer roller brush 7, and brushes the surface of the steel strip 8 while transferring, so that the liquid residue and impurities on the surface of the steel strip 8 are cleaned, and the rinsing quality is improved. The steel strip 8 after pickling and preliminary cleaning enters a second conveying roller brush 17, when the steel strip 8 is rinsed in a cover body 16, a high-pressure nozzle 23 of a spraying assembly sprays clean water to the steel strip 8, the second conveying roller brush 17 is matched to clean residual impurities and pickling solution 6 on the surface of the steel strip 8, and the falling liquid falls to the bottom surface of the rinsing cover body 16 and enters an acid liquor separation assembly 24; the rinsing cover body 16 covers the rinsing process to prevent the sprayed clean water from splashing.

In a further optimized scheme, the acid liquor separation component 24 is communicated with the lower end of the rinsing cover body 16, and the outlet of the acid liquor separation component 24 is respectively communicated with the spraying component and the pickling tank 5; the acid liquor separation assembly 24 comprises a filter cylinder 25 communicated with the bottom end of the rinsing cover body 16, an outlet of the filter cylinder 25 is communicated with an acid liquor separation box 26, a clear water outlet of the acid liquor separation box 26 is communicated with the spraying assembly through a clear water pipe 27, and an acid liquor outlet of the acid liquor separation box 26 is communicated with the acid pickling tank 5 through an acid liquor pipe 28. The acid liquor separation component 24 is mainly used for filtering and separating rinsing water for rinsing the steel strip 8, impurities falling off from the steel strip 8 are separated and filtered through the filter cylinder 25, the separated acid-containing water is treated and separated to form acid-containing water and clear water with the same concentration as that of the acid liquor 6, and the treated acid-containing water enters a liquid storage tank (not shown in the figure) of the acid soaking tank 5 and is used as a raw material of the acid liquor 6 of the acid soaking tank 5; the clean water enters a water storage tank (not shown) of the spraying assembly and is sprayed out through a high-pressure nozzle 23 on the spraying pipe 20 to rinse the steel strip 8 after being soaked.

Furthermore, the acid-containing water can be filtered by a polytetrafluoroethylene membrane or a two-in-one filter press, and filter cloth of the filter press is acid-resistant cloth with the mesh size of more than 500. Both of these are acid liquid separation devices commonly used in the prior art, and are not described herein again for the sake of the prior art.

The using method comprises the following steps:

injecting pickling solution 6 into the pickling tank 5, and opening the electric valve 11 and the circulating pump 12 until the pickling solution 6 flows out from both outlets of the circulating pipe 13; the addition of pickling liquid 6 is continued until the level of pickling liquid 6 is over the cleaning platform and under the cleaning roller brush 9.

The loading device 1 is started, and the stacked steel strip 8 is transferred to the loading conveyor belt 30 by the loading manipulator 29 and is fed into the inlet of the first conveyor roller brush 7.

Starting a first conveying roller brush 7 and a cleaning roller brush 9 to drive a steel strip 8 to sequentially move forward along a descending section, a horizontal section and a rising section, wherein in the process of moving forward, a pickling solution 6 in a pickling tank 5 is used for pickling the steel strip 8, the surface of the steel strip 8 is scrubbed, the oxide is corroded by the pickling solution 6, and impurities attached to the surface of the steel strip 8 are brushed by a moving roller; the tail end of the first conveying roller brush 7 is communicated with a cleaning roller brush 9, after the steel strip 8 enters the cleaning roller brush 9, the cleaning roller brush 9 can scrape the residue of the pickling solution 6 on the surface of the steel strip 8 after pickling, and simultaneously scrub impurities on the surface of the steel strip 8 again, and the scrubbed pickling solution 6 and the impurities directly fall onto a cleaning platform; the pickling solution 6 at the bottom end of the horizontal section and impurities flow into the acid solution circulating assembly together, and then flow back into the pickling tank 5 from the descending section and the top surface of the cleaning platform respectively after being filtered, and simultaneously flush the impurities on the top surface of the cleaning platform into the horizontal section for continuous circulation.

The rinsing device 3 is started, the cleaning roller brush 9 sends the steel strip 8 which is soaked in acid and cleaned into the rinsing cover body 16, after the steel strip 8 is rinsed in the rinsing cover body 16, the high-pressure nozzle 23 of the spraying assembly sprays clean water to the steel strip 8, the residual impurities on the surface of the steel strip 8 and the pickling solution 6 are cleaned by matching with the second conveying roller brush 17, the impurities fall to the bottom surface of the rinsing cover body 16, and the dropped liquid enters the acid liquor separation assembly 24.

And starting the drying assembly, drying the rinsed steel strip 8 by the drying assembly, drying the moisture on the surface, and stacking or transferring to the next procedure.

The utility model has simple structure and high automation degree, separates the pickling process from the rinsing process, simultaneously uses the pure water injection to replace the existing rinsing mode of the water pool immersion, has good rinsing quality, does not have acid liquor residue, provides convenience for the next process, and has good final product quality and high benefit.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The above embodiments are only for describing the preferred mode of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.

Claims (9)

1. A pickling device is characterized in that: comprises that

The device comprises a feeding device (1), a processing device and a control device, wherein the feeding device (1) is used for placing a steel strip (8) to be processed on a production line;

an inlet of the pickling device (2) is communicated with an outlet of the feeding device (1), and the pickling device (2) is used for pickling the steel strip (8); an acid liquor circulating component is arranged at the bottom end of the pickling device (2);

the inlet of the rinsing device (3) is communicated with the outlet of the pickling device (2), and the rinsing device (3) is used for rinsing the acid liquor remained on the surface of the steel strip (8); the rinsing device (3) is communicated with an acid liquor separation component; a spraying assembly is arranged in the rinsing device (3);

and the inlet of the drying device (4) is communicated with the outlet of the rinsing device (3), and the drying device (4) is used for drying the rinsed steel strip (8) and stacking the dried steel strip.

2. The pickling device according to claim 1, wherein: the pickling device (2) comprises a pickling tank (5), pickling liquid (6) is filled in the pickling tank (5), and a first conveying roller brush (7) is rotationally connected in the pickling tank (5); the pickling tank (5) is sequentially divided into a descending section, a horizontal section and a rising section along the running direction of the steel strip (8); the first conveying roller brush (7) is arranged along the fluctuation of the pickling tank (5), and the rotating direction of the first conveying roller brush (7) is the same as the running direction of the steel strip (8).

3. The pickling device according to claim 2, characterized in that: a cleaning roller brush (9) is arranged at the tail end of the first conveying roller brush (7), and the tail end of the cleaning roller brush (9) is communicated with the rinsing device (3); the cleaning roller brush (9) comprises two rows of parallel brush rollers, the steel belt (8) passes between the two rows of brush rollers, and the brush rollers are in rolling contact with the steel belt (8).

4. The pickling device according to claim 3, wherein: the acid liquor circulating assembly comprises a communicating pipe (10) communicated with the bottom end of the horizontal section, and an electric valve (11) is arranged in the communicating pipe (10); the other end of the communicating pipe (10) is communicated with an inlet of a filtering component, an outlet of the filtering component is connected with an inlet of a circulating pipe (13) through a circulating pump (12), and an outlet of the circulating pipe (13) is communicated with the bottom walls of the descending section and the ascending section.

5. The pickling device according to claim 4, wherein: the filter assembly comprises a filter tank (14), and a filter screen box (15) is detachably connected to an inlet of the filter tank (14); the outlet of the filter screen box (15) is communicated with the inlet of the circulating pump (12).

6. The pickling device according to claim 5, wherein: the rinsing device (3) comprises a rinsing cover body (16), and a second conveying roller brush (17) is rotatably connected in the rinsing cover body (16) along the running direction of the steel belt (8); the spraying components are arranged at the upper end and the lower end of the rinsing cover body (16); the direction of the spraying assembly is vertical to the running direction of the steel strip (8); the spraying components are arranged on two sides of the second conveying roller brush (17).

7. The pickling device according to claim 6, wherein: the spraying assembly comprises a connecting flange (18), an outlet of the connecting flange (18) is connected with a mounting flange (19), and the mounting flange (19) is fixedly mounted with the side wall of the rinsing cover body (16); an outlet of the mounting flange (19) is provided with an injection pipe (20), and the other end of the injection pipe (20) is sealed through a pipe cap (21); one end of the spray pipe (20) provided with a pipe cap (21) is detachably connected with a sleeve (22) fixed on the side wall of the rinsing cover body (16); the side wall of the injection pipe (20) facing the second conveying roller brush (17) is communicated with a plurality of high-pressure nozzles (23).

8. The pickling device according to claim 7, wherein: the acid liquor separation assembly (24) is communicated with the lower end of the rinsing cover body (16), and the outlet of the acid liquor separation assembly (24) is respectively communicated with the spraying assembly and the acid soaking pool (5).

9. The pickling device according to claim 8, wherein: the acid liquor separation assembly (24) comprises a filter cylinder (25) communicated with the bottom end of the rinsing cover body (16), an outlet of the filter cylinder box (15) is communicated with an acid liquor separation box (26), a clear water outlet of the acid liquor separation box (26) is communicated with the spraying assembly through a clear water pipe (27), and an acid liquor outlet of the acid liquor separation box (26) is communicated with the acid pickling tank (5) through an acid liquor pipe (28).

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