Overflow prevention device of galvanized sheet pickling treatment equipment

Abstract

The utility model relates to an anti-overflow device of galvanized sheet pickling treatment equipment, which belongs to the technical field of galvanized sheet pickling treatment and comprises an anti-overflow mechanism arranged on the left side and the right side of the upper surface of a pickling tank and used for carrying out anti-overflow collection on the pickling tank. The two overflow collecting covers are respectively fixed on the left side and the right side of the upper surface of the pickling tank. According to the anti-overflow device of the galvanized sheet pickling treatment equipment, the anti-overflow mechanisms are arranged on the left side and the right side of the upper surface of the pickling tank, pickling liquid is collected when overflowing, waste and pollution caused by the fact that the pickling liquid directly flows out of the pickling tank are prevented, and when the pickling liquid overflows and flows into the overflow collecting cover, a filter screen plate conducts solid-liquid filtering separation on the pickling liquid, so that the pickling liquid is prevented from overflowing. Solid impurities in the pickling solution are removed, and the pickling solution subjected to solid-liquid separation is drained into the collecting box through the collecting guide pipe to be collected and flows back into the pickling tank through the backflow pipe, so that cyclic utilization of the pickling solution is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of galvanized sheet pickling treatment, in particular to an anti-overflow device for galvanized sheet pickling treatment equipment. Background Art

[0002] In the production process of galvanized sheet, pickling is an important step. The main purpose is to remove the oxide scale and rust on the surface of steel to ensure that the subsequent galvanizing process can proceed smoothly and obtain a high-quality galvanized layer. The main purpose of pickling is to remove the oxides formed on the surface of the workpiece and during the welding process. If these oxides are not thoroughly removed, they will have a serious impact on the subsequent hot-dip galvanizing process. Pickling usually uses acidic solutions such as sulfuric acid to remove the oxide scale and rust on the surface of steel through chemical reactions.

[0003] When the existing galvanized sheet is pickled, the pickling process of the prior art will cause the water level of the pickling liquid in the pickling tank to change due to the galvanized sheet entering and exiting, which may easily cause part of the pickling liquid to overflow along the edge of the pickling tank, resulting in the loss of acid and causing corrosion to the surface of the equipment. Therefore, an anti-overflow device for galvanized sheet pickling treatment equipment is proposed to solve the above problem. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides an anti-overflow device for galvanized sheet pickling equipment, which has the advantages of anti-overflow in galvanized sheet pickling, and solves the problem that in the pickling process of the prior art, the water level of the pickling liquid in the pickling tank changes due to the entry and exit of the galvanized sheet, which easily causes part of the pickling liquid to overflow along the edge of the pickling tank, resulting in the loss of acid and causing corrosion to the equipment surface.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-overflow device for a galvanized sheet pickling treatment equipment, comprising an anti-overflow mechanism arranged on the left and right sides of the upper surface of the pickling tank to prevent overflow and collect the pickling tank;

[0006] The anti-overflow mechanism includes two overflow collection covers, which are respectively fixed on the left and right sides of the upper surface of the pickling tank to collect the overflowed pickling liquid. The inner walls of the two overflow collection covers are provided with filter collection frames, and the inner walls of the left and right sides of the filter collection frames are fixed with slide rails. The outer sides of the slide rails on the left and right sides are provided with filter screen plates to filter and separate the overflowed pickling liquid into solid and liquid. The left and right sides of the pickling tank are provided with reflux components to collect the overflowed pickling liquid and return it to the pickling tank;

[0007] The reflux assembly includes two collecting boxes, which are respectively connected to the left and right sides of the pickling tank. The upper surfaces of the two collecting boxes are connected to collecting ducts connected to two overflow collecting covers, and the front surfaces of the two collecting boxes are connected to reflux pipes connected to the pickling tank to guide the pickling liquid to flow back into the pickling tank.

[0008] Furthermore, the length of the filter screen plate is equal to the length of the filter collection frame, so as to filter impurities from the overflowed pickling liquid.

[0009] Furthermore, the upper surfaces of the two filter collection frames are provided with cleaning handles for moving the filter collection frames out to the outside of the overflow collection cover for cleaning.

[0010] Furthermore, the filter screen plate is an acid-resistant filter screen, which is used to reduce the corrosion effect of the pickling liquid on the filter screen plate.

[0011] Furthermore, the front and rear ends of the filtering and collecting frame are respectively fitted with the front and rear inner walls of the overflow collecting cover to ensure that the collected pickling liquid is completely collected and filtered.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0013] The anti-overflow device of the galvanized sheet pickling treatment equipment has an anti-overflow mechanism arranged on the left and right sides of the upper surface of the pickling tank, which collects the pickling liquid when it overflows, preventing the acid from directly flowing out of the pickling tank to cause waste and pollution. When the pickling liquid overflows and flows into the overflow collection cover, the filter screen performs solid-liquid filtration and separation on the pickling liquid to remove solid impurities therein, and the pickling liquid after solid-liquid separation is drained into the collection box through the collection conduit for collection, and refluxed to the pickling tank through the reflux pipe, thereby realizing the recycling of the pickling liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the anti-overflow mechanism of the utility model;

[0016] Figure 3 For this utility model Figure 2 A schematic diagram of the structure enlargement in the middle;

[0017] Figure 4 It is a schematic diagram of the overflow collection cover of the utility model.

[0018] In the figure: 1, pickling tank; 2, anti-overflow mechanism; 21, overflow collection cover; 22, filter collection frame; 23, slide rail; 24, filter screen; 25, reflux assembly; 251, collection box; 252, collection duct; 253, reflux pipe; 26, cleaning handle. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Example 1: Please refer to Figure 1 In this embodiment, an anti-overflow device for a galvanized sheet pickling treatment equipment includes an anti-overflow mechanism 2 arranged on the left and right sides of the upper surface of the pickling tank 1 to prevent overflow and collect the pickling tank 1.

[0021] Example 2: Please refer to Figure 2-4 On the basis of Example 1, in order to prevent overflow collection of galvanized sheet pickling equipment, the

[0022] The anti-overflow mechanism 2 includes two overflow collection covers 21, which are respectively fixed on the left and right sides of the upper surface of the pickling tank 1 to collect the overflowed pickling liquid. The inner walls of the two overflow collection covers 21 are provided with filter collection frames 22. The overflow collection covers 21 can increase the boundary area of ​​the pickling tank 1. When the pickling liquid overflows, it will flow into the overflow collection cover 21. The left and right inner walls of the filter collection frame 22 are fixed with slide rails 23. The outer sides of the left and right slide rails 23 are provided with filter screens 24 to filter and separate the overflowed pickling liquid into solid and liquid. The filter screens 24 filter and separate the pickling liquid into solid and liquid to remove solid impurities therein. The filter screens 24 ensure that the entire filtering area can participate in the impurity filtering process of the pickling liquid. The left and right sides of the pickling tank 1 are provided with reflux components 25 to collect the overflowed pickling liquid and return it to the pickling tank 1.

[0023] The reflux assembly 25 includes two collecting boxes 251, which are respectively connected to the left and right sides of the pickling tank 1. The upper surfaces of the two collecting boxes 251 are connected to collecting ducts 252 connected to the two overflow collecting covers 21, and the front surfaces of the two collecting boxes 251 are connected to reflux pipes 253 connected to the pickling tank 1 to guide the pickling liquid to flow back into the pickling tank 1. The pickling liquid after solid-liquid separation is drained into the collecting box 251 through the collecting ducts 252 for collection, and flows back to the pickling tank 1 through the reflux pipes 253, thereby realizing the recycling of the pickling liquid.

[0024] In this embodiment, the length of the filter screen plate 24 is equal to the length of the filter collection frame 22, which is used to filter impurities from the overflowing pickling liquid. The upper surfaces of the two filter collection frames 22 are provided with cleaning handles 26, which are used to move the filter collection frames 22 out to the outside of the overflow collection cover 21 for cleaning. The upper surfaces of the filter collection frames 22 are provided with cleaning handles 26, which are convenient for operators to move the filter collection frames 22 out of the overflow collection cover 21 for cleaning and maintain the filtration efficiency. The filter screen plate 24 is an acid-resistant filter screen, which is used to reduce the corrosion effect of the pickling liquid on the filter screen plate 24. The front and rear ends of the filter collection frame 22 are respectively fitted with the front and rear inner walls of the overflow collection cover 21 to ensure that the collected pickling liquid is completely collected and filtered.

[0025] The working principle of the above embodiment is:

[0026] When the galvanized sheet pickling equipment is used for overflow prevention and collection, the overflow collection hood 21 can increase the boundary area of ​​the pickling tank 1. When the pickling liquid overflows, it will flow into the overflow collection hood 21, and then the filter plate 24 performs solid-liquid filtration and separation on the pickling liquid to remove solid impurities therein. The filter plate 24 ensures that the entire filtration area can participate in the impurity filtration process of the pickling liquid. The upper surface of the filter collection frame 22 is provided with a cleaning handle 26, which is convenient for the operator to remove the filter collection frame 22 from the overflow collection hood 21 for cleaning to maintain the filtration efficiency. The pickling liquid after solid-liquid separation is drained into the collection box 251 for collection through the collection conduit 252, and is returned to the pickling tank 1 through the reflux pipe 253 to achieve the recycling of the pickling liquid.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0028] If this patent discloses or involves components or structural parts that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, connected by bolts or screws), or as: a non-detachable fixed connection (for example, riveting, welding). Of course, the fixed connection can also be replaced by an integrated structure (for example, manufactured by a casting process) (except where it is obviously impossible to use an integrated forming process).

[0029] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. An anti-overflow device for galvanized sheet pickling equipment, characterized in that: : comprising an anti-overflow mechanism (2) arranged on the left and right sides of the upper surface of the pickling tank (1) to prevent overflow and collect the pickling tank (1); The anti-overflow mechanism (2) comprises two overflow collection covers (21), the two overflow collection covers (21) are respectively fixed on the left and right sides of the upper surface of the pickling tank (1) to collect overflow pickling liquid, the inner walls of the two overflow collection covers (21) are both provided with filter collection frames (22), the left and right inner walls of the filter collection frames (22) are both fixed with slide rails (23), and the outer sides of the left and right slide rails (23) are provided with filter screen plates (24) to filter and separate the overflowed pickling liquid into solid and liquid, and the left and right sides of the pickling tank (1) are provided with reflux components (25) to collect the overflowed pickling liquid and return it to the pickling tank (1); The reflux assembly (25) comprises two collecting boxes (251), the two collecting boxes (251) being connected to the left and right sides of the pickling tank (1) respectively, the upper surfaces of the two collecting boxes (251) being connected to collecting ducts (252) connected to two overflow collecting hoods (21), and the front surfaces of the two collecting boxes (251) being connected to reflux pipes (253) connected to the pickling tank (1) for guiding the pickling liquid to flow back into the pickling tank (1).

2. The anti-overflow device of the galvanized sheet pickling treatment equipment according to claim 1, characterized in that: The length of the filter screen plate (24) is equal to the length of the filter collection frame (22), and is used to filter impurities from the overflowed pickling liquid.

3. The anti-overflow device of the galvanized sheet pickling treatment equipment according to claim 1, characterized in that: The upper surfaces of the two filter collection frames (22) are both provided with cleaning handles (26) for moving the filter collection frames (22) out to the outside of the overflow collection cover (21) for cleaning.

4. The anti-overflow device for galvanized sheet pickling equipment according to claim 1, characterized in that: The filter screen plate (24) is an acid-resistant filter screen, which is used to reduce the corrosion effect of the pickling liquid on the filter screen plate (24).

5. The anti-overflow device for galvanized sheet pickling equipment according to claim 1, characterized in that: The front and rear ends of the filtering and collecting frame (22) are respectively fitted with the front and rear inner walls of the overflow collecting cover (21) to ensure that the collected pickling liquid is completely collected and filtered.

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