Pickling equipment for steel coil production

Abstract

The utility model relates to the field of steel coils, in particular to pickling equipment for steel coil production, which comprises a pickling tank, two groups of circulating tanks are arranged on the inner walls of two sides of the pickling tank, a filter box is mounted at the bottom of the outer wall of one side of the pickling tank, a filter component is mounted in the filter box, and a circulating structure is mounted on the pickling tank in the circulating tanks; the circulating structure comprises a conveying pipe, liquid outlets formed in the two ends of the outer wall of one side of the conveying pipe at equal intervals, an anti-corrosion pipe connected to the outer wall of the top end of the conveying pipe and an anti-corrosion pump installed on the outer wall of one side of the filtering box. The filter assembly comprises a filter plate and a sealing plate welded to the outer wall of one side of the filter plate. According to the corrosion-resistant pump, a solution in the pickling tank is pumped through the water inlet pipe and conveyed into the conveying pipe through the corrosion-resistant pipe, the solution is sprayed out through the liquid outlet in the conveying pipe, and the solution irregularly flowing in the pickling tank works on metal, so that the pickling uniformity is improved, and the qualified rate of products is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel coils, and particularly relates to an acid pickling device for steel coil production. Background Art

[0002] The method of using an acid solution to remove the scale and rust on the surface of steel is called acid pickling. It is a method for cleaning the metal surface; generally, the workpiece is immersed in an aqueous solution such as sulfuric acid to remove the oxide film on the metal surface. It is a pretreatment or intermediate treatment for processes such as electroplating, enameling, and rolling; a steel coil, also known as rolled steel. The steel is hot-pressed or cold-pressed into a coil shape. For convenient storage and transportation and for various processing (such as processing into steel plates, steel strips, etc.);

[0003] When pickling the metal, due to the unevenness between the metal inside and the solution during pickling, the surface of the metal after pickling is uneven, resulting in the rejection and downgrading of the steel coil, and it is necessary to transport the steel coil back for re-coiling and repair. Content of the Utility Model

[0004] The purpose of the utility model is to address the above-mentioned problems and deficiencies, and propose an acid pickling device for steel coil production: the corrosion-resistant pump extracts the solution in the acid pickling tank through the water inlet pipe and transports it to the delivery pipe through the anti-corrosion pipe. The liquid outlet on the delivery pipe sprays out the solution, and the irregularly flowing solution in the acid pickling tank operates on the metal, improving the uniformity of acid pickling and the qualification rate of products, and solving the problem of the decrease in the qualification rate caused by uneven acid pickling.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An acid pickling device for steel coil production includes an acid pickling tank. Two groups of circulation grooves are provided on the inner walls of both sides of the acid pickling tank, and a filter box is installed at the bottom of the outer wall of one side of the acid pickling tank. A filtering component is installed in the filter box, and a circulation structure is installed in the acid pickling tank in the circulation groove; the circulation structure includes a delivery pipe, liquid outlets equidistantly arranged at both ends of the outer wall of one side of the delivery pipe, an anti-corrosion pipe connected to the outer wall of the top of the delivery pipe, and a corrosion-resistant pump installed on the outer wall of one side of the filter box; the filtering component includes a filter plate and a sealing plate welded to the outer wall of one side of the filter plate.

[0007] Preferably, the input end of the corrosion-resistant pump is connected with a water inlet pipe, and a cylindrical filter screen is installed on the inner wall of one end of the water inlet pipe, and the other end of the water inlet pipe communicates with the filter box.

[0008] Preferably, the filter box communicates with the acid pickling tank, and a sealing groove is provided on the outer wall of one side of the filter box. The sealing plate is adapted to the sealing groove, and a sealing strip is placed on the outer wall of one side of the sealing plate;

[0009] According to the above scheme: the corrosion-resistant pump draws the solution from the pickling tank through the water inlet pipe and transports it to the delivery pipe through the anti-corrosion pipe. The outlet on the delivery pipe sprays the solution. The irregularly flowing solution in the pickling tank works on the metal, improving the uniformity of pickling and the qualified rate of the product.

[0010] Preferably, the cross section of the filter plate is a "J"-shaped structure, and a handle is welded to one side of the outer wall of the sealing plate, and a leg is installed on the bottom outer wall of the pickling tank;

[0011] According to the above scheme: the filter plate is pulled out through the sealing plate, and the impurities on the filter plate are cleaned, so as to facilitate the collection of impurities in the solution and facilitate subsequent treatment.

[0012] Preferably, a protective plate is installed on the inner wall of the pickling tank at the circulation groove, and a through hole is opened on the outer wall of the protective plate at the liquid outlet.

[0013] Preferably, the output end of the corrosion-resistant pump is connected to one end of the anti-corrosion pipe, and a fixing plate is installed on the top outer wall of the delivery pipe, and the fixing plate is installed on the inner wall of the circulation tank.

[0014] Preferably, the corrosion-resistant pump is connected to the switch via a wire, and the switch is connected to the power supply via a wire.

[0015] The beneficial effects of the utility model are:

[0016] The corrosion-resistant pump draws the solution from the pickling tank through the water inlet pipe and transports it to the delivery pipe through the anti-corrosion pipe. The liquid outlet on the delivery pipe sprays the solution. The irregularly flowing solution in the pickling tank works on the metal, improving the uniformity of pickling and the qualified rate of the product;

[0017] Pull out the filter plate through the sealing plate and clean the impurities on the filter plate to facilitate the collection of impurities in the solution and subsequent processing. Brief Description of the Figures

[0018] Figure 1 This is a schematic diagram of the overall structure of a pickling device for steel coil production proposed by the utility model;

[0019] Figure 2 It is a schematic diagram of the internal structure of a pickling device for steel coil production proposed by the utility model;

[0020] Figure 3 It is a schematic diagram of the circulation structure of a pickling device for steel coil production proposed by the utility model;

[0021] Figure 4 This is a schematic diagram of the expanded structure of a pickling device for steel coil production proposed by the utility model.

[0022] In the figure: 1 pickling tank, 2 circulation tank, 3 filter box, 4 circulation structure, 5 filter component, 6 leg, 7 delivery pipe, 8 liquid outlet, 9 fixing plate, 10 anti-corrosion pipe, 11 corrosion-resistant pump, 12 water inlet pipe, 13 cylindrical filter screen, 14 protection plate, 15 sealing groove, 16 filter plate, 17 sealing plate. Detailed implementation manner

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Embodiment

[0024] Refer to Figure 1 and Figure 4 , a pickling device for steel coil production, including a pickling tank 1. Two groups of circulation tanks 2 are provided on the inner walls on both sides of the pickling tank 1. And a filter box 3 is installed at the bottom of the outer wall on one side of the pickling tank 1. A filter component 5 is installed in the filter box 3. And a circulation structure 4 is installed in the pickling tank 1 in the circulation tank 2;

[0025] The filter component 5 includes a filter plate 16 and a sealing plate 17 welded to the outer wall on one side of the filter plate 16. Driven by the corrosion-resistant pump 11, the solution in the pickling tank 1 moves towards the position of the filter box 3. The solution passes through the filter plate 16 and the cylindrical filter screen 13 and then immerses into the corrosion-resistant pump 11 for circulation, facilitating filtration;

[0026] The filter box 3 is communicated with the pickling tank 1. And a sealing groove 15 is provided on the outer wall on one side of the filter box 3. And the sealing plate 17 is adapted to the sealing groove 15. And a sealing strip is placed on the outer wall on one side of the sealing plate 17. The filter plate 16 is pulled out through the sealing plate 17, and the impurities on the filter plate 16 are cleaned;

[0027] The cross-section of the filter plate 16 is a "J" - shaped structure. And a handle is welded to the outer wall on one side of the sealing plate 17. Legs 6 are installed on the bottom outer wall of the pickling tank 1. After the sealing plate 17 in the filter box 3 is removed, it will be removed together with the filter plate 16, facilitating the filtration of impurities and the subsequent treatment of impurities. Embodiment

[0028] Refer to Figures 1-3 , the circulation structure 4 includes a delivery pipe 7, liquid outlets 8 equidistantly opened at both ends of the outer wall on one side of the delivery pipe 7, an anti-corrosion pipe 10 connected to the outer wall at the top of the delivery pipe 7, and a corrosion-resistant pump 11 installed on the outer wall on one side of the filter box 3. The solution flowing in the pickling tank 1 avoids the precipitation of residual impurities during pickling, facilitating circulation and pickling;

[0029] The input end of the corrosion-resistant pump 11 is connected to the water inlet pipe 12, and a cylindrical filter screen 13 is installed on the inner wall of one end of the water inlet pipe 12. The other end of the water inlet pipe 12 is communicated with the filter box 3. The corrosion-resistant pump 11 pumps the solution through the anti-corrosion pipe 10 and the water inlet pipe 12 and transports it into the delivery pipe 7, which is convenient for circular transportation and stirring the solution in the pickling tank 1, improving the pickling efficiency and uniformity.

[0030] A protective plate 14 is installed on the inner wall of the pickling tank 1 at the position of the circulation tank 2, and through holes are opened at the liquid outlet 8 on the outer wall of the protective plate 14. The delivery pipe 7 is located at the circulation tank 2. The protective plate 14 protects the protective tank 2, preventing the metal from directly contacting the delivery pipe 7, facilitating pickling and improving the safety of the components.

[0031] The output end of the corrosion-resistant pump 11 is connected to one end of the anti-corrosion pipe 10, and a fixing plate 9 is installed on the outer wall of the top of the delivery pipe 7. The fixing plate 9 is installed on the inner wall of the circulation tank 2. The metal plate is immersed in the solution in the pickling tank 1, and the solution pickles the metal. The irregularly flowing solution in the pickling tank 1 operates on the metal, improving the uniformity of pickling.

[0032] The corrosion-resistant pump 11 is connected to the switch through a wire, and the switch is connected to the power supply through a wire. The corrosion-resistant pump 11 pumps the solution in the pickling tank 1 through the water inlet pipe 12 and transports it into the delivery pipe 7 through the anti-corrosion pipe 10. The liquid outlet 8 on the delivery pipe 7 sprays out the solution, stirring and mixing the solution inside the pickling tank 1, making the solution in the pickling tank 1 in a flowing state.

[0033] Working principle: During use, pour the solution used for pickling into the pickling tank 1. Start the corrosion-resistant pump 11 to pump the solution in the pickling tank 1 through the water inlet pipe 12 and transport it into the delivery pipe 7 through the anti-corrosion pipe 10. The liquid outlet 8 on the delivery pipe 7 sprays out the solution, stirring and mixing the solution inside the pickling tank 1, making the solution in the pickling tank 1 in a flowing state. At this time, immerse the metal plate in the solution in the pickling tank 1, and the solution pickles the metal. The irregularly flowing solution in the pickling tank 1 operates on the metal, improving the uniformity of pickling. Then take out the metal from the pickling tank 1 to complete the pickling of the metal. Driven by the corrosion-resistant pump 11, the solution in the pickling tank 1 moves towards the filter box 3. The solution passes through the filter plate 16 and the cylindrical filter screen 13 and then immerses into the corrosion-resistant pump 11 for circulation. The shape of the filter plate 16 accumulates the intercepted impurities at the bottom of the filter plate 16. After a period of time, after draining or reducing the solution in the pickling tank 1, pull out the filter plate 16 through the sealing plate 17 and clean the impurities on the filter plate 16.

[0034] The exemplary embodiments of the present utility model are described in detail with reference to the embodiments in the text. However, those skilled in the art can understand that, without departing from the concept of the present utility model, various variations and modifications can be made to the above specific embodiments, and various combinations can be made to the technical features and structures proposed by the present utility model, without exceeding the protection scope of the present utility model. The protection scope of the present utility model is determined by the appended claims. The foregoing description of the specific exemplary embodiments of the present utility model is not intended to limit the present utility model to the precise forms disclosed, and it is obvious that many changes and variations can be made in accordance with the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present utility model and its practical applications, so that those skilled in the art can implement and utilize various different exemplary embodiments of the present utility model, as well as various different selections and changes. The scope of the present utility model is intended to be defined by the claims and their equivalents.

Claims

1. A pickling device for steel coil production, comprising a pickling tank (1), characterized in that: Two sets of circulation grooves (2) are provided on the inner walls of both sides of the pickling tank (1), and a filter box (3) is installed at the bottom of the outer wall of one side of the pickling tank (1), a filter assembly (5) is installed in the filter box (3), and a circulation structure (4) is installed in the pickling tank (1) located in the circulation groove (2); The circulation structure (4) comprises a delivery pipe (7), liquid outlets (8) equidistantly provided at both ends of an outer wall of one side of the delivery pipe (7), an anti-corrosion pipe (10) connected to the outer wall of the top end of the delivery pipe (7), and a corrosion-resistant pump (11) installed on the outer wall of one side of the filter box (3); The filter assembly (5) comprises a filter plate (16) and a sealing plate (17) welded to an outer wall of one side of the filter plate (16).

2. A pickling equipment for steel coil production according to claim 1, characterized in that: The input end of the corrosion-resistant pump (11) is connected to a water inlet pipe (12), and a cylindrical filter screen (13) is installed on the inner wall of one end of the water inlet pipe (12), and the other end of the water inlet pipe (12) is connected to a filter box (3).

3. The pickling equipment for steel coil production according to claim 1, characterized in that: The filter box (3) is in communication with the pickling tank (1), and a sealing groove (15) is provided on one outer wall of the filter box (3), the sealing plate (17) is adapted to the sealing groove (15), and a sealing strip is placed on one outer wall of the sealing plate (17).

4. A pickling equipment for steel coil production according to claim 1, characterized in that: The cross section of the filter plate (16) is a "J"-shaped structure, and a handle is welded to one side outer wall of the sealing plate (17), and a support leg (6) is installed on the bottom outer wall of the pickling tank (1).

5. The pickling equipment for steel coil production according to claim 1, characterized in that: A protective plate (14) is installed on the inner wall of the pickling tank (1) at the circulation groove (2), and a through hole is opened on the outer wall of the protective plate (14) at the liquid outlet (8).

6. The pickling equipment for steel coil production according to claim 1, characterized in that: The output end of the corrosion-resistant pump (11) is connected to one end of the corrosion-resistant pipe (10), and a fixing plate (9) is installed on the top outer wall of the delivery pipe (7), and the fixing plate (9) is installed on the inner wall of the circulation tank (2).

7. The pickling equipment for steel coil production according to claim 1, characterized in that: The corrosion-resistant pump (11) is connected to a switch via a wire, and the switch is connected to a power source via a wire.

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