Pickling equipment for strip steel production

Abstract

The utility model discloses pickling equipment for strip steel production, and relates to the technical field of strip steel production. The pickling device comprises a pickling box, a hydrochloric acid solution is contained in the pickling box, two sets of guide rollers are rotationally connected to the inner wall of the pickling box, the guide rollers on the left side are lower than the guide rollers on the right side, and a spray washing assembly and a scraping washing assembly which are used for pickling the surface of strip steel are arranged on the surface of the pickling box. A liquid discharging pipe is fixedly inserted in the middle of the bottom surface of the pickling box, a valve is arranged on the surface of the liquid discharging pipe, a treatment box is fixedly connected to the bottom end of the liquid discharging pipe, and an adjusting assembly used for supplementing a hydrochloric acid solution into the pickling box is arranged on the surface of the treatment box; according to the pickling device, the effect of automatically controlling the pH value of the pickling solution conveniently is achieved in the using process, it is guaranteed that the pH value of the pickling solution is within the application range, the pickling effect is guaranteed accordingly, impurities in the pickling solution can be automatically cleaned, and the whole pickling process is more convenient, faster and more labor-saving.

Description

Technical Field

[0001] The utility model relates to the technical field of strip steel production, in particular to a pickling device for strip steel production. Background Art

[0002] Metal strip steel is prone to generate iron oxide scale during the production process. The use of pickling equipment can effectively remove the iron oxide scale on the surface, making the metal surface cleaner and also conducive to subsequent processing and surface coating treatment.

[0003] During the pickling process of the existing equipment, impurities generated will be mixed in the acid, which will affect the contact between the acid and the steel strip and the pickling effect, and the concentration of the acid will gradually decrease. Therefore, during the pickling process, it is often necessary to manually clean the impurities in the acid and continuously add acid to ensure the pickling effect, which makes the pickling process more cumbersome.

[0004] For this reason, a pickling device for strip steel production is proposed. Utility Model Content

[0005] The purpose of the utility model is to solve the problems mentioned in the above background technology, and the utility model provides a pickling device for strip steel production.

[0006] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0007] A pickling device for strip steel production comprises a pickling box, wherein the interior of the pickling box contains hydrochloric acid solution, the inner wall of the pickling box is rotatably connected to two groups of guide rollers, and the guide rollers of the left group are lower than the guide rollers of the right group, the surface of the pickling box is provided with a spraying component and a scraping component for pickling the surface of the strip steel, a drain pipe is fixedly inserted in the middle of the bottom surface of the pickling box, a valve is provided on the surface of the drain pipe, the bottom end of the drain pipe is fixedly connected to a treatment box, the surface of the treatment box is provided with an adjusting component for replenishing the hydrochloric acid solution into the pickling box, and the surface of the treatment box is also provided with a circulating filtering component for filtering the hydrochloric acid solution.

[0008] Furthermore, the scraping and cleaning assembly includes an installation box, and the installation box is fixedly connected to the top surface of the pickling box, a motor is fixedly installed on the inner wall of the installation box, a threaded column is fixedly connected to the output end of the motor, a connecting column is threadedly connected to the surface of the threaded column, a scraper is fixedly connected to the bottom end of the connecting column, a sliding groove is opened through the bottom surface of the installation box, and the inner wall of the sliding groove is slidably connected to the surface of the connecting column.

[0009] Furthermore, the spray cleaning assembly includes a first liquid pump, and the first liquid pump is fixedly installed on the front side of the pickling box, the liquid inlet end of the first liquid pump is connected to the inside of the pickling box, the liquid outlet end of the first liquid pump is fixedly connected to a first delivery pipe, and a nozzle is arranged on the surface of the first delivery pipe.

[0010] Furthermore, the adjustment component includes a pH meter body, and the pH meter body is fixedly installed on the front of the pickling box, and the detection end of the pH meter body is located inside the pickling box, a liquid storage cavity is provided on the right side of the interior of the processing box, and the liquid storage cavity is filled with hydrochloric acid solution, a second liquid pump is fixedly installed on the front of the processing box, the liquid inlet end of the second liquid pump is connected to the interior of the liquid storage cavity, the liquid outlet end of the second liquid pump is fixedly connected to a second delivery pipe, and the second delivery pipe is fixedly connected to the pickling box.

[0011] Furthermore, the circulating filtration assembly includes a filter chamber, and the filter chamber is arranged on the left side inside the processing box, and a filter box is movably inserted into the inner wall of the filter chamber. A third liquid pump is fixedly installed on the front of the processing box, and the liquid inlet end of the third liquid pump is connected to the inside of the filter chamber, and the liquid outlet end of the third liquid pump is fixedly connected to a third delivery pipe, and the third delivery pipe is fixedly connected to the pickling box.

[0012] Furthermore, a through groove matched with the filter box is opened on the left side surface of the processing box, and a sealing ring is fixedly connected to the left end of the filter box, and the sealing ring is in contact with the inner wall of the through groove.

[0013] The beneficial effects of the utility model are as follows:

[0014] The strip is guided by guide rollers, a group of guide rollers on the left limit the strip below the liquid level of the acid solution to achieve immersion pickling of the strip, and a group of guide rollers on the right limit the strip above the liquid level of the acid solution. The soaked strip is sprayed with pickling by the scraping component, and the surface of the strip is cleaned by the spraying component to avoid the adhesion of impurities. The pH value of the acid solution in the pickling tank can be monitored in real time by the adjustment component. When the pH value exceeds the normal range, hydrochloric acid solution is added to the pickling tank through the adjustment component to ensure the pickling effect. After a period of use, the solution is poured into the treatment tank by opening the valve on the surface of the drain pipe, and the solution is filtered by the circulating filter component. After the impurities are filtered, it is sent back to the pickling tank for use. In use, the effect of automatic control of the pH value of the pickling solution is achieved, which ensures that the pH value of the pickling solution is within the applicable range, thereby ensuring the pickling effect, and the impurities in the acid solution can be automatically cleaned, and the entire pickling process is more convenient and labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a front cross-sectional view of the structure of the utility model;

[0017] Figure 3 It is a right sectional view of the scraping and washing component structure of the utility model;

[0018] Figure numerals: 1. pickling box; 2. guide roller; 3. spray assembly; 301. first liquid pump; 302. first delivery pipe; 303. nozzle; 4. scraping assembly; 401. mounting box; 402. motor; 403. threaded column; 404. slide; 405. scraper; 406. connecting column; 5. drain pipe; 6. treatment box; 7. adjustment assembly; 701. pH meter body; 702. second liquid pump; 703. second delivery pipe; 704. liquid storage chamber; 8. circulating filtration assembly; 801. filter chamber; 802. filter box; 803. third liquid pump; 804. third delivery pipe. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0022] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0023] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] like Figures 1 to 3 As shown, a pickling equipment for strip steel production comprises a pickling box 1, the interior of the pickling box 1 is filled with hydrochloric acid solution, the inner wall of the pickling box 1 is rotatably connected with two groups of guide rollers 2, and the left group of guide rollers 2 is lower than the right guide rollers 2, the surface of the pickling box 1 is provided with a spraying component 3 and a scraping component 4 for pickling the surface of the strip steel, a drain pipe 5 is fixedly inserted in the middle of the bottom surface of the pickling box 1, the surface of the drain pipe 5 is provided with a valve, the bottom end of the drain pipe 5 is fixedly connected with a treatment box 6, the surface of the treatment box 6 is provided with a regulating component 7 for replenishing the hydrochloric acid solution into the pickling box 1, and the surface of the treatment box 6 is also provided with a circulating filtering component 8 for filtering the hydrochloric acid solution. More specifically, the steel strip is guided by the guide rollers 2, a group of guide rollers 2 on the left side restricts the steel strip below the liquid surface of the acid solution to achieve immersion pickling of the steel strip, and a group of guide rollers 2 on the right side restricts the steel strip above the liquid surface of the acid solution, the soaked steel strip is spray pickled by the scraping component 4, and then the surface of the steel strip is cleaned by the spraying component 3 to avoid the adhesion of impurities, and the pH value of the acid solution in the pickling tank 1 can be monitored in real time by the adjusting component 7. When the pH value exceeds the normal range, hydrochloric acid solution is added to the pickling tank 1 through the adjusting component 7 to ensure the pickling effect. After a period of use, the solution is poured into the treatment tank 6 by opening the surface valve of the drain pipe 5, and the solution is filtered by the circulating filtration component 8, and the impurities are filtered before being sent back to the pickling tank 1 for use.

[0025] The scraping and washing assembly 4 includes a mounting box 401, and the mounting box 401 is fixedly connected to the top surface of the pickling box 1, a motor 402 is fixedly installed on the inner wall of the mounting box 401, a threaded column 403 is fixedly connected to the output end of the motor 402, a connecting column 406 is threadedly connected to the surface of the threaded column 403, a scraper 405 is fixedly connected to the bottom end of the connecting column 406, a slide groove 404 is opened through the bottom surface of the mounting box 401, and the inner wall of the slide groove 404 is slidably connected to the surface of the connecting column 406. It should be noted that the motor 402 is operated to drive the threaded column 403 to rotate, and the connecting column 406 is driven to slide along the inner wall of the slide groove 404 under the action of the thread, thereby driving the scraper 405 to move, and the surface of the strip is cleaned by the scraper 405 to prevent impurities from adhering to the surface of the strip.

[0026] The spray assembly 3 includes a first liquid pump 301, and the first liquid pump 301 is fixedly installed on the front of the pickling tank 1. The liquid inlet end of the first liquid pump 301 is connected to the inside of the pickling tank 1, and the liquid outlet end of the first liquid pump 301 is fixedly connected to the first delivery pipe 302, and the surface of the first delivery pipe 302 is provided with a nozzle 303. More specifically, the acid liquid inside the pickling tank 1 is extracted by the operation of the first liquid pump 301, and the acid liquid is transported through the first delivery pipe 302, and finally the acid liquid is sprayed on the surface of the strip through the nozzle 303, and the surface of the strip is sprayed and pickled. In the specific implementation, the number of nozzles 303 and the number of scrapers 405 can be set in two groups, which are respectively set on the upper side and the lower side of the strip, so as to pickle both sides thereof.

[0027] The adjustment component 7 includes a pH meter body 701, and the pH meter body 701 is fixedly installed on the front of the pickling box 1, and the detection end of the pH meter body 701 is located inside the pickling box 1. A liquid storage chamber 704 is provided on the right side of the inside of the processing box 6, and the inside of the liquid storage chamber 704 contains hydrochloric acid solution. A second liquid pump 702 is fixedly installed on the front of the processing box 6, and the liquid inlet end of the second liquid pump 702 is connected to the inside of the liquid storage chamber 704. The liquid outlet end of the second liquid pump 702 is fixedly connected to a second delivery pipe 703, and the second delivery pipe 703 is fixedly connected to the pickling box 1. It should be noted that the pH value of the liquid inside the pickling box 1 can be detected by the pH meter body 701. When the pH value is lower than the threshold value, the second liquid pump 702 is operated to extract the hydrochloric acid solution inside the liquid storage chamber 704, and send it into the inside of the pickling box 1 through the second delivery pipe 703, so that the acid inside the pickling box 1 maintains the pickling effect.

[0028] The circulating filter assembly 8 includes a filter chamber 801, and the filter chamber 801 is arranged on the left side of the interior of the treatment box 6. A filter box 802 is movably inserted into the inner wall of the filter chamber 801. A third liquid pump 803 is fixedly installed on the front of the treatment box 6, and the liquid inlet end of the third liquid pump 803 is connected to the interior of the filter chamber 801. The liquid outlet end of the third liquid pump 803 is fixedly connected to a third delivery pipe 804, and the third delivery pipe 804 is fixedly connected to the pickling box 1. More specifically, when the valve on the surface of the drain pipe 5 is opened, the acid liquid inside the pickling box 1 will enter the filter chamber 801, and the impurities in the solution will be filtered through the filter box 802. The impurities after filtering will enter the bottom of the filter box 802. The filtered acid liquid can be extracted by the operation of the third liquid pump 803, and then sent back to the interior of the pickling box 1 through the third delivery pipe 804 for use.

[0029] The left side of the processing box 6 is provided with a through slot adapted to the filter box 802. A sealing ring is fixedly connected to the left end of the filter box 802, and the sealing ring is in contact with the inner wall of the through slot. It should be noted that by providing the through slot, it is convenient to pull the filter box 802 out of the processing box 6, so as to clean the impurities trapped in the filter box 802. By providing the sealing ring, the contact position between the filter box 802 and the through slot is sealed to prevent leakage of acid liquid.

[0030] In summary: the strip is guided by the guide roller 2, a group of guide rollers 2 on the left limit the strip below the liquid level of the acid solution to achieve immersion pickling of the strip, and a group of guide rollers 2 on the right limit the strip above the liquid level of the acid solution, the soaked strip is sprayed and pickled by the scraping component 4, and then the surface of the strip is cleaned by the spraying component 3 to avoid the adhesion of impurities, the pH value of the acid solution in the pickling tank 1 can be monitored in real time by the adjustment component 7, when the pH value exceeds the normal range, the hydrochloric acid solution is added to the pickling tank 1 by the adjustment component 7 to ensure the pickling effect, after a period of use, the solution is poured into the treatment tank 6 by opening the surface valve of the drain pipe 5, and the solution is filtered by the circulation filter component 8, and the impurities are filtered and then sent back to the pickling tank 1 for use, which realizes the effect of automatic control of the pH value of the pickling solution, ensures that the pH value of the pickling solution is within the applicable range, thereby ensuring the pickling effect, and can automatically clean the impurities in the acid solution, and the whole pickling process is more convenient and labor-saving.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A pickling equipment for strip steel production, characterized in that: The invention comprises a pickling box (1), wherein the interior of the pickling box (1) contains a hydrochloric acid solution, the inner wall of the pickling box (1) is rotatably connected to two groups of guide rollers (2), and the left group of guide rollers (2) is lower than the right group of guide rollers (2), the surface of the pickling box (1) is provided with a spraying component (3) and a scraping component (4) for pickling the surface of the strip steel, a drain pipe (5) is fixedly inserted in the middle of the bottom surface of the pickling box (1), the surface of the drain pipe (5) is provided with a valve, the bottom end of the drain pipe (5) is fixedly connected to a treatment box (6), the surface of the treatment box (6) is provided with an adjusting component (7) for replenishing the hydrochloric acid solution into the pickling box (1), and the surface of the treatment box (6) is also provided with a circulating filtering component (8) for filtering the hydrochloric acid solution.

2. A pickling equipment for strip steel production according to claim 1, characterized in that: The scraping and cleaning assembly (4) comprises a mounting box (401), and the mounting box (401) is fixedly connected to the top surface of the pickling box (1); a motor (402) is fixedly mounted on the inner wall of the mounting box (401); a threaded column (403) is fixedly connected to the output end of the motor (402); a connecting column (406) is threadedly connected to the surface of the threaded column (403); a scraper (405) is fixedly connected to the bottom end of the connecting column (406); a sliding groove (404) is formed through the bottom surface of the mounting box (401), and the inner wall of the sliding groove (404) is slidably connected to the surface of the connecting column (406).

3. A pickling equipment for strip steel production according to claim 2, characterized in that: The spray cleaning assembly (3) comprises a first liquid pump (301), and the first liquid pump (301) is fixedly mounted on the front of the pickling tank (1), the liquid inlet end of the first liquid pump (301) is connected to the interior of the pickling tank (1), the liquid outlet end of the first liquid pump (301) is fixedly connected to a first delivery pipe (302), and a nozzle (303) is provided on the surface of the first delivery pipe (302).

4. The pickling equipment for strip steel production according to claim 1, characterized in that: The regulating assembly (7) comprises a pH meter body (701), and the pH meter body (701) is fixedly mounted on the front of the pickling box (1), and the detection end of the pH meter body (701) is located inside the pickling box (1); a liquid storage chamber (704) is provided on the right side inside the processing box (6), and the liquid storage chamber (704) contains hydrochloric acid solution; a second liquid pump (702) is fixedly mounted on the front of the processing box (6), the liquid inlet end of the second liquid pump (702) is connected to the inside of the liquid storage chamber (704), the liquid outlet end of the second liquid pump (702) is fixedly connected to a second delivery pipe (703), and the second delivery pipe (703) is fixedly connected to the pickling box (1).

5. The pickling equipment for strip steel production according to claim 1, characterized in that: The circulating filter assembly (8) comprises a filter chamber (801), and the filter chamber (801) is arranged on the left side inside the treatment box (6); a filter box (802) is movably inserted into the inner wall of the filter chamber (801); a third liquid pump (803) is fixedly installed on the front of the treatment box (6); a liquid inlet end of the third liquid pump (803) is connected to the inside of the filter chamber (801); a third delivery pipe (804) is fixedly connected to the liquid outlet end of the third liquid pump (803); and the third delivery pipe (804) is fixedly connected to the pickling box (1).

6. A pickling equipment for strip steel production according to claim 5, characterized in that: A through slot adapted to the filter box (802) is provided on the left side surface of the processing box (6); a sealing ring is fixedly connected to the left end of the filter box (802), and the sealing ring is in contact with the inner wall of the through slot.

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