Low-power consumption full-automatic strip steel pickling equipment
By introducing a stirring rod and a scraper rod structure into the steel strip pickling equipment, the problem of acid mist loss during acid replenishment was solved, and uniform stirring and acidity control of the pickling solution were achieved, reducing energy consumption and improving production stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG CONCORD SHEET STEEL SCI & TECH CO LTD
- Filing Date
- 2025-09-05
- Publication Date
- 2026-07-24
AI Technical Summary
Existing steel strip pickling equipment generates a large amount of acid mist when replenishing acid or water, resulting in pickling solution loss, economic losses, and high energy consumption.
The system employs a stirring rod and a scraper rod structure. A servo motor drives the connecting rod to rotate, achieving uniform stirring of acid and water. The scraper rod scrapes the generated acid mist back into the pickling solution. Combined with an acidity sensor, the addition of acid and water is automatically adjusted to reduce acid mist loss.
It significantly reduced acid mist loss, improved the stability of the pickling process and product quality, and reduced energy consumption.
Smart Images
Figure CN224548557U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of steel strip pickling equipment technology, and in particular to a low-power, fully automatic steel strip pickling equipment. Background Technology
[0002] Currently, there are three main types of strip steel pickling line equipment: semi-continuous pickling line, continuous horizontal pickling line, and continuous tower pickling line. The inlet section equipment includes strip steel coil feeding equipment, uncoiler, shearer, welding machine, sewing machine, scale remover, and inlet strip steel coil storage device. The pickling process section equipment includes pickling tank, water spray cooling tank, hot water cleaning tank, dryer, and exhaust purification device. The outlet section equipment includes outlet strip steel storage device, shearer, edge trimming machine, partial punching machine, oiling machine, coiler, and uncoiler. Among them, the pickling tank is the main equipment for removing iron oxide scale from the surface of strip steel in the strip steel pickling line. Its length determines the oxidation rate of iron oxide scale, and the maximum speed in the middle of the strip steel determines the length of the pickling tank. The pickling tank is the key equipment that determines the capacity of the strip steel pickling line production line.
[0003] An existing patent (publication number: CN222294208U) discloses a pickling device for strip steel production, relating to the field of strip steel production technology. This utility model includes a pickling tank containing a hydrochloric acid solution. Two sets of guide rollers are rotatably connected to the inner wall of the pickling tank, with the left set of guide rollers lower than the right set. The surface of the pickling tank is equipped with a spraying assembly and a scraping assembly for pickling the strip steel surface. A drain pipe is fixedly inserted into the center of the bottom surface of the pickling tank, and a valve is installed on the surface of the drain pipe. A processing tank is fixedly connected to the bottom end of the drain pipe, and the surface of the processing tank is equipped with an adjusting assembly for replenishing the hydrochloric acid solution into the pickling tank. In use, this device achieves convenient automatic control of the pH of the pickling solution, ensuring that the pH is within the applicable range, thereby guaranteeing the pickling effect. It also automatically cleans impurities in the acid solution, making the entire pickling process more convenient and labor-saving.
[0004] However, in the above-mentioned solution, it was found that when pickling strip steel, the acidity of the pickling solution needs to be tested and controlled by adding acid or water. However, when adding acid or water to the pickling tank, a large amount of acid mist will rise and spread into the air, causing the pickling solution in the pickling tank to be lost, resulting in economic losses. Utility Model Content
[0005] The purpose of this application is to provide a low-power, fully automatic strip steel pickling equipment, which can stir the pickling solution with a stirring rod to ensure uniform mixing, and scrape off the acid mist generated when adding acid and water with a scraper rod so that it drips back into the pickling solution, thereby reducing the loss of acid mist and significantly reducing energy consumption, thus solving the problems mentioned in the background art.
[0006] This application provides a low-power fully automatic strip steel pickling equipment with the following technical solution: It includes a cover plate, a mounting frame fixedly connected to the upper surface of the cover plate, a servo motor fixedly connected to the bottom surface of the mounting frame, a connecting rod fixedly connected to the output shaft of the servo motor, and equidistantly arranged stirring rods fixedly connected to the outer surface of the connecting rod. Two first pulleys are fixedly mounted on the outer surface of the connecting rod, a synchronous belt meshes with the outer surface of each first pulley, a second pulley meshes with the inner wall of each synchronous belt, a rotating shaft is fixedly connected to the inner wall of each second pulley, the outer surface of each rotating shaft is rotatably connected to the inner wall of the cover plate, and a scraping rod is fixedly connected to the bottom end of each rotating shaft.
[0007] By adopting the above technical solution, a mounting bracket is installed on the upper surface of the cover plate to fix the mounting bracket. A servo motor is fixed on the bottom surface of the mounting bracket, so that the servo motor can be limited by the mounting bracket. A connecting rod is installed on the output shaft of the servo motor and fixed to the output shaft of the servo motor. Stirring rods arranged at equal intervals are fixed on the outer surface of the connecting rod, so that the servo motor can drive the connecting rod and the stirring rods on the surface to rotate, thereby realizing the stirring of acid and water. Two first pulleys are installed on the surface of the connecting rod, and two rotating shafts are set on the inner wall of the cover plate to fix the second pulleys. A synchronous belt is installed between the first pulley and the corresponding second pulley on the surface of the corresponding rotating shaft. When the servo motor drives the connecting rod to rotate, the two rotating shafts rotate synchronously through the connection of the first pulley, the synchronous belt and the second pulley. This allows the scraper rod to scrape the bottom surface of the cover plate. As a result, the device can stir the acid and water when adding acid and water, ensuring uniform mixing. At the same time, the scraper rod can scrape off the acid mist generated when adding acid and water, allowing it to drip back into the pickling solution, reducing acid mist loss and significantly reducing energy consumption.
[0008] Preferably, an acid pickling tank is provided below the cover plate, and an acidity sensor is fixedly connected to the inner wall of the acid pickling tank.
[0009] By adopting the above technical solution, an acid pickling tank is set up below the cover plate. The inside of the acid pickling tank is used to store the acid pickling solution. An acidity sensor is installed on the inner wall of the acid pickling tank to realize the installation of the acidity sensor. The acidity sensor can detect the acidity of the acid pickling solution. When the acidity value is high, water can be added. When the acidity value is insufficient, acid solution needs to be added.
[0010] Preferably, the cover plate has through holes on both the left and right sides, and two limiting rollers are rotatably connected to the inner sidewall of the cover plate.
[0011] By adopting the above technical solution, the through holes are opened on the left and right sides of the cover plate to achieve the positioning of the through holes. The through holes facilitate the feeding and discharging of the strip steel. The limiting rollers are set on the inner wall of the pickling tank. The two limiting rollers can press the strip steel to the bottom of the pickling tank to prevent the strip steel from interfering with the movement of the stirring rod.
[0012] Preferably, a first feed pipe is fixedly connected to the upper surface of the cover plate, and a second feed pipe is fixedly connected to the upper surface of the cover plate.
[0013] By adopting the above technical solution, the first feed pipe is installed on the upper surface of the cover plate, and the second feed pipe is also installed on the upper surface of the cover plate. The first feed pipe facilitates the replenishment of acid solution into the pickling tank, and the second feed pipe facilitates the replenishment of water solution into the pickling tank.
[0014] Preferably, a connecting arm is fixedly connected to the back of the cover plate, and a rotating shaft is fixedly connected to the inner wall of the connecting arm.
[0015] By adopting the above technical solution, the connecting arm is installed on the back of the cover plate and set as a fixed connection. The rotating shaft is fixed to the connecting arm to realize the installation of the rotating shaft, so that the cover plate, the connecting arm and the rotating shaft can move synchronously.
[0016] Preferably, the outer surface of the rotating shaft is rotatably connected to two limiting members, and the front of each limiting member is fixedly connected to the back of the pickling tank.
[0017] By adopting the above technical solution, the limiting component is installed on the outer surface of the rotating shaft and set as a rotatable connection. The front of the limiting component is fixed to the back of the cover plate, so that the limiting component can limit the rotating shaft, thereby allowing the rotating shaft to rotate at the position of the limiting component, and thus allowing the cover plate to rotate at the center position of the limiting component, which facilitates the opening and closing of the cover plate.
[0018] Preferably, a support frame is fixedly installed on the back of the pickling tank, a drive motor is fixedly connected to the upper surface of the support frame, and a worm gear is fixedly connected to the output shaft of the drive motor.
[0019] By adopting the above technical solution, the support frame is installed on the back of the pickling tank, and a drive motor is set on the upper surface of the support frame to support and install the drive motor. A worm gear is installed on the output shaft of the drive motor so that the drive motor can drive the worm gear to rotate.
[0020] Preferably, a worm wheel meshes with the outer surface of the worm, and the right side of the worm wheel is fixedly connected to the left end of the rotating shaft.
[0021] By adopting the above technical solution, the worm wheel is set on the side of the worm and meshed with the worm, so that when the drive motor drives the worm to rotate, the worm wheel can rotate. The worm wheel is fixed to the shaft so that the worm wheel can drive the shaft to rotate, thereby making the cover plate easy to open and close.
[0022] In summary, this application includes at least one of the following beneficial technical effects: This low-power, fully automatic steel strip pickling equipment, equipped with components such as a stirring rod, synchronous belt, and scraper, activates a servo motor to rotate a connecting rod when acid and water are added. The connecting rod, in turn, drives the stirring rod and the first pulley to rotate. The connection between the first pulley, the synchronous belt, and the second pulley ensures synchronized rotation of the two shafts. This allows the scraper to scrape the bottom surface of the cover plate, thus enabling the device to stir the pickling solution with the stirring rod, ensuring uniform mixing, while simultaneously scraping away the acid mist generated during the addition of acid and water, allowing it to drip back into the tank. Returning the pickling solution to the pickling solution can reduce the loss of acid mist and significantly reduce energy consumption. By installing an acidity sensor on the inner wall of the pickling tank, the acidity of the pickling solution inside the tank can be detected. When the acidity is insufficient, acid is injected through the first feed pipe. When the acidity exceeds the standard, water is injected through the second feed pipe. This can significantly improve the stability of the pickling process and product quality. By setting a drive motor to drive the worm gear to rotate, the meshing of the worm gear and worm wheel allows the rotating shaft and connecting arm to rotate, so that the cover plate can rotate at the center position of the limiting component, which facilitates the opening and closing operation of the cover plate. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the entire application in three dimensions; Figure 2 This is a schematic diagram of the overall front view of this application; Figure 3 This is a cross-sectional structural diagram of the pickling tank in this application; Figure 4 This is a schematic diagram of the connection relationship between the first pulley and the timing belt in this application; Figure 5 This is a schematic diagram of the connection between the worm and the worm wheel in this application.
[0024] In the picture: 1. Cover plate; 2. Mounting bracket; 3. Servo motor; 4. Connecting rod; 5. Stirring rod; 6. First pulley; 7. Synchronous belt; 8. Second pulley; 9. Rotating shaft; 10. Scraper rod; 11. Pickling tank; 12. Limiting roller; 13. Through hole; 14. Acidity sensor; 15. First feed pipe; 16. Second feed pipe; 17. Connecting arm; 18. Rotating shaft; 19. Limiting component; 20. Support frame; 21. Drive motor; 22. Worm gear; 23. Worm wheel. Detailed Implementation
[0025] The following is in conjunction with the appendix Figure 1 - Appendix Figure 5 This application will be described in further detail below.
[0026] Example 1: A low-power, fully automatic strip pickling equipment; please refer to [link / reference]. Figure 1 , Figure 3 and Figure 4 The system includes a cover plate 1, a mounting bracket 2 fixedly connected to the upper surface of the cover plate 1, a servo motor 3 fixedly connected to the bottom surface of the mounting bracket 2, a connecting rod 4 fixedly connected to the output shaft of the servo motor 3, and stirring rods 5 arranged at equal intervals fixedly connected to the outer surface of the connecting rod 4. The mounting bracket 2 is installed on the upper surface of the cover plate 1 to fix the mounting bracket 2. The servo motor 3 is fixed on the bottom surface of the mounting bracket 2 so that the servo motor 3 can be limited by the mounting bracket 2. The connecting rod 4 is installed on the output shaft of the servo motor 3 and fixed to the output shaft of the servo motor 3. The stirring rods 5 arranged at equal intervals are fixed on the outer surface of the connecting rod 4 so that the servo motor 3 can drive the connecting rod 4 and the stirring rods 5 on the surface to rotate, thereby realizing the stirring of acid and water.
[0027] Please see Figure 2 , Figure 3 and Figure 4Two first pulleys 6 are fixedly installed on the outer surface of the connecting rod 4. A synchronous belt 7 meshes with the outer surface of each first pulley 6, and a second pulley 8 meshes with the inner wall of each synchronous belt 7. A rotating shaft 9 is fixedly connected to the inner wall of each second pulley 8. The outer surface of each rotating shaft 9 is rotatably connected to the inner wall of the cover plate 1, and a scraper rod 10 is fixedly connected to the bottom end of each rotating shaft 9. By installing two first pulleys 6 on the surface of the connecting rod 4 and setting two rotating shafts 9 on the inner wall of the cover plate 1, the second pulleys 8 are fixed to the corresponding rotating shaft 9 surfaces. A synchronous belt 7 is connected to the corresponding second pulley 8, so that when the servo motor 3 drives the connecting rod 4 to rotate, the two rotating shafts 9 are driven to rotate synchronously through the connection of the first pulley 6, the synchronous belt 7 and the second pulley 8. This allows the scraper rod 10 to scrape the bottom surface of the cover plate 1, thereby enabling the device to stir the acid and water when adding acid and water, ensuring uniform mixing. At the same time, the scraper rod 10 can scrape off the acid mist generated when adding acid and water, allowing it to drip back into the pickling solution, reducing acid mist loss and significantly reducing energy consumption.
[0028] Example 2: A low-power, fully automatic strip pickling equipment; please refer to [link / reference]. Figure 1 , Figure 3 and Figure 4 A pickling tank 11 is located below the cover plate 1. An acidity sensor 14 is fixedly connected to the inner wall of the pickling tank 11. The pickling tank 11 is used to store pickling solution. The acidity sensor 14 is installed on the inner wall of the pickling tank 11 to detect the acidity of the pickling solution. When the acidity value is high, water can be added; when the acidity value is insufficient, acid solution needs to be added. Through holes 13 are provided on the left and right sides of the cover plate 1. Two limiting rollers 12 are rotatably connected to the inner wall of the cover plate 1. The through holes 13 are located on the left and right sides of the cover plate 1 to achieve through-hole detection. The positioning of the hole 13 facilitates the feeding and discharging of the strip steel. The limiting roller 12 is set on the inner wall of the pickling tank 11. The two limiting rollers 12 can press the strip steel to the bottom of the pickling tank 11 to prevent the strip steel from interfering with the movement of the stirring rod 5. The upper surface of the cover plate 1 is fixedly connected to the first feed pipe 15 and the upper surface of the cover plate 1 is fixedly connected to the second feed pipe 16. The first feed pipe 15 is installed on the upper surface of the cover plate 1, and the second feed pipe 16 is also installed on the upper surface of the cover plate 1. The first feed pipe 15 facilitates the replenishment of acid liquid into the pickling tank 11, and the second feed pipe 16 facilitates the replenishment of water liquid into the pickling tank 11.
[0029] Please see Figure 5A connecting arm 17 is fixedly connected to the back of the cover plate 1, and a rotating shaft 18 is fixedly connected to the inner wall of the connecting arm 17. The connecting arm 17 is installed on the back of the cover plate 1 as a fixed connection, and the rotating shaft 18 is fixed to the connecting arm 17 to realize the installation of the rotating shaft 18, so that the cover plate 1, the connecting arm 17 and the rotating shaft 18 can move synchronously. Two limiting members 19 are rotatably connected to the outer surface of the rotating shaft 18. The front of each limiting member 19 is fixedly connected to the back of the pickling tank 11. The limiting member 19 is installed on the outer surface of the rotating shaft 18 as a rotatable connection, and the front of the limiting member 19 is fixed to the back of the cover plate 1, so that the limiting member 19 can limit the rotating shaft 18, thereby allowing the rotating shaft 18 to rotate at the position of the limiting member 19, and thus allowing the cover plate 1 to rotate at the center position of the limiting member 19, which facilitates the opening and closing of the cover plate 1.
[0030] Please see Figure 5 A support frame 20 is fixedly installed on the back of the pickling tank 11. A drive motor 21 is fixedly connected to the upper surface of the support frame 20. A worm gear 22 is fixedly connected to the output shaft of the drive motor 21. The support frame 20 is installed on the back of the pickling tank 11, and the drive motor 21 is set on the upper surface of the support frame 20 to support and install the drive motor 21. The worm gear 22 is installed on the output shaft of the drive motor 21 so that the drive motor 21 can drive the worm gear 22 to rotate. A worm wheel 23 is meshed on the outer surface of the worm gear 22. The right side of the worm wheel 23 is fixedly connected to the left end of the rotating shaft 18. The worm wheel 23 is set on the side of the worm gear 22 and meshes with the worm gear 22 so that when the drive motor 21 drives the worm gear 22 to rotate, the worm wheel 23 can rotate. The worm wheel 23 is fixed to the rotating shaft 18 so that the worm wheel 23 can drive the rotating shaft 18 to rotate, thereby making the cover plate 1 easy to open and close.
[0031] The implementation principle of this application embodiment is as follows: the strip steel passes through the through hole 13 into the pickling tank 11, and is limited by two limiting rollers 12. Pickling of the strip steel is achieved through immersion and movement. During the pickling process, the acidity of the pickling solution in the pickling tank 11 is detected in real time by the acidity sensor 14. When the acidity is insufficient, acid is injected through the first feed pipe 15; when the acidity exceeds the standard, water is injected through the second feed pipe 16. When adding acid or water, the servo motor 3 is activated to drive the connecting rod 4 to rotate, which in turn drives the stirring rod 5 to rotate, thereby stirring the pickling solution in the pickling tank 11. This allows the newly added acid or water to quickly mix with the pickling solution inside the pickling tank 11. During the process, the connecting rod 4 drives the two first pulleys 6 to rotate. Through the connection of the first pulleys 6, the synchronous belt 7, and the second pulley 8, the two rotating shafts 9 rotate synchronously, thereby enabling the two scraping rods 10 to scrape the bottom surface of the cover plate 1. This allows the acid mist generated when adding acid or water to fall back into the pickling tank 11 below, reducing acid mist loss and significantly reducing energy consumption. By starting the drive motor 21, the worm gear 22 is driven to rotate, which in turn drives the worm wheel 23 to rotate. This allows the worm wheel 23 to drive the rotating shaft 18 to rotate. Through the connection of the cover plate 1, the connecting arm 17, and the rotating shaft 18, the cover plate 1 can be opened, making it easier for operators to observe the internal condition of the pickling tank 11.
[0032] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be included within the scope of protection of this application.
Claims
1. A low-power, fully automatic strip steel pickling equipment, comprising a cover plate (1), characterized in that: A mounting bracket (2) is fixedly connected to the upper surface of the cover plate (1). A servo motor (3) is fixedly connected to the bottom surface of the mounting bracket (2). A connecting rod (4) is fixedly connected to the output shaft of the servo motor (3). A stirring rod (5) arranged at equal intervals is fixedly connected to the outer surface of the connecting rod (4). Two first pulleys (6) are fixedly installed on the outer surface of the connecting rod (4). A synchronous belt (7) is engaged on the outer surface of each first pulley (6). A second pulley (8) is engaged on the inner wall of each synchronous belt (7). A rotating shaft (9) is fixedly connected to the inner wall of each second pulley (8). The outer surface of each rotating shaft (9) is rotatably connected to the inner wall of the cover plate (1). A scraping rod (10) is fixedly connected to the bottom end of each rotating shaft (9).
2. The low-power fully automatic strip steel pickling equipment according to claim 1, characterized in that: A pickling tank (11) is provided below the cover plate (1), and an acidity sensor (14) is fixedly connected to the inner wall of the pickling tank (11).
3. The low-power fully automatic strip pickling equipment according to claim 1, characterized in that: The cover plate (1) has through holes (13) on both the left and right sides, and two limiting rollers (12) are rotatably connected to the inner side wall of the cover plate (1).
4. The low-power fully automatic strip pickling equipment according to claim 1, characterized in that: The upper surface of the cover plate (1) is fixedly connected to a first feed pipe (15), and the upper surface of the cover plate (1) is fixedly connected to a second feed pipe (16).
5. The low-power fully automatic strip pickling equipment according to claim 1, characterized in that: A connecting arm (17) is fixedly connected to the back of the cover plate (1), and a rotating shaft (18) is fixedly connected to the inner wall of the connecting arm (17).
6. The low-power fully automatic strip pickling equipment according to claim 5, characterized in that: The outer surface of the rotating shaft (18) is rotatably connected to two limiting members (19), and the front of each limiting member (19) is fixedly connected to the back of the pickling tank (11).
7. The low-power fully automatic strip steel pickling equipment according to claim 2, characterized in that: A support frame (20) is fixedly installed on the back of the pickling tank (11), and a drive motor (21) is fixedly connected to the upper surface of the support frame (20). A worm gear (22) is fixedly connected to the output shaft of the drive motor (21).
8. The low-power fully automatic strip pickling equipment according to claim 7, characterized in that: The outer surface of the worm (22) is engaged with a worm wheel (23), and the right side of the worm wheel (23) is fixedly connected to the left end of the rotating shaft (18).