A device for washing a steel sheet after pickling
By designing a steel plate pickling and washing device with vertical conveying and two-sided drying components, the problem of not being able to dry both sides of the steel plate at the same time was solved, achieving efficient steel plate drying and production continuity, and reducing energy consumption and defect rate.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN HAIGANG STEEL SHEET
- Filing Date
- 2025-07-28
- Publication Date
- 2026-07-24
AI Technical Summary
After pickling, steel plates cannot be dried on both sides simultaneously when placed horizontally, resulting in long drying times, wasted energy, and disruption of subsequent processes.
A device was designed that includes a washing tank, a conveying component, a drying component, and a feeding component. The steel plate is dried by blowing high-pressure air on both sides through the vertical conveying component and the drying components on both sides. The feeding component changes the horizontal steel plate to a vertical position to avoid mechanical clamping damage.
This technology enables simultaneous drying of both sides of the steel plate, reducing energy consumption, decreasing the defect rate, extending the equipment lifespan, and improving production continuity and efficiency.
Smart Images

Figure CN224542499U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of steel plate production, and in particular relates to a water washing device for steel plates after pickling. Background Technology
[0002] Water washing after pickling steel plates is a key step in metal surface treatment. Its purpose is to thoroughly remove residual acid and reaction products to prevent rusting or affecting subsequent processes. After multiple water washes, conventional drying equipment is placed on top of horizontally placed steel plates, which cannot dry both sides of the steel plates at the same time. This results in long drying times, wasted energy, and disruption to the continuous operation of subsequent processes. Utility Model Content
[0003] In view of this, the present invention aims to provide a water washing device for steel plates after pickling, so as to solve the problem that when steel plates are placed horizontally after pickling and water washing, it is impossible to dry both sides of the steel plates at the same time.
[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:
[0005] A washing device for pickled steel plates includes a washing tank, a conveying assembly, a drying assembly, and a feeding assembly. The conveying assembly can convey the steel plate linearly. The drying assembly is located on both sides of the conveying assembly. The feeding assembly is located between the washing tank and the conveying assembly. The feeding assembly includes a support, legs, two triangular support plates, and two feeding rollers. The legs are located at the lower end of the support. The two triangular support plates are arranged in a mirror image. The outer peripheries of the two triangular support plates are fixedly connected to the two opposite corners of the support. The two feeding rollers are arranged parallel to each other. The two ends of each feeding roller are rotatably connected to a triangular support plate. Each side surface of the steel plate is rotatably connected to the outer periphery of a feeding roller.
[0006] Furthermore, the conveying assembly includes a box, a conveying unit, a waste discharge box, support legs, a power unit, and a synchronization unit. Support legs are provided around the lower end of the box. Multiple conveying units are sequentially arranged inside the box along the conveying direction of the steel plate. The waste discharge box is slidably connected to the lower end of the box. A handle is provided on the waste discharge box. The power unit and the synchronization unit are installed on the box, and the power unit drives each conveying unit to rotate synchronously through the synchronization unit.
[0007] Furthermore, each conveying unit includes a power roller, a driven roller, two support plates, two sets of sliding structures, and rollers. The two support plates are arranged parallel to each other, and each support plate is fixedly installed inside the box. Each support plate is provided with a set of sliding structures. The power roller and the driven roller are arranged parallel to each other. The two ends of the power roller are rotatably connected to a support plate, and the two ends of the driven roller are rotatably connected to a set of sliding structures. The rollers are set on the support plate near the waste discharge box, and the steel plate can roll forward on the rollers.
[0008] Furthermore, the synchronization unit includes a sprocket and a chain. One end of each power roller is fixedly connected to the sprocket. The output end of the power unit is fixedly connected to one end of any power roller. The power unit is fixedly installed on the housing. The sprockets of each group of conveying units are surrounded by chains to form a synchronous transmission structure.
[0009] Furthermore, the sliding structure includes a slider, a lead screw, and a handwheel. Each support plate is provided with a square groove. The outer periphery of the slider is slidably connected in the square groove. The two ends of the driven roller are respectively rotatably connected to one end of the slider. One end of the lead screw is rotatably connected to one side of the slider. The other end of the lead screw is provided with a handwheel. The outer periphery of the lead screw is threadedly connected to one end of the support plate.
[0010] Furthermore, the roller includes a U-shaped frame, a roller shaft, and a roller body. The lower end of the U-shaped frame is fixedly connected to the support plate, and the two ends of the roller shaft are respectively rotatably connected to a side wall of the open end of the U-shaped frame. The roller body is fixedly sleeved around the outer periphery of the roller shaft, and the side wall of the steel plate is rotatably connected to the roller body.
[0011] Furthermore, the drying assembly includes an air inlet pipe, a jet support, and nozzles. The jet support is installed inside the housing, and multiple nozzles are installed on the jet support. Each nozzle is connected to a high-pressure air pump through the air inlet pipe, and the air inlet pipe (21) is installed inside the housing (11).
[0012] Compared with the prior art, the water washing device for pickling steel plates described in this utility model has the following advantages:
[0013] Beneficial effects:
[0014] (1) The water washing device for pickled steel plate described in this utility model can vertically place the steel plate after multiple water washing by means of a vertically arranged conveying component and a drying component arranged on both sides, and continuously blow high-pressure air on both sides to solve the problem of not being able to dry both sides of the steel plate at the same time.
[0015] (2) The water washing device for pickling steel plates described in this utility model can not only change the horizontally placed steel plates to vertically placed ones by setting up a feeding component, but also replace the traditional mechanical clamping and position changing device, thereby avoiding damage and scratches to the surface of the steel plates and reducing the defect rate.
[0016] (3) The water washing device for pickling steel plates described in this utility model can collect water that drips or is blown off the steel plate by setting up a waste discharge box, so as to avoid splashing everywhere and causing environmental pollution, or splashing onto the device and causing corrosion, thereby reducing environmental pollution and extending the service life of the device.
[0017] (4) The water washing device for pickling steel plates described in this utility model has a sliding structure that can change the distance between the driven roller and the power roller and can adapt to steel plates of different thicknesses. It can dry steel plates of different thicknesses without changing the production line, ensuring the continuity of production, improving work efficiency and reducing costs. Attached Figure Description
[0018] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:
[0019] Figure 1 This is a schematic diagram of the overall structure of a water washing device for pickling steel plates according to an embodiment of the present invention;
[0020] Figure 2 This is a schematic diagram of the feeding assembly of a water washing device for pickled steel plates according to an embodiment of the present invention;
[0021] Figure 3 This is a schematic diagram of the conveying components of a water washing device for pickled steel plates according to an embodiment of the present invention;
[0022] Figure 4 This is a schematic diagram of the conveying unit of a water washing device for pickled steel plates according to an embodiment of the present invention;
[0023] Figure 5 This is a schematic diagram of the synchronization unit of a water washing device for pickling steel plates according to an embodiment of the present invention;
[0024] Figure 6 This is a schematic diagram of the sliding structure of a water washing device for pickling steel plates according to an embodiment of the present invention;
[0025] Figure 7 This is a schematic diagram of the rollers in a water washing device for pickling steel plates according to an embodiment of the present invention;
[0026] Figure 8 This is a schematic diagram of the drying component of a water washing device for pickling steel plates according to an embodiment of the present invention.
[0027] Explanation of reference numerals in the attached figures:
[0028] 1-Conveying assembly; 11-Box; 12-Conveying unit; 121-Powered roller; 122-Driven roller; 123-Support plate; 124-Sliding structure; 1241-Slider; 1242-Lead screw; 1243-Handwheel; 125-Roller; 1251-U-shaped frame; 1252-Roller; 1253-Roller body; 126-Servo motor; 127-Sprocket; 128-Chain; 13-Waste discharge box; 131-Handle; 14-Support leg; 15-Power unit; 16-Synchronization unit; 2-Drying assembly; 21-Air inlet pipe; 22-Air jet support; 23-Nozzle; 3-Feeding assembly; 31-Support; 32-Support leg; 33-Triangular support plate; 34-Feeding roller. Detailed Implementation
[0029] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0030] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0032] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0033] like Figure 1 and Figure 2As shown, a water washing device for pickled steel plates includes a water washing tank, a conveying component 1, a drying component 2, and a feeding component 3. The conveying component 1 can convey the steel plate linearly. The drying component 2 is arranged on both sides of the conveying component 1. The feeding component 3 is arranged between the water washing tank and the conveying component 1. The feeding component 3 includes a support 31, a support leg 32, two triangular support plates 33, and two feeding rollers 34. The support leg 32 is arranged at the lower end of the support 31. The two triangular support plates 33 are arranged in a mirror image. The outer periphery of the two triangular support plates 33 is fixedly connected to the two diagonals of the support 31. The two feeding rollers 34 are arranged parallel to each other. The two ends of each feeding roller 34 are rotatably connected to a triangular support plate 33. Each side surface of the steel plate is rotatably connected to the outer periphery of a feeding roller 34.
[0034] The washing tank includes one or more tanks as described in the prior art, filled with water for washing steel plates. During implementation, to facilitate winding, a feeding component 3 is also placed at the rear end of the drying component 2. The front feeding component 3 is used to change the steel plate from a horizontal to a vertical position, while the rear feeding component is used to change the steel plate from a vertical to a horizontal position. The steel plate, after multiple washes in the previous stage, is placed between two feeding rollers 34. The horizontally placed steel plate is turned into a vertically positioned steel plate by the angled feeding rollers 34, facilitating its entry into the subsequent conveying component 1. By setting up the feeding component 3, not only can the horizontally placed steel plate be changed to a vertical position, but it can also replace the traditional mechanical clamping and position-changing device, avoiding damage and scratches to the steel plate surface and reducing the defect rate. Furthermore, the vertically positioned conveying component and the drying components on both sides allow the steel plate, after multiple washes, to be placed vertically, and high-pressure air is continuously blown from both sides, solving the problem of not being able to completely dry both sides of the steel plate.
[0035] like Figures 3-5 As shown, the conveying assembly 1 includes a housing 11, conveying units 12, a waste discharge box 13, support legs 14, a power unit 15, and a synchronization unit 16. Support legs 14 are provided around the lower end of the housing 11. Multiple conveying units 12 are sequentially arranged inside the housing 11 along the conveying direction of the steel plate. The waste discharge box 13 is slidably connected to the lower end of the housing 11, and a handle 131 is provided on the waste discharge box 13. The power unit 15 and the synchronization unit 16 are mounted on the housing 11, and the power unit 15 drives each conveying unit 12 to rotate synchronously through the synchronization unit 16. By providing the waste discharge box 13, water dripping or being blown down from the steel plate can be collected, preventing splashing and environmental pollution, or splashing onto the device causing corrosion, thus reducing environmental pollution and extending the service life of the device.
[0036] like Figure 4 and Figure 5As shown, each conveying unit 12 includes a power roller 121, a driven roller 122, two support plates 123, two sets of sliding structures 124, and rollers 125. The two support plates 123 are arranged parallel to each other, and each support plate 123 is fixedly installed inside the housing 11. Each support plate 123 is provided with a set of sliding structures 124. The power roller 121 and the driven roller 122 are arranged parallel to each other. The two ends of the power roller 121 are rotatably connected to a support plate 123, and the two ends of the driven roller 122 are rotatably connected to a set of sliding structures 124. The rollers 125 are provided on the support plate 123 near the waste discharge box 13, and the steel plate can roll forward on the rollers 125. The side of the vertically placed steel plate is placed on the roller 125, and the steel plate is placed between the driving roller 121 and the driven roller 122. Under the action of friction, the steel plate can move along the direction of rotation of the driving roller 121, thereby being introduced into the drying assembly 2.
[0037] like Figure 5 As shown, the synchronization unit 16 includes a sprocket 127 and a chain 128. One end of each power roller 121 is fixedly sleeved with the sprocket 127. The output end of the power unit 15 is fixedly connected to one end of any power roller 121, and the power unit 15 is fixedly installed on the housing 11. The sprocket 127 of each group of conveying units 12 is sleeved with the chain 128 to form a synchronous transmission structure. The synchronization unit 16 is a servo motor, which is existing technology, and the model of the servo motor is HG-SR102J. When the controller is turned on, the controller controls the servo motor 126 to rotate. The output shaft of the servo motor rotates and drives the sprocket 127 to rotate. Driven by the chain 128, the power roller 121 rotates. Under the action of friction, the power roller 121 and the driven roller 122 also rotate, and move along the rotation direction of the roller along with the steel plate clamped in the middle.
[0038] like Figure 6As shown, the sliding structure 124 includes a slider 1241, a lead screw 1242, and a handwheel 1243. Each support plate 123 has a square groove. The outer periphery of the slider 1241 is slidably connected to the square groove. The two ends of the driven roller 122 are rotatably connected to one end of the slider 1241, and one end of the lead screw 1242 is rotatably connected to one side of the slider 1241. The other end of the lead screw 1242 is equipped with a handwheel 1243, and the outer periphery of the lead screw 1242 is threadedly connected to one end of the support plate 123. Rotating the handwheel 1243 will rotate the lead screw 1242. Since one end of the lead screw 1242 is rotatably connected to the slider 1241 and the outer periphery of the lead screw 1242 is threadedly connected to the support plate 123, the rotation of the lead screw 1242 will cause the slider 1241 to move, thereby moving the position of the driven roller 122 and changing the distance between the driven roller 122 and the driving roller 121, which can accommodate steel plates of different thicknesses. By setting up the sliding structure 124, the distance between the driven roller 122 and the power roller 121 can be changed, and it can adapt to steel plates of different thicknesses. Steel plates of different thicknesses can be dried without changing the production line, ensuring the continuity of production, improving work efficiency and reducing costs.
[0039] like Figure 7 As shown, the roller 125 includes a U-shaped frame 1251, a roller 1252, and a roller body 1253. The lower end of the U-shaped frame 1251 is fixedly connected to the support plate 123. The two ends of the roller 1252 are respectively rotatably connected to a side wall of the open end of the U-shaped frame 1251. The roller body 1253 is fixedly sleeved around the outer periphery of the roller 1252. The side wall of the steel plate is rotatably connected to the roller body 1253.
[0040] like Figure 8 As shown, the drying assembly 2 includes an air inlet pipe 21, a jet support 22, and nozzles 23. The jet support 22 is installed inside the housing 11, and multiple nozzles 23 are installed on the jet support 22. Each nozzle 23 is connected to a high-pressure air pump through the air inlet pipe 21, and the air inlet pipe (21) is installed inside the housing (11). The nozzles 23 can spray high-pressure gas to blow away the steel plate. After connecting to the high-pressure air pump, the high-pressure air pump blows high-pressure air into the air inlet pipe 21. The high-pressure air is blown through the nozzles 23 to both sides of the vertically placed steel plate, thereby achieving the purpose of drying the steel plate.
[0041] The working process of a water washing device for pickled steel plates:
[0042] Rotating the handwheel 1243 changes the distance between the driven roller 122 and the power roller 121, adjusting the distance between the driven roller 122 and the power roller 121 to the current thickness of the steel plate. The steel plate, which has been washed multiple times in the previous stage, is placed between the two feeding rollers 34. The horizontally placed steel plate will be turned into a vertically set steel plate by passing through the angled feeding rollers 34, making it convenient to enter the subsequent conveying component 1. Turn on the controller, and the controller controls the servo motor to rotate. The output shaft of the servo motor rotates and drives the sprocket 127 to rotate. Driven by the chain 128, the power roller 121 rotates. Under the action of friction, the power roller 121 and the driven roller 122 also rotate, and carry the steel plate clamped in the middle to move along the direction of the roller rotation. During the movement, the nozzles 23 on both sides can spray high-pressure gas to blow the steel plate, so as to achieve the purpose of drying the steel plate. In order to facilitate the winding, a feeding component 3 is also placed at the rear end of the drying component 2. The front feeding component 3 is used to change the steel plate from a horizontal position to a vertical position, and the rear feeding component is used to change the steel plate from a vertical position to a horizontal position.
[0043] The control method in this embodiment is controlled by a controller. The controller circuit can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Furthermore, this document is mainly used to protect mechanical devices, and the control method and circuit connection will not be explained in detail here.
[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A water washing device for steel plates after pickling, characterized in that: The system includes a washing tank, a conveying assembly (1), a drying assembly (2), and a feeding assembly (3). The conveying assembly (1) can convey steel plates along a linear path. The drying assembly (2) is located on both sides of the conveying assembly (1). The feeding assembly (3) is located between the washing tank and the conveying assembly (1). The feeding assembly (3) includes a support (31), legs (32), two triangular support plates (33), and two feeding rollers (34). The legs (32) are located at the lower end of the support (31). The two triangular support plates (33) are arranged in a mirror image. The outer periphery of the two triangular support plates (33) is fixedly connected to the two opposite corners of the support (31). The two feeding rollers (34) are arranged parallel to each other. The two ends of each feeding roller (34) are rotatably connected to a triangular support plate (33). Each side surface of the steel plate is rotatably connected to the outer periphery of a feeding roller (34).
2. The water washing device for steel plate after pickling according to claim 1, characterized in that: The conveying assembly (1) includes a box (11), a conveying unit (12), a waste discharge box (13), support legs (14), a power unit (15), and a synchronization unit (16). Support legs (14) are provided around the lower end of the box (11). Multiple sets of conveying units (12) are arranged sequentially inside the box (11) along the conveying direction of the steel plate. The outer periphery of the waste discharge box (13) is slidably connected to the lower end of the box (11). A handle (131) is provided on the waste discharge box (13). The power unit (15) and the synchronization unit (16) are installed on the box (11), and the power unit (15) drives each conveying unit (12) to rotate synchronously through the synchronization unit (16).
3. The water washing device for steel plate after pickling according to claim 2, characterized in that: Each conveying unit (12) includes a power roller (121), a driven roller (122), two support plates (123), two sets of sliding structures (124), and rollers (125). The two support plates (123) are arranged in parallel to each other, and each support plate (123) is fixedly installed in the box (11). Each support plate (123) is provided with a set of sliding structures (124). The power roller (121) and the driven roller (122) are arranged in parallel to each other. The two ends of the power roller (121) are rotatably connected to a support plate (123), and the two ends of the driven roller (122) are rotatably connected to a set of sliding structures (124). The rollers (125) are set on the support plate (123) near the waste box (13), and the steel plate can roll forward on the rollers (125).
4. The water washing device for steel plate after pickling according to claim 3, characterized in that: The synchronization unit (16) includes a sprocket (127) and a chain (128). One end of each power roller (121) is fixedly connected to the sprocket (127). The output end of the power unit (15) is fixedly connected to one end of any power roller (121). The power unit (15) is fixedly installed on the housing (11). The sprocket (127) of each set of conveying units (12) is surrounded by a chain (128) to form a synchronous transmission structure.
5. The water washing device for steel plate after pickling according to claim 3, characterized in that: The sliding structure (124) includes a slider (1241), a lead screw (1242), and a handwheel (1243). Each support plate (123) has a square groove. The outer periphery of the slider (1241) is slidably connected in the square groove. The two ends of the driven roller (122) are rotatably connected to one end of the slider (1241). One end of the lead screw (1242) is rotatably connected to one side of the slider (1241). The other end of the lead screw (1242) is provided with a handwheel (1243). The outer periphery of the lead screw (1242) is threadedly connected to one end of the support plate (123).
6. The water washing device for steel plate after pickling according to claim 3, characterized in that: The roller (125) includes a U-shaped frame (1251), a roller (1252) and a roller body (1253). The lower end of the U-shaped frame (1251) is fixedly connected to the support plate (123). The two ends of the roller (1252) are respectively rotatably connected to a side wall of the open end of the U-shaped frame (1251). The roller body (1253) is fixedly sleeved on the outer periphery of the roller (1252). The side wall of the steel plate is rotatably connected to the roller body (1253).
7. The water washing device for steel plate after pickling according to claim 1, characterized in that: The drying assembly (2) includes an air inlet pipe (21), a jet support (22) and nozzles (23). The jet support (22) is located inside the housing (11), and multiple nozzles (23) are provided on the jet support (22). Each nozzle (23) is connected to a high-pressure air pump through the air inlet pipe (21), and the air inlet pipe (21) is installed inside the housing (11).