A pickling device for seamless stainless steel pipes

Abstract

The application relates to a seamless stainless steel pipe pickling device, which comprises a box body provided with a spacing structure, the spacing structure comprises adjacent partition plates and matching plates which are coaxially rotationally connected to the side walls of the box body, and the partition plates and the matching plates are driven to rotate by a driving mechanism; the driving mechanism comprises a driving motor for driving the partition plates to rotate and a fixed motor for driving the matching plates to rotate, which are respectively fixed on the opposite two outer side walls of the box body. In the application, the driving motor drives the partition plates to rotate, and the fixed motor drives the matching plates to rotate, so that the upper parts of the coaxial partition plates and the matching plates can rotate in the opposite or the same direction; when the upper parts of the partition plates and the matching plates are far away from each other, a placing position is formed between the side wall of the box body and the partition plates, between the partition plates and the matching plates and between the matching plates and the other side wall of the box body, in the case of simultaneously processing multiple steel pipes, the stacking of the stainless steel pipes is reduced, the sufficiency of the contact between the surface of the stainless steel pipe and the pickling solution is improved, and the pickling effect is improved.

Description

Technical Field

[0001] This application relates to the technical field of steel pipe pickling, and in particular to a pickling apparatus for seamless stainless steel pipes. Background Technology

[0002] Seamless steel pipes are made from a single piece of metal and have no seams on their surface. Currently, seamless steel pipes are black after annealing and forming, and require pickling to remove the oxide layer and oil stains from their surface.

[0003] Regarding the aforementioned technologies, the applicant believes that currently, when seamless steel pipes are pickled, they are generally placed directly in the pickling solution in batches for static immersion pickling. Because the steel pipes are stacked together, the surface of the steel pipes cannot fully contact the pickling solution, resulting in insufficient pickling, which still needs improvement. Utility Model Content

[0004] In order to improve the sufficient contact between the stainless steel pipe surface and the pickling agent, reduce the stacking of stainless steel pipes together, and improve the pickling effect, this application provides a seamless stainless steel pipe pickling device.

[0005] The seamless stainless steel pipe pickling device provided in this application adopts the following technical solution: A seamless stainless steel pipe pickling device includes a tank for holding pickling solution. The tank is provided with a partition structure. The partition structure includes a partition plate and a mating plate rotatably connected to the side wall of the tank along a coaxial axis. The partition plate and the mating plate are arranged adjacent to each other and are driven to rotate by a driving mechanism. The driving mechanism includes a driving motor for driving the partition plate to rotate and a fixed motor for driving the mating plate to rotate. The fixed motor and the driving motor are respectively fixed to two opposite outer side walls of the tank.

[0006] By adopting the above technical solution, the drive motor drives the partition plate to rotate, and the fixed motor drives the mating plate to rotate, so that the upper parts of the coaxial partition plate and mating plate can rotate in opposite or opposite directions. When the upper parts of the partition plate and mating plate are close together, they can make way for the stainless steel pipes at the bottom of the box, providing more placement space. At the same time, the bottom of the partition plate and mating plate also serves to separate the stainless steel pipes at the bottom of the box. When the upper parts of the partition plate and mating plate are far apart, a placement position is formed between one side wall of the box and the partition plate, between the partition plate and the mating plate, and between the mating plate and the other side wall of the box. This reduces the stacking of stainless steel pipes when processing multiple steel pipes at the same time, improves the sufficient contact between the surface of the stainless steel pipe and the pickling agent, and enhances the pickling effect.

[0007] Preferably, the drive mechanism further includes a first rotating shaft fixed below the partition plate and a second rotating shaft fixed below the mating plate, the first rotating shaft being fixed to the output shaft of the drive motor and the second rotating shaft being fixed to the output shaft of the fixed motor.

[0008] By adopting the above technical solution, the first rotating shaft and the second rotating shaft are set below the partition plate and the mating plate, which increases the upper distance between the partition plate and the mating plate and provides more space for the stainless steel pipe above; at the same time, the lower distance between the partition plate and the mating plate is reduced, which reduces the space occupied by the stainless steel pipe below.

[0009] Preferably, both the partition plate and the mating plate have several through holes.

[0010] By adopting the above technical solution, the contact area between the pickling solution and the stainless steel pipe is increased.

[0011] Preferably, the partition structure further includes a partition plate, which is fixed to the bottom of the housing and located below the first and second rotating shafts.

[0012] By adopting the above technical solution, the partition plate divides the space at the bottom of the box into two parts, which facilitates the separation of the stainless steel pipes at the bottom of the box by the partition plate and the matching plate.

[0013] Preferably, the partition structure further includes a support plate, which is fixed to the opposite side wall of the box and can abut against the stainless steel pipe, and the height of the support plate is set according to the partition plate.

[0014] By adopting the above technical solution, the support plate set with the height corresponding to the partition plate cooperates with the partition plate to abut against both sides of the stainless steel pipe, thereby playing a role in separating and supporting the stainless steel pipe.

[0015] Preferably, the support plate extends downward at one end near the partition plate to form an abutment end.

[0016] By adopting the above technical solution, the inclined abutment end can better position the stainless steel pipe.

[0017] Preferably, the abutting end is provided with through holes spaced apart.

[0018] By adopting the above technical solution, through holes are set to increase the contact area between the pickling solution and the stainless steel pipe.

[0019] In summary, this application includes at least one of the following beneficial technical effects: The drive motor rotates the partition plate, and the fixed motor rotates the mating plate, allowing the upper parts of the coaxial partition plate and mating plate to rotate in opposite or opposite directions. When the upper parts of the partition plate and mating plate are close together, they make way for the stainless steel pipes at the bottom of the box, providing more space for placement. At the same time, the bottom of the partition plate and mating plate also serves to separate the stainless steel pipes at the bottom of the box. When the upper parts of the partition plate and mating plate are far apart, a placement position is formed between one side wall of the box and the partition plate, between the partition plate and the mating plate, and between the mating plate and the other side wall of the box. This reduces the stacking of stainless steel pipes when processing multiple steel pipes simultaneously, improves the contact between the surface of the stainless steel pipes and the pickling agent, and enhances the pickling effect. By placing the first and second rotating shafts below the partition plate and the mating plate, the upper distance between the partition plate and the mating plate is increased, providing more space for the stainless steel pipe above; at the same time, the lower distance between the partition plate and the mating plate is reduced, thus reducing the space occupied by the stainless steel pipe below. The partition plate divides the space at the bottom of the box into two parts. The support plate, which is set with a height corresponding to the partition plate, abuts against both sides of the stainless steel pipe, providing separation and support for the stainless steel pipe. The inclined abutment end better positions the stainless steel pipe. Through holes are provided to increase the contact area between the pickling solution and the stainless steel pipe. Attached Figure Description

[0020] Figure 1 This is a structural schematic diagram of an embodiment of this application; Figure 2 This is a partial cross-sectional structural schematic diagram highlighting the partition plate, support plate, and abutment end of an embodiment of this application; Figure 3 This is an exploded structural diagram highlighting the first rotating shaft of this application embodiment being mounted on a partition plate and the second rotating shaft being mounted on a mating plate.

[0021] Explanation of reference numerals in the attached drawings: 1. Box body; 2. Spacing structure; 21. Partition plate; 22. Support plate; 221. Abutting end; 222. Through hole; 23. Divider plate; 24. Mating plate; 3. Drive mechanism; 31. First rotating shaft; 32. Second rotating shaft; 33. Drive motor; 34. Fixed motor; 4. Through hole. Detailed Implementation

[0022] The present application will be further described in detail below with reference to the accompanying drawings.

[0023] This application discloses a pickling apparatus for seamless stainless steel pipes, referring to... Figure 1 It includes a box 1 for holding pickling solution, and a partition structure 2 is provided inside the box 1 to separate the stainless steel pipes placed inside the box 1, thereby reducing the situation where the stainless steel pipes are stacked together.

[0024] Reference Figure 1 , 2 The partition structure 2 includes a partition plate 21, which is fixed to the middle of the bottom of the box 1. The partition plate 21 divides the space at the bottom of the box 1 into two parts, which facilitates the separation of the stainless steel pipe at the bottom of the box 1.

[0025] Reference Figure 1 , 2 The partition structure 2 also includes a support plate 22, which is fixed to the opposite side wall of the box 1 and can abut against the side wall of the stainless steel pipe. The height of the support plate 22 corresponds to that of the partition plate 21. The support plate 22, whose height corresponds to that of the partition plate 21, cooperates with the partition plate 21 to abut against the two sides of the stainless steel pipe, and plays a role in separating and supporting the stainless steel pipe. The two corners above the partition plate 21 form rounded corners to reduce contact wear with the stainless steel pipe.

[0026] Reference Figure 2 The support plate 22 extends downward at one end near the partition plate 21 to form an abutment end 221. The upper surface of the inclined abutment end 221 contacts the stainless steel pipe, which better positions the stainless steel pipe. Through holes 222 are provided on the abutment end 221 at intervals. The through holes 222 increase the contact area between the pickling solution and the stainless steel pipe.

[0027] Reference Figure 1 The partition structure 2 also includes a partition plate 23 and a mating plate 24 that are rotatably connected to the side wall of the box body 1 on the same axis. Several through holes 4 are opened on the side walls of the partition plate 23 and the mating plate 24 to increase the contact area between the pickling solution and the stainless steel pipe.

[0028] Reference Figure 1 , 3 The partition plate 23 and the mating plate 24 are arranged adjacent to each other and driven to rotate by the drive mechanism 3. The drive mechanism 3 includes a first rotating shaft 31 fixed below the partition plate 23 and a second rotating shaft 32 fixed below the mating plate 24. The first rotating shaft 31 and the second rotating shaft 32 are arranged below the partition plate 23 and the mating plate 24, which increases the upper distance between the partition plate 23 and the mating plate 24 and provides more space for the stainless steel pipe above. At the same time, it reduces the lower distance between the partition plate 23 and the mating plate 24 and reduces the space occupied by the stainless steel pipe below. The partition plate 21 is located below the first rotating shaft 31 and the second rotating shaft 32.

[0029] Reference Figure 1The drive mechanism 3 also includes a drive motor 33 for driving the partition plate 23 to rotate and a fixed motor 34 for driving the mating plate 24 to rotate. The drive motor 33 and the fixed motor 34 are respectively fixed on two opposite outer side walls of the housing 1, and the output shafts of the drive motor 33 and the fixed motor 34 are rotatably connected to the corresponding side walls of the housing 1. The first rotating shaft 31 is fixed to the output shaft of the drive motor 33, and the second rotating shaft 32 is fixed to the output shaft of the fixed motor 34.

[0030] Reference Figure 1 , 3 The first rotating shaft 31 extends to the other end of the partition plate 23 away from the drive motor 33, and the second rotating shaft 32 extends to the other end of the mating plate 24 away from the fixed motor 34, providing stable support for the partition plate 23 and the mating plate 24, thereby improving the stability of the drive motor 33 and the fixed motor 34 in driving the partition plate 23 and the mating plate 24 to rotate.

[0031] Reference Figure 1 , 3 The upper parts of the coaxial partition plate 23 and mating plate 24 can rotate in opposite or opposite directions. When the upper parts of the partition plate 23 and mating plate 24 are close together, they can make way for the stainless steel pipes at the bottom of the housing 1, providing more space for placement. At the same time, the bottom of the partition plate 23 and mating plate 24, together with the support plate 22, also serve to separate the stainless steel pipes at the bottom of the housing 1. The drive motor 33 drives the partition plate 23 to rotate, and the fixed motor 34 drives the mating plate 24 to rotate. When the upper parts of the partition plate 23 and mating plate 24 are far apart, one side wall of the housing 1 and the upper end of the partition plate 23 form a placement position, and the other side wall of the housing 1 and the upper end of the mating plate 24 form a placement position. The upper parts of the intersecting partition plate 23 and mating plate 24 also form a placement position. This reduces the stacking of stainless steel pipes when processing multiple steel pipes at the same time, improves the contact between the surface of the stainless steel pipe and the pickling agent, and enhances the pickling effect.

[0032] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A seamless stainless steel pipe pickling apparatus, comprising a tank (1) for holding pickling solution, characterized in that: The housing (1) is provided with a partition structure (2). The partition structure (2) includes a partition plate (23) and a mating plate (24) that are rotatably connected to the side wall of the housing (1) on the same axis. The partition plate (23) and the mating plate (24) are arranged adjacent to each other and are driven to rotate by a drive mechanism (3). The drive mechanism (3) includes a drive motor (33) that drives the partition plate (23) to rotate and a fixed motor (34) that drives the mating plate (24) to rotate. The fixed motor (34) and the drive motor (33) are respectively fixed on the two opposite outer side walls of the housing (1).

2. The seamless stainless steel pipe pickling device according to claim 1, characterized in that: The drive mechanism (3) further includes a first rotating shaft (31) fixed below the partition plate (23) and a second rotating shaft (32) fixed below the mating plate (24). The first rotating shaft (31) is fixed to the output shaft of the drive motor (33), and the second rotating shaft (32) is fixed to the output shaft of the fixed motor (34).

3. The seamless stainless steel pipe pickling device according to claim 2, characterized in that: Both the partition plate (23) and the mating plate (24) are provided with several through holes (4).

4. The seamless stainless steel pipe pickling device according to claim 2, characterized in that: The partition structure (2) further includes a partition plate (21), which is fixed to the bottom of the box (1) and located below the first rotating shaft (31) and the second rotating shaft (32).

5. The seamless stainless steel pipe pickling device according to claim 3, characterized in that: The partition structure (2) also includes a support plate (22), which is fixed to the opposite side wall of the box (1) and can abut against the stainless steel pipe. The height of the support plate (22) corresponds to the partition plate (21).

6. The seamless stainless steel pipe pickling apparatus according to claim 5, characterized in that: The support plate (22) extends downward at one end near the partition plate (21) to form an abutment end (221).

7. The seamless stainless steel pipe pickling apparatus according to claim 6, characterized in that: The abutting end (221) is provided with a through hole (222) spaced apart.

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