A pickling tank

Abstract

The utility model relates to pickling equipment discloses a pickling pool, include: pool body, steel skeleton and four connecting plates. Connecting plate fixed connection is in pool body back, and the multiple covering grooves on connecting plate cooperate to the outer wall of pool body to connect to steel skeleton. The clearance can be left between covering groove and frame body, between pool body and frame body, compensates the size difference of thermal expansion and cold shrink. The pool body four corner positions, pool body bottom position are vulnerable to pickling liquid, pickling liquid steam corrosion. Pool body and steel skeleton are separated, and the pool body outer surface is paint spraying treatment, and the steel skeleton outer surface is anticorrosive coating. The steel skeleton corresponding to the pool body four corner positions, pool body bottom position steel skeleton is exposed, and the anticorrosive coating can be multilayer glass fiber, multilayer resin layer composite. The beneficial effect that has: meet the requirement of pool body bending -resistant, deformation -resistant, rigidity, pool body and steel skeleton are more adaptable when thermal expansion and cold shrink, improve the corrosion resistance of steel skeleton.

Description

Technical Field

[0001] This utility model relates to pickling equipment, and in particular to a pickling tank. Background Technology

[0002] Pickling tanks are used to hold pickling solutions to remove oxide layers and stains from metal surfaces. The four vertical outer walls and bottom of the pickling tank are typically fixed with crisscrossing square steel bars, forming a grid-like pattern. The corresponding grid-like protrusions on the bottom and the four vertical outer walls are also fixedly connected. Pickling tanks are relatively large, and the static pressure is high when filled with pickling solution. These square steel bars enhance the tank's resistance to bending and deformation. Currently, pickling tanks and square steel bars, as well as the square steel bars themselves, are generally fixed by welding, followed by painting for corrosion protection.

[0003] The existing problems with this type of pickling tank are as follows: the pickling tank may need to be heated during the pickling process, and the pickling tank and square steel are welded and fixed together, which cannot well adapt to the thermal expansion and contraction caused by temperature changes; the pickling tank and square steel are painted together for corrosion protection, but the effect is generally poor, and applying the corresponding anti-corrosion coating together is relatively expensive. Utility Model Content

[0004] This application aims to provide a pickling tank that separates the tank body and the steel frame composed of square steel, and designs a connecting plate to connect the tank body and the steel frame. The tank body is painted, and the steel frame is coated with an anti-corrosion coating, which can solve the problems mentioned in the background art.

[0005] This application provides a pickling tank, comprising: a tank body, a steel frame, and four connecting plates; The pool has an opening at the top with an outward-facing flange; the four vertical outer walls of the pool are divided into an upper region, a middle region, and a lower region; the upper region has multiple liquid inlet ports, the middle region is smooth, and the lower region has a liquid outlet port. The steel frame is fitted around the pool body and has an anti-corrosion coating on its outer surface. The steel frame includes a frame-shaped body and a support frame. The frame-shaped body corresponds to the middle area of ​​the pool body and includes multiple rectangular frames from top to bottom and multiple first connecting strips connecting the multiple rectangular frames. The support frame corresponds to the lower area of ​​the pool body and includes a mesh base supporting the pool body and multiple second connecting strips connecting the four ends of the base and the frame-shaped body. Four connecting plates are fixedly connected to the central areas of the four vertical outer walls of the pool body; the connecting plates have a C-shaped covering groove at the position corresponding to the frame-like structure.

[0006] In some embodiments, there are multiple rectangular plates and an inverted plate that connects two adjacent rectangular plates to form a covering groove.

[0007] In some embodiments, there are gaps between the covering groove and the frame, and between the pool and the frame, and the gaps are filled with a filling layer.

[0008] In some embodiments, multiple reinforcing ribs are provided between the flange of the pool body and the upper region of the pool body; the covering groove of the connecting plate covers the uppermost rectangular frame of the frame-like frame, and the covering groove is also fixedly connected to the corresponding reinforcing rib.

[0009] In some embodiments, the lower region of the pool body has a groove; the outlet is located within the groove so that the outlet does not extend beyond the corresponding vertical outer wall of the pool body.

[0010] In some embodiments, the four connecting plates have the same external structure.

[0011] In some embodiments, the anti-corrosion coating includes: a fiberglass layer on the inner side and a resin layer on the outer side.

[0012] In some embodiments, an elastic pad is provided on the bottom surface of the pool.

[0013] In summary, this application discloses a pickling tank comprising: a tank body, a steel frame, and four connecting plates. After the connecting plates are fixedly connected to the tank body, multiple covering grooves on the connecting plates fit into the outer wall of the tank body to connect to the steel frame. Gaps can be left between the covering grooves and the frame, and between the tank body and the frame, to compensate for dimensional differences caused by thermal expansion and contraction. The four corners and the bottom of the tank body are susceptible to corrosion from pickling solution and pickling solution vapor. The tank body and the steel frame are separate; the tank body is painted, and the steel frame is coated with an anti-corrosion coating. The steel frame corresponding to the four corners and the bottom of the tank body is exposed, and the anti-corrosion coating can be a composite of multiple layers of fiberglass and multiple layers of resin. The beneficial effects include: meeting the requirements for bending resistance, deformation resistance, and rigidity of the tank body; better compatibility between the tank body and the steel frame during thermal expansion and contraction; and improved corrosion resistance of the steel frame. Attached Figure Description

[0014] To better illustrate the technical solutions in the embodiments of this application or the background art, the accompanying drawings used in the embodiments of this application or the background art will be described below.

[0015] Figure 1 This is a schematic diagram of the present application; Figure 2 This is a front view of the pool body and steel frame; Figure 3 This is a front view of this application; Figure 4 for Figure 3 Sectional view along the middle AA; Figure 5 for Figure 4 Enlarged schematic diagram of part B; Figure 6 This is a schematic diagram of an anti-corrosion coating. Figure 7This is a schematic diagram of the connecting plate; Figure 8 This is a schematic diagram showing the outlet of the liquid pipe inside the groove.

[0016] In the picture, 1. Tank body; 1A. Flanged edge; 1B. Upper area; 1C. Middle area; 1D. Lower area; 1E. Inlet pipe; 1F. Outlet pipe; 1G. Reinforcing rib; 1H. Groove; 2. Steel frame; 2A. Anti-corrosion coating; 2A1. Fiberglass layer; 2A2. Resin layer; 21. Frame-shaped frame; 211. Rectangular frame; 212. First connecting strip; 22. Support frame; 221. Mesh base; 222. Second connecting strip; 3. Connecting plate; 3A. Covering groove; 31. Rectangular plate; 32. C-shaped plate; 4. Filler layer; 5. Elastic gasket. Specific Implementation

[0017] The following description is provided in conjunction with the accompanying drawings, which are for illustrative purposes only and not strictly to scale. Unless otherwise defined, the technical or scientific terms used in this disclosure should be understood in their ordinary sense by one of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described object changes. Unless otherwise specified, the embodiments in this application can be combined with each other.

[0018] Please see Figure 1 , Figure 2 and Figure 3 A pickling tank includes: a tank body 1, a steel frame 2, and four connecting plates 3.

[0019] The tank body 1 has an opening at the top, with an outward-facing flange 1A around the opening. The four vertical outer walls of the tank body 1 are divided into an upper region 1B, a middle region 1C, and a lower region 1D. The upper region 1B has multiple inlet ports 1E, which are used to connect to a conveying device to deliver the pickling solution into the tank body 1. The middle region 1C is smooth, meaning its surface is flat and without any protrusions. The lower region 1D has an outlet port 1F, which is used to discharge the pickling solution from the tank body 1.

[0020] The steel frame 2 is fitted over the pool body 1. The steel frame 2 is composed of multiple sections of square steel welded together, and its top is also open, allowing the pool body 1 to be hoisted up and placed downwards into the steel frame 2. The outer surface of the steel frame 2 also has an anti-corrosion coating 2A.

[0021] Please see Figure 6 In some embodiments, the anti-corrosion coating 2A includes: a fiberglass layer 2A1 on the inner side and a resin layer 2A2 on the outer side.

[0022] Please see Figure 1 and Figure 2 The steel frame 2 includes a frame-like structure 21 and a support frame 22. The frame-like structure 21 corresponds to the middle region 1C of the pool body 1 and includes a multi-layered rectangular frame 211 from top to bottom and multiple first connecting strips 212 connecting the multi-layered rectangular frames 211. The support frame 22 corresponds to the lower region 1D of the pool body 1 and includes a mesh base 221 supporting the pool body 1 and multiple second connecting strips 222 connecting the four ends of the base and the frame-like structure 21.

[0023] Please see Figure 1 and Figure 3 Four connecting plates 3 are fixedly connected to the central regions 1C of the four vertical outer walls of the pool body 1, and the fixing method can be welding. The connecting plates 3 have a C-shaped covering groove 3A at the position corresponding to the frame 21, that is, the frame 21 is accommodated by the covering groove 3A, so that the connecting plates 3 can contact the vertical outer walls of the pool body 1. More specifically, for the uppermost rectangular frame 211 and the lowermost rectangular frame 211 of the frame 21, since they correspond to the upper and lower edges of the connecting plates 3, the upper and lower edges of the connecting plates 3 may or may not have covering grooves 3A; for the other rectangular frames 211 and the first connecting strip 212 of the frame 21, the corresponding positions of the connecting plates 3 all have covering grooves 3A.

[0024] After the connecting plate 3 is fixedly connected to the pool body 1, the multiple covering grooves 3A on the connecting plate 3 fit into the outer wall of the pool body 1 to connect to the steel frame 2. Gaps can be left between the covering grooves 3A and the frame 21, and between the pool body 1 and the frame 21, to compensate for the dimensional differences caused by thermal expansion and contraction. The four corners and the bottom of the pool body 1 are easily corroded by pickling solution and pickling solution vapor. The steel frame 2 corresponding to the four corners and the bottom of the pool body 1 is exposed. The outer surface of the steel frame 2 has an anti-corrosion coating 2A, which can be a composite of multiple layers of fiberglass and multiple layers of resin 2A2.

[0025] Please see Figure 1 and Figure 3In some embodiments, multiple reinforcing ribs 1G are provided between the flange 1A of the pool body 1 and the upper region 1B of the pool body 1. The covering groove 3A of the connecting plate 3 covers the uppermost rectangular frame 211 of the frame-shaped frame 21, and the covering groove 3A is also fixedly connected to the corresponding reinforcing rib 1G.

[0026] Increase the strength at the flange 1A to increase the stability of the connection between the pool body 1 and the connecting plate 3.

[0027] Please see Figure 3 and Figure 7 In some embodiments, the connecting plate 3 includes: a plurality of rectangular plates 31 and a plurality of U-shaped plates 32. The U-shaped plates 32 connect two adjacent rectangular plates 31 to form a covering groove 3A, and the fixed connection method can be welding.

[0028] Compared to stamping the entire plate to form the connecting plate 3 by creating the covering groove 3A, the connecting plate 3 is formed by welding multiple rectangular plates 31 and multiple C-shaped plates 32, which is cheaper and easier to process.

[0029] In some embodiments, the four connecting plates 3 have the same external structure. That is, the opening of the pool body 1 is square, and the first connecting strips 212 on the four edges of the rectangular frame 211 are also the same.

[0030] This way, only one type of connecting plate 3 needs to be manufactured, which can be installed on the four vertical outer walls of the pool body 1, making the manufacturing of the connecting plate 3 more convenient.

[0031] Please see Figure 3 , Figure 4 and Figure 5 In some embodiments, gaps exist between the covering groove 3A and the frame 21, and between the pool body 1 and the frame 21, with a filling layer 4 filling the gaps. More specifically, the filling layer 4 may be a foam strip.

[0032] The pool body 1 and the steel frame 2 can buffer the difference in thermal expansion and contraction to prevent cracking.

[0033] Please see Figure 2 In some embodiments, an elastic gasket 5 is provided on the bottom surface of the pool body 1. More specifically, the elastic gasket 5 can be made of EPDM rubber.

[0034] The elastic pad 5 is set as a buffer to avoid rigid contact and protect the bottom of the pool body 1.

[0035] Please see Figure 8 In some embodiments, the lower region 1D of the pool body 1 has a groove 1H. The outlet 1F is located within the groove 1H, so that the outlet 1F does not extend beyond the corresponding vertical outer wall of the pool body 1.

[0036] If the outlet pipe 1F extends beyond the vertical outer wall of the tank body 1, there will be interference when the tank body 1 is hoisted and placed downwards onto the steel frame 2. Therefore, the tank body 1 needs to be placed on the steel frame 2 first, and then the outlet pipe 1F installed. If the groove 1H is provided for the installation of the outlet pipe 1F, and the outlet pipe 1F does not extend beyond the vertical outer wall of the tank body 1, there will be no interference when the tank body 1 is hoisted and placed downwards onto the steel frame 2.

Claims

1. A pickling tank, characterized in that, include: The pool body (1), steel frame (2), and four connecting plates (3); The pool body (1) has an opening at the top, with an outward-facing flange (1A) at the opening position; the pool body (1) has four vertical outer walls divided into: an upper region (1B), a middle region (1C) and a lower region (1D); the upper region (1B) has multiple liquid inlet ports (1E), the middle region (1C) is smooth, and the lower region (1D) has a liquid outlet port (1F); The steel frame (2) is fitted over the pool body (1) and has an anti-corrosion coating (2A) on its outer surface. The steel frame (2) includes a frame-shaped frame (21) and a support frame (22). The frame-shaped frame (21) corresponds to the middle region (1C) of the pool body (1) and includes a multi-layer rectangular frame (211) from top to bottom and multiple first connecting strips (212) connecting the multi-layer rectangular frame (211). The support frame (22) corresponds to the lower region (1D) of the pool body (1) and includes a mesh base (221) supporting the pool body (1) and multiple second connecting strips (222) connecting the four ends of the base and the frame-shaped frame (21). Four connecting plates (3) are fixedly connected to the central area (1C) of the four vertical outer walls of the pool body (1); the connecting plates (3) have a U-shaped covering groove (3A) corresponding to the position of the frame (21).

2. The pickling tank according to claim 1, characterized in that, The connecting plate (3) includes: multiple rectangular plates (31) and an inverted plate (32) that connects two adjacent rectangular plates (31) and forms a covering groove (3A).

3. The pickling tank according to claim 1, characterized in that, There are gaps between the covering groove (3A) and the frame (21), and between the pool (1) and the frame (21), and the gaps are filled with a filling layer (4).

4. The pickling tank according to claim 1, characterized in that, Multiple reinforcing ribs (1G) are provided between the flange (1A) of the pool body (1) and the upper region (1B) of the pool body (1); the covering groove (3A) of the connecting plate (3) covers the uppermost rectangular frame (211) of the frame frame (21), and the covering groove (3A) is also fixedly connected to the corresponding reinforcing rib (1G).

5. The pickling tank according to claim 1, characterized in that, The lower region (1D) of the pool body (1) has a groove (1H); the outlet (1F) is located in the groove (1H) so that the outlet (1F) does not extend beyond the corresponding vertical outer wall of the pool body (1).

6. The pickling tank according to claim 1, characterized in that, The four connecting plates (3) have the same external structure.

7. The pickling tank according to claim 1, characterized in that, The anti-corrosion coating (2A) includes: a glass fiber layer (2A1) on the inner side and a resin layer (2A2) on the outer side.

8. The pickling tank according to claim 1, characterized in that, An elastic pad (5) is provided on the bottom surface of the pool body (1).

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