Strip pickling and cleaning device

Abstract

The application discloses a strip pickling cleaning device and belongs to the technical field of pickling. Mainly includes: two groups of bases; the cleaning mechanism is installed on the upper end of the base, the cleaning mechanism contains the first cleaning part and the second cleaning part which are arranged in an upper-lower mirror image mode, the first cleaning part and the second cleaning part are arranged in the same way, the first cleaning part comprises: a fixed frame arranged on the upper end of the base; a mounting groove arranged in the fixed frame; a spray pipe arranged in the mounting groove; a spray head arranged on the spray pipe; a gap formed between the first cleaning part and the second cleaning part for the strip to pass through, and the spray direction of the spray head is aligned with the internal space of the gap. The strip pickling cleaning device provided in the application can clean the strip.

Description

Technical Field

[0001] This application relates to the field of pickling technology, specifically to a plate and strip pickling and cleaning device. Background Technology

[0002] In the field of sheet metal processing, pickling is a key process for removing oxide scale from the surface of sheet metal. Among them, sheet metal pickling is a key surface treatment process in the continuous processing of sheet metal (especially steel). Its essence is to remove oxide scale, rust layer and impurities from the surface of sheet metal through chemical corrosion, so as to provide a clean substrate for subsequent cold rolling, coating and other processes.

[0003] For example, patent CN218203062U discloses a strip pickling device. This patent uses a sliding device and a telescopic device to move the strip receiving tank flexibly, so that the strip is always below the surface of the pickling solution, ensuring that it can be fully pickled.

[0004] However, after treatment with strong acids such as hydrochloric acid and sulfuric acid, highly corrosive acid and reaction products will remain on the surface of the strip. If cleaning is not thorough, chloride ions will penetrate into the metal substrate and cause pitting corrosion, resulting in perforation of the strip during subsequent storage or plating processes, thus leading to strip corrosion problems.

[0005] Therefore, it is necessary to provide a strip pickling and cleaning device to solve the above problems.

[0006] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Summary of the Invention

[0007] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is to provide a strip pickling and cleaning device, which solves the corrosion problem caused by the failure to clean the strip after it has been treated with strong acids such as hydrochloric acid and sulfuric acid.

[0008] The technical solution adopted by this application to solve its technical problem is: a strip pickling and cleaning device, comprising:

[0009] Two sets of bases;

[0010] A cleaning mechanism is mounted on the upper end of the base. The cleaning mechanism includes a first cleaning section and a second cleaning section arranged in a mirror image. The first cleaning section and the second cleaning section are identical in configuration. The first cleaning section includes:

[0011] A fixing frame is disposed at the upper end of the base;

[0012] The mounting slot is formed inside the fixing frame;

[0013] The nozzle is disposed inside the mounting slot;

[0014] A nozzle, which is mounted on the nozzle pipe;

[0015] A gap is formed between the first cleaning section and the second cleaning section for the strip to pass through, and the spray direction of the nozzle is aligned with the internal space of the gap.

[0016] Furthermore, multiple sets of slots are formed inside the fixed frame, the slots penetrate the top wall of the fixed frame and correspond to the position of the nozzle, and the spraying end of the nozzle is embedded in the slots.

[0017] Furthermore, one end of the nozzle is provided with a water inlet extending to the outside of the fixed frame.

[0018] Furthermore, a connecting block and fixing bolts are provided between the first cleaning section and the second cleaning section.

[0019] Furthermore, a washer may be added between the nut of the fixing bolt and the connecting block, or the connecting block may be replaced with one of different thicknesses.

[0020] Furthermore, the jet stream from the nozzle forms a confluence area in the middle of the slit.

[0021] Furthermore, the cleaning mechanisms are arranged in multiple series, with adjacent cleaning mechanisms having a fixed spacing of meters, and the spraying pressure gradually increases along the direction of the conveyor belt travel.

[0022] The beneficial effects of this application are: the plate and strip acid washing and cleaning device provided by this application achieves the effect of cleaning the plate and strip by setting up a cleaning mechanism.

[0023] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0024] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0025] In the attached diagram:

[0026] Fig. 1 This is an overall schematic diagram of a strip pickling and cleaning device according to this application;

[0027] Fig. 2 This is a side view of the entire strip pickling and cleaning device according to this application;

[0028] The following are the labeling elements in the figure:

[0029] 1. Base; 2. Cleaning mechanism; 20. First cleaning section; 201. Fixing frame; 202. Spray pipe; 203. Mounting groove; 204. Groove; 205. Nozzle; 206. Water inlet; 21. Connecting block; 22. Fixing bolt; 24. Second cleaning section; 23. Gap. Detailed Implementation

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0032] like Figs. 1-2 As shown, this application provides a strip pickling and cleaning device, which is mainly installed in the rinsing tank or post-processing section of the pickling production line. It is used to efficiently rinse the residual acid and impurities on the surface of the pickled metal strip. Specifically, the cleaning device includes two sets of bases 1 arranged symmetrically on the left and right. The bases 1 are fixed to the production line foundation plane by anchor bolts.

[0033] To support the cleaning function unit, a cleaning mechanism is installed in parallel on the upper surface of the two sets of bases 1. The cleaning mechanism 2 consists of a first cleaning part 20 and a second cleaning part 24 arranged symmetrically on the upper and lower sides. The first cleaning part 20 is directly fixed to the upper surface of the base 1 so that the plate and strip can be cleaned in the future.

[0034] Specifically, the first cleaning unit 20 includes a fixed frame 201 fixedly installed on the upper end of two sets of bases 1. The fixed frame 201 is vertically fixed to the upper end of the base 1 by welding or bolts. In order to achieve the requirement of built-in spray, a through-type mounting groove 203 is provided inside the fixed frame 201 along the length direction. A spray pipe 202 is provided inside the mounting groove 203. The water inlet end of the spray pipe 202 extends to the outside of the side wall of the fixed frame 201 and is provided with a water inlet 206. The water inlet 206 is connected to an external high-pressure water pump through a hose, so as to continuously input the rinsing water source into the spray pipe 202.

[0035] To form a directional spray surface, multiple sets of nozzles 205 are welded at intervals on the side of the spray pipe 202 facing the direction of the strip's movement. Correspondingly, slots 204 matching the positions of the nozzles 205 are opened in the top of the fixed frame 201. These slots 204 vertically penetrate the top wall of the fixed frame 201, thus exposing the spraying ends of the nozzles 205 in the slots 204. This allows water to flow unimpeded through the fixed frame 201 and directly act on the surface of the strip.

[0036] To achieve simultaneous cleaning of both sides of the strip, a second cleaning section 24 is mirrored above the first cleaning section 20. The second cleaning section 24 has the same structure as the first cleaning section 20 so that the strip can be cleaned in the future.

[0037] Furthermore, a connecting block 21 is provided at each end between the first cleaning section 20 and the second cleaning section 24. The connecting block 21 is simultaneously snapped onto the outside of the fixing frame 201 of the first cleaning section 20 and the second cleaning section 24. In order to lock the first cleaning section 20 and the second cleaning section 24, a fixing bolt 22 is provided through the connecting block 21 and the two sets of fixing frames 201. Thus, by tightening the bolt, the first cleaning section 20 and the second cleaning section 24 form a rigid whole, preventing vibration displacement caused by high pressure water flow.

[0038] It should be noted that a gap 23 is formed between the first cleaning section 20 and the second cleaning section 24, and a shim is added between the nut of the fixing bolt 22 and the connecting block 21 or the connecting block 21 of different thickness is replaced, so that the width of the gap 23 can be adjusted by adding or removing shims to accommodate the passage of plate strips of different thicknesses. The slots 204 of the upper and lower fixing frames 201 face the inside of the gap 23, so that the jet flow of the nozzle 205 covers the full width of the upper and lower surfaces of the plate strip, so that the plate strip can be cleaned.

[0039] During operation, the pickled strip can be horizontally inserted into the gap 23. Then, the external water pump is started, and high-pressure water flows through the inlet 206 into the spray pipe 202. It forms a counter-flow water curtain through the symmetrical nozzles 205. The water flows through the slot 204 and is sprayed vertically onto the upper and lower surfaces of the strip to peel off the residual acid and oxide scale.

[0040] It should be noted that in actual production lines, this device is arranged in multiple sets in series, with each set spaced 2-3 meters apart, achieving thorough cleaning through segmented rinsing.

[0041] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A plate and strip acid washing and cleaning device, characterized in that: include: Two sets of bases (1); A cleaning mechanism (2) is mounted on the upper end of the base (1). The cleaning mechanism (2) includes a first cleaning section (20) and a second cleaning section (24) arranged in a mirror image. The first cleaning section (20) and the second cleaning section (24) are identically configured. The first cleaning section (20) includes: A fixing frame (201) is disposed on the upper end of the base (1); Mounting slot (203) is formed inside the fixing frame (201); The nozzle (202) is disposed inside the mounting groove (203); A nozzle (205) is disposed on the nozzle (202); A gap (23) is formed between the first cleaning section (20) and the second cleaning section (24) for the strip to pass through, and the spray direction of the nozzle (205) is aligned with the interior space of the gap (23).

2. The plate and strip acid washing and cleaning device according to claim 1, characterized in that: Multiple sets of slots (204) are opened inside the fixed frame (201). The slots (204) penetrate the top wall of the fixed frame (201) and correspond to the position of the nozzle (205). The spraying end of the nozzle (205) is embedded in the slots (204).

3. The plate and strip acid washing and cleaning device according to claim 1, characterized in that: One end of the nozzle (202) is provided with a water inlet (206) extending to the outside of the fixed frame (201).

4. The plate and strip acid washing and cleaning device according to claim 1, characterized in that: A connecting block (21) and a fixing bolt (22) are provided between the first cleaning section (20) and the second cleaning section (24).

5. The plate and strip acid washing and cleaning device according to claim 4, characterized in that: A washer may be added between the nut of the fixing bolt (22) and the connecting block (21) or the connecting block (21) may be replaced with one of different thicknesses.

6. The plate and strip acid washing and cleaning device according to claim 1, characterized in that: The jet stream from the nozzle (205) forms a confluence area in the middle of the slit (23).

7. The plate and strip acid washing and cleaning device according to claim 1, characterized in that: The cleaning mechanism (2) is arranged in multiple series, with a fixed spacing of meters between adjacent cleaning mechanisms (2), and the spraying pressure increases step by step along the direction of the conveyor belt.

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