A spray device for pickling tanks

Abstract

This utility model relates to the field of pickling tank technology, and provides a spray device for pickling tanks, including a pickling tank body. A filter structure is fixed on the inner wall of the bottom of the pickling tank body. The filter structure includes support plates fixed on the inner walls of both sides of the bottom of the pickling tank body. Limiting grooves are formed on both sides of the support plates, and limiting plates are provided inside the limiting grooves. This utility model, by setting up a filter structure, can intercept metal residues and particles under the filtering action of the filter holes, preventing the recycled pickling liquid from clogging the nozzle. With the locking connection between the limiting plates and the support plates, it can be easily and quickly disassembled for cleaning or replacement. The fixing action of the limiting shaft ensures a stable connection between the limiting plates and the support plates. This device achieves the function of easily filtering pickling liquid, improving the convenience and environmental friendliness of the spray device for the pickling tank during use.

Description

Technical Field

[0001] This utility model relates to the field of pickling tank technology, and in particular to a spray device for pickling tanks. Background Technology

[0002] In industries such as metal processing and electroplating, pickling is a key process for removing oxide layers and impurities from workpiece surfaces. Traditional immersion pickling suffers from problems such as high acid consumption, low efficiency, and poor uniformity. In contrast, spray pickling technology significantly improves reaction efficiency and resource utilization by atomizing acid under high pressure. Therefore, it is necessary to design a spray device for pickling tanks.

[0003] To address this, patent CN213596415U discloses a pickling tank spraying device for copper-clad steel production. The device includes a pickling tank, an acid tank fixedly connected to its rear side, a first water pump fixedly connected to the bottom of the acid tank, and a second water pump fixedly connected to the rear side of the acid tank. One end of a circulation pipe is fixedly connected to the inlet of the first water pump, and the other end of the circulation pipe extends into the bottom of the pickling tank. An inlet pipe is fixedly connected to the inlet of the second water pump. In this invention, the second water pump draws acid from the acid tank through the inlet pipe and then sprays it from an atomizing nozzle through a three-way connector, a first connecting pipe, and a second connecting pipe, ensuring uniform pickling of the steel wire with acid mist. The pickling solution accumulates at the bottom of the pickling tank, and the first water pump draws the accumulated acid back into the acid tank through the circulation pipe, allowing the acid to be recycled and reducing costs.

[0004] Although the pickling tank spray device mentioned above, produced by copper-clad steel, facilitates the recycling of acid during use, residual metal particles and impurities remain in the recycled acid, which can easily clog the nozzles. Therefore, it is necessary to design a spray device specifically for pickling tanks. Utility Model Content

[0005] The purpose of this invention is to provide a spraying device for pickling tanks, which solves the problem that existing spraying devices for pickling tanks have residual metal particles and impurities in the acid when using recycled acid, which easily clog the nozzles.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a spray device for pickling tank, including a pickling tank body;

[0007] A filter structure is fixed on the inner wall of the bottom of the pickling tank body. The filter structure includes a support plate fixed on the inner walls of both sides of the bottom of the pickling tank body. A limiting groove is opened on both sides of the inside of the support plate. A limiting plate is set inside the limiting groove. The top of the limiting plate extends to the outside of the support plate and is fixed with a filter plate. Filter holes are evenly opened inside the filter plate. A limiting shaft passes through the bottom of the limiting plate. Handles are fixed on both sides of the top of the filter plate.

[0008] Spray structures are fixed on the inner walls of both sides of the top of the pickling tank body, and a circulation structure is provided on one side of the pickling tank body.

[0009] Furthermore, the pickling tank body includes a washing tank, a pickling chamber, a top cover, a movable cover, and a drain pipe. The washing tank has a pickling chamber inside. The top cover is fixed on both sides of the top of the washing tank. The movable cover is hinged to the middle of the top of the washing tank. The drain pipe is fixed at the bottom of the washing tank.

[0010] Furthermore, the spray structure includes a main pipe, a delivery pipe, and nozzles. The main pipe is fixed to the inner walls on both sides of the top of the washing tank. Delivery pipes are evenly fixed to one side of the main pipe, and nozzles are fixed to one end of each delivery pipe.

[0011] Furthermore, the main pipe is symmetrically distributed on both sides of the washing tank, and the conveying pipe is evenly distributed on one side of the main pipe.

[0012] Furthermore, the filter holes are evenly distributed inside the filter plate, and the support plates are symmetrically distributed on both sides of the washing tank.

[0013] Furthermore, the limiting plate and the support plate are engaged and connected by a limiting groove, one end of the limiting shaft extends into the interior of the support plate, and the other end of the limiting shaft extends into the exterior of the washing tank.

[0014] Furthermore, the circulation structure includes a cover, a conveying pipe, a circulation box, a water pump, a pumping pipe, and a diversion pipe. The circulation box is located on one side of the washing tank. A cover is provided at the top of the circulation box. A water pump is installed on the inner wall at the bottom of the circulation box. A pumping pipe is fixedly installed at the output end of the water pump. A diversion pipe is fixed at the top of the pumping pipe. Conveying pipes are fixed on both sides of the top of the diversion pipe.

[0015] Furthermore, the end of the delivery line pipe away from the diversion pipe passes through the cover and enters the interior of the pickling chamber, where it is fixedly connected to the top of the filter plate.

[0016] Furthermore, the circulation tank and the washing tank are interconnected via a drain pipe.

[0017] The present invention provides a spraying device for pickling tanks, the advantages of which are:

[0018] By incorporating a filter structure, metal residues and particles can be intercepted through the filter holes, preventing the recycled pickling solution from clogging the nozzles. The engagement of the limiting plate and the support plate facilitates quick disassembly, cleaning, or replacement. The fixing action of the limiting shaft ensures a stable connection between the limiting plate and the support plate. This device achieves the function of facilitating the filtration of pickling solution, improving the convenience and environmental friendliness of the spray device in the pickling tank during use.

[0019] By incorporating a spray structure with symmetrically distributed nozzles and equally spaced delivery pipes, the acid solution is atomized and sprayed evenly onto the workpiece surface, avoiding cleaning dead zones. The nozzles employ a high-pressure atomization design, increasing the contact area between the acid solution and the workpiece and improving pickling efficiency. This device enables convenient atomized pickling of workpieces, enhancing the ease of use and work efficiency of the spray device in the pickling tank.

[0020] By incorporating a circulation structure and using a water pump to circulate the acid solution, the consumption of pickling solution can be reduced. The diversion effect of the distribution pipe ensures that the pickling solution is delivered evenly, ensuring stable pressure on the support plate during use. The filtered acid solution is collected, pressurized, and transported back to the spray system, forming a closed-loop circulation. This avoids direct discharge of waste liquid, meets environmental protection requirements, and enables the device to easily recycle waste liquid, thus improving the environmental friendliness of the spray device for the pickling tank during use. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the front cross-sectional structure of this utility model;

[0023] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0024] Figure 4 This is a three-dimensional structural schematic diagram of the main cross-section of this utility model;

[0025] Figure 5 This is a side view cross-sectional three-dimensional structural schematic diagram of the present invention;

[0026] Figure 6 This is a top-view cross-sectional three-dimensional structural diagram of the present invention.

[0027] Figure 7 This is a three-dimensional structural schematic diagram of the front cross-section of this utility model.

[0028] The following are the annotations in the diagram: 1. Pickling tank body; 11. Washing tank; 12. Pickling chamber; 13. Top cover; 14. Movable cover; 15. Drain pipe; 2. Spray structure; 21. Main pipe; 22. Conveying pipe; 23. Nozzle; 3. Filter structure; 31. Filter plate; 32. Filter hole; 33. Support plate; 34. Limiting groove; 35. Limiting plate; 36. Limiting shaft; 37. Handle; 4. Circulation structure; 41. Cover; 42. Conveying conduit; 43. Circulation box; 44. Water pump; 45. Pumping pipe; 46. Diversion pipe. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figures 1-7 The present invention provides a spray device for pickling tank, including pickling tank body 1.

[0031] Reference Figures 1-6 The pickling tank body 1 includes a washing tank 11, a pickling chamber 12, a top cover 13, a movable cover 14, and a drain pipe 15. The washing tank 11 has a pickling chamber 12 inside. Top covers 13 are fixed to both sides of the top of the washing tank 11. A movable cover 14 is hinged to the middle of the top of the washing tank 11. A drain pipe 15 is fixed to the bottom of the washing tank 11. A filter structure 3 is fixed to the inner wall of the bottom of the pickling tank body 1. The filter structure 3 includes support plates 33 fixed to the inner walls of both sides of the bottom of the pickling tank body 1. Limiting grooves 34 are formed on both sides of the support plates 33. Each limiting groove 34 has a... A limiting plate 35 is provided, the top of the limiting plate 35 extends to the outside of the support plate 33 and a filter plate 31 is fixed thereon. Filter holes 32 are evenly opened inside the filter plate 31. A limiting shaft 36 passes through the bottom of the limiting plate 35. Handles 37 are fixed on both sides of the top of the filter plate 31. The filter holes 32 are evenly distributed inside the filter plate 31. The support plate 33 is symmetrically distributed on both sides of the washing tank 11. The limiting plate 35 and the support plate 33 are engaged and connected by a limiting groove 34. One end of the limiting shaft 36 extends into the inside of the support plate 33 and the other end of the limiting shaft 36 extends into the outside of the washing tank 11.

[0032] With an external power supply, the waste liquid after pickling flows into the bottom of the tank. After passing through the filter holes 32 inside the filter plate 31, large particles of impurities are blocked. The purified acid liquid enters the circulation structure 4 for reuse. Pulling out the limiting shaft 36 can release the fixed restriction between the limiting plate 35 and the support plate 33, making it easy to remove the filter plate 31 from the inside of the pickling chamber 12, and making it easy to clean and replace the filter plate 31.

[0033] Reference Figure 2 , Figure 4 and Figure 6 Spray structures 2 are fixed on the inner walls of both sides of the top of the pickling tank body 1. The spray structure 2 includes a main pipe 21, a conveying pipe 22 and a nozzle 23. The main pipe 21 is fixed on the inner walls of both sides of the top of the washing tank 11. A conveying pipe 22 is evenly fixed on one side of the main pipe 21. A nozzle 23 is fixed at one end of each conveying pipe 22. The main pipe 21 is symmetrically distributed on both sides of the washing tank 11, and the conveying pipe 22 is evenly distributed on one side of the main pipe 21.

[0034] With an external power supply, the pickling solution is pumped from the circulation structure 4 to the main pipe 21, and then distributed to the nozzle 23 via the delivery pipe 22. Under pressure, it is atomized and sprayed out, which can spray the workpiece in all directions and avoid local over-spraying or under-spraying.

[0035] Reference Figure 1 and Figures 4-7 A circulation structure 4 is provided on one side of the pickling tank body 1. The circulation structure 4 includes a cover 41, a conveying pipe 42, a circulation box 43, a water pump 44, a pumping pipe 45, and a diversion pipe 46. The circulation box 43 is located on one side of the washing tank 11. The top of the circulation box 43 is provided with a cover 41. A water pump 44 is installed on the inner wall of the bottom of the circulation box 43. A pumping pipe 45 is fixedly installed at the output end of the water pump 44. A diversion pipe 46 is fixed at the top of the pumping pipe 45. Conveying pipes 42 are fixed on both sides of the top of the diversion pipe 46. The end of the conveying pipe 42 away from the diversion pipe 46 passes through the cover 41 and enters the interior of the pickling chamber 12 and is fixedly connected to the top of the filter plate 31. The circulation box 43 and the washing tank 11 are connected to each other through the drain pipe 15.

[0036] When an external power source is connected, the water pump 44 is started. The water pump 44 draws pickling solution from the bottom of the circulation tank 43 and then delivers the pickling solution to the distribution pipe 46 through the pumping pipe 45. The distribution pipe 46 distributes the pickling solution to the main pipe 21 through the delivery line pipe 42 to complete the circulation. The drain pipe 15 is connected to the circulation tank 43 to realize the recovery of waste liquid.

[0037] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A spraying device for a pickling tank, comprising a pickling tank body (1); Its features are: A filter structure (3) is fixed on the inner wall of the bottom of the pickling tank body (1). The filter structure (3) includes a support plate (33) fixed on the inner walls of the bottom two sides of the pickling tank body (1). A limiting groove (34) is opened on both sides of the inside of the support plate (33). A limiting plate (35) is provided inside the limiting groove (34). The top of the limiting plate (35) extends to the outside of the support plate (33) and a filter plate (31) is fixed thereon. Filter holes (32) are evenly opened inside the filter plate (31). A limiting shaft (36) passes through the bottom of the limiting plate (35). A handle (37) is fixed on both sides of the top of the filter plate (31). Spray structures (2) are fixed on the inner walls of both sides of the top of the pickling tank body (1), and a circulation structure (4) is provided on one side of the pickling tank body (1).

2. A spray device for an acid pickling tank according to claim 1, characterized in that: The pickling tank body (1) includes a washing tank (11), a pickling chamber (12), a top cover (13), a movable cover (14), and a drain pipe (15). The washing tank (11) has a pickling chamber (12) inside. The top cover (13) is fixed on both sides of the top of the washing tank (11). The movable cover (14) is hinged to the middle position of the top of the washing tank (11). The drain pipe (15) is fixed at the bottom of the washing tank (11).

3. A spray device for an acid pickling tank according to claim 1, characterized in that: The spray structure (2) includes a main pipe (21), a delivery pipe (22) and a nozzle (23). The main pipe (21) is fixed on the inner wall of both sides of the top of the washing tank (11). The delivery pipe (22) is evenly fixed on one side of the main pipe (21), and the nozzle (23) is fixed on one end of the delivery pipe (22).

4. A spray device for an acid pickling tank according to claim 3, wherein: The main pipe (21) is symmetrically distributed on both sides of the washing tank (11), and the conveying pipe (22) is evenly distributed on one side of the main pipe (21).

5. A spraying device for a pickling tank according to claim 1, characterized in that: The filter holes (32) are evenly distributed inside the filter plate (31), and the support plates (33) are symmetrically distributed on both sides of the washing tank (11).

6. A spraying device for a pickling tank according to claim 1, characterized in that: The limiting plate (35) and the support plate (33) are engaged and connected by a limiting groove (34). One end of the limiting shaft (36) extends into the interior of the support plate (33), and the other end of the limiting shaft (36) extends into the exterior of the washing tank (11).

7. A spraying device for a pickling tank according to claim 1, characterized in that: The circulation structure (4) includes a cover (41), a conveying pipe (42), a circulation box (43), a water pump (44), a pumping pipe (45), and a diversion pipe (46). The circulation box (43) is located on one side of the washing tank (11). The top of the circulation box (43) is provided with a cover (41). The water pump (44) is installed on the inner wall of the bottom of the circulation box (43). The output end of the water pump (44) is fixedly installed with a pumping pipe (45). The top of the pumping pipe (45) is fixed with a diversion pipe (46). The two sides of the top of the diversion pipe (46) are both fixed with conveying pipes (42).

8. A spraying device for a pickling tank according to claim 7, characterized in that: The end of the delivery line (42) away from the diversion pipe (46) passes through the cover (41) and enters the interior of the pickling chamber (12), and is fixedly connected to the top of the filter plate (31).

9. A spraying device for a pickling tank according to claim 7, characterized in that: The circulation tank (43) and the washing tank (11) are connected to each other through the drain pipe (15).

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