Pickling tank with heating function
By introducing a heating plate, a conveying screw, and a meandering gas flow channel into the pickling tank, the problems of pump corrosion and incomplete acid mist treatment during the pickling solution transportation process are solved, achieving efficient circulation of the pickling solution and full neutralization of acid mist.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MAOYING ELECTRONICS (SHANGHAI) CO LTD
- Filing Date
- 2025-07-23
- Publication Date
- 2026-06-09
AI Technical Summary
Existing pickling tanks with heating functions require pumps to transport the pickling solution during the circulating pickling process. Long-term use will corrode the pump body, and the acid mist and alkaline solution are difficult to fully contact and mix, resulting in poor acid mist treatment effect.
An acid pickling tank was designed, comprising an acid pickling box, a heating plate, a conveying pipe, a motor, a conveying screw, a filter assembly, and an acid mist treatment assembly. The acid pickling solution is uniformly heated by the heating plate, conveyed by the conveying screw and the conveying pipe, and the acid mist is fully mixed with the alkaline solution through a meandering gas flow channel.
It achieves effective circulation and impurity filtration of pickling solution, improving the pickling effect. At the same time, it ensures that acid mist and alkaline solution are fully mixed, improving the acid mist treatment effect and avoiding pump corrosion.
Smart Images

Figure CN224337733U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pickling technology, specifically to a pickling tank with a heating function. Background Technology
[0002] The pickling solution inside the pickling tank can remove rust from hardware parts. Pickling is an essential process in the processing of hardware parts. A heating structure is set in the pickling tank to ensure the temperature of the pickling solution, and an acid mist treatment structure is added to prevent acid mist from flowing directly into the air and avoiding environmental pollution.
[0003] For example, Chinese utility model patent CN217266031U discloses a pickling tank for hardware processing with acid mist removal function, belonging to the field of pickling, to solve the problems of difficult sediment removal, poor pickling effect of hardware parts, and acid mist affecting the working environment. The pickling tank includes a filling port on the top of the front side wall, with two sealing doors slidably connected in the filling port. Two conical openings are installed on the top end face of the pickling tank. A filter bucket is placed on the mounting platform on the rear side of the pickling tank. Valves and a pipeline pump are installed on the pipeline connecting the pickling tank and the filter bucket. The pipeline pump of the pickling tank with acid mist removal function draws pickling solution from the pickling tank through the pipeline and pumps it to the filter bucket. Then, the solution overflows from the filter bucket and returns to the pickling tank through the return pipe connected to the top right side of the filter bucket, so that the pickling solution in the pickling tank circulates, which facilitates the improvement of the pickling effect of hardware parts, and allows the filter bucket to filter impurities in the pickling tank, thereby reducing the deposition of impurities in the pickling tank.
[0004] Based on existing solutions and actual production and processing, existing pickling tanks with heating functions require pumps to transport the pickling solution during circulation. Long-term use will corrode the pump body. During the neutralization of acid mist, the acid mist cannot fully contact and mix with the alkaline solution. Therefore, we propose a pickling tank with heating function to solve the problems mentioned above. Utility Model Content
[0005] The purpose of this invention is to provide a pickling tank with a heating function to solve the problems mentioned in the background art. In the process of circulating pickling solution, the existing pickling tanks with heating function need to be transported by a pump, which will corrode the pump body after long-term use. In the process of neutralizing acid mist, the acid mist cannot fully contact and mix with the alkaline solution.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a pickling tank with a heating function, comprising a pickling box and heating plates installed at equal intervals inside it:
[0007] The front end of the pickling tank is equipped with a door through a sealing ring. A support frame is installed on the lower surface of the pickling tank. A first conveying pipe is installed at the bottom of the pickling tank. A second conveying pipe is fixed to the right end of the first conveying pipe. Motors are fixed on the left side of the first conveying pipe and the upper surface of the second conveying pipe. A conveying screw is fixed to the output end of the motor. A filter assembly for pickling liquid is provided between the second conveying pipe and the pickling tank.
[0008] The pickling tank is equipped with a protective cover at the top and a fan at the bottom of the protective cover. A folding pipe is connected to the top of the protective cover, and a treatment component for fully neutralizing acid mist is installed on the left side of the pickling tank.
[0009] Preferably, the bottom end of the pickling tank is connected to the top end of the first conveying pipe.
[0010] Preferably, the filter assembly includes a connecting box and a filter frame, the connecting box is fixed to the left side of the second delivery pipe, and the filter frame is fixedly installed inside the connecting box by screws.
[0011] Preferably, the processing assembly includes a processing box, an inclined plate, an air outlet groove, and an air outlet hole. The processing box is fixed to the left side of the pickling tank, and the inclined plate is fixed inside the processing box. An air outlet groove is opened inside the inclined plate, and an air outlet hole is opened at the top of the processing box.
[0012] Preferably, the bottom end of the folded tube passes through the inclined plate and is located at the inner bottom end of the processing box.
[0013] Preferably, the inclined plates are fixed at equal intervals inside the processing box, and the air outlet slots in the upper and lower sets of inclined plates are arranged on the left and right respectively.
[0014] Compared with the prior art, the beneficial effects of this utility model are: the pickling tank with heating function is convenient for conveying pickling liquid and for treating impurities in pickling liquid. The meandering gas flow channel allows acid mist and alkaline liquid to be fully mixed, improving the acid mist treatment effect.
[0015] 1. The bottom of the pickling tank is connected to the top of the first conveying pipe. The pickling solution is conveyed through the first conveying pipe, the second conveying pipe, the motor and the conveying screw, so that the pickling solution circulates inside the pickling tank, which improves the pickling effect of the hardware parts and facilitates the conveying of the pickling solution.
[0016] 2. The filter frame is fixed inside the connecting box with screws. During the pickling solution circulation process, the filter frame filters the impurities in the pickling solution. Remove the screws that connect the filter frame and the connecting box to easily remove the filter frame and remove the impurities inside the filter frame.
[0017] 3. Inclined plates are fixed at equal intervals inside the treatment box, and the air outlet slots in the upper and lower sets of inclined plates are set on the left and right respectively. The setting of the inclined plates and air outlet slots creates a meandering gas flow channel inside the treatment box, which allows the acid mist and alkaline liquid to mix fully and improve the acid mist treatment effect. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the first axial side structure of the present invention;
[0019] Figure 2 This is a schematic diagram of the first axial section structure of this utility model;
[0020] Figure 3 This is a schematic diagram of the second axial side section structure of this utility model;
[0021] Figure 4 This is a schematic diagram of the second axial side structure of the present invention;
[0022] Figure 5 This is a schematic diagram of the connection structure between the door and the pickling tank of this utility model.
[0023] In the diagram: 1. Pickling tank; 2. Tank door; 3. Heating plate; 4. Support frame; 5. First conveying pipe; 6. Second conveying pipe; 7. Motor; 8. Conveying screw; 9. Connecting box; 10. Filter rack; 11. Protective cover; 12. Fan; 13. Folding pipe; 14. Processing box; 15. Inclined plate; 16. Air outlet; 17. Air outlet. Detailed Implementation
[0024] 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.
[0025] Please see Figures 1-5 Existing pickling tanks with heating functions require the pickling solution to be transported by a pump during the circulation of pickling solution. Long-term use will corrode the pump body. During the neutralization of acid mist, the acid mist cannot fully contact and mix with the alkaline solution. In order to solve this technical problem, this embodiment discloses the following technical content.
[0026] A pickling tank with heating function includes a pickling box 1 and heating plates 3 evenly spaced inside. The pickling box 1 is supported by a support frame 4. The heating plates 3 are connected to an external power source. The pickling solution inside the pickling box 1 is evenly heated by the evenly spaced heating plates 3. A box door 2 is installed at the front end of the pickling box 1 through a sealing ring. Figure 5As shown, remove the door 2 and put the mesh cage containing the items to be pickled into the pickling tank 1. The pickling solution inside the pickling tank 1 pickles the items to remove rust. The bottom of the pickling tank 1 is connected to the top of the first conveying pipe 5. During the pickling process, the motor 7 fixed on the left side of the first conveying pipe 5 and the upper surface of the second conveying pipe 6 is started. The motor 7 drives the conveying screw 8 to rotate, and the rotation of the conveying screw 8 is used to transport the pickling solution to the top of the second conveying pipe 6.
[0027] Pickling solution is conveyed through the first conveying pipe 5, the second conveying pipe 6, the motor 7 and the conveying screw 8. The pickling solution flows to the pickling tank 1 through the connecting box 9 inside the filter assembly. Before flowing to the pickling tank 1, it is filtered by the filter frame 10. Impurities remain on the filter frame 10. Since the filter frame 10 is fixedly installed inside the connecting box 9 by screws, the screws used to connect the filter frame 10 and the connecting box 9 are removed, and the impurities inside the filter frame 10 are removed to prevent impurities from accumulating inside the filter frame 10.
[0028] A protective cover 11 is installed at the top of the pickling tank 1, and a fan 12 is installed at the bottom of the protective cover 11. A folding pipe 13 is connected to the top of the protective cover 11. A treatment component for fully neutralizing acid mist is installed on the left side of the pickling tank 1. The treatment component includes a treatment box 14, an inclined plate 15, an air outlet 16, and an air outlet 17. The air outlet 17 can be connected to an external gas treatment device. The treatment box 14 is fixed on the left side of the pickling tank 1, and an inclined plate 15 is fixed inside the treatment box 14. An air outlet 16 is opened inside the inclined plate 15. An air outlet 17 is opened at the top of the treatment box 14. The bottom end of the folding pipe 13 passes through the inclined plate 15 and is located at the bottom of the inside of the treatment box 14.
[0029] Under the action of fan 12, the acid mist inside the pickling tank 1 flows through the protective cover 11 and the deflector tube 13 to the bottom of the processing box 14. Since the inclined plates 15 are fixed at equal intervals inside the processing box 14, and the air outlet slots 16 in the upper and lower sets of inclined plates 15 are arranged on the left and right respectively, as... Figure 2 As shown, this creates a meandering gas flow channel inside the treatment box 14, allowing the gas to move slowly upwards. After the gas is fully mixed with the alkaline liquid, it flows out from inside the vent 17. A control valve is installed inside the vent 17 to ensure the effectiveness of acid mist treatment.
[0030] The above completes a series of operations for the pickling tank with heating function. The contents not described in detail in this instruction are existing technologies known to those skilled in the art.
[0031] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.
[0032] 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 pickling tank with heating function, comprising a pickling box (1) and heating plates (3) installed at equal intervals inside, characterized in that: The front end of the pickling tank (1) is fitted with a door (2) through a sealing ring. A support frame (4) is installed on the lower surface of the pickling tank (1). A first conveying pipe (5) is installed at the bottom of the pickling tank (1). A second conveying pipe (6) is fixed at the right end of the first conveying pipe (5). A motor (7) is fixed on the left side of the first conveying pipe (5) and the upper surface of the second conveying pipe (6). A conveying screw (8) is fixed at the output end of the motor (7). A filter assembly for pickling liquid is provided between the second conveying pipe (6) and the pickling tank (1). The pickling tank (1) is equipped with a protective cover (11) at the top and a fan (12) at the bottom of the protective cover (11). A folding pipe (13) is connected to the top of the protective cover (11). A treatment component for fully neutralizing acid mist is installed on the left side of the pickling tank (1).
2. The pickling tank with heating function according to claim 1, characterized in that: The bottom end of the pickling tank (1) is connected to the top end of the first conveying pipe (5).
3. The pickling tank with heating function according to claim 1, characterized in that: The filter assembly includes a connecting box (9) and a filter frame (10). The connecting box (9) is fixed to the left side of the second delivery pipe (6), and the filter frame (10) is fixedly installed inside the connecting box (9) by screws.
4. The pickling tank with heating function according to claim 1, characterized in that: The processing assembly includes a processing box (14), an inclined plate (15), an air outlet groove (16), and an air outlet (17). The processing box (14) is fixed on the left side of the pickling tank (1), and the inclined plate (15) is fixed inside the processing box (14). The inclined plate (15) has an air outlet groove (16) inside, and the processing box (14) has an air outlet (17) at the top.
5. A pickling tank with heating function according to claim 4, characterized in that: The bottom end of the folded tube (13) passes through the inclined plate (15) and is located at the bottom inside the processing box (14).
6. A pickling tank with heating function according to claim 4, characterized in that: The inclined plates (15) are fixed at equal intervals inside the processing box (14), and the air outlet slots (16) in the upper and lower two sets of inclined plates (15) are arranged on the left and right respectively.