Pickling tank with residue cleaning structure
By introducing structures such as movable frames, scrapers, and lifting plates into the pickling tank, the problems of inconvenient residue cleaning and leakage were solved, achieving efficient collection and safe cleaning of residue.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-03-24
AI Technical Summary
Existing pickling tanks have problems such as the bottom of the collection device protruding, making it difficult to move the residue, and the leakage of impurities and poor safety during the cleaning process.
Design an acid pickling tank with a residue cleaning structure, including a movable frame, a lower scraper, an upper scraper, a baffle, a collection frame, and a lifting plate. The scraper collects residue from the bottom and surface of the tank and stores it in the cleaning frame. Automated cleaning is achieved using a threaded rod and a motor drive system.
It enables efficient collection and storage of residues, prevents leakage, simplifies the cleaning process, and improves safety and cleaning efficiency.
Smart Images

Figure CN224031106U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pickling tank technology, and more specifically to a pickling tank with a residue cleaning structure. Background Technology
[0002] A galvanizing pickling tank is an important piece of equipment in metal surface treatment processes. It is primarily used to remove oxides, rust, and other impurities from the surfaces of metals such as steel, preparing them for subsequent hot-dip galvanizing. This process is commonly referred to as pickling, and the most frequently used acids are hydrochloric acid or sulfuric acid. During pickling, scale and rust residue detached from the metal surface will settle to the bottom of the tank or float on the surface, requiring regular cleaning to avoid affecting the normal operation of the pickling tank.
[0003] Chinese patent application number 202122251799.X discloses a high-efficiency pickling tank. The structure includes a tank body, a filter element, and a lifting element. The filter element is movably disposed within the tank body, and the lifting element is used to drive the filter element closer to or further away from the tank body. While this patent effectively collects and cleans bottom residue, it still has the following problems:
[0004] 1. The bottom of the collection device protrudes upwards, which helps the residue move to all sides, so that the residue will be located at the bottom of the collection net in a ring shape. When it is necessary to clean out the residue, it is necessary to move it around the filter net, which is very troublesome.
[0005] 2. After collecting the impurities from the filter screen, it is necessary to clean the impurities out of the filter screen. During the cleaning process, there is not only the problem of impurity leakage, but also the increase of safety hazards.
[0006] Therefore, it is necessary to propose an acid washing tank with a residue cleaning structure to solve the above problems. Utility Model Content
[0007] To address the above problems, this utility model provides an acid pickling tank with a residue cleaning structure, which collects residue from the bottom and surface of the tank and stores the collected residue in a cleaning rack for easy cleaning.
[0008] To achieve the above objectives, this utility model specifically adopts the following technical solution:
[0009] A pickling tank with a residue cleaning structure includes a tank body, a movable frame inside the tank body, a lower scraper and an upper scraper connected to one side of the movable frame, baffles arranged at equal intervals connected to one side of the upper scraper, a water leakage through hole opened at the lower part of the upper scraper, and a placement groove lower than the bottom surface of the tank body opened at one end of the tank body, and a cleaning frame is provided in the placement groove.
[0010] The cleaning frame comprises a collecting frame and a lifting plate, the lifting plate is slidingly connected to the collecting frame near one side of the moving frame, one end of the collecting frame is connected with a slag baffle, the slag baffle is provided with a lower opening slot and an upper opening slot, the upper opening slot corresponds to the position of the upper scraper, and the lifting plate is provided with a dross slot corresponding to the upper opening slot.
[0011] Preferably, the top of the lifting plate is provided with a baffle, a threaded rod is rotatably connected in the baffle, and the threaded rod is threadedly connected with the collecting frame.
[0012] Preferably, the top of the threaded rod extends out of the baffle, and a hand wheel is connected to the top of the threaded rod.
[0013] Preferably, the slag baffle is provided with a through hole for water leakage, and the through hole at the top of the slag baffle is larger than the through hole at the bottom.
[0014] Preferably, the top of the pool body is connected with a base, and the top of the base is connected with a protective fence on both sides.
[0015] Preferably, the inside of the base is provided with a sliding slot, a reciprocating screw rod is rotatably connected in the sliding slot, and the moving frame is threadedly connected with the reciprocating screw rod.
[0016] Preferably, one end of the pool body is connected with a motor, the output end of the motor and one end of the reciprocating screw rod are connected through a helical gear transmission structure, and the two reciprocating screw rods are connected through a chain transmission structure.
[0017] Compared with the prior art, the beneficial effects of the utility model lie in:
[0018] 1. The lower scraper and the upper scraper are arranged at one end of the moving frame, so that the residual slag on the bottom of the pool and the liquid surface can be collected, and the residual slag in the acid liquid during metal pickling is prevented from affecting the pickling efficiency.
[0019] 2. The collecting frame and the lifting plate are arranged in the inside of the pool body, so that the scraped residual slag can be collected and stored, the residual slag at the bottom and the liquid surface can enter the inside when the opening is opened, the residual slag can be prevented from leaking out when the opening is closed, the stable collection effect is achieved, and the residual slag is prevented from remaining when the residual slag is transferred. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 It is a schematic view of the pool body and the base structure in the utility model;
[0021] Figure 2 It is a schematic view of the structure of the cleaning frame in the utility model in the placing groove;
[0022] Figure 3 Figure 3 is a schematic view of the structure of the lifting plate and the collecting rack in the utility model;
[0023] Figure 4 Figure 4 is a schematic view of the structure of the base and the moving frame in the utility model.
[0024] Reference signs:
[0025] 101, pool body; 102, moving frame; 103, lower scraper; 104, upper scraper; 105, baffle; 106, chain transmission structure; 107, placing groove; 108, collecting rack; 109, lifting plate; 110, slag baffle; 111, lower open groove; 112, upper open groove; 113, scum groove; 114, baffle edge; 115, threaded rod; 116, base; 117, guardrail; 118, sliding groove; 119, reciprocating screw; 120, motor; 121, helical gear transmission structure. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0027] Please refer to Figures 1-4 The acid pickling pool with the residue cleaning structure comprises a pool body 101, the pool body 101 is filled with acid liquid, is used for acid pickling treatment of the surface of a metal piece, and the residue after acid pickling falls on the pool bottom, and part of the residue floats on the water surface. The inside of the pool body 101 is provided with a moving frame 102, the moving frame 102 moves reciprocatingly in the acid liquid through a driving device, one side of the moving frame 102 is connected with a lower scraper 103 and an upper scraper 104, one side of the upper scraper 104 is connected with baffles 105 arranged at equal intervals, the lower scraper 103 scrapes and cleans the residue falling on the bottom and pushes it to one end of a collecting rack 108, the middle part of the upper scraper 104 is flush with the liquid level of the acid liquid and is used for pushing the residue floating on the liquid level, the baffle 105 has the function of separating and limiting the residue, preventing the residue from moving on one side of the upper scraper 104 along with the flow of liquid, and the lower part of the upper scraper 104 is provided with through holes for water leakage, the through holes are used for the passage of water flow in the pushing process, reducing the water resistance when moving, one end of the pool body 101 is provided with a placing groove 107 lower than the bottom surface of the pool body 101, the placing groove 107 is provided with a cleaning rack, and the cleaning rack has the function of collecting and cleaning the residue in the acid liquid. It should be noted that all parts that will be in contact with the acid liquid are made of acid-resistant and corrosion-resistant materials.
[0028] The cleaning frame comprises a collecting frame 108 and a lifting plate 109 which is slidingly connected to the collecting frame 108 near one side of the moving frame 102. The lifting plate 109 can move up and down on one side of the collecting frame 108, so as to block the residue inlet on the collecting frame 108, preventing the collected residue from leaking out. One end of the collecting frame 108 towards the moving frame 102 is connected with a residue blocking plate 110. The residue blocking plate 110 is provided with a lower opening slot 111 and an upper opening slot 112. The residue at the bottom of the pool can enter the collecting frame 108 through the lower opening slot 111, and the residue on the liquid surface can enter the collecting frame 108 through the upper opening slot 112. The upper opening slot 112 corresponds to the position of the upper scraper 104. The lifting plate 109 is provided with a scum slot 113 corresponding to the upper opening slot 112. The lifting plate 109 is provided with a scum slot 113 corresponding to the upper opening slot 112. During use, the scum slot 113 and the upper opening slot 112 overlap, so that the scum on the liquid surface can enter the collecting frame 108. The bottom of the lifting plate 109 is also provided with a water leakage hole.
[0029] Specifically, referring to Figure 2 , the residue at the bottom of the pool enters the collecting frame 108 through the lower opening slot 111, and the scum on the liquid surface enters the collecting frame 108 through the upper opening slot 112. At this time, the scum slot 113 on the lifting plate 109 overlaps with the upper opening slot 112, which does not affect the entry of the residue. At the same time, the bottom of the lifting plate 109 overlaps with the area adjacent to the lower opening slot 111 and the upper opening slot 112 on the residue blocking plate 110, facilitating the passage of water flow. Figure 3 When cleaning the residue, referring to Figure 3 , the lifting plate 109 is located at the bottom of the collecting frame 108. At this time, the top part of the scum slot 113 overlaps with the upper opening slot 112, blocking the upper opening slot 112. The bottom part of the scum slot 113 overlaps with the lower opening slot 111, blocking the lower opening slot 111. At the same time, the part between the scum slot 113 and the lower opening slot 111 and the upper opening slot 112 overlaps, blocking the scum slot 113. At this time, the inlet has been blocked, preventing the residue inside from running out.
[0030] In another embodiment, the moving frame 102 is provided with a lower scraper 103 and an upper scraper 104 on both sides. The pool body 101 is provided with a cleaning frame at both ends, which can play a multiple cleaning role through reciprocating movement.
[0031] When the lower scraper 103 and the upper scraper 104 push the residue into the cleaning frame, the lifting plate 109 needs to be located at the bottom to play a blocking role, preventing the residue from running out. The following provides a structure for blocking the inlet to prevent the residue from running out: specifically, referring to Figure 2 and Figure 3The top of the lifting plate 109 is provided with a baffle 114 which can be pressed on the top of the collecting rack 108, at this time it indicates that the lifting plate 109 has fallen on the bottom of the collecting rack 108, the baffle 114 is rotatably connected with a threaded rod 115, the threaded rod 115 is threadedly connected with the collecting rack 108, by rotating the threaded rod 115, the distance between the baffle 114 and the collecting rack 108 can be adjusted, thereby changing the position of the lifting plate 109 on the collecting rack 108, and closing the slag inlet, the open state is shown in Figure 2 , and the closed state is shown in Figure 3 .
[0032] The following provides a structure for conveniently rotating the threaded rod 115: specifically, referring to Figure 3 , the top of the threaded rod 115 extends out of the baffle 114, the threaded rod 115 is rotatably connected on the baffle 114, the threads at the bottom of the threaded rod 115 are threadedly connected with the collecting rack 108, the top of the threaded rod 115 is connected with a hand wheel, by which the threaded rod 115 can be conveniently rotated, in another embodiment, the top of the baffle 114 is provided with a handle, which facilitates pulling the collecting rack 108 out of the pool.
[0033] When pulling the cleaning rack out of the acid liquid, the internal acid liquid will be taken out together, the following provides a structure for discharging the acid liquid: specifically, referring to Figure 3 , the slag retaining plate 110 is provided with a water leakage through hole, the through hole is small, so that the acid liquid can flow out, while the residue is retained, the through hole at the top of the slag retaining plate 110 is larger than that at the bottom, the small through hole at the bottom can intercept small residues.
[0034] When the pickling tank is used, it needs to be protected to prevent the situation that the person is too close to the acid liquid during use, specifically, referring to Figure 1 , the top of the pool body 101 is connected with a base 116, which can increase the distance between the acid liquid and the table top, and reduce the situation that the acid liquid splashes on the table top when flowing, the top of the base 116 is connected with a protective fence 117 on both sides, which plays a protective role on both sides of the acid liquid, in another embodiment, the two ends of the base 116 are also provided with protective fences 117.
[0035] The moving frame 102 needs to move in the pool body 101, after pushing the residue into the collecting rack 108, it needs to move back to the other end, the following provides a structure for driving the moving frame 102 to reciprocate: specifically, referring to Figure 1 and Figure 2The base 116 is internally provided with a sliding groove 118, and a reciprocating screw rod 119 is rotationally connected in the sliding groove 118. The reciprocating screw rod 119 is rotated to drive the movement of the moving frame 102 in the pool body 101, so that the moving frame 102 performs the cleaning scraping work. The moving frame 102 is threadedly connected with the reciprocating screw rod 119.
[0036] The two threaded rods 115 need to be synchronously rotated. The following provides a structure for driving the two threaded rods 115 to synchronously rotate. Figure 1 One end of the pool body 101 is connected with a motor 120, which is preferably a servo motor, for driving the reciprocating screw rod 119 to rotate. The output end of the motor 120 and one end of the reciprocating screw rod 119 are connected through a helical gear transmission structure 121. The motor 120 drives one reciprocating screw rod 119 to rotate through the helical gear transmission structure 121. The reciprocating screw rod 119 drives the other reciprocating screw rod 119 to rotate through the chain transmission structure 106. The two reciprocating screw rods 119 are connected through the chain transmission structure 106.
[0037] Embodiment:
[0038] When the residues in the pool body 101 need to be cleaned, the motor 120 is started. The motor 120 drives the two reciprocating screw rods 119 to rotate through the helical gear transmission structure 121 and the chain transmission structure 106, so as to drive the moving frame 102 to move towards the collecting frame 108. The lower scraper 103 performs the scraping action on the residues at the bottom of the pool. The middle position of the upper scraper 104 is flush with the liquid surface, and the residues floating on the liquid surface are intercepted. The movement of the residues is shown in Figure 2 When the residues are pushed into the collecting frame 108, the motor 120 is stopped. At this time, the hand wheel on the threaded rod 115 is rotated, so that the lifting plate 109 moves downwards, thereby forming Figure 3 the state. Then, the cleaning frame is pulled out of the pool. The acid liquid in the cleaning frame flows out from the through hole of the residue blocking plate 110. Then, the residues collected in the interior can be cleaned. Finally, the motor 120 continues to rotate, so that the moving frame 102 is reset.
[0039] The above embodiment is only a preferred embodiment of the present application, and cannot be used to limit the scope of protection of the present application. Any non-essential change and replacement made by a person skilled in the art on the basis of the present application belongs to the scope of protection of the present application.
Claims
1. A pickling tank with a residue cleaning structure, comprising a tank body (101), characterized in that: The pool body (101) is equipped with a movable frame (102) inside. A lower scraper (103) and an upper scraper (104) are connected to one side of the movable frame (102). A baffle (105) is connected to one side of the upper scraper (104) at equal intervals. A water-draining through hole is opened at the lower part of the upper scraper (104). A placement groove (107) lower than the bottom surface of the pool body (101) is opened at one end of the pool body (101). A cleaning rack is provided in the placement groove (107). The cleaning frame includes a collection frame (108) and a lifting plate (109). The lifting plate (109) is slidably connected to the side of the collection frame (108) near the moving frame (102). A slag baffle (110) is connected to one end of the collection frame (108) facing the moving frame (102). The slag baffle (110) has a lower opening groove (111) and an upper opening groove (112). The upper opening groove (112) corresponds to the position of the upper scraper (104). The lifting plate (109) has a scum trough (113) corresponding to the upper opening groove (112).
2. The pickling tank with a residue cleaning structure according to claim 1, characterized in that: The top of the lifting plate (109) is provided with a retaining edge (114), and a threaded rod (115) is rotatably connected inside the retaining edge (114). The threaded rod (115) is threadedly connected to the collection rack (108).
3. The pickling tank with a residue cleaning structure according to claim 2, characterized in that: A flange (114) extends from the top of the threaded rod (115), and a handwheel is connected to the top of the threaded rod (115).
4. The pickling tank with a residue cleaning structure according to claim 1, characterized in that: The slag baffle (110) has a water-leaking through hole, and the through hole at the top of the slag baffle (110) is larger than the through hole at the bottom.
5. The pickling tank with a residue cleaning structure according to claim 4, characterized in that: The top of the pool body (101) is connected to a base (116), and protective railings (117) are connected to both sides of the top of the base (116).
6. The pickling tank with a residue cleaning structure according to claim 5, characterized in that: The base (116) has a sliding groove (118) inside, and a reciprocating screw (119) is rotatably connected in the sliding groove (118). The moving frame (102) is threadedly connected to the reciprocating screw (119).
7. The pickling tank with a residue cleaning structure according to claim 6, characterized in that: One end of the pool body (101) is connected to a motor (120). The output end of the motor (120) and one end of the reciprocating screw (119) are connected through a helical gear transmission structure (121). The two reciprocating screws (119) are connected through a chain transmission structure (106).
Citation Information
Patent Citations
Pickling tank for efficient pickling
CN215757635U