Galvanizing pool

Abstract

The utility model provides a galvanizing bath which comprises a galvanizing bath main body, driving devices are respectively arranged on the opposite side walls of the galvanizing bath main body, a scraping device used for scraping residual waste residues on the liquid level is arranged between the two groups of driving devices, and an overflow hole is formed in the outer side wall of the galvanizing bath main body; a precipitation mechanism is mounted on the same side wall of the galvanizing pool main body and the overflow hole; a filtering mechanism connected with the precipitation mechanism is further arranged on the side, close to the precipitation assembly, of the galvanizing pool main body, and overflowing liquid flows back into the galvanizing pool main body after being filtered; according to the utility model, the problems existing in the aspects of waste residue treatment and liquid recycling of the traditional galvanizing bath are solved, the automation degree and the operation efficiency of the galvanizing bath are improved, the production cost is reduced, and powerful support is provided for green development of the metal surface treatment industry.

Description

Technical Field

[0001] This utility model relates to the field of galvanizing equipment, and more particularly to a galvanizing tank. Background Technology

[0002] A galvanizing bath typically consists of a bath body, a heating system, a stirring system, an electroplating solution circulation system, and a waste residue treatment system. The electroplating solution is generally an aqueous solution containing zinc ions, which are deposited onto the metal surface through electrolysis to form a zinc layer. During use, waste residues are continuously generated in the electroplating solution, such as oxide scale, unreacted metal powder, and precipitates of electroplating additives. These waste residues not only affect the quality of the electroplating solution and reduce the quality of the coating, but may also clog pipes and equipment, affecting the normal operation of the entire electroplating process.

[0003] Traditional galvanizing baths typically use periodic manual cleaning to remove waste residue. This method is not only inefficient but also poses safety hazards. Furthermore, manual cleaning makes it difficult to ensure complete removal of waste residue, leaving dead spots that affect the quality of the electroplating solution. Moreover, the presence of waste residue makes it difficult to recycle the electroplating solution, requiring frequent replacements and increasing production costs. Utility Model Content

[0004] To address the problems of waste residue treatment and liquid recycling in traditional galvanizing tanks in the prior art, this utility model provides a galvanizing tank.

[0005] The galvanizing bath provided by this utility model adopts the following technical solution:

[0006] A galvanizing tank includes a galvanizing tank body. Driving devices are respectively installed on opposite sidewalls of the galvanizing tank body. A scraping device for scraping away residual waste from the liquid surface is installed between two sets of driving devices. An overflow hole is provided on the outer sidewall of the galvanizing tank body. A sedimentation mechanism is installed on the same sidewall of the galvanizing tank body and the overflow hole. A filtration mechanism connected to the sedimentation mechanism is also provided on the side of the galvanizing tank body near the sedimentation assembly, filtering the overflowing liquid and returning it to the galvanizing tank body.

[0007] Furthermore, a filter screen is detachably connected inside the galvanizing tank body; a drain pipe is installed through the outer wall of the galvanizing tank body; and the bottom of the interior of the galvanizing tank body is an inclined surface structure sloping towards the drain pipe.

[0008] Furthermore, the driving device includes a slide rail, a lead screw, a motor, a slider, a bracket, and a support plate. Slide rails are bolted to opposite side walls of the galvanizing tank body. A lead screw is rotatably connected inside the slide rail. A motor is bolted to the outer side wall of the galvanizing tank body, and one end of the lead screw passes through the side wall of the slide rail and is connected to the output end of the motor via a coupling. A slider is slidably connected inside the slide rail. The slider and the lead screw are threaded together. A bracket is welded to the top of the slider. A support plate is bolted between two brackets.

[0009] Furthermore, the scraping device includes a cylinder, a scraper, and a liquid level sensor; the cylinder is bolted to the top of the support plate; the push rod of the cylinder passes through the support plate and is connected to the scraper; at least two liquid level sensors are installed on the outer wall of the scraper.

[0010] Furthermore, the scraper has a rectangular cross-section with concave sides; the liquid level sensor is located on the inner side of the concave surface.

[0011] Furthermore, the sedimentation assembly includes a liquid collection hopper, a sedimentation pipe, and a slag discharge pipe; a liquid collection hopper is welded to the side wall of the galvanizing tank body where the overflow hole is opened, and one end of a U-shaped sedimentation pipe is welded to the bottom of the liquid collection hopper; a slag discharge pipe is welded to the bottom of the sedimentation pipe; the horizontal height of the other end of the sedimentation pipe is lower than the height of the overflow hole, and the height of the liquid collection hopper is higher than the height of the overflow hole.

[0012] Furthermore, the filtration mechanism includes a filter chamber, a water pump, an inlet pipe, and a screen; the other end of the sedimentation pipe is connected to the outer wall of the filter chamber and extends into the interior; at least two screens are detachably installed on the inner wall of the filter chamber; a water pump is bolted to the bottom of the filter chamber; the outlet end of the water pump is connected to one end of the inlet pipe; the other end of the inlet pipe extends through the outer wall of the filter chamber into the interior of the galvanizing tank.

[0013] Furthermore, the mesh size of the various screens increases sequentially from top to bottom.

[0014] In summary, the beneficial effects of this utility model are as follows:

[0015] This invention uses a motor-driven lead screw to move a scraper above the galvanizing tank, thus removing waste residue from the liquid surface. The application of a liquid level sensor allows the scraper to be precisely positioned on the liquid surface, improving scraping efficiency and accuracy. By incorporating a sedimentation mechanism and a multi-layered filtration system, preliminary sedimentation and efficient filtration of the overflowing liquid are achieved, effectively removing waste residue particles and improving the quality of the returned liquid. This invention solves the problems of waste residue treatment and liquid recycling in traditional galvanizing tanks, improves the automation level and operating efficiency of the galvanizing tank, reduces production costs, and provides strong support for the green development of the metal surface treatment industry. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a top view of the overall structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of this utility model;

[0019] Figure 4 This utility model Figure 3 An enlarged schematic diagram of part A in the middle.

[0020] As shown in the diagram: 1-Galvanizing tank body, 11-Filter screen, 12-Drain pipe, 13-Overflow hole, 2-Slide rail, 21-Screw rod, 22-Motor, 23-Slider, 24-Bracket, 25-Support plate, 3-Cylinder, 31-Scraper, 32-Liquid level sensor, 4-Collection hopper, 41-Sedimentation pipe, 42-Slag discharge pipe, 5-Filter chamber, 51-Water pump, 52-Inlet pipe, 53-Screw screen. Detailed Implementation

[0021] The following is in conjunction with the appendix Figure 1-4 The present invention will be further described in detail below:

[0022] This utility model discloses a galvanizing bath, such as Figure 1 , 2 As shown, a galvanizing tank includes a galvanizing tank body 1. Driving devices are respectively installed on opposite side walls of the galvanizing tank body 1. A scraping device for scraping away residual waste slag from the liquid surface is installed between the two sets of driving devices. An overflow hole 13 is opened on the outer side wall of the galvanizing tank body 1. A sedimentation mechanism is installed on the same side wall as the overflow hole 13. A filtration mechanism connected to the sedimentation mechanism is also provided on the side of the galvanizing tank body 1 near the sedimentation component, filtering the overflowing liquid and returning it to the galvanizing tank body 1. In this embodiment, the overall structure of the galvanizing tank includes the galvanizing tank body 1, the scraping device, the sedimentation mechanism, the filtration mechanism, and some auxiliary structures, aiming to achieve effective treatment of waste slag in the galvanizing tank, including daily overflow slag discharge and emergency scraping and cleaning, and filtering and returning the discharged liquid to maintain the normal operation of the galvanizing tank.

[0023] like Figure 1 , 2As shown, a filter screen 11 is detachably connected inside the galvanizing tank body 1; a drain pipe 12 is installed through the outer wall of the galvanizing tank body 1; the bottom of the interior of the galvanizing tank body 1 is an inclined structure sloping towards the drain pipe 12; in this embodiment, the galvanizing tank body 1 is used to contain the galvanizing liquid; the drain pipe 12 installed through the outer wall is used to discharge the liquid in the tank when needed; the filter screen 11 prevents the galvanized workpiece from touching the bottom, not to intercept some waste residue, but to allow the waste residue that has settled to pass through; the inclined structure at the bottom helps the liquid and waste residue to converge towards the drain pipe 12 under the action of gravity, facilitating drainage and slag removal operations; when drainage is required, the liquid and waste residue in the tank flow along the bottom inclined surface towards the drain pipe 12 under the action of gravity, and are discharged from the galvanizing tank through the drain pipe 12; the filter screen 11 can be disassembled for cleaning or replacement according to the usage to maintain its filtering effect.

[0024] like Figure 1-4 As shown, the driving device includes a slide rail 2, a lead screw 21, a motor 22, a slider 23, a bracket 24, and a support plate 25. Slide rails 2 are bolted to opposite side walls of the galvanizing tank body 1. The lead screw 21 is rotatably connected inside the slide rail 2. The motor 22 is bolted to the outer side wall of the galvanizing tank body 1. One end of the lead screw 21 passes through the side wall of the slide rail 2 and is connected to the output end of the motor 22 via a coupling. The slider 23 is slidably connected inside the slide rail 2. The slider 23 is threaded to the lead screw 21. A bracket 24 is welded to the top of the slider 23. A support plate 25 is bolted between the two brackets 24. The scraping device includes a cylinder 3, a scraper 31, and a liquid level sensor 32. The cylinder 3 is bolted to the top of the support plate 25. The push rod of the cylinder 3 passes through the support plate 25 and is connected to the scraper 31. At least two liquid level sensors 32 are installed on the outer side wall of the scraper 31. The scraper 31 has a rectangular cross-section with concave sides. The liquid level sensor 32 is located on the inner side of the concave surface. In this embodiment, when the motor 22 starts, the output end of the motor 22 drives the lead screw 21 to rotate. When the lead screw 21 rotates, due to the threaded connection between the slider 23 and the lead screw 21 and the fact that the slider 23 is restricted to linear motion by the slide rail 2, the slider 23 moves linearly along the slide rail 2. The two sliders 23 are located on opposite side walls of the galvanizing tank body 1, and their synchronous movement drives the scraping device to move above the galvanizing tank through the top bracket 24 and support plate 25. When it is necessary to scrape off the waste residue on the liquid surface, the liquid level sensor 32 first detects the liquid level height, and then the cylinder 3 adjusts the height of the scraper 31 according to the liquid level height so that the bottom of the scraper 31 just contacts the liquid surface. Then, the drive device drives the scraper 31 to move horizontally above the liquid surface, and the scraper 31 scrapes the residual waste residue on the liquid surface to one side. In an emergency, the liquid surface can be cleaned quickly to ensure the normal use of the galvanizing tank.

[0025] It is worth noting that this driving method can precisely control the position of the scraping device, allowing it to move accurately above the galvanizing tank to the location where the waste residue needs to be scraped off. At the same time, the forward and reverse rotation of the motor 22 can easily realize the reciprocating motion of the scraping device, improving the efficiency and comprehensiveness of waste residue scraping. The special cross-sectional shape of the scraper 31, namely the rectangular structure with concave sides and the liquid level sensor 32 set on the inner side of the concave surface, helps to better fit the liquid surface and improve the scraping effect.

[0026] like Figure 3 As shown, the sedimentation assembly includes a collection hopper 4, a sedimentation pipe 41, and a slag discharge pipe 42. A collection hopper 4 is welded to the side wall of the galvanizing tank body 1, which has an overflow hole 13. One end of a U-shaped sedimentation pipe 41 is welded to the bottom of the collection hopper 4. The bottom of the sedimentation pipe 41 is connected to the slag discharge pipe 42. The other end of the sedimentation pipe 41 is at a lower horizontal height than the overflow hole 13, and the collection hopper 4 is at a higher height than the overflow hole 13. In this embodiment, the sedimentation mechanism utilizes gravity to cause the overflowing liquid containing waste residue to settle... Settling occurs in the settling tube 41; the collecting hopper 4 collects the liquid flowing out of the overflow hole 13 and guides it to the settling tube 41; due to the U-shaped structure of the settling tube 41, the liquid flow rate slows down in the settling tube 41, and the waste residue gradually settles to the bottom of the settling tube 41 under the action of gravity; when the liquid level in the galvanizing tank is higher than the overflow hole 13, the liquid flows into the collecting hopper 4 through the overflow hole 13, and then enters the settling tube 41; in the settling tube 41, the waste residue slowly sinks, while the relatively clear liquid is located at the top of the settling tube 41. The settling mechanism can effectively perform preliminary settling on the overflowing liquid, separating most of the waste residue, reducing the burden on the subsequent filtration mechanism, and improving the overall system's waste residue treatment efficiency;

[0027] like Figure 3As shown, the filtration mechanism includes a filter chamber 5, a water pump 51, an inlet pipe 52, and screens 53; the other end of the sedimentation pipe 41 is connected to the outer wall of the filter chamber 5 and extends into the interior; at least two screens 53 are detachably installed on the inner wall of the filter chamber 5; the water pump 51 is bolted to the bottom of the filter chamber 5; the outlet end of the water pump 51 is connected to one end of the inlet pipe 52; the other end of the inlet pipe 52 extends through the outer wall of the filter chamber 5 into the interior of the galvanizing tank; the mesh size of the screens 53 increases sequentially from top to bottom; in this embodiment, the liquid after sedimentation through the sedimentation pipe 41 enters the filter chamber. 5. First, the liquid passes through the upper layer of smaller mesh screen 53, where larger particles are intercepted. Then, the liquid continues to flow downwards, passing through the lower layer of larger mesh screen 53, where even smaller particles are filtered out. Finally, the water pump 51 starts, pumping the filtered liquid back into the galvanizing bath through the inlet pipe 52. This multi-layered screen structure with progressively increasing mesh size can efficiently filter impurities in the liquid, ensuring high purity of the liquid returning to the galvanizing bath. This helps maintain the quality of the liquid in the galvanizing bath, reduces the impact of impurities on the galvanizing process, and also achieves liquid recycling, saving resources.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The various components mentioned in this utility model are common technologies in the existing field. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A galvanizing bath comprising a galvanizing bath body (1), characterized in that, The opposite side walls of the galvanizing tank body (1) are respectively provided with driving devices, and a scraping device for scraping residual waste on the liquid surface is installed between the two groups of driving devices.

2. A galvanizing bath according to claim 1, characterized in that The inside of the galvanizing tank body (1) is detachably connected with a filter screen (11), and a drain pipe (12) is arranged through the outer side wall of the galvanizing tank body (1).

3. A galvanizing bath according to claim 1, characterized in that The driving device comprises a slide (2), a lead screw (21), a motor (22), a sliding block (23), a support (24), and a support plate (25).

4. A galvanizing bath according to claim 3, characterized in that The scraping device comprises a cylinder (3), a scraper (31), and a liquid level sensor (32).

5. A galvanizing bath according to claim 4, characterized in that The cross section of the scraper (31) is a rectangular structure with concave sides.

6. A galvanizing bath according to claim 1 wherein The precipitation assembly comprises a liquid collecting hopper (4), a precipitation pipe (41), and a residue discharging pipe (42).

7. A galvanizing bath according to claim 6, characterized in that The filtering mechanism comprises a filtering bin (5), a water pump (51), a liquid inlet pipe (52), and a screen (53); the other end of a sedimentation pipe (41) is connected to the outer side wall of the filtering bin (5) and extends to the inside; the inner side wall of the filtering bin (5) is detachably provided with at least two screens (53); the bottom of the filtering bin (5) is provided with the water pump (51) through bolting; the water outlet end of the water pump (51) is connected with one end of the liquid inlet pipe (52); the other end of the liquid inlet pipe (52) extends to the inside of the galvanizing pool through the outer side wall of the filtering bin (5).

8. A galvanizing bath according to claim 7, characterized in that The mesh number of the screens (53) increases from top to bottom.

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