Full-automatic iron removing equipment for hot-dip galvanizing

Abstract

This invention solves the problem of disrupted galvanizing continuity when replacing filters used to remove iron impurities from galvanizing solutions. It relates to the field of iron removal equipment technology, and particularly to a fully automatic iron removal device for hot-dip galvanizing. The device includes a plating tank frame with a replacement tank frame on one side. A partition plate is installed in the middle of the replacement tank frame. Two filter components are located inside the replacement tank frame, positioned on the front and rear sides of the partition plate, respectively. A storage plate is installed between the replacement tank frame and the plating tank frame. A pump with its input connected to the replacement tank frame and its output connected to the plating tank frame is mounted on the storage plate. Two flow pipes connect the plating tank frame and the replacement tank frame. This invention effectively separates iron filings and impurities from the galvanizing solution within the plating tank frame, and allows for uninterrupted flow of the galvanizing solution when replacing or cleaning the filter components.

Description

Technical Field

[0001] This utility model relates to the field of iron removal equipment technology, specifically a fully automatic iron removal equipment for hot-dip galvanizing. Background Technology

[0002] Hot-dip galvanizing is a thermal processing technique that involves immersing a base material such as steel into molten zinc, allowing a zinc layer to adhere to the substrate surface and thus creating a protective coating. It is widely used in various fields, primarily for protection and decoration. Corrosion protection is the most important function of hot-dip galvanizing. In humid air, steel is prone to rust and corrosion, while zinc forms a dense zinc oxide film in the air. This film prevents further contact between oxygen and moisture and the steel, effectively slowing down the corrosion rate. During the hot-dip galvanizing process, iron inevitably mixes into the zinc bath. Iron impurities in the galvanized layer can cause defects such as color difference, pitting, and peeling, affecting the appearance quality of the galvanized layer. Removing iron can reduce these problems.

[0003] One common method is to add a circulation system connected to the galvanizing tank and add a filtration device to the circulation system to filter and remove iron from the galvanizing solution. However, after a certain period of use, the internal pores of the filtration device will be blocked by iron filings and impurities, so it needs to be replaced or cleaned. At this time, the circulation of the entire galvanizing solution needs to be stopped, which will affect the continuity of steel galvanizing. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a fully automatic iron removal device for hot-dip galvanizing, so as to solve the problem of affecting the continuity of steel galvanizing when replacing the filter device for removing iron impurities in the galvanizing solution as mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a fully automatic iron removal device for hot-dip galvanizing, comprising a plating tank frame, a replacement tank frame on one side of the plating tank frame, a partition plate installed in the middle of the replacement tank frame, and two filter components inside the replacement tank frame, with the two filter components located on the front and rear sides of the partition plate respectively.

[0006] A shelf is installed between the replacement tank frame and the plating tank frame. A liquid pump with its input end connected to the replacement tank frame is installed on the shelf, and the output end of the liquid pump is connected to the plating tank frame. Two flow pipes are connected between the plating tank frame and the replacement tank frame, and the two flow pipes correspond one-to-one with two filter components. The bottom wall of the inlet end of the flow pipe is at the same height as the bottom wall of the plating tank frame.

[0007] Preferably, the flow tube consists of a tube head, a tube body, and a solenoid valve installed on the tube body, with the shape of the tube head transitioning from rectangular to circular.

[0008] Preferably, the filter assembly includes a support base frame disposed within the displacement groove frame, and an iron filings filter is fitted onto the support base frame.

[0009] Preferably, the bottom wall of the supporting frame is provided with a central axis groove that communicates with the tube body, and a number of branch grooves that communicate with the central axis groove are also provided on the bottom wall of the supporting frame.

[0010] Preferably, the top of the supporting base frame is equipped with two hangers located on both sides of the iron filings filter, and the top of the two hangers is equipped with a horizontal panel.

[0011] Preferably, a threaded post is installed in the middle of the horizontal panel, and a cross plate is rotatably installed at the bottom of the threaded post, with the two sides of the cross plate respectively engaging with two hangers.

[0012] Preferably, the input end of the pump is higher than the top of the partition plate, and the top surface of the iron filings filter is at the same height as the top of the partition plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model sends the zinc plating liquid at the bottom of the plating tank frame to the replacement tank frame, and uses a pump to draw the zinc plating liquid at the top of the replacement tank frame back into the plating tank frame. This allows the zinc plating liquid to circulate between the two. In addition, the filter assembly effectively intercepts iron filings and impurities in the zinc plating liquid, preventing them from flowing back into the plating tank frame. This achieves the purpose of effectively separating iron filings and impurities in the zinc plating liquid.

[0015] 2. This utility model uses two filter components and two matching flow pipes to replace the iron filings filter without stopping the liquid pump, thereby effectively maintaining the continuous operation of the galvanizing system.

[0016] 3. This utility model can work with the central shaft groove and several branch grooves to disperse the galvanizing liquid entering the bearing bottom frame, so that when the liquid pump is running, the intercepted iron filings are more evenly distributed on the iron filings filter, and there will be no excessive accumulation of iron filings in some areas. This effectively prevents the iron filings filter from affecting the entire filtration process due to local blockage, and also reduces the need for frequent cleaning or replacement of the iron filings filter. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the installation structure of the flow pipe and the replacement groove frame of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the filter assembly of this utility model;

[0020] Figure 4 This is a schematic diagram showing the distribution of the central shaft groove and the branch grooves of this utility model.

[0021] In the diagram: 1. Plating tank frame; 2. Replacement tank frame; 201. Shelf plate; 202. Liquid pump; 203. Flow pipe; 2031. Pipe head; 2032. Pipe body; 2033. Solenoid valve; 3. Divider plate; 4. Filter assembly; 401. Supporting base frame; 4011. Central shaft groove; 4012. Branch groove; 402. Iron filings filter; 403. Hanger rod; 4031. Horizontal panel; 4032. Threaded column; 4033. Cross plate. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1-4 This utility model proposes a fully automatic iron removal device for hot-dip galvanizing, including a galvanizing tank frame 1. The galvanizing tank frame 1 is mainly used for galvanizing steel strips, which is existing technology, so the galvanizing process of the steel strips will not be described in detail here. A replacement tank frame 2 is provided on one side of the galvanizing tank frame 1. The replacement tank frame 2 is interconnected with the galvanizing tank frame 1, facilitating the flow of galvanizing liquid from the galvanizing tank frame 1 to the replacement tank frame 2. The replacement tank frame 2 is equipped with two filter components 4. A partition plate 3 is installed in the middle of the replacement tank frame 2, dividing the lower space of the replacement tank frame 2 into two equal parts, which are used to place the two filter components 4 respectively, ensuring that the two filter components 4 do not interfere with each other. The galvanizing liquid flowing into the replacement tank frame 2 can be filtered by the filter components 4, intercepting iron particle impurities, reducing iron filings and impurities in the galvanizing liquid, ensuring the cleanliness of the galvanizing liquid, and improving the subsequent galvanizing quality.

[0024] Specifically, the filter assembly 4 includes a supporting base frame 401 located within the displacement tank frame 2, with an iron filings filter 402 embedded in the supporting base frame 401. A placement plate 201 is installed between the displacement tank frame 2 and the plating tank frame 1. A liquid pump 202, with its input end connected to the displacement tank frame 2 and its output end connected to the plating tank frame 1, is installed on the placement plate 201. Two flow pipes 203 are connected between the plating tank frame 1 and the displacement tank frame 2, and each of the two flow pipes 203 corresponds one-to-one with one of the two filter assemblies 4. The zinc plating solution circulates between the plating tank frame 1 and the displacement tank frame 2, relying on the pumping force generated by the operation of the liquid pump 202. During operation, the pump 202 draws galvanizing solution from the upper layer of the replacement tank frame 2 at its input end and introduces it into the upper layer of the galvanizing solution in the plating tank frame 1. Any missing galvanizing solution inside the replacement tank frame 2 is replenished by the galvanizing solution at the bottom of the plating tank frame 1 flowing through the flow pipe 203. When the galvanizing solution at the bottom of the replacement tank frame 2 is drawn upwards by the pump 202, it passes through the iron filings filter 402 in the filter assembly 4, where iron filings are trapped at the bottom, thus effectively separating iron filings from the galvanizing solution.

[0025] In addition, the bottom wall of the inlet end of the flow pipe 203 is at the same height as the bottom wall of the plating tank frame 1, so that the iron filings deposited at the bottom of the plating tank frame 1 can flow with the zinc liquid to the bottom of the replacement tank frame 2. The flow pipe 203 consists of a pipe head portion 2031, a pipe body portion 2032, and a solenoid valve 2033 installed on the pipe body portion 2032. The shape of the pipe head portion 2031 transitions from rectangular to circular. The two sets of flow pipes 203 are used alternately. When the iron filings filter 402 in one of the filter components 4 needs to be replaced, the solenoid valve 2033 corresponding to the filter component 4 is closed to cut off the pipeline connecting the plating tank frame 1 and the filter component 4, and the solenoid valve 2033 on the other flow pipe 203 is opened to keep the pipeline connecting the plating tank frame 1 and the other filter component 4 clear. Therefore, by using two filter components 4 and two matching flow pipes 203 alternately, the iron filings filter 402 can be replaced without stopping the operation of the liquid pump 202, thereby effectively maintaining the continuous operation of the galvanizing system.

[0026] like Figure 1 , Figures 3-4As shown, the bottom wall of the supporting frame 401 has a central groove 4011 that communicates with the pipe body 2032. Several branch grooves 4012 that communicate with the central groove 4011 are also provided on the bottom wall of the supporting frame 401. The zinc plating liquid introduced into the lower region of the filter assembly 4 via the flow pipe 203 first enters the central groove 4011 inside the supporting frame 401, and then disperses in the branch grooves 4012. Therefore, when the pump 202 is running to extract the zinc plating liquid from the replacement tank frame 2, the zinc plating liquid at the bottom of the filter assembly 4 can flow upwards in a relatively dispersed manner along the various regions of the lower layer of the iron filings filter 402, preventing it from concentrating in one place. This helps the intercepted iron filings to be distributed more evenly on the iron filings filter 402, reducing the likelihood of excessive local accumulation of iron filings.

[0027] Specifically, two hangers 403 are installed on the top of the supporting base frame 401, located on both sides of the scrap filter 402. A horizontal panel 4031 is installed on the top of the two hangers 403. The combined use of the hangers 403 and the horizontal panel 4031 facilitates the upward pulling of the supporting base frame 401 and the scrap filter 402 from the replacement slot frame 2 for subsequent replacement. Furthermore, the height of the hangers 403 is greater than the height of the scrap filter 402 to avoid affecting the subsequent separation of the scrap filter 402 from the supporting base frame 401. A threaded post 4032 is installed in the middle of the horizontal panel 4031, and a cross plate 4033 is rotatably installed at the bottom of the threaded post 4032, with both sides of the cross plate 4033 engaging with the two hangers 403. Rotating the threaded column 4032 downwards or upwards along the horizontal panel 4031 can adjust the distance between the cross plate 4033 and the iron filings filter 402. When the bottom surface of the cross plate 4033 is in contact with the top surface of the iron filings filter 402, it can effectively maintain the stability of the combination between it and the supporting bottom frame 401.

[0028] In addition, the outer layer of the iron filings filter 402 is a fine-pore sponge layer with a thickness greater than the diameter of the hanger 403. It can shrink when squeezed, so it does not affect the separation of the entire iron filings filter 402 from the supporting bottom frame 401 along the two hangers 403.

[0029] like Figure 1 As shown, the height of the input end of the pump 202 is higher than the top of the partition plate 3, and the top surface of the iron filings filter 402 is at the same height as the top of the partition plate 3, thereby ensuring that the zinc plating liquid extracted is the part that has completely passed through the iron filings filter 402, and the zinc plating liquid passing through the iron filings filter 402 from bottom to top in the space on both sides of the partition plate 3 can be extracted by a single inlet of the input end of the pump 202.

[0030] It should be noted that the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fully automatic iron removal device for hot-dip galvanizing, comprising a galvanizing tank frame (1), characterized in that: The plating tank frame (1) has a replacement tank frame (2) on one side. A partition plate (3) is installed in the middle of the replacement tank frame (2). Two filter components (4) are provided inside the replacement tank frame (2), and the two filter components (4) are located on the front and rear sides of the partition plate (3) respectively. A shelf (201) is installed between the replacement tank frame (2) and the plating tank frame (1). A pump (202) with its input end connected to the replacement tank frame (2) is installed on the shelf (201), and the output end of the pump (202) is connected to the plating tank frame (1). Two flow pipes (203) are connected between the plating tank frame (1) and the replacement tank frame (2), and the two flow pipes (203) correspond one-to-one with the two filter components (4). The bottom wall of the inlet end of the flow pipe (203) is at the same height as the bottom wall of the plating tank frame (1).

2. The fully automatic iron removal equipment for hot-dip galvanizing according to claim 1, characterized in that: The flow tube (203) consists of a tube head (2031), a tube body (2032), and a solenoid valve (2033) installed on the tube body (2032). The shape of the tube head (2031) transitions from rectangular to circular.

3. The fully automatic iron removal equipment for hot-dip galvanizing according to claim 1, characterized in that: The filter assembly (4) includes a support base frame (401) disposed in the replacement slot frame (2), and an iron filings filter (402) is fitted on the support base frame (401).

4. The fully automatic iron removal equipment for hot-dip galvanizing according to claim 3, characterized in that: The bottom wall of the supporting base frame (401) is provided with a central axis groove (4011) that communicates with the tube body (2032), and a number of branch grooves (4012) that communicate with the central axis groove (4011) are also provided on the bottom wall of the supporting base frame (401).

5. The fully automatic iron removal equipment for hot-dip galvanizing according to claim 3, characterized in that: The top of the supporting base frame (401) is equipped with two hangers (403) located on both sides of the iron filings filter (402), and the top of the two hangers (403) is equipped with a horizontal panel (4031).

6. The fully automatic iron removal equipment for hot-dip galvanizing according to claim 5, characterized in that: A threaded column (4032) is installed in the middle of the horizontal panel (4031), and a cross plate (4033) is rotatably installed at the bottom of the threaded column (4032), with the two sides of the cross plate (4033) respectively engaging with two hangers (403).

7. The fully automatic iron removal equipment for hot-dip galvanizing according to claim 1, characterized in that: The input end of the liquid pump (202) is higher than the top of the partition plate (3), and the top surface of the iron filings filter (402) is at the same height as the top of the partition plate (3).

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