Molten zinc impurity filtering device for hot-dip galvanizing process

Abstract

The utility model relates to the technical field of wastewater treatment of metal products, and particularly discloses a zinc liquid impurity filtering device for a hot-dip galvanizing process, which comprises a wastewater treatment cavity, the bottom of the wastewater treatment cavity is connected with a liquid outlet pipe, and the outer wall of the liquid outlet pipe is connected with two mounting boxes. Springs are arranged in the two mounting boxes correspondingly, one ends of the two springs are connected with the inner walls of the mounting boxes correspondingly, the other ends of the two springs are connected with fixing rods correspondingly, the bottom face of the liquid outlet pipe is connected with a first mounting frame, and the top face of the first mounting frame is connected with two fixing blocks; fixing grooves are formed in one sides of the two fixing blocks, the fixing rods are in sliding connection with the fixing grooves, a filtering plate is arranged above the first mounting frame, the design is simple and convenient to operate, and the filtering efficiency is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology for metal products, specifically a zinc liquid impurity filtration device for hot-dip galvanizing process. Background Technology

[0002] In the hot-dip galvanizing process, the zinc ingots used may contain impurities such as heavy metals like iron, lead, and copper, as well as non-metallic inclusions. These impurities can enter the molten zinc during melting, affecting the quality and performance of the zinc layer. For example, iron impurities can cause defects such as a dull, rough appearance in the zinc layer, reducing its corrosion resistance. During the production process, the molten zinc, constantly exposed to high temperatures, comes into contact with the surrounding air and equipment, generating impurities. For instance, the molten zinc reacts with oxygen in the air to produce zinc oxide; wear and tear on equipment during operation may cause metal particles to fall into the molten zinc.

[0003] According to Chinese Patent No. CN219194620U, a wastewater treatment device for hot-dip galvanizing of wear-resistant and corrosion-resistant metal products includes an inlet and an outlet, a device shell, a wastewater treatment chamber inside the device shell, and a wastewater treatment component installed inside the wastewater treatment chamber. An isolation component and an adsorption component for treating metal impurities are provided at the inlet. The isolation component includes a delivery pipe, a filter plate, and a filter screen. The filter plate is installed inside the delivery pipe and has filter holes. The adsorption component is installed on the isolation component and covers the filter holes. The adsorption component is used to adsorb metal impurities. An elastic buffer sheet for reducing the impact force of wastewater is fixed inside the delivery pipe.

[0004] In the above scheme, the filter plate is installed inside the infusion tube, and filter holes are set on the filter plate. However, it still has the following disadvantages: when the filter plate is replaced or cleaned, the entire device needs to be disassembled, which is cumbersome and time-consuming, affecting the efficiency of continuous filtration. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a zinc bath impurity filtration device for hot-dip galvanizing processes, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A zinc bath impurity filtration device for hot-dip galvanizing includes a wastewater treatment chamber. A discharge pipe is connected to the bottom of the wastewater treatment chamber. Two mounting boxes are connected to the outer wall of the discharge pipe. Springs are installed inside each of the two mounting boxes. One end of each spring is connected to the inner wall of the mounting box, and the other end of each spring is connected to a fixing rod. A first mounting frame is connected to the bottom surface of the discharge pipe. Two fixing blocks are connected to the top surface of the first mounting frame. A fixing groove is formed on one side of each fixing block. The fixing rod is slidably connected to the fixing groove. A filter plate is installed above the first mounting frame.

[0008] Preferably, the first mounting bracket has a fixing hole, and a fixing bolt is provided inside the fixing hole. One end of the fixing bolt passes through the filter plate and is threadedly connected to the fixing hole.

[0009] Preferably, the top surface of the wastewater treatment chamber is connected to an inlet pipe, and the top surface of the inlet pipe is provided with a plurality of mounting slots. A second mounting frame is connected inside the mounting slots, and a plurality of magnetic rods are connected to the second mounting frame.

[0010] Preferably, a scraper is provided inside the wastewater treatment chamber, and one side of the scraper is in contact with the inner wall of the wastewater treatment chamber.

[0011] Preferably, a drive motor is provided on the top surface of the wastewater treatment chamber, and the output end of the drive motor is connected to the top surface of the scraper.

[0012] A solenoid valve is installed at the connection between the wastewater treatment chamber and the outlet pipe, and the solenoid valve is located above the filter plate.

[0013] Compared with existing technologies, the advantages of this invention are as follows: When replacing or cleaning the filter plate, the operator first closes the outlet pipe using a solenoid valve, and then pushes the two fixing rods. The movement of the fixing rods compresses the springs, causing them to disengage from the fixing slots, thus allowing the first mounting bracket to be removed. Next, the fixing bolts are removed to take off the filter plate, completing the disassembly process. When installing the filter plate, the filter plate is first placed on the first mounting bracket and secured using fixing bolts and fixing holes. Then, the two fixing rods are pushed, and the fixing block on the first mounting bracket is inserted into the mounting box. After releasing the fixing rods, the springs, due to their own elasticity, push the fixing rods out, causing them to re-engage with the fixing slots, thereby achieving quick installation of the filter plate. This design is simple to operate and effectively improves filtration efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram showing the disassembled filter plate of this utility model;

[0016] Figure 3 This is a sectional view of the mounting box of this utility model;

[0017] Figure 4 This is a schematic diagram of the second mounting bracket of this utility model disassembled;

[0018] Figure 5 This is a cross-sectional view of the wastewater treatment chamber of this utility model.

[0019] In the diagram: 1. Wastewater treatment chamber; 2. Discharge pipe; 3. Mounting box; 4. Spring; 5. Fixing rod; 6. First mounting bracket; 7. Fixing block; 8. Fixing groove; 9. Filter plate; 10. Fixing hole; 11. Fixing bolt; 12. Inlet pipe; 13. Mounting groove; 14. Second mounting bracket; 15. Magnetic rod; 16. Scraper; 17. Drive motor; 18. Solenoid valve. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-5 This utility model provides a technical solution: a zinc liquid impurity filtration device for hot-dip galvanizing process, including a wastewater treatment chamber 1, an outlet pipe 2 connected to the bottom of the wastewater treatment chamber 1, two mounting boxes 3 connected to the outer wall of the outlet pipe 2, springs 4 respectively installed inside the two mounting boxes 3, one end of the two springs 4 respectively connected to the inner wall of the mounting box 3, and the other end of the two springs 4 respectively connected to a fixing rod 5, a first mounting frame 6 connected to the bottom surface of the outlet pipe 2, two fixing blocks 7 connected to the top surface of the first mounting frame 6, a fixing groove 8 opened on one side of the two fixing blocks 7, the fixing rod 5 slidably connected to the fixing groove 8, and a filter plate 9 installed above the first mounting frame 6.

[0022] More specifically, by pushing the fixing rod 5, the fixing rod 5 no longer contacts the fixing groove 8, which can realize the quick disassembly of the first mounting bracket 6. Pushing the fixing rod 5 again, the fixing block 7 is inserted into the mounting box 3. Releasing the fixing rod 5, the fixing rod 5 will be pushed out by the elastic force of the spring 4, so that the fixing rod 5 contacts the fixing groove 8 again, thereby realizing the quick installation of the first mounting bracket 6.

[0023] In this utility model, a fixing hole 10 is provided on the first mounting bracket 6, and a fixing bolt 11 is provided inside the fixing hole 10. One end of the fixing bolt 11 passes through the filter plate 9 and is threadedly connected to the fixing hole 10.

[0024] More specifically, the fixing bolt 11 and the fixing hole 10 can fix the filter plate 9 on the first mounting bracket 6.

[0025] In this utility model, the top surface of the wastewater treatment chamber 1 is connected to an inlet pipe 12, and the top surface of the inlet pipe 12 is provided with a plurality of mounting grooves 13. The mounting grooves 13 are connected to a second mounting frame 14, and a plurality of magnetic rods 15 are connected to the second mounting frame 14.

[0026] More specifically, the magnetic rod 15 inside the liquid inlet tube 12 can adsorb some metallic impurities.

[0027] In this invention, a scraper 16 is provided inside the wastewater treatment chamber 1, and one side of the scraper 16 is in contact with the inner wall of the wastewater treatment chamber 1.

[0028] More specifically, the scraper 16 cleans the inside of the wastewater treatment chamber 1.

[0029] In this invention, a drive motor 17 is provided on the top surface of the wastewater treatment chamber 1, and the output end of the drive motor 17 is connected to the top surface of the scraper 16.

[0030] More specifically, the drive electronics power the operation of the scraper 16.

[0031] In this utility model, a solenoid valve 18 is provided at the pipe connection between the wastewater treatment chamber 1 and the outlet pipe 2, and the solenoid valve 18 is located above the filter plate 9.

[0032] More specifically, the solenoid valve 18 is used to control the outlet pipe 2, controlling whether it is opened or closed when the filter plate 9 is replaced or cleaned.

[0033] Working principle: When replacing or cleaning filter plate 9, the operator first closes the outlet pipe 2 via solenoid valve 18, and then pushes the two fixing rods 5. The movement of the fixing rods 5 compresses the spring 4, causing it to no longer contact the fixing groove 8, thus allowing the first mounting bracket 6 to be removed. Next, the fixing bolts 11 are removed to take off the filter plate 9, completing the disassembly process. When installing filter plate 9, first place the filter plate 9 on the first mounting bracket 6 and fix it with fixing bolts 11 and fixing holes 10. Then, push the two fixing rods 5, and insert the fixing block 7 on the first mounting bracket 6 into the mounting box 3. After releasing the fixing rods 5, the spring 4 will push the fixing rods 5 out due to its own elasticity, causing the fixing rods 5 to re-contact the fixing groove 8, thus achieving quick installation of filter plate 9. The outlet pipe 2 is then opened via solenoid valve 18 to continue waste liquid filtration.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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.

[0035] 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 zinc bath impurity filtration device for hot-dip galvanizing process, comprising a wastewater treatment chamber (1), wherein the bottom of the wastewater treatment chamber (1) is connected to an outlet pipe (2), characterized in that: Two mounting boxes (3) are connected to the outer wall of the liquid outlet pipe (2). Springs (4) are respectively installed inside the two mounting boxes (3). One end of each spring (4) is connected to the inner wall of the mounting box (3). The other end of each spring (4) is connected to a fixing rod (5). A first mounting bracket (6) is connected to the bottom surface of the liquid outlet pipe (2). Two fixing blocks (7) are connected to the top surface of the first mounting bracket (6). A fixing groove (8) is opened on one side of each fixing block (7). The fixing rod (5) is slidably connected to the fixing groove (8). A filter plate (9) is installed above the first mounting bracket (6).

2. The zinc bath impurity filtration device for hot-dip galvanizing process according to claim 1, characterized in that: The first mounting bracket (6) has a fixing hole (10), and a fixing bolt (11) is provided inside the fixing hole (10). One end of the fixing bolt (11) passes through the filter plate (9) and is threadedly connected to the fixing hole (10).

3. A zinc bath impurity filtration device for hot-dip galvanizing process according to claim 1, characterized in that: The top surface of the wastewater treatment chamber (1) is connected to an inlet pipe (12), and the top surface of the inlet pipe (12) is provided with several mounting slots (13). The mounting slots (13) are connected to a second mounting frame (14), and several magnetic rods (15) are connected to the second mounting frame (14).

4. A zinc bath impurity filtration device for hot-dip galvanizing process according to claim 1, characterized in that: The wastewater treatment chamber (1) is equipped with a scraper (16), one side of which is in contact with the inner wall of the wastewater treatment chamber (1).

5. A zinc bath impurity filtration device for hot-dip galvanizing process according to claim 4, characterized in that: The top surface of the wastewater treatment chamber (1) is provided with a drive motor (17), and the output end of the drive motor (17) is connected to the top surface of the scraper (16).

6. A zinc bath impurity filtration device for hot-dip galvanizing process according to claim 1, characterized in that: A solenoid valve (18) is provided at the connection between the wastewater treatment chamber (1) and the outlet pipe (2), and the solenoid valve (18) is located above the filter plate (9).

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