A pickling tank circulating filtering mechanism with waste liquid recovery function

Abstract

This utility model relates to the field of pickling tank waste liquid filtration, specifically to a pickling tank circulating filtration mechanism with waste liquid recovery function. It includes a filter frame, a main body for circulating and filtering pickling tank waste liquid, a filter tank fixedly installed inside the filter frame for preliminary filtration of the pickling tank waste liquid, and a tank cover fixedly installed on top of the filter tank. A centrifugal motor is fixedly installed at the bottom of the filter tank, and a centrifugal filter cartridge is fixedly installed at the output end of the centrifugal motor. This utility model includes a filter tank, a centrifugal motor, a centrifugal filter cartridge, a recovery tank, a waste liquid sedimentation tank, a triple funnel filter screen, a magnetization box, and an electromagnetic coil. When using this pickling tank circulating filtration mechanism, the pickling tank waste liquid first enters the centrifugal filter cartridge of the filter tank. Driven by the centrifugal motor, the centrifugal filter cartridge filters the pickling tank waste liquid using the centrifugal force generated by its high-speed rotation. The filtered waste liquid is extracted from the outside of the centrifugal filter cartridge and then input into the recovery tank.

Description

Technical Field

[0001] This utility model relates to the field of pickling tank waste liquid filtration, specifically to a pickling tank circulation filtration mechanism with waste liquid recovery function. Background Technology

[0002] Pickling tank waste liquid filtration refers to the purification treatment of acidic waste liquid generated during metal surface treatment to remove suspended metal oxides such as iron oxide scale, grease, heavy metal ions and other impurities, so as to meet environmental emission standards or resource recycling requirements. The pickling tank circulation filtration mechanism is a system that integrates filtration, circulation and waste liquid recycling functions. By continuously filtering impurities in the pickling liquid, it maintains its cleanliness, while realizing the resource utilization of waste liquid and reducing the consumption of fresh acid liquid and waste liquid discharge.

[0003] The existing pickling tank circulation filtration system lacks a waste liquid recovery function, which leads to the direct discharge of waste liquid, polluting water bodies and damaging the ecology. Moreover, the unrecovered acid liquid needs to be replenished frequently, increasing operating costs. In the long run, additional facilities such as neutralization tanks and sludge drying plants are required, and the waste liquid treatment costs are high.

[0004] Therefore, it is necessary to invent a pickling tank circulation filtration mechanism with waste liquid recovery function to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a pickling tank circulating filtration mechanism with waste liquid recovery function. This mechanism, through a filter tank, centrifugal motor, centrifugal filter cartridge, recovery tank, waste liquid sedimentation tank, triple funnel filter screen, magnetization box, and electromagnetic coil, achieves waste liquid recovery. This design can quickly separate large particulate impurities in the pickling tank waste liquid, while the triple funnel filter screen filters small particles step-by-step, ensuring liquid clarity and reducing the burden of subsequent processing. Magnetization treatment promotes the coagulation and sedimentation of suspended solids, improving sedimentation efficiency, and also enhances microbial activity, accelerating the degradation of organic matter. The treated pickling liquid can be reused in the pickling tank, reducing raw material costs. After multi-stage treatment, the waste liquid has significantly reduced heavy metals and acidity, meeting the requirements for waste liquid recycling. This addresses the problem in existing pickling tank circulating filtration mechanisms that lack waste liquid recovery function, leading to direct discharge of waste liquid, polluting water bodies, damaging the ecosystem, and requiring frequent replenishment of unrecovered acid, increasing operating costs. Furthermore, long-term use necessitates the construction of additional facilities such as neutralization tanks and sludge drying plants, resulting in high waste liquid treatment costs.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pickling tank circulation filtration mechanism with waste liquid recovery function, including a filter frame and a main body for circulating and filtering waste liquid from the pickling tank;

[0007] A filter tank is fixedly installed inside the filter frame for preliminary filtration of pickling tank waste liquid. A tank cover is fixedly installed on the top of the filter tank, and a centrifugal motor is fixedly installed at the bottom of the filter tank. A centrifugal filter cartridge is fixedly installed at the output end of the centrifugal motor.

[0008] The recovery tank is fixedly installed inside the filter frame for secondary treatment of the filtered pickling tank waste liquid. A waste liquid sedimentation tank is fixedly installed at the bottom of the filter frame. A fixing bolt passes through the external thread of the recovery tank. A triple funnel filter screen is connected to the front end of the fixing bolt. A magnetization box is fixedly installed inside the recovery tank. An electromagnetic ring is sleeved on the outside of the magnetization box. A second electromagnetic control valve is fixedly installed at the bottom of the recovery tank.

[0009] Preferably, the filter frame is fixedly installed with docking plates on both outer sides, and the bottom of each docking plate is threaded with docking bolts.

[0010] Preferably, a first electromagnetic control valve is fixedly installed above the can lid, and a receiving pipe is fixedly installed on the top of the first electromagnetic control valve.

[0011] Preferably, the filter tank has a sliding groove inside, a sliding plate is slidably connected inside the sliding groove, and the outside of the sliding plate is fixedly connected to the outside of the centrifugal filter cartridge.

[0012] Preferably, a first feed pump is fixedly installed above the recycling tank, and a feed pipe is fixedly installed at the output end of the first feed pump. The other end of the feed pipe is fixedly connected to the outside of the filter tank.

[0013] Preferably, a second feed pump is fixedly installed on the outside of the waste liquid sedimentation tank, a recovery pipe is fixedly installed on the output end of the second feed pump, and a pipe mounting buckle is fixedly installed on the outside of the recovery pipe.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0015] This utility model includes a filter tank, a centrifugal motor, a centrifugal filter cartridge, a recovery tank, a waste liquid sedimentation tank, a triple funnel filter screen, a magnetization box, and an electromagnetic coil. When using this pickling tank circulation filtration mechanism, the pickling tank waste liquid first enters the centrifugal filter cartridge in the filter tank. Driven by the centrifugal motor, the centrifugal filter cartridge filters the pickling tank waste liquid using the centrifugal force generated by its high-speed rotation. The filtered waste liquid is then drawn out from the outside of the centrifugal filter cartridge and fed into the recovery tank. Inside the recovery tank, it is filtered layer by layer by the triple funnel filter screen, then enters the magnetization box where it is magnetized by the electromagnetic coil, and finally... The waste liquid is placed in a sedimentation tank for settling, thus enabling the pickling tank's circulating filtration mechanism to recover waste liquid. This design can quickly separate large particles of impurities from the pickling tank waste liquid. A triple funnel filter screen filters small particles in stages to ensure liquid clarity and reduce the burden of subsequent processing. Magnetization treatment promotes the coagulation and sedimentation of suspended solids, improving sedimentation efficiency. At the same time, it can also enhance microbial activity and accelerate the degradation of organic matter. The pickling liquid treated in this way can be reused in the pickling tank, reducing raw material costs. After multi-stage treatment, the heavy metals and acidity of the waste liquid are significantly reduced, meeting the requirements for waste liquid recycling. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[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 filter tank structure of this utility model;

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

[0020] Figure 4 This is a schematic diagram of the waste liquid filter tank structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the triple funnel filter structure of this utility model;

[0022] Figure 6 This is a schematic diagram of the recycling pipeline structure of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Filter frame; 2. Connecting plate; 3. Connecting bolts; 4. Filter tank; 5. Tank cover; 6. First solenoid control valve; 7. Connecting pipe; 8. Centrifugal motor; 9. Centrifugal filter cartridge; 10. Sliding groove; 11. Sliding plate; 12. Recovery tank; 13. Waste liquid sedimentation tank; 14. First feed pump; 15. Feed pipe; 16. Fixing bolts; 17. Triple funnel filter screen; 18. Magnetized box; 19. Electromagnetic coil; 20. Second solenoid control valve; 21. Second feed pump; 22. Recovery pipe; 23. Pipe mounting buckle. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] This utility model provides, for example Figure 1-6 The pickling tank circulation filtration mechanism shown includes a filter frame 1, which is the main body for circulating and filtering pickling tank waste liquid.

[0027] The filter tank 4 is fixedly installed inside the filter frame 1 for preliminary filtration of pickling tank waste liquid. The top of the filter tank 4 is fixedly installed with a tank cover 5, the bottom of the filter tank 4 is fixedly installed with a centrifugal motor 8, and the output end of the centrifugal motor 8 is fixedly installed with a centrifugal filter cartridge 9.

[0028] The recovery tank 12 is fixedly installed inside the filter frame 1 for secondary treatment of the filtered pickling tank waste liquid. A waste liquid sedimentation tank 13 is fixedly installed at the bottom of the filter frame 1. A fixing bolt 16 is threaded through the external surface of the recovery tank 12. A triple funnel filter screen 17 is threaded at the front end of the fixing bolt 16. A magnetization box 18 is fixedly installed inside the recovery tank 12. An electromagnetic coil 19 is sleeved on the outside of the magnetization box 18. A second electromagnetic control valve 20 is fixedly installed at the bottom of the recovery tank 12. The filtered waste liquid is drawn out from outside the centrifugal filter cartridge 9 and then input into the recovery tank 12. Inside the recovery tank 12, it is filtered by falling layer by layer through the triple funnel filter screen 17, and then enters the magnetization box 18 to be magnetized by the electromagnetic coil 19. Finally, it enters the waste liquid sedimentation tank 13 for sedimentation. In this way, the pickling tank circulation filtration mechanism has a waste liquid recovery function.

[0029] like Figure 1 , Figure 2 and Figure 3As shown, docking plates 2 are fixedly installed on both sides of the external side of the filter frame 1. The bottom of the docking plates 2 is threaded with docking bolts 3. The docking plates 2 and docking bolts 3 are used to assist the acid pickling tank circulation filter mechanism in docking installation at the bottom of the acid pickling tank. A first electromagnetic control valve 6 is fixedly installed on the top of the tank cover 5. A receiving pipe 7 is fixedly installed on the top of the first electromagnetic control valve 6. The first electromagnetic control valve 6 and the receiving pipe 7 can be connected to the bottom of the acid pickling tank for recycling the waste liquid after the acid pickling tank is used. A sliding groove 10 is opened inside the filter tank 4. A sliding plate 11 is slidably connected inside the sliding groove 10. The outside of the sliding plate 11 is fixedly connected to the outside of the centrifugal filter cartridge 9. The sliding plate 11 and the sliding groove 10 are used to limit the rotation of the centrifugal filter cartridge 9 inside, so that the centrifugal filter cartridge 9 can rotate at high speed within a specified range.

[0030] like Figure 1 , Figure 4 and Figure 5 As shown, a first feed pump 14 is fixedly installed above the recovery tank 12. A feed pipe 15 is fixedly installed at the output end of the first feed pump 14. The other end of the feed pipe 15 is fixedly connected to the outside of the filter tank 4. The first feed pump 14 is used to extract the filtered waste liquid and input the waste liquid into the inside of the recovery tank 12 for secondary treatment. A second feed pump 21 is fixedly installed on the outside of the waste liquid sedimentation tank 13. A recovery pipe 22 is fixedly installed at the output end of the second feed pump 21. A pipe mounting buckle 23 is fixedly installed on the outside of the recovery pipe 22. The recovery pipe 22 and the pipe mounting buckle 23 are used for installation and use with the pickling tank. In this way, the pickling liquid after filtration and magnetization can be directly put into the pickling tank for recycling.

[0031] The working principle of this practical system is as follows: First, connect the external power supply. Then, using the connecting plate 2 and connecting bolts 3, the pickling tank circulation filtration mechanism is installed at the bottom of the pickling tank. Next, the first electromagnetic control valve 6 and the receiving pipe 7 can be connected to the bottom of the pickling tank for recycling the waste liquid after use. The waste liquid then enters the centrifugal filter cartridge 9 of the filter tank 4. Driven by the centrifugal motor 8, the centrifugal filter cartridge 9 filters the waste liquid using the centrifugal force generated by its high-speed rotation. Then, the first feed pump 14 is turned on, allowing it to draw the filtered waste liquid outside the centrifugal filter cartridge 9 and input it into the recovery tank 12. The filtered pickling liquid then falls through the triple funnel filter screen 17 in the recovery tank 12 by gravity. Finally, the pickling liquid enters the magnetization box 18 and is magnetized by the electromagnetic coil 19. After magnetization is complete, the second electromagnetic control valve 20 is opened, allowing the treated pickling liquid to enter the waste liquid sedimentation tank 13 for sedimentation. The pickling tank circulation filtration mechanism has a waste liquid recovery function. This design can quickly separate large particulate impurities in the pickling tank waste liquid. The triple funnel filter screen 17 filters small particles in stages to ensure liquid clarity and reduce the burden of subsequent processing. Magnetization treatment promotes the coagulation and sedimentation of suspended solids, improves sedimentation efficiency, and enhances microbial activity, accelerating the degradation of organic matter. The pickling liquid treated in this way can be reused in the pickling tank, reducing raw material costs. Then, the recovery pipe 22 and pipe installation buckle 23 are used for installation and use with the pickling tank. In this way, the pickling liquid after filtration and magnetization can be directly drawn out by the second feed pump 21 and put back into the pickling tank for circulation. Finally, after completing the installation and use of the pickling tank circulation filtration mechanism according to the above operations, turn off the switch of the centrifugal motor 8, and turn off the switches of the first feed pump 14 and the second feed pump 21. If it is not used for a long time, simply disconnect the external power supply. In this way, the use process of the pickling tank circulation filtration mechanism with waste liquid recovery function is completed.

[0032] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A pickling tank circulation filtration mechanism with waste liquid recovery function, characterized in that: include Filter frame (1), the main body for circulating filtration of waste liquid from pickling tank; The filter tank (4) is fixedly installed inside the filter frame (1) for preliminary filtration of pickling tank waste liquid. A tank cover (5) is fixedly installed on the top of the filter tank (4). A centrifugal motor (8) is fixedly installed at the bottom of the filter tank (4). A centrifugal filter cartridge (9) is fixedly installed at the output end of the centrifugal motor (8). The recycling tank (12) is fixedly installed inside the filter frame (1) for secondary treatment of the filtered pickling tank waste liquid. A waste liquid sedimentation tank (13) is fixedly installed at the bottom of the filter frame (1). A fixing bolt (16) is threaded through the external thread of the recycling tank (12). A triple funnel filter screen (17) is threaded at the front end of the fixing bolt (16). A magnetization box (18) is fixedly installed inside the recycling tank (12). An electromagnetic ring (19) is sleeved on the outside of the magnetization box (18). A second electromagnetic control valve (20) is fixedly installed at the bottom of the recycling tank (12).

2. The pickling tank circulating filtration mechanism with waste liquid recovery function according to claim 1, characterized in that: The filter frame (1) has docking plates (2) fixedly installed on both sides of the outside, and the bottom of the docking plates (2) is threaded with docking bolts (3).

3. The pickling tank circulating filtration mechanism with waste liquid recovery function according to claim 1, characterized in that: A first electromagnetic control valve (6) is fixedly installed above the can lid (5), and a receiving pipe (7) is fixedly installed on the top of the first electromagnetic control valve (6).

4. The pickling tank circulating filtration mechanism with waste liquid recovery function according to claim 1, characterized in that: The filter tank (4) has a sliding groove (10) inside, and a sliding plate (11) is slidably connected inside the sliding groove (10). The outside of the sliding plate (11) is fixedly connected to the outside of the centrifugal filter cylinder (9).

5. The pickling tank circulating filtration mechanism with waste liquid recovery function according to claim 1, characterized in that: A first feed pump (14) is fixedly installed above the recycling tank (12), and a feed pipe (15) is fixedly installed at the output end of the first feed pump (14). The other end of the feed pipe (15) is fixedly connected to the outside of the filter tank (4).

6. The pickling tank circulating filtration mechanism with waste liquid recovery function according to claim 1, characterized in that: A second feed pump (21) is fixedly installed on the outside of the waste liquid sedimentation tank (13). A recycling pipe (22) is fixedly installed at the output end of the second feed pump (21). A pipe mounting buckle (23) is fixedly installed on the outside of the recycling pipe (22).

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