Alkali liquor purification device

Abstract

The utility model relates to the field of alkali liquor purification, and discloses an alkali liquor purification device which comprises a circulation tank, an alkali washing tank, a magnetic filter and a plurality of conveying pipelines, a second partition plate is fixedly arranged at the center of the bottom end face of the inner wall of the circulation tank, and a first partition plate is fixedly arranged at the center of the upper end face of the inner wall of the circulation tank. A fixing box is fixedly arranged at the position, close to the upper end, of the center of the front end face of the outer wall of the circulating tank, a filter plate is slidably arranged on the inner wall of the fixing box, a fixing mechanism is arranged on one side of the outer wall of the fixing box and comprises two sleeve plates, a U-shaped embedded rod and two third springs, and a first water pump is connected to one side of the circulating tank through a conveying pipeline. One end of the first water pump is connected with the magnetic filter through a conveying pipeline, and the other side of the alkaline washing tank is connected with the second water pump through a conveying pipeline. According to the device, iron powder can be prevented from flowing into other instruments along the gap between the first partition plate and the second partition plate.

Description

Technical Field

[0001] This utility model relates to the field of alkali purification, and in particular to an alkali purification device. Background Technology

[0002] The alkaline solution in the cleaning section circulation system of the cold rolling processing line in the steel plant is used to rinse or assist the brush rollers in cleaning away residual oil and iron left over from the previous process on the surface of the strip steel. However, if the iron powder and oil washed off remain in the alkaline solution, they will still be harmful, so it is necessary to remove them from the alkaline solution or reduce the content of iron powder and oil in the alkaline solution as much as possible.

[0003] A search revealed an existing patent (publication number: CN209952396U) that discloses a system for purifying alkaline solutions. The system includes a circulation tank 3, which is divided into a turbid liquid zone A and a clear liquid zone B by a partition. The iron removal module and oil removal module significantly reduce the iron powder concentration in the alkaline solution, improving the cleaning effect on the strip steel surface and greatly reducing the probability of iron powder entering the annealing furnace, thus significantly improving furnace conditions, preventing nodule formation, and further ensuring the surface quality of the strip steel. It also significantly reduces the oil concentration in the alkaline solution, minimizing the impact of oil on the cleaning effect and improving the cleaning efficiency of the alkaline solution. Furthermore, it effectively preserves the functional components in the alkaline solution, enhancing its effectiveness; it greatly reduces the emission of alkaline solution and COD, significantly reducing the environmental burden; and it greatly reduces frequent active emissions caused by excessive iron powder or oil content, significantly improving the utilization efficiency of the alkaline solution.

[0004] In the process of developing this application, the inventors discovered the following problems with the prior art:

[0005] Alkali solution is exchanged between the turbid liquid zone and the clear liquid zone only through the height difference. When the water flow rate from the alkali washing tank into the circulation tank is too high, the iron powder in the turbid liquid zone will churn and flow into the clear liquid zone, damaging the instruments used to treat the clear liquid zone.

[0006] Therefore, those skilled in the art have provided an alkaline solution purification device to solve the problems mentioned in the background art. Summary of the Invention

[0007] The purpose of this invention is to address the shortcomings of existing technologies by proposing an alkaline purification device that can prevent iron powder from flowing into other instruments through the gap between the first and second partitions.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] An alkaline solution purification device includes a circulation tank, an alkaline washing tank, a magnetic filter, and multiple conveying pipes. A second partition is fixedly installed at the center of the bottom end face of the inner wall of the circulation tank, and a first partition is fixedly installed at the center of the upper end face of the inner wall of the circulation tank. A fixing box is fixedly installed at the upper end of the center of the front end face of the outer wall of the circulation tank. A filter plate is slidably installed on the inner wall of the fixing box. A fixing mechanism is provided on one side of the outer wall of the fixing box. The fixing mechanism includes two sleeve plates, a U-shaped insert rod, and two No. 3 springs.

[0010] A No. 1 water pump is connected to one side of the circulation tank via a conveying pipe. One end of the No. 1 water pump is connected to a magnetic filter via a conveying pipe. A No. 2 water pump is connected to the other side of the alkaline washing tank via a conveying pipe. A primary filter buffer device is connected to the other side of the circulation tank via a conveying pipe. An oil separator is connected to one side of the primary filter buffer device via a conveying pipe. The oil separator is fixedly connected to the circulation tank via a conveying pipe.

[0011] Furthermore, a spring groove is provided at the center of one side of the inner wall of the fixed box, and two No. 3 springs are respectively fixedly installed at the upper and lower ends of one side of the inner wall of the spring groove, and two sleeve plates are respectively fixedly sleeved on the outer wall of the U-shaped insert near both ends.

[0012] Furthermore, one end of each of the two No. 3 springs is fixedly connected to one side of each of the two sleeve plates and is movably sleeved on the outer wall of the U-shaped insert near both ends.

[0013] Furthermore, the magnetic filter is connected to the circulation tank via a conveying pipe, the second water pump is connected to the circulation tank via a conveying pipe, and the alkaline washing tank is fixedly connected to the circulation tank via a conveying pipe.

[0014] Furthermore, slots are provided at both the upper and lower ends of the rear end face of the filter plate, and a No. 1 spring is fixedly installed on the front end face of the inner wall of each of the two slots.

[0015] Furthermore, the first partition and the second partition are slidably disposed inside the two slots respectively.

[0016] Furthermore, the two ends of the U-shaped insert are respectively embedded in the two grooves.

[0017] This utility model has the following beneficial effects:

[0018] This utility model proposes an alkaline solution purification device. Iron powder churning in untreated wastewater on one side of the first and second partitions is blocked by the filter plates inside the circulation tank. At the same time, oil and liquid in the wastewater can be further processed through the filter plates. After the filter plates have been used for a long time, the U-shaped insert rod can be pulled to one side to disengage the two ends of the U-shaped insert rod from the two grooves. At this time, the filter plates will pop out of the fixed box under the action of the first spring, which facilitates the quick replacement of the filter plates. At the same time, it can prevent iron powder from entering the other side of the circulation tank through the gap between the first and second partitions and causing damage to the subsequent processing equipment. Attached Figure Description

[0019] Figure 1 This is an isometric schematic diagram of the circulating tank of this utility model;

[0020] Figure 2 This is a front sectional view of the circulation tank of this utility model;

[0021] Figure 3 This is a front sectional view of the fixing box of this utility model;

[0022] Figure 4 This is an isometric schematic diagram of the filter plate of this utility model;

[0023] Figure 5 This is a schematic diagram of the overall assembly of this utility model.

[0024] Legend:

[0025] 1. Circulating tank; 2. Fixed box; 3. Filter plate; 4. No. 1 partition plate; 5. No. 2 partition plate; 6. Fixing mechanism; 7. Rebound groove; 8. Insert groove; 9. Slot; 10. No. 1 spring; 11. No. 1 water pump; 12. Conveying pipeline; 13. Alkali washing tank; 14. Primary filter buffer device; 15. Oil separation device; 16. No. 2 water pump; 17. Magnetic filter; 601. Sleeve plate; 602. U-shaped insert rod; 603. No. 3 spring. Detailed Implementation

[0026] 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.

[0027] Reference Figures 1 to 5 One embodiment provided by this utility model:

[0028] An alkaline solution purification device includes a circulation tank 1, an alkaline washing tank 13, a magnetic filter 17, and multiple conveying pipes 12. A second partition 5 is fixedly installed at the center of the bottom end face of the inner wall of the circulation tank 1, and a first partition 4 is fixedly installed at the center of the upper end face of the inner wall of the circulation tank 1. A fixing box 2 is fixedly installed at the upper end of the center of the front end face of the outer wall of the circulation tank 1. A filter plate 3 is slidably installed on the inner wall of the fixing box 2, and a fixing mechanism 6 is provided on one side of the outer wall of the fixing box 2.

[0029] A first water pump 11 is connected to one side of the circulation tank 1 via a conveying pipe 12. One end of the first water pump 11 is connected to a magnetic filter 17 via the conveying pipe 12. A second water pump 16 is connected to the other side of the alkaline washing tank 13 via a conveying pipe 12. A primary filter buffer device 14 is connected to the other side of the circulation tank 1 via a conveying pipe 12. An oil separator 15 is connected to one side of the primary filter buffer device 14 via a conveying pipe 12. The oil separator 15 is fixedly connected to the circulation tank 1 via the conveying pipe 12.

[0030] Specifically, the circulation tank 1 is divided into a turbid liquid zone and a clear liquid zone by the first partition 4 and the second partition 5. The filter plate 3, which is slidably installed inside the fixed box 2, can isolate the iron powder churning in the turbid liquid zone and prevent the iron powder from entering the clear liquid zone and affecting the instruments used for subsequent processing. At the same time, the position of the filter plate 3 can be fixed by the fixing mechanism 6, so that the filter plate 3 can be quickly disassembled for cleaning and replacement.

[0031] Reference Figure 1 , Figure 3 The center of one side of the inner wall of the fixed box 2 is provided with a spring groove 7. Two No. 3 springs 603 are respectively fixedly installed at the upper and lower ends of one side of the inner wall of the spring groove 7. Two sleeve plates 601 are respectively fixedly sleeved on the outer wall of the U-shaped insert 602 near both ends.

[0032] The two ends of the U-shaped insert 602 are respectively embedded in the two slots 8.

[0033] Specifically, pulling the U-shaped insert rod 602 to one side can disengage both ends of the U-shaped insert rod 602 from the groove 8. After releasing the U-shaped insert rod 602, under the action of the No. 3 spring 603, the U-shaped insert rod 602 moves to one side and embeds into the two grooves 8, thereby realizing the disassembly and fixation of the filter plate 3.

[0034] Reference Figure 3 One end of each of the two No. 3 springs 603 is fixedly connected to one side of each of the two sleeve plates 601 and is movably sleeved on the outer wall of the U-shaped insert 602 near both ends.

[0035] Specifically, pulling the U-shaped insert 602 causes the two sleeves 601 to compress the two No. 3 springs 603 respectively, thereby putting them in a contracted state.

[0036] Reference Figure 5 The magnetic filter 17 is connected to the circulation tank 1 via a conveying pipe 12 on one side. The second water pump 16 is connected to the circulation tank 1 via a conveying pipe 12. The alkaline washing tank 13 is fixedly connected to the circulation tank 1 via a conveying pipe 12.

[0037] Specifically, the liquid on one side of the second partition 5 is pumped into the magnetic filter 17 by the first water pump 11 to filter and clean the iron powder. The cleaned liquid is discharged into the clear liquid zone on the other side of the second partition 5 and then pumped into the alkaline washing tank 13 by the second water pump 16 for use. The turbid liquid after use is discharged back into the turbid liquid zone on one side of the second partition 5. At the same time, the grease on the surface of the liquid in the circulation tank 1 is processed by the primary filtration and buffer device 14 and then enters the oil separation device 15. The purified liquid is then discharged back into the clear liquid zone, which can achieve the overall circulation effect of the purification device, so that the alkaline liquid can be recycled multiple times and the frequency of alkaline liquid discharge can be reduced.

[0038] Reference Figure 4 The filter plate 3 has slots 9 at both ends of its rear end face, and a No. 1 spring 10 is fixedly installed on the front end face of the inner wall of each of the two slots 9.

[0039] Specifically, when the two ends of the U-shaped insert 602 are disengaged from the two insert grooves 8, the filter plate 3 can be quickly disassembled by the elastic force of the two No. 1 springs 10.

[0040] Reference Figure 3 , Figure 4 The first partition 4 and the second partition 5 are respectively slidably disposed inside the two slots 9.

[0041] Specifically, the filter plate 3 can be fixed between the first partition 4 and the second partition 5 to achieve the filtering effect of iron powder.

[0042] Working principle: When the turbid liquid from the alkaline washing tank 13 flows into the circulation tank 1 at too high a flow rate, the iron powder inside the circulation tank 1 will churn and be carried by the water flow over the second partition 5 to the other side. At this time, the iron powder can be blocked by the filter plate 3 without affecting the passage of grease. When the filter plate 3 has been used for a long time, it can be pulled to one side by the U-shaped insert 602 to disengage it from the two inserts 8. At this time, the filter plate 3 will pop out to the front under the action of the two first springs 10, which can facilitate the quick replacement of the filter plate 3. At the same time, the liquid pumped into the magnetic filter 17 by the first water pump 11 is discharged into the clear liquid zone on one side of the second partition 5 after use. Meanwhile, due to the characteristic of grease floating on the surface of the liquid, the grease can be separately drawn into the primary filtration buffer device 14 for preliminary filtration and then passed into the oil separation device 15 for secondary filtration, thereby filtering out the grease. Then, the lower layer of liquid in the clear liquid zone can be pumped into the alkaline washing tank 13 by the second water pump 16 for reuse, which can reduce the frequency of alkaline liquid discharge.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An alkaline solution purification device, comprising a circulation tank (1), an alkaline washing tank (13), a magnetic filter (17), and multiple conveying pipes (12), characterized in that: A second partition plate (5) is fixedly installed at the center of the bottom end face of the inner wall of the circulation tank (1). A first partition plate (4) is fixedly installed at the center of the upper end face of the inner wall of the circulation tank (1). A fixed box (2) is fixedly installed at the upper end of the center of the front end face of the outer wall of the circulation tank (1). A filter plate (3) is slidably installed on the inner wall of the fixed box (2). A fixing mechanism (6) is installed on one side of the outer wall of the fixed box (2). The fixing mechanism (6) includes two sleeve plates (601), a U-shaped insert rod (602) and two No. 3 springs (603). A first water pump (11) is connected to one side of the circulating tank (1) via a conveying pipe (12). One end of the first water pump (11) is connected to a magnetic filter (17) via a conveying pipe (12). A second water pump (16) is connected to the other side of the alkaline washing tank (13) via a conveying pipe (12). A primary filter buffer device (14) is connected to the other side of the circulating tank (1) via a conveying pipe (12). An oil separator (15) is connected to one side of the primary filter buffer device (14) via a conveying pipe (12). The oil separator (15) is fixedly connected to the circulating tank (1) via a conveying pipe (12).

2. The alkaline solution purification device according to claim 1, characterized in that: A spring groove (7) is provided at the center of one side of the inner wall of the fixed box (2). Two No. 3 springs (603) are fixedly installed at the upper and lower ends of one side of the inner wall of the spring groove (7). Two sleeve plates (601) are fixedly sleeved on the outer wall of the U-shaped insert (602) near both ends.

3. The alkaline solution purification device according to claim 2, characterized in that: One end of each of the two No. 3 springs (603) is fixedly connected to one side of each of the two sleeve plates (601) and is movably sleeved on the outer wall of the U-shaped insert (602) near both ends.

4. The alkaline solution purification device according to claim 1, characterized in that: The magnetic filter (17) is connected to the circulation tank (1) via a conveying pipe (12) on one side. The second water pump (16) is connected to the circulation tank (1) via a conveying pipe (12). The alkaline washing tank (13) is fixedly connected to the circulation tank (1) via a conveying pipe (12).

5. The alkaline solution purification device according to claim 1, characterized in that: The filter plate (3) has slots (9) at both ends of its rear end face, and a No. 1 spring (10) is fixedly installed on the front end face of the inner wall of each of the two slots (9).

6. The alkaline solution purification device according to claim 1, characterized in that: The first partition (4) and the second partition (5) are respectively slidably disposed inside the two slots (9).

7. The alkaline solution purification device according to claim 1, characterized in that: The two ends of the U-shaped insert (602) are respectively embedded in the two slots (8).

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