A filter device

Abstract

The utility model provides a filter equipment relates to solution filtration technical field, including first storage tank, filter jar and second storage tank, the bottom surface of first storage tank is equipped with the connecting pipe, the inside bottom surface of filter jar is equipped with the circulating pipe, the bottom surface of filter jar is equipped with the discharge pipe, the inside of filter jar is equipped with the stirring subassembly, the inside of filter jar is equipped with the mounting seat, the inside of mounting seat is equipped with first internal thread, the inside of mounting seat is equipped with filter core, adopt circulating pump and first valve, circulating pump cooperation first valve can make solution form circulating flow between filter jar and first storage tank, stirring subassembly drives solution continuous stirring simultaneously, avoid filter core place and suspend the concentration of the suspended matter too high and lead to the blockage, and the filter core cleaning is convenient, in addition, movable pipe realizes the threaded connection with filter core through second internal thread and second thread ring, filter core realizes the threaded connection with mounting seat through first thread ring and first internal thread, need not complex tool to realize the quick disassembly of filter core, reduce the operation difficulty.

Description

Technical Field

[0001] This utility model relates to the field of solution filtration technology, and in particular to a filtration device. Background Technology

[0002] In the production process of lithium hexafluorophosphate, before the lithium hexafluorophosphate solution crystallizes in hydrogen fluoride, it must be filtered to remove unreacted lithium fluoride from the solution in order to reduce the content of insoluble matter in the product. Existing filtration devices use barrel filters with filter cartridges installed inside. The solution enters the filter and passes directly through the filter cartridge, making the filter cartridge very easy to clog, prolonging the filtration time, resulting in low production efficiency. Furthermore, the high price of PTFE filter cartridges, which are resistant to hydrogen fluoride corrosion, and the frequent replacement also increase the operating cost.

[0003] Currently available filtration devices suffer from problems such as easy clogging of filter elements, long filtration time, and low production efficiency when filtering hydrogen fluoride solutions produced from lithium hexafluorophosphate before crystallization. Furthermore, the PTFE filter elements, which are resistant to hydrogen fluoride corrosion, are expensive, require frequent replacement, and have high operating costs. Additionally, filter elements used for extended periods need to be disassembled, which is inconvenient and affects their lifespan. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a filtration device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a filtration device, comprising a first storage tank, a filter tank, and a second storage tank. The bottom surface of the first storage tank is provided with a connecting pipe, the inner bottom surface of the filter tank is provided with a circulation pipe, the bottom surface of the filter tank is provided with a discharge pipe, the interior of the filter tank is provided with a stirring assembly, the interior of the filter tank is provided with a mounting base, the interior of the mounting base is provided with a first internal thread, the interior of the mounting base is provided with a filter element, the surface of the filter element is respectively provided with a first threaded ring and a second threaded ring, the top surface of the filter tank is provided with an operation window, the interior of the operation window is provided with a movable tube, the interior of the movable tube is provided with a second internal thread, and the top surface of the movable tube is provided with a movable handle.

[0006] Preferably, the stirring assembly includes a servo motor and a stirring rod, and the stirring rod is provided at the output end of the servo motor.

[0007] Preferably, the end of the connecting pipe is connected to the top surface of the filter tank, and a circulation pump is provided on the surface of the connecting pipe.

[0008] Preferably, the end of the circulation pipe is connected to the top surface of the first storage tank, and the surface of the circulation pipe is provided with a first valve.

[0009] Preferably, the end of the discharge pipe is connected to the top surface of the second storage tank, and the surface of the discharge pipe is provided with a second valve.

[0010] Preferably, the position of the mounting base corresponds to the position of the discharge pipe, and the surface of the filter element is provided with a protective cover, with the first threaded ring and the second threaded ring respectively disposed on the bottom and top surfaces of the protective cover.

[0011] Preferably, the shape of the first internal thread is adapted to the first threaded ring, and the shape of the second internal thread is adapted to the second threaded ring.

[0012] Beneficial effects In this invention, a circulating pump and a first valve are used. The circulating pump, in conjunction with the first valve, allows the solution to circulate between the filter tank and the first storage tank. At the same time, the stirring component continuously stirs the solution, preventing excessive concentration of suspended solids at the filter element from causing blockage, thus extending the effective filtration time of the filter element and improving production efficiency. Furthermore, cleaning solvent is added to the first storage tank, the stirring component is turned on, the first valve is opened, the second valve is closed, and the circulating pump is turned on to introduce the cleaning solvent from the first storage tank into the filter tank. This facilitates filter element cleaning without frequent disassembly, extending the service life of the filter element.

[0013] In this invention, a movable tube and a mounting base are used. The movable tube is threaded to the filter element through a second internal thread and a second threaded ring. The filter element is threaded to the mounting base through a first threaded ring and a first internal thread. During disassembly, the movable tube is aligned with the filter element, inserted, and rotated clockwise. The filter element can be quickly removed from the mounting base by using the clockwise thread locking between the movable tube and the filter element and the clockwise thread unlocking between the filter element and the mounting base. During installation, the movable tube is aligned with the mounting base, rotated counterclockwise, and moved downwards. The filter element is fixed by the counterclockwise unlocking between the movable tube and the filter element and the counterclockwise locking between the filter element and the mounting base. The filter element can be quickly disassembled and assembled without complicated tools, reducing the difficulty of operation. Attached Figure Description

[0014] Figure 1 This is an axonometric view of the present invention; Figure 2 This is a front cross-sectional view of the filter tank of this utility model; Figure 3 The structure for disassembling the filter element of this utility model Figure 1 ; Figure 4 The structure for disassembling the filter element of this utility model Figure 2 ; Figure 5 This is a structural diagram of the filter element of this utility model.

[0015] Legend: 1. First storage tank; 2. Filter tank; 3. Second storage tank; 4. Connecting pipe; 5. Circulation pipe; 6. Discharge pipe; 7. Circulation pump; 8. First valve; 9. Stirring assembly; 901. Servo motor; 902. Stirring rod; 10. Operation window; 11. Mounting base; 12. Filter element; 13. Movable pipe; 14. Movable handle; 15. First internal thread; 16. First threaded ring; 17. Protective cover; 18. Second threaded ring; 19. Second internal thread; 20. Second valve. Detailed Implementation

[0016] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.

[0017] The specific embodiments of this utility model are described below with reference to the accompanying drawings. Specific Implementation Example 1: Reference Figure 1-5A filtration device includes a first storage tank 1, a filter tank 2, and a second storage tank 3. The first storage tank 1 stores the solution before filtration and a cleaning solvent. The first storage tank 1 is provided with an inlet (not shown in the figure) for inputting the solution and cleaning solvent into the first storage tank 1. The inlet is detachably covered. The first storage tank 1 delivers the solution to the filter tank 2 through a connecting pipe 4 and receives the solution returning from the filter tank 2 through a circulation pipe 5, forming a circulating filtration path. During cleaning, the cleaning solvent is stored and delivered to the filter tank 2 to clean the filter element 12. The filter tank 2 serves as the core container for filtration and stirring, and the filter element 12 is installed inside to filter the solution. It is connected to the first storage tank 1 through the circulation pipe 5. To achieve solution circulation, the bottom discharge pipe 6 transports the filtered solution to the second storage tank 3, where the second storage tank 3 stores the filtered solution. It also receives the filtrate output from the filter tank 2 through the discharge pipe 6, completing the solution filtration and collection. The bottom surface of the first storage tank 1 is equipped with a connecting pipe 4, the end of which connects to the top surface of the filter tank 2. A circulation pump 7 is located in the middle of the connecting pipe 4. The inner bottom surface of the filter tank 2 is equipped with a circulation pipe 5, the end of which connects to the top surface of the first storage tank 1. A first valve 8 is installed on the circulation pipe 5. The connecting pipe 4 connects the first storage tank 1 and the filter tank 2, transporting the solution from the first storage tank 1 to the top of the filter tank 2. The circulation pump 7 provides the power for solution circulation. Force drives the solution in the first storage tank 1 to enter the filter tank 2 through the connecting pipe 4. The circulation pipe 5 connects the filter tank 2 and the first storage tank 1 through the return path, returning the solution in the filter tank 2 to the first storage tank 1. The first valve 8 controls the opening and closing of the circulation pipe 5 and the flow rate. It is opened during filtration to allow the solution to circulate between the filter tank 2 and the first storage tank 1. It is opened during cleaning to allow the cleaning solvent to circulate through the circulation pipe 5 to clean the filter element 12. When closed, it cuts off the return path, allowing independent control of the filtration or cleaning process. The bottom surface of the filter tank 2 is provided with a discharge pipe 6, the end of which is connected to the top surface of the second storage tank 3. The surface of the discharge pipe 6 is provided with a second valve 20, and the discharge pipe 6 is connected to the filter element 12. Tank 2 and the second storage tank 3 transport the filtered solution from tank 2 to the second storage tank 3. The second valve 20 controls the opening and closing of the discharge pipe 6. When open, it allows the filtered solution to flow from tank 2 into the second storage tank 3. When closed, it prevents the solution from being discharged. It works in conjunction with the circulation system to complete the filtration or cleaning operation. The filter tank 2 is equipped with a stirring assembly 9, which includes a servo motor 901 and a stirring rod 902. The output end of the servo motor 901 is equipped with the stirring rod 902. The servo motor 901 drives the stirring rod 902 to rotate, keeping the solution in a flowing state, preventing suspended solids from depositing on the surface of the filter element 12, reducing the risk of filter element 12 clogging, and improving filtration efficiency.

[0019] The filter tank 2 has a mounting base 11 inside, which corresponds to the position of the discharge pipe 6. The mounting base 11 has a first internal thread 15 inside, and a filter element 12 inside. The surface of the filter element 12 has a first threaded ring 16 and a second threaded ring 18, respectively. A protective cover 17 is provided on the surface of the filter element 12. The first threaded ring 16 and the second threaded ring 18 are respectively located on the bottom and top surfaces of the protective cover 17. The shape of the first internal thread 15 is adapted to the shape of the first threaded ring 16, and the shape of the second internal thread 19 is adapted to the shape of the second threaded ring 18. The top surface of the filter tank 2... An operation window 10 is provided, and a movable tube 13 is provided inside the operation window 10. The movable tube 13 has a second internal thread 19 inside. The mounting base 11 fixes the position of the filter element 12. The first internal thread 15 inside is threadedly connected to the first threaded ring 16 at the bottom of the filter element 12, fixing the filter element 12 to the bottom of the filter tank 2 and providing stable installation support. The first internal thread 15 and the first threaded ring 16 are threadedly fixed by reversing, and unlocked by rotating forward. The filter element 12 filters impurities in the solution and reduces the content of insoluble matter in the product. The first threaded ring 16 and the second threaded ring 18 on the surface are respectively connected to the mounting base. 11. The movable tube 13 is threaded, enabling quick assembly and disassembly. The protective cover 17 is made of stainless steel wire, protecting the filter element 12. It is fitted over the filter element 12 to protect it and extend its service life. The movable tube 13 assists in the assembly and disassembly of the filter element 12. The internal second thread 19 is threadedly connected to the second threaded ring 18 on the top of the filter element 12. By rotating the movable handle 14, the second internal thread 19 and the second threaded ring 18 are threadedly fixed by rotating forward, and unlocked by rotating backward. During disassembly, rotating the movable tube 13 forward locks the filter element 12 with the thread, while simultaneously unlocking the filter element 12 from the mounting base 11. To quickly remove the filter element 12, during installation, first fix the filter element 12 to the end thread of the movable tube 13, then align it with the mounting base 11 for installation. Reverse the movable tube 13 to unlock the filter element 12 thread, and simultaneously lock the filter element 12 to the mounting base 11 thread to complete the fixation. The top surface of the movable tube 13 is provided with a movable handle 14, and the operation window 10 provides space for the installation and operation of the movable tube 13, making it easy to manually operate the filter element 12 for installation and removal through the movable handle 14. By manually controlling the rotation of the movable tube 13 through the movable handle 14, the filter element 12 can be threadedly connected or unlocked to the mounting base 11, simplifying the installation and removal operation. Specific Implementation Example 2: A filtration device, based on the basic structure in Specific Embodiment 1, further discloses the following: the operation of the filtration device is as follows: when performing filtration, the servo motor 901 of the stirring assembly 9 is turned on, causing the stirring rod 902 to rotate and stir the solution in the filter tank 2. The first valve 8 on the circulation pipe 5 and the second valve 20 on the discharge pipe 6 are opened. The circulation pump 7 on the connecting pipe 4 is started, and the solution in the first storage tank 1 is transported to the top of the filter tank 2 through the connecting pipe 4. After the solution is filtered by the filter element 12, the filtrate flows into the second storage tank 3 through the discharge pipe 6 for storage. At the same time, part of the solution flows back to the first storage tank 1 through the circulation pipe 5, forming a circulating flow. The circulation flow rate is controlled by adjusting the opening of the first valve 8 to avoid the accumulation and blockage of suspended matter at the filter element 12.

[0021] When cleaning the filter element 12, add cleaning solvent to the first storage tank 1, turn on the stirring component 9 to stir the solvent, close the second valve 20, keep the first valve 8 open, start the circulation pump 7, so that the cleaning solvent enters the filter tank 2 through the connecting pipe 4, and after passing through the filter element 12, it flows back to the first storage tank 1 through the circulation pipe 5, thus cleaning the surface impurities of the filter element 12 without disassembling the filter element 12.

[0022] When performing filter element 12 disassembly and assembly, during disassembly, open the operation window 10, insert the movable tube 13 into the top of the filter element 12 through the operation window 10, rotate the movable handle 14 to rotate the movable tube 13 clockwise, and use the clockwise locking of the second internal thread 19 inside the movable tube 13 and the second threaded ring 18 on the top of the filter element 12 to drive the clockwise unlocking of the filter element 12 and the first threaded ring 16 and the first internal thread 15 at the bottom of the mounting base 11, and remove the filter element 12 from the mounting base 11. During assembly, first temporarily fix the filter element 12 and the movable tube 13 with the clockwise thread, align them with the mounting base 11, and then reverse the movable handle 14 to unlock the movable tube 13 and the filter element 12. At the same time, the first threaded ring 16 at the bottom of the filter element 12 and the first internal thread 15 of the mounting base 11 are locked by reversing the rotation, thus completing the fixing of the filter element 12.

[0023] In summary: The system employs a circulation pump 7 and a first valve 8. The circulation pump 7, in conjunction with the first valve 8, allows the solution to circulate between the filter tank 2 and the first storage tank 1. Simultaneously, the stirring component 9 continuously stirs the solution, preventing excessive concentration of suspended solids at the filter element 12 from causing blockage. This extends the effective filtration time of the filter element 12, thereby improving production efficiency. Furthermore, cleaning solvent is added to the first storage tank 1, the stirring component 9 is turned on, the first valve 8 is opened, the second valve 20 is closed, and the circulation pump 7 is turned on to introduce the cleaning solvent from the first storage tank 1 into the filter tank 2. This facilitates cleaning of the filter element 12 without frequent disassembly, thus extending its service life. The system employs a movable tube 13 and a mounting base 11. The movable tube 13 is threadedly connected to the filter element 12 via a second internal thread 19 and a second threaded ring 18. The filter element 12 is threadedly connected to the mounting base 11 via a first threaded ring 16 and a first internal thread 15. During disassembly, the movable tube 13 is aligned with the filter element 12, inserted, and rotated clockwise. The filter element 12 can be quickly removed from the mounting base 11 by using the clockwise thread locking mechanism between the movable tube 13 and the filter element 12, and the clockwise thread unlocking mechanism between the filter element 12 and the mounting base 11. During installation, the movable tube 13 is aligned with the mounting base 11, rotated counterclockwise, and moved downwards. The filter element 12 is fixed by using the counterclockwise unlocking mechanism between the movable tube 13 and the filter element 12, and the counterclockwise locking mechanism between the filter element 12 and the mounting base 11. This system allows for quick disassembly and assembly of the filter element 12 without the need for complex tools, reducing operational difficulty.

[0024] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. 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 preferred examples and are not intended to limit the 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 claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A filtration device, comprising a first storage tank (1), a filter tank (2), and a second storage tank (3), characterized in that: The bottom surface of the first storage tank (1) is provided with a connecting pipe (4), the bottom surface of the filter tank (2) is provided with a circulation pipe (5), the bottom surface of the filter tank (2) is provided with a discharge pipe (6), the inside of the filter tank (2) is provided with a stirring assembly (9), the inside of the filter tank (2) is provided with a mounting base (11), the inside of the mounting base (11) is provided with a first internal thread (15), the inside of the mounting base (11) is provided with a filter element (12), the surface of the filter element (12) is provided with a first threaded ring (16) and a second threaded ring (18), the top surface of the filter tank (2) is provided with an operation window (10), the inside of the operation window (10) is provided with a movable pipe (13), the inside of the movable pipe (13) is provided with a second internal thread (19), and the top surface of the movable pipe (13) is provided with a movable handle (14).

2. The filtration device according to claim 1, characterized in that: The stirring assembly (9) includes a servo motor (901) and a stirring rod (902), and the output end of the servo motor (901) is provided with the stirring rod (902).

3. The filtration device according to claim 1, characterized in that: The end of the connecting pipe (4) is connected to the top surface of the filter tank (2), and a circulation pump (7) is provided in the middle of the connecting pipe (4).

4. A filtration device according to claim 1, characterized in that: The end of the circulation pipe (5) is connected to the top surface of the first storage tank (1), and the circulation pipe (5) is provided with a first valve (8).

5. A filtration device according to claim 1, characterized in that: The end of the discharge pipe (6) is connected to the top surface of the second storage tank (3), and the surface of the discharge pipe (6) is provided with a second valve (20).

6. A filtration device according to claim 1, characterized in that: The position of the mounting base (11) corresponds to the position of the discharge pipe (6). The surface of the filter element (12) is provided with a protective cover (17). The first threaded ring (16) and the second threaded ring (18) are respectively provided on the bottom and top surfaces of the protective cover (17).

7. A filtration device according to claim 1, characterized in that: The shape of the first internal thread (15) is adapted to the first threaded ring (16), and the shape of the second internal thread (19) is adapted to the second threaded ring (18).

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