Filter for preparing ingredient solution of ternary precursor

Abstract

The utility model discloses a ternary precursor preparation ingredient solution filter which comprises a filter kettle body, a feeding pipe, a discharging pipe, an upper cover, a mesh basket and a filter bag and further comprises a bag body adjusting structure, four outer edges of the filter bag are provided with matching rods, the center of the bottom of the filter bag is provided with a connecting buckle, and the connecting buckle is connected with the bag body adjusting structure. The bag body adjusting structure comprises four inner fixing pieces arranged on the inner side of the net basket, a matching plate fixedly connected to the connecting buckle is arranged at the bottom of the net basket, a tensioning piece is arranged on the side, away from the connecting buckle, of the matching plate, and the tensioning piece extends and is fixed to the bottom of the interior of the filtering kettle body. The pressure of each position is balanced, and the phenomenon of pressure misjudgment is not prone to occurring.

Description

Technical Field

[0001] This utility model relates to a ternary precursor preparation structure, and in particular to a ternary precursor preparation standby feed solution filter. Background Technology

[0002] The ternary precursor material is nickel-cobalt-manganese hydroxide, which is made by stirring a sulfuric acid mixture solution composed of nickel salt, cobalt salt, and manganese salt as raw material and ammonia solution and alkaline solution as auxiliary agents. In the process of preparing the sulfuric acid mixture solution, the liquid raw material in the raw material vessel specified in the batching sheet is pumped into the required batching vessel by a flow meter. The required amount of liquid raw material is measured according to the requirements of the batching sheet. Then, the solid raw material is added to the batching vessel and mixed to obtain the required sulfuric acid mixture solution. The obtained sulfuric acid mixture solution is then filtered by pressure and fine filtration and then temporarily stored in a pressure stabilizing tube to wait for reaction with ammonia solution and alkaline solution.

[0003] In the existing process of pressure filtration of sulfuric acid mixed solutions, the sulfuric acid mixed solution is fed into a bag filter press. The solution that meets the requirements is squeezed out of the filter bag by pressurization, while large particles of impurities are retained inside the bag. Pressure is monitored at any time during the filtration process, and the filter bag is replaced when the pressure is too high. During the replacement of the filter bag, the filter bag needs to be evenly laid in the metal frame to ensure pressure uniformity. However, due to the uneven skill level of the installers, the filter bag is prone to wrinkling during the pressurization process after installation. This can easily lead to multiple folds and blockages at the discharge points of the filter bag, causing the pressure detection equipment to misjudge and requiring frequent opening of the cover for confirmation, which greatly delays the solution filtration progress. Utility Model Content

[0004] This invention provides a ternary precursor system standby feed solution filter that can finely adjust the spread area of ​​the filter bag after installation, so that the filter bag can be evenly attached to the metal mesh basket, so that the pressure at each position is balanced and the phenomenon of pressure misjudgment is not easily caused, which can effectively solve the above problems.

[0005] This utility model is implemented as follows:

[0006] A ternary precursor system standby feed solution filter, comprising:

[0007] A filter vessel body, wherein a feed pipe is provided on one side of the filter vessel body and connected to a tank containing a sulfate solution, a discharge pipe is provided at the lower end of the right side of the filter vessel body, a top cover is movably provided on the top of the filter vessel body, and a mesh basket is fixedly connected inside the filter vessel body, and a filter bag is movably provided inside the mesh basket.

[0008] The bag body adjustment structure includes four mating rods on the four outer edges of the filter bag, a connecting buckle at the center of the bottom of the filter bag, and four inner fixing parts inside the mesh basket. When the filter bag is embedded in the mesh basket, the mating rods slide down along the inner fixing parts. The bottom of the mesh basket is provided with a mating plate that mates with the connecting buckle.

[0009] As a further improvement, the internal fixing member includes a limiting seat disposed on the inner edge of the basket, and the inner side of the limiting seat has an elongated groove flush with the vertical section of the filter bag.

[0010] As a further improvement, the limiting seat includes a fixing strip located at the inner edge of the basket, and an elastic pad is provided on both sides of the fixing strip, with the two elastic pads clamped to the outer peripheral surface of the mating rod.

[0011] As a further improvement, the tensioning member includes a guide ring fixed to the bottom of the outer side of the basket, and a telescopic motor is connected to the bottom of the mating plate, the telescopic motor being fixed to the bottom of the interior of the filter tank.

[0012] As a further improvement, a tensioning member is provided on the side of the mating plate away from the connecting buckle. The tensioning member extends to the bottom of the filter body. When the mating rod of the filter bag is fully engaged with the inner fixing member, the tensioning member drives the mating plate to move downward, so that the mating plate tensions the filter bag downward and straightens it.

[0013] The beneficial effects of this utility model are:

[0014] In existing bag filters for solutions, it is unavoidable to replace the filter bags after a period of use. Generally, the filter bags are fixed in position by the pressure applied. However, if the filter bag is not installed properly, it is easy for wrinkles to form. These wrinkles will not be smoothed out by the pressure applied to the filter bag; instead, they will overlap and cover the filter pores, increasing the pressure inside the vessel. Therefore, this utility model, through the design of a bag body adjustment structure, firstly adds a matching rod and connecting buckle to the conventional filter bag, and at the same time sets an inner fixing component and matching plate on the mesh basket. After installation, the four sides of the filter bag can be fixed, and its bottom is connected to the matching plate. Since the top of the filter bag is fixed, the filter bag guided by the inner fixing component can be moved down by the downward movement of the tensioning component, thereby tightening the entire filter bag and smoothing out any wrinkles. The entire filter bag is in a relatively flat state, which can ensure the stability of the pressure in the filtration chamber and avoid misjudgment.

[0015] During the process of the internal fixing component and the filter bag being fitted together, it adopts a clamping long groove structure. Through the long groove in the limiting seat, the filter bag is vertically inserted from the top, so that even novices can fit it in correctly during installation, reducing the threshold of operation.

[0016] During the process of tensioning the filter bag, the guide ring cooperates with the basket and is tightly attached to the connecting buckle of the basket. Then, the retraction of the telescopic motor pulls the entire filter bag down. The accuracy of the pull-down can be controlled by a high-precision telescopic motor to prevent the filter bag from being torn. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural schematic diagram of a ternary precursor system standby feed solution filtration device according to this utility model.

[0019] Figure 2 This is a top view schematic diagram of a ternary precursor system standby feed solution filtration device according to this utility model.

[0020] Figure 3 This is a utility model Figure 2 Cross-sectional view at point AA.

[0021] Figure 4 This is a utility model Figure 3 Isometric side section view.

[0022] Figure 5 This is a utility model Figure 3 A magnified view of region B in the middle.

[0023] Figure 6 This is a utility model Figure 3 A magnified view of region C in the middle.

[0024] Figure 7 This is a three-dimensional structural diagram of the basket of this utility model viewed from below.

[0025] Figure 8 This is a top-view three-dimensional structural diagram of the basket of this utility model.

[0026] Figure 9 This is a utility model Figure 8 A magnified view of region D in the middle.

[0027] Figure 10 This is a schematic diagram of the structure of the upper cover, sealing element, and pressure seat of this utility model. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0029] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] Reference Figures 1-10As shown, a ternary precursor system standby feed solution filter includes a filter vessel 1. One side of the filter vessel 1 is provided with an inlet pipe 101 connected to a tank containing a sulfate solution. The lower right end of the filter vessel 1 is provided with an outlet pipe 102. A top cover 2 is movably mounted on the top of the filter vessel 1. A mesh basket 3 is fixedly connected inside the filter vessel 1, and a filter bag is movably mounted inside the mesh basket 3. The solution filtration device further includes an inner and outer layer separation structure 4, comprising an inner guide pipe 401 connected to the inlet pipe 101. A sealing element 402 is connected to the bottom of the inner guide pipe 401. The sealing element 402 is locked to the upper edge of the mesh basket 3 and forms a first sealed space with the mesh basket 3. A pressure seat 403 is connected below the top cover 2. When the top cover 2 is locked above the filter vessel 1, the pressure seat 403 is fixed above the sealing element 402. A second sealed space is formed between the pressure seat 403 and the sealing element 402. The horizontal part of the filter bag is pressed and fixed by the sealing element 402 and the pressure seat 403. The bag body adjustment structure 5 has four mating rods 601 on the four outer edges of the filter bag and a connecting buckle at the center of the bottom of the filter bag. The bag body adjustment structure 5 includes four inner fixing elements 501 set inside the mesh basket 3. When the filter bag is embedded in the mesh basket 3, the mating rods 601 slide down along the inner fixing elements 501. The bottom of the mesh basket 3 is provided with a mating plate 502 fixed to the connecting buckle. A tensioning element 503 is provided on the side of the mating plate 502 away from the connecting buckle. The tensioning element 503 extends and is fixed to the bottom of the filter body 1. When the mating rods 601 of the filter bag are fully engaged with the inner fixing elements 501, the tensioning element 503 drives the mating plate 502 to move down, so that the mating plate 502 tensions the filter bag downward and straightens it.

[0031] In existing bag filters for solutions, it is unavoidable to replace the filter bags after a period of use. Generally, the filter bags are fixed in position by the pressure applied. However, if the filter bags are not installed properly, they are prone to wrinkling. These wrinkles are not smoothed out by the pressure applied to the filter bags; instead, they cause the filter pores to overlap and cover each other, increasing the pressure inside the vessel. Therefore, this utility model, through the bag body adjustment structure 5, firstly adds a matching rod 601 and a connecting buckle to the conventional filter bag. At the same time, an inner fixing part 501 and a matching plate 502 are correspondingly set on the basket 3. After installation, the four sides of the filter bag can be fixed, and its bottom is connected to the matching plate 502. Since the top of the filter bag is fixed, the filter bag guided by the inner fixing part 501 can be moved down by the downward movement of the tensioning part 503, thereby tightening the entire filter bag and smoothing out any wrinkles. The entire filter bag is in a relatively flat state, which can ensure the pressure in the filtration chamber is stable and avoid misjudgment.

[0032] During the process of the inner fixing component 501 cooperating with the filter bag, the inner fixing component 501 in this embodiment includes a limiting seat 5011 disposed on the inner edge of the mesh basket 3. The inner side of the limiting seat 5011 has an elongated groove flush with the vertical section of the filter bag. It adopts a clamping elongated groove structure. Through the elongated groove in the limiting seat 5011, the filter bag is inserted vertically from the top, so that even novices can fit it correctly during installation, reducing the threshold of operation. In order to improve the adaptability to filter bags of different specifications, the limiting seat 5011 includes a fixing strip 50111 located on the inner edge of the mesh basket 3. An elastic pad 50112 is provided on both sides of the fixing strip 50111. The two elastic pads 50112 are clamped on the outer peripheral surface of the mating rod 601. The elastic pads 50112 can be selected and fixed by selecting different specifications of elastic pads 50112, thereby improving the practicality of this utility model.

[0033] During the process of tensioning the filter bag by the tensioning member 503, the tensioning member 503 in this embodiment includes a guide ring 5031 fixed to the bottom of the outer side of the mesh basket 3. The bottom of the mating plate 502 is connected to a telescopic motor 5032. The telescopic motor 5032 is fixed to the bottom of the inside of the filter body 1. It cooperates with the mesh basket 3 through the guide ring 5031 and is tightly adsorbed on the connecting buckle of the mesh basket 3. Then, by the retraction of the telescopic motor 5032, the entire filter bag is pulled down. The accuracy of the pull-down can be controlled by the high-precision telescopic motor 5032 to avoid tearing the filter bag. Preferably, the telescopic motor 5032 is a servo motor.

[0034] During filter bag replacement, the top cover 2 needs to be opened. However, if the gas in the filter body 1 is not completely vented, it is easy for the filter to burst open, causing the material to be sprayed everywhere, which is very difficult to clean. Therefore, this utility model sets the original single-sealed cavity as a double-sealed cavity. First, the gas is introduced directly into the mesh basket 3 through a separate inner guide tube 401, without being directly exposed inside the top cover 2. This prevents the top cover 2 from bursting open directly, allowing for a certain buffer time and space. Since the top cover 2 is equipped with a pressure seat 403, after the pressure seat 403 is opened, the limiting force inside the mesh basket 3 gradually decreases, allowing for slow ventilation without bursting open directly. This avoids the phenomenon of the filtered particles "blowing out" directly, making the air pressure inside the equipment more stable.

[0035] During the guiding process using the inner guide tube 401, the inner guide tube 401 is not just a connecting pipe. The inner guide tube 401 includes a cross section 4011 connected to the feed pipe 101. The cross section 4011 is connected to the lower passage section 4013 through a guide section 4012. A first filter baffle 4014 is provided between the cross section 4011 and the guide section 4012, and a second filter baffle 4015 is provided between the guide section 4012 and the lower passage section 4013, dividing the interior of the inner guide tube 401 into three parts. The first filter baffle 4014 and the second filter baffle 4015 are respectively provided at the connection positions of the three parts. The filtration accuracy of the first filter baffle 4014 and the second filter baffle 4015 is weaker than that of the filter bag. Therefore, the baffle can be set at the front end to perform preliminary filtration of the filtered liquid, reduce the wear and tear on the filter bag, and shorten the filter bag replacement cycle. This achieves the effect of guiding to form an independent space while also providing preliminary filtration of the filtrate.

[0036] To prevent the first filter baffle 4014 and the second filter baffle 4015 from becoming clogged, an external connecting pipe 4016 is provided at the end of the guide section 4012 away from the first filter baffle 4014. The external connecting pipe 4016 extends to the outside of the filter body 1 and communicates with a suction device. In this embodiment, by setting an external connecting pipe 4016 at the middle position between the first filter baffle 4014 and the second filter baffle 4015, back suction is performed through the external connecting pipe 4016. Since the aperture of the first filter baffle 4014 is larger than that of the second filter baffle 4015, the particle layer formed on the second filter baffle 4015 is thicker, so the back suction effect through the external connecting pipe 4016 is the best.

[0037] Both the sealing element 402 and the pressure seat 403 are used to fix the horizontal part of the filter bag. However, the gap between the sealing element 402 and the pressure seat 403 is not a flat part of the filter bag. The part of the filter bag between the sealing element 402 and the pressure seat 403 is an arched part. This part does not serve as the filtration part, but rather as a compensating part. If the entire filter bag is already in a taut state during the downward movement of the tensioning element 503, pulling it forcefully at this time will cause damage to the filter bag. Therefore, the arched part provides a certain amount of compensation for the downward pull of the filter bag, thereby ensuring that the filter bag is taut without being damaged.

[0038] During the sealing process of the sealing element 402, the sealing element 402 includes a sealing disc 4021 that is locked to the upper edge of the mesh basket 3 by a number of rivets. An inner sealing ring 4022 is fixedly connected to the lower part of the sealing disc 4021. The inner sealing ring 4022 fits against the upper edge of the mesh basket 3 and is sealed by two layers. First, the sealing disc 4021 is locked to achieve rigid fixation. Second, the inner sealing ring 4022 is fixed and works with the sealing disc 4021 to achieve soft sealing. Thus, the sealing of the first sealed space is achieved through the sealing effect of the two layers.

[0039] During the sealing process via the pressure seat 403, it is based on the sealing element 402. Specifically, the pressure seat 403 includes an outer sealing ring 4031 disposed outside the inner sealing ring 4022. Two lower sealing rings 4032 are disposed below the upper cover 2, spaced apart. The feed pipe 101 and the external connecting pipe 4016 are disposed in the gap between the lower sealing rings 4032. An outer sealing ring 4031 is also disposed outside the inner sealing ring 4022. The inner sealing ring 4022 forms two seals. Since the outer sealing ring 4031 is also fixed by the inner sealing ring 4022, in order to avoid poor pressing effect of the sealing disc 4021 on the outer sealing ring 4031, this utility model also provides a lower sealing ring 4032 at the upper end of the outer sealing ring 4031. The lower sealing ring 4032 presses the sealing disc 4021, thereby fixing the outer sealing ring 4031 and improving the fit between the outer sealing ring 4031 and the horizontal part of the filter bag.

[0040] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A ternary precursor system standby feed solution filter, characterized in that, include: A filter vessel (1) is provided with a feed pipe (101) connected to a tank containing a sulfate solution on one side of the filter vessel (1), a discharge pipe (102) is provided at the lower right end of the filter vessel (1), a top cover (2) is movably provided on the top of the filter vessel (1), and a mesh basket (3) is fixedly connected inside the filter vessel (1), and a filter bag is movably provided inside the mesh basket (3). The bag body adjustment structure (5) includes four inner fixing parts (501) on the four outer edges of the filter bag and a connecting buckle at the center of the bottom of the filter bag. The bag body adjustment structure (5) includes four inner fixing parts (501) set inside the mesh basket (3). When the filter bag is embedded in the mesh basket (3), the matching rod (601) slides down along the inner fixing part (501). The bottom of the mesh basket (3) is provided with a matching plate (502) that cooperates with the connecting buckle.

2. A ternary precursor system standby feed solution filter according to claim 1, characterized in that, The inner fixing member (501) includes a limiting seat (5011) disposed on the inner edge of the basket (3), and the inner side of the limiting seat (5011) has an elongated groove that is flush with the vertical section of the filter bag.

3. A ternary precursor system standby feed solution filter according to claim 2, characterized in that, The limiting seat (5011) includes a fixing strip (50111) located at the inner edge of the basket (3). An elastic pad (50112) is provided on both sides of the fixing strip (50111), and the two elastic pads (50112) are clamped on the outer circumferential surface of the mating rod (601).

4. A ternary precursor system standby feed solution filter according to claim 1, characterized in that, A tensioning member (503) is provided on the side of the mating plate (502) away from the connecting buckle. The tensioning member (503) includes a guide ring (5031) fixed to the bottom of the outside of the mesh basket (3). A telescopic motor (5032) is connected to the bottom of the mating plate (502). The telescopic motor (5032) is fixed to the bottom of the inside of the filter body (1).

5. A ternary precursor system standby feed solution filter according to claim 4, characterized in that, The tensioning member (503) extends to the bottom of the filter body (1). When the matching rod (601) of the filter bag is fully engaged with the inner fixing member (501), the tensioning member (503) drives the matching plate (502) to move down, so that the matching plate (502) tensions the filter bag downwards and straightens it.

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