Filtering device and filtering equipment

Abstract

The utility model relates to the technical field of cleaning of filtering equipment, and discloses a filtering device and filtering equipment. The filtering device comprises a tank body, a filtering piece and a first air bag, and a filtering cavity used for containing slurry is formed in the tank body. The filter part is arranged in the filter cavity, a buffer chamber is formed in the filter part, and a filtrate chamber is formed between the peripheral wall of the filter part and the tank wall of the tank body. The filtering piece is provided with filtering through holes, large-particle foreign matters in the buffer chamber can be filtered, and filtered slurry flows into the filtrate chamber through the filtering through holes. The first air bag is arranged on the tank wall of the tank body and located in the liquid filtering chamber, the slurry entering the liquid filtering chamber from the buffering chamber and the slurry originally in the liquid filtering chamber impact the first air bag, and the first air bag is compressed by impact and applies counter-acting force to the slurry in the process of gradually recovering the volume. Slurry in the filtrate chamber can wash the filtering piece, and therefore efficient cleaning of the filtering piece is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of filtration equipment cleaning technology, specifically relating to a filtration device and filtration equipment. Background Technology

[0002] Existing slurry filters typically consist of a filter body, a filter screen, and a cleaning device. Slurry is filtered through the filter screen, but during the filtration process, large particles often clog the filter screen, leading to a decrease in the slurry filtration efficiency. In this case, the large particles are usually cleaned by driving the cleaning device to rotate and contact the filter screen. However, this cleaning method has limited effectiveness and is prone to generating foreign matter that contaminates the slurry due to friction. Utility Model Content

[0003] The purpose of this application is to provide a filtration device and filtration equipment to solve the technical problem of poor cleaning effect during the cleaning process of filter screen.

[0004] To achieve the above objectives, this application provides a filtration device, which includes:

[0005] A filtration device, comprising:

[0006] The tank body contains a filter chamber.

[0007] A filter element is installed in the filter chamber, forming a buffer chamber inside the filter element. A filtrate chamber is formed between the outer peripheral wall of the filter element and the tank wall of the tank. Filter holes are provided on the filter element.

[0008] The first airbag is installed on the tank wall and located in the filtrate chamber. The slurry entering the filtrate chamber from the buffer chamber can impact the first airbag, causing the first airbag to compress and have a reverse force that causes the slurry to wash the filter element.

[0009] In some embodiments, the tank is provided with an inlet pipe and an outlet pipe, the inlet pipe being connected to a buffer chamber and the outlet pipe being connected to a filtrate chamber.

[0010] In some embodiments, the filtration device further includes a second airbag disposed on the top cover of the tank and facing the filter chamber.

[0011] In some embodiments, both the first and second airbags are connected to inflation tubes.

[0012] In some embodiments, the number of first airbags is at least one;

[0013] And / or, the number of second airbags is at least one.

[0014] In some embodiments, the filtration device further includes a mounting plate disposed within the filtration chamber, and the mounting plate is clamped at the connection between the first tank wall portion and the second tank wall portion of the tank body, and positioned above the top of the first airbag.

[0015] In some embodiments, a material inlet is formed on the mounting plate, and a feed pipe penetrates the second tank wall and is connected to the buffer chamber through the material inlet.

[0016] In some embodiments, the filtration device further includes a slag discharge pipe that penetrates the bottom cover of the tank and communicates with the bottom of the filter element.

[0017] In some embodiments, the filtration device further includes a cleaning line, one end of which penetrates the second tank wall and is connected to the buffer chamber through a material inlet. The cleaning line includes an air inlet branch and a liquid inlet branch.

[0018] In some embodiments, a filtration device is proposed, comprising the filtration apparatus described above.

[0019] Through the above technical solutions, the filtration device and filtration equipment provided in this application have the following beneficial effects:

[0020] The filtration device of this application includes a tank, a filter element, and a first airbag. The tank has an internal filtration chamber for holding slurry. The filter element is disposed within the filtration chamber, and a buffer chamber is formed inside the filter element. A filtrate chamber is formed between the outer peripheral wall of the filter element and the tank wall. The filter element has filtration holes that can filter large particles in the buffer chamber, and the filtered slurry flows through the filtration holes into the filtrate chamber. The first airbag is disposed on the tank wall and located within the filtrate chamber. When the inlet and outlet pipes are quickly closed, the slurry entering the filtrate chamber from the buffer chamber, as well as the slurry already in the filtrate chamber, impacts the first airbag. The first airbag is compressed by the impact and, as it gradually recovers its volume, applies a reaction force to the slurry, allowing the slurry in the filtrate chamber to wash over the filter element, thereby achieving efficient cleaning of the filter element.

[0021] Other features and advantages of the embodiments of this application will be described in detail in the following detailed description section. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the following detailed description to explain the embodiments of this application, but do not constitute a limitation on the embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without any inventive effort. In the drawings:

[0023] Figure 1This is a schematic diagram of the filter device according to this application;

[0024] Figure 2 This is a schematic diagram of the structure between the mounting plate and the filter element according to this application.

[0025] Explanation of reference numerals in the attached figures

[0026] 2. Filter element 91. Intake branch

[0027] 21 Buffer chamber 92 Inlet branch

[0028] 22 Filtration chamber 11 Feed pipe

[0029] 3 First airbag 12 Discharge pipe

[0030] 4 Second airbag 13 First tank wall

[0031] 5. Inflation pipe 14. Second tank wall section

[0032] 6 Pressure regulating valve 15 Top cover

[0033] 7 Mounting plate 16 Bottom cover

[0034] 8 Slag Discharge Pipe Detailed Implementation

[0035] The specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0036] The filtration apparatus and filtration device according to this application are described below with reference to the accompanying drawings.

[0037] like Figure 1 As shown in the embodiments of this application, a filtration device includes a tank, a filter element 2, and a first airbag 3.

[0038] The tank has a filter chamber inside for holding the slurry.

[0039] The filter element 2 is installed in the filter chamber, forming a buffer chamber 21. A filtrate chamber 22 is formed between the outer peripheral wall of the filter element 2 and the tank wall. The buffer chamber 21 is connected to the feed pipe 11 provided on the tank, and the filtrate chamber 22 is connected to the discharge pipe 12 provided on the tank. The filter element 2 is provided with multiple filter holes, which can filter the slurry containing large particles in the buffer chamber 21. The large particles are retained in the buffer chamber 21, and the filtered slurry can flow to the filtrate chamber 22 through the filter holes.

[0040] The first airbag 3 is installed on the tank wall and located in the filtrate chamber 22. The slurry enters the filter element 2 through the feed pipe 11 and is discharged through the discharge pipe 12. If the filter element 2 needs to be cleaned, the discharge pipe 12 is quickly closed. At this time, the slurry entering the filtrate chamber 22 from the buffer chamber 21 and the slurry that was originally in the filtrate chamber 22 will impact the first airbag 3. The first airbag 3 is compressed by the impact and gradually restores its volume, and then applies the reaction force to the slurry, so that the slurry in the filtrate chamber 22 can flush the filter element 2, thereby achieving efficient cleaning of the filter element 2.

[0041] The discharge pipe 12 is equipped with a discharge valve, which is used to control the opening and closing of the discharge pipe 12.

[0042] In this embodiment, when the filter is operating normally, the discharge valve is quickly closed. Due to the inertia of the liquid, the slurry impacts the first airbag 3. The first airbag 3 deforms under the impact force, and during its recovery, a reaction force is generated on the slurry, causing vibration in the filtrate chamber 22. This vibration washes over the filter element 2, dislodging large particles that clog the filter holes. These large particles then settle at the bottom of the filter element 2 under gravity, ensuring good filtration performance. Furthermore, during the entire deformation and recovery process of the first airbag 3, the components of the filter do not come into contact with or rub against the filter element 2, thus preventing the generation of foreign matter due to friction. This effectively solves the problem in existing slurry filters where friction easily generates foreign matter, leading to slurry contamination. It should be noted that the filter device of this embodiment can be applied to the precursor reaction process of new energy batteries, exhibiting good filtration performance, effectively reducing magnetic and non-magnetic foreign matter, improving product quality, and significantly reducing the risk of product contamination.

[0043] like Figure 1 As shown in this embodiment, the filtration device further includes a second airbag 4, which is disposed on the top cover 15 of the tank and faces the filter chamber. Because the second airbag 4 is disposed on the top cover 15, the slurry can impact large particles blocking the filter holes from above, further improving the cleaning effect of large particles and ensuring that the filter element 2 has a good filtration effect.

[0044] like Figure 1 As shown in the embodiment of this application, the filtering device further includes an inflation tube 5 for inflating the first airbag 3 and the second airbag 4. The inflation tube 5 is equipped with a pressure regulating valve 6. By controlling the opening and closing of the pressure regulating valve 6, the inflation volume of the first airbag 3 and the second airbag 4 can be controlled respectively. The specific inflation volume can be set according to actual needs. The working principle of the second airbag 4 is the same as that of the first airbag 3, and therefore will not be described again.

[0045] In this embodiment, the number of the first airbag 3 is at least one, and / or the number of the second airbag 4 is at least one. The number of the first airbag 3 and the second airbag 4 can be adjusted according to actual needs.

[0046] Optionally, in one embodiment, only one first airbag 3 may be provided. Preferably, the first airbag covers 60% to 100% of the inner wall of the first tank wall portion 13, ensuring that the first airbag 3 can have a large contact area with the slurry. This allows the first airbag 3 to react against the slurry under the scouring action of the slurry, thereby scouring the filter element 2 and achieving efficient cleaning of the filter element 2. More preferably, the first airbag covers 100% of the inner wall of the first tank wall portion 13.

[0047] In another embodiment, two or more first airbags 3 may be provided. These first airbags 3 may be arranged continuously or intermittently along the inner circumferential wall of the first tank wall 13 to ensure that the filter element 2 can be uniformly flushed by the reaction force of the slurry. It should be noted that a clearance gap must be maintained between the outer circumferential wall of the first airbag 3 in the inflated state and the filter element 2 to prevent the first airbag 3 from contacting the outer circumferential wall of the filter element 2 under the reaction force of the slurry, which could lead to contact wear of the first airbag 3 and affect the flushing effect on the filter element 2 due to air leakage caused by wear.

[0048] Alternatively, in one embodiment, only one second airbag 4 may be provided.

[0049] In another embodiment, two or more second airbags 4 may also be provided.

[0050] In the embodiments of this application, the fixing methods of the first airbag 3 and the second airbag 4 include, but are not limited to, clamping. Specifically, they can be adjusted according to actual needs.

[0051] Optionally, in one embodiment, such as Figure 1 As shown, the top end of the first airbag 3 is located at the connection between the first tank wall portion 13 and the second tank wall portion 14 of the tank body, and the bottom end of the first airbag 3 is located at the connection between the second tank wall portion 14 and the bottom cover 16. Furthermore, a connector can be provided to press and fix the first tank wall portion 13 and the second tank wall portion 14, and also press and fix the second tank wall portion 14 and the bottom cover 16, to ensure that the first airbag 3 can be stably installed on the tank body, avoiding poor pressing effect that could cause the first airbag 3 to fall off and affect the working effect of the filtration device.

[0052] like Figure 1 and Figure 2As shown in the embodiment of this application, the filter device further includes a mounting plate 7 disposed in the filter cavity, and the mounting plate 7 is clamped at the connection between the first tank wall portion 13 and the second tank wall portion 14 of the tank body, and is placed on the upper part of the top of the first airbag 3. The mounting plate 7 can be pressed and fixed by the first tank wall portion 13 and the second tank wall portion 14, and the connection stability is good.

[0053] In this embodiment, the mounting plate 7 has a material inlet communicating with the buffer chamber 21, and the feed pipe 11 penetrates the second tank wall 14 and communicates with the buffer chamber 21 through the material inlet. In addition, a feed valve is provided on the feed pipe 11, and the feed rate of the feed pipe 11 can be controlled by controlling the opening and closing of the feed valve.

[0054] In this embodiment, the filter element 2 is a filter screen structure. The filter element 2 is connected to the mounting plate 7 and located on the side of the mounting plate 7 opposite to the top cover 15. The filter element 2 is arranged along the height direction and has a flow gap between it and the bottom cover 16, facilitating the flow of the slurry filtered in the buffer chamber 21 to the filtrate chamber 22, ensuring good flowability of the slurry. The height direction is the up-down direction in the figure. Furthermore, the filter element 2 can be integrally connected to the mounting plate 7.

[0055] like Figure 1 As shown in the embodiment of this application, the filtration device further includes a slag discharge pipe 8, which penetrates the bottom of the filter element 2 and communicates with the buffer chamber 21. The bottom of the filter element 2 is funnel-shaped and gradually narrows from top to bottom, facilitating the collection of large particles at the bottom of the filter element 2, allowing the large particles to be easily discharged from the slag discharge pipe 8. In addition, a slag discharge valve is provided on the slag discharge pipe 8, and the discharge of large particles from the buffer chamber 21 can be controlled by controlling the opening and closing of the slag discharge valve.

[0056] like Figure 1 As shown in this embodiment, the filtration device further includes a cleaning pipeline. One end of the cleaning pipeline penetrates the second tank wall 14 and is connected to the buffer chamber 21 through a material inlet. The cleaning pipeline includes an air inlet branch 91 and a liquid inlet branch 92. An air inlet valve is provided on the air inlet branch 91, and a liquid inlet valve is provided on the liquid inlet branch 92. Specifically, the slag discharge and cleaning steps are as follows:

[0057] First, when a large amount of large foreign particles accumulate in filter element 2, the feed valve can be closed to stop feeding. Simultaneously, the discharge valve and air inlet valve can be opened to fill the tank with compressed air, ensuring the slurry is completely discharged. After the slurry is discharged, the air inlet valve and discharge valve can be closed. Next, the slag discharge valve and liquid inlet valve can be opened to inject clean water into the tank to rinse filter element 2, allowing the large foreign particles inside filter element 2 to be discharged to the outside through the slag discharge pipe 8. After slag discharge is completed, the liquid inlet valve can be closed. Finally, the air inlet valve and discharge valve can be opened to fill the tank with compressed air, completing the purging and cleaning of filter element 2.

[0058] In this application embodiment, a filtration device is proposed, including the filtration apparatus as described above. Since the filtration device employs all embodiments of the filtration apparatus, it also possesses all the beneficial effects of the filtration apparatus, which will not be elaborated upon here.

[0059] In the description of this application, it should be understood that 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 technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0060] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0061] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0062] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A filtration device, characterized in that, The filtration device includes: The tank body, wherein a filter chamber is formed within the tank body; A filter element (2) is disposed in the filter cavity. A buffer chamber (21) is formed inside the filter element (2). A filtrate chamber (22) is formed between the outer peripheral wall of the filter element (2) and the tank wall of the tank. A filter through hole is provided on the filter element (2). The first airbag (3) is disposed on the tank wall of the tank body and located in the filtrate chamber (22). The slurry entering the filtrate chamber (22) from the buffer chamber (21) can impact the first airbag (3) so that the first airbag (3) is compressed and has a reverse force that causes the slurry to wash the filter element (2).

2. The filtration device according to claim 1, characterized in that, The tank is provided with a feed pipe (11) and a discharge pipe (12). The feed pipe (11) is connected to the buffer chamber (21), and the discharge pipe (12) is connected to the filtrate chamber (22).

3. The filtration device according to claim 2, characterized in that, The filtration device further includes a second airbag (4), which is arranged on the top cover (15) of the tank and faces the filter chamber.

4. The filtration device according to claim 3, characterized in that, Both the first airbag (3) and the second airbag (4) are connected to an inflation tube (5).

5. The filtration device according to any one of claims 3-4, characterized in that, The number of the first airbags is at least one; And / or, the number of the second airbags is at least one.

6. The filtration device according to any one of claims 3-4, characterized in that, The filter device further includes a mounting plate (7) disposed in the filter cavity, and the mounting plate (7) is sandwiched between the first tank wall portion (13) and the second tank wall portion (14) of the tank body, and is placed on the upper part of the top of the first airbag (3).

7. The filtration device according to claim 6, characterized in that, A material inlet is formed on the mounting plate (7), and the feed pipe (11) penetrates the second tank wall (14) and is connected to the buffer chamber (21) through the material inlet.

8. The filtration device according to claim 7, characterized in that, The filtration device also includes a slag discharge pipe (8), which passes through the bottom cover (16) of the tank and is connected to the bottom of the filter element (2).

9. The filtration device according to claim 8, characterized in that, The filtration device also includes a cleaning pipeline, one end of which penetrates the second tank wall (14) and is connected to the buffer chamber (21) through the material inlet. The cleaning pipeline includes an air inlet branch (91) and a liquid inlet branch (92).

10. A filtration device, characterized in that, Includes the filtration device according to any one of claims 1 to 9.

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