Filter

Abstract

The utility model relates to the technical field of slurry filtering equipment, in particular to a filter which comprises a shell, a fence with a top opening is arranged at the bottom of an inner cavity of the shell; the top of the fence is hermetically connected with a chuck; an inner cavity of the shell is divided into a feeding cavity and a discharging cavity by the enclosure and the chuck; a feeding hole and a discharging hole are formed in the shell; at least one core body is arranged on the chuck; a first through hole corresponding to one core body is formed in the chuck; the core body comprises an inner framework, an outer framework and a filter layer, the inner framework is arranged in the outer framework, the filter layer is arranged between the inner framework and the outer framework in a surrounding manner, and the filter layer is of a folding structure; one end of the outer framework is sealed, and the other end is connected with the chuck through the first end cover; and a second through hole for communicating the inner framework with the first through hole is formed in the first end cover. The technical problems that a winding type filter element is usually adopted in an existing filter, the service life of the winding type filter element is short, the service cycle is shortened, the shutdown replacement frequency of a production line is increased, and then the production efficiency is reduced are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of slurry filtering equipment, in particular to a filter. Background Art

[0002] In the field of lithium batteries, filter technology is mainly based on the principle of physical filtration, using specific filter media to intercept and separate solid particles, impurities and harmful substances in the slurry, thereby improving the safety, stability and life of the battery. Its core technology lies in the selection and design of filter media. With the rise of electric vehicles and other fields, the requirements for filters are getting higher and higher. Batteries in these fields require more efficient, safe and reliable filter technology to ensure the best performance and life of the battery.

[0003] Existing filters usually use wound filter elements, which have a short service life, reduce the filter life cycle, increase the frequency of production line shutdown and replacement, and thus reduce production efficiency. Utility Model Content

[0004] The utility model provides a filter, which solves the technical problem that the existing filters usually adopt a wound filter element, which has a short service life, reduces the filter use cycle, increases the frequency of production line shutdown and replacement, and thus reduces production efficiency.

[0005] In view of this, the utility model provides a filter, including a housing;

[0006] The bottom of the inner cavity of the shell is provided with an enclosure with a top opening; the top of the enclosure is sealed and connected with a chuck; the enclosure and the chuck separate the inner cavity of the shell into a feed cavity and a discharge cavity; the shell is provided with a feed port connected to the feed cavity, and a discharge port connected to the discharge cavity;

[0007] At least one core body is provided on the chuck; a first through hole is provided on the chuck corresponding to one of the core bodies; the core body comprises an inner frame, an outer frame and a filter layer, the inner frame is arranged inside the outer frame, the filter layer is arranged around the inner frame and the outer frame, and the filter layer is arranged in a folded structure; one end of the outer frame is sealed, and the other end is connected to the chuck through a first end cover; the first end cover is provided with a second through hole for connecting the inner frame and the first through hole.

[0008] Optionally, the first end cover is provided with a first annular flange for abutting the inner frame on one side facing the outer frame, and a first annular clamping groove on the other side; a first annular clamping portion is provided on the chuck on the circumference of each first through hole, and the first annular clamping portion is adapted to be clamped with the first annular clamping groove.

[0009] Optionally, the first end cover is hot-melt welded to the outer frame.

[0010] Optionally, the first end cover is heat-melt welded to the chuck.

[0011] Optionally, the core body also includes a flat sealing cover for sealing the outer skeleton, and the sealing end of the outer skeleton is provided with a second end cover; the second end cover is provided with a second annular flange for abutting the inner skeleton on the side facing the outer skeleton, and a second annular clamping groove on the other side; a second annular clamping portion is provided on the flat sealing cover, and the second annular clamping portion of the flat sealing cover is adapted to be clamped with the second annular clamping groove.

[0012] Optionally, the first end cover and the second end cover have the same structure.

[0013] Optionally, the second end cover is heat-melt welded to the outer frame.

[0014] Optionally, the second end cover is heat-melt welded to the flat sealing cover.

[0015] Optionally, the top of the shell is provided with an exhaust port communicating with the inner cavity thereof.

[0016] Optionally, a discharge port communicating with the feed cavity is provided at the bottom of the shell.

[0017] The technical solution of the utility model has the following advantages:

[0018] 1. The utility model increases the filtration area of ​​the filter layer and improves the filtration effect by adopting a folded filter layer. Compared with the existing winding filter structure, it has a stronger dirt holding capacity and a longer service life. It also extends the service life of the filter, reduces costs, reduces the frequency of production line shutdowns and replacements, improves production efficiency, and has the advantage of high throughput.

[0019] 2. The foldable structure of the filter layer of the utility model is abutted between the inner frame and the outer frame, which improves the stability of the structure, makes its pressure difference low and stable, and the filter layer is not easily affected by the fluctuation of the feed pressure, thereby ensuring the filtering accuracy of the filter layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 An exploded view of the filter provided by the utility model;

[0022] Figure 2 A schematic diagram of the structure of the filter provided by the utility model at a first viewing angle;

[0023] Figure 3 for Figure 2 Sectional view at AA in the figure;

[0024] Figure 4 for Figure 3 The enlarged view of point B in the figure;

[0025] Figure 5 This is an exploded view of the core provided by the utility model.

[0026] Description of reference numerals:

[0027] 1. Shell; 2. Enclosure; 3. Chuck; 4. Feed cavity; 5. Discharge cavity; 6. Feed port; 7. Discharge port; 8. Core; 81. Inner frame; 82. External frame; 83. Filter layer; 84. First end cover; 85. Second through hole; 86. First annular flange; 87. First annular snap-fit ​​groove; 88. Flat cover; 89. Second end cover; 9. First annular snap-fit ​​portion; 10. Exhaust port; 11. Discharge port; 12. Discharge tray; 13. First through hole. DETAILED DESCRIPTION

[0028] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Example 1

[0032] See also Figures 1 to 5 , the present embodiment provides a filter for filtering coating slurry, comprising a shell 1; a baffle 2 with a top opening is provided at the bottom of the inner cavity of the shell 1; a chuck 3 is sealed and connected to the top of the baffle 2; the baffle 2 and the chuck 3 divide the inner cavity of the shell 1 into a feed cavity 4 and a discharge cavity 5; the shell 1 has a feed port 6 connected to the feed cavity 4, and a discharge port 7 connected to the discharge cavity 5; at least one core 8 is provided on the chuck 3; a first through hole 13 is provided on the chuck 3 corresponding to one core 8; the core 8 comprises an inner skeleton 81, an outer skeleton 82 and a filter layer 83, the inner skeleton 81 is arranged in the outer skeleton 82, the filter layer 83 is arranged around the inner skeleton 81 and the outer skeleton 82, and the filter layer 83 is arranged in a folded structure; one end of the outer skeleton 82 is sealed, and the other end is connected to the chuck 3 through a first end cover 84; the first end cover 84 is provided with a second through hole 85 for connecting the inner skeleton 81 and the first through hole 13.

[0033] It should be noted that the diameter of the second through hole 85 is less than or equal to the inner diameter of the inner skeleton 81, so that the slurry can flow out from the second through hole 85 after passing through the filter layer 83; wherein, the enclosure 2 and the chuck 3 are combined to form a discharge cavity 5; and the first through hole is connected to the discharge cavity 5.

[0034] In this embodiment, when filtering is required, the slurry enters the feed cavity 4 from the feed port 6, then passes through the outer skeleton 82 of the core 8 from the feed cavity 4, and then enters the inner skeleton 81 after being filtered by the filter layer 83, and then passes through the second through hole 85, the first through hole 13 and the discharge cavity 5 from the inner skeleton 81 in sequence and is discharged from the discharge port 7 to complete the filtering of the slurry. Among them, the filter layer 83 is arranged in a folding structure, which increases the filtering area of ​​the filter layer 83 and improves the filtering effect. Compared with the existing winding filter structure, its pollution holding capacity is stronger, the service life is longer, and the service life of the filter is extended, the cost is reduced, the frequency of production line shutdown and replacement is reduced, the production efficiency is improved, and it has the advantage of high throughput; at the same time, the filter layer 83 is arranged in a folding structure to abut between the inner skeleton 81 and the outer skeleton 82, which improves the stability of the structure, makes its pressure difference low and stable, and the filter layer 83 is not easily affected by the fluctuation of the feed pressure to affect the filtering accuracy, thereby ensuring the filtering accuracy of the filter layer 83.

[0035] Example 2

[0036] As a further improvement to Example 1, Figure 1 , Figures 3 to 5 As shown, the first end cover 84 is provided with a first annular flange 86 for abutting the inner frame 81 on one side facing the outer frame 82, and a first annular clamping groove 87 on the other side; a first annular clamping portion 9 is provided on the chuck 3 on the peripheral side of each first through hole 13, and the first annular clamping portion 9 is adapted to be clamped with the first annular clamping groove 87.

[0037] It should be noted that the diameter of the first through hole 13 is smaller than that of the first annular flange 86 .

[0038] In this embodiment, after the filter layer 83 and the inner skeleton 81 are placed in the outer skeleton 82, the first annular flange 86 on the first end cover 84 abuts against the inner skeleton 81 to fix it in the outer skeleton 82 to avoid displacement during the filtration process and affect the filtration effect of the filter layer 83. When installing the core body 8, the first annular clamping groove 87 on the first end cover 84 is clamped with the first annular clamping portion 9 on the chuck 3 to install the core body 8 on the chuck 3 to avoid deviation during installation, facilitate installation and disassembly, improve installation efficiency, and thus improve production efficiency.

[0039] On the basis of the above-mentioned embodiment, in a preferred embodiment, the first end cover 84 is heat-melt welded to the outer frame 82 .

[0040] In this embodiment, the first end cover 84 and the outer frame 82 are connected by hot-melt welding, which improves the sealing effect and the stability of the connection, thereby increasing the service life.

[0041] On the basis of the above-mentioned embodiment, in a preferred embodiment, the first end cover 84 is heat-melt-welded to the chuck 3 .

[0042] In this embodiment, the first end cover 84 is connected to the chuck 3 by hot-melt welding, which improves the sealing effect and the stability of the connection, thereby increasing the service life.

[0043] Based on the above implementation, in a preferred implementation, Figure 1 , Figures 3 to 5 As shown, the core body 8 also includes a flat sealing cover 88 for sealing the outer skeleton 82, and a second end cover 89 is provided at the sealing end of the outer skeleton 82; the second end cover 89 is provided with a second annular flange for abutting the inner skeleton 81 on the side facing the outer skeleton 82, and a second annular clamping groove on the other side; a second annular clamping portion is provided on the flat sealing cover 88, and the flat sealing cover 88 is adapted to be clamped with the second annular clamping groove through the second annular clamping portion.

[0044] In this embodiment, the flat sealing cover 88 cooperates with the second annular clamping groove through the second annular clamping portion to facilitate connection with the second end cover 89, and is then set at the sealing end of the outer skeleton 82 for sealing. At the same time, the second end cover 89 abuts against the inner skeleton 81 through the second annular flange to fix it in the outer skeleton 82 to avoid displacement during the filtration process and affect the filtration effect of the filter layer 83.

[0045] Based on the above implementation, in a preferred implementation, Figure 1 , Figures 3 to 5 As shown, the first end cover 84 and the second end cover 89 have the same structure.

[0046] In this embodiment, the first end cover 84 and the second end cover 89 adopt the same structure, can be used at both ends of the outer frame 82, can be mass-produced, and reduce production costs.

[0047] On the basis of the above-mentioned embodiment, in a preferred embodiment, the second end cover 89 is heat-melt welded to the outer frame 82 .

[0048] In this embodiment, the second end cover 89 is connected to the outer frame 82 by hot-melt welding, which improves the sealing effect and the stability of the connection, thereby increasing the service life.

[0049] On the basis of the above-mentioned embodiment, in a preferred embodiment, the second end cover 89 and the flat sealing cover 88 are heat-melt welded.

[0050] In this embodiment, the second end cover 89 and the flat sealing cover 88 are connected by hot-melt welding, which improves the sealing effect and the stability of the connection, thereby increasing the service life.

[0051] Based on the above implementation, in a preferred implementation, Figures 1 to 3 As shown, the top of the housing 1 is provided with an exhaust port 10 communicating with the inner cavity thereof.

[0052] In this embodiment, an exhaust port 10 is provided on the top of the shell 1 to facilitate the exhaust of gas in the slurry and ensure the filtering quality of the slurry.

[0053] Based on the above implementation, in a preferred implementation, Figure 1 and Figure 2 As shown, a discharge port 11 communicating with the feed chamber 4 is provided at the bottom of the housing 1 .

[0054] In this embodiment, the slurry remaining in the feed cavity 4 can be discharged through the discharge port 11 after the filtration is completed.

[0055] Specifically, this embodiment does not limit the number of core bodies 8. The number of core bodies 8 can be selected according to actual conditions, and the number can be selected as 1, 2, 3 or more. Preferably, in one embodiment, the core bodies 8 are provided with seven, so as to improve the filtering capacity and service life, increase the maintenance cycle, and improve the production efficiency.

[0056] Specifically, the shell 1 includes an upper shell 1 and a lower shell 1 , and the upper shell 1 and the lower shell 1 are detachably connected to facilitate installation of the core 8 and cleaning of the interior.

[0057] Specifically, Figure 1 and Figure 3 As shown, the bottom of the housing 1 is provided with a groove, and the bottom of the groove is provided with an opening connected to the discharge chamber 5; a discharge tray 12 is embedded in the groove, and the discharge tray 12 is detachably connected to the groove by bolts; a discharge port 7 is provided on the discharge tray 12, and the discharge port 7 is connected to the opening. In this embodiment, the discharge tray 12 is connected to the groove by bolts, which is convenient for installation and disassembly, so that the discharge chamber 5 can be cleaned through the opening.

[0058] Specifically, both the discharge port 7 and the feed port 6 are provided with a one-way valve to prevent the slurry from flowing back.

[0059] The specific working principle of the filter provided in this embodiment is: when filtering is required, the slurry enters the feed cavity 4 from the feed port 6, then passes through the outer skeleton 82 of the core 8 from the feed cavity 4, and then enters the inner skeleton 81 after being filtered by the filter layer 83, and then passes through the second through hole 85, the first through hole 13 and the discharge cavity 5 in sequence from the inner skeleton 81 and is discharged from the discharge port 7, thereby completing the filtration of the slurry. The filter provided in this embodiment has a folded structure through the filter layer 83, which increases the filtration area of ​​the filter layer 83 and improves the filtration effect. Compared with the existing winding filter structure, it has the advantages of strong dirt holding capacity, long service life, long service cycle, high flux, low pressure difference and stability, thereby reducing costs, reducing the frequency of production line shutdown and replacement, and improving production efficiency; at the same time, the filter layer 83 and the inner skeleton 81 are fixed in the outer skeleton 82 by the first end cover 84 and the second end cover 89, and then the chuck 3 and the flat cover 88 are connected by hot melt welding, which further ensures stability, improves service life, and ensures the filtration accuracy of the filter layer 83. Its nominal filtration accuracy range can be from 0.1μm to 60μm, which solves the technical problem that the existing filter usually adopts a winding filter element, which has a short service life, reduces the filter service cycle, increases the frequency of production line shutdown and replacement, and thus reduces production efficiency.

[0060] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A filter, characterized in that: It comprises a housing (1); The bottom of the inner cavity of the shell (1) is provided with a baffle (2) with a top opening; the top of the baffle (2) is sealed and connected with a chuck (3); the baffle (2) and the chuck (3) separate the inner cavity of the shell (1) into a feed cavity (4) and a discharge cavity (5); the shell (1) is provided with a feed port (6) connected to the feed cavity (4), and a discharge port (7) connected to the discharge cavity (5); At least one core (8) is provided on the chuck (3); a first through hole (13) is provided on the chuck (3) corresponding to one of the cores (8); the core (8) comprises an inner frame (81), an outer frame (82) and a filter layer (83); the inner frame (81) is arranged inside the outer frame (82); the filter layer (83) is arranged around the inner frame (81) and the outer frame (82), and the filter layer (83) is arranged in a folded structure; one end of the outer frame (82) is sealed, and the other end is connected to the chuck (3) via a first end cover (84); the first end cover (84) is provided with a second through hole (85) for connecting the inner frame (81) and the first through hole (13).

2. The filter according to claim 1, characterized in that The first end cover (84) is provided with a first annular flange (86) for abutting against the inner frame (81) on one side facing the outer frame (82), and a first annular clamping groove (87) on the other side; a first annular clamping portion (9) is provided on the chuck (3) around each of the first through holes (13), and the first annular clamping portion (9) is adapted to be clamped with the first annular clamping groove (87).

3. The filter according to claim 1, characterized in that The first end cover (84) is heat-melt welded to the outer frame (82).

4. The filter according to claim 1, characterized in that The first end cover (84) is heat-melt welded to the chuck (3).

5. The filter according to any one of claims 1 to 4, characterized in that: The core body (8) also includes a flat sealing cover (88) for sealing the outer frame (82), and the sealing end of the outer frame (82) is provided with a second end cover (89); the second end cover (89) is provided with a second annular flange for abutting the inner frame (81) on one side facing the outer frame (82), and a second annular clamping groove on the other side; the flat sealing cover (88) is provided with a second annular clamping portion, and the second annular clamping portion of the flat sealing cover (88) is adapted to be clamped with the second annular clamping groove.

6. The filter according to claim 5, characterized in that The first end cover (84) and the second end cover (89) have the same structure.

7. The filter according to claim 5, characterized in that The second end cover (89) is heat-melt welded to the outer frame (82).

8. The filter according to claim 5, characterized in that The second end cover (89) is heat-melt welded to the flat sealing cover (88).

9. The filter according to claim 1, characterized in that The top of the shell (1) is provided with an exhaust port (10) which is in communication with the inner cavity thereof.

10. The filter according to claim 1, characterized in that The bottom of the shell (1) is provided with a discharge port (11) which is in communication with the feed chamber (4).

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