Filter

Abstract

The utility model discloses a filter, which comprises a first shell, a second shell, a filter element, a filter element and a filter element, and is characterized in that the first shell is provided with at least one feed port and discharge port; the cylindrical filter element is arranged in the shell in the vertical direction and divides an inner cavity of the first shell into a feeding cavity and a filtering cavity; the feeding cavity is communicated with the filtering cavity through the cylindrical filter element; the feeding hole is communicated with the feeding cavity, and the discharging hole is communicated with the filtering cavity; the cleaning assembly comprises a rotating shaft, a first scraping plate and a driving part; the rotating shaft is rotatably arranged in the first shell in the vertical direction and is arranged in the cylindrical filter element in a penetrating manner; the output end of the driving part is in driving connection with the rotating shaft and is suitable for driving the rotating shaft to rotate in the first shell; the first scraping plate is arranged on the rotating shaft; a cleaning channel is formed in the rotating shaft in the axial direction; the bottom end of the cleaning channel is sealed, and the top end is suitable for communicating with external liquid supply equipment; a plurality of cleaning holes are formed in the rotating shaft; and the discharging assembly is arranged at the bottom of the first shell and is communicated with the inner cavity of the cylindrical filter element. The technical problem that an existing filter is poor in cleaning effect is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery glue coating and feeding systems, in particular to a filter. Background Art

[0002] Coating is one of the key processes in the production of lithium battery pole pieces. During the coating slurry transportation process, a filter is required to filter the slurry to prevent large particles from entering the coating process and reducing the coating quality.

[0003] Existing filters usually include a filter housing assembly, a cylindrical filter element, a rotating spindle and a motor. The filter housing assembly is provided with a sewage outlet, a feed inlet and a discharge outlet. The filter element is arranged in the filter housing assembly and separates the feed inlet and the discharge outlet. The rotating spindle extends into the filter element. A scraper is provided on the rotating spindle, and is driven by the rotating spindle to rotate in the filter element to scrape off particles on the filter element. However, this cleaning method has a poor cleaning effect. Large particles in the slurry still clog the mesh of the filter element, affecting the filtration efficiency. It is necessary to stop the machine and remove the filter element for cleaning. Utility Model Content

[0004] The utility model provides a filter, which solves the technical problem that the existing filter cleaning method has poor cleaning effect, large particles in the slurry still block the mesh of the filter element, affecting the filtering efficiency, and the filter element needs to be stopped and removed for cleaning.

[0005] In view of this, the utility model provides a filter, comprising:

[0006] A first shell having at least one feed inlet and a discharge outlet;

[0007] A cartridge filter element is vertically arranged in the housing; the cartridge filter element divides the inner cavity of the first housing into a feed cavity and a filter cavity from top to bottom; the feed cavity is connected to the filter cavity through the cartridge filter element; the feed port is connected to the feed cavity, and the discharge port is connected to the filter cavity;

[0008] A cleaning assembly, comprising a rotating shaft, a first scraper and a driving member; the rotating shaft is rotatably arranged in the first housing in a vertical direction; the rotating shaft and the cartridge filter element are coaxially arranged in the cartridge filter element; the driving member is arranged on the first housing, and the output end of the driving member is drivingly connected to the rotating shaft, suitable for driving the rotating shaft to rotate in the first housing; the first scraper is arranged on the rotating shaft, suitable for scraping the inner side wall of the cartridge filter element; a cleaning channel is arranged in the rotating shaft along its axial direction; the bottom end of the cleaning channel is sealed, and the top end of the cleaning channel is suitable for communicating with an external liquid supply device to provide cleaning liquid; a plurality of cleaning holes are arranged on the rotating shaft corresponding to the inner cavity of the cartridge filter element, and the cleaning holes are communicated with the cleaning channel;

[0009] The discharge assembly is arranged at the bottom of the first shell and is communicated with the inner cavity of the cartridge filter element, and is suitable for discharging the cleaning liquid.

[0010] Optionally, a one-way valve assembly is provided in the cleaning channel, and the one-way valve assembly is located above the plurality of cleaning holes.

[0011] Optionally, the one-way valve assembly includes a sealing ball and an elastic member; a mounting groove of a preset length is coaxially provided in the cleaning channel along its length direction, and the diameter of the mounting groove is larger than the diameter of the cleaning channel; the sealing ball and the elastic member are arranged in the mounting groove in sequence from top to bottom; the top of the elastic member is connected to the sealing ball, and the bottom of the elastic member is connected to the bottom of the mounting groove; the sealing ball is clearance-matched with the mounting groove, and the diameter of the sealing ball is larger than the diameter of the cleaning channel, and is suitable for abutting and sealing the cleaning channel under the elastic action of the elastic member.

[0012] Optionally, a chamfered structure is provided at a connection point between the cleaning channel and the top of the mounting groove.

[0013] Optionally, the rotating shaft includes a first rotating shaft and a second rotating shaft coaxially arranged from top to bottom, the bottom end of the first rotating shaft can be slidably inserted into the top end of the second rotating shaft, the mounting groove is arranged at the bottom end of the first rotating shaft, and the first rotating shaft and the second rotating shaft are flange-connected.

[0014] Optionally, the cleaning component further comprises an adapter, which is rotatably connected to the top end of the rotating shaft, and the inner cavity of the adapter is communicated with the top end of the cleaning channel; the rotating shaft is suitable for being connected to an external liquid supply device through the adapter.

[0015] Optionally, the bottom of the cartridge filter element is sealed and connected to the bottom of the inner cavity of the first shell; a connecting hole is provided at the bottom of the first shell corresponding to the inner cavity of the cartridge filter element, suitable for connecting the discharge assembly and the inner cavity of the cartridge filter element through the connecting hole; the top end of the cartridge filter element is sealed and connected to the inner wall of the first shell through a seal around its circumference.

[0016] Optionally, the discharge assembly includes a second shell and a second scraper; the second shell is arranged at the bottom of the first shell, and the second shell is connected to the inner cavity of the cartridge filter element; a discharge port is provided at the bottom of the second shell; the second scraper is adapted to be arranged in the second shell, and the second scraper is drivingly connected to the bottom end of the rotating shaft, and is suitable for being driven by the rotating shaft to rotate and scrape the inner side wall of the second shell.

[0017] Optionally, the second shell is configured in a conical shape, and the second scraper is adapted to the inner side wall of the second shell.

[0018] Optionally, the driving member includes a driving motor and a reducer, and the reducer is fixed to the top of the first shell through a fixed seat; the driving motor is connected to the reducer, and the output end of the driving motor is drivingly connected to the input end of the reducer; the top end of the rotating shaft passes through the output end of the reducer, is drivingly connected to the output end of the reducer, and is suitable for being driven to rotate by the reducer.

[0019] The technical solution of the utility model has the following advantages:

[0020] In the utility model, when filtering is required, the discharge assembly is closed, the slurry enters the feed cavity from the feed port on the first shell, then enters the inner cavity of the cartridge filter element from the feed cavity, then flows into the filter cavity from the inner cavity of the cartridge filter element, and then flows out from the discharge port to complete the filtration; when the cartridge filter element needs to be cleaned, the cleaning liquid is provided by connecting the external liquid supply device through the cleaning channel in the rotating shaft, and the cleaning liquid is sprayed out through the cleaning hole after passing through the cleaning channel in the rotating shaft, and the cleaning liquid is sprayed onto the inner wall of the cartridge filter element for flushing, and large particles can be flushed down under the action of flushing, and at the same time, the rotating shaft is driven to rotate by the driving member, thereby driving the first scraper to rotate in the inner cavity of the cartridge filter element to scrape and brush its inner wall, and in conjunction with the flushing of the cleaning liquid, large particles and residual slurry and other pollutants on the inner wall of the cartridge filter element are flushed down, thereby improving the cleaning effect, reducing the frequency of disassembly and cleaning of the cartridge filter element, and improving the filtration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] 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.

[0022] Figure 1 A schematic diagram of the internal structure of the filter provided by the utility model;

[0023] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0024] Figure 3 This is a schematic diagram of the overall structure of the filter provided by the utility model.

[0025] Description of reference numerals:

[0026] 1. First housing; 2. Feed inlet; 3. Discharge outlet; 4. Cartridge filter element; 5. Feed chamber; 6. Filter chamber; 7. Rotating shaft; 701. First rotating shaft; 702. Second rotating shaft; 8. First scraper; 9. Cleaning channel; 10. Cleaning hole; 11. Discharge assembly; 1101. Second housing; 1102. Second scraper; 1103. Discharge outlet; 12. One-way valve assembly; 1201. Sealing ball; 1202. Elastic member; 13. Mounting groove; 14. Adapter; 15. Drive motor; 16. Reducer; 17. Fixed seat; 18. Sealing member. DETAILED DESCRIPTION

[0027] 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.

[0028] 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 a limitation on 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.

[0029] 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.

[0030] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0031] Example 1

[0032] See also Figures 1 to 3, a filter provided in this embodiment comprises: a first housing 1, having at least one feed port 2 and a discharge port 3; a cartridge filter element 4, arranged in the housing in the vertical direction; the cartridge filter element 4 divides the inner cavity of the first housing 1 into a feed cavity 5 and a filter cavity 6 from top to bottom; the feed cavity 5 is connected to the filter cavity 6 through the cartridge filter element 4; the feed port 2 is connected to the feed cavity 5, and the discharge port 3 is connected to the filter cavity 6; a cleaning assembly comprises a rotating shaft 7, a first scraper 8 and a driving member; the rotating shaft 7 is rotatably arranged in the first housing 1 in the vertical direction; the rotating shaft 7 and the cartridge filter element 4 are coaxially penetrated in the cartridge filter element 4; the driving member is arranged in the first On the shell 1, the output end of the driving member is drivingly connected to the rotating shaft 7, suitable for driving the rotating shaft 7 to rotate in the first shell 1; the first scraper 8 is arranged on the rotating shaft 7, suitable for cooperating to scrape the inner wall of the cylindrical filter element 4; a cleaning channel 9 is arranged in the rotating shaft 7 along its axial direction; the bottom end of the cleaning channel 9 is sealed, and the top end of the cleaning channel 9 is suitable for connecting with an external liquid supply device to provide cleaning liquid; a plurality of cleaning holes 10 are arranged on the rotating shaft 7 corresponding to the inner cavity of the cylindrical filter element 4, and the cleaning holes 10 are connected with the cleaning channel 9; a discharge assembly 11 is arranged at the bottom of the first shell 1 and is connected with the inner cavity of the cylindrical filter element 4, suitable for discharging the cleaning liquid.

[0033] In this embodiment, when filtering is required, the discharge assembly 11 is closed, and the slurry enters the feed cavity 5 from the feed port 2 on the first housing 1, and then enters the inner cavity of the cartridge filter element 4 from the feed cavity 5, then flows into the filter cavity 6 from the inner cavity of the cartridge filter element 4, and then flows out from the discharge port 3 to complete the filtration; when the cartridge filter element 4 needs to be cleaned, the cleaning liquid is connected to the external liquid supply device through the cleaning channel 9 in the rotating shaft 7, and the cleaning liquid is sprayed out through the cleaning hole 10 after passing through the cleaning channel 9 in the rotating shaft 7, and the cleaning liquid is sprayed onto the inner side wall of the cartridge filter element 4 for flushing, and large particles can be flushed down under the action of flushing, and at the same time, the rotating shaft 7 is driven to rotate by the driving member, thereby driving the first scraper 8 to rotate in the inner cavity of the cartridge filter element 4 to scrape and brush its inner side wall, and cooperate with the flushing of the cleaning liquid to flush the large particles and residual slurry and other pollutants on the inner side wall of the cartridge filter element 4, thereby improving the cleaning effect, reducing the frequency of disassembly and cleaning of the cartridge filter element 4, and improving the filtration efficiency.

[0034] Example 2

[0035] As a further improvement to Example 1, Figure 1 and Figure 2 As shown, a one-way valve assembly 12 is provided in the cleaning channel 9 , and the one-way valve assembly 12 is located above the plurality of cleaning holes 10 .

[0036] It should be noted that the liquid in the one-way valve assembly 12 flows from the external liquid supply device to the cleaning hole 10 .

[0037] In this embodiment, a one-way valve assembly 12 is provided in the cleaning channel 9 to prevent the slurry from flowing back to the external liquid supply device through the cleaning hole 10 and the cleaning channel 9 during slurry filtering, thereby contaminating the cleaning liquid and causing waste of slurry.

[0038] Based on the above implementation, in a preferred implementation, Figure 2 As shown, the one-way valve assembly 12 includes a sealing ball 1201 and an elastic member 1202; a mounting groove 13 with a preset length is coaxially provided in the cleaning channel 9 along its length direction, and the diameter of the mounting groove 13 is larger than the diameter of the cleaning channel 9; the sealing ball 1201 and the elastic member 1202 are arranged in the mounting groove 13 from top to bottom; the top of the elastic member 1202 is connected to the sealing ball 1201, and the bottom of the elastic member 1202 is connected to the bottom of the mounting groove 13; the sealing ball 1201 is clearance-matched with the mounting groove 13, and the diameter of the sealing ball 1201 is larger than the diameter of the cleaning channel 9, which is suitable for abutting and sealing the cleaning channel 9 under the elastic action of the elastic member 1202.

[0039] It should be noted that the mounting groove 13 is arranged in communication with the cleaning channel 9 .

[0040] In this embodiment, a mounting groove 13 is provided on the cleaning channel 9, and an elastic member 1202 is provided in the mounting groove 13 to cooperate with the sealing ball 1201. When slurry filtering is performed, the sealing ball 1201 moves upward under the elastic action of the elastic member 1202 and abuts against the connection between the cleaning channel 9 and the mounting groove 13 to seal the cleaning channel 9 and prevent the slurry from flowing through the cleaning channel 9 to the external liquid supply device; when cleaning is performed, the cleaning liquid passes through the cleaning channel 9, and the elastic member 1202 is compressed under the action of the cleaning liquid, so that the sealing ball 1201 moves downward, and then the connection between the cleaning channel 9 and the mounting groove 13 is in an open state, and then the cleaning channel 9 is connected to the cleaning hole 10, so that the cleaning liquid can pass through the inner cavity of the cartridge filter element 4 to flush.

[0041] Specifically, the elastic member 1202 is a compression spring, which can exert an upward force on the sealing ball 1201 through elastic force, so that it can seal against the cleaning channel 9.

[0042] Specifically, one end of the elastic member 1202 abuts against the sealing ball 1201 , and the other end abuts against the bottom of the mounting groove 13 .

[0043] Based on the above implementation, in a preferred implementation, Figure 2 As shown, a chamfered structure is provided at the connection point between the cleaning channel 9 and the top of the mounting groove 13 .

[0044] In this embodiment, a chamfered structure is provided at the connection between the cleaning channel 9 and the top of the mounting groove 13 to facilitate further cooperation with the sealing ball 1201 and improve the sealing effect. During sealing, the sealing ball 1201 can abut against the groove formed by the chamfered structure to improve the sealing performance.

[0045] Based on the above implementation, in a preferred implementation, Figure 1 and Figure 2 As shown, the rotating shaft 7 includes a first rotating shaft 701 and a second rotating shaft 702 which are coaxially arranged from top to bottom. The bottom end of the first rotating shaft 701 can be slidably inserted into the top end of the second rotating shaft 702. The mounting groove 13 is arranged at the bottom end of the first rotating shaft 701, and the first rotating shaft 701 and the second rotating shaft 702 are flange-connected.

[0046] In this embodiment, the rotating shaft 7 is a split structure formed by connecting the first rotating shaft 701 and the second rotating shaft 702. At the same time, the two are connected by flanges to transmit torque and facilitate disassembly. The first rotating shaft 701 is inserted at the top of the second rotating shaft 702 for easy installation and disassembly, and the one-way valve assembly 12 is conveniently set in the installation groove 13 for easy maintenance.

[0047] Specifically, an extension portion is convexly provided at the bottom of the first rotating shaft 701, such as Figure 2 As shown, the installation groove 13 is arranged in the extension part, and the top of the second rotating shaft 702 is recessed with an assembly groove adapted to the size of the extension part. During installation, after the one-way valve assembly 12 is arranged in the installation groove 13, the extension part is slidably inserted into the assembly groove, and then the first rotating shaft 701 and the second rotating shaft 702 are flange-connected, which is convenient for installation and maintenance.

[0048] Based on the above implementation, in a preferred implementation, Figure 1 and Figure 3 As shown, the cleaning assembly also includes an adapter 14, which is rotatably connected to the top of the rotating shaft 7, and the inner cavity of the adapter 14 is connected to the top of the cleaning channel 9; the rotating shaft 7 is suitable for connecting to an external liquid supply device through the adapter 14.

[0049] It should be noted that the adapter 14 is provided with a connection port suitable for connecting to an external liquid supply device, and the connection port is communicated with the inner cavity of the adapter 14 .

[0050] In this embodiment, the rotating shaft 7 is connected to the external liquid supply device through the adapter 14, so that when the driving member drives the rotating shaft 7 to rotate, the adapter 14 and the rotating shaft 7 can rotate relative to each other, so that the adapter 14 can remain stationary while providing cleaning liquid to the cleaning channel 9, thereby ensuring the stability of the external liquid supply device when providing cleaning liquid to the cleaning channel 9.

[0051] Based on the above implementation, in a preferred implementation, Figure 1 As shown, the bottom of the cartridge filter element 4 is sealed and connected to the bottom of the inner cavity of the first shell 1; a connecting hole is provided at the bottom of the first shell 1 corresponding to the inner cavity of the cartridge filter element 4, which is suitable for connecting the discharge assembly 11 and the inner cavity of the cartridge filter element 4 through the connecting hole; the top end of the cartridge filter element 4 is sealed and connected to the inner wall of the first shell 1 through a seal 18 around its circumference.

[0052] In this embodiment, the cartridge filter element 4 is fixed and sealed by being sealed in the first housing 1, and at the same time, the bottom of the cartridge filter element 4 is sealed with the first housing 1, so that the feed port 2 and the discharge port 3 are separated by the cartridge filter element 4, so as to ensure that when feeding, the slurry is filtered through the cartridge filter element 4 and then flows into the filter cavity 6, and finally discharged through the discharge port 3. At the same time, it is connected with the discharge assembly 11 through the connecting hole at the bottom of the first housing 1, so that when cleaning, the cleaning liquid carrying pollutants is discharged directly from the inner cavity of the cartridge filter element 4 through the connecting hole to the discharge assembly 11, thereby improving the cleaning effect.

[0053] Specifically, Figure 1 As shown, the seal 18 is a sealing plate, the peripheral side of the sealing plate is sealed with the inner wall of the first shell 1, the sealing plate is provided with an opening adapted to be installed with the top end of the cartridge filter element 4, and the top end of the cartridge filter element 4 is sealed in the opening.

[0054] Based on the above implementation, in a preferred implementation, Figure 1 As shown, the discharge assembly 11 includes a second shell 1101 and a second scraper 1102; the second shell 1101 is arranged at the bottom of the first shell 1, and the second shell 1101 is connected to the inner cavity of the cartridge filter element 4; a discharge port 1103 is provided at the bottom of the second shell 1101; the second scraper 1102 is adapted to be arranged in the second shell 1101, and the second scraper 1102 is drivingly connected to the bottom end of the rotating shaft 7, suitable for being driven by the rotating shaft 7 to rotate and scrape the inner wall of the second shell 1101.

[0055] It should be noted that the bottom end of the rotating shaft 7 passes through the first housing 1 and extends into the second housing 1101 .

[0056] In this embodiment, after cleaning the cartridge filter element 4, the cleaning liquid flows into the second shell 1101, and the second scraper 1102 in the second shell 1101 rotates with the rotating shaft 7 to scrape the inner wall of the second shell 1101, thereby removing particles on the inner wall of the second shell 1101 and discharging them from the discharge port 1103, thereby improving the cleaning effect.

[0057] Specifically, the second shell 1101 is flange-connected to the first shell 1 .

[0058] Based on the above implementation, in a preferred implementation, Figure 1 and Figure 3 As shown, the second shell 1101 is arranged in a conical shape, and the second scraper 1102 is adapted to the inner wall of the second shell 1101 .

[0059] It should be noted that the second scraper 1102 is adapted to the inner wall of the second shell 1101 to be arranged in a conical shape.

[0060] In this embodiment, the second shell 1101 is configured in a conical shape to facilitate the outflow of the cleaning liquid. At the same time, the second scraper 1102 adapted to the inner wall of the second shell 1101 is used for scraping, thereby improving the cleaning effect.

[0061] Based on the above implementation, in a preferred implementation, Figure 1 and Figure 3 As shown, the driving member includes a driving motor 15 and a reducer 16, and the reducer 16 is fixed to the top of the first shell 1 through a fixing seat 17; the driving motor 15 is connected to the reducer 16, and the output end of the driving motor 15 is drivingly connected to the input end of the reducer 16; the top end of the rotating shaft 7 passes through the output end of the reducer 16, and is drivingly connected to the output end of the reducer 16, and is suitable for being driven to rotate by the reducer 16.

[0062] In this embodiment, the stability of the installation is improved by the fixing seat 17, and the output torque of the driving motor 15 is increased by the reducer 16, so as to facilitate the rotation of the rotating shaft 7. When cleaning, the driving motor 15 drives the rotating shaft 7 to rotate through the reducer 16, and the top of the rotating shaft 7 passes through the reducer 16, so as to facilitate the setting of the adapter 14 and the connection of the external liquid supply equipment.

[0063] Specifically, the discharge port 1103 is provided with a switch valve for easy opening and closing.

[0064] Specifically, the number of the feed ports 2 and the discharge ports 3 is not specifically limited, and the number of the feed ports 2 and the discharge ports 3 can be selected according to actual conditions. In this embodiment, preferably, two feed ports 2 and one discharge port 3 are provided.

[0065] Specifically, the shape of the first scraper 8 is adapted to the inner wall of the cartridge filter element 4 , so as to facilitate scraping and cleaning the inner wall of the cartridge filter element 4 .

[0066] Specifically, the number of the first scrapers 8 is not specifically limited, and the number of the first scrapers 8 can be optionally 1, 2, 3 or more, and the plurality of first scrapers 8 are evenly arranged around the axial direction of the rotating shaft 7 .

[0067] The specific working principle of the filter provided in this embodiment is as follows: when filtering is required, the discharge port 1103 is closed, the slurry enters the feed cavity 5 from the feed port 2 on the first shell 1, and then enters the inner cavity of the cartridge filter element 4 from the feed cavity 5, and then flows into the filter cavity 6 after being filtered by the filter screen of the cartridge filter element 4 from the inner cavity of the cartridge filter element 4, and then flows out from the discharge port 3 to complete the filtration; when the cartridge filter element 4 needs to be cleaned, the rotating shaft 7 is connected to the external liquid supply device through the adapter 14, so that the cleaning channel 9 in the rotating shaft 7 is connected to the external liquid supply device to provide cleaning liquid, and the cleaning is completed through the rotating shaft 7. The cleaning channel 9 in the shaft 7 and the one-way valve assembly 12 are then sprayed out through the cleaning hole 10, and the cleaning spray is sprayed onto the inner wall of the cartridge filter element 4 for flushing. Large particles can be flushed down under the action of flushing. At the same time, the driving motor 15 drives the rotating shaft 7 to rotate through the reducer 16, thereby driving the first scraper 8 to rotate in the inner cavity of the cartridge filter element 4 to scrape and brush its inner wall. With the flushing of the cleaning liquid, the particles and residual slurry and other pollutants on the inner wall of the cartridge filter element 4 are flushed down, thereby improving the cleaning effect, reducing the frequency of disassembly and cleaning of the cartridge filter element 4, and improving the filtration efficiency. The existing filter cleaning method has a poor cleaning effect, and there is still a large particle in the slurry blocking the mesh of the filter element, affecting the filtration efficiency, and the filter element needs to be shut down and removed for cleaning. Technical problems.

[0068] 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: include: A first housing (1) having at least one feed port (2) and a discharge port (3); A cartridge filter element (4) is arranged in the housing in a vertical direction; the cartridge filter element (4) divides the inner cavity of the first housing (1) into a feed cavity (5) and a filter cavity (6) from top to bottom; the feed cavity (5) is connected to the filter cavity (6) through the cartridge filter element (4); the feed port (2) is connected to the feed cavity (5), and the discharge port (3) is connected to the filter cavity (6); A cleaning assembly comprises a rotating shaft (7), a first scraper (8) and a driving member; the rotating shaft (7) is rotatably arranged in the first housing (1) along a vertical direction; the rotating shaft (7) and the cartridge filter element (4) are coaxially arranged in the cartridge filter element (4); the driving member is arranged on the first housing (1), and the output end of the driving member is drivingly connected to the rotating shaft (7), suitable for driving the rotating shaft (7) to rotate in the first housing (1); the first scraper (8) is arranged on the rotating shaft (7), suitable for scraping the inner side wall of the cartridge filter element (4); a cleaning channel (9) is arranged in the rotating shaft (7) along its axial direction; the bottom end of the cleaning channel (9) is sealed, and the top end of the cleaning channel (9) is suitable for communicating with an external liquid supply device to provide cleaning liquid; a plurality of cleaning holes (10) are arranged on the rotating shaft (7) corresponding to the inner cavity of the cartridge filter element (4), and the cleaning holes (10) are communicated with the cleaning channel (9); A discharge assembly (11) is arranged at the bottom of the first housing (1) and is in communication with the inner cavity of the cartridge filter element (4), and is suitable for discharging cleaning liquid.

2. The filter according to claim 1, characterized in that A one-way valve assembly (12) is provided in the cleaning channel (9), and the one-way valve assembly (12) is located above the plurality of cleaning holes (10).

3. The filter according to claim 2, characterized in that The one-way valve assembly (12) comprises a sealing ball (1201) and an elastic member (1202); a mounting groove (13) of a preset length is coaxially arranged in the cleaning channel (9) along its length direction, and the diameter of the mounting groove (13) is larger than the diameter of the cleaning channel (9); the sealing ball (1201) and the elastic member (1202) are arranged in the mounting groove (13) in sequence from top to bottom; the top of the elastic member (1202) is connected to the sealing ball (1201), and the bottom of the elastic member (1202) is connected to the bottom of the mounting groove (13); the sealing ball (1201) and the mounting groove (13) are clearance-matched, and the diameter of the sealing ball (1201) is larger than the diameter of the cleaning channel (9), so that the sealing ball (1201) is suitable for abutting and sealing the cleaning channel (9) under the elastic action of the elastic member (1202).

4. The filter according to claim 3, characterized in that A chamfered structure is provided at the connection point between the cleaning channel (9) and the top of the mounting groove (13).

5. The filter according to claim 3, characterized in that The rotating shaft (7) comprises a first rotating shaft (701) and a second rotating shaft (702) which are coaxially arranged in sequence from top to bottom, the bottom end of the first rotating shaft (701) can be slidably inserted into the top end of the second rotating shaft (702), the mounting groove (13) is arranged at the bottom end of the first rotating shaft (701), and the first rotating shaft (701) and the second rotating shaft (702) are flange-connected.

6. The filter according to any one of claims 1 to 5, characterized in that: The cleaning assembly further comprises an adapter (14), the adapter (14) being rotatably connected to the top end of the rotating shaft (7), and the inner cavity of the adapter (14) being in communication with the top end of the cleaning channel (9); the rotating shaft (7) is suitable for being in communication with an external liquid supply device via the adapter (14).

7. The filter according to claim 1, characterized in that The bottom of the cartridge filter element (4) is sealedly connected to the bottom of the inner cavity of the first housing (1); a connecting hole is provided at the bottom of the first housing (1) corresponding to the inner cavity of the cartridge filter element (4), suitable for connecting the discharge assembly (11) and the inner cavity of the cartridge filter element (4) through the connecting hole; the top end of the cartridge filter element (4) is sealedly connected to the inner wall of the first housing (1) through a sealing member (18) around its circumference.

8. The filter according to claim 1, characterized in that The discharge assembly (11) comprises a second shell (1101) and a second scraper (1102); the second shell (1101) is arranged at the bottom of the first shell (1), and the second shell (1101) is connected to the inner cavity of the cartridge filter element (4); a discharge port (1103) is provided at the bottom of the second shell (1101); the second scraper (1102) is adapted to be arranged in the second shell (1101), and the second scraper (1102) is drivingly connected to the bottom end of the rotating shaft (7), and is suitable for being driven by the rotating shaft (7) to rotate and scrape the inner side wall of the second shell (1101).

9. The filter according to claim 8, characterized in that The second shell (1101) is arranged in a conical shape, and the second scraper (1102) is adapted to the inner wall of the second shell (1101).

10. The filter according to claim 1, characterized in that The driving member comprises a driving motor (15) and a reducer (16); the reducer (16) is fixed to the top of the first housing (1) via a fixing seat (17); the driving motor (15) is connected to the reducer (16), and the output end of the driving motor (15) is drivingly connected to the input end of the reducer (16); the top end of the rotating shaft (7) passes through the output end of the reducer (16), is drivingly connected to the output end of the reducer (16), and is suitable for being driven to rotate by the reducer (16).

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