A kind of filtering equipment for water battery production

Abstract

The invention discloses a filtering device for water-based battery production, which mainly comprises: an upper shell body; a multi-chamber filtering composite structure and a pre-filtering porous plate in the upper shell body; a lower conical water purification chamber with a filtering support assembly; the multi-chamber filtering composite structure comprises: a square frame with a hollow frame ventilation chamber, an inverted V-shaped diversion guide groove, a diversion support baffle with a first gas channel, an auxiliary diversion support baffle with a second gas channel, and a grid filtering unit; a plurality of first jet holes are evenly distributed on the side surface of the diversion support baffle; a plurality of second jet holes are evenly distributed on the side surface of the auxiliary diversion support baffle; the diversion guide groove is provided with an upper row of steady flow holes and a lower row of steady flow holes; multi-stage filtration with different flow rates and filtering degrees is realized, the flow distribution is optimized, and the service life of the filter medium is extended, and the stability and consistency of the entire filtering system are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of water treatment, and in particular to filtering equipment for producing water-based batteries. Background Art

[0002] A liquid filter is a device used to remove impurities and solid particles from liquids. It usually includes a filter medium and a filter structure. Its function is to separate impure substances from the liquid through the filter medium, thereby improving the purity and quality of the liquid. Liquid filter devices are used in various occasions, including industrial production, water treatment, food processing, pharmaceuticals, chemicals and other fields. In the manufacture of aqueous batteries, the production of electrode materials requires multiple filtrations. Some insoluble products and some impurities will be generated during the synthesis of electrode materials, which require filtration equipment for filtration. In addition, the electrode material needs to be made into a slurry before coating the electrode sheet, and filtration equipment is also required to ensure the uniformity and stability of the slurry to prevent large particles or impurities from affecting the coating effect and battery performance.

[0003] In a conventional liquid filtering device, the liquid to be filtered usually directly enters from the upper end of the filtering device, and the liquid filtered by the filter medium flows out from the outlet at the lower end of the filtering device; and in this filtering process, since no auxiliary components or specific paths are set in the filtering device to divert the filtered liquid, the filtered liquid will have lateral flow, longitudinal flow, circular flow or rotational flow trajectories on the inner wall surface of the device or the surface of the filter medium; although these irregular flow trajectories make the contact between the liquid and the filter medium more complete, which helps to improve the filtering efficiency; but the existence of these flows also makes the liquid flow in the filtering device more complicated and changeable, forming a complex flow trajectory, thereby causing the liquid flow to be unstable, and ultimately affecting the stability and operation effect of the filtering device;

[0004] On the other hand, due to the lack of diversion treatment, the liquid is prone to form local pressure differences on the surface of the filter medium, resulting in excessive pressure in some areas of the filter medium, which is prone to clogging, thereby affecting the filtering effect and stable operation of the equipment.

[0005] Therefore, the improvement direction of the present invention is to improve the design of the filter component inside the filter device for carrying liquid and filter medium, introduce more efficient filter auxiliary components, optimize the flow trajectory of the liquid, so as to improve the filtration efficiency and the stability of the equipment. Summary of the invention

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A filtering device for aqueous battery production, mainly comprising: an upper shell body, a multi-chamber filtering composite structure and a pre-filtering porous plate in the upper shell body, and a lower conical water purification chamber with a filtering support assembly;

[0008] Further, the lower conical water purification chamber is sealed and connected to the bottom of the upper shell body, the top of the upper shell body is provided with an inlet for introducing raw water to be filtered, and the bottom of the lower conical water purification chamber is provided with a clean water outlet for flowing out the purified water;

[0009] Further, the multi-chamber filtration composite structure is connected and fixed to the lower surface of the pre-filtration porous plate;

[0010] Furthermore, the filter support assembly mainly includes: a metal support grid, a filter medium support porous plate, and an anti-blocking filter screen arranged in sequence from bottom to top in the direction of the upper shell body;

[0011] Further, the multi-chamber filter composite structure mainly includes: a square frame having a hollow frame ventilation chamber, a plurality of inverted V-shaped flow diversion guide grooves, a plurality of flow diversion support baffles, a plurality of auxiliary flow diversion support baffles, and a plurality of mesh filter units;

[0012] Furthermore, each flow-dividing support baffle has a first gas channel with a hollow structure inside, that is, there are multiple first gas channels; each auxiliary flow-dividing support baffle has a second gas channel with a hollow structure inside, that is, there are multiple second gas channels; each first gas channel is connected to the frame ventilation chamber; each second gas channel is connected to the frame ventilation chamber;

[0013] Furthermore, a plurality of first jet holes are evenly distributed on the side surface of the flow splitter support baffle; a plurality of second jet holes are evenly distributed on the side surface of the auxiliary flow splitter support baffle; and a plurality of upper row stabilizing holes and a plurality of lower row stabilizing holes are provided in the flow splitter guide groove;

[0014] Furthermore, the flow diversion guide groove and the flow diversion support partition are perpendicular to each other, forming a grid structure for accommodating the filter material, and each grid is a grid filter unit; a plurality of auxiliary flow diversion support partitions are evenly distributed between two adjacent flow diversion support partitions; and the plurality of auxiliary flow diversion support partitions are arranged parallel to each other and at intervals;

[0015] Furthermore, the auxiliary flow diversion support baffle and the flow diversion support baffle are parallel to each other; and the auxiliary flow diversion support baffle and the flow diversion guide groove are perpendicular to each other.

[0016] Furthermore, the four side walls of the square frame are all hollow structures; the hollow structures of the four side walls are connected to each other to form a frame ventilation chamber; the frame ventilation chamber is connected to an external air source through an air supply hole;

[0017] Furthermore, a notch matched with the square frame is provided on the inner wall of the upper shell body, so that the square frame is just embedded therein to form a sealed connection.

[0018] Furthermore, the height of the diversion support baffle in the vertical direction is h2, the height of the square frame is H, h2=H; the height of the auxiliary diversion support baffle in the vertical direction is h1, h1=(1 / 2~1 / 3)h2;

[0019] Furthermore, the diameter of the second jet hole is the same as the diameter of the first jet hole.

[0020] Furthermore, the two ends of the diversion guide groove in the longitudinal direction are respectively connected to the first side wall and the second side wall of the square frame to form a closed state; the diversion guide groove forms an inverted V shape in the transverse direction;

[0021] Furthermore, the height of the diversion guide groove in the vertical direction is h3, where h3=H.

[0022] Furthermore, the diameter of the lower row of steady flow holes is greater than the diameter of the upper row of steady flow holes; the number of the upper row of steady flow holes and the number of the lower row of steady flow holes are both multiple; and the number of the lower row of steady flow holes is 2 to 3 times the number of the upper row of steady flow holes;

[0023] Further, in the longitudinal direction, a single lower row of steady flow holes is located at the midpoint between two adjacent upper row of steady flow holes;

[0024] Furthermore, the vertical distance between the upper row of steady flow holes and the lower surface of the pre-filtration porous plate is h4, h4=30mm~80mm; the vertical distance between the lower row of steady flow holes and the upper row of steady flow holes is h5, h5=20mm~70mm.

[0025] Furthermore, a plurality of pre-filtering holes are evenly arranged on the pre-filtering porous plate; the pre-filtering holes include: pre-filtering upper holes, pre-filtering lower holes, and pre-filtering hole annular step surfaces;

[0026] Furthermore, the pre-filtration upper section holes are close to the upper surface of the pre-filtration porous plate, and the pre-filtration lower section holes are close to the lower surface of the pre-filtration porous plate; the diameter of the pre-filtration lower section holes is larger than the diameter of the pre-filtration upper section holes; the pre-filtration upper section holes and the pre-filtration lower section holes are located on the same axis;

[0027] Furthermore, a step plate structure is formed between the upper pre-filter hole and the lower pre-filter hole, namely, an annular step surface of the pre-filter through hole; the inner ring diameter of the annular step surface of the pre-filter through hole is the same as the diameter of the upper pre-filter hole; the outer ring diameter of the annular step surface of the pre-filter through hole is the same as the diameter of the lower pre-filter hole.

[0028] Furthermore, a plurality of microporous filtration holes are provided on the filter medium supporting porous plate; the microporous filtration holes also include: microporous filtration upper holes, microporous filtration lower holes, and microporous filtration hole annular step surfaces; a microporous filtration hole annular step surfaces are formed between the microporous filtration upper holes and the microporous filtration lower holes; the microporous filtration upper holes are close to the upper surface of the filter medium supporting porous plate, and the microporous filtration lower holes are close to the lower surface of the filter medium supporting porous plate; the diameter of the microporous filtration lower holes is smaller than the diameter of the microporous filtration upper holes.

[0029] Furthermore, the metal support grid is a support frame of a mesh structure, which is connected and fixed to the protruding edge of the lower conical water purification chamber, and is used to further provide support for the structure of the multi-chamber filtration composite structure;

[0030] Furthermore, the anti-blocking filter screen, the metal support grid and the filter medium support porous plate are all detachably connected.

[0031] The beneficial effects of the present invention are as follows:

[0032] The present invention proposes a filtering device for aqueous battery production, which forms a plurality of grid filtering units by improving filtering components, including a diverter support baffle and an inverted V-shaped diverter guide groove, so as to control the lateral movement of the liquid and avoid instability; an auxiliary diverter support baffle is added between two adjacent diverter support baffles, and a plurality of jet holes are arranged at different heights of the diverter support baffle and the auxiliary diverter support baffle to introduce airflow, so as to cause the liquid to form two different flow rates, thereby improving the filtering efficiency and the degree of mixing; and the staggered and different-sized steady flow holes on the diverter guide groove make the liquid flow through the filtering material more concentratedly, reduce the accumulation of particles on the surface of the filtering material and cause blockage, optimize the flow trajectory of the liquid, and increase the probability of impurities being trapped; compared with the existing filtering device without any auxiliary components, the present application realizes multi-stage filtration with different flow rates and filtering degrees, optimizes the flow distribution, thereby prolonging the service life of the filtering material and improving the stability and consistency of the entire filtering system. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic diagram of the overall structure of a filtering device for producing aqueous batteries according to the present invention.

[0034] Figure 2 It is a three-dimensional schematic diagram of a multi-chamber filtration composite structure of a filtration device for aqueous battery production according to the present invention.

[0035] Figure 3 It is a schematic structural diagram of the filter support assembly and the lower conical water purification tank of the present invention.

[0036] Figure 4 It is a schematic diagram of the transverse structure of the multi-chamber filtration composite structure, the pre-filtration porous plate, and the filtration support assembly of the present invention.

[0037] Figure 5 It is a schematic diagram of the internal longitudinal structure of the multi-chamber filtration composite structure of the present invention.

[0038] In the figure: 1, shell body; 11, raw water inlet; 2, lower conical water purification chamber; 21, purified water outlet; 22, protruding edge; 3, multi-chamber filtration composite structure; 31, square frame; 31a, first side wall; 31b, second side wall; 311, frame ventilation chamber; 32, diversion guide groove; 321, upper row of steady flow holes; 322, lower row of steady flow holes; 33, diversion support baffle; 331, first gas channel; 332, first jet hole; 34, auxiliary diversion support baffle; 341, second gas Channel; 342, second jet hole; 35, mesh filter unit; 4, pre-filtration porous plate; 41, pre-filtration through hole; 411, pre-filtration upper hole; 412, pre-filtration lower hole; 413, pre-filtration through hole annular step surface; 5, filtration support assembly; 51, anti-blocking filter net; 52, filter medium support porous plate; 523, microporous filtration through hole; 5231, microporous filtration upper hole; 5232, microporous filtration lower hole; 5233, microporous filtration through hole annular step surface; 53, metal support grid. DETAILED DESCRIPTION

[0039] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0040] For ease of explanation, the X, Y, and Z directions are defined as three directions perpendicular to each other in space: the X and Y directions are both directions in the horizontal plane, and the Z direction is the vertical direction; in the following description, X is the horizontal direction, Y is the longitudinal direction, and Z is the vertical direction. The size, number, and distribution of the holes in the figure are only for illustration and are not fully shown.

[0041] Please refer to the attached Figure 1-5 , a filtering device for aqueous battery production, mainly comprising: an upper shell body 1, a multi-chamber filtering composite structure 3 and a pre-filtering porous plate 4 in the upper shell body 1, and a lower conical water purification chamber 2 with a filtering support assembly 5;

[0042] The lower conical water purification chamber 2 is sealed and connected to the bottom of the upper shell body 1. The top of the upper shell body 1 is provided with an inlet 11 for introducing raw water to be filtered, and the bottom of the lower conical water purification chamber 2 is provided with a clean water outlet 21 for flowing out the purified water; Figure 1 As shown;

[0043] The multi-chamber filtration composite structure 3 is connected and fixed to the lower surface of the pre-filtration porous plate 4;

[0044] The filter support assembly 5 mainly includes: a metal support grid 53, a filter medium support porous plate 52, and an anti-blocking filter screen 51 arranged in sequence from bottom to top in the direction of the upper shell body 1;

[0045] The multi-chamber filter composite structure 3 mainly includes: a square frame 31 having a hollow frame ventilation chamber 311, a plurality of inverted V-shaped flow diversion guide grooves 32, a plurality of flow diversion support baffles 33, a plurality of auxiliary flow diversion support baffles 34, and a plurality of mesh filter units 35;

[0046] The interior of each flow dividing support baffle 33 is a first gas channel 331 of a hollow structure; that is, there are also multiple first gas channels 331;

[0047] Each auxiliary flow dividing support baffle 34 has a second gas channel 341 with a hollow structure inside; that is, there are also multiple second gas channels 341;

[0048] Each first gas channel 331 is in communication with the frame ventilation chamber 311; each second gas channel 341 is in communication with the frame ventilation chamber 311;

[0049] A plurality of first jet holes 332 are evenly distributed on the side surface of the flow dividing support baffle 33;

[0050] A plurality of second jet holes 342 are evenly distributed on the side surface of the auxiliary flow splitting support baffle 34;

[0051] The flow distribution guide groove 32 is provided with a plurality of upper row flow stabilizing holes 321 and a plurality of lower row flow stabilizing holes 322;

[0052] The diversion guide groove 32 and the diversion support partition 33 are perpendicular to each other, forming a grid structure for accommodating filter materials, and each grid is a grid filter unit 35; the grid filter unit 35 temporarily restricts the continuously entering liquid to be filtered within a plurality of grid filter units 35 to control the lateral movement of the liquid to be filtered in the filter device, ensuring that the liquid to be filtered can fully contact the filter medium in the grid filter unit 35, while preventing excessive lateral flow in the filter device from causing instability of the filter device.

[0053] The plurality of mesh filter units 35 contain filter materials, such as fiber balls, activated carbon, and the like.

[0054] A plurality of auxiliary flow-dividing support baffles 34 are evenly distributed between two adjacent flow-dividing support baffles 33; the plurality of auxiliary flow-dividing support baffles 34 are arranged parallel to each other and at intervals;

[0055] The auxiliary flow-dividing support baffle 34 and the flow-dividing support baffle 33 are parallel to each other; and the auxiliary flow-dividing support baffle 34 and the flow-dividing guide groove 32 are perpendicular to each other.

[0056] Further, as attached Figure 2 As shown, the four side walls of the square frame 31 are all hollow structures; the hollow structures of the four side walls are connected to each other to form a frame ventilation chamber 311; the frame ventilation chamber 311 is connected to the external air source through the air supply hole;

[0057] A notch matched with the square frame 31 is provided on the inner wall of the upper shell body 1, so that the square frame 31 is just embedded therein to form a sealed connection, thereby preventing liquid from bypassing the filter support assembly 5 and leaking to affect the filtering effect.

[0058] As attached Figure 5 As shown, the height of the diversion support baffle 33 in the vertical direction is h2, the height of the square frame 31 is H, and h2=H;

[0059] The height of the auxiliary flow dividing support baffle 34 in the vertical direction is h1, where h1=(1 / 2~1 / 3)h2.

[0060] The auxiliary flow-dividing support baffle 34 blocks the flow of the liquid, causing the liquid to form a certain resistance below the auxiliary flow-dividing support baffle 34, thus forming two different flow velocities, i.e., the flow velocity between two adjacent auxiliary flow-dividing support baffles 34 is slower, and the flow velocity below the auxiliary flow-dividing support baffle 34 is faster; the slower flow velocity above and the faster flow velocity below increase the turbulence of the water flow, thereby improving the filtration efficiency and the mixing degree;

[0061] The plurality of flow-dividing support partitions 33 are also used to separate the filter material and provide support and fixation therefor, thereby ensuring the stability and uniformity of the filter material;

[0062] An auxiliary diversion support baffle 34 is arranged between two adjacent diversion support baffles 33, which further enhances the overall structural stability of the filter device; the upper filter medium is divided into multiple levels in the vertical direction, so that the liquid encounters more resistance and contact when passing through filter particles of different levels, thereby changing the flow path of the liquid in the filter device.

[0063] Further, the diameter of the second jet hole 342 is the same as the diameter of the first jet hole 332, and can be 3 mm to 10 mm.

[0064] The number of the first jet holes 332 and the second jet holes 342 can be set according to actual needs; optionally, the number of the first jet holes 332 is 3 to 10; the number of the second jet holes 342 is 2 to 4;

[0065] According to specific filtering requirements, the distribution of the first jet holes 332 and the second jet holes 342 may adopt different geometric shapes, such as triangles, quadrilaterals, etc.;

[0066] The flow splitter support baffle 33 and the auxiliary flow splitter support baffle 34 can be made of metal material, such as stainless steel plate.

[0067] The first jet hole 332 introduces airflow, and the flow direction of these airflows is perpendicular to the flow direction of the liquid, and their flow speeds are also different. Therefore, the airflow will exert force on the liquid near the first jet hole 332, causing the flow speed and flow direction of the local liquid to change. This disturbance gradually increases and is likely to form local turbulence; and the second jet hole 342 further interferes with the liquid near the top of the entire mesh filter unit 35 to form turbulence, further enhancing the mixing effect of gas and liquid, helping to disperse and destroy larger suspended matter groups, making them easier to be captured by the filter medium; thereby improving the uniformity and stability of liquid flow.

[0068] Furthermore, the two ends of the diverter guide groove 32 in the longitudinal direction are respectively connected to the first side wall 31a and the second side wall 31b of the square frame 31 to form a closed state; the diverter guide groove 32 forms an inverted V shape in the transverse direction;

[0069] The height of the flow dividing guide groove 32 in the vertical direction is h3, where h3=H.

[0070] Compared with ordinary plates or grooves, the inverted V-shaped diversion guide groove 32 provides support for the diversion support partition 33 and the filter material, further improving the stability and reliability of the entire structure of the multi-chamber filter composite structure 3.

[0071] Furthermore, the diameter of the lower row of steady flow holes 322 is greater than the diameter of the upper row of steady flow holes 321; optionally, the diameter of the upper row of steady flow holes 321 is 1mm~5mm; the diameter of the lower row of steady flow holes 322 is 8mm~10mm. The liquid to be filtered enters from the upper raw water inlet 11, with a fast flow speed and a high pressure. The diameter of the upper row of steady flow holes 321 is smaller, which limits the flow speed of the liquid in the upper filter material, prompting the liquid to pass through the filter material more concentratedly, accelerating the process of suspended particles being intercepted or blocked, and reducing the accumulation of particles on the surface of the filter material to cause blockage; while the liquid to be filtered continues to flow downward, the diameter of the lower row of steady flow holes 322 is larger, reducing the flow resistance of the liquid, ensuring smooth flow, and making the liquid evenly distributed and flowing in the multi-chamber filter composite structure 3;

[0072] The number of the upper row of steady flow holes 321 and the number of the lower row of steady flow holes 322 are both multiple; and the number of the upper row of steady flow holes 321 is 2 to 3 times the number of the lower row of steady flow holes 322;

[0073] In the longitudinal direction, the single lower row of steady flow holes 322 is located at the midpoint between two adjacent upper row of steady flow holes 321; when the liquid passes through the two adjacent upper row of steady flow holes 321, it is attracted by the single lower row of steady flow holes 322, so that the liquid flows through the filter material more concentratedly, the flow rate will also increase, and the probability of retaining particulate matter will be improved.

[0074] like Figure 4 As shown, the distance between the upper row of steady flow holes 321 and the lower surface of the pre-filtration porous plate 4 in the vertical direction is h4, h4=30mm~80mm; the distance between the lower row of steady flow holes 322 and the upper row of steady flow holes 321 in the vertical direction is h5, h5=20mm~70mm.

[0075] The flow distribution guide groove 32 is made of metal materials such as stainless steel and aluminum alloy.

[0076] Furthermore, a plurality of pre-filtering holes 41 are evenly arranged on the pre-filtering porous plate 4; the pre-filtering holes 41 include: a pre-filtering upper section hole 411, a pre-filtering lower section hole 412, and a pre-filtering hole annular step surface 413;

[0077] The upper pre-filtration hole 411 is close to the upper surface of the pre-filtration porous plate 4, and the lower pre-filtration hole 412 is close to the lower surface of the pre-filtration porous plate 4; the diameter of the lower pre-filtration hole 412 is larger than the diameter of the upper pre-filtration hole 411; the upper pre-filtration hole 411 and the lower pre-filtration hole 412 are located on the same axis;

[0078] As attached Figure 4 As shown, a step plate structure is formed between the pre-filter upper hole 411 and the pre-filter lower hole 412, namely, the pre-filter through hole annular step surface 413; the inner ring diameter of the pre-filter through hole annular step surface 413 is the same as the diameter of the pre-filter upper hole 411; the outer ring diameter of the pre-filter through hole annular step surface 413 is the same as the diameter of the pre-filter lower hole 412.

[0079] The pre-filtration porous plate 4 is used for preliminary filtration; when the liquid passes through the pre-filtration through hole 41, the channel diameter expands, gradually reducing the flow rate of the liquid, increasing the time the liquid stays on the pre-filtration porous plate 4, and helping to remove large particle impurities; thereby reducing the filtration burden of the multi-chamber filtration composite structure 3 located below it.

[0080] In practical applications, the diameter of the pre-filtering through hole 41 should be determined according to the diameter of the particles that may exist in the liquid to be filtered.

[0081] Furthermore, a plurality of microporous filtration through holes 523 are provided on the filter medium supporting porous plate 52; the filter medium supporting porous plate 52 intercepts those fine particles that still exist after filtering, thereby further improving the purity of the filtered liquid;

[0082] The microporous filtration through hole 523 is similar to the pre-filtration through hole 41 in that the microporous filtration through hole 523 also includes a microporous filtration upper hole 5231, a microporous filtration lower hole 5232, and a microporous filtration through hole annular step surface 5233; a microporous filtration through hole annular step surface 5233 is formed between the microporous filtration upper hole 5231 and the microporous filtration lower hole 5232; the microporous filtration upper hole 5231 is close to the upper surface of the filter medium supporting porous plate 52, and the microporous filtration lower hole 5232 is close to the lower surface of the filter medium supporting porous plate 52;

[0083] The microporous filtration through hole 523 is different from the pre-filtration through hole 41 in that the diameter of the microporous filtration lower section hole 5232 is smaller than the diameter of the microporous filtration upper section hole 5231. When the liquid passes through the microporous filtration through hole 523, the reduction in the diameter of the channel will increase the flow pressure of the liquid, resulting in a decrease in the flow rate, which can prolong the contact time between the fluid and the filter medium, thereby more thoroughly removing the residual tiny particles.

[0084] The diameter of the microporous filter through hole 523 should be selected according to factors such as the size of the filter material particles to prevent the filter material particles from leaking out or clogging. The filter medium supporting porous plate 52 has sufficient strength and stability to withstand the water flow pressure and the weight of the filter medium and maintain the integrity of the structure; it can be made of stainless steel, polytetrafluoroethylene, glass fiber reinforced plastic, etc.

[0085] The filter medium supporting porous plate 52 provides support for the filter material filled in the square frame 31 above it, ensuring the structural integrity of the square frame 31 to prevent the particles of the filter material from overflowing or sinking.

[0086] The liquid to be filtered passes through the pre-filtration porous plate 4, the multi-chamber filtration composite structure 3, and the filter medium supporting porous plate 52 in sequence, experiencing different flow rates and filtration degrees, forming a multi-stage filtration process, optimizing the flow distribution, thereby extending the service life of the filter material, and further improving the stability and consistency of the entire filtration system.

[0087] Since the filter material particles are in direct contact with the filter medium supporting porous plate 52, the filter material particles may not only get stuck in the microporous filter through hole 523 and cause blockage, but may also move laterally, causing the filter material particles in contact with the filter medium supporting porous plate 52 to move upward in sequence, causing a dramatic change in the water flow. Therefore, an anti-blocking filter screen 51 is set between the filter medium supporting porous plate 52 and the multi-chamber filter composite structure 3 to further prevent blockage of filter material particles such as fiber balls and activated carbon, and limit the lateral displacement of the filter material when it contacts the anti-blocking filter screen 51; the anti-blocking filter screen 51 can be made of resin or metal material to improve its durability and effectiveness.

[0088] The metal support grid 53 is a support frame of a mesh structure, which is connected and fixed to the protruding edge portion 22 of the lower conical water purification chamber 2 to provide further support for the structure of the multi-chamber filtration composite structure 3.

[0089] The anti-blocking filter screen 51, the metal support grid 53 and the filter medium support porous plate 52 are all detachably connected; specifically, threads, snaps and the like can be used to facilitate disassembly, cleaning and maintenance.

[0090] Specific working method: firstly, open the external gas source, and deliver the gas to the first gas channel 331 of the flow dividing support baffle 33 and the second gas channel 341 of the auxiliary flow dividing support baffle 34 through the gas supply hole, and spray out from the plurality of first jet holes 332 and the plurality of second jet holes 342; the gas sprayed from the first jet hole 332 will cause the local liquid flow velocity and flow direction to change, forming local turbulence and increasing the agitation degree of the liquid; and the gas sprayed from the second jet hole 342 interferes with the liquid near the upper surface in the entire mesh filter unit 35, further enhancing the turbulence effect, promoting the full mixing of gas and liquid, so that the suspended matter in the liquid is dispersed, which is conducive to the filter material to capture these suspended impurities;

[0091] At the same time, the water to be filtered enters the upper shell body 1 from the raw water inlet 11, flows through the pre-filtration porous plate 4, the multi-chamber filtration composite structure 3, and the filtration support assembly 5 in sequence, and the filtered water flows out from the clean water outlet 21; this continuous step-by-step filtration process not only shares the filtration load of the filter material, prolongs the service life of the filter material, but also achieves a more refined and thorough filtration effect.

[0092] In the multi-chamber filter composite structure 3, the water flows along the path formed by the diversion guide groove 32, the diversion support baffle 33, and the auxiliary diversion support baffle 34, so that the water flows evenly through the filter material for effective filtration. When the water flows through the upper row of steady flow holes 321, the liquid flow rate increases, and the flow becomes more concentrated, which helps to penetrate the filter material more effectively, thereby improving the filtration efficiency; and the increase in flow rate may cause local turbulence, enhance the contact between the liquid and the filter material, and promote the removal of finer particles; the larger diameter of the lower row of steady flow holes 322 can reduce the resistance of the water flow, which helps to evenly distribute the flow of liquid in the multi-chamber filter composite structure 3; the upper row of steady flow holes 321 and the lower row of steady flow holes 322 also further promote the mixing of the gas and liquid ejected from the first jet hole 332 and the second jet hole 342, as well as the dispersion of suspended matter, so that the suspended matter is easier to contact with the filter material, thereby improving the filtration effect.

[0093] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A filtering device for aqueous battery production, mainly comprising: An upper shell body (1), a multi-chamber filtration composite structure (3) and a pre-filtration porous plate (4) in the upper shell body (1), and a lower conical water purification chamber (2) having a filtration support assembly (5); The lower conical water purification chamber (2) is sealedly connected to the bottom of the upper shell body (1); the top of the upper shell body (1) is provided with an inlet (11) for introducing raw water to be filtered, and the bottom of the lower conical water purification chamber (2) is provided with a clean water outlet (21) for letting the purified water flow out; the characteristics are: The multi-chamber filtering composite structure (3) is connected and fixed to the lower surface of the pre-filtering porous plate (4); The filter support assembly (5) mainly comprises: a metal support grid (53), a filter medium support porous plate (52) and an anti-blocking filter screen (51) arranged in sequence from bottom to top in the direction of the upper shell body (1); The multi-chamber filter composite structure (3) mainly comprises: a square frame (31) having a hollow frame ventilation chamber (311), a plurality of inverted V-shaped flow diversion guide grooves (32), a plurality of flow diversion support baffles (33), a plurality of auxiliary flow diversion support baffles (34) and a plurality of mesh filter units (35); Each flow-dividing support baffle (33) has a first gas channel (331) with a hollow structure inside; that is, there are also a plurality of first gas channels (331); each auxiliary flow-dividing support baffle (34) has a second gas channel (341) with a hollow structure inside; that is, there are also a plurality of second gas channels (341); each first gas channel (331) is in communication with the frame ventilation chamber (311); each second gas channel (341) is in communication with the frame ventilation chamber (311); A plurality of first jet holes (332) are evenly distributed on the side surface of the flow splitting support baffle (33); A plurality of second jet holes (342) are evenly distributed on the side surface of the auxiliary flow splitting support baffle (34); The flow distribution guide groove (32) is provided with a plurality of upper row flow stabilizing holes (321) and a plurality of lower row flow stabilizing holes (322); The flow diversion guide groove (32) and the flow diversion support partition (33) are perpendicular to each other, forming a grid-like structure for accommodating filter materials, and each grid is a grid filter unit (35); a plurality of auxiliary flow diversion support partitions (34) are evenly distributed between two adjacent flow diversion support partitions (33); and the plurality of auxiliary flow diversion support partitions (34) are arranged parallel to each other and at intervals; The auxiliary flow-dividing support baffle (34) and the flow-dividing support baffle (33) are parallel to each other; and the auxiliary flow-dividing support baffle (34) and the flow-dividing guide groove (32) are perpendicular to each other.

2. The filtration equipment for aqueous battery production according to claim 1, characterized in that: The four side walls of the square frame (31) are all hollow structures; the hollow structures of the four side walls are interconnected to form a frame ventilation chamber (311); the frame ventilation chamber (311) is connected to an external air source via an air supply hole; A notch matched with the square frame (31) is provided on the inner wall of the upper shell body (1), so that the square frame (31) is exactly embedded therein to form a sealed connection.

3. The filtration equipment for aqueous battery production according to claim 2, characterized in that: The height of the flow dividing support baffle (33) in the vertical direction is h2, the height of the square frame (31) is H, and h2=H; The height of the auxiliary flow dividing support baffle (34) in the vertical direction is h1, where h1=(1 / 2~1 / 3)h2; The diameter of the second jet hole (342) is the same as the diameter of the first jet hole (332).

4. The filtration equipment for aqueous battery production according to claim 3, characterized in that: The two ends of the flow-dividing guide groove (32) in the longitudinal direction are respectively connected to the first side wall (31a) and the second side wall (31b) of the square frame (31) to form a closed state; the flow-dividing guide groove (32) forms an inverted V shape in the transverse direction; The height of the flow dividing guide groove (32) in the vertical direction is h3, where h3=H.

5. The filtration equipment for aqueous battery production according to claim 4, characterized in that: The diameter of the lower row of flow stabilizing holes (322) is greater than the diameter of the upper row of flow stabilizing holes (321); The number of the upper row of flow stabilizing holes (321) and the number of the lower row of flow stabilizing holes (322) are both multiple; and the number of the lower row of flow stabilizing holes (322) is 2 to 3 times the number of the upper row of flow stabilizing holes (321); In the longitudinal direction, a single lower row of flow stabilizing holes (322) is located at a midpoint between two adjacent upper row of flow stabilizing holes (321); The distance between the upper row of steady flow holes (321) and the lower surface of the pre-filtration porous plate (4) in the vertical direction is h4, where h4=30 mm to 80 mm; the distance between the lower row of steady flow holes (322) and the upper row of steady flow holes (321) in the vertical direction is h5, where h5=20 mm to 70 mm.

6. The filtration equipment for aqueous battery production according to claim 5, characterized in that: The pre-filtering porous plate (4) is evenly arranged with a plurality of pre-filtering through holes (41); the pre-filtering through holes (41) include: pre-filtering upper section holes (411), pre-filtering lower section holes (412) and pre-filtering through hole annular step surfaces (413); The upper pre-filtering hole (411) is close to the upper surface of the pre-filtering porous plate (4), and the lower pre-filtering hole (412) is close to the lower surface of the pre-filtering porous plate (4); the diameter of the lower pre-filtering hole (412) is larger than the diameter of the upper pre-filtering hole (411); the upper pre-filtering hole (411) and the lower pre-filtering hole (412) are located on the same axis; A step plate-like structure is formed between the pre-filter upper hole (411) and the pre-filter lower hole (412), namely the pre-filter through hole annular step surface (413); the inner ring diameter of the pre-filter through hole annular step surface (413) is the same as the diameter of the pre-filter upper hole (411); and the outer ring diameter of the pre-filter through hole annular step surface (413) is the same as the diameter of the pre-filter lower hole (412).

7. The filtration equipment for aqueous battery production according to claim 6, characterized in that: The filter medium supporting porous plate (52) is provided with a plurality of microporous filtration through holes (523); the microporous filtration through holes (523) also include: microporous filtration upper section holes (5231), microporous filtration lower section holes (5232) and microporous filtration through hole annular step surfaces (5233); a microporous filtration through hole annular step surfaces (5233) are formed between the microporous filtration upper section holes (5231) and the microporous filtration lower section holes (5232); the microporous filtration upper section holes (5231) are close to the upper surface of the filter medium supporting porous plate (52), and the microporous filtration lower section holes (5232) are close to the lower surface of the filter medium supporting porous plate (52); and the diameter of the microporous filtration lower section holes (5232) is smaller than the diameter of the microporous filtration upper section holes (5231).

8. The filtration equipment for aqueous battery production according to claim 7, characterized in that: The metal support grid (53) is a support frame of a mesh structure, which is connected and fixed to the protruding edge portion (22) of the lower conical water purification chamber (2) and is used to further support the structure of the multi-chamber filtration composite structure (3); The anti-blocking filter screen (51), the metal support grid (53) and the filter medium support porous plate (52) are all detachably connected.

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