Water treatment purification filter cartridge

Abstract

The application relates to the technical field of water treatment filter core preparation, in particular to a water treatment and purification filter core. The water treatment and purification filter core comprises an outer shell and a combined purification filter core which is detachably connected in the outer shell, a purification water flow cavity is formed between the combined purification filter core and the outer shell; the outer shell is formed with a purification water outlet which is communicated with the purification water flow cavity; the combined purification filter core is formed with a to-be-purified water inlet; to-be-purified water enters the combined purification filter core through the to-be-purified water inlet, purified water which is purified by the combined purification filter core flows into the purification water flow cavity, and the purified water flows out of the outer shell through the purification water outlet and is collected and utilized. The water treatment and purification filter core prepared in the application has excellent antibacterial disinfection and purification, can be disassembled, cleaned and maintained, and has a relatively long service life.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of water treatment filter core preparation, in particular to a water treatment and purification filter core. BACKGROUND

[0002] A conventional water purifier filter core is generally composed of two to five filter cores. The conventional water purifier filter core is composed of an activated carbon carbon rod filter core and an antibacterial filter core. The carbon rod filter core has large resistance, is easy to be blocked, and has a short service life. Moreover, the conventional antibacterial filter core mainly adopts a large amount of Ag ion mixed PP granulation + zeolite slow release. The initial release amount of silver ions is large in the initial stage, discoloration is easy to occur, and the effect is insufficient in the later stage. In view of the problems in the prior art, the application provides a water treatment and purification filter core. SUMMARY

[0003] In order to solve the above technical problems, the application provides a water treatment and purification filter core.

[0004] The water treatment and purification filter core provided by the application is realized through the following technical scheme:

[0005] The water treatment and purification filter core comprises an outer shell and a combined purification filter core which is detachably connected in the outer shell, and a purification water flow cavity is formed between the combined purification filter core and the outer shell. The outer shell is formed with a purification water outlet which communicates with the purification water flow cavity. The combined purification filter core is formed with a to-be-purified water inlet. To-be-purified water enters the combined purification filter core through the to-be-purified water inlet, the purified water which is purified by the combined purification filter core flows into the purification water flow cavity, and the purified water flows out of the outer shell through the purification water outlet and is collected and utilized.

[0006] Through the above technical scheme, the water treatment and purification filter core prepared in the application has excellent antibacterial and disinfecting purification, can be disassembled and cleaned and maintained, and has a relatively long service life.

[0007] Preferably, the combined purification filter core comprises an initial filtration inner tube, antibacterial non-woven purification cotton, an inner support framework, a virus-killing porous sponge and an outer support framework. One end of the initial filtration inner tube extends to the outside of the outer shell. An opening end of the initial filtration inner tube extending to the outside of the outer shell is the to-be-purified water inlet. The antibacterial non-woven purification cotton is fixedly connected to the outer wall of the initial filtration inner tube. The inner support framework is fixedly connected to the outer wall of the antibacterial non-woven purification cotton. The virus-killing porous sponge is fixedly connected to the outer wall of the inner support framework. The outer support framework is fixedly connected to the outer wall of the virus-killing porous sponge. The inner support framework is provided with a plurality of water flow through holes A. The outer support framework is provided with a plurality of water flow through holes B.

[0008] The water to be purified passes through the inner pipe of preliminary filtration, the antibacterial non-woven purification cotton, the inner supporting framework, the porous sponge for killing viruses and the outer supporting framework in sequence. The inner pipe of preliminary filtration performs preliminary filtration on the water to be purified, mainly removing solid impurity particles, part of bacteria and organic matters. The antibacterial non-woven purification cotton performs sterilization and adsorption treatment on the water to be purified, effectively removing gel suspended particles, part of bacteria and organic matters in the water to be purified. The porous sponge for killing viruses performs sterilization, virus killing and adsorption treatment on the water to be purified, effectively removing bacteria, viruses and organic matters in the water to be purified, thereby ensuring the quality of the water purified by the water purification filter core and achieving the purpose of replacing multiple cores with one core, reducing the use and maintenance cost and having good market potential.

[0009] Preferably, the inner supporting framework is formed by injection molding using PP resin or PET resin, the wall thickness of the inner supporting framework is controlled to be 0.8-1.5 mm, the diameter of the plurality of water flow through holes A is controlled to be 2-12 mm, the opening rate of the inner supporting framework is controlled to be 40-60%, the outer supporting framework is made of metal alloy material, the wall thickness of the outer supporting framework is controlled to be 0.6-1.0 mm, the diameter of the water flow through holes B is controlled to be 0.1-3 mm, and the opening rate of the outer supporting framework is controlled to be 20-40%.

[0010] By adopting the above technical solution, the purification quality and the purification efficiency of the arrangement can be ensured.

[0011] Preferably, the short filaments in the antibacterial non-woven purification cotton are mainly prepared from the following raw materials: 8-20 parts of molecular sieve filler, 5-10 parts of PAN-based activated carbon fiber powder, 0.5-2 parts of dispersing agent, 1-3 parts of anti-aging agent and 80-100 parts of PP resin. The dispersing agent is at least one of KH550, KH560 and KH570. The anti-aging agent is at least one of antioxidant 168, antioxidant 1010 and ultra-fine titanium nitride powder. The short filaments in the antibacterial non-woven purification cotton are 4-7-hole hollow short filaments.

[0012] The PAN-based activated carbon fiber powder in the application can achieve good sterilization, virus killing and impurity adsorption effects, thereby ensuring the quality of the water purified by the application. In addition, the water treatment purification filter core prepared from the antibacterial non-woven purification cotton can be used as an air purification filter core, which is a purification filter core with multiple functions.

[0013] Preferably, the preparation method of the antibacterial non-woven purification cotton comprises the following steps:

[0014] S1, dry the PP resin for standby; meanwhile, mix the accurately measured molecular sieve filler, PAN-based activated carbon fiber powder, anti-aging agent and dispersing agent uniformly to obtain a mixed filler for standby;

[0015] S2, the PP resin and the mixed filler which are uniformly mixed in S1 are added into a double screw extruder, and are extruded and melted at a constant temperature of 150-180 DEG C, and the extrusion amount is controlled by a metering pump according to the set requirement, and then the extruded product is uniformly spread on a steel net through a melt-blowing die and a special-shaped spinneret to form a wide cloth-like semi-finished non-woven fabric;

[0016] S3, the finished non-woven fabric is obtained by heating and pressing with a steel roller and cooling.

[0017] The preparation method is relatively simple, and is convenient for industrial production and reduces the use cost.

[0018] Preferably, the raw material for preparing the virus-killing porous sponge contains 4-10% of the monatomic antibacterial and virus-killing adsorption agent.

[0019] By using the above technical scheme, the monatomic antibacterial and virus-killing adsorption agent can play a good role in killing bacteria and viruses and adsorbing impurity particles, thereby ensuring the water quality after the purification treatment.

[0020] Preferably, the primary filtration inner tube is a porous ceramic inner tube, and the raw material used in the preparation process of the porous ceramic inner tube contains the monatomic antibacterial and virus-killing agent.

[0021] The monatomic antibacterial and virus-killing agent in the application can play an excellent role in sterilization and disinfection, can perform preliminary sterilization and virus-killing treatment on the water to be purified, reduces the load pressure of subsequent purification, and thereby improves the overall purification efficiency.

[0022] Preferably, the primary filtration inner tube includes a porous ceramic inner tube, and the outer wall of the porous ceramic inner tube is coated with an ultrafiltration membrane; the outer wall of the porous ceramic inner tube is provided with an outer sizing shell; the outer sizing shell is a mesh shell; the ultrafiltration membrane is arranged between the porous ceramic inner tube and the outer sizing shell; the water to be purified enters the primary filtration inner tube through the water inlet of the primary filtration inner tube, and then passes through the porous ceramic inner tube, the ultrafiltration membrane and the outer sizing shell in sequence and flows to the antibacterial non-woven purification cotton.

[0023] The ultrafiltration membrane can play a role in filtering solid particles and bacteria, thereby reducing the load pressure of subsequent purification and improving the overall purification efficiency.

[0024] Preferably, the inner wall of the shell body is provided with an annular groove; the annular groove is fixedly connected with a sterilization ring body; the sterilization ring body forms a storage chamber; the storage chamber is filled with spherical molecular sieve particles; the sterilization ring body is provided with a flow channel in communication with the storage chamber; the purified water enters the storage chamber and contacts the spherical molecular sieve particles through the flow channel.

[0025] The sterilization ring body provided in the application can further adsorb, disinfect and purify the purified water body, and ensure the quality of the purified water body, and the water purified by the application can reach the direct drinking standard.

[0026] Preferably, the outer shell is provided with a conductive fiber fabric and a conductive limiting mesh cover; the inner diameter of the conductive limiting mesh cover is greater than the outer diameter of the outer support framework; the conductive fiber fabric is limited between the inner wall of the outer support framework and the outer wall of the conductive limiting mesh cover; one end of the conductive limiting mesh cover is connected with a power supply; one end of the conductive limiting mesh cover is connected to the negative electrode of the power supply; one end of the outer support framework is connected to the positive electrode of the power supply.

[0027] In the application, the conductive fiber fabric and the conductive limiting mesh cover are provided, so that the cations in the water body are adsorbed on the conductive fiber fabric, and the anions in the water body are adsorbed on the surface of the outer support framework, which can effectively remove the impurity ions in the water body, and the water purified by the application can reach the direct drinking standard.

[0028] In summary, the application has the following advantages:

[0029] 1. The water treatment and purification filter element prepared in the application has excellent antibacterial disinfection and purification, can be disassembled and cleaned and maintained, and has a relatively long service life. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is the overall structure schematic diagram of example 1 in the application.

[0031] Figure 2 is Figure 1 is the partial enlarged view of A in

[0032] Figure 3 is the structure schematic diagram of the sterilization ring body in example 1 of the application.

[0033] Figure 4 is the overall structure schematic diagram of example 2 in the application.

[0034] Figure 5 is Figure 4 is the partial enlarged view of B in

[0035] Figure 6 is the overall structure schematic diagram of example 3 in the application.

[0036] Figure 7 is Figure 6 is the partial enlarged view of C in

[0037] Figure 8is the overall structure schematic diagram of embodiment 4 in the present application. In the figure, 1, outer shell; 10, purified water outlet; 100, mounting channel; 11, ring groove; 12, sterilization ring body; 121, storage chamber; 122, spherical molecular sieve particles; 123, flow channel; 13, cover; 2, combined purification filter element; 20, purified water flow cavity; 200, first pp resin mesh inner tube; 201, filter membrane; 202, second pp resin mesh outer tube; 21, primary filtration inner tube; 211, porous ceramic inner tube; 212, ultrafiltration membrane; 213, outer shaped shell; 22, antibacterial non-woven purification cotton; 23, inner support framework; 231, water flow through hole A; 24, virus-killing porous sponge; 25, outer support framework; 251, water flow through hole B; 26, first end cap; 261, limiting outer ring body; 27, second end cap; 271, limiting ring body; 272, through hole; 273, sealing ring; 28, water treatment area; 29, sealing layer; 3, conductive fiber fabric; 4, conductive limiting mesh cover. DETAILED DESCRIPTION

[0038] The present application is further described in detail below in conjunction with the accompanying drawings, comparative examples and examples.

[0039] Preparation example

[0040] The short filaments in the antibacterial non-woven purification cotton are 7-hole hollow short filaments, which are prepared from the following raw materials: 16 parts of 4A molecular sieve powder (average particle size D50=5-20 microns), 8 parts of PAN-based activated carbon fiber powder (average particle size D50=1-5 microns), 1.5 parts of dispersing agent KH550, 1 part of antioxidant 1010, 0.2 parts of antioxidant 168, 0.3 parts of ultra-fine titanium nitride powder, and 100 parts of PP resin. The average particle size of the ultra-fine titanium nitride powder is 700 nm, the cubic crystal form, and the specific surface area is 10.0 m 2 / g.

[0041] The preparation method of the antibacterial non-woven purification cotton 22 comprises the following steps:

[0042] S1, the PP resin is dried at 80°C for 6h, and is ready for use;

[0043] At the same time, accurately measure 320g of 4A molecular sieve powder, 160g of PAN-based activated carbon fiber powder, 20g of antioxidant 1010, 4g of antioxidant 168, 6g of ultra-fine titanium nitride powder, and 30g of dispersing agent KH550, and mix them uniformly to obtain a mixed filler, which is ready for use;

[0044] S2, 2000g of PP resin dried in S1 is mixed with the mixed filler and added to the twin-screw extruder, extruded and melted at a constant temperature of 150-180℃, and the extruded amount is controlled by a metering pump according to the set requirements, and then passed through a melt-blowing die and a special-shaped spinneret to be evenly spread on a steel mesh to form a wide cloth-like semi-finished non-woven fabric;

[0045] S3, the finished non-woven fabric is obtained by heating and hot pressing with a steel roller and cooling.

[0046] Embodiment

[0047] Embodiment 1

[0048] Reference Figure 1 A water treatment and purification filter element includes an outer shell 1, an installation hole 100 is formed in the inner part of one end of the outer shell 1, and the diameter of the installation hole 100 is controlled to be 28-32mm. The outer shell 1 is threadedly and sealingly connected with a cover 13 at one end. A combined purification filter element 2 is arranged in the outer shell 1, and the combined purification filter element 2 is used for purifying water bodies to obtain high-quality domestic water. The cover 13 is removed, the combined purification filter element 2 is installed and fixed in the outer shell 1, and a purification water flow cavity 20 is formed between the combined purification filter element 2 and the inner wall of the outer shell 1. One end of the combined purification filter element 2 extends to the outside of the outer shell 1, and a purification water outlet 10 is formed between the one end of the combined purification filter element 2 extending to the outside of the outer shell 1 and the installation hole 100, and the purification water outlet 10 is in communication with the purification water flow cavity 20. The one end of the combined purification filter element 2 extending to the outside of the outer shell 1 is formed with a to-be-purified water inlet. To-be-purified water enters the combined purification filter element 2 through the to-be-purified water inlet, and the purified water treated by the combined purification filter element 2 flows into the purification water flow cavity 20 and flows out of the outer shell 1 through the purification water outlet 10 to be collected and used.

[0049] Reference Figure 1 The combined purification filter element 2 includes an initial filtration inner tube 21, and an antibacterial non-woven purification cotton 22, an inner support framework 23, a sterilization porous sponge 24 and an outer support framework 25 arranged in the initial filtration inner tube 21 from inside to outside. The outer support framework 25 is threadedly and sealingly connected with a first end sealing member 26 at one end side, and the surface of the first end sealing member 26 abuts against the cover 13. The outer wall of the first end sealing member 26 is embedded with a limiting outer ring body 261, and the limiting outer ring body 261 is a mesh member. The inner diameter of the limiting outer ring body 261 is equal to the outer diameter of the outer support framework 25, and the outer diameter of the limiting outer ring body 261 is equal to the inner diameter of the outer shell 1. The other side of the outer support framework 25 is threadedly and sealingly connected with a second end sealing member 27. The surface of the second end sealing member 27 is fixedly connected with a limiting ring body 271, and the limiting ring body 271 is a mesh member. The limiting ring body 271 is embedded in the inner wall of the outer shell 1, thereby facilitating the installation and fixation of the combined purification filter element 2.

[0050] Reference Figure 1, the primary filtration inner tube 21 performs preliminary filtration on the water to be purified, mainly removing solid impurity particles, part of bacteria and organic matter. The antibacterial non-woven purification cotton 22 uses the antibacterial non-woven purification cotton in the preparation example to perform sterilization and adsorption treatment on the water to be purified, effectively removing gel suspension particles, part of bacteria and organic matter in the water to be purified. The virus-killing porous sponge 24 performs sterilization, virus killing and adsorption treatment on the water to be purified, effectively removing bacteria, viruses and organic matter in the water to be purified, thereby ensuring the water quality after purification treatment by the present application.

[0051] With reference to Figure 1 and Figure 2 , one end of the primary filtration inner tube 21 extends to the outside of the outer shell 1, that is, the open end of the primary filtration inner tube 21 extending to the outside of the outer shell 1 is the water inlet to be purified. The primary filtration inner tube 21 is formed between the peripheral side and the mounting hole 100, and the purification water outlet 10 in communication with the purification water flow cavity 20. The overall wall thickness of the primary filtration inner tube 21 is controlled to be between 1.9-2.1mm. The primary filtration inner tube 21 extending to the outside of the outer shell 1 is sealed and threaded through the second end piece 27. The second end piece 27 is coaxially provided with a threaded hole 272, and the diameter of the threaded hole 272 is equal to 26mm. The threaded hole 272 is fixedly connected with a sealing ring 273, and the inner diameter of the sealing ring 273 is 0.2-0.4mm larger than the outer diameter of the primary filtration inner tube 21, so as to realize the sealing and threading of the primary filtration inner tube 21 extending to the outside of the outer shell 1 through the second end piece 27.

[0052] With reference to Figure 1 and Figure 2 , the outer support framework 25, the first end piece 26 and the second end piece 27 form a water treatment area 28. The primary filtration inner tube 21 located in the water treatment area 28 includes a first pp resin mesh inner tube 200, a filter membrane 201 and a second pp resin outer mesh tube 202, and the filter membrane 201 is fixedly connected between the first pp resin mesh inner tube 200 and the second pp resin outer mesh tube 202.

[0053] With reference to Figure 1 and Figure 2 , the wall thickness of the second pp resin outer mesh tube 202 and the first pp resin mesh inner tube 200 is 1.0±0.05mm. The filter membrane 201 is an ultrafiltration membrane, which can remove particulate impurities and part of bacteria. The inner diameter of the first pp resin mesh inner tube 200 is controlled to be 14-20mm, and in this embodiment, the inner diameter of the first pp resin mesh inner tube 200 is 18mm. The inner diameter of the second pp resin outer mesh tube 202 is 20mm, and the outer diameter is 22mm.

[0054] With reference to Figure 1The antibacterial non-woven purification cotton 22 is fixedly connected to the outer wall of the primary filtering inner tube 21, and the antibacterial non-woven purification cotton 22 is the antibacterial non-woven purification cotton in the preparation example. The thickness of the antibacterial non-woven purification cotton 22 is controlled to be 15-40 mm. In the embodiment, the thickness of the antibacterial non-woven purification cotton 22 is 24 mm.

[0055] With reference to Figure 1 The inner support framework 23 is fixedly connected to the outer wall of the antibacterial non-woven purification cotton 22, and the inner support framework 23 is formed by injection molding of PP resin or PET resin. In the embodiment, the inner support framework 23 is formed by injection molding of PP resin, and the wall thickness is controlled to be 0.8-1.5 mm. In the embodiment, the wall thickness of the inner support framework 23 is controlled to be 1.2 mm. The inner support framework 23 is provided with a plurality of water flow through holes A231, and the diameter of the water flow through hole A is controlled to be 2-12 mm. In the embodiment, the diameter of the water flow through hole A is controlled to be 8 mm. The opening rate of the inner support framework 23 is controlled to be 40-60%, and in the embodiment, the opening rate of the inner support framework 23 is controlled to be 50%.

[0056] With reference to Figure 1 The sterilization porous sponge 24 is fixedly connected to the outer wall of the inner support framework 23, and the sterilization porous sponge 24 is 10-25 mm. In the embodiment, the sterilization porous sponge 24 is 15 mm. The sterilization porous sponge 24 contains 4-10% of monatomic antibacterial and sterilization adsorption reagent in the raw material, and the sterilization porous sponge 24 used in the embodiment contains 6% of monatomic antibacterial and sterilization adsorption reagent.

[0057] The preparation method of the monatomic antibacterial and sterilization adsorption reagent is as follows: 5 g / L silver nitrate aqueous solution is added to diatomite, the mass ratio of the transition metal salt to the carrier is 1:20, the obtained solution is uniformly dispersed under the condition of 100 kHz for 30 min, and then the mixed solution is stirred at 100 r / min for 12 h; then the obtained mixed solution is heated to the boiling point of water, volatilized at high temperature, dried, and fully ground by a planetary ball mill at a speed of 50 r / min for 30 min to obtain a solid powder; finally, the obtained solid powder is heated and treated under the condition of air atmosphere and 800°C for 2.0 h, cooled to room temperature, and ground by a planetary ball mill at a speed of 50 r / min to a particle size D50 of 0.5-2 microns, to obtain the required monatomic antibacterial and sterilization adsorption reagent.

[0058] With reference to Figure 1The outer support framework 25 is fixedly connected to the outer wall of the sterilization porous sponge 24. The outer support framework 25 is provided with a plurality of water flow through holes B251 by laser penetration. The diameter of the water flow through hole B251 is controlled to be 0.1-3mm, and in the embodiment, the diameter of the water flow through hole B251 is controlled to be 0.2mm. The opening rate of the outer support framework 25 is controlled to be 20-40%, and in the embodiment, the opening rate of the outer support framework 25 is controlled to be 25%. The outer support framework 25 is made of 304 food-grade stainless steel, and the wall thickness is controlled to be 1.0mm.

[0059] With reference to Figure 1 and Figure 3 , in order to improve the quality of the purified water in the purified water flow cavity 20, the inner wall of the outer shell 1 is provided with a ring groove 11 with a groove depth of 1.5mm, and the ring groove 11 is fixedly connected with a sterilization ring body 12. The sterilization ring body 12 can further adsorb, disinfect and purify the purified water body, so as to ensure the quality of the purified water body. The water body purified by the present application can reach the direct drinking standard. The inner diameter of the outer shell 1 is 130mm, the outer diameter is 136mm, and the wall thickness is 3mm.

[0060] With reference to Figure 1 and Figure 3 , the sterilization ring body 12 is made of flexible plastic film material. The sterilization ring body 12 forms a storage chamber 121, and the storage chamber 121 is filled with spherical molecular sieve particles 122. The sterilization ring body 12 is provided with a flow channel 123 in communication with the storage chamber 121. The purified water enters the storage chamber 121 and contacts the spherical molecular sieve particles 122 through the flow channel 123. The diameter of the spherical molecular sieve particles 122 is controlled to be 2.5-4mm. The diameter of the flow channel 123 is controlled to be 1-2mm. During the preparation of the spherical molecular sieve particles 122, 2% of nano-titanium dioxide and 1% of nano-manganese powder are added, which has a good antibacterial, deodorizing and disinfecting effect.

[0061] Embodiment 2

[0062] The difference between embodiment 2 and embodiment 1 is:

[0063] With reference to Figure 4 , the primary filtration inner tube 21 is a porous ceramic inner tube. The outer diameter of the porous ceramic inner tube is 20-22mm, and the inner diameter is 10-12mm. In the embodiment, the outer diameter of the porous ceramic inner tube is 22mm, and the inner diameter is 10mm. The outer wall of the primary filtration inner tube 21 located outside the second sealing member 27 is sintered to form a sealing layer 29 for preventing water seepage.

[0064] The raw materials used in the preparation process of the porous ceramic inner tube contain monatomic antibacterial and disinfecting agents.

[0065] The preparation method of the monatomic antibacterial and disinfecting agent comprises the following steps:

[0066] 1) Preparation of porous composite carrier: 100 g of nano-TiO2, nano-SiO2 and 4A silicon-aluminum molecular sieve were weighed according to the mass ratio of 1:1:3, mixed uniformly, 2 g of sodium carbonate solution with pH = 9 ± 0.1 was added, mixed again, and then expanded by calcination. The calcination temperature was 450℃, the pressure in the kettle was 1.0 MPa, and the calcination time was 10 min. After calcination, it was taken out and cooled to room temperature, and then ball milled to obtain a porous composite carrier with an average particle size D50 of 500 nm;

[0067] 2) Preparation of metal coordination precursor: 25 mL of 5% ammonia solution was added dropwise to 500 mL of 20 g / L metal nitrate aqueous solution at a speed of 20 μL / s, stirred at 600 rpm for 4 h, wherein the molar ratio of transition metals in the 20 g / L metal nitrate aqueous solution was Ag:Zn:Mn:Cu = 2:1:1:1, then heated to 60℃ within 30 min and continued to stir for 4 h, after stirring, cooled to room temperature, and prepared a metal coordination precursor;

[0068] 3) Preparation of single-atom antibacterial and antiviral mildew-proof and aldehyde-removing agent precursor: the porous composite carrier prepared in step 1) was added to the transition metal single-atom precursor prepared in step 2) at a speed of 40 g / min, and the mass ratio of transition metal to porous composite carrier was 1:80. After 30 min of ultrasonic treatment, it was stirred and mixed at a speed of 600 rpm for 12 h, washed with water until neutral, filtered, dried, ground, and prepared into a powder;

[0069] 4) Preparation of single-atom antibacterial and antiviral mildew-proof and aldehyde-removing agent: the powder obtained in step 3) was placed in an atmosphere of 5wt% hydrogen / argon mixed gas, heated at 650℃ for 8 h, cooled, and ground to obtain a single-atom antibacterial and antiviral agent with an average particle size D50 of 500 nm.

[0070] The porous ceramic inner tube is made of porous ceramic slurry. The porous ceramic slurry is prepared from the following raw materials: 385 g of deionized water, 5 g of sodium carboxymethyl cellulose, 10 g of polyacrylamide, 150 g of 325 mesh quartz sand, 60 g of single-atom antibacterial and antiviral agent, 72 g of 600 mesh 4A molecular sieve, 48 g of 800 mesh quartz sand, 48 g of kaolin, 42 g of basalt, 30 g of perlite, and 150 g of starch.

[0071] The method for preparing the porous ceramic inner tube comprises the following steps:

[0072] S1, 150 g of 325 mesh quartz sand, 60 g of single-atom antibacterial and antiviral agent, 72 g of 600 mesh 4A molecular sieve, 48 g of 800 mesh quartz sand, 48 g of kaolin, 42 g of basalt, 30 g of perlite, and 150 g of starch are mixed uniformly to obtain a mixed powder;

[0073] S2, the mixed powder in S1 is mixed with deionized water to prepare a water-based slurry by mechanical stirring, 10 g of polyacrylamide is added into the water-based slurry, and after stirring at 300 rpm for 60 min, 5 g of sodium carboxymethyl cellulose is added, the pH of the slurry is adjusted to 7 using ammonia water, and the stirring is continued for 10 h to obtain a ceramic slurry;

[0074] S3, the porous ceramic slurry is injected into a preheated mold, dried at a temperature of 40℃, then demolded to obtain a porous ceramic body, the porous ceramic body is placed into a sintering furnace, heated to 120℃ at a rate of 30℃ / h, kept for 1 h, heated to 280℃ at a rate of 40℃ / h, kept for 2 h, heated to 360℃ at a rate of 40℃ / h, kept for 4 h, heated to 450℃ at a rate of 60℃ / h, kept for 2 h, heated to 600℃ at a rate of 120℃ / h, kept for 1 h, heated to 900℃ at a rate of 300℃ / h, kept for 1 h, heated to 1150℃ at a rate of 120℃ / h, kept for 2 h, then cooled to room temperature to obtain a finished product of the porous ceramic inner tube.

[0075] Example 3

[0076] The difference between Example 3 and Example 1 is that:

[0077] Referring to Figure 6 and Figure 7 , the primary filtration inner tube 21 comprises a porous ceramic inner tube 211 with an inner diameter of 10 mm and an outer diameter of 21 mm. The porous ceramic inner tube 211 differs from the porous ceramic inner tube in Example 2 in that no monatomic antibacterial and disinfectant agent is added. The outer wall of the porous ceramic inner tube 211 is coated with an ultrafiltration membrane 212, which serves to filter bacteria and particulate impurities. The outer wall of the porous ceramic inner tube 211 is provided with an outer shaping shell 213 with an outer diameter of 22 mm and a wall thickness of 1 mm, and the outer shaping shell 213 is a mesh shell. The ultrafiltration membrane 212 is fixedly arranged between the porous ceramic inner tube 211 and the outer shaping shell 213. The water to be purified enters the primary filtration inner tube 21 through the water to be purified inlet of the primary filtration inner tube 21, and the water to be purified flows to the antibacterial non-woven purification cotton 22 in sequence through the porous ceramic inner tube 211, the ultrafiltration membrane 212, and the outer shaping shell 213.

[0078] Example 4

[0079] The difference between Example 4 and Example 2 is that:

[0080] Referring to Figure 8, the outer shell 1 is provided with a conductive fiber fabric 3 and a conductive limiting mesh cover 4. The conductive fiber fabric 3 is graphene fiber cotton, and the surface resistivity is 1800Ω*cm. The inner diameter of the conductive limiting mesh cover 4 is 15-40mm larger than the outer diameter of the outer supporting framework 25, and the inner diameter of the outer shell 1 is 10-20mm larger than the inner diameter of the conductive limiting mesh cover 4. In this embodiment, the inner diameter of the conductive limiting mesh cover 4 is 20mm larger than the outer diameter of the outer supporting framework 25, and the inner diameter of the outer shell 1 is 14-16mm larger than the inner diameter of the conductive limiting mesh cover 4.

[0081] Referring to Figure 8 , the conductive fiber fabric 3 is limited between the inner wall of the outer supporting framework 25 and the outer wall of the conductive limiting mesh cover 4. One end of the conductive limiting mesh cover 4 is connected to the power supply 30, and the other end of the conductive limiting mesh cover 4 is connected to the negative electrode of the power supply 30. One end of the outer supporting framework 25 is connected to the positive electrode of the power supply 30, so that the cations in the water body are adsorbed on the conductive fiber fabric 3, and the impurity ions in the water body can be effectively removed.

[0082] Comparative example

[0083] The difference between Comparative Example 1 and Example 1 is that the antibacterial non-woven purification cotton 22 is replaced by an activated carbon bag, the outer layer of the activated carbon bag is non-woven fabric, and the inside is filled with activated carbon powder. The bactericidal porous sponge 24 is replaced by a conventional sponge.

[0084] Performance test

[0085] Detection method / test method

[0086] The resistance value between the conductive limiting mesh cover 4 and the outer supporting framework 25 in Example 4 is 376Ω. The water treatment purification filter of the application is washed with distilled water.

[0087] Test process of Examples 1-3 and Comparative Example 1: After connecting the filter to tap water, open the total water valve, close the discharge valve, and adjust the valve. The water flow rate at the outlet is calibrated to be 3.0L / min. After the water flow rate is stable for 30min, samples are taken at the discharge and raw water sampling ports, and the raw water quality is detected.

[0088] Test process of Example 4: After connecting the filter to tap water, open the total water valve, close the discharge valve, and adjust the valve. The water flow rate at the outlet is calibrated to be 3.0L / min. The conductive limiting mesh cover 4 and the outer supporting framework 25 are connected to an adjustable DC power supply, the DC power supply is 6V, and the power supply is in the closed state. After the water flow rate is stable for 10min, the power supply is in the open state, the water flow rate is stable for 20min, and samples are taken at the discharge and raw water sampling ports, and the raw water quality is detected.

[0089] 1. The water quality to be purified for testing is actually measured to have a conductivity of 200±2μS / cm.

[0090] 2. The water to be purified in the test contains 1000±5mg / L of silt.

[0091] Data analysis

[0092] Table 1 is the particle removal test parameters of Examples 1-4 and Comparative Examples 1-2

[0093] Raw water quality conductivity μS / cm Efficiency removal value % Example 1 Example 2 201 32 84.1 Example 3 200 26 87.0 Example 4 200 21 89.5 Comparative Example 1 201 6 97.0 Silt content in raw water quality mg / L 200 68 66.0

[0094] Table 2 is the impurity removal test parameters of Examples 1-4 and Comparative Examples 1-2

[0095] Silt content in effluent mg / L Efficiency removal value % Example 1 Example 2 1002 3 99.7 Example 3 1000 2 99.8 Example 4 998 2 99.8 Comparative Example 1 1001 1 99.9 ​ 999 16 98.4

[0096] In combination with Examples 1-4 and Comparative Examples 1-2 and in combination with Tables 1-2, it can be seen that the water treatment purification filter element prepared in the present application has excellent antibacterial and antiviral properties, disinfection and purification, high efficiency in removing impurity particles, can be disassembled and cleaned for maintenance, has a relatively long service life, and has a relatively low use cost. The specific embodiments are merely an explanation of the present application, and are not a limitation of the present application. Those skilled in the art can make modifications to the embodiments without creative contribution after reading the present specification, but as long as the modifications are within the scope of the claims of the present application, they are protected by the patent law.

Claims

1. A water treatment purification filter cartridge, characterized by: The utility model relates to a water purifier, including shell (1) and detachable connection in shell (1) combined purification filter core (2), and the purification water flow cavity (20) is formed between combined purification filter core (2) and shell (1), shell (1) forms with the communication of purification water flow cavity (20) purification water outlet (10), the water to be purified enters combined purification filter core (2) through the water to be purified import, and the purification water that passes through combined purification filter core (2) purification treatment flows into purification water flow cavity (20), and the water to be purified is collected and utilized through the water outlet (10) of purification and export shell (1), combined purification filter core (2) includes primary filtration inner tube (21), antibacterial non-woven purification cotton (22), inner support framework (23), virus-killing porous sponge (24) and outer support framework (25), and primary filtration inner tube (21) one end stretches to the outside of shell (1), and the opening end of primary filtration inner tube (21) that stretches to the outside of shell (1) is the water to be purified import, antibacterial non-woven purification cotton (22) is covered and fixedly connected to the outer wall of primary filtration inner tube (21), inner support framework (23) is covered and fixedly connected to the outer wall of antibacterial non-woven purification cotton (22), virus-killing porous sponge (24) is covered and fixedly connected to the outer wall of inner support framework (23), outer support framework (25) is covered and fixedly connected to the outer wall of virus-killing porous sponge (24), inner support framework (23) is penetrated and is provided with a plurality of water flow through -hole A (231), outer support framework (25) is penetrated and is provided with a plurality of water flow through -hole B (251), the short fiber in antibacterial non-woven purification cotton is 7 hole hollow short fiber, and is prepared from the following raw materials: 16 parts 4A molecular sieve powder, 8 parts PAN-based activated carbon fiber powder, 1.5 parts dispersing agent KH550, 1 part antioxidant 1010, 0.2 parts antioxidant 168, 0.3 parts ultrafine titanium nitride powder, 100 parts PP resin, the average particle size of ultrafine titanium nitride powder is 700nm, cubic crystal form, specific surface area 10.0m 2 / g, the average particle size D50 of 4A molecular sieve powder is 5-20 microns, and the average particle size D50 of PAN-based activated carbon fiber powder is 1-5 microns. The preparation method of the antibacterial non-woven purification cotton (22) comprises the following steps: The preparation method of the antibacterial non-woven purification cotton (22) comprises the following steps: S1, the PP resin is dried at 80 DEG C for 6h, and is ready for use; Meanwhile, 320g of 4A molecular sieve powder, 160g of PAN-based activated carbon fiber powder, 20g of antioxidant 1010, 4g of antioxidant 168, 6g of ultra-fine titanium nitride powder and 30g of dispersant KH550 are uniformly mixed to obtain a mixed filler, which is ready for use; S2, the 2000g of PP resin dried in S1 is uniformly mixed with the mixed filler, and is added into a double-screw extruder, and is extruded and melted at a constant temperature of 150-180 DEG C, and is extruded by a metering pump according to the set requirement, and is uniformly spread on a steel mesh through a melt-blowing die and a special-shaped spinneret, so as to form a wide cloth-shaped semi-finished non-woven fabric; S3, the semi-finished non-woven fabric is heated and pressed by a steel roller, and is cooled to obtain a finished non-woven fabric. The preparation raw material of the virus-killing porous sponge (24) comprises 4-10% of a single-atom antibacterial and virus-killing adsorption reagent; the primary filtration inner tube (21) is a porous ceramic inner tube, and the raw material used in the preparation process of the porous ceramic inner tube comprises a single-atom antibacterial and virus-killing reagent.

2. A water treatment purification filter cartridge according to claim 1, characterized in that: The inner support framework (23) is formed by injection molding of PP resin or PET resin; the wall thickness of the inner support framework (23) is controlled to be 0.8-1.5mm; the diameter of the plurality of water flow through holes A is controlled to be 2-12mm; the opening rate of the inner support framework (23) is controlled to be 40-60%; the outer support framework (25) is made of a metal alloy material, and the wall thickness is controlled to be 0.6-1.0mm; the diameter of the water flow through hole B (251) is controlled to be 0.1-3mm; and the opening rate of the outer support framework (25) is controlled to be 20-40%.

3. A water treatment purification filter cartridge according to claim 1, characterized in that: The primary filtration inner tube (21) comprises a porous ceramic inner tube (211) with an outer wall coated with an ultrafiltration membrane (212); the outer wall of the porous ceramic inner tube (211) is provided with an outer shaped shell (213); the outer shaped shell (213) is a mesh shell; the ultrafiltration membrane (212) is arranged between the porous ceramic inner tube (211) and the outer shaped shell (213); the water to be purified enters the primary filtration inner tube (21) through the water inlet of the primary filtration inner tube (21), and then flows through the porous ceramic inner tube (211), the ultrafiltration membrane (212) and the outer shaped shell (213) to the antibacterial non-woven purification cotton (22); the inner wall of the outer shell (1) is provided with an annular groove (11); the annular groove (11) is fixedly connected with a sterilization ring body (12); the sterilization ring body (12) forms a storage chamber (121); the storage chamber (121) is filled with spherical molecular sieve particles (122); the sterilization ring body (12) is provided with a flow channel (123) in communication with the storage chamber (121); the purified water enters the storage chamber (121) through the flow channel (123) and contacts the spherical molecular sieve particles (122); 2% of nano-titanium dioxide and 1% of nano-manganese powder are added during the preparation of the spherical molecular sieve particles (122), which has a good antibacterial, deodorizing and disinfecting effect.

4. The water treatment purification filter cartridge of claim 1, wherein: The outer shell (1) is provided with a conductive fiber fabric (3) and a conductive limiting mesh cover (4); the inner diameter of the conductive limiting mesh cover (4) is greater than the outer diameter of the outer support framework (25); the conductive fiber fabric (3) is limited between the inner wall of the outer support framework (25) and the outer wall of the conductive limiting mesh cover (4); one end of the conductive limiting mesh cover (4) is connected with a power supply (30); one end of the conductive limiting mesh cover (4) is connected to the negative electrode of the power supply (30); one end of the outer support framework (25) is connected to the positive electrode of the power supply (30).

5. The water treatment purification filter cartridge of claim 1, wherein: The porous ceramic inner tube (211) is made of porous ceramic slurry; the porous ceramic slurry is prepared from the following raw materials: 385g of deionized water, 5g of sodium carboxymethyl cellulose, 10g of polyacrylamide, 150g of 325 mesh quartz sand, 60g of monatomic antibacterial and disinfectant reagent, 72g of 600 mesh 4A molecular sieve, 48g of 800 mesh quartz sand, 48g of kaolin, 42g of basalt, 30g of perlite, and 150g of starch.

6. A water treatment purification filter cartridge according to claim 5, wherein: The preparation method of the porous ceramic inner tube comprises the following steps: S1, 150g of 325 mesh quartz sand, 60g of monatomic antibacterial and disinfectant reagent, 72g of 600 mesh 4A molecular sieve, 48g of 800 mesh quartz sand, 48g of kaolin, 42g of basalt, 30g of perlite, and 150g of starch are mixed uniformly to obtain a mixed powder; S2, the mixed powder in S1 is mixed with deionized water, and a water-based slurry is prepared by mechanical stirring. Then 10 g of polyacrylamide is added into the water-based slurry, and stirred at 300 rpm for 60 min. Then 5 g of sodium carboxymethyl cellulose is added, and the pH of the slurry is adjusted to 7 by using ammonia water. The slurry is continuously stirred for 10 h to obtain a ceramic slurry; S3, the porous ceramic slurry is injected into a preheated mold, dried at a temperature of 40℃, and then demolded to obtain a porous ceramic body. The porous ceramic body is placed into a sintering furnace, and heated at a rate of 30℃ / h to 120℃, kept for 1 h, heated at a rate of 40℃ / h to 280℃, kept for 2 h, heated at a rate of 40℃ / h to 360℃, kept for 4 h, heated at a rate of 60℃ / h to 450℃, kept for 2 h, heated at a rate of 120℃ / h to 600℃, kept for 1 h, heated at a rate of 300℃ / h to 900℃, kept for 1 h, heated at a rate of 120℃ / h to 1150℃, kept for 2 h, and then cooled to room temperature to obtain a finished product of the porous ceramic inner tube.

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