CN113289412A

CN113289412A - Manufacturing method of scale inhibition filter element, filter and water using system

Info

Publication number: CN113289412A
Application number: CN202110534176.5A
Authority: CN
Inventors: 丁健; 刘瑞; 黄海; 李雄伟; 王建
Original assignee: Zhejiang Ikahe Sanitary Ware Co ltd; Ningbo Ho Water Purification Technology Inc
Current assignee: Zhejiang Ikahe Sanitary Ware Co ltd; Ningbo Ho Water Purification Technology Inc
Priority date: 2021-05-17
Filing date: 2021-05-17
Publication date: 2021-08-24

Abstract

The embodiment of the invention relates to the technical field of bathrooms, and discloses a manufacturing method of a scale inhibition filter element, a filter and a water using system. The manufacturing method of the scale inhibition filter element comprises the following steps: mixing 30-60 wt% of binder particles and 5-20 wt% of scale inhibitor particles for a first time to obtain a first mixture; step two, adding 30-60% of filtering particles by weight into the first mixture and mixing for a second time to obtain a second mixture; and step three, pouring the second mixture into a sintering mold, and molding and sintering to obtain the scale inhibition filter element. The scale inhibition filter core prepared by the method for preparing the scale inhibition filter core has the performance of filtering impurities and the performance of inhibiting hard water ions. Through the mode, the scale inhibition filter element, the filter and the water using system disclosed by the embodiment of the invention are simple in structure, have the functions of impurity interception and hard water ion scale inhibition, and are convenient to assemble and use.

Description

Manufacturing method of scale inhibition filter element, filter and water using system

Technical Field

The embodiment of the invention relates to the technical field of bathrooms, in particular to a manufacturing method of a scale inhibition filter element, the scale inhibition filter element, a filter and a water using system.

Background

Different from a common closestool, the intelligent closestool has a human body cleaning function, and water for cleaning a human body in the intelligent closestool needs to be filtered, so that on one hand, the water is sanitary and healthy, and on the other hand, the water scale is prevented from being generated, and the service life of key parts such as a heater and a cleaning valve in the intelligent closestool is influenced. The existing intelligent closestool human body washing water inlet filter mainly adopts three filter modes, wherein one mode is that a PP (Polypropylene) cotton filter element or a carbon rod filter element is installed, and a bag of scale inhibition medicament is filled in the filter element, wherein the medicament is wrapped by non-woven fabrics and is placed in the filter element, and the other mode is that the filter element combined by the scale inhibition medicament and a high-density carbon rod is installed.

In the process of implementing the embodiment of the present invention, the inventors of the embodiment of the present invention find that: (1) although the filter has the functions of impurity interception and hard water ion scale inhibition by filling the filter element with the scale inhibition agent, the assembly and processing process of putting the scale inhibition agent wrapped by the non-woven fabric into the PP cotton filter element or the carbon rod filter element is complex, and the tablet has the risk that the non-woven fabric is not tightened to permeate powder; the PP cotton filtered water directly reacts with the tablets after being filtered and simultaneously flows out, so that the risk of reducing the scale inhibition rate due to nonuniform mixing of the scale inhibitor and the water exists; (2) in the filter element combining the scale inhibitor and the high-density carbon rod, the high-density carbon rod has insufficient strength, and has the risk of breakage and fracture in the falling or transportation process; the carbon rod can separate out fine particles and form black water after being mixed with water, and impurity particles can be separated out when the carbon rod is opened for the first time, so that a strand of black water is generated, and the black water can have irritation risk to sensitive people; the carbon rod can generate fine particles for intercepting the carbon rod, and the carbon rod runs through water for a long time and has the risk of impurity scaling and blockage to the water outlet spray head. Therefore, the current filter element can not well realize that hard water scale inhibition and impurities are intercepted and combined, and has the technical problems of inconvenient assembly and poor filtering effect.

Disclosure of Invention

In order to solve the technical problems, embodiments of the present invention provide a method for manufacturing a scale inhibiting filter element, a filter and a water system, wherein the scale inhibiting filter element has both impurity trapping and hard water ion scale inhibiting functions.

In order to solve the above technical problems, the embodiments of the present invention adopt the following technical solutions. A method for manufacturing a scale inhibition filter element comprises the following steps: mixing 30-60 wt% of binder particles and 5-20 wt% of scale inhibitor particles for a first time to obtain a first mixture; step two, adding 30-60% of filtering particles by weight into the first mixture and mixing for a second time to obtain a second mixture; and step three, pouring the second mixture into a sintering mold, and molding and sintering to obtain the scale inhibition filter element.

Optionally, the first step includes: mixing 30 to 60 weight percent of the binder particles with 5 to 20 weight percent of the scale inhibitor particles in a mixer for 7 to 13 minutes; the second step comprises the following steps: adding 30 to 60 weight percent of activated carbon particles into the first mixture, and mixing for 12 to 18 minutes by using the mixer.

Optionally, after the second step, the method further includes: the first weight of the second mixture was taken out as a sample and the effect of mixing was observed.

Optionally, the third step includes: assembling an outer core and a lower die of the sintering die; pouring the mixed second mixture into a sintering mold, and covering an upper mold of the sintering mold; maintaining the pressure of the sintering mold for a third time at the first pressure through an air compressor; keeping the temperature in the sintering furnace at the first temperature for a fourth time; placing the air cooler below the air cooler for a fifth time, and cooling the air cooler to a second temperature; and opening the mold, and taking out the scale inhibition filter element.

Optionally, the first pressure is 20 kgf to 40 kgf, the third time is 10 seconds to 30 seconds, the first temperature is 250 degrees celsius to 300 degrees celsius, the fourth time is 1.5 hours to 3 hours, the fifth time is 15 minutes to 40 minutes, and the second temperature is 30 degrees celsius to 50 degrees celsius.

Optionally, after the third step, the method further includes: and cutting the scale inhibition filter element to obtain the scale inhibition filter element with the first size.

Optionally, the binder particles are screened as follows: screening the raw materials of the adhesive by using 200-mesh and 300-mesh screens respectively; selecting 70-75 wt% of adhesive raw material with 200 meshes or less and more than 300 meshes; and 25-30 wt% of adhesive material smaller than 300 meshes is selected.

Optionally, the scale inhibitor particles are screened as follows: grinding the scale inhibitor particle raw material; screening by using a 80-mesh screen; and the raw material of the scale inhibitor particles with the weight ratio of 100 percent and more than 80 meshes is selected.

Optionally, the filtering particles are screened as follows: grinding the active carbon particle raw material; screening the milled activated carbon particle raw materials by using 80-mesh, 120-mesh and 200-mesh screens respectively; selecting 10-15 wt% of active carbon particle raw material with a particle size larger than 80 meshes; selecting 10-15 wt% of active carbon particle raw material with the particle size less than or equal to 200 meshes; 70-80 wt% of activated carbon particle raw materials with the meshes of less than or equal to 80 and larger than 200 are selected, wherein the activated carbon particle raw materials with the meshes of less than or equal to 80 and larger than 120 and the activated carbon particle raw materials with the meshes of less than or equal to 120 and larger than 200 respectively account for half of the raw materials.

Optionally, the cross section of the mold cavity of the sintering mold is annular, so that the scale inhibition filter element is in a hollow cylindrical shape.

In order to solve the technical problem, another technical scheme adopted by the embodiment of the invention is to provide a scale inhibition filter element, wherein the scale inhibition filter element is prepared by any one of the methods.

Optionally, the scale inhibitor particles are inorganic phosphates or composite phosphates, the filtering particles are coconut shell particle activated carbon or coal particle activated carbon, and the binder particles are made of ultra-high molecular weight polyethylene.

Optionally, the scale inhibiting filter element has an outer diameter, an inner diameter and a height of 34 mm, 20 mm and 64 mm respectively.

Optionally, the median particle size of the filtering particles is 120 microns.

In order to solve the above technical problem, another technical solution according to an embodiment of the present invention is to provide a filter, including: the scale inhibiting filter element as described in any one of the above; the casing, the casing is provided with inner chamber, water inlet and first delivery port, hinder dirty filter core install in the inner chamber, and will the inner chamber separates for former water cavity and water purification chamber, former water cavity intercommunication the water inlet, water purification chamber intercommunication first delivery port.

Optionally, the housing comprises an upper cover part, a lower cover part and a first sealing ring; the lower shell part is provided with the inner cavity and an opening communicated with the inner cavity, the scale inhibition filter element is accommodated in the inner cavity, a first gap is formed between the outer wall of the scale inhibition filter element and the inner wall of the lower shell part, the first gap forms the raw water cavity, and the hollow interior of the scale inhibition filter element forms the purified water cavity; the water inlet and the first water outlet are both positioned on the upper cover part, an annular groove is formed in the inner surface of the top of the upper cover part and is communicated with the first water outlet, and the upper cover part is covered on the opening of the lower shell part; the first sealing ring is sleeved on the outer surface of the lower shell, and when the upper cover part is arranged on the lower shell, the inner surface of the upper cover part and the outer surface of the lower shell are sealed by the first sealing ring.

Optionally, the lower shell part comprises a lower shell, a partition and a second sealing ring; the lower shell is provided with the inner cavity and an opening communicated with the inner cavity, the scale inhibition filter element is accommodated in the inner cavity, the bottom surface of the inner cavity is provided with an annular bulge, the annular bulge is inserted into the hollow part at one end of the scale inhibition filter element, and the first gap is formed between the outer wall of the scale inhibition filter element and the inner wall of the lower shell; the upper cover part is covered at the opening of the lower shell, and the lower shell is fixed with the upper cover part in a threaded manner; the separator is provided with a communicating channel, the second sealing ring is sleeved at one end of the separator, one end of the separator is inserted into the annular groove, the outer surface of the separator is sealed with the inner surface of the annular groove, the other end of the separator is installed at the other end of the scale inhibition filter element, the communicating channel of the separator is communicated with the first water outlet and the hollow communicating of the scale inhibition filter element, a second gap is formed between the outer surface of the separator and the inner wall of the lower shell and the inner wall of the upper cover, and the second gap is communicated with the first gap and the water inlet respectively.

Optionally, an annular blocking piece extends from the outer surface of the other end of the separator, the other end of the separator is inserted into the hollow of the scale inhibition filter element, and the annular blocking piece abuts against the end of the other end of the scale inhibition filter element; and the inner surface of the separating piece is provided with a first groove which extends vertically, the upper surface of the annular baffle plate is provided with a second groove which extends radially, and the first groove and the second groove are used for water to pass through.

Optionally, the lower shell part further comprises a water passing piece, a sleeve, a first silica gel plug, a second silica gel plug and a sleeve; the water passing piece is arranged at one end of the communicating channel, wherein the water passing piece is provided with a first positioning groove and a plurality of through holes penetrating through the water passing piece, the through holes surround the first positioning groove, and the bottom surface of the inner cavity of the lower shell is provided with a second positioning groove; the first silica gel plug and the second silica gel plug are respectively arranged at two ends of the sleeve, a first positioning bulge extends from one surface of the first silica gel plug, which deviates from the sleeve, a second positioning bulge extends from one surface of the second silica gel plug, which deviates from the sleeve, the first positioning bulge is inserted in the first positioning groove, and the second positioning bulge is inserted in the second positioning groove; the sleeve is sleeved outside the sleeve.

Optionally, the annular groove of the upper cover portion is defined by an annular cylinder, and a positioning sleeve is sleeved outside the annular cylinder and is used for abutting between the inner surface of the top of the upper cover portion and the top end of the lower shell.

Optionally, the lower casing includes a lower casing and a rotating seat of an integrated structure, the rotating seat is connected to the upper end of the lower casing in a sealing manner, and the upper cover is connected to the rotating seat in a threaded manner.

Optionally, the inner surface of the rotary base is provided with a vertically extending third groove for passing water.

Optionally, the water inlet is defined by a water inlet joint, and the water inlet joint comprises an internal threaded hole formed on the upper cover part, a hollow stud screwed into the internal threaded hole, and a nut rotationally fixed on the hollow stud.

Optionally, the upper cover part is further provided with a second water outlet, and the second water outlet is directly communicated with the water inlet.

In order to solve the above technical problem, another technical solution according to an embodiment of the present invention is to provide a water using system, including: a filter and water consuming device as claimed in any preceding claim, the water consuming device having a water inlet; the first water outlet of the filter is communicated with the water inlet of the water using equipment; and the water using equipment comprises a water heater for bathing, an intelligent closestool, a dish washing machine, a washing machine, an ironing machine, a coffee machine or a steam sterilizing machine.

The embodiment of the invention has the beneficial effects that: different from the situation of the prior art, the scale inhibition filter core prepared by the method for preparing the scale inhibition filter core provided by the embodiment of the invention has the advantages of impurity filtering performance and hard water ion scale inhibition performance, and is convenient to assemble and use.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for a person skilled in the art to obtain other drawings based on the drawings without any creative effort.

FIG. 1 is a perspective view of a filter provided by an embodiment of the present invention;

FIG. 2 is a sectional view of a scale inhibiting filter element provided by an embodiment of the invention;

FIG. 3 is an exploded view of a filter provided by an embodiment of the present invention;

FIG. 4 is an exploded view of a filter element assembly provided by an embodiment of the present invention;

FIG. 5 is a top view of a filter provided by an embodiment of the present invention;

FIG. 6 is a cross-sectional view of the filter of FIG. 5 taken along line A-A in accordance with an embodiment of the present invention;

FIG. 7 is a cross-sectional view of the lower housing of the filter provided by an embodiment of the present invention;

FIG. 8 is a perspective view of a divider of the filter provided by embodiments of the present invention;

FIG. 9 is another perspective view of a divider of the filter provided by an embodiment of the present invention;

fig. 10 is a schematic view of a water passing member of the filter according to the embodiment of the present invention.

Description of reference numerals:

Detailed Description

In order to facilitate an understanding of the invention, the invention is described in more detail below with reference to the accompanying drawings and specific examples. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 and 2, the filter 100 includes a scale inhibiting filter element 10 and a housing 20; the scale inhibiting filter element 10 is arranged inside the casing 20.

Referring to fig. 2, the scale inhibiting filter element 10 includes a filter element body 12 and a plurality of scale inhibitor particles 14. Wherein, filter core body 12 is hollow cylinder form, and antisludging agent granule 14 is embedded in filter core body 12, and wherein, filter core body 12 has the clearance space, and the clearance space allows the hydrone to pass through, but not allows impurity to pass through to make antisludging filter core 10 have impurity filtering capability, and antisludging agent granule 14 insoluble inorganic salt in the dispersible water, prevent or disturb insoluble inorganic salt deposit, scale deposit, thereby make antisludging filter core 10 possess hard water antisludging function. In some embodiments, the scale inhibitor particles may have a cross-sectional dimension greater than 180 microns.

Referring to fig. 3 to 6, the housing 20 includes an upper cover portion 21, a lower cover portion 22, and a first sealing ring 23. The upper cover part 21 is covered on the lower shell part 22; the first seal ring 23 is fitted to the outer surface of the lower case 22, and when the upper cover portion 21 is fitted to the lower case 22, the first seal ring 23 seals the inner surface of the upper cover portion 21 and the outer surface of the lower case 22.

The upper cover part 21 is provided with a water inlet 212 and a first water outlet 214, and an inner surface of a top of the upper cover part 21 is provided with an annular groove 216, the annular groove 216 communicating with the first water outlet 214. The water inlet 212 may be defined by a water inlet joint including an internal screw hole 2121 formed on the upper cover portion 21, a hollow stud 2122 screwed into the internal screw hole 2121, and a nut 2123 rotatably fixed to the hollow stud 2122, and the nut 2123 may be screw-coupled to a structure for providing a source of inlet water to implement a water path communication. One or more sealing rings 2124 may be disposed between the hollow stud 2122 and the inner threaded hole 2121; the end of the hollow stud 2122 may be provided with a flange 2125 for interference fit with the nut 2123 such that the nut 2123 can rotate relative to the hollow stud 2122 without falling off the hollow stud 2122; a gasket 2126 may be provided within the nut 2123, the gasket 2126 serving to clamp between the flange 2125 and the structure providing the source of incoming water and serving to prevent water from leaking from the waterway. The upper cover part 21 can also be provided with a second water outlet 215, and the second water outlet 215 can be directly communicated with the water inlet 212, that is, the water entering through the water inlet 212 does not need to be filtered by the scale inhibiting filter element 10, but can be directly output through the second water outlet 215.

The lower case portion 22 includes a lower case 221, a partition 222, a second sealing ring 223, a water passing member 224, a sleeve 225, a first silicone plug 226, a second silicone plug 227, and a sleeve 228. The lower case 221 is connected to the upper lid portion 21; a partition 222 provided in the lower case 221 and connected to the upper cover 21, the partition 222 partitioning the water inlet 212 and the first water outlet 214; a second seal ring 223 is fitted around one end of the partitioning member 222, and when the partitioning member 222 is connected to the upper lid portion 21, the second seal ring 223 seals the partitioning member 222 and the upper lid portion 21; the water passing piece 224 is arranged in the partition piece 222 and is connected with the first silica gel plug 226; the sleeve 225 is disposed inside the hollow core of the filter element body 12, and two ends of the sleeve are respectively connected to the first silica gel plug 226 and the second silica gel plug 227, and connected to the water passing member 224 through the first silica gel plug 226 and connected to the lower housing 221 through the second silica gel plug 227.

Referring to fig. 6 and 7, for the lower casing 221, the lower casing 221 is provided with an inner cavity 2212 and an opening 2213 communicating with the inner cavity 2212, the inner cavity 2212 accommodates the scale inhibiting filter element 10, a first gap 2216 is provided between an outer wall of the filter element body 12 and an inner wall of the lower casing 221, the first gap 2216 forms a raw water cavity 2217, a clear water cavity 2218 is formed in a hollow interior of the filter element body 12, the raw water cavity 2217 communicates with the water inlet 212, the clear water cavity 2218 communicates with the first water outlet 214, and the upper cover 21 is connected to the opening 2213 of the lower casing 221 by a screw thread. The bottom surface of the inner cavity 2212 of the lower shell 221 is provided with an annular protrusion 2214 and a second positioning groove 2215, and when the scale inhibition filter element 10 is accommodated in the inner cavity 2212, the annular protrusion 2214 is inserted into the hollow part at one end of the filter element body 12. Note that, since the scale inhibitor particles 14 are embedded in the filter element body 12, the first gap 2216 between the outer wall of the filter element body 12 and the inner wall of the lower housing 221 is actually the gap between the outer wall of the scale inhibiting filter element 10 and the inner wall of the lower housing 221; this explanation applies to the description of other similar relationships herein.

Referring to fig. 6, 8 and 9, the partition 222 is provided with a communicating passage 2222, the second sealing ring 223 is sleeved at one end of the partition 222, one end of the partition 222 is inserted into the annular groove 216 of the upper cover 21, the second sealing ring 223 seals the outer surface of the partition 222 with the inner surface of the annular groove 216 of the upper cover 21, the other end of the partition 222 is installed at the other end of the cartridge body 12, the communicating passage 2222 of the partition 222 communicates the first water outlet 214 with the clean water chamber 2218, a second gap 2226 is formed between the outer surface of the partition 222 and the inner walls of the lower housing 221 and the upper cover 21, and the second gap 2226 is respectively communicated with the first gap 2216 and the water inlet 212. An annular stop piece 2224 extends from the outer surface of the other end of the partition 222, the other end of the partition 222 is inserted into the hollow of the filter element body 12, and the annular stop piece 2224 abuts against the end of the other end of the filter element body 12. The inner surface of the partition 222 may be provided with a plurality of vertically extending first grooves 2228, and the upper surface of the annular barrier 2224 may be provided with a plurality of radially extending second grooves 2229, and the first grooves 2228 and the second grooves 2229 may be passed through by water.

As shown in fig. 6, the annular groove 216 of the upper cover portion 21 may be defined by an annular cylinder 217. The annular cylinder 217 may be sleeved with a positioning sleeve 218, and the positioning sleeve 218 is used for abutting between the inner surface of the top of the upper cover portion 21 and the top end of the lower shell 221, so that the depth of the lower shell 221 inserted into the upper cover portion 21 is limited by the positioning sleeve 218.

Referring to fig. 3 and 6, the lower housing 221 may include a lower housing 2210 and a rotary holder 2211, which are integrally formed, the rotary holder 2211 being sealingly coupled to an upper end of the lower housing 2210. For example, the upper end of the lower housing 2210 may be formed with an annular groove, and the lower end of the rotary holder 2211 may be formed with an annular insertion portion, which are insertably fitted and sealingly coupled by means of bonding or spin welding. The upper cover portion 21 may be screw-coupled with the rotary holder 2211. As shown in fig. 7, the inner surface of the rotary base 2211 may be provided with a plurality of third grooves 2219 extending vertically, and the third grooves 2219 may be provided with water.

Referring to fig. 6 and 10, the water passing member 224 is installed at one end of the communication passage 2222 of the partition 222, wherein the water passing member 224 is provided with a first positioning groove 2242 and a plurality of through holes 2244 penetrating through the water passing member 224, and the plurality of through holes 2244 surround the first positioning groove 2242.

The sleeve 225 is arranged in the water purifying cavity 2218, the sleeve 225 is an elastic thin-wall cylinder, the sleeve 225 is good in elasticity and large in compression amount, and the effects of relieving water pressure and preventing frost cracking are achieved. For example, the sleeve 225 may be a PU (Polyurethane) tube.

The sleeve 228 is disposed in the clean water cavity 2218 and fits over the sleeve 225. The sleeve 228 may be rigid and may fit over the sleeve 225 to prevent the sleeve 225 from expanding outward and contacting the dirt exclusion filter element 10. In other words, the sleeve 228 is used to extend the clean water cavity 2218 from the lower end of the scale inhibiting filter element 10 to the upper end of the scale inhibiting filter element 10, so that the water filtered by the lower end of the scale inhibiting filter element 10 can be smoothly transported upwards through the clean water cavity 2218. For example, the casing 228 may be a PVC (polyvinyl chloride) pipe.

The first silicone plug 226 and the second silicone plug 227 are respectively mounted at two ends of the sleeve 225, a first positioning protrusion 2262 extends from a surface of the first silicone plug 226 departing from the sleeve 225, a second positioning protrusion 2272 extends from a surface of the second silicone plug 227 departing from the sleeve 225, the first positioning protrusion 2262 is inserted into the first positioning groove 2242 of the water passing member 224, and the second positioning protrusion 2272 is inserted into the second positioning groove 2215 of the lower housing 221.

In addition, as shown in fig. 4, the assembled structure of the scale inhibiting filter element 10, the partition 222, the second sealing ring 223, the water passing member 224, the sleeve 225, the first silica gel plug 226, the second silica gel plug 227 and the sleeve 228 may also be referred to as a filter element assembly.

In the embodiment of the invention, the filter 100 comprises a scale inhibition filter element 10, the scale inhibition filter element 10 comprises a filter element body 12 and a plurality of scale inhibitor particles 14, and the filter element body 12 is in a hollow cylindrical shape and has the performance of filtering impurities; the scale inhibitor particles 14 are embedded in the filter element body 12, and the scale inhibitor particles 14 have hard water ion scale inhibition performance, can disperse insoluble inorganic salts in water, and prevent or interfere precipitation and scaling of the insoluble inorganic salts.

Another embodiment of the present invention further provides a water using system, which includes the filter 100 provided in the above embodiment and a water using apparatus, which has a water inlet, wherein the first water outlet of the filter 100 is communicated with the water inlet of the water using apparatus. For the specific structure and function of the filter 100, reference may be made to the above embodiments, which are not described herein. In some embodiments, the water consuming device may be a bath water heater, a smart toilet, a dishwasher, a washing machine, an ironing machine, a coffee machine, a steam sterilizer, or the like.

For the convenience of the reader to understand the structure of the scale inhibiting filter element 10 in the embodiment of the present invention, some molding processes of the scale inhibiting filter element 10 are described below.

In some embodiments, raw particles of an ultra-high molecular weight high viscosity material (including but not limited to ultra-high molecular weight polyethylene) may be stacked in a product forming mold, a certain amount of scale inhibitor particles 14 are added, and hot-melt sintering is performed in a high temperature environment after stacking into a finished product shape, after sintering, the ultra-high molecular material retains its shape and form, has a structure similar to popcorn, and has a surface with interstitial pores to form the filter element body 12, and just because the filter element body 12 has interstitial pores, liquid and air can pass through, but particles are not allowed to pass through, so that the filter element body 12 has a function of filtering impurities. The main component of the scale inhibitor particles 14 is inorganic phosphate or composite phosphate, and the inorganic phosphate or composite phosphate can disperse the insoluble inorganic salt in water and prevent or interfere the precipitation and scaling of the insoluble inorganic salt, so that the scale inhibiting filter element 10 has a hard water scale inhibiting function.

In other embodiments, the method for manufacturing the scale inhibiting filter element 10 may include the following steps.

Step one, mixing 30-60% by weight of binder particles and 5-20% by weight of scale inhibitor particles for a first time to obtain a first mixture.

Wherein, the first step can comprise: mixing 30 to 60 weight percent of the binder particles with 5 to 20 weight percent of the scale inhibitor particles in a mixer for 7 to 13 minutes. For example, three to six parts of the binder may be taken, about one part of the scale inhibitor is added, and mixed in a mixer, such as a pharmaceutical mixer, for about 10 minutes.

And step two, adding 30-60% by weight of filtering particles into the first mixture and mixing for a second time to obtain a second mixture.

Wherein, the second step can comprise: adding 30 to 60 weight percent of activated carbon particles into the first mixture, and mixing for 12 to 18 minutes by using the mixer. For example, an additional seven to three parts of powdered activated carbon may be added to the first mixture and mixed for an additional 15 minutes, and the mixing is stopped.

It is noted that, when the scale inhibiting filter element 10 only comprises the above-mentioned binder particles, scale inhibitor particles and filtering particles, the sum of the weight ratios of the three components is 100%; for example, 50% by weight of the binder particles, 10% by weight of the scale inhibitor particles, and 40% by weight of the filtering particles may be mixed to fabricate the scale inhibiting filter element 10. In other embodiments, the scale inhibiting filter element 10 can also comprise other components while comprising the above-mentioned binder particles, scale inhibitor particles and filtering particles; in this case, the sum of the weight ratios of the binder particles, the scale inhibitor particles, and the filtering particles may be less than 100%, for example, 80% to 99%.

In addition, after the second step, the method may further include: the first weight of the second mixture was taken out as a sample and the effect of mixing was observed. For example, about 50 grams of the post-mix sample can be taken through the sampling window of the mixer and the mixture observed; the color of the uniformly mixed mixture should be a uniform gray-black color in which white scale inhibitor particles are uniformly mixed in the gray-black mixture due to the relatively large size of the scale inhibitor particles.

And step three, pouring the second mixture into a sintering mold, and molding and sintering to obtain the scale inhibition filter element.

Wherein, the third step may include: assembling an outer core and a lower die of the sintering die; pouring the mixed second mixture into a sintering mold, and covering an upper mold of the sintering mold; maintaining the pressure of the sintering mold for a third time at the first pressure through an air compressor; keeping the temperature in the sintering furnace at the first temperature for a fourth time; placing the air cooler below the air cooler for a fifth time, and cooling the air cooler to a second temperature; and opening the mold, and taking out the scale inhibition filter element. For example, the first pressure may be 20 to 40 kgf, the third time is 10 to 30 seconds, the first temperature is 250 to 300 degrees celsius, the fourth time is 1.5 to 3 hours, the fifth time is 15 to 40 minutes, and the second temperature is 30 to 50 degrees celsius.

By way of example, step three may include: and (3) assembling the outer core and the lower die of the die, pouring the mixed material into a sintering die, covering the upper die, maintaining the pressure for 10-30 seconds under an air compressor with the pressure of about 30 kilo-gram force, fixing a buckle of the upper die, placing the upper die under an air cooler for 15-40 minutes after keeping the temperature of 250-300 ℃ for 1.5-3 hours in a tunnel type sintering furnace, cooling to 30-50 ℃, drawing out the lower die, and then ejecting the outer core and the upper die. In addition, the cross section of the mold cavity of the sintering mold can be annular, so that the scale inhibition filter element is in a hollow cylindrical shape.

In addition, after the third step, the method may further include: and cutting the scale inhibition filter element to obtain the scale inhibition filter element with the first size. For example, a cutter may be used to cut the design size.

By way of example, the manufacturing method of the scale inhibiting filter element 10 may include: mixing 8.4 g of adhesive with 2.8 g of scale inhibitor for 10 minutes, adding 14 g of powdered activated carbon, mixing for 15 minutes, pouring into a mold with the outer diameter of 34 mm, the inner diameter of 20 mm and the height of 70 mm, maintaining the pressure for 15 seconds under the air pressure of 30 kilo-grams, sintering in a tunnel sintering furnace at 250 ℃ for 1.5 hours, cooling to 40 ℃ for 15 minutes under an air cooler, demolding, and cutting into the target size of 34 x 20 x 64 mm.

In some embodiments, the binder particles are screened as follows: screening the raw materials of the adhesive by using 200-mesh and 300-mesh screens respectively; selecting 70-75 wt% of adhesive raw material with a particle size of 200 meshes (75 μm) or less and larger than 300 meshes (48 μm); and 25-30 wt% of adhesive material smaller than 300 meshes is selected. Because the particles are screened by the screen, the size of the screened particles corresponds to the size of the cross section of the particles; for example, for a 200 mesh screen, the mesh size is 75 μm, i.e., particles having a cross-sectional size of 75 μm or less can pass through the mesh of the 200 mesh screen. When the particles are spherical, the cross-sectional dimension may be their diameter; when the particle is in the form of a rod, the cross-sectional dimension may be its cross-sectional length.

For example, after a random portion of binder is obtained, a 200 mesh and 300 mesh sieve is used for screening, and the D50(D50 represents the median size of the screened particles) is 60 plus or minus 5 μm (micrometer), the particles between 200 mesh and 300 mesh account for 70-75% of the total binder content, and the particles smaller than 300 mesh account for 25% -30% of the total binder content. Among them, UHMWPE (ultra high molecular weight polyethylene), which is a typical species of selanies, can be used as a binder.

In some embodiments, the scale inhibitor particles are screened as follows: grinding the scale inhibitor particle raw material; screening with 80 mesh (180 μm) screen; and the raw material of the scale inhibitor particles with the weight ratio of 100 percent and more than 80 meshes is selected.

For example, common scale inhibitors on the market are in the form of round balls, 3-5 mm in size, and elongated bars, 0.5 x 3 mm; in principle, there are inorganic phosphates and composite phosphates. For example, a composite phosphate product from the Siam Fanhua technology engineering Co., Ltd, in the form of elongated particles of 0.5 x 3 mm in size, may be used. The small particle type scale inhibitor suitable for the present invention can be prepared by milling with a mill such as a coffee bean mill, selecting a coarse milling position, and filtering through a 80-mesh screen, wherein 80 mesh or more is 100%.

In some embodiments, the filtering particles are screened as follows: grinding the active carbon particle raw material; screening the milled activated carbon particle raw materials by using 80-mesh, 120-mesh (120 mu m) and 200-mesh screens respectively; selecting 10-15 wt% of active carbon particle raw material with a particle size larger than 80 meshes; selecting 10-15 wt% of active carbon particle raw material with the particle size less than or equal to 200 meshes; 70-80 wt% of activated carbon particle raw materials with the meshes of less than or equal to 80 and larger than 200 are selected, wherein the activated carbon particle raw materials with the meshes of less than or equal to 80 and larger than 120 and the activated carbon particle raw materials with the meshes of less than or equal to 120 and larger than 200 respectively account for half of the raw materials.

For example, commercially available standard coconut shell or coal granular activated carbon, such as 8-14 mesh, 12-30 mesh, 12-40 mesh, etc., can be ground into a powder of a certain size by a mill and sieved with a standard industrial screen using three standard industrial screens, 80 mesh (180 μm), 120 mesh (120 μm), and 200 mesh (75 μm), respectively. The obtained powdered activated carbon has a D50 value of 120 μm, wherein the content of 80 mesh or more is 10-15%, the content of 200 mesh or less is 10-15%, and the content of 80 mesh or less and 200 mesh or more is 70-80%. More specifically, 80-mesh, 120-mesh and 200-mesh screens are commonly used, the 80-mesh screen is used for screening the ground activated carbon particles, the part of the activated carbon particles which cannot pass through the 80-mesh screen accounts for 10-15% of the total activated carbon consumption of the filter element, and the part of the activated carbon particles can be 5-mesh, 10-mesh and 20-mesh screens with the particle size larger than 80-mesh; then, screening the activated carbon particles screened by the 80-mesh screen by using a 200-mesh screen, wherein the screened activated carbon with the particle size of less than 200 meshes is used and accounts for 10-15% of the total amount of the activated carbon used in one filter element; then the sub-active carbon which can be screened by 80 meshes and can not be screened by 200 meshes is screened by a 120-mesh screen and is represented by X when the sub-active carbon is smaller than 80 meshes and larger than 120 meshes, and is represented by Y when the sub-active carbon is smaller than 120 meshes and larger than 200 meshes, and the rest 70-80% of the total active carbon dosage of one filter element is added after being matched by X and Y, wherein the adding amount of X to Y is 1: 1.

It should be noted that the description of the present invention and the accompanying drawings illustrate preferred embodiments of the present invention, but the present invention may be embodied in many different forms and is not limited to the embodiments described in the present specification, which are provided as additional limitations to the present invention and to provide a more thorough understanding of the present disclosure. Moreover, the above technical features are combined with each other to form various embodiments which are not listed above, and all the embodiments are regarded as the scope of the present invention described in the specification; further, modifications and variations will occur to those skilled in the art in light of the foregoing description, and it is intended to cover all such modifications and variations as fall within the true spirit and scope of the invention as defined by the appended claims.

Claims

1. A method for manufacturing a scale inhibition filter element is characterized by comprising the following steps:

mixing 30-60 wt% of binder particles and 5-20 wt% of scale inhibitor particles for a first time to obtain a first mixture;

step two, adding 30-60% of filtering particles by weight into the first mixture and mixing for a second time to obtain a second mixture; and

2. The manufacturing method of the scale inhibiting filter element according to claim 1,

the first step comprises the following steps: mixing 30 to 60 weight percent of the binder particles with 5 to 20 weight percent of the scale inhibitor particles in a mixer for 7 to 13 minutes;

the second step comprises the following steps: adding 30 to 60 weight percent of activated carbon particles into the first mixture, and mixing for 12 to 18 minutes by using the mixer.

3. The manufacturing method of the scale inhibiting filter element according to claim 1,

the third step comprises: assembling an outer core and a lower die of the sintering die; pouring the mixed second mixture into a sintering mold, and covering an upper mold of the sintering mold; maintaining the pressure of the sintering mold for a third time at the first pressure through an air compressor; keeping the temperature in the sintering furnace at the first temperature for a fourth time; placing the air cooler below the air cooler for a fifth time, and cooling the air cooler to a second temperature; and opening the mold, and taking out the scale inhibition filter element.

4. The manufacturing method of the scale inhibiting filter element according to claim 3,

the first pressure is 20 kgf to 40 kgf, the third time is 10 seconds to 30 seconds, the first temperature is 250 degrees celsius to 300 degrees celsius, the fourth time is 1.5 hours to 3 hours, the fifth time is 15 minutes to 40 minutes, and the second temperature is 30 degrees celsius to 50 degrees celsius.

5. The manufacturing method of the scale inhibiting filter element according to claim 1,

the binder particles were screened as follows:

screening the raw materials of the adhesive by using 200-mesh and 300-mesh screens respectively;

selecting 70-75% of adhesive raw materials with the weight ratio of 200 meshes or less and more than 300 meshes; and is

25-30 wt% of adhesive material smaller than 300 meshes is selected.

6. The manufacturing method of the scale inhibiting filter element according to claim 1,

the scale inhibitor particles are screened in the following manner:

grinding the scale inhibitor particle raw material;

screening by using a 80-mesh screen; and is

Selecting the raw materials of the scale inhibitor particles with the weight ratio of 100 percent and more than 80 meshes.

7. The manufacturing method of the scale inhibiting filter element according to claim 1,

the filter particles were screened as follows:

grinding the active carbon particle raw material;

screening the milled activated carbon particle raw materials by using 80-mesh, 120-mesh and 200-mesh screens respectively;

selecting 10-15 wt% of active carbon particle raw material with a particle size larger than 80 meshes;

selecting 10-15 wt% of active carbon particle raw material with the particle size less than or equal to 200 meshes; and is

70-80 wt% of activated carbon particle raw materials with the meshes of less than or equal to 80 and larger than 200 meshes are selected, wherein the activated carbon particle raw materials with the meshes of less than or equal to 80 and larger than 120 meshes and the activated carbon particle raw materials with the meshes of less than or equal to 120 and larger than 200 meshes account for half of the raw materials respectively.

8. The method for manufacturing the scale inhibiting filter element according to any one of claims 1 to 7,

the cross section of the die cavity of the sintering die is annular, so that the scale inhibition filter element is in a hollow cylindrical shape.

9. A scale inhibition filter element is characterized in that:

the scale inhibition filter element is a scale inhibition filter element prepared by the method of any one of claims 1 to 8;

the scale inhibitor particles are inorganic phosphate or composite phosphate, the filtering particles are coconut shell particle activated carbon or coal particle activated carbon, and the material of the adhesive particles is ultrahigh molecular weight polyethylene.

10. A filter, comprising:

the scale inhibiting filter element of claim 9;

the casing, the casing is provided with inner chamber, water inlet and first delivery port, hinder dirty filter core install in the inner chamber, and will the inner chamber separates for former water cavity and water purification chamber, former water cavity intercommunication the water inlet, water purification chamber intercommunication first delivery port.

11. The filter of claim 10, wherein the housing includes an upper cover portion, a lower cover portion, and a first seal ring;

the lower shell is provided with the inner cavity and an opening communicated with the inner cavity, the scale inhibition filter element is accommodated in the inner cavity, a first gap is formed between the outer wall of the scale inhibition filter element and the inner wall of the lower shell, the first gap forms the raw water cavity, and the hollow interior of the scale inhibition filter element forms the purified water cavity;

the water inlet and the first water outlet are both positioned on the upper cover part, an annular groove is formed in the inner surface of the top of the upper cover part and is communicated with the first water outlet, and the upper cover part is covered on the opening of the lower shell part; and is

The first sealing ring is sleeved on the outer surface of the lower shell, and when the upper cover part is arranged on the lower shell, the inner surface of the upper cover part and the outer surface of the lower shell are sealed by the first sealing ring.

12. The filter of claim 11, wherein the lower housing portion comprises a lower housing, a partition, a second seal ring;

the lower shell is provided with the inner cavity and an opening communicated with the inner cavity, the scale inhibition filter element is accommodated in the inner cavity, the bottom surface of the inner cavity is provided with an annular bulge, the annular bulge is inserted into the hollow part at one end of the scale inhibition filter element, and a first gap is formed between the outer wall of the scale inhibition filter element and the inner wall of the lower shell;

the upper cover part is covered at the opening of the lower shell, and the lower shell is fixed with the upper cover part in a threaded manner; and is

The separator is provided with a communicating channel, the second sealing ring is sleeved at one end of the separator, one end of the separator is inserted into the annular groove, the outer surface of the separator is sealed with the inner surface of the annular groove, the other end of the separator is installed at the other end of the scale inhibition filter element, the communicating channel of the separator is communicated with the first water outlet and the hollow communicating of the scale inhibition filter element, a second gap is formed between the outer surface of the separator and the inner wall of the lower shell and the inner wall of the upper cover, and the second gap is communicated with the first gap and the water inlet respectively.

13. The filter of claim 12, wherein an annular blocking piece extends from the outer surface of the other end of the separator, the other end of the separator is inserted into the hollow of the scale inhibiting filter element, and the annular blocking piece abuts against the end part of the other end of the scale inhibiting filter element; and is

The inner surface of the separator is provided with a first groove extending vertically, the upper surface of the annular baffle is provided with a second groove extending radially, and the first groove and the second groove are used for water to pass through.

14. The filter of claim 12, wherein the lower housing portion further comprises a water pass-through, a sleeve, a first silicone plug, a second silicone plug, and a sleeve;

the water passing piece is arranged at one end of the communicating channel, the water passing piece is provided with a first positioning groove and a plurality of through holes penetrating through the water passing piece, the through holes surround the first positioning groove, and the bottom surface of the inner cavity of the lower shell is provided with a second positioning groove;

the first silica gel plug and the second silica gel plug are respectively arranged at two ends of the sleeve, a first positioning bulge extends from one surface of the first silica gel plug, which deviates from the sleeve, a second positioning bulge extends from one surface of the second silica gel plug, which deviates from the sleeve, the first positioning bulge is inserted in the first positioning groove, and the second positioning bulge is inserted in the second positioning groove; and is

The sleeve is sleeved outside the sleeve.

15. The filter of claim 12, wherein the annular groove of the upper cover portion is defined by an annular cylinder that houses a locating sleeve for abutting between an inner surface of the top of the upper cover portion and the top end of the lower housing.

16. A filter according to any one of claims 11-15, characterised in that the upper cover part is further provided with a second water outlet, which is in direct communication with the water inlet.

17. A water use system, comprising:

the filter of any one of claims 10-16; and

a water-using device having a water inlet;

the first water outlet of the filter is communicated with the water inlet of the water using equipment, and the water using equipment comprises a water heater for bathing, an intelligent closestool, a dish washing machine, a washing machine, an ironing machine, a coffee machine or a steam sterilizing machine.