Composite metasilicic acid mineralized filter element profile as well as preparation method and application thereof

Abstract

The invention relates to a composite metasilicic acid mineralized filter element profile as well as a preparation method and application thereof, and relates to the technical field of water purifiers, the composite metasilicic acid mineralized filter element profile is prepared from the following raw materials in parts by weight: 60 to 80 parts of metasilicic acid mineralized carbon material and 20 to 40 parts of bonding material; the metasilicic acid mineralized carbon material is prepared from the following raw materials in parts by weight: 30-60 parts of metasilicic acid mineralized powder, 30-60 parts of activated carbon powder, 0.3-2 parts of an antibacterial agent, 0.2-1 part of a pore forming agent and 0.5-5 parts of a stabilizer. According to the composite metasilicic acid mineralization filter element profile provided by the invention, the formula of the filter material is designed, so that the composite metasilicic acid mineralization filter element profile has a good specific surface area, the contact area between active ingredients such as mineralization materials and water is ensured, the composite metasilicic acid mineralization filter element profile not only has the adsorption, harm removal and impurity removal functions of activated carbon, but also can separate out mineral substances, and is beneficial to realizing stable release of metasilicic acid.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water purifiers, in particular to a composite metasilicate mineralized filter core profile and a preparation method and use thereof. BACKGROUND

[0002] Metasilicic acid belongs to one of the nine trace elements in the national identification of mineral water standards. Metasilicic acid has a protective effect on the cardiovascular system. Silicon elements can enhance the strength of elastic fibers in blood vessels, effectively prevent lipid infiltration, and prevent atherosclerosis. However, due to the limited amount of metasilicic acid precipitated from natural metasilicic acid mineralized material, it is difficult to increase the concentration of metasilicic acid in water.

[0003] Currently, metasilicic acid is introduced into drinking water by grinding metasilicic acid mineralized stones into mineralized powder, which can increase the specific surface area of the material.

[0004] CN103663816A discloses a direct drinking water machine containing metasilicic acid trace elements. The drinking water machine is composed of several ABS engineering plastic pipes connected in series. Each plastic pipe has filter cotton at both ends to isolate the city tap water. The city tap water enters the first pipe containing a melt-blown PP filter stick for rough filtration. The water enters the second pipe containing activated carbon for filtration. The water enters the third pipe containing metasilicic acid particles to mineralize the water. The water enters the fourth pipe containing a melt-blown PP filter stick for fine filtration. The water enters the fifth pipe containing hollow fibers to sterilize the water, and the fifth pipe flows out of the direct drinking water. The metasilicic acid particles are made by melting the following mineral elements at a weight ratio of 50% quartz sand, 30% phosphorus pentoxide, 10% potassium oxide, 5% calcium oxide, and 5% zinc oxide in a 1300-1400℃ high-temperature furnace.

[0005] CN207545993U discloses a composite mineralized filter core, which includes a shell, a front end cover, a rear end cover, metasilicic acid ore, non-woven fabric and coconut shell activated carbon. The metasilicic acid ore is placed in the shell, and the non-woven fabric and the coconut shell activated carbon are sequentially arranged in the shell. The metasilicic acid ore is rich in metasilicic acid, so that the water passing through the metasilicic acid ore is rich in trace elements and has a weak alkaline property.

[0006] However, when metasilicic acid is introduced into drinking water in the form of powder, there are still defects such as fixation, easy loss, and unstable release of metasilicic acid. SUMMARY

[0007] In view of the problems in the prior art, the purpose of the present application is to provide a composite mineralized filter material and a preparation method and use thereof, to solve the defects of fixation, easy loss, and unstable release of metasilicic acid when metasilicic acid is introduced into drinking water in the form of powder.

[0008] To achieve this purpose, the present application adopts the following technical solutions:

[0009] In a first aspect, the present application provides a composite meta-silicic acid mineralized filter core profile, raw materials for preparing the composite meta-silicic acid mineralized filter core profile include, by weight:

[0010] meta-silicic acid mineralized carbon material 60-80 parts, bonding material 20-40 parts;

[0011] The raw materials for preparing the meta-silicic acid mineralized carbon material include, by weight: meta-silicic acid mineralized powder 30-60 parts, activated carbon powder 30-60 parts, antibacterial agent 0.3-2 parts, pore-forming agent 0.2-1 part, stabilizer 0.5-5 parts.

[0012] The composite meta-silicic acid mineralized filter core profile provided by the present application has a good specific surface area by designing the filter material formula, which ensures the contact area of the effective components such as the mineralized material and water, has the functions of adsorbing and removing harmful substances and impurities of activated carbon, and can also precipitate minerals, which is beneficial to realize the stable release of meta-silicic acid.

[0013] As a preferred technical solution of the present application, the bonding material includes one or a combination of at least two of polyethylene, activated carbon fiber or acrylic fiber.

[0014] As a preferred technical solution of the present application, the meta-silicic acid mineralized powder includes sodium feldspar powder and / or potassium feldspar powder with a particle size of ≤74 μm.

[0015] As a preferred technical solution of the present application, the activated carbon powder includes one or a combination of at least two of coconut shell activated carbon, bamboo activated carbon or wood activated carbon.

[0016] And / or, the particle size of the activated carbon powder is ≤74 μm.

[0017] As a preferred technical solution of the present application, the antibacterial agent includes silver-loaded antibacterial agent and / or zinc-loaded antibacterial agent.

[0018] As a preferred technical solution of the present application, the pore-forming agent includes polymethyl methacrylate.

[0019] As a preferred technical solution of the present application, the stabilizer includes one or a combination of at least two of carboxymethyl cellulose salt, cellulose or hydroxymethyl cellulose salt.

[0020] In a second aspect, the present application provides a preparation method of the composite meta-silicic acid mineralized filter core profile according to the first aspect, the preparation method includes:

[0021] According to the weight formula, the meta-silicic acid mineralized powder, the activated carbon powder, the antibacterial agent, the pore-forming agent and the stabilizer are mixed and granulated, and then first calcination and second calcination are sequentially performed to obtain calcined material;

[0022] The obtained calcined material is crushed and sieved in sequence to obtain metasilicate mineralized carbon material, and then the metasilicate mineralized carbon material and a bonding material are mixed and formed to obtain a composite metasilicate mineralized filter core profile.

[0023] As a preferred technical solution of the present application, the particle size of the granulated material is 3-10mm.

[0024] And / or, the holding temperature of the first calcination is 550-650℃.

[0025] And / or, the holding time of the first calcination is 20-40min.

[0026] And / or, the holding temperature of the second calcination is 850-900℃.

[0027] And / or, the holding time of the second calcination is 20-40min.

[0028] In a third aspect, the present application provides a use of the composite metasilicate mineralized filter core profile according to the first aspect, and the use comprises: applying the composite metasilicate mineralized filter core profile to a post-RO end.

[0029] Compared with the prior art, the present application has the following beneficial effects:

[0030] (1) The composite metasilicate mineralized filter core profile provided by the present application is formed by metasilicate mineralized filter material, which ensures sufficient contact between the filter materials and improves the utilization rate between the filter materials. As a reaction unit between individual particles, the effective substance dissolution of the entire filter core is more controllable.

[0031] (2) The composite metasilicate mineralized filter core profile provided by the present application is sintered into a carbon rod filter core through an extrusion / sintering / wet forming process, which not only has the adsorption and impurity removal function of activated carbon, but also can precipitate minerals to mineralize water.

[0032] The present application will be further described in detail below. However, the following examples are only simple examples of the present application and do not represent or limit the protection scope of the present application, and the protection scope of the present application is subject to the claims. DETAILED DESCRIPTION

[0033] In order to better illustrate the present application and facilitate understanding of the technical solutions of the present application, the following is a typical but non-limiting embodiment of the present application:

[0034] I. The present embodiment provides a composite metasilicate mineralized filter core profile, and the preparation raw materials of the composite metasilicate mineralized filter core profile include, by weight:

[0035] 60-80 parts of metasilicate mineralized carbon material and 20-40 parts of bonding material;

[0036] The preparation raw material of the metasilicate mineralized carbon material includes, in parts by weight, metasilicate mineralized powder 30-60 parts, active carbon powder 30-60 parts, antibacterial agent 0.3-2 parts, pore-forming agent 0.2-1 part, and stabilizer 0.5-5 parts.

[0037] In the present application, the shape of the composite metasilicate mineralized filter core profile can be selected as a rod, a column, a spherical material, a honeycomb, and the like.

[0038] In the present application, the metasilicate mineralized carbon material in the preparation raw material of the composite metasilicate mineralized filter core profile is 60-80 parts by weight, for example, 60 parts, 62 parts, 64 parts, 66 parts, 68 parts, 70 parts, 72 parts, 74 parts, 76 parts, 78 parts, or 80 parts, and the like, but is not limited to the listed values, and other values not listed in the range also meet the requirements.

[0039] In the present application, the adhesive material in the preparation raw material of the composite metasilicate mineralized filter core profile is 20-40 parts by weight, for example, 20 parts, 22 parts, 24 parts, 26 parts, 28 parts, 30 parts, 32 parts, 34 parts, 36 parts, 38 parts, or 40 parts, and the like, but is not limited to the listed values, and other values not listed in the range also meet the requirements.

[0040] In the present application, the metasilicate mineralized powder in the preparation raw material of the metasilicate mineralized carbon material is 30-60 parts by weight, for example, 30 parts, 32 parts, 34 parts, 36 parts, 38 parts, 40 parts, 42 parts, 44 parts, 46 parts, 48 parts, 50 parts, 52 parts, 54 parts, 56 parts, 58 parts, or 60 parts, and the like, but is not limited to the listed values, and other values not listed in the range also meet the requirements.

[0041] In the present application, the active carbon powder in the preparation raw material of the metasilicate mineralized carbon material is 30-60 parts by weight, for example, 30 parts, 32 parts, 34 parts, 36 parts, 38 parts, 40 parts, 42 parts, 44 parts, 46 parts, 48 parts, 50 parts, 52 parts, 54 parts, 56 parts, 58 parts, or 60 parts, and the like, but is not limited to the listed values, and other values not listed in the range also meet the requirements.

[0042] In the present application, the antibacterial agent in the preparation raw material of the metasilicate mineralized carbon material is 0.3-2 parts by weight, for example, 0.3 parts, 0.4 parts, 0.5 parts, 0.6 parts, 0.7 parts, 0.8 parts, 0.9 parts, 1 part, 1.1 parts, 1.2 parts, 1.3 parts, 1.4 parts, 1.5 parts, 1.6 parts, 1.7 parts, 1.8 parts, 1.9 parts, or 2 parts, and the like, but is not limited to the listed values, and other values not listed in the range also meet the requirements.

[0043] In the present application, the pore-forming agent in the preparation raw material of the metasilicate mineralized carbon material is 0.2-1 parts by weight, for example, it can be 0.2 parts, 0.3 parts, 0.4 parts, 0.5 parts, 0.6 parts, 0.7 parts, 0.8 parts, 0.9 parts or 1 part, etc., but not limited to the listed values, other unlisted values within the range are also required.

[0044] In the present application, the stabilizer in the preparation raw material of the metasilicate mineralized carbon material is 0.5-5 parts by weight, for example, it can be 0.5 parts, 1 part, 1.5 parts, 2 parts, 2.5 parts, 3 parts, 3.5 parts, 4 parts, 4.5 parts or 5 parts, etc., but not limited to the listed values, other unlisted values within the range are also required.

[0045] The bonding material includes one or a combination of at least two of polyethylene, activated carbon fiber or acrylic fiber.

[0046] For example, the combination of the bonding material includes a combination of polyethylene and activated carbon fiber, a combination of activated carbon fiber and acrylic fiber, and a combination of polyethylene and acrylic fiber.

[0047] In the present application, the molecular weight of the polyethylene used in the bonding material is in the range of 300-4,500 thousand.

[0048] The metasilicate mineralized powder includes sodium feldspar powder and / or potassium feldspar powder with a particle size of ≤74 μm.

[0049] In the present application, the metasilicate mineralized powder can be obtained after impurity removal, crushing, screening, acid washing, water washing and drying; for example, by screening, removing large particle substances such as wood debris, etc., by magnetic attraction, removing metal impurities such as iron filings; acid washing: using hydrochloric acid, such as a 0.1% hydrochloric acid solution, soaking, removing impurities after a certain period of time (such as 1 hour).

[0050] The activated carbon powder includes one or a combination of at least two of coconut shell activated carbon, bamboo activated carbon or wood activated carbon.

[0051] For example, a combination of coconut shell activated carbon and bamboo activated carbon, a combination of bamboo activated carbon and wood activated carbon, and a combination of coconut shell activated carbon and wood activated carbon.

[0052] The particle size of the activated carbon powder is ≤74 μm.

[0053] In the present application, the limitation on particle size refers to a limitation on the aggregation of particles of any particle size within a certain range or the aggregation of all particles within a certain particle size range.

[0054] The antibacterial agent includes a silver-loaded antibacterial agent and / or a zinc-loaded antibacterial agent.

[0055] In the present application, the silver-loaded antibacterial agent used can be selected from commercially available silver-loaded antibacterial agents or can be synthesized by known synthesis methods in the art, wherein the commercially available silver-loaded antibacterial agent is, for example, Xingya PD-601S or Xingya PG-721S.

[0056] In the present application, the zinc-loaded antibacterial agent used can be selected from commercially available zinc-loaded antibacterial agents or can be synthesized by known synthesis methods in the art, wherein the commercially available zinc-loaded antibacterial agent is, for example, Shizuka glass zinc antibacterial agent SR-HM301.

[0057] The pore-forming agent includes polymethyl methacrylate.

[0058] The stabilizer includes one or a combination of at least two of a carboxymethyl cellulose salt, cellulose, or a hydroxymethyl cellulose salt.

[0059] In the present application, the carboxymethyl cellulose salt includes sodium carboxymethyl cellulose, potassium carboxymethyl cellulose, and other commonly used carboxymethyl cellulose salts in the art.

[0060] In the present application, the hydroxymethyl cellulose salt includes sodium hydroxymethyl cellulose, potassium hydroxymethyl cellulose, and other commonly used hydroxymethyl cellulose salts in the art.

[0061] Exemplarily, the combination of the stabilizer used includes a combination of a carboxymethyl cellulose salt and cellulose, a combination of cellulose and a hydroxymethyl cellulose salt, a combination of a carboxymethyl cellulose salt and a hydroxymethyl cellulose salt, and the like.

[0062] Secondly, the present application provides a preparation method of a composite metasilicate mineralized filter core profile, which comprises:

[0063] The metasilicate mineralized powder, activated carbon powder, antibacterial agent, pore-forming agent, and stabilizer are mixed and granulated according to the weight formula, and then first calcination and second calcination are sequentially performed to obtain calcined material;

[0064] The obtained calcined material is sequentially crushed and sieved to obtain metasilicate mineralized carbon material, and then the metasilicate mineralized carbon material and the bonding material are mixed and formed to obtain a composite metasilicate mineralized filter core profile.

[0065] The particle size of the spherical material obtained by granulation is 3-10 mm, for example, it can be 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, or 10 mm, etc., but is not limited to the listed values, and other unlisted values within this range also meet the requirements.

[0066] The holding temperature of the first calcination is 550-650 DEG C, for example, it can be 550 DEG C, 560 DEG C, 570 DEG C, 580 DEG C, 590 DEG C, 600 DEG C, 610 DEG C, 620 DEG C, 630 DEG C, 640 DEG C or 650 DEG C, but is not limited to the listed values, and other values not listed in the range are also required.

[0067] The holding time of the first calcination is 20-40 min, for example, it can be 20 min, 22 min, 24 min, 26 min, 28 min, 30 min, 32 min, 34 min, 36 min, 38 min or 40 min, but is not limited to the listed values, and other values not listed in the range are also required.

[0068] The holding temperature of the second calcination is 850-900 DEG C, for example, it can be 850 DEG C, 855 DEG C, 860 DEG C, 865 DEG C, 870 DEG C, 875 DEG C, 880 DEG C, 885 DEG C, 890 DEG C, 895 DEG C or 900 DEG C, but is not limited to the listed values, and other values not listed in the range are also required.

[0069] The holding time of the second calcination is 20-40 min, for example, it can be 20 min, 22 min, 24 min, 26 min, 28 min, 30 min, 32 min, 34 min, 36 min, 38 min or 40 min, but is not limited to the listed values, and other values not listed in the range are also required.

[0070] In the application, the particle size range of the metasilicate mineralized carbon material can be selected as 0.1-0.42 mm, 0.074-0.18 mm, 0.045-0.18 mm, etc.

[0071] In the application, the mixing and forming method of the metasilicate mineralized carbon material and the bonding material includes extrusion, sintering forming, wet forming, etc., and the material in the required shape such as rod-shaped material, columnar material, spherical material, honeycomb material, etc. is formed, and the specific forming related process is carried out according to the conventional requirements in the field.

[0072] Thirdly, the application provides a use of the composite metasilicate mineralized filter core profile, and the use comprises: applying the composite metasilicate mineralized filter core profile to the RO rear end.

[0073] After the composite metasilicate mineralized filter core profile is applied to the RO rear end in the application, the water treated by RO can be further filtered, and minerals can be precipitated to mineralize the drinking water.

[0074] Four, in order to illustrate the provided composite metasilicic acid mineralization filter core profile can achieve good filter mineralization effect, using the following actual examples are described as follows:

[0075] Example 1

[0076] The present embodiment provides a composite metasilicic acid mineralization filter core profile, the preparation of raw materials of the composite metasilicic acid mineralization filter core profile includes by weight:

[0077] Metasilicic acid mineralization carbon material 70 parts, 30 parts of adhesive material;

[0078] The preparation of raw materials of the metasilicic acid mineralization carbon material includes by weight: metasilicic acid mineralization powder 40 parts, activated carbon powder 40 parts, antibacterial agent 1 part, pore forming agent 0.5 parts, stabilizer 2 parts;

[0079] The adhesive material is activated carbon fiber;

[0080] The metasilicic acid mineralization powder is potassium feldspar powder with a particle size of ≤74 μm;

[0081] The activated carbon powder is bamboo activated carbon with a particle size of ≤74 μm;

[0082] The antibacterial agent is zinc-loaded antibacterial agent (Shizuka glass zinc-based antibacterial agent SR-HM301);

[0083] The pore forming agent is polymethyl methacrylate;

[0084] The stabilizer is cellulose.

[0085] The preparation process is as follows:

[0086] According to the weight formula, the metasilicic acid mineralization powder, activated carbon powder, antibacterial agent, pore forming agent and stabilizer are mixed and granulated, and then first calcination and second calcination are carried out in turn to obtain calcined material;

[0087] The obtained calcined material is crushed and sieved in turn to obtain metasilicic acid mineralization carbon material, and then the metasilicic acid mineralization carbon material and the adhesive material are mixed and formed into a rod shape to obtain a composite metasilicic acid mineralization filter core profile;

[0088] The particle size of the spherical material obtained by granulation is 8 mm;

[0089] The holding temperature of the first calcination is 625℃, and the holding time is 25 min;

[0090] The holding temperature of the second calcination is 860℃, and the holding time is 30 min.

[0091] Example 2

[0092] The embodiment provides a composite metasilicate mineralized filter core profile, and preparation raw materials of the composite metasilicate mineralized filter core profile include the following components in parts by weight:

[0093] Metasilicate mineralized carbon material 65 parts, and bonding material 35 parts;

[0094] Preparation raw materials of the metasilicate mineralized carbon material include the following components in parts by weight: metasilicate mineralized powder 50 parts, active carbon powder 50 parts, antibacterial agent 1.5 parts, pore-forming agent 0.8 parts, and stabilizer 3 parts;

[0095] The bonding material is polyethylene (molecular weight is 2 million);

[0096] The metasilicate mineralized powder is sodium feldspar powder with a particle size of less than or equal to 74 microns;

[0097] The active carbon powder is coconut shell active carbon with a particle size of less than or equal to 74 microns;

[0098] The antibacterial agent is silver-loaded antibacterial agent (Xingya PD-601S);

[0099] The pore-forming agent is polymethyl methacrylate;

[0100] The stabilizer is sodium carboxymethyl cellulose.

[0101] The preparation process is as follows:

[0102] The metasilicate mineralized powder, the active carbon powder, the antibacterial agent, the pore-forming agent and the stabilizer are mixed and granulated according to the formula in parts by weight, and then first calcination and second calcination are sequentially performed to obtain calcined material;

[0103] The obtained calcined material is sequentially crushed and sieved to obtain metasilicate mineralized carbon material, and then the metasilicate mineralized carbon material and the bonding material are mixed and formed into a columnar shape to obtain the composite metasilicate mineralized filter core profile;

[0104] The particle size of the spherical material obtained through the granulation is 6 mm;

[0105] The holding temperature of the first calcination is 600 DEG C, and the holding time is 30 min;

[0106] The holding temperature of the second calcination is 880 DEG C, and the holding time is 25 min.

[0107] Embodiment 3

[0108] The embodiment provides a composite metasilicate mineralized filter core profile, and preparation raw materials of the composite metasilicate mineralized filter core profile include the following components in parts by weight:

[0109] Metasilicate mineralized carbon material 60 parts, and bonding material 40 parts;

[0110] The preparation raw material of the metasilicate mineralized carbon material includes, in parts by weight, metasilicate mineralized powder 30 parts, activated carbon powder 60 parts, antibacterial agent 0.3 parts, pore-forming agent 0.2 parts, and stabilizer 5 parts;

[0111] The bonding material is polyethylene (molecular weight 4.5 million);

[0112] The metasilicate mineralized powder is sodium feldspar powder with a particle size of 20-40 μm;

[0113] The activated carbon powder is wooden activated carbon with a particle size of ≤50 μm;

[0114] The antibacterial agent is silver-loaded antibacterial agent (Xingya PD-601S);

[0115] The pore-forming agent is polymethyl methacrylate;

[0116] The stabilizer is sodium hydroxymethyl cellulose.

[0117] The preparation process is as follows:

[0118] The metasilicate mineralized powder, activated carbon powder, antibacterial agent, pore-forming agent, and stabilizer are mixed and granulated according to the formula in parts by weight, and then first calcination and second calcination are sequentially performed to obtain calcined material;

[0119] The obtained calcined material is sequentially crushed and sieved to obtain metasilicate mineralized carbon material, and then the metasilicate mineralized carbon material and the bonding material are mixed and formed into a columnar shape to obtain a composite metasilicate mineralized filter core profile;

[0120] The particle size of the spherical material obtained by granulation is 10 mm;

[0121] The holding temperature of the first calcination is 650 ℃, and the holding time is 20 min;

[0122] The holding temperature of the second calcination is 850 ℃, and the holding time is 40 min.

[0123] Example 4

[0124] The present embodiment provides a composite metasilicate mineralized filter core profile, and the preparation raw material of the composite metasilicate mineralized filter core profile includes, in parts by weight,

[0125] Metasilicate mineralized carbon material 80 parts and bonding material 20 parts;

[0126] The preparation raw material of the metasilicate mineralized carbon material includes, in parts by weight, metasilicate mineralized powder 60 parts, activated carbon powder 30 parts, antibacterial agent 2 parts, pore-forming agent 1 part, and stabilizer 0.5 part;

[0127] The bonding material is acrylic fiber;

[0128] The metasilicate mineralized powder is potassium feldspar powder with a particle size of 10-20 μm;

[0129] The active carbon powder is coconut shell active carbon with a particle size of 10-50 μm;

[0130] The antibacterial agent is a zinc-loaded antibacterial agent (Ishizuka Zinc Antibacterial Agent SR-HM301);

[0131] The pore-forming agent is polymethyl methacrylate;

[0132] The stabilizer is cellulose.

[0133] The preparation process is as follows:

[0134] The metasilicate mineralized powder, the active carbon powder, the antibacterial agent, the pore-forming agent, and the stabilizer are mixed and granulated according to the weight formula, and then first calcination and second calcination are sequentially performed to obtain a calcined material;

[0135] The obtained calcined material is sequentially subjected to crushing and screening to obtain a metasilicate mineralized carbon material, and then the metasilicate mineralized carbon material and a bonding material are mixed and molded into a rod shape to obtain a composite metasilicate mineralized filter core profile;

[0136] The particle size of the spherical material obtained by granulation is 3 mm;

[0137] The holding temperature of the first calcination is 550°C, and the holding time is 40 min;

[0138] The holding temperature of the second calcination is 900°C, and the holding time is 20 min.

[0139] Example 5

[0140] The difference from Example 1 is only that the first calcination is not performed.

[0141] Example 6

[0142] The difference from Example 1 is only that the second calcination is not performed.

[0143] Comparative Example 1

[0144] The difference from Example 1 is only that the stabilizer is not contained in the preparation raw material of the metasilicate mineralized carbon material.

[0145] Comparative Example 2

[0146] The difference from Example 1 is only that the pore-forming agent is not contained in the preparation raw material of the metasilicate mineralized carbon material.

[0147] Comparative Example 3

[0148] The difference from Example 1 is that the preparation raw material of the metasilicate mineralized carbon material does not contain active carbon powder.

[0149] Comparative Example 4

[0150] The difference from Example 1 is that the weight part of the added stabilizer in the preparation raw material of the metasilicate mineralized carbon material is 10 parts.

[0151] The composite metasilicate mineralized filter core profile obtained in the above examples and comparative examples is used to treat water treated by RO, and the treated water is monitored and analyzed, and the results are shown in Table 1.

[0152] Table 1

[0153]

[0154]

[0155] As shown in Table 1, the scheme provided by the present application controls the particle size of the mineralized filter material, adjusts the contact area between the filter material and water, and the smaller the particle size of the filter material, the greater the contact area with water under the same quality, and the higher the dissolution level. The presence of the pore-forming agent can construct the porous structure on the microstructure of the mineralized filter material and promote the analysis of beneficial components in the filter material. The amount of active carbon powder directly affects the removal effect of residual chlorine. The higher the density of the filter core, the higher the contact level with water, which is more conducive to the adsorption of harmful substances in water by active carbon fibers or active carbon. In summary, by designing the filter material formula, the specific surface area is good, which ensures the contact area between the effective components of the mineralized material and water, has the adsorption and impurity removal function of active carbon, and can also analyze minerals, which is conducive to the stable release of metasilicic acid.

[0156] The above describes the preferred embodiments of the present application, but the present application is not limited to the specific details in the above embodiments. Within the technical concept of the present application, various simple modifications can be made to the technical solutions of the present application, and these simple modifications all belong to the protection scope of the present application.

[0157] In addition, it should be noted that each specific technical feature described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present application will not further describe various possible combinations.

[0158] In addition, various different embodiments of the present application can also be combined in any manner, as long as it does not deviate from the idea of the present application, and it should also be considered as disclosed by the present application.

Claims

1. A composite metasilicic acid mineralized filter element profile, characterized in that: The raw materials for preparing the composite metasilicic acid mineralized filter element profile include, by weight: 60-80 parts of metasilicic acid mineralized carbon material, 20-40 parts of bonding material; The raw materials for preparing the metasilicic acid mineralized carbon material include, by weight, 30-60 parts of metasilicic acid mineralized powder, 30-60 parts of activated carbon powder, 0.3-2 parts of antibacterial agent, 0.2-1 parts of pore-forming agent, and 0.5-5 parts of stabilizer.

2. The composite metasilicic acid mineralized filter element profile according to claim 1, characterized in that: The bonding material includes: one or a combination of at least two of polyethylene, activated carbon fiber or acrylic fiber.

3. The composite metasilicic acid mineralized filter element profile according to claim 1, characterized in that: The metasilicate mineralized powder includes: sodium feldspar powder and / or potassium feldspar powder with a particle size of ≤74 μm.

4. The composite metasilicic acid mineralized filter element profile according to claim 1, characterized in that: The activated carbon powder comprises: one or a combination of at least two of coconut shell activated carbon, bamboo activated carbon or wood activated carbon; And / or, the particle size of the activated carbon powder is ≤74 μm.

5. The composite metasilicic acid mineralized filter element profile according to claim 1, characterized in that: The antibacterial agent includes: a silver-loaded antibacterial agent and / or a zinc-loaded antibacterial agent.

6. The composite metasilicic acid mineralized filter element profile according to claim 1, characterized in that: The pore-forming agent includes polymethyl methacrylate.

7. The composite metasilicic acid mineralized filter element profile according to claim 1, characterized in that: The stabilizer includes: one or a combination of at least two of carboxymethyl cellulose salt, cellulose or hydroxymethyl cellulose salt.

8. A method for preparing the composite metasilicic acid mineralized filter element profile according to any one of claims 1 to 7, characterized in that: The preparation method comprises: Metasilicic acid mineralized powder, activated carbon powder, antibacterial agent, pore-forming agent and stabilizer are mixed and granulated according to a weight ratio, and then a first calcination and a second calcination are performed in sequence to obtain a calcined material; The obtained calcined material is crushed and sieved in sequence to obtain metasilicate mineralized carbon material, and then the metasilicate mineralized carbon material and a bonding material are mixed and formed to obtain a composite metasilicate mineralized filter element profile.

9. The preparation method according to claim 8, wherein The particle size of the pellets obtained by granulation is 3-10 mm; and / or, the holding temperature of the first calcination is 550-650° C.; And / or, the holding time of the first calcination is 20-40 min; and / or, the holding temperature of the second calcination is 850-900° C.; And / or, the holding time of the second calcination is 20-40 minutes.

10. Use of the composite metasilicic acid mineralized filter element profile according to any one of claims 1 to 7, characterized in that: The application includes: applying the composite metasilicic acid mineralized filter element profile to the RO back end.

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