CN108997024A - A kind of ceramic element and its production method of composite diatomite active carbon - Google Patents

A kind of ceramic element and its production method of composite diatomite active carbon Download PDF

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Publication number
CN108997024A
CN108997024A CN201710425490.3A CN201710425490A CN108997024A CN 108997024 A CN108997024 A CN 108997024A CN 201710425490 A CN201710425490 A CN 201710425490A CN 108997024 A CN108997024 A CN 108997024A
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active carbon
filter core
parts
diatomite
ceramic element
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杜嘉愚
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Ningbo Shimizu Environmental Protection Technology Co Ltd
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Ningbo Shimizu Environmental Protection Technology Co Ltd
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Priority to CN201710425490.3A priority Critical patent/CN108997024A/en
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    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/08—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding porous substances
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B01D39/2068—Other inorganic materials, e.g. ceramics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
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    • C04B35/632—Organic additives
    • C04B35/634—Polymers
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    • C04B38/06—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances
    • C04B38/063—Preparing or treating the raw materials individually or as batches
    • C04B38/0635—Compounding ingredients
    • C04B38/0645—Burnable, meltable, sublimable materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
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    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
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    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
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    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
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    • C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
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Abstract

The invention discloses the ceramic elements and its production method of a kind of composite diatomite active carbon, its key points of the technical solution are that: the filter core is made of following raw material components, the mass fraction of each raw material component and each raw material component are as follows: 80 ~ 90 parts of diatomite, 8 ~ 15 parts of active carbon, 3 ~ 5 parts of polyvinyl alcohol, 2 ~ 3 parts of calcite, 2 ~ 3 parts of carclazyte powder, 2 ~ 3 parts of dolomite, 2 ~ 3 parts of pore creating material, promote to burn 0.5 ~ 1.0 part of agent, by half it is dry-pressing formed after, silt in water body can be removed by having reached, iron rust isocolloid substance, improve water turbidity, water body chlorine residue can be removed, make the pH value of water body alkalinity on the weak side, more adapt to the effect of the interior environment of human body.

Description

A kind of ceramic element and its production method of composite diatomite active carbon
Technical field
The present invention relates to filter core field, in particular to a kind of the ceramic element and its producer of composite diatomite active carbon Method.
Background technique
Water is Source of life, closely bound up with people's health, and with the development of economy, requirement of the people to water quality is more next It is higher.But due to the Devoting Major Efforts To Developing of the fast development of industry and mining industry, whole nation major part earth's surface source quality deteriorates in continuous Trend.
Filter is installed in the lower section of Household water tap, can effectively be intercepted remaining organic in bacterium and absorption water Object, heavy metal ion, improve the quality and mouthfeel of drinking water, and remain the necessary microelement of human body.Currently on the market There are two major classes faucet water-purifying filter filter cores: hollow fiber membrane cartridge and ceramic membrane filter core.Though hollow fiber membrane cartridge water purification Right flux is high, and production cost is low, but hollow-fibre membrane is increase with time, and organic moiety dissolution will lead to filter opening aperture and gradually add Greatly, filter effect is caused to reduce；Hollow fiber cartridge can not solve bacterium breeds in filter core and cause drinking water two simultaneously Secondary pollution problem.Compared with hollow fiber membrane cartridge, ceramic membrane filter core aperture size is stablized, and will not lead to filter opening because of long-time service Diameter increase；Therefore, ceramic element is preferably as below tap.
Ceramic element, using diatomite as primary raw material, porous filtering product is formed by high temperature sintering as one kind, Since its aperture size is stablized, filter opening will not be caused to influence filter effect because using the time to increase, therefore be widely used in In the purification of domestic water.
Patent if Authorization Notice No. is CN104193400B discloses a kind of diatomite/zeolite/active carbon MULTILAYER COMPOSITE Diatomite, zeolite, active carbon, binder, water stirring are kneaded into pug, in mold after curing by the preparation method of ceramic element Interior roll-forming obtains green compact, then dries after demoulding；By diatomite, water, flocculant, stabilizer ball milling, slurry is obtained, is applied after curing Green compact surfaces externally and internally is overlayed on, is cooled down after sintering to get product.Zeolite is added, the zeolite ratio in ceramic element is greater than 40%, Improve the efficiency of filter core Adsorption heavy metal.Using roll-forming improving production efficiency, loss is reduced, cost is reduced, increased Filter core idiosome compactness promotes filer element strength.Raw embryo is inside and outside to coat diatomite, can form micro-filtration film layer in favor of external coating filter core Cleaning after pollution restores, prolonging service life of filter elements, but can single diatomite form good skeletal support and improve filter Core integral strength.It can remove particle, microorganism etc. and retain the necessary microelement of human body.
However it is more such as oxygen in addition to also containing containing silt, dissolved organic matter, dissolubility ion etc. in general tap water The dissolved gas such as gas, carbon dioxide, due to the presence of carbon dioxide solubility gas, meeting and water power from generate hydrogen radical yin from Son breaks the acid-base balance in water, and leading to water outlet is faintly acid.
Summary of the invention
The first purpose of the invention is to provide a kind of ceramic elements of composite diatomite active carbon, can adjust in water body Acid-base balance, make to be in alkalescent by the pH value of the tap water of filter element filtering, make the water outlet pH value of tap water closer to people The interior environment pH-value of body.
Above-mentioned technical purpose of the invention has the technical scheme that
A kind of ceramic element of composite diatomite active carbon, the filter core are made of following raw material components, each raw material component and each The mass fraction of raw material components are as follows: 80~90 parts of diatomite, 8~15 parts of active carbon, 3~5 parts of polyvinyl alcohol, calcite 2~3 Part, 2~3 parts of carclazyte powder, 2~3 parts of dolomite, 2~3 parts of pore creating material promote to burn 0.5~1.0 part of agent.
By using above-mentioned technical proposal, based on diatomite porosity is big, distribution of pores is stable, adsorption capacity is strong, chemistry Property is stablized, and can be used as the matrix of ceramic element, in conjunction with other filtrates, filters out insoluble impurities, the suspension colloid grain in water body The harmful substances such as son, heavy metal ion, bacterium；Active carbon is by the resulting amorphous carbon of working process, in this activation process In, huge surface area and complicated pore structure gradually form, and have very big specific surface area, and chemical property is stablized, machine Tool intensity is high, and acidproof, alkaline-resisting, heat-resisting, not soluble in water and organic solvent can be effectively removed coloration, stink, and removable second level goes out Most organic pollutants and certain inorganic matters in water to inorganic in gas, solution or have comprising certain toxic heavy metals Machine substance and colloidal solid etc. have good adsorption capacity；Calcite, carclazyte powder, dolomite are calcium carbonate minerals, can While increasing water body content of mineral substances, the content of bicarbonate radical in water is improved, to promote to ionize, reduces the hydrogen in water Root makes the pH value of water body alkalinity on the weak side to change the pH value of water body, more adapts to the interior environment of human body, makes water body more It is suitable for drinking, while water body chlorine residue can be removed, and calcite, carclazyte powder, dolomite are trigonal system, but there are one for crystal Fixed difference is conducive to molding；The addition of pore creating material can make in forming ceramic that there are enough hole configurationss, to reach enough Filtration flux；The addition for promoting to burn agent can be improved ratio of briquetting, increase the structural strength of filter core after molding；Alcohol with it is PVA mixed Conjunction is added, as in forming process wetting agent and adhesive make inviscid or sticky lesser ceramic raw material aggregation Wetting is bonded to generate the viscosity of sufficient intensity in favor of filter core finished product is made, through this molding filter core, can be removed in water body Silt, iron rust isocolloid substance improve water turbidity, can remove water body chlorine residue, make the pH value of water body alkalinity on the weak side, more Adapt to the interior environment of human body.
Preferably, the diatomite originates from Changbai mountain, Jilin, aluminium oxide in diatomite, titanium oxide content account for respectively always 5% or more of body content, the content of Free quartz are less than the 0.5% of overall content.
By using above-mentioned technical proposal, the diatomite of Changbai mountain products is high-quality diatomite, salic, oxidation Titanium, organic matter is more, less containing Free quartz, thus plasticity is good, strong adsorption force, and refractoriness is high, and being not required to eluriate i.e. can be used, Green strength is high.
Preferably, the active carbon is blended by cocoanut active charcoal with mineral raw material active carbon according to mass ratio for 2: 1 It compounds.
By using above-mentioned technical proposal, cocoanut active charcoal is former using the high-quality cocoanut shell on the ground such as Hainan, Southeast Asia as raw material Material by screening, vapor carbonization after refinement treatment, then cleaned again, activate screening etc. series of processes be made.Coconut husk Active carbon is black particle shape, has that flourishing pore structure, adsorption capacity are high, intensity is big, stable chemical performance, prolonged resistance to With can effectively adsorb free chlorine, phenol, sulphur and the other organic pollutants in water, the especially predecessor of mutagen (THM) Matter reaches purification and impurity removal and removes peculiar smell, and mouthfeel is drunk in improvement, mineral raw material active carbon and minerals it is compound after, can mention significantly Its absorption property is risen, the active carbon after compounding can either improve mouthfeel, and reach compared to single cocoanut active charcoal more The adsorption effect added.
Preferably, the mineral raw material active carbon contains the medical stone for accounting for mineral raw material active carbon gross mass 20% Powder, and account for the kaolin of mineral raw material active carbon gross mass 5%.
By using above-mentioned technical proposal, medical stone powder is that mineral raw material has active carbon after kaolin is compound Toughness more preferably with the caking property of other raw materials improves ratio of briquetting, meanwhile, medical stone can equally play purifying water body effect.
Preferably, the pore creating material is swollen starches.
By using above-mentioned technical proposal, swollen starches water-swellable in sintering procedure plays the effect of reaming.
Preferably, it is chrome green that the rush, which burns agent,.
By using above-mentioned technical proposal, chrome green can be improved ratio of briquetting as burning agent is promoted, and filter after increasing molding The structural strength of core, while promoting the reflecting feel on surface.
A second object of the present invention is to provide a kind of ceramic elements of composite diatomite active carbon, instead of existing slip casting The method of forming simplifies production process.
Above-mentioned technical purpose of the invention has the technical scheme that
A kind of production method of the ceramic element of composite diatomite active carbon, includes the following steps:
(1) diatomite, active carbon, calcite, carclazyte powder, dolomite, pore creating material, rush are burnt into agent, are added in high-speed mixer Carry out dry powder mixed at high speed；
(2) after being pre-mixed alcohol and polyvinyl alcohol uniformly, high mixer is added and is stirred, then addition accounts for total addition ingredient The water of gross weight 0.35~0.45, high-speed stirred is uniform, forms half dry powder；
(3) half dry powder obtained by step (2) is crossed into 40 meshes and obtains half dry powder particle；
(4) by half dry powder particle obtained by step (3) fill in mold half it is dry-pressing formed after obtain filter core green compact, by filter core green compact It is placed in the case full of Powdered Activated Carbon, and is sealed case with lid, sealed between lid and case with clay, make filter core Green compact are in closed space；
(5) it vacuumizes to build vacuum atmosphere or be filled with nitrogen in firing and builds reducing atmosphere, gained filter core in step (4) is raw Base 940 DEG C of firings under vacuum or reducing atmosphere, obtain filter core crude green body；
(6) filter core crude green body in step (5) is examined by polishing and obtains filter core finished product.
By using above-mentioned technical proposal, pressure needed for half dry-pressing formed filter core is much smaller than dry-pressing formed filter core, can To reduce energy consumption；And in the filter core using dry-pressing formed compacting, after removing pressure, air automatic expansion in filter core is easy to produce A possibility that raw crack, for half dry-pressing formed filter core since required pressure is small, air automatic expansion rate is low, generates crack is also remote small In dry-pressing formed, the yield rate of filter core can be improved；Half dry powder obtained after 40 meshes is crossed with half dry powder that above-mentioned steps obtain Particle is identical as mist projection granulating, it is possible to reduce the step of mist projection granulating, saves cost of labor and equipment cost, while can drop Temperature is controlled at 940 DEG C, avoids diatomite and other powders because leading to micropore because of high temperature sintering by low forming temperature It collapses, and then improves the filter effect and filtering accuracy of filter core.
Preferably, firing is preheated to 60~70 DEG C, and firing is fired filter core green compact process and adopted in step (5) sintering procedure With temperature-gradient method, every section of temperature and heating-up time are as follows: preheating temperature elevation to 200 DEG C of cost 3h；200 DEG C are promoted to 700 DEG C Spend 3h；700 DEG C are promoted to 940 DEG C of cost 3h；940 DEG C of heat preservation 1.5h.
It steam the moisture in filter core green compact will not too fast slowly during heating by using above-mentioned technical proposal, Crack is avoided the occurrence of, when 200~700 DEG C, decomposes pore creating material and organic matter, is finally formed in 940 DEG C of heat preservations.
Preferably, the filter core green compact firing in the step (5) is after 940 DEG C of heat preservation 1.5h, cooled to room temperature Filter core crude green body is taken out afterwards.
By using above-mentioned technical proposal, natural cooling avoids chilling from causing crack.
Preferably, the inner wall of mold is coated with release agent in the step (4), the release agent is by following components group At the mass fraction of each component and each component is diesel oil: peanut oil=1: 4.
By using above-mentioned technical proposal, release agent can be such that ceramic green easily takes off out of mold, not will cause One face part adhesive of filter core towards mold can not deviate from the case where causing green compact to be scrapped on mold, improve the success of molding Rate, meanwhile, release agent can also play the role of protecting mold.
In conclusion the invention has the following advantages:
1, the ceramic element avoids the excessively high caused micropore of firing temperature and contracts and collapse by controlling firing temperature at 940 DEG C, into And micropore amount and flux after ceramic element molding are ensured；
2, the ceramic element is dry-pressing formed by half, compared to injection moulding, saves process, improves production efficiency；
3, the ceramic element passes through the addition of calcite, carclazyte powder, dolomite, has the characteristics that improve water pH value, and then make Water body by the filter element filtering is more suitable for drinking；
4, the ceramic element can remove silt in water body, iron rust isocolloid substance, improve water turbidity, can remove more than water body Chlorine has ensured water body safety；
5, the ceramic element cocoanut active charcoal is compounded with mineral raw material active carbon, and adds kaolin, improve active carbon with Caking property between ceramic raw material, while water body can be made to have and preferably drink mouthfeel.
Detailed description of the invention
Fig. 1 is the heating curve figure of firing.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
Choose the diatomite for originating from Changbai mountain, Jilin, aluminium oxide in diatomite, titanium oxide content account for overall content respectively 5% or more, the content of Free quartz is less than the 0.5% of overall content.
Will containing mass ratio be 5% kaolin, 20% medical stone mineral raw material active carbon with by Hainan cocoanut shell system At cocoanut active charcoal according to mass ratio be 1: 2 mixing.
Diesel oil and peanut oil are mixed and made into release agent according to mass ratio for 1: 4.
Embodiment one
(1) by 80 parts of diatomite, 8 parts of active carbon, 2 parts of calcite, 2 parts of carclazyte powder, 2 parts of dolomite, 2 parts of swollen starches, three oxygen Change 0.5 part of two chromium, is added to progress dry powder mixed at high speed in high-speed mixer；
(2) 3 parts of polyvinyl alcohol are weighed, by alcohol and polyvinyl alcohol according to mass ratio be 1: 1 after mixing, be added high mixer into Row stirring, then addition accounts for the water of total gross weight 0.35 that ingredient is added, and high-speed stirred is uniform, forms half dry powder；
(3) half dry powder obtained by step (2) is crossed into 40 meshes and obtains half dry powder particle；
(4) by half dry powder particle obtained by step (3) fill in mold half it is dry-pressing formed after obtain filter core green compact, by filter core green compact It is placed in the case full of Powdered Activated Carbon, and is sealed case with lid, sealed between lid and case with clay, make filter core Green compact are in closed space；
(5) it vacuumizes to build vacuum atmosphere or be filled with nitrogen in firing and builds reducing atmosphere, firing is preheated to 60 DEG C, will be walked Suddenly
(4) gained filter core green compact are sent into firing and are fired in, preheating temperature elevation to 200 DEG C of cost 3h；200 DEG C are promoted to 700 DEG C of cost 3h；700 DEG C are promoted to 940 DEG C of cost 3h；940 DEG C of heat preservation 1.5h, firing molding, obtain filter core crude green body；
(6) after cooled to room temperature, filter core crude green body in step (5) is examined by polishing and obtains filter core finished product.
Embodiment two
(1) by 90 parts of diatomite, 15 parts of active carbon, 3 parts of calcite, 3 parts of carclazyte powder, 3 parts of dolomite, 3 parts of swollen starches, three oxygen Change 1.0 parts of two chromium, is added to progress dry powder mixed at high speed in high-speed mixer；
(2) 5 parts of polyvinyl alcohol are weighed, by alcohol and polyvinyl alcohol according to mass ratio be 1: 1 after mixing, be added high mixer into Row stirring, then addition accounts for the water of total gross weight 0.45 that ingredient is added, and high-speed stirred is uniform, forms half dry powder；
(3) half dry powder obtained by step (2) is crossed into 40 meshes and obtains half dry powder particle；
(4) by half dry powder particle obtained by step (3) fill in mold half it is dry-pressing formed after obtain filter core green compact, by filter core green compact It is placed in the case full of Powdered Activated Carbon, and is sealed case with lid, sealed between lid and case with clay, make filter core Green compact are in closed space；
(5) construction vacuum atmosphere being vacuumized in firing or being filled with nitrogen, build reducing atmosphere, firing is preheated to 70 DEG C, it will Gained filter core green compact are sent into firing and are fired in step (4), preheating temperature elevation to 200 DEG C of cost 3h；200 DEG C are promoted to 700 DEG C of cost 3h；700 DEG C are promoted to 940 DEG C of cost 3h；940 DEG C of heat preservation 1.5h, firing molding, obtain filter core crude green body；
(6) after cooled to room temperature, filter core crude green body in step (5) is examined by polishing and obtains filter core finished product.
Embodiment three
(1) by 85 parts of diatomite, 10 parts of active carbon, 2 parts of calcite, 2 parts of carclazyte powder, 2 parts of dolomite, 3 parts of swollen starches, three oxygen Change 0.6 part of two chromium, is added to progress dry powder mixed at high speed in high-speed mixer；
(2) 4 parts of polyvinyl alcohol are weighed, by alcohol and polyvinyl alcohol according to mass ratio be 1: 1 after mixing, be added high mixer into Row stirring, then addition accounts for the water of total gross weight 0.4 that ingredient is added, and high-speed stirred is uniform, forms half dry powder；
(3) half dry powder obtained by step (2) is crossed into 40 meshes and obtains half dry powder particle；
(4) by half dry powder particle obtained by step (3) fill in mold half it is dry-pressing formed after obtain filter core green compact, by filter core green compact It is placed in the case full of Powdered Activated Carbon, and is sealed case with lid, sealed between lid and case with clay, make filter core Green compact are in closed space；
(5) construction vacuum atmosphere being vacuumized in firing or being filled with nitrogen, build reducing atmosphere, firing is preheated to 65 DEG C, it will Gained filter core green compact are sent into firing and are fired in step (4), preheating temperature elevation to 200 DEG C of cost 3h；200 DEG C are promoted to 700 DEG C of cost 3h；700 DEG C are promoted to 940 DEG C of cost 3h；940 DEG C of heat preservation 1.5h, firing molding, obtain filter core crude green body；
(6) after cooled to room temperature, filter core crude green body in step (5) is examined by polishing and obtains filter core finished product.
Example IV
(1) by 90 parts of diatomite, 10 parts of active carbon, 2 parts of calcite, 2 parts of carclazyte powder, 2 parts of dolomite, 2 parts of swollen starches, three oxygen Change 0.7 part of two chromium, is added to progress dry powder mixed at high speed in high-speed mixer；
(2) 3 parts of polyvinyl alcohol are weighed, by alcohol and polyvinyl alcohol according to mass ratio be 1: 1 after mixing, be added high mixer into Row stirring, then addition accounts for the water of total gross weight 0.4 that ingredient is added, and high-speed stirred is uniform, forms half dry powder；
(3) half dry powder obtained by step (2) is crossed into 40 meshes and obtains half dry powder particle；
(4) by half dry powder particle obtained by step (3) fill in mold half it is dry-pressing formed after obtain filter core green compact, by filter core green compact It is placed in the case full of Powdered Activated Carbon, and is sealed case with lid, sealed between lid and case with clay, make filter core Green compact are in closed space；
(5) construction vacuum atmosphere being vacuumized in firing or being filled with nitrogen, build reducing atmosphere, firing is preheated to 70 DEG C, it will Gained filter core green compact are sent into firing and are fired in step (4), preheating temperature elevation to 200 DEG C of cost 3h；200 DEG C are promoted to 700 DEG C of cost 3h；700 DEG C are promoted to 940 DEG C of cost 3h；940 DEG C of heat preservation 1.5h, firing molding, obtain filter core crude green body；
(6) after cooled to room temperature, filter core crude green body in step (5) is examined by polishing and obtains filter core finished product.
Embodiment five
(1) by 82 parts of diatomite, 13 parts of active carbon, 2 parts of calcite, 3 parts of carclazyte powder, 2 parts of dolomite, 3 parts of swollen starches, three oxygen Change 0.8 part of two chromium, is added to progress dry powder mixed at high speed in high-speed mixer；
(2) 3 parts of polyvinyl alcohol are weighed, by alcohol and polyvinyl alcohol according to mass ratio be 1: 1 after mixing, be added high mixer into Row stirring, then addition accounts for the water of total gross weight 0.4 that ingredient is added, and high-speed stirred is uniform, forms half dry powder；
(3) half dry powder obtained by step (2) is crossed into 40 meshes and obtains half dry powder particle；
(4) by half dry powder particle obtained by step (3) fill in mold half it is dry-pressing formed after obtain filter core green compact, by filter core green compact It is placed in the case full of Powdered Activated Carbon, and is sealed case with lid, sealed between lid and case with clay, make filter core Green compact are in closed space；
(5) construction vacuum atmosphere being vacuumized in firing or being filled with nitrogen, build reducing atmosphere, firing is preheated to 68 DEG C, it will Gained filter core green compact are sent into firing and are fired in step (4), preheating temperature elevation to 200 DEG C of cost 3h；200 DEG C are promoted to 700 DEG C of cost 3h；700 DEG C are promoted to 940 DEG C of cost 3h；940 DEG C of heat preservation 1.5h, firing molding, obtain filter core crude green body；
(6) after cooled to room temperature, filter core crude green body in step (5) is examined by polishing and obtains filter core finished product.
5 batches of finished product filter cores are made in above-described embodiment, every batch of extracts 10 as a grouping, carries out the survey of filter core performance It is fixed:
1, by range estimation combine dimensional measuring instrument judge, if surface occur layer split or depth be greater than 2mm crack, not conform to Lattice product；
2, occur being connected with the crack of filter core upper and lower end face and measuring compression strength by pressing to filter core to side wall, by every group of number According to being averaged；
3, the aperture of every group of ceramic element is measured by inside diameter measurement tester and be averaged；
4, after each filter core being impregnated 30min with municipal water, naturally dry filters 10min municipal water, when recording spent Between, take the average value of the rate of filtration of every group of ceramic element as the rate of filtration of filter core；
5,5L municipal water is taken, its pH value is measured and obtains 6.72, after it is separated by every group of 1L, is filtered, is being measured with filter core The pH value of water body after filtering.
Test result see the table below:
Embodiment one Embodiment two Embodiment three Example IV Embodiment five
Yield rate/% 100 100 100 100 100
Resistance to compression degree/MPa 10.05 10.18 9.89 10.65 10.27
Aperture/μm 0.12 0.11 0.11 0.10 0.12
The rate of filtration/L/h 3.25 3.42 3.37 3.54 3.52
PH value 7.28 7.52 7.35 7.40 7.45
To sum up, selection example four is used as optimum embodiment.
Comparative example one
Comparative example one is that example IV does not add filter core obtained by calcite.
Comparative example two
Comparative example two is that example IV does not add filter core obtained by carclazyte powder.
Comparative example three
Comparative example three is that example IV does not add filter core obtained by dolomite.
Comparative example four
Comparative example four is that example IV does not add calcite, carclazyte powder, filter core obtained by dolomite.
Comparative example five
Comparative example five is the ceramic element that commercially available aperture is 0.1 μm.
Above-mentioned filter core is equally subjected to above-mentioned performance test.
Test result see the table below:
Comparative example one Comparative example two Comparative example three Comparative example four Comparative example five Example IV
Yield rate/% 100 100 100 100 / 100
Resistance to compression degree/MPa 10.62 1.62 1.61 1.55 1.28 10.65
Aperture/μm 0.10 0.10 0.10 0.10 0.10 0.10
The rate of filtration/L/h 3.54 3.54 3.54 3.54 3.12 3.54
PH value 7.22 7.13 7.28 6.81 6.92 7.40
To sum up, which has preferable effect of resist compression, and high mechanical strength is not easily broken, and filtering accuracy is high, flux Greatly, the rate of filtration is fast, and can adjust the pH of municipal water, makes its alkalinity on the weak side, to make ring in water body more biasing person of modern times body Border is drunk suitable for human body.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this All by the protection of Patent Law in the scope of the claims of invention.

Claims (10)

1. a kind of ceramic element of composite diatomite active carbon, which is characterized in that the filter core is made of following raw material components, each original Expect the mass fraction of component and each raw material component are as follows: 80 ~ 90 parts of diatomite, 8 ~ 15 parts of active carbon, 3 ~ 5 parts of polyvinyl alcohol, side It solves 2 ~ 3 parts of stone, 2 ~ 3 parts of carclazyte powder, 2 ~ 3 parts of dolomite, 2 ~ 3 parts of pore creating material, promote to burn 0.5 ~ 1.0 part of agent.
2. a kind of ceramic element of composite diatomite active carbon according to claim 1, which is characterized in that the diatomite Originate from Changbai mountain, Jilin, aluminium oxide in diatomite, titanium oxide content account for 5% or more of overall content respectively, Free quartz contains Amount is less than the 0.5% of overall content.
3. a kind of ceramic element of composite diatomite active carbon according to claim 1, which is characterized in that the active carbon It is compounded by cocoanut active charcoal with mineral raw material active carbon according to mass ratio for 2:1 blending.
4. a kind of ceramic element of composite diatomite active carbon according to claim 3, which is characterized in that the minerals Raw material active carbon contains the medical stone powder for accounting for mineral raw material active carbon gross mass 20%, and accounts for mineral raw material active carbon The kaolin of gross mass 5%.
5. a kind of ceramic element of composite diatomite active carbon according to claim 1, which is characterized in that the pore creating material For swollen starches.
6. a kind of ceramic element of composite diatomite active carbon according to claim 1, which is characterized in that the rush burns agent For chrome green.
7. a kind of production method of the ceramic element of composite diatomite active carbon according to claim 1-6, It is characterized in that, includes the following steps:
(1) diatomite, active carbon, calcite, carclazyte powder, dolomite, pore creating material, rush are burnt into agent, are added in high-speed mixer Carry out dry powder mixed at high speed；
(2) after being pre-mixed alcohol and polyvinyl alcohol uniformly, high mixer is added and is stirred, then addition accounts for total addition ingredient The water of gross weight 0.35 ~ 0.45, high-speed stirred is uniform, forms half dry powder；
(3) half dry powder obtained by step (2) is crossed into 40 meshes and obtains half dry powder particle；
(4) by half dry powder particle obtained by step (3) fill in mold half it is dry-pressing formed after obtain filter core green compact, by filter core green compact It is placed in the case full of Powdered Activated Carbon, and is sealed case with lid, sealed between lid and case with clay, make filter core Green compact are in closed space；
(5) firing vacuumize perhaps be filled with nitrogen build reducing atmosphere by gained filter core green compact in step (4) in vacuum or The lower 940 DEG C of firings of reducing atmosphere, obtain filter core crude green body；
(6) filter core crude green body in step (5) is examined by polishing and obtains filter core finished product.
8. a kind of production method of the ceramic element of composite diatomite active carbon according to claim 7, which is characterized in that In step (5) sintering procedure, firing is preheated to 60 ~ 70 DEG C, and firing fires filter core green compact process and uses temperature-gradient method, every section of temperature And the heating-up time is as follows: preheating temperature elevation to 200 DEG C of cost 3h；200 DEG C are promoted to 700 DEG C of cost 3h；700 DEG C are promoted to 940 DEG C of cost 3h；940 DEG C of heat preservation 1.5h.
9. a kind of production method of the ceramic element of composite diatomite active carbon according to claim 8, which is characterized in that Filter core green compact firing in the step (5) takes out filter core crude green body after 940 DEG C of heat preservation 1.5h after cooled to room temperature.
10. a kind of production method of the ceramic element of composite diatomite active carbon according to claim 8, feature exist In the inner wall of mold is coated with release agent in the step (4), and the release agent is composed of the following components, each component and each The mass fraction of component is diesel oil: peanut oil=1:4.
CN201710425490.3A 2017-06-07 2017-06-07 A kind of ceramic element and its production method of composite diatomite active carbon Pending CN108997024A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110835179A (en) * 2019-11-22 2020-02-25 武汉溢爱环保实业有限公司 Composite filter element faucet water purifier
CN114345012A (en) * 2022-01-13 2022-04-15 福州市益通陶瓷科技有限公司 Filtering material for aquarium and preparation method thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004050214A1 (en) * 2002-12-05 2004-06-17 Clean Air Technology Corp. Method for producing multi-layered ceramic filter and ceramic filter using the same
CN101274176A (en) * 2007-12-19 2008-10-01 华南理工大学 Method for preparing tourmaline functional ceramic filter element
CN101301550A (en) * 2008-01-29 2008-11-12 杜建耀 Carbon crystal compound micropore ceramic filter element and preparation thereof
CN102350136A (en) * 2011-09-07 2012-02-15 蚌埠市华顺电动机械厂 Ceramic filter element and preparing method thereof
CN105920922A (en) * 2016-06-30 2016-09-07 郑伟阳 Ceramic filter element with filter and purifying effects and preparation method thereof
CN106552459A (en) * 2016-11-26 2017-04-05 宁波清水坊环保科技有限公司 A kind of composite filter element of containing diatomite and starch and preparation method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004050214A1 (en) * 2002-12-05 2004-06-17 Clean Air Technology Corp. Method for producing multi-layered ceramic filter and ceramic filter using the same
CN101274176A (en) * 2007-12-19 2008-10-01 华南理工大学 Method for preparing tourmaline functional ceramic filter element
CN101301550A (en) * 2008-01-29 2008-11-12 杜建耀 Carbon crystal compound micropore ceramic filter element and preparation thereof
CN102350136A (en) * 2011-09-07 2012-02-15 蚌埠市华顺电动机械厂 Ceramic filter element and preparing method thereof
CN105920922A (en) * 2016-06-30 2016-09-07 郑伟阳 Ceramic filter element with filter and purifying effects and preparation method thereof
CN106552459A (en) * 2016-11-26 2017-04-05 宁波清水坊环保科技有限公司 A kind of composite filter element of containing diatomite and starch and preparation method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
天津化工研究设计院: "《无机精细化学品手册》", 31 January 2001, 化学工业出版社 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110835179A (en) * 2019-11-22 2020-02-25 武汉溢爱环保实业有限公司 Composite filter element faucet water purifier
CN110835179B (en) * 2019-11-22 2022-03-08 武汉溢爱环保实业有限公司 Composite filter element faucet water purifier
CN114345012A (en) * 2022-01-13 2022-04-15 福州市益通陶瓷科技有限公司 Filtering material for aquarium and preparation method thereof

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