CN107158805A - A kind of multifunctional compound ceramics filter core and preparation method thereof - Google Patents
A kind of multifunctional compound ceramics filter core and preparation method thereof Download PDFInfo
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- CN107158805A CN107158805A CN201710524116.9A CN201710524116A CN107158805A CN 107158805 A CN107158805 A CN 107158805A CN 201710524116 A CN201710524116 A CN 201710524116A CN 107158805 A CN107158805 A CN 107158805A
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- 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
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/04—Clay; Kaolin
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/04—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by dissolving-out added substances
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- 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
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- 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
- C04B2235/3206—Magnesium oxides or oxide-forming salts thereof
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- 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
- C04B2235/3418—Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/42—Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
- C04B2235/422—Carbon
Abstract
The invention discloses a kind of multifunctional compound ceramics filter core, the raw material containing following parts by weight：10~30 parts of activated carbon, 45~60 parts of kaolin, 0~30 part of diatom ooze, 10~25 parts of bauxite, 5~10 parts of magnesia, 5~10 parts of calcium-base bentonite, 15~25 parts of binding agent, 0.4~1 part of liquefacient, 20~40 parts of organic pore-forming agents, 0.15~0.2 part of 15~20 part, nanometer exchanger of inorganic pore creating material.The present invention is prepared for the multifunctional compound ceramics filter core of load type active carbon, pore creating material and nanometer exchanger using slip-casting shaping process, technique is easy, easily operated, cost is low, works well, be easy to industrialized production, the ceramic element prepared has a variety of functions, the chlorine residue in water can not only effectively be adsorbed, microorganism that can also be in effectively catching water, while the heavy metal in water removal can also be removed effectively.Ceramic element purifying water effect of the present invention is good, and effluent quality meets《Standards for drinking water quality》(GB5749 2006), has gathered ordinary silicon diatomaceous earth ceramics, the advantage of three kinds of filter cores of ultrafiltration and activated carbon.
Description
Technical field
The invention belongs to water purification field, and in particular to a kind of multifunctional compound ceramics filter core and preparation method thereof.
Background technology
With the development of society, the reinforcement of people's environmental consciousness, people to the water quality requirement of domestic water also increasingly
It is high.The problem of many places of China face water quality water shortage, current waterworks is followed in addition traditional water supply process and water supply
Pipe network built-in problem, causes the water quality of running water to improve extremely difficult.Research and develop it is a economical and practical, simple to operate and
Safe and reliable water purifier can solve the above problems well..
Ceramic element is the core component of water purifier, be by porous filter elements of the ceramic powder through high temperature sintering,
It removes the impurity in water and bacterium, ordinary tap water is become purified water by physical methods such as filtering, absorption, and will not
Secondary pollution is produced, is well suited for household drinking water purification demand.With macromolecule reverse osmosis membrane and hollow fiber filtering membrane not
Together, ceramic element goes the removal of impurity using in-depth filtration principle, and the channel diameter of water is distributed between 0.1~10 μm, small hole
Footpath has absolute prevention ability for bacterium, and the introducing of antiseptic can then prevent growth of the bacterium in filter core, make to pass through
The quality safety of the water of filter core is reliable；And big aperture can ensure that filter core has small resistance and big flux, to the reality of filter core
It is significant with property.
Produce ceramic element primary raw material include alumina base and silica base ceramic material, wherein diatomite because
Its distinctive biological nano size microstructure and the high-strength absorption property that produces turn into main flow ceramic element preferred material it
One.Diatomite is made up of diatom remains, and main component is silica (80~95%), and remaining composition is mainly aluminum oxide.Silicon
Algae has the nanoporous structure of substantial amounts of natural ordered arrangement, and aperture size is between 80~200nm, so that diatomite
With excellent filtering and adsorption capacity.The Doulton companies of Britain are the maximum and most well-known ceramic element lifes in the current whole world
Producer is produced, it forms porous filter elements using diatomite as primary raw material through high temperature sintering.In order to improve filter effect, it is desirable to
Diatomaceous content is as high as possible.But because diatomite plasticity is low, too high levels will seriously reduce its forming ability, therefore
Need to add clay in forming process to improve plasticity and forming ability, but this is to be realized using reducing filter effect as cost
's.This water purifier both may be mounted on home-use ordinary faucet, be used for urban family, it would however also be possible to employ gravity
Type purifier produces pure water, is used in the place without running water.Incrustation scale, the large intestine bar in water can be filtered out through filtering
The malignant bacterias such as bacterium, cysticercus.Chlorine, remains of pesticide, the harmful organic substance gone by the charcoal part in filter core in water removal
Deng reaching drinking water standard, it is not necessary to just can directly be drunk by heating.But be due to charcoal adsorption rate it is limited, therefore
When being applied in Drinking fountain, adsorption effect is not very good.In order to solve this problem, Doulton companies subordinate
Hinton International companies develop BlackBlack ceramic filter core.It is in original ceramic filtering
A certain amount of charcoal is added in the forming process of core, it is dispersed in ceramic element, contact area is significantly improved, from
And avoid water from being not passed through charcoal and cause charcoal " short circuit ", it is ineffective.Compared with built-in charcoal, this filter core adsorption rate is significantly improved,
And saturated extent of adsorption is also significantly improved.This is primarily due in composite filter element, and charcoal is evenly distributed on diatomite ceramics
Between grain, using diatomaceous fine structure, the contact area of charcoal and water is dramatically increased, adsorption rate is improved.Due to charcoal
With diatomaceous collective effect, the catalytic decomposition of organic matter is promoted, causes significantly improving for total adsorbance.This ceramic filtering
The clearance of core bacterium reaches more than 99.9%, and harmful organic substance is removed also generally all more than 95%, and heavy metal ion
Remove more than 85%.If in addition, introducing a small amount of silver ion through overload silver processing by filter core, can suppressing to make for a long time
With the growth of bacterium in rear filter core.But, BlackBlack ceramic filter core is in preparation process, and its sintering temperature is
1020~1200 DEG C, higher than 1000 DEG C, and existing research is it has been shown that when sintering temperature is higher than 1000 DEG C, in diatomite
Natural nano micropore can be fused because of partially sintering, reduce nanometer micropore quantity, add the size of micropore, cause
The water flux reduction of diatomaceous filter quality and filter core.
In order to prevent above-mentioned phenomenon from occurring, current widespread practice is to reduce the sintering temperature of green compact, such as number of patent application
Contain for 200910112074.3 (preparation methods of the composite ceramic filter core containing diatomite and charcoal) there is provided a kind of low-temperature sintering
There is the preparation method of the composite ceramic filter core of diatomite and charcoal, solve the nanometer that diatomite is produced in high-temperature sintering process
Micropore fuses problem.Used yet with it relatively low sintering temperature (<950 DEG C), diatomite and the intergranular adhesion of charcoal
It is weaker, cause the mechanical strength of ceramic element produced relatively low, slight vibrations then cause the broken of ceramic element during use
Split, influence its shedding quality and service life.
Application number 201210437472.4 (a kind of composite ceramic filter core and preparation method thereof) introduces multi-walled carbon nanotube and increased
It is strong mutually to sinter high intensity diatomite base composite ceramic with chemical reaction sin-tering mechanism (metallic aluminium powder nitridation) to prepare new type low temperature
Filter core, to solve existing diatomite and the low caused ceramic element mechanical strength of charcoal Particles dispersed ceramic material sintering temperature
Low the problem of, meanwhile, improve the removal of heavy metal ions rate of such ceramic element, it is ensured that its shedding quality and service life.
What it was used be also low temperature sintering technology (<950 DEG C), but hydrogen is needed in its complex manufacturing, and production process, have
Dangerous property, requires high to production equipment.
Therefore, existing diatomite and charcoal particle how to be solved in high-temperature sintering process due to micropore fusion influence filtering
The problem of quality, while improving idiosome intensity turns into the difficult point of practical application.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of multifunctional compound ceramics filter core and preparation method thereof, gram
Take prior art and contain the composite ceramic filter core of diatomite and activated carbon because the natural micropore in diatomite is in high temperature sintering
Fuse and then influence the defect of filter quality.The present invention is by the way that organic pore-forming agents and inorganic pore creating material are used cooperatively, in high temperature
Aperture reconstruction can be played a part of during sintering, effective control micropore is formed, and improves the filtering accuracy in aperture, simultaneously because
Raw material forms mullite in high temperature sintering, improves the intensity of idiosome, and then improves sintering finished qualification rate.This hair
It is bright that there is good removal effect to chlorine residue, microorganism and heavy metal, gather ordinary silicon diatomaceous earth ceramics, ultrafiltration and activated carbon
The advantage of three kinds of filter cores.
The present invention solve the technological means that is used of above-mentioned technical problem for：
A kind of multifunctional compound ceramics filter core, the raw material of the ceramic element includes according to parts by weight：Activated carbon 10~30
Part, 45~60 parts of kaolin, 0~30 part of diatom ooze, 10~25 parts of bauxite, 5~10 parts of magnesia, calcium-base bentonite 5~10
Part, 15~25 parts of binding agent, 0.4~1 part of liquefacient, 20~40 parts of organic pore-forming agents, inorganic pore creating material 15~20 part, nanometer are handed over
Change 0.15~0.2 part of agent.
Preferably, the activated carbon is any one in Powdered Activated Carbon or granular activated carbon；Due to Powdered Activated Carbon
The contact area in water it is bigger than granular activated carbon, adsorption effect more preferably, can more effectively go water removal in chlorine residue, because
This, more preferably Powdered Activated Carbon.
Preferably, the binding agent is sodium lignin sulfonate or polyvinyl alcohol；More preferably sodium lignin sulfonate；
The binding agent is alternatively arranged as ceramic green body reinforcing agent in addition to cohesive ceramic body is played a part of, and strengthens the strong of ceramic idiosome
Degree.
Preferably, the liquefacient is calgon or waterglass；More preferably calgon；Liquefacient
Diluting effect is played for whole slurry liquid, increases the mobility of slurry liquid.
Preferably, the organic pore-forming agents are any one in cornstarch, farina, polyvinyl chloride, urea
Or it is several；More preferably cornstarch.
Preferably, the inorganic pore creating material is any one in zinc chloride, lithium chloride or two kinds；More preferably
Lithium chloride；The organic pore-forming agents (cornstarch as described) volatilization of being degraded in high-temperature calcination forms hole, described inorganic to make
Hole agent (lithium chloride as described) is soluble-salt, goes out to form hole with water logging after calcining, by organic pore-forming agents and described
Using cooperatively for inorganic pore creating material, preferably plays the function in the ceramic aperture of pore creating material adjustment.
Preferably, the nanometer exchanger is KDF powder；The KDF powder can effectively go water removal in heavy metal, such as lead,
Cadmium etc..
A kind of preparation method of multifunctional compound ceramics filter core, comprises the following steps：
(1) by weight by 10~30 parts of raw material activated carbon, 45~60 parts of kaolin, 0~30 part of diatom ooze, bauxite
10~25 parts, it is 5~10 parts of magnesia, 5~10 parts of calcium-base bentonite, 15~25 parts of binding agent, 0.4~1 part of liquefacient, organic
20~40 parts of pore creating material, 15~20 part, nanometer exchanger of inorganic pore creating material, 0.15~0.2 part of mixing that adds water, are stirred with mixer
Uniformly, the still aging 24h of slurry liquid, then injection forming, the demoulding, drying again；
(2) heat up, be sintered under inert gas shielding, cool down, produce multifunctional compound ceramics filter core.
In above-mentioned technical proposal, grouting process require the mud prepared there is raw material to be uniformly distributed, good fluidity, stably
Property good, thixotropy is small, water content is few, demolding performace good and not bubbles the features such as.
Preferably, in the step (1), the amount of water is the 25~30% of dry weight.
Preferably, in the step (2), the inert gas is any one in nitrogen, argon gas, helium.
Preferably, in the step (2), the sintering temperature is 1100~1350 DEG C；More preferably 1300 DEG C.
Preferably, in the step (2), temperature increasing schedule is during the sintering：Room temperature~400 DEG C, programming rate is 100
℃/h；400~1100 DEG C, programming rate is 200~300 DEG C/h；1100 DEG C~sintering temperature, programming rate is 100 DEG C/h,
Sintering temperature is warming up to, 1h is incubated.
Its general principles：
Due to ceramic idiosome, when carrying out high temperature sintering for 1300 DEG C, diatomaceous hole can be destroyed, and the present invention passes through
Organic pore-forming agents (such as cornstarch) and inorganic pore creating material (such as lithium chloride) are added, (corn forms sediment the organic pore-forming agents as described
Powder) volatilization of being degraded in high-temperature calcination forms hole, and the inorganic pore creating material (lithium chloride as described) is soluble-salt, calcining
Go out to form hole with water logging afterwards, aperture reconstruction is played by the organic pore-forming agents and using cooperatively for the inorganic pore creating material
Effect, preferably play the function in the ceramic aperture of pore creating material adjustment, the effective filtering accuracy for improving aperture；Meanwhile, this hair
Bright ceramic idiosome is when being sintered for 1300 DEG C, and bauxite and diatom ooze can form mullite, greatly improve ceramic element finished product
Intensity.In addition, passing through load type active carbon and nanometer exchanger so that ceramic element of the present invention, which has, removes chlorine residue, micro- life
A variety of functions such as thing and heavy metal.
Compared with prior art, technical scheme has the following advantages that：
(1) present invention is prepared for the multi-functional of load type active carbon, pore creating material and nanometer exchanger using slip-casting shaping process
Composite ceramic filter core, technique is easy, easily operated, cost is low, works well, be easy to industrialized production；
(2) ceramic element of the present invention has a variety of functions, can not only effectively be adsorbed by active carbon powder in water more than
Chlorine, moreover it is possible to pass through the Escherichia coli, golden yellow in the ceramic aperture effectively catching water of inorganic pore creating material combination organic pore-forming agents formation
The microorganisms such as color glucose coccus, while the heavy metal in water removal can also effectively be removed by nanometer exchanger；
(3) ceramic element purifying water effect of the present invention is good, and effluent quality meets《Standards for drinking water quality》(GB5749-
2006)
(4) multifunctional compound ceramics filter core set ordinary silicon diatomaceous earth ceramics of the invention of making pottery, three kinds of filters of ultrafiltration and activated carbon
The advantage of core.
Embodiment
Content for a better understanding of the present invention, is described further with reference to specific embodiment.It should be understood that this
A little embodiments are only used for that the present invention is further described, rather than limitation the scope of the present invention.In addition, it is to be understood that reading
After present disclosure, person skilled in art makes some nonessential changes or adjustment to the present invention, still falls within this
The protection domain of invention.
Embodiment 1
By weight by 20 parts of material powder activated carbon, 50 parts of kaolin, 20 parts of diatom ooze, 20 parts of bauxite, magnesia
5 parts, 5 parts of calcium-base bentonite, 20 parts of sodium lignin sulfonate, 0.4 part of calgon, 25 parts of cornstarch, 15 parts of lithium chloride,
0.2 part of KDF powder adds water mixing the 25~30% of dry weight (amount of water be), is stirred with mixer, slurry liquid stands old
Change 24h, then injection forming, the demoulding, drying again.Heat up, be sintered at 1300 DEG C under nitrogen protection.Temperature increasing schedule is：
Room temperature~400 DEG C, programming rate is 100 DEG C/h；400~1100 DEG C, programming rate is 200~300 DEG C/h；1100~1300
DEG C, programming rate is 100 DEG C/h, is warming up to 1300 DEG C, is incubated 1h.Cooling produces multifunctional compound ceramics filter core.
Embodiment 2
By weight by 10 parts of material powder activated carbon, 60 parts of kaolin, 30 parts of diatom ooze, 25 parts of bauxite, magnesia
7 parts, 5 parts of calcium-base bentonite, 15 parts of sodium lignin sulfonate, 0.6 part of waterglass, 40 parts of farina, 15 parts of lithium chloride, KDF
0.1 part of powder adds water mixing the 25~30% of dry weight (amount of water be), is stirred with mixer, slurry liquid is still aging
24h, then injection forming, the demoulding, drying again.Heat up, be sintered at 1200 DEG C under nitrogen protection.Temperature increasing schedule is：
Room temperature~400 DEG C, programming rate is 100 DEG C/h；400~1100 DEG C, programming rate is 200~300 DEG C/h；1100~1200
DEG C, programming rate is 100 DEG C/h, is warming up to 1200 DEG C, is incubated 1h.Cooling produces multifunctional compound ceramics filter core.
Embodiment 3
By weight by 30 parts of material powder activated carbon, 60 parts of kaolin, 30 parts of diatom ooze, 25 parts of bauxite, magnesia
10 parts, 10 parts of calcium-base bentonite, 25 parts of polyvinyl alcohol, 0.6 part of calgon, 30 parts of cornstarch, 15 parts of zinc chloride, KDF
0.15 part of powder adds water mixing the 25~30% of dry weight (amount of water be), is stirred with mixer, slurry liquid is still aging
24h, then injection forming, the demoulding, drying again.Heat up, be sintered at 1100 DEG C under nitrogen protection.Temperature increasing schedule is：
Room temperature~400 DEG C, programming rate is 100 DEG C/h；400~1100 DEG C, programming rate is 200~300 DEG C/h, is warming up to 1100
DEG C, it is incubated 1h.Cooling produces multifunctional compound ceramics filter core.
Effect assessment is tested：
1. reagent and instrument：
AR：Plumbi nitras, copper sulphate, nitric acid, sodium hypochlorite, chlorine residue indicator.
National standard solution：The standard liquid such as lead, copper, manganese, iron, nickel, zinc, aluminium, silver, arsenic, mercury, chromium, calcium 1000mg/L.
Instrument：TAS-990 atomic spectrophotometers, YL-1AZ chlorine residue tester, WZS-1000 transmissometers, Hash COD are surveyed
Try instrument, constant incubator, sterilization stove etc..
2. multifunctional compound ceramics filter core of the present invention is for the removal effect of chlorine residue：
It is 2 ± 0.2ppm with chlorine content in chemical reagent sodium hypochlorite mark-on water, the filtering specified total amount of mark-on water is
2000L, filters 500L water, 1000L water, 1500L water, 2000L water respectively, and four-stage is respectively asked for identical water and examined
Survey, experimental result is shown in Table 1.
Removal experimental test of the multifunctional compound ceramics filter core of the present invention of table 1 for chlorine residue in water
Conclusion：Remove the effect of chlorine residue and the amounts of activated carbon of addition is directly proportional, the bigger effect of amount of addition is better, but examines
Consider the intensity of shaping idiosome, need to add appropriate active carbon powder prevents idiosome from being deformed in sintering；Using the institute of embodiment 1~3
State chlorine residue clearance of the Powdered Activated Carbon multifunctional compound ceramics filter core of the present invention after filtering 2000L water for 88.75~
98.45%, and the chlorine residue clearance after in the market conventional ceramic filtering 2000L water is only 1%, therefore the present invention is multi-functional multiple
The effect that mould assembly ceramic element removes chlorine residue is substantially better than conventional ceramic filter core.
3. multifunctional compound ceramics filter core of the present invention is for the rejection effect of bacterium
The strain of test cultures：Staphylococcus aureus, pseudomonas aeruginosa, ETEC, experimental result are shown in Table
2。
The multifunctional compound ceramics filter core of the present invention of table 2 is tested for the rejection effect of bacterium
Conclusion：The effect for retaining bacterium is relevant with the pore creating material species in ceramic additive, the diatomite sheet of in the market
Body into pore property, it is impossible to the feature of its pore-forming is controlled, because the present invention is by organic pore-forming agents (such as cornstarch) and inorganic makes
Hole agent (such as lithium chloride) is used cooperatively, and can effectively control ceramic filter precision, while can ensure that the rejection and stream for bacterium
The control of speed.
4. multifunctional compound ceramics filter core of the present invention is for the removal effect of heavy metal
With plumbi nitras and copper sulphate preparation of reagents mark-on water sample, heavy metal is carried out with TAS-990 atomic spectrophotometers
Analysis, experimental result is shown in Table 3.
The multifunctional compound ceramics filter core of the present invention of table 3 is for heavy metals removal effect experiment in water
Conclusion：The sintering coconut husk carbon rod of in the market under equal conditions tests the effect for removing heavy metal lead 30%, goes
The effect of copper removal is 35%, and conventional ceramic does not almost have for the removal effect of heavy metal, by the present invention in that with KDF nanometers
The heavy metal that exchanger can be effectively gone in water removal, such as lead and copper.
5. multifunctional and composite type ceramic element filtering water detection of the present invention：
Raw water：Ningbo City's running water, intake pressure：0.25Mpa, by multifunctional compound ceramics filter element filtering of the present invention
Water sampling 1L is tested and analyzed afterwards, and experimental result is shown in Table 4.
The multifunctional compound ceramics filter element filtering water quality detection effect test of the present invention of table 4
Conclusion：Water quality by multifunctional and composite type ceramic element of the present invention meets《Drinking Water health mark
It is accurate》(GB5749-2006).
The limitation of described above not to invention, the present invention is also not limited to the example above.The common skill of the art
Art personnel are in the essential scope of invention, the variations, modifications, additions or substitutions made, and should also belong to the protection model of the present invention
Enclose.
Claims (10)
1. a kind of multifunctional compound ceramics filter core, it is characterised in that the raw material containing following parts by weight：10~30 parts of activated carbon,
45~60 parts of kaolin, 0~30 part of diatom ooze, 10~25 parts of bauxite, 5~10 parts of magnesia, 5~10 parts of calcium-base bentonite,
15~25 parts of binding agent, 0.4~1 part of liquefacient, 20~40 parts of organic pore-forming agents, inorganic pore creating material 15~20 part, nanometer are exchanged
0.15~0.2 part of agent.
2. a kind of multifunctional compound ceramics filter core as claimed in claim 1, it is characterised in that the activated carbon is powder activity
Charcoal or granular activated carbon.
3. a kind of multifunctional compound ceramics filter core as claimed in claim 1, it is characterised in that the binding agent is sulfomethylated lignin
Sour sodium or polyvinyl alcohol.
4. a kind of multifunctional compound ceramics filter core as claimed in claim 1, it is characterised in that preferably, the liquefacient is
Calgon or waterglass.
5. a kind of multifunctional compound ceramics filter core as claimed in claim 1, it is characterised in that preferably, organic pore-creating
Agent is any one or a few in cornstarch, farina, polyvinyl chloride, urea.
6. a kind of multifunctional compound ceramics filter core as claimed in claim 1, it is characterised in that the inorganic pore creating material is chlorination
One or both of zinc, lithium chloride.
7. a kind of multifunctional compound ceramics filter core as claimed in claim 1, it is characterised in that the nanometer exchanger is KDF
Powder.
8. a kind of preparation method of multifunctional compound ceramics filter core, it is characterised in that comprise the following steps：
(1) by weight by 10~30 parts of raw material activated carbon, 45~60 parts of kaolin, 0~30 part of diatom ooze, bauxite 10~25
Part, 5~10 parts of magnesia, 5~10 parts of calcium-base bentonite, 15~25 parts of binding agent, 0.4~1 part of liquefacient, organic pore-forming agents 20
~40 parts, 15~20 part, nanometer exchanger of inorganic pore creating material, 0.15~0.2 part of mixing that adds water, are stirred with mixer, mud
The still aging 24h of liquid, then injection forming, the demoulding, drying again；
(2) heat up, be sintered under inert gas shielding, cool down, produce multifunctional compound ceramics filter core.
9. a kind of preparation method of multifunctional compound ceramics filter core as claimed in claim 8, it is characterised in that the step
(2) in, the inert gas is any one in nitrogen, argon gas, helium.
10. a kind of preparation method of multifunctional compound ceramics filter core as claimed in claim 8, it is characterised in that the step
(2) in, the sintering temperature is 1100~1350 DEG C.
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| CN108236811A (en) * | 2018-02-01 | 2018-07-03 | 合肥宸翊商贸有限公司 | A kind of efficient sanitary sewage filter plate and preparation method thereof |
| CN108947508A (en) * | 2018-08-21 | 2018-12-07 | 东莞市倍益清环保科技有限公司 | A kind of ceramic element, preparation method and the usage |
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| CN113577916A (en) * | 2021-07-12 | 2021-11-02 | 浙江致远环境科技有限公司 | Preparation process of ceramic composite fiber catalytic filter tube |
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Application publication date: 20170915 |