CN105884340A - Ceramic powder and preparation method thereof - Google Patents
Ceramic powder and preparation method thereof Download PDFInfo
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- CN105884340A CN105884340A CN201610208236.3A CN201610208236A CN105884340A CN 105884340 A CN105884340 A CN 105884340A CN 201610208236 A CN201610208236 A CN 201610208236A CN 105884340 A CN105884340 A CN 105884340A
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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
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/14—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silica
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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
- C04B2235/3427—Silicates other than clay, e.g. water glass
- C04B2235/3463—Alumino-silicates other than clay, e.g. mullite
- C04B2235/3472—Alkali metal alumino-silicates other than clay, e.g. spodumene, alkali feldspars such as albite or orthoclase, micas such as muscovite, zeolites such as natrolite
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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
- C04B2235/349—Clays, e.g. bentonites, smectites such as montmorillonite, vermiculites or kaolines, e.g. illite, talc or sepiolite
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- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention relates to ceramic powder and a preparation method thereof. The preparation method comprises the steps that a ceramic raw material containing ceramic sand and clay is prepared into slurry, powder spraying is carried out, and first powder is obtained, wherein the clay content in the ceramic raw material is 0-10 wt%; an additive is evenly mixed with water to form mixed water, wherein the additive can be evenly dispersed in water and can improve the green body strength; the mixed water is atomized and evenly mixed with the first powder, and therefore the ceramic powder is obtained.
Description
Technical field
The invention belongs to ceramic building material field, be specifically related to a kind of ceramic powder and preparation method thereof.
Background technology
Ceramic clay is requisite part in ceramic formula, and its Main Function is to provide intensity, viscosity for formula
And toughness, it is ensured that fill a prescription the most rotten in shaping, process, be non-renewable resources, through the use of decades, good pottery
Porcelain clay is fewer and feweri, and the performance such as composition, whiteness, intensity is worse and worse, and the exploitation to high-grade ceramic limits increasing,
Cost is more and more higher.The most a lot of additives can improve blank strength well, but big, very especially to the flow rate effect of slurry
Difficulty changes minimizing clay consumption significantly, directly uses reinforcing agent to manufacture powder and produces.
Summary of the invention
For prior art exist disadvantages described above, it is an object of the invention to provide a kind of method preparing ceramic powder and
The ceramic powder prepared by the method, and the method preparing ceramic body, to reduce ceramic formula clay usage amount, the most really
Protecting ceramic powder and blank strength is constant or strengthened, the processing on operation does not produce impact.
Here, on the one hand, the present invention provides the preparation method of a kind of ceramic powder, including:
Dust after ceramic raw material containing ceramic sand material Yu clay is made slurry prepared first powder, wherein in described ceramic raw material,
The content of clay is 0～10wt%；
Uniform additive package in water and form mixing water, wherein said additive is to can be uniformly dispersed in water and can improve base substrate
The additive of intensity；
By the atomization of described mixing water and uniformly mix with described first powder, i.e. prepare ceramic powder.
In the present invention, in ceramic formula, the consumption of clay is reduced to below 10wt%, it is possible to resolve the shortage of non-renewable resources
Problem, improves the sustainable development of ceramic industry；After clay consumption reduces, flow rate of slurry significantly improves, and can properly increase slurry
Moisture, can reduce the while of saving water source and make powder energy consumption.And be not in system for strengthening the polyvinyl alcohol of ceramic powder intensity
Before standby slurry but adding after powder process, therefore, the polyvinyl alcohol of this interpolation does not affect flow velocity and the powder process of slurry, i.e. to operation
Processing do not produce impact, may insure that the ceramic powder that ceramic powder intensity is higher with existing clay content simultaneously compared with holding
Constant or strengthened.
It is preferred that the content of described clay is 0～8wt%.From the point of view of saving clay resource, the content of clay is more
Few the best.Clay is the fewest, and follow-up middle additive usage amount is the most, it is ensured that wet base intensity and dry base intensity can guarantee that Production requirement
?.
It is preferred that described ceramic sand material includes low temperature potassium sodium sand, middle temperature sand and high temperature sand, the wherein content of low temperature potassium sodium sand
Being 25～40wt%, the content of middle temperature sand is 20～35wt%, and the content of high temperature sand is 20～40wt%.
It is preferred that in described ceramic raw material possibly together with 0.1～0.5wt% thickener.According to the present invention, add thickening on a small quantity
Additive, is possible to prevent slurry sediment, and does not affect the flow velocity of slurry.
It is preferred that moisture is 29～32.5% in described slurry, flow velocity is 35～60 seconds, proportion be 1.72～
1.78.In the present invention, slurry moisture and flow velocity are higher, can reduce and make powder energy consumption while of can saving water source.
It is preferred that the moisture of described first powder is 2～4wt%.By the moisture of the first powder is controlled 2～4
Wt%, can be conducive to the control of the powder moisture of mixing water atomization below.It is preferred that described additive is polyvinyl alcohol, carboxylic first
At least one in base sodium cellulosate and polyvinyl chloride.It is preferred that in mixing water, water is 100 with the mass ratio of additive:
(3～25), preferably 100:(5～15).
It is preferred that after the atomization of described mixing water uniformly mixing with described first powder, powder moisture is 6.5～9.0
Wt%.By the moisture of powder being controlled 6.5～9.0wt%, the most compressing, reduce layering or rotten brick.And
The present invention, by controlling powder moisture, can control the amount of the polyvinyl alcohol of mixing in powder.It is preferred that the interpolation of additive
Amount is the 0.3～1.5% of the first powder quality.
It is preferred that after the atomization of described mixing water uniformly mixing with described first powder, also carry out old, it is preferable that
The old time is 16～48h.
On the other hand, the present invention also provides for the preparation method of a kind of ceramic body, including:
Ceramic powder is prepared according to any one preparation method above-mentioned；And
By prepared ceramic powder shaping, i.e. prepare ceramic body.
According to the present invention it is possible to reduce clay usage amount, solve the shortage problem of non-renewable resources, improve ceramic industry
Sustainable development, guarantee the ceramic body that the intensity of ceramic body is higher with existing clay content simultaneously compared with keep constant or
Strengthen.
Another further aspect, the present invention provides the ceramic powder that a kind of preparation method according to any one ceramic powder above-mentioned prepares
Material.In the ceramic powder of the present invention, clay content is few, and intensity is high.
Detailed description of the invention
The present invention is further illustrated, it should be appreciated that following embodiment is merely to illustrate this below in conjunction with following embodiment
Bright, and the unrestricted present invention.In following formula, if no special instructions, the content of each composition refers both to percentage by weight.
The invention provides the preparation method of a kind of ceramic powder, be mainly adjusted by ceramic powder formula, reduce in formula
Clay content, and the powder after powder process remixes the additive for improving intensity, prepares ceramic powder.The present invention
In, " clay " refers to ceramic clay material, e.g. washes ball clay, mixed soil, kaolin, bentonite (main group
Become montmorillonite), atlapulgite (it is indefinite to form) etc..
Hereinafter, as example, the preparation method of the ceramic powder of the present invention is described.
The formula of ceramic powder
In the formula of ceramic powder, containing clay and other conventional ceramic raw material composition, such as ceramic sand material etc..In the present invention,
Adjustment ceramic powder is filled a prescription, and reduces clay content.The content of clay can be 0～10wt%, preferably 0～8wt%.From joint
From the point of view of saving clay resource, the content of clay is the fewest more good, it might even be possible to (i.e. clay content is 0 to be entirely free of clay
Wt%).Clay is the fewest, follow-up in the most for improving the additive usage amount of intensity, it is ensured that the wet base prepared by ceramic powder
Intensity and dry base intensity can guarantee that Production requirement.As the conventional ceramic raw material composition of other in addition to clay, there is no spy
Do not limit, such as, can include low temperature potassium sodium sand raw material, middle temperature raw material, high temperature raw material etc..Low temperature potassium sodium sand raw material
Including but not limited to peak, south hypothermia grait, selected sodium stone grain, washing sodium sand, its proportioning can be 25～40%.Middle temperature raw material include
But being not limited to middle temperature white sand, ultrawhite middle temperature sand, its proportioning can be 20～35%.High temperature raw material include but not limited to high alumina sand,
Calcined kaolin, Xing Yuansha, its proportioning can be 20～40%.It addition, because clay usage amount is on the low side, for preventing precipitation, can lack
Amount adds thickening additive, but can not affect flow velocity.Preferably, the content of thickening additive is 0.1～0.5%.As thickening
Additive, includes but not limited to have the polyvinyl alcohol of some strength, methylcellulose, organic reinforcing agent.An example
In, the formula of ceramic powder is as follows:
Clay raw material ratio: 0～10%；
Low temperature potassium sodium sand raw material ratio: 25～40%；
Middle temperature raw material ratio: 20～35%；
High temperature raw material ratio: 20～40%；
Thickening additive: 0.1～0.5%.
According to formula by ceramic raw material mixing wet ball grinding, prepare slurry.Ball-milling Time can be 10h～15h.After ball milling
Sieve (such as crossing 80 mesh sieves), except iron (such as electromagnetism removes iron) etc..In the present invention, after clay consumption reduces, stream of slurry
Speed significantly improves, and can suitably reduce slurry moisture, can reduce and make powder energy consumption while of saving water source.Such as, moisture in slurry
Can be 29～32.5%.Flow rate of slurry can be 35～60 seconds.Slurry proportion can be 1.72～1.78.
By the ceramic size powder process of gained.The present invention can use spray tower powder by spraying.By ceramic size spray gun in tower
Spraying mist formation drop-wise, the hot blast produced with hot-blast stove contacts, and owing to droplet is thin, has huge disengagement area, can be quick
Complete to be dried, obtain the graininess powder meeted the requirements.The preparation method of the present invention has powder moisture, particle diameter easily regulates；Powder
Material is hollow spherical particles, good fluidity, Simplified flowsheet, the advantage that improve productivity ratio.The moisture requirement of the powder prepared can
Being 2～4.5%.
Then, being fully atomized on powder by the mixing water prepared, atomization limit, limit is the most mixed, it is ensured that uniform moisture.Institute
Stating mixing water is to be made by additive package uniform in water.Adding special additive inside mixing water, its main purpose is
In order to improve the intensity of base substrate.As long as additive disclosure satisfy that to can be uniformly dispersed in water (such as can pass through stirring, the side of ball milling
Formula makes additive be dispersed in water), can improve blank strength additive can, such as include but not limited to polyethylene
Alcohol, sodium carboxymethylcellulose, polyvinyl chloride etc..Additive can be single additive, it is also possible to be additive package.Add
Agent is uniform with water mixing and ball milling, and the beneficially atomization of powder is uniform, can effectively improve blank strength.Water and interpolation in mixing water
The ratio of agent can be 100:(3～25).Such ratio can be conducive to the atomization of mixing water and equal with above-mentioned powder
Even mixing；This scope can meet blank strength, and additive can be conducive to again to be dissolved in water.If the ratio mistake of additive in mixing water
Low, then blank strength can be caused inadequate, or consumption is excessive, powder Moisture high UCL, be unfavorable for shaping；If the ratio of additive
Too high, then powder viscosity can be caused excessive, be unfavorable for mixing, and moisture is too small, be unfavorable for shaping.In mixing water water with
The ratio of additive is preferably 100:(5～15).Concrete ratio is relevant with formula intensity, can meet and produce.After spraying
Powder moisture can control 6.5～9.0% (depending on concrete moisture is according to manufacturing technique requirent).By regulating the use of mixing water
Amount, water and the ratio of additive, can control the amount of the additive being sprayed on powder.In one example, the interpolation of additive
Amount is the 0.3～1.5% of above-mentioned powder quality.It addition, the addition of additive also can regulate according to the consumption of above-mentioned clay,
Clay is the fewest, and additive usage amount is the most, as long as can ensure that wet base intensity and dry base intensity can guarantee that Production requirement.
Will spraying after powder sieve, old, prepare ceramic powder.Wherein sieving can be according to required ceramic powder
Material granularity selects, and preferably crosses 20 mesh sieves.The old time can be 16～32 hours.
Present invention also offers the preparation method of ceramic body.By above-mentioned prepared ceramic powder shaping, prepare ceramic blank
Body.Molding mode is not particularly limited, and includes but not limited to dry-pressing formed, half dry-pressing formed etc..
The present invention prepare ceramic powder and ceramic body method reduces ceramic formula clay usage amount, ensure that pottery simultaneously
Ceramic powder and blank strength are constant or strengthened, and the processing on operation does not produce impact.
In ceramic powder that the present invention prepares and ceramic body, clay content low (0～10wt%), contains simultaneously and is used for increasing
Add the additive of intensity and may insure that the intensity of ceramic powder and ceramic body.
The invention has the beneficial effects as follows: compared with the ceramic formula of prior art, the ceramic powder clay consumption of the present invention
It is reduced to less than 10% from 22～30%, it is possible to resolve the shortage problem of non-renewable resources, improves the sustainable development of ceramic industry
Exhibition；After clay consumption reduces, flow rate of slurry significantly improves, and can suitably reduce slurry moisture, saves water source and can reduce simultaneously
Make powder energy consumption.Meanwhile, the preparation method of the present invention has powder moisture, particle diameter easily regulates；Powder is hollow spherical particles, stream
Dynamic property is good, Simplified flowsheet, the advantage that improve productivity ratio.
Enumerate embodiment further below to describe the present invention in detail.It will similarly be understood that following example are served only for this
Bright it is further described, it is impossible to being interpreted as limiting the scope of the invention, those skilled in the art is according to the present invention's
Some nonessential improvement and adjustment that foregoing is made belong to protection scope of the present invention.The technique ginseng that following example is concrete
Number etc. is the most only an example in OK range, in the range of i.e. those skilled in the art can be done suitably by explanation herein
Select, and do not really want to be defined in the concrete numerical value of hereafter example.In following embodiment, albite in powder is purchased from little Qiao mining plants,
Feldspar in powder is purchased from Eastcom's pottery mining plants, and high temperature sand is purchased from Hua Sheng ceramic raw material business department, and middle temperature sand is limited purchased from building prosperous mining industry
Company, mixed soil is purchased from still moral hat Hong Cituchang, and polyvinyl alcohol is purchased from Yong Chuan ceramic raw material business department.
Embodiment 1
Table 1: each raw material title, proportioning and chemical composition thereof are as follows:
| Sequence number | Material name | Proportioning | IL | SiO2 | Al2O3 | Fe2O3 | TiO2 | CaO | MgO | K2O | Na2O | Add up to |
| 1 | Albite in powder | 18% | 4.94 | 67.21 | 17.1 | 0.2 | 0.2 | 0.3 | 0.14 | 1.5 | 8.01 | 99.6 |
| 2 | Feldspar in powder | 20% | 3.86 | 69.76 | 18.66 | 0.30 | 0.25 | 0.20 | 0.08 | 5.66 | 1.10 | 99.87 |
| 3 | High temperature sand | 30% | 5.88 | 67.99 | 21.35 | 0.99 | 0.20 | 0.36 | 0.37 | 2.47 | 0 | 99.96 |
| 4 | Middle temperature sand | 27% | 2.97 | 68.66 | 20.20 | 0.47 | 0.04 | 0.10 | 0.31 | 3.13 | 3.20 | 99.91 |
| 5 | Mixed soil | 5% | 9.46 | 62.28 | 24.62 | 1.37 | 0.35 | 0 | 0 | 0.98 | 0.35 | 99.98 |
| 6 | Polyvinyl alcohol | 0.3% |
First, according to formula by after above-mentioned raw material in addition to polyvinyl alcohol and moisture another name amount in 20 tons of ball mills ball milling 10～
15h, tails over and controls at 0.6-0.8% (250 mesh)；Rear mistake 80 mesh sieve, electromagnetism is except obtaining ceramic size, slurry moisture after iron
31%；Flow velocity 45 seconds；Proportion 1.75；
Ceramic size use conventional ceramic mist projection granulating tower dust, powder moisture 4.0% after dusting；
Preparation mixing water: polyvinyl alcohol and water are in ratio mixing and ball milling 3-6h of 100:10；
Then, being fully atomized by the mixing water water cutter machine prepared and be sprayed on equably on powder, atomization limit, limit is the most mixed, it is ensured that moisture
Uniformly, the consumption of mixing water and the ratio of powder are 4:100, and the powder moisture after its atomization can control 7.5～8.0%；
Will atomization after powder sieve, old, ceramic powder prepares.Wherein spend 20 24 hours mesh sieve old times of being sieved through；
Prepared ceramic powder is sent at press compressing, makes ceramic body.
Detecting through rupture strength instrument DPK-300/1000, the intensity of gained ceramic body is 1.22Mpa.
Reference example 1
Table 2: each raw material title, proportioning and chemical composition thereof, manufacturer are as follows:
| Sequence number | Material name | Proportioning | IL | SiO2 | Al2O3 | Fe2O3 | TiO2 | CaO | MgO | K2O | Na2O | Add up to |
| 1 | Albite in powder | 18% | 4.94 | 67.21 | 17.1 | 0.2 | 0.2 | 0.3 | 0.14 | 1.5 | 8.01 | 99.6 |
| 2 | Feldspar in powder | 15% | 3.86 | 69.76 | 18.66 | 0.30 | 0.25 | 0.20 | 0.08 | 5.66 | 1.10 | 99.87 |
| 3 | High temperature sand | 22% | 5.88 | 67.99 | 21.35 | 0.99 | 0.20 | 0.36 | 0.37 | 2.47 | 0 | 99.96 |
| 4 | Middle temperature sand | 23% | 2.97 | 68.66 | 20.20 | 0.47 | 0.04 | 0.10 | 0.31 | 3.13 | 3.20 | 99.91 |
| 5 | Mixed soil | 22% | 9.46 | 62.28 | 24.62 | 1.37 | 0.35 | 0 | 0 | 0.98 | 0.35 | 99.98 |
First, according to formula by after above-mentioned raw materials and moisture another name amount in 20 tons of ball mills ball milling 10～15h, tail over and control at 0.6-
0.8% (250 mesh)；Rear mistake 80 mesh sieve, electromagnetism is except obtaining ceramic size, slurry moisture 33.5% after iron；Flow velocity 65 seconds；
Proportion 1.72；
Ceramic size use conventional ceramic mist projection granulating tower dust, powder moisture 8.0% after dusting；；
Prepared ceramic powder is made ceramic body as described in Example 1.
Detecting through rupture strength instrument DPK-300/1000, the intensity of gained ceramic body is 1.08Mpa.
From the present embodiment 1, after clay consumption reduces, flow rate of slurry significantly improves, and can properly increase slurry moisture and contain
Amount, can reduce the while of saving water source and make powder energy consumption.From embodiment 1 and reference example 1, the present invention reduces clay usage amount system
Standby ceramic body compared with the ceramic body of existing normal clay usage amount, intensity enhancing.
Embodiment 2
Table 3: each raw material title, proportioning and chemical composition thereof are as follows:
| Sequence number | Material name | Proportioning | IL | SiO2 | Al2O3 | Fe2O3 | TiO2 | CaO | MgO | K2O | Na2O | Add up to |
| 1 | Albite in powder | 18% | 4.94 | 67.21 | 17.1 | 0.2 | 0.2 | 0.3 | 0.14 | 1.5 | 8.01 | 99.6 |
| 2 | Feldspar in powder | 20% | 3.86 | 69.76 | 18.66 | 0.30 | 0.25 | 0.20 | 0.08 | 5.66 | 1.10 | 99.87 |
| 3 | High temperature sand | 30% | 5.88 | 67.99 | 21.35 | 0.99 | 0.20 | 0.36 | 0.37 | 2.47 | 0 | 99.96 |
| 4 | Middle temperature sand | 24% | 2.97 | 68.66 | 20.20 | 0.47 | 0.04 | 0.10 | 0.31 | 3.13 | 3.20 | 99.91 |
| 5 | Mixed soil | 8% | 9.46 | 62.28 | 24.62 | 1.37 | 0.35 | 0 | 0 | 0.98 | 0.35 | 99.98 |
| 6 | Polyvinyl alcohol | 0.4% |
First, according to formula by after above-mentioned raw material in addition to polyvinyl alcohol and moisture another name amount in 20 tons of ball mills ball milling 10～
15h, tails over and controls at 0.6-0.8% (250 mesh)；Rear mistake 80 mesh sieve, electromagnetism is except obtaining ceramic size, slurry moisture after iron
30.5%；Flow velocity 50 seconds；Proportion 1.76；
Ceramic size use conventional ceramic mist projection granulating tower dust, powder moisture 3.0% after dusting；
Preparation mixing water: polyvinyl alcohol and water are in ratio mixing and ball milling 3-6h of 100:15；
Then, being fully atomized by the mixing water water cutter machine prepared and be sprayed on equably on powder, atomization limit, limit is the most mixed, it is ensured that moisture
Uniformly, the consumption of mixing water and the ratio of powder are 5:100, and the powder moisture after its atomization can control 7.5～8.0%；
Will atomization after powder sieve, old, ceramic powder prepares.Wherein spend 20 24 hours mesh sieve old times of being sieved through；
Prepared ceramic powder is sent at press compressing, makes ceramic body.Detect through rupture strength instrument DPK-300/1000,
The intensity of gained ceramic body is 1.8Mpa.
Comparative example 1
Table 4: each raw material title, proportioning and chemical composition thereof are as follows:
| Sequence number | Material name | Proportioning | IL | SiO2 | Al2O3 | Fe2O3 | TiO2 | CaO | MgO | K2O | Na2O | Add up to |
| 1 | Albite in powder | 18% | 4.94 | 67.21 | 17.1 | 0.2 | 0.2 | 0.3 | 0.14 | 1.5 | 8.01 | 99.6 |
| 2 | Feldspar in powder | 20% | 3.86 | 69.76 | 18.66 | 0.30 | 0.25 | 0.20 | 0.08 | 5.66 | 1.10 | 99.87 |
| 3 | High temperature sand | 30% | 5.88 | 67.99 | 21.35 | 0.99 | 0.20 | 0.36 | 0.37 | 2.47 | 0 | 99.96 |
| 4 | Middle temperature sand | 24% | 2.97 | 68.66 | 20.20 | 0.47 | 0.04 | 0.10 | 0.31 | 3.13 | 3.20 | 99.91 |
| 5 | Mixed soil | 8% | 9.46 | 62.28 | 24.62 | 1.37 | 0.35 | 0 | 0 | 0.98 | 0.35 | 99.98 |
| 6 | Polyvinyl alcohol | 1.0% |
According to formula by after above-mentioned raw materials and moisture another name amount in 20 tons of ball mills ball milling 10～15h, detection without flow velocity,
Cannot powder process.
Claims (13)
1. the preparation method of a ceramic powder, it is characterised in that including:
Dust after ceramic raw material containing ceramic sand material Yu clay is made slurry prepared first powder, and wherein in described ceramic raw material, the content of clay is 0～10 wt%；
Uniform additive package in water and form mixing water, wherein said additive is the additive caning be uniformly dispersed in water and improving blank strength；
By the atomization of described mixing water and uniformly mix with described first powder, i.e. prepare ceramic powder.
2., according to the preparation method described in claim 1, it is characterised in that in described ceramic raw material, the content of described clay is 0～8 wt%.
Preparation method the most according to claim 1 and 2, it is characterized in that, described ceramic sand material includes low temperature potassium sodium sand, middle temperature sand and high temperature sand, and wherein the content of low temperature potassium sodium sand is 25～40wt %, the content of middle temperature sand is 20～35wt %, and the content of high temperature sand is 20～40wt %.
Preparation method the most according to any one of claim 1 to 3, it is characterised in that possibly together with the thickener of 0.1～0.5 wt% in described ceramic raw material.
Preparation method the most according to any one of claim 1 to 4, it is characterised in that in described slurry, moisture is 29～32.5 %, flow velocity is 35～60 seconds, and proportion is 1.72～1.78.
Preparation method the most according to any one of claim 1 to 5, it is characterised in that the moisture of described first powder is 2～4.5 wt%.
Preparation method the most according to any one of claim 1 to 6, it is characterised in that described additive is at least one in polyvinyl alcohol, sodium carboxymethylcellulose and polyvinyl chloride.
Preparation method the most according to any one of claim 1 to 7, it is characterised in that in mixing water, water is 100:(3～25 with the mass ratio of additive), preferably 100:(5～15).
Preparation method the most according to any one of claim 1 to 8, it is characterised in that after the atomization of described mixing water uniformly mixing with described first powder, powder moisture is at 6.5～9.0 wt%.
Preparation method the most according to any one of claim 1 to 9, it is characterised in that the addition of additive is the 0.3～1.5% of the first powder quality.
11. preparation methods according to any one of claim 1 to 10, it is characterised in that after the atomization of described mixing water uniformly mixing with described first powder, also carry out old, it is preferable that the old time is 16～48 hours, more preferably 16～32 hours.
The preparation method of 12. 1 kinds of ceramic bodies, it is characterised in that including:
Ceramic powder is prepared according to the preparation method according to any one of claim 1 to 11；And
By prepared ceramic powder shaping, i.e. prepare ceramic body.
13. 1 kinds of ceramic powders prepared according to the preparation method according to any one of claim 1 to 11.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107337455A (en) * | 2016-11-29 | 2017-11-10 | 佛山市东鹏陶瓷有限公司 | A kind of powder dry-pressing formed for Ceramic Tiles and preparation method thereof |
| CN111925195A (en) * | 2020-07-21 | 2020-11-13 | 东莞市唯美陶瓷工业园有限公司 | Ceramic tile with high modulus of rupture and preparation method thereof |
| CN117886619A (en) * | 2024-03-15 | 2024-04-16 | 蒙娜丽莎集团股份有限公司 | High-strength dry-process powder-making mud-free ceramic blank and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103566818A (en) * | 2013-10-17 | 2014-02-12 | 陕西科技大学 | Architectural ceramic blank dry-method prilling device and method |
| CN105294086A (en) * | 2015-10-13 | 2016-02-03 | 陕西科技大学 | Ceramic tile blank and preparation method |
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2016
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103566818A (en) * | 2013-10-17 | 2014-02-12 | 陕西科技大学 | Architectural ceramic blank dry-method prilling device and method |
| CN105294086A (en) * | 2015-10-13 | 2016-02-03 | 陕西科技大学 | Ceramic tile blank and preparation method |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107337455A (en) * | 2016-11-29 | 2017-11-10 | 佛山市东鹏陶瓷有限公司 | A kind of powder dry-pressing formed for Ceramic Tiles and preparation method thereof |
| CN107337455B (en) * | 2016-11-29 | 2020-03-17 | 佛山市东鹏陶瓷有限公司 | Powder for dry pressing and forming of ceramic tile and preparation method thereof |
| CN111925195A (en) * | 2020-07-21 | 2020-11-13 | 东莞市唯美陶瓷工业园有限公司 | Ceramic tile with high modulus of rupture and preparation method thereof |
| CN117886619A (en) * | 2024-03-15 | 2024-04-16 | 蒙娜丽莎集团股份有限公司 | High-strength dry-process powder-making mud-free ceramic blank and preparation method thereof |
| CN117886619B (en) * | 2024-03-15 | 2024-06-11 | 蒙娜丽莎集团股份有限公司 | High-strength dry-process powder-making mud-free ceramic blank and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN105884340B (en) | 2018-11-02 |
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Effective date of registration: 20190430 Address after: 511533 Yuantan Town Ceramic Industry City, Qingcheng District, Qingyuan City, Guangdong Province Patentee after: Guangdong Qingyuan Monalisa Ceramics Co. Ltd Address before: 528211 Xiqiao Textile City Industrial Park, Nanhai District, Foshan City, Guangdong Province Patentee before: MONALISA GROUP CO., LTD. |