CN105884340B - A kind of ceramic powder and preparation method thereof - Google Patents
A kind of ceramic powder and preparation method thereof Download PDFInfo
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- CN105884340B CN105884340B CN201610208236.3A CN201610208236A CN105884340B CN 105884340 B CN105884340 B CN 105884340B CN 201610208236 A CN201610208236 A CN 201610208236A CN 105884340 B CN105884340 B CN 105884340B
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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
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- 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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Abstract
The present invention relates to a kind of ceramic powder and preparation method thereof, the preparation method includes：Obtained first powder that dusts is made after slurry in ceramic raw material containing ceramic sand material and clay, wherein in the ceramic raw material, the content of clay is 0~10 wt%；In water uniform additive package and form mixing water, wherein the additive is the additive that can be uniformly dispersed in water and can improve blank strength；It is uniformly mixed by the mixing water atomization and with first powder, obtains ceramic powder.
Description
Technical field
The invention belongs to ceramic building material fields, and in particular to a kind of ceramic powder and preparation method thereof.
Background technology
Ceramic clay is essential component part in ceramic formula, and main function is to provide intensity for formula, is glued
Property and toughness, it is ensured that formula molding, in process it is not rotten, be non-renewable resources, by the use of decades, good pottery
Porcelain clay is fewer and fewer, and the performances such as ingredient, whiteness, intensity are worse and worse, increasing to the exploitation limitation of high-grade ceramic, at
This is higher and higher.Many additives can improve blank strength well at present, but especially big to the flow rate effect of slurry, it is difficult to
Significantly change and reduce clay dosage, is directly produced using reinforcing agent to manufacture powder.
Invention content
For disadvantages described above of the existing technology, the object of the present invention is to provide a kind of method preparing ceramic powder with
And the ceramic powder prepared by this method, and the method for preparing ceramic body, to reduce ceramic formula clay usage amount, simultaneously
Ensure that ceramic powder and blank strength are constant or enhanced, the processing of process is not had an impact.
Herein, on the one hand, the present invention provides a kind of preparation method of ceramic powder, including：
Obtained first powder that dusts is made after slurry in ceramic raw material containing ceramic sand material and clay, wherein in the pottery
In porcelain raw material, the content of clay is 0~10wt%；
In water uniform additive package and form mixing water, wherein the additive be can be uniformly dispersed in water and
The additive of blank strength can be improved；
It is uniformly mixed by the mixing water atomization and with first powder, obtains ceramic powder.
In the present invention, the dosage of clay is reduced to 10wt% hereinafter, lacking for non-renewable resources can be solved in ceramic formula
Weary problem improves the sustainable development of ceramic industry；After clay dosage is reduced, flow rate of slurry significantly improves, and can properly increase slurry
Expect moisture, saves water source while can reduce and make powder energy consumption.And the polyvinyl alcohol for enhancing ceramic powder intensity is not
Pair it adds before preparing slurry but after powder processed, therefore, the polyvinyl alcohol of the addition does not influence the flow velocity of slurry and powder processed, i.e.,
The processing of process does not have an impact, while may insure ceramic powder intensity and the higher ceramic powder phase of existing clay content
Than remaining unchanged or being enhanced.
Preferably, the content of the clay is 0~8wt%.From the point of view of saving clay resource, the content of clay is got over
It is few better.Clay is fewer, and follow-up middle additive usage amount is more, it is ensured that wet base intensity and dry base intensity can guarantee production requirement
?.
Preferably, the ceramic sand material includes low temperature potassium sodium sand, medium temperature sand and high temperature sand, the wherein content of low temperature potassium sodium sand
Content for 25~40wt%, medium temperature sand is 20~35wt%, and the content of high temperature sand is 20~40wt%.
Preferably, the also thickener containing 0.1~0.5wt% in the ceramic raw material.According to the present invention, a small amount of be added increases
Thick additive can prevent slurry sediment, and not influence the flow velocity of slurry.
Preferably, in the slurry moisture be 29~32.5%, flow velocity be 35~60 seconds, proportion be 1.72~
1.78.In the present invention, slurry moisture and flow velocity are higher, can save water source while can reduce and make powder energy consumption.
Preferably, the moisture of first powder is 2~4wt%.By by the control of the moisture of the first powder 2~
4wt% can be conducive to the control for mixing water atomized powders material moisture below.Preferably, the additive is polyvinyl alcohol, carboxylic first
At least one of base sodium cellulosate and polyvinyl chloride.Preferably, in mixing water, the mass ratio of water and additive is 100：(3
~25), preferably 100：(5~15).
Preferably, by the mixing water atomization and with first powder after evenly mixing, powder moisture 6.5~
9.0wt%.By in 6.5~9.0wt%, being conducive to compression moulding, reducing layering or rotten brick the moisture control of powder.And
And the present invention can control the amount of the polyvinyl alcohol mixed in powder by controlling powder moisture.Preferably, additive adds
Dosage is the 0.3~1.5% of the first powder quality.
Preferably, by the mixing water atomization and with first powder after evenly mixing, also carry out aging, it is preferable that
The aging time is 16~48h.
On the other hand, the present invention also provides a kind of preparation methods of ceramic body, including：
Ceramic powder is prepared according to any one of the above preparation method；And
Ceramic powder obtained is molded, ceramic body is obtained.
According to the present invention it is possible to reduce clay usage amount, the shortage of non-renewable resources is solved the problems, such as, improve ceramic industry
Sustainable development, while ensuring that the intensity of ceramic body remains unchanged compared with the higher ceramic body of existing clay content
Or enhanced.
In another aspect, the present invention provides ceramic powder made from a kind of preparation method according to any one of the above ceramic powder
Material.Clay content is few in the ceramic powder of the present invention, and intensity is high.
Specific implementation mode
It is further illustrated the present invention below in conjunction with following embodiments, it should be appreciated that following embodiments are merely to illustrate this
Invention, is not intended to limit the present invention.In following formula, unless otherwise instructed, the content of each ingredient refers both to weight percent.
The present invention provides a kind of preparation methods of ceramic powder, are mainly adjusted by ceramic powder formula, reduce formula
In clay content, and remix the additive for improving intensity in the powder after powder processed, ceramic powder be made.This hair
In bright, " clay " refers to ceramic clay material, e.g. washes ball clay, mixed soil, kaolin, bentonite (main composition
For montmorillonite), atlapulgite (composition indefinite) etc..
Hereinafter, as an example, illustrating the preparation method of the ceramic powder of the present invention.
The formula of ceramic powder
In the formula of ceramic powder, contain clay and other common ceramic raw material ingredients, such as ceramic sand material etc..This
In invention, ceramic powder formula is adjusted, reduces clay content.The content of clay can be 0~10wt%, preferably 0~8wt%.
From the point of view of saving clay resource, the fewer the content of clay the better, it might even be possible to be entirely free of clay (i.e. clay content
For 0wt%).Clay is fewer, more for improving the additive usage amount of intensity in follow-up, it is ensured that wet made from ceramic powder
Base intensity and dry base intensity can guarantee production requirement.As other common ceramic raw material ingredients in addition to clay, do not have
It is particularly limited to, such as may include low temperature potassium sodium sand raw material, medium temperature raw material, high temperature raw material etc..Low temperature potassium sodium sand is former
Material includes but not limited to southern peak hypothermia grait, selected sodium stone grain, washing sodium sand, and proportioning can be 25~40%.Medium temperature raw material
Including but not limited to medium temperature white sand, ultrawhite medium temperature sand, proportioning can be 20~35%.High temperature raw material include but not limited to high alumina
Sand, calcined kaolin, Xing Yuansha, proportioning can be 20~40%.In addition, because clay usage amount is on the low side, to prevent from precipitating, can lack
Thickening additive is added in amount, but cannot influence flow velocity.Preferably, the content for thickening additive is 0.1~0.5%.As thickening
Additive, including but not limited to polyvinyl alcohol, methylcellulose, organic reinforcing agent with some strength.In one example,
The formula of ceramic powder is as follows：
Clay raw material ratio：0~10%；
Low temperature potassium sodium sand raw material ratio：25~40%；
Medium temperature raw material ratio：20~35%；
High temperature raw material ratio：20~40%；
Thicken additive：0.1~0.5%.
Ceramic raw material is mixed into simultaneously wet ball grinding according to formula, prepares slurry.Ball-milling Time can be 10h~15h.After ball milling
It is sieved (such as crossing 80 mesh sieve), except iron (such as electromagnetism removes iron) etc..In the present invention, after clay dosage is reduced, flow rate of slurry is apparent
It improves, can suitably reduce slurry moisture, save water source while can reduce and make powder energy consumption.For example, moisture can be in slurry
29~32.5%.Flow rate of slurry can be 35~60 seconds.Slurry proportion can be 1.72~1.78.
By the ceramic slurry powder of gained.The present invention can use spray tower powder by spraying.By ceramic slurry spray gun in tower
Interior sprinkling mist formation drop-wise, the hot wind generated with hot-blast stove is in contact, and since droplet is thin, has huge disengagement area, can be fast
Speed completes drying, the graininess powder to be meeted the requirements.There is the preparation method of the present invention powder moisture, grain size easily to adjust；
The advantages of powder is hollow spherical particles, and good fluidity simplifies technique, improves productivity.The moisture requirement of powder obtained
Can be 2~4.5%.
Then, the prepared mixing water of institute is fully atomized on powder, it is mixed in atomization, it is ensured that uniform moisture.Institute
Stating mixing water is made up of uniform additive package in water.Special additive, main purpose are added inside mixing water
It is to improve the intensity of green body.It (such as can be by stirring, ball milling as long as additive disclosure satisfy that and can be uniformly dispersed in water
Mode makes additive be dispersed in water), can improve blank strength additive can, such as including but not limited to poly- second
Enol, sodium carboxymethylcellulose, polyvinyl chloride etc..Additive can be single additive, can also be additive package.Addition
Agent and water mixing and ball milling are uniform, and the atomization for being conducive to powder is uniform, can effectively improve blank strength.Water and addition 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 range, which can meet blank strength and be conducive to additive, is dissolved in water.If the ratio mistake of additive in mixing water
It is low, then it can lead to that blank strength is inadequate or dosage is excessive, powder Moisture high UCL is unfavorable for being molded；If the ratio mistake of additive
Height then can cause powder viscosity excessive, be unfavorable for being uniformly mixed, and moisture is too small, be unfavorable for being molded.Water and addition in mixing water
The ratio of agent is preferably 100：(5~15).Specific ratio is related with formula intensity, can meet production.Powder after spraying
Moisture can be controlled in 6.5~9.0% (specific moisture is depending on manufacturing technique requirents).By adjust mixing water dosage,
The ratio of water and additive can control the amount for being sprayed on the additive on powder.In one example, the additive amount of additive is
The 0.3~1.5% of above-mentioned powder quality.In addition, the additive amount of additive can also be adjusted according to the dosage of above-mentioned clay, clay
Fewer, additive usage amount is more, as long as can ensure that wet base intensity and dry base intensity can guarantee production requirement.
Powder after spraying is sieved, is aging, ceramic powder is prepared.Wherein sieving can be according to required ceramic powder
Material granularity selects, and preferably crosses 20 mesh sieve.The aging time can be 16~32 hours.
The present invention also provides the preparation methods of ceramic body.Ceramic powder obtained above is molded, ceramic blank is made
Body.Molding mode is not particularly limited, including but not limited to dry-pressing formed, half dry-pressing formed etc..
The prepare ceramic powder and ceramic body method of the present invention reduces ceramic formula clay usage amount, ensures simultaneously
Ceramic powder and blank strength are constant or enhanced, and are not had an impact to the processing of process.
In ceramic powder and ceramic body produced by the present invention, clay content is low (0~10wt%), while containing and being useful for increasing
The additive of reinforcement degree and the intensity that may insure ceramic powder and ceramic body.
The beneficial effects of the invention are as follows：Compared with the ceramic formula of the prior art, ceramic powder clay dosage of the invention
Be reduced to 10% hereinafter, the shortage of non-renewable resources can be solved the problems, such as from 22~30%, improve the sustainable of ceramic industry
Development；After clay dosage is reduced, flow rate of slurry significantly improves, and can suitably reduce slurry moisture, and saving water source can drop simultaneously
It is low to make powder energy consumption.Meanwhile there is preparation method of the invention powder moisture, grain size easily to adjust；Powder is hollow spherical particles, stream
Dynamic property is good, the advantages of simplifying technique, improve productivity.
Embodiment is enumerated further below so that the present invention will be described in detail.It will similarly be understood that following embodiment is served only for this
Invention is further described, and should not be understood as limiting the scope of the invention, those skilled in the art is according to this hair
Some nonessential modifications and adaptations that bright the above is made all belong to the scope of protection of the present invention.Following examples are specific
Technological parameter etc. is also only an example in OK range, i.e. those skilled in the art can be done properly by the explanation of this paper
In the range of select, and do not really want to be defined in hereafter exemplary concrete numerical value.In following embodiment, albite in powder is purchased from little Qiao
Mining plants, feldspar in powder are purchased from Eastcom's ceramics mining plants, and high temperature sand is purchased from Hua Sheng ceramic raw materials business department, and medium temperature sand is purchased from of heap of stone prosperous
Mining industry Co., Ltd, mixed soil are preced with Hong Cituchang purchased from still moral, and polyvinyl alcohol is purchased from Yong Chuan ceramic raw materials business department.
Embodiment 1
Table 1：Each raw material title, proportioning and its chemical composition are as follows：
| Serial number | Material name | Proportioning | IL | SiO2 | Al2O3 | Fe2O3 | TiO2 | CaO | MgO | K2O | Na2O | It is total |
| 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 | Medium 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, after the above-mentioned raw material in addition to polyvinyl alcohol and moisture also known as being measured according to formula in 20 tons of ball mills ball
10~15h is ground, tails over control at 0.6-0.8% (250 mesh)；80 mesh sieve is crossed afterwards, and electromagnetism obtains ceramic slurry, slurry water after removing iron
Divide 31%；Flow velocity 45 seconds；Proportion 1.75；
Ceramic slurry is dusted using conventional ceramic mist projection granulating tower, powder moisture 4.0% after dusting；
Prepare mixing water：Polyvinyl alcohol presses 100 with water:10 ratio mixing and ball milling 3-6h；
Then, the prepared mixing water of institute is fully atomized with water knife machine and is equably sprayed on powder, it is mixed in atomization,
Ensure that uniform moisture, the dosage of mixing water and the ratio of powder are 4：100, the powder moisture after atomization can be controlled 7.5
~8.0%；Powder after atomization is sieved, is aging, ceramic powder prepares.It is small wherein to spend the sieved 20 mesh sieve aging time 24
When；
It send ceramic powder obtained to compression moulding at press, ceramic body is made.
It is detected through flexural 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 its chemical composition, manufacturer are as follows：
| Serial number | Material name | Proportioning | IL | SiO2 | Al2O3 | Fe2O3 | TiO2 | CaO | MgO | K2O | Na2O | It is total |
| 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 | Medium 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, after above-mentioned raw materials and moisture also known as being measured according to formula in 20 tons of ball mills 10~15h of ball milling, tail over control
System is at 0.6-0.8% (250 mesh)；80 mesh sieve is crossed afterwards, and electromagnetism obtains ceramic slurry, slurry moisture 33.5% after removing iron；Flow velocity 65
Second；Proportion 1.72；
Ceramic slurry is dusted using conventional ceramic mist projection granulating tower, powder moisture 8.0% after dusting；；
Ceramic body is made in ceramic powder obtained as described in Example 1.
It is detected through flexural strength instrument DPK-300/1000, the intensity of gained ceramic body is 1.08Mpa.
By the present embodiment 1 it is found that after the reduction of clay dosage, flow rate of slurry significantly improves, and can properly increase slurry moisture and contain
Amount is saved water source while can be reduced and makes powder energy consumption.By embodiment 1 and reference example 1 it is found that the present invention reduces the preparation of clay usage amount
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 its chemical composition are as follows：
| Serial number | Material name | Proportioning | IL | SiO2 | Al2O3 | Fe2O3 | TiO2 | CaO | MgO | K2O | Na2O | It is total |
| 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 | Medium 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, after the above-mentioned raw material in addition to polyvinyl alcohol and moisture also known as being measured according to formula in 20 tons of ball mills ball
10~15h is ground, tails over control at 0.6-0.8% (250 mesh)；80 mesh sieve is crossed afterwards, and electromagnetism obtains ceramic slurry, slurry water after removing iron
Divide 30.5%；Flow velocity 50 seconds；Proportion 1.76；
Ceramic slurry is dusted using conventional ceramic mist projection granulating tower, powder moisture 3.0% after dusting；
Prepare mixing water：Polyvinyl alcohol presses 100 with water:15 ratio mixing and ball milling 3-6h；
Then, the prepared mixing water of institute is fully atomized with water knife machine and is equably sprayed on powder, it is mixed in atomization,
Ensure that uniform moisture, the dosage of mixing water and the ratio of powder are 5：100, the powder moisture after atomization can be controlled 7.5
~8.0%；Powder after atomization is sieved, is aging, ceramic powder prepares.It is small wherein to spend the sieved 20 mesh sieve aging time 24
When；
It send ceramic powder obtained to compression moulding at press, ceramic body is made.Through flexural strength instrument DPK-300/
The intensity of 1000 detections, gained ceramic body is 1.8Mpa.
Comparative example 1
Table 4：Each raw material title, proportioning and its chemical composition are as follows：
| Serial number | Material name | Proportioning | IL | SiO2 | Al2O3 | Fe2O3 | TiO2 | CaO | MgO | K2O | Na2O | It is total |
| 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 | Medium 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% |
After above-mentioned raw materials and moisture are also known as measured according to formula in 20 tons of ball mills 10~15h of ball milling, detection without flow velocity,
Without legal system powder.
Claims (15)
1. a kind of preparation method of ceramic powder, which is characterized in that including：
Obtained first powder that dusts is made after slurry in ceramic sand material or the ceramic raw material containing ceramic sand material and clay,
In in the ceramic raw material, the content of clay is more than 0 and is 10 wt% hereinafter, moisture is 29~32.5% in the slurry,
Flow rate of slurry is 35~60 seconds；
In water uniform additive package and form mixing water, wherein the additive is to can be uniformly dispersed in water and can carry
The additive of high blank strength, the additive are at least one in polyvinyl alcohol, sodium carboxymethylcellulose and polyvinyl chloride
Kind；
It is uniformly mixed by the mixing water atomization and with first powder, obtains ceramic powder.
2. according to the preparation method described in claim 1, which is characterized in that in the ceramic raw material, the content of the clay
To be more than 0 and being 8 wt% or less.
3. preparation method according to claim 1, which is characterized in that the ceramic sand material includes low temperature potassium sodium sand, medium temperature
Sand and high temperature sand, the wherein content of low temperature potassium sodium sand are 25~40wt %, and the content of medium temperature sand is 20~35wt %, high temperature sand
Content is 20~40wt %.
4. preparation method according to claim 1, which is characterized in that also contain 0.1~0.5 wt% in the ceramic raw material
Thickener.
5. preparation method according to claim 1, which is characterized in that the slurry proportion is 1.72~1.78.
6. preparation method according to claim 1, which is characterized in that the moisture of first powder is 2~4.5 wt%.
7. preparation method according to claim 1, which is characterized in that in mixing water, the mass ratio of water and additive is
100：（3~25）.
8. preparation method according to claim 7, which is characterized in that in mixing water, the mass ratio of water and additive is
100：（5~15）.
9. preparation method according to claim 1, which is characterized in that by the mixing water atomization and with first powder
After evenly mixing, powder moisture is in 6.5~9.0 wt%.
10. preparation method according to claim 1, which is characterized in that the additive amount of additive is the first powder quality
0.3~1.5%.
11. preparation method according to any one of claim 1 to 10, which is characterized in that simultaneously by the mixing water atomization
After evenly mixing with first powder, it also carries out aging.
12. preparation method according to claim 11, which is characterized in that the aging time is 16~48 hours.
13. preparation method according to claim 12, which is characterized in that the aging time is 16~32 hours.
14. a kind of preparation method of ceramic body, which is characterized in that including：
Preparation method according to any one of claim 1 to 13 prepares ceramic powder；And
Ceramic powder obtained is molded, ceramic body is obtained.
15. ceramic powder made from a kind of preparation method according to any one of claim 1 to 13.
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| 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 |
| 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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| 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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| 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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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. |
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