CN110436938A - Foamed ceramic wallboard and preparation method thereof - Google Patents
Foamed ceramic wallboard and preparation method thereof Download PDFInfo
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- CN110436938A CN110436938A CN201910791152.0A CN201910791152A CN110436938A CN 110436938 A CN110436938 A CN 110436938A CN 201910791152 A CN201910791152 A CN 201910791152A CN 110436938 A CN110436938 A CN 110436938A
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/62204—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products using waste materials or refuse
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- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/02—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents
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- 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
- C04B2235/3436—Alkaline earth metal silicates, e.g. barium silicate
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- 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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- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
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Abstract
The present invention provides a kind of foamed ceramic wallboards and preparation method thereof.The foamed ceramic wallboard is by ceramic grinding and polishing waste material 50~90%, feldspar 5-10%, calcination of talc 0-5%, the manganese ore tail mud 0~30% in terms of mass percentage, lithium feldspar 0~2%, admaic earth 1~10%, silicon carbide 0.25~1.0%, stabilizer 2~5% is homogenized, ball milling, drying, loading of kiln, firing and cutting processing step are prepared.Foamed ceramic partition plate of the present invention has the characteristics such as low, the non-ignitable, non-immersing of pyroconductivity, is a kind of ideal building partition material, have the characteristics that good insulated fire, water-fast moisture-proof, sound insulation lightweight, mechanical property, sharp useless energy conservation, construct it is quick.
Description
Technical field
The present invention relates to the technical fields of wallboard, and in particular to a kind of foamed ceramic wallboard and preparation method thereof.
Background technique
As building wall board is environmentally friendly, durable, sound insulation, heat preservation energy-saving development trend, the development of domestic various wallboard new materials
It comes into being, wherein foamed ceramic wallboard is a kind of new material developed in recent years.
CN107188534A discloses a kind of method for preparing integrated walling using ceramic slag and monocrystalline silicon grinding and polishing waste material, should
Method prepares insulating layer with ceramic slag, base layer is prepared with the mixed raw material of ceramic slag and monocrystalline silicon grinding and polishing waste material, by insulating layer
Integrated walling is made using the method for high temperature co-firing with base layer, wherein insulating layer by be added into ceramic slag additive and
Foaming agent is made, and base layer is made up of hybrid ceramic slag, monocrystalline silicon grinding and polishing waste material and additive sintering.
CN107382278A discloses a kind of foamed ceramic partition plate, is sintered by the raw material for including following mass percentage
It obtains: ceramic grinding and polishing waste material 70~95%, metal oxide 0.5~5.5%, Ceramic Sludge 0~25%, silicon carbide 0.2~
0.4%.
CN103992099A discloses a kind of method for preparing environmental protection type honeycomb ceramic heat storage body using abandoned mine slag, a large amount of
It introduces on the basis of abandoned mine slag and optimization conventional process flow, new sintering method and technology is applied to traditional ceramics
Among product, using dry process, one-pass molding, laser is burnt into short-term twice.
CN101560088B disclose it is a kind of can steam pressure pitchers brick to polish pitchers as major ingredient, by including following weight
The raw material of degree is made after compounding, mixing plus water refining, ageing, compression moulding and steam press maintenance, polishes pitchers 30
~90%, gather materials 0~60%, exciting agent 5~30%, admixture 0~20%；Wherein, the polishing pitchers be Imitation Rock Porcelain Tiles or
Pulpous state waste material in the polishing of porcelain plate, the polishing production line resulting waste residue after dehydration, drying and crushing, polishes the grain of pitchers
Degree is 0.15~50 μm.
CN105801150B discloses a kind of preparation method of manganese ore tailing ceramic wafer, by forging for manganese ore tailing
Burn pretreatment, oil drilling waste liquid dipping, re-optimization prepare ceramic wafer raw material composition and its content, adjust the materialization of ceramic wafer
Performance prepares intensity height, the manganese ore tailing ceramic wafer of lightweight.
CN108452939A discloses a kind of resource utilization of manganese ore mud using equipment, uses full automatic recycling benefit
With process equipment, including mud pit, Spiral classfier, manganese slurry reserve tank, the manganese slurry crusher that manganese ore mud can be crushed, being capable of magnetic
It selects the electromagnetic separator of subtle manganese particle, dense tower, filter press and the press drier of manganese ore slurry is concentrated.
CN102181668B discloses a kind of method of high armangite tailing combined extracting arsenic, utilizes arsenic grade weight 9
~11% high armangite tailing is raw material, using acidleach-electrolysis-distillation process integration, dissolves tail with wet chemistry lixiviation process
Arsenic mineral in mine, then by the arsenic in leachate elemental arsenic is reduced to using electrolysis method to leachate, then using sublimed method into
The purification of one step, obtains arsenic product.
" development of iron tailings light-weight insulating brick ", Wu Qingwen etc., ceramic journal, 01 phase in 2019, with iron tailings and camwood
Section clay is primary raw material, and pore former is added, and ground mixing, molding, dry and firing can prepare iron tailings light thermal-insulation
Brick, the results showed that four kinds of selected dolomite, calcium carbonate, magnesium carbonate and coal dust pore formers, relatively reasonable pore former are
Dolomite.When additional amount 20wt.%, 1100 DEG C of firing temperature, soaking time 20min, the light-weight insulating brick porosity of preparation reaches
65.7vol.%, compression strength 7.1MPa meet MJ5.0 standard (intensity >=5.0MPa) requirement；Bulk density is 1.10g/
Cm~3 meet the density requirements (0.75-1.20g/cm~3) of light-weight insulating brick.It can be used as civilian Deng building heat preservings material.
Polished waste material can be generated in architectural pottery production process, (polished waste material and edging waste material are referred to as grinding edging waste material
Throw waste material)；The Various Wastes such as the manganese ore tail mud that ore generates refine in other enterprises, these waste materials itself have plurality of impurities, are
The problem of fixed-end forces.It can be kept the temperature at present with adding other ingredients based on ceramic grinding and polishing waste material and producing a kind of foamed ceramic in industry
Plate, but insulation board product specification is smaller, it is not high to mechanical property requirements.And the product requirement specification for being used as partition plate is larger,
And require mechanical property good, but ceramic product needs to be sintered, and also to cool down after sintering, is easy to lead in sintering-cooling process
Product cracking is caused, is not easy to be prepared into the wallboard product of big specification, and mechanical property is difficult to ensure.
In addition, the utilization rate of the grinding and polishing waste material of ceramic industry at present is all lower；Manganese ore tail mud is even more to be difficult to be utilized, can not
The waste material utilized can direct discard processing, not only saved resource by turning waste into wealth, also reduce environment for human survival dirt
Dye.
Summary of the invention
It to overcome the shortcomings of existing technologies, is to utilize ceramics the purpose of the present invention is to provide a kind of foamed ceramic wallboard
Grinding and polishing waste material and manganese ore tail mud are primary raw material, its mechanics is improved while reducing environmental pollution, turning waste into wealth, fire prevention, is prevented
The performances such as the moisture-proof, heat preservation and soundproof of water, internal porosity is independent, and no permeability does not crack, lightweight, further increases material itself
Mechanical performance.
Another object of the present invention is to provide a kind of preparation methods of foamed ceramic wallboard.
To achieve the above object, the technical solution adopted in the present invention is as follows:
A kind of foamed ceramic wallboard, the foamed ceramic wallboard is by including that the raw material of following mass percentage is made: pottery
Porcelain mill throws waste material 50~90%, feldspar 5-10%, calcination of talc 0-5%, manganese ore tail mud 0~30%, and lithium feldspar 0~2% is red viscous
Soil 1~10%, silicon carbide 0.25~1.0%, stabilizer 0~5%.
Preferably, a kind of foamed ceramic wallboard, the foamed ceramic wallboard are the ceramics by following mass percentage
Grinding and polishing waste material 50~90%, feldspar 5-10%, calcination of talc 0-5%, manganese ore tail mud 0~25%, lithium feldspar 0~2%, admaic earth
1~10%, the raw material of silicon carbide 0.25~0.5%, stabilizer 2~3.5% is prepared.
Preferably, in order to reach optimal sintering effect, and in suitable firing temperature, the foamed ceramic wallboard is logical
It crosses with the ceramic grinding and polishing waste material 72.3% of mass percentage, feldspar 5.5%, calcination of talc 2.4%, manganese ore tail mud 10.18%,
Silicon carbide 0.32%, admaic earth 6.1%, 3.2% raw material of stabilizer are prepared.
The stabilizer is the conventional stabilizer of this field, such as the stabilizer for aerated bricks manufacture.
Preferably, foamed ceramic wallboard of the present invention with a thickness of 8-12cm.By changing foamed ceramic wallboard
Formula, further increases the mechanical property effect of foamed ceramic wallboard, and foamed ceramic wallboard density of the present invention is 400-
430Kg/m3, under the density, the obvious excellent mechanical property effect due to the prior art of mechanical property effect of the invention.In order to
Further improve the mechanical property of foamed ceramic wallboard, it is preferred that the diameter of stomata of the present invention is 0.9-1.2mm.
Ceramics grinding and polishing waste material of the present invention refers to that polishing is ground generated waste material, manganese in ceramic tile producing process
Mine tail mud refers to the complete rear waste material generated of mine exploitation, extracting metals process.
Preferably, the content of arsenic (As) is lower than 0.1wt.%, more preferably less than 0.05wt.% in the manganese ore tail mud；Pb
Content is lower than 0.1wt.%, more preferably less than 0.05wt.%；Cr content is lower than 0.05wt.%, more preferably less than 0.02wt.%.
Many manganese ores are all associated with the poisonous metal of high-content, especially arsenic, lead and/or chromium, such as armangite just contains
The arsenic of high level, and arsenic has serious harm to human body, if arsenic in foamed ceramic wallboard is not after further treatment, Ke Neng
There is the risk for leaching or polluting in use, for the application of certain requirements, it is especially low to may require that foamed ceramic wallboard has
Poisonous metal content such as arsenic content.Therefore, when there are also when the optimization metal of significant quantity in manganese ore tail mud, it is preferable that preparing
When foamed ceramic wallboard, the manganese ore tail mud is subjected to de- poisonous metal processing.Based on this, the manganese ore tail mud preferably through
The manganese ore tail mud that following methods obtain: (1) manganese ore tail mud is ground, it is preferable that the manganese ore tail mud diameter after grinding is less than
0.20mm, more preferably less than 0.1mm；(2) water is added into the manganese ore tail mud ground, is uniformly mixed and forms slurry, it will at least one
The water-soluble dialkyl dithiocarbamate of kind is added in the slurry, is uniformly mixed (incorporation time is preferably 2-8h),
Filter the slurry, the dry manganese ore tail mud to get de- poisonous metal.
Preferably, the dosage of the dialkyl dithiocarbamate is preferably capable removing in manganese ore tail mud
50wt.%, preferably 70wt.%, arsenic in the total amount, lead and/or the chromium of more preferable 90wt.%, more preferable 95wt.% or more.
In the above-mentioned methods, the water-soluble dialkyl dithiocarbamate and poisonous metal arsenic, lead and/or chromium have
There is stronger complexing power, to form complex compound, which is filtered out by filtering.Filter liquor can carry out the metal
Enrichment, to realize the recycling of arsenic, lead and/or chromium, while removing the poisonous metal, realizes its recycling, thus
Improve the mixed economy value of the technique.For high armangite, the amount of the recyclable arsenic of the method is considerable.
For the general complexing agent of this field, such as EDTA, while arsenic, lead and/or chromium is complexed, often to manganese
The particle microstructure of mine tail mud is caused to corrode and be injured, to cause final foamed ceramic wallboard obtained strong to a certain extent
Degree reduces.For recycling 90% or more arsenic, lead and/or the amount of complex of chromium, dialkyl dithiocarbamate is used
When be only to the reduction amplitude of foamed ceramic wallboard strength EDTA 10%-20.
Preferably, the dialkyl dithiocarbamate is preferably or mixtures thereof sodium salt, sylvite and ammonium salt, described
Ten thousand bases are preferably the straight chained alkyls such as methyl, ethyl, propyl.For example, the dialkyl dithiocarbamate is diethyl two
Thiocarbamic acid sodium.
In preferred scheme, in order to avoid secondary pollution, what the foamed ceramic wallboard that the present invention processes was generated in cutting
Waste material can also be used as raw material；0-20% foamed ceramic wallboard waste material can wherein be added.
In another aspect of this invention, a kind of preparation method of foamed ceramic wallboard is provided, comprising the following steps:
1) ceramic grinding and polishing waste material and manganese ore tail mud feedstock processing: are homogenized processing in material storage yard respectively.
2) ball milling: all raw material components are mixed in proportion, are the addition of 1:0.5~0.6 according to mixed composition total mass ratio
Water carries out wet ball grinding.
3) it dries: will be dried after the good slurry sieving of ball milling, into spray drying tower.
4) loading of kiln: dried powder is packed into kiln car by automatic stone equipment.
5) it is burnt into: being fired in continous way tunnel kiln.
6) it cutting processing: fires resulting product and is cut into required size.
In order to further increase the uniformity of foaming, it is preferred that the revolving speed of ball milling is 13~18 turns/min in step 2)；Institute
The time for stating ball milling is 7~9h.Preferably, the temperature fired in step 5) is 1150~1200 degree.
It preferably,, can be to mixed component in the ball-milling treatment of step 2) if in order to obtain optimal ball milling effect
Middle addition surfactant.
It is highly preferred that the surfactant is the mixture of oleic acid and polyvinyl alcohol.
It is highly preferred that the weight ratio of the oleic acid and polyvinyl alcohol is 2:1-10:1, preferably 3:1-8:1.
It is highly preferred that the dosage of the mixture of the oleic acid and polyvinyl alcohol is mixed component 500-1000g per ton, it is optimal
Select 500-800g.
The study found that oleic acid and being applied in combination for polyvinyl alcohol can compared with existing one-component surfactant
Take into account the grinding of both ceramic grinding and polishing waste material and manganese ore tail mud.
The surfactant can enhance the dispersion of solid material, reduce power consumption and improve grinding productivity, specific machine
System is that surface atom key can be made to weaken, to drop low-surface-energy and microcrack energy, microcrack leads to the increase of fracture, table
Face activating agent is distributed in fracture faces and hinders its closure.Surfactant can also be such that the surface tension of water is greatly lowered.This
Solution can be made to be easy spreading wetting at the surface of the particles and permeated.When surfactant penetrates into micro-crack, in grinding
These surfactant solutions penetrated into crackle can generate biggish pressure in the process, extend crackle faster, this
Just it is easier waste material and tail mud particle broken.
Oleic acid can produce suitable zeta current potential, and the hardness for grinding solid near surface occurs by surface zeta potential current potential
Change.Meanwhile the use of polyvinyl alcohol can also make the material particle in grinding machine be become hydrophily from hydrophobicity and be soaked, and make to grind
Abrasive media will not generate high temperature and be carbonized during mill, can extend the grinding machine service life.
When using conventional surfactant such as lauryl sodium sulfate, grinding effect is bad, returns its reason, is
The surfactant is easy to produce a large amount of foam, these foams play insulating effect, makes other liquid and surfactant
It can not penetrate into, so as to cause grinding efficiency decline.The foamed ceramic wallboard prepared after so grinding, compression strength with not
Surfactant is added to compare, about 10%MPa can be improved, reach such as 5.4-7.0MPa.
The present inventor also found that above-mentioned surfactant can also effectively play foaming in subsequent firing step through research
The effect of agent, to make foamed ceramic wallboard obtained that there is ideal air hole structure and porosity.It is passed with better solar heat protection
The property led harmony conductibility.
For the present invention, above-mentioned manganese ore tail mud takes off poisonous metal processing or table is added in the ball-milling treatment of step 2)
Face activating agent is under special circumstances only the preferred process mode for obtaining more preferably effect, is not to realize the object of the invention
Necessary processing step.
It compared with prior art, is to utilize ceramics the beneficial effects of the present invention are foamed ceramic wallboard of the present invention
Grinding and polishing waste material and manganese ore tail mud are primary raw material, and after harmless treatment, obtained product has unique sealed porosity, are reduced
Its heat transfer efficiency, the characteristic for making foamed ceramic wallboard have pyroconductivity low, is a kind of ideal construction material, has
The features such as insulated fire, water-fast moisture-proof, sound insulation lightweight, good, sharp useless energy saving, construction is quick mechanical property, efficiently solve building
The deficiencies of wall hollow drum, cracking, leakage, big field operation amount.And significantly improve the substantial effect and building of building energy conservation
The service life of object.
Detailed description of the invention
The present invention is further detailed below with attached drawing, but the embodiment in attached drawing is not constituted to this hair
Bright any restrictions.
Fig. 1 is the exterior appearance photo of foamed ceramic wallboard according to the present invention；
Fig. 2 is the cross-section photograph of foamed ceramic wallboard according to the present invention；
Fig. 3 is the outer surface photo of foamed ceramic wallboard according to the present invention.
Specific embodiment
Below with reference to specific embodiment, the present invention will be described.
Embodiment 1
A kind of preparation method of foamed ceramic partition plate, comprising the following steps:
1) ceramic grinding and polishing waste material and manganese ore tail mud etc. feedstock processing: are homogenized processing in material storage yard respectively.
2) ball milling: all raw material components are mixed in proportion, are the addition of 1:0.5~0.6 according to mixed composition total mass ratio
Water carries out wet ball grinding.
3) it dries: will be dried after the good slurry sieving of ball milling, into spray drying tower.
4) loading of kiln: dried powder is packed into kiln car by automatic stone equipment.
5) it is burnt into: being fired in continous way tunnel kiln.
6) it cutting processing: fires resulting product and is cut into required size.
Table 1 is particularly preferred embodiment of the present invention, wherein being that strength 1-6 is specifically formulated and is shown in Table 1.Embodiment 1-6 is pressed
It is prepared according to the above method.
Table 1: formula specific embodiment
To above-mentioned implementation 1-6 according to GB/T23451-2009 " light partition board for building " to the property of foamed ceramics wallboard
It can be carried out test, test result is shown in Table 2:
Table 2: the performance test results
This written description discloses the present invention, including optimal mode using example, and also enables those skilled in the art
The manufacture and use present invention.It is of the invention can patentable scope be defined by the claims, and may include this field skill
Other examples that art personnel expect.If this other examples have not different from the structural elements of the literal language of claims
Element, or if this other examples include the equivalent structure element with the literal language of claims without substantial differences,
Then this other examples are intended within the scope of claims.In the case where not will cause inconsistent degree, by reference to
It will be incorporated herein in place of all references referred to herein.
Claims (10)
1. a kind of foamed ceramic wallboard, which is characterized in that be made by the raw material for including following mass percentage: ceramic grinding and polishing is useless
Material 50~90%, feldspar 5-10%, calcination of talc 0-5%, manganese ore tail mud 0~30%, lithium feldspar 0~2%, admaic earth 1~
10%, silicon carbide 0.25~1.0%, stabilizer 0~5%.
2. foamed ceramic wallboard according to claim 1, which is characterized in that by the raw material including following mass percentage
Method through including sintering step is made: ceramic grinding and polishing waste material 50~90%, feldspar 5-10%, calcination of talc 0-5%, manganese ore tail
Mud 0~25%, lithium feldspar 0~2%, admaic earth 1~10%, silicon carbide 0.25~0.5%, stabilizer 2~3.5%.
3. foamed ceramic wallboard according to claim 1 or 2, which is characterized in that by including following mass percentage
Raw material passes through the method including sintering step and is made: ceramic grinding and polishing waste material 72.3%, feldspar 5.5%, calcination of talc 2.4%, manganese ore
Tail mud 10.18%, silicon carbide 0.32%, admaic earth 6.1%, stabilizer 3.2%.
4. foamed ceramic wallboard according to claim 1 or 2, which is characterized in that the foamed ceramic wallboard raw material also wraps
Include 0~20% foamed ceramic wallboard waste material.
5. foamed ceramic wallboard according to claim 1 or 2, which is characterized in that the density of the foamed ceramic wallboard is
400~430kg/m3。
6. foamed ceramic partition plate according to claim 1, which is characterized in that the bubble of the foamed ceramic partition plate is flat
Equal diameter is 0.9~1.2mm.
7. the preparation method of foamed ceramic partition plate described in claim 1~6 any one, comprising the following steps:
1) ceramic grinding and polishing waste material and manganese ore tail mud feedstock processing: are homogenized processing in material storage yard respectively.
2) ball milling: all raw material components are mixed in proportion, are that water is added in 1:0.5~0.6 according to mixed composition total mass ratio, into
Row wet ball grinding.
3) it dries: will be dried after the good slurry sieving of ball milling, into spray drying tower.
4) loading of kiln: dried powder is packed into kiln car by automatic stone equipment.
5) it is burnt into: being fired in continous way tunnel kiln.
6) it cutting processing: fires resulting product and is cut into required size.
8. preparation method according to claim 7, which is characterized in that in the step 1) feedstock processing be mechanical windrow or
Displacement homogenizing.
9. preparation method according to claim 7, which is characterized in that the revolving speed of ball milling is 13~18 in the step 2)
Turn/min；The time of the ball milling is 7~9h.
10. preparation method according to claim 7, which is characterized in that the temperature fired in the step 5) is 1150~
1200℃。
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| CN112592156A (en) * | 2020-12-15 | 2021-04-02 | 广东金意陶陶瓷集团有限公司 | Foamed ceramic and preparation method and application thereof |
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