CN103467066B - Microcrystal bamboo charcoal purple sand composite pottery material and application thereof - Google Patents
Microcrystal bamboo charcoal purple sand composite pottery material and application thereof Download PDFInfo
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- CN103467066B CN103467066B CN201310449413.3A CN201310449413A CN103467066B CN 103467066 B CN103467066 B CN 103467066B CN 201310449413 A CN201310449413 A CN 201310449413A CN 103467066 B CN103467066 B CN 103467066B
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Abstract
The invention relates to a microcrystal bamboo charcoal purple sand composite pottery material and application of the microcrystal bamboo charcoal purple sand composite pottery material. The microcrystal bamboo charcoal purple sand composite pottery material is composed of, by weight, 5-40% of microcrystal bamboo charcoal powder, 40-60% of purple sand powder, 10-30% of attapulgite, 5-30% of kieselguhr and 1-5% of binder in a mixing mode. The microcrystal bamboo charcoal purple sand composite pottery material can be used for manufacturing a microcrystal bamboo charcoal purple sand composite pottery, the steps for manufacturing the microcrystal bamboo charcoal purple sand composite pottery are specifically forming, air drying, drying, calcination and cooling, and therefore the microcrystal bamboo charcoal purple sand composite pottery can be obtained. According to the microcrystal bamboo charcoal purple sand composite pottery material and the application of the microcrystal bamboo charcoal purple sand composite pottery material, through different raw material ratios and calcination crafts, the manufactured microcrystal bamboo charcoal pottery after processing is low in firing shrinkage coefficient, high in bending strength and strong in adsorption of formaldehyde, phenol, sulfur dioxide, TVOC and other hazardous substances and can be manufactured into pottery materials of different water adsorption rates as required.
Description
Technical field
The present invention relates to a kind of Microcrystal bamboo charcoal purple sand composite pottery material and application thereof of high absorption property, belong to compound pottery material field.
Background technology
Bamboo plant growth is fast, and fertility is strong, regenerating easily, and bamboo wood has many premium properties such as intensity is high, good toughness.With its hard, fine and closely woven porous of High-temperature crystallite bamboo charcoal quality for raw material production, specific area is large, absorption affinity is strong, not only can be used for the aspects such as fuel energy, the depollution of environment, room moisture absorption deodorizing, soil improvement, preserving fruit and vegetable utilizing, daily-use health-care, also can be applicable to the high-technology fields such as radiation proof, electromagnetic shielding, flame-proof composite material and semi-conducting material.
Due to a series of advantage of High-temperature crystallite bamboo charcoal, be applied to pottery aspect, better can expand the application in kitchen tools, tableware, food container, art etc., more can improve scientific and technological content and the economic worth of pottery industry.
High-temperature crystallite bamboo charcoal pottery is a kind of novel biomass pottery product developed nearly ten years, and its existing certain mechanical strength has again certain porosity, for drinking tea, cooking, and not only can not seepage but also have good gas permeability.Crystallite bamboo charcoal pottery has sterilization fresh-keeping, the function of beneficiating ingredient in activation tealeaves, and containing various trace elements, is more conducive to health care.With crystallite bamboo charcoal ceramic do marmite be culinary art good device, it is more tasty that food taste ratio metal electric rice cooker, the electric chafing dishes such as the meal of working it out with it, congee, soup are worked it out.
Through investigation, there is enterprise to utilize crystallite bamboo charcoal to produce various crystallite bamboo charcoal pottery material for adding material manufacture at present at home and abroad, but also had certain limitation in composition of raw materials and manufacturing process, have impact on the effect of application.The firing temperature of the primary raw material crystallite bamboo charcoal that claims of these patents of invention are pointed out is all lower than 1000 DEG C, bamboo charcoal does not also become graphitization microstructure completely, thus the crystallite bamboo charcoal pottery micropore that the micropore making bamboo charcoal ceramic is fired far away from the present invention is various, have impact on the adsorption function of bamboo charcoal ceramic.
At present, from conventional ceramic grain filter, active carbon, zeolite and biological ceramic particle etc. mostly are.These bio-carrier Problems existing are: (1) active carbon: although have huge specific area, adsorption capacity is extremely strong, and the physical strength of active carbon is low, the life-span is short, easy cleaning, disposal cost are not high.(2) zeolite: because aperture is excessive and shone into that specific area is little, adsorption capacity is poor.(3) at present conventional other biological ceramsite material also also exists a lot of defects: at the bottom of porosity, and especially micro content is low and rough surface is not enough.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of Microcrystal bamboo charcoal purple sand composite pottery material and application thereof, solve the deficiencies in the prior art, high adsorption function crystallite bamboo charcoal pottery material of the present invention and application thereof, by different pulp furnish and burning process, it is low that the crystallite bamboo charcoal pottery be processed into has percent of firing shrinkage, rupture strength is large, the adsorption rate of PARA FORMALDEHYDE PRILLS(91,95), phenol, sulfur dioxide, TVOC and other harmful substances is strong, and can make the pottery material possessing different water absorption rate (15% ~ 40%) as required.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of Microcrystal bamboo charcoal purple sand composite pottery material, mixed by the component of following percentage by weight and form: crystallite bamboo charcoal powder 5 ~ 40%, boccaro powder 40 ~ 60%, attapulgite 10 ~ 30%, diatomite 5 ~ 30% and binding agent 1 ~ 5%.
On the basis of technique scheme, the present invention can also do following improvement.
Further, described crystallite bamboo charcoal powder, then to be obtained after carrying out fragmentation through more than 1200 DEG C high-temperature firings by graphite crystallization bamboo charcoal, and its particle diameter is less than 2000 orders.
Further, the average grain diameter of described boccaro powder is 300nm ~ 800nm, described boccaro powder after 800 ~ 1150 DEG C are fired at normal direction total radiation emissivity >=88% of far infrared wavelength 4 ~ 14 μm.
Further, the attapulgite clay mineral that described attapulgite adopts attapulgite content to be not less than 78% is raw material, and obtain after fragmentation, its particle diameter is less than 200 orders.
Further, described diatomite adopts SiO
2content is raw material at the diatomite original ore of 85% ~ 98%, obtains after fragmentation, and its average grain diameter is 1 ~ 100 μm.
Further, described binding agent is for improving the plastic binding agent of blank.
Another technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of purposes of Microcrystal bamboo charcoal purple sand composite pottery material, and described Microcrystal bamboo charcoal purple sand composite pottery material can be used for preparation crystallite bamboo charcoal boccaro compound pottery.
On the basis of technique scheme, the present invention can also do following improvement.
Further, the concrete steps of described preparation crystallite bamboo charcoal boccaro compound pottery are: by Microcrystal bamboo charcoal purple sand composite pottery material after overmolding, air-dry, drying, put into vacuum drying oven, nitrogen furnace or hydrogen reducing furnace to calcine, be cooled to room temperature after calcining terminates, namely obtain crystallite bamboo charcoal boccaro compound pottery.
Further, the concrete steps of described calcining are: be warming up to 400 DEG C of temperature when the programming rate of 100 DEG C/h and constant temperature 20min, 600 DEG C are warming up to again when the programming rate of 100 DEG C/h, 800 DEG C ~ 1150 DEG C are warming up to again, insulation 30min when the programming rate of 150 DEG C/h.
Further, the porosity of described crystallite bamboo charcoal boccaro compound pottery is 15% ~ 40%.
The invention has the beneficial effects as follows: Microcrystal bamboo charcoal purple sand composite pottery material of the present invention possesses the integrated pellet in bamboo charcoal, diatomite and purple sand ceramics many tag types absorption aperture, the very wide model of purposes.Its major advantage is: (1), due to purple sand ceramics inherently porous pottery material, is mixed crystallite bamboo charcoal and diatomite on this basis, substantially increased the porosity of pottery.Simultaneously unit are inner air vent increase the thermal coefficient of expansion that can reduce pottery material, make the thermal shock resistance of material more excellent; (2) crystallite bamboo charcoal boccaro new composite tea set pottery is compared and traditional pottery tea set, and the porosity is larger, and possesses effect releasing far infrared for a long time, and the function of Long-Time Service to human organ is improved effect; (3) with the addition of attapulgite as plastic raw material, make molding effect better, and be conducive to reducing sintering temperature, 800 DEG C of low temperature just can sinter DB into, reduce energy consumption; (4) other special-shaped potteries compared by this crystallite bamboo charcoal boccaro composite special-shaped piece pottery, and have color simpleness, good hand touch, intensity meets the requirements.In addition, due to the function that it is releasing far infrared, useful to human body; (5) crystallite bamboo charcoal boccaro compound slab technique pottery is compared to classic flat-plate pottery, equally due to its releasing far infrared function, useful to human body; (6) crystallite bamboo charcoal boccaro compound pottery is a kind of environment-friendly material of environment affinity type, has porous and fragility, and after discarded, entered environment can not cause secondary pollution, and is of value to plant growth.
Crystallite bamboo charcoal is particle studded in boccaro matrix, and be combined with each other closely, combination and the reaction of chemical bond do not occur for crystallite bamboo charcoal and boccaro, and crystallite bamboo charcoal still keeps original gap structure, have the structure of class graphitization crystal.Crystallite bamboo charcoal purple sand ceramics has high-specific surface area, stronger adsorptivity and high far infrared transmissivity.
Microcrystal bamboo charcoal purple sand composite pottery material of the present invention possesses unique advantage, and namely new material can be releasing far infrared preferably, within the scope of 4 ~ 20 mum wavelengths, has higher normal direction far infrared emissivity, specifically more than 88%.In this wave-length coverage, far infrared has infiltrating vascular, stimulates each large acupuncture point of health, improves the function of human organ function.And there is huge absorption property (porosity 15% ~ 40%), can adsorb pernicious gas in air (foul smell, formaldehyde, TVOCs).
Another advantage that Microcrystal bamboo charcoal purple sand composite pottery material of the present invention possesses is: be a kind of environment-friendly material of environment affinity type, have porous and fragility, and after discarded, entered environment can not cause secondary pollution, and is of value to plant growth.
The boccaro raw material that the present invention adopts GB to define, in zisha earthenware, introduce the material that crystallite bamboo charcoal crystallite has superposition far infrared emission function simultaneously, by powder process, granulation, shaping, dry and rational sintering schedule, anaerobic system, obtains a kind of novel Microcrystal bamboo charcoal purple sand composite pottery material.This compound pottery material, physicochemical property meets completely the standard of traditional pottery material, simultaneously because crystallite bamboo charcoal boccaro can be releasing far infrared preferably, and have huge absorption property (porosity 15% ~ 40%), so this material is the new function environment-friendly material of a kind of health care, safe, practical, environmental protection.
Accompanying drawing explanation
Fig. 1 is the preparation flow figure of crystallite bamboo charcoal boccaro composite haydite filtrate of the present invention;
Fig. 2 is the preparation flow figure of crystallite bamboo charcoal boccaro compound pottery tea set of the present invention and rice cooker;
Fig. 3 is the preparation flow figure of crystallite bamboo charcoal boccaro composite honeycomb of the present invention or porous pottery;
Fig. 4 is the preparation flow figure of crystallite bamboo charcoal boccaro compound slab formula pottery of the present invention;
Fig. 5 is the preparation flow figure of crystallite bamboo charcoal boccaro compound pottery of the present invention opposite sex part.
Detailed description of the invention
Be described principle of the present invention and feature below in conjunction with accompanying drawing, example, only for explaining the present invention, is not intended to limit scope of the present invention.
Choose suitable clay mineral material and suitable binding agent:
Graphite crystallization bamboo charcoal: composition is simple, and main component is carbon (95%), is secondly that ash content (2 ~ 12%) calculates with mass fraction.Comprise the oxide of the metals such as Na, K, Si, Ca, Mn and a small amount of volatile matter.
Boccaro: chemical composition analysis is obtained a result as described in Table 1.
Table 1: the chemical composition (wt%) of raw material boccaro
Diatomite: analysis of physical and chemical property is obtained a result as described in Table 2.
Table 2: the diatomaceous chemical composition of raw material (wt%) and physical property
Attapulgite: chemical composition and mineral composition are as described in table 3 and table 4.
Table 3: the chemical composition (wt%) of raw material attapulgite (recessed soil)
| Component | Na 2O | Al 2O 3 | SiO 2 | K 2O | CaO | MnO 2 | TiO 2 | Fe 2O 3 | MgO | Loss on ignition |
| Recessed soil | 0.10 | 5.12 | 58.78 | 1.29 | 7.26 | 0.05 | 1.49 | 4.79 | 10.09 | 11.03 |
Table 4: the mineral composition (wt%) of raw material attapulgite
| Mineral composition | Attapulgite | Montmorillonite | Quartz | Calcite | Other clays |
| Recessed soil | 70～80 | 10～15 | 4～10 | 2～8 | 1～5 |
The binding agent that the present invention adopts, depending on its purposes, when namely preparing different components, the difference of moulding process, and determine.Honeycomb pottery and flat ceramic adopt extruded, so the starch selecting viscosity medium makees binding agent; Ceramic grain filter because be the granulation in comminutor that adds water, so the gum arabic selecting viscosity less; Shaped piece pottery adopts injection forming.
Embodiment 1: the preparation of crystallite bamboo charcoal boccaro composite haydite filtrate
The percentage by weight that raw material adopt is: crystallite bamboo charcoal 20 ~ 30%, boccaro raw material 40 ~ 55%, attapulgite 10 ~ 30%, diatomite 5 ~ 30% and binding agent 1 ~ 5%.
Mixing match in proportion, after mixer mixing, add water granulation in comminutor, forms the spheric granules of particle diameter 1 ~ 10mm, then spherolite is carried out drying, and put into sintering furnace anaerobic sintering subsequently, final sintering temperature 800 ~ 1150 DEG C, namely cooling obtains product.Preparation method's flow process is shown in Fig. 1, and main performance is in table 5.
Table 5: crystallite bamboo charcoal boccaro composite haydite media performance index
Embodiment 2: the preparation of crystallite bamboo charcoal boccaro compound pottery tea set and rice cooker
The percentage by weight that raw material adopt is: the crystallite bamboo charcoal of 10 ~ 20%, the boccaro of 40 ~ 60%, the attapulgite of 5 ~ 10%, the diatomite of 2 ~ 5%, the binding agent of 5%.
Crystallite bamboo charcoal, boccaro raw material, attapulgite, diatomite are pulverized, below 200 orders, mixing match in proportion, add water pugging, after old many days (pugging degree and old time determining depending on meeting condition of molding), base muddy water part evenly being associated, pug is added rotary press modelling in spinning machine; After shaping, first natural air drying, puts into sintering furnace anaerobic sintering, final sintering temperature 800 ~ 1150 DEG C subsequently, and finally cooling obtains product.Preparation method's flow process is shown in Fig. 2, and main performance index is in table 6.
Table 6: crystallite bamboo charcoal boccaro compound tea set pottery and rice cooker main performance
| Sequence number | Index | Tea set pottery of the present invention and rice cooker |
| 1 | Water absorption rate | ≤2% |
| 2 | The porosity | 2～15% |
| 3 | Mechanical strength (resistance to compression) | Mean value >=15.4MPa |
| 4 | Specific area | 1.8～3m 2/g |
| 5 | Thermal stability | Meet the demands |
| 6 | Corrosion resistance | Meet the demands |
| 7 | Wearability | ≤0.1g/cm 2 |
| 8 | Other performances | Releasing far infrared, Long-Time Service is to health |
Embodiment 3: the preparation of crystallite bamboo charcoal boccaro composite honeycomb or porous pottery
The percentage by weight that raw material adopt is: the crystallite bamboo charcoal of 20 ~ 30%, the boccaro of 30 ~ 45%, the attapulgite of 5 ~ 15%, the diatomite of about 5%, the binding agent of about 5%.
Crystallite bamboo charcoal, boccaro raw material, attapulgite, diatomite are pulverized, below 200 orders, mixing match in proportion, add water pugging, after old (pugging degree and old time determine depending on meeting condition of molding), added by pug in shaping grinding apparatus extruded; After shaping, natural air drying; Put into sintering furnace anaerobic sintering subsequently, final sintering temperature 800 ~ 1150 DEG C, finally cooling obtains product.Preparation method's flow process is shown in Fig. 3, and main performance index is in table 7.
Table 7: crystallite bamboo charcoal boccaro composite honeycomb or porous pottery performance indications
| Sequence number | Index | Honeycomb of the present invention or porous pottery |
| 1 | Ceramic hole density | 100 ~ 400 holes/in 2 |
| 2 | Wall thickness | 0.3～1.5mm |
| 3 | Specific area | 0.2～0.6m 2/g |
| 4 | Serviceability temperature | Room temperature ~ 1000 DEG C |
| 5 | Thermal coefficient of expansion | <15×10 -7/℃ |
| 6 | Far infrared emissivity | ≥88% |
| 7 | Axial compression strength | ≥8MPa |
| 8 | Refractoriness | ≥1580℃ |
| 9 | Water absorption rate | ≥25% |
Embodiment 4: the preparation of crystallite bamboo charcoal boccaro compound slab formula pottery
The percentage by weight that raw material adopt is: the crystallite bamboo charcoal of 30 ~ 35%, the boccaro of 30 ~ 50%, the attapulgite of 10 ~ 17%, the diatomite of 5 ~ 10%, the binding agent of about 5%.
By proportioning uniformly mixing raw material, add suitable quantity of water and make spraying material, moisture content range is 1 ~ 2%, and the granularity of described spraying material is 0.1 ~ 1mm.Granulation material is filled with in mould, through about 120MPa pressure forming, drier in the drying box of about 90 DEG C, carry out the decorative plate pottery that electronic engraving becomes different, finally carry out anaerobic sintering, final sintering temperature 800 ~ 1150 DEG C.Adsorbable formaldehyde in air, foul smell, TVOCs.Preparation method's flow process is shown in Fig. 4, and main performance index is in table 8.
Table 8: crystallite bamboo charcoal boccaro compound slab formula pottery main performance
| Sequence number | Index | The flat pottery of the present invention |
| 1 | Water absorption rate | ≥30% |
| 2 | Specific area | ≥2.5～5m 2/g |
| 3 | Mechanical strength (bending) | Mean value >=15.5MPa |
| 4 | Anti-freezing property | Meet the demands |
| 5 | Thermal stability | Meet the demands |
| 6 | Corrosion resistance | Meet the demands |
| 7 | Wearability | ≤0.5g/cm 2 |
| 8 | Other performances | Releasing far infrared |
Embodiment 5: the preparation of crystallite bamboo charcoal boccaro compound opposite sex part pottery
The percentage by weight that raw material adopt is: the crystallite bamboo charcoal of 20 ~ 40%, the boccaro of 30 ~ 40%, the attapulgite of 10 ~ 20%, the diatomite of 5 ~ 10%, the binding agent of about 5%.
By proportioning uniformly mixing raw material, add suitable water and make the mud with certain viscosity, the degree of thickening of mud is at 1.0 ~ 2.0g/cm
3(specifically with that degree of thickening depending on gypsum grinding tool, shaped piece mechanical property requirements), mud is injected specific gypsum mold, carries out injection forming.Natural air drying; Put into sintering furnace anaerobic sintering subsequently, final sintering temperature 800 ~ 1150 DEG C.Adsorbable formaldehyde in air, foul smell, TVOCs.Preparation method's flow process is shown in Fig. 5, and main performance index is in table 9.
Table 9: crystallite bamboo charcoal boccaro composite special-shaped piece pottery main performance
| Sequence number | Index | Shaped piece pottery of the present invention |
| 1 | Water absorption rate | ≥20% |
| 2 | Thermal coefficient of expansion | <15×10 -7/℃ |
| 3 | Compression strength | Mean value >=15MPa |
| 4 | Thermal shock resistance | Meet the demands |
| 5 | Thermal stability | Meet the demands |
| 6 | Corrosion resistance | Better |
| 7 | Wearability | ≤0.1g/cm 2 |
| 8 | Other performances | Releasing far infrared |
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a Microcrystal bamboo charcoal purple sand composite pottery material, is characterized in that, is mixed and forms: crystallite bamboo charcoal powder 5 ~ 40%, boccaro powder 40 ~ 60%, attapulgite 10 ~ 30%, diatomite 5 ~ 30% and binding agent 1 ~ 5% by the component of following percentage by weight; Wherein, described crystallite bamboo charcoal powder by graphite crystallization bamboo charcoal through more than 1200 DEG C high-temperature firings, obtain after carrying out fragmentation again, its particle diameter is less than 2000 orders, the average grain diameter of described boccaro powder is 300nm ~ 800nm, described boccaro powder after 800 ~ 1150 DEG C are fired at normal direction total radiation emissivity >=88% of far infrared wavelength 4 ~ 14 μm.
2. Microcrystal bamboo charcoal purple sand composite pottery material according to claim 1, is characterized in that, the attapulgite clay mineral that described attapulgite adopts attapulgite content to be not less than 78% is raw material, and obtain after fragmentation, its particle diameter is less than 200 orders.
3. Microcrystal bamboo charcoal purple sand composite pottery material according to claim 1, is characterized in that, described diatomite adopt SiO2 content 85% ~ 98% diatomite original ore be raw material, obtain after fragmentation, its average grain diameter is 1 ~ 100 μm.
4. Microcrystal bamboo charcoal purple sand composite pottery material according to claim 1, is characterized in that, described binding agent is for improving the plastic binding agent of blank.
5. the purposes of Microcrystal bamboo charcoal purple sand composite pottery material as described in any one of Claims 1-4, is characterized in that, described Microcrystal bamboo charcoal purple sand composite pottery material can be used for preparation crystallite bamboo charcoal boccaro compound pottery.
6. the purposes of Microcrystal bamboo charcoal purple sand composite pottery material according to claim 5, it is characterized in that, the concrete steps of described preparation crystallite bamboo charcoal boccaro compound pottery are: by Microcrystal bamboo charcoal purple sand composite pottery material after overmolding, air-dry, drying, put into vacuum drying oven, nitrogen furnace or hydrogen reducing furnace to calcine, be cooled to room temperature after calcining terminates, namely obtain crystallite bamboo charcoal boccaro compound pottery.
7. the purposes of Microcrystal bamboo charcoal purple sand composite pottery material according to claim 6, it is characterized in that, the concrete steps of described calcining are: be warming up to 400 DEG C of temperature when the programming rate of 100 DEG C/h and constant temperature 20min, 600 DEG C are warming up to again when the programming rate of 100 DEG C/h, 800 DEG C ~ 1150 DEG C are warming up to again, insulation 30min when the programming rate of 150 DEG C/h.
8. the purposes of Microcrystal bamboo charcoal purple sand composite pottery material according to any one of claim 5 to 7, it is characterized in that, the porosity of described crystallite bamboo charcoal boccaro compound pottery is 15% ~ 40%.
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| CN105622054A (en) * | 2014-10-29 | 2016-06-01 | 桂林新竹大自然生物材料有限公司 | Crystallite bamboo-charcoal diatomite ceramic product with high adsorption performance and preparation method thereof |
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| CN105565848A (en) * | 2015-12-31 | 2016-05-11 | 吴和平 | Active carbon red stoneware and production method thereof |
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| CN106866174A (en) * | 2017-02-28 | 2017-06-20 | 王于飞 | A kind of preparation method of bamboo charcoal dark-red enameled pottery |
| CN107352961A (en) * | 2017-08-15 | 2017-11-17 | 贵州大学 | A kind of environmentally friendly tea set |
| CN114774833B (en) * | 2022-03-28 | 2023-09-01 | 中电华创电力技术研究有限公司 | Preparation method of high-temperature chlorine corrosion resistant coating taking attapulgite clay as base material for incinerator |
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