CN1285335A - Process for preparation of foam ceramic spherulite - Google Patents
Process for preparation of foam ceramic spherulite Download PDFInfo
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- CN1285335A CN1285335A CN 00124697 CN00124697A CN1285335A CN 1285335 A CN1285335 A CN 1285335A CN 00124697 CN00124697 CN 00124697 CN 00124697 A CN00124697 A CN 00124697A CN 1285335 A CN1285335 A CN 1285335A
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Abstract
本发明涉及一种多孔陶瓷的制备方法。这种方法是以玻璃废渣、粉煤灰、膨润土等熔融温度不同的物料及成孔剂、粘结剂为主要原料,通过配料、旋转造粒、干燥、煅烧、自磨等步骤制成的。采用这种方法制备的陶瓷球粒,质轻多孔,表面气孔封闭独立,即能有效地阻挡液体中的悬浮物,也可经反洗后反复使用。可用于水处理、化工、环境保护、食品饮料、建筑节能、生物化学等领域的过滤介质。该方法充分利用工业固体废弃物,原料来源广泛,工艺流程简便、生产成本低,易于实施推广。The invention relates to a preparation method of porous ceramics. This method uses glass waste, fly ash, bentonite and other materials with different melting temperatures, as well as pore-forming agents and binders as the main raw materials, and is made through steps such as batching, rotary granulation, drying, calcination, and self-grinding. The ceramic spheres prepared by this method are light and porous, and the pores on the surface are closed and independent, which can effectively block the suspended matter in the liquid and can be used repeatedly after backwashing. It can be used as filter media in water treatment, chemical industry, environmental protection, food and beverage, building energy saving, biochemistry and other fields. The method makes full use of industrial solid waste, has wide sources of raw materials, simple process flow, low production cost, and is easy to implement and popularize.
Description
The present invention relates to a kind of preparation method of porous ceramics.
Foam ceramic spherulite is meant that profile is spherical, and inside is vesicular structure, but pore distributes arbitrarily at three-dimensional space, arranges a direction-free class porous ceramics.It has premium propertiess such as high temperature resistant, corrosion-resistant, good thermal shock, even aperture distribution, long service life, is used widely in many fields such as Metal smelting, chemical industry, water treatment, environment protection, food-drink, building energy conservation, biological chemistry, electronic industries.
The formation method of the microvoid structure of foamed ceramics has multiple, main method to have at present: (1) natural forming method: utilize the pore of starting material itself or the burning of starting material in sintering process to lose the formation vesicular structure; (2) particle packing method: with base-material self pile up to produce the nature pore, and adjust the size of void content with the grain composition of raw material, this method can make void content and reach 75% foamed ceramics; (3) mechanical mixing method: when the viscosity of ceramic mud acquires a certain degree, stir, make it to produce foam, solidify after sintering is made foamed ceramics by mechanical forced; (4) burn the thing method: in ceramic material, add combustibleconstituentss such as sawdust, pitch, heat and combustiblematerials is burnt and volatilize, form vesicular structure; (5) water volatilization method: in ceramic body heat-processed, owing to moisture evaporation forms vesicular structure; (6) etch: by chemical corrosion, remove the part thing phase in the ceramic body, and then form vesicular structure; (7) precursor process: the presoma that will prepare in advance immerses in the ceramic size, slurry is fully soaked into and evenly is attached on the twine of presoma, and drying is fired and formed; (8) sol-gel method: utilize the accumulation of colloidal particle in the colloidal gel process and heat treatment process and form vesicular structure, can be used for preparing the fine-celled foam pottery.But the prepared foam ceramic spherulite of present existing foamed ceramics technology of preparing; Its surface irregularity contains a large amount of open pores and connects pore, as filtration medium to water, when wet goods liquid filters,, and cause the foamed ceramics ball can not be rinsed clean and regeneration often because of surface porosity absorption suspended substance influences filter effect.
The object of the present invention is to provide a kind of preparation method of foam ceramic spherulite.This ceramic spherolite light weight porous, there is certain rugosity on the surface, but pore seals independence mutually, can be used as filtration medium, and can after back flushing, use repeatedly.
The present invention realizes by following manner.
The preparation method of this foam ceramic spherulite is to be main raw material, and to adopt following step to carry out with the different two kinds of materials of melt temperature and pore former, binding agent:
(1) batching step: with sheet glass waste residue, fly ash in electric power plant, bentonite ore be crushed to respectively granularity less than 60 μ m after, cooperate by one of following prescription (by mass percentage), stir and to make it to mix, make ceramic material:
Prescription one: the glass cullet powder is less than 60 μ m 60-75%
The fine coal ashes is less than 60 μ m 10-20%
Carbon black is less than 40 μ m 0.1-0.6%
Cmc soln 10-15%
Prescription two: the glass cullet powder is less than 60 μ m 60-75%
Bentonite in powder is less than 60 μ m 10-17%
The light calcium carbonate powder is less than 50 μ m 1-2%
Cmc soln 10-15%
(2) granulation step: described ceramic material is sieved with the 80-150 mesh standard sieve, get the following pug of sieve as the nucleation pug, place in the mixing and blending machine, and be that 1: 1 ratio adds wilkinite micro mist (granularity is less than 10-15 μ m) in ratio of quality and the number of copies, stir while rotating, make the particle surface of nucleation pug evenly adhere to one deck wilkinite micro mist, make mud ball;
(3) drying step: described mud ball was dried 2 hours in 100 ℃;
(4) calcining step: dried mud ball is placed in the high temperature kiln, be heated to 880 ℃ of calcinings 20-30 minute, naturally cooling;
(5) grinding steps: the mud ball after will calcining places in the autogenous mill, adds an amount of tap water and grinds, and removes the unsintered bentonite in powder of pellet surface, is foam ceramic spherulite of the present invention.
The micro mist that wilkinite micro mist of the present invention also can adopt melt temperatures such as flyash, wollastonite micro mist to be higher than 900 ℃ substitutes.
Among the present invention, from the preparation of raw material, prepare burden, mix, burn till each steps such as grinding and all adopt general-purpose equipment to carry out.
Further describe the present invention with embodiment below.
Embodiment 1
With sheet glass waste residue, flyash and wilkinite is main raw material, is pore former with the carbon black, is binding agent with the cmc soln, is undertaken by following step:
(1) batching step: with sheet glass waste residue, fly ash in electric power plant, bentonite ore be crushed to respectively granularity less than 60 μ m after, cooperate by following mass percent, stir and to make it to mix, make ceramic material:
The glass cullet powder is less than 60 μ m 65%
The fine coal ashes is less than 60 μ m 19.7%
Carbon black is less than 40 μ m 0.3%
Cmc soln 15%
(2) granulation step: described ceramic material is sieved with 100 mesh standard sieves, get the following pug of sieve as the nucleation pug, place in the mixing and blending machine, and be that 1: 1 ratio adds wilkinite micro mist (granularity is less than 15 μ m) in ratio of quality and the number of copies, stir while rotating, make the particle surface of nucleation pug evenly adhere to one deck wilkinite micro mist, make mud ball;
(3) drying step: described mud ball was dried 2 hours in 100 ℃;
(4) calcining step: dried mud ball is placed in the high temperature kiln, be heated to 880 ℃ of calcinings 25 minutes, naturally cooling;
(5) grinding steps: the mud ball after will calcining places in the autogenous mill, adds an amount of tap water and grinds, and removes the unsintered bentonite in powder of pellet surface, is foam ceramic spherulite of the present invention.
Embodiment 2
Bentonite in powder and the melt temperature relatively low sheet glass waste residue higher relatively with melt temperature are main raw material, are pore former with the light calcium carbonate, are binding agent with the carboxymethyl cellulose, are undertaken by following step:
(1) batching step: with the sheet glass waste residue, bentonite ore be crushed to respectively granularity less than 60 μ m after, cooperate by following mass percent, stir and to make it to mix, make ceramic material:
The glass cullet powder is less than 60 μ m 70%
Bentonite in powder is less than 60 μ m 13.3%
The light calcium carbonate powder is less than 50 μ m 1.7%
Cmc soln 15%
(2) granulation step: described ceramic material is sieved with 80 mesh standard sieves, get the following pug of sieve as the nucleation pug, place in the mixing and blending machine, and be that 1: 1 ratio adds wollastonite micro mist (granularity is less than 10 μ m) in ratio of quality and the number of copies, stir while rotating, make the particle surface of nucleation pug evenly adhere to one deck wollastonite micro mist.Make mud ball;
(3) drying step: described mud ball was dried 2 hours in 100 ℃;
(4) calcining step: dried mud ball is placed in the high temperature kiln, be heated to 870 ℃ of calcinings 30 minutes, naturally cooling;
(5) grinding steps: the mud ball after will calcining places in the autogenous mill, adds an amount of tap water and grinds, and removes the unsintered wollastonite powder of pellet surface, is foam ceramic spherulite of the present invention.
By the foam ceramic spherulite that above-mentioned embodiment makes, light weight porous, tap density are 0.45-0.55g/cm
3Because of particle vitreous degree height, its profile is closely spherical, and there is certain roughness on the surface, but the pore sealing, the aperture is usually less than 0.5mm.Through the water filtration test, can stop the suspended substance in the water body effectively, and can after backwash, use repeatedly.
The invention provides a kind of preparation method of foamed ceramics.This method has made full use of industrial solid castoff, and raw material sources are extensive, and technical process is easy, production cost is low, and is easy to implement to promote.Products therefrom can be used for the filtration medium in fields such as water treatment, chemical industry, environment protection, food-drink, building energy conservation, biological chemistry.
Claims (2)
1, a kind of preparation method of foam ceramic spherulite is characterized in that: the preparation of this foam ceramic spherulite adopts following step to carry out:
(1) batching step: with sheet glass waste residue, fly ash in electric power plant, bentonite ore be crushed to respectively granularity less than 60 μ m after, cooperate by one of following prescription (by mass percentage), stir and to make it to mix, make ceramic material:
Prescription one: the glass cullet powder is less than 60 μ m 60-75%
The fine coal ashes is less than 60 μ m 10-20%
Carbon black is less than 40 μ m 0.1-0.6%
Cmc soln 10-15%
Prescription two: the glass cullet powder is less than 60 μ m 60-75%
Bentonite in powder is less than 60 μ m 10-17%
The light calcium carbonate powder is less than 50 μ m 1-2%
Cmc soln 10-15%
(2) granulation step: described ceramic material is sieved with the 80-150 mesh standard sieve, get the following pug of sieve as the nucleation pug, place in the mixing and blending machine, and be that 1: 1 ratio adds wilkinite micro mist (granularity is less than 10-15 μ m) in ratio of quality and the number of copies, stir while rotating, make the particle surface of nucleation pug evenly adhere to one deck wilkinite micro mist, make mud ball;
(3) drying step: described mud ball was dried 2 hours in 100 ℃;
(4) calcining step: dried mud ball is placed in the high temperature kiln, be heated to 880 ℃ of calcinings 20-30 minute, naturally cooling;
(5) grinding steps: the mud ball after will calcining places in the autogenous mill, adds an amount of tap water and grinds, and removes the unsintered bentonite in powder of pellet surface, is foam ceramic spherulite of the present invention.
2, the preparation method of foam ceramic spherulite according to claim 1 is characterized in that: the micro mist that described wilkinite micro mist also can adopt melt temperatures such as flyash, wollastonite micro mist to be higher than 900 ℃ substitutes.
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| CN 00124697 CN1285335A (en) | 2000-09-29 | 2000-09-29 | Process for preparation of foam ceramic spherulite |
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| CN 00124697 CN1285335A (en) | 2000-09-29 | 2000-09-29 | Process for preparation of foam ceramic spherulite |
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Cited By (23)
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| CN1299797C (en) * | 2004-12-31 | 2007-02-14 | 华南理工大学 | Porous inorganic microstraining core and preparation method thereof |
| CN100336779C (en) * | 2004-12-06 | 2007-09-12 | 淄博博纳科技发展有限公司 | Microporous ceramic ball for comprehensive control of plant growth and its prepn process |
| CN100374395C (en) * | 2005-11-29 | 2008-03-12 | 玄永辉 | Process for preparing porous foam ceramic |
| CN101774684A (en) * | 2010-03-23 | 2010-07-14 | 南京工业大学 | Filter material for water treatment and preparation method and application thereof |
| CN101239838B (en) * | 2007-02-05 | 2011-05-04 | 山东理工大学 | Method for preparing coal ash ceramic water washing ball |
| CN101348383B (en) * | 2008-04-22 | 2011-05-18 | 商士强 | Ceramic particle for water treatment and preparation thereof |
| CN101580349B (en) * | 2009-06-29 | 2011-06-22 | 浙江大学 | Carbon-containing ceramsite and its preparation method |
| CN101550011B (en) * | 2009-05-25 | 2011-10-05 | 天津城市建设学院 | A kind of preparation method of SiC/Mullite composite sphere |
| CN102350490A (en) * | 2011-09-07 | 2012-02-15 | 南昌大学 | Method for preparing low-cost, environment-friendly and abrasion-resistant bicontinuous phase compound material |
| CN101239841B (en) * | 2007-02-05 | 2012-03-28 | 山东理工大学 | Preparation method of ceramic washing ball |
| CN102858423A (en) * | 2010-04-08 | 2013-01-02 | 普拉菲尔有限公司 | Filtration media having recycled waste materials |
| CN103382117A (en) * | 2013-06-25 | 2013-11-06 | 蚌埠凤凰滤清器有限责任公司 | Structural filter core for removal of benzene in drinking water and preparation method thereof |
| CN103910389A (en) * | 2014-03-20 | 2014-07-09 | 苏州腾纳环保科技有限公司 | Method for producing sterilization-deodorizing type water purification filter material |
| US9376344B2 (en) | 2006-02-17 | 2016-06-28 | Earthstone International, Llc | Foamed glass ceramic composite materials and a method for producing the same |
| US9382671B2 (en) | 2006-02-17 | 2016-07-05 | Andrew Ungerleider | Foamed glass composite material and a method for using the same |
| CN107382275A (en) * | 2017-07-11 | 2017-11-24 | 湖北省当阳豪山建材有限公司 | Utilize the fired brick and its preparation technology of the production of Ceramic Tiles waste residue |
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| CN100336779C (en) * | 2004-12-06 | 2007-09-12 | 淄博博纳科技发展有限公司 | Microporous ceramic ball for comprehensive control of plant growth and its prepn process |
| CN1299797C (en) * | 2004-12-31 | 2007-02-14 | 华南理工大学 | Porous inorganic microstraining core and preparation method thereof |
| CN100374395C (en) * | 2005-11-29 | 2008-03-12 | 玄永辉 | Process for preparing porous foam ceramic |
| US12043413B2 (en) | 2006-02-17 | 2024-07-23 | Earthstone International Llc | Foamed glass composite material |
| US9376344B2 (en) | 2006-02-17 | 2016-06-28 | Earthstone International, Llc | Foamed glass ceramic composite materials and a method for producing the same |
| US12071259B2 (en) | 2006-02-17 | 2024-08-27 | Earthstone International Llc | Foamed glass composite material and a method using the same |
| US11970288B2 (en) | 2006-02-17 | 2024-04-30 | Earthstone International Llc | Method for slowing an aircraft using a foamed glass composite runway |
| US11858657B2 (en) | 2006-02-17 | 2024-01-02 | Earthstone International Llc | Foamed glass composite material and a method for producing the same |
| US10435177B2 (en) | 2006-02-17 | 2019-10-08 | Earthstone International Llc | Foamed glass composite arrestor beds having predetermined failure modes |
| US9382671B2 (en) | 2006-02-17 | 2016-07-05 | Andrew Ungerleider | Foamed glass composite material and a method for using the same |
| CN101239838B (en) * | 2007-02-05 | 2011-05-04 | 山东理工大学 | Method for preparing coal ash ceramic water washing ball |
| CN101239841B (en) * | 2007-02-05 | 2012-03-28 | 山东理工大学 | Preparation method of ceramic washing ball |
| CN101348383B (en) * | 2008-04-22 | 2011-05-18 | 商士强 | Ceramic particle for water treatment and preparation thereof |
| CN101550011B (en) * | 2009-05-25 | 2011-10-05 | 天津城市建设学院 | A kind of preparation method of SiC/Mullite composite sphere |
| CN101580349B (en) * | 2009-06-29 | 2011-06-22 | 浙江大学 | Carbon-containing ceramsite and its preparation method |
| CN101774684A (en) * | 2010-03-23 | 2010-07-14 | 南京工业大学 | Filter material for water treatment and preparation method and application thereof |
| CN102858423A (en) * | 2010-04-08 | 2013-01-02 | 普拉菲尔有限公司 | Filtration media having recycled waste materials |
| CN102350490A (en) * | 2011-09-07 | 2012-02-15 | 南昌大学 | Method for preparing low-cost, environment-friendly and abrasion-resistant bicontinuous phase compound material |
| CN103382117A (en) * | 2013-06-25 | 2013-11-06 | 蚌埠凤凰滤清器有限责任公司 | Structural filter core for removal of benzene in drinking water and preparation method thereof |
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| US12065264B2 (en) | 2014-06-11 | 2024-08-20 | Earthstone International Llc | Method for using a foamed glass composite material |
| CN107382275A (en) * | 2017-07-11 | 2017-11-24 | 湖北省当阳豪山建材有限公司 | Utilize the fired brick and its preparation technology of the production of Ceramic Tiles waste residue |
| CN107382275B (en) * | 2017-07-11 | 2021-05-18 | 湖北省当阳豪山建材有限公司 | Sintered brick produced by using ceramic brick waste residue and preparation process thereof |
| CN109020405B (en) * | 2018-09-28 | 2021-09-21 | 武汉源锦商品混凝土有限公司 | High-performance concrete with excellent impermeability and preparation method thereof |
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| CN110183242A (en) * | 2019-05-28 | 2019-08-30 | 昌鑫生态科技(陕西)有限公司 | Industrial Solid Waste processes high-performance foam ceramic material production technology |
| CN114685144A (en) * | 2020-12-31 | 2022-07-01 | 沙庆中 | Calcining material for preparing ceramic tile, preparation method of calcining material and ceramic tile |
| CN112745133A (en) * | 2020-12-31 | 2021-05-04 | 河南强耐新材股份有限公司 | Fly ash-based high-strength ceramsite and preparation method thereof |
| CN114212757A (en) * | 2021-12-24 | 2022-03-22 | 昆山市年沙助剂有限公司 | Production process of reagent-grade chemical auxiliary |
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