CN104072193B - Based on silicon-aluminum containing solid waste foamed ceramic material and prepare the method for fireproof heated board - Google Patents
Based on silicon-aluminum containing solid waste foamed ceramic material and prepare the method for fireproof heated board Download PDFInfo
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Abstract
The invention discloses a kind of foamed ceramic material based on silicon-aluminum containing solid waste and prepare the method for fireproof heated board.Belong to inorganic heat insulation material field, this material each constitutive material formulation by weight is as follows: silicon-aluminum containing solid waste 71-95 part, calcic ore 3-15 part, fusing assistant 4-20 part, whipping agent 0.5-5 part.The method is by the mixture ball milling of silicon-aluminum containing solid waste, calcic ore, fusing assistant and whipping agent, granulation, then by pellet tiling with after high-temperature roasting for some time, cooling obtains foamed ceramic fireproof heat insulating board finished product.This foamed ceramic fireproof heat insulating panel products has the feature of the high and erosion resistance of light weight, fire prevention, good heat preservation performance, intensity, can be used for the occasion such as Building Fire Protection, insulation.
Description
Technical field
The invention belongs to inorganic heat insulation material field, relate generally to a kind of foamed ceramic material based on silicon-aluminum containing solid waste and prepare the method for fireproof heated board.
Background technology
Foamed ceramic material has that density is light, thermal conductivity is low, intensity is high, does not burn and erosion-resisting characteristic, along with building energy conservation and fire resistance require more and more higher, exterior insulation is used as the field such as Outer wall fireproof heat-insulation material and building firewall, and demand is increasing.
Current foamed ceramic mainly uses waste ceramic, natural crystal, industrial tailings, useless mud, industrial abandoned mine, quartz and clay to make for main raw material.But, due to the various of raw material and complicacy, cause the excessive 0.3-0.8Kg/m of product unit weight
3, add energy consumption and difficulty of construction.Select that a kind of storage is comparatively large, the raw material of stable components prepare the foam material that unit weight is lower and thermal conductivity is lower, reduce product energy consumption and there is important economy and technological value.
China's energy is based on coal, and in progress of coal mining, a large amount of coal gangue is not utilized effectively, and produces a large amount of environment and social concern.In coal separation and coal washing process, a large amount of coal slime is due to complicated component, the reason such as low and water content is large containing silt, thermal value, and it utilizes comparatively difficulty.Flyash discharges solid waste as power plant soot, and it discharges in a large number and causes serious environment and social concern.The principal feature of these solid waste is containing a large amount of sial chemical compositions and lower thermal value, use uneconomical as fuel, its sial is purified again comparatively difficulty, therefore, makes full use of silane agent in coal gangue, coal slime and flyash and thermal value becomes a urgent need to solve the problem.
Utilize the silicon-aluminum containing solid wastes such as coal gangue, coal slime and flyash to prepare foamed ceramic, not only can make full use of the heat output of coal gangue, reduce energy consumption, also can obtain high-performance exterior insulation product.Application number is that the Chinese patent of 200910195362.X discloses a kind of coal gangue and coal ash for manufacturing for solar heat reflecting and heat insulating thermal insulation foaming stupalith and manufacture method thereof, the consumption not high (the highest by about 50%) that the method coal gangue is total, foamed ceramic product unit weight is greater than 500Kg/m
3, thermal conductivity is greater than 0.09W/m*K, and performance has much room for improvement.Application number be 201210077885.2 Chinese patent disclose a kind ofly utilize flyash, Ninghai soil micro mist, glass powder, talcum powder and whipping agent prepare the method for exterior insulation, its utilization of fly ash rate is up to 70%, and product density is higher, reach 270-400Kg/m
3, tensile strength only has about 0.2MPa, and product performance are poor.
Summary of the invention
The object of the invention is the deficiency for overcoming prior art, a kind of foamed ceramic material based on silicon-aluminum containing solid waste is provided and prepares the method for fireproof heated board, its Raw silicon-aluminum containing solid waste content is high, and the foamed ceramic bill of material face made is less, unit weight is comparatively light, thermal conductivity is low.
For achieving the above object, the present invention is by the following technical solutions:
A kind of foamed ceramic material based on silicon-aluminum containing solid waste, it is characterized in that, this material is primarily of silicon-aluminum containing solid waste, calcic ore, fusing assistant and whipping agent is baking mixed forms, each constitutive material weight percent formula is as follows: silicon-aluminum containing solid waste 71-95 part, calcic ore 3-15 part, fusing assistant 4-20 part, whipping agent 0.5-5 part.
In such scheme, silicon-aluminum containing solid waste refers to any one in coal gangue, flyash or coal slime, and in silicon-aluminum containing solid waste, silica content is 40-80%, and alumina content is 10-30%, other 5-30%.
In such scheme, calcic ore refers to any one in Wingdale, calcite, the tremolite, rhombspar or potter's clay.
In such scheme, fusing assistant refers to any one in albite, wagnerite, aeolian sand or SILICA FUME.
In such scheme, whipping agent refers to any one in ferric oxide, iron mud or iron oxide red.
Adopt described foamed ceramic material to prepare a method for fireproof heated board, it is characterized in that, comprise the following steps:
1) silicon-aluminum containing solid waste, calcic ore, fusing assistant and each raw material of whipping agent are first crushed to below 50mm with crusher respectively, then pulverize with pulverizer, and sieve through 10-200 order;
2) by the silicon-aluminum containing solid waste of the 71-95 part after sieving, the calcic ore of 3-15 part, the fusing assistant of 4-20 part, the whipping agent Homogeneous phase mixing of 0.5-5 part;
3) by step 2) gained mixture employing wet ball grinding is to slip, and slip is spray-dried or/and 1-5mm pellet made by tablets press;
4) by step 3) gained pellet evenly paves in high temperature grinding tool, and then in the kiln of high temperature 1000-1300 DEG C after roasting 60-120 minute, cooling obtains foamed ceramic fireproof heat insulating board finished product.
Compared to existing technologies, the present invention has the following advantages:
(1) in the composition of raw materials selected of the present invention, silicon-aluminum containing solid waste content, comparatively up to 71-95%, can make full use of the silane agent of silicon-aluminum containing solid waste, forms inorganic ceramic body material, reduces the use of high value silicon and aluminum source.
(2) the present invention selects silicon-aluminum containing solid waste raw material to have certain thermal value, the heat that its inner carbon component high-temp combustion produces can be made full use of, save product energy consumption, the gas that oxidation of coal produces can be utilized again, form uniform pore, reduce product unit weight and thermal conductivity.
(3) the present invention foamed ceramic material surface more than 80% hole of preparing between 1-3 mm, and product is based on cordierite crystalline phase, and mullite crystalline phase is few, and product performance are given prominence to, and product unit weight is less than 160Kg/m
3; Thermal conductivity is less than 0.08W/m*K.
Embodiment
Below by specific embodiment, a kind of method utilizing silicon-aluminum containing solid waste to prepare foamed ceramic fireproof heated board for main raw material of the present invention is described in further detail.
Embodiment 1
Foamed ceramic material in the present embodiment is coal slime 71 parts, 8 parts, calcite, wagnerite 20 parts, and iron oxide red 1 part mixes.Prepare the method for fireproof heated board with above-mentioned raw materials, comprising:
Silicon-aluminum containing solid waste, calcic sandstone, fusing assistant and whipping agent are first crushed to below 50mm with crusher respectively, then pulverize with pulverizer, and sieve through 10-200 order, get the following material of 10-200 order and use for sample.Choose the following coal slime of weight ratio formula 71 parts, 8 parts, calcite, wagnerite 20 parts, iron oxide red 1 part is as raw material, and wherein coal slime silicon oxide-containing is 65%, aluminum oxide 10%, and other are 25% years old.By even for the mixing of materials chosen, by mixture wet ball grinding to slip, filter with 100 eye mesh screens, after filtering, slip is spray-dried or/and 1-5mm particle made by tablets press; Evenly paved in high temperature grinding tool by plastochondria, then in the kiln of high temperature 1200 DEG C, roasting is after 90 minutes, and cooling obtains foamed ceramic fireproof heat insulating board finished product.Testing product unit weight is 145Kg/m
3, thermal conductivity is 0.065W/m*K.
Embodiment 2
Foamed ceramic material in the present embodiment is coal gangue 75 parts, rhombspar 15 parts, aeolian sand 5 parts, and ferric oxide 5 parts mixes.Prepare the method for fireproof heated board with above-mentioned raw materials, comprising:
Silicon-aluminum containing solid waste, calcic sandstone, fusing assistant and whipping agent are first crushed to below 50mm with crusher respectively, then pulverize with pulverizer, and sieve through 10-200 order, get the following material of 10-200 order and use for sample.Choose weight ratio formula as follows, containing coal gangue 75 parts, rhombspar 15 parts, aeolian sand 5 parts, ferric oxide 5 parts is as raw material, and wherein coal gangue silicon oxide-containing is 80%, aluminum oxide 15%, and other are 5% years old.By even for the mixing of materials chosen, by mixture wet ball grinding to slip, filter with 100 eye mesh screens, after filtering, slip is spray-dried or/and 1-5mm particle made by tablets press; Evenly paved in high temperature grinding tool by plastochondria, then in the kiln of high temperature 1300 DEG C, roasting is after 60 minutes, and cooling obtains foamed ceramic fireproof heat insulating board finished product.Testing product unit weight is 124Kg/m
3, thermal conductivity is less than 0.051W/m*K.
Embodiment 3
Foamed ceramic material in the present embodiment is coal gangue 95 parts, 2 parts, Wingdale, albite 2.5 parts, and 0.5 part, iron mud mixes.Prepare the method for fireproof heated board with above-mentioned raw materials, comprising:
Silicon-aluminum containing solid waste, calcic sandstone, fusing assistant and whipping agent are first crushed to below 50mm with crusher respectively, then pulverize with pulverizer, and sieve through 10-200 order, get the following material of 10-200 order and use for sample.Choose weight ratio formula as follows, coal gangue 95 parts, 2 parts, Wingdale, albite 2.5 parts, 0.5 part, iron mud is as raw material, and wherein coal gangue silicon oxide-containing is 55%, aluminum oxide 20%, and other are 25% years old.By even for the mixing of materials chosen, by mixture wet ball grinding to slip, filter with 100 eye mesh screens, after filtering, slip is spray-dried or/and 1-5mm particle made by tablets press; Evenly paved in high temperature grinding tool by plastochondria, then in the kiln of high temperature 1000 DEG C, roasting is after 120 minutes, and cooling obtains foamed ceramic fireproof heat insulating board finished product.Testing product unit weight is 153Kg/m
3, thermal conductivity is less than 0.072W/m*K.
Embodiment 4
Foamed ceramic material in the present embodiment is 74 parts, flyash, the tremolite 9 parts, SILICA FUME 15 parts, and iron oxide red 2 parts mixes.Prepare the method for fireproof heated board with above-mentioned raw materials, comprising:
Silicon-aluminum containing solid waste, calcic sandstone, fusing assistant and whipping agent are first crushed to below 50mm with crusher respectively, then pulverize with pulverizer, and sieve through 10-200 order, get the following material of 10-200 order and use for sample.Choose 74 parts, the following flyash of weight ratio formula, the tremolite 9 parts, SILICA FUME 15 parts, iron oxide red 2 parts is as raw material, and wherein flyash silicon oxide-containing is 40%, aluminum oxide 30%, and other are 30% years old.By even for the mixing of materials chosen, by mixture wet ball grinding to slip, filter with 100 eye mesh screens, after filtering, slip is spray-dried or/and 1-5mm particle made by tablets press; Evenly paved in high temperature grinding tool by plastochondria, then in the kiln of high temperature 1250 DEG C, roasting is after 80 minutes, and cooling obtains foamed ceramic fireproof heat insulating board finished product.Testing product unit weight is 150Kg/m
3, thermal conductivity is 0.069W/m*K.
Embodiment 5
Foamed ceramic material in the present embodiment is 85 parts, flyash, 4 parts, potter's clay, wagnerite 6 parts, and 5 parts, iron mud mixes.Prepare the method for fireproof heated board with above-mentioned raw materials, comprising:
Silicon-aluminum containing solid waste, calcic sandstone, fusing assistant and whipping agent are first crushed to below 50mm with crusher respectively, then pulverize with pulverizer, and sieve through 10-200 order, get the following material of 10-200 order and use for sample.Choose 85 parts, the following flyash of weight ratio formula, 4 parts, potter's clay, wagnerite 6 parts, 5 parts, iron mud is as raw material, and wherein coal slime silicon oxide-containing is 50%, aluminum oxide 25%, and other are 25% years old.By even for the mixing of materials chosen, by mixture wet ball grinding to slip, filter with 100 eye mesh screens, after filtering, slip is spray-dried or/and 1-5mm particle made by tablets press; Evenly paved in high temperature grinding tool by plastochondria, then in the kiln of high temperature 1180 DEG C, roasting is after 100 minutes, and cooling obtains foamed ceramic fireproof heat insulating board finished product.Testing product unit weight is 159Kg/m
3, thermal conductivity is 0.078W/m*K.
Above-mentionedly only several specific embodiments in the present invention to be illustrated, but can not as protection scope of the present invention, every equivalence change of making according to the design spirit in the present invention or modify, all should to think and fall into protection scope of the present invention.
Claims (2)
1. the foamed ceramic material based on silicon-aluminum containing solid waste, it is characterized in that, this material mixes primarily of silicon-aluminum containing solid waste, calcic ore, fusing assistant and whipping agent, each constitutive material formulation by weight is as follows: silicon-aluminum containing solid waste 71-95 part, calcic ore 3-15 part, fusing assistant 4-20 part, whipping agent 0.5-5 part;
Described silicon-aluminum containing solid waste refers to any one in coal gangue, flyash or coal slime, and in silicon-aluminum containing solid waste, silica content is 40-80%, and alumina content is 10-30%, and other are 5-30%;
Described calcic ore refers to any one in Wingdale, calcite, the tremolite, rhombspar or potter's clay;
Described fusing assistant refers to any one in albite, wagnerite, aeolian sand or SILICA FUME.
Described whipping agent refers to any one in ferric oxide, iron mud or iron oxide red.
2. adopt foamed ceramic material described in claim 1 to prepare a method for fireproof heated board, it is characterized in that, comprise the following steps:
1) silicon-aluminum containing solid waste, calcic ore, fusing assistant and each raw material of whipping agent are first crushed to below 50mm with crusher respectively, then pulverize with pulverizer, and sieve through 10-200 order;
2) by the silicon-aluminum containing solid waste of the 71-95 part after sieving, the calcic ore of 3-15 part, the fusing assistant of 4-20 part, the whipping agent Homogeneous phase mixing of 0.5-5 part;
3) by step 2) gained mixture employing wet ball grinding is to slip, and slip is spray-dried or/and 1-5mm pellet made by tablets press;
4) by step 3) gained pellet evenly paves in high temperature grinding tool, and then in the kiln of high temperature 1000-1300 DEG C after roasting 60-120 minute, cooling obtains foamed ceramic fireproof heat insulating board finished product;
Obtained foamed ceramic fireproof heated board density is less than 160Kg/m
3, thermal conductivity is less than 0.08W/ (m*K).
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| CN104557120A (en) * | 2015-01-12 | 2015-04-29 | 甘肃万特科技发展有限公司 | Method for preparing foamed ceramic |
| CN105272338A (en) * | 2015-10-12 | 2016-01-27 | 鄂尔多斯市紫荆创新研究院 | Method for preparing high-strength foaming ceramic material by utilizing fly ash and desert sand |
| CN105272342B (en) * | 2015-11-12 | 2019-12-03 | 铜仁学院 | Foamed ceramic heat insulating board and preparation method thereof |
| CN106083000A (en) * | 2016-06-20 | 2016-11-09 | 湖南省众精细陶瓷制造有限公司 | A kind of recycling technique of aluminium oxide ceramics waste product |
| CN108439948A (en) * | 2018-06-05 | 2018-08-24 | 唐林元 | A kind of preparation method of porous ceramics thermal insulation board |
| CN111187094B (en) * | 2020-01-13 | 2022-05-31 | 山东晟世达科技有限公司 | Lithium-containing foamed ceramic, composite board using foamed ceramic and preparation method of composite board |
| CN111499347A (en) * | 2020-04-07 | 2020-08-07 | 惠州市彩玉微晶新材有限公司 | Foamed ceramic manufacturing process |
| CN111875395B (en) * | 2020-07-07 | 2022-07-01 | 佛山市德力泰科技有限公司 | Energy-saving light foamed ceramic whole body refractory material, energy-saving light foamed ceramic whole body refractory plate and application thereof |
| CN112358316A (en) * | 2020-11-13 | 2021-02-12 | 萍乡市创优环保工程有限公司 | Degradable wind-shielding sand-fixing sponge ring and preparation method thereof |
| CN112940783B (en) * | 2021-01-26 | 2022-07-01 | 长治市碳谷科技孵化器有限公司 | Comprehensive utilization system and method of coal gangue |
| CN116102357A (en) * | 2022-12-23 | 2023-05-12 | 常熟理工学院 | Method for preparing foamed ceramic by comprehensively utilizing solid waste |
| CN116444291A (en) * | 2023-04-23 | 2023-07-18 | 西安交通大学 | Method for preparing high-strength porous complex phase ceramic from coal slime |
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Application publication date: 20141001 Assignee: Liuzhou Zijing Ecological Engineering Technology Co., Ltd. Assignor: Ordos City of Chinese Redbud Innovation Institute Contract record no.: 2017450000049 Denomination of invention: Foamed ceramic material based on silicon-aluminum-containing solid waste and method for preparing fireproof thermal insulation board Granted publication date: 20151209 License type: Common License Record date: 20171212 |