CN102515661B - Inorganically combined ceramic fiber board - Google Patents
Inorganically combined ceramic fiber board Download PDFInfo
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- CN102515661B CN102515661B CN 201110394379 CN201110394379A CN102515661B CN 102515661 B CN102515661 B CN 102515661B CN 201110394379 CN201110394379 CN 201110394379 CN 201110394379 A CN201110394379 A CN 201110394379A CN 102515661 B CN102515661 B CN 102515661B
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Abstract
The invention belongs to the technical field of ceramic fiber materials, and particularly relates to an inorganically combined ceramic fiber board. The inorganically combined ceramic fiber board is characterized by comprising the following raw materials in parts by weight: 50-70 parts of ceramic fiber, 600-1000 parts of activated calcium silicate slurry, 0.4-0.8 parts of filter aid and 950-2500 parts of water. Compared with the traditional microporous calcium silicate board, the inorganically combined ceramic fiber board has the advantages that the usage temperature and the toughness of the product are also greatly improved, the product does not contain organic toxic volatile substances such as formaldehyde and the like, belongs to pure inorganic materials and is green and friendly to the environment, no polluting air volatilizes during usage under high temperature, and the quality of living and working environments are improved.
Description
Technical field
The invention belongs to the ceramic fiber material technical field, be specifically related to a kind of inorganic in conjunction with ceramic beaverboard.
Background technology
Traditional ceramic beaverboard all needs to add organic bonds such as a spot of starch in process of production, makes ceramic beaverboard have certain intensity.The advantage of organic bond is strong adhesion and cohesive strength height, but organic bond at 300-800 ℃ carbonization can take place, thereby produces thick smoke, and has irritating smell.Along with further exploitation such as ceramic kiln, household electric appliances, the ceramic beaverboard that does not contain any organic bond is more wished to use in these fields, does not fire to satisfy in its use, the particular requirement of smoke-free and tasteless.
Summary of the invention
The purpose of this invention is to provide a kind of inorganicly in conjunction with ceramic beaverboard, adopt inorganic bonding agent to replace organic bond, thus under worst hot case pollution-free gaseous volatilization, satisfy in use do not fire, the particular requirement of smoke-free and tasteless.
Of the present invention a kind of inorganic in conjunction with ceramic beaverboard, made by the raw material of following parts by weight:
Wherein, employed ceramic fiber can be the standard type aluminum silicate fiber, and this fiber is to be main raw material(s) with Coaseries kaolin grog (being commonly called as coal gangue), adopts the resistance furnace fusion to get rid of a thread fiber-forming process preparation through centrifugal.Also can be high-purity type aluminum silicate fiber or high alumina type aluminum silicate fiber, these two kinds of fibers all be that the synthetic material of forming with high temperature oxidation aluminium powder and silica powder is main raw material(s), adopt the resistance furnace fusion through getting rid of silk or the preparation of winding-up fiber-forming process.
Described flocculating aids is preferably polymerize aluminum chloride or Tai-Ace S 150.
Solid masses content in the described active silicic acid calcium slurry is preferably 5%, and the solids component in the active silicic acid calcium slurry is xonotlite crystal or holder shellfish mullite crystal, and its chemical formula is respectively 6CaO6SiO
2H
2O, 5CaO6SiO
25H
2O.
Active silicic acid calcium slurry is the synthetic wedding agent of a kind of hydro-thermal, namely be the inorganic bonding agent that in dynamic hydrothermal treatment consists process, forms: at first according to the composition of xonotlite or holder shellfish mullite with quartz sand, lime and catalyzer are prepared burden, catalyzer is selected basic zirconium chloride or water glass for use, water and the batching ball mill of packing into is carried out wet-milling, when the solid granularity in the slurry reaches 1000 orders when above, be pumped in the reactor, by high-temperature high-voltage reaction hydro-thermal composite reactive Calucium Silicate powder slurry, the synthetic temperature of hydro-thermal is 180-200 ℃, the synthetic pressure of hydro-thermal is 0.8-1.2MPa, and stirring velocity is 250-300r/min.Active silicic acid calcium slurry is undertaken by following chemical equation, generates xonotlite or the agent of holder shellfish mullite bonded:
6CaO+6SiO
2+ nH
2O=6CaO6SiO
2H
2O (xonotlite)+(n-1) H
2O
5CaO+6SiO
2+ nH
2O=5CaO6SiO
25H
2O (holder shellfish mullite)+(n-5) H
2O
Of the present invention a kind of inorganic in conjunction with ceramic beaverboard, preferably made by the raw material of following parts by weight:
The present invention can adopt vacuum suction filter compression moulding technology or slip casting compression moulding technology in the preparation.Wherein, vacuum suction filter compression moulding technology is vacuum filtering shape process and compression moulding two-step approach moulding process, be that 50-100 ℃ slip is shaped to wet base by the vacuum filtering shape process method with temperature at first namely, and then the wet base of the hydropress by 300 tons after with moulding is pressed into the product of desired thickness and volume density; Slip casting compression moulding technology is slip casting and compression moulding one step processing technology, namely at first is that 50-100 ℃ slip injects mould with temperature, and then slip directly is pressed into the product of desired thickness and volume density by 300 tons hydropress.
The invention has the advantages that:
(1) takes all factors into consideration from aspects such as product price ratios, the ceramic beaverboard that the present invention develops, compare with traditional calcium silicate board with microporous, although product cost of the present invention slightly improves, use temperature and the toughness of product have also improved widely, because ceramic fiber is the principal constituent of this product, and active silicic acid calcium only is to use as wedding agent, undoubtedly, the ceramic beaverboard of this inorganic combination, its use temperature and toughness will be higher than traditional calcium silicate board with microporous out and away.
(2) ceramic beaverboard of the present invention does not contain organic toxicity volatile matters such as formaldehyde, belongs to pure inorganic materials, and pollution-free gaseous volatilization is at high temperature used in environmental protection, has improved the quality of life and Working environment.
Description of drawings
Fig. 1 is process flow sheet of the present invention.
Embodiment
The present invention will be further described below in conjunction with embodiment.
Embodiment 1
A kind of inorganic in conjunction with ceramic beaverboard, its proportion of composing is: standard type aluminum silicate fiber 40kg, the active silicic acid calcium slurry 350kg of holder shellfish mullite crystal mass content 5%, Tai-Ace S 150 0.3kg.Above-mentioned raw materials is added pulper carry out slurrying, staple length after slurrying is finished is 2mm, add water then, make slurry concentration remain on 3.0%, adopt vacuum forming equipment to carry out moulding then, be of a size of 920 * 620 * 65mm, product was put into 300 t hydraulic press compression mouldings after moulding finished, and made wet base thickness be compressed to 50mm by 65mm, sent into oven for drying again, through cutting, finally obtain product again.Present embodiment product Chemical Composition is as follows: Al
2O
3: 31%; SiO
2: 53.2%; Fe
2O
3+ CaO+MgO+K
2O+Na
2O:15%; Igloss 0.8%; The volume density of product is 301kg/m
3, heat permanent linear shrinkage ratio (1000 ℃ * 24h) be 1.4%; The cold conditions compressive strength is 0.212Mpa; Thermal conductivity: hot-face temperature is 0.047W/mk for 400 ℃, and 600 ℃ is 0.069W/mk, and 800 ℃ is 0.09W/mk.
Embodiment 2
A kind of inorganic in conjunction with ceramic beaverboard, its proportion of composing is: standard type aluminum silicate fiber 40Kg, the active silicic acid calcium slurry 500kg of xonotlite crystalline content 5%, Tai-Ace S 150 0.35Kg.Above-mentioned raw materials is added pulper carry out slurrying, staple length after slurrying is finished is 2mm, add water then, make slurry concentration remain on 4.0%, adopt vacuum forming equipment to carry out moulding then, be of a size of 920 * 620 * 65mm, product was put into 300 t hydraulic press compression mouldings after moulding finished, and made wet base thickness be compressed to 50mm by 65mm, sent into oven for drying again, through cutting, finally obtain product again.Present embodiment product Chemical Composition is as follows: Al
2O
3: 28%; SiO
2: 53%; Fe
2O
3+ CaO+MgO+K
2O+Na
2O:18%; Igloss 1.0%; The volume density of product is 285kg/m
3, heat permanent linear shrinkage ratio (1000 ℃ * 24h) be 1.6%; The cold conditions compressive strength is 0.258Mpa; Thermal conductivity: hot-face temperature is 0.043W/mk for 400 ℃, and 600 ℃ is 0.065W/mk, and 800 ℃ is 0.086W/mk.
Embodiment 3
A kind of inorganic in conjunction with ceramic beaverboard, its proportion of composing is: standard type aluminum silicate fiber 40Kg, the active silicic acid calcium slurry 800kg of xonotlite crystalline content 5%, polymerize aluminum chloride 0.4Kg.Above-mentioned raw materials is added pulper carry out slurrying, staple length after slurrying is finished is 2mm, add water then, make slurry concentration remain on 5.0%, adopt vacuum forming equipment to carry out moulding then, be of a size of 920 * 620 * 65mm, product was put into 300 t hydraulic press compression mouldings after moulding finished, and made wet base thickness be compressed to 50mm by 65mm, sent into oven for drying again, through cutting, finally obtain product again.Present embodiment product Chemical Composition is as follows: Al
2O
3: 22%; SiO
2: 53.7%; Fe
2O
3+ CaO+MgO+K
2O+Na
2O:23%; Igloss 1.3%; The volume density of product is 260kg/m
3, heat permanent linear shrinkage ratio (1000 ℃ * 24h) be 1.8%; The cold conditions compressive strength is 0.285Mpa; Thermal conductivity: hot-face temperature is 0.040W/mk for 100 ℃, and 600 ℃ is 0.062W/mk, and 800 ℃ is 0.084W/mk.
Embodiment 4
A kind of inorganic in conjunction with ceramic beaverboard, its proportion of composing is: high alumina type aluminum silicate fiber 40Kg, the active silicic acid calcium slurry 430kg of xonotlite crystalline content 5%, Tai-Ace S 150 0.3Kg.Above-mentioned raw materials is added pulper carry out slurrying, staple length after slurrying is finished is 2mm, add water then, make slurry concentration remain on 4.0%, adopt injection forming equipment to carry out moulding then, be of a size of 900 * 600 * 50mm, the wet base after moulding finishes is sent into oven for drying, finally obtains product.Present embodiment product Chemical Composition is as follows: Al
2O
3: 33.8%; SiO
2: 48.8%; Igloss 0.9%; Fe
2O
3+ CaO+MgO+K
2O+Na
2O:16.5%, the volume density of product is 292kg/m
3, heat permanent linear shrinkage ratio (1200 ℃ * 24h) be 1.9%; The cold conditions compressive strength is 0.246Mpa; Thermal conductivity: hot-face temperature is 0.045W/mk for 400 ℃, and 600 ℃ is 0.068W/mk, and 800 ℃ is 0.087W/mk.
Claims (5)
- One kind inorganic in conjunction with ceramic beaverboard, it is characterized in that being made by the raw material of following parts by weight:Ceramic fiber 50-70 partActive silicic acid calcium slurry 600-1000 partFlocculating aids 0.4-0.8 partWater 950-2500 part,Solid masses content in the described active silicic acid calcium slurry is 5%.
- 2. according to claim 1 inorganic in conjunction with ceramic beaverboard, it is characterized in that flocculating aids is polymerize aluminum chloride or Tai-Ace S 150.
- 3. according to claim 1 inorganic in conjunction with ceramic beaverboard, it is characterized in that the solids component in the active silicic acid calcium slurry is the xonotlite crystal, its chemical formula is 6CaO6SiO 2H 2O.
- 4. according to claim 1 inorganic in conjunction with ceramic beaverboard, it is characterized in that the solids component in the active silicic acid calcium slurry is holder shellfish mullite crystal, its chemical formula is 5CaO6SiO 25H 2O.
- 5. according to claim 1 inorganic in conjunction with ceramic beaverboard, it is characterized in that being made by the raw material of following parts by weight:65 parts of ceramic fibers700 parts in active silicic acid calcium slurry0.5 part of flocculating aids1750 parts in water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110394379 CN102515661B (en) | 2011-12-02 | 2011-12-02 | Inorganically combined ceramic fiber board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110394379 CN102515661B (en) | 2011-12-02 | 2011-12-02 | Inorganically combined ceramic fiber board |
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|---|---|
| CN102515661A CN102515661A (en) | 2012-06-27 |
| CN102515661B true CN102515661B (en) | 2013-07-03 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108033756B (en) * | 2017-12-12 | 2020-07-07 | 山东鲁阳节能材料股份有限公司 | High-density ceramic fiber board and preparation method thereof |
| CN111763062B (en) * | 2020-05-18 | 2022-02-18 | 唐山华纤科技有限公司 | Inorganic fiber insulation board and preparation method and application thereof |
| CN112624721B (en) * | 2020-12-16 | 2022-07-08 | 山东鲁阳节能材料股份有限公司 | High-density ceramic fiber board with built-in embedded part and integrated forming method thereof |
| CN112624722A (en) * | 2020-12-18 | 2021-04-09 | 山东鲁阳节能材料股份有限公司 | High-density board with expanded vermiculite as base material and preparation method thereof |
| CN112549282A (en) * | 2020-12-23 | 2021-03-26 | 山东鲁阳节能材料股份有限公司 | Production system and production method of high-density ceramic fiber board |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1597592A (en) * | 2004-09-14 | 2005-03-23 | 山东鲁阳股份有限公司 | Ceramic fiber back lining board |
-
2011
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1597592A (en) * | 2004-09-14 | 2005-03-23 | 山东鲁阳股份有限公司 | Ceramic fiber back lining board |
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| CN102515661A (en) | 2012-06-27 |
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Address after: 256120 Shandong city of Zibo province Yiyuan County Yi River Road No. 11 Patentee after: LUYANG ENERGY-SAVING MATERIALS CO., LTD. Address before: 256120 Shandong city of Zibo province Yiyuan County Yi River Road No. 11 Patentee before: Luyang Co., Ltd., Shandong |