CN111018558A - Preparation method of small-aperture light foamed ceramic insulation board - Google Patents
Preparation method of small-aperture light foamed ceramic insulation board Download PDFInfo
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- CN111018558A CN111018558A CN201911100264.3A CN201911100264A CN111018558A CN 111018558 A CN111018558 A CN 111018558A CN 201911100264 A CN201911100264 A CN 201911100264A CN 111018558 A CN111018558 A CN 111018558A
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- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
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- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
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Abstract
The invention provides a preparation method of a small-aperture light foamed ceramic insulation board, which sequentially comprises the following steps: s1 preparing raw materials: taking 40-50 parts of skarn, 8-12 parts of talc, 3-8 parts of bentonite, 35-45 parts of zeolite powder and 0.2-0.6 part of silicon carbide by mass parts, and preparing raw materials; s2 ball milling and pulping: ball-milling and crushing the prepared raw materials, wherein the fineness of mixed slurry obtained by ball-milling is 1.2% below a 250-mesh sieve; s3, blank making; s4, drying; and S5 sintering. According to the invention, the skarn is adopted to replace perlite as a main raw material to produce the foamed ceramic insulation board, so that the ceramic insulation board with small aperture, light weight and high strength is prepared, the cost is low, and the added value is high; meanwhile, the method provides a utilization value for the skarn and reduces the environmental pollution.
Description
Technical Field
The invention relates to the technical field of ceramic insulation board production, in particular to a preparation method of a small-aperture light foamed ceramic insulation board.
Background
At present, in the market, perlite is used as a foaming matrix for foamed ceramic insulation boards, but the perlite has high brittleness and relatively low strength. Skarn is a metamorphic rock, which is mainly composed of calcium-rich or magnesium-rich silicate minerals, generally formed by contact cross-substitution, and the mineral composition is complex, difficult to utilize and low in value; the foamed ceramic insulation board is a light material mainly containing closed pores, has the characteristics of heat insulation, light weight and the like, and is widely applied to various fields. The invention develops a low-cost, small-aperture and light-weight foamed ceramic insulation board by taking skarn as a main raw material and silicon carbide as a foaming agent.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a preparation method of a small-aperture light foamed ceramic insulation board.
The invention solves the technical problems through the following technical means:
a preparation method of a small-aperture light foamed ceramic insulation board sequentially comprises the following steps:
s1 preparing raw materials:
taking 40-50 parts of skarn, 8-12 parts of talc, 3-8 parts of bentonite, 35-45 parts of zeolite powder and 0.2-0.6 part of silicon carbide by mass parts, and preparing raw materials;
s2 ball milling and pulping:
ball-milling and crushing the prepared raw materials, wherein the fineness of mixed slurry obtained by ball-milling is 1.2% below a 250-mesh sieve;
s3 blank making:
drying the mixed slurry to make powder, and preparing a ceramic blank in a dry pressing mode;
s4 drying:
drying the formed blank body in a drying oven at 100-110 ℃ for 2 hours;
s5 sintering:
feeding the dried blank into a high-temperature electric furnace, raising the temperature for 38 minutes at 0-250 ℃, and preserving the temperature for 8 minutes; heating for 50 minutes at 250-950 ℃ and keeping the temperature for 8 minutes; heating for 40 minutes at 950-1120 ℃ and preserving heat for 8 minutes; the temperature rise time is 22 minutes at 1120-1150 ℃ and the heat preservation time is 8 minutes; heating to 1150-1180 deg.c for 10 min and maintaining for 5 min; heating to 1180-1200 deg.c for 5 min and maintaining for 5 min; sintering to obtain the finished product.
The invention has the advantages that:
compared with the prior art, the invention adopts skarn to replace perlite as the main raw material to produce the foamed ceramic insulation board, so that the ceramic insulation board with small aperture, light weight and high strength is prepared, the cost is low, and the added value is high; meanwhile, the method provides a utilization value for the skarn and reduces the environmental pollution.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Examples
The embodiment provides a preparation method of a small-aperture light foamed ceramic insulation board, which sequentially comprises the following steps:
s1 preparing raw materials:
taking 40-50 parts of skarn, 8-12 parts of talc, 3-8 parts of bentonite, 35-45 parts of zeolite powder and 0.2-0.6 part of silicon carbide by mass parts, and preparing raw materials;
s2 ball milling and pulping:
ball-milling and crushing the prepared raw materials, wherein the fineness of mixed slurry obtained by ball-milling is 1.2% below a 250-mesh sieve;
s3 blank making:
drying the mixed slurry to make powder, and preparing a ceramic blank in a dry pressing mode;
s4 drying:
drying the formed blank body in a drying oven at 100-110 ℃ for 2 hours;
s5 sintering:
feeding the dried blank into a high-temperature electric furnace, raising the temperature for 38 minutes at 0-250 ℃, and preserving the temperature for 8 minutes; heating for 50 minutes at 250-950 ℃ and keeping the temperature for 8 minutes; heating for 40 minutes at 950-1120 ℃ and preserving heat for 8 minutes; the temperature rise time is 22 minutes at 1120-1150 ℃ and the heat preservation time is 8 minutes; heating to 1150-1180 deg.c for 10 min and maintaining for 5 min; heating to 1180-1200 deg.c for 5 min and maintaining for 5 min; sintering to obtain the finished product.
The skarn has complex components and higher melting temperature, so that the sintering temperature of a green body is set to be high, the viscosity of a liquid phase is reduced, the gas foaming quantity is increased, and the foaming size is reduced; the silicon content of the skarn is high, and the foaming cracking overflow can be effectively prevented in the high-temperature sintering process; and the skarn contains metal elements, so that the compressive strength and the brightness of the product can be further enhanced, and the market competitiveness of the product is improved. Therefore, the skarn is adopted to replace perlite as a main raw material to produce the foamed ceramic insulation board, and the foamed ceramic insulation board has small aperture, dense foaming, low density, high strength, low cost and high added value; meanwhile, the method provides a utilization value for the skarn and reduces the environmental pollution.
It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (1)
1. A preparation method of a small-aperture light foamed ceramic insulation board is characterized by comprising the following steps: the method comprises the following steps in sequence:
s1 preparing raw materials:
taking 40-50 parts of skarn, 8-12 parts of talc, 3-8 parts of bentonite, 35-45 parts of zeolite powder and 0.2-0.6 part of silicon carbide by mass parts, and preparing raw materials;
s2 ball milling and pulping:
ball-milling and crushing the prepared raw materials, wherein the fineness of mixed slurry obtained by ball-milling is 1.2% below a 250-mesh sieve;
s3 blank making:
drying the mixed slurry to make powder, and preparing a ceramic blank in a dry pressing mode;
s4 drying:
drying the formed blank body in a drying oven at 100-110 ℃ for 2 hours;
s5 sintering:
feeding the dried blank into a high-temperature electric furnace, raising the temperature for 38 minutes at 0-250 ℃, and preserving the temperature for 8 minutes; heating for 50 minutes at 250-950 ℃ and keeping the temperature for 8 minutes; heating for 40 minutes at 950-1120 ℃ and preserving heat for 8 minutes; the temperature rise time is 22 minutes at 1120-1150 ℃ and the heat preservation time is 8 minutes; heating to 1150-1180 deg.c for 10 min and maintaining for 5 min; heating to 1180-1200 deg.c for 5 min and maintaining for 5 min; sintering to obtain the finished product.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911100264.3A CN111018558A (en) | 2019-11-12 | 2019-11-12 | Preparation method of small-aperture light foamed ceramic insulation board |
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| CN201911100264.3A CN111018558A (en) | 2019-11-12 | 2019-11-12 | Preparation method of small-aperture light foamed ceramic insulation board |
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Citations (9)
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|---|---|---|---|---|
| CN1147489A (en) * | 1995-10-10 | 1997-04-16 | 曾朝明 | Light foamed ceramic and its prodn |
| CN101333102A (en) * | 2008-07-31 | 2008-12-31 | 段连文 | Sintered porous brick from skarn type magnetite tailings and method for preparing same |
| CN102086129A (en) * | 2010-12-17 | 2011-06-08 | 信阳师范学院 | Light high-strength foaming material taking tuff as main raw material and preparation method of light high-strength foaming material |
| CN102603356A (en) * | 2012-03-21 | 2012-07-25 | 信阳方浩实业有限公司 | Heat-insulation decorative ceramic plate and production method thereof |
| CN105399441A (en) * | 2015-12-11 | 2016-03-16 | 浙江省建筑科学设计研究院有限公司 | Perlite-based micropore-closed type foamed ceramic |
| CN107500726A (en) * | 2017-09-30 | 2017-12-22 | 辽宁利盟高科新材料有限公司 | Small-aperture foamed ceramic insulation board and preparation method thereof |
| CN108503347A (en) * | 2018-04-23 | 2018-09-07 | 中集绿建环保科技有限公司 | Glass ceramics and preparation method thereof are melted in a kind of foaming for exterior wall |
| CN108794050A (en) * | 2018-07-10 | 2018-11-13 | 山东理工大学 | A kind of low cost height is held one's breath the preparation method of porosity heat-insulating construction material |
| CN109081677A (en) * | 2018-10-19 | 2018-12-25 | 景德镇陶瓷大学 | It is a kind of using high contents of calcium and magnesium skarn type iron tailings as the Antique Imitation Tiles green body and its manufacturing method of raw material |
-
2019
- 2019-11-12 CN CN201911100264.3A patent/CN111018558A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1147489A (en) * | 1995-10-10 | 1997-04-16 | 曾朝明 | Light foamed ceramic and its prodn |
| CN101333102A (en) * | 2008-07-31 | 2008-12-31 | 段连文 | Sintered porous brick from skarn type magnetite tailings and method for preparing same |
| CN102086129A (en) * | 2010-12-17 | 2011-06-08 | 信阳师范学院 | Light high-strength foaming material taking tuff as main raw material and preparation method of light high-strength foaming material |
| CN102603356A (en) * | 2012-03-21 | 2012-07-25 | 信阳方浩实业有限公司 | Heat-insulation decorative ceramic plate and production method thereof |
| CN105399441A (en) * | 2015-12-11 | 2016-03-16 | 浙江省建筑科学设计研究院有限公司 | Perlite-based micropore-closed type foamed ceramic |
| CN107500726A (en) * | 2017-09-30 | 2017-12-22 | 辽宁利盟高科新材料有限公司 | Small-aperture foamed ceramic insulation board and preparation method thereof |
| CN108503347A (en) * | 2018-04-23 | 2018-09-07 | 中集绿建环保科技有限公司 | Glass ceramics and preparation method thereof are melted in a kind of foaming for exterior wall |
| CN108794050A (en) * | 2018-07-10 | 2018-11-13 | 山东理工大学 | A kind of low cost height is held one's breath the preparation method of porosity heat-insulating construction material |
| CN109081677A (en) * | 2018-10-19 | 2018-12-25 | 景德镇陶瓷大学 | It is a kind of using high contents of calcium and magnesium skarn type iron tailings as the Antique Imitation Tiles green body and its manufacturing method of raw material |
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