CN106187052B - A kind of tobermorite type heat-insulating material and preparation method using calcium silicate slag preparation - Google Patents
A kind of tobermorite type heat-insulating material and preparation method using calcium silicate slag preparation Download PDFInfo
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- CN106187052B CN106187052B CN201610611931.4A CN201610611931A CN106187052B CN 106187052 B CN106187052 B CN 106187052B CN 201610611931 A CN201610611931 A CN 201610611931A CN 106187052 B CN106187052 B CN 106187052B
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/24—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing alkyl, ammonium or metal silicates; containing silica sols
- C04B28/26—Silicates of the alkali metals
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/0427—Dry materials
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- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
- C04B18/08—Flue dust, i.e. fly ash
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- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
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- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
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- C—CHEMISTRY; METALLURGY
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- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
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- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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Abstract
The present invention provides a kind of tobermorite type heat-insulating material prepared using calcium silicate slag and preparation method.Tobermorite type heat-insulating material provided by the invention, raw material include mixture, reinforcing fiber, waterglass, wherein mixture includes calcium silicate slag, flyash and silicon source replenishers, CaO and SiO in mixture2Molar ratio be 0.79~0.96, the quality of reinforcing fiber and waterglass accounts for the 2~10% and 0.5~3% of the mixture quality respectively.The invention further relates to a kind of preparation methods of tobermorite type heat-insulating material.Present invention collaboration prepares tobermorite type heat-insulating material using raw materials such as calcium silicate slag, flyash, with at low cost, the reaction time is short, low energy consumption, properties of product meet relevant criterion requirement, and the solid waste such as calcium silicate slag and flyash can be dissolved, there is apparent society, economy and environmental benefit.
Description
Technical field
The present invention relates to a kind of calcium silicate insulation more particularly to a kind of tobermorite types prepared using calcium silicate slag
Heat-insulating material and preparation method, belong to field of heat insulating materials.
Background technology
Calcium silicate insulation has many advantages, such as that density is low, thermal coefficient is small, resistance to compression and High anti bending strength, is a kind of top grade
Heat preserving and insulating material.The calcium silicate insulation generally used at this stage is divided into tobermorite type heat-insulating material and hard silico-calcium
Two class of stone-type heat-insulating material.Wherein, tobermorite type heat-insulating material is with tobermorite race hydrated calcium silicate crystal
(5CaO·6SiO2·5H2O, C5S6H5) it is main component, and it is doped with composite material made of additive and reinforcing fiber, it puts down
Equal density is 170~220kg/m3, for flexural strength more than 0.3MPa, thermal coefficient is 0.058~0.100W/ (mk), highest
Temperature in use is 650 DEG C, is widely used in the industries such as metallurgy, building materials, electric power, chemical industry.
Under normal circumstances, the primary raw material of synthesis tobermorite type heat-insulating material includes that siliceous material is (main to provide
SiO2), calcareous material (CaO is mainly provided), water, additive and reinforcing fiber etc., currently used siliceous material mainly wraps
Silica flour, diatomite, bentonite, Cab-O-sil etc. are included, common calcareous material includes mainly calcium hydroxide, quick lime etc..Study table
It is bright, by controlling SiO in raw material2Molar ratio between CaO, and it is anti-using the high temperature and pressure hydrothermal synthesis under specified conditions
It answers, tobermorite race hydrated calcium silicate crystal (referred to as tobermorite) can be made, be then accompanied by reinforcing fiber, additional
Tobermorite type heat-insulating material is made in agent.But in current high temperature and pressure hydrothermal synthesis reaction process, the reaction time is usually wanted
It asks and is not less than 8 hours, and it is about 30 that liquid, which consolidates mass ratio, and unit interval production capacity is low in production process and energy consumption is big, makes to finally obtain
Tobermorite type heat-insulating material production cost it is higher.
Further, since using quick lime or calcium hydroxide as the raw material of tobermorite type heat-insulating material at present, need big
Amount exploitation limestone mine not only increases cost of material, causes environmental pollution, but also is easy to cause safety accident.Another party
A large amount of exploitations in face, mine resources also bring crisis of resource.Demand with current tobermorite type heat-insulating material increases,
The above problem more highlights.
Flyash is the discarded object of power boiler discharge being discharged as the large electric power plant power plant of fuel using coal.Calcium silicate slag is to utilize
The primary solids residue generated after flyash extraction aluminium oxide.Since China is using coal as main energy sources, especially in the Inner Mongol
Midwest, large-size thermal power plant is using coal as fuel, along with the conveying of electric power, gives off about 12,000,000 tons of high aluminas every year
Flyash, and its amount of stockpiling over the years is more than 100,000,000 tons.1 ton of Al is often produced using aluminous fly-ash2O3While, it supervenes
2.2~2.5 tons of main component is β-C2The calcium silicate slag of S.The processing and utilization of the coals base solid waste such as above-mentioned flyash, calcium silicate slag,
Already become the bottleneck for restricting coal-electricity-ash-aluminium cycle industry development.In addition, coal base solid waste is largely stored up, not only occupy
A large amount of arable land, and serious problem of environmental pollution is brought, cause a large amount of villages to be forced to move.Therefore, how to solve or
Alleviate these problems, has been very urgent.
Invention content
To solve the above problems, the present invention provides a kind of tobermorite type heat-insulating material prepared using calcium silicate slag and system
Preparation Method, using calcium silicate slag, flyash respectively as main calcareous material and siliceous material, obtained Tuo Beimo in raw material
Carrying out stone-type heat-insulating material has good heat conductivility, compression strength and flexural strength, alternative existing tobermorite type
Heat-insulating material, while the utilization for above-mentioned coal base solid waste provides new approach.
The present invention provides a kind of tobermorite type heat-insulating material, and raw material includes mixture, reinforcing fiber, waterglass,
Wherein, mixture includes calcium silicate slag, flyash and silicon source replenishers, and CaO and SiO in mixture2Molar ratio be 0.79
~0.96, the quality of reinforcing fiber and waterglass accounts for the 2~10% and 0.5~3% of mixture quality respectively.
Tobermorite type heat-insulating material provided by the invention be make the mixed system of the mixture and water heating and
Pressurized conditions issue calcium silicates slurry made of raw hydrothermal synthesis reaction, and are obtained through further compression moulding.
The present invention is used to prepare in the above-mentioned mixture of tobermorite type heat-insulating material, the essential mineral of calcium silicate slag be at
It is divided into β-C2S、3CaO·Al2O3(it is abbreviated as C3) and Na A2O etc., and contain a certain amount of SiO2, can be used as main calcareous material
Material and a small amount of siliceous material；SiO in flyash2Content it is higher, and contain a small amount of CaO, can be used as main siliceous material
Material and a small amount of calcareous material adjust CaO and SiO in mixture by adding other silicon source replenishers2Molar ratio to 0.79
~0.96：1.
Inventor is the study found that at high temperature under high pressure, the β-C in calcium silicate slag2S fast hydrations form C-S-H gels and Ca
(OH)2, by controlling the temperature and pressure of hydro-thermal reaction, C-S-H and SiO2Reaction can generate tobermorite race hydrated calcium silicate
Crystal (5CaO6SiO2·5H2O)。
So in embodiment of the present invention, by adjusting CaO and SiO in mixture2Molar ratio, meet prepare support
The ingredient requirement of shellfish mullite race hydrated calcium silicate crystal can make under corresponding high temperature and pressure hydrothermal synthesis reaction condition
Main component in calcium silicates slurry obtained is tobermorite race hydrated calcium silicate crystal, by above-mentioned calcium silicates slurry into one
Walk compression moulding, you can obtain tobermorite type heat-insulating material.
In the embodiment of the invention, mixture includes：50~80 parts by weight of calcium silicate slag, 10~30 weight of flyash
Part, 5~15 parts by weight of silicon source replenishers are measured, so that CaO and SiO in mixture2Molar ratio reach 0.79~0.96：1.
The input amount for properly increasing a certain reactant may advantageously facilitate reaction progress, improve product yield.In actual production
In the process, typically make CaO and SiO in mixture by properly increasing the input amount of calcium silicate slag2Molar ratio reach 0.90~
0.96：1, to improve the product yield for meeting tobermorite race hydrated calcium silicate crystal form in calcium silicates slurry.
It is appreciated that calcium silicate slag, flyash and the silicon source replenishers in mixture have specific surface area appropriate, be conducive to
Target product is obtained, in the embodiment of the invention, the grain size of mixture is 250~400 mesh.
Calcium silicate slag used in the present invention, it is commercially available, it also can voluntarily prepare, also may be from the by-product of other industries processing
Object such as may be used pre-desiliconizing soda lime sintering process and is made after extracting aluminium oxide in flyash, and general method is usually head
First aluminous fly-ash is handled using sodium hydroxide solution, obtains the pre-desiliconizing of sodium silicate solution and A/S 2.0 or so
Then ash uses soda lime sintering process processing pre-desiliconizing ash, obtains product alumina and sodium silicate solution and by-product silico-calcium
Slag.Detailed production technology can refer to relevant open report, such as " pre-desiliconizing with high alumina fly ash soda lime sintering process carries aluminium
Calcium silicate slag dealkalize technical study ", Wang Yong etc.,《Light metal》, the 8th phase in 2015, the 10-14 pages, or according to patent application
Method described in CN103332710A (a kind of method that pre-desiliconizing with high alumina fly ash synchronizes reduction alkali content), to high alumina fine coal
Ash implements pre-desiliconizing and using the calcium silicate slag by-product obtained after soda lime sintering process extraction aluminium oxide.
Silicon source replenishers used in the present invention can be one kind in silica flour, diatomite, bentonite, Cab-O-sil
Or it is a variety of, can also be other siliceous materials commonly used in the art, to adjust CaO and SiO in mixture2Molar ratio.
Reinforcing fiber used in the present invention can be one in glass fibre, wood fibre, polypropylene, polyamide
Kind or a variety of mixing, can also be other reinforcing fibers commonly used in the art.
Waterglass used in the present invention, can be sodium silicate or potassium water glass, and molecular formula is respectively Na2O·
nSiO2And K2O·nSiO2, wherein coefficient n is modulus of water glass.In specific embodiments of the present invention, the waterglass that uses
Modulus is 2.0~2.6, a concentration of 1500g/L~1750g/L.
The present invention also provides a kind of preparation methods of tobermorite type heat-insulating material, using above-mentioned raw materials as Tuo Beimo
Carry out the raw material of stone-type heat-insulating material, specific manufacturing step includes：
By above-mentioned mixture and water with mass ratio for 1：4~10 mixing, 190~250 DEG C of temperature, pressure 1.3~
It is reacted 4 hours or more under 4.0MPa, obtains calcium silicates slurry；
Above-mentioned calcium silicates slurry is mixed with reinforcing fiber and waterglass, obtains mixed slurry；
It by above-mentioned mixed slurry compression moulding, is placed at 60~105 DEG C 16~24 hours, it is adiabatic to obtain tobermorite type
Material.
It has been observed that making CaO and SiO in mixture2Molar ratio satisfaction prepare tobermorite race hydrated calcium silicate crystal
Required ingredient requirement, and reacted under specific high temperature and pressure hydrothermal synthesis reaction condition, the calcium silicates being prepared
Main component in slurry is tobermorite race hydrated calcium silicate crystal, and above-mentioned calcium silicates slurry is accompanied by reinforcing fiber, outer
Add agent further compression moulding (using waterglass as additive in the present invention), you can obtain tobermorite type heat insulating material
Material.
In embodiment of the present invention, by above-mentioned mixture and water with solid-liquid mass ratio for 1：4~10 mixing, in temperature
190~250 DEG C, under 1.3~4.0MPa of pressure, hydro-thermal reaction 4 hours or more can make the Tuo Bei in calcium silicates slurry obtained
Mullite race hydrated calcium silicate crystal meets needs, and the proper extension reaction time is conducive to obtain required crystal form or be promoted in product
Meet the crystalline product yield of tobermorite race hydrated calcium silicate crystal form, in the actual production process, can usually control anti-
It is 4~10 hours between seasonable, specifically, the mass ratio that can control mixture and water is 1：6~8, the reaction time is 7~8 small
When.
The temperature and pressure of control high temperature and pressure hydrothermal synthesis reaction system is also the condition for obtaining required crystal, is generally wanted
Ask pressure should in 1.3MPa or more, consider in the actual production process operation feasibility, can with control pressure 1.3~
4.0MPa, in embodiment of the present invention, control reaction pressure is 1.7~1.9MPa, and temperature is 205~210 DEG C.
As previously mentioned, the mixture used in the present invention, the progress of reaction is more advantageous to specific surface area appropriate,
In an embodiment of the present invention, it is 250~400 mesh mixture to be machined to grain size first, is then mixed with water and carries out high temperature
High pressure hydrothermal synthesis reaction.
It is this field conventional means by mixed slurry compression moulding, such as can be by mixing slurry in the preparation method of the present invention
Material is injected into the mold of pressure filtration molding machine, is carried out press filtration, dehydration, molding, can also be used the other compression moulding sides in this field
Method repeats no more.
Compared with prior art, the present invention being used as raw material by using a certain amount of calcium silicate slag, flyash etc., pass through control
CaO and SiO in raw material2Molar ratio, and react under high temperature and pressure hydrothermal synthesis reaction condition, and further suppress
Molding, so as to get tobermorite type heat-insulating material performance meet《GB/T10699-2015I heat-insulating calcium silicate products》's
Standard requirement, can substitute current tobermorite type heat-insulating material.
The present invention utilizes calcium silicate slag and flyash by collaboration, and has been prepared and has met using mark as primary raw material
Accurate tobermorite type heat-insulating material, has not only dissolved coal base solid waste, has reduced the exploitation of limestone mine, Er Qie great on a large scale
Width reduces the cost of material of tobermorite type heat-insulating material, has significant society, economy and environmental benefit.
The preparation method of tobermorite type heat-insulating material provided by the invention, high temperature and pressure hydrothermal synthesis are required in the process
Liquid stereoplasm amount is smaller and synthesising reacting time can greatly shorten, and not only significantly reduces energy consumption, but also improve production efficiency,
To further reduced production cost.
Description of the drawings
Fig. 1 is the XRD spectrum of the tobermorite type heat-insulating material in embodiment 1；
Fig. 2 is the XRD spectrum of the tobermorite type heat-insulating material in embodiment 2.
Specific implementation mode
Performance detection is carried out to prepared tobermorite type heat-insulating material in following embodiment, is referred to《GB/
T10699-2015I heat-insulating calcium silicate products》In examination criteria.
Embodiment 1
The parts by weight of calcium silicate slag, flyash and silica flour are respectively in mixture：68 parts of calcium silicate slag, 22 parts of flyash,
10 parts of silica flour.Wherein, the chemical composition of calcium silicate slag and flyash is as shown in table 1, and the grain size of silica flour is less than 200 mesh, and stone
SiO in English powder2Content is not less than 85%.
By said ratio, make CaO and SiO in mixture2Molar ratio be about 0.96.
The chemical composition (wt%) of 1 calcium silicate slag of table and flyash
Above-mentioned mixture is milled to 320 mesh after mixing, and be uniformly mixed with the water of about 600 parts by weight (i.e. water with
The mass ratio of mixture is about 6：1) it, is injected into reaction kettle, in the item that pressure is 1.9MPa or so, temperature is 210 DEG C or so
It is reacted under part 4 hours, then the reaction was continued 3 hours under conditions of pressure is 1.7MPa, temperature is 205 DEG C or so, obtains silicon
Sour calcium slurry.
Above-mentioned calcium silicates slurry is pumped into out of reaction kettle in medial launder, and glass fibre and waterglass is added, and glass
The quality of glass fiber and waterglass accounts for 3% or so and 2% or so of mixture quality respectively, it is to be mixed uniformly after obtain mixing slurry
Material, mixed slurry is pumped into pressure filtration molding machine, is maintained be molded under the pressure of 5000t within 1.5 minutes, is subsequently placed in tunnel oven
Interior baking 18 hours or so, control baking temperature are 80 DEG C or so to get to tobermorite type heat-insulating material.
The main object of the tobermorite type heat-insulating material obtained in the present embodiment is analyzed using X-ray diffraction method (XRD)
Phase, main component are tobermorite race hydrated calcium silicate crystal (5CaO6SiO2·5H2O), as shown in Figure 1.
After testing, the density of the tobermorite type heat-insulating material obtained in the present embodiment is 194kg/m3, at 400 DEG C
Thermal coefficient 0.080W/ (mk), compression strength 1.10MPa, flexural strength 0.65Mpa, 650 DEG C of main maximum operation (service) temperature,
A1 grades of fire protecting performance, reaches《GB/T10699-2015I heat-insulating calcium silicate products》Standard requirement, current support can be substituted
Shellfish mullite-type heat-insulating material.
Embodiment 2
The parts by weight of calcium silicate slag, flyash and silica flour are respectively in mixture：64 parts of calcium silicate slag, 25 parts of flyash,
11 parts of silica flour.Wherein, calcium silicate slag is according to a kind of patent application CN103332710A (pre-desiliconizing with high alumina fly ash synchronization reductions
The method of alkali content) method described in embodiment 1, pre-desiliconizing is implemented to aluminous fly-ash and is extracted using soda lime sintering process
The calcium silicate slag by-product obtained after aluminium oxide, flyash is by DaTang International poer Co., Ltd's high alumina Coal Resource Development profit
It is provided with research and development centre, silica flour grain size is less than 200 mesh, and SiO in silica flour2Content is not less than 85%.
By said ratio, make CaO and SiO in mixture2Molar ratio be about 0.95.
Above-mentioned raw materials are milled to 320 mesh after mixing, and be uniformly mixed with the water of 800 parts by weight or so (i.e. water with
The mass ratio of mixture is about 8：1) it, is injected into reaction kettle, is 1.9MPa in pressure, under conditions of temperature is 210 DEG C or so
Then reaction 5 hours is 1.7MPa in pressure, the reaction was continued 3 hours under conditions of temperature is 205 DEG C or so, obtains calcium silicates
Slurry.
Above-mentioned calcium silicates slurry is pumped from reaction kettle and transports to medial launder, glass fibre and water are then added into medial launder
Glass, and the quality of glass fibre and waterglass accounts for 3% or so and 2% or so of mixture quality respectively, it is to be mixed uniformly after
Mixed slurry is obtained, mixed slurry is pumped into pressure filtration molding machine, keeps being molded for 1.5 minutes under the pressure of 5000t, most postposition
In being toasted 18 hours or so in tunnel oven, control baking temperature is 80 DEG C or so, obtains tobermorite type heat-insulating material.
The main object of the tobermorite type heat-insulating material obtained in the present embodiment is analyzed using X-ray diffraction method (XRD)
Phase, main component are tobermorite race hydrated calcium silicate crystal (5CaO6SiO2·5H2O), as shown in Figure 2.
After testing, the density of the calcium silicate insulation obtained in the present embodiment is 190kg/m3, the heat conduction system at 400 DEG C
Number 0.081W/ (mk), compression strength 1.0MPa, flexural strength 0.64Mpa, 650 DEG C of maximum operation (service) temperature, fire protecting performance A1
Grade, reaches《GB/T10699-2015I heat-insulating calcium silicate products》Standard requirement, current tobermorite type can be substituted
Heat-insulating material.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (5)
1. a kind of tobermorite type heat-insulating material, raw material includes mixture, reinforcing fiber, waterglass, which is characterized in that institute
It includes 5~15 parts by weight of 50~80 parts by weight of calcium silicate slag, 10~30 parts by weight of flyash and silicon source replenishers to state mixture, described
The grain size of mixture is 250~400 mesh；The silicon source replenishers are one kind in silica flour, diatomite, bentonite, Cab-O-sil
Or it is a variety of；CaO and SiO in the mixture2Molar ratio be 0.79~0.96, the reinforcing fiber and the waterglass
Quality accounts for the 2~10% and 0.5~3% of the mixture quality respectively；
The tobermorite type heat-insulating material is that product made from step is manufactured as follows：
By the mixture and water with mass ratio for 1：4~10 mixing, at 190~250 DEG C of temperature, 1.3~4.0MPa of pressure
React 4 hours or more, obtain calcium silicates slurry；
Above-mentioned calcium silicates slurry is mixed with the reinforcing fiber and waterglass, obtains mixed slurry；
It by above-mentioned mixed slurry compression moulding, is placed at 60~105 DEG C 16~24 hours, it is adiabatic to obtain the tobermorite type
Material.
2. tobermorite type heat-insulating material according to claim 1, which is characterized in that the calcium silicate slag is using pre- de-
By-product of the silicon soda lime sintering process after extracting aluminium oxide in flyash.
3. tobermorite type heat-insulating material according to claim 1, which is characterized in that the reinforcing fiber is glass fibers
It is one or more in dimension, wood fibre, polypropylene, polyamide.
4. the preparation method of claim 1-3 any one of them tobermorite type heat-insulating materials, which is characterized in that including such as
Lower manufacturing step：
By the mixture and water with mass ratio for 1：4~10 mixing, at 190~250 DEG C of temperature, 1.3~4.0MPa of pressure
React 4 hours or more, obtain calcium silicates slurry；
Above-mentioned calcium silicates slurry is mixed with the reinforcing fiber and waterglass, obtains mixed slurry；
It by above-mentioned mixed slurry compression moulding, is placed at 60~105 DEG C 16~24 hours, it is adiabatic to obtain the tobermorite type
Material；
Further include that the mixture is machined to grain size as 250~400 mesh.
5. preparation method according to claim 4, which is characterized in that by the mixture and water with mass ratio for 1：6~8
Mixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610611931.4A CN106187052B (en) | 2016-07-27 | 2016-07-27 | A kind of tobermorite type heat-insulating material and preparation method using calcium silicate slag preparation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610611931.4A CN106187052B (en) | 2016-07-27 | 2016-07-27 | A kind of tobermorite type heat-insulating material and preparation method using calcium silicate slag preparation |
Publications (2)
| Publication Number | Publication Date |
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| CN106187052A CN106187052A (en) | 2016-12-07 |
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| CN106747205B (en) * | 2017-01-03 | 2019-08-02 | 大唐国际发电股份有限公司高铝煤炭资源开发利用研发中心 | A method of eakleite is prepared using calcium silicate slag |
| CN106966402B (en) * | 2017-03-24 | 2020-03-10 | 大唐国际发电股份有限公司高铝煤炭资源开发利用研发中心 | Method for preparing tobermorite by using calcium silicate slag |
| CN108069694B (en) * | 2017-12-13 | 2019-10-08 | 中南大学 | A kind of calcium silicate board and preparation method thereof |
| CN108046824B (en) * | 2018-01-20 | 2020-11-13 | 南京理工大学 | Steel fiber toughened internal curing high-strength silicate ceramsite and preparation method thereof |
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| CN110330305A (en) * | 2019-07-15 | 2019-10-15 | 重庆大学 | A kind of hydrated calcium silicate imitated wood material and preparation method thereof |
| CN112876196A (en) * | 2021-01-14 | 2021-06-01 | 国网浙江省电力有限公司绍兴供电公司 | Fireproof plate for cable trench and preparation method thereof |
| CN113185251B (en) * | 2021-05-19 | 2024-07-19 | 湖南愿景住宅工业科技有限公司 | Light high-strength fiber gypsum board and preparation method thereof |
| CN113277794A (en) * | 2021-06-17 | 2021-08-20 | 内蒙古工业大学 | Tobo mullite type A-level wall thermal insulation material based on cooperation of carbide slag and silica fume and preparation method thereof |
| CN113413865A (en) * | 2021-07-14 | 2021-09-21 | 南通大学 | Multifunctional adsorbent capable of removing nitrogen and phosphorus and removing heavy metal after recovery and preparation method thereof |
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