CN106187052A - A kind of tobermorite type adiabator utilizing calcium silicate slag to prepare and preparation method - Google Patents
A kind of tobermorite type adiabator utilizing calcium silicate slag to prepare and preparation method Download PDFInfo
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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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- 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
- C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
- C04B18/08—Flue dust, i.e. fly ash
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- 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
- 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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- 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
- 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
- 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
- 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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- 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
- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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Abstract
The present invention provides a kind of tobermorite type adiabator utilizing calcium silicate slag to prepare and preparation method.The tobermorite type adiabator that the present invention provides, its raw material includes compound, reinforcing fiber, waterglass, and wherein, compound includes calcium silicate slag, flyash and silicon source supplement, CaO and SiO in compound2Molar ratio be 0.79～0.96, the quality of reinforcing fiber and waterglass accounts for the 2～10% and 0.5～3% of described mixture quality respectively.The invention still further relates to the preparation method of a kind of tobermorite type adiabator.The present invention is collaborative utilizes the raw material such as calcium silicate slag, flyash to prepare tobermorite type adiabator, have low cost, the response time is short, energy consumption is low, properties of product meet relevant criterion requirement, and the solid waste such as calcium silicate slag and flyash of can dissolving, has obvious society, economy and environmental benefit.
Description
Technical field
The present invention relates to a kind of calcium silicate insulation, particularly relate to a kind of tobermorite type utilizing calcium silicate slag to prepare
Adiabator and preparation method, belong to field of heat insulating materials.
Background technology
Calcium silicate insulation has that density is low, heat conductivity is little, resistance to compression and the advantage such as rupture strength is high, is a kind of high-grade
Heat preserving and insulating material.The calcium silicate insulation that present stage commonly uses is divided into tobermorite type adiabator and hard silico-calcium
Stone-type adiabator two class.Wherein, tobermorite type adiabator is with tobermorite race hydrated calcium silicate crystal
(5CaO·6SiO2·5H2O, C5S6H5) it is main component, and it is doped with additive and composite that reinforcing fiber is made, it is put down
All density is 170～220kg/m3, rupture strength is more than 0.3MPa, and heat conductivity is 0.058～0.100W/ (m k), the highest
Using temperature is 650 DEG C, is widely used in the industries such as metallurgy, building materials, electric power, chemical industry.
Generally, the primary raw material of synthesis tobermorite type adiabator includes that siliceous material (mainly provides
SiO2), calcareous material (CaO is mainly provided), water, additive and reinforcing fiber etc., the most conventional siliceous material mainly wraps
Including silica flour, kieselguhr, bentonite, Cab-O-sil etc., conventional calcareous material mainly includes slaked lime, quick lime etc..Research table
Bright, by controlling SiO in raw material2And the mol ratio between CaO, and use the High Temperature High Pressure Hydrothermal Synthesis under specified conditions anti-
Should, tobermorite race hydrated calcium silicate crystal (referred to as tobermorite) can be prepared, be then accompanied by reinforcing fiber, additional
Agent, prepares tobermorite type adiabator.But in current High Temperature High Pressure Hydrothermal Synthesis course of reaction, the response time is generally wanted
Asking and be not less than 8 hours, and liquid-solid mass ratio is about 30, in production process, unit interval production capacity is low and energy consumption big, makes to finally give
The production cost of tobermorite type adiabator higher.
Additionally, due to currently used quick lime or slaked lime are as the raw material of tobermorite type adiabator, need big
Amount exploitation limestone mine, not only makes cost of material raise, cause environmental pollution, and easily causes security incident.The opposing party
Face, a large amount of exploitations of mine resources also bring crisis of resource.Along with the demand of current tobermorite type adiabator increases,
The problems referred to above more highlight.
Flyash is the primary solids garbage that the large electric power plant power plant with coal as fuel is discharged.Calcium silicate slag is to utilize
The primary solids residue that flyash produces after extracting aluminium oxide.Owing to China is with coal as main energy sources, especially in the Inner Mongol
Midwest, large-size thermal power plant is with 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 over the years amount of stockpiling is more than 100,000,000 tons.Aluminous fly-ash is utilized often to produce 1 ton of Al2O3While, supervene
2.2～2.5 tons be mainly composed of β-C2The calcium silicate slag of S.The process of the coal base solid wastes such as above-mentioned flyash, calcium silicate slag and utilization,
Become the bottleneck of restriction coal-electricity-ash-aluminum circulation industry development already.Additionally, coal base solid waste is stored up in a large number, not only occupy
Substantial amounts of arable land, and bring serious problem of environmental pollution, cause a large amount of village to be forced resettlement.Therefore, how to solve or
Alleviate these problems, be very urgent.
Summary of the invention
For solving the problems referred to above, the present invention provides a kind of tobermorite type adiabator utilizing calcium silicate slag to prepare and system
Preparation Method, uses calcium silicate slag, flyash respectively as main calcareous material and siliceous material, obtained Tuo Beimo in raw material
Carry out stone-type adiabator and there is good heat conductivility, comprcssive strength and rupture strength, alternative existing tobermorite type
Adiabator, the utilization for above-mentioned coal base solid waste simultaneously provides new approach.
The present invention provides a kind of tobermorite type adiabator, and its raw material includes compound, reinforcing fiber, waterglass,
Wherein, compound includes calcium silicate slag, flyash and silicon source supplement, and CaO and SiO in compound2Molar 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.
The tobermorite type adiabator that the present invention provides be the mixed system making described compound and water in heating and
Pressurized conditions issues the calcium silicates slurry that raw hydrothermal synthesis reaction is made, and through the most compressing and obtain.
The present invention is in the above-mentioned compound preparing tobermorite type adiabator, and the essential mineral of calcium silicate slag is for becoming
It is divided into β-C2S、3CaO·Al2O3(it is abbreviated as C3And Na A)2O etc., and containing a certain amount of SiO2, can be as main calcareous material
Material and a small amount of siliceous material；SiO in flyash2Content higher, and containing a small amount of CaO, can be as main siliceous material
Material and a small amount of calcareous material, by adding other silicon source supplement, CaO and SiO in regulation compound2Mol ratio to 0.79
～0.96:1.
Inventor studies discovery, at high temperature under high pressure, and the β-C in calcium silicate slag2S fast hydration forms C-S-H gel 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 (5CaO 6SiO2·5H2O)。
So, in embodiment of the present invention, by CaO and SiO in regulation compound2Mol ratio, meet preparation torr
The ingredient requirement of shellfish mullite race hydrated calcium silicate crystal, under corresponding High Temperature High Pressure Hydrothermal Synthesis reaction condition, can make
Prepare calcium silicates slurry in be mainly composed of tobermorite race hydrated calcium silicate crystal, above-mentioned calcium silicates slurry is entered one
Walk compressing, i.e. can get tobermorite type adiabator.
In the embodiment of the invention, compound includes: calcium silicate slag 50～80 weight portion, flyash 10～30 weight
Amount part, silicon source supplement 5～15 weight portion, so that CaO and SiO in compound2Mol ratio reach 0.79～0.96:1.
Properly increase the input amount of a certain reactant to may advantageously facilitate reaction and carry out, improve product yield.In actual production
During, it is common that by properly increasing the input amount of calcium silicate slag, make CaO and SiO in compound2Mol ratio reach 0.90～
0.96:1, to improve the product yield meeting tobermorite race hydrated calcium silicate crystal formation in calcium silicates slurry.
The calcium silicate slag, flyash and the silicon source supplement that are appreciated that in compound have suitable specific surface area, are conducive to
Obtaining target product, in the embodiment of the invention, the particle diameter of compound is 250～400 mesh.
Calcium silicate slag used in the present invention, commercially available, it is possible to prepare voluntarily, it is possible to from the by-product of other industries processing
Thing, as pre-desiliconizing soda lime sintering process can be used to prepare after extracting aluminium oxide from flyash, general method is usually head
First use sodium hydroxide solution that aluminous fly-ash is processed, obtain the pre-desiliconizing that sodium silicate solution and A/S are about 2.0
Ash, then uses soda lime sintering process to process pre-desiliconizing ash, obtains product alumina and sodium silicate solution, and by-product silico-calcium
Slag.Detailed production technology is referred to the open report being correlated with, and such as " pre-desiliconizing with high alumina fly ash soda lime sintering process carries aluminum
Calcium silicate slag dealkalize technical study ", Wang Yong etc., " light metal ", and the 8th phase in 2015, the 10-14 page, or according to patent application
Method described in CN103332710A (a kind of method that pre-desiliconizing with high alumina fly ash synchronizes to reduce alkali content), to high alumina fine coal
Ash implements pre-desiliconizing the calcium silicate slag by-product using soda lime sintering process to obtain after extracting aluminium oxide.
Silicon source supplement used in the present invention, can be the one in silica flour, kieselguhr, bentonite, Cab-O-sil
Or multiple, it is also possible to it is other siliceous material commonly used in the art, to regulate CaO and SiO in compound2Mol ratio.
Reinforcing fiber used in the present invention, can be in glass fibre, wood fibre, polypropylene, polyamide
Kind or multiple mixing, it is also possible to be other reinforcing fiber commonly used in the art.
Waterglass used in the present invention, can be sodium silicate or KP1, and its 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 of use
Modulus is 2.0～2.6, and concentration is 1500g/L～1750g/L.
The present invention also provides for the preparation method of a kind of tobermorite type adiabator, uses above-mentioned raw materials as Tuo Beimo
Carrying out the raw material of stone-type adiabator, concrete manufacturing step includes:
Above-mentioned compound and water with mass ratio as 1:4～10 are mixed, temperature 190～250 DEG C, pressure 1.3～
React more than 4 hours under 4.0MPa, obtain calcium silicates slurry；
Above-mentioned calcium silicates slurry is mixed with reinforcing fiber and waterglass, obtains mixed slurry；
By compressing for above-mentioned mixed slurry, it is placed at 60～105 DEG C 16～24 hours, obtains tobermorite type adiabatic
Material.
It has been observed that make CaO and SiO in compound2Mol ratio meet prepare tobermorite race hydrated calcium silicate crystal
Required ingredient requirement, and react under specific High Temperature High Pressure Hydrothermal Synthesis reaction condition, the calcium silicates 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 (using waterglass in the present invention as additive) the most compressing, i.e. can get tobermorite type heat insulating material
Material.
In embodiment of the present invention, above-mentioned compound and water with solid-liquid mass ratio as 1:4～10 are mixed, in temperature
190～250 DEG C, under pressure 1.3～4.0MPa, hydro-thermal reaction can make the Tuo Bei in the calcium silicates slurry prepared for more than 4 hours
Mullite race hydrated calcium silicate crystal meets needs, and the proper extension response time is conducive to obtaining required crystal formation or promoting in product
Meet the crystalline product yield of tobermorite race hydrated calcium silicate crystal formation, in actual production process, generally can control anti-
Being 4～10 hours between Ying Shi, concrete, the mass ratio that can control compound and water is 1:6～8, and the response time is 7～8 little
Time.
The temperature and pressure controlling High Temperature High Pressure Hydrothermal Synthesis reaction system is also the condition obtaining required crystal, typically wants
Ask pressure should at more than 1.3MPa, consider in actual production process operation feasibility, can control pressure 1.3～
4.0MPa, in embodiment of the present invention, controlling reaction pressure is 1.7～1.9MPa, and temperature is 205～210 DEG C.
As it was previously stated, the compound used in the present invention, there is suitable specific surface area and be more beneficial for the carrying out of reaction,
In an embodiment of the present invention, first compound is machined to particle diameter is 250～400 mesh, then mixes with water and carries out high temperature
High pressure hydrothermal synthesis reaction.
In the preparation method of the present invention, by compressing for mixed slurry for this area conventional means, such as can mixing slurry
Material is injected in the mould of pressure filtration molding machine, carries out filter pressing, dehydration, molding, it would however also be possible to employ other compressing side of this area
Method, repeats no more.
The present invention compared with prior art, by use a certain amount of calcium silicate slag, flyash etc. as raw material, by controlling
CaO and SiO in raw material2Mol ratio, and react under High Temperature High Pressure Hydrothermal Synthesis reaction condition, and suppress further
Molding so as to get the performance of tobermorite type adiabator meet " GB/T10699-2015I heat-insulating calcium silicate product "
Standard-required, can substitute current tobermorite type adiabator.
The present invention is by collaborative calcium silicate slag and the flyash of utilizing, and has prepared as primary raw material and meet use mark
Accurate tobermorite type adiabator, coal base solid waste of having dissolved the most on a large scale, decrease the exploitation of limestone mine, Er Qie great
Width reduces the cost of material of tobermorite type adiabator, has significant society, economy and environmental benefit.
The preparation method of the tobermorite type adiabator that the present invention provides, required during High Temperature High Pressure Hydrothermal Synthesis
Liquid-solid quality is smaller and synthesising reacting time can be greatly shortened, and not only significantly reduces energy consumption, and improves production efficiency,
Thus reduce further production cost.
Accompanying drawing explanation
Fig. 1 is the XRD figure spectrum of the tobermorite type adiabator in embodiment 1；
Fig. 2 is the XRD figure spectrum of the tobermorite type adiabator in embodiment 2.
Detailed description of the invention
Following example carry out performance detection, all with reference to " GB/ to prepared tobermorite type adiabator
T10699-2015I heat-insulating calcium silicate product " in examination criteria.
Embodiment 1
In compound the parts by weight of calcium silicate slag, flyash and silica flour be respectively as follows: calcium silicate slag 68 parts, 22 parts of flyash,
Silica flour 10 parts.Wherein, the chemical composition of calcium silicate slag and flyash is as shown in table 1, and the particle diameter 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 compound2Molar ratio be about 0.96.
The chemical composition (wt%) of table 1 calcium silicate slag and flyash
To be milled to 320 mesh after above-mentioned compound mix homogeneously, and mix homogeneously with the water of about 600 weight portions (i.e. water with
The mass ratio of compound is about 6:1), be injected in reactor, pressure be about 1.9MPa, temperature be the bar of about 210 DEG C
Under part react 4 hours, then pressure be 1.7MPa, temperature be about 205 DEG C under conditions of continue reaction 3 hours, obtain silicon
Acid calcium slurry.
Above-mentioned calcium silicates slurry is pumped in medial launder in reactor, and adds glass fibre and waterglass, and glass
The quality of glass fiber and waterglass accounts for about the 3% and about 2% of mixture quality respectively, to be mixed uniformly after obtain mixing slurry
Material, is pumped into mixed slurry in pressure filtration molding machine, maintains molding in 1.5 minutes, be subsequently placed in tunnel cave under the pressure of 5000t
Interior baking about 18 hours, controlling baking temperature is about 80 DEG C, i.e. obtains tobermorite type adiabator.
X-ray diffraction method (XRD) is used to analyze the dominant of the tobermorite type adiabator obtained in the present embodiment
Phase, it is mainly composed of tobermorite race hydrated calcium silicate crystal (5CaO 6SiO2·5H2O), as shown in Figure 1.
After testing, the density of the tobermorite type adiabator obtained in the present embodiment is 194kg/m3, at 400 DEG C
Heat conductivity 0.080W/ (m k), comprcssive strength 1.10MPa, rupture strength 0.65Mpa, main maximum operation (service) temperature 650 DEG C,
Fire protecting performance A1 level, has reached the standard-required of " GB/T10699-2015I heat-insulating calcium silicate product ", can substitute current torr
Shellfish mullite-type adiabator.
Embodiment 2
In compound the parts by weight of calcium silicate slag, flyash and silica flour be respectively as follows: calcium silicate slag 64 parts, 25 parts of flyash,
Silica flour 11 parts.Wherein, calcium silicate slag is that (a kind of pre-desiliconizing with high alumina fly ash synchronizes to reduce according to patent application CN103332710A
The method of alkali content) method described in embodiment 1, aluminous fly-ash is implemented pre-desiliconizing and uses soda lime sintering process to extract
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
Thering is provided with research and development centre, silica flour particle diameter is less than 200 mesh, and SiO in silica flour2Content is not less than 85%.
By said ratio, make CaO and SiO in compound2Molar ratio be about 0.95.
To be milled to 320 mesh after above-mentioned raw materials mix homogeneously, and mix homogeneously with the water about 800 weight portions (i.e. water with
The mass ratio of compound is about 8:1), it is injected in reactor, is 1.9MPa at pressure, under conditions of temperature is about 210 DEG C
Reacting 5 hours, be then 1.7MPa at pressure, temperature continues reaction 3 hours under conditions of being about 205 DEG C, obtains calcium silicates
Slurry.
Above-mentioned calcium silicates slurry pump from reactor is transported to medial launder, in medial launder, then adds glass fibre and water
Glass, and the quality of glass fibre and waterglass accounts for about the 3% and about 2% of mixture quality respectively, to be mixed uniformly after
Obtain mixed slurry, mixed slurry is pumped into pressure filtration molding machine, under the pressure of 5000t, keep molding in 1.5 minutes, the most rearmounted
Toasting about 18 hours in tunnel cave, controlling baking temperature is about 80 DEG C, obtains tobermorite type adiabator.
X-ray diffraction method (XRD) is used to analyze the dominant of the tobermorite type adiabator obtained in the present embodiment
Phase, it is mainly composed of tobermorite race hydrated calcium silicate crystal (5CaO 6SiO2·5H2O), as shown in Figure 2.
After testing, the density of the calcium silicate insulation obtained in the present embodiment is 190kg/m3, heat conduction system at 400 DEG C
Number 0.081W/ (m k), comprcssive strength 1.0MPa, rupture strength 0.64Mpa, maximum operation (service) temperature 650 DEG C, fire protecting performance A1
Level, has reached the standard-required of " GB/T10699-2015I heat-insulating calcium silicate product ", can substitute current tobermorite type
Adiabator.
Last it is noted that various embodiments above is only in order to illustrate technical scheme, it is not intended to limit；To the greatest extent
The present invention has been described in detail by pipe with reference to foregoing embodiments, it will be understood by those within the art that: it depends on
So the technical scheme described in foregoing embodiments can be modified, or the most some or all of technical characteristic is entered
Row equivalent；And these amendments or replacement, do not make the essence of appropriate technical solution depart from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. a tobermorite type adiabator, its raw material includes compound, reinforcing fiber, waterglass, it is characterised in that institute
State compound and include calcium silicate slag, flyash and silicon source supplement, CaO and SiO in described compound2Molar ratio be 0.79～
0.96, the quality of described reinforcing fiber and described waterglass accounts for the 2～10% and 0.5～3% of described mixture quality respectively.
Tobermorite type adiabator the most according to claim 1, it is characterised in that the particle diameter of described compound is
250～400 mesh.
Tobermorite type adiabator the most according to claim 1 and 2, it is characterised in that described calcium silicate slag is to use
Pre-desiliconizing soda lime sintering process extracts the by-product after aluminium oxide from flyash.
4. according to the tobermorite type adiabator described in any one of claim 1-3, it is characterised in that described compound bag
Include: calcium silicate slag 50～80 weight portion, flyash 10～30 weight portion, silicon source supplement 5～15 weight portion.
Tobermorite type adiabator the most according to claim 1 and 2, it is characterised in that described silicon source supplement are
One or more in silica flour, kieselguhr, bentonite, Cab-O-sil.
Tobermorite type adiabator the most according to claim 1 and 2, it is characterised in that described reinforcing fiber is glass
One or more in glass fiber, wood fibre, polypropylene, polyamide.
7. according to the tobermorite type adiabator described in any one of claim 1-6, it is characterised in that described Tuo Beimo comes
Stone-type adiabator is to make described compound issue raw hydrothermal synthesis reaction system with the mixed system of water in heating and pressurized conditions
The calcium silicates slurry become, and through the most compressing and obtain.
8. the preparation method of the tobermorite type adiabator described in any one of claim 1-7, it is characterised in that include as
Lower manufacturing step:
Described compound and water with mass ratio as 1:4～10 are mixed, under temperature 190～250 DEG C, pressure 1.3～4.0MPa
React more than 4 hours, obtain calcium silicates slurry；
Above-mentioned calcium silicates slurry is mixed with described reinforcing fiber and waterglass, obtains mixed slurry；
By compressing for above-mentioned mixed slurry, it is placed at 60～105 DEG C 16～24 hours, obtains described tobermorite type adiabatic
Material.
Preparation method the most according to claim 8, it is characterised in that also include that described compound is machined to particle diameter is
250～400 mesh.
Preparation method the most according to claim 8, it is characterised in that by described compound and water with mass ratio as 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 |
|---|---|
| CN106187052A true CN106187052A (en) | 2016-12-07 |
| CN106187052B CN106187052B (en) | 2018-07-13 |
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| CN106747205A (en) * | 2017-01-03 | 2017-05-31 | 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 kind of method that utilization calcium silicate slag prepares eakleite |
| CN106966402A (en) * | 2017-03-24 | 2017-07-21 | 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 | The method that tobermorite is prepared using calcium silicate slag |
| CN108046824A (en) * | 2018-01-20 | 2018-05-18 | 南京理工大学 | High-strength silicate haydite of maintenance and preparation method thereof in steel fibre toughening |
| CN108069694A (en) * | 2017-12-13 | 2018-05-25 | 中南大学 | A kind of calcium silicate board and preparation method thereof |
| CN109571715A (en) * | 2018-10-12 | 2019-04-05 | 佛山市高明区安承升降装备研究院 | Elevator and preparation method thereof |
| 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 |
| CN113185251A (en) * | 2021-05-19 | 2021-07-30 | 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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| CN106966402A (en) * | 2017-03-24 | 2017-07-21 | 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 | The method that tobermorite is prepared using calcium silicate slag |
| CN108069694A (en) * | 2017-12-13 | 2018-05-25 | 中南大学 | A kind of calcium silicate board and preparation method thereof |
| 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 |
| CN108046824A (en) * | 2018-01-20 | 2018-05-18 | 南京理工大学 | High-strength silicate haydite of maintenance and preparation method thereof in steel fibre toughening |
| CN109571715A (en) * | 2018-10-12 | 2019-04-05 | 佛山市高明区安承升降装备研究院 | Elevator and preparation method thereof |
| 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 |
| CN113185251A (en) * | 2021-05-19 | 2021-07-30 | 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 |
| CN117361915A (en) * | 2023-08-16 | 2024-01-09 | 浙江大学 | Method for preparing hydrothermal curing body based on relative content of active calcium and active silicon |
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