CN106396415A - Method for preparation of high strength foam glass based on blast furnace slag - Google Patents
Method for preparation of high strength foam glass based on blast furnace slag Download PDFInfo
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- CN106396415A CN106396415A CN201610746109.9A CN201610746109A CN106396415A CN 106396415 A CN106396415 A CN 106396415A CN 201610746109 A CN201610746109 A CN 201610746109A CN 106396415 A CN106396415 A CN 106396415A
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- granule
- foam glass
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- blast furnace
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C11/00—Multi-cellular glass ; Porous or hollow glass or glass particles
- C03C11/007—Foam glass, e.g. obtained by incorporating a blowing agent and heating
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
- C03C1/002—Use of waste materials, e.g. slags
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Compositions (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Belonging to the technical field of foam glass preparation, the invention discloses a method for preparation of high strength foam glass based on blast furnace slag. The method includes: firstly calcining blast furnace slag, then conducting grinding and sieving, collecting the sieved particles and performing mixing with an ammonium bicarbonate solution, then conducting microwave heating and filtering, freezing the filter residue and then conducting crushing and sieving so as to obtain sieved particles, then cleaning and air drying abandoned sheet glass and performing crushing and ball milling, collecting the sieved abandoned sheet glass particles and conducting mixing and ball milling with the aforementioned sieved particles, borax and the like, then putting a ball milling mixture into a foaming mould and conducting calcination casting, and finally collecting the sintered body, i.e. the high strength foam glass. The foam glass prepared by the method provided by the invention has the advantages of high strength, good weatherability, difficult cracking, low thermal conductivity, and excellent thermal insulating performance, and is a thermal insulation material with superior performance.
Description
Technical field
The invention discloses a kind of method that high-intensity foam glass is prepared based on blast furnace slag, belong to foam glass preparation skill
Art field.
Background technology
With country, the pay attention to day by day of Building Energy Saving environmental issue and the people are wanted to residential architecture quality
The rapid raising asked, house is safeguarded, environment-friendly insulating energy-conservation has stepped up a new step, house not only reliability to be had
And durability, more to have enough weatherabilities.
Foam glass is a kind of thermal insulation of new superior performance（Cold insulation）, sound absorption, moistureproof, fire prevention, high-strength lightweight build
Build material and ornament materials, be also called cellular glass.Its internal spilehole being full of countless openings or remaining silent, the area of pore accounts for
The 80%～90% of cumulative volume, pore size is 1～2 millimeter.The primary raw material of foam glass is typically cullet, it is possible to use acid
Property slag class material, such as volcanic ash, Pumex, perlite, obsidian, blast-furnace cinder etc..
Because foam glass has protection against the tide, fire prevention, antiseptical effect, to have Long-Term Properties not bad for glass material in addition
The advantage changed is so as in thermal insulation, deep cooling, underground, outdoor, inflammable, easy to be damp and have under the severe rugged environments such as chemical erosion and benefit from again
Family is favored, and is referred to as environmental type adiabator by user.
According to the various performances of foam glass, it can be applied to each department of architectural engineering as heat-barrier material,
For shipbuilding, chemical industry, low temperature and high-temperature technology.White and stained glass are also used as sound-absorbing and ornament materials use.In production
Waste material -- foam glass powder and particle are also used as decorating the inserts of lightweight concrete and other purposes.According to purposes not
With the foam glass product using corresponding technique productions can be divided into four big class, i.e. heat insulation foam glass, sound-absorbing decoration foam glass
Glass, facing foam glass and granulate foam glass.
Prior art preparation foam glass, product intensity is not high enough, and stability is not high, and hyperthermia and superheating easily bursts,
And at low ambient temperatures, the heat conductivity of foam glass is not low, heat-insulating property is poor, greatly limit the application of foam glass
Scope.
Content of the invention
Present invention mainly solves technical problem：For the preparation of current technology foam glass, product intensity is not high enough,
Stability is not high, the problem that hyperthermia and superheating easily bursts, and provides a kind of method preparing high-intensity foam glass based on blast furnace slag,
The method is milled after calcining blast furnace slag first and is sieved, and collects the granule that sieves and mixes with ammonium bicarbonate soln, subsequent microwave heating
And filter, pulverize and sieve after filtering residue is freezed, must sieve granule, after subsequently the cleaning of discarded plate glass being air-dried, pulverize ball milling,
Collect the discarded plate glass granule after sieving and the mixing and ball milling such as the above-mentioned granule that sieves, Borax, subsequently ball-milled mixtures are put
Enter calcining casting mold in foaming mould, finally collect sintered body and be high-intensity foam glass, the foam glass that the present invention is obtained is strong
Degree is high, and finished product good weatherability is difficult to burst, is a kind of heat preserving and insulating material of superior performance.
In order to solve above-mentioned technical problem, the technical solution adopted in the present invention is：
（1）In mass ratio 1:3, take blast furnace slag and mass fraction 10% sodium hydroxide solution, put in blender, with 110r/min
Stirring 30～36min, adds the Perfluorooctanoic acid potassium salt of blast furnace slag quality 0.4～0.8%, continues stirring 30～40min, subsequently will
Mixture is placed in ultrasonator, filters, filtering residue is placed in calcining furnace, design temperature is after sonic oscillation 10～15min
500～600 DEG C, calcine 32～45min；
（2）Cool to room temperature with the furnace after above-mentioned calcining terminates, calcined material taken out to put in mill and mills, cross 200 mesh sieves,
Collection is sieved granule, and in mass ratio 1:3～1:2, take the granule that sieves to be 7% ammonium bicarbonate soln with mass fraction, mix homogeneously,
It is placed in microwave oven, is heated to 90～95 DEG C, be incubated 1～2h, filtered while hot, filtering residue is placed in liquid nitrogen freezers, if
Constant temperature degree is -40～-30 DEG C, freezes 50～60s, is subsequently pulverized frozen material, crosses 200 mesh sieves, collects the granule that sieves, standby
With；
（3）Take discarded plate glass to put in ultrasonic washing unit to be carried out, subsequently discarded plate glass is put into air-dry machine
In air-dry, place in glass pulverizer pulverize, pulverized particles are put in ball mill, by ratio of grinding media to material 3:1, add steel ball to carry out
Ball milling, ball milling thing is crossed 150 mesh sieves, collects the discarded plate glass granule after sieving；
（4）Count by weight, take 60～65 parts above-mentioned sieve after discarded plate glass granule, 32～35 parts of steps（2）Standby
Sieve granule, 9～11 parts of sodium carbonate, 1～2 part of Borax and 0.8～1.4 part of sodium phosphate is put in ball grinder, and ball milling 4～
6h, subsequently puts into ball-milled mixtures in foaming mould, is placed in heating furnace, and design temperature is 450～460 DEG C, preheats 30
～35min, then it is warming up to 730～760 DEG C with 12 DEG C/min, it is cooled to 610～630 DEG C after insulation 40～45min, continue insulation
45～50min, subsequently naturally cools to room temperature, collects sintered body, you can obtain high-intensity foam glass.
The application process of the present invention is：Fragment of brick size made by the foam glass that the present invention is obtained, will using cement mortar
It is bondd with external wall basic unit, to be onstructed finish, maintenance 1～3 day.After testing, the foam glass that the present invention is obtained is strong
Degree is high, and its comprcssive strength reaches 1.8～2.6MPa, and rupture strength reaches 1.2～1.6MPa, and heat conductivity is low, in 0.04 W/（m·K）
Hereinafter, heat conductivility is stable, high insulating effect, and the foam glass good weatherability of the present invention, can be in -295～550 DEG C of temperature models
Enclose interior use.
The invention has the beneficial effects as follows：
（1）, it is easy to operation, the prepared foam glass porosity is high and is evenly distributed, and also has for the preparation process is simple of the present invention
There is high intensity；
（2）The foam glass material good stability that the present invention is obtained, has good weatherability, is difficult to burst, and heat conductivity
Low, good heat insulating.
Specific embodiment
First in mass ratio 1:3, take blast furnace slag and mass fraction 10% sodium hydroxide solution, put in blender, with
110r/min stirs 30～36min, adds the Perfluorooctanoic acid potassium salt of blast furnace slag quality 0.4～0.8%, continue stirring 30～
40min, subsequently mixture is placed in ultrasonator, filters, filtering residue is placed in calcining furnace after sonic oscillation 10～15min
In, design temperature is 500～600 DEG C, calcines 32～45min；Cool to room temperature with the furnace after above-mentioned calcining terminates, by calcined material
Taking-up is put in mill and is milled, and crosses 200 mesh sieves, collects and sieves granule, and in mass ratio 1:3～1:2, take sieve granule and quality
Fraction is 7% ammonium bicarbonate soln, and mix homogeneously is placed in microwave oven, is heated to 90～95 DEG C, is incubated 1～2h, while hot
Filter, filtering residue is placed in liquid nitrogen freezers, design temperature is -40～-30 DEG C, freeze 50～60s, subsequently frozen material is carried out
Pulverize, cross 200 mesh sieves, collect the granule that sieves, standby；Subsequently take discarded plate glass to put in ultrasonic washing unit and carry out clearly
Wash, subsequently put into discarded plate glass in air-dry machine and air-dry, place in glass pulverizer and pulverize, pulverized particles are put into ball
In grinding machine, by ratio of grinding media to material 3:1, add steel ball to carry out ball milling, ball milling thing is crossed 150 mesh sieves, collect the discarded flat board glass after sieving
Glass granule；Count by weight again, take 60～65 parts above-mentioned sieve after discarded plate glass granule, 32～35 parts of above-mentioned steps
The standby granule that sieves, 9～11 parts of sodium carbonate, 1～2 part of Borax and 0.8～1.4 part of sodium phosphate are put in ball grinder, and ball milling 4～
6h, subsequently puts into ball-milled mixtures in foaming mould, is placed in heating furnace, and design temperature is 450～460 DEG C, preheats 30
～35min, then it is warming up to 730～760 DEG C with 12 DEG C/min, it is cooled to 610～630 DEG C after insulation 40～45min, continue insulation
45～50min, subsequently naturally cools to room temperature, collects sintered body, you can obtain high-intensity foam glass.
Example 1
First in mass ratio 1:3, take blast furnace slag and mass fraction 10% sodium hydroxide solution, put in blender, with 110r/min
Stirring 30min, adds the Perfluorooctanoic acid potassium salt of blast furnace slag quality 0.4%, continues stirring 30min, is subsequently placed in mixture ultrasonic
In agitator, filter after sonic oscillation 10min, filtering residue is placed in calcining furnace, design temperature is 500 DEG C, calcine 32min；?
Above-mentioned calcining cools to room temperature with the furnace after terminating, and calcined material is taken out to put in mill and mills, and crosses 200 mesh sieves, and collection is sieved
Granule, in mass ratio 1:3, take the granule that sieves to be 7% ammonium bicarbonate soln with mass fraction, mix homogeneously, it is placed in microwave oven
In, it is heated to 90 DEG C, is incubated 1h, filtered while hot, filtering residue is placed in liquid nitrogen freezers, design temperature is -40 DEG C, freeze 50s,
Subsequently frozen material is pulverized, crossed 200 mesh sieves, collected the granule that sieves, standby；Discarded plate glass is subsequently taken to put into ultrasound wave
It is carried out in cleaning machine, subsequently puts into discarded plate glass in air-dry machine and air-dry, place in glass pulverizer and pulverize, will
Pulverized particles are put in ball mill, by ratio of grinding media to material 3:1, add steel ball to carry out ball milling, ball milling thing is crossed 150 mesh sieves, collection is sieved
Discarded plate glass granule afterwards；Count by weight again, take 60 parts above-mentioned sieve after discarded plate glass granule, on 32 parts
State the standby granule that sieves of step, 9 parts of sodium carbonate, 1 part of Borax and 0.8 part of sodium phosphate and put in ball grinder, ball milling 4h, subsequently will
Ball-milled mixtures are put in foaming mould, are placed in heating furnace, design temperature be 450 DEG C, preheat 30min, then with 12 DEG C/
Min is warming up to 730 DEG C, is cooled to 610 DEG C after insulation 40min, continues insulation 45min, subsequently naturally cools to room temperature, collects and burn
Knot body, you can obtain high-intensity foam glass.
This example operation is easy, and during use, the foam glass that the present invention is obtained makes fragment of brick size, using cement mortar
It is bondd with external wall basic unit, to be onstructed finish, maintenance 1 day.After testing, the foam glass intensity that the present invention is obtained
Height, its comprcssive strength reaches 1.8MPa, and rupture strength reaches 1.2MPa, and heat conductivity is low, in 0.038 W/（m·K）, heat conductivility is steady
Fixed, high insulating effect, and the foam glass good weatherability of the present invention, can use in -295 DEG C of temperature ranges.
Example 2
First in mass ratio 1:3, take blast furnace slag and mass fraction 10% sodium hydroxide solution, put in blender, with 110r/min
Stirring 33min, adds the Perfluorooctanoic acid potassium salt of blast furnace slag quality 0.6%, continues stirring 35min, is subsequently placed in mixture ultrasonic
In agitator, filter after sonic oscillation 13min, filtering residue is placed in calcining furnace, design temperature is 550 DEG C, calcine 39min；?
Above-mentioned calcining cools to room temperature with the furnace after terminating, and calcined material is taken out to put in mill and mills, and crosses 200 mesh sieves, and collection is sieved
Granule, in mass ratio 1:2.5, take the granule that sieves to be 7% ammonium bicarbonate soln with mass fraction, mix homogeneously, it is placed in microwave heating
In stove, it is heated to 93 DEG C, is incubated 1.5h, filtered while hot, filtering residue is placed in liquid nitrogen freezers, design temperature is -35 DEG C, freezing
Frozen material is subsequently pulverized by 55s, crosses 200 mesh sieves, collects the granule that sieves, standby；Discarded plate glass is subsequently taken to put into super
It is carried out in sound wave cleaning machine, subsequently put into discarded plate glass in air-dry machine and air-dry, place into powder in glass pulverizer
Broken, pulverized particles are put in ball mill, by ratio of grinding media to material 3:1, add steel ball to carry out ball milling, ball milling thing is crossed 150 mesh sieves, collect
Discarded plate glass granule after sieving；Count by weight again, take 63 parts above-mentioned sieve after discarded plate glass granule, 34
The standby granule that sieves of part above-mentioned steps, 10 parts of sodium carbonate, 1.5 parts of Boraxs and 1.1 parts of sodium phosphates are put in ball grinder, ball milling
5h, subsequently puts into ball-milled mixtures in foaming mould, is placed in heating furnace, and design temperature is 455 DEG C, preheats 33min, then
It is warming up to 745 DEG C with 12 DEG C/min, after insulation 43min, is cooled to 620 DEG C, continue insulation 48min, subsequently naturally cool to room
Temperature, collects sintered body, you can obtain high-intensity foam glass.
This example operation is easy, and during use, the foam glass that the present invention is obtained makes fragment of brick size, using cement mortar
It is bondd with external wall basic unit, to be onstructed finish, maintenance 2 days.After testing, the foam glass intensity that the present invention is obtained
Height, its comprcssive strength reaches 2.2MPa, and rupture strength reaches 1.4MPa, and heat conductivity is low, in 0.035W/（m·K）, heat conductivility is steady
Fixed, high insulating effect, and the foam glass good weatherability of the present invention, can use in 150 DEG C of temperature ranges.
Example 3
First in mass ratio 1:3, take blast furnace slag and mass fraction 10% sodium hydroxide solution, put in blender, with 110r/min
Stirring 36min, adds the Perfluorooctanoic acid potassium salt of blast furnace slag quality 0.8%, continues stirring 40min, is subsequently placed in mixture ultrasonic
In agitator, filter after sonic oscillation 15min, filtering residue is placed in calcining furnace, design temperature is 600 DEG C, calcine 45min；?
Above-mentioned calcining cools to room temperature with the furnace after terminating, and calcined material is taken out to put in mill and mills, and crosses 200 mesh sieves, and collection is sieved
Granule, in mass ratio 1:2, take the granule that sieves to be 7% ammonium bicarbonate soln with mass fraction, mix homogeneously, it is placed in microwave oven
In, it is heated to 95 DEG C, is incubated 2h, filtered while hot, filtering residue is placed in liquid nitrogen freezers, design temperature is -30 DEG C, freeze 60s,
Subsequently frozen material is pulverized, crossed 200 mesh sieves, collected the granule that sieves, standby；Discarded plate glass is subsequently taken to put into ultrasound wave
It is carried out in cleaning machine, subsequently puts into discarded plate glass in air-dry machine and air-dry, place in glass pulverizer and pulverize, will
Pulverized particles are put in ball mill, by ratio of grinding media to material 3:1, add steel ball to carry out ball milling, ball milling thing is crossed 150 mesh sieves, collection is sieved
Discarded plate glass granule afterwards；Count by weight again, take 65 parts above-mentioned sieve after discarded plate glass granule, on 35 parts
State the standby granule that sieves of step, 11 parts of sodium carbonate, 2 parts of Boraxs and 1.4 parts of sodium phosphates and put in ball grinder, ball milling 6h, subsequently
Ball-milled mixtures are put in foaming mould, are placed in heating furnace, design temperature be 460 DEG C, preheat 35min, then with 12 DEG C/
Min is warming up to 760 DEG C, is cooled to 630 DEG C after insulation 45min, continues insulation 50min, subsequently naturally cools to room temperature, collects and burn
Knot body, you can obtain high-intensity foam glass.
This example operation is easy, and during use, the foam glass that the present invention is obtained makes fragment of brick size, using cement mortar
It is bondd with external wall basic unit, to be onstructed finish, maintenance 3 days.After testing, the foam glass intensity that the present invention is obtained
Height, its comprcssive strength reaches 2.6MPa, and rupture strength reaches 1.6MPa, and heat conductivity is low, in 0.032 W/（m·K）, heat conductivility is steady
Fixed, high insulating effect, and the foam glass good weatherability of the present invention, can use in 550 DEG C of temperature ranges.
Claims (1)
1. a kind of the method for high-intensity foam glass is prepared it is characterised in that concrete preparation process is based on blast furnace slag：
（1）In mass ratio 1:3, take blast furnace slag and mass fraction 10% sodium hydroxide solution, put in blender, with 110r/min
Stirring 30～36min, adds the Perfluorooctanoic acid potassium salt of blast furnace slag quality 0.4～0.8%, continues stirring 30～40min, subsequently will
Mixture is placed in ultrasonator, filters, filtering residue is placed in calcining furnace, design temperature is after sonic oscillation 10～15min
500～600 DEG C, calcine 32～45min；
（2）Cool to room temperature with the furnace after above-mentioned calcining terminates, calcined material taken out to put in mill and mills, cross 200 mesh sieves,
Collection is sieved granule, and in mass ratio 1:3～1:2, take the granule that sieves to be 7% ammonium bicarbonate soln with mass fraction, mix homogeneously,
It is placed in microwave oven, is heated to 90～95 DEG C, be incubated 1～2h, filtered while hot, filtering residue is placed in liquid nitrogen freezers, if
Constant temperature degree is -40～-30 DEG C, freezes 50～60s, is subsequently pulverized frozen material, crosses 200 mesh sieves, collects the granule that sieves, standby
With；
（3）Take discarded plate glass to put in ultrasonic washing unit to be carried out, subsequently discarded plate glass is put into air-dry machine
In air-dry, place in glass pulverizer pulverize, pulverized particles are put in ball mill, by ratio of grinding media to material 3:1, add steel ball to carry out
Ball milling, ball milling thing is crossed 150 mesh sieves, collects the discarded plate glass granule after sieving；
（4）Count by weight, take 60～65 parts above-mentioned sieve after discarded plate glass granule, 32～35 parts of steps（2）Standby
Sieve granule, 9～11 parts of sodium carbonate, 1～2 part of Borax and 0.8～1.4 part of sodium phosphate is put in ball grinder, and ball milling 4～
6h, subsequently puts into ball-milled mixtures in foaming mould, is placed in heating furnace, and design temperature is 450～460 DEG C, preheats 30
～35min, then it is warming up to 730～760 DEG C with 12 DEG C/min, it is cooled to 610～630 DEG C after insulation 40～45min, continue insulation
45～50min, subsequently naturally cools to room temperature, collects sintered body, you can obtain high-intensity foam glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610746109.9A CN106396415A (en) | 2016-08-29 | 2016-08-29 | Method for preparation of high strength foam glass based on blast furnace slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610746109.9A CN106396415A (en) | 2016-08-29 | 2016-08-29 | Method for preparation of high strength foam glass based on blast furnace slag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106396415A true CN106396415A (en) | 2017-02-15 |
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ID=58004109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610746109.9A Pending CN106396415A (en) | 2016-08-29 | 2016-08-29 | Method for preparation of high strength foam glass based on blast furnace slag |
Country Status (1)
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| CN (1) | CN106396415A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102515551A (en) * | 2011-12-01 | 2012-06-27 | 南京工业大学 | Porous foam glass carrier for rapid mass transfer biological fluidized bed and preparation method and application thereof |
| CN103241955A (en) * | 2013-04-27 | 2013-08-14 | 四川大学 | Method for preparing microcrystalline foam glass by using high titanium blast furnace slag and waste glass powder |
-
2016
- 2016-08-29 CN CN201610746109.9A patent/CN106396415A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102515551A (en) * | 2011-12-01 | 2012-06-27 | 南京工业大学 | Porous foam glass carrier for rapid mass transfer biological fluidized bed and preparation method and application thereof |
| CN103241955A (en) * | 2013-04-27 | 2013-08-14 | 四川大学 | Method for preparing microcrystalline foam glass by using high titanium blast furnace slag and waste glass powder |
Non-Patent Citations (1)
| Title |
|---|
| 管昊等: ""含钛高炉渣的湿法提钛研究进展"", 《南京师范大学学报（工程技术版）》 * |
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Application publication date: 20170215 |
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