CN106630648A - Method for producing foamed glass by melting blast furnace slag - Google Patents
Method for producing foamed glass by melting blast furnace slag Download PDFInfo
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- CN106630648A CN106630648A CN201611160309.2A CN201611160309A CN106630648A CN 106630648 A CN106630648 A CN 106630648A CN 201611160309 A CN201611160309 A CN 201611160309A CN 106630648 A CN106630648 A CN 106630648A
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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
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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
- 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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Abstract
The invention discloses a method for producing foamed glass by melting blast furnace slag. The method comprises the following steps: using the blast furnace slag as a main raw material to produce the foamed glass, wherein the blast furnace slag is metallurgical furnace slag produced online in the ironmaking process of a blast furnace; after acquiring the blast furnace slag from a slag discharge opening of the blast furnace, directly mixing with other raw materials in a high-temperature molten state; finally preparing the foamed glass. The method uses melting blast furnace slag with a high content of glass body as the main raw material, makes full use of residual heat of the melting blast furnace slag and secondary resources, and achieves purposes of energy conservation and environmental friendliness.
Description
Technical field
The present invention relates to a kind of blast furnace slag recovery and utilization technology, particularly relates to a kind of molten blast furnace slag production foamed glass
Method.
Background technology
During blast furnace process, the slag that one ton of pig iron typically produces 300～600kg is often smelted, even for ferrous grade
65% or so quality raw materials, the quantity of slag also reaches 185～250kg/t, and the blast furnace slag weight of so annual China has more than one hundred million tons.
At present, blast furnace slag is mainly for the production of breeze, to substitute cement.As cement price drops, blast furnace slag produces the utilization of breeze
Added value declines, and many R＆D institutions and enterprise are all in the other utilization approach of actively research blast furnace slag.
Foamed glass also known as cellular glass or foam glass, be a kind of porosity more than 90%, by uniform pore group
Into heat-protecting glass.Foam glass board has that lightweight, thermal conductivity factor is little, water absorption rate is little, does not burn, do not go mouldy because of it, intensity
The advantages of high, corrosion-resistant, nontoxic, physical and chemical performance is stable is widely used in oil, chemical industry, underground engineering, defence and military
Deng field, heat-insulated, insulation, cold insulation, the effect of sound-absorbing can be reached, the heat-insulated of civil buildings exterior wall and roof is also widely used in addition
Insulation, with requirement more and more higher of the mankind to environmental protection, foam glass is exhausted by the senior body of wall for becoming Civil Buildings in Cities of China
Hot material and roofing insulation material.
Foamed glass raw material generally based on the material rich in glass phase such as cullet, flyash, nonmetallic mineral, will
The broken ball milling Jing of its mixing is weighed to heat-resistance stainless steel diaphragm capsule into foamable in foaming kiln, moves back by artificial demoulding annealing kiln
What fire was prepared from into techniques such as glass blanks.The material composition of foamed glass production is different, and foamed time and temperature be not easily-controllable
System, affects the quality of foamed glass.Traditional foamed glass production technology needs to be sintered with diaphragm capsule, the artificial demoulding, annealed kiln
Cool down, the shortcoming of this technique is：A large amount of labours are expended, diaphragm capsule waste is big, and low production efficiency causes production cost big
Width is improved, and product is difficult to promote on a large scale.
The Chinese invention patent application of Application No. 201410369822.7 discloses a kind of fusion method and prepares blast furnace slag base
The method of foam glass, the method mixes in proportion the weight portion of blast furnace slag 40～90 and the weight portion of quartz sand 10～40,
It is placed in after grinding in container, and melts 0.5～8 hour in 1100～1600 DEG C of melting furnace；The melt for obtaining directly is poured
Casting is passed through gas and forms pore while cast molding on 900～1300 DEG C of mold heat by tracheae, and is incubated 0.5
Room temperature is cooled to after～8 hours, foam glass is obtained after the demoulding；Foam glass to obtaining cut, polished, polish after
To final products.Foam glass obtained by the method need not introduce the additives such as any foaming agent, foam stabilizer, save production
Cost；Preparation process is cooled down again after raw materials of slag need not being added into heat fusing, water quenching and is sintered, and saves the energy, is simplified
Production process.
In said method, the basic material such as blast furnace slag enters flow process with normal temperature state, needs to carry out in production plus heat fusing,
Melt temperature reaches more than 1000 DEG C, therefore energy consumption is higher, and production cost is larger.
The content of the invention
It is an object of the invention to provide a kind of molten blast furnace slag production foamed glass that can significantly reduce energy consumption
Method, be directly produced foamed glass using the molten blast furnace slag for taking from tap cinder mouth.
For achieving the above object, the method that molten blast furnace slag provided by the present invention produces foamed glass, it is with blast furnace slag
Used as a kind of main material production foamed glass, the blast furnace slag is the online metallurgical slag for producing during blast furnace ironmaking, from
After tap cinder mouth is obtained, directly mixed with other raw materials with high temperature fused state, foamed glass is finally obtained.
Preferably, the initial temperature of the blast furnace slag is at 900 DEG C ± 50 DEG C.
Preferably, the method adopts the raw material of following mass parts：26～70 parts of blast furnace slag；29～70 parts of glass；Foaming agent
0.1～3.9 part；0.1～0.9 part of foam stabilizer；0.1～0.9 part of flux.
Preferably, the foaming agent is the one or more combination in dolomite, limestone, soda ash, coke, carborundum,
Granularity (in the present invention, more than 200 mesh refers to that particle can cross 200 mesh standard sieves) in terms of standard screen mesh number more than 200 mesh.
Preferably, the foam stabilizer is phosphate, borate, Al2O3、ZnO、ZrO2In one or more combination, particle
Degree is in terms of standard screen mesh number more than 200 mesh.
Preferably, the flux is prodan, borax, ice crystal, calcium sulfate, MnO2In one or more groups
Close, granularity is in terms of standard screen mesh number more than 200 mesh.
Preferably, the glass is pulverulence, and granularity is in terms of standard screen mesh number more than 200 mesh.
Preferably, the method specifically includes following step：1) 29～70 parts of glass by mass, foaming agent are accurately weighed
0.1～3.9 part, 0.1～0.9 part of foam stabilizer, 0.1～0.9 part of flux is well mixed each component, obtains foamed glass
First raw material；2) 26～70 parts of molten blast furnace slags are taken in heating furnace and by step 1 from tap cinder mouth) at the beginning of the foamed glass that obtains
Raw material is sprayed in heating furnace, is incubated 7～15min；Again by the temperature adjustment in heating furnace to 900～1000 DEG C, insulation 12～
20min；Make foamed glass raw material sequentially pass through in heating furnace foaming and annealing process obtain sinter puffing foaming heating thing；3)
By step 2) the sintering puffing foaming that obtains heating thing takes out from heating furnace, and foamed glass is obtained final product after natural cooling.The method
With molten blast furnace slag and glass as primary raw material, foaming agent, foam stabilizer and flux are scientifically added, simplify production work
Skill, the drawbacks of improve traditional foamed glass complex manufacturing.
Preferably, the method specifically includes following step：1) 45～60 parts of glass by mass, foaming agent are accurately weighed
1.5～3.0 parts, 0.3～0.7 part of foam stabilizer, 0.4～0.8 part of flux is well mixed each component, obtains foamed glass
First raw material；2) 35～65 parts of molten blast furnace slags are taken in heating furnace and by step 1 from tap cinder mouth) at the beginning of the foamed glass that obtains
Raw material is sprayed in heating furnace, is incubated 8～12min；Again by the temperature adjustment in heating furnace to 950～990 DEG C, insulation 15～
18min；Make foamed glass raw material sequentially pass through in heating furnace foaming and annealing process obtain sinter puffing foaming heating thing；3)
By step 2) the sintering puffing foaming that obtains heating thing takes out from heating furnace, and foamed glass is obtained final product after natural cooling.
The beneficial effects of the present invention is：
1) the method makes full use of the waste heat of molten blast furnace slag with the high molten blast furnace slag of vitreum content as primary raw material
And secondary resource, while energy-conserving and environment-protective, foamed glass production cost per ton reduces about 40 yuan, decreases by 10% or so；
2) add speed that bulk density can be obtained for 300～1300kg/m by controlling heating furnace in-furnace temperature and material3、
Water absorption rate is the foamed glass that 10～110%, pore size is 1.2 μm～420 μm；
3) foamed glass obtained by has light porous, porosity high and the fine and smooth uniform, water retention of hole is high, adsorb appearance
The features such as measuring big, can be widely applied to various assembled architectures and sponge urban construction, and its is lightweight to be easy to construction, enhances resistance to
Pinking, mitigates native stone to the pressure of structure and suppresses the sinking of building on weak domain.
Specific embodiment
With reference to specific embodiment, the present invention is described in further detail.
Embodiment 1
The method that molten blast furnace slag produces foamed glass, comprises the steps：
1) 70 parts of glass powder by mass is accurately weighed, 0.1 part of foaming agent, 0.2 part of foam stabilizer, 0.1 part of flux is incited somebody to action
Each component is well mixed, and obtains foamed glass just raw material；
2) 29 parts of molten blast furnace slags are taken in heating furnace from tap cinder mouth, is injected to heating furnace inside holding 8min；Again will
Temperature adjustment in heating furnace is incubated 15min to 1000 DEG C；Foamed glass raw material is set foaming to be sequentially passed through in heating furnace, is moved back
Fire obtains sintering puffing foaming heating thing；
3) by step 2) the sintering puffing foaming that obtains heating thing to take out obtained final product after natural cooling from heating furnace and piles up close
Spend for 300kg/m3, water absorption rate be foamed glass that 110%, pore size is 25 μm.
In above step, the blast furnace slag is the metallurgical slag produced during blast furnace ironmaking, directly from tap cinder mouth
Obtain, at 900 DEG C ± 50 DEG C, the glass powder is obtained its temperature control for flint glass Jing ball mill grindings, granularity is marking
Quasi- grit number meter is more than 200 mesh.The foaming agent is dolomite, and granularity is more than 250 mesh.The foam stabilizer is phosphoric acid
Salt, granularity is more than 250 mesh.The flux is prodan, and granularity is more than 250 mesh.
The foamed glass obtained using the present embodiment has that proportion is little, water absorbing and retaining properties strong and its pore size makes it have
Excellent gas permeability, thus can, chesson antibacterial with insect prevention, the characteristics of improve soil texture.By sending out that the present embodiment is obtained
Bulb glass is broken into 1～4mm graininess, clay, dyskinetic soil, saline-alkali land soil conditioner etc. is applicable to, while being applied to
Urban afforestation, roof greening, greening of parking yard, indoor gardening；The agriculture greening fields such as desert, deserted mountain transformation.
Embodiment 2
The method that molten blast furnace slag produces foamed glass, comprises the steps：
1) 29 parts of glass powder by mass is accurately weighed, 3.9 parts of foaming agent, 0.3 part of foam stabilizer, 0.8 part of flux is incited somebody to action
Each component is well mixed, and obtains foamed glass just raw material；
2) take 70 parts of molten blast furnace slags in heating furnace from tap cinder mouth and by step 1) foamed glass that obtains is just former
Material is injected in heating furnace, is incubated 7min；Again by the temperature adjustment in heating furnace to 950 DEG C, 20min is incubated；Make foamed glass
Raw material sequentially passes through foaming in heating furnace and annealing obtains sintering puffing foaming heating thing；
3) by step 2) the sintering puffing foaming that obtains heating thing to take out obtained final product after natural cooling from heating furnace and piles up close
Spend for 500kg/m3, water absorption rate be foamed glass that 110%, pore size is 250 μm.
In above step, the blast furnace slag is the metallurgical slag produced during blast furnace ironmaking, directly from tap cinder mouth
Obtain, at 900 DEG C ± 50 DEG C, the glass powder is obtained its temperature control for flint glass Jing ball mill grindings, granularity is marking
Quasi- grit number meter is more than 300 mesh.The foaming agent is limestone, and granularity is more than 300 mesh.The foam stabilizer is boric acid
Salt, granularity is more than 300 mesh.The flux is borax, and granularity is more than 300 mesh.
The foamed glass that the present embodiment is obtained, makes it have fire prevention, waterproof, nontoxic, corrosion resistant the characteristics of due to raw materials for production
The features such as erosion, mothproof, non-aging, "dead", insulation, anti-magnetic wave, antistatic, high mechanical strength, simultaneously because in technique
The characteristics of make it have independent bubble, therefore can be good with all kinds of mud caking property characteristic.Therefore the present embodiment is obtained
Foamed glass make tabular and be applicable to wall interiors packing material, bridge, the water suction paving of skyscraper, highway are high
The water suction paving of layer building, agricultural such as underdrain at the facility capital construction, because its is lightweight therefore is easy to construction, enhance resistance to
Pinking, mitigates native stone to the pressure of structure and suppresses the sinking of building on weak domain.
Embodiment 3
The method that molten blast furnace slag produces foamed glass, comprises the steps：
1) 40 parts of glass powder by mass is accurately weighed, 3.5 parts of foaming agent, 0.5 part of foam stabilizer, 0.6 part of flux is incited somebody to action
Each component is well mixed, and obtains foamed glass just raw material；
2) take 59 parts of molten blast furnace slags in heating furnace from tap cinder mouth and by step 1) foamed glass that obtains is just former
Material is injected in heating furnace, is incubated 10min；Again by the temperature adjustment in heating furnace to 1000 DEG C, 12min is incubated；Make foaming glass
Glass raw material sequentially passes through foaming in heating furnace and annealing obtains sintering puffing foaming heating thing；
3) by step 2) the sintering puffing foaming that obtains heating thing to take out obtained final product after natural cooling from heating furnace and piles up close
Spend for 800kg/m3, water absorption rate be foamed glass that 110%, pore size is 350 μm.
In above step, the blast furnace slag is the metallurgical slag produced during blast furnace ironmaking, directly from tap cinder mouth
Obtain, at 900 DEG C ± 50 DEG C, the glass powder is obtained its temperature control for flint glass Jing ball mill grindings, granularity is marking
Quasi- grit number meter is more than 450 mesh.The foaming agent is soda ash, and granularity is more than 450 mesh.The foam stabilizer is Al2O3,
Granularity is more than 450 mesh.The flux is ice crystal, and granularity is more than 450 mesh.
The foamed glass obtained using the present embodiment has hole of independently holding one's breath so as to the characteristic with high absorption, therefore, will
The foamed glass that the present embodiment is obtained is broken into graininess and adds in water planting container and can be used for water culture etc., can reduce and change waterside
Number, not long green paint in water, plant health growth.
Embodiment 4
The method that molten blast furnace slag produces foamed glass, comprises the steps：
1) 49 parts of glass powder by mass is accurately weighed, 2.8 parts of foaming agent, 0.8 part of foam stabilizer, 0.9 part of flux is incited somebody to action
Each component is well mixed, and obtains foamed glass just raw material；
2) take 51 parts of molten blast furnace slags in heating furnace from tap cinder mouth and by step 1) foamed glass that obtains is just former
Material is injected in heating furnace, is incubated 12min；Again by the temperature adjustment in heating furnace to 900 DEG C, 12min is incubated；Make foamed glass
Raw material sequentially passes through foaming in heating furnace and annealing obtains sintering puffing foaming heating thing；
3) by step 2) the sintering puffing foaming that obtains heating thing to take out obtained final product after natural cooling from heating furnace and piles up close
Spend for 1100kg/m3, water absorption rate be foamed glass that 110%, pore size is 420 μm.
In above step, the blast furnace slag is the metallurgical slag produced during blast furnace ironmaking, directly from tap cinder mouth
Obtain, at 900 DEG C ± 50 DEG C, the glass powder is obtained its temperature control for flint glass Jing ball mill grindings, granularity is marking
Quasi- grit number meter is more than 500 mesh.The foaming agent is coke and carborundum according to mass ratio 1:1 combination, granularity is
It is more than 500 mesh.The foam stabilizer is ZnO and ZrO2According to mass ratio 1:1 combination, granularity is more than 500 mesh.It is described to help
Flux is calcium sulfate and MnO2According to mass ratio 1:1 combination, granularity is more than 500 mesh.
The foamed glass with the separated foam that pore size is 420 μm obtained using the present embodiment so as to height
The characteristic of adsorption cleaning water quality, puts in water source after the foamed glass that the present embodiment is obtained is broken, can be used for river sewage, life
The purification of water qualitys such as sewage living, aquaculture water, dirt in decomposition water；Waterfront bank protection, reduces the top pressure of riverbank, seashore, dykes and dams
Power.
Embodiment 5
The method that molten blast furnace slag produces foamed glass, comprises the steps：
1) 55 parts of glass powder by mass is accurately weighed, 3.0 parts of foaming agent, 0.5 part of foam stabilizer, 0.5 part of flux is incited somebody to action
Each component is well mixed, and obtains foamed glass just raw material；
2) take 50 parts of molten blast furnace slags in heating furnace from tap cinder mouth and by step 1) foamed glass that obtains is just former
Material is injected in heating furnace, is incubated 10min；Again by the temperature adjustment in heating furnace to 970 DEG C, 17min is incubated；Make foamed glass
Raw material sequentially passes through foaming in heating furnace and annealing obtains sintering puffing foaming heating thing；
3) by step 2) the sintering puffing foaming that obtains heating thing to take out obtained final product after natural cooling from heating furnace and piles up close
Spend for 810kg/m3, water absorption rate be foamed glass that 121%, pore size is 380 μm.
In above step, the blast furnace slag is the metallurgical slag produced during blast furnace ironmaking, directly from tap cinder mouth
Obtain, at 900 DEG C ± 50 DEG C, the glass powder is obtained its temperature control for flint glass Jing ball mill grindings, granularity is marking
Quasi- grit number meter is more than 450 mesh.The foaming agent is soda ash, and granularity is more than 450 mesh.The foam stabilizer is Al2O3,
Granularity is more than 450 mesh.The flux is ice crystal, and granularity is more than 450 mesh.
The foamed glass obtained using the present embodiment has hole of independently holding one's breath so as to the characteristic with high absorption, therefore, will
The foamed glass that the present embodiment is obtained is broken into graininess and adds in water planting container and can be used for water culture etc., can reduce and change waterside
Number, not long green paint in water, plant health growth.
Embodiment 6
The method that molten blast furnace slag produces foamed glass, comprises the steps：
1) 60 parts of glass powder by mass is accurately weighed, 2.0 parts of foaming agent, 0.7 part of foam stabilizer, 0.4 part of flux is incited somebody to action
Each component is well mixed, and obtains foamed glass just raw material；
2) take 35 parts of molten blast furnace slags in heating furnace from tap cinder mouth and by step 1) foamed glass that obtains is just former
Material is injected in heating furnace, is incubated 12min；Again by the temperature adjustment in heating furnace to 990 DEG C, 18min is incubated；Make foamed glass
Raw material sequentially passes through foaming in heating furnace and annealing obtains sintering puffing foaming heating thing；
3) by step 2) the sintering puffing foaming that obtains heating thing to take out obtained final product after natural cooling from heating furnace and piles up close
Spend for 650kg/m3, water absorption rate be foamed glass that 95%, pore size is 210 μm.
In above step, the blast furnace slag is the metallurgical slag produced during blast furnace ironmaking, directly from tap cinder mouth
Obtain, at 900 DEG C ± 50 DEG C, the glass powder is obtained its temperature control for flint glass Jing ball mill grindings, granularity is marking
Quasi- grit number meter is more than 450 mesh.The foaming agent is soda ash, and granularity is more than 450 mesh.The foam stabilizer is Al2O3,
Granularity is more than 450 mesh.The flux is ice crystal, and granularity is more than 450 mesh.
The foamed glass obtained using the present embodiment has hole of independently holding one's breath so as to the characteristic with high absorption, therefore, will
The foamed glass that the present embodiment is obtained is broken into graininess and adds in water planting container and can be used for water culture etc., can reduce and change waterside
Number, not long green paint in water, plant health growth.
Embodiment 7
The method that molten blast furnace slag produces foamed glass, comprises the steps：
1) 45 parts of glass powder by mass is accurately weighed, 1.5 parts of foaming agent, 0.3 part of foam stabilizer, 0.8 part of flux is incited somebody to action
Each component is well mixed, and obtains foamed glass just raw material；
2) take 65 parts of molten blast furnace slags in heating furnace from tap cinder mouth and by step 1) foamed glass that obtains is just former
Material is injected in heating furnace, is incubated 8min；Again by the temperature adjustment in heating furnace to 950 DEG C, 15min is incubated；Make foamed glass
Raw material sequentially passes through foaming in heating furnace and annealing obtains sintering puffing foaming heating thing；
3) by step 2) the sintering puffing foaming that obtains heating thing to take out obtained final product after natural cooling from heating furnace and piles up close
Spend for 960kg/m3, water absorption rate be foamed glass that 108%, pore size is 410 μm.
In above step, the blast furnace slag is the metallurgical slag produced during blast furnace ironmaking, directly from tap cinder mouth
Obtain, at 900 DEG C ± 50 DEG C, the glass powder is obtained its temperature control for flint glass Jing ball mill grindings, granularity is marking
Quasi- grit number meter is more than 450 mesh.The foaming agent is soda ash, and granularity is more than 450 mesh.The foam stabilizer is Al2O3,
Granularity is more than 450 mesh.The flux is ice crystal, and granularity is more than 450 mesh.
The foamed glass obtained using the present embodiment has hole of independently holding one's breath so as to the characteristic with high absorption, therefore, will
The foamed glass that the present embodiment is obtained is broken into graininess and adds in water planting container and can be used for water culture etc., can reduce and change waterside
Number, not long green paint in water, plant health growth.
Claims (9)
1. a kind of method that molten blast furnace slag produces foamed glass, it is using blast furnace slag as a kind of main material production foaming glass
Glass, it is characterised in that：The blast furnace slag is the online metallurgical slag for producing during blast furnace ironmaking, is obtained from tap cinder mouth
Afterwards, directly mixed with other raw materials with high temperature fused state, foamed glass is finally obtained.
2. the method that molten blast furnace slag according to claim 1 produces foamed glass, it is characterised in that：The blast furnace slag
Initial temperature is at 900 DEG C ± 50 DEG C.
3. the method that molten blast furnace slag according to claim 1 and 2 produces foamed glass, it is characterised in that：The method is adopted
With the raw material of following mass parts：
4. the method that molten blast furnace slag according to claim 3 produces foamed glass, it is characterised in that：The foaming agent is
One or more combination in dolomite, limestone, soda ash, coke, carborundum, granularity is in terms of standard screen mesh number 200
It is more than mesh.
5. the method that molten blast furnace slag according to claim 3 produces foamed glass, it is characterised in that：The foam stabilizer is
Phosphate, borate, Al2O3、ZnO、ZrO2In one or more combination, granularity in terms of standard screen mesh number 200 mesh with
On.
6. the method that molten blast furnace slag according to claim 3 produces foamed glass, it is characterised in that：The flux is
Prodan, borax, ice crystal, calcium sulfate, MnO2In one or more combination, granularity exists in terms of standard screen mesh number
It is more than 200 mesh.
7. the method that molten blast furnace slag according to claim 3 produces foamed glass, it is characterised in that：The glass is powder
Last current state, granularity is in terms of standard screen mesh number more than 200 mesh.
8. the method that molten blast furnace slag according to claim 3 produces foamed glass, it is characterised in that：Under the method includes
State step：
1) 29～70 parts of glass by mass, 0.1～3.9 part of foaming agent, 0.1～0.9 part of foam stabilizer, flux are accurately weighed
0.1～0.9 part, each component is well mixed, obtains foamed glass just raw material；
2) take 26～70 parts of molten blast furnace slags in heating furnace from tap cinder mouth and by step 1) foamed glass that obtains is just former
Material is sprayed in heating furnace, is incubated 7～15min；Again by the temperature adjustment in heating furnace to 900～1000 DEG C, insulation 12～
20min；Make foamed glass raw material sequentially pass through in heating furnace foaming and annealing process obtain sinter puffing foaming heating thing；
3) by step 2) the sintering puffing foaming that obtains heating thing takes out from heating furnace, and foamed glass is obtained final product after natural cooling.
9. the method that molten blast furnace slag according to claim 8 produces foamed glass, it is characterised in that：Under the method includes
State step：
1) 45～60 parts of glass by mass, 1.5～3.0 parts of foaming agent, 0.3～0.7 part of foam stabilizer, flux are accurately weighed
0.4～0.8 part, each component is well mixed, obtains foamed glass just raw material；
2) take 35～65 parts of molten blast furnace slags in heating furnace from tap cinder mouth and by step 1) foamed glass that obtains is just former
Material is sprayed in heating furnace, is incubated 8～12min；Again by the temperature adjustment in heating furnace to 950～990 DEG C, 15～18min is incubated；
Make foamed glass raw material sequentially pass through in heating furnace foaming and annealing process obtain sinter puffing foaming heating thing；
3) by step 2) the sintering puffing foaming that obtains heating thing takes out from heating furnace, and foamed glass is obtained final product after natural cooling.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108249767A (en) * | 2018-04-27 | 2018-07-06 | 福州大学 | A kind of method using clinker production heat barrier foam glass |
| CN108620409A (en) * | 2018-03-14 | 2018-10-09 | 中南大学 | A method of fixing arsenic-containing waste using high-temperature liquid furnace slag |
| CN110342825A (en) * | 2019-06-24 | 2019-10-18 | 鞍钢股份有限公司 | Method for preparing foam glass by using blast furnace slag as base material |
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| CN108620409A (en) * | 2018-03-14 | 2018-10-09 | 中南大学 | A method of fixing arsenic-containing waste using high-temperature liquid furnace slag |
| CN108249767A (en) * | 2018-04-27 | 2018-07-06 | 福州大学 | A kind of method using clinker production heat barrier foam glass |
| CN110342825A (en) * | 2019-06-24 | 2019-10-18 | 鞍钢股份有限公司 | Method for preparing foam glass by using blast furnace slag as base material |
| CN110342825B (en) * | 2019-06-24 | 2021-07-20 | 鞍钢股份有限公司 | Method for preparing foam glass by using blast furnace slag as base material |
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