CN106746583A - The ameliorative way of blast furnace cinder mobility in a kind of mineral wool production - Google Patents
The ameliorative way of blast furnace cinder mobility in a kind of mineral wool production Download PDFInfo
- Publication number
- CN106746583A CN106746583A CN201611087155.9A CN201611087155A CN106746583A CN 106746583 A CN106746583 A CN 106746583A CN 201611087155 A CN201611087155 A CN 201611087155A CN 106746583 A CN106746583 A CN 106746583A
- Authority
- CN
- China
- Prior art keywords
- blast furnace
- flyash
- modified
- mineral wool
- furnace cinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/005—Manufacture of flakes
-
- 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
- C03C13/00—Fibre or filament compositions
- C03C13/06—Mineral fibres, e.g. slag wool, mineral wool, rock wool
Abstract
The invention provides the ameliorative way of blast furnace cinder mobility in a kind of production of mineral wool, blast furnace cinder is modified using flyash.The present invention is modified using flyash to high alumina slag, the viscosity coefficient and acidity coefficient of blast furnace cinder can effectively be reduced, improve its mobile performance, the need for so as to meet production mineral wool, mineral wool diameter, moisture content and the shot content produced meet GB, realize blast furnace slag slag heat effectively utilize, product high value added utilization.
Description
Technical field
The invention belongs to blast furnace cinder flowing in blast furnace cinder reutilization technology field, more particularly to a kind of production of mineral wool
The ameliorative way of property.
Background technology
The blast furnace slag of current China 90% processes the grain slag that granulates using water quenching technology, is mainly used in the building materials row such as cement
Industry.Because water quenching residues processing technique water consumption is big, heat recovery is more difficult and complicated, thus do not cause for a long time enough
Attention.At 1350~1450 DEG C, its sensible heat accounts for the 5.55% of blast furnace expenditure heat to blast furnace slag, therefore makes full use of blast furnace slag
Heat has very important significance.
Modifying agent is added in hot molten blast furnace slag, the energy of flow production mineral wool for improving blast furnace cinder can be utilized effectively
Blast furnace liquid residue sensible heat, and the mineral wool of production has the advantages that traditional furnace cupola mineral wool, significantly reduces mineral wool life
Cost is produced, with preferable economic benefit.Prior art discloses using iron tailings, basicity, MgO or Al2O3Enter Deng to blast furnace slag
Row it is quenched, but it is quenched after blast furnace slag viscosity coefficient and acidity coefficient it is still higher, mobile performance is poor.
The content of the invention
In view of this, it is an object of the invention to provide the improvement side of blast furnace cinder mobility in a kind of production of mineral wool
Method, the blast furnace cinder that obtains of method provided by the present invention has a relatively low viscosity coefficient and acidity coefficient, mobile performance compared with
It is good.
The invention provides the ameliorative way of blast furnace cinder mobility in a kind of production of mineral wool, using flyash to blast furnace
Slag is modified.
The present invention is modified using flyash to high alumina slag, can effectively reduce viscosity coefficient and the acid of blast furnace cinder
Degree coefficient, improves its mobile performance, so that the need for meeting production mineral wool, mineral wool diameter, moisture content and the slag produced
Ball content meets GB, realize blast furnace slag slag heat effectively utilize, product high value added utilization.
In one embodiment, the composition and mass percent average value of the flyash main oxides are：SiO2：
51.87, Al2O3：33.34, MgO：0.011,CaO：3.37.
In a specific embodiment, the present invention can also be modified using flyash and iron tailings to blast furnace cinder.
Wherein, the mass ratio of flyash and iron tailings is 1~2:1~2, preferably 1:1.The main oxygen of mixture of iron tailings and flyash
The composition and mass percent average value of compound are SiO2：56.08, Al2O3, 23.41；MgO：1.82,CaO：3.58.
The present invention adds flyash or flyash and iron tailings to be changed when blast furnace cinder temperature is 1350~1450 DEG C
Property, i.e., add flyash or flyash and iron tailings when blast furnace cinder temperature is 1350~1450 DEG C in quenched electric furnace.
In one embodiment, the addition of flyash or flyash and iron tailings is the 5% of modified hot slag gross weight
~30%.Specifically, the addition of flyash is the 5%~30% of modified hot slag gross weight, preferably 6~13%；Powder
The addition of coal ash and iron tailings is the 5%~30% of modified hot slag gross weight, preferably 15.5~24.2%.
Flyash or flyash and iron tailings, heating and thermal insulation is added to mend when blast furnace cinder temperature is 1350~1450 DEG C
Modified slag Homogenization institute calorific requirement is repaid, soaking time is 10~20min.The main component quality hundred of hot slag after modified
Point ratio is：SiO2：35.35~38.66, Al2O3：14.86~15.18, MgO：7.66~8.24, CaO：30.57~33.81, stream
Dynamic property preferably, meets mineral wool production requirement.
Blast furnace slag comes from iron and steel enterprise in the present invention, and iron tailings takes from stope, and flyash takes from power plant's flue, low cost
Honest and clean, the online quenched operating procedure of blast furnace cinder is simple, easy to operate, is sufficiently mixed hot slag and modifying agent in electric furnace,
Matter, makes its viscosity, composition reach production mineral wool needs, and mineral wool diameter, moisture content and the shot content produced are accorded with
Close GB, realize blast furnace slag slag heat effectively utilize, product high value added utilization.
Specific embodiment
Embodiment 1
Flyash is chosen as modifying agent, fine coal is added when blast furnace cinder temperature is 1350~1450 DEG C in quenched electric furnace
Ash, addition is the 6% of modified hot slag gross weight, wherein, flyash average grain diameter≤200 mesh；The acid of modified blast furnace slag
Degree coefficient is 1.4, and viscosity coefficient is 1.21.
Embodiment 2
Flyash is chosen as modifying agent, fine coal is added when blast furnace cinder temperature is 1350~1450 DEG C in quenched electric furnace
Ash, addition is the 13% of modified hot slag gross weight, wherein, flyash average grain diameter≤200 mesh；The acid of modified blast furnace slag
Degree coefficient is 1.2, and viscosity coefficient is 1.05.
Embodiment 3
Flyash is chosen as modifying agent, fine coal is added when blast furnace cinder temperature is 1350~1450 DEG C in quenched electric furnace
Ash, addition is the 8% of modified hot slag gross weight, wherein, flyash average grain diameter≤200 mesh；The acid of modified blast furnace slag
Degree coefficient is 1.3, and viscosity coefficient is 1.1.
Embodiment 4
The mixture of iron tailings and flyash is chosen as modifying agent, when in quenched electric furnace blast furnace cinder temperature be 1350~
The mixture of iron tailings and flyash is added at 1450 DEG C, mixture addition is no more than modified hot slag gross weight
15.5%, the ratio of iron tailings and flyash is 1:1.The acidity coefficient of modified blast furnace slag is 1.4, and viscosity coefficient is 1.2.
Embodiment 5
The mixture of iron tailings and flyash is chosen as modifying agent, when in quenched electric furnace blast furnace cinder temperature be 1350~
The mixture of iron tailings and flyash is added at 1450 DEG C, mixture addition is no more than modified hot slag gross weight
24.2%, the ratio of iron tailings and flyash is 1:1.The acidity coefficient of modified blast furnace slag is 1.2, and viscosity coefficient is 1.04.
Embodiment 6
The mixture of iron tailings and flyash is chosen as modifying agent, when in quenched electric furnace blast furnace cinder temperature be 1350~
The mixture of iron tailings and flyash is added at 1450 DEG C, mixture addition is no more than the 20% of modified hot slag gross weight,
The ratio of iron tailings and flyash is 1:1.The acidity coefficient of modified blast furnace slag is 1.3, and viscosity coefficient is 1.1.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (8)
1. the ameliorative way of blast furnace cinder mobility during a kind of mineral wool is produced, it is characterised in that molten to blast furnace using flyash
Slag is modified.
2. ameliorative way according to claim 1, it is characterised in that carried out to blast furnace cinder using flyash and iron tailings
It is modified.
3. ameliorative way according to claim 2, it is characterised in that the mass ratio of flyash and iron tailings is 1~2:1~
2。
4. the ameliorative way according to claims 1 to 3 any one, it is characterised in that in blast furnace cinder temperature be 1350
Flyash or flyash and iron tailings is added to be modified at~1450 DEG C.
5. ameliorative way according to claim 4, it is characterised in that the addition of flyash or flyash and iron tailings is
The 5%~30% of modified hot slag gross weight.
6. ameliorative way according to claim 4, it is characterised in that the addition of flyash is modified hot slag gross weight
5%~30%, the addition of flyash and iron tailings is the 5%~15% of modified hot slag gross weight.
7. ameliorative way according to claim 6, it is characterised in that add when blast furnace cinder temperature is 1350~1450 DEG C
Enter flyash or flyash and iron tailings, heating and thermal insulation.
8. ameliorative way according to claim 7, it is characterised in that the time of the heating and thermal insulation be 10min~
20min。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611087155.9A CN106746583A (en) | 2016-12-01 | 2016-12-01 | The ameliorative way of blast furnace cinder mobility in a kind of mineral wool production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611087155.9A CN106746583A (en) | 2016-12-01 | 2016-12-01 | The ameliorative way of blast furnace cinder mobility in a kind of mineral wool production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106746583A true CN106746583A (en) | 2017-05-31 |
Family
ID=58915095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611087155.9A Pending CN106746583A (en) | 2016-12-01 | 2016-12-01 | The ameliorative way of blast furnace cinder mobility in a kind of mineral wool production |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107628753A (en) * | 2017-09-21 | 2018-01-26 | 汶川县三力铁合金有限责任公司 | A kind of method for producing mineral wool using environmental-protecting dust powder and molten slag |
| CN108129031A (en) * | 2017-12-11 | 2018-06-08 | 鞍钢股份有限公司 | A kind of mineral wool produced using metallurgical waste and blast furnace cinder and its production method |
| CN108218238A (en) * | 2017-12-11 | 2018-06-29 | 鞍钢股份有限公司 | A kind of rock wool and its production method using metallurgical waste and blast furnace cinder as raw material |
| CN110540360A (en) * | 2018-05-29 | 2019-12-06 | 潍坊奥华环保新材料科技有限公司 | process for producing rock and mineral wool products by using hot molten slag of iron-making blast furnace and electric arc furnace |
| CN110590169A (en) * | 2019-09-26 | 2019-12-20 | 惠州市嘉良保温材料有限公司 | Novel mineral wool multilayer processing preparation method |
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|---|---|---|---|---|
| US20050066622A1 (en) * | 2003-09-29 | 2005-03-31 | Jun-Han Choi | Incombustible composition for fire door/wall, fire door/wall using incombustible composition, and method of producing fire door/wall |
| CN102276142A (en) * | 2011-06-30 | 2011-12-14 | 北京大学 | Equipment and method for preparing inorganic ore slag fiber by utilizing thermal-state blast furnace slag |
-
2016
- 2016-12-01 CN CN201611087155.9A patent/CN106746583A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050066622A1 (en) * | 2003-09-29 | 2005-03-31 | Jun-Han Choi | Incombustible composition for fire door/wall, fire door/wall using incombustible composition, and method of producing fire door/wall |
| CN102276142A (en) * | 2011-06-30 | 2011-12-14 | 北京大学 | Equipment and method for preparing inorganic ore slag fiber by utilizing thermal-state blast furnace slag |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107628753A (en) * | 2017-09-21 | 2018-01-26 | 汶川县三力铁合金有限责任公司 | A kind of method for producing mineral wool using environmental-protecting dust powder and molten slag |
| CN107628753B (en) * | 2017-09-21 | 2023-12-19 | 汶川县三力铁合金有限责任公司 | Method for producing mineral cotton by utilizing environment-friendly dust collection powder and molten slag |
| CN108129031A (en) * | 2017-12-11 | 2018-06-08 | 鞍钢股份有限公司 | A kind of mineral wool produced using metallurgical waste and blast furnace cinder and its production method |
| CN108218238A (en) * | 2017-12-11 | 2018-06-29 | 鞍钢股份有限公司 | A kind of rock wool and its production method using metallurgical waste and blast furnace cinder as raw material |
| CN110540360A (en) * | 2018-05-29 | 2019-12-06 | 潍坊奥华环保新材料科技有限公司 | process for producing rock and mineral wool products by using hot molten slag of iron-making blast furnace and electric arc furnace |
| CN110590169A (en) * | 2019-09-26 | 2019-12-20 | 惠州市嘉良保温材料有限公司 | Novel mineral wool multilayer processing preparation method |
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