CN1288962A - Steel-smelting clinker coagulation and disintegration preventive and its preparation and application - Google Patents
Steel-smelting clinker coagulation and disintegration preventive and its preparation and application Download PDFInfo
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- CN1288962A CN1288962A CN00129926A CN00129926A CN1288962A CN 1288962 A CN1288962 A CN 1288962A CN 00129926 A CN00129926 A CN 00129926A CN 00129926 A CN00129926 A CN 00129926A CN 1288962 A CN1288962 A CN 1288962A
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
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Abstract
The present invention relates to a coagulation and pulverization proventing agent for steel-smelting slag, and its preparation method and application. Said invention includes the selection of raw materials containing siliceous compound, boracic compound and metal oxide, also includes 15-30% of born oxide and 20-45% of silicon dioxide. The above-mentioned raw material are uniformly mixed according to a certain mixing ratio, then smelted to 800-1500 deg.C in the smelting-furnace to make them melt to obtain melting material, then the melting material is cooled in water or under natural condition, then further pulverized and ground into granules with 0.1-5 mm so as to obtain the invented product whith possesses the effects of using as splash preventing agent, using as pulverization preventing agent, using as agglutinant and using as quality-improving agent.
Description
The present invention relates to technical field of smelting, refer in particular to a kind of coagulation and disintegration preventive and manufacture method and application of steel-smelting clinker.
In Electric furnace steel making industry,, generally adopt the working method of external refining at present, be and remove impurity, and in hot metal ladle, add unslaked lime for improving the quality of steel.But this practice rises basicity, when the slag that is generated during refining operation is discharged, follow the phase transition of slag cooled and solidified principal constituent Dicalcium Phosphate (Feed Grade) in atmosphere in the slag pot, cause the volumetric expansion about 15%, this is that its major defect is because of slag atomizing result:
1, because the slag efflorescence makes its powerful reduction, can not utilize again.
2, the atomizing slag disperses in air, causes operating environment abominable, seriously influences the healthy of operator and causes the pollution of environment.
The inventor has studied a large amount of low-melting compositions through long term studies and practice, creates technical scheme of the present invention.
Main purpose of the present invention is to provide a kind of coagulation and disintegration preventive and manufacture method and application of steel-smelting clinker, by developing a kind of composition that comprises silicon oxide, boron oxide and metal oxide, it has the effect that remarkable inhibitory phase shifts, and reaches to prevent that steel-smelting clinker from producing the purpose of coagulation and disintegration.
The object of the present invention is achieved like this: a kind of coagulation and disintegration preventive of steel-smelting clinker, it is characterized in that: its main component and weight proportion comprise boron trioxide 15-30%, silicon-dioxide 20-45% and metal oxide 25-55%, and this metal oxide comprises one or more in calcium oxide, sodium oxide, magnesium oxide, aluminum oxide, titanium oxide, the ferric oxide.Its main component and weight proportion comprise boron trioxide 20.58%, silicon-dioxide 27.24% and metal oxide calcium oxide 29.58%, magnesium oxide 4.40%, aluminum oxide 4.46%, titanium oxide 0.80%, ferric oxide 1.25%; Its main component and weight proportion comprise boron trioxide 18.7%, silicon-dioxide 42.10% and metal oxide calcium oxide 8.20%, magnesium oxide 10.34%, aluminum oxide 7.44%, sodium oxide 10.34%; Its main component and weight proportion comprise boron trioxide 24.27%, silicon-dioxide 29.57% and metal oxide calcium oxide 4.18%, magnesium oxide 38.08%, aluminum oxide 8.96%; Its main component and weight proportion comprise boron trioxide 19.68%, silicon-dioxide 28.15% and metal oxide calcium oxide 28.68%, magnesium oxide 5.10%.Aluminum oxide 3.12%, titanium oxide 0.72%, ferric oxide 1.16%; Its main component and weight proportion comprise boron trioxide 21.28%, silicon-dioxide 40.10% and metal oxide calcium oxide 7.10%, magnesium oxide 10.15%, aluminum oxide 6.50%, sodium oxide 10.56%.
A kind of manufacture method of coagulation and disintegration preventive of steel-smelting clinker is characterized in that: this manufacture method comprises the steps:
(1) select materials and prepare burden:
Select the raw material of silicon-containing compound, boron-containing compound and containing metal oxide compound, and prepare burden and mix by the weight proportion that comprises boron trioxide 15-30% and silicon-dioxide 20-45%;
(2) melting:
800-1500 ℃ of melting generates melts to fusing in smelting furnace;
(3) cooling is ground:
Melts after cooling off in the water or under the natural condition, is further pulverized the particle that grinds to form 0.1-5mm, make the coagulation and disintegration preventive of steel-smelting clinker of the present invention;
Wherein, silicon-containing compound comprises blast furnace granulated slag, cullet and contains silicon ore;
Boron-containing compound comprises and contains crude boron stone, industrial borax.
Select materials and the weight batching of this manufacture method comprise: the raw material of selecting for use is blast furnace granulated slag 50-70% and industrial borax 30-50%.
Select materials and the weight batching of this manufacture method comprise: the raw material of selecting for use is that the mineral of siliceous 13-40% mix with industrial borax, and its ratio of mixture is boron trioxide 15-30%.
The application of the coagulation and disintegration preventive of described steel-smelting clinker is characterized in that: the coagulation and disintegration preventive of this steel-smelting clinker is applicable to as dispersing of steel-smelting clinker and prevents agent, disintegration preventive, agglutinant and modification agent.
Major advantage of the present invention is to have to prevent that steel-smelting clinker from producing coagulation and disintegration and being applicable to the effect that prevents agent, agglutinant and modification agent as dispersing of steel-smelting clinker.
Further specify below in conjunction with preferred embodiment.
Embodiment 1
The main component of the coagulation and disintegration preventive of steel-smelting clinker of the present invention and proportioning comprise boron trioxide (B
2O
3) 15-30%, silicon-dioxide (SiO
2) 20-45% and metal oxide 25-55%, this metal oxide comprises calcium oxide (CaO), sodium oxide (Na
2O), magnesium oxide (MgO), aluminum oxide (Al
2O
3), titanium oxide (TiO
2), ferric oxide (Fe
2O
3) in one or more.
The manufacture method of the coagulation and disintegration preventive of steel-smelting clinker of the present invention comprises the steps:
(1) select materials and prepare burden:
Select the raw material of silicon-containing compound, boron-containing compound and containing metal oxide compound, and by comprising boron trioxide (B
2O
3) 15-30% and silicon-dioxide (SiO
2) proportioning of 20-45% prepares burden and mix;
(2) melting:
800-1500 ℃ of melting generates melts to fusing in smelting furnace;
(3) cooling is ground:
Melts after cooling off in the water or under the natural condition, is further pulverized the particle that grinds to form 0.1-5mm, make the coagulation and disintegration preventive of steel-smelting clinker of the present invention.
Wherein, the silicon-containing compound of selecting for use comprises blast furnace granulated slag, cullet and contains silicon ore etc.
Boron-containing compound comprises and contains crude boron stone, industrial borax etc.
Embodiment 2
In the present embodiment, the raw material of selecting for use is that blast furnace granulated slag 50-70% mixes with industrial borax 30-50%, uses the manufacture method identical with embodiment 1, pulverizes the coagulation and disintegration preventive of the steel-smelting clinker that grinds to form 0.1-5mm.
Resultant wherein comprises boron trioxide 20.58%, silicon-dioxide 27.24% and metal oxide calcium oxide 29.58%, magnesium oxide 4.40%, aluminum oxide 4.46%, titanium oxide 0.80%, ferric oxide 1.25% through content analysis, and other are impurity.
Embodiment 3
In the present embodiment, the raw material of selecting for use is that cullet 45-67% mixes with industrial borax 32-55%, uses the manufacture method identical with embodiment 1, pulverizes the coagulation and disintegration preventive of the steel-smelting clinker that grinds to form 0.1-5mm.
Resultant wherein comprises boron trioxide 18.7%, silicon-dioxide 42.10% and metal oxide calcium oxide 8.20%, magnesium oxide 10.34%, aluminum oxide 7.44%, sodium oxide 10.34% through content analysis, and other are impurity.
Embodiment 4
In the present embodiment, the raw material of selecting for use is that the mineral of siliceous 13-40% mix with industrial borax, and its ratio of mixture is that boron trioxide accounts for 15-30%, uses the manufacture method identical with embodiment 1, pulverizes the coagulation and disintegration preventive of the steel-smelting clinker that grinds to form 0.1-5mm.
Resultant wherein comprises boron trioxide 24.27%, silicon-dioxide 20.57% and metal oxide calcium oxide 4.18%, magnesium oxide 38.08%, aluminum oxide 8.96% through content analysis, and other are impurity.
Embodiment 5
In the present embodiment, the raw material of selecting for use is that blast furnace granulated slag mixes with industrial borax, and its ratio of mixture is that oxidation two boron account for 15-25%, dewaters in the agitator of 600 ℃ of following temperature, mixes, and pulverizes the coagulation and disintegration preventive of the steel-smelting clinker that grinds to form 0.1-5mm.
Resultant wherein comprises boron trioxide 19.68%, silicon-dioxide 28.15% and metal oxide calcium oxide 28.68%, magnesium oxide 5.10%, aluminum oxide 3.12%, titanium oxide 0.72%, ferric oxide 1.16% through content analysis, and other are impurity.
Embodiment 6
In the present embodiment, the raw material of selecting for use is cullet and industrial borax, and the raw material of selecting for use is that the proportioning that boron trioxide accounts for 15-30% is mixed, and uses the method identical with embodiment 1 to pulverize the coagulation and disintegration preventive of the steel-smelting clinker that grinds to form 0.1-5mm.
Resultant wherein comprises boron trioxide 21.28%, silicon-dioxide 40.10% and metal oxide calcium oxide 7.10%, magnesium oxide 10.15%, aluminum oxide 6.50%, sodium oxide 10.56% through content analysis, and other are impurity.
In sum, the coagulation and disintegration preventive of steel-smelting clinker of the present invention, its manufacture method is simple, and raw material sources are abundant, and are cheap, and during use, only need be wrapped up in it to drop in the steel-smelting clinker with paper bag and get final product, and are very convenient.
Evidence, the coagulation and disintegration preventive of steel-smelting clinker of the present invention are applicable to as dispersing of steel-smelting clinker and prevent agent, disintegration preventive, agglutinant and modification agent.Its mechanism of action is as follows:
As everyone knows, the coagulation and disintegration of steel-smelting clinker is because Dicalcium Phosphate (Feed Grade) (C2S) outer skin that the crystallization phase transformation brings in process of cooling of one of reduction steel-smelting clinker composition expands, because Dicalcium Phosphate (Feed Grade) (C2S) is when being cooled to 1425 ℃, by stabile α type, forming α '-H changes, during to 1160 ℃, be deformed into α '-L and change, thick band crystalline form when this change, occurs, during to 680-630 ℃, being deformed into β-H changes, to forming stabile γ form below 500 ℃, this β-H to γ metamorphosis follows the volume of 10-12% to increase, and causes collapsing of slag tissue to collapse, by adding the positively charged ion bigger, reach negatively charged ion radius ratio SiO than the ionic radius of calcium
2The little anionic complex body of ionic radius, form fine crystalline matter, the coagulation and disintegration preventive of steel-smelting clinker of the present invention is in this way, prevents the coagulation and disintegration of slag, and receives and use effect preferably.
Claims (10)
1, a kind of coagulation and disintegration preventive of steel-smelting clinker, it is characterized in that: its main component and weight proportion comprise boron trioxide 15-30%, silicon-dioxide 20-45% and metal oxide 25-55%, and this metal oxide comprises one or more in calcium oxide, sodium oxide, magnesium oxide, aluminum oxide, titanium oxide, the ferric oxide.
2, the coagulation and disintegration preventive of steel-smelting clinker as claimed in claim 1 is characterized in that: its main component and weight proportion comprise boron trioxide 20.58%, silicon-dioxide 27.24% and metal oxide calcium oxide 29.58%, magnesium oxide 4.40%, aluminum oxide 4.46%, titanium oxide 0.80%, ferric oxide 1.25%.
3, the coagulation and disintegration preventive of steel-smelting clinker as claimed in claim 1 is characterized in that: its main component and weight proportion comprise boron trioxide 18.7%, silicon-dioxide 42.10% and metal oxide calcium oxide 8.20%, magnesium oxide 10.34%, aluminum oxide 7.44%, sodium oxide 10.34%.
4, the coagulation and disintegration preventive of steel-smelting clinker as claimed in claim 1 is characterized in that: its main component and weight proportion comprise boron trioxide 24.27%, silicon-dioxide 29.57% and metal oxide calcium oxide 4.18%, magnesium oxide 38.08%, aluminum oxide 8.96%.
5, the coagulation and disintegration preventive of steel-smelting clinker as claimed in claim 1 is characterized in that: its main component and weight proportion comprise boron trioxide 19.68%, silicon-dioxide 28.15% and metal oxide calcium oxide 28.68%, magnesium oxide 5.10%, aluminum oxide 3.12%, titanium oxide 0.72%, ferric oxide 1.16%.
6, the coagulation and disintegration preventive of steel-smelting clinker as claimed in claim 1 is characterized in that: its main component and weight proportion comprise boron trioxide 21.28%, silicon-dioxide 40.10% and metal oxide calcium oxide 7.10%, magnesium oxide 10.15%, aluminum oxide 6.50%, sodium oxide 10.56%.
7, a kind of manufacture method of coagulation and disintegration preventive of steel-smelting clinker is characterized in that: this manufacture method comprises the steps:
(1) select materials and prepare burden:
Select the raw material of silicon-containing compound, boron-containing compound and containing metal oxide compound, and prepare burden and mix by the weight proportion that comprises boron trioxide 15-30% and silicon-dioxide 20-45%;
(2) melting:
800-1500 ℃ of melting generates melts to fusing in smelting furnace;
(3) cooling is ground:
Melts after cooling off in the water or under the natural condition, is further pulverized the particle that grinds to form 0.1-5mm, make the coagulation and disintegration preventive of steel-smelting clinker of the present invention;
Wherein, silicon-containing compound comprises blast furnace granulated slag, cullet and contains silicon ore;
Boron-containing compound comprises and contains crude boron stone, industrial borax.
8, the manufacture method of the coagulation and disintegration preventive of steel-smelting clinker as claimed in claim 7 is characterized in that: select materials and the weight batching of this manufacture method comprise: the raw material of selecting for use is blast furnace granulated slag 50-70% and industrial borax 30-50%.
9, the manufacture method of the coagulation and disintegration preventive of steel-smelting clinker as claimed in claim 7, it is characterized in that: select materials and the weight batching of this manufacture method comprise: the raw material of selecting for use is that the mineral of siliceous 13-40% mix with industrial borax, and its ratio of mixture is boron trioxide 15-30%.
10, the application of the coagulation and disintegration preventive of steel-smelting clinker as claimed in claim 1 is characterized in that: the coagulation and disintegration preventive of this steel-smelting clinker is applicable to as dispersing of steel-smelting clinker and prevents agent, disintegration preventive, agglutinant and modification agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00129926A CN1288962A (en) | 2000-10-18 | 2000-10-18 | Steel-smelting clinker coagulation and disintegration preventive and its preparation and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00129926A CN1288962A (en) | 2000-10-18 | 2000-10-18 | Steel-smelting clinker coagulation and disintegration preventive and its preparation and application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1288962A true CN1288962A (en) | 2001-03-28 |
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ID=4593840
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00129926A Pending CN1288962A (en) | 2000-10-18 | 2000-10-18 | Steel-smelting clinker coagulation and disintegration preventive and its preparation and application |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1516744B (en) * | 2001-06-18 | 2010-04-28 | 株式会社神户制钢所 | Method for producing granular metal |
| CN101608248B (en) * | 2009-07-21 | 2011-01-26 | 大石桥市荣源镁矿有限公司 | Slag condenser for preventing steel-making slag pulverization and slag condensing method |
| CN102653813A (en) * | 2012-05-04 | 2012-09-05 | 鞍山市华洋耐火材料厂 | Boron-base fluxing residue for refinement, and preparation and application method thereof |
-
2000
- 2000-10-18 CN CN00129926A patent/CN1288962A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1516744B (en) * | 2001-06-18 | 2010-04-28 | 株式会社神户制钢所 | Method for producing granular metal |
| CN101608248B (en) * | 2009-07-21 | 2011-01-26 | 大石桥市荣源镁矿有限公司 | Slag condenser for preventing steel-making slag pulverization and slag condensing method |
| CN102653813A (en) * | 2012-05-04 | 2012-09-05 | 鞍山市华洋耐火材料厂 | Boron-base fluxing residue for refinement, and preparation and application method thereof |
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