CN101696463A - Steel-making heat-generating agent of semisteel subjected to vanadium extraction - Google Patents
Steel-making heat-generating agent of semisteel subjected to vanadium extraction Download PDFInfo
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- CN101696463A CN101696463A CN200910066239A CN200910066239A CN101696463A CN 101696463 A CN101696463 A CN 101696463A CN 200910066239 A CN200910066239 A CN 200910066239A CN 200910066239 A CN200910066239 A CN 200910066239A CN 101696463 A CN101696463 A CN 101696463A
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- semisteel
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- vanadium extraction
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Abstract
The invention discloses a steel-making heat-generating agent of semisteel subjected to vanadium extraction, which comprises the following main components in percentage by mass: 32%-35% of SiC, 45%-55% of solid C, not more than 6.2% of S, not more than 0.2% of H2O, and not less than 25% of Si. According to the steel-making heat-generating agent of semisteel subjected to vanadium extraction, SiC and amorphous graphite are mixed together in scientific proportion; the adding of graphite can increase the C content to be normal under the condition that the C content of molten steel subjected to vanadium extraction is tiny and deviates from the content of steel; in addition, the heat generating reaction SiC+O2=CO2=SiO2+Q is beneficial to adjusting the alkalinity of slag, facilitates slagging, and can further boost the temperature of molten steel to 1,700 DEG C quickly. Besides, the steel-making heat-generating agent of semisteel subjected to vanadium extraction does not bring in new impurities or increase impurities after added in molten steel.
Description
Technical field
The invention belongs to the auxilliary material technical field of smelting iron and steel, be specifically related to a kind of steel-making heat-generating agent of semisteel subjected to vanadium extraction.
Background technology
In the extraction process of vanadium, a most important route is as the Flos Bombacis Malabarici of China, extra large Wilder and these comprehensive steel mills of Muscovite Nizhni Tagil in South Africa, and the form with V2O5 in the middle slag that generates from ironmaking and steel-making is extracted vanadium.In the iron-smelting process of these steel mills, the vanadium in the iron ore is dissolved in the molten iron through melting.Molten iron has formed and has contained 10% to 25% V through peroxidation, slagging
2O
5Slag, be sent to process for making through the vanadium extraction molten iron more at last.Contain 10～25%V
2O
5Vanadium slag then go out the finished product for vanadate or vanadium oxide through the process for producing of roasting/extract technology.50% to 60% vanadium primary products factory all adopts this technology in the world.Second important route producing the primary products of vanadium be, in roasting/extract technology to above-mentioned V
2O
5Content reaches 1.8% ore and carries out the oxide compound that direct process for producing goes out vanadate or vanadium.Have five or six companies to adopt the primary products of this explained hereafter vanadium in the world, they mainly are distributed in South Africa and Australia, and its output accounts for 25%～30% of the world's elementary vanadium manufacturer output.
China southwest is that river, Yunnan-Guizhou one abounds with the vanadium iron ore deposit, and vanadium and iron all are that metallic element, especially vanadium iron smelting special steel important former especially is badly in need of in country.Ton vanadium valency is up to 1,000,000 yuan, and is past continued to use the integrated smelting technology of steel-making back vanadium extraction earlier always, and the extraction yield of vanadium only hangs down 2.3%, has wasted valuable vanadium resource.In order to save vanadium resource, the while is the benefit in order to be brought by increase vanadium productive rate also.Kunming Iron and Steel Works etc. have reformed vanadium iron integrated smelting technology, but process of the test find vanadium the useless oxidation consumption of mistake too much heat, liquid steel temperature is dropped to about 1500 ℃, departed from the steel-making temperature curve, this need just to require one and has multi-functional heat-generating agent after carrying barium.
Summary of the invention
The invention provides a kind of heating and soon, do not introduce new impurity, free of contamination steel-making heat-generating agent of semisteel subjected to vanadium extraction.
A kind of steel-making heat-generating agent of semisteel subjected to vanadium extraction, its main component and quality percentage composition are as follows: SiC 32～35%, C
Gu45～55%, S is smaller or equal to 6.2%, H
2O is smaller or equal to 0.2%, and wherein Si is more than or equal to 25%.
Described steel-making heat-generating agent of semisteel subjected to vanadium extraction be the purity with 43% quality be the purity of 80% SiC, 56% quality be 75% amorphous graphite thorough mixing evenly after, be crushed to 0～3 millimeter particle, the tackiness agent water glass that adds 1% quality, on ball press, be pressed into bead after stirring, 20～40 millimeters of drying screenings, water content are packaged into bag after the assay was approved smaller or equal to 1% bead.
Steel-making heat-generating agent of semisteel subjected to vanadium extraction of the present invention is by the proportioning with science, SiC and amorphous graphite are mixed, the carbon silicone content only remains under the prerequisite of micro-, as to have departed from steel composition in the molten steel after carrying alum, has added graphite and has made C content increase to normal contents, in addition SiC+O
2=CO
2+ SiO
2The exothermic reaction of+Q, help adjusting bits basicity, play the effect of promotionization slag, more can impel liquid steel temperature to reach 1700 ℃ rapidly, and after in the steel-making heat-generating agent of semisteel subjected to vanadium extraction adding molten steel of the present invention, do not bring new impurity into and increase impurity, make globe in addition, bring pollution can for the use scene, can not site work employee's health be damaged.
Embodiment
A kind of steel-making heat-generating agent of semisteel subjected to vanadium extraction, its main component and quality percentage composition are as follows: SiC 32～35%, C
Gu45～55%, S is smaller or equal to 6.2%, H
2O is smaller or equal to 0.2%, and wherein Si is more than or equal to 25%.
Described steel-making heat-generating agent of semisteel subjected to vanadium extraction be the purity with 43% quality be the purity of 80% SiC, 56% quality be 75% amorphous graphite thorough mixing evenly after, be crushed to 0～3 millimeter particle, the tackiness agent water glass that adds 1% quality, on ball press, be pressed into bead after stirring, 20～40 millimeters of drying screenings, water content are packaged into bag after the assay was approved smaller or equal to 1% bead.
Steel-making heat-generating agent of semisteel subjected to vanadium extraction of the present invention is by the proportioning with science, SiC and amorphous graphite are mixed, the carbon silicone content only remains under the prerequisite of micro-, as to have departed from steel composition in the molten steel after carrying alum, has added graphite and has made C content increase to normal contents, in addition SiC+O
2=CO
2+ SiO
2The exothermic reaction of+Q, help adjusting bits basicity, play the effect of promotionization slag, more can impel liquid steel temperature to reach 1700 ℃ rapidly, and after in the steel-making heat-generating agent of semisteel subjected to vanadium extraction adding molten steel of the present invention, do not bring new impurity into and increase impurity, make globe in addition, bring pollution can for the use scene, can not site work employee's health be damaged.
Because go ahead of the rest the vanadium extraction operation, go in the process of vanadium in oxidation, make easily oxidation element oxidation and only surplus a small amount of such as silicon, manganese, shortage of heat when causing semi-steel making, because of main heating element such as half steel heat-generating agent component carbon containing and silicon, every stove steel adds about 200 kilograms half steel heat-generating agent, can meet the demands substantially.In order to improve the steel scrap Intake Quantity, reduce molten steel consumption, behind the employing half steel heat-generating agent, the molten iron Intake Quantity is constant, adds about 300 kilograms half steel heat-generating agent, and 5 tons of steel scraps originally can increase to 5 tons, and this process cost drops to 4.66 yuan/t by 8.8 yuan/t.4,000,000 tons of years of steel mill's output 1.56 ten thousand yuan of benefits, popularize 8,280 ten thousand yuan of 2,000 ten thousand tons of wounds of southwest output of steel benefits in an all-round way.1200 yuan/t of this products production total cost, selling 1500 yuan/t profit is 300 yuan/t, 15000 tons of annual supplys, 4,500,000 yuan of company's wound benefits.Popularize 2,250 ten thousand yuan of back benefits in an all-round way.Use half steel heat-generating agent cost low, satisfied the production needs.
Claims (2)
1. a steel-making heat-generating agent of semisteel subjected to vanadium extraction is characterized in that, its main component and quality percentage composition are as follows: SiC 32～35%, C
Gu45～55%, S is smaller or equal to 6.2%, H
2O is smaller or equal to 0.2%, and wherein Si is more than or equal to 25%.
2. steel-making heat-generating agent of semisteel subjected to vanadium extraction as claimed in claim 1, it is characterized in that: described steel-making heat-generating agent of semisteel subjected to vanadium extraction be the purity with 43% quality be the purity of 80% SiC, 56% quality be 75% amorphous graphite thorough mixing evenly after, be crushed to 0～3 millimeter particle, the tackiness agent water glass that adds 1% quality, on ball press, be pressed into bead after stirring, 20～40 millimeters of drying screenings, water content are packaged into bag after the assay was approved and form smaller or equal to 1% bead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910066239A CN101696463A (en) | 2009-10-23 | 2009-10-23 | Steel-making heat-generating agent of semisteel subjected to vanadium extraction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910066239A CN101696463A (en) | 2009-10-23 | 2009-10-23 | Steel-making heat-generating agent of semisteel subjected to vanadium extraction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101696463A true CN101696463A (en) | 2010-04-21 |
Family
ID=42141589
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910066239A Pending CN101696463A (en) | 2009-10-23 | 2009-10-23 | Steel-making heat-generating agent of semisteel subjected to vanadium extraction |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107354263A (en) * | 2017-07-21 | 2017-11-17 | 淅川县三合冶金材料有限公司 | Converter exothermic mixture and its adding technology |
| CN110438294A (en) * | 2019-09-09 | 2019-11-12 | 攀钢集团攀枝花钢铁研究院有限公司 | The method of half steel increase heat source |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1523122A (en) * | 2003-09-04 | 2004-08-25 | 吴光亮 | Carburant for steel-making and producing process and method of using thereof |
-
2009
- 2009-10-23 CN CN200910066239A patent/CN101696463A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1523122A (en) * | 2003-09-04 | 2004-08-25 | 吴光亮 | Carburant for steel-making and producing process and method of using thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107354263A (en) * | 2017-07-21 | 2017-11-17 | 淅川县三合冶金材料有限公司 | Converter exothermic mixture and its adding technology |
| CN110438294A (en) * | 2019-09-09 | 2019-11-12 | 攀钢集团攀枝花钢铁研究院有限公司 | The method of half steel increase heat source |
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Application publication date: 20100421 |