CN101665856B - Steel-making deoxidizer and preparation method thereof - Google Patents
Steel-making deoxidizer and preparation method thereof Download PDFInfo
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- CN101665856B CN101665856B CN2009100177585A CN200910017758A CN101665856B CN 101665856 B CN101665856 B CN 101665856B CN 2009100177585 A CN2009100177585 A CN 2009100177585A CN 200910017758 A CN200910017758 A CN 200910017758A CN 101665856 B CN101665856 B CN 101665856B
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Abstract
The invention relates to a steel-making deoxidizer and a production method thereof. The steel-making deoxidizer comprises the following components in percentage by weight: 10-40% of Si, 60-30% of SiC, 10-25% of Fe and 5-20% of CaSiO3 and is prepared from a quartz crystal and solar cell processing waste sand by spraying an aqueous Ca(OH)2 solution in granulating process. The invention makes wastesprofitable, realizes recycling, reduces the environmental pollution and can benefit the society.
Description
Technical field
The invention belongs to steel-making auxiliary agent production and trade waste comprehensive utilization field, relate to a kind of steel making deoxidant and preparation method thereof, is raw material with quartz crystal and solar cell processing antiquated sand particularly, the preparation steel making deoxidant.
Background technology
Steel industry original adoption ferrosilicon is made reductor, and steel making deoxidant is made with silicon carbide in the back.At present, ferrosilicon and silicon carbide are the reductors that field of steel-making is most widely used, and consumption is very huge.Piezoelectric quartz crystal is the base mateiral of electronic industry, when piezoelectric quartz crystal is produced electronic devices and components, the SiC micro mist is widely used in from cutting to each operation of grinding and polishing as abrasive material, produced and contained the mixture that comprises cutting liquid (oil or water), abrasive material (SiC), silica powder (SiO2), equipment frock material (Fe) in a large number, claim quartz crystal processing antiquated sand, as refuse treatment; Equally, when field of solar energy is made photovoltaic cell, also as abrasive material raw materials such as polysilicon or silicon single crystal are processed with the SiC micro mist, form and contain the mixture that comprises cutting liquid (ethylene glycol), abrasive material (SiC), silica flour (Si), equipment frock material (Fe) in a large number, claim photovoltaic cell processing antiquated sand, as refuse treatment, caused serious environmental to pollute and the wasting of resources.
The preparation method of a CN1676624 manganese series multi-element composite deoxidant for steel smelting, raw material adopts All Pure Nature raw material or waste residue, disposable production manganese series multi-element composite deoxidant.Raw materials used have manganese ore, rich manganese slag, silica, bauxitic clay, rhombspar, fluorite, lime or a Wingdale.
The Ca-Fe alloy that CN101260454 electricity consumption masonry raw material production is used to make steel and the raw material of calcareous composite deoxidant.Its preparation method has two kinds, and the one, in electric furnace, be melt into Ca-Fe alloy with calcium carbide and iron, be used for steel-making.Also can do Ca-Fe alloy to contain the master alloy of calcium composite deoxidant, produce calcareous composite deoxidant.The 2nd, when producing the calcic complex deoxidization, press calcium content with addition of calcium carbide, make and contain calcium composite deoxidant.
CN1265426 complex deoxidizer for steelmaking, its chemical ingredients (weight ratio) is: Si20-60%, Al2-15%, Ba5-25%, Sr4-15%, Ca3-10%, Fe surplus; With silica, barite, lazurite, bauxitic clay, Wingdale, iron filings, coke are raw material, and batching places the hot stove in ore deposit in proportion, and one time reducing and smelting is made.
CN1311338 provides a kind of Si-Ca-C deoxidiser for the deoxidising agent for manufacture of steel with converters technical field, and its principal character is by industrial raw material SiC, CaC
2, SiFe mixes, wherein (quality percentage composition) Ca35-50%, C15-30%, Si10-25%, AL
2O
32-4.5%, Fe
2O
33-5%, S 0.01-0.04%, P
2O
50.01-0.02%, MnO0.5-1%, H
2O0.5%.
CN101177721 has proposed a kind of multi-functional refining agent that can effectively control steel inclusion, and this refining agent is by CaO, CaC
2, SiC, Na
2CO
3, C, CaF
2With the BaCaSi alloy composition, its weight percent is CaO:30～60%, CaC
2: 5～15%, SiC:5～15%, Na
2CO
3: 5～15%, CaCO
3: 5～15%, CaF
2: 5～15%, BaCaSi:2～10%, C:2～10%, fusing point≤1400 ℃.This refining agent has removes the function that is mingled with in the steel, also has the function of foaming submerged arc, desulfurization.
The content of above-mentioned patent disclosure material, all need adopt novel material is raw material, patent of the present invention then is to produce steel making deoxidant by the processing to trade waste.
Summary of the invention
The objective of the invention is to utilize quartz crystal and photovoltaic cell processing waste material to produce the steel making deoxidant of super quality and competitive price, realize turning waste into wealth, recycle, protection environment, benefit the society.
Another object of the present invention provides a kind of preparation method of above-mentioned steel making deoxidant.
Technical scheme of the present invention is that a kind of steel making deoxidant is characterized in that: with quartz crystal processing antiquated sand, photovoltaic cell processing antiquated sand and Ca (OH)
2The aqueous solution is raw material, is grouped into by following one-tenth by weight percentage:
Si 10～40％
SiC 60～30％
Fe 10～25％
CaSiO
3 5～20％。
A kind of method for preparing above-mentioned steel making deoxidant: may further comprise the steps:
(1) separating treatment of quartz crystal processing antiquated sand
With the waste oil sand that forms in the quartz crystal processing through heating, oven dry, separation, deironing, remove SiO
2After, obtain containing SiC60～90%, SiO
25～30%, iron 5～10%, granularity 350～400 purpose quartz crystals processing antiquated sand;
(2) processing of photovoltaic cell processing antiquated sand
The washing of photovoltaic cell processing antiquated sand, remove cutting fluid, obtain containing Si 30～60%, SiC 30～50%, iron 10～20%, granularity 300～350 purpose photovoltaic cells processing antiquated sand;
(3) granulation
The quartz crystal that makes in the step (1) is processed the photovoltaic cell processing antiquated sand that makes in antiquated sand and the step (2) add in the tablets press, spray Ca (OH) by 5～15% of two kinds of antiquated sand siccative total amounts
2The aqueous solution is made spherical or beans shape particle;
(4) it is standby that the particle that step (3) is made is dried 3～10 hours, the particle of choosing particle diameter 2～8mm under 150～300 ℃ of conditions;
(5) packing gets finished product.
In preparation method's step 3) of above-mentioned steel making deoxidant, the ratio of processing antiquated sand and photovoltaic cell processing antiquated sand by weight quartz crystal is 1: 9～9: 1.
The invention has the beneficial effects as follows: utilize quartz crystal and photovoltaic cell processing waste material to produce the steel making deoxidant of super quality and competitive price, realize turning waste into wealth, recycle, minimizing environmental pollution, benefit the society.
Specific embodiments
Embodiment 1
The antiquated sand of quartz crystal processing according to the ZL01144627.6 comprehensive treating process for waste crystal procesing oily sand, through heating, oven dry, separation, deironing, remove SiO
2After, remove cutting fluid and part Si O2, iron and oxide compound thereof, obtain containing SiC 75%, SiO
217%, iron 8%, granularity 350～400 purpose quartz crystals processing antiquated sand; The washing of photovoltaic cell processing antiquated sand, remove cutting fluid, obtain containing Si 45%, SiC 40%, iron 15% after the drying, granularity 300～350 purpose photovoltaic cells processing antiquated sand; According to detected result and product composition requirement, adjust two kinds of proportioning raw materials 4.5: 1, thorough mixing batching in stirrer; The material for preparing is delivered in the granulating disc with rotary conveyor, regulated rotating speed, start water pump, spray calcium hydroxide Ca (OH)
2The aqueous solution (sprinkling amount be siccative total amount 5～15%) makes to be fine mist and to spray into calcium hydroxide aqueous solution and SiO
2Micro mist reaction generates the Calucium Silicate powder wedding agent, has the bonding force that is similar to cement, in conjunction with responseless SiC, obtains the granule strength height, not broken, main component is the granule of SiC, finishes granulating working procedure; The granulation work in-process are put into drying room under 100 ℃ of conditions dry 3 hours, and through screening, the particle of choosing particle diameter 2～8mm carries out package metro-measuring as product, becomes product; The defective particle of screening back particle diameter returns burden process granulation again after crushed.Present embodiment is applicable to the enterprise that scale of investment is less.
Embodiment 2
The antiquated sand of quartz crystal processing by the ZL01147627.6 comprehensive treating process for waste crystal procesing oily sand through heating, oven dry, separation, deironing, remove SiO
2After, remove cutting fluid and part Si O2, iron and oxide compound thereof, obtain containing SiC 70%, SiO
220%, iron 10%, granularity 350～400 purpose quartz crystals processing antiquated sand; Cutting fluid is removed in the washing of photovoltaic cell processing antiquated sand, and obtaining content after the drying is Si 40%, SiC 50%, iron 10%, granularity 300～350 purpose photovoltaic cells processing antiquated sand; According to detected result and product composition requirement, adjust two kinds of proportioning raw materials (it is 1: 9 that test of many times draws proportioning), hydro-oxidation calcium solution in stirrer (ratio of the mixture of calcium hydroxide and quartz crystal processing antiquated sand and photovoltaic cell processing antiquated sand is 5～15%) is mixed into slurry, SiO2 micro mist reaction in calcium hydroxide aqueous solution and the raw material generates the Calucium Silicate powder wedding agent, has the bonding force that is similar to cement, can obtain good granule strength, the slurry that mixes sprays into granulation in the spray granulating machine with spray gun, and oven dry is 3 hours under 220 ℃ of conditions; The particle of choosing particle diameter 2～8mm carries out package metro-measuring as product, becomes product; The screening back defective particle of particle diameter returns the burden process granulation of preparing burden again after crushed.Present embodiment is applicable to the enterprise that scale of investment is bigger.
Claims (4)
1. a steel making deoxidant is characterized in that: with quartz crystal processing antiquated sand, photovoltaic cell processing antiquated sand and Ca (OH)
2The aqueous solution is raw material, is grouped into by following one-tenth by weight percentage:
Si 10～40％
SiC 60～30％
Fe 10～25％
CaSiO
3 5～20％。
2. steel making deoxidant as claimed in claim 1 is characterized in that: described steel making deoxidant is the particle of 2～8mm.
3. the preparation method of claim 1 or 2 described steel making deoxidant: may further comprise the steps:
(1) separating treatment of quartz crystal processing antiquated sand
With the waste oil sand that forms in the quartz crystal processing through heating, oven dry, separation, deironing, remove SiO
2After, obtain containing SiC60～90%, SiO
25～30%, iron 5～10%, granularity 350～400 purpose quartz crystals processing antiquated sand;
(2) processing of photovoltaic cell processing antiquated sand
The washing of photovoltaic cell processing antiquated sand, remove cutting fluid, obtain containing Si 30～60%, SiC 30～50%, iron 10～20%, granularity 300～350 purpose photovoltaic cells processing antiquated sand;
(3) granulation
The quartz crystal that makes in the step (1) is processed the photovoltaic cell processing antiquated sand that makes in antiquated sand and the step (2) add in the tablets press, spray Ca (OH) by 5～15% of two kinds of antiquated sand siccative total amounts
2The aqueous solution is made spherical or beans shape particle;
(4) it is standby that the particle that step (3) is made is dried 3～10 hours, the particle of choosing particle diameter 2～8mm under 150～300 ℃ of conditions;
(5) packing gets finished product.
4. the preparation method of steel making deoxidant as claimed in claim 3 is characterized in that, in the step (3), the ratio of processing antiquated sand and photovoltaic cell processing antiquated sand by weight quartz crystal is 1: 9～9: 1.
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| CN2009100177585A CN101665856B (en) | 2009-08-28 | 2009-08-28 | Steel-making deoxidizer and preparation method thereof |
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|---|---|---|---|
| CN2009100177585A CN101665856B (en) | 2009-08-28 | 2009-08-28 | Steel-making deoxidizer and preparation method thereof |
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| CN101665856A CN101665856A (en) | 2010-03-10 |
| CN101665856B true CN101665856B (en) | 2010-12-29 |
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| CN2009100177585A Expired - Fee Related CN101665856B (en) | 2009-08-28 | 2009-08-28 | Steel-making deoxidizer and preparation method thereof |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102534203A (en) * | 2011-12-31 | 2012-07-04 | 上海盛宝冶金科技有限公司 | Photovoltaic silicon alloy ball and production method thereof |
| CN102433444A (en) * | 2011-12-31 | 2012-05-02 | 上海盛宝钢铁冶金炉料有限公司 | Stainless steel dusting powder reduced pellet containing photovoltaic material and production method thereof |
| CN102994702A (en) * | 2012-09-29 | 2013-03-27 | 北京科技大学 | Process for utilizing fretsaw silicon mud to produce steel ladle dreg modifying agent for low-oxygen high-carbon steel |
| CN104775000A (en) * | 2015-03-25 | 2015-07-15 | 芜湖华炀炉料科技有限公司 | Calcium deoxidizer using dolomite as refractory component and preparation method thereof |
| CN112280935A (en) * | 2020-09-27 | 2021-01-29 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Steelmaking deoxidizer produced from photovoltaic material powder and preparation method thereof |
| CN113699310A (en) * | 2021-08-26 | 2021-11-26 | 安阳县佳诚冶耐有限责任公司 | Silicon-increasing, carbon-increasing, deoxidizing and desulfurizing multifunctional modified silicon carbide additive for casting and preparation method thereof |
Citations (2)
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| CN1727500A (en) * | 2004-07-27 | 2006-02-01 | 顾克井 | Composite alloy in use for deoxidized alloying in steel making, and preparation method |
| CN1831154A (en) * | 2005-10-26 | 2006-09-13 | 姜殿波 | Si-Ca-Ti-Fe alloy used for steelmaking desoxidant |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1727500A (en) * | 2004-07-27 | 2006-02-01 | 顾克井 | Composite alloy in use for deoxidized alloying in steel making, and preparation method |
| CN1831154A (en) * | 2005-10-26 | 2006-09-13 | 姜殿波 | Si-Ca-Ti-Fe alloy used for steelmaking desoxidant |
Non-Patent Citations (2)
| Title |
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| JP特開平7-113107A 1995.05.02 |
| 丁龙志.碳化硅用作电弧炉炼钢脱氧剂在我厂的应用.《黑龙江冶金》.1997,(第2期),27-28. * |
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Owner name: JINAN IRON AND STEEL CO LTD Free format text: FORMER OWNER: LAIWU IRON CO., LTD. Effective date: 20120305 |
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Effective date of registration: 20120305 Address after: 250101 Ji'nan Industrial Road, Shandong, No. 21 Patentee after: Jinan Iron and Steel Co., Ltd. Address before: 271104, Xinxing Road, Gangcheng District, Shandong, Laiwu, 21 Patentee before: Laiwu Iron Co., Ltd. |
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Owner name: SHANDONG IRON + STEEL CO., LTD. Free format text: FORMER NAME: JINAN IRON AND STEEL CO LTD |
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Address after: 250101 Ji'nan Industrial Road, Shandong, No. 21 Patentee after: Shandong Iron & Steel Group Co., Ltd. Address before: 250101 Ji'nan Industrial Road, Shandong, No. 21 Patentee before: Jinan Iron and Steel Co., Ltd. |
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