CN102206745A - Additive for saving energy in process of sintering iron ore - Google Patents
Additive for saving energy in process of sintering iron ore Download PDFInfo
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- CN102206745A CN102206745A CN201110120935XA CN201110120935A CN102206745A CN 102206745 A CN102206745 A CN 102206745A CN 201110120935X A CN201110120935X A CN 201110120935XA CN 201110120935 A CN201110120935 A CN 201110120935A CN 102206745 A CN102206745 A CN 102206745A
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- CN
- China
- Prior art keywords
- additive
- sintering
- coke powder
- ethanolamine
- energy
- Prior art date
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- 239000000654 additive Substances 0.000 title claims abstract description 35
- 230000000996 additive effect Effects 0.000 title claims abstract description 34
- 238000005245 sintering Methods 0.000 title claims abstract description 31
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title abstract description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 22
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical group NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000005054 agglomeration Methods 0.000 claims description 8
- 230000002776 aggregation Effects 0.000 claims description 8
- 238000004134 energy conservation Methods 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 238000002156 mixing Methods 0.000 abstract description 10
- 239000004449 solid propellant Substances 0.000 abstract description 9
- 239000007864 aqueous solution Substances 0.000 abstract description 8
- 239000003795 chemical substances by application Substances 0.000 abstract description 3
- 238000002485 combustion reaction Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 238000005453 pelletization Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 abstract 1
- KGWDUNBJIMUFAP-KVVVOXFISA-N Ethanolamine Oleate Chemical compound NCCO.CCCCCCCC\C=C/CCCCCCCC(O)=O KGWDUNBJIMUFAP-KVVVOXFISA-N 0.000 description 8
- 238000005265 energy consumption Methods 0.000 description 7
- 239000007787 solid Substances 0.000 description 7
- 239000000571 coke Substances 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 5
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000006555 catalytic reaction Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229910002651 NO3 Inorganic materials 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 2
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 2
- 239000004327 boric acid Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004317 sodium nitrate Substances 0.000 description 2
- 235000010344 sodium nitrate Nutrition 0.000 description 2
- 229940001516 sodium nitrate Drugs 0.000 description 2
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- DPDMMXDBJGCCQC-UHFFFAOYSA-N [Na].[Cl] Chemical compound [Na].[Cl] DPDMMXDBJGCCQC-UHFFFAOYSA-N 0.000 description 1
- 229910021538 borax Inorganic materials 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- GVPFVAHMJGGAJG-UHFFFAOYSA-L cobalt dichloride Chemical compound [Cl-].[Cl-].[Co+2] GVPFVAHMJGGAJG-UHFFFAOYSA-L 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000009851 ferrous metallurgy Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- -1 permanganate Chemical compound 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000004328 sodium tetraborate Substances 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses an additive for saving energy in the process of sintering iron ore. The additive is aminoethanol, which has a common name of ethanolamine. The using amount of the ethanolamine is 0.06 to 0.3 percent of the mass of coke powder for sintering. During use, the ethanolamine is dissolved in water to be prepared into a solution; adding the aqueous solution into the coke powder, mixing uniformly in advance; and mixing with blended ore and a fusing agent, and pelletizing for sintering. The additive can improve the combustion efficiency of the coke powder in the sintering process, reduce consumption of solid fuel, and improve the yield and quality of the sintered ore. The additive has the characteristics of wide sources, low cost, environmental friendliness and the like.
Description
Technical field
The present invention relates to a kind of additive, particularly relate to a kind of energy-conservation additive of agglomeration for iron mine that is used for.
Background technology
Agglomerate is the main raw material of China's blast furnace ironmaking, accounts for into 70%～80% of stove iron-bearing material.In the steel manufacture process, the sintering circuit energy consumption accounts for about 10% of Iron and Steel Production total energy consumption, is only second to ironmaking, is second big power consumer of Iron and Steel Production.The sintering circuit energy consumption mainly comprises solid fuel consumption, power consumption, igniting gas consumption etc., and wherein solid fuel consumption is the major portion of sintering energy consumption, accounts for 75%～80%.In recent years, although China's sintering energy consumption descends to some extent, but still be higher than the about 10～15kg/t-agglomerate of energy consumption level of advanced country in the world.Therefore, in the current main flow of advocating low-carbon economy, how when guaranteeing sintering mineral products, quality, reduce SINTERING PRODUCTION energy consumption and cost to greatest extent, be the much-talked-about topic in ferrous metallurgy field always.
Can reach the purpose of sintered, energy saving with addition of suitable additive.As " high-efficiency energy-conservation sintering additive " (application number: 200810031969.X), by BaO, CaO, MgO, MgCl
2, CaCl
2Or contain in the carbonate, nitrate, permanganate, borate of above-mentioned oxide compound a kind of, two or more, or boric acid and methacrylate polymer and Type 3U are prepared from; " additive of agglomeration for iron mine " (application number: 200510031648.6), consist of: sodium-chlor 30%～40%, SODIUMNITRATE 30%～40%, iron trichloride 10%～15%, cobalt chloride 1%～5%, lime 10%～20%, polyvinyl alcohol 1%; " sintered at ultra low temperature mineralising additive for saving energy " (application number: 200310124461.1), it contains very low temperature mineralizer 10%～60%, oxygenation agent 10%～30%, fusing agent 10%～40%, catalyzer 10%～40%, pore former 0～30%, and mixed preparing forms by weight percentage; " sintering catalysis burning-rate accelerator and preparation method " (application number: 200710037500.2), the prescription of this sintering catalysis burning-rate accelerator is: wilkinite 3%～10%, borax 8%～15%, boric acid 20%～40%, iron trichloride 2%～10%, SODIUMNITRATE 15%～30%, (NH
4)
2S
2O
86%～20%.
Above-mentioned additive has played certain effect to the yield and quality that reduces sintering solid fuel consumption, raising agglomerate, but above additive all is to be mixed with by multiple material to form, the grade (as containing the wilkinite additive) that adds the meeting reduction agglomerate that has behind the additive, the meeting that has brings disadvantageous effect (as boron-containing additive) for the metallurgical performance of agglomerate, and the minority additive also can corrode agglomerating plant, contaminate environment (as containing chlorine additive).
Summary of the invention
Technical problem to be solved by this invention provides and a kind ofly is used to strengthen that the agglomeration for iron mine process realizes sintered, energy saving is used for the energy-conservation additive of agglomeration for iron mine.
In order to solve the problems of the technologies described above, the energy-conservation additive of agglomeration for iron mine that is used for provided by the invention, its composition is a monoethanolamine, the popular name thanomin, it adds mass percent in the sintering coke powder be 0.6～3 ‰.
That adopts technique scheme is used for the energy-conservation additive of agglomeration for iron mine, during use thanomin is dissolved in the water, and with the aqueous solution and sintering coke powder mixing, mixes with mixing ore deposit, flux afterwards then, is used for sintering after the granulation.Additive provided by the invention is the burning of coke powder in the energy catalysis sinter mixture in sintering process, improve the efficiency of combustion of coke powder, thereby reach the yield rate that improves sintering velocity, sinter strength and agglomerate, thereby can reduce coke powder consumption in the sintering process, reduce solid-fuelled consumption, reach the purpose that sintered, energy saving reduces discharging.
Compare with additives such as boracic, nitrate, the additive that the present invention developed in sintering process, can not produce environmental pollution and equipment corrosion etc. problem, it is little to have consumption, and characteristics such as the source is wide, cost is low, environmental friendliness, and very broad prospect for its application is arranged.
Embodiment
The invention will be further described below in conjunction with embodiment.
Reference test: the coke powder consumption is 5.6%, basicity is 2.0, dioxide-containing silica is 4.85% in the sinter mixture, content of magnesia is 2.2%, mixture moisture 7.8%～8.4%, not doping, sintered ore rotary drum strength is 63.60%, yield rate is 77.56%, and utilization coefficient is 1.505t/m
2H, solid burnup are 61.21Kg/t.
When using additive, compound composition, sintering process condition and benchmark experiment are identical.
Embodiment 1: additive component is a monoethanolamine, the popular name thanomin, and it adds mass percent in the sintering coke powder be 0.6 ‰, be made into behind the aqueous solution and the coke powder mixing, dosage of coke 5.6%, sintered ore rotary drum strength are 63.61%, yield rate is 77.61%, and utilization coefficient is 1.510t/m
2H, solid burnup are 61.01Kg/t, compare with reference test, and be 0.6 ‰ o'clock in additive amount, agglomerate output increases, but amplitude is little.
Embodiment 2: additive component is a monoethanolamine, the popular name thanomin, and it adds mass percent in the sintering coke powder be 1.2 ‰, be made into behind the aqueous solution and the coke powder mixing, dosage of coke 5.6%, sintered ore rotary drum strength are 64.13%, yield rate is 79.66%, and utilization coefficient is 1.578t/m
2H, solid burnup are 59.17Kg/t, compare with reference test, and agglomerate output has improved 4.85%, and solid fuel consumption reduces 2.04Kg/t.
Embodiment 3: additive component is a monoethanolamine, the popular name thanomin, and it adds mass percent in the sintering coke powder be 1.8 ‰, be made into behind the aqueous solution and the coke powder mixing, dosage of coke 5.6%, sintered ore rotary drum strength are 64.67%, yield rate is 80.24%, and utilization coefficient is 1.694t/m
2H, solid burnup are 58.70Kg/t, compare with the benchmark experiment, and agglomerate output has improved 12.56%, and solid fuel consumption reduces 2.51Kg/t.
Embodiment 4: additive component is a monoethanolamine, the popular name thanomin, and it adds mass percent in the sintering coke powder be 2.4 ‰, be made into behind the aqueous solution and the coke powder mixing, dosage of coke 5.6%, sintered ore rotary drum strength are 65.20%, yield rate is 80.39%, and utilization coefficient is 1.736t/m
2H, solid burnup are 58.34Kg/t, compare with the benchmark experiment, and agglomerate output has improved 15.35%, and solid fuel consumption reduces 2.87Kg/t.
Embodiment 5: additive component is a monoethanolamine, the popular name thanomin, and it adds mass percent in the sintering coke powder be 3.0 ‰, be made into behind the aqueous solution and the coke powder mixing, dosage of coke 5.6%, sintered ore rotary drum strength are 63.07%, yield rate is 78.65%, and utilization coefficient is 1.663t/m
2H, solid burnup are 60.25Kg/t, compare with the benchmark experiment, though additive be increased to a certain amount of after because sintering velocity and heat transfer rate do not match, influence the agglomerate yield and quality, but agglomerate output has still improved 10.50%, and solid fuel consumption reduces 0.96Kg/t.
Embodiment 6: additive component is a monoethanolamine, the popular name thanomin, and it adds mass percent in the sintering coke powder be 2.4 ‰, be made into behind the aqueous solution and the coke powder mixing, dosage of coke 5.3%, sintered ore rotary drum strength are 64.31%, yield rate is 78.27%, and utilization coefficient is 1.615t/m
2H, solid burnup are 58.45Kg/t, compare with the benchmark experiment, and agglomerate output has improved 7.31%, and solid fuel consumption reduces 2.76Kg/t.
Claims (1)
1. one kind is used for the energy-conservation additive of agglomeration for iron mine, it is characterized in that: composition is a monoethanolamine, and described monoethanolamine adds mass percent in the sintering coke powder be 0.6～3 ‰.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110120935XA CN102206745A (en) | 2011-05-11 | 2011-05-11 | Additive for saving energy in process of sintering iron ore |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110120935XA CN102206745A (en) | 2011-05-11 | 2011-05-11 | Additive for saving energy in process of sintering iron ore |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102206745A true CN102206745A (en) | 2011-10-05 |
Family
ID=44695803
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110120935XA Pending CN102206745A (en) | 2011-05-11 | 2011-05-11 | Additive for saving energy in process of sintering iron ore |
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| Country | Link |
|---|---|
| CN (1) | CN102206745A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113388745A (en) * | 2021-06-15 | 2021-09-14 | 中国科学院过程工程研究所 | Method for extracting valuable components from niobium-iron rutile without fluorine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1237616A (en) * | 1998-05-28 | 1999-12-08 | 中国科学院化工冶金所 | Coal-saving agent |
| KR20010114074A (en) * | 2000-06-21 | 2001-12-29 | 이구택 | Sintered ore having low reduction degradation at low temperature |
| CN1784483A (en) * | 2003-05-10 | 2006-06-07 | 吴美惠 | Compositon for preventing scaling,excluding of soot,clinker and sludge,and controlling flame in combustion apparatus |
| CN101225343A (en) * | 2007-10-15 | 2008-07-23 | 林树森 | Coal-saving combustion-supporting additive |
| CN101372640A (en) * | 2007-08-24 | 2009-02-25 | 北京金源化学集团有限公司 | Method for adding coal catalyst and additive |
-
2011
- 2011-05-11 CN CN201110120935XA patent/CN102206745A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1237616A (en) * | 1998-05-28 | 1999-12-08 | 中国科学院化工冶金所 | Coal-saving agent |
| KR20010114074A (en) * | 2000-06-21 | 2001-12-29 | 이구택 | Sintered ore having low reduction degradation at low temperature |
| CN1784483A (en) * | 2003-05-10 | 2006-06-07 | 吴美惠 | Compositon for preventing scaling,excluding of soot,clinker and sludge,and controlling flame in combustion apparatus |
| CN101372640A (en) * | 2007-08-24 | 2009-02-25 | 北京金源化学集团有限公司 | Method for adding coal catalyst and additive |
| CN101225343A (en) * | 2007-10-15 | 2008-07-23 | 林树森 | Coal-saving combustion-supporting additive |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113388745A (en) * | 2021-06-15 | 2021-09-14 | 中国科学院过程工程研究所 | Method for extracting valuable components from niobium-iron rutile without fluorine |
| CN113388745B (en) * | 2021-06-15 | 2022-09-02 | 中国科学院过程工程研究所 | Method for extracting valuable components from niobium-iron rutile without fluorine |
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Application publication date: 20111005 |