CN1962898A - Iron ore pellet organic binder and its using method - Google Patents
Iron ore pellet organic binder and its using method Download PDFInfo
- Publication number
- CN1962898A CN1962898A CN 200510124435 CN200510124435A CN1962898A CN 1962898 A CN1962898 A CN 1962898A CN 200510124435 CN200510124435 CN 200510124435 CN 200510124435 A CN200510124435 A CN 200510124435A CN 1962898 A CN1962898 A CN 1962898A
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- China
- Prior art keywords
- pellet
- water
- additive
- breeze
- balling
- 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.)
- Pending
Links
- 239000008188 pellet Substances 0.000 title claims abstract description 39
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims description 60
- 229910052742 iron Inorganic materials 0.000 title claims description 30
- 238000000034 method Methods 0.000 title abstract description 12
- 239000011230 binding agent Substances 0.000 title description 2
- 239000000654 additive Substances 0.000 claims abstract description 26
- 230000000996 additive effect Effects 0.000 claims abstract description 21
- 150000001875 compounds Chemical class 0.000 claims abstract description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 3
- 125000000524 functional group Chemical group 0.000 claims abstract description 3
- 238000004519 manufacturing process Methods 0.000 claims abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 229920003169 water-soluble polymer Polymers 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 4
- -1 methoxyl group Chemical group 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 claims description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 2
- 150000001768 cations Chemical class 0.000 claims description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 2
- 150000002500 ions Chemical class 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 125000004151 quinonyl group Chemical group 0.000 claims description 2
- 230000000630 rising effect Effects 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 238000009423 ventilation Methods 0.000 claims description 2
- 230000000536 complexating effect Effects 0.000 claims 1
- 229920000620 organic polymer Polymers 0.000 claims 1
- 230000033116 oxidation-reduction process Effects 0.000 claims 1
- 229920001059 synthetic polymer Polymers 0.000 claims 1
- 239000013522 chelant Substances 0.000 abstract 1
- 238000005336 cracking Methods 0.000 abstract 1
- 229920002521 macromolecule Polymers 0.000 abstract 1
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 8
- 239000002994 raw material Substances 0.000 description 7
- 239000012535 impurity Substances 0.000 description 4
- 101000693985 Homo sapiens Twinkle mtDNA helicase Proteins 0.000 description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 102100027193 Twinkle mtDNA helicase Human genes 0.000 description 3
- 238000013019 agitation Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229920002401 polyacrylamide Polymers 0.000 description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000002194 synthesizing effect Effects 0.000 description 3
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 2
- 230000000274 adsorptive effect Effects 0.000 description 2
- 239000000571 coke Substances 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000005453 pelletization Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- PXFBZOLANLWPMH-UHFFFAOYSA-N 16-Epiaffinine Natural products C1C(C2=CC=CC=C2N2)=C2C(=O)CC2C(=CC)CN(C)C1C2CO PXFBZOLANLWPMH-UHFFFAOYSA-N 0.000 description 1
- 208000004117 Congenital Myasthenic Syndromes Diseases 0.000 description 1
- 101000987090 Homo sapiens MORF4 family-associated protein 1 Proteins 0.000 description 1
- 102100027862 MORF4 family-associated protein 1 Human genes 0.000 description 1
- 229910000805 Pig iron Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 201000006623 congenital myasthenic syndrome 10 Diseases 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009851 ferrous metallurgy Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 125000003010 ionic group Chemical group 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000006259 organic additive Substances 0.000 description 1
- 229920005596 polymer binder Polymers 0.000 description 1
- 239000002491 polymer binding agent Substances 0.000 description 1
- 229940079832 sodium starch glycolate Drugs 0.000 description 1
- 229920003109 sodium starch glycolate Polymers 0.000 description 1
- 239000008109 sodium starch glycolate Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses an additive and using method of artificial block-ore pellet ore, which is characterized by the following: using organic macromolecule with oxygen functional group and Al+++, Fe+++, Ca++ to form complex compound and chelate; forming fixed net-and-net cubic structure and astopic steam penetrating net of multiple active functional groups and soluble polymer; improving falling strength and dry strength and cracking temperature of green-ball; reducing returning ore obviously with strong binding power; improving production without adding ash.
Description
One, technical field: the present invention relates to a kind of pellet additive, is the improvement of pellet additive.Belong to additive and using method thereof that the pellet among the ferrous metallurgy industry ore agglomerates uses.
Two, technical background: along with the development of Iron And Steel Industry, the ironmaking desired raw material is more and more big, and can be less and less directly into the rich ore of stove, though especially China's iron ore reserves occupy the 5th in the world, wherein the rich ore of iron content more than 50% only accounts for 4%, the overwhelming majority is for containing the lean ore of harmful impurity, and this class ore is must fine grinding selected after agglomeration just can be gone into the stove smelting.Pellet is better than other ore agglomerateses with its excellent metallurgical performance and tangible blast-furnace smelting effect, causes the attention of domestic and international iron and steel enterprise day by day.Researching and producing of China's iron ore pellets starts from the fifties.Through the development of many decades, the development of and processing unit theoretical from balling-up is near foreign level, but the additive of balling-up is to continue to use traditional additive-slaked lime, Wingdale, wilkinite abroad always, at present based on wilkinite.External also have the A Ketai that uses pendant benefit and Ciba, is a kind of high polymer binder of high effect nontoxic, do not contain impurity such as S, P, and bond effect is better than wilkinite, and consumption is little, only is bentonitic 1/5～1/100.But finished ball ultimate compression strength is on the low side, and China does not still have producer and uses.
Wilkinite is as the history of the existing many decades of pelletizing additive.It is the high-quality additive that at present domestic and international pellet manufacturer generally acknowledges, it not only can improve the dropping strength of green-ball, the break temperature when especially improving the green-ball drying, but bentonitic shortcoming also is fairly obvious, wilkinite is a kind of inorganic mineral, mainly by SiO
265～70%, Al
2O
326～28% form, and wilkinite is generally 1～4% in the add-on of pellet, has reduced the grade of the full iron of pellet.Increased the ash (SiO of pellet
2+ Al
2O
3) reduced the reductibility of pellet, because of wilkinite is a kind of inorganic mineral, after roasting, still exist in the pellet, concerning pellet manufacturer, the full iron 1% of every reduction, less discount of ten per cent～30 yuan/ton, by the producer that produces 1000000 tons of pellets per year, year financial loss is more than 1,000 ten thousand yuan.Concerning iron and steel enterprise, the full iron grade of pellet is higher, under identical working condition, improve output, reduced the coke ratio energy consumption, gone into the measuring and calculating of stove according to the pig iron smelting fine fodder, full iron decline 1% of pellet or ash increase by 1%, coke ratio increases by 2%, and output descends 3%, is an enormous economic loss.
Three, summary of the invention: the object of the present invention is to provide a kind of energy to satisfy the additive of making ball performance and metallurgical performance and can improve compression strength of green pellet, dropping strength, dry strength, break temperature, do not reduce full iron grade, the organic additive that does not increase ash and using method thereof again.
The present invention is synthetic with one or more and humate in the water-soluble polymer of different physics-chem characteristics; Or water-soluble polymer polyvinyl alcohol (PVA), sodium starch glycolate (CMS), polyacrylamide (PAM), the synthetic SHN that is called for short of more than one in the polyoxyethylene (PEO).Water-soluble polymer contains ionic group, but have good hydrophilicity viscous water and multiple metal ion and form the heavy-gravity gel, can with the characteristic of the affine absorption of many materials, cohesion, drag reduction, bridging, the oxygen-containing functional group of humate macromolecular structure can be combined into complex compound and inner complex with multivalent metal cations such as Al+++, Fe+++, Ca++, form the three-dimensional arrangement of firm online screening, positively charged ion is had extremely strong adsorptive power, hydratability, cohesive force and good hydrophilicity, dispersiveness.Through the fine iron breeze of fine grinding, has great specific surface area, 1500～1900cm
2/ g; therefore also just has bigger surface energy; when they contact with surrounding medium; particle surface demonstrates static charge; the balance mode negative charge of static charge mainly at inner face and positive charge mainly in outer rim; water molecules there is adsorptive power; particle is drawn close mutually; owing to added shn in the breeze; form complex compound and inner complex with mineral powder granular after meeting water; constitute the three-dimensional arrangement of online screening; increased the plasticity-of breeze on the one hand; improved the processability of breeze; the aspect has increased cohesive force in addition; particle is drawn close more closely; pelletizing moisture content is oozed from inside to outside; therefore; the wet tenacity and the dry strength of pellet are greatly enhanced, owing to contain aromatic proton among the shn; hydroxyl; carboxyl; carbonyl; quinonyl; methoxyl group isoreactivity group, these active groups form has the ventilation property special to water vapor; thereby improved green-ball exsiccant burst temperature; because shn is organism,, only stay micro-ash in pellet at after-flame fully more than 800 ℃; so do not reduce the full iron grade of pellet, do not increase the ash of pellet yet.
Using method: be that carrier is made dispersed liquid with water 1,, its quality index: viscosity≤40 second (being coated with 4 glasss), solid substance≤8%, ton ball consumption≤4%.During use, on pan-pelletizer, spray and drip the balling-up that combines.SHN pellet additive liquid-type need use certain pressure to spray, and sets up pressure pump or rising additive storage tank reaches required pressure, and control balling-up breeze moisture content is less than 6.5%.2, make the solid state powder additive, being ground into-200 orders with the high grade iron breeze is that carrier is made pulvis, synthetic with in the water-soluble polymer one or more.Its proportioning: (a) fine iron breeze 50%, humate 10%, CMS25%, PAM14%, PEO1%.Its balling-up consumption 0.1%.(b) fine iron breeze 50%, humate 5%, CMS10%, PAM30%, PEO5%.Its balling-up consumption 0.1%.(c) fine iron breeze 90%, PAM5%, PEO5%, its consumption 0.4～0.5%.On stoving oven blanking port or belt, quantitatively add during use, and before balling-up, stir, control balling-up breeze moisture content 8.2～9.5% through feeding machine.
The present invention compared with prior art, the plasticity-that consumption is few, do not conform to impurity, cohesive force is strong, improved breeze, improved balling property, improve shatter strength of green pellet, wet tenacity and dry strength, improved green-ball exsiccant burst temperature, significantly reduced the rate of return mine, improved finished ball ultimate compression strength, simultaneously do not reduce full iron grade, do not increase detrimental impurity, ton ball cost is lower than wilkinite and has tangible economic benefit.
Embodiment 1 liquid-type
1, proportioning: humate 1%, pva1799:7%, pam0.1%, H
2O90%, dispersion agent a little.
2, above raw material is dissolved in water respectively.
3, under agitation with three kinds of raw material synthesizing liquid SHN pellet additives.
4, using method: set up the additive hold-up vessel more than 2 meters at pan-pelletizer, allow its gravity flow spray and drip balling-up or pressure boost pump.Breeze moisture content should be controlled at less than 6% before the balling-up.Ton ball consumption is less than 3.5%.
Embodiment 2
1, proportioning: humate 1%, paa6%, pam0.1%, pva1799:3%, H
2O90%, dispersion agent a little.
2, with humate, PAA,, PAM, PVA be water-soluble respectively earlier.
3, under agitation with four kinds of raw material synthesizing liquid SHN pellet additives.
4, using method: with embodiment 1
Embodiment 3
1, humate 1%, cms1%, pam0.1%, pva1799:5%, H
2O90%, dispersion agent a little.
2, above raw material is dissolved in water respectively.
3, under agitation with three kinds of raw material synthesizing liquid SHN pellet additives.
4, using method: with embodiment 1
Embodiment 4 solid state powder types
1, proportioning: fine iron breeze 50%, humate 8%, cms5%, pam30%, PEO7%.
2, fine iron breeze is dried to moisture content and be crushed to-200 orders less than 1%.
3, by proportioning with above raw material and fine ore uniform mixing shn pellet additive.
4, using method: quantitatively add through feeding machine on stoving oven breeze blanking port or belt, and stir before balling-up, the moisture content after the control breeze oven dry is less than 8.5%, its balling-up consumption 0.1%.
Embodiment 5
1, proportioning: fine iron breeze 50%, humate 5%, pam39%, PEO5%.
2, fine iron breeze is crushed to-200 order fineness.
3, by the uniform mixing of proportioning and iron essence powder, shn pellet additive.
4, using method: with embodiment 4, balling-up consumption 0.1%
Embodiment 6
1, proportioning: fine iron breeze 85%.PAM9%, PEO1%, humate 5%.
2, fine iron breeze is crushed to-200 order fineness, and moisture content is less than 1%.
3, with fully mixed even the SHN pellet additive of above proportioning.
4, using method is with embodiment 4, consumption 0.3～0.5%.
Claims (4)
1, one or more in a kind of water-soluble polymer that uses different physics-chem characteristics and humate is synthetic or water-soluble polymer PVA, CMS, PAM, PEO in more than one synthetic SHN pellet additive, be the liquid and solid-state pellet additive abbreviation of carrier synthetic SHN with water and refined iron mine powder.Its feature: the oxygen-containing functional group of macromolecular structure can be combined into complex compound and inner complex with multivalent metal cations such as Al+++, Fe+++, Ca++, form the three-dimensional arrangement of firm online screening, possess hydrophilic property, complexing, ion exchangeable, oxidation-reduction quality; Contain hydroxyl, carboxyl, carbonyl, quinonyl, methoxyl group isoreactivity group, water vapor there is special ventilation property, can improve shatter strength of green pellet, dry strength and burst temperature, not reduce all iron content, do not increase the water miscible organic polymer pellet additive of ash.
2, the pellet additive of producing according to claim 1 is that carrier is made and liquidly used force (forcing) pump or rising hold-up vessel to spray through certain pressure from pan-pelletizer to drip a balling-up, its consumption≤4% with water.Its solid substance is more than 5%.The moisture of balling-up control breeze is less than 6% production method.
3, the pellet additive of producing according to claim 1 is carrier with fine iron breeze through being ground into-200 orders, make powder additive, add and stir with breeze before balling-up through feeding machine on blanking port after stoving oven breeze oven dry or the belt, its consumption is 0.1～0.5% production method.
4, according to claim 1 use in the water-soluble polymer one or more with humate, PAM, PEO in one or more synthetic liquid state pellet additives, its consumption is less than 4%, or one or more and CMS, PAM in the use water-soluble polymers, one or more synthetic pellet solid additives among the PEO, its balling-up consumption is less than 0.6%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510124435 CN1962898A (en) | 2005-11-10 | 2005-11-10 | Iron ore pellet organic binder and its using method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510124435 CN1962898A (en) | 2005-11-10 | 2005-11-10 | Iron ore pellet organic binder and its using method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1962898A true CN1962898A (en) | 2007-05-16 |
Family
ID=38082124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510124435 Pending CN1962898A (en) | 2005-11-10 | 2005-11-10 | Iron ore pellet organic binder and its using method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1962898A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101619387B (en) * | 2009-08-12 | 2011-06-15 | 中南大学 | Low-temperature concretion adhesive for cold press iron coke and preparation method thereof |
| CN102605178A (en) * | 2012-03-22 | 2012-07-25 | 滕先弟 | Iron-based pelletizing binder and preparation method thereof |
| CN103154280A (en) * | 2010-10-08 | 2013-06-12 | 新日铁住金株式会社 | Method for producing granulated iron ore raw material and granulated iron ore raw material |
| CN104004906A (en) * | 2014-03-12 | 2014-08-27 | 北京宇航同辉能源科技有限公司 | Pellet additive and preparation method thereof |
| CN104164560A (en) * | 2014-08-28 | 2014-11-26 | 中南大学 | Sodium humate adhesive solution for iron ore pellets as well as preparation method and application of sodium humate adhesive solution |
| CN104164559A (en) * | 2014-08-28 | 2014-11-26 | 中南大学 | Method for improving pelletizability of low-pelletizability iron concentrate |
| CN104513898A (en) * | 2013-09-30 | 2015-04-15 | 宝山钢铁股份有限公司 | High-reducibility pellet and preparation method thereof |
| CN107949645A (en) * | 2015-09-02 | 2018-04-20 | 巴斯夫欧洲公司 | Purposes of the hydrophobic associated copolymer as the adhesive of the granulation containing metallic ore |
| CN110004290A (en) * | 2019-04-25 | 2019-07-12 | 王勇 | A kind of metallurgical pellet binder and preparation method thereof |
| CN110155970A (en) * | 2019-06-12 | 2019-08-23 | 攀枝花学院 | Phosphate rock micropowder pellets and preparation method thereof |
| CN114921643A (en) * | 2022-03-11 | 2022-08-19 | 中南大学 | Composite organic binder and preparation method and application thereof |
-
2005
- 2005-11-10 CN CN 200510124435 patent/CN1962898A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101619387B (en) * | 2009-08-12 | 2011-06-15 | 中南大学 | Low-temperature concretion adhesive for cold press iron coke and preparation method thereof |
| CN103154280A (en) * | 2010-10-08 | 2013-06-12 | 新日铁住金株式会社 | Method for producing granulated iron ore raw material and granulated iron ore raw material |
| CN102605178B (en) * | 2012-03-22 | 2014-12-10 | 滕先弟 | Iron-based pelletizing binder and preparation method thereof |
| CN102605178A (en) * | 2012-03-22 | 2012-07-25 | 滕先弟 | Iron-based pelletizing binder and preparation method thereof |
| CN104513898A (en) * | 2013-09-30 | 2015-04-15 | 宝山钢铁股份有限公司 | High-reducibility pellet and preparation method thereof |
| CN104004906A (en) * | 2014-03-12 | 2014-08-27 | 北京宇航同辉能源科技有限公司 | Pellet additive and preparation method thereof |
| CN104164559A (en) * | 2014-08-28 | 2014-11-26 | 中南大学 | Method for improving pelletizability of low-pelletizability iron concentrate |
| CN104164560A (en) * | 2014-08-28 | 2014-11-26 | 中南大学 | Sodium humate adhesive solution for iron ore pellets as well as preparation method and application of sodium humate adhesive solution |
| CN104164559B (en) * | 2014-08-28 | 2016-11-30 | 中南大学 | A kind of method improving difficult pelletizing iron ore concentrate balling-up |
| CN107949645A (en) * | 2015-09-02 | 2018-04-20 | 巴斯夫欧洲公司 | Purposes of the hydrophobic associated copolymer as the adhesive of the granulation containing metallic ore |
| US11072840B2 (en) | 2015-09-02 | 2021-07-27 | Basf Se | Use of hydrophobically associating copolymers as binders for pelletizing metal containing ores |
| CN110004290A (en) * | 2019-04-25 | 2019-07-12 | 王勇 | A kind of metallurgical pellet binder and preparation method thereof |
| CN110155970A (en) * | 2019-06-12 | 2019-08-23 | 攀枝花学院 | Phosphate rock micropowder pellets and preparation method thereof |
| CN114921643A (en) * | 2022-03-11 | 2022-08-19 | 中南大学 | Composite organic binder and preparation method and application thereof |
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Application publication date: 20070516 |