CN101974681B - Application of weathered ores modified by sodiumizing agent as pellet binder - Google Patents
Application of weathered ores modified by sodiumizing agent as pellet binder Download PDFInfo
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- CN101974681B CN101974681B CN2010105380070A CN201010538007A CN101974681B CN 101974681 B CN101974681 B CN 101974681B CN 2010105380070 A CN2010105380070 A CN 2010105380070A CN 201010538007 A CN201010538007 A CN 201010538007A CN 101974681 B CN101974681 B CN 101974681B
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Abstract
The invention relates to the application of weathered ores modified by a sodiumizing agent as pellet binder, which belongs to the field of binder. By means of the invention, the technical problem of providing the application of weathered ores modified by sodiumizing agent as the pellet binder is solved. The invention is characterized in that in the weathered ore, the TFe content is 15 to 30 percent, the FeO content is 5.1 to 9.0 percent, the TiO2 content is 5.0 to 9.2 percent, and the V2O5 content is 0.10 to 0.20 percent; and the sodiumizing agent can be a sodiumizing agent for bentonite modification, such as at least one of sodium carbonate, sodium chloride and sodium hydroxide. The invention solves the long-standing technical problem that the weathered ores are difficult to use, so that the resources such as iron, titanium and vanadium and the like in the weathered ores can be fully utilized, thereby avoiding the waste of resources. The invention provides a new way to utilize the weathered ores, and has a broad application prospect.
Description
Technical field
The present invention relates to be used as the purposes in the pellet binder, belong to the sticker field through the weathered ore after the sodium agent modification.
Background technology
Wilkinite is produced the acidic oxidation pelletizing as iron ore concentrate and is used sticker; Drying to material balling-up and green-ball; Warm plays important consolidation; But behind wilkinite, acidic oxidation pellet TFe grade and production cost are all had considerable influence, select the substitute of super quality and competitive price is metallargist's key subjects always.
Baima iron ore of China's Panzhihua Region is super-huge hillside open pit, and its weathered ore content accounts for 20% (its quantity reaches more than 100,000,000 tons), and the TFe content of weathered ore is 15～30%, and FeO content is 5.1～9.0%, TiO
2Content is 5.0～9.2%, V
2O
5Content is 0.10～0.20%.Because the weathered ore silt content is higher, the secondary variation of oxides-containing iron generally waits reason, causes it to be difficult to be utilized, and causes the significant wastage to resources such as iron, titanium, vanadium.
Summary of the invention
Technical problem to be solved by this invention provides through the weathered ore after the sodium agent modification and is being used as the purposes in the pellet binder.
Be used as the purposes in the pellet binder through the weathered ore after the sodium agent modification, wherein, the TFe content in the said weathered ore is 15～30%, and FeO content is 5.1～9.0%, TiO
2Content is 5.0～9.2%, V
2O
5Content is 0.10～0.20%.Wherein, described sodium agent can be adopted the sodium agent of bentonite modified usefulness, as: at least a in yellow soda ash, sodium-chlor, the sodium hydroxide.
Wherein, The colloid index of above-mentioned weathered ore after sodium agent modification is 21～40%; The expansion capacity of said weathered ore after sodium agent modification is 1.6～2.3ml/g; The sucking amount of said weathered ore after sodium agent modification is 8～15ml/g, and the water-intake rate of said weathered ore after sodium agent modification is 300～400%.Further; The colloid index of above-mentioned weathered ore after sodium agent modification is preferably 37～40%; The expansion capacity of said pellet binder is preferably 1.9～2.3ml/g, and the sucking amount of said pellet binder is preferably 12～15ml/g, and the water-intake rate of said pellet binder is preferably 340～390%.
Further, above-mentioned weathered ore preferably adopts following method to carry out sodium modification: with weathered ore and sodium agent by weight 45～80: 3～7 add wetting water gaging mixing, ageing 10～18 days, drying is pulverized, and processes the micro mist of granularity-200 order content＞90%.Further, in order to make the sodium modification better effects if, process the sticker that also adds pellet binder gross weight 8～12% behind the micro mist of granularity-200 order content＞90% (pelletizing conventional with sticker as: wilkinites etc. get final product).
Further, above-mentioned weathered ore is preferably Baima iron ore weathered ore (being Baima iron ore weathered ore of Chinese Panzhihua Region).
The invention solves the long-standing technical barrier that is difficult to utilize of weathered ore, make resources such as iron in the weathered ore, titanium, vanadium be fully used, avoided the wasting of resources.The present invention has broad application prospects for the utilization of weathered ore provides a kind of new approach.
Embodiment
Be used as the purposes in the pellet binder through the weathered ore after the sodium agent modification, wherein, the TFe content in the said weathered ore is 15～30%, and FeO content is 5.1～9.0%, TiO
2Content is 5.0～9.2%, V
2O
5Content is 0.10～0.20%.Wherein, described sodium agent can be adopted the sodium agent of bentonite modified usefulness, as: at least a in yellow soda ash, sodium-chlor, the sodium hydroxide.
Wherein, The colloid index of above-mentioned weathered ore after sodium agent modification is 21～40%; The expansion capacity of said weathered ore after sodium agent modification is 1.6～2.3ml/g; The sucking amount of said weathered ore after sodium agent modification is 8～15ml/g, and the water-intake rate of said weathered ore after sodium agent modification is 300～400%.Further; The colloid index of above-mentioned weathered ore after sodium agent modification is preferably 37～40%; The expansion capacity of said pellet binder is preferably 1.9～2.3ml/g, and the sucking amount of said pellet binder is preferably 12～15ml/g, and the water-intake rate of said pellet binder is preferably 340～390%.
Further, above-mentioned weathered ore preferably adopts following method to carry out sodium modification: with weathered ore and sodium agent by weight 45～80: 3～7 add wetting water gaging mixing, ageing 10～18 days, drying is pulverized, and processes the micro mist of granularity-200 order content＞90%.Further, in order to make the sodium modification better effects if, process the sticker that also adds pellet binder gross weight 8～12% behind the micro mist of granularity-200 order content＞90% (pelletizing conventional with sticker as: wilkinites etc. get final product).
Further, above-mentioned weathered ore is preferably Baima iron ore weathered ore (being Baima iron ore weathered ore of Chinese Panzhihua Region).
Do further description below in conjunction with the embodiment specific embodiments of the invention, therefore do not limit the present invention among the described scope of embodiments.
The preparation of embodiment pellet binder of the present invention
With weathered ore 60kg, sodium agent (yellow soda ash) 5kg adds water 35kg mixing, pushes stirring and evenly mixing fast; The extruding spacing is selected 2mm, and ageing 14 days is dried, and Raymond mill is levigate; Process the micro mist of granularity-200 order content＞90%, allocate 10% wilkinite into, promptly get pellet binder of the present invention.
Through detecting, the main chemical group of pellet binder of the present invention divides into groups to be: TFe:24.20%, FeO:8.32%, TiO
2: 5.74%, V
2O
5: 0.200%, moisture: 7.1%, granularity-200 order content: 94.90%.The colloid index of pellet binder of the present invention: 37.00%, expansion capacity: 2.00ml/g, sucking amount: 12.40ml/g, water-intake rate: 346.30%.
The application of Test Example pellet binder of the present invention
The pellet binder of the present invention of the foregoing description preparation is joined in the iron ore concentrate raw material in 3% ratio; Make ball, obtain raw pellet ore, (850 ℃ of the roasting preheating temperature of roasting then; Warm up time 20min; 1200 ℃ of maturing temperatures, roasting time 30min), make finished ball nodulizing (also claiming ripe pellet).
Compare with the same amount wilkinite, iron ore concentrate batch identical makes the finished ball nodulizing by above-mentioned process step.Respectively raw pellet ore and finished ball nodulizing are carried out Performance Detection, as a result shown in the table 1.
Table 1 performance test results
Claims (4)
1. be used as the purposes in the pellet binder through the weathered ore after the sodium agent modification, wherein, the TFe content in the said weathered ore is 15～30%, and FeO content is 5.1～9.0%, TiO
2Content is 5.0～9.2%, V
2O
5Content is 0.10～0.20%; The sodium modification method of weathered ore is: with weathered ore and sodium agent by weight 45～80: 3～7 add wetting water gaging mixing; Ageing 10～18 days, drying is pulverized; Process the micro mist of granularity-200 order content＞90%, add the wilkinite and the mixing of pellet binder gross weight 8～12% then; Described sodium agent is at least a in yellow soda ash, sodium-chlor, the sodium hydroxide.
2. purposes according to claim 1; It is characterized in that: the colloid index of said weathered ore after sodium agent modification is 21～40%; The expansion capacity of said weathered ore after sodium agent modification is 1.6～2.3ml/g; The sucking amount of said weathered ore after sodium agent modification is 8～15ml/g, and the water-intake rate of said weathered ore after sodium agent modification is 300～400%.
3. purposes according to claim 2; It is characterized in that: the colloid index of said weathered ore after sodium agent modification is 37～40%; The expansion capacity of said pellet binder is 1.9～2.3ml/g; The sucking amount of said pellet binder is 12～15ml/g, and the water-intake rate of said pellet binder is 340～390%.
4. according to each described purposes of claim 1～3, it is characterized in that: described weathered ore is Baima weathered ore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105380070A CN101974681B (en) | 2010-11-10 | 2010-11-10 | Application of weathered ores modified by sodiumizing agent as pellet binder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105380070A CN101974681B (en) | 2010-11-10 | 2010-11-10 | Application of weathered ores modified by sodiumizing agent as pellet binder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101974681A CN101974681A (en) | 2011-02-16 |
| CN101974681B true CN101974681B (en) | 2012-05-23 |
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ID=43574588
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105380070A Expired - Fee Related CN101974681B (en) | 2010-11-10 | 2010-11-10 | Application of weathered ores modified by sodiumizing agent as pellet binder |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103614552B (en) * | 2013-12-13 | 2015-09-02 | 攀枝花钢城集团米易瑞地矿业有限公司 | Weathered ore prepares the method for acidic oxidation pellet binder |
| CN109338102A (en) * | 2018-12-05 | 2019-02-15 | 攀枝花钢城集团米易瑞地矿业有限公司 | The method for preparing pellet binder using vanadium titano-magnetite weathered ore |
| CN111616039A (en) * | 2020-06-08 | 2020-09-04 | 淮南市益农瓜果产销服务有限公司 | Soilless tank planting method for pollution-free milk-flavor strawberries |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1069110C (en) * | 1999-04-30 | 2001-08-01 | 中南工业大学 | Technology for comprehensive utilization of V-Ti magnetite |
| CN100562589C (en) * | 2007-12-27 | 2009-11-25 | 钢铁研究总院 | A kind of iron ore pellets sodium bentonite based binder and preparation method thereof |
| CN101705355B (en) * | 2009-12-23 | 2011-06-29 | 任瑞刚 | Technique for producing metallurgical pellets |
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2010
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| CN101974681A (en) | 2011-02-16 |
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