CN101974681A - 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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- CN101974681A CN101974681A CN 201010538007 CN201010538007A CN101974681A CN 101974681 A CN101974681 A CN 101974681A CN 201010538007 CN201010538007 CN 201010538007 CN 201010538007 A CN201010538007 A CN 201010538007A CN 101974681 A CN101974681 A CN 101974681A
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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 through the weathered ore after the sodium agent modification to belong to the binding agent field as the purposes in the pellet binder.
Background technology
Wilkinite is produced acidic oxidation pelletizing binding agent as iron ore concentrate, 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, and 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 as the purposes in the pellet binder.
As the purposes in the pellet binder, wherein, the TFe content in the described weathered ore is 15～30% through the weathered ore after the sodium agent modification, 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 described weathered ore after sodium agent modification is 1.6～2.3ml/g, the sucking amount of described weathered ore after sodium agent modification is 8～15ml/g, and the water-intake rate of described 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 described pellet binder is preferably 1.9～2.3ml/g, and the sucking amount of described pellet binder is preferably 12～15ml/g, and the water-intake rate of described pellet binder is preferably 340～390%.
Further, above-mentioned weathered ore preferably adopts following method to carry out sodium modification: weathered ore and sodium agent are added wetting water gaging mixing by weight 45～80: 3～7, and ageing 10～18 days, drying is pulverized, and makes the micro mist of granularity-200 order content＞90%.Further, in order to make the sodium modification better effects if, make the binding agent that also adds pellet binder gross weight 8～12% behind the micro mist of granularity-200 order content＞90% (pelletizing conventional with binding agent 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
As the purposes in the pellet binder, wherein, the TFe content in the described weathered ore is 15～30% through the weathered ore after the sodium agent modification, 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 described weathered ore after sodium agent modification is 1.6～2.3ml/g, the sucking amount of described weathered ore after sodium agent modification is 8～15ml/g, and the water-intake rate of described 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 described pellet binder is preferably 1.9～2.3ml/g, and the sucking amount of described pellet binder is preferably 12～15ml/g, and the water-intake rate of described pellet binder is preferably 340～390%.
Further, above-mentioned weathered ore preferably adopts following method to carry out sodium modification: weathered ore and sodium agent are added wetting water gaging mixing by weight 45～80: 3～7, and ageing 10～18 days, drying is pulverized, and makes the micro mist of granularity-200 order content＞90%.Further, in order to make the sodium modification better effects if, make the binding agent that also adds pellet binder gross weight 8～12% behind the micro mist of granularity-200 order content＞90% (pelletizing conventional with binding agent 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).
Below in conjunction with embodiment the specific embodiment of the present invention is further described, does not therefore 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, make the micro mist of granularity-200 order content＞90%, allocate 10% wilkinite into, promptly get pellet binder of the present invention.
After testing, the main chemical group grouping of pellet binder of the present invention is: 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%.
Test the application of routine 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 processing 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 (6)
- Through the weathered ore after the sodium agent modification as the purposes in the pellet binder, wherein, the TFe content in the described weathered ore is 15～30%, FeO content is 5.1～9.0%, TiO 2Content is 5.0～9.2%, V 2O 5Content is 0.10～0.20%.
- 2. purposes according to claim 1, it is characterized in that: the colloid index of described weathered ore after sodium agent modification is 21～40%, the expansion capacity of described weathered ore after sodium agent modification is 1.6～2.3ml/g, the sucking amount of described weathered ore after sodium agent modification is 8～15ml/g, and the water-intake rate of described weathered ore after sodium agent modification is 300～400%.
- 3. purposes according to claim 2, it is characterized in that: the colloid index of described weathered ore after sodium agent modification is 37～40%, the expansion capacity of described pellet binder is 1.9～2.3ml/g, the sucking amount of described pellet binder is 12～15ml/g, and the water-intake rate of described pellet binder is 340～390%.
- 4. according to each described purposes of claim 1～3, it is characterized in that described weathered ore adopts following method to carry out sodium modification: weathered ore and sodium agent are added wetting water gaging mixing by weight 45～80: 3～7, ageing 10～18 days, dry, pulverize, make the micro mist of granularity-200 order content＞90%.
- 5. purposes according to claim 4 is characterized in that: make the binding agent that also adds pellet binder gross weight 8～12% behind the micro mist of granularity-200 order content＞90%.
- 6. according to each described purposes of claim 1～5, 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 true CN101974681A (en) | 2011-02-16 |
| CN101974681B CN101974681B (en) | 2012-05-23 |
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Family Applications (1)
| 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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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103614552A (en) * | 2013-12-13 | 2014-03-05 | 攀枝花钢城集团米易瑞地矿业有限公司 | Method of preparing acidic oxidized pellet binder by weathered ores |
| 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 |
Citations (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 |
| CN101215632A (en) * | 2007-12-27 | 2008-07-09 | 钢铁研究总院 | Bonding agent for iron ore pellet and preparation method thereof |
| CN101705355A (en) * | 2009-12-23 | 2010-05-12 | 任瑞刚 | Technique for producing metallurgical pellets |
-
2010
- 2010-11-10 CN CN2010105380070A patent/CN101974681B/en not_active Expired - Fee Related
Patent Citations (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 |
| CN101215632A (en) * | 2007-12-27 | 2008-07-09 | 钢铁研究总院 | Bonding agent for iron ore pellet and preparation method thereof |
| CN101705355A (en) * | 2009-12-23 | 2010-05-12 | 任瑞刚 | Technique for producing metallurgical pellets |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103614552A (en) * | 2013-12-13 | 2014-03-05 | 攀枝花钢城集团米易瑞地矿业有限公司 | Method of preparing acidic oxidized pellet binder by weathered ores |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101974681B (en) | 2012-05-23 |
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