CN102698871A - Ore dressing technology for treating vanadium titano-magnetite - Google Patents
Ore dressing technology for treating vanadium titano-magnetite Download PDFInfo
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- CN102698871A CN102698871A CN2012101985321A CN201210198532A CN102698871A CN 102698871 A CN102698871 A CN 102698871A CN 2012101985321 A CN2012101985321 A CN 2012101985321A CN 201210198532 A CN201210198532 A CN 201210198532A CN 102698871 A CN102698871 A CN 102698871A
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Abstract
The invention relates to an ore dressing technology for treating vanadium titano-magnetite. The technology comprises the following steps of: feeding crushed raw ore into a ball mill in a primary milling and grading closed path, and feeding primary graded overflow containing 40 to 50 percent of milled powder with the granularity of 200 meshes into a rough magnetic separator, wherein tailings in the rough magnetic separator are final tailings; demagnetizing the concentrate in the rough magnetic separator, then feeding for secondary grading, feeding secondary graded return sand into a secondary ball mill, returning the discharged ore in the secondary ball mill for grading, and feeding secondary graded overflow containing 65 to 95 percent of milled powder with the granularity of 200 meshes into a magnetic separator, wherein the tailings in the magnetic separator are final tailings; and demagnetizing the concentrate in the magnetic separator, then feeding into a high-frequency vibrating mesh fine screen, returning the ore on the high-frequency vibrating mesh fine screen to the ball mill, feeding the powder below the fine screen into a magnetic separation column, and returning middling in the magnetic separation column for secondary grading, wherein the concentrate in the magnetic separation column is used as final concentrate. The technology has the advantages of effectively improving the grade and the recovery rate of the vanadium titano-magnetite, reducing the ore dressing energy consumption, improving the utilization rate of resources and reducing the production cost.
Description
Technical field
The invention belongs to iron ore and sort technical field, especially relate to a kind of ore-dressing technique that is used to handle vanadium titano-magnetite.
Background technology
Vanadium titano-magnetite be a kind of be the solid solution separator of main body with the magnetic iron ore, essential element is iron, titanium, vanadium.Compare with single magnetic iron ore, vanadium titano-magnetite is the ferrimagnetism ore, and its remanent magnetism is bigger, and coercivity is high, has surpassed the magnetic data of present domestic iron ore.The external magnetic field strength that applies is big more, and remanent magnetism and coercivity also increase thereupon.Under the outside magnetic field effect, along with external magnetic field intensity increases, the proportional increase of the intensity of magnetization is an example with the Panzhihua vanadium titano-magnetite, under the external magnetic field of 63.66KA/m, has reached capacity magnetized 50%.
Be magnetized behind the magnetic field of general fine-grained magnetite entering magnetic plant, attract each other to produce and reunite; After it leaves magnetic field, because the coercivity of fine-grained magnetite is big, make ore particle keep bigger remanent magnetism, form the remanent magnetism aggregation phenomenon.There are remanent magnetism in magnetic mineral such as magnetic iron ore when leaving magnetic field, will be between the magnetic-particle owing to magnetic coagulation takes place in remanent magnetism, like magnetic linkage and magnetic group, it to sort, graded operation all has adverse effect.And magnetic coagulation can take place in the magnetic separation process equally; This is because strong down gathering of magnetic-particle outside magnetic field effect forms magnetic group, in magnetic group, except that magnetic-particle itself; Also be wrapped in low monomer gangue of grade and gangue intergrowth, thereby reduced the grade of concentrate.In order to reach certain concentrate quality requirement, select factory to take multistage grinding multistage dressing process, or reduce optimum break comprehensively, improve the magnetic iron ore liberation degree of minerals.There is certain difficulty technically in this type measure, and is also expensive economically, selects factory's production capacity also can reduce simultaneously, and metal recovery rate descends.In fact, improve the quality of magnetic separator concentrate product, should destroy magnetic group, the monomer gangue or the intergrowth that are entrained in are wherein therefrom separated.
And vanadium titano-magnetite has remanent magnetism and the coercivity higher than general magnetic iron ore, and it is more serious that formation non magnetic is mingled with.
At present, select factory to be the processing vanadium titano-magnetite dresser process flow of representative with Panzhihua, as shown in Figure 1.Be adopt be with grade be 30.64% raw ore through the primary grinding classification after the classification overflow feed a stages of magnetic separation; One stages of magnetic separation concentrate feeds cyclone; The cyclone overflow feeds high frequency vibrating screen, feeds secondary grinding with the cyclone sand setting on the sieve, and the secondary grinding ore discharge returns to cyclone; Feed the selected stages of magnetic separation of two stages of magnetic separation under the sieve and scan, former last acquisition iron concentrate grade is about 54.3%.Shortcomings such as this flow process secondary grinding graded operation exists grading effect bad, and fluctuation such as concentration is bigger, and the secondary grinding effect is bad, and the screening operation treating capacity is bigger; And Panzhihua vanadium titano-magnetite coercivity is bigger, forms easily non magnetic problem such as be mingled with in the magnetic separation refining process.These problems cause that the secondary grinding treating capacity is little, the grind grading effect is bad, and coarse fraction and fine fraction grade are lower in the final concentrate, therefore cause the final concentrate grade lower, and the rate of recovery descends, the ore dressing energy consumption height and the wasting of resources.
Summary of the invention
The purpose of this invention is to provide a kind of raising iron concentrate grade and the rate of recovery, reduce the ore dressing energy consumption, improve resource utilization, the ore-dressing technique that is used to handle vanadium titano-magnetite that reduces production costs.
The objective of the invention is to realize through following technical proposals:
According to the ore-dressing technique that is used to handle vanadium titano-magnetite of the present invention, comprise the following steps: the raw ore after the fragmentation is fed the ball mill of primary grinding classification in closed circuit, one section classification overflow that granularity is milled to-200 orders 40%～50% feeds magnetic rougher; The magnetic rougher mine tailing is a true tailings, and the magnetic rougher concentrate feeds two sections classifications through after taking off magnetic, and two sections classification sand returns feed two sections ball mills; Two sections ball mill ore discharges return classification; Two sections classification overflows that granularity is milled to-200 orders 65%～95% feed magnetic separator, and the magnetic separator mine tailing is a true tailings, and the magnetic separator concentrate feeds high frequency vibrating dusting cover through after taking off magnetic; Return ball mill on the sieve of its high frequency vibrating dusting cover; Feed the magnetic separation post under the dusting cover sieve, magnetic separation post chats returns two sections classifications, and magnetic separation post concentrate is as final concentrate.
The screen cloth of high frequency vibrating dusting cover of the present invention is 0.074-0.15mm.
Advantage of the present invention is: because two sections classification overflows can shift to an earlier date jettisoning part qualified tailings through after the magnetic separation, effectively reduce the mine-supplying quantity of high frequency vibrating dusting cover, laboratory test is the result prove; Can reduce about 15% than former flow process and go into the sieve amount, reach the target of effective raising fine screening classification and secondary grinding efficient, form on the sieve through fine screening classification simultaneously; The coarse granule intergrowth returned to regrind reach the raising concentrate grade; Stablize the purpose of concentrate quality, in addition, the minimizing of dusting cover mine-supplying quantity can reduce sieve and go up amount; Thereby reduce by two sections ball-milling treatment amounts, reach the purpose that cuts down the consumption of energy; The magnetic separation post utilizes magnetic force and gravity combined sorting; Compare with magnetic separator; The interval field intensity of the most of sorting of magnetic separation post is less than 20KA/m, and the cleaning magnetic separator field intensity is 100～120KA/m, and the reduction of magnetic field intensity makes coercivity and magnetic coagulation phenomenon lower greatly; Make concentrate grade can improve about 0.7% with the peptizaiton of magnetic separation post, operation recovery can improve 0.5%.
Description of drawings
Fig. 1 is the process chart of former vanadium titano-magnetite three stages of magnetic separation sorting operations.
Fig. 2 is of the present invention to the optimization grind grading of vanadium titano-magnetite and the process chart of increase magnetic separation post.
The specific embodiment
Further specify the specific embodiment of the present invention below in conjunction with accompanying drawing.
As shown in Figure 2, a kind of ore-dressing technique that is used to handle vanadium titano-magnetite of the present invention comprises the following steps: the raw ore after the fragmentation is fed the ball mill of primary grinding classification in closed circuit; One section classification overflow that granularity is milled to-200 orders 40%～50% feeds magnetic rougher, and the magnetic rougher mine tailing is a true tailings, and the magnetic rougher concentrate feeds two sections classifications through after taking off magnetic; Two sections classification sand returns feed two sections ball mills, and two sections ball mill ore discharges return classification, and two sections classification overflows that granularity is milled to-200 orders 65%～95% feed magnetic separator; The magnetic separator mine tailing is a true tailings; The magnetic separator concentrate feeds high frequency vibrating dusting cover through after taking off magnetic, returns ball mill on the sieve of its high frequency vibrating dusting cover, feeds the magnetic separation post under the dusting cover sieve; Magnetic separation post chats returns two sections classifications, and magnetic separation post concentrate is as final concentrate.
The screen cloth of high frequency vibrating dusting cover of the present invention is 0.074-0.15mm.Can adopt the different size sieve aperture according to the different ore deposit conditions of giving, can control the amount of returning on the sieve like this, amount is 20% to 30% o'clock best results of sieve mine-supplying quantity on the sieve.The grinding-classification operation of optimizing can effectively improve the grind grading effect, reduces overground.The evidence magnetic concentrate adopts fine screening classification technology can improve concentrate grade about 1%.
Feed the magnetic separation post under the dusting cover sieve of the present invention.Its magnetic separation post adopts the adjustable excitatory pulsating field of electromagnetism; Magnetic field intensity far below magnetic separator; Greatly reduce the remanent magnetism and the coercivity of vanadium titano-magnetite in the sorting interval, reduced the magnetic coagulation phenomenon, and the lower concentration in sorting interval and the magnetic field of pulsation; The magnetization magnetic coagulation that can effectively disperse magnetic iron ore is told the monomer gangue, sludge, the lean intergrowth that are entrained in wherein; And continue downward big magnetic field force, and allow bigger ascending current speed, produce and the opposite and bigger mine tailing separating force of magnetic force direction.Bigger ascending current makes the Lian Fusheng body get into magnetic separation post mine tailing, feeds two sections graded operations then, carries out further ore grinding and dissociates and choosing again, can reach the target that improves concentrate grade and metal recovery rate, thereby reduce tailings grade.The chats amount is through ascending current speed and magnetic field intensity control, best results when the chats amount is controlled at 10% to 20% magnetic separation post mine-supplying quantity.Compare with magnetic separator, magnetic separation post concentrate grade can improve about 0.7%, and operation recovery can improve 0.5%.
Simultaneously; Dusting cover and magnetic separation post return to the operation of the regrinding secondary grinding ore discharge granularity of loweing with intergrowth; With the Panzhihua vanadium titano-magnetite is example, and former flow process secondary grinding ore discharge granularity need reach-200 orders 75%, and concentrate grade just can reach more than 55.5%; Adopt this flow process secondary grinding ore discharge granularity only need reach-200 orders 60%, concentrate grade just can reach more than 55.5%.Putting of grinding particle size slightly can reduce the ball mill energy consumption, reduces production costs.
Adopt the higher vanadium titano-magnetite of this flow processing sefstromite content; With existing procedure mutually specific energy improve iron concentrate grade about 2%; Improve metal recovery rate about 1%, improved concentrate quality and resource utilization, can reduce the content of silicon in the iron ore concentrate simultaneously; Help iron-making and steel-making, have high economic and social value.
The ore-dressing technique that is used to handle vanadium titano-magnetite of the present invention is applicable to handles the stronger magnetic iron ore of coercivity; Because titanomagnetite magnetic is stronger; Coercivity is strong; Ilmenite magnetic than titanomagnetite magnetic a little less than, adopt this flow processing Panzhihua formula vanadium titano-magnetite, can obtain more high grade iron concentrate and reduce Ti content in the iron ore concentrate simultaneously slightly.
Claims (2)
1. ore-dressing technique that is used to handle vanadium titano-magnetite comprises the following steps: the raw ore after the fragmentation is fed the ball mill of primary grinding classification in closed circuit, and one section classification overflow that granularity is milled to-200 orders 40%～50% feeds magnetic rougher; The magnetic rougher mine tailing is a true tailings, and the magnetic rougher concentrate feeds two sections classifications through after taking off magnetic, and two sections classification sand returns feed two sections ball mills; Two sections ball mill ore discharges return classification; Two sections classification overflows that granularity is milled to-200 orders 65%～95% feed magnetic separator, and the magnetic separator mine tailing is a true tailings, and the magnetic separator concentrate feeds high frequency vibrating dusting cover through after taking off magnetic; Return ball mill on the sieve of its high frequency vibrating dusting cover; Feed the magnetic separation post under the dusting cover sieve, magnetic separation post chats returns two sections classifications, and magnetic separation post concentrate is as final concentrate.
2. the ore-dressing technique that is used to handle vanadium titano-magnetite according to claim 1, the screen cloth that it is characterized in that described high frequency vibrating dusting cover is 0.074-0.15mm.
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| CN103433137A (en) * | 2013-07-29 | 2013-12-11 | 十堰源禹工贸有限公司 | Breaking and separation integrated comprehensive recovery method of chrysotile tailings |
| CN103433138A (en) * | 2013-07-29 | 2013-12-11 | 十堰源禹工贸有限公司 | Breaking and separation integrated comprehensive recovery system of chrysotile tailings |
| CN103752428A (en) * | 2014-01-08 | 2014-04-30 | 攀钢集团矿业有限公司 | Beneficiation method of vanadium titano-magnetite |
| CN103785531A (en) * | 2014-01-26 | 2014-05-14 | 攀钢集团西昌钢钒有限公司 | Vanadium oxide beneficiation method |
| CN103816980A (en) * | 2014-02-28 | 2014-05-28 | 四川安宁铁钛股份有限公司 | Closed circuit grinding grading technology |
| CN104324793A (en) * | 2014-08-29 | 2015-02-04 | 攀钢集团矿业有限公司 | Vanadium-titanium magnetite pretreatment method |
| CN104741218A (en) * | 2015-04-01 | 2015-07-01 | 东北大学 | Mineral separation method capable of increasing vanadium recovery rate of ultralow-grade vanadium-titanium magnetite |
| CN104959228A (en) * | 2015-07-24 | 2015-10-07 | 段风梅 | Lean magnetite beneficiation method capable of reducing fineness of grinding ore |
| CN106000597A (en) * | 2016-05-27 | 2016-10-12 | 鞍钢集团矿业公司 | Lean magnetite single magnetic separation-magnetic vibration machine separation process |
| CN106179718A (en) * | 2016-08-02 | 2016-12-07 | 山东华联矿业股份有限公司 | Dressing of middles technique |
| CN106607182A (en) * | 2016-12-23 | 2017-05-03 | 韩小娟 | Novel technological process for magnetite separation |
| CN108339661A (en) * | 2018-02-09 | 2018-07-31 | 鞍钢集团矿业设计研究院有限公司 | The full permanent magnetism short route of stage grinding handles mixed type iron ore technique |
| CN108465552A (en) * | 2018-03-07 | 2018-08-31 | 鞍钢集团矿业有限公司 | A kind of method of single magnetic separation process recycling magnetic iron ore tailing |
| CN108970800A (en) * | 2018-06-28 | 2018-12-11 | 马钢集团设计研究院有限责任公司 | The ore-dressing technique of dioxide-containing silica in a kind of reduction iron ore concentrate |
| CN109158206A (en) * | 2018-07-12 | 2019-01-08 | 昆明理工大学 | A kind of classification of multistage, premagnetization are from strengthening magnetic selection method |
| CN109675708A (en) * | 2018-12-14 | 2019-04-26 | 四川龙蟒矿冶有限责任公司 | A kind of Pre-sorting technique of vanadium titano-magnetite |
| CN110038715A (en) * | 2019-03-29 | 2019-07-23 | 中冶北方（大连）工程技术有限公司 | Apatite vanadium titano-magnetite dresser's skill |
| CN111729754A (en) * | 2020-07-09 | 2020-10-02 | 攀钢集团矿业有限公司 | Beneficiation method for producing titanium concentrate by utilizing ilmenite |
| CN111905917A (en) * | 2020-08-04 | 2020-11-10 | 安徽马钢矿业资源集团姑山矿业有限公司 | System and method for high production efficiency of two-stage grinding of magnetic ore |
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| CN112371304A (en) * | 2020-10-22 | 2021-02-19 | 攀钢集团攀枝花钢铁研究院有限公司 | Method and system for sand setting and tailing discarding of vanadium titano-magnetite |
| CN113578234A (en) * | 2021-07-29 | 2021-11-02 | 长江师范学院 | Impurity removing device for removing non-titanium impurities in titanium slag and screening equipment thereof |
| CN113926588A (en) * | 2021-10-12 | 2022-01-14 | 重钢西昌矿业有限公司 | Method for recycling titanium resources in magnetic separation tailings |
| CN113941425A (en) * | 2021-09-16 | 2022-01-18 | 魏昌国 | Iron ore grinding and separating process |
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| CN114570515A (en) * | 2022-01-26 | 2022-06-03 | 江西永兴特钢新能源科技有限公司 | Low-grade lepidolite recycling method |
| CN114682367A (en) * | 2022-04-01 | 2022-07-01 | 攀钢集团攀枝花钢铁研究院有限公司 | Grinding and selecting method of vanadium titano-magnetite |
| CN114682374A (en) * | 2022-04-01 | 2022-07-01 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for pre-selecting ilmenite from titanium-selecting tailings of vanadium titano-magnetite |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3672579A (en) * | 1970-08-10 | 1972-06-27 | Univ Minnesota | Process for beneficiating magnetite iron ore |
| US5307938A (en) * | 1992-03-16 | 1994-05-03 | Glenn Lillmars | Treatment of iron ore to increase recovery through the use of low molecular weight polyacrylate dispersants |
| CN101708494A (en) * | 2008-10-31 | 2010-05-19 | 鞍钢集团矿业公司 | New method for recycling iron minerals in magnetic separated gangues |
-
2012
- 2012-06-17 CN CN201210198532.1A patent/CN102698871B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3672579A (en) * | 1970-08-10 | 1972-06-27 | Univ Minnesota | Process for beneficiating magnetite iron ore |
| US5307938A (en) * | 1992-03-16 | 1994-05-03 | Glenn Lillmars | Treatment of iron ore to increase recovery through the use of low molecular weight polyacrylate dispersants |
| CN101708494A (en) * | 2008-10-31 | 2010-05-19 | 鞍钢集团矿业公司 | New method for recycling iron minerals in magnetic separated gangues |
Non-Patent Citations (2)
| Title |
|---|
| 詹大国: "《浅谈磁选厂降低能耗的途径》", 《河北冶金》 * |
| 赵通林等: "《磁选柱分选过程与机理初探》", 《金属矿山》 * |
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| CN114682367A (en) * | 2022-04-01 | 2022-07-01 | 攀钢集团攀枝花钢铁研究院有限公司 | Grinding and selecting method of vanadium titano-magnetite |
| CN114682374A (en) * | 2022-04-01 | 2022-07-01 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for pre-selecting ilmenite from titanium-selecting tailings of vanadium titano-magnetite |
| CN114682374B (en) * | 2022-04-01 | 2023-10-27 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for preselecting ilmenite from titanium tailings of vanadium titano-magnetite |
| CN114682367B (en) * | 2022-04-01 | 2023-10-27 | 攀钢集团攀枝花钢铁研究院有限公司 | Grinding and selecting method of vanadium titano-magnetite |
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