CN106216083A - Iron tailings of low-grade vanadium titano gravity treatment recovery Pd iron mine and the method for Treatment of Middling thereof and the method for recovery Pd iron mine - Google Patents
Iron tailings of low-grade vanadium titano gravity treatment recovery Pd iron mine and the method for Treatment of Middling thereof and the method for recovery Pd iron mine Download PDFInfo
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- CN106216083A CN106216083A CN201610806709.XA CN201610806709A CN106216083A CN 106216083 A CN106216083 A CN 106216083A CN 201610806709 A CN201610806709 A CN 201610806709A CN 106216083 A CN106216083 A CN 106216083A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/02—Washing granular, powdered or lumpy materials; Wet separating using shaken, pulsated or stirred beds as the principal means of separation
- B03B5/04—Washing granular, powdered or lumpy materials; Wet separating using shaken, pulsated or stirred beds as the principal means of separation on shaking tables
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/48—Washing granular, powdered or lumpy materials; Wet separating by mechanical classifiers
- B03B5/52—Spiral classifiers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/62—Washing granular, powdered or lumpy materials; Wet separating by hydraulic classifiers, e.g. of launder, tank, spiral or helical chute concentrator type
- B03B5/626—Helical separators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
Abstract
The invention discloses a kind of iron tailings of low-grade vanadium titano gravity treatment recovery Pd iron mine and Treatment of Middling thereof and the method for recovery Pd iron mine.Gravity treatment recovery method includes: iron tailings of low-grade vanadium titano is carried out gravity treatment by (1), and gravity treatment includes roughly selecting iron selection tailings；(2) rougher concentration obtained is carried out the most selected；(3) the selected chats obtained is carried out grind grading and obtain coarse fraction mineral aggregate and fine fraction mineral aggregate, fine fraction mineral aggregate is back to the selected operation of this gravity treatment in mineral material, coarse fraction mineral aggregate is back to grinding operation in mineral material, when the number of times of the selected operation of gravity treatment is 1, need to draw from selected operation through the selected chats of grind grading；When the number of times of the selected operation of gravity treatment is more than or equal to 2, need to draw, by remaining selected middling recurrence to this selected operation in mineral material from the 2nd selected operation reciprocal through the selected chats of grind grading.This method reduce the production cost of ilmenite, improve grade and the response rate.
Description
Technical field
The present invention relates to mineral processing field, in particular it relates to a kind of iron tailings of low-grade vanadium titano gravity treatment is reclaimed
Ilmenite and the method for Treatment of Middling thereof, and a kind of method of iron tailings of low-grade vanadium titano recovery Pd iron mine.
Background technology
In the ore-dressing technique of iron tailings of low-grade vanadium titano recovery Pd iron mine, low intensity magnetic separation, high intensity magnetic separation, weight are widely used
The methods such as choosing, flotation, electric separation.
Owing to iron tailings of low-grade vanadium titano containing a large amount of proportions olivine close with ilmenite, titanium augite etc.
Stone-like pulse, according to producing practical experience, the simplest re-selection procedure method can not high efficiency recovery Pd iron mine.The most existing titanium
There is the shortcoming that the response rate is low, concentrate grade is low, cost is high in iron mine recovery method.
Summary of the invention
The purpose of the present invention overcomes the method existence in prior art for iron tailings of low-grade vanadium titano recovery Pd iron mine
The defect that the response rate is low, concentrate grade is low and cost is high, it is provided that ferrotianium is reclaimed in a kind of new iron tailings of low-grade vanadium titano gravity treatment
Ore deposit and the method for Treatment of Middling thereof, and a kind of method of iron tailings of low-grade vanadium titano recovery Pd iron mine.
According to the first aspect of the invention, the present invention provide a kind of iron tailings of low-grade vanadium titano gravity treatment recovery Pd iron mine and
The method of its Treatment of Middling, wherein, the method comprises the following steps:
(1) iron tailings of low-grade vanadium titano carrying out one or many gravity treatment, described gravity treatment includes described iron selection tailings
Carry out gravity treatment to roughly select, obtain gravity treatment rougher concentration, chats is roughly selected in gravity treatment and gravity treatment rougher tailings；
(2) gravity treatment carried out at least one times by described gravity treatment rougher concentration is selected, obtains the selected concentrate of gravity treatment, gravity treatment essence
The chats of choosing and the selected mine tailing of gravity treatment；
(3) chats selected for described gravity treatment is carried out grind grading and obtain coarse fraction mineral aggregate and fine fraction mineral aggregate, by described
Fine fraction mineral aggregate be back to the selected operation of this gravity treatment in mineral material, described coarse fraction mineral aggregate is back to grinding operation
To in mineral material,
Wherein, when the number of times of the selected operation of gravity treatment is 1, need the chats through the gravity treatment of grind grading is selected smart from gravity treatment
It is elected to be in industry extraction；When the number of times of the selected operation of gravity treatment is more than or equal to 2, need through the selected chats of the gravity treatment of grind grading from
2nd the selected operation of gravity treatment reciprocal is drawn, by middling recurrence selected for remaining gravity treatment to this selected operation to the material in ore deposit
In.
According to the second aspect of the invention, present invention also offers a kind of iron tailings of low-grade vanadium titano recovery Pd iron mine
Method, carries out gravity treatment by iron tailings of low-grade vanadium titano, and the gravity concentrate obtained is carried out flotation and/or electric separation, wherein, described
Gravity treatment is carried out by above-mentioned gravity treatment recovery method.
It was found by the inventors of the present invention that in the reuse adoption process of iron tailings of low-grade vanadium titano, by specific operation
Position carries out grind grading process to the chats that gravity treatment is selected, reaches less ore grinding amount, changes the grain of the selected chats of gravity treatment
Degree composition, thus improves grade and the response rate of ilmenite concentrate, and be conducive to improving subsequent job enter ore dressing raw material
Grade, reduce the production cost of ilmenite concentrate, it is achieved resource comprehensive and efficiently utilizing.
Preferably, when described classification uses cyclone or uses cyclone and dusting cover, it is more beneficial for increasing proportion low
Granularity in the gangue mineral of ilmenite reduces the granularity of the bigger ilmenite of proportion simultaneously, is allowed to be more beneficial for follow-up separation
Process, thus improve grade and the response rate of ilmenite concentrate further, reduce the production cost of ilmenite concentrate.
Other features and advantages of the present invention will be described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and constitutes the part of description, with following tool
Body embodiment is used for explaining the present invention together, but is not intended that limitation of the present invention.In the accompanying drawings:
Fig. 1 is a kind of gravity treatment removal process schematic diagram in prior art.
Fig. 2 is another kind of gravity treatment removal process schematic diagram of the prior art.
Fig. 3 is the gravity treatment removal process schematic diagram according to one embodiment of the present invention.
Detailed description of the invention
Hereinafter the detailed description of the invention of the present invention is described in detail.It should be appreciated that described herein specifically
Embodiment is merely to illustrate and explains the present invention, is not limited to the present invention.
The end points of scope disclosed in this article and any value are not limited to this accurate scope or value, these scopes or
Value should be understood to the value comprised close to these scopes or value.For numerical range, between the endpoint value of each scope, respectively
Between endpoint value and the single point value of individual scope, and can obtain one or more between single point value with combination with one another
New numerical range, these numerical rangies should be considered the most specifically to disclose.
The present invention provides a kind of iron tailings of low-grade vanadium titano gravity treatment recovery Pd iron mine and the method for Treatment of Middling thereof, its
In, the method comprises the following steps:
(1) iron tailings of low-grade vanadium titano carrying out one or many gravity treatment, described gravity treatment includes described iron selection tailings
Carry out gravity treatment to roughly select, obtain gravity treatment rougher concentration, chats is roughly selected in gravity treatment and gravity treatment rougher tailings；
(2) gravity treatment carried out at least one times by described gravity treatment rougher concentration is selected, obtains the selected concentrate of gravity treatment, gravity treatment essence
The chats of choosing and the selected mine tailing of gravity treatment；
(3) chats selected for described gravity treatment is carried out grind grading and obtain coarse fraction mineral aggregate and fine fraction mineral aggregate, by described
Fine fraction mineral aggregate is back to the selected operation of this gravity treatment in mineral material, described coarse fraction mineral aggregate is back to grinding operation to
In mineral material,
Wherein, when the number of times of the selected operation of gravity treatment is 1, need the chats through the gravity treatment of grind grading is selected smart from gravity treatment
It is elected to be in industry extraction；When the number of times of the selected operation of gravity treatment is more than or equal to 2, need through the selected chats of the gravity treatment of grind grading from
2nd the selected operation of gravity treatment reciprocal is drawn, by middling recurrence selected for remaining gravity treatment to this selected operation to the material in ore deposit
In.
The method according to the invention, described iron tailings of low-grade vanadium titano can be to obtain after vanadium titano-magnetite goes out iron ore concentrate
The mine tailing arrived, it is also possible to the vanadium titano-magnetite mine tailing obtained for pretreatment conventional in this area.Wherein, ferrum is selected for described
There is no particular limitation for the granularity of mine tailing, can be granularity conventional in the art.Usually, with the total amount of described iron selection tailings
On the basis of, in described iron selection tailings granularity be the mineral content of more than 0.075mm be more than 30 weight %, preferably 40-90 weight
Amount %.
In the case of with the method for the invention it is preferred to, described iron tailings of low-grade vanadium titano is conventional in this area
The vanadium titano-magnetite mine tailing that pretreatment obtains, such as, carry out high intensity magnetic separation by iron tailings of low-grade vanadium titano, obtain high intensity magnetic mineral.
In the case of with the method for the invention it is preferred to, described iron selection tailings classification is obtained raw ore coarse fraction mineral aggregate and former
Ore deposit fine fraction mineral aggregate, carries out high intensity magnetic separation respectively by raw ore coarse fraction mineral aggregate and raw ore fine fraction mineral aggregate, obtains coarse grain high intensity magnetic mineral
Magnetic tail ore deposit strong with coarse grain and particulate high intensity magnetic mineral and particulate strong magnetic tail ore deposit.
In the case of with the method for the invention it is preferred to, described method includes that using screen size is the thin of 0.11-0.13mm
Described coarse grain high intensity magnetic mineral and particulate high intensity magnetic mineral are sieved, to remove fine fraction part, thus by strong for described coarse grain by sieve
Coarse fraction part in magnetic concentrate and particulate high intensity magnetic mineral carries out gravity treatment.So can be conducive to further improving ilmenite concentrate
Grade and the response rate, reduce ilmenite concentrate production cost.
The method according to the invention, is classified as raw material coarse fraction mineral aggregate and raw ore fine fraction mineral aggregate by described iron selection tailings
Method can be method commonly used in the art, wants as long as making raw ore coarse fraction mineral aggregate and raw ore fine fraction mineral aggregate meet recovery
Ask.Such as concentrate classification case classification by swash plate and obtain raw ore coarse fraction mineral aggregate and raw ore fine fraction mineral aggregate.
The method according to the invention, in order to remove the foreign material in crude ore pulp, under preferable case, described method includes selecting
Iron tailings carried out the step every slag before carrying out high intensity magnetic separation.
The method according to the invention, the purpose of concentration is to remove moisture in ore pulp to enter ore deposit with improve subsequent handling
Concentration, to guarantee to obtain preferable sorting index, reduces equipment.Under preferable case, described method includes entering iron selection tailings
The step concentrated is carried out before row high intensity magnetic separation.The step of described concentration is as the criterion with the purpose realizing concentrating, usually, and concentration step
The enriched product concentration used is 25-35 weight %.
The method according to the invention, in order to remove the strongly magnetic minerals such as ferromagnetic magnetic iron ore, in order to avoid causing intensity magnetic separator
The magnetic blocking of sorting gap, under preferable case, described method includes carrying out iron selection tailings before carrying out high intensity magnetic separation low intensity magnetic separation
Step except ferrum.The magnetic field intensity of described low intensity magnetic separation can be the magnetic field intensity of low intensity magnetic separation conventional in the art, weak to realize
The purpose of iron removal by magnetic separation is as the criterion.Usually, the magnetic field intensity of described low intensity magnetic separation is 250-500mT.
The method according to the invention, there is no particular limitation for the described order every slag, concentration and low intensity magnetic separation, with the most real
The purpose of existing high intensity magnetic separation is as the criterion.Carry out successively every slag, concentration and low intensity magnetic separation before preferably iron selection tailings being carried out high intensity magnetic separation.
Method according to the invention it is possible to carry out every slag, concentration and low intensity magnetic separation by described iron selection tailings, then carry out classification
Obtain raw ore coarse fraction mineral aggregate and raw ore fine fraction mineral aggregate, it is also possible to described iron selection tailings is first carried out classification and obtains raw ore coarse grain
Level mineral aggregate and raw ore fine fraction mineral aggregate, then carried out every slag, concentration respectively by raw ore coarse fraction mineral aggregate and raw ore fine fraction mineral aggregate
And low intensity magnetic separation.In order to obtain the higher ilmenite response rate, higher TiO2Grade and relatively low production cost, preferable case
Under, described iron selection tailings classification is obtained raw ore coarse fraction mineral aggregate and raw ore fine fraction mineral aggregate, by raw ore coarse fraction mineral aggregate and former
Ore deposit fine fraction mineral aggregate is carried out respectively every slag, concentration, low intensity magnetic separation and high intensity magnetic separation, obtain coarse grain high intensity magnetic mineral and coarse grain strong magnetic tail ore deposit with
And particulate high intensity magnetic mineral and particulate strong magnetic tail ore deposit.
The method according to the invention, the purpose of high intensity magnetic separation is to utilize the mine tailings such as the magnetic mineral difference substantial amounts of stone-like pulse of jettisoning,
Reduce the treating capacity of subsequent handling, reduce cost.The magnetic field intensity of institute's high intensity magnetic separation can be high intensity magnetic separation conventional in the art
Magnetic field intensity, is as the criterion realizing the purpose of high intensity magnetic separation.Usually, the magnetic field intensity of described high intensity magnetic separation can be 500-1100mT.
The method according to the invention, the TiO of described iron selection tailings2Content be as the criterion with the requirement of satisfied recovery.Usually,
On the basis of the total amount of described iron selection tailings, TiO in described iron selection tailings2Content be 3-17 weight %, preferably 4.5-13
Weight %.
The method according to the invention, in order to obtain the response rate of higher ilmenite concentrate, higher TiO2Grade and
Relatively low production cost, under preferable case, described method includes that described gravity treatment is roughly selected chats is mixed into gravity treatment rougher concentration
Row gravity treatment is selected or described gravity treatment is roughly selected middling recurrence to gravity treatment roughly select roughly selecting to carrying out gravity treatment in mineral material of operation.
The method according to the invention, in order to obtain the response rate of higher ilmenite concentrate, higher TiO2Grade and
Relatively low production cost, under preferable case, described grind grading uses cyclone or uses cyclone to enter with the combination of dusting cover
Row classification, more preferably uses the combination of cyclone and dusting cover to carry out classification.So can utilize cyclone according to than
The graded characteristics of the double standards of weight and granularity, is more beneficial for increasing proportion and subtracts less than the granularity of the gangue mineral of ilmenite simultaneously
The granularity of the ilmenite that little proportion is bigger, is allowed to be more beneficial for follow-up separation process such that it is able to obtain higher ilmenite
The response rate of concentrate and higher TiO2Grade and relatively low production cost.
The method according to the invention, in order to obtain the higher response rate, higher TiO2Grade and relatively low production become
This, the most described dusting cover be aperture size be the high frequency fine screen of 0.22-0.3mm, further preferred aperture size is 0.22-
The high frequency fine screen of 0.26mm.
The method according to the invention, when using the combined classification of cyclone and dusting cover, to cyclone and the use of dusting cover
Order is as the criterion with the granularmetric composition being capable of changing chats, under preferable case, is passed sequentially through by chats selected for described gravity treatment
Cyclone and dusting cover carry out grind grading.
The method according to the invention, the grade according to raw ore is different with the grade that ilmenite concentrate requires, roughly selects in gravity treatment
Operation is scanned in rear increase.In order to obtain the response rate of higher ilmenite concentrate and higher TiO2Grade, under preferable case, institute
The method of stating includes that described gravity treatment rougher tailings is optionally carried out one or many spiral scans, scavenger concentrate and the weight that will obtain
Rougher concentration mixing is selected to carry out gravity treatment selected or be back to front one reselection operation of himself operation in the material in ore deposit；Enter
Under one step preferable case, described gravity treatment rougher tailings is carried out 1-2 spiral and scans, most preferably carry out 2 spirals and scan, i.e.
Gained gravity treatment rougher tailings is carried out one section scan, obtain one section of scavenger concentrate and one section scan mine tailing, and one section is scanned
Mine tailing proceeds two-stage nitration and scans and obtain two-stage nitration scavenger concentrate and two-stage nitration scans mine tailing, by the one of gained section of scavenger concentrate and gravity treatment
Rougher concentration mixing carry out selected or one section of scavenger concentrate is back to gravity treatment roughly select operation in mineral material, by gained two
Section scavenger concentrate mix with gravity treatment rougher concentration carry out selected or two-stage nitration scavenger concentrate is back to one section scan operation to
In mineral material.
The method according to the invention, the purpose of gravity treatment is to utilize the proportion of various Ores in mineral composition and particle size differences i.e.
Can dish out and affect the Ore of floatation process.The equipment of described gravity treatment is as the criterion with the purpose realizing gravity treatment, and usually, described gravity treatment can
So that by using in spiral chute, spiral concentrator and shaking table, one or more are carried out.
The method according to the invention, there is no particular limitation for the number of times selected to the gravity treatment of described gravity treatment rougher concentration, root
Different and the requirement of the concentrate of ilmenite the grade of grade according to raw ore is different and reasonably selects, such as can include but not
It is limited to: a gravity treatment is selected, secondary gravity treatment is selected, three gravity treatments are selected and more gravity treatment is selected, under preferable case, will
It is selected that described gravity treatment rougher concentration carries out three gravity treatments.
According to one embodiment of the present invention, when described gravity treatment rougher concentration is carried out the selected operation of gravity treatment once
Time, obtain the selected chats of the selected concentrate of gravity treatment, gravity treatment and the selected mine tailing of gravity treatment, chats selected for described gravity treatment is carried out
Grind grading obtains coarse fraction mineral aggregate and fine fraction mineral aggregate, described fine fraction mineral aggregate is back to the selected operation of this gravity treatment to ore deposit
In material, described coarse fraction mineral aggregate is back to grinding operation in mineral material.
According to another embodiment of the invention, when the number of times of the selected operation of gravity treatment to gravity treatment rougher concentration is more than
In 2 time, the selected chats of the gravity treatment through grind grading is needed to draw from the 2nd the selected operation of gravity treatment reciprocal, by remaining weight
Select selected middling recurrence to this selected operation in mineral material.Such as, when the selected work of gravity treatment to gravity treatment rougher concentration
When the number of times of industry is 3 times, it is selected, during the most selected operation is selected that the concentrate that the most selected operation is selected enters second time
Ore deposit is back in gravity treatment rougher concentration, the TiO in the gravity treatment cleaner tailings that selected operation for the first time is selected2Content be less than
TiO in gravity treatment rougher tailings2Content time, described gravity treatment cleaner tailings is mixed with described gravity treatment rougher tailings；When
TiO in the gravity treatment cleaner tailings that primary cleaning operation is selected2Content more than the TiO in gravity treatment rougher tailings2Content time,
Described gravity treatment cleaner tailings is back to a front selected operation of gravity treatment in the material in ore deposit；The selected operation of described second time is selected
Concentrate enter third time the most selected, the chats that the most selected operation is selected carries out grind grading and obtains coarse fraction mineral and particulate
Level mineral aggregate, described fine fraction mineral aggregate is back to second time the selected operation of gravity treatment in mineral material, by described coarse fraction mineral aggregate
Be back to grinding operation in mineral material, the cleaner tailings that the selected operation of second time is selected is back to selected operation for the first time
To in mineral material；The concentrate that the most selected operation is selected is gravity concentrate, the middling recurrence that the most selected operation is selected
To the concentrate that the selected operation of second time is selected, the cleaner tailings selected when the selected operation of third time is back to the selected work of second time
Industry in mineral material.
According to the second aspect of the invention, present invention also offers a kind of iron tailings of low-grade vanadium titano recovery Pd iron mine
Method, carries out gravity treatment by iron tailings of low-grade vanadium titano, and the gravity concentrate obtained is carried out flotation and/or electric separation, wherein, described
Gravity treatment is carried out by above-mentioned gravity treatment recovery method.
The method according to the invention, carries out the method and described above of gravity treatment by described iron tailings of low-grade vanadium titano
Cause, do not repeat them here.
The method according to the invention, described flotation step is to reach the purpose of sulphur removal.Floating sulfur step can be at flotation raw ore
Middle sulfur-bearing plays the effect of the sulfur content reducing flotation ilmenite concentrate time higher.
The method according to the invention, to the flotation mode of described gravity concentrate, there is no particular limitation, can be this area
The flotation mode of middle routine.
The method according to the invention, the number of times of described flotation can be according to the requirement of the grade of raw ore and ilmenite concentrate
The difference of grade reasonably selects.
The method according to the invention, the number of times of described electric separation reasonably can select according to the grade difference of raw ore
Select.Usually, the number of times of described electric separation is 1-3 time, preferably 2-3 time, most preferably 3 times.Under preferable case, can be before electric separation step
Increase flotation step to obtain the grade of higher ilmenite.
The method according to the invention, in order to ensure the quality of ilmenite concentrate, preferably by gravity treatment essence before flotation sulphur removal
Ore deposit carries out low intensity magnetic separation except ferrum.The magnetic field intensity of described low intensity magnetic separation can be the magnetic field intensity of low intensity magnetic separation conventional in the art, with
The purpose realizing low intensity magnetic separation is as the criterion.Usually, the magnetic field intensity of described low intensity magnetic separation can be 250-500mT.
Hereinafter will be described the present invention by embodiment and comparative example.
TiO in following embodiment and comparative example2Content by analysis of chemical elements (titration) method detection.
In following example and comparative example, the mensuration of granularity uses ruins, road, Shangyu city assay apparatus instrument factory diameter 200 type
Standard screen equipment.
The method of the iron tailings of low-grade vanadium titano gravity treatment recovery Pd iron mine that embodiment 1-7 provides for the present invention is described.
Embodiment 1
Used the iron tailings of low-grade vanadium titano (hereinafter referred to as Raw Ore) taking from Panzhihua Mining Area, through chemistry unit
Element analyzes key component and content (the 100wt% meter) such as table 1 institute of each component of the Raw Ore that the detection of (titration) method is obtained
Showing, wherein, TFe represents the total content of ferrum element.
Table 1
| Component | TFe | TiO2 | S |
| Content (wt%) | 14 | 9.75 | 0.54 |
Additionally, on the basis of the total amount of Raw Ore, in described iron selection tailings, granularity is that the mineral content of more than 0.075mm is
50 weight %.
The method of concrete gravity treatment recovery Pd iron mine is as follows, as shown in Figure 3:
(1) Raw Ore is concentrated classification case classification through swash plate and obtain raw ore coarse fraction mineral aggregate (granularity be more than 0.12mm) and former
Ore deposit fine fraction mineral aggregate (granularity is not more than 0.12mm), raw ore coarse fraction mineral aggregate and raw ore fine fraction mineral aggregate are carried out respectively every slag,
Concentration, low intensity magnetic separation (magnetic field intensity is 300mT) and high intensity magnetic separation (magnetic field intensity is 850mT), obtain coarse grain high intensity magnetic mineral and coarse grain
Strong magnetic tail ore deposit and particulate high intensity magnetic mineral and particulate strong magnetic tail ore deposit, wherein, enriched product concentration is 25 weight %；
(2) gained coarse fraction high intensity magnetic mineral and particulate high intensity magnetic mineral are mixed and screen out carefully with the dusting cover that sieve aperture is 0.12mm
Grade high intensity magnetic mineral part, residue coarse fraction high intensity magnetic mineral part carries out gravity treatment, and (described gravity treatment uses spiral chute, and model is
Φ 1200), described gravity treatment includes roughly selecting gained high intensity magnetic mineral, obtain gravity treatment rougher concentration, chats is roughly selected in gravity treatment and weight
Select rougher tailings, gravity treatment rougher concentration is carried out 3 times selected, and the concentrate that for the first time selected operation is selected enters second time essence
Choosing, in the middling recurrence that the most selected operation is selected to gravity treatment rougher concentration, after measured, the essence that the most selected operation is selected
Select the TiO in mine tailing2Content less than the TiO in gravity treatment rougher tailings2Content, that for the first time selected operation is selected is selected
Mine tailing directly merges with gravity treatment rougher tailings；It is selected, for the second time that the concentrate that the selected operation of described second time is selected enters third time
The chats that selected operation is selected passes sequentially through cyclone, and (Weihai Haiwang Hydrocyclone Co., Ltd., Beijing Huayu Engineering Co., Ltd. of Zh, model is that diameter 500mm is flat
Cyclone, the most identical) and high frequency fine screen (ore grinding-cyclone classification system) that aperture size is 0.26mm, carry out grind grading,
Obtain coarse fraction mineral (granularity is more than 0.26mm) and fine fraction mineral aggregate (granularity is not more than 0.26mm), by described fine fraction mineral aggregate
Be back to the second time selected operation of gravity treatment in mineral material, described coarse fraction mineral aggregate is back to grinding operation to mineral material
In, the second time cleaner tailings selected of selected operation is back to selected operation for the first time in mineral material；The most selected
The concentrate that operation is selected is gravity concentrate, the essence that the middling recurrence that the most selected operation is selected is selected to the selected operation of second time
In ore deposit, the cleaner tailings that the most selected operation is selected be back to second time selected operation in mineral material；
Described gravity treatment rougher tailings is carried out 2 spirals scan, gained rougher tailings is carried out one section and scans, obtain one section
Scavenger concentrate and one section scan mine tailing, and scan mine tailing by one section and proceed two-stage nitration and scan and obtain two-stage nitration scavenger concentrate and two
Section scans mine tailing, is mixed with gravity treatment rougher concentration by the one of gained section of scavenger concentrate and carries out selected or returned by one section of scavenger concentrate
Be back to gravity treatment roughly select operation in mineral material, gained two-stage nitration scavenger concentrate is mixed with gravity treatment rougher concentration carry out selected or
Two-stage nitration scavenger concentrate is back to one section scan operation in mineral material.
(3) described gravity concentrate is carried out two-stage nitration low intensity magnetic separation (magnetic field intensity is 350mT), flotation sulphur removal and 3 electric separations,
To ilmenite concentrate and electrostatic separation tailing.
Embodiment 2
Method according to embodiment 1 carries out the recovery of ilmenite, except for the difference that, in step (2), described gravity treatment is roughly selected essence
Ore deposit carries out primary cleaning operation, i.e. carry out selected by gravity treatment rougher concentration, obtain the selected concentrate of gravity treatment, gravity treatment selected in
Ore deposit and the selected mine tailing of gravity treatment, pass sequentially through chats selected for described gravity treatment cyclone and aperture size be the high frequency of 0.26mm
Dusting cover carries out grind grading and obtains coarse fraction mineral aggregate (granularity is more than 0.26mm) and fine fraction mineral aggregate (granularity is not more than 0.26mm),
Described fine fraction mineral aggregate is back to the selected operation of gravity treatment in mineral material, described coarse fraction mineral aggregate is back to grinding operation to
In mineral material, the selected mine tailing of gravity treatment directly merges with gravity treatment rougher tailings.
Embodiment 3
Method according to embodiment 1 carries out the recovery of ilmenite, except for the difference that, in step (2), is entered by gravity treatment rougher concentration
2 selected operations of row, the concentrate that the most selected operation is selected enters the most selected, the chats that the most selected operation is selected
Pass sequentially through cyclone and high frequency fine screen that aperture size is 0.26mm carries out grind grading and obtains coarse fraction mineral aggregate (granularity is more than
0.26mm) with fine fraction mineral aggregate (granularity is not more than 0.26mm), described fine fraction mineral aggregate is back to the selected work of gravity treatment for the first time
Described coarse fraction mineral aggregate in mineral material, is back to grinding operation in mineral material by industry, and after measured, the most selected operation is selected
TiO in the cleaner tailings gone out2Content less than the TiO in gravity treatment rougher tailings2Content, for the first time selected operation is selected
Mine tailing merge with gravity treatment rougher tailings, be gravity concentrate by the second time concentrate selected of selected operation, the most selected operation
In the concentrate that the middling recurrence selected to selected operation for the first time is selected, the cleaner tailings that the most selected operation is selected returns
To for the first time selected operation in mineral material.
Embodiment 4
Method according to embodiment 1 carries out the recovery of ilmenite, except for the difference that, in step (1), carries out only with cyclone
Grind grading.
Embodiment 5
Method according to embodiment 1 carries out the recovery of ilmenite, except for the difference that, in step (1), the high frequency fine screen of employing
Aperture size is 0.32mm.
Embodiment 6
Method according to embodiment 3 carries out the recovery of ilmenite, and except for the difference that, the enriched product used in step (1) is dense
Degree is 20 weight %.
Embodiment 7
Method according to embodiment 3 carries out the recovery of ilmenite, except for the difference that, in step (1), and the magnetic field intensity of low intensity magnetic separation
For 600mT.
Comparative example 1
Method according to embodiment 2 carries out the recovery of ilmenite, except for the difference that, according to the gravity treatment of the prior art of Fig. 1
Process carries out gravity treatment, gravity treatment will roughly select chats and carry out gravity treatment again, concentrate gravity treatment again obtained and gravity treatment rougher concentration
Merging, mine tailing gravity treatment again obtained merges with gravity treatment rougher tailings.
Comparative example 2
Method according to embodiment 2 carries out the recovery of ilmenite, except for the difference that, according to the gravity treatment of the prior art of Fig. 2
Process carries out gravity treatment, gravity treatment will roughly select and carry out gravity treatment selected 1 after chats merges with gravity treatment rougher concentration, by selected for gravity treatment 1
To chats be returned to selected 1 operation of gravity treatment in mineral material without grind grading.
Comparative example 3
Method according to embodiment 1 carries out the recovery of ilmenite, except for the difference that, in step (2), does not carry out gravity treatment, will be surplus
Remaining coarse fraction high intensity magnetic mineral part carries out the flow process of ore grinding-high intensity magnetic separation-flotation and reclaims ilmenite concentrate, wherein carries out after ore grinding
The magnetic field intensity of high intensity magnetic separation is 850mT.
Test case
The ilmenite concentrate obtained in embodiment 1-7 and comparative example 1-3 is carried out TiO2The mensuration of grade, and calculate ferrotianium
The response rate of ore deposit concentrate, calculates the production cost of ilmenite concentrate under the conditions of the price of 2015 simultaneously.Wherein, Raw Ore with
On the basis of 10 tons.Further, the TiO of gravity concentrate in embodiment 1-7 and comparative example 1-3 is measured respectively2Content.The results are shown in Table 2.
The computing formula of the response rate of ilmenite concentrate is as follows:
In formula, ilmenite concentrate quality is in terms of ton, and Raw Ore quality is in terms of ton；TiO in ilmenite concentrate2Content and
With TiO in Raw Ore2Content in terms of wt%.
Table 2
Compared with Example 1, the ilmenite concentrate response rate declines embodiment 4,5, the TiO in the selected concentrate of gravity treatment2Contain
Amount is declined slightly, and the cost of ilmenite concentrate slightly rises.
Compared with Example 3, the ilmenite concentrate response rate declines embodiment 6,7, the TiO in the selected concentrate of gravity treatment2Contain
Amount is basically unchanged, and the cost of ilmenite concentrate slightly rises about 10%.
Compared with Example 2, it is relatively big that index deteriorates amplitude to comparative example 1-2, and equally, comparative example 3 compared with Example 1, refers to
Mark deterioration amplitude is bigger.
It should be noted that the fine fraction all not accounting in test case screening out with the dusting cover that screen size is 0.12mm is strong
Magnetic concentrate part.Therefore the response rate seems on the low side.
By above embodiment and comparative example it can be seen that the method that the present invention provides obtains in ilmenite concentrate
TiO2Grade reaches the basic demand of Mining Market, and the method that the present invention provides obtains the production cost of ilmenite concentrate relatively
Low.
The preferred embodiment of the present invention described in detail above, but, the present invention is not limited in above-mentioned embodiment
Detail, in the technology concept of the present invention, technical scheme can be carried out multiple simple variant, this
A little simple variant belong to protection scope of the present invention.
It is further to note that each the concrete technical characteristic described in above-mentioned detailed description of the invention, at not lance
In the case of shield, can be combined by any suitable means.In order to avoid unnecessary repetition, the present invention to various can
The compound mode of energy illustrates the most separately.
Additionally, combination in any can also be carried out between the various different embodiment of the present invention, as long as it is without prejudice to this
The thought of invention, it should be considered as content disclosed in this invention equally.
Claims (10)
1. an iron tailings of low-grade vanadium titano gravity treatment recovery Pd iron mine and the method for Treatment of Middling thereof, it is characterised in that the party
Method comprises the following steps:
(1) iron tailings of low-grade vanadium titano carrying out one or many gravity treatment, described gravity treatment includes carrying out described iron selection tailings
Gravity treatment is roughly selected, and obtains gravity treatment rougher concentration, chats is roughly selected in gravity treatment and gravity treatment rougher tailings；
(2) gravity treatment carried out at least one times by described gravity treatment rougher concentration is selected, obtains the selected concentrate of gravity treatment, gravity treatment selected
Chats and the selected mine tailing of gravity treatment；
(3) chats selected for described gravity treatment is carried out grind grading and obtain coarse fraction mineral aggregate and fine fraction mineral aggregate, by described particulate
Level mineral aggregate be back to the selected operation of this gravity treatment in mineral material, described coarse fraction mineral aggregate is back to grinding operation to ore deposit
In material,
Wherein, when the number of times of the selected operation of gravity treatment is 1, need through the selected chats of the gravity treatment of grind grading from the selected work of gravity treatment
Industry is drawn；When the number of times of the selected operation of gravity treatment is more than or equal to 2, need through the selected chats of the gravity treatment of grind grading from inverse
In 2nd the selected operation of gravity treatment draw, by middling recurrence selected for remaining gravity treatment to this selected operation in mineral material.
Method the most according to claim 1, wherein, described gravity treatment is roughly selected chats mix with gravity treatment rougher concentration carry out weight
Select selected or described gravity treatment is roughly selected middling recurrence to gravity treatment roughly select roughly selecting to carrying out gravity treatment in mineral material of operation.
Method the most according to claim 1, wherein, described grind grading uses cyclone or uses cyclone and dusting cover
Combination carry out classification,
Preferably, the aperture size of described dusting cover is 0.22-0.3mm.
Method the most according to claim 1, wherein, described method includes described gravity treatment rougher tailings is optionally carried out one
Secondary or repeatedly spiral scan.
Method the most according to claim 1, wherein, when the number of times of the selected operation of gravity treatment is more than or equal to 2, when gravity treatment is selected
Mine tailing in TiO2Content less than or equal to the TiO in gravity treatment rougher tailings2Content time, by mine tailing selected for described gravity treatment
Mix with described gravity treatment rougher tailings；TiO in the mine tailing that gravity treatment is selected2Content more than the TiO in gravity treatment rougher tailings2
Content time, mine tailing selected for described gravity treatment is back to a front selected operation of gravity treatment in the material in ore deposit.
Method the most according to claim 1, wherein, described gravity treatment uses in spiral chute, spiral concentrator and shaking table one
Kind or multiple carry out.
7. according to the method described in any one in claim 1-5, wherein, on the basis of the total amount of described iron selection tailings, institute
State TiO in iron selection tailings2Content be 3-17 weight %,
Preferably, on the basis of the total amount of described iron selection tailings, in described iron selection tailings, granularity is that the mineral of more than 0.075mm contain
Amount is more than 30 weight %.
8. according to the method described in any one in claim 1-5, wherein, described method is included in and carries out institute before gravity treatment
State iron selection tailings and carry out high intensity magnetic separation, obtain high intensity magnetic mineral.
Preferably, described method includes obtaining described iron selection tailings classification raw ore coarse fraction mineral aggregate and raw ore fine fraction mineral aggregate,
Raw ore coarse fraction mineral aggregate and raw ore fine fraction mineral aggregate are carried out high intensity magnetic separation respectively, obtains coarse grain high intensity magnetic mineral and coarse grain strong magnetic tail ore deposit
And particulate high intensity magnetic mineral and particulate strong magnetic tail ore deposit,
It is further preferred that using aperture size is that the dusting cover of 0.11-0.13mm is by described coarse grain high intensity magnetic mineral and described particulate
High intensity magnetic mineral carries out sieving to remove fine fraction part.
Method the most according to claim 8, wherein, described method included described iron selection tailings before carrying out high intensity magnetic separation
Carry out every slag, concentration and low intensity magnetic separation,
Preferably, the magnetic field intensity of described high intensity magnetic separation is 500-1100mT；The magnetic field intensity of described low intensity magnetic separation is 250-500mT.
10. a method for iron tailings of low-grade vanadium titano recovery Pd iron mine, carries out gravity treatment by iron tailings of low-grade vanadium titano, will
The gravity concentrate obtained carries out flotation and/or electric separation, it is characterised in that described gravity treatment is by any one in claim 1-9
Described method is carried out.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107626436A (en) * | 2017-09-21 | 2018-01-26 | 攀钢集团矿业有限公司 | A kind of ilmenite sorts system and method |
| CN109967222A (en) * | 2019-03-29 | 2019-07-05 | 中冶北方（大连）工程技术有限公司 | Apatite ilmenite selects titanium to drop general labourer's skill |
| CN110479477A (en) * | 2018-05-15 | 2019-11-22 | 中国地质科学院矿产综合利用研究所 | The method of rare earth ore concentrate is sorted from vanadium titano-magnetite tailing |
| CN112156889A (en) * | 2020-09-23 | 2021-01-01 | 攀钢集团矿业有限公司 | Beneficiation method for pyroxene type ilmenite |
| 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 |
| CN114950717A (en) * | 2022-06-07 | 2022-08-30 | 厦门紫金矿冶技术有限公司 | Rapid flotation process for copper slag with high copper simple substance content and fine embedded particle size |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107626436A (en) * | 2017-09-21 | 2018-01-26 | 攀钢集团矿业有限公司 | A kind of ilmenite sorts system and method |
| CN110479477A (en) * | 2018-05-15 | 2019-11-22 | 中国地质科学院矿产综合利用研究所 | The method of rare earth ore concentrate is sorted from vanadium titano-magnetite tailing |
| CN109967222A (en) * | 2019-03-29 | 2019-07-05 | 中冶北方（大连）工程技术有限公司 | Apatite ilmenite selects titanium to drop general labourer's skill |
| CN109967222B (en) * | 2019-03-29 | 2020-10-02 | 中冶北方（大连）工程技术有限公司 | Titanium-selecting impurity-reducing process for apatite ilmenite |
| CN112156889A (en) * | 2020-09-23 | 2021-01-01 | 攀钢集团矿业有限公司 | Beneficiation method for pyroxene type ilmenite |
| CN112156889B (en) * | 2020-09-23 | 2022-05-24 | 攀钢集团矿业有限公司 | Beneficiation method for pyroxene type ilmenite |
| 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 |
| 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 |
| CN114950717A (en) * | 2022-06-07 | 2022-08-30 | 厦门紫金矿冶技术有限公司 | Rapid flotation process for copper slag with high copper simple substance content and fine embedded particle size |
| CN114950717B (en) * | 2022-06-07 | 2024-03-08 | 厦门紫金矿冶技术有限公司 | Copper slag rapid flotation process with high copper simple substance content and fine embedded granularity |
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