CN206911561U - The system architecture for improving Iron grade is carefully selected in a kind of fine grinding - Google Patents
The system architecture for improving Iron grade is carefully selected in a kind of fine grinding Download PDFInfo
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- CN206911561U CN206911561U CN201720770335.0U CN201720770335U CN206911561U CN 206911561 U CN206911561 U CN 206911561U CN 201720770335 U CN201720770335 U CN 201720770335U CN 206911561 U CN206911561 U CN 206911561U
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Abstract
The system architecture for improving Iron grade is carefully selected in a kind of fine grinding, and it includes tower grinding machine, slurry vessel, ore slurry pump, is characterized in that：Tower grinding machine discharging opening is connected by pipeline with slurry vessel charging aperture, and slurry vessel discharging opening is connected through ore slurry pump with the cyclone charging aperture with motor；Cyclone discharging opening is connected by pipeline with column magnetic separator charging aperture, and cyclone underflow opening is then connected by pipeline with tower mill feeding mouth；The bottom of column magnetic separator exports for concentrate.After powder is finely ground into tower grinding machine, slurry reaches the granularity of monomer dissociation, slurry enters slurry vessel, cyclone is pumped to through ore slurry pump ore pulp to be classified, qualified material after classification is sent into column magnetic separator through pipeline, the fines of monomer dissociation is captured under electric field action, and gangue is removed, and the concentrate obtained after fine particle separation can improve 24 percentage points.
Description
Technical field
Technical field of beneficiation is the utility model is related to, more particularly to the system architecture for improving Iron grade is carefully selected in a kind of fine grinding.
Background technology
Conventional beneficiation flowsheet is two section of one closed circuit beneficiation flowsheet, commonly uses two sections of ball mills and carries out primary grinding and two sections
Ore grinding, discharging-material size be -200 mesh account for 80%, for easily selecting iron ore, after above-mentioned technological process, Iron concentrate grade can to 58 with
On.And China's iron ore deposit is mostly lean ore, grade is relatively low, and beneficiation flowsheet is complicated.
Vanadium titano-magnetite is multielement densification symbiosis, a kind of special mineral of the difficult separation of hardly possible choosing, and conventional beneficiation flowsheet is difficult
So that iron to be reclaimed, it is serious to run tail.If material to be milled to the granularity of monomer dissociation with ball mill, power consumption and yield very without
Ji, so as to limit the exploitation of such difficult ore dressing.
In order to solve the above problems, it is necessary to develop a kind of novel process, in the granularity of ore grinding to monomer dissociation, do not increase
Too high power consumption, while utilize and catch the rate of recovery that equipment improves Iron grade, and the hair of magnetic coagulation is prevented during recovery
It is raw, it is mingled with phenomenon because of caused by magnetic coagulation so as to reduce, and then improve the rate of recovery of Iron grade.
The vanadium titano-magnetite resource reserve in China enriches, and choosing that novel fine is levigate, which puies forward grade technique, contributes to such mineral resources
Utilization, the purpose of the present invention be exactly adapt to this trend and carry out.
The content of the invention
The purpose of this utility model is to provide a kind of fine grinding and carefully selects the system architecture for improving Iron grade,
The purpose of this utility model is achieved by the following technical solution：A kind of fine grinding, which is carefully selected, to improve Iron grade and is
System structure, it includes tower grinding machine, slurry vessel, ore slurry pump, it is characterised in that：Tower grinding machine discharging opening is entered by pipeline and slurry vessel
Material mouth is connected, and slurry vessel discharging opening is connected through ore slurry pump with the cyclone charging aperture with motor；Cyclone discharging opening
It is connected by pipeline with column magnetic separator charging aperture, cyclone underflow opening is then connected by pipeline with tower mill feeding mouth；Magnetic separation
The bottom of post is concentrate discharging opening.
Described column magnetic separator is from top to bottom disposed with the mine tailing overflow launder of top tape column magnetic separator charging aperture, separation tube,
Base cone, electric control valve and concentrate discharging opening；Mine tailing discharging opening is additionally provided with mine tailing overflow launder.
Tower grinding machine is milling apparatus, and cyclone is classifying equipoment, and ore slurry pump is slurry pipeline transport equipment, and slurry vessel stores up for slurry
Transferring equipment is deposited, column magnetic separator is fines screening installation.Powder enters tower grinding machine by feed entrance, after agitated spiral fine grinding, material
Slurry reaches the granularity of monomer dissociation, is overflowed by the discharging opening of tower grinding machine sidepiece, slurry enters slurry vessel, the charging through ore slurry pump
Mouthful, ore pulp is pumped to cyclone charging aperture under motor effect and is classified, and the qualified material after classification is gone out by cyclone
Material mouth, its top feed mouth of column magnetic separator is sent into through pipeline, the fines of monomer dissociation is captured in separation tube under electric field action, arteries and veins
Stone is removed, and concentrate is obtained through discharging opening after fine particle separation, and its grade can improve 2-4 percentage points.Core in this structure
Equipment is tower grinding machine, cyclone and column magnetic separator.
Abrasive media ball is provided with tower grinding machine milling apparatus, the shuttling movement above and below ball medium under the drive of agitating auger
Itself also rotating simultaneously.Material is grated in the presence of powerful shearing force, abrasive power, ball pressure medium.Bottom particle
Abrasive areas is reached with upper up-flow.Bottoms material is mainly sieved by upper up-flow in grinding machine shell.That is the preferable particle of quality is with rising
In flow direction, coarse and larger particles are with gravitational settling.Overflow pulp flow to anti-overground pre-classification with tangential direction and filled in housing
Put, qualified grain size ore pulp is discharged to the next step through gape, and coarse granule regrinds returning charge pump through coarse grain after sinking to the bottom and is pumped into grinding
Orlop portion, regrinding.The effect that narrow grade, superfine powdery material cyclone can efficiently be produced is by tower grinding machine milling apparatus
Water-miberal powder two-phase ore pulp of certain density contrast of grinding is separated under the influence of centrifugal force.By ore pulp with certain pressure
Tangentially enter cyclone, high speed rotational flow field is produced in cylindrical cavity.The big component of ore pulp Midst density is in the presence of eddy flow field
Axially simultaneously move downward, move radially outwards, moved downward reaching cone segments along wall, and discharged by underflow opening,
Material is thus formed outer swirling flow field；The small component of density is moved to central axial direction, and upward in axis centre formation one
The inside vortex of motion, is then discharged by overfall, has thus reached the purpose of release mesh needed for sorting column magnetic separator.
It is mainly characterized by the fine fraction iron ore rate of recovery is high, separation index is good, operating efficiency is high the column magnetic separator, can be full
The needs of exhibition are carefully published in sufficient iron ore industry fine grinding.It, which is mainly characterized by column magnetic separator and belongs to electromagnetic type low-intensity magnetic field magnetic gravity treatment, washes in a pan
Equipment is washed, for the selected operation of iron ore beneficiating factory.The low-grade final concentrate of the selected magneticore-dressing plant of column magnetic separator purposes, reduce silicon, phosphorus, sulphur
Deng impurity content, the intermediate products such as concentrate during the acquisition selected magnetic separation of high-grade magnetite concentrate, obtain in advance qualified final
Concentrate.It is mainly used in capturing fine fraction concentrate in this complicated difficult selects technique, and magnetic coagulation is prevented in acquisition procedure
Occur.The generation of iron concentrate grade is reduced in concentrate so as to prevent gangue to be mixed in, and then the iron ore concentrate of acquisition is had into concentrate
Mouth discharge, reaches the purpose for improving Iron grade recovery.
Complicated difficult ore dressing gangue is chimeric with valuable element, and the utility model point is acted on using the extra-fine grinding of tower grinding machine, is made
Ore is ground to the granularity of monomer dissociation, the effect sorted further through cyclone classification selects the fines of suitable particle size, big
Grain material is returned tower grinding machine and re-starts grinding, and the qualified fines of cyclone sorting enters column magnetic separator, using column magnetic separator to thin
The high-recovery of grade iron ore, capture valuable iron, at the same prevent because granularity is meticulous and caused by magnetic coagulation, limit the folder of gangue
Band, it may ultimately reach the purpose for improving Iron grade.
Brief description of the drawings
Accompanying drawing 1 is that Tthe utility model system structure arranges sketch；
Accompanying drawing 2 is Fig. 1 tower mill structure simplified schematic diagram；
Accompanying drawing 3 is Fig. 1 column magnetic separator structure schematic diagram.
Critical piece explanation in accompanying drawing：1 is tower grinding machine, power agitating device 101, grinding chamber 102, agitating auger 103,
Support base 104, charging aperture 105, discharging opening 106；2 be cyclone, cyclone charging aperture 201, cyclone discharging opening 202；3 are
Ore slurry pump, discharging opening 301, charging aperture 302, motor 303；4 be slurry vessel；5 be column magnetic separator, mineral-feeding pipe 501, mine tailing overflow
Groove 502, upper separation tube 503, lower separation tube 504, base cone 505, the concentrate discharging opening 506 with electric control valve, mine tailing discharging opening
507th, automatically controlled 508.
Below in conjunction with accompanying drawing by example, the utility model is described in further detail, but following examples are only
Example of the present utility model, the rights protection scope that the utility model is limited, right of the present utility model are not represented
Protection domain is defined by claims.
Embodiment
Example 1
As Figure 1-3,1 in figure is tower grinding machine, and 3 be ore slurry pump, and 4 be slurry vessel, and the discharging opening of tower grinding machine 1 passes through pipe
Line is connected with the charging aperture of slurry vessel 4, and slurry vessel discharging opening is through ore slurry pump 3 and the phase of cyclone charging aperture 201 with motor
Connection；Cyclone discharging opening 202 is connected by mineral-feeding pipe with the charging aperture 501 of column magnetic separator 5, and cyclone underflow opening then passes through pipe
Line is connected with tower mill feeding mouth 105；The bottom of column magnetic separator 5 is concentrate discharging opening 506.
Described column magnetic separator 5 is from top to bottom disposed with the mine tailing overflow launder 502 of top tape column magnetic separator charging aperture, upper point
Select cylinder 503, lower separation tube 504, base cone 505, the concentrate discharging opening 506 with electric control valve；Also set up on mine tailing overflow launder 502
There is mine tailing discharging opening 507.In addition, 508 in Fig. 3 be automatically controlled.
Technical scheme is used by the utility model solves its technical problem:Make full use of with dynamic agitating device
101st, grinding chamber 102, agitating auger 103 tower grinding machine 1 extra-fine grinding effect so that ore is ground to the grain of monomer dissociation
Degree, the effect sorted is classified further through cyclone 2, selects the fines of suitable particle size, large granular materials are returned entering for tower grinding machine 1
Material mouth re-starts grinding, and the qualified fines that cyclone 2 sorts enters column magnetic separator 5, the height using column magnetic separator 5 to fine fraction iron ore
The rate of recovery, capture valuable iron, at the same prevent because granularity is meticulous and caused by magnetic coagulation, limit the entrainment of gangue, may ultimately reach
Improve the purpose of Iron grade.Concrete structure is as follows with technical scheme：
Tower grinding machine 1 is milling apparatus, and cyclone 2 is classifying equipoment, ore slurry pump 3 is slurry pipeline transport equipment, slurry vessel 4 is material
Slurry storage transferring equipment, column magnetic separator 5 are fines screening installation.Powder enters tower grinding machine 1 by tower mill feeding mouth 105, agitated
After the fine grinding of spiral 103, slurry reaches the granularity of monomer dissociation, is overflowed by discharging opening 106, and slurry enters slurry vessel 4 by pipeline,
After natural subsidence, by charging aperture 302 of the pipeline through ore slurry pump 3, ore pulp is under the effect of motor 303 from the discharging opening of ore slurry pump
301, which are pumped to cyclone charging aperture 201, is classified, and the qualified material after classification is sent into by cyclone discharging opening 202 through pipeline
The charging aperture 501 of column magnetic separator 5, pass through the fines of monomer dissociation in upper separation tube 503 and lower separation tube 504 under electric field action
It is captured, gangue is removed, and concentrate is obtained through concentrate discharging opening 506 after fine particle separation, and its grade can improve 2-4 percentage
Point.
There is abrasive media ball in the milling apparatus of tower grinding machine 1, the shuttling movement above and below ball medium under the drive of agitating auger
Itself also rotating simultaneously.Material is grated in the presence of powerful shearing force, abrasive power, ball pressure medium.Bottom particle
Abrasive areas is reached with upper up-flow.Bottoms material is mainly sieved by upper up-flow in grinding machine shell.That is the preferable particle of quality is with rising
In flow direction, coarse and larger particles are with gravitational settling.Overflow pulp flow to anti-overground pre-classification with tangential direction and filled in housing
Put, qualified grain size ore pulp is discharged to the next step through gape, and coarse granule regrinds returning charge pump through coarse grain after sinking to the bottom and is pumped into grinding
Orlop portion, regrinding.Narrow grade, superfine powdery material can efficiently be produced.
The effect of cyclone 2 is that the water of the certain density contrast ground in the milling apparatus of tower grinding machine 1-miberal powder two-phase ore pulp exists
Separated in the presence of centrifugal force.Ore pulp is tangentially entered into cyclone with certain pressure, produces in cylindrical cavity and revolves at a high speed
Turn of tidal stream field.The big component of ore pulp Midst density axially simultaneously moves downward in the presence of eddy flow field, moves radially outwards,
Reach cone segments to move downward along wall, and discharged by underflow opening, so
It is formed outer swirling flow field；The small component of density is moved to central axial direction, and forms one in axis centre
The inside vortex moved upwards, is then discharged by overfall, has thus reached the purpose of release mesh needed for sorting column magnetic separator 5.
It is mainly characterized by that high to the fine fraction iron ore rate of recovery, separation index is good, operating efficiency is high to column magnetic separator 5, can meet
The needs of exhibition are carefully published in the fine grinding of iron ore industry.It is mainly characterized by column magnetic separator and belongs to electromagnetic type low-intensity magnetic field magnetic gravity treatment elutriation
Equipment, for the selected operation of iron ore beneficiating factory.The low-grade final concentrate of the selected magneticore-dressing plant of column magnetic separator purposes, reduce silicon, phosphorus, sulphur etc.
Impurity content, the intermediate products such as concentrate during the acquisition selected magnetic separation of high-grade magnetite concentrate, qualified final essence is obtained in advance
Ore deposit.It is mainly used in capturing fine fraction concentrate in this complicated difficult selects technique, and the hair of magnetic coagulation is prevented in acquisition procedure
It is raw.The generation of iron concentrate grade is reduced in concentrate so as to prevent gangue to be mixed in, and then the iron ore concentrate of acquisition is had into concentrate mouth
Discharge, reach the purpose for improving Iron grade recovery.
Claims (2)
1. the system architecture for improving Iron grade is carefully selected in a kind of fine grinding, it includes tower grinding machine, slurry vessel, ore slurry pump, and its feature exists
In：Tower grinding machine discharging opening is connected by pipeline with slurry vessel charging aperture, and slurry vessel discharging opening is through ore slurry pump and with motor
Cyclone charging aperture be connected；Cyclone discharging opening is connected by pipeline with column magnetic separator charging aperture, and cyclone underflow opening is then
It is connected by pipeline with tower mill feeding mouth；The bottom of column magnetic separator exports for concentrate.
2. the system architecture for improving Iron grade is carefully selected in fine grinding according to claim 1, it is characterised in that：Described column magnetic separator
The mine tailing overflow launder of top tape column magnetic separator charging aperture is from top to bottom disposed with, separation tube, base cone, electric control valve and concentrate go out
Material mouth；Mine tailing discharging opening is additionally provided with mine tailing overflow launder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720770335.0U CN206911561U (en) | 2017-06-29 | 2017-06-29 | The system architecture for improving Iron grade is carefully selected in a kind of fine grinding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720770335.0U CN206911561U (en) | 2017-06-29 | 2017-06-29 | The system architecture for improving Iron grade is carefully selected in a kind of fine grinding |
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| CN206911561U true CN206911561U (en) | 2018-01-23 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110947493A (en) * | 2019-11-20 | 2020-04-03 | 郑州中科新兴产业技术研究院 | Preparation method of ultra-pure fine iron powder |
| CN112430731A (en) * | 2020-05-28 | 2021-03-02 | 王彩杰 | Method for preparing alkaline pellets from high-silicon iron powder |
-
2017
- 2017-06-29 CN CN201720770335.0U patent/CN206911561U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110947493A (en) * | 2019-11-20 | 2020-04-03 | 郑州中科新兴产业技术研究院 | Preparation method of ultra-pure fine iron powder |
| CN112430731A (en) * | 2020-05-28 | 2021-03-02 | 王彩杰 | Method for preparing alkaline pellets from high-silicon iron powder |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190923 Address after: 113000 Building A2-7, Doctoral Town, East of Wangli Street, Fushun Economic Development Zone, Liaoning Province Patentee after: Shenyang Wuwei Engineering Technology Co.,Ltd. Address before: No. 68, new Tai Road, high tech Industrial Zone, Tieling, Liaoning Province Patentee before: LIAONING WUHUAN ENGINEERING TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221201 Address after: No. 68, Xintai Road, Tieling Hi tech Industrial Development Zone, Liaoning 112600 Patentee after: Liaoning Zhigu Mining Machinery Co.,Ltd. Address before: 113000 Building A2-7, Doctoral Town, East of Wangli Street, Fushun Economic Development Zone, Liaoning Province Patentee before: Shenyang Wuwei Engineering Technology Co.,Ltd. |