CN207430512U - A kind of more chopping fine mill short route ore-sorting system structures - Google Patents
A kind of more chopping fine mill short route ore-sorting system structures Download PDFInfo
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- CN207430512U CN207430512U CN201721186820.XU CN201721186820U CN207430512U CN 207430512 U CN207430512 U CN 207430512U CN 201721186820 U CN201721186820 U CN 201721186820U CN 207430512 U CN207430512 U CN 207430512U
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Abstract
A kind of more chopping fine mill short route ore-sorting system structures, it includes tower grinding machine, coarse crushing high-pressure roller mill, and technical essential is：The coarse crushing high-pressure roller mill passes sequentially through pipeline and is connected with high-pressure roller mill fine crushing, pneumatic separator, tower grinding machine, cyclone, ore slurry pump, slurry vessel, magnetic separator；A big pellet discharge mouth is additionally provided in the lower part of the pneumatic separator, which is connected with the feed inlet of high-pressure roller mill fine crushing；The cyclone bottom is connected by connecting pipeline with the feed inlet of tower grinding machine.The utility model make full use of the broken high-pressure roller mill high efficiency extruding of thickness crush and the extra-fine grinding of tower grinding machine effect, so that ore passes through how broken technique short route, the quick material size for being met the grinding of tower grinding machine, simultaneously again by means of the characteristic of tower grinding machine, easy grinding material to monomer dissociation granularity, using the high sorting index of screening installation, valuable iron is captured, may ultimately reach the purpose that more chopping fine mill short routes select iron.
Description
Technical field
The utility model is related to technical field of beneficiation more particularly to a kind of more chopping fine mill short route ore-sorting system structures.
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, and China's iron ore deposit is mostly lean ore, and grade is relatively low, and beneficiation flowsheet is complicated.It needs to arrive broken material ore grinding
The degree of monomer dissociation can be sorted.
, it is necessary to bring mill ball to certain altitude in ball mill grinding process, the steel ball after leaving falls shock, by material
It is broken, and the effect mutually ground only occurs after steel ball leaves, and steel ball is disappeared by the process of lifting and barrel body rotation
The energy of consumption grinds material uneconomical.If still use conventional beneficiation flowsheet closed circuit for two section one for complicated difficult ore dressing
Beneficiation flowsheet, then power consumption and yield are very uneconomical, so as to limit the exploitation of such difficult ore dressing.
To solve the above-mentioned problems, it is necessary to develop a kind of novel process, in the granularity of ore grinding to monomer dissociation, do not increase
Excessively high power consumption, while utilize the energy-efficient property for crushing equipment so that material is crushed by two sections and can reach fine mill size
Pan feeding requirement so as to solve the problems, such as that complicated difficult ore dressing mining is uneconomical because of caused by highly energy-consuming, and then improves complicated difficult ore dressing
Value of exploiting and utilizing.
The complicated difficult ore dressing resource reserve in China enriches, and new more chopping fines select short route ore-dressing technique to contribute to such mineral products
The utilization of resource, the purpose of the present invention are exactly to adapt to this trend and carry out.
The content of the invention
The purpose of this utility model is to provide a kind of more chopping fines and selects short route ore-sorting system structure,
The purpose of this utility model is achieved by the following technical solution：A kind of more chopping fines select short route ore-sorting system
Structure, it includes tower grinding machine, coarse crushing high-pressure roller mill, high-pressure roller mill fine crushing, pneumatic separator, tower grinding machine, cyclone, ore deposit
Stock pump, pulp tank, magnetic separator, it is characterised in that：The coarse crushing high-pressure roller mill passes sequentially through pipeline and high pressure roller mill fine crushing
Machine, pneumatic separator, tower grinding machine, cyclone, ore slurry pump, slurry vessel, magnetic separator are connected；In the lower part of the pneumatic separator
A big pellet discharge mouth is additionally provided with, which is connected with the feed inlet of high-pressure roller mill fine crushing；The eddy flow
Device bottom is connected by connecting pipeline with the feed inlet of tower grinding machine.
Material is carried out coarse fraction crushing by the coarse crushing high pressure roller, enters back into the crushing of high pressure roller fine crushing, and institute is finely divided
Material enter pneumatic separator, be classified by pneumatic separator, and sort out the material no more than 1mm, enter tower
Grinding machine, remaining large granular materials continue to crush back to high-pressure roller mill fine crushing.
The qualified sorting material sorted enters after tower grinding machine is mixed with water and carries out fine grinding again as ore pulp, utilizes rotation
The ultra-fine grain that stream device carries out monomer dissociation material sorts.
Coarse crushing high-pressure roller mill, high-pressure roller mill fine crushing for crushing equipment, pneumatic separator be bulky grain sorting equipment, tower
Grinding machine is milling apparatus, and cyclone is classifying equipoment, and ore slurry pump is slurry pipeline transport equipment, and slurry vessel stores transfer for slurry and sets
It is standby.Coarse-grained material 15-20mm enters coarse crushing high-pressure roller mill, it is crushed after material enter high-pressure roller mill fine crushing, through squeezing
Material particles enter pneumatic separator after pressure, sort the material that particle is not more than 1mm, and the granule materials more than 1mm are returned through pipeline
High-pressure roller mill fine crushing is returned to, powder enters tower grinding machine and reconciles into ore pulp with water, and after agitated spiral fine grinding, slurry reaches monomer
The granularity of dissociation is overflowed by the discharge port of tower grinding machine side, and slurry enters slurry vessel, and the feed inlet through ore slurry pump, ore pulp exists
Cyclone feed inlet is pumped under driving motor effect to be classified, the qualified material after classification is entered by cyclone discharge port
Next stage sorting equipment.Core equipment in this structure is coarse crushing high-pressure roller mill, high-pressure roller mill fine crushing, tower grinding machine.
Coarse crushing high-pressure roller mill, high-pressure roller mill fine crushing belong to large-scale pressure and squeeze broken equipment, used in two kinds of high-pressure roller mills
Stud and stud gap are different, are respectively suitable for large or fine granule crushing, the former stud gap is big compared with the latter, granule materials after crushing
Be suitable for the feed needs of the latter, the two series connection and pneumatic separator formed it is broken cycle it is closed circuit so that expiring through pneumatic separating
The particle of sufficient tower grinding machine requirement enters next equipment.
High-pressure roller mill is roller pair breaking equipment, using the roller tire in two pairs of rollers and stud to material to reaching to extruding
The purpose that material crushes because material belongs to fragile material, under the extruding of two pairs of rollers, also easily generates fine fisssure inside material particles
Line is conducive to material further broken and monomer dissociation.High-pressure roller mill two pairs of rollers are driven respectively by two motor, are being squeezed
In production process, the redundancy power consumption without the dribbling toss for being similar to ball mill, therefore its production cost is low compared with ball mill.
Abrasive media ball, the shuttling movement above and below ball medium under the drive of agitating auger are equipped in tower grinding machine milling apparatus
It itself is also rotating simultaneously.Material is grated under the action of powerful shearing force, abrasive power, ball pressure medium.Lower part 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 precipitated with gravity.Overflow pulp flow to anti-overground pre-classification with tangential direction and fills in housing
It puts, qualified grain size ore pulp is discharged to the next step through gape, and coarse granule regrinds returning charge 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 will be in 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 into cyclone, high speed rotational flow field is generated in cylindrical cavity.The big component of ore pulp Midst density is under the action of eddy flow field
It axially simultaneously moves downward, moves radially outwards, moved downward reaching cone segments along wall, and discharged by underflow opening,
Material is thus formed outer swirling flow fields；The small component of density is moved to central axial direction, and forms one upwards in axis centre
The inside vortex of movement, is then discharged by overflow port, has thus achieved the purpose that release mesh needed for screening installation.
Complicated difficult ore dressing gangue is chimeric with valuable element, and the utility model makes full use of the broken high-pressure roller mill of thickness efficiently to squeeze
Crush broken and tower grinding machine extra-fine grinding effect so that ore is quickly met tower mill by how broken technique short route
The material size of machine grinding, while again by means of the characteristic of tower grinding machine, the granularity of easy grinding material to monomer dissociation, further through
The effect that cyclone classification sorts selects the fines of suitable particle size, and large granular materials are returned tower grinding machine and re-start grinding, rotation
The qualified fines of stream device sorting enters screening installation, using the high sorting index of screening installation, captures valuable iron, may ultimately reach more
Chopping fine mill short route selects the purpose of iron.The system structure also eliminates a secondary grinding, adds a two-stage crushing, utilizes high pressure
The high efficiency of roller, so as to improve the utilization rate of the energy.
Description of the drawings
Attached drawing 1 arranges schematic diagram for Tthe utility model system structure；
Attached drawing 2 is the high-pressure roller mill structure schematic diagram of Fig. 1；
Attached drawing 3 is the pneumatic separator structure schematic diagram of Fig. 1；
Attached drawing 4 is the tower mill structure simplified schematic diagram of Fig. 1；
Attached drawing 5 is the magnetic separator structure schematic diagram of Fig. 1.
Critical piece explanation in attached drawing：1 is coarse crushing high-pressure roller mill, and 2 be high-pressure roller mill fine crushing, and 3 be wind-force point
Grade machine, 4 be tower grinding machine, and 5 be pulp tank, and 6 Pulp pumps, 7 be cyclone, and 8 be magnetic separator.
Below in conjunction with attached drawing by example, the utility model is described in further detail, but following examples are only
The example of the utility model does not represent the rights protection scope that the utility model is limited, the right of the utility model
Protection domain is subject to claims.
Specific embodiment
Example 1
As shown in Figs. 1-5,1 in figure is coarse crushing high-pressure roller mill, and 2 be high-pressure roller mill fine crushing, and 3 be pneumatic separator, 4
It is pulp tank for tower grinding machine, 5,6 ore slurry pumps, 7 be cyclone, and 8 be magnetic separator；The coarse crushing high-pressure roller mill 1 passes sequentially through
Pipeline is connected with high-pressure roller mill 2 fine crushing, pneumatic separator 3, tower grinding machine 4, cyclone 7, ore slurry pump 6, pulp tank 5, magnetic separator 8
It connects；A big pellet discharge mouth 302 is additionally provided in the lower part of pneumatic separator 3, the big pellet discharge mouth 302 and high pressure roller fine crushing
The feed inlet of grinding machine 2 is connected；7 bottom of cyclone is connected by connecting pipeline with the feed inlet 405 of tower grinding machine 4.
Raw ore material is entered in coarse crushing high-pressure roller mill 1, is entered by feeding mouth 101, is squeezed in extrusion chamber 102
Pressure carries out discharge by discharge gate 103；High-pressure roller mill 2 fine crushing is entered according to said sequence, the powder after extruding enters
Pneumatic separator 3.Entered by sorting machine feeding mouth 301, in the case where the impeller of driving device 304 drives, coarse granule after sorting by
Big pellet mouth 302 is discharged, and high-pressure roller mill 2 fine crushing is returned to after boosted, the qualified particle of sorting is through fines discharge gate 303
Discharge；Qualified fine powder enters grinding cavit 403 by the feed inlet 405 of tower grinding machine 4, under the drive of driving motor 401, is promoted
Spiral 404 drives powder and abrasive media mutually to be ground.Ore pulp after qualification enters pulp tank 5, ore deposit through gape 402
Slurry is connected by slurry vessel discharge port through ore slurry pump 6 with 7 feed inlet of cyclone with driving motor；7 discharge port of cyclone passes through
Mineral-feeding pipe is connected with the feed pipe 801 of magnetic separator 8, and 7 underflow opening of cyclone then passes through pipeline and 4 feed inlet of tower grinding machine, 405 phase
Connection；Concentrate is discharged by gape 803 after magnetic separator 8 is selected.
Material is carried out coarse fraction crushing by coarse crushing high pressure roller, enters back into the crushing of high pressure roller fine crushing, finely divided material
Pneumatic separator is entered, the material no more than 1mm is sorted out by pneumatic separator, rest materials return to high pressure roller mill fine crushing
Machine continues to crush.It is finally reached the energy saving purpose of much broken and lessmill.Concrete structure is as follows with technical solution：
Coarse crushing high-pressure roller mill 1 and high-pressure roller mill fine crushing 2 are efficiency crushing equipment, are distinguished using its different extrusion ratio
Obtain varigrained miberal powder.By the extruding of two steps the granularity of material is made to reach the condition met into tower grinding machine 4, so as to save
The secondary grinding equipment such as ball mill.Its primary structure is made of feeding warehouse 101, extrusion cabin 102 and discharge bin 103, material by
Enterprising feed bin 101, which enters, to be obtained squeezing powder successively after extrusion cabin 102 and discharge bin 103.
Pneumatic separator 3 is particle sorting equipment, under the rotation of driving device 304, by arranging after bulky grain is sorted
Material mouth 302 re-starts attrition crushing back to high-pressure roller mill 2 fine crushing, and qualified powder enters tower grinding machine through discharge gate 303
4.
Tower grinding machine 4 is milling apparatus, and cyclone 7 is superfine granule classifying equipoment, ore slurry pump 6 is slurry pipeline transport equipment, slurry
Slot 5 stores relay device for slurry.Powder, into tower grinding machine 4, after agitated 403 fine grinding of spiral, is expected by tower mill feeding mouth 405
Slurry reaches the granularity of monomer dissociation, is overflowed by discharge port 406, and slurry enters slurry vessel 5 by pipeline, after natural subsidence, by pipe
Road is pumped to cyclone 7 through ore slurry pump 6 and is classified, and the qualified material after classification is sent into magnetic by 7 discharge port of cyclone through pipeline
Select machine 8.
The effect of cyclone 7 is that the water of the certain density contrast ground in 4 milling apparatus of tower grinding machine-miberal powder two-phase ore pulp exists
It is separated under the action of centrifugal force.Ore pulp is generated in cylindrical cavity and revolved at a high speed tangentially into cyclone with certain pressure
Turn of tidal stream field.The big component of ore pulp Midst density axially simultaneously moves downward under the action of eddy flow field, moves radially outwards,
It reaches cone segments to move downward along wall, and is 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 overflow port, has thus achieved the purpose that sort release mesh needed for magnetic separator 8.
It is mainly characterized by that high to the fine fraction iron ore rate of recovery, separation index is good, work efficiency is high with magnetic separator 8, can meet
The needs of exhibition are carefully published in the fine grinding of iron ore industry.It is mainly characterized by magnetic separator belong to the gravity treatment of magnetic-type magnetic field magnetic elutriation set
It is standby, for the selected operation of iron ore beneficiating factory.It is miscellaneous to reduce silicon, phosphorus, sulphur etc. for the low-grade final concentrate of the selected magneticore-dressing plant of magnetic separator purposes
Matter content, the intermediate products such as concentrate during the acquisition selected magnetic separation of high-grade magnetite concentrate, obtains qualified final concentrate in advance.
Claims (2)
1. a kind of more chopping fine mill short route ore-sorting system structures, it includes tower grinding machine, coarse crushing high-pressure roller mill, high pressure roller fine crushing
Grinding machine, pneumatic separator, tower grinding machine, cyclone, ore slurry pump, pulp tank, magnetic separator, it is characterised in that：The coarse crushing high pressure
Roller mill passes sequentially through pipeline and high-pressure roller mill fine crushing, pneumatic separator, tower grinding machine, cyclone, ore slurry pump, slurry vessel, magnetic
Machine is selected to be connected；A big pellet discharge mouth is additionally provided in the lower part of the pneumatic separator, the big pellet discharge mouth with it is fine crushing
The feed inlet of high-pressure roller mill is connected；The cyclone bottom is connected by connecting pipeline with the feed inlet of tower grinding machine.
2. more chopping fine mill short route ore-sorting system structures according to claim 1, it is characterised in that：The big pellet discharge
Big pellet in mouthful refers to the granule materials of pellet ﹥ 1mm.
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| CN201721186820.XU CN207430512U (en) | 2017-09-16 | 2017-09-16 | A kind of more chopping fine mill short route ore-sorting system structures |
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| CN201721186820.XU CN207430512U (en) | 2017-09-16 | 2017-09-16 | A kind of more chopping fine mill short route ore-sorting system structures |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112206907A (en) * | 2020-12-09 | 2021-01-12 | 湘潭大学 | Sepiolite ore powder grinding and grading method based on negative pressure screening |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112206907A (en) * | 2020-12-09 | 2021-01-12 | 湘潭大学 | Sepiolite ore powder grinding and grading method based on negative pressure screening |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
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: 113000 Building A2-7, Doctoral Town, East of Wangli Street, Fushun Economic Development Zone, Liaoning Province Patentee before: Shenyang Hongji Mining and Metallurgical Engineering Technology Co.,Ltd. Address after: 113000 Building A2-7, Doctoral Town, East of Wangli Street, Fushun Economic Development Zone, Liaoning Province Patentee after: Shenyang Hongji Mining and Metallurgical Engineering Technology Co.,Ltd. Address before: 113000 Building A2-7, Doctoral Town, East of Wangli Street, Fushun Economic Development Zone, Liaoning Province Patentee before: SHENYANG ZHIGU INDUSTRIAL Co.,Ltd. Address after: 113000 Building A2-7, Doctoral Town, East of Wangli Street, Fushun Economic Development Zone, Liaoning Province Patentee after: SHENYANG ZHIGU INDUSTRIAL Co.,Ltd. Address before: 113000 Building A2-7, Doctoral Town, East of Wangli Street, Fushun Economic Development Zone, Liaoning Province Patentee before: SHENYANG ZHIGU CONSTRUCTION DEVELOPMENT Co.,Ltd. |
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Effective date of registration: 20200304 Address after: 113000 1501, No. 75-1, Jinfeng street, Shenfu New District, Shenyang City, Liaoning Province Patentee after: Shenyang Shengshi Wuhuan Technology 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. |
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| CP02 | Change in the address of a patent holder |
Address after: 113122 No. 69, Shendong seventh Road, Shenfu demonstration area, Shenyang City, Liaoning Province Patentee after: Shenyang Shengshi Wuhuan Technology Co.,Ltd. Address before: 113000 1501, no.75-1, Jinfeng street, Shenfu New District, Shenyang City, Liaoning Province Patentee before: Shenyang Shengshi Wuhuan Technology Co.,Ltd. |
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