CN109158202A - Broken-screening-washup the technique of the high high water earth's surface mixing bloodstone of mud - Google Patents
Broken-screening-washup the technique of the high high water earth's surface mixing bloodstone of mud Download PDFInfo
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- CN109158202A CN109158202A CN201811010585.XA CN201811010585A CN109158202A CN 109158202 A CN109158202 A CN 109158202A CN 201811010585 A CN201811010585 A CN 201811010585A CN 109158202 A CN109158202 A CN 109158202A
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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
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
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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
- B03B1/00—Conditioning for facilitating separation by altering physical properties of the matter to be treated
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- Disintegrating Or Milling (AREA)
Abstract
The present invention relates to a kind of broken-screening-washup techniques of high high water earth's surface mixing bloodstone of mud, including being 30%~35% by Iron grade in raw ore feed bin, sludge content 20%~40%, granularity is that the mixing bloodstone of 0-750mm feeds coarse crushing operation, in broken operation and operation fine crushing three sections of crushing circuits, the coarse crushing operation is using roller type sieving machine and carries out screening desliming to rod-toothed crusher and is crushed, washup desliming and separating dry space from moist space are carried out using rotating cylinder log washer and drum sieve again, broken gyratory crusher-dry type double-deck screen shale shaker is closed circuit in broken operation use in described, handle drum sieve oversize；The undersize of drum sieve obtains selected ore pulp through two sections of wet type single-deck vibrating screens-cyclone group-dewatering screen operation；The operation fine crushing uses gyratory crusher fine crushing and linear vibrating screen, obtains into mill raw material.The present invention efficiently solves mineral adhesion blockage problem, and considerably reduces energy consumption.
Description
Technical field
The invention belongs to iron ore beneficiation technical field, broken-sieve of especially a kind of high water earth's surface mixing bloodstone of high mud
Point-washup technique.
Background technique
Bloodstone is widely distributed, and earth's surface mine aoxidizes ratio more thoroughly, be mostly bloodstone due to contacting for a long time with oxygen
Class includes bloodstone, martite, limonite and goethite.Earth's surface bloodstone most weathering Erosion time is long, more loose
Soft, sludge content specific gravity is larger, general up to 20%~40%.Since mineral are located at earth's surface, when rainy season, rainwater can permeate
Earth's surface ore bed, part rainwater are absorbed by sludge, cause mineral aqueous higher, and general up to 15% or so, aqueous sludge is tacky,
Earth's surface bloodstone is caused to be presented high mud, the characteristics of Gao Shui, high viscosity.Current iron ore mine coarse crushing mostly uses greatly gyratory crusher and jaw
Formula crusher, the gape of such coarse smash equipment is easily by high mud, and Gao Shui, the mineral blocking of high viscosity is to influence to give birth to
It produces；Equally, if high mud after coarse crushing, Gao Shui, the mineral of high viscosity directly to such as subsequent broken-dry screening operation, in
Fine crusher and screening plant can also block, this will substantially reduce the equipment operation rate of whole system, substantially reduce production
Amount.And for the ore of this high mud, if this part iron content sludge will enter ore grinding and make using traditional crushing circuit
Industry, this will greatly increase the mine amount and energy consumption of ore grinding.Most of earth's surface bloodstone grades of current iron ore mine are lower, exist mostly
Between 30%~35%, for a kind of iron ore for needing mill to select upgrading.Currently since earth's surface bloodstone viscosity is high, its is right in order to prevent
Broken, screening and charging and discharging facility cause viscous blocking, most of dressing plants using coarse crushing+Semi-Autogenous crushing process, it is this
Technique relative to traditional coarse crushing+in broken+fine crushing crushing process, shorten broken process, do not meet the section of much broken and lessmill
Energy principle, energy consumption is higher and increases Semi-Autogenous required dielectric dissipation.So we can effectively solve it is necessary to develop one kind
Certainly mineral adhesion blockage problem, and can effectively energy-efficient low-grade, high mud, Gao Shui, the anti-blocking section of high viscosity earth's surface bloodstone
It can technique.
Summary of the invention
The object of the present invention is to provide one kind can effectively solve the problem that mineral adhesion blockage problem, and being capable of energy-efficient high mud height
Water earth's surface mixes the broken-screening-washup technique of bloodstone.
The purpose of the present invention is what is realized by following technical proposals:
A kind of broken-screening-washup the technique of mud of the invention high water earth's surface mixing bloodstone, including by iron product in raw ore feed bin
Position 30%~35%, sludge content 20%~40%, granularity are that the mixing bloodstone of 0-750mm feeds coarse crushing through heavy-duty plate feeder
Operation, in broken operation and operation fine crushing three sections of crushing circuits, which is characterized in that
The coarse crushing operation carries out prescreening desliming using roller type sieving machine, is crushed, adopts using to rod-toothed crusher
Washup desliming and separating dry space from moist space are carried out with rotating cylinder log washer and drum sieve, drum sieve 150mm-36mm oversize is fed
In broken operation, it is de- that the undersize that the granularity of drum sieve is 36mm~0mm feeds two sections of wet type single-deck vibrating screen-cyclone groups-
Water sieve operation obtains selected ore pulp；
Broken gyratory crusher-dry type double-deck screen shale shaker is closed circuit in broken operation use in described, handles drum sieve oversize；
The operation fine crushing is using gyratory crusher fine crushing and linear vibrating screen, on the sieve for handling two sections of wet type single-deck vibrating screens
The intermediate products of product and dry type double-deck screen shale shaker are obtained into mill raw material.
The coarse crushing operation is that the mixing bloodstone that granularity is 0-750mm is fed roller type sieving machine, roller type sieving machine
Roller spacing be 150mm；The oversize of roller type sieving machine is fed to rod-toothed crusher, to the 150mm-0's of rod-toothed crusher
The undersize merging of the 150mm-0 of product and roller type sieving machine feeds the progress washup of rotating cylinder log washer through belt feeder and takes off
Mud and separating dry space from moist space；The discharge of rotating cylinder log washer feeds drum sieve, on the dry screen of 150mm~36mm of drum sieve
Material by belt feeder feed middle particle storehouse by the oscillating feeder of its underpart feed in broken gyratory crusher in broken operation.
Two sections of wet type coarse grain single-deck vibrating screens are vibrated using wet type coarse grain single-deck vibrating screen and wet type particulate single layer
Sieve, the undersize of 8mm~0 of wet type coarse grain single-deck vibrating screen feed the particulate single-deck vibrating screen of wet type；The wet type particulate list
Layer vibrating screen 2mm~0 undersize feed through cyclone group to mine pump pond through Pulp pump feed cyclone group-dewatering screen into
Entering continuous two-stage dewatering and graded operation, the coarse grain sand setting of cyclone group feeds dewatering screen and carries out secondary dehydration and graded operation,
The dewatering screen undersize return cyclone of 0.5mm~0 forms closed circuit；The yield of cyclone is 30%, and granularity is -200 mesh 50%
~60% fine fraction overflow product feeds slurry concentrating pond, and the underflow in slurry concentrating pond feeds mill head storage tank through underflow pump
Mine is given as subsequent magnetic concentration working afterwards, the overflow in slurry concentrating pond is as recirculated water decyclization pump works.
Broken operation is to feed the dry type on-the-sieve material of 150mm~36mm of drum sieve 7 by belt feeder in described
The oscillating feeder that its underpart is crossed in middle particle storehouse feed in broken gyratory crusher in broken operation, in broken gyratory crusher product
Dry type double-deck screen shale shaker is fed by belt feeder, the oversize of dry type double-deck screen shale shaker+36mm passes through broken in sealing-tape machine return
Feed bin forms closed circuit crushing.
The operation fine crushing is by dry type oversize that the granularity of wet type coarse grain single-deck vibrating screen is 36mm~8mm, dry
The intermediate products merging that the granularity of formula double-deck screen shale shaker is 36mm~8mm passes through after belt feeder feeds the feed bin fine crushing of operation fine crushing
Belt feeder feeds gyratory crusher fine crushing and enters fine crushing-screening closed-circuit operation.
Fine crushing-screening closed-circuit operation includes that the granularity that will be fed in feed bin fine crushing is the product of 36mm~8mm through belt feeder
Gyratory crusher fine crushing is fed, the ore discharge of gyratory crusher fine crushing feeds straight-line oscillation through feed hopper fine crushing and belt conveyor
Sieve, the oversize of linear vibrating screen return to feed hopper fine crushing, and the undersize of 8mm~0 of linear vibrating screen, dry type are double-deck
Dry type oversize, the dewatering screen of the undersize of 8mm~0mm of vibrating screen, 8mm~2mm of wet type particulate single-deck vibrating screen
23 2mm~0.5mm dehydration after oversize together constitute yield be 70% 8mm~0 grinding operation enter to grind raw material to
Enter to grind material storage yard,
Gather materials stockyard equipped with multiple rows of material mouth in the ore grinding that enters, is equipped with heavy-duty plate feeder and conveying in multiple rows of material mouth lower part
Belt, conveyor belt are connected with primary grinding system.
The invention has the advantages that
1) technique of the invention it is broken using coarse crushing+in broken+fine crushing technique, relative to traditional coarse crushing+Semi-autogenous Grinding Technology,
Although increasing broken operation number of segment, meets the energy saving principle of much broken and lessmill, reduce the consumption of milling medium.
2) technique coarse crushing of the invention is using roller type sieving machine+to rod-toothed crusher operation, and sludge is from roller type sieving machine
It is dropped between big spacing roll gap, avoids viscous blocking of the sludge to subsequent coarse crushing operation, and between the big roller of roller spacing roller type sifting
Big space width away from and to rod-toothed crusher can also eliminate most of height and glue blocking of the aqueous sludge to equipment；Effective solution
The blockage problem of coarse crushing operation.
3) coarse crushing product of the invention directly feeds washup operation, and the undersize of washup directly feeds two sections of wet screenings, leads to
The desliming for crossing washup, wet screening, is adequately washed into ore pulp for sludge, and operation is cleaned in the desliming for realizing mineral, and sludge does not have
Have it is fine crushing in entrance and its to ore discharge operation, it is effective to avoid blocking of the sludge to equipment and charging and discharging equipment, ensure that whole
The operating rate of a system.
4) process flow of the invention, yield 30%, -200 mesh contents account for 70% mill head, grind without one section
Mine directly feeds subsequent magnetic concentration working, thus greatly reduces the mine-supplying quantity of primary grinding, and ore grinding energy consumption greatly reduces.
6) process flow of the invention, ore grinding stockyard is conical stockyard, and is fed using multiple rows of material mouth and heavy-duty plate
The problem of machine not only avoids discharge gate and does not have to for a long time, material hardened blocking, and relative to gravity flow discharge, heavy-duty plate
The problem of batcher forces discharge can be with the blocking of effective solution material heap discharge gate.
Detailed description of the invention
Fig. 1 is flowage structure schematic diagram of the invention.
Specific embodiment
A specific embodiment of the invention is further illustrated with reference to the accompanying drawing.
As shown in Figure 1, a kind of broken-screening-washup technique of high high water earth's surface mixing bloodstone of mud of the invention, including
By Iron grade 30%~35% in raw ore feed bin 1, sludge content 20%~40%, granularity is the mixing bloodstone of 0-750mm through heavy type
Apron feeder 2 feed coarse crushing operation, in broken operation and operation fine crushing three sections of crushing circuits, mineral species include red iron
Mine, martite, limonite, goethite；It is characterized in that,
The coarse crushing operation carries out prescreening desliming using roller type sieving machine 3, is crushed using to rod-toothed crusher 4,
Washup desliming and separating dry space from moist space are carried out using rotating cylinder log washer 6 and drum sieve 7,7 oversize of drum sieve feed in it is broken
Operation, the undersize that the granularity of drum sieve 7 is 36mm~0mm feed two sections of wet type single-deck vibrating screens-cyclone group-dewatering screen
Operation obtains selected ore pulp；
Broken gyratory crusher 11- dry type double-deck screen shale shaker 14 is closed circuit in broken operation use in described, produces on the processing sieve of drum sieve 7
Product；
The operation fine crushing uses gyratory crusher 25 fine crushing and linear vibrating screen 27, handles two sections of wet type single-deck vibrating screens
The intermediate products of oversize and dry type double-deck screen shale shaker 14 are obtained into mill raw material.
Coarse crushing operation of the present invention is that the mixing bloodstone that granularity is 0-750mm is fed roller type sieving machine 3, roll-type
The roller spacing of screening machine 3 is 150mm；The oversize of roller type sieving machine 3 is fed to rod-toothed crusher 4, to rod-toothed crusher 4
The undersize merging of the 150mm-0 of the product and roller type sieving machine 3 of 150mm-0 feeds rotating cylinder through belt feeder A 5 and washes
Mine machine 6 carries out washup desliming and separating dry space from moist space；The discharge of rotating cylinder log washer 6 feeds drum sieve 7, drum sieve 7
The dry type on-the-sieve material of 150mm~36mm by belt feeder B 8 feed middle particle storehouse 9 by the oscillating feeder 10 of its underpart to
Enter broken gyratory crusher 11 in broken operation.
Two sections of wet types coarse grain single-deck vibrating screen of the present invention uses wet type coarse grain single-deck vibrating screen 12 and wet type particulate
Single-deck vibrating screen 15, the undersize of 8mm~0 of wet type coarse grain single-deck vibrating screen 12 feed the particulate single-deck vibrating screen 15 of wet type；
The undersize of 2mm~0 of the wet type particulate single-deck vibrating screen 15 feed through cyclone group to mine pump pond 20- Pulp pump 19 to
Enter cyclone group 17- dewatering screen 18 and enter continuous two-stage dewatering and graded operation, the coarse grain sand setting of cyclone group 17 feeds dehydration
Sieve 18 carries out secondary dehydration and graded operation, and the dewatering screen undersize return cyclone group 17 of 0.5mm~0 forms closed circuit；Rotation
The yield for flowing device group 17 is 30%, and granularity is that the fine fraction overflow product of -200 mesh 50%~60% feeds slurry concentrating pond 30, ore pulp
The underflow of concentration basin gives mine, slurry concentrating pond 30 as subsequent magnetic concentration working after underflow pump 31 feeds mill head storage tank 32
Overflow as recirculated water decyclization pump works 21.
In described broken operation be by the dry type on-the-sieve material of 150mm~36mm of drum sieve 7 by belt feeder B 8 to
Enter particle storehouse 9 by the oscillating feeder 10 of its underpart feed in broken gyratory crusher 11 in broken operation, in broken circular cone it is broken
The product of broken machine 11 feeds dry type double-deck screen shale shaker 13, the oversize of dry type double-deck screen shale shaker+36mm by belt feeder C 16
Closed circuit crushing is formed by particle storehouse 9 in the return of sealing-tape machine 12.
Operation fine crushing of the present invention is by the granularity of wet type coarse grain single-deck vibrating screen 12 on the dry screen of 36mm~8mm
Product, the intermediate products merging that the granularity of dry type double-deck screen shale shaker 14 is 36mm~8mm feed operation fine crushing through belt feeder E 23
Feed bin fine crushing 24 after feed gyratory crusher 25 fine crushing through belt feeder and enter fine crushing-screening closed-circuit operation.
Fine crushing-screening closed-circuit operation of the present invention is by the ore discharge of gyratory crusher 25 fine crushing through feed hopper 26 fine crushing
Linear vibrating screen 27 is fed with belt conveyor, the oversize of linear vibrating screen 27 returns to feed hopper 24 fine crushing, straight line vibration
The undersize of 8mm~0 of dynamic sieve 27, the undersize of 8mm~0mm of dry type double-deck screen shale shaker 14, the vibration of wet type particulate single layer
Oversize together constitutes production after 2mm~0.5mm dehydration of the dry type oversize, dewatering screen 18 of 8mm~2mm of dynamic sieve 15
The raw material that enters to grind of the grinding operation for 8mm~0 that rate is 70% feeds mill original through belt feeder D 22 and powder stockyard belt conveyor 28
Material heap field.
Technique of the invention it is broken using coarse crushing+in broken+fine crushing technique, relative to traditional coarse crushing+Semi-Autogenous work
Skill meets the energy saving principle of much broken and lessmill, reduces the consumption of milling medium although increasing broken operation number of segment.
The present invention gathers materials stockyard equipped with multiple rows of material mouth in the ore grinding that enters, and gives in multiple rows of material mouth lower part equipped with heavy-duty plate
Material machine 29 and conveyor belt 33, conveyor belt 33 are connected with primary grinding system.Ore grinding stockyard of the invention is cone
Stockyard, and multiple rows of material mouth and heavy-duty plate feeder 29 are used, it not only avoids discharge gate and does not have to for a long time, the hardened blocking of material
The problem of, and relative to gravity flow discharge, heavy-duty plate feeder forces discharge that can block with effective solution material heap discharge gate
The problem of.
Claims (7)
1. a kind of broken-screening-washup technique of the high water earth's surface mixing bloodstone of high mud, including by Iron grade in raw ore feed bin
30%~35%, sludge content 20%~40%, the mixing bloodstone that granularity is 0-750mm feeds coarse crushing through heavy-duty plate feeder and makees
Industry, in broken operation and operation fine crushing three sections of crushing circuits, which is characterized in that
The coarse crushing operation carries out prescreening desliming using roller type sieving machine, is crushed, adopts using to rod-toothed crusher
Washup desliming and separating dry space from moist space are carried out with rotating cylinder log washer and drum sieve, drum sieve 150mm-36mm oversize is fed
In broken operation, it is de- that the undersize that the granularity of drum sieve is 36mm~0mm feeds two sections of wet type single-deck vibrating screen-cyclone groups-
Water sieve operation obtains selected ore pulp；
Broken gyratory crusher-dry type double-deck screen shale shaker is closed circuit in broken operation use in described, handles drum sieve oversize；
The operation fine crushing is using gyratory crusher fine crushing and linear vibrating screen, on the sieve for handling two sections of wet type single-deck vibrating screens
The intermediate products of product and dry type double-deck screen shale shaker are obtained into mill raw material.
2. a kind of broken-screening-washup technique of high high water earth's surface mixing bloodstone of mud according to claim 1, special
Sign is that the coarse crushing operation is that the mixing bloodstone that granularity is 0-750mm is fed roller type sieving machine, roller type sieving machine
Roller spacing is 150mm；The oversize of roller type sieving machine feeds the production to rod-toothed crusher, to the 150mm-0 of rod-toothed crusher
The undersize merging of the 150mm-0 of product and roller type sieving machine feeds the progress washup of rotating cylinder log washer through belt feeder A and takes off
Mud and separating dry space from moist space；The discharge of rotating cylinder log washer feeds drum sieve, on the dry screen of 150mm~36mm of drum sieve
Material by belt feeder B feed middle particle storehouse by the oscillating feeder of its underpart feed in broken cone crusher in broken operation
Machine.
3. a kind of broken-screening-washup technique of high high water earth's surface mixing bloodstone of mud according to claim 1,
It is characterized in that, two sections of wet type coarse grain single-deck vibrating screens are shaken using wet type coarse grain single-deck vibrating screen and wet type particulate single layer
Dynamic sieve, the undersize of 8mm~0 of wet type coarse grain single-deck vibrating screen feed the particulate single-deck vibrating screen of wet type；The wet type particulate
The undersize of 2mm~0 of single-deck vibrating screen, which is fed, feeds cyclone group-dewatering screen through Pulp pump to mine pump pond through cyclone group
Into continuous two-stage dewatering and graded operation, the coarse grain sand setting of cyclone group feeds dewatering screen and carries out secondary dehydration and classification work
Industry, the dewatering screen undersize return cyclone of 0.5mm~0 form closed circuit；The yield of cyclone is 30%, and granularity is -200 mesh
50%~60% fine fraction overflow product feeds slurry concentrating pond, and the underflow in slurry concentrating pond feeds mill head storage through underflow pump
Mine is given as subsequent magnetic concentration working after tank, the overflow in slurry concentrating pond is as recirculated water decyclization pump works.
4. a kind of broken-screening-washup technique of high high water earth's surface mixing bloodstone of mud according to claim 1, special
Sign is, it is described in broken operation be in feeding the dry type on-the-sieve material of 150mm~36mm of drum sieve by belt feeder B
Particle storehouse by the oscillating feeder of its underpart feed in broken gyratory crusher in broken operation, in broken gyratory crusher product
Dry type double-deck screen shale shaker is fed by belt feeder C, the oversize of dry type double-deck screen shale shaker+36mm passes through broken in sealing-tape machine return
Feed bin forms closed circuit crushing.
5. a kind of broken-screening-washup technique of high high water earth's surface mixing bloodstone of mud according to claim 1, special
Sign is, the operation fine crushing is by dry type oversize that the granularity of wet type coarse grain single-deck vibrating screen is 36mm~8mm, dry type
The intermediate products merging that the granularity of double-deck screen shale shaker is 36mm~8mm passes through after belt feeder E feeds the feed bin fine crushing of operation fine crushing
Belt feeder feeds gyratory crusher fine crushing and enters fine crushing-screening closed-circuit operation.
6. a kind of broken-screening-washup technique of high high water earth's surface mixing bloodstone of mud according to claim 5, special
Sign is that the fine crushing-screening closed-circuit operation is that the granularity that will be fed in feed bin fine crushing is the product of 36mm~8mm through belt
Machine feeds gyratory crusher fine crushing, and the ore discharge of gyratory crusher fine crushing feeds straight-line oscillation through feed hopper fine crushing and belt conveyor
Sieve, the oversize of linear vibrating screen return to feed hopper fine crushing, and the undersize of 8mm~0 of linear vibrating screen, dry type are double-deck
Dry type oversize, the dewatering screen of the undersize of 8mm~0mm of vibrating screen, 8mm~2mm of wet type particulate single-deck vibrating screen
23 2mm~0.5mm dehydration after oversize together constitute yield be 70% 8mm~0 grinding operation enter to grind raw material to
Enter to grind material storage yard.
7. a kind of broken-screening-washup technique of high high water earth's surface mixing bloodstone of mud according to claim 6, special
Sign is, enters ore grinding described and gathers materials stockyard equipped with multiple rows of material mouth, multiple rows of material mouth lower part be equipped with heavy-duty plate feeder and
Conveyor belt, conveyor belt are connected with primary grinding system.
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| CN201811010585.XA CN109158202B (en) | 2018-08-31 | 2018-08-31 | Crushing-screening-washing process for high-mud high-water surface mixed hematite |
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| CN114082505A (en) * | 2021-11-11 | 2022-02-25 | 黑龙江多宝山铜业股份有限公司 | Efficient ore crushing and grinding method |
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| CN114082505A (en) * | 2021-11-11 | 2022-02-25 | 黑龙江多宝山铜业股份有限公司 | Efficient ore crushing and grinding method |
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