CN109331987A - A kind of coal measures intergrowth mineral produces resource wholegrain grade dry separation cleaning technology and system - Google Patents
A kind of coal measures intergrowth mineral produces resource wholegrain grade dry separation cleaning technology and system Download PDFInfo
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- CN109331987A CN109331987A CN201811085371.9A CN201811085371A CN109331987A CN 109331987 A CN109331987 A CN 109331987A CN 201811085371 A CN201811085371 A CN 201811085371A CN 109331987 A CN109331987 A CN 109331987A
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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
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
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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
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
- B03B9/02—General arrangement of separating plant, e.g. flow sheets specially adapted for oil-sand, oil-chalk, oil-shales, ozokerite, bitumen, or the like
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Abstract
The invention discloses a kind of coal measures intergrowth minerals to produce resource wholegrain grade dry separation cleaning technology and system, by raw ore to be selected, the oversize after broken, screening enters photometric sorter exclusion tailing to the technique, further screening obtains two grade products after screenings is dry, respectively enters Duplex dry separator and dry method dense media fluid-bed separator sorts to obtain concentrate and tailing；The medium solid that product is taken out of obtains magnetic material concentrate after sculping screen removing rear portion enters magnetic separator removal nonmagnetics and flows back into sorting machine, another part medium solid direct reuse；The system includes that raw ore prepares and drying nest, sorting section, dense medium purifica tion circulation and density domination part.Efficient separation while carse, medium and small varigrained coal measures intergrowth mineral object can be achieved in the present invention, solves current dry mineral processing field and sorts the problems such as product is few, concentrate is of poor quality, Utilizing Rate is low, dust immoderate discharge.
Description
Technical field
The present invention relates to mineral resources to sort field, and in particular, to a kind of coal measures intergrowth mineral production resource wholegrain grade is dry
Method sorts cleaning technology and system.
Background technique
China's coal measures intergrowth mineral produce resource in not only preservation have a large amount of coal resources, there is also largely with coal symbiosis
Or other mineral resources of association, as kaolin (rock), fire clay, diatomite, bauxite, bentonite, graphite, oil shale,
The Multifarious minerals such as gypsum, silicilyte, nonmetal mineral resource especially therein is in electronics, machinery, metallurgy, light industry, change
In many industry such as work, weaving, building materials and new and high technology, there is very extensive purposes.As society is to energy demand
It is continuously increased and the raising to resources development and utilization rate, reinforces adding these mineral products while coal mining, processing and utilization
Work application study is increasingly valued by people.
Intergrowth mineral object in coal resources and coal seam centainly contact in the origin cause of formation and having on the time, preservation is in corresponding simultaneously
Among stratum, part paragenous mineral can be used as independent mineral and be exploited, and associated mineral and the close preservation in coal seam, open jointly
Adopt, the mutually embedding cloth of multi mineral component in the intergrowth mineral object exploited, can not directly as single mineral processing and utilization, because
This, coal measures intergrowth mineral object by mineral is dissociated, is classified, is sorted be each intergrowth mineral object retrofit, application basis.
China's coal measures intergrowth mineral object is largely distributed in the Northwest and the Northeast, the drought and water shortage in the region with it is high and cold
Climate characteristic determines the in short supply of water resource and applies difficulty.The traditional eddy flow field of force, gravitational field preparation equipment are mainly made with water
For medium, great lot of water resources is consumed in assorting room, while increasing the moisture of product, influence products application efficiency.In addition, coal measures
Some components such as kaolin, fire clay, bentonite in intergrowth mineral object etc. meet the easy argillization of water, deteriorate mineral interface property with
Sorting purification difficulty.
X-ray intelligence sorting machine based on photoelectric technology exploitation is suitable for sorting bulk mineral, and the sundries such as removal spoil mention
Take target mineral；Dry method dense medium fluidized bed preparation equipment using magnetite powder as medium solid can be sorted close with flexible modulation
Degree, effectively sorts 6-100mm granularity mineral, and sharpness of separation is high；Based on vibration-air-flow compound force field and autogenous medium combined type
Dry method cull eliminator can effectively solve the impurities removal of -6mm fine mineral.If each dry mineral processing equipment organic assembling formed
Combined mineral dressing technology can effectively overcome the limitation of preparation equipment itself, and sorting process is improved in optimization functions of the equipments combination,
Strengthen and the profound dry separation of coal measures intergrowth mineral object is processed, realizes that coal measures intergrowth mineral produces the efficient dry separation of resource
With clean utilization.
Summary of the invention
The object of the present invention is to provide a kind of coal measures intergrowth minerals to produce resource wholegrain grade dry separation cleaning technology.
It is a further object of the present invention to provide a kind of coal measures intergrowth minerals to produce resource wholegrain grade dry separation clean system.
To achieve the above object, The technical solution adopted by the invention is as follows: a kind of coal measures intergrowth mineral produces resource wholegrain grade
Dry separation cleaning technology, comprising the following steps:
(1) raw ore prepares and drying: the intergrowth mineral that mine or bedding plant ship produces resource raw ore and is by aperture first
The classifying screen of 200mm is classified, and oversize i.e.+200mm raw ore is crushed to -200mm through crusher, is mixed with -200mm raw ore under sieve
The classifying screen that entrance aperture is 100mm afterwards sieves；Oversize i.e. 100~200mm raw ore feeds photometric sorter and is sorted,
The concentrate product 1 and product from failing 1 that granularity is 100~200mm is discharged；Screenings is -100mm raw ore free moisture MfIt is higher than
8% be pre-dried processing, and drier, -100mm raw ore free moisture M is discharged after being down to 8% or less in moisturefIt is lower than
8% is directly entered subsequent step；
(2) raw ore: M is sortedf- 100mm raw ore lower than 8% is classified by the classifying screen that aperture is 6mm, and oversize is
100~6mm material enters dry method dense media fluid-bed separator, obtains concentrate and tailing by density separation；It sorts floating object and sinks
Object becomes concentrate product 3 and product from failing 3 after distinguishing the sculping screen de-mediated that via hole diameter is 2mm, and the medium solid of removing enters exacerbation
Matter decontamination cycle system；The screenings of 6mm classifying screen is that -6mm raw ore enters Duplex dry separator sorting, light after sorting
Product and heavy product respectively become concentrate product 2 and product from failing 2；
(3) dense medium purifica tion circulation is with density domination: being divided again after the medium solid that sculping screen removes is mixed by current divider
Stream, a part are sent into after medium magnetic separator removes nonmagnetics therein and obtain magnetic material concentrate, and another part medium solid is sent into
Dry method dense media fluid-bed separator is recycled, realize to dry method dense media fluid-bed separator internal fluidisation bed height and
The control of density.
Further, Duplex dry separator and dry method dense media fluid-bed separator are provided by ventilation apparatus empty
Aerodynamic force.
Further, photometric sorter, Duplex dry separator and dry method dense media is collected by cleaner to fluidize
Then the dust that bed sorting machine generates is sent useful component back to system circulation and is utilized.
The present invention also provides the system for implementing above-mentioned coal measures intergrowth mineral production resource wholegrain grade dry separation cleaning technology, packets
Raw ore is included to prepare and drying nest, sorting section and dense medium purifica tion cyclic part；
The raw ore prepare include with drying nest classifying screen I, iron remover, crusher, classifying screen II, surge bunker II, to
Material machine II, drier, surge bunker III and batcher III；
The sorting section include surge bunker I, batcher I, photometric sorter, classifying screen III, Duplex dry separator,
Surge bunker IV, batcher IV and dry method dense medium fluidized bed；
The dense medium purifica tion cyclic part includes sculping screen I, sculping screen II, current divider, circulatory mediator storehouse, medium batcher
I, medium surge bunker, medium batcher II, magnetic separator, magnetic concentrate store and medium batcher III are shunted；
The sieve top discharge mouth of the classifying screen I is connected with the feeding inlet of crusher, and iron remover is arranged on the sieve of classifying screen I
Between discharge port and the feeding inlet of crusher, classifying screen I sieve lower discharge port and crusher discharge port with classifying screen II
Feeding inlet is connected, and the sieve lower discharge port of classifying screen II is connected with the feeding inlet of surge bunker II, the discharge port and feed of surge bunker II
The feeding inlet of machine II is connected, and the discharge port of batcher II is connected with the feeding inlet of drier and classifying screen III respectively, drier
Discharge port is connected with the feeding inlet of surge bunker III, and the discharge port of surge bunker III is connected with the feeding inlet of batcher III, batcher III
Discharging be connected with the feeding inlet of classifying screen III；
The sieve top discharge mouth of classifying screen II is connected with the feeding inlet of surge bunker I, discharge port and the batcher I of surge bunker I
Feeding inlet is connected, and the discharge port of batcher I is connected with the feeding inlet of photometric sorter；The sieve top discharge mouth and buffering of classifying screen III
The feeding inlet in storehouse IV is connected, and the discharge port of surge bunker IV is connected with the feeding inlet of batcher IV, the discharge port of batcher IV with do
The feeding inlet of method dense medium fluidized bed is connected, the feeding inlet phase of the sieve lower discharge port and Duplex dry separator of classifying screen III
Even, the light product outlet of dry method dense medium fluidized bed is connected with the feeding inlet of sculping screen I, the heavy product of dry method dense medium fluidized bed
Outlet is connected with the feeding inlet of sculping screen II；
The sieve lower discharge port of sculping screen I and sculping screen II is connected with the feeding inlet of current divider, the discharge port point of current divider
It is not connected with the feeding inlet in circulatory mediator storehouse, shunting medium surge bunker, the discharge port in circulatory mediator storehouse and entering for medium batcher I
Material mouth is connected, and the discharge port for shunting medium surge bunker is connected with the feeding inlet of medium batcher II, the discharging of medium batcher II
Mouth is connected with the feeding inlet of magnetic separator, and the magnetic material discharge port of magnetic separator is connected with the feeding inlet of magnetic concentrate store, magnetic concentrate store
Discharge port is connected with the feeding inlet of medium batcher III, the discharge port of medium batcher I and medium batcher III with dry method weight
The medium adding mouth of medium fluidized bed is connected.
Further, the sorting upgrading system further includes air feed dust removal part, and the air feed dust removal part includes dedusting
Device II, air-introduced machine II, flowmeter, bellows chamber and air blower；
The entrance of the deduster II respectively with photometric sorter, Duplex dry separator and dry method dense medium fluidized bed
Dust emission mouth be connected, the outlet of deduster II is connected with air-introduced machine II, the dust emission mouth of deduster II and current divider
Feeding inlet is connected；Air blower connects one end of flowmeter by bellows chamber, and the other end of flowmeter is separately connected combined type dry method point
Select the ventilation opening of machine and dry method dense medium fluidized bed.
Further, the air feed dust removal part further includes deduster I, air-introduced machine I, the entrance and drier of deduster I
Air outlet be connected, the air outlet of deduster I is connected with air-introduced machine I.
Further, the screen-aperture of the classifying screen I is 200mm, and the screen-aperture of the classifying screen II is 100mm,
The screen-aperture of the classifying screen III is 6mm, and the screen-aperture of the sculping screen I and sculping screen II is 2mm.
Further, manometer is equipped with inside the dry method dense medium fluidized bed.
Preferably, the photometric sorter is X-ray sorting machine or image sorting machine.
Preferably, the drier is vibrating mixed flow dryer.
Compared with prior art, the invention has the following beneficial effects:
(1) existing dry mineral processing equipment and technical conditions are combined, it is complete creatively to propose that coal measures intergrowth mineral produces resource
Grade dry separation clean system and technique overcome the limitation of each dry mineral processing equipment itself, may be implemented it is carse, medium and small not
Efficient separation while one-size coal measures intergrowth mineral object, solve current dry mineral processing field sort product is few, concentrate is of poor quality,
The problems such as Utilizing Rate is low, dust immoderate discharge, to promote the popularization of dry mineral processing equipment to lay the foundation with applying.
(2) wholegrain grade dry separation clean system and technique can produce the concentrate product of different quality according to user demand,
The problem for overcoming the coal measures intergrowth mineral object efficient clean utilization of drought and water shortage, extremely frigid zones, to the other water shortages in world country
Coal measures intergrowth mineral object sorting be also of great significance.
(3) compared with traditional wet dressing technology, the present invention sets drying equipment, dry mineral processing equipment to related auxiliary
Standby integrated, modularization, systematization, to the mineral that granularity is -200mm according to target components (concentrate) and other components (tailing)
Density, granularity, shape, photoelectric effect difference sorted, have and do not have to water, pollution-free, Operation and Maintenance is simple, investment and fortune
The features such as row is at low cost, economic, society and obvious environment benefit.
(4) this wholegrain grade dry separation cleaning technology is suitable for oil shale, kaolin, coal, gypsum etc. based on phase simultaneously
Resource is produced like the coal measures intergrowth mineral of grading principle sorting processing.
Detailed description of the invention
Fig. 1 is the process flow chart of the method for the present invention；
Fig. 2 is the structural schematic diagram of present system；
In figure, 1- classifying screen I；2- iron remover；3- crusher；4- classifying screen II；5- surge bunker I；6- batcher I；7- light
Electric sorting machine；8- surge bunker II；9- batcher II；10- drier；11- surge bunker III；12- batcher III；13- deduster I；
14- air-introduced machine I；15- classifying screen III；16- Duplex dry separator；17- surge bunker IV；18- batcher IV；19- dry method weight
Medium fluidized bed；20- manometer；21- sculping screen I；22- sculping screen II；23- current divider；24- circulatory mediator storehouse；25- medium is given
Material machine I；26- shunts medium surge bunker；27- medium batcher II；28- magnetic separator；29- magnetic concentrate store；30- medium batcher
Ⅲ；31- deduster II；32- air-introduced machine II；33- flowmeter；34- bellows chamber；35- air blower.
Specific embodiment
In the following with reference to the drawings and specific embodiments, the present invention is made into one by taking the sorting purification process of Coaseries kaolin as an example
Step is described in detail.
As shown in Figure 1, a kind of coal measures intergrowth mineral production resource wholegrain grade dry separation cleaning technology of the invention, including with
Lower step:
(1) raw ore prepares and drying: it is 200mm that the Coaseries kaolin raw ore that mine or bedding plant ship passes through aperture first
Classifying screen classification, oversize is that+200mm kaolin raw ore through crusher is crushed to -200mm, with -200mm kaolin under sieve
The classifying screen that entrance aperture is 100mm after raw ore mixing sieves；Oversize i.e. 100~200mm kaolin raw ore feeds photoelectricity
Sorting machine is sorted, the kaolin concentrate product 1 and Kaolin Tailings product 1 that discharge granularity is 100~200mm；Screenings
That is -100mm kaolin raw ore free moisture MfBe pre-dried processing higher than 8%, moisture is discharged after being down to 8% or less
Drier, -100mm raw ore free moisture MfSubsequent step is directly entered lower than 8%；
(2) raw ore: M is sortedf- 100mm kaolin raw ore lower than 8% is classified by the classifying screen that aperture is 6mm, on sieve
Object i.e. 100~6mm material enters dry method dense media fluid-bed separator, obtains kaolin concentrate and tailing by density separation；Point
Become kaolin concentrate product 3 and product from failing 3, removing after selecting floating object and hypostasis to distinguish the sculping screen de-mediated that via hole diameter is 2mm
Medium solid enter medium solid decontamination cycle system；It is dry that the screenings of 6mm classifying screen i.e. -6mm kaolin raw ore enters combined type
The sorting of method sorting machine, light product and heavy product after sorting respectively become kaolin concentrate product 2 and product from failing 2；
(3) dense medium purifica tion circulation is with density domination: being divided again after the medium solid that sculping screen removes is mixed by current divider
Stream, a part are sent into after medium magnetic separator removes nonmagnetics therein and obtain magnetic material concentrate, and another part medium solid is sent into
Dry method dense media fluid-bed separator is recycled, realize to dry method dense media fluid-bed separator internal fluidisation bed height and
The control of density.
Air force is provided to Duplex dry separator and dry method dense media fluid-bed separator by ventilation apparatus.
Photometric sorter, Duplex dry separator and dry method dense media fluid-bed separator is collected by cleaner to produce
Then raw dust is sent useful component back to system circulation and is utilized.
As shown in Fig. 2, a kind of Coaseries kaolin wholegrain grade dry separation clean system of the invention, including raw ore prepare with
Drying nest, sorting section, dense medium purifica tion cyclic part, air feed dust removal part,
The raw ore prepares with drying nest to include classifying screen I 1, iron remover 2, crusher 3, classifying screen II 4, surge bunker II
8, batcher II 9, drier 10, surge bunker III 11 and batcher III 12, the screen-aperture of the classifying screen I 1 are 200mm, institute
The screen-aperture for stating classifying screen II 4 is 100mm, and the drier 10 is vibrating mixed flow dryer；
The sorting section includes surge bunker I 5, batcher I 6, photometric sorter 7, classifying screen III 15, combined type dry method point
Machine 16, surge bunker IV 17, batcher IV 18 and dry method dense medium fluidized bed 19 are selected, the screen-aperture of the classifying screen III 15 is
6mm, manometer 20 is equipped with inside the dry method dense medium fluidized bed 19, and the photometric sorter 7 is based on transmission of radiation, spreads out
It penetrates, reflection characteristic and material imaging color, the dry sorting equipment of shape difference identification valuable mineral, such as X-ray sorting machine, figure
As sorting machine etc.；
The dense medium purifica tion cyclic part includes sculping screen I 21, sculping screen II 22, current divider 23, circulatory mediator storehouse 24, is situated between
Matter batcher I 25 shunts medium surge bunker 26, medium batcher II 27, magnetic separator 28, magnetic concentrate store 29 and medium batcher III
30, the screen-aperture of the sculping screen I 21 and sculping screen II 22 is 2mm；
The air feed dust removal part includes deduster I 13, air-introduced machine I 14, deduster II 31, air-introduced machine II 32, flowmeter
33, bellows chamber 34 and air blower 35；
The sieve top discharge mouth of the classifying screen I 1 is connected with the feeding inlet of crusher 3, and classifying screen I 1 is arranged in iron remover 2
Sieve between top discharge mouth and the feeding inlet of crusher 3, the discharge port of the sieve lower discharge port of classifying screen I 1 and crusher 3 with classification
Sieve II 4 feeding inlet be connected, the sieve lower discharge port of classifying screen II 4 is connected with the feeding inlet of surge bunker II 8, surge bunker II 8 out
Material mouth is connected with the feeding inlet of batcher II 9, the discharge port of batcher II 9 pan feeding with drier 10 and classifying screen III 15 respectively
Mouth is connected, and the discharge port of drier 10 is connected with the feeding inlet of surge bunker III 11, the discharge port and batcher III of surge bunker III 11
12 feeding inlet is connected, and the discharging of batcher III 12 is connected with the feeding inlet of classifying screen III 15；
The sieve top discharge mouth of classifying screen II 4 is connected with the feeding inlet of surge bunker I 5, the discharge port and batcher I of surge bunker I 5
6 feeding inlet is connected, and the discharge port of batcher I 6 is connected with the feeding inlet of photometric sorter 7；The sieve top discharge of classifying screen III 15
Mouth is connected with the feeding inlet of surge bunker IV 17, and the discharge port of surge bunker IV 17 is connected with the feeding inlet of batcher IV 18, batcher
IV 18 discharge port is connected with the feeding inlet of dry method dense medium fluidized bed 19, and the sieve lower discharge port and combined type of classifying screen III 15 are dry
The feeding inlet of method sorting machine 16 is connected, and the light product outlet of dry method dense medium fluidized bed 19 is connected with the feeding inlet of sculping screen I 21,
The heavy product outlet of dry method dense medium fluidized bed 19 is connected with the feeding inlet of sculping screen II 22；
The sieve lower discharge port of sculping screen I 21 and sculping screen II 22 is connected with the feeding inlet of current divider 23, current divider 23
Discharge port respectively with circulatory mediator storehouse 24, shunt medium surge bunker 26 feeding inlet be connected, the discharge port in circulatory mediator storehouse 24 and
The feeding inlet of medium batcher I 25 is connected, and shunts the feeding inlet phase of the discharge port and medium batcher II 27 of medium surge bunker 26
Even, the discharge port of medium batcher II 27 is connected with the feeding inlet of magnetic separator 28, magnetic material discharge port and the magnetic essence of magnetic separator 28
The feeding inlet of ore storage bin 29 is connected, and the discharge port of magnetic concentrate store 29 is connected with the feeding inlet of medium batcher III 30, medium batcher I
25 and the discharge port of medium batcher III 30 be connected with the medium adding mouth of dry method dense medium fluidized bed 19.
The entrance of deduster I 13 is connected with the air outlet of drier 10, air outlet and I 14 phase of air-introduced machine of deduster I 13
Even.The entrance of the deduster II 31 respectively with photometric sorter 7, Duplex dry separator 16 and dry method dense medium fluidized bed
19 dust emission mouth is connected, and the outlet of deduster II 31 is connected with air-introduced machine II 32, the dust emission mouth of deduster II 31 and
The feeding inlet of current divider 23 is connected；Air blower 35 connects one end of flowmeter 33, the other end point of flowmeter 33 by bellows chamber 34
Not Lian Jie Duplex dry separator 16 and dry method dense medium fluidized bed 19 ventilation opening.
The course of work of present system is as follows:
The Coaseries kaolin raw ore that mine or bedding plant ship feeds the classifying screen I 1 that aperture is 200mm first, through preliminary
After screening, oversize is that+200mm raw ore is crushed to -200mm by crusher 3 after iron remover 2 disposes ferromagnetic sundries, with
Screenings is that the classifying screen II 4 that aperture is 100mm is fed after -200mm raw ore mixes, and after screening, screenings is -100mm former
It is alternative that mine is sent into surge bunker II 8.Dry mineral processing equipment requires pan feeding free moisture MfLower than 8%, so if raw ore outside water
It is point excessively high, uniformly fed by batcher II 9 in drier 10 and carry out being pre-dried processing to it, moisture be down to 8% or less it
It is sent into surge bunker III 11 afterwards, screening installation is fed by batcher III 12.If raw ore free moisture MfIt, can be direct lower than 8%
Enter follow-up separation process by batcher II 9.
The oversize of classifying screen II 4 is that+100mm raw ore is sent into surge bunker I 5, feeds photometric sorting by batcher I 6
Machine 7 is sorted, the kaolin concentrate product 1 and Kaolin Tailings product 1 that discharge granularity is 100~200mm；
Mf- 100mm raw ore lower than 8% feeds the classifying screen III 15 that aperture is 6mm, after screening, oversize i.e. 6~
It is alternative that 100mm raw ore is sent into surge bunker IV 17；Screenings i.e. -6mm raw ore is sent to Duplex dry separator 16 and is sorted,
Applied vibration and wind-force force material to make spiral flip-flop movement and loose, while in gravity (position can) lamination, autogenous medium
Sorting is completed under the comprehensive function of buoyancy effect and eduction, discharge light product and heavy product respectively become kaolin concentrate
Product 2 and product from failing 2；
6~100mm rough concentrate in surge bunker IV 17 uniformly feeds dry method dense medium fluidized bed by batcher IV 18
19.For fine-grained solids medium solid under the action of the ascending air after even distributing wind, being formed has gas-solid the two of quasi-fluid characteristic
Xiang Liu is selected in buoyancy of the material in gas-solid phase bed by fluidized-bed layer global density, thus close according to bed
Degree layering, the material less than bed density float and become light product (floating object), and the material sinking greater than bed density becomes and again produces
Object (hypostasis), the weight product after layering are discharged by discharge mechanism respectively, complete assorting room.In assorting room, pass through
The density and height of bed are sorted in 20 real-time monitoring dry method dense medium fluidized bed 19 of manometer, and are timely feedbacked and adjusted exacerbation
The operating parameter of matter decontamination cycle system, it is ensured that bed density and height meet sorting and require in sorting machine.Heavy product and light production
Object feeds the sculping screen I 21 and sculping screen II 22 that partition size is 2mm respectively, and removing sorted product is taken out of from sorting machine
Product from failing 3 and concentrate product 3 are obtained after medium and particulate miberal powder -2mm.Sculping screen screenings enters medium solid decontamination cycle system
Medium circulation and density domination process in system.
The process flow of medium solid decontamination cycle system are as follows: after the medium solid mixing that sculping screen I 21, sculping screen II 22 remove
It being shunted again by current divider 23, a part feeds circulatory mediator storehouse 24, in case dry method dense medium fluidized bed 19 uses, it is another
The medium solid of part sculping screen removing, which enters after shunting medium surge bunker 26, uniformly feeds magnetic separation by medium batcher II 27
Machine 28 obtains magnetic material concentrate (magnetite powder) after removing nonmagnetics therein (miberal powder, clay), feeds magnetic concentrate store
29, in case dry method dense medium fluidized bed 19 uses.
It is too long between when the system is operated, when dielectric loss is excessive, need to add magnetism of medium object into magnetic concentrate store to keep away
Exempt from bed density undue fluctuation in sorting machine.The feeding coal of circulatory mediator shunt volume, magnetic concentrate and circulatory mediator is according to manometer
The height and density of dry method dense medium fluidized bed 19 beds of 20 feedbacks are adjusted, and realize to fluidisation bed height and density
Control.
The dust and flue gas generated in drying operation is collected by deduster I 13 and air-introduced machine I 14.
Flowmeter 33, bellows chamber 34 and air blower 35 are that Duplex dry separator 16 and dry method dense medium fluidized bed 19 provide
Air force；The dust that separation system generates in Duplex dry separator 16,19 course of work of dry method dense medium fluidized bed
Be mostly derived from particulate miberal powder, collect and carry out Industrial Analysis to it by deduster II 31, air-introduced machine II 32 etc., if it is useful at
The more dense medium purifica tion cyclic part that can send back to is divided to recycle.
Claims (10)
1. a kind of coal measures intergrowth mineral produces resource wholegrain grade dry separation cleaning technology, which comprises the following steps:
(1) raw ore prepares and drying: the coal measures intergrowth mineral that mine or bedding plant ship produces resource raw ore and is by aperture first
The classifying screen of 200mm is classified, and oversize i.e.+200mm coal measures intergrowth mineral object raw ore is crushed to -200mm through crusher, with sieve
Under -200mm raw ore mixing after entrance aperture be 100mm classifying screen sieve；Oversize i.e. 100~200mm raw ore feeds light
Electric sorting machine is sorted, the concentrate product 1 and product from failing 1 that discharge granularity is 100~200mm；Screenings is -100mm former
Mine free moisture MfBe pre-dried processing higher than 8%, drier is discharged in moisture after being down to 8% or less, -100mm is former
Mine free moisture MfSubsequent step is directly entered lower than 8%；
(2) raw ore: M is sortedf- 100mm raw ore lower than 8% is classified by the classifying screen that aperture is 6mm, and oversize i.e. 100~
6mm material enters dry method dense media fluid-bed separator, obtains kaolin concentrate and tailing by density separation；It sorts floating object and sinks
Object becomes concentrate product 3 and product from failing 3 after distinguishing the sculping screen de-mediated that via hole diameter is 2mm, and the medium solid of removing enters exacerbation
Matter decontamination cycle system；The screenings of 6mm classifying screen is that the high raw ore of -6mm enters Duplex dry separator sorting, after sorting
Light product and heavy product respectively become concentrate product 2 and product from failing 2；
(3) dense medium purifica tion circulation is with density domination: being shunted again after the medium solid that sculping screen removes is mixed by current divider, one
Part is sent into after medium magnetic separator removes nonmagnetics therein and obtains magnetic material concentrate, and another part medium solid is sent into dry method weight
Medium fluid-bed separator is recycled, and realizes to dry method dense media fluid-bed separator internal fluidisation bed height and density
Control.
2. a kind of coal measures intergrowth mineral according to claim 1 produces resource wholegrain grade dry separation cleaning technology, feature
It is, provides air force to Duplex dry separator and dry method dense media fluid-bed separator by ventilation apparatus.
3. a kind of coal measures intergrowth mineral according to claim 1 produces resource wholegrain grade dry separation cleaning technology, feature
It is, photometric sorter, Duplex dry separator and dry method dense media fluid-bed separator is collected by cleaner and generated
Dust, then by useful component send back to system circulation utilize.
4. a kind of described in any item coal measures intergrowth minerals of implementation claims 1 to 33 produce resource wholegrain grade dry separation cleaning work
The system of skill, which is characterized in that prepare and drying nest, sorting section and dense medium purifica tion cyclic part including raw ore；
The raw ore prepares to include classifying screen I (1), iron remover (2), crusher (3), classifying screen II (4), buffering with drying nest
Storehouse II (8), batcher II (9), drier (10), surge bunker III (11) and batcher III (12)；
The sorting section includes that surge bunker I (5), batcher I (6), photometric sorter (7), classifying screen III (15), combined type are dry
Method sorting machine (16), surge bunker IV (17), batcher IV (18) and dry method dense medium fluidized bed (19)；
The dense medium purifica tion cyclic part includes sculping screen I (21), sculping screen II (22), current divider (23), circulatory mediator storehouse
(24), medium batcher I (25), shunting medium surge bunker (26), medium batcher II (27), magnetic separator (28), magnetic concentrate store
(29) and medium batcher III (30)；
The sieve top discharge mouth of the classifying screen I (1) is connected with the feeding inlet of crusher (3), and iron remover (2) is arranged in classifying screen I
(1) between the feeding inlet of sieve top discharge mouth and crusher (3), the sieve lower discharge port and crusher (3) of classifying screen I (1) go out
Material mouth is connected with the feeding inlet of classifying screen II (4), the sieve lower discharge port of classifying screen II (4) and the feeding inlet of surge bunker II (8)
Be connected, the discharge port of surge bunker II (8) is connected with the feeding inlet of batcher II (9), the discharge port of batcher II (9) respectively with do
Dry device (10) is connected with the feeding inlet of classifying screen III (15), the feeding inlet phase of the discharge port and surge bunker III (11) of drier (10)
Even, the discharge port of surge bunker III (11) is connected with the feeding inlet of batcher III (12), the discharging of batcher III (12) and classifying screen
The feeding inlet of III (15) is connected；
The sieve top discharge mouth of classifying screen II (4) is connected with the feeding inlet of surge bunker I (5), the discharge port and feed of surge bunker I (5)
The feeding inlet of machine I (6) is connected, and the discharge port of batcher I (6) is connected with the feeding inlet of photometric sorter (7)；Classifying screen III (15)
Sieve top discharge mouth be connected with the feeding inlet of surge bunker IV (17), the discharge port of surge bunker IV (17) and entering for batcher IV (18)
Material mouth is connected, and the discharge port of batcher IV (18) is connected with the feeding inlet of dry method dense medium fluidized bed (19), classifying screen III (15)
Sieve lower discharge port be connected with the feeding inlet of Duplex dry separator (16), the light product of dry method dense medium fluidized bed (19) goes out
Mouth is connected with the feeding inlet of sculping screen I (21), heavy product outlet and the sculping screen II (22) of dry method dense medium fluidized bed (19)
Feeding inlet is connected；
The sieve lower discharge port of sculping screen I (21) and sculping screen II (22) is connected with the feeding inlet of current divider (23), current divider
(23) discharge port is connected with the feeding inlet of circulatory mediator storehouse (24), shunting medium surge bunker (26) respectively, circulatory mediator storehouse
(24) discharge port is connected with the feeding inlet of medium batcher I (25), and the discharge port for shunting medium surge bunker (26) is given with medium
The feeding inlet of material machine II (27) is connected, and the discharge port of medium batcher II (27) is connected with the feeding inlet of magnetic separator (28), magnetic separation
The magnetic material discharge port of machine (28) is connected with the feeding inlet of magnetic concentrate store (29), and the discharge port and medium of magnetic concentrate store (29) are fed
The feeding inlet of machine III (30) is connected, the discharge port of medium batcher I (25) and medium batcher III (30) with dry method dense media
The medium adding mouth of fluidized bed (19) is connected.
5. coal measures intergrowth mineral according to claim 4 produces resource wholegrain grade dry separation clean system, which is characterized in that
Further include air feed dust removal part, the air feed dust removal part include deduster II (31), air-introduced machine II (32), flowmeter (33),
Bellows chamber (34) and air blower (35)；
The entrance of the deduster II (31) respectively with photometric sorter (7), Duplex dry separator (16) and dry method dense medium
The dust emission mouth of fluidized bed (19) is connected, and the outlet of deduster II (31) is connected with air-introduced machine II (32), deduster II
(31) dust emission mouth is connected with the feeding inlet of current divider (23)；Air blower (35) passes through bellows chamber (34) connection flowmeter (33)
One end, the other end of flowmeter (33) is separately connected Duplex dry separator (16) and dry method dense medium fluidized bed (19)
Ventilation opening.
6. coal measures intergrowth mineral according to claim 5 produces resource wholegrain grade dry separation clean system, which is characterized in that
The air feed dust removal part further includes deduster I (13), air-introduced machine I (14), entrance and drier (10) of deduster I (13)
Air outlet is connected, and the air outlet of deduster I (13) is connected with air-introduced machine I (14).
7. coal measures intergrowth mineral according to claim 4 produces resource wholegrain grade dry separation clean system, which is characterized in that
The screen-aperture of the classifying screen I (1) is 200mm, and the screen-aperture of the classifying screen II (4) is 100mm, the classifying screen III
(15) screen-aperture is 6mm, and the screen-aperture of the sculping screen I (21) and sculping screen II (22) is 2mm.
8. coal measures intergrowth mineral according to claim 4 produces resource wholegrain grade dry separation clean system, which is characterized in that
Manometer (20) are equipped with inside the dry method dense medium fluidized bed (19).
9. coal measures intergrowth mineral according to claim 4 produces resource wholegrain grade dry separation clean system, which is characterized in that
The photometric sorter (7) is X-ray sorting machine or image sorting machine.
10. coal measures intergrowth mineral according to claim 4 produces resource wholegrain grade dry separation clean system, feature exists
In the drier (10) is vibrating mixed flow dryer.
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| CN113020210B (en) * | 2021-03-06 | 2023-09-26 | 昆明冶金高等专科学校 | Mineral processing and resource comprehensive utilization process for ferromanganese ore rays |
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Inventor after: Dong Liang Inventor after: Zhao Yuemin Inventor after: Zhou Enhui Inventor after: Jiang Haishen Inventor after: Zhang Gansu Inventor after: Zhang Bo Inventor after: Duan Chenlong Inventor before: Zhao Yuemin Inventor before: Zhou Enhui Inventor before: Dong Liang Inventor before: Jiang Haishen Inventor before: Zhang Gansu Inventor before: Zhang Bo Inventor before: Duan Chenlong |
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Application publication date: 20190215 |