CN109622213A - Using the heavymedia separation technique of the separation fluorite and barite of shallow-tank separator - Google Patents
Using the heavymedia separation technique of the separation fluorite and barite of shallow-tank separator Download PDFInfo
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- CN109622213A CN109622213A CN201910100120.1A CN201910100120A CN109622213A CN 109622213 A CN109622213 A CN 109622213A CN 201910100120 A CN201910100120 A CN 201910100120A CN 109622213 A CN109622213 A CN 109622213A
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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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Abstract
The invention discloses a kind of heavymedia separation techniques of separation fluorite and barite using shallow-tank separator, including the crushing raw ore being successively directly connected to, cache storing, rinse desliming, ore pulp recycling, fluorite separates sorting with barite, dense media is prepared and recycling, water circulation system, each process operation system is controlled by control system, the control system includes material metering control, flow control, pressure control, density of heavy medium control, the technique overall process is completed by automatic control system, using a key equipment-shallow-tank separator, medium circulation system is combined using dense pipe concentration media technology with magnetic separator purification media technology, ensure that density of heavy medium is high and stablizes in system.The present invention solves fluorite and barite class sorting mineral problem, can effectively improve the development and utilization of fluorite and barite class mineral.
Description
Technical field
The present invention relates to mineral manufacture fields, more particularly, to a kind of separation fluorite and barite using shallow-tank separator
Heavymedia separation technique.
Background technique
Fluorite (CaF2) one of fluorine mineral resources are important, main component is calcirm-fluoride (CaF2), density: 3.18g/
cm3, it is to prepare one of basic material of hydrogen fluoride.Barite (BaSO4), it is important one of baryta mineral resource, density: 4.3g/
cm3, it is mainly used for the heavy weight additive of petroleum drilling.
Fluorite and barite or barite fluorite class mineral resources are mainly distributed on the ground such as Sichuan, Guizhou, Hubei.At present
The sorting of fluorite and barite class associated minerals mostly uses floatation process to be separated, purified, and fluorite and Barite flotation property phase
Nearly place is more, either direct flotation or reverse flotation, due to the interference of pharmacy effect, to its respectively the final quality of product and
All there is extreme influence in the rate of recovery, FLOTATION SEPARATION, purification difficulty are big.Although mine enterprise in part is before flotation operation using gravity treatment to original
Mine carries out Pre-sorting, but because of the confinement problems of the gravity separation technology of use (such as jigging sorting), production efficiency is more low, returns
Yield is relatively low, sorting particle size range needs strict control, sharpness of separation relatively low.
Summary of the invention
The present invention is to overcome the sorting of existing fluorite and barite class associated minerals, purification difficulty high, and production efficiency is low, mine
Object resource recovery is relatively low, sorting particle size range requirement is stringent, sharpness of separation is low, provides a kind of suitable for fluorite and barite class mine
Ore dressing, environmentally friendly, efficient, low cost, feed particle size range is big, and the rate of recovery, sharpness of separation and sorting stability are high, sufficiently
It using fluorite and the difference of specific gravity of barite mineral, is strictly sorted by ore specific gravity, reduces ore grain size to sorting
The heavymedia separation technique of the separation fluorite and barite using shallow-tank separator of interference.
To achieve the goals above, the invention adopts the following technical scheme: using shallow-tank separator separation fluorite with again
The heavymedia separation technique of spar, including the crushing raw ore, caching storing, flushing desliming, ore pulp recycling, firefly being successively directly connected to
Stone separates sorting with barite, dense media is prepared and is controlled by control with recycling, water circulation system, each process operation system
System, the control system include material metering control, flow control, pressure control, density of heavy medium control, the work
Skill overall process is completed by automatic control system；Specific step is as follows, 1) fluorite and barite raw ore is transported to crusher system
In carry out broken classification, obtain the raw ore of grade of the granularity less than 100 millimeters or determined according to the embedding cloth property of raw ore suitable broken
The raw ore being crushed is fed in surge bunker and stored by particle degree, 2) fluorite-barite heavy mineral being stored in surge bunker is percutaneous
Conveyer, which is fed, carries out washup, classification in desliming screen, desliming screen is provided with water by fresh water pump, and granularity is greater than 0.5 millimeter after flushing
Sieve on product feed shallow-tank separator, product slurry of the undersize degree less than 0.5 millimeter enters ore pulp recovery system；3) desliming
Sieve, which sieves while upper product feeds shallow-tank separator, injects the dense media prepared in sorting machine, and fluorite-barite heavy mineral exists
It is acted in shallow-tank separator with dense media upper up-flow and level stream, weight product is separated, and fluorite floats on Jie as light mineral
Matter surface is discharged with level stream from light mineral gape, and barite is that heavy mineral is sunken to sorting motor spindle, by scraping for chain-driving
Plate is scraped along sorting motor spindle, and dense media described in sorting machine is supplied by the dense media circulatory system；4) pass through the weight after sorting
Product -- barite is taken out of by scraper plate be discharged into the first sculping screen de-mediated from heavy product gape after obtain barite material；Gently
Product -- fluorite obtains fluorite material after entering the second sculping screen de-mediated after the discharge of light product gape；First sculping screen,
Two sculping screen flushing waters are provided by fresh water pump；5) the first sculping screen, the second sculping screen dense media be separately recovered into close Jie's bucket
With dilute Jie's bucket, wherein the dense media for closing Jie's bucket enters the reuse of the dense media circulatory system；Into dilute Jie's bucket dense media by pumping
It feeds magnetic separator and carries out purification, and obtain water respectively and close and be situated between, wherein water enters water circulation system, the weight of purification
Medium returns to conjunction Jie's bucket and enters the reuse of the dense media circulatory system.The shallow-tank separator that this programme uses is also referred to as fluorite lump ore grain
Sub- mine gravity treatment sorting machine, the fluorite lump ore particle mine gravity treatment sorting machine are disclosed by Chinese publication, and license is public
Announcement number is CN 206444722U, is the important composition mechanism of this programme.
Preferably, the density of heavy medium in the step 3) is 3.0-3.3 grams/cc.
Preferably, the crusher system of the crushing raw ore technique includes breaking along what raw ore processing flow direction was set gradually
Broken machine, raw ore vibrating screen, belt conveyor, form closed cycle between the raw ore vibrating screen and crusher.
Preferably, the caching aggregate-storing system of the caching storing technique includes surge bunker, belt conveyor, it is described
Surge bunker is connected to belt conveyor, and the belt conveyor is connected to desliming screen.
Preferably, the flushing screening system of the flushing sieving technology includes desliming screen, slush pump pond, clear water slurry
Pump, the desliming screen are connected to belt conveyor, slush pump pond, fresh water pump, modified shallow-tank separator respectively, the slush pump
Pond is connected to desliming screen, slush pump, dewatering screen respectively, and the clear water stock pump is connected to desliming screen, circulating water pool respectively.
Preferably, the ore pulp recovery system of the ore pulp recovery process includes slush pump pond, slush pump, concentration eddy flow
Device, dewatering screen, concentrator, the slush pump are connected to slush pump pond, concentrate cyclone respectively, the concentrate cyclone point
It is not connected to slush pump, dewatering screen, concentrator, the dewatering screen is connected to slush pump pond, concentrate cyclone respectively, described dense
Close machine is connected to concentrate cyclone, circulating water pool respectively.The ore pulp generated in step 2) enters slush pump pond；The slush pump
Ore pulp is pumped into concentrate cyclone from slush pump pond, ore pulp is separated into cyclone underflow ore pulp after concentrate cyclone is handled
And overflow water, overflow water are separated into thickener underflow ore pulp and recirculated water, cyclone underflow ore pulp after entering concentrator reprocessing
Feed dewatering screen, dewatering screen sieves lower ore pulp and returns to circular treatment in slush pump pond, dewatering screen sieve upper collection of products as fluorite or
Barite flotation raw materials technology, thickener underflow ore pulp (are thrown according to test result as floatation process raw material or as tailing
Abandon), recirculated water enters circulating water pool and uses again.
Preferably, it includes the first sculping screen, that the dense media, which is prepared with the dense media circulatory system of recovery process,
Two sculping screens, dense pipe, close Jie's bucket, dilute Jie's bucket, close the pump that is situated between, dilute Jie pump and Medium concentration pump magnetic separator, and described first, second
De- screening is not connected to modified shallow-tank separator, conjunction Jie's bucket, dilute Jie's bucket, fresh water pump, and the magnetic separator is pumped with dilute Jie respectively, closed
Jie's bucket, circulating water pool connection, the dense pipe are connected to conjunction Jie's bucket, dilute Jie's bucket, Medium concentration pump respectively, conjunction Jie's bucket point
With the first, second sculping screen, magnetic separator, dense pipe, close be situated between pump, Medium concentration pump be connected to, dilute Jie's bucket respectively with dilute Jie
Pump, the connection of dense pipe, the first sculping screen, the second sculping screen.The conjunction is situated between to pump and connect respectively with conjunction Jie's bucket, modified shallow-tank separator
Logical, dilute Jie's pump is connected to dilute Jie's bucket, magnetic separator respectively, and the Medium concentration pump is connected to conjunction Jie's bucket, dense pipe respectively.This
The scheme dense media circulatory system is combined using dense pipe concentration purification media technology with magnetic separator purification media technology, really
Dense media high density and stabilization in insurance system.
Preferably, the water circulation system of the water circulation craft includes circulating water pool, fresh water pump, the recirculated water
Pond is connected to concentrator, magnetic separator, fresh water pump respectively, the fresh water pump respectively with circulating water pool, desliming screen, the first de-mediated
Sieve, the connection of the second sculping screen.
This programme adopts new technology and fluorite and barite is carried out Gravity separation, fluorite object obtained after separation in advance
Material, barite material can reapply other processes and purify respectively to it；Since medicament is not added in gravity treatment, eliminate because
Medicament interferes the influence generated to subsequent technique, purifies fluorite, barite respectively according to respective characteristic, thus
Sorting difficulty is reduced, can get more excellent product quality, while improving respective product recovery rate；This programme is according to gravity preparation
Based on mine separation Theory, using a key equipment: modified shallow-tank separator, it is using automatic control system that belt is defeated
Send the auxiliary equipment such as machine, pump equipment by ore, dense media, water the Rational flow in process flow, finally by fluorite and barite
Separation obtains fluorite material and barite material；Since fluorite and barite have biggish difference in specific gravity, by density of heavy medium tune
Be fitted on 3.0--3.3 grams/cc, and control the horizontal flow velocity of dense media and upflow velocity can to fluorite and barite into
Row efficiently separates；To stablize density of heavy medium at 3.0--3.3 grams/cc, medium circulation system is concentrated using dense pipe
Media technology is combined with magnetic separator purification process, it is ensured that density of heavy medium is high in system and stablizes；Due to this technique
Scheme strictly sorts mineral by specific gravity, reduces effect and interference of the ore grain size to sorting, while increasing selected
Particle size range is big, and sharpness of separation, sorting stability, the efficiency of separation are improved；This programme environmental protection, efficient, low cost, are improved
The utilization of resource and the economic benefit of enterprise.
Therefore, after being pre-separated the invention has the following beneficial effects: (1) fluorite and barite, fluorite, barite can be with
It is purified respectively by respective characteristic using other techniques, it is ensured that obtain excellent product quality and higher Product recycling
Rate；(2) heavy medium sorting process is more environmentally-friendly, efficient, inexpensive, can get bigger economic benefit；(3) resource is improved
Utilization rate.
Detailed description of the invention
Fig. 1 is process structure schematic diagram of the invention.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing.
As shown in Figure 1, the heavymedia separation technique of separation fluorite and barite using shallow-tank separator, including it is successively straight
The crushing raw ore that connects in succession, caching storing, rinse desliming, ore pulp recycling, fluorite separate sorting with barite, dense media prepare with
Recycling, water circulation system, each process operation system are controlled by control system, and control system includes material metering control, flow
Control, pressure control, density of heavy medium control, technique overall process are completed by automatic control system；
The crusher system of crushing raw ore technique includes the jaw crusher set gradually along raw ore processing flow direction, raw ore vibration
Dynamic sieve, a plurality of belt conveyor, wherein jaw crusher, belt conveyor, vibrating screen, belt conveyor, which are formed, is crushed closed circuit follow
Ring.
The caching aggregate-storing system for caching storing technique includes surge bunker, a plurality of belt conveyor, surge bunker and Belt Conveying
Machine is respectively communicated with, and belt conveyor is connected to modified shallow-tank separator.
The flushing screening system for rinsing sieving technology includes desliming screen, slush pump pond, fresh water pump, desliming screen respectively with mud
Pump pond, fresh water pump connection, slush pump pond is connected to slush pump, dewatering screen, desliming screen respectively, fresh water pump respectively with circulating water pool,
Desliming screen connection.
The ore pulp recovery system of ore pulp recovery process includes slush pump pond, slush pump, concentrate cyclone, dewatering screen, dense
Machine；Slush pump is connected to slush pump pond, concentrate cyclone respectively, concentrate cyclone respectively with dewatering screen, concentrator, slush pump pond
Connection；Dewatering screen is connected to slush pump pond, concentrate cyclone respectively, and concentrator is connected to concentrate cyclone, circulating water pool respectively；
Dense media prepare with the dense media circulatory system of recovery process include the first sculping screen, the second sculping screen, magnetic separator,
Dense pipe, dilute Jie's bucket, Medium concentration pump, closes Jie's bucket and closes the pump that is situated between dilute Jie pump；First, second sculping screen is shallow with modified respectively
Slot sorting machine closes Jie's bucket, dilute Jie's bucket, conjunction Jie's pump connection, and magnetic separator is connected to dilute Jie pump, conjunction Jie's bucket, circulating water pool respectively, dense
Pipe is connected to conjunction Jie's bucket, dilute Jie's bucket, Medium concentration pump respectively, and dilute Jie's pump is connected to dilute Jie's bucket, magnetic separator respectively, dilute Jie's bucket difference
It being connected to dilute Jie pump, dense pipe, the first sculping screen, the second sculping screen, Medium concentration pump is connected to conjunction Jie's bucket, dense pipe respectively,
Close Jie's bucket respectively with the first, second sculping screen, magnetic separator, dense pipe, close be situated between pump, Medium concentration pump be connected to, close be situated between pump respectively with
Close Jie's bucket, the connection of modified shallow-tank separator.
The water circulation system of water circulation craft includes circulating water pool, fresh water pump, circulating water pool respectively with concentrator, magnetic separation
Machine, fresh water pump connection；Fresh water pump is connected to circulating water pool, desliming screen, the first sculping screen, the second sculping screen respectively.
Specific implementation process is, including specific step is as follows, 1) fluorite and barite raw ore is discharged from crude ore bin, defeated through belt
It send machine to be transported in jaw crusher to be crushed, broken rear product is sent by belt conveyor to be classified into vibrating screen, is obtained
It obtains the raw ore of grade of the granularity less than 100 millimeters or determines suitable particle size after cracking, the sieve of vibrating screen according to the embedding cloth property of raw ore
Upper product is returned in jaw crusher by belt conveyor and is crushed again, jaw crusher belt conveyor vibrating screen belt
Conveyer forms broken closed cycle, and the undersized product of vibrating screen is sent into surge bunker by belt conveyor；2) original that will be crushed
Mine is discharged from surge bunker by entering to carry out washup, classification in desliming screen to belt conveyor, and desliming water sieve is provided with water by fresh water pump,
Granularity feeds in modified shallow-tank separator greater than product on 0.5 millimeter of sieve and is sorted after flushing, and undersize degree is less than 0.5
The ore pulp of millimeter enters ore pulp recovery system；3) it will prepare while product feeds modified shallow-tank separator in desizing screen
Dense media by close be situated between is pumped into modified shallow-tank separator, fluorite-barite heavy mineral in modified shallow-tank separator and
After dense media upper up-flow and level stream interaction, weight product is separated, and fluorite floats on dielectric surface as light product, with
Level stream is discharged from light product gape, and barite is that heavy product is sunken to sorting motor spindle, by the scraper plate of chain-driving along sorting
Motor spindle scrapes, and the dense media in sorting machine is supplied by the dense media circulatory system；4) pass through heavy product -- the barite after sorting
It is taken out of by scraper plate after being discharged into the first sculping screen de-mediated from heavy product gape and obtains barite material；Light product -- fluorite from
Fluorite material is obtained after entering the second sculping screen de-mediated after the discharge of light mineral gape；Used in first sculping screen, the second sculping screen
Flushing water is provided by fresh water pump；5) the first sculping screen, the second sculping screen dense media be separately recovered into closing Jie's bucket and dilute Jie's bucket,
Wherein, the dense media for closing Jie's bucket enters the reuse of the dense media circulatory system；Dense media into dilute Jie's bucket is fed by dilute Jie pump
Magnetic separator carries out purification, and obtains water respectively and close and be situated between, wherein water enters water circulation system, the dense media of purification
It returns to conjunction Jie's bucket and enters the reuse of the dense media circulatory system；
Density of heavy medium in step 3) is 3.0-3.3 grams/cc；
The ore pulp generated in step 2) enters slush pump pond；Ore pulp is pumped into concentrate cyclone from slush pump pond by slush pump
In, ore pulp is separated into cyclone underflow ore pulp and overflow water after concentrate cyclone is handled, and overflow water enters concentrator and locates again
Thickener underflow ore pulp and recirculated water are separated into after reason, cyclone underflow ore pulp feeds dewatering screen, and dewatering screen sieves lower ore pulp and returns to
Circular treatment in slush pump pond, dewatering screen sieve upper collection of products as fluorite or Barite flotation raw materials technology, thickener underflow
Ore pulp (is abandoned according to test result as floatation process raw material or as tailing), and recirculated water enters circulating water pool recycling.
Claims (8)
1. a kind of heavymedia separation technique of separation fluorite and barite using shallow-tank separator, including what is be successively directly connected to
Crushing raw ore, caching storing, flushing desliming, ore pulp recycling, fluorite separates sorting with barite, dense media is prepared and recycling, water
The circulatory system, each process operation system are controlled by control system, and the control system includes material metering control, stream
Amount control, pressure control, density of heavy medium control, the technique overall process are completed by automatic control system, and feature exists
In: specific step is as follows, 1) fluorite and barite raw ore is transported in crusher system and carries out broken classification, granularity is obtained and is less than
The raw ore of 100 millimeters of grade determines suitable particle size after cracking according to the embedding cloth property of raw ore, the raw ore being crushed is fed slow
Rush in storehouse and store, 2) fluorite-percutaneous conveyer of barite heavy mineral for being stored in surge bunker feed carried out in desliming screen washup,
Classification, desliming screen are provided with water by fresh water pump, and product feeds shallow-tank separator on sieve of the granularity greater than 0.5 millimeter after flushing, are sieved
Lower product slurry of the granularity less than 0.5 millimeter enters ore pulp recovery system；3) product feeds shallow-tank separator in desizing screen
The dense media prepared is injected in shallow-tank separator simultaneously, fluorite-barite heavy mineral is in shallow-tank separator and on dense media
Up-flow and level stream effect, weight product separated, and fluorite floats on dielectric surface as light mineral, with level stream from light mineral
Gape discharge, barite is that heavy mineral is sunken to shallow-tank separator bottom, by the scraper plate of chain-driving along shallow-tank separator bottom
It scrapes, dense media is supplied by the dense media circulatory system；4) passing through the heavy product after sorting -- barite is taken out of by scraper plate from producing again
Object gape obtains barite material after being discharged into the first sculping screen de-mediated；Light product -- fluorite is discharged from light product gape
Fluorite material is obtained after entering the second sculping screen de-mediated afterwards；First sculping screen, the second sculping screen flushing water are provided by fresh water pump；5)
First sculping screen, the second sculping screen dense media be separately recovered into closing Jie's bucket and dilute Jie's bucket, wherein close the dense media of Jie's bucket into
Enter the reuse of the dense media circulatory system；Dense media into dilute Jie's bucket feeds magnetic separator progress purification by pumping, and respectively
It obtains water and closes and be situated between, wherein water enters water circulation system, and the dense media return of purification closes Jie's bucket and enters dense media cyclic system
System is reused.
2. the heavymedia separation technique of the separation fluorite and barite according to claim 1 using shallow-tank separator,
It is characterized in, the density of heavy medium in the step 3) is 3.0-3.3 grams/cc.
3. the heavymedia separation technique of the separation fluorite and barite according to claim 1 using shallow-tank separator,
It is characterized in, the crusher system of the crushing raw ore technique includes crusher, the raw ore set gradually along raw ore processing flow direction
Vibrating screen, belt conveyor form closed cycle between the raw ore vibrating screen and crusher.
4. the heavymedia separation technique of the separation fluorite and barite according to claim 1 using shallow-tank separator,
It is characterized in, the caching aggregate-storing system of the caching storing technique includes surge bunker, belt conveyor, the surge bunker and skin
Band conveyer is connected to, and the belt conveyor is connected to desliming screen.
5. the heavymedia separation technique of the separation fluorite and barite according to claim 1 using shallow-tank separator,
It is characterized in, the flushing screening system of the flushing sieving technology includes desliming screen, slush pump pond, clear water stock pump, the desliming
Screening be connected to belt conveyor, slush pump pond, fresh water pump, modified shallow-tank separator, the slush pump pond respectively with take off
Mud sieve, slush pump, dewatering screen connection, the clear water stock pump are connected to desliming screen, circulating water pool respectively.
6. the heavymedia separation technique of the separation fluorite and barite according to claim 1 using shallow-tank separator,
Be characterized in, the ore pulp recovery system of the ore pulp recovery process include slush pump pond, slush pump, concentrate cyclone, dewatering screen,
Concentrator, the slush pump are connected to slush pump pond, concentrate cyclone respectively, the concentrate cyclone respectively with mud
Pump, dewatering screen, concentrator connection, the dewatering screen are connected to slush pump pond, concentrate cyclone respectively, the concentrator difference
It is connected to concentrate cyclone, circulating water pool.
7. the heavymedia separation technique of the separation fluorite and barite according to claim 1 using shallow-tank separator,
It is characterized in, it includes the first sculping screen, the second sculping screen, magnetic that the dense media, which is prepared with the dense media circulatory system of recovery process,
Select machine, dense pipe, close Jie's bucket, dilute Jie's bucket, close the pump that is situated between, dilute Jies pump and Medium concentration pump, described first, second it is de- sieve not with change
Into type shallow-tank separator, Jie's bucket, dilute Jie's bucket, fresh water pump connection are closed, the magnetic separator pumps with dilute Jie respectively, closes Jie's bucket, recirculated water
Pond connection, the dense pipe respectively with close Jie's bucket, dilute Jie's bucket, Medium concentration pump and be connected to, conjunction Jie bucket respectively with first, the
Two sculping screens, dense pipe, close the pump that is situated between, Medium concentration pump connection at magnetic separator, dilute Jie's bucket respectively with dilute Jie pump, dense pipe, the
One sculping screen, the connection of the second sculping screen.The conjunction is situated between to pump to be connected to conjunction Jie's bucket, modified shallow-tank separator respectively, dilute Jie
Pump is connected to dilute Jie's bucket, magnetic separator respectively, and the Medium concentration pump is connected to conjunction Jie's bucket, dense pipe respectively.
8. the heavymedia separation technique of the separation fluorite and barite according to claim 1 using shallow-tank separator,
Be characterized in, the water circulation system of the water circulation craft includes circulating water pool, fresh water pump, the circulating water pool respectively with it is dense
Close machine, magnetic separator, fresh water pump connection, the fresh water pump respectively with circulating water pool, desliming screen, the first sculping screen, the second de-mediated
Sieve connection.
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Cited By (7)
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| CN110385197A (en) * | 2019-08-02 | 2019-10-29 | 浙江紫晶矿业有限公司 | A kind of the gravity separation system and technique of barite fluorite associated minerals |
| CN110575904A (en) * | 2019-09-23 | 2019-12-17 | 昆明理工大学 | Spodumene grading-grade dual medium-flotation beneficiation method |
| CN111250257A (en) * | 2020-03-03 | 2020-06-09 | 浙江兰溪市金昌矿业有限公司 | Separation system and process for fluorite ore containing barite |
| CN112676028A (en) * | 2020-11-12 | 2021-04-20 | 中冶长天国际工程有限责任公司 | Mineral separation process for separating manganese ore lump ore by using dense medium shallow grooves |
| CN112958272A (en) * | 2021-02-25 | 2021-06-15 | 广东省科学院资源综合利用研究所 | Method for separating dolomite from dolomite-barite lead-zinc ore |
| CN113210122A (en) * | 2021-04-27 | 2021-08-06 | 国能包头能源有限责任公司 | Heavy-medium shallow slot sorting machine and sorting method using same |
| CN113333148A (en) * | 2021-05-13 | 2021-09-03 | 西北矿冶研究院 | Separation method for pre-enriching aggregate stubborn antimony ore |
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