CN109331987A - A clean process and system for full-grain dry separation of coal-measure co-associated mineral resources - Google Patents

A clean process and system for full-grain dry separation of coal-measure co-associated mineral resources Download PDF

Info

Publication number
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
Authority
CN
China
Prior art keywords
medium
screen
dry
separator
feeder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811085371.9A
Other languages
Chinese (zh)
Inventor
赵跃民
周恩会
董良
江海深
张赣苏
张博
段晨龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China University of Mining and Technology CUMT
Original Assignee
China University of Mining and Technology CUMT
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China University of Mining and Technology CUMT filed Critical China University of Mining and Technology CUMT
Priority to CN201811085371.9A priority Critical patent/CN109331987A/en
Publication of CN109331987A publication Critical patent/CN109331987A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Geology (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Combined Means For Separation Of Solids (AREA)

Abstract

本发明公开了一种煤系共伴生矿产资源全粒级干法分选洁净工艺及系统，该工艺将待选原矿经破碎、筛分后筛上物进入光电分选机排除尾矿，筛下物干燥后进一步筛分得到两个粒级产品，分别进入复合式干法分选机与干法重介质流化床分选机分选得到精矿与尾矿；产品带出的加重质经脱介筛脱除后一部分进入磁选机去除非磁性物后得到磁性物精矿回流进入分选机，另一部分加重质直接循环使用；该系统包括原矿准备与干燥部分、分选部分、介质净化循环与密度控制部分。本发明可实现粗、中、细不同粒度的煤系共伴生矿物的同时高效分选，解决目前干法选矿领域选别产品少、精矿质量差、介质利用率低、粉尘无度排放等问题。

The invention discloses a clean process and system for full-grain dry separation of coal-measure co-associated mineral resources. In the process, the raw ore to be selected is crushed and sieved, and then the sieved material enters a photoelectric separator to remove tailings, and the sieve is sieved. After the material is dried, it is further screened to obtain two grades of products, which are respectively entered into the composite dry separator and the dry heavy medium fluidized bed separator to obtain concentrate and tailings; After the medium screen is removed, a part enters the magnetic separator to remove the non-magnetic substances, and the magnetic concentrate is returned to the separator, and the other part is directly recycled for the heavy weight; the system includes the raw ore preparation and drying part, the sorting part, and the medium purification cycle. with the density control section. The present invention can realize high-efficiency separation of coal-measure co-associated minerals with different particle sizes of coarse, medium and fine at the same time, and solve the problems of few separation products, poor concentrate quality, low medium utilization rate, indiscriminate dust emission and the like in the current dry beneficiation field.

Description

A kind of coal measures intergrowth mineral produces resource wholegrain grade dry separation cleaning technology and system
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)

1.一种煤系共伴生矿产资源全粒级干法分选洁净工艺，其特征在于，包括以下步骤：1. a coal measure co-associated mineral resource full-grain dry separation clean technology, is characterized in that, comprises the following steps: (1)原矿准备与干燥：矿井或储料场运来的煤系共伴生矿产资源原矿首先通过孔径为200mm的分级筛分级，筛上物即+200mm煤系共伴生矿物原矿经破碎机破碎至-200mm，与筛下-200mm原矿混合后进入孔径为100mm的分级筛筛分；筛上物即100～200mm原矿给入到光电分选机进行分选，排出粒度为100～200mm的精矿产品1和尾矿产品1；筛下物即-100mm原矿外在水分Mf高于8％的进行预先干燥处理，水分降至8％以下之后排出干燥器，-100mm原矿外在水分Mf低于8％的直接进入后续步骤；(1) Preparation and drying of raw ore: The raw ore of coal-measure co-associated mineral resources transported from the mine or stock yard is first classified by a grading screen with an aperture of 200mm, and the oversize is +200mm. Coal-measure co-associated mineral raw ore is crushed by a crusher to -200mm, mixed with -200mm raw ore under the sieve and then entered into a grading screen with an aperture of 100mm for screening; the 100-200mm raw ore on the screen is fed to the photoelectric separator for sorting, and the concentrate product with a particle size of 100-200mm is discharged 1 and tailings product 1; the under-sieve material, that is, the external moisture M f of the -100mm raw ore is pre-dried, and the moisture is reduced to less than 8% and then discharged from the dryer, and the external moisture M f of the -100mm raw ore is lower than 8% go directly to the next step; (2)分选原矿：Mf低于8％的-100mm原矿通过孔径为6mm的分级筛分级，筛上物即100～6mm物料进入干法重介质流化床分选机，按密度分选得到高岭土精矿与尾矿；分选浮物与沉物分别经孔径为2mm的脱介筛脱介后成为精矿产品3和尾矿产品3，脱除的加重质进入加重质净化循环系统；6mm分级筛的筛下物即-6mm高原矿进入复合式干法分选机分选，分选后的轻产物与重产物分别成为精矿产品2和尾矿产品2；(2) Sorting raw ore: The -100mm raw ore with M f less than 8% is classified by a grading screen with an aperture of 6mm, and the 100-6mm material on the screen enters the dry heavy medium fluidized bed sorter, and is sorted according to density. The kaolin concentrate and tailings are obtained; the flotation and sediment are separated into concentrate product 3 and tailings product 3 after being deintermediated by a de-intermediation screen with an aperture of 2 mm respectively, and the removed weighted matter enters the weighted weight purification circulation system; The undersize of the 6mm grading screen, that is, the -6mm plateau ore, enters the composite dry separator for sorting, and the sorted light products and heavy products become concentrate product 2 and tailing product 2 respectively; (3)介质净化循环与密度控制：将脱介筛脱除的加重质混合后通过分流器重新分流，一部分送入介质磁选机去除其中的非磁性物后得到磁性物精矿，另一部分加重质送入干法重介质流化床分选机循环使用，实现对干法重介质流化床分选机内部流化床层高度和密度的控制。(3) Medium purification cycle and density control: After mixing the heavy substances removed by the de-intermediate screen, they are re-divided through the diverter, and a part is sent to the medium magnetic separator to remove the non-magnetic substances in it to obtain magnetic concentrates, and the other part is heavy The mass is fed into the dry heavy medium fluidized bed separator for recycling to realize the control of the height and density of the fluidized bed inside the dry heavy medium fluidized bed separator. 2.根据权利要求1所述的一种煤系共伴生矿产资源全粒级干法分选洁净工艺，其特征在于，通过供风设备对复合式干法分选机和干法重介质流化床分选机提供空气动力。2. A kind of clean technology for dry separation of full-grain grades of coal-measure co-associated mineral resources according to claim 1, characterized in that, the composite dry separator and the dry heavy medium are fluidized by air supply equipment. The bed sorter provides air power. 3.根据权利要求1所述的一种煤系共伴生矿产资源全粒级干法分选洁净工艺，其特征在于，通过除尘设备收集光电分选机、复合式干法分选机和干法重介质流化床分选机产生的粉尘，然后将有用成分送回系统循环利用。3. a kind of coal-measure co-associated mineral resources full-grain dry separation clean process according to claim 1, is characterized in that, collects photoelectric sorter, composite dry sorter and dry process by dust removal equipment The dust generated by the heavy medium fluidized bed separator is then sent back to the system for recycling. 4.一种实施权利要求1至3任一项所述的煤系共伴生矿产资源全粒级干法分选洁净工艺的系统，其特征在于，包括原矿准备与干燥部分、分选部分和介质净化循环部分；4. A system for implementing the clean process of full-grain dry separation of coal-measure co-associated mineral resources according to any one of claims 1 to 3, characterized in that it comprises a raw ore preparation and drying part, a sorting part and a medium Purification cycle part; 所述原矿准备与干燥部分包括分级筛Ⅰ(1)、除铁器(2)、破碎机(3)、分级筛Ⅱ(4)、缓冲仓Ⅱ(8)、给料机Ⅱ(9)、干燥器(10)、缓冲仓Ⅲ(11)和给料机Ⅲ(12)；The raw ore preparation and drying part includes classification screen I (1), iron remover (2), crusher (3), classification screen II (4), buffer bin II (8), feeder II (9), drying device (10), buffer bin III (11) and feeder III (12); 所述分选部分包括缓冲仓Ⅰ(5)、给料机Ⅰ(6)、光电分选机(7)、分级筛Ⅲ(15)、复合式干法分选机(16)、缓冲仓Ⅳ(17)、给料机Ⅳ(18)和干法重介质流化床(19)；The sorting part includes a buffer bin I (5), a feeder I (6), a photoelectric sorting machine (7), a grading screen III (15), a composite dry sorting machine (16), and a buffer bin IV. (17), feeder IV (18) and dry heavy medium fluidized bed (19); 所述介质净化循环部分包括脱介筛Ⅰ(21)、脱介筛Ⅱ(22)、分流器(23)、循环介质仓(24)、介质给料机Ⅰ(25)、分流介质缓冲仓(26)、介质给料机Ⅱ(27)、磁选机(28)、磁精矿仓(29)和介质给料机Ⅲ(30)；The medium purification circulation part includes a medium removal screen I (21), a medium removal screen II (22), a diverter (23), a circulating medium bin (24), a medium feeder I (25), a diversion medium buffer bin ( 26), medium feeder II (27), magnetic separator (28), magnetic concentrate bin (29) and medium feeder III (30); 所述分级筛Ⅰ(1)的筛上出料口与破碎机(3)的入料口相连，除铁器(2)设置在分级筛Ⅰ(1)的筛上出料口与破碎机(3)的入料口之间，分级筛Ⅰ(1)的筛下出料口和破碎机(3)的出料口均与分级筛Ⅱ(4)的入料口相连，分级筛Ⅱ(4)的筛下出料口与缓冲仓Ⅱ(8)的入料口相连，缓冲仓Ⅱ(8)的出料口与给料机Ⅱ(9)的入料口相连，给料机Ⅱ(9)的出料口分别与干燥器(10)和分级筛Ⅲ(15)的入料口相连，干燥器(10)的出料口与缓冲仓Ⅲ(11)的入料口相连，缓冲仓Ⅲ(11)的出料口与给料机Ⅲ(12)的入料口相连，给料机Ⅲ(12)的出料与分级筛Ⅲ(15)的入料口相连；The discharge port on the screen of the grading screen I(1) is connected to the feeding port of the crusher (3), and the iron remover (2) is arranged on the discharge port on the screen of the grading screen I(1) and the crusher (3). ), the under-sieve discharge port of the grading screen I (1) and the discharge port of the crusher (3) are connected with the feeding port of the classifying screen II (4). The outlet under the sieve is connected to the inlet of buffer bin II (8), the outlet of buffer bin II (8) is connected to the inlet of feeder II (9), and the feeder II (9) The outlet of the dryer (10) and the inlet of the grading screen III (15) are respectively connected, the outlet of the dryer (10) is connected to the inlet of the buffer bin III (11), and the buffer bin III ( The outlet of 11) is connected to the inlet of feeder III (12), and the outlet of feeder III (12) is connected to the inlet of grading screen III (15); 分级筛Ⅱ(4)的筛上出料口与缓冲仓Ⅰ(5)的入料口相连，缓冲仓Ⅰ(5)的出料口与给料机Ⅰ(6)的入料口相连，给料机Ⅰ(6)的出料口与光电分选机(7)的入料口相连；分级筛Ⅲ(15)的筛上出料口与缓冲仓Ⅳ(17)的入料口相连，缓冲仓Ⅳ(17)的出料口与给料机Ⅳ(18)的入料口相连，给料机Ⅳ(18)的出料口与干法重介质流化床(19)的入料口相连，分级筛Ⅲ(15)的筛下出料口与复合式干法分选机(16)的入料口相连，干法重介质流化床(19)的轻产物出口与脱介筛Ⅰ(21)的入料口相连，干法重介质流化床(19)的重产物出口与脱介筛Ⅱ(22)的入料口相连；The discharge port on the screen of the grading screen II (4) is connected with the feed port of the buffer bin I (5), and the discharge port of the buffer bin I (5) is connected with the feed port of the feeder I (6). The discharge port of the feeder I (6) is connected with the feed port of the photoelectric separator (7); the upper screen discharge port of the grading screen III (15) is connected with the feed port of the buffer bin IV (17), buffering The discharge port of the bin IV (17) is connected with the feed port of the feeder IV (18), and the discharge port of the feeder IV (18) is connected with the feed port of the dry heavy medium fluidized bed (19). , the outlet under the sieve of the grading screen III (15) is connected with the inlet of the composite dry separator (16). 21) is connected to the feed port, and the heavy product outlet of the dry process heavy medium fluidized bed (19) is connected to the feed port of the de-intermediation screen II (22); 脱介筛Ⅰ(21)和脱介筛Ⅱ(22)的筛下出料口均与分流器(23)的入料口相连，分流器(23)的出料口分别与循环介质仓(24)、分流介质缓冲仓(26)的入料口相连，循环介质仓(24)的出料口与介质给料机Ⅰ(25)的入料口相连，分流介质缓冲仓(26)的出料口与介质给料机Ⅱ(27)的入料口相连，介质给料机Ⅱ(27)的出料口与磁选机(28)的入料口相连，磁选机(28)的磁性物出料口与磁精矿仓(29)的入料口相连，磁精矿仓(29)的出料口与介质给料机Ⅲ(30)的入料口相连，介质给料机Ⅰ(25)和介质给料机Ⅲ(30)的出料口均与干法重介质流化床(19)的介质添加口相连。The under-sieve discharge ports of the de-intermediation screen I (21) and the de-intermediation screen II (22) are connected with the feed port of the flow divider (23), and the discharge ports of the flow divider (23) are respectively connected with the circulating medium bin (24). ), the feed port of the diverting medium buffer bin (26) is connected, the discharging port of the circulating medium bin (24) is connected to the feeding port of the media feeder I (25), and the discharging port of the diverting medium buffer bin (26) is connected. The outlet is connected to the inlet of the medium feeder II (27), the outlet of the medium feeder II (27) is connected to the inlet of the magnetic separator (28), and the magnetic material of the magnetic separator (28) The discharge port is connected with the feed port of the magnetic concentrate bin (29), the discharge port of the magnetic concentrate bin (29) is connected with the feed port of the medium feeder III (30), and the medium feeder I (25) ) and the discharge port of the medium feeder III (30) are connected with the medium addition port of the dry process heavy medium fluidized bed (19). 5.根据权利要求4所述的煤系共伴生矿产资源全粒级干法分选洁净系统，其特征在于，还包括供风除尘部分，所述供风除尘部分包括除尘器Ⅱ(31)、引风机Ⅱ(32)、流量计(33)、风包(34)和鼓风机(35)；5. The full-grain dry separation and cleaning system for coal-measure co-associated mineral resources according to claim 4, characterized in that it further comprises an air supply and dust removal part, and the air supply and dust removal part comprises a dust collector II (31), The induced draft fan II (32), the flow meter (33), the air bag (34) and the blower (35); 所述除尘器Ⅱ(31)的入口分别与光电分选机(7)、复合式干法分选机(16)和干法重介质流化床(19)的粉尘排放口相连，除尘器Ⅱ(31)的出口与引风机Ⅱ(32)相连，除尘器Ⅱ(31)的粉尘排放口与分流器(23)的入料口相连；鼓风机(35)通过风包(34)连接流量计(33)的一端，流量计(33)的另一端分别连接复合式干法分选机(16)和干法重介质流化床(19)的通风口。The inlets of the dust remover II (31) are respectively connected with the dust discharge ports of the photoelectric separator (7), the composite dry separator (16) and the dry heavy medium fluidized bed (19). The outlet of (31) is connected to the induced draft fan II (32), the dust discharge port of the dust collector II (31) is connected to the feed port of the diverter (23); the blower (35) is connected to the flow meter ( One end of 33) and the other end of the flow meter (33) are respectively connected to the vents of the composite dry separator (16) and the dry heavy medium fluidized bed (19). 6.根据权利要求5所述的煤系共伴生矿产资源全粒级干法分选洁净系统，其特征在于，所述供风除尘部分还包括除尘器Ⅰ(13)、引风机Ⅰ(14)，除尘器Ⅰ(13)的入口与干燥器(10)的出风口相连，除尘器Ⅰ(13)的出风口与引风机Ⅰ(14)相连。6. The full-grain dry separation and cleaning system for coal-measure co-associated mineral resources according to claim 5, wherein the air supply and dust removal part further comprises a dust collector I (13), an induced draft fan I (14) , the inlet of the dust collector I (13) is connected with the air outlet of the dryer (10), and the air outlet of the dust collector I (13) is connected with the induced draft fan I (14). 7.根据权利要求4所述的煤系共伴生矿产资源全粒级干法分选洁净系统，其特征在于，所述分级筛Ⅰ(1)的筛孔孔径为200mm，所述分级筛Ⅱ(4)的筛孔孔径为100mm，所述分级筛Ⅲ(15)的筛孔孔径为6mm，所述脱介筛Ⅰ(21)和脱介筛Ⅱ(22)的筛孔孔径为2mm。7. The full-grain dry separation and cleaning system for coal-measure co-associated mineral resources according to claim 4, characterized in that the sieve aperture of the grading sieve I (1) is 200 mm, and the grading sieve II ( 4) The sieve aperture is 100 mm, the sieve aperture of the classification sieve III (15) is 6 mm, and the sieve aperture of the de-intermediation sieve I (21) and the de-intermediation sieve II (22) is 2 mm. 8.根据权利要求4所述的煤系共伴生矿产资源全粒级干法分选洁净系统，其特征在于，所述干法重介质流化床(19)内部设有测压计(20)。8. The full-grain dry separation and cleaning system for coal-measure co-associated mineral resources according to claim 4, characterized in that, a pressure gauge (20) is provided inside the dry heavy medium fluidized bed (19). . 9.根据权利要求4所述的煤系共伴生矿产资源全粒级干法分选洁净系统，其特征在于，所述光电分选机(7)为X射线分选机或图像分选机。9 . The full-grain dry sorting and cleaning system for coal-measure co-associated mineral resources according to claim 4 , wherein the photoelectric sorting machine ( 7 ) is an X-ray sorting machine or an image sorting machine. 10 . 10.根据权利要求4所述的煤系共伴生矿产资源全粒级干法分选洁净系统，其特征在于，所述干燥器(10)为振动混流干燥器。10. The full-grain dry separation and cleaning system for coal-measure co-associated mineral resources according to claim 4, characterized in that the dryer (10) is a vibrating mixed-flow dryer.
CN201811085371.9A 2018-09-18 2018-09-18 A clean process and system for full-grain dry separation of coal-measure co-associated mineral resources Pending CN109331987A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811085371.9A CN109331987A (en) 2018-09-18 2018-09-18 A clean process and system for full-grain dry separation of coal-measure co-associated mineral resources

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811085371.9A CN109331987A (en) 2018-09-18 2018-09-18 A clean process and system for full-grain dry separation of coal-measure co-associated mineral resources

Publications (1)

Publication Number Publication Date
CN109331987A true CN109331987A (en) 2019-02-15

Family

ID=65305393

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811085371.9A Pending CN109331987A (en) 2018-09-18 2018-09-18 A clean process and system for full-grain dry separation of coal-measure co-associated mineral resources

Country Status (1)

Country Link
CN (1) CN109331987A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110118775A (en) * 2019-05-10 2019-08-13 重庆交通大学 Plantmix's cement stabilized macadam aggregate forms rapid detection method
CN111686927A (en) * 2020-06-22 2020-09-22 金建工程设计有限公司 Resource utilization method of tungsten ore waste rock and tungsten tailings
CN112007748A (en) * 2020-08-15 2020-12-01 北京国华科技集团有限公司 A kind of method for sorting bauxite ore
CN112076885A (en) * 2020-08-17 2020-12-15 天地（唐山）矿业科技有限公司 Enrichment process of coal-series kaolin in coal gangue
CN112871401A (en) * 2021-01-11 2021-06-01 河北工程大学 Coal mine associated mineral product gravity separation screening system and method
CN113020210A (en) * 2021-03-06 2021-06-25 昆明冶金高等专科学校 Ferro-manganese ore radial mineral separation and resource comprehensive utilization process
CN114850082A (en) * 2022-05-18 2022-08-05 云南磷化集团有限公司 A kind of kaolin iron removal purification and sorting method
CN114849892A (en) * 2022-05-07 2022-08-05 金易通（天津）智能装备有限公司 Dry dust-free lump material dry separation method and system
CN114950710A (en) * 2022-05-11 2022-08-30 中国矿业大学 Whole particle fraction separation and pre-enrichment system and process for coal-series co-associated mineral gallium and lithium
CN115911283A (en) * 2022-11-17 2023-04-04 中国矿业大学 Dry modification upgrading method for production raw materials of graphite electrode and battery cathode

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000061398A (en) * 1998-08-24 2000-02-29 Zennosuke Tanaka Method and apparatus for dry separation of coal
CN202725512U (en) * 2012-08-01 2013-02-13 安徽理工大学 Full-grain high-efficiency dry coal preparation system for power coal separation
CN105214956A (en) * 2015-10-28 2016-01-06 中国矿业大学 A kind of dense gas solid bed dry separation system and technique
CN105289985A (en) * 2015-11-20 2016-02-03 中国矿业大学 Coal full-size dry separation cleaning process and system
CN107008565A (en) * 2017-05-09 2017-08-04 神华包头能源有限责任公司 A kind of thermal coal deep screening and dense medium separation technique

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000061398A (en) * 1998-08-24 2000-02-29 Zennosuke Tanaka Method and apparatus for dry separation of coal
CN202725512U (en) * 2012-08-01 2013-02-13 安徽理工大学 Full-grain high-efficiency dry coal preparation system for power coal separation
CN105214956A (en) * 2015-10-28 2016-01-06 中国矿业大学 A kind of dense gas solid bed dry separation system and technique
CN105289985A (en) * 2015-11-20 2016-02-03 中国矿业大学 Coal full-size dry separation cleaning process and system
CN107008565A (en) * 2017-05-09 2017-08-04 神华包头能源有限责任公司 A kind of thermal coal deep screening and dense medium separation technique

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110118775A (en) * 2019-05-10 2019-08-13 重庆交通大学 Plantmix's cement stabilized macadam aggregate forms rapid detection method
CN110118775B (en) * 2019-05-10 2021-11-19 重庆交通大学 Method for rapidly detecting composition of plant-mixed cement stabilized macadam aggregate
CN111686927B (en) * 2020-06-22 2021-09-03 金建工程设计有限公司 Resource utilization method of tungsten ore waste rock and tungsten tailings
CN111686927A (en) * 2020-06-22 2020-09-22 金建工程设计有限公司 Resource utilization method of tungsten ore waste rock and tungsten tailings
CN112007748A (en) * 2020-08-15 2020-12-01 北京国华科技集团有限公司 A kind of method for sorting bauxite ore
CN112076885A (en) * 2020-08-17 2020-12-15 天地（唐山）矿业科技有限公司 Enrichment process of coal-series kaolin in coal gangue
CN112871401A (en) * 2021-01-11 2021-06-01 河北工程大学 Coal mine associated mineral product gravity separation screening system and method
CN113020210A (en) * 2021-03-06 2021-06-25 昆明冶金高等专科学校 Ferro-manganese ore radial mineral separation and resource comprehensive utilization process
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
CN114849892A (en) * 2022-05-07 2022-08-05 金易通（天津）智能装备有限公司 Dry dust-free lump material dry separation method and system
CN114950710A (en) * 2022-05-11 2022-08-30 中国矿业大学 Whole particle fraction separation and pre-enrichment system and process for coal-series co-associated mineral gallium and lithium
WO2023216690A1 (en) * 2022-05-11 2023-11-16 中国矿业大学 Whole size-fraction sorting pre-enrichment system and process for coal-series co-associated mineral gallium lithium
CN114850082A (en) * 2022-05-18 2022-08-05 云南磷化集团有限公司 A kind of kaolin iron removal purification and sorting method
CN115911283A (en) * 2022-11-17 2023-04-04 中国矿业大学 Dry modification upgrading method for production raw materials of graphite electrode and battery cathode
CN115911283B (en) * 2022-11-17 2023-09-22 中国矿业大学 Dry modification and quality improvement method for battery cathode production raw material

Similar Documents

Publication Publication Date Title
CN109331987A (en) A clean process and system for full-grain dry separation of coal-measure co-associated mineral resources
CN105268544B (en) A kind of wide grade Coaseries kaolin process for upgrading based on fluidization sorting
CN108212506B (en) A kind of magnetic-is red-the classification pre-selection of water chestnut compound iron ore, fine New Method for Sorting
US11358152B2 (en) Underground coal separation process adopting water medium
CN105289985B (en) Full-fraction dry method separation clean technology and method for coal
CN105214956B (en) A kind of dense gas solidization bed dry separation system and technique
CN111659527B (en) Gasification slag water medium cyclone gravity carbon ash separation device and method
CN109331989B (en) A coal full-grain dry dehydration and deashing process
CN105080702B (en) A kind of efficient coal-series pyrite dry method process of enriching and system
CN109482494B (en) Full-particle-level dry method quality-improving and gangue-discharging process for power coal
CN109351467A (en) A sorting process for treating maghemite mixed ore based on iron mineral embedded particle size
CN102319619B (en) Graded washing process for raw coal
CN105597914B (en) A kind of dense media disturbs bed separation of coarse slime system
CN105195427B (en) A kind of iron ore dry separation technique based on dense gas solid bed
CN114472207B (en) Mineral sorting system and mineral sorting method
CN205110130U (en) Clean system is selected separately to whole grain level dry process of coal
CN108855579B (en) Coal dressing method by using aqueous medium cyclone
CN103341398B (en) Coal separation method in which lump coal and fine coal dense media share same recovery system
CN115945288A (en) A metal mineral enrichment process and system based on dry separation equipment
CN113399133B (en) Dry classification system and classification process for tailings
Wotruba Development of a new dry density separator for fine-grained materials
RU2665120C1 (en) Method of complex dry processing of fly ash and technological line for processing of fly area
CN106111534B (en) A kind of modular bauxite by dry method sorting process
CN217314535U (en) Vibrating screen and dynamic powder concentrator combined ore grinding and grading system
CN109482493A (en) A kind of wholegrain grade oil shale dry-process sorting process

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
CB03 Change of inventor or designer information

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

CB03 Change of inventor or designer information
RJ01 Rejection of invention patent application after publication

Application publication date: 20190215

RJ01 Rejection of invention patent application after publication