CN1099318A - Vibration fluidized-bed dry sorting method and apparatus for fine coal - Google Patents
Vibration fluidized-bed dry sorting method and apparatus for fine coal Download PDFInfo
- Publication number
- CN1099318A CN1099318A CN 93111717 CN93111717A CN1099318A CN 1099318 A CN1099318 A CN 1099318A CN 93111717 CN93111717 CN 93111717 CN 93111717 A CN93111717 A CN 93111717A CN 1099318 A CN1099318 A CN 1099318A
- Authority
- CN
- China
- Prior art keywords
- bed
- air
- fine coal
- distribution plate
- underflow
- 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.)
- Granted
Links
- 239000003245 coal Substances 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims description 9
- 239000012530 fluid Substances 0.000 claims abstract description 51
- 238000005243 fluidization Methods 0.000 claims abstract description 15
- 238000007667 floating Methods 0.000 claims abstract description 10
- 238000009826 distribution Methods 0.000 claims description 28
- 239000000463 material Substances 0.000 claims description 19
- 239000003550 marker Substances 0.000 claims description 18
- 238000000926 separation method Methods 0.000 claims description 17
- 230000000087 stabilizing effect Effects 0.000 claims description 16
- 201000002282 venous insufficiency Diseases 0.000 claims description 13
- 239000000843 powder Substances 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 7
- 239000004744 fabric Substances 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 6
- 230000035939 shock Effects 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000005245 sintering Methods 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 239000013049 sediment Substances 0.000 abstract 2
- 230000005587 bubbling Effects 0.000 description 4
- 210000005056 cell body Anatomy 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000013590 bulk material Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000004579 marble Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Images
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention makes the use of vibration fluidization to form quasi-fluid in sorting groove, granular coal is separated into floating one and sediment in the quasi-fluid, the floating coal can be scraped out by a blade wheel, the sediment can be discharged due to vibration and an inclination of the fluid bed, it has no need of water, does not pullute environment, its sorting rate is high, it is specially suitable for coal sorting in severely cold region and in such region where water is lacking.
Description
The present invention relates to a kind of separation method and device thereof of solid bulk material, especially a kind of fluidized bed dry type method for separating and device thereof of Bed for Fine Coal.
Existing coal separation method great majority all adopt wet split, to the general employing of sorting of Bed for Fine Coal heavily be situated between cyclone, smalls jigging machine and shaking table etc., but all need water, and water consumption is big, be not suitable for the coal separation of severe cold, water-deficient area and the easy argillization coal of chance water, the slurry circulating system complexity often causes serious pollution to surrounding environment, the product needed dehydration of choosing back, its cost height.Novel dry sorting method and equipment have successively appearred in recent years, as Chinese patent: dressing coal with dry fluidized bed method and device thereof, the patent No.: CN 87101056A and United States Patent (USP) the 4194917th all are to utilize fluidization technology, granule materials or coal that the sorting different densities is formed, though the two essence has a lot of differences, but all be sorting in the bubbling bed, this bubbling bed does not have the particulate fluidization zone, gas speed is discharged with the form of bubble greater than the throughput of minimum fluidizing velocity, forms the bubbling bed.The bigger bubble diameter and the stirring of bubbling have a significant impact the sorting of Bed for Fine Coal, Bed for Fine Coal and medium are produced mix or by the granule size classification, can't realize by density separation.And for example the design of Chinese patent 87207129 is to adopt the chain scraper of imbedding in the bed to scrape float coal and spoil, when the scraper plate translational speed is big, fluidized-bed layer there is bigger disturbance, influence the stability and the uniformity of fluidized-bed layer, cause the fluidized-bed layer disorder, the spoil of float in the sorting band cleaned coal and sinking can be polluted mutually, reduced sharpness of separation.Its pre-air compartment adopts glass marble to make charges improving cloth wind performance, but has increased the weight of fluid bed; This separator has influenced the fluidizing stability at fluid bed middle part from sorting band middle part feed, has shortened sorting length and sorting time, and sorting groove utilization rate is lower, and equipment volume is bigger.
The objective of the invention is to design a kind of novel vibrated fluidized bed in order to overcome above-mentioned weak point of the prior art, after in common fluid bed, removing the anchor chain screeding device, introduce vibration source and constitute vibrated fluidized bed, it is to utilize vibrated fluidized bed can form the feature of particulate fluidization state and uniform and stable quasi-fluid density, solve the dry separation problem of Bed for Fine Coal, it can reduce environmental pollution, reduces the coal separation cost.
Task of the present invention realizes that as follows it mainly is made up of fluid bed housing, air-distribution device, vibrating device, charging gear, discharge device and last sealing cover.In the fluid bed housing, in the air dense medium fluidized bed of material under being in fluidized state by the layering of density size, along the pressure reduction that exists on the length direction with under the effect of vibration material is moved because of feed to the other end from an end of bed simultaneously, sorting band two ends along the bed length direction in the fluid bed housing respectively are provided with material inlet and light material discharge port, below light material discharge port, be provided with the heavy material discharge gate, external chute and underflow marker impeller under the heavy material discharge gate; Light material mouth place establishes the overflow marker impeller, and the material inlet place is connected with the feed chute.The top of fluid bed housing is fixed with the last sealing cover of band blast pipe, on the two sides vertical, respectively be fixed with a vibrating motor with the bed length direction, the bed groove is gone to the bottom and is fixed with air-distribution device, air-distribution device comprises air distribution plate, voltage stabilizing air compartment and air chamber, be provided with the air inlet pipe of wind-distributing pipe and perpendicular connection in the air chamber, many apertures that are directed downwards are arranged on the wind-distributing pipe, voltage stabilizing air compartment is a hollow rectangle framework, its upper base and go to the bottom air distribution plate and pre-air distribution plate are installed, the top is connected with bottom fastening bolt under air distribution plate and the fluid bed housing in the voltage stabilizing air compartment, goes to the bottom to be connected with pre-air distribution plate and air chamber bolt.Fluid bed integral body bottom is installed on the shock insulation spring, and the shock insulation spring is rubber spring or metal spring.
The powder weighting material of certain altitude is housed in the fluid bed housing, when when air chamber feeds compressed air, to fluid bed cell body even distributing wind, air-flow flows through each particle interface of powder to compressed air equably through pre-air distribution plate and air distribution plate, when air-flow during greater than minimum fluidizing velocity, granular powder suspends, form the mixture of air-flow and powder, have flowability, and certain suspended substance density is arranged, have similar characteristic to fluid, form the fluid bed quasi-fluid; The material that this moment, feeding mouth added in fluid bed is divided into floating thing and hypostasis by the density size in air dense medium fluidized bed; The invention is characterized in common fluid bed and introduce vibration source device, constitute vibrated fluidized bed, strengthen fluidization characteristic, it can form still or small burble state, formula or accurate particulate fluidization state promptly loose, the fluidization characteristic of vibration itself has been strengthened the stability and the density homogeneity of fluid bed quasi-fluid.Vibration under the appropriate state has improved the contact performance of gas-solid two-phase, has eliminated bubble and has produced and the mechanism that merges, so air-flow is greater than Initiation speed and when increasing, the voidage of quasi-fluid is linear basically to be increased, and suspended substance density reduces, and regulates the density that air velocity can be regulated quasi-fluid.So vibrated fluidized bed sorting coal, its duty is particulate fluidization or accurate particulate fluidization, and density is uniform and stable, is particularly useful for the sorting of Bed for Fine Coal.Can regulate the coincidence angular adjustment amplitude of exciting piece in the vibrating motor as required, regulate adjustable chassis and can regulate direction of vibration, change frequency of supply and can change shake frequency.The bottom hypostasis is taked vibrating direction angle and certain fluid bed inclination angle, realizes that hypostasis moves to exhaust end in bed, discharges hypostasis by the underflow marker impeller, and floating thing is discharged outside the groove from floating thing discharge gate by the overflow marker impeller.
The present invention compared with prior art has the following advantages, and fluid bed is introduced in vibration, improves the quasi-fluid characteristic, forms the particulate fluidization state, is specially adapted to by density continuous sorting particulate coal; Can sorting in microvesicle and still fluid bed, its adjustable density, efficiency of separation height; The present invention is specially adapted to sorting 6～1mm Bed for Fine Coal, with existing dry separation complete sets of Techniques, realizes that the full level of coal dry method is selected, and reduced investment is pollution-free.Through half type approval test, can realize the sorting of continous-stable, respond well.
Description of drawings:
Fig. 1 is external form figure of the present invention.
Fig. 2 is the A-A cutaway view of external form figure of the present invention.
Below in conjunction with accompanying drawing embodiments of the invention are described in further detail, as shown in Figures 1 and 2, it is made up of vibrating motor 1, fixed underpan 2, fluid bed housing 3, last sealing cover 4, air distribution plate 5, rubber blanket 6, adjustable chassis 7, voltage stabilizing air compartment 8, pre-air distribution plate 9, shock insulation spring 10, wind-distributing pipe 11, air inlet pipe 12, air chamber 13, feed chute 14, float coal marker impeller 15, underflow chute 16 and underflow marker impeller 17 etc.Fluid bed housing 3 is rectangle hollow frameworks, no member in the bed, the fluid bed inclination angle is 0～20 °, heavy coal is moved to the discharge direction in bed smoothly, and by underflow chute 16 and 17 discharges of underflow marker impeller, very useful bolting has last sealing cover 4 on the bed body, and the blast pipe that can be connected with dust arrester is arranged on the last sealing cover, the last sealing cover junction rubber seal that pushes up on it and the fluid bed housing 3; Fluid bed housing 3 gone to the bottom air distribution plate 5, voltage stabilizing air compartment 8, pre-air distribution plate 9 and air chamber 13, the top is air distribution plate 5 in the voltage stabilizing air compartment 8, go to the bottom and be pre-air distribution plate 9, it constitutes double-deck voltage stabilizing cloth wind, improved cloth wind performance, make compressed air enter pressure stability behind the voltage stabilizing air chamber, can realize that cloth wind is even by pre-air distribution plate; Air distribution plate and pre-air distribution plate all are to be made by the sintered plate with porous; Voltage stabilizing air compartment 8 and air chamber 13 are by a plurality of separate separations, cuboid and the inverted ladder type cell body formed of corresponding air chamber up and down, on the air chamber 13 top with pre-fabric swatch 9 and voltage stabilizing air compartment 8 goes to the bottom, push up in the voltage stabilizing air compartment 8 and air distribution plate 5 and fluid bed housing go to the bottom between all with rubber seal and bolting, there is the wind-distributing pipe 11 and its a plurality of air inlet pipe 12 connected vertically that crosses each air chamber at air chamber 13 middle parts, and many directions aperture is down arranged on the wind-distributing pipe 11.Along 3 length direction two ends of fluid bed housing material inlet and light thing discharge gate are arranged, below light thing discharge gate, the weight discharge gate is arranged, its below is connected with underflow chute 16 and underflow marker impeller 17, and the impeller transmission connects with motor by universal coupling, and motor does not participate in vibration.In order to make the underflow discharge unimpeded, going to the bottom in underflow chute 16 exits is provided with Channel Group's device, and it comprises air compartment and air inlet pipe, is connected the sintered plate of a porous and uses bolting between air compartment and chute 16 bottoms; After compressed air feeds from inlet plenum, go into the chute bottom by porous sintered plate current, unimpeded to help discharge, float coal marker impeller 15 is installed in light thing discharge gate inboard, and it mainly is that float coal is scraped outside discharge gate is discharged bed; The external feed chute 14 of material inlet is provided with Channel Group's device that comprises air compartment and air inlet pipe for feed is smooth and easy in this chute bottom, and its connected mode is identical with chute 16 bottom Channel Group devices; With the perpendicular relative two sides of bed length direction a fixed underpan 2, adjustable chassis 7 and vibrating motor 1 are being installed respectively, four angles of fluid bed integrated bottom are installed on four shock insulation springs 10, and isolation spring adopts rubber spring or metal spring.The shock insulation spring is installed on the basis.
Certain powder weighting material is housed in fluid bed housing 3, through air inlet pipe 12, wind-distributing pipe 11, air chamber 13 and voltage stabilizing air compartment 8 send into compressed air, make powder weighting material fluidisation, the material that feeds in the fluid bed housing 3 is divided into floating thing and hypostasis (coal and spoil) and underflow chute 16 and 17 discharges of underflow marker impeller by floating thing marker impeller 15 and hypostasis discharge gate respectively by density in the air dense medium fluid bed, feature of the present invention is that fluid bed is introduced in vibration, strengthen fluidization characteristic, make fluid bed form loose formula or accurate particulate fluidization state, its density is uniform and stable, as the sorting of Bed for Fine Coal density.Density can be by changing gas velocity modulation joint; Regulate the coincidence angle of exciting piece in the vibrating motor 1, can regulate amplitude, best amplitude is between 0～4mm; Change frequency of supply, can regulate shake frequency, vibration frequency is between 10～100HZ.Regulate direction of vibration by regulating adjustable chassis 2; The bottom hypostasis is taked vibrating direction angle and certain fluid bed inclination angle, realizes that hypostasis moves to exhaust end in bed, discharges hypostasis by underflow marker impeller 17.
Claims (8)
1, a kind of vibrated fluidized bed Bed for Fine Coal dry-type separation device, it has a fluid bed housing (3), be the rectangle framework, top connects upward sealing cover (4) on it, going to the bottom connects air distribution plate (5), voltage stabilizing air compartment (8), pre-air distribution plate (9), air chamber (13), and wind-distributing pipe (11) and air inlet pipe (12) are arranged in the air chamber; Along bed length direction two ends charging aperture and light thing discharge gate are arranged, below light thing discharge gate, be provided with a hypostasis discharge gate; Hypostasis discharge gate below is connected with underflow chute (16) and underflow marker impeller (17), the external feed chute of charging aperture (14), there is floating thing marker impeller (15) light thing discharge gate inboard, voltage stabilizing air compartment (8) and air chamber (13) are made of corresponding up and down a plurality of separate separation air chambers, air distribution plate (5) and pre-air distribution plate (9) all are to manufacture with the sintered plate of porous; Going to the bottom of fluid bed integral body is installed on four shock insulation springs; The invention is characterized in: a fixed underpan (2), adjustable chassis (7) and vibrating motor (1), its direction of vibration, amplitude and frequency adjustable respectively are being installed with the perpendicular two relative side of bed length direction; The bed body can have certain inclination angle; The bottom of feed chute (14) and underflow chute (16) is equipped with Channel Group's device.
2, vibrated fluidized bed Bed for Fine Coal dry-type separation device according to claim 1 is characterized in that: described fluid bed housing (3) is a hollow rectangle framework, no member and moving component in the bed.
3, vibrated fluidized bed Bed for Fine Coal dry-type separation device according to claim 1 is characterized in that: certain inclination angle is arranged at described fluid bed bottom is between 0～20 °.
4, vibrated fluidized bed Bed for Fine Coal dry-type separation device according to claim 1, it is characterized in that: the bottom Channel Group device of described feed chute (14) and underflow chute (16) is made up of air compartment and air inlet pipe, be connected the metal sintering plate of a porous between air compartment and the chute bottom, fix with Bolt Connection; Underflow chute (16) bottom connects a underflow marker impeller (17).
5, vibrated fluidized bed Bed for Fine Coal dry-type separation device according to claim 1, it is characterized in that: have one to make pressure stability, realization cloth wind uniform voltage stabilizing air compartment (8) between described air distribution plate (5) and the pre-air distribution plate (9), pre-air distribution plate (9) all is metal sintering plates of selecting simple porous for use with air distribution plate (5).
6, vibrated fluidized bed Bed for Fine Coal dry-type separation device according to claim 1 is characterized in that: the transmission of described marker impeller (15) and (17) is to connect with motor by universal coupling, and motor does not participate in vibration.
7, a kind of vibrated fluidized bed Bed for Fine Coal dry sorting method, the powder weighting material of certain altitude is housed in fluid bed housing (3), through air inlet pipe, air chamber and voltage stabilizing air compartment send into compressed air makes the material that feeds in the fluid bed housing (3) be divided into floating thing and hypostasis (coal and spoil) in air dense medium fluidized bed, and discharge by the marker impeller of floating thing and hypostasis discharge gate respectively, the invention is characterized in: will vibrate and introduce fluid bed, strengthen fluidization characteristic, make fluid bed form the quasi-fluid of particulate fluidization state and uniform and stable density, as the sorting of Bed for Fine Coal by density, density can be by changing gas velocity modulation joint as required, regulate the coincidence angle of the interior exciting piece of vibrating motor (1), can regulate amplitude; Change frequency of supply, can regulate shake frequency; By regulating adjustable chassis (2), regulate direction of vibration; The heavy coal in bottom is owing to vibrating direction angle and certain inclination angle, and the heavy coal of realization to the exhaust end motion, is discharged by underflow chute (16) and underflow marker impeller (17) in bed.
8, vibrated fluidized bed Bed for Fine Coal dry sorting method according to claim 7, it is characterized in that: the amplitude of described vibrating motor (1) can be regulated between 0～4mm; Vibration frequency can be regulated between 10～100HZ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93111717A CN1046102C (en) | 1993-02-15 | 1993-08-21 | Vibration fluidized-bed dry sorting method and apparatus for fine coal |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93110571 | 1993-02-15 | ||
| CN93110571.4 | 1993-02-15 | ||
| CN93111717A CN1046102C (en) | 1993-02-15 | 1993-08-21 | Vibration fluidized-bed dry sorting method and apparatus for fine coal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1099318A true CN1099318A (en) | 1995-03-01 |
| CN1046102C CN1046102C (en) | 1999-11-03 |
Family
ID=25743069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93111717A Expired - Fee Related CN1046102C (en) | 1993-02-15 | 1993-08-21 | Vibration fluidized-bed dry sorting method and apparatus for fine coal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1046102C (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1970160B (en) * | 2005-11-25 | 2011-03-16 | 株式会社栗本铁工所 | Filtering device |
| CN102161016A (en) * | 2009-10-26 | 2011-08-24 | 孙刚 | Air heavy-media dry-process sorting equipment |
| CN102728448A (en) * | 2012-06-08 | 2012-10-17 | 清华大学 | Dry coal preparation device for fluidized bed |
| CN102834181A (en) * | 2010-02-01 | 2012-12-19 | 弗吉尼亚科技知识产权公司 | Cleaning and dewatering fine coal |
| CN102876341A (en) * | 2012-10-08 | 2013-01-16 | 陈正伟 | Unit multistage quick-pyrolysis device for low-rack coal pyrolysis |
| CN104014484A (en) * | 2014-06-04 | 2014-09-03 | 衢州市优德工业设计有限公司 | Vibration type air dense medium fluidized bed sorting method |
| CN104722387A (en) * | 2014-12-17 | 2015-06-24 | 上海大学 | Discarded metal particle dry method gravity concentration separation method |
| US9518241B2 (en) | 2010-02-01 | 2016-12-13 | Virginia Tech Intellectual Properties, Inc. | Method of separating and de-watering fine particles |
| CN107899933A (en) * | 2017-11-22 | 2018-04-13 | 河北地质大学 | A kind of multilayer integrated series connection vertical telescopic dry method vibration sculping screen |
| CN110605177A (en) * | 2019-10-24 | 2019-12-24 | 中国矿业大学 | Differential gas-solid separation vibrating fluidized bed coal separation device and method |
| US11331676B2 (en) | 2010-02-01 | 2022-05-17 | Virginia Tech Intellectual Properties, Inc. | Cleaning and dewatering fine coal |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103196281B (en) * | 2013-04-02 | 2015-01-21 | 中国矿业大学 | Drying and separation integrated machine for vibrated fluidized bed |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1091621A (en) * | 1977-09-13 | 1980-12-16 | Canadian Patents And Development Limited | Method of sorting fluidized particulate material and apparatus therefor |
| FR2575680B1 (en) * | 1985-01-08 | 1987-07-03 | Pechiney Aluminium | FLUIDIZED BED DEVICE FOR THE CONTINUOUS SEPARATION OF TWO MIXED SOLID PHASES |
| CN1005314B (en) * | 1987-05-28 | 1989-10-04 | 中国矿业学院 | Process and device for dressing coal with dry fluidized bed |
| DE3719288A1 (en) * | 1987-06-10 | 1988-12-22 | Foerder & Anlagentechnik Gmbh | METHOD AND ARRANGEMENT FOR SEPARATING DIFFERENT SPECIFIC WEIGHTS |
| US5265730A (en) * | 1992-04-06 | 1993-11-30 | Sweco, Incorporated | Vibratory screen separator |
-
1993
- 1993-08-21 CN CN93111717A patent/CN1046102C/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1970160B (en) * | 2005-11-25 | 2011-03-16 | 株式会社栗本铁工所 | Filtering device |
| CN102161016A (en) * | 2009-10-26 | 2011-08-24 | 孙刚 | Air heavy-media dry-process sorting equipment |
| US10457883B2 (en) | 2010-02-01 | 2019-10-29 | Virginia Tech Intellectual Properties, Inc. | Method of separating and de-watering fine particles |
| US9789492B2 (en) | 2010-02-01 | 2017-10-17 | Virginia Tech Intellectual Properties, Inc. | Cleaning and dewatering fine coal |
| US11331676B2 (en) | 2010-02-01 | 2022-05-17 | Virginia Tech Intellectual Properties, Inc. | Cleaning and dewatering fine coal |
| US10913912B2 (en) | 2010-02-01 | 2021-02-09 | Virginia Tech Intellectual Properties, Inc. | Methods for separating and dewatering fine particles |
| US10562038B2 (en) | 2010-02-01 | 2020-02-18 | Virginia Tech Intellectual Properties, Inc. | Cleaning and dewatering fine coal |
| CN102834181A (en) * | 2010-02-01 | 2012-12-19 | 弗吉尼亚科技知识产权公司 | Cleaning and dewatering fine coal |
| CN102834181B (en) * | 2010-02-01 | 2015-07-15 | 弗吉尼亚科技知识产权公司 | Cleaning and dewatering fine coal |
| US9518241B2 (en) | 2010-02-01 | 2016-12-13 | Virginia Tech Intellectual Properties, Inc. | Method of separating and de-watering fine particles |
| CN102728448A (en) * | 2012-06-08 | 2012-10-17 | 清华大学 | Dry coal preparation device for fluidized bed |
| CN102876341B (en) * | 2012-10-08 | 2014-05-21 | 高荣 | Unit multistage quick-pyrolysis device for low-rack coal pyrolysis |
| CN102876341A (en) * | 2012-10-08 | 2013-01-16 | 陈正伟 | Unit multistage quick-pyrolysis device for low-rack coal pyrolysis |
| CN104014484A (en) * | 2014-06-04 | 2014-09-03 | 衢州市优德工业设计有限公司 | Vibration type air dense medium fluidized bed sorting method |
| CN104722387A (en) * | 2014-12-17 | 2015-06-24 | 上海大学 | Discarded metal particle dry method gravity concentration separation method |
| CN107899933A (en) * | 2017-11-22 | 2018-04-13 | 河北地质大学 | A kind of multilayer integrated series connection vertical telescopic dry method vibration sculping screen |
| CN107899933B (en) * | 2017-11-22 | 2020-11-06 | 河北地质大学 | Multilayer integrated series vertical telescopic dry-method vibration medium removing sieve |
| CN110605177A (en) * | 2019-10-24 | 2019-12-24 | 中国矿业大学 | Differential gas-solid separation vibrating fluidized bed coal separation device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1046102C (en) | 1999-11-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1046102C (en) | Vibration fluidized-bed dry sorting method and apparatus for fine coal | |
| CN100387353C (en) | Dry-process separating bed, combined type dry-process separator adopting the separating bed and separating device | |
| CN2165939Y (en) | Dry type sorting unit of vibrating fluidized bed for fine coals | |
| CA1160993A (en) | Method and apparatus for classifying particles | |
| US4501599A (en) | Method and apparatus for cleaning waste gases from aluminum production facilities | |
| CN102921636B (en) | Authigenic medium vibrated fluidized bed dry separating method | |
| CN103406267A (en) | Slack coal jigging dry separator and complete equipment thereof | |
| CN109454001A (en) | A kind of vibration winnowing device | |
| CN108499863A (en) | A kind of fluidization dry-type separation equipment for solid particle material sorting | |
| CN102806202B (en) | Fluid-bed separator comprising vibrating air distribution plate | |
| CN106111533B (en) | A kind of mineral dry method vibration sorting unit and method | |
| CA1170624A (en) | Process and apparatus for separating particles by relative density | |
| CN1045552C (en) | Dry coal grading method and device | |
| CN108187409A (en) | A kind of multilayer gravitational settling dust-precipitator | |
| CN208135500U (en) | A kind of dry-mixed mortar feeding device | |
| CN209646992U (en) | A kind of vibration winnowing device | |
| CN1005314B (en) | Process and device for dressing coal with dry fluidized bed | |
| CN106552721A (en) | The dry method cull eliminator that drifts along is centrifuged | |
| CN111589706B (en) | Fine-grained particle group same-stage grading and sorting device for dry coal preparation | |
| CN2177528Y (en) | Fluidized magnetic field separator | |
| CN2475481Y (en) | Magnetic stabilizing fluidized bed selective separation | |
| WO1998029202A1 (en) | A screenless vibrator separator | |
| JP2004313953A (en) | Dry separator | |
| CN206587917U (en) | Centrifuge the dry method cull eliminator that drifts along | |
| CN105880005A (en) | Mineral sorting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |