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EP0081087A2 - Procédé et dispositif pour séparer des matières en vrac suivant la densité - Google Patents

Procédé et dispositif pour séparer des matières en vrac suivant la densité Download PDF

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Publication number
EP0081087A2
EP0081087A2 EP82110239A EP82110239A EP0081087A2 EP 0081087 A2 EP0081087 A2 EP 0081087A2 EP 82110239 A EP82110239 A EP 82110239A EP 82110239 A EP82110239 A EP 82110239A EP 0081087 A2 EP0081087 A2 EP 0081087A2
Authority
EP
European Patent Office
Prior art keywords
component
residual material
sieve
scraper
coarse
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.)
Withdrawn
Application number
EP82110239A
Other languages
German (de)
English (en)
Other versions
EP0081087A3 (fr
Inventor
Klaus Dr.-Ing. Hannes
Heinz Dipl.-Ing. Sättler
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.)
Steag GmbH
Original Assignee
Steag GmbH
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 Steag GmbH filed Critical Steag GmbH
Publication of EP0081087A2 publication Critical patent/EP0081087A2/fr
Publication of EP0081087A3 publication Critical patent/EP0081087A3/fr
Withdrawn legal-status Critical Current

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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
    • B03B4/00—Separating by pneumatic tables or by pneumatic jigs
    • B03B4/02—Separating by pneumatic tables or by pneumatic jigs using swinging or shaking tables
    • 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
    • B03B9/005—General arrangement of separating plant, e.g. flow sheets specially adapted for coal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets

Definitions

  • the invention relates to a method for density separation of a bulk mixture of the type mentioned in the preamble of claim 1 above.
  • the density separation system has an inclined vibrating trough which the denser material, ie. H. conveys the mixture of heavy pyrite, crushed mountains and coarse-grained coal in one direction and allows the fluidized fine coal to flow downwards.
  • the residual material drawn off from the density separation stage can be subjected to a subsequent screening in order to separate the coarsely coarse coal compared to the pyrite or the crushed mountains.
  • a separation of the carried mountains from the pyrite is also addressed in order to enable further utilization of the pyrite or the sulfur contained therein. For this purpose, the semolina is removed from the vibrating trough.
  • the directional oscillating movement of the vibrating channel which is required to separate the fine fraction of the first component, is additionally used for the separation of at least the coarse fraction of the first component; when using a screening device for separating z. B. no special drive for the separation device is required.
  • the density of the pyrite is about 5 g / cm 3 ; that of the mountains about 2 - 2.5 g / cm 3 and that of the coal, depending on the composition, 1.2 - 1.7 g / cm.
  • the residual material be sieved during the oscillating conveying in order to separate the coarse-grained coal.
  • the vibrations of the vibrating trough are used for sieving.
  • the grain size values can vary to a certain extent depending on the type or mixture of coal.
  • the invention is also directed to a device for density separation.
  • the invention is based on a device according to the preamble of claim 6.
  • the separating device viewed in the conveying direction of the residual material, is arranged in the vibrating channel directly behind the inflow floor.
  • the vibrating channel 1 shown in FIG. 1 has an inflow floor 3 which extends over two air chambers 2 a and 2 b.
  • the two air chambers are separated from one another by a web 4.
  • the air chamber 2 a is pressurized with fluidizing air La of lower pressure and the air chamber 2 b with air La of higher pressure.
  • a vibrating drive 5 engages on the vibrating trough 1, which can set the vibrating trough 1 in a directional swinging motion according to the micro-throwing principle.
  • Such drives are known.
  • a sieve plate 6 Seen in the conveying direction of the directed oscillating movement, a sieve plate 6 directly adjoins the inflow plate 3; To remove the sieve passage, the sieve chamber 6 located under the sieve bottom is provided with an outlet 8. Air chamber 2 b and sieve chamber 7 are separated from each other by a wall 9. The longitudinal walls of the chambers 2 a, 2 b and 7 are not shown in the schematic illustration.
  • this device When using this device for separating ground raw coal, it is applied to the inflow floor 3 in the form of a bulk material mixture consisting of finely divided carbon FK, coarse coal GK, pyrite P and mountains B.
  • the fine-particle coal FK is fluidized by the fluidizing air L and flows to the left in FIG. 1, as shown by the arrow FK.
  • the other components GK, P, and B are conveyed by the directional oscillating movement against the outflow direction of the fine coal FK, ie to the right in FIG. floor 6 promoted.
  • the hole size in the sieve plate 6 is chosen so that the coarse coal GK remains on the sieve as residue, while the mixture P + B can be drawn off as sieve throughput. This is in the Figure represented by the arrows. In the areas given as preferred grain sizes in the introduction, the hole diameter in the sieve tray 6 should be in the range of 0.5 and 1 mm.
  • a dust plate 10 is provided on the right end of the sieve plate 6 in order to achieve a sufficient dwell time for the residual material GK + P + B on the sieve plate, it is also possible to dispense with the storage ledge 10 and for this purpose in FIG. 2 to use a sieve plate 11 with an upward inclination with respect to the plane of the inflow plate 3.
  • FIGS. 1 and 2 only allow the two coal components FK and GK to be separated from the bulk material mixture
  • the arrangement according to FIG. 3 enables the mixture P + B to be further separated into the individual components P and B.
  • two sieve trays 12 and 13 are arranged behind the inflow tray 3, which participate in the oscillating movement of the oscillating channel.
  • a sieve plate 16 adjoins the inflow plate 13, under which a further sieve plate 17 is arranged.
  • the order is made such that the throughput of the sieve plate 16 consists essentially of mountains and pyrite, while the throughput of the sieve plate 17 consists of a material with a high proportion of pyrite P.
  • the coarse coal GK is drawn off as residue from the sieve tray 16.
  • the hole size of the sieve bottom 16 is in the range of 0.8 - 1, 0 mm, while the hole size in the sieve plate 17 in the range of 0.5 - 0.8 mm is, z.
  • an oscillating floor 18 adjoins the inflow floor 3.
  • a wiper strip 19 is arranged at a distance from the oscillating floor 18.
  • the scraper 19 is arranged at a distance S from the vibrating base 18, which essentially corresponds to the layer thickness of the layer P + B which is established on the vibrating base.
  • a wedge-shaped scraper 21 extends above the oscillating floor, the tip of which is directed towards the inflow floor. This scraper pushes the coarse coal GK into two receiving pockets 22 arranged laterally on the shaking trough, with inlet edges 22 a raised relative to the vibrating floor.
  • the wiper 21 is provided with nozzles 21 a, which are acted upon by gas via a compressed gas supply line 21 b. The below the layer of pyrite P and mountains B passing through the stripper enters a trigger 23.
  • the distance between the scraper strip 19 and the scraper 21 from the vibrating floor can be changed depending on the coal quality.
  • FIG. 8 which shows a section transverse to the direction of vibration of the conveyor trough 1
  • Lateral scraper nozzles 24 lie approximately in the middle of the layer of coarse coal which arises during operation and drive the coarse coal GK into a receptacle 25 arranged on the other longitudinal side, while pyrite P and mountains B are conveyed perpendicular to the plane of the drawing. (It is also possible to use nozzles arranged in the middle and blowing on both long sides.)
  • sieve nets can of course also be used.
  • a horizontal vibrating trough can also be used as the vibrating trough.
  • the pneumatic wiper nozzles 21 a and 24 can be connected to the fluidizing gas source.
  • the grains of the coarse coal GK can consist essentially of pure coal and / or coal with adhesions.
  • more than two chambers 2 a and 2 b in the longitudinal direction of the channel are also possible in order to achieve a more uniform increase in the amount of fluidizing gas in the conveying direction of the residual material.

Landscapes

  • Combined Means For Separation Of Solids (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
EP82110239A 1981-12-09 1982-11-06 Procédé et dispositif pour séparer des matières en vrac suivant la densité Withdrawn EP0081087A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813148665 DE3148665A1 (de) 1981-12-09 1981-12-09 Verfahren und vorrichtung zur dichtetrennung eines schuettgutgemisches
DE3148665 1981-12-09

Publications (2)

Publication Number Publication Date
EP0081087A2 true EP0081087A2 (fr) 1983-06-15
EP0081087A3 EP0081087A3 (fr) 1984-09-05

Family

ID=6148222

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82110239A Withdrawn EP0081087A3 (fr) 1981-12-09 1982-11-06 Procédé et dispositif pour séparer des matières en vrac suivant la densité

Country Status (5)

Country Link
EP (1) EP0081087A3 (fr)
JP (1) JPS58104678A (fr)
AU (1) AU9062482A (fr)
DE (1) DE3148665A1 (fr)
ZA (1) ZA828582B (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2575680A1 (fr) * 1985-01-08 1986-07-11 Pechiney Aluminium Dispositif a lit fluidise pour la separation continue de deux phases solides melangees
DE4426502A1 (de) * 1994-07-27 1996-02-01 Noell Abfall & Energietech Schwingherd
WO1997014513A1 (fr) * 1995-10-19 1997-04-24 Ocrim S.P.A. Dispositif et appareil de tri et de separation de particules dans un procede de broyage de cereales
US6889842B2 (en) 2002-03-26 2005-05-10 Lewis M. Carter Manufacturing Co. Apparatus and method for dry beneficiation of coal
CN107909006A (zh) * 2017-10-27 2018-04-13 天津美腾科技有限公司 基于图像处理的高岭岩识别分选系统

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106607183B (zh) * 2017-02-09 2019-11-08 中国矿业大学 一种模块化高密度煤系油页岩提质工艺及提质系统

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB223280A (en) * 1923-06-21 1924-10-21 Rembrandt Peale Process and apparatus for separating intermixed divided materials of different specifc gravities
US2014249A (en) * 1930-11-21 1935-09-10 Peale Davis Company Method and apparatus for separating refuse from coal
DE1482449A1 (de) * 1962-09-29 1969-10-16 Miag Muehlenbau & Ind Gmbh Wirbelschichtrinne
FR2425279A1 (fr) * 1978-05-11 1979-12-07 Sosson Guy Procede et dispositif pour trier et classer des particules solides de matieres diverses de densites relativement voisines
DE2943556A1 (de) * 1979-10-27 1981-05-07 Steag Ag, 4300 Essen Verfahren und anlage zur trockenabscheidung von pyrit aus steinkohle
US4294693A (en) * 1980-12-08 1981-10-13 Brennan Ray A Air flotation ore enriching apparatus

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2575680A1 (fr) * 1985-01-08 1986-07-11 Pechiney Aluminium Dispositif a lit fluidise pour la separation continue de deux phases solides melangees
US4741443A (en) * 1985-01-08 1988-05-03 Aluminium Pechiney Fluidized bed for continuous separation of two mixed solid phases
EP0187730A3 (en) * 1985-01-08 1989-05-03 Aluminium Pechiney Fluidized-bed device for continuously separating two mixed solid phases
DE4426502A1 (de) * 1994-07-27 1996-02-01 Noell Abfall & Energietech Schwingherd
WO1997014513A1 (fr) * 1995-10-19 1997-04-24 Ocrim S.P.A. Dispositif et appareil de tri et de separation de particules dans un procede de broyage de cereales
US6889842B2 (en) 2002-03-26 2005-05-10 Lewis M. Carter Manufacturing Co. Apparatus and method for dry beneficiation of coal
CN107909006A (zh) * 2017-10-27 2018-04-13 天津美腾科技有限公司 基于图像处理的高岭岩识别分选系统

Also Published As

Publication number Publication date
DE3148665A1 (de) 1983-07-21
ZA828582B (en) 1983-10-26
EP0081087A3 (fr) 1984-09-05
AU9062482A (en) 1983-06-16
JPS58104678A (ja) 1983-06-22

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Inventor name: HANNES, KLAUS, DR.-ING.

Inventor name: SAETTLER, HEINZ, DIPL.-ING.