ATE73694T1 - PROCESS FOR FINE VISION AND DEVICE FOR CARRYING OUT THE PROCESS. - Google Patents

PROCESS FOR FINE VISION AND DEVICE FOR CARRYING OUT THE PROCESS.

Info

Publication number
ATE73694T1
ATE73694T1 AT89123623T AT89123623T ATE73694T1 AT E73694 T1 ATE73694 T1 AT E73694T1 AT 89123623 T AT89123623 T AT 89123623T AT 89123623 T AT89123623 T AT 89123623T AT E73694 T1 ATE73694 T1 AT E73694T1
Authority
AT
Austria
Prior art keywords
gas
drum
preaccelerated
fine
particles
Prior art date
Application number
AT89123623T
Other languages
German (de)
Inventor
Roland Nied
Original Assignee
Roland Nied
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
Priority claimed from DE19893915552 external-priority patent/DE3915552A1/en
Application filed by Roland Nied filed Critical Roland Nied
Application granted granted Critical
Publication of ATE73694T1 publication Critical patent/ATE73694T1/en

Links

Classifications

    • 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
    • B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
    • B07B7/08—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force
    • B07B7/083—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force generated by rotating vanes, discs, drums, or brushes

Landscapes

  • Combined Means For Separation Of Solids (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)

Abstract

The subject of the invention is a method of screening particle-shaped material with an extremely low mass in a gas stream which, originating from a mill, is introduced into a sifting drum (1) with a preferably vertical axis (2) and rotates in the latter. Under the effect of the centrifugal force which is formed, material particles from a specific mass upwards are separated out as coarse material whilst gas with particles of material with a lower mass, so called fine-grade material, is fed to a tubular material discharge (4) arranged concentrically with respect to the drum axis in order to pass into a filter where a separation into gas and fine-grade material occurs. The material/gas mixture introduced into the drum is initially preaccelerated mechanically to a specific circumferential speed and, subsequently, the preaccelerated material/gas mixture is accelerated to the final circumferential speed by means of high-speed gas jets additionally introduced approximately tangentially into the drum. <IMAGE>
AT89123623T 1988-12-27 1989-12-20 PROCESS FOR FINE VISION AND DEVICE FOR CARRYING OUT THE PROCESS. ATE73694T1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3844008 1988-12-27
DE19893915552 DE3915552A1 (en) 1989-05-12 1989-05-12 Fine sifting of light, granular material
EP89123623A EP0379711B1 (en) 1988-12-27 1989-12-20 Method of sifting fine materials, and apparatus for carrying out the method

Publications (1)

Publication Number Publication Date
ATE73694T1 true ATE73694T1 (en) 1992-04-15

Family

ID=25875734

Family Applications (1)

Application Number Title Priority Date Filing Date
AT89123623T ATE73694T1 (en) 1988-12-27 1989-12-20 PROCESS FOR FINE VISION AND DEVICE FOR CARRYING OUT THE PROCESS.

Country Status (4)

Country Link
EP (1) EP0379711B1 (en)
AT (1) ATE73694T1 (en)
DE (1) DE58900995D1 (en)
ES (1) ES2030258T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0694098A1 (en) * 1993-04-16 1996-01-31 FONGEN, Sigurd Means for filtering and fractionation of suspensions containing fibres, fibre fragments, fines and other particles

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE921970C (en) * 1952-02-21 1955-01-07 Basf Ag Grinding device
DE2651383A1 (en) * 1976-11-11 1978-05-18 Krauss Maffei Ag Centrifugal disc pneumatic classifier - has circumferential gap formed by cover through which are discharged centrally supplied material and air
DE3303078C1 (en) * 1983-01-29 1984-05-30 Alpine Ag, 8900 Augsburg Air classifier for the fine area

Also Published As

Publication number Publication date
DE58900995D1 (en) 1992-04-23
EP0379711A1 (en) 1990-08-01
EP0379711B1 (en) 1992-03-18
ES2030258T3 (en) 1992-10-16

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