DK0978328T3 - Method and apparatus for operating an air jet screen for grain size analysis - Google Patents

Method and apparatus for operating an air jet screen for grain size analysis

Info

Publication number
DK0978328T3
DK0978328T3 DK99112764T DK99112764T DK0978328T3 DK 0978328 T3 DK0978328 T3 DK 0978328T3 DK 99112764 T DK99112764 T DK 99112764T DK 99112764 T DK99112764 T DK 99112764T DK 0978328 T3 DK0978328 T3 DK 0978328T3
Authority
DK
Denmark
Prior art keywords
air jet
operating
grain size
size analysis
sieve
Prior art date
Application number
DK99112764T
Other languages
Danish (da)
Inventor
Hans Dipl-Ing Fh Kaiser
Dieter Dr-Ing Schwechten
Original Assignee
Hosokawa Alpine Ag & Co
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 Hosokawa Alpine Ag & Co filed Critical Hosokawa Alpine Ag & Co
Application granted granted Critical
Publication of DK0978328T3 publication Critical patent/DK0978328T3/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
    • B07B4/00—Separating solids from solids by subjecting their mixture to gas currents
    • B07B4/08—Separating solids from solids by subjecting their mixture to gas currents while the mixtures are supported by sieves, screens, or like mechanical elements
    • 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
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • 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
    • B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
    • B07B11/04—Control arrangements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/02—Investigating particle size or size distribution
    • G01N15/0272—Investigating particle size or size distribution with screening; with classification by filtering

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Drying Of Solid Materials (AREA)
  • Sorting Of Articles (AREA)

Abstract

The method has a slit jet rotated about a vertical central axis of the selected sieve beneath the sieve base (6) and supplied with air, which is extracted at a regulated suction pressure, according to the mesh size of the sieve, the sample material characteristics or the application field of the sample material. An independent claim is also included for an air jet sifting device.
DK99112764T 1998-07-04 1999-07-01 Method and apparatus for operating an air jet screen for grain size analysis DK0978328T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19830050A DE19830050A1 (en) 1998-07-04 1998-07-04 Operating method for air jet sifting device for particle size analysis

Publications (1)

Publication Number Publication Date
DK0978328T3 true DK0978328T3 (en) 2003-02-10

Family

ID=7873068

Family Applications (1)

Application Number Title Priority Date Filing Date
DK99112764T DK0978328T3 (en) 1998-07-04 1999-07-01 Method and apparatus for operating an air jet screen for grain size analysis

Country Status (5)

Country Link
EP (1) EP0978328B1 (en)
AT (1) ATE230311T1 (en)
DE (2) DE19830050A1 (en)
DK (1) DK0978328T3 (en)
ES (1) ES2188067T3 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007021004B3 (en) * 2007-05-04 2008-05-15 Rhewum Gmbh Sieving machine for separating bulk goods, has fine goods dispensing part i.e. fine goods funnel, provided, and cross-flow separator integrated in fine goods dispensing part, where fine goods are de-dusted by cross-flow separator
DE102010015364B4 (en) * 2010-04-17 2013-06-27 Hosokawa Alpine Ag Air Jet Sieve
DE102010018600B4 (en) * 2010-04-27 2016-09-15 Hosokawa Alpine Ag Air Jet Sieve
DE102010053821A1 (en) * 2010-12-08 2012-06-14 Hosokawa Alpine Ag Method for operating a screening machine for particle size analysis
CA2940058C (en) 2014-02-20 2021-09-14 Grainfrac Inc. System and method for fractionating grain

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4339834A1 (en) * 1993-11-23 1995-05-24 Rheinische Werkzeug & Maschf Method and device for grain size analysis in the fine and fine grain range
DE9408953U1 (en) * 1994-06-01 1994-08-04 Hosokawa Alpine Ag, 86199 Augsburg Air jet sieve with integrated scale

Also Published As

Publication number Publication date
DE19830050A1 (en) 2000-01-13
EP0978328A3 (en) 2001-12-19
EP0978328A2 (en) 2000-02-09
ATE230311T1 (en) 2003-01-15
ES2188067T3 (en) 2003-06-16
EP0978328B1 (en) 2003-01-02
DE59903898D1 (en) 2003-02-06

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