DK614886A - PROCEDURE FOR SUBSTANCE SAFETY AND SUBSTANCE SAFETY - Google Patents

PROCEDURE FOR SUBSTANCE SAFETY AND SUBSTANCE SAFETY

Info

Publication number
DK614886A
DK614886A DK614886A DK614886A DK614886A DK 614886 A DK614886 A DK 614886A DK 614886 A DK614886 A DK 614886A DK 614886 A DK614886 A DK 614886A DK 614886 A DK614886 A DK 614886A
Authority
DK
Denmark
Prior art keywords
centrifugal field
liquid
separation
coarse product
product
Prior art date
Application number
DK614886A
Other languages
Danish (da)
Other versions
DK163644C (en
DK614886D0 (en
DK163644B (en
Inventor
Pertti Ovaskainen
Original Assignee
Larox Ag
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 Larox Ag filed Critical Larox Ag
Publication of DK614886D0 publication Critical patent/DK614886D0/en
Publication of DK614886A publication Critical patent/DK614886A/en
Publication of DK163644B publication Critical patent/DK163644B/en
Application granted granted Critical
Publication of DK163644C publication Critical patent/DK163644C/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/14—Construction of the underflow ducting; Apex constructions; Discharge arrangements ; discharge through sidewall provided with a few slits or perforations
    • B04C5/18—Construction of the underflow ducting; Apex constructions; Discharge arrangements ; discharge through sidewall provided with a few slits or perforations with auxiliary fluid assisting discharge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C9/00—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks

Abstract

Method for hydraulic separation and device for this purpose, in which the particulate material carried by a liquid is divided up in a centrifugal field that is created in a cylindrical, essentially vertical separation chamber 1 into a fine product composed of lighter particles, the said product being separated out at the centre of the centrifugal field, and a coarse product composed of heavier particles, which are separated out in the outer area of the centrifugal field and go down into a spiral flow, which follows the outer area of the field to the bottom end of the separation chamber. As the invention discloses, the coarse product is removed from the centrifugal field through an annular opening 3, formed at the bottom end of the separation chamber 1, this being assisted by the use of a separate flow of liquid, which is delivered tangentially in relation to the centrifugal field and runs tangentially to the opening. The coarse product may be removed together with the flow of liquid to a hydrocyclone 10, which separates out the coarse product, following which the liquid can be returned to the separation process in order to serve as liquid medium in the separation that occurs in the centrifugal field. <IMAGE>
DK614886A 1985-05-03 1986-12-18 PROCEDURE FOR HYDRAULIC SEPARATION AND APPARATUS FOR EXERCISING THE PROCEDURE DK163644C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FI851763A FI80837C (en) 1985-05-03 1985-05-03 Hydraulic grading method and device
FI851763 1985-05-03
FI8600045 1986-05-05
PCT/FI1986/000045 WO1986006653A1 (en) 1985-05-03 1986-05-05 Hydraulic classifying procedure and means

Publications (4)

Publication Number Publication Date
DK614886D0 DK614886D0 (en) 1986-12-18
DK614886A true DK614886A (en) 1987-01-23
DK163644B DK163644B (en) 1992-03-23
DK163644C DK163644C (en) 1992-08-17

Family

ID=8520770

Family Applications (1)

Application Number Title Priority Date Filing Date
DK614886A DK163644C (en) 1985-05-03 1986-12-18 PROCEDURE FOR HYDRAULIC SEPARATION AND APPARATUS FOR EXERCISING THE PROCEDURE

Country Status (8)

Country Link
EP (1) EP0222803B1 (en)
JP (1) JPS62502735A (en)
AU (1) AU596592B2 (en)
DE (1) DE3665996D1 (en)
DK (1) DK163644C (en)
FI (1) FI80837C (en)
HU (1) HU198405B (en)
WO (1) WO1986006653A1 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8630999D0 (en) * 1986-12-30 1987-02-04 Coal Industry Patents Ltd Separation of granular solid material
JPH0525717Y2 (en) * 1987-04-06 1993-06-29
SE469279C (en) * 1988-07-08 1997-05-25 Nils Anders Lennart Wikdahl Methods and apparatus for releasing a fiber suspension from light impurities
US4927536A (en) * 1989-03-21 1990-05-22 Amoco Corporation Hydrocyclone separation system
US5180486A (en) * 1989-11-28 1993-01-19 Lsr Environmental Systems Company Potential flow centrifugal separator system for removing solid particulates from a fluid stream
CA2326298A1 (en) * 1999-11-18 2001-05-18 Jeremy Brett Bosman Dense medium cyclone separator
CN1688392B (en) * 2002-07-22 2010-06-23 Mba聚合物公司 Controlling media particle size in slurried dense media separations
JP2005262080A (en) * 2004-03-18 2005-09-29 Fukuma Manabu Cyclone device, preparatory revolving part used therefor, dust removing apparatus equipped with cyclone device and automobile
ITGE20110049A1 (en) * 2011-04-28 2012-10-29 Ecomin S R L METHOD AND EQUIPMENT FOR PARTICLE SEPARATION
ZA201304412B (en) * 2012-06-14 2015-06-24 Multotec Process Equipment (Pty) Ltd Centrifugal separator arrangement and method
CN106076672A (en) * 2016-08-12 2016-11-09 华东理工大学 Air-flowing type multi-product subparticle sequence clasfficiator
CN106269315B (en) * 2016-08-12 2019-01-01 华东理工大学 Inlet particle sequence type cyclone
CN109277212A (en) * 2018-11-25 2019-01-29 威海市海王旋流器有限公司 A kind of one section of underflow discharge device of three-product cyclone with on-line control function
CN114260108B (en) * 2021-12-27 2023-12-05 华北理工大学 Multi-inlet special-shaped cyclone

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2799208A (en) * 1955-04-29 1957-07-16 Scott Harold Eric Baliol Vortex type separators
BE544291A (en) * 1955-03-10 1900-01-01 Horace Freeman
CA954564A (en) * 1972-01-12 1974-09-10 Anthony R. Barringer Method and apparatus for transferrig particles from one fluid stream into another
GB8327218D0 (en) * 1983-10-12 1983-11-16 Beloit Corp Reject handling in cyclones &c

Also Published As

Publication number Publication date
FI80837B (en) 1990-04-30
HUT45925A (en) 1988-09-28
EP0222803B1 (en) 1989-10-04
FI851763A0 (en) 1985-05-03
HU198405B (en) 1989-10-30
FI851763L (en) 1986-11-04
EP0222803A1 (en) 1987-05-27
WO1986006653A1 (en) 1986-11-20
JPS62502735A (en) 1987-10-22
DK163644C (en) 1992-08-17
DK614886D0 (en) 1986-12-18
AU596592B2 (en) 1990-05-10
DK163644B (en) 1992-03-23
AU5864886A (en) 1986-12-04
DE3665996D1 (en) 1989-11-09
FI80837C (en) 1990-08-10

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