EP0972572A3 - High efficiency cyclones - Google Patents

High efficiency cyclones Download PDF

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Publication number
EP0972572A3
EP0972572A3 EP99670006A EP99670006A EP0972572A3 EP 0972572 A3 EP0972572 A3 EP 0972572A3 EP 99670006 A EP99670006 A EP 99670006A EP 99670006 A EP99670006 A EP 99670006A EP 0972572 A3 EP0972572 A3 EP 0972572A3
Authority
EP
European Patent Office
Prior art keywords
cyclones
diameter
flow
laboratory
geometries
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
Application number
EP99670006A
Other languages
German (de)
French (fr)
Other versions
EP0972572B1 (en
EP0972572A2 (en
Inventor
Romualdo Luis Ribera Salcedo
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0972572A2 publication Critical patent/EP0972572A2/en
Publication of EP0972572A3 publication Critical patent/EP0972572A3/en
Application granted granted Critical
Publication of EP0972572B1 publication Critical patent/EP0972572B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • B04C5/08—Vortex chamber constructions
    • B04C5/081—Shapes or dimensions

Landscapes

  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Cyclones (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The present invention concerns high efficiency reverse flow cyclones - with a tangential entry of essentially rectangular section, sides a and b, the first parallel to the cyclone axis; a body of height H, with an upper cylindrical section of diameter D and height h and a lower inverted cone with smaller base of diameter Db: and a cylindrical vortex finder of diameter De and length s - which may be used in laboratory or industrial conditions, whenever dedusting is needed. The inventor could obtain an empirical correlation to estimate particle turbulent diffusivities under cyclone flow, through the use of a finite diffusivity theory which was adjusted to laboratory, pilot-scale and industrial grade efficiency curves. This correlation allows the design of reverse-flow cyclones of arbitrary geometry, as a function of particle size distribution and operating conditions. A computer program was made to obtain optimum designed reverse-flow cyclones, and two geometries have been obtained, which respectively maximise collection efficiency and one ratio efficiency/costs. The proposed geometries, defined as ratios of the above mentioned dimensions to the cyclone inside diameter, differ from all geometries available in the literature, both being significantly more efficient. For flow rates typical of industrial multicyclones, the emissions should be 30-45% lower for the first family and 20-35% for the second, as compared with emissions from high efficiency cyclones available. Laboratory-scale tests with a similar geometry have confirmed the expected emissions reductions, at similar levels of pressure drop. <IMAGE>
EP99670006A 1998-06-08 1999-06-08 High efficiency cyclones Expired - Lifetime EP0972572B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PT102166A PT102166B (en) 1998-06-08 1998-06-08 HIGH EFFICIENCY CYCLES
PT10216698 1998-06-08

Publications (3)

Publication Number Publication Date
EP0972572A2 EP0972572A2 (en) 2000-01-19
EP0972572A3 true EP0972572A3 (en) 2001-03-14
EP0972572B1 EP0972572B1 (en) 2006-12-06

Family

ID=20085770

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99670006A Expired - Lifetime EP0972572B1 (en) 1998-06-08 1999-06-08 High efficiency cyclones

Country Status (5)

Country Link
EP (1) EP0972572B1 (en)
AT (1) ATE347448T1 (en)
DE (1) DE69934274T2 (en)
ES (1) ES2278433T3 (en)
PT (2) PT102166B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2003226488A1 (en) * 2002-03-19 2003-10-08 Bp Chemicals Limited Separation of gases and solids using a cyclone
DE60314852T2 (en) * 2002-03-19 2007-11-08 Ineos Europe Ltd., Lyndhurst CYCLONE FOR THE CENTRIFUGAL SEPARATION OF A MIXTURE OF GAS AND SOLID PARTICLES
DE102004054304A1 (en) 2004-11-09 2006-05-11 Basell Polyolefine Gmbh Device, for polymerizing olefins (e.g. ethylene), comprises gas phase fluidized bed reactor, product outlet pipe connected to back gas filter (having inlet and outlet chambers, flat filter medium and particle outlet) and compressor
DE102004054628A1 (en) * 2004-11-11 2006-05-18 Basell Polyolefine Gmbh Apparatus for polymerization of olefins e.g. ethylene comprises cyclone with effective separating height, and specific ratio of distance from lower end of tube to intersection of imaginary extension of wall of tube
BRPI0803051B1 (en) * 2008-06-30 2019-01-15 Petroleo Brasileiro S/A Petrobras gas-solid suspension cyclonic separator and separation method
IT1394230B1 (en) * 2009-05-15 2012-06-01 Repetti DEVICE FOR FILLING DUST IN COMBUSTION FUMES IN HOME STOVES
FR2988307B1 (en) 2012-03-26 2014-03-21 Coutier Moulage Gen Ind CYCLONE SEPARATOR
CN102658244A (en) * 2012-05-09 2012-09-12 王合 Cyclone dust collector and outer rotation quadruplet dust collector employing same
CN103785550B (en) * 2012-10-29 2017-03-01 中国石油化工股份有限公司 Air-flowing type particle sorter and fluidized-bed reactor and its application
PT107312B (en) * 2013-11-25 2022-05-10 Advanced Cyclone Systems S A INVERTED FLOW AGGLOMERATOR CYCLONE AND ITS PROCESS
DE202016102385U1 (en) 2016-05-04 2016-05-24 Outotec (Finland) Oy Cyclone and dip tube for the separation of particles from a gas

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0564992A2 (en) * 1992-04-10 1993-10-13 H KRANTZ-TKT GmbH Filter device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0564992A2 (en) * 1992-04-10 1993-10-13 H KRANTZ-TKT GmbH Filter device

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DIETZ P W: "ELECTROSTATICALLY ENHANCED CYCLONE SEPARATORS", POWDER TECHNOLOGY,CH,ELSEVIER SEQUOIA, LAUSANNE, vol. 31, no. 221, 1982, pages 221 - 226, XP000575779, ISSN: 0032-5910 *
MAROULIS Z B ET AL: "Development of an Effective Cyclone Simulator under Excel", FILTRATION AND SEPARATION,GB,CROYDON, vol. 32, no. 10, 12 November 1995 (1995-11-12), pages 969 - 976,968, XP004137497, ISSN: 0015-1882 *

Also Published As

Publication number Publication date
PT102166A (en) 1998-12-31
DE69934274D1 (en) 2007-01-18
PT972572E (en) 2007-03-30
PT102166B (en) 2000-03-31
ES2278433T3 (en) 2007-08-01
EP0972572B1 (en) 2006-12-06
DE69934274T2 (en) 2007-07-05
EP0972572A2 (en) 2000-01-19
ATE347448T1 (en) 2006-12-15

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