EP0972572A2 - Hocheffiziente Zyklone - Google Patents

Hocheffiziente Zyklone Download PDF

Info

Publication number
EP0972572A2
EP0972572A2 EP99670006A EP99670006A EP0972572A2 EP 0972572 A2 EP0972572 A2 EP 0972572A2 EP 99670006 A EP99670006 A EP 99670006A EP 99670006 A EP99670006 A EP 99670006A EP 0972572 A2 EP0972572 A2 EP 0972572A2
Authority
EP
European Patent Office
Prior art keywords
cyclone
diameter
cyclones
geometries
height
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
English (en)
French (fr)
Other versions
EP0972572A3 (de
EP0972572B1 (de
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/de
Publication of EP0972572A3 publication Critical patent/EP0972572A3/de
Application granted granted Critical
Publication of EP0972572B1 publication Critical patent/EP0972572B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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

Definitions

  • the present invention concerning cyclones, fits into the technical area of dedusting equipment.
  • cyclones are dedusters employed in a variety of industries, with two complementary objectives: dust removal from gases emitted from industrial processes, before release to the atmosphere (e.g. flue gas cleaning), and dust recovery of raw materials used in various processes (e.g. wood, cork, ferrous and non-ferrous industries).
  • Industrial cyclones are of various types, but the most widely used are reverse-flow cyclones, such as shown in Fig.1.
  • the gas enters through the rectangular section ab and describes a descending spiral, eventually changing the direction of movement due to the established pressure field (thus the name 'reverse-flow') exiting through the vortex finder of length s and diameter D e .
  • the heavier (larger or denser) particles are swept to the cyclone wall and end up in the cyclone bottom, where they are separated from the gas.
  • Pe A.Re B
  • ( A,B ) are two appropriate constants
  • Pe is the non-dimensional Peclet number, which depends on the particles' turbulent diffusivity
  • Re is the non-dimensional Reynolds number, which depends on cyclone geometry and operating conditions.
  • the operating conditions when coupled to the ML theory and to the cyclone geometry, give the corresponding value for Re. From correlation (1), the value of Pe is then obtained, which then gives directly the corresponding value for the particles' turbulent diffusivity.
  • a computer program was developed to optimise the cyclone geometry, based on two distinct criteria: maximum efficiency and maximum ratio efficiency/costs.
  • the investment and operating costs were estimated by maximising a non-dimensional parameter K Licht , proposed by Licht (1980).
  • the computer program uses the ML theory with the estimated diffusivity obtained from correlation (1), and optimises the cyclone geometry using a non-linear optimiser available (Salcedo, 1992).
  • Several constraints were imposed on the optimisation, such as geometric criteria, to obtain feasible cyclones, and maximum pressure drop criteria, to obtain cost effective designs.
  • the maximum pressure drop was set at 1500 Pa ( ⁇ 150mm w.g.), as these are usual values in high-efficiency cyclones for industrial applications.
  • optimised designs correspond to cyclones where saltation is small or absent (emission to the atmosphere of reentrained particles).
  • the optimised designs should have collection efficiencies close to the design targets.
  • High efficiency reverse flow cyclones as per the invention which comprise a tangential entry of essentially rectangular section, of sides a and b , the first parallel to the cyclone axis, as well as a body of height H, with an upper cylindrical body of diameter D and height h, with a lower inverted cone with bottom base of diameter D b , as well as a cylindrical vortex finder of diameter D e and length s - with geometries obtained as described above, are characterised, respectively for both geometries A or B (the first relative to maximum efficiency cyclones and the second to cyclones with a maximum value for the parameter K Licht , e.g., the ratio efficiency/cost) as having the aforementioned sides, heights and diameters interrelated so that the ratios of the corresponding internal dimensions to the cyclone internal diameter are between the non-dimensional values listed in the first seven lines of Table 1.
  • Table 2 shows the same ratios as given in table 1, for various known geometries.
  • cyclone A has all the ratios of the seven key dimensions different from all other cyclones, except in three cases, where, even so, the differences are enormous since only one ratio is common to some other geometry, while the six remainder are all different.
  • cyclone B the situation, in number, is exactly the same.
  • cyclone B relative to cyclone A is characterised by a common trait for the both first three ratios and the last ratio of the key dimensions, since the interval limits for cyclone B are within the interval limits for cyclone A. Furthermore, since the first two ratios are identical, for each cyclone type, this shows that the two geometries share some common gas entry characteristics.
  • the present patent request refers to two reverse-flow cyclone geometries, which were optimised by computer, with geometrical characteristics very different from cyclones available in the marketplace and being both significantly more efficient. Cyclone A is the most efficient while cyclone B, with a somewhat lower efficiency, has also correspondingly lower pressure losses and investment and operating costs.
  • Figure 3 shows the behaviour of two minicyclones, respectively cyclone A, and the other, cyclone 3 as referred.
  • This figure shows the experimental grade efficiencies (shown by white dots for cyclone A and by black dots for cyclone 3), and also, for both cyclones, the expected grade efficiencies from the ML theory when coupled with the estimates of turbulent diffusivity given by correlation (1). These are represented by a discontinuous curve for cyclone A and by a continuous curve for cyclone 3.
  • the test dust is ultra fine, since it has a mean mass diameter of 1.37 ⁇ m (it is the mass distribution that matters since the emission legal limits refers to dust concentration on a mass basis).
  • the global efficiencies which are weighted averages of the grade efficiencies taking into account the particle size distribution, were respectively of 38% and 55% for cyclones 3 and A, viz. the penetration through the optimised cyclone was 27% lower in comparison with the Stairmand HE cyclone.
  • optimised geometries may significantly reduce the penetrations in comparison with other high efficiency designs, at comparable pressure drop and saltation (reentrainment) effects.
  • Salcedo, R.L. and A.M. Fonseca 'Grade-efficiencies and particle size distributions from sampling cyclones', Mixed-Flow Hydrodynamics, Cap. 23, 539-561, P. Cheremisinoff (ed.), Gulf Publishers, 1996.

Landscapes

  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Cyclones (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
EP99670006A 1998-06-08 1999-06-08 Hocheffiziente Zyklone Expired - Lifetime EP0972572B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PT102166A PT102166B (pt) 1998-06-08 1998-06-08 Ciclones de elevada eficiencia
PT10216698 1998-06-08

Publications (3)

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

Family

ID=20085770

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99670006A Expired - Lifetime EP0972572B1 (de) 1998-06-08 1999-06-08 Hocheffiziente Zyklone

Country Status (5)

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

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003080252A1 (en) * 2002-03-19 2003-10-02 Bp Chemicals Limited Separation of gases and solids using a cyclone
WO2003080253A1 (en) * 2002-03-19 2003-10-02 Bp Chemicals Limited Separation of gases and solids using a cyclone
WO2006050919A1 (en) * 2004-11-11 2006-05-18 Basell Polyolefine Gmbh Apparatus for the gas-phase polymerization of olefins, in particular ethylene
US7776278B2 (en) 2004-11-09 2010-08-17 Basell Polyolefine Gmbh Apparatus and process for the gas-phase polymerization of olefins
ITPD20090139A1 (it) * 2009-05-15 2010-11-16 Enrico Pirollo Dispositivo per l'abbattimento delle polveri nei fumi di combustione in stufe domestiche
CN102658244A (zh) * 2012-05-09 2012-09-12 王合 旋风除尘器和使用该旋风除尘器的外旋四联体除尘器
WO2013144484A1 (fr) 2012-03-26 2013-10-03 Mgi Coutier Séparateur à cyclone
CN103785550A (zh) * 2012-10-29 2014-05-14 中国石油化工股份有限公司 气流式颗粒分选器和流化床反应器及其应用
WO2015075702A1 (pt) 2013-11-25 2015-05-28 Advanced Cyclone Systems, S.A. Ciclone aglomerador do tipo de fluxo invertido
DE202016102385U1 (de) 2016-05-04 2016-05-24 Outotec (Finland) Oy Zyklon und Tauchrohr zur Separation von Partikeln aus einem Gas

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BRPI0803051B1 (pt) * 2008-06-30 2019-01-15 Petroleo Brasileiro S/A Petrobras separador ciclônico de suspensão gás-sólido e método de separação

Citations (1)

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

Patent Citations (1)

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

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 *

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003080253A1 (en) * 2002-03-19 2003-10-02 Bp Chemicals Limited Separation of gases and solids using a cyclone
JP2005520685A (ja) * 2002-03-19 2005-07-14 ビーピー　ケミカルズ　リミテッド サイクロンを使用するガスと固形物との分離
WO2003080252A1 (en) * 2002-03-19 2003-10-02 Bp Chemicals Limited Separation of gases and solids using a cyclone
CN1304120C (zh) * 2002-03-19 2007-03-14 英国石油化学品有限公司 使用旋风分离器的气固分离
US7323038B2 (en) 2002-03-19 2008-01-29 Ineos Europe Limited Separation of gases and solids using a cyclone
KR100916732B1 (ko) * 2002-03-19 2009-09-14 이네오스 유럽 리미티드 사이클론을 사용한 가스 및 고형물의 분리
US7776278B2 (en) 2004-11-09 2010-08-17 Basell Polyolefine Gmbh Apparatus and process for the gas-phase polymerization of olefins
US7781544B2 (en) 2004-11-11 2010-08-24 Basell Polyolefine Gmbh Apparatus for the gas-phase polymerization of olefins, in particular ethylene
WO2006050919A1 (en) * 2004-11-11 2006-05-18 Basell Polyolefine Gmbh Apparatus for the gas-phase polymerization of olefins, in particular ethylene
ITPD20090139A1 (it) * 2009-05-15 2010-11-16 Enrico Pirollo Dispositivo per l'abbattimento delle polveri nei fumi di combustione in stufe domestiche
WO2013144484A1 (fr) 2012-03-26 2013-10-03 Mgi Coutier Séparateur à cyclone
CN102658244A (zh) * 2012-05-09 2012-09-12 王合 旋风除尘器和使用该旋风除尘器的外旋四联体除尘器
CN103785550A (zh) * 2012-10-29 2014-05-14 中国石油化工股份有限公司 气流式颗粒分选器和流化床反应器及其应用
WO2015075702A1 (pt) 2013-11-25 2015-05-28 Advanced Cyclone Systems, S.A. Ciclone aglomerador do tipo de fluxo invertido
JP2016538126A (ja) * 2013-11-25 2016-12-08 アドバンスド・サイクロン・システムズ・エシ・アー 逆流型の凝集サイクロン
CN106457266A (zh) * 2013-11-25 2017-02-22 先进气旋系统股份有限公司 回流式附聚旋风器
DE202016102385U1 (de) 2016-05-04 2016-05-24 Outotec (Finland) Oy Zyklon und Tauchrohr zur Separation von Partikeln aus einem Gas
WO2017191242A1 (en) 2016-05-04 2017-11-09 Outotec (Finland) Oy Cyclone and dip tube for separating a gas

Also Published As

Publication number Publication date
PT102166A (pt) 1998-12-31
DE69934274T2 (de) 2007-07-05
ATE347448T1 (de) 2006-12-15
EP0972572A3 (de) 2001-03-14
EP0972572B1 (de) 2006-12-06
PT102166B (pt) 2000-03-31
PT972572E (pt) 2007-03-30
DE69934274D1 (de) 2007-01-18
ES2278433T3 (es) 2007-08-01

Similar Documents

Publication Publication Date Title
EP0972572A2 (de) Hocheffiziente Zyklone
Svarovsky Solid—Gas Separation
Cortes et al. Modeling the gas and particle flow inside cyclone separators
Yoshida et al. Effect of apex cone height on particle classification performance of a cyclone separator
RU2708597C2 (ru) Усовершенствованные сепараторы с вихревыми трубами
CA2931607C (en) Agglomerating collector cyclone of the reverse-flow type, de-dusting method and their use
US20110308437A1 (en) External pulverized coal classifier
Huard et al. A review of rapid gas-solid separation techniques
Tan et al. Effects of geometrical parameters on the pressure drop for a modified cyclone separator
JP4676182B2 (ja) サイクロン装置
WO2019244134A1 (en) Dense medium cyclone for near gravity coal fraction separation
Svarovsky Hydrocyclones
Gawali et al. Effect of design and the operating parameters on the performance of cyclone separator-a review
Stefanenko et al. Mathematical model of dust collection process in apparatus with counter-swirling flows in aspiration systems
RU2260476C1 (ru) Пылеуловитель
Hussein et al. Configuration of a newly optimized multi-cyclones unit as a fine particulate emission separator in air pollution control
Dhodapkar et al. Harnessing the Power of a CYCLONE.
Hashemi A mathematical model to compare the efficiency of cyclones
RU2797588C1 (ru) Циклон
Okedere et al. Usefulness of particulate cyclone in air pollution control
Alahmer et al. Modeling and simulation study to predict the cement portland cyclone separator performance
Abdel-Hadi Effect of cyclone inlet velocity and vortex finder height on coarse wheat bran dust separation
Ng Gas-liquid separation using axial flow cyclones.
Vasilevskiy et al. Parameters of flow in cyclonic elements of separator battery
JPS58174256A (ja) 遠心集塵器

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

AKX Designation fees paid
17P Request for examination filed

Effective date: 20010914

RBV Designated contracting states (corrected)

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC

RBV Designated contracting states (corrected)

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI NL PT SE

REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI NL PT SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061206

Ref country code: LI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061206

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061206

Ref country code: CH

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061206

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061206

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061206

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 69934274

Country of ref document: DE

Date of ref document: 20070118

Kind code of ref document: P

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070306

REG Reference to a national code

Ref country code: PT

Ref legal event code: SC4A

Free format text: AVAILABILITY OF NATIONAL TRANSLATION

Effective date: 20070306

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2278433

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20070907

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20070608

REG Reference to a national code

Ref country code: GB

Ref legal event code: 728V

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070307

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070608

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070608

REG Reference to a national code

Ref country code: GB

Ref legal event code: S28

Effective date: 20080717

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070306

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 18

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20170622

Year of fee payment: 19

Ref country code: GB

Payment date: 20170623

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20170613

Year of fee payment: 19

Ref country code: PT

Payment date: 20170606

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20170807

Year of fee payment: 19

Ref country code: DE

Payment date: 20170728

Year of fee payment: 19

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 69934274

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181210

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20180608

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180630

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190101

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180608

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180608

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20190916

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180609