EP0142181A1 - Fliehkraftabscheider - Google Patents

Fliehkraftabscheider Download PDF

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Publication number
EP0142181A1
EP0142181A1 EP84201282A EP84201282A EP0142181A1 EP 0142181 A1 EP0142181 A1 EP 0142181A1 EP 84201282 A EP84201282 A EP 84201282A EP 84201282 A EP84201282 A EP 84201282A EP 0142181 A1 EP0142181 A1 EP 0142181A1
Authority
EP
European Patent Office
Prior art keywords
gas
supply line
gas supply
wall part
wall
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.)
Withdrawn
Application number
EP84201282A
Other languages
German (de)
English (en)
French (fr)
Inventor
Jochim Eschenburg
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.)
GEA Group AG
Original Assignee
Metallgesellschaft 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 Metallgesellschaft AG filed Critical Metallgesellschaft AG
Publication of EP0142181A1 publication Critical patent/EP0142181A1/de
Withdrawn legal-status Critical Current

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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
    • B04C3/00—Apparatus in which the axial direction of the vortex flow following a screw-thread type line remains unchanged ; Devices in which one of the two discharge ducts returns centrally through the vortex chamber, a reverse-flow vortex being prevented by bulkheads in the central discharge duct
    • 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
    • B04C3/00—Apparatus in which the axial direction of the vortex flow following a screw-thread type line remains unchanged ; Devices in which one of the two discharge ducts returns centrally through the vortex chamber, a reverse-flow vortex being prevented by bulkheads in the central discharge duct
    • B04C3/04—Multiple arrangement thereof
    • 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
    • B04C3/00—Apparatus in which the axial direction of the vortex flow following a screw-thread type line remains unchanged ; Devices in which one of the two discharge ducts returns centrally through the vortex chamber, a reverse-flow vortex being prevented by bulkheads in the central discharge duct
    • B04C3/06—Construction of inlets or outlets to the vortex chamber

Definitions

  • the invention relates to a device for separating solid particles from a gas stream by means of centrifugal force and to the use of such devices in a system for multi-stage heat and / or mass transfer.
  • a generic device in which the gas stream moves downward in a helical separation zone and then upwards within the separation zone.
  • This device is characterized in that the gas feed line leads from the inside into an annular separation zone and has at least one passage channel for the gas flow in the area of the discharge zone.
  • the gas stream arriving vertically from below is first deflected horizontally / radially outwards, then tangentially, then downwards in a helical manner and finally inwards and upwards.
  • it is - at least according to the exemplary embodiments shown - divided into a plurality of sub-streams in order to achieve radially symmetrical separation ratios.
  • the object is to create a device of the generic type in which the flow losses are significantly reduced without the separation performance being impaired.
  • the gas supply line is closed at its upper end and has a channel in which a gas stream arriving vertically from below is deflected in a substantially horizontal and tangential direction to the gas line.
  • the proposed device has at least a 15% lower flow loss compared to conventional devices of this type. This is particularly advantageous if the devices according to claim 17 are used in a system for multi-stage heat and / or mass transfer. In these cases, due to the compact design, the heat losses due to radiation and better separation in the lower stages can be reduced by at least 10% and investment costs can be saved by 10 to 20%.
  • the separation efficiency is 85 to 95% and more, depending on the design.
  • the device according to the invention has the further advantage that it is structurally very simple, has no complicated components and does not force a division of the gas flow. Only with very large amounts of gas and correspondingly large cross sections of the gas supply line, it may be advisable to provide two channels for the gas outlet (Fig. 4).
  • the undivided gas flow has an advantageous effect not only during manufacture, but also during operation. Deposits of solid particles and wear on the device can be reduced to a minimum.
  • the device according to FIG. 1 consists of a vertically arranged, cylindrical housing 1, into which the gas supply line 2 projects from below and from which the gas outlet pipe 9 extends.
  • the gas feed line 2 is closed at its upper end and here has a channel 3 through which the gas stream arriving vertically from below is deflected in a horizontal direction tangential to the gas feed line 2, as indicated by arrows.
  • the channel 3 has a cylindrical vertical wall part 4, whose radius increases spirally in the direction of flow, as well as an upper and lower horizontal cover 6 and 7 between wall part 4 and gas supply line 2.
  • the wall 5 of the gas supply line 2 is completely or partially removed from the wall part 4.
  • the wall section 4 may extend from the beginning of the radial expansion over an angle of 150 to 300 0th Usually it will extend over an angle of 150 to 180 °.
  • the duct 3 can be designed in a particularly simple design if the wall part 4 is formed from the wall 5 of the gas feed line. The separated solid particles are discharged from the device via line 8.
  • the device according to the invention can be optimized for minimal flow loss or maximum separation performance by constructive modifications of the channel 3, depending on the application.
  • An improvement in the separation performance is achieved if the wall part 4 extends over an angle of 180 to 270 °, the wall 5 of the gas supply line 2 being only an angle of 150 to 180 ° away from the beginning of the radial expansion.
  • the operating data of the device according to the invention can be influenced in that the lower and upper horizontal cover either extends over the full length of the wall part 4 or that the lower cover extends only over part of the length of the wall part 4, for example over an angle extends from 150 to 180 °.
  • the free cross section of the cylindrical housing 1 is expediently 3 to 7 times as large as the free cross section of the gas feed line 2.
  • the outlet cross section of the channel 3 should be 0.6 to 1.2 times as large as the free cross section of the gas supply line.
  • a tapered veren is expediently gender outlet 11 provided between the cylindrical housing 1 and the upper gas outlet opening 10, a tapered veren is expediently gender outlet 11 provided between the cylindrical housing 1 and the upper gas outlet opening 10, a tapered veren is expediently gender outlet 11 provided between the cylindrical housing 1 and the upper gas outlet opening 10, a tapered veren is expediently gender outlet 11 provided between the cylindrical housing 1 and the upper gas outlet opening 10, a tapered veren is expediently gender outlet 11 provided.
  • the lower end of the housing 1 can be formed by an inclined flat wall 12, the angle of attack being based on the flow behavior of the solid particles.
  • the upper end 13 of the gas supply line 2 should be roof-shaped. Furthermore, it is advantageous if a deflection wall 14 is provided in the upper end of the gas supply line 2 in order to avoid eddies and thus flow losses.
  • the formation of the channel 3 gives the gas flow the swirl required to be able to separate the entrained solid particles by centrifugal force in the housing 1 towards the wall, from where they then sink under the influence of gravity, while the gas flow initially helical, then spiraling tapering path leaves the housing through the gas outlet opening 10. It is important that the gas flow does not receive any vertically downward movement component due to the constructive design of the channel 3, as a result of which the degree of flow deflection is restricted to the absolute minimum and the risk of absorption of already separated solid particles is excluded.
  • the gas flow described enables the desired high separation performance with the lowest possible flow losses.
  • FIG. 3 schematically shows the use of three devices according to the invention in a system for multi-stage heat and / or mass exchange between a gas stream and a stream of solid particles.
  • the gas outlet pipes of the respective lower device 15b, c are formed coaxially into the gas supply lines of the respective upper devices 15a, b and are provided below the devices 15a to c inlets 16a to c for introducing the solid particles into the gas supply lines 2.
  • the solid particles are introduced into the gas flow for the first time, while the inlets 16b and c are connected by a pipeline to the solid outlets of the devices 15a and b arranged above them.
  • the gas stream substantially freed from the solid particles leaves the plant through the gas outlet pipe of the uppermost device 15a, while the flow of solid particles is discharged from the solids outlet of the lowermost device 15c.
  • FIG. 4a and b show a device having two 18 ° 0 staggered Kanaälen 3 is shown. Otherwise, the construction and numbering correspond to FIG. 2a and b. This version is only suitable for very large gas flows and the correspondingly large diameter of the device.
  • the separators compared with one another both had a clear housing diameter of 0.45 m or a free cross section F 1 of 0.159 m 2.
  • the clear diameter of the gas feed line was 0.20 m
  • the free flow cross section F 2 was 0.0314 m 2 , which corresponds to a ratio F 1 to F 2 of just over 5.
  • the channel was formed at an angle of 200 ° from the beginning of the spiral expansion and had an upper and lower cover that was continuous over the entire area.
  • the selected embodiment achieved a separation area of at least 95%, which in the upper area even increased to close to 99%. Separation levels of approximately the same level are also achieved with the conventional cyclone, so that practically the same separation rates can be used as a basis for the curves shown in the diagram.
  • the diagram can also be seen that the device according to the invention with the same pressure loss of, for example, about 13 mbar instead of 20 with 36 m 3 / minute , can be operated with a throughput that is 30% higher.
  • the device according to the invention with the same pressure loss of, for example, about 13 mbar instead of 20 with 36 m 3 / minute , can be operated with a throughput that is 30% higher.

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  • Cyclones (AREA)
EP84201282A 1983-10-28 1984-09-07 Fliehkraftabscheider Withdrawn EP0142181A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833339063 DE3339063A1 (de) 1983-10-28 1983-10-28 Fliehkraftabscheider
DE3339063 1983-10-28

Publications (1)

Publication Number Publication Date
EP0142181A1 true EP0142181A1 (de) 1985-05-22

Family

ID=6212902

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84201282A Withdrawn EP0142181A1 (de) 1983-10-28 1984-09-07 Fliehkraftabscheider

Country Status (8)

Country Link
US (1) US4602924A (es)
EP (1) EP0142181A1 (es)
JP (1) JPS60110355A (es)
AU (1) AU3472884A (es)
DE (1) DE3339063A1 (es)
DK (1) DK514184A (es)
ES (1) ES293699Y (es)
ZA (1) ZA848345B (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0578140A1 (de) * 1992-07-09 1994-01-12 Krupp Polysius Ag Wärmetauscher mit Zyklonen mit nach unten herausgeführtem Tauchrohr

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8429933D0 (en) * 1984-11-27 1985-01-03 Coal Industry Patents Ltd Cyclone separator means
DE3545691C1 (de) * 1985-12-21 1987-01-29 Orenstein & Koppel Ag Vorrichtung zum Klassieren von staubfoermigen Schuettguetern
GB8805755D0 (en) * 1988-03-10 1988-04-07 Shell Int Research Apparatus for separation of solids from mixture of solids & fluid
DE19961550A1 (de) * 1999-12-20 2001-06-28 Reinz Dichtungs Gmbh Vorrichtung und Verfahren zur Nebelabscheidung sowie Verwendung der Vorrichtung
WO2002062496A1 (de) * 2001-02-05 2002-08-15 Waldner Laboreinrichtungen Gmbh & Co. Kg Vorrichtung zum regeln des luftvolumenstroms für einen laborabzug
US6485640B2 (en) * 2001-04-18 2002-11-26 Gary Fout Flow diverter and exhaust blower for vibrating screen separator assembly
US6739456B2 (en) 2002-06-03 2004-05-25 University Of Florida Research Foundation, Inc. Apparatus and methods for separating particles
JP4978875B2 (ja) * 2010-12-21 2012-07-18 有限会社吉工 サイクロン
CN114196531B (zh) * 2021-12-17 2023-01-10 江苏智农食品科技有限公司 一种谷物营养物质拆分的自动化设备以及使用方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE722041C (de) * 1935-05-30 1942-06-29 Metallgesellschaft Ag Rohrartige Vorrichtung zum Ausscheiden von Fluessigkeiten aus Gasen oder Gasgemischen durch Fliehkraft
US2449790A (en) * 1945-03-17 1948-09-21 Worthington Pump & Mach Corp Separator
US2823801A (en) * 1956-07-06 1958-02-18 Menzies Engineering Company Recovery of coal
CH411536A (de) * 1964-03-06 1966-04-15 Escher Wyss Ag Zum Abscheiden von staubförmigem bzw. körnigem Gut aus einem Gasstrom dienende Vorrichtung
US3957471A (en) * 1973-12-21 1976-05-18 Hoei Kogyo Kabushiki Kaisha Exhaust gas purifier

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2802280A (en) * 1954-10-13 1957-08-13 Smidth & Co As F L Heat-exchange apparatus including cyclone separators
DE1240374B (de) * 1966-03-03 1967-05-11 Westfalia Dinnendahl Groeppel Umluftsichter
US3643800A (en) * 1969-05-21 1972-02-22 Bo Gustav Emil Mansson Apparatus for separating solids in a whirling gaseous stream
US3670886A (en) * 1970-08-05 1972-06-20 Hosokawa Funtaikogaku Kenkyush Powder classifier
US3724176A (en) * 1971-05-19 1973-04-03 K Vishnevsky Device for heat treatment of finely dispersed material

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE722041C (de) * 1935-05-30 1942-06-29 Metallgesellschaft Ag Rohrartige Vorrichtung zum Ausscheiden von Fluessigkeiten aus Gasen oder Gasgemischen durch Fliehkraft
US2449790A (en) * 1945-03-17 1948-09-21 Worthington Pump & Mach Corp Separator
US2823801A (en) * 1956-07-06 1958-02-18 Menzies Engineering Company Recovery of coal
CH411536A (de) * 1964-03-06 1966-04-15 Escher Wyss Ag Zum Abscheiden von staubförmigem bzw. körnigem Gut aus einem Gasstrom dienende Vorrichtung
US3957471A (en) * 1973-12-21 1976-05-18 Hoei Kogyo Kabushiki Kaisha Exhaust gas purifier

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SOVIET INVENTIONS ILLUSTRATED, Derwent Publications Ltd., Section Chemical, Woche E45, Zusammenfassung Nr. 97140, 22.12.1982; & SU - A - 897 303 (KAZA CHEM. TECHN. INS.) 15.01.1982 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0578140A1 (de) * 1992-07-09 1994-01-12 Krupp Polysius Ag Wärmetauscher mit Zyklonen mit nach unten herausgeführtem Tauchrohr

Also Published As

Publication number Publication date
AU3472884A (en) 1985-05-02
ES293699U (es) 1986-09-16
DK514184D0 (da) 1984-10-26
DK514184A (da) 1985-04-29
US4602924A (en) 1986-07-29
ES293699Y (es) 1987-05-16
JPS60110355A (ja) 1985-06-15
DE3339063A1 (de) 1985-05-09
ZA848345B (en) 1986-06-25

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

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AK Designated contracting states

Designated state(s): AT BE DE FR GB IT LU NL SE

17P Request for examination filed

Effective date: 19850627

17Q First examination report despatched

Effective date: 19860324

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

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18W Application withdrawn

Withdrawal date: 19860722

RIN1 Information on inventor provided before grant (corrected)

Inventor name: ESCHENBURG, JOCHIM