EP0046049A1 - Cyclones - Google Patents

Cyclones Download PDF

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Publication number
EP0046049A1
EP0046049A1 EP81303562A EP81303562A EP0046049A1 EP 0046049 A1 EP0046049 A1 EP 0046049A1 EP 81303562 A EP81303562 A EP 81303562A EP 81303562 A EP81303562 A EP 81303562A EP 0046049 A1 EP0046049 A1 EP 0046049A1
Authority
EP
European Patent Office
Prior art keywords
cyclone
jet pump
constituted
nozzle
small diameter
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Withdrawn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
EP81303562A
Other languages
German (de)
English (en)
Inventor
Anthony Walby Wakefield
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.)
General Conveyors Ltd
Original Assignee
General Conveyors Ltd
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 General Conveyors Ltd filed Critical General Conveyors Ltd
Publication of EP0046049A1 publication Critical patent/EP0046049A1/fr
Withdrawn legal-status Critical Current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
    • B04C9/00—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks
    • 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
    • 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
    • B04C5/12—Construction of the overflow ducting, e.g. diffusing or spiral exits
    • B04C5/13—Construction of the overflow ducting, e.g. diffusing or spiral exits formed as a vortex finder and extending into the vortex chamber; Discharge from vortex finder otherwise than at the top of the cyclone; Devices for controlling the overflow
    • 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
    • B04C5/24—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
    • B04C9/00—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks
    • B04C2009/005—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks with external rotors, e.g. impeller, ventilator, fan, blower, pump

Definitions

  • the efficiency of the jet pump depends on the matching between the divergence ratio of the jet pump nozzle and the pressure into which the nozzle discharges.
  • stability of the pressure at the point at which the jet discharges is afforded as follows: When the flow to the cyclone is restricted the induced flow through the jet pump will be low so that the pressure depression in the jet pump will be high as a consequence thereof. Should the flow to the cyclone be unencumbered the induced flow will be high as a result of which the pressure depression over the profile will be high.
  • the matching of the internal profile of the vortex finder with the jet pump is merely a matter for calculation.

Landscapes

  • Cyclones (AREA)
  • Air Transport Of Granular Materials (AREA)
EP81303562A 1980-08-06 1981-08-04 Cyclones Withdrawn EP0046049A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA804784 1980-08-06
ZA804784 1980-08-06

Publications (1)

Publication Number Publication Date
EP0046049A1 true EP0046049A1 (fr) 1982-02-17

Family

ID=25574857

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81303562A Withdrawn EP0046049A1 (fr) 1980-08-06 1981-08-04 Cyclones

Country Status (4)

Country Link
EP (1) EP0046049A1 (fr)
JP (1) JPS57119861A (fr)
AU (1) AU7395181A (fr)
IL (1) IL63519A0 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2163071A (en) * 1982-03-04 1986-02-19 Noel Carroll Cyclone separator
CN108786356A (zh) * 2018-08-01 2018-11-13 成都理工大学 一种混合物料分离与降尘装置及其应用
US10596580B2 (en) 2016-04-15 2020-03-24 Layne Christensen Company Fluid separator device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1197946A (en) * 1913-05-02 1916-09-12 Frank Pardee Apparatus for separating coal, ore, &c.
US1421845A (en) * 1914-09-14 1922-07-04 Westinghouse Electric & Mfg Co Fluid-translating device
US2399249A (en) * 1944-10-24 1946-04-30 Gen Tank Service Inc Apparatus for the movement of viscous materials
FR1087702A (fr) * 1952-11-21 1955-02-28 Philips Nv Dispositif de séparation des particules contenues dans un gaz
US2941783A (en) * 1957-07-15 1960-06-21 Phillips Petroleum Co Hydraulic earth boring and cyclone separation system
DE2256678A1 (de) * 1972-11-18 1974-05-22 Koerting Ag Fliehkraftabscheider

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1197946A (en) * 1913-05-02 1916-09-12 Frank Pardee Apparatus for separating coal, ore, &c.
US1421845A (en) * 1914-09-14 1922-07-04 Westinghouse Electric & Mfg Co Fluid-translating device
US2399249A (en) * 1944-10-24 1946-04-30 Gen Tank Service Inc Apparatus for the movement of viscous materials
FR1087702A (fr) * 1952-11-21 1955-02-28 Philips Nv Dispositif de séparation des particules contenues dans un gaz
US2941783A (en) * 1957-07-15 1960-06-21 Phillips Petroleum Co Hydraulic earth boring and cyclone separation system
DE2256678A1 (de) * 1972-11-18 1974-05-22 Koerting Ag Fliehkraftabscheider

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2163071A (en) * 1982-03-04 1986-02-19 Noel Carroll Cyclone separator
US10596580B2 (en) 2016-04-15 2020-03-24 Layne Christensen Company Fluid separator device
US11338304B2 (en) 2016-04-15 2022-05-24 Kort Industries, Llc Fluid separator device
CN108786356A (zh) * 2018-08-01 2018-11-13 成都理工大学 一种混合物料分离与降尘装置及其应用
CN108786356B (zh) * 2018-08-01 2023-07-21 成都理工大学 一种混合物料分离与降尘装置及其应用

Also Published As

Publication number Publication date
IL63519A0 (en) 1981-11-30
AU7395181A (en) 1982-05-06
JPS57119861A (en) 1982-07-26

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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

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

17P Request for examination filed

Effective date: 19820726

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19840301

RIN1 Information on inventor provided before grant (corrected)

Inventor name: WAKEFIELD, ANTHONY WALBY