CA2327770A1 - Molten metal impeller - Google Patents

Molten metal impeller Download PDF

Info

Publication number
CA2327770A1
CA2327770A1 CA002327770A CA2327770A CA2327770A1 CA 2327770 A1 CA2327770 A1 CA 2327770A1 CA 002327770 A CA002327770 A CA 002327770A CA 2327770 A CA2327770 A CA 2327770A CA 2327770 A1 CA2327770 A1 CA 2327770A1
Authority
CA
Canada
Prior art keywords
passages
molten metal
impeller
cylindrical body
metal impeller
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
CA002327770A
Other languages
French (fr)
Other versions
CA2327770C (en
Inventor
Chris T. Vild
Mark A. Bright
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.)
Pyrotek Inc
Original Assignee
Metaullics Systems Co., L.P.
Chris T. Vild
Mark A. Bright
Pyrotek, Inc.
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 Metaullics Systems Co., L.P., Chris T. Vild, Mark A. Bright, Pyrotek, Inc. filed Critical Metaullics Systems Co., L.P.
Publication of CA2327770A1 publication Critical patent/CA2327770A1/en
Application granted granted Critical
Publication of CA2327770C publication Critical patent/CA2327770C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/2238—Special flow patterns
    • F04D29/2255—Special flow patterns flow-channels with a special cross-section contour, e.g. ejecting, throttling or diffusing effect
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/24—Vanes
    • F04D29/242—Geometry, shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
    • F04D7/06—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being hot or corrosive, e.g. liquid metals
    • F04D7/065—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being hot or corrosive, e.g. liquid metals for liquid metal

Abstract

An impeller (101) for a molten metal pump (32) has a cylindrical body (103) comprised of a refractory material. The cylindrical body includes generally coplanar top (105) and bottom surfaces. A central bore (111) is provided in the top surface to provide a point for mating with a shaft (109). A plurality of circumferentially spaced passages (115) extend from the top or bottom surface to a side wall (117) of the impeller, each of the passages being separate and preferably having an inlet opening which is equal to or less than the corresponding outlet opening in size. A recess (107) is optionally formed in the top or bottom surface, forming the initial inlet to the passages.
CA002327770A 1998-04-08 1999-04-08 Molten metal impeller Expired - Lifetime CA2327770C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/056,409 US6254340B1 (en) 1997-04-23 1998-04-08 Molten metal impeller
US09/056,409 1998-04-08
PCT/US1999/007705 WO1999051884A1 (en) 1998-04-08 1999-04-08 Molten metal impeller

Publications (2)

Publication Number Publication Date
CA2327770A1 true CA2327770A1 (en) 1999-10-14
CA2327770C CA2327770C (en) 2008-12-30

Family

ID=22004210

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002327770A Expired - Lifetime CA2327770C (en) 1998-04-08 1999-04-08 Molten metal impeller

Country Status (4)

Country Link
US (2) US6254340B1 (en)
EP (1) EP1070204B1 (en)
CA (1) CA2327770C (en)
WO (1) WO1999051884A1 (en)

Families Citing this family (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6254340B1 (en) * 1997-04-23 2001-07-03 Metaullics Systems Co., L.P. Molten metal impeller
US6457940B1 (en) * 1999-07-23 2002-10-01 Dale T. Lehman Molten metal pump
US6837678B1 (en) 2000-05-27 2005-01-04 Dale T. Lehman Molten metal pump impeller
US6468039B1 (en) * 2000-05-27 2002-10-22 Dale T. Lehman Molten metal pump impeller
US6375422B1 (en) * 2000-07-28 2002-04-23 Bechtel Bwxt Idaho, Llc Apparatus for pumping liquids at or below the boiling point
US6524066B2 (en) * 2001-01-31 2003-02-25 Bruno H. Thut Impeller for molten metal pump with reduced clogging
US20050013715A1 (en) 2003-07-14 2005-01-20 Cooper Paul V. System for releasing gas into molten metal
US7731891B2 (en) 2002-07-12 2010-06-08 Cooper Paul V Couplings for molten metal devices
US7402276B2 (en) 2003-07-14 2008-07-22 Cooper Paul V Pump with rotating inlet
US20070253807A1 (en) 2006-04-28 2007-11-01 Cooper Paul V Gas-transfer foot
US7470392B2 (en) 2003-07-14 2008-12-30 Cooper Paul V Molten metal pump components
US6918741B2 (en) * 2002-11-15 2005-07-19 Pyrotek, Inc. Molten metal pump impeller system
US7906068B2 (en) 2003-07-14 2011-03-15 Cooper Paul V Support post system for molten metal pump
ES2620735T3 (en) 2004-07-07 2017-06-29 Pyrotek Inc. Molten metal pump
CA2528757A1 (en) * 2004-12-02 2006-06-02 Bruno H. Thut Gas mixing and dispersement in pumps for pumping molten metal
US7497988B2 (en) * 2005-01-27 2009-03-03 Thut Bruno H Vortexer apparatus
US7507365B2 (en) * 2005-03-07 2009-03-24 Thut Bruno H Multi functional pump for pumping molten metal
US7326028B2 (en) * 2005-04-28 2008-02-05 Morando Jorge A High flow/dual inducer/high efficiency impeller for liquid applications including molten metal
PL1768233T3 (en) * 2005-09-24 2010-12-31 Grundfos Management As Airgap sleeve
US9151331B2 (en) 2006-09-22 2015-10-06 Pyrotek, Inc. Heat break coupling
US7534284B2 (en) * 2007-03-27 2009-05-19 Bruno Thut Flux injection with pump for pumping molten metal
US8366993B2 (en) 2007-06-21 2013-02-05 Cooper Paul V System and method for degassing molten metal
US9409232B2 (en) 2007-06-21 2016-08-09 Molten Metal Equipment Innovations, Llc Molten metal transfer vessel and method of construction
US9156087B2 (en) 2007-06-21 2015-10-13 Molten Metal Equipment Innovations, Llc Molten metal transfer system and rotor
US9410744B2 (en) 2010-05-12 2016-08-09 Molten Metal Equipment Innovations, Llc Vessel transfer insert and system
US8337746B2 (en) 2007-06-21 2012-12-25 Cooper Paul V Transferring molten metal from one structure to another
US9643247B2 (en) 2007-06-21 2017-05-09 Molten Metal Equipment Innovations, Llc Molten metal transfer and degassing system
US9205490B2 (en) 2007-06-21 2015-12-08 Molten Metal Equipment Innovations, Llc Transfer well system and method for making same
US8613884B2 (en) 2007-06-21 2013-12-24 Paul V. Cooper Launder transfer insert and system
US8524146B2 (en) 2009-08-07 2013-09-03 Paul V. Cooper Rotary degassers and components therefor
US10428821B2 (en) 2009-08-07 2019-10-01 Molten Metal Equipment Innovations, Llc Quick submergence molten metal pump
US8444911B2 (en) 2009-08-07 2013-05-21 Paul V. Cooper Shaft and post tensioning device
US8449814B2 (en) 2009-08-07 2013-05-28 Paul V. Cooper Systems and methods for melting scrap metal
US8535603B2 (en) 2009-08-07 2013-09-17 Paul V. Cooper Rotary degasser and rotor therefor
US8714914B2 (en) 2009-09-08 2014-05-06 Paul V. Cooper Molten metal pump filter
US9108244B2 (en) 2009-09-09 2015-08-18 Paul V. Cooper Immersion heater for molten metal
PL216284B1 (en) * 2010-03-22 2014-03-31 Fundacja Rozwoju Kardiochirurgii Im Prof Zbigniewa Religi Single-jet centrifugal pump
ES2912553T3 (en) * 2011-04-18 2022-05-26 Pyrotek Inc mold pump assembly
US9920992B2 (en) 2012-04-16 2018-03-20 Pyrotek, Inc. Molten metal scrap submergence apparatus
US9903383B2 (en) 2013-03-13 2018-02-27 Molten Metal Equipment Innovations, Llc Molten metal rotor with hardened top
US9011761B2 (en) 2013-03-14 2015-04-21 Paul V. Cooper Ladle with transfer conduit
US10052688B2 (en) 2013-03-15 2018-08-21 Molten Metal Equipment Innovations, Llc Transfer pump launder system
US10465688B2 (en) 2014-07-02 2019-11-05 Molten Metal Equipment Innovations, Llc Coupling and rotor shaft for molten metal devices
US10947980B2 (en) 2015-02-02 2021-03-16 Molten Metal Equipment Innovations, Llc Molten metal rotor with hardened blade tips
WO2017112726A1 (en) * 2015-12-21 2017-06-29 Greer Karl E Post mounting assembly and method for molten metal pump
US10267314B2 (en) 2016-01-13 2019-04-23 Molten Metal Equipment Innovations, Llc Tensioned support shaft and other molten metal devices
CA3031938A1 (en) 2016-07-25 2018-02-01 Pyrotek, Inc. Open exit molten metal gas injection pump
US11149747B2 (en) 2017-11-17 2021-10-19 Molten Metal Equipment Innovations, Llc Tensioned support post and other molten metal devices
JP7004595B2 (en) * 2018-03-09 2022-01-21 三菱重工業株式会社 Impellers, centrifugal compressors, and gas turbines
US11471938B2 (en) 2019-05-17 2022-10-18 Molten Metal Equipment Innovations, Llc Smart molten metal pump
US11873845B2 (en) 2021-05-28 2024-01-16 Molten Metal Equipment Innovations, Llc Molten metal transfer device
WO2024010786A1 (en) * 2022-07-05 2024-01-11 Pyrotek, Inc. Molten metal impeller with rock guard

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1865918A (en) 1928-06-30 1932-07-05 Junkers Hugo Impeller and method of making same
GB426056A (en) * 1933-09-27 1935-03-27 Edgar Beverley Fenby Improvements in centrifugal pumps
US2320663A (en) * 1939-06-06 1943-06-01 Schultz Erich Centrifugal impeller
US2276404A (en) * 1939-10-10 1942-03-17 Wright Aeronautical Corp Shrouded impeller
GB574079A (en) 1944-02-18 1945-12-19 F W Brackett & Company Ltd A new or improved centrifugal pump
US2472412A (en) * 1947-03-14 1949-06-07 Walter B Fritz Impeller for centrifugal force pumps
DE897801C (en) * 1949-09-04 1953-11-23 Pleuger Kommanditgesellschaft Impeller for centrifugal pumps
GB691656A (en) * 1951-07-10 1953-05-20 Sulzer Ag Improvements relating to rotors for centrifugal pumps
GB789674A (en) 1954-12-03 1958-01-29 Plessey Co Ltd Improvements in or relating to impellers
US2948524A (en) 1957-02-18 1960-08-09 Metal Pumping Services Inc Pump for molten metal
US3048384A (en) * 1959-12-08 1962-08-07 Metal Pumping Services Inc Pump for molten metal
SU687262A1 (en) * 1977-09-22 1979-09-25 Башкирский государственный научно-исследовательский и проектный институт нефтяной промышленности Pump runner
FR2512067B1 (en) * 1981-08-28 1986-02-07 Pechiney Aluminium ROTARY GAS DISPERSION DEVICE FOR THE TREATMENT OF A LIQUID METAL BATH
US5088893A (en) 1989-02-24 1992-02-18 The Carborundum Company Molten metal pump
US5078572A (en) 1990-01-19 1992-01-07 The Carborundum Company Molten metal pump with filter
US5180280A (en) 1990-05-28 1993-01-19 Toshiharu Honda Centrifugal pump
US5203681C1 (en) 1991-08-21 2001-11-06 Molten Metal Equipment Innovat Submersible molten metal pump
CA2097648C (en) 1992-06-12 1998-04-28 Ronald E. Gilbert Molton metal pump with vaned impeller and flow directing pumping chamber
US5308045A (en) 1992-09-04 1994-05-03 Cooper Paul V Scrap melter impeller
US5540550A (en) * 1994-01-21 1996-07-30 Nikkiso Co., Ltd. Solid impeller for centrifugal pumps
CA2222812C (en) * 1996-04-23 2003-06-24 Metaullics Systems Co., L.P. Molten metal impeller
US6254340B1 (en) * 1997-04-23 2001-07-03 Metaullics Systems Co., L.P. Molten metal impeller

Also Published As

Publication number Publication date
CA2327770C (en) 2008-12-30
EP1070204A4 (en) 2006-02-08
US6254340B1 (en) 2001-07-03
WO1999051884A1 (en) 1999-10-14
US20010028846A1 (en) 2001-10-11
EP1070204A1 (en) 2001-01-24
US6464458B2 (en) 2002-10-15
EP1070204B1 (en) 2016-09-14

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MKEX Expiry

Effective date: 20190408