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WO2008038306A4 - An improved ceramic integral vanes impeller - Google Patents

An improved ceramic integral vanes impeller Download PDF

Info

Publication number
WO2008038306A4
WO2008038306A4 PCT/IN2007/000451 IN2007000451W WO2008038306A4 WO 2008038306 A4 WO2008038306 A4 WO 2008038306A4 IN 2007000451 W IN2007000451 W IN 2007000451W WO 2008038306 A4 WO2008038306 A4 WO 2008038306A4
Authority
WO
WIPO (PCT)
Prior art keywords
impeller
vanes
shroud
pumping
auxiliary
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.)
Ceased
Application number
PCT/IN2007/000451
Other languages
French (fr)
Other versions
WO2008038306A3 (en
WO2008038306A2 (en
Inventor
R S Madhusudan
A V S Rao
Sanjay Singh
Jagannath Hiremani
B C Dayanand
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.)
Weir Minerals India Pvt Ltd
Original Assignee
Weir Minerals India Pvt 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 Weir Minerals India Pvt Ltd filed Critical Weir Minerals India Pvt Ltd
Publication of WO2008038306A2 publication Critical patent/WO2008038306A2/en
Publication of WO2008038306A3 publication Critical patent/WO2008038306A3/en
Publication of WO2008038306A4 publication Critical patent/WO2008038306A4/en
Anticipated expiration legal-status Critical
Ceased 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
    • F04D29/2205—Conventional flow pattern
    • F04D29/2222—Construction and assembly
    • F04D29/2227—Construction and assembly for special materials
    • 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
    • F04D29/02—Selection of particular materials
    • F04D29/026—Selection of particular materials especially adapted for liquid pumps
    • 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
    • F04D7/04—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous
    • F04D7/045—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous with means for comminuting, mixing stirring or otherwise treating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/95—Preventing corrosion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/20—Oxide or non-oxide ceramics
    • F05D2300/21—Oxide ceramics
    • F05D2300/2112—Aluminium oxides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/20—Oxide or non-oxide ceramics
    • F05D2300/22—Non-oxide ceramics
    • F05D2300/226—Carbides
    • F05D2300/2261—Carbides of silicon
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/40—Organic materials
    • F05D2300/43—Synthetic polymers, e.g. plastics; Rubber

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

A ceramic integral vanes impeller which can be used for pumping fluids containing highly erosive and corrosive substances. More particularly the impeller can be used for pumping fluids containing highly erosive and corrosive substances in mining and mineral processing industry.

Claims

AMENDED CLAIMSreceived by the International Bureau on 05 August 2008 (05.08.08)
1. An improved impeller with integral vanes for use in a centrifugal pump, the impeller comprising:
- a shroud having opposed faces; an outer peripheral edge portion and a rotation axis; a plurality of pumping vanes on one of the faces of the shroud, extending away from the rotation axis, each pumping vane having an outer peripheral edge portion; and
- a plurality of auxiliary vanes on the other face of the shroud, each auxiliary vane having an outer edge portion;
- tip diameter of the auxiliary vanes (Db) and tip diameter of the pumping vanes (Dc) is in the range of 97% to 100% of the diameter of the shroud (D3;
- the tip diameter of the auxiliary vanes (Dt) is higher than the tip diameter of the pumping vanes (Dc); and the angle at which the auxiliary vanes taper with respect to the shroud is in the range of 80° to 90°;the impeller is made of a composite material which is resistant to corrosion and erosion.
2. An impeller as claimed in claim 1, wherein the composite material is ceramic such as alumina or silicon carbide.
3. An impeller as claimed in claim 1, wherein the composite material is a corrosion resistant material such as ceramic and alloy.
4. An impeller as claimed in claim 1, wherein all the vanes of the said Impeller are cast together within two circular discs as a single piece.
5. An impeller as claimed in claim 1, wherein the vane width of the auxiliary vane is thicker than that of the pumping vane.
6. An impeller as claimed in claim 1, wherein the number of auxiliary vanes is same as that of the pumping vanes.
7. An impeller as claimed in claim 1, wherein the tip diameter of the auxiliary vanes (Db)is equal to that of the shroud (Da)
8. An impeller as claimed in claim 1, wherein the tip diameter of the pumping vanes (Dc) is 0.97 of the diameter of the shroud (Da).
9. An impeller as claimed In claim 1, wherein the diameter of the shroud (Da) is equal to diameter (D'c) of the pumping vanes at the mating point with the shroud.
10. An impeller as claimed in claim 1, wherein the tip diameter of the pumping vanes (Dc) is 0.97 of the tip diameter of the auxiliary vanes (Db) to create a higher pumping head for removing slurry tending to deposit in the gap between said impeller and casing.
PCT/IN2007/000451 2006-09-28 2007-09-28 An improved ceramic integral vanes impeller Ceased WO2008038306A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN1796/CHE/2006 2006-09-28
IN1796CH2006 2006-09-28

Publications (3)

Publication Number Publication Date
WO2008038306A2 WO2008038306A2 (en) 2008-04-03
WO2008038306A3 WO2008038306A3 (en) 2008-10-30
WO2008038306A4 true WO2008038306A4 (en) 2009-01-15

Family

ID=39230690

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IN2007/000451 Ceased WO2008038306A2 (en) 2006-09-28 2007-09-28 An improved ceramic integral vanes impeller

Country Status (1)

Country Link
WO (1) WO2008038306A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011078017B3 (en) * 2011-06-22 2012-06-21 E.G.O. Elektro-Gerätebau GmbH pump
WO2013000032A1 (en) * 2011-06-30 2013-01-03 Weir Minerals (India) Private Limited Improved ceramic impeller with metallic hub
CN116209833B (en) 2020-08-18 2025-12-02 伟尔矿物美国有限公司 Composite metal centrifugal slurry pump impeller

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2433589A (en) * 1939-05-25 1947-12-30 Nash Engineering Co Pump
US4231706A (en) * 1977-04-27 1980-11-04 Hitachi, Ltd. Impeller of a centrifugal blower
US4755105A (en) * 1986-10-27 1988-07-05 Chemcut Corporation Impeller improvement
US5489187A (en) * 1994-09-06 1996-02-06 Roper Industries, Inc. Impeller pump with vaned backplate for clearing debris
DE4435192C1 (en) * 1994-09-30 1996-02-29 Klein Schanzlin & Becker Ag Centrifugal pump impeller for contaminated liquids
US7021891B2 (en) * 2002-12-18 2006-04-04 Intel Corporation Micro-impeller miniature centrifugal compressor
AU2003903024A0 (en) * 2003-06-16 2003-07-03 Weir Warman Ltd Improved pump impeller

Also Published As

Publication number Publication date
WO2008038306A3 (en) 2008-10-30
WO2008038306A2 (en) 2008-04-03

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