MXPA05002888A - Surface aeration impellers. - Google Patents
Surface aeration impellers.Info
- Publication number
- MXPA05002888A MXPA05002888A MXPA05002888A MXPA05002888A MXPA05002888A MX PA05002888 A MXPA05002888 A MX PA05002888A MX PA05002888 A MXPA05002888 A MX PA05002888A MX PA05002888 A MXPA05002888 A MX PA05002888A MX PA05002888 A MXPA05002888 A MX PA05002888A
- Authority
- MX
- Mexico
- Prior art keywords
- impeller
- liquid
- blades
- disc
- vertical
- Prior art date
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
- F04D29/2261—Rotors specially for centrifugal pumps with special measures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/234—Surface aerating
- B01F23/2342—Surface aerating with stirrers near to the liquid surface, e.g. partially immersed, for spraying the liquid in the gas or for sucking gas into the liquid, e.g. using stirrers rotating around a horizontal axis or using centrifugal force
- B01F23/23421—Surface aerating with stirrers near to the liquid surface, e.g. partially immersed, for spraying the liquid in the gas or for sucking gas into the liquid, e.g. using stirrers rotating around a horizontal axis or using centrifugal force the stirrers rotating about a vertical axis
- B01F23/234211—Stirrers thereof
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
- Accessories For Mixers (AREA)
Abstract
A surface aeration impeller for use in a liquid filled tank. The impeller is rotatable about an axis perpendicular to the static liquid surface. The impeller has a plurality of blades mounted on the underside of a disc or disc-like surface. Each blade has a multi-faceted or curved geometry ranging from vertical at the point of attachment to the disc to partially inclined at the bottom. The blades are spaced circumferentially about the axis and are disposed at acute angles to radial lines from the axis of rotation of the impeller. The lower portions of the blades, which are inclined but non-vertical, are positioned at or below the static liquid surface. When the impeller is rotated, the lower portion pumps the liquid up onto the vertical portion of the blades where the liquid is discharged into a spray umbrella in a direction upwardly and outwardly away from the impeller. The design of the invention produces substantially higher oxygen transfer efficiency and overall liquid pumping rates than prior art designs and is particularly useful in the aeration of sewage and other wastewater.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US2002/029280 WO2004025125A2 (en) | 1998-09-28 | 2002-09-16 | Surface aeration impellers |
Publications (1)
Publication Number | Publication Date |
---|---|
MXPA05002888A true MXPA05002888A (en) | 2005-10-05 |
Family
ID=34374683
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MXPA05002888A MXPA05002888A (en) | 2002-09-16 | 2002-09-16 | Surface aeration impellers. |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1581745A4 (en) |
JP (1) | JP2006503687A (en) |
AU (1) | AU2002365076B2 (en) |
CA (1) | CA2499051C (en) |
MX (1) | MXPA05002888A (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL1027600C2 (en) * | 2004-11-26 | 2006-05-29 | Andries Visser | Device and method for aeration of waste water. |
EP2216395A1 (en) * | 2009-02-09 | 2010-08-11 | Lonza Biologics plc. | Bioreactor for the cultivation of mammalian cells |
JP5704928B2 (en) * | 2011-01-11 | 2015-04-22 | 株式会社環境測定サービス | Water circulation device |
CN102583720B (en) * | 2012-02-23 | 2013-09-25 | 安徽国祯环保节能科技股份有限公司 | Deep-water type down-umbrella aerator impeller |
DE102013225662A1 (en) * | 2013-12-11 | 2015-06-11 | Invent Umwelt- Und Verfahrenstechnik Ag | Stirring device for circulating wastewater and equipment received in a basin |
JP6169207B1 (en) * | 2016-02-29 | 2017-07-26 | 株式会社メデック | Rotating body for stirring and stirring device |
JP6908502B2 (en) * | 2017-11-17 | 2021-07-28 | 新明和工業株式会社 | Aeration device |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3290016A (en) * | 1965-01-08 | 1966-12-06 | Nettco Corp | Mixer means and impeller therefor |
DE2003759A1 (en) * | 1970-01-28 | 1971-09-23 | Bamag Verfahrenstechnik Gmbh | Effluent surface aeration centrifugal impeller |
DE2409549A1 (en) * | 1974-02-28 | 1975-09-11 | Sotralentz Sa | DEVICE FOR SPRAYING WATER INTO THE AIR |
US4066383A (en) * | 1976-06-18 | 1978-01-03 | General Signal Corporation | Surface aeration impeller |
-
2002
- 2002-09-16 MX MXPA05002888A patent/MXPA05002888A/en active IP Right Grant
- 2002-09-16 JP JP2004535370A patent/JP2006503687A/en active Pending
- 2002-09-16 CA CA2499051A patent/CA2499051C/en not_active Expired - Fee Related
- 2002-09-16 EP EP02802924A patent/EP1581745A4/en not_active Withdrawn
- 2002-09-16 AU AU2002365076A patent/AU2002365076B2/en not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
EP1581745A2 (en) | 2005-10-05 |
AU2002365076A1 (en) | 2004-04-30 |
CA2499051C (en) | 2010-06-01 |
EP1581745A4 (en) | 2010-12-15 |
CA2499051A1 (en) | 2004-03-25 |
JP2006503687A (en) | 2006-02-02 |
AU2002365076B2 (en) | 2008-12-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG | Grant or registration |