CA2418196A1 - Rotor for flotation mechanism and method for directing material flow in flotation machine - Google Patents
Rotor for flotation mechanism and method for directing material flow in flotation machine Download PDFInfo
- Publication number
- CA2418196A1 CA2418196A1 CA002418196A CA2418196A CA2418196A1 CA 2418196 A1 CA2418196 A1 CA 2418196A1 CA 002418196 A CA002418196 A CA 002418196A CA 2418196 A CA2418196 A CA 2418196A CA 2418196 A1 CA2418196 A1 CA 2418196A1
- Authority
- CA
- Canada
- Prior art keywords
- rotor
- outer edge
- cover plate
- chambers
- angle
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/14—Flotation machines
- B03D1/16—Flotation machines with impellers; Subaeration machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/14—Flotation machines
- B03D1/1412—Flotation machines with baffles, e.g. at the wall for redirecting settling solids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/14—Flotation machines
- B03D1/1493—Flotation machines with means for establishing a specified flow pattern
Abstract
The invention relates to a rotor used in the flotation mechanism in the concentration of ores. According to the invention, upper part of the rotor chambers under the rotor cover are formed to be downward inclined from the outer edge of the chambers into the core so that they form an angle between 5 to 70 degrees with the horizontal plane. In addition the upper surface of the rotor cover can be inclined upwards raising from around the rotor shaft towards the outer edge at an angle between 5-70 degrees. With the means inside and above the rotor the slurry is directed upwards through the stator of the flotation mechanism. The developed rotor improves the suspension of coarse particles with high specific gravity within a flotation machine. The invention relates also to a method for inverting the material flow discharing from the rotor.
Claims (11)
1. A rotor (11) of a flotation mechanism (1) for concentrating of ores where the flotation mechanism is formed of a stator (2) with its blades (4) around a downward tapered rotor suspended on a hollow shaft (6) and which rotor is equipped with a cover plate (12,21) and essentially vertical rotor blades (8) which form chambers (9,15,19,20) inside the rotor, air being conducted through the shaft to the chambers, characterized in that the upper part of the chambers (15,20) under the rotor cover plate (12,21) are formed with aligning means (13) to be downward inclined from their outer edge (16,30) into the core (17,28) of the chambers so that they form an angle between 5 - 70 degrees with the horizontal plane and that the upper surface of said rotor cover plate (12,21) is inclined upwards raising from around the shaft (6) towards the outer edge (18,25) at an angle between 5 - 70° with the horizontal plane.
2. A rotor according to claim 1, characterized in that chambers (15,20) of the rotor (11) are equipped with a slurry directing plate (27) underneath the cover plate (21), which directing plate is joined from the outer edge (29) to the cover plate and from other sides to the rotor blades the directing plate reaching downward to the core (28) of the pumping chamber at an angle between 5 - 70 degrees.
3. A rotor according to claim 1, characterized in that the rotor blades (8) form separate air chambers (9,19) and pumping chambers (20) of which the upper part of the pumping chambers (20) under the rotor cover plate (12,21) are formed to be downward inclined from the outer edge (18,25) of the rotor cover into the core (17,28) of the pumping chambers so that they form an angle between 5 - 70 degrees with the horizontal plane.
4. A rotor according to claim 1, characterized in that the rotor cover plate (21) is equipped with an annular upper surface plate (22) which inner edge (23) is attached to the cover plate around the shaft (6), the upper surface plate raising from around the shaft towards its outer edge (24) at an angle between 5 - 70 ° with the horizontal plane.
5. A rotor according to claim 1, characterized in that the upper surface plate (229 is joined at its outer edge (24) to the outer edge (25) of the rotor cover plate with the aid of a vertical plate (26).
6. A rotor according to a preceding claim, characterized in that the surface of means (13,14) or plates (27,22) towards the slurry is straight.
7. A rotor according to a preceding claim, characterized in that the surface of means (13,14) or plates (27,22) towards the slurry is curved, concave or convex.
8. A method for directing a slurry flow in a mixing zone of a flotation machine with the aid of a flotation mechanism which forms of a stator around a rotor wherein the rotor is downward tapered and rotor blades under a cover form slots for slurry and/or air, the rotor being suspended from a shaft through which the air is conducted to the rotor, characterized in that in order to flotate coarse particles and having a high specific gravity, the slung flow discharging the rotor is directed upwards and the slurry flow above the rotor is directed upwards.
9. A method according to claim 8, characterized in that the slurry flow discharging the rotor is directed upwards by formulating the upper part of the slots downward inclined from their outer edge into the core so that they form an angle between 5 to 70 ° with the horizontal plane.
10. A method according to claim 8, characterized in that the slurry flow above the rotor is directed upwards by inclining the upper surface of the rotor cover plate upwards raising from around the shaft towards the outer edge at an angle between 5 - 70 degrees with the horizontal plane.
11. A method according to claim 8, characterized in that coarse particles have a size above P80 = 180 µm.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20001699 | 2000-07-21 | ||
| FI20001699A FI109180B (en) | 2000-07-21 | 2000-07-21 | Flotation mechanism rotor and method for directing material flow in a flotation machine |
| PCT/FI2001/000679 WO2002007891A1 (en) | 2000-07-21 | 2001-07-19 | Rotor for flotation mechanism and method for directing material flow in flotation machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2418196A1 true CA2418196A1 (en) | 2002-01-31 |
| CA2418196C CA2418196C (en) | 2010-09-21 |
Family
ID=8558809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2418196A Expired - Fee Related CA2418196C (en) | 2000-07-21 | 2001-07-19 | Rotor for flotation mechanism and method for directing material flow in flotation machine |
Country Status (16)
| Country | Link |
|---|---|
| US (1) | US6772885B2 (en) |
| EP (1) | EP1309408A1 (en) |
| CN (1) | CN1315578C (en) |
| AR (1) | AR030252A1 (en) |
| AU (2) | AU2001279846B2 (en) |
| BR (1) | BR0112649A (en) |
| CA (1) | CA2418196C (en) |
| EA (1) | EA004722B1 (en) |
| FI (1) | FI109180B (en) |
| MX (1) | MXPA03000541A (en) |
| NO (1) | NO20030305L (en) |
| NZ (1) | NZ523636A (en) |
| PE (1) | PE20020248A1 (en) |
| PL (1) | PL365753A1 (en) |
| WO (1) | WO2002007891A1 (en) |
| ZA (1) | ZA200300362B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI119047B (en) * | 2006-11-22 | 2008-07-15 | Outotec Oyj | Flotation machine rotor, method for forming rotor and method for servicing rotor |
| CN101708488B (en) * | 2009-12-08 | 2013-04-17 | 北京矿冶研究总院 | Flotation machine impeller |
| CN103464306A (en) * | 2013-09-25 | 2013-12-25 | 瓮福（集团）有限责任公司 | Wear-resistance flotation machine rotor device |
| CN104307395B (en) * | 2014-09-17 | 2017-02-22 | 姚宇乐 | Ore pulp dispersion groove |
| CN106006813B (en) * | 2016-07-06 | 2019-02-05 | 中国水产科学研究院渔业机械仪器研究所 | A kind of broken air floatation device of box rotor |
| DE102018109952B4 (en) | 2018-04-25 | 2021-08-05 | Takraf Gmbh | Device for generating gas bubbles in suspensions for the enrichment of mineral and non-mineral raw materials and the use of such a device |
| CN109013069A (en) * | 2018-09-25 | 2018-12-18 | 北矿机电科技有限责任公司 | A kind of impeller of flotation device |
| CN110170382A (en) * | 2019-06-26 | 2019-08-27 | 绍兴金冶环保科技有限公司 | Leaf paddle metallurgy flotation device |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2393976A (en) * | 1941-05-31 | 1946-02-05 | Mining Process & Patent Co | Agitating means and method |
| US2767965A (en) * | 1950-11-03 | 1956-10-23 | Mining Process & Patent Co | Dual pumping agitation |
| US2892543A (en) * | 1956-02-27 | 1959-06-30 | Mining Process & Patent Co | Aerator assembly with pulp elevating discharge |
| GB832526A (en) * | 1956-09-27 | 1960-04-13 | Metalurski Inst Pri Tehniski F | Stirrers for flotation cells or agitators |
| US4078026A (en) | 1973-06-05 | 1978-03-07 | Outokumpu Oy | Device for dispersing gas into a liquid |
| SU904788A1 (en) * | 1980-05-07 | 1982-02-15 | Башкирский Ордена Трудового Красного Знамени Медно-Серный Комбинат | Flotation machine cone impeller |
| SU1273174A1 (en) * | 1985-02-25 | 1986-11-30 | Krylo Evgenij | Aeration unit for flotation machine |
| US4800017A (en) * | 1987-04-16 | 1989-01-24 | Dorr-Oliver Incorporated | Flotation mechanism |
| US5591327A (en) * | 1993-12-09 | 1997-01-07 | Walters; Jeremy P. A. | Flotation equipment |
-
2000
- 2000-07-21 FI FI20001699A patent/FI109180B/en not_active IP Right Cessation
-
2001
- 2001-07-18 PE PE2001000728A patent/PE20020248A1/en not_active Application Discontinuation
- 2001-07-19 CN CNB018143172A patent/CN1315578C/en not_active Expired - Fee Related
- 2001-07-19 CA CA2418196A patent/CA2418196C/en not_active Expired - Fee Related
- 2001-07-19 AU AU2001279846A patent/AU2001279846B2/en not_active Ceased
- 2001-07-19 PL PL01365753A patent/PL365753A1/en unknown
- 2001-07-19 AU AU7984601A patent/AU7984601A/en active Pending
- 2001-07-19 US US10/332,335 patent/US6772885B2/en not_active Expired - Fee Related
- 2001-07-19 WO PCT/FI2001/000679 patent/WO2002007891A1/en not_active Application Discontinuation
- 2001-07-19 NZ NZ523636A patent/NZ523636A/en not_active IP Right Cessation
- 2001-07-19 BR BR0112649-0A patent/BR0112649A/en not_active Application Discontinuation
- 2001-07-19 MX MXPA03000541A patent/MXPA03000541A/en active IP Right Grant
- 2001-07-19 EA EA200300176A patent/EA004722B1/en not_active IP Right Cessation
- 2001-07-19 EP EP01958108A patent/EP1309408A1/en not_active Withdrawn
- 2001-07-20 AR ARP010103487A patent/AR030252A1/en not_active Application Discontinuation
-
2003
- 2003-01-14 ZA ZA200300362A patent/ZA200300362B/en unknown
- 2003-01-20 NO NO20030305A patent/NO20030305L/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| US6772885B2 (en) | 2004-08-10 |
| NZ523636A (en) | 2003-10-31 |
| EA200300176A1 (en) | 2003-08-28 |
| AU2001279846B2 (en) | 2006-02-02 |
| WO2002007891A1 (en) | 2002-01-31 |
| NO20030305L (en) | 2003-03-18 |
| CN1638873A (en) | 2005-07-13 |
| AU7984601A (en) | 2002-02-05 |
| PE20020248A1 (en) | 2002-05-06 |
| FI109180B (en) | 2002-06-14 |
| PL365753A1 (en) | 2005-01-10 |
| EA004722B1 (en) | 2004-08-26 |
| AR030252A1 (en) | 2003-08-13 |
| ZA200300362B (en) | 2003-07-31 |
| EP1309408A1 (en) | 2003-05-14 |
| MXPA03000541A (en) | 2003-05-14 |
| NO20030305D0 (en) | 2003-01-20 |
| US20040112835A1 (en) | 2004-06-17 |
| FI20001699A0 (en) | 2000-07-21 |
| FI20001699A (en) | 2002-01-22 |
| CA2418196C (en) | 2010-09-21 |
| CN1315578C (en) | 2007-05-16 |
| BR0112649A (en) | 2003-06-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20170719 |