EP0581196A2 - Réglage d'une installation de flottaison à étage primaire et secondaire - Google Patents
Réglage d'une installation de flottaison à étage primaire et secondaire Download PDFInfo
- Publication number
- EP0581196A2 EP0581196A2 EP93111761A EP93111761A EP0581196A2 EP 0581196 A2 EP0581196 A2 EP 0581196A2 EP 93111761 A EP93111761 A EP 93111761A EP 93111761 A EP93111761 A EP 93111761A EP 0581196 A2 EP0581196 A2 EP 0581196A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- stage
- primary
- overflow
- primary stage
- amount
- 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
Images
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
- B03D1/02—Froth-flotation processes
- B03D1/028—Control and monitoring of flotation processes; computer models therefor
-
- 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
- B03D1/1406—Flotation machines with special arrangement of a plurality of flotation cells, e.g. positioning a flotation cell inside another
-
- 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
- B03D1/1443—Feed or discharge mechanisms for flotation tanks
- B03D1/1462—Discharge mechanisms for the froth
Definitions
- the invention relates to the control of a flotation plant according to the preamble of the claim.
- there is a difficulty in controlling the two flotation stages because of the amount of foam generated and the air-containing suspension to be floated.
- the following principle of regulation results: regulation of the primary cell overflow quantity by measuring the primary foam channel level and an indirect level regulation of the primary foam channel by changing the amount of accepting material (primary cell level) with a fixed inflow quantity for flotation (flow regulation).
- the constant accumulation height also means a constant overflow amount due to the measuring weir in or at the end of the foam channel.
- the measurement of the primary cell level only serves as an additional control display.
- the advantages are:
- the foam channel level (small volume) is sensitive to changes in the primary overflow quantity, which is why the primary overflow quantity can be set very precisely and reproducibly using the bypass valve.
- the secondary stage is always charged with a constant amount due to the constant level of the foam channel, which means that the secondary overflow and the amount of return material are largely constant.
- the inflow amount to the secondary stage is constant, but the air content in the secondary stage can change, whereby the overflow amount can vary despite the unchanged level transmitter display.
- the secondary cell overflow quantity is controlled by measuring the secondary foam channel level in front of an outlet weir (vertical slot approx. 15 mm wide) and an indirect level control of the secondary foam channel by changing the amount of return material.
- the foam channel level (small volume) is so sensitive to changes in the overflow volume that the influence of different air contents in the overflow material is negligible and there is a reproducible relationship between the foam channel level and the overflow volume.
- primary stage 1 essentially consists of the individual flotation cells 20, 20 ', etc., which are connected in series and each of which is assigned an injector 22, 22' or another supply apparatus for the suspension to be flotated.
- the supply lines to the injectors are labeled 21, 21 'etc.
- a foam channel 12 is common to all flotation cells, and the cleaned suspension flows to the flotation cell via a weir.
- the primary flotation stage has a measuring weir 28 in the foam channel or at the end of the foam channel.
- the secondary stage 2 is constructed similarly with individual cells 61, 61 ', injectors 62 and 62', the conduction between the two cells being carried out by line 63.
- a foam channel 61 is provided, which is also preceded by a weir.
- a measuring weir 29 at the end or inside the foam channel.
- the levels are preferably measured by pressure transmitters 51 and 53, respectively.
- controllers 52 and 54 control the quantity of accepted material in the primary stage via valve 47 and the return flow to the primary stage from the secondary stage of flotation via valve 49.
- the amount of foam or overflow of the primary stage is fed via line 36 to a hydrocyclone 10, which carries out the deaeration of the foam-containing suspension. With its conical end, it dips into a container 38 located deep, for example in the basement, from which a pump 44 conveys the suspension to line 46. To keep the level in the container 38 constant, a pressure transducer 45 and a regulator 56 and valve 45 in line 42 are used, via which a circulation quantity (in the bypass) is led to the secondary flotation stage 2.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biotechnology (AREA)
- Paper (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
- Physical Water Treatments (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4225117 | 1992-07-30 | ||
DE4225117A DE4225117C1 (de) | 1992-07-30 | 1992-07-30 | Flotationsanlage mit Primär- und Sekundärstufe |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0581196A2 true EP0581196A2 (fr) | 1994-02-02 |
EP0581196A3 EP0581196A3 (fr) | 1994-04-13 |
EP0581196B1 EP0581196B1 (fr) | 1996-12-04 |
Family
ID=6464410
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93111761A Expired - Lifetime EP0581196B1 (fr) | 1992-07-30 | 1993-07-22 | Réglage d'une installation de flottaison à étage primaire et secondaire |
Country Status (9)
Country | Link |
---|---|
US (1) | US5330655A (fr) |
EP (1) | EP0581196B1 (fr) |
JP (1) | JPH06154655A (fr) |
AT (1) | ATE145840T1 (fr) |
BR (1) | BR9302561A (fr) |
CA (1) | CA2101710A1 (fr) |
DE (1) | DE4225117C1 (fr) |
FI (1) | FI933396A (fr) |
NO (1) | NO300005B1 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0693318A1 (fr) * | 1994-07-22 | 1996-01-24 | Voith Sulzer Stoffaufbereitung GmbH | Dispositif de flottaison |
WO2003026801A1 (fr) * | 2001-09-27 | 2003-04-03 | Outokumpu Oyj | Procede de reglage de variation d'alimentation dans un circuit de flottation de mineraux precieux |
EP1457597A2 (fr) * | 2003-03-11 | 2004-09-15 | Andritz AG | Méthode pour regler le fonctionnement d'une cellule de flottation |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5804061A (en) * | 1997-04-14 | 1998-09-08 | Beloit Technologies, Inc. | Multiflow pressurized deinking apparatus |
US6073774A (en) * | 1997-04-14 | 2000-06-13 | Beloit Technologies, Inc. | Pressurized deinking module with vent line |
NO993560D0 (no) * | 1999-07-20 | 1999-07-20 | Abb Miljoeas | Fremgangsmåte for fjerning av gass og forurensninger fra en vaeske |
AU1590901A (en) * | 1999-11-12 | 2001-06-06 | Baker Hughes Incorporated | Froth flow measurement system |
AT407844B (de) * | 2000-02-03 | 2001-06-25 | Andritz Ag Maschf | Verfahren und vorrichtung zur belüftung von dispersionen |
DE10125977C1 (de) * | 2001-05-29 | 2003-01-02 | Voith Paper Patent Gmbh | Verfahren zur Entfernung von Störstoffen aus einer wässrigen Papierfasersuspension |
DE10125978C1 (de) * | 2001-05-29 | 2003-01-02 | Voith Paper Patent Gmbh | Verfahren zur Steuerung oder Regelung einer Flotationsanlage |
DE10236123B4 (de) * | 2002-08-07 | 2006-12-07 | Voith Patent Gmbh | Verfahren zur Entfernung von Störstoffen aus einer wässrigen Papierfasersuspension |
AT412288B (de) * | 2003-02-25 | 2004-12-27 | Andritz Ag Maschf | Verfahren und vorrichtung zur belüftung von suspensionen |
FR2857032A1 (fr) * | 2003-05-15 | 2005-01-07 | Kadant Lamort | Procede de desencrage de pate a papier et cellule de flottation utilisee pour ce procede |
DE102008031411B4 (de) * | 2008-07-02 | 2019-07-25 | Voith Patent Gmbh | Verfahren zur Steuerung oder Regelung einer Flotationsanlage |
CN102225370B (zh) * | 2011-05-24 | 2013-01-23 | 东北大学 | 一种含石棉型滑石矿的浮选除杂方法 |
CN102744159B (zh) * | 2012-06-14 | 2016-01-20 | 甘肃酒钢集团宏兴钢铁股份有限公司 | 一种提高硫化铜矿石选矿指标的浮选方法 |
CN104668108A (zh) * | 2014-12-29 | 2015-06-03 | 山东东山王楼煤矿有限公司 | 用于煤泥的浮选装置和浮选方法 |
CN105583069B (zh) * | 2015-12-21 | 2018-02-23 | 中南大学 | 一种高磷鲕状赤铁矿的选别方法 |
CN105903574A (zh) * | 2016-04-13 | 2016-08-31 | 中国矿业大学 | 一种浮选药剂乳化控制添加设备 |
CN105689156A (zh) * | 2016-04-20 | 2016-06-22 | 江西铜业股份有限公司 | 一种浮选槽面控制调整方法 |
AU2018378556A1 (en) * | 2017-12-09 | 2020-07-02 | OPEC Remediation Technologies Pty Limited | Method and apparatus for separation of a substance from water |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU548578B2 (en) * | 1981-08-28 | 1985-12-19 | Nauchno-Proizvodstvennoe Obiedinenie "Sojuztsvetmetavtomatica" | Froth flotation |
EP0391042A1 (fr) * | 1989-04-07 | 1990-10-10 | J.M. Voith GmbH | Méthode pour le réglage d'une installation de flottation |
EP0447887A1 (fr) * | 1990-03-21 | 1991-09-25 | J.M. Voith GmbH | Dispositif pour la séparation de l'air de liquides troubles de flottation |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1457077A (en) * | 1919-08-21 | 1923-05-29 | Thomas A Janney | Flotation machine |
US1886979A (en) * | 1931-01-26 | 1932-11-08 | Jr Joseph P Ruth | Flotation method |
US2005742A (en) * | 1934-05-25 | 1935-06-25 | Pierre R Hines | Process for deinking imprinted paper |
CA1015869A (en) * | 1974-04-30 | 1977-08-16 | Inco Limited | Computer control of flotation metallurgy |
SU598643A1 (ru) * | 1975-08-21 | 1978-03-25 | Всесоюзный научно-исследовательский и конструкторский институт "Цветметавтоматика" | Способ управлени флотационным процессом с перечистными операци ми |
SU738670A1 (ru) * | 1978-03-27 | 1980-06-05 | Всесоюзный Ордена Трудового Красного Знамени Научно-Исследовательский И Проектный Институт Механической Обработки Полезных Ископаемых | Способ автоматического управлени процессом флотации и устройство дл его осуществлени |
SU755312A1 (ru) * | 1978-05-06 | 1980-08-15 | Evgenij M Lyamkin | Устройство автоматического контроля эффективности многостадийного флотационного процесса обогащения 1 |
SU854449A1 (ru) * | 1979-11-30 | 1981-08-15 | Ленинградский Ордена Ленина,Ордена Октябрьской Революции И Ордена Трудового Красного Знамени Горный Институт Им.Г.В.Плеханова | Способ автоматического управлени процессом флотации |
GB2146253A (en) * | 1983-09-12 | 1985-04-17 | Haden Drysys Int Ltd | A separation system including a flotation tank having level control means |
US4952308A (en) * | 1986-12-10 | 1990-08-28 | Beloit Corporation | Pressurized flotation module and method for pressurized foam separation |
ZA905849B (en) * | 1989-07-26 | 1991-05-29 | Univ Newcastle Res Ass | A method of operating a plurality of minerals separation flotation cells |
-
1992
- 1992-07-30 DE DE4225117A patent/DE4225117C1/de not_active Expired - Fee Related
-
1993
- 1993-07-22 EP EP93111761A patent/EP0581196B1/fr not_active Expired - Lifetime
- 1993-07-22 AT AT93111761T patent/ATE145840T1/de not_active IP Right Cessation
- 1993-07-29 BR BR9302561A patent/BR9302561A/pt not_active IP Right Cessation
- 1993-07-29 NO NO932733A patent/NO300005B1/no not_active IP Right Cessation
- 1993-07-29 FI FI933396A patent/FI933396A/fi unknown
- 1993-07-29 JP JP5188136A patent/JPH06154655A/ja active Pending
- 1993-07-30 US US08/100,483 patent/US5330655A/en not_active Expired - Fee Related
- 1993-07-30 CA CA002101710A patent/CA2101710A1/fr not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU548578B2 (en) * | 1981-08-28 | 1985-12-19 | Nauchno-Proizvodstvennoe Obiedinenie "Sojuztsvetmetavtomatica" | Froth flotation |
EP0391042A1 (fr) * | 1989-04-07 | 1990-10-10 | J.M. Voith GmbH | Méthode pour le réglage d'une installation de flottation |
EP0447887A1 (fr) * | 1990-03-21 | 1991-09-25 | J.M. Voith GmbH | Dispositif pour la séparation de l'air de liquides troubles de flottation |
Non-Patent Citations (1)
Title |
---|
DAS PAPIER Bd. 42, Nr. 7 , Juli 1988 , DARMSTADT DE Seiten 337 - 341 P. SCHWEISS: 'Die Voith-Mehrfach-Injektorzelle' * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0693318A1 (fr) * | 1994-07-22 | 1996-01-24 | Voith Sulzer Stoffaufbereitung GmbH | Dispositif de flottaison |
US5770050A (en) * | 1994-07-22 | 1998-06-23 | Voith Sulzer Stoffaufbereitung Gmbh | Flotation apparatus |
WO2003026801A1 (fr) * | 2001-09-27 | 2003-04-03 | Outokumpu Oyj | Procede de reglage de variation d'alimentation dans un circuit de flottation de mineraux precieux |
EP1457597A2 (fr) * | 2003-03-11 | 2004-09-15 | Andritz AG | Méthode pour regler le fonctionnement d'une cellule de flottation |
EP1457597A3 (fr) * | 2003-03-11 | 2007-10-17 | Andritz AG | Méthode pour regler le fonctionnement d'une cellule de flottation |
Also Published As
Publication number | Publication date |
---|---|
CA2101710A1 (fr) | 1994-01-31 |
DE4225117C1 (de) | 1994-03-31 |
NO300005B1 (no) | 1997-03-17 |
NO932733D0 (no) | 1993-07-29 |
ATE145840T1 (de) | 1996-12-15 |
FI933396A0 (fi) | 1993-07-29 |
BR9302561A (pt) | 1994-03-22 |
FI933396A (fi) | 1994-01-31 |
US5330655A (en) | 1994-07-19 |
EP0581196B1 (fr) | 1996-12-04 |
NO932733L (no) | 1994-01-31 |
JPH06154655A (ja) | 1994-06-03 |
EP0581196A3 (fr) | 1994-04-13 |
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