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SE508704C2 - Device at flotation apparatus - Google Patents

Device at flotation apparatus

Info

Publication number
SE508704C2
SE508704C2 SE9200280A SE9200280A SE508704C2 SE 508704 C2 SE508704 C2 SE 508704C2 SE 9200280 A SE9200280 A SE 9200280A SE 9200280 A SE9200280 A SE 9200280A SE 508704 C2 SE508704 C2 SE 508704C2
Authority
SE
Sweden
Prior art keywords
wall
froth
channel
lead
zinc
Prior art date
Application number
SE9200280A
Other languages
Swedish (sv)
Other versions
SE9200280L (en
SE9200280D0 (en
Inventor
Jan-Erik Johansson
Leif Johansson
Original Assignee
Johansson Jan Erik
Leif Johansson
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 Johansson Jan Erik, Leif Johansson filed Critical Johansson Jan Erik
Priority to SE9200280A priority Critical patent/SE508704C2/en
Publication of SE9200280D0 publication Critical patent/SE9200280D0/en
Priority to FI943601A priority patent/FI943601L/en
Priority to EP93904425A priority patent/EP0725684A1/en
Priority to PCT/SE1993/000079 priority patent/WO1993014876A1/en
Publication of SE9200280L publication Critical patent/SE9200280L/en
Priority to NO942500A priority patent/NO302157B1/en
Publication of SE508704C2 publication Critical patent/SE508704C2/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION 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
    • B03DFLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00Flotation
    • B03D1/02Froth-flotation processes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION 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
    • B03DFLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00Flotation
    • B03D1/08Subsequent treatment of concentrated product
    • B03D1/082Subsequent treatment of concentrated product of the froth product, e.g. washing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION 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
    • B03DFLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00Flotation
    • B03D1/14Flotation machines
    • B03D1/1443Feed or discharge mechanisms for flotation tanks
    • B03D1/1462Discharge mechanisms for the froth
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION 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
    • B03DFLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00Flotation
    • B03D1/14Flotation machines
    • B03D1/16Flotation machines with impellers; Subaeration machines
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION 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
    • B03DFLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00Flotation
    • B03D1/02Froth-flotation processes
    • B03D1/028Control and monitoring of flotation processes; computer models therefor

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biotechnology (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Paper (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

A flotation apparatus contains a lower portion of pulp and an upper portion of froth which drains over an upper horizontal edge of the apparatus. When the ore contains lead and zinc, lead contaminated with zinc will drain off. The object of the invention is to increase the lead content in the froth drained off. This is achieved by allowing the froth to drain upwardly through a channel, preferably one having rectangular cross section and having an angle of inclination less than 90 DEG to the surface of the froth. The froth is also spayed before it leaves the channel, with at least one jet of water directed towards the part of the channel wall located furthest away in relation to the drainage edge of the channel.

Description

20 25 30 508 704 Med en apparat enligt uppfinningen, som visas i bifogad ritning kan dessa halter förbättras avsevärt. Den förbätt- rar halten mycket redan i det första steget på den sk uppdelningen, som sedan förbättras ytterligare i följande steg. (flotationsapparater). 20 25 30 508 704 With an apparatus according to the invention, as shown in the attached drawing, these contents can be improved considerably. It improves the content considerably already in the first stage of the so-called separation, which is then further improved in the following stages. (flotation apparatus).

Apparatens funktion går ut på att den i längdriktningen har två liggande väggar som går nästan mot varandra. (spalt på 30 cm). Den väggen som koncentratet kommer att rinna pá, kommer att luta mer än den andra. Detta för att få upp skummet, som samlats under vägg 2, till vägg l och vidare uppåt till reningsprocessen.The function of the device is that it has two horizontal walls in the longitudinal direction that run almost towards each other. (gap of 30 cm). The wall that the concentrate will flow on will be tilted more than the other. This is to bring the foam, which has collected under wall 2, up to wall 1 and further upwards to the purification process.

Vägg 2 får hög lutning mot l därför behövs luftrör under vägg 2 som gör det möjligt att trycka eller blåsa upp luftbubblorna till spalten där reningen sker. Luftrören blåser bara i skummet (ej i pulpen) och för att hålla denna vägg ren från t ex trästickor som annars kan fastna.Wall 2 has a high slope towards l, therefore air pipes are needed under wall 2 to make it possible to push or inflate the air bubbles to the gap where the cleaning takes place. The air pipes only blow into the foam (not into the pulp) and to keep this wall clean from, for example, wooden sticks that could otherwise get stuck.

Spalten som skummet samlas i har en öppning av 30 cm.The gap in which the foam collects has an opening of 30 cm.

Skummet från vägg 2 går således över till vägg l, där reningen sker. Eftersom luftbubblorna följer de sneda väggarna så sker reningen där. Reningen av bubblorna sker med en vattenstråle 3 som slår mot en platta av hårt gummi eller keramik, som sedan vidgas och spolar rent skummet som finns mellan väggen l och väggen 4.The foam from wall 2 thus passes over to wall 1, where the cleaning takes place. Since the air bubbles follow the inclined walls, the cleaning takes place there. The cleaning of the bubbles is done with a water jet 3 that hits a plate of hard rubber or ceramic, which then expands and flushes clean the foam that is between wall 1 and wall 4.

Vattenstràlen (trycket kan varieras) har inte hårt tryck.The water jet (pressure can be varied) does not have strong pressure.

Väggen 4 har samma lutning som väggen l. Fyra stycken vattenrör används till varje apparat. Även Vattenstràlen 5 kan användas pà väggen 4 för ytterligare rening. Klenare dimension. När vattenrör användes så är risken för (ofta problem) igensättning av rören minimal. (ej att jämföra med vanliga vattendyser). Dimensionen på vattenrören kan variera efter storlek på apparat. Med detta förfarande behövs ej några vattendyser som har använts pà tidigare apparater. 10 15 20 25 30 3 508 704 Lutningen på vägg 4 är densamma som för vägg l för att det skall bli en spalt och att skummet lätt vandrar uppåt efter reningen. Den demonterbara väggen 6 är löstagbar pga att det skall vara möjligt att öppna apparaten vid t ex reparation av rotor eller rengöring. Under drift är apparaten nästan helt sluten, endast spalten är öppen.Wall 4 has the same slope as wall 1. Four water pipes are used for each device. Water jets 5 can also be used on wall 4 for further cleaning. Smaller dimensions. When water pipes are used, the risk of (often a problem) clogging of the pipes is minimal. (not to be compared with ordinary water nozzles). The dimensions of the water pipes can vary depending on the size of the device. With this method, no water nozzles are needed that have been used on previous devices. 10 15 20 25 30 3 508 704 The slope of wall 4 is the same as for wall 1 so that there is a gap and that the foam easily migrates upwards after cleaning. The removable wall 6 is removable because it should be possible to open the device for, for example, rotor repair or cleaning. During operation, the device is almost completely closed, only the gap is open.

Rotorn 7 gör att luften fördelas ut i apparaten och gör strömmar i pulpen som krävs för att den skall fungera och bilda skumbädd. Dimension på rotor varierar från apparat till apparat. (Olika storlek pà apparater). Luft- tillflödet 8 regleras med en ventil eller kran. Nivån pà pulpen 9 regleras med ribbor som kan borttagas eller ersättas med flera. Koncentratet som bildas rinner pà ovansidan av vägg 2 som är pàbyggd upptill för att koncen- tratet lättare skall rinna ner, som sedan samlas i en uppsamlare ll.The rotor 7 distributes the air in the device and creates currents in the pulp that are required for it to function and form a foam bed. The rotor dimensions vary from device to device. (Different sizes of devices). The air supply 8 is regulated with a valve or tap. The level of the pulp 9 is regulated with ribs that can be removed or replaced with several. The concentrate that is formed flows on the top of wall 2 that is built up at the top to make it easier for the concentrate to flow down, which is then collected in a collector ll.

Vattenstrálarna 3 fungerar inte bara som renande av skum- bädden, den gör dessutom så det blir en reaktion mellan olika mineralkorn så att de delar pà sig (när det gäller uppdelning av mineral). PH - surhetsgrad spelar också in. För att skilja flera mineraler från gràberg krävs ett annat PH. Vattenstràlen i apparaten måste sitta exakt i förhållande till vägg l. Röret som Vattenstràlen kommer ur görs därför steglös så att stràlen kan justeras upp eller ner. Åt sidan får den ej ändras. Röret monteras rakt mot vägg l.The water jets 3 not only function as a cleanser of the foam bed, they also cause a reaction between different mineral grains so that they split (when it comes to mineral separation). PH - acidity also plays a role. In order to separate several minerals from gravel, a different PH is required. The water jet in the device must be positioned exactly in relation to wall l. The pipe from which the water jet comes is therefore made stepless so that the jet can be adjusted up or down. On the other hand, it must not be changed. The pipe is mounted straight against wall l.

Reaktionen med vattnet gör så att bubblorna med koncen- tratet får en väldig fart uppåt.The reaction with the water causes the bubbles with the concentrate to gain enormous upward momentum.

I det följande skall det anges vilka detaljer i apparaten som hänvisningsbeteckningarna hänsyftar till. 508 704 ®\lO\U1J>b-JI\)l-4 ll 12 13 14 15 Vägg Vägg Vattenstràle Vägg Vattenstråle Demonterbar del Rotor Luft Pulp Koncentrat Koncentratuppsamlare Vattenrör Motor Kilremsdrift LagerhusIn the following, it will be stated which parts of the apparatus the reference numbers refer to. 508 704 ®\lO\U1J>b-JI\)l-4 ll 12 13 14 15 Wall Wall Water jet Wall Water jet Dismantled part Rotor Air Pulp Concentrate Concentrate collector Water pipe Motor V-belt drive Bearing housing

Claims (1)

1. l0 l5 5 508 704 PATENTKRAV Anordning vid flotationsapparat så beskaffad att i en behållare erhålles en undre del av pulp företrädesvis innehållande mineralerna zink och bly och en övre del av skum som avrinner vid en övre kant till behållaren, k ä n n e t e c k n a d därav, att behållaren har en övre vägg som består av två delar (l och 2), som är inåt- riktade dvs lutande mot varandra, under bildande av en öppning, varvid den ena delen (l) sträcker sig förbi öppningen och bildar väggdel utanför öppningen och varvid den fria änden till den andra delen (2) är försedd med en uppátriktad väggdel som är motstàende den utanför- varande väggdelen till nämnda ena del (l) så att en kanal bildas, och mot vilken utanförvarande väggdel (l) i kanalen riktas en eller flera vattenstrálar och att övre kanten till den uppåtriktade väggdelen till nämnda andra del (2) fungerar som avloppskant.1. Patent claim A device in a flotation apparatus of such a nature that in a container a lower part of pulp is obtained, preferably containing the minerals zinc and lead and an upper part of foam which drains at an upper edge of the container, characterized in that the container has an upper wall consisting of two parts (1 and 2), which are inwardly directed, i.e. inclined towards each other, forming an opening, one part (1) extending past the opening and forming a wall part outside the opening and wherein the free end of the second part (2) is provided with an upright wall part which is opposite the outer wall part of said one part (1) so that a channel is formed, and towards which outer wall part (1) of the channel is directed one or several water jets and that the upper edge of the upwardly directed wall part of said second part (2) functions as a drain edge.
SE9200280A 1992-02-03 1992-02-03 Device at flotation apparatus SE508704C2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
SE9200280A SE508704C2 (en) 1992-02-03 1992-02-03 Device at flotation apparatus
FI943601A FI943601L (en) 1992-02-03 1993-02-02 Flotation device for ore enrichment
EP93904425A EP0725684A1 (en) 1992-02-03 1993-02-02 Flotation apparatus for concentrating ores
PCT/SE1993/000079 WO1993014876A1 (en) 1992-02-03 1993-02-02 Flotation apparatus for concentrating ores
NO942500A NO302157B1 (en) 1992-02-03 1994-07-01 Flotation device for ore preparation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9200280A SE508704C2 (en) 1992-02-03 1992-02-03 Device at flotation apparatus

Publications (3)

Publication Number Publication Date
SE9200280D0 SE9200280D0 (en) 1992-02-03
SE9200280L SE9200280L (en) 1993-08-04
SE508704C2 true SE508704C2 (en) 1998-10-26

Family

ID=20385175

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9200280A SE508704C2 (en) 1992-02-03 1992-02-03 Device at flotation apparatus

Country Status (5)

Country Link
EP (1) EP0725684A1 (en)
FI (1) FI943601L (en)
NO (1) NO302157B1 (en)
SE (1) SE508704C2 (en)
WO (1) WO1993014876A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2281521B (en) * 1993-09-06 1997-04-09 Supaflo Tech Pty Ltd Membrane washing apparatus for flotation device
RU2129049C1 (en) * 1996-11-10 1999-04-20 Сибирский научно-исследовательский институт углеобогащения Floatation machine
DE19905439C2 (en) * 1999-02-10 2001-01-25 Voith Sulzer Papiertech Patent Process for removing solids from an aqueous paper fiber suspension
FI115447B (en) * 2002-03-18 2005-05-13 Outokumpu Oy Flotation plant and method
US6793079B2 (en) * 2002-11-27 2004-09-21 University Of Illinois Method and apparatus for froth flotation
AU2009346778A1 (en) * 2009-05-26 2012-01-12 Newcastle Innovation Limited Improved method and apparatus for froth flotation in a vessel with agitation
CN102179309A (en) * 2010-12-27 2011-09-14 昆明理工大学 Foam controlling and flotation method for zinc oxide ore

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI78628C (en) * 1987-10-07 1989-09-11 Outokumpu Oy FLOTATIONSMASKIN.

Also Published As

Publication number Publication date
NO942500L (en) 1994-07-01
SE9200280L (en) 1993-08-04
FI943601A0 (en) 1994-08-02
FI943601A7 (en) 1994-08-02
EP0725684A1 (en) 1996-08-14
NO942500D0 (en) 1994-07-01
WO1993014876A1 (en) 1993-08-05
NO302157B1 (en) 1998-02-02
FI943601L (en) 1994-08-02
SE9200280D0 (en) 1992-02-03

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