DE2760246C2 - Apparatus for the flotation separation of solid particles from a liquid - Google Patents
Apparatus for the flotation separation of solid particles from a liquidInfo
- Publication number
- DE2760246C2 DE2760246C2 DE2760246A DE2760246A DE2760246C2 DE 2760246 C2 DE2760246 C2 DE 2760246C2 DE 2760246 A DE2760246 A DE 2760246A DE 2760246 A DE2760246 A DE 2760246A DE 2760246 C2 DE2760246 C2 DE 2760246C2
- Authority
- DE
- Germany
- Prior art keywords
- air
- foam
- cell
- cells
- liquid
- 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.)
- Expired
Links
- 238000005188 flotation Methods 0.000 title claims description 9
- 239000007788 liquid Substances 0.000 title claims 12
- 238000000926 separation method Methods 0.000 title claims 9
- 239000002245 particle Substances 0.000 title claims 5
- 239000007787 solid Substances 0.000 title claims 4
- 239000006260 foam Substances 0.000 claims description 37
- 238000011084 recovery Methods 0.000 claims description 9
- 229920001131 Pulp (paper) Polymers 0.000 claims description 7
- 239000000725 suspension Substances 0.000 claims description 6
- 239000000356 contaminant Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 239000012535 impurity Substances 0.000 claims 2
- 239000000126 substance Substances 0.000 claims 2
- 238000009423 ventilation Methods 0.000 claims 2
- 241001092591 Flota Species 0.000 claims 1
- 238000005273 aeration Methods 0.000 claims 1
- 238000000605 extraction Methods 0.000 claims 1
- 239000012530 fluid Substances 0.000 claims 1
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 239000008258 liquid foam Substances 0.000 claims 1
- 239000010893 paper waste Substances 0.000 claims 1
- 238000002360 preparation method Methods 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000004140 cleaning Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000008021 deposition Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 101150066375 35 gene Proteins 0.000 description 1
- 101150107341 RERE gene Proteins 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/30—Defibrating by other means
- D21B1/32—Defibrating by other means of waste paper
- D21B1/325—Defibrating by other means of waste paper de-inking devices
- D21B1/327—Defibrating by other means of waste paper de-inking devices using flotation devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/02—Foam dispersion or prevention
-
- 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
-
- 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
-
- 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
- B03D1/1418—Flotation machines using centrifugal forces
-
- 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
- B03D1/1456—Feed mechanisms for the slurry
-
- 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
-
- 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
- B03D1/1475—Flotation tanks having means for discharging the pulp, e.g. as a bleed stream
-
- 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
- B03D1/1487—Means for cleaning or maintenance
-
- 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
- B03D1/24—Pneumatic
- B03D1/247—Mixing gas and slurry in a device separate from the flotation tank, i.e. reactor-separator type
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/66—Pulp catching, de-watering, or recovering; Re-use of pulp-water
- D21F1/70—Pulp catching, de-watering, or recovering; Re-use of pulp-water by flotation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/26—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof
- C02F2103/28—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof from the paper or cellulose industry
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/64—Paper recycling
Description
-3 4-3 4
wird, wobei der Auslauf für den Schaum aus einem axial zentrisch in dem zentralen Schaumabzugskanal 12 monin der Zelle angeordneten Abfuhrungskanal besteht, tiert und bedient sämtliche übereinandei gesetzten ZeI-is, the outlet for the foam from an axially centric in the central foam discharge duct 12 monin the discharge channel arranged in the cell, feeds and serves all cells placed one on top of the other
welcher durch den Boden der Zelle geführt ist und nach len. Die dem Schaumabzug dienende Luft wird durchwhich is passed through the bottom of the cell and after len. The air used to extract the foam is passed through
oben bis zur Höhe des besagten Schaumes reicht Das die öffnung 17 in die Zelle eingeführt und verläßt dieseThe opening 17 is inserted into the cell and leaves it at the top up to the level of the said foam
besagte Luftrückgewinnungsrohr ist bevorzugt axial in- 5 durch Auslauf 18, wobei sie den Schaum mitreißt, dersaid air recovery tube is preferably axially in 5 through outlet 18, entraining the foam that
nerhalb des Abführungskanals angeordnet, der am unte- durch Schwerkraft in den Trichter 13 fällt, während dieArranged within the discharge channel, which falls at the bottom by gravity into the funnel 13, while the
ren Ende eine öffnung für die Aufnahme von Luft auf- Lbit durch das Rohr 16 entweicht Dieses Rohr reicht inRen end has an opening for the intake of air. Lbit escapes through the pipe 16. This pipe extends into
weist und am oberen Ende mit der besagten Saugvor- die benachbarte Zelle 2 hinein und bildet einen sich nachand at the upper end with the said suction front the adjacent cell 2 and forms one itself
richtung verbunden ist oben verengenden Kegel der konzentrisch gegenüberDirection connected is above the narrowing cone of the concentric opposite
Ein bereits erprobter Apparat besteht aus mehreren 10 dem breiteren Rohr angeordnet ist durch das die LuftAn apparatus that has already been tried and tested consists of several 10, the wider tube through which the air is arranged
axial übereinander angeordneten Zellen, wobei für meh- rückgewonnen wird, welche dem Schaumabzug aus die-cells arranged axially one above the other, whereby for more it is recovered, which is
rere Zellen ein gemeinsamer Abführungskanal vorhan- ser benachbarten Zelle sowie aus den übrigen Zellen 3,rere cells have a common discharge channel from the adjacent cell and from the remaining cells 3,
den ist 4 dient Die Bauteile des Rohres 16 bilden einen Zyklon,den ist 4 is used The components of the pipe 16 form a cyclone,
Weitere Besonderheiten und Einzelheiten der Erfin- der durch seine Form den Schaum zentrifugierend be-Further special features and details of the inventors, due to its shape, load the foam centrifugally
dung ergeben sich aus der Beschreibung eines erfin- 15 schleunigt und ihn somit von der Luft trennt die untertion result from the description of an invented 15 accelerates and thus separates it from the air the under
dungsgemäßen Apparates unter Bezugnahme auf die der Einwirkung der Saugvorrichtung 15 in dieses ange-according to the apparatus with reference to the action of the suction device 15 in this
Zeichnung, die lediglich ein Beispiel einer Ausführungs- saugt wird. Von dort aus wird die Luft der Leitung 14Drawing that is just an example of an execution sucks. From there, the air in line 14
form der Erfindung darstellt die sich vor allem für das wieder zugeleitet und erneut zum Abziehen desThe form of the invention is mainly for the fed back and again for pulling off the
Abscheiden von Druckfarbe aus Papiermasse auf Altpa- Schaums eingesetztDeposition of printing ink from paper pulp on Altpa foam is used
piergrundlageeignet 20 Die in Zelle 1 teilweise gereinigte Papiermasse trittSuitable for piercing bases 20 The paper pulp, which has been partially cleaned in cell 1, enters
— Fi g. 1 ist die schematische Längsansicht eines Ap- über Leitung 19 aus, in die eine Druckpumpe 20 eingeparates mit mehreren Etagen; schaltet ist Die Leitung 19 reicht in die Mischkammer- Fi g. 1 is the schematic longitudinal view of an Ap via line 19 from, in which a pressure pump 20 is incorporated with several floors; is switched The line 19 extends into the mixing chamber
— F i g. 2 ist der Horizontalschnitt entlang Linie H-II der nächstfolgenden Zelle 4 hinein, die sich in der letzten von F i g. 1. . Turmetage befindet; der hier ablaufende Vorgang ist- F i g. 2 is the horizontal section along line H-II of the next following cell 4, which is in the last of FIG. 1. . Tower days is located; the process taking place here is
In diesen Figuren tragen die gleichen Bauteile jeweils 25 identisch mit dem in der ersten Zelle bzw. in den nach-In these figures, the same components each have 25 identical to the one in the first cell or in the subsequent
die gleichen Kennummern. folgenden Zellen.the same identification numbers. following cells.
Der Apparat besteht aus vier Flotationszellen 1,2,3, Die Papiermasse bzw. das Wasser, welches zuneh-The apparatus consists of four flotation cells 1,2,3, the paper pulp or the water, which increases
4. Diese Zellen sind ringförmig und axial übereinander- mend sauberere Fasern enthält, wird nacheinander in4. These cells are annular and axially superimposed- containing cleaner fibers, one after the other
gesetzt so daß sie die vier Etagen eines Turms mit meh- diese Zellen aufgegeben, während der in den übrigenset so that they abandoned the four floors of a tower with meh- these cells, while those in the rest
reren Böden 5 bildea Natürlich könnte dieser Turm 30 Zellen aufgefangene Schaum seinerseits wieder in diereren bottoms 5 forma Of course, this tower 30 could in turn return the foam to the cells
auch mehr oder weniger als vier Etagen haben. unterste Zelle eingesetzt wird.also have more or less than four floors. lowest cell is used.
Die entfaserte und chemisch vorbehandelte Papier- Der Schaum, der die Rückstände aus der ersten ZelleThe defibered and chemically pretreated paper- The foam that removes the residues from the first cell
masse, bei der es sich um eine faserige, mit einem Schau- und aus den übrigen Zellen enthält, kann natürlich ent-mass, which is a fibrous one, with a show and from the remaining cells, can of course be
mungsmittel versetzte Suspension handelt, wird mit HiI- weder wiedereingesetzt oder auf jeder Etage abgczo-medium-mixed suspension is not reinstated or removed on each floor.
fe einer Pumpe 6 durch eine Leitung 7 dem Eintritt von 35 gen werden zwecks Behandlung in einer getrenntenfe a pump 6 through a line 7 the inlet of 35 gene for the purpose of treatment in a separate
Zelle 1 zugeführt nachdem sie zunächst eine Mischkam- Einrichtung, je. nach Art des Erzeugnisses, für das dieCell 1 is supplied after initially having a Mischkam device, depending. according to the type of product for which the
mer 8 durchlaufen hat Diese Kammer besteht aus ei- Masse vorgesehen ist.mer 8 has gone through this chamber consists of a mass is provided.
nem engen Durchlaß, wo die faserige Suspension in Zum erfindungsgemäßen Apparat gehört im weiteren Form eines Films durchläuft wobei gleichzeitig Luft ein Deckel 40, der die Zelle auf der letzten Etage absenkrecht zur Strömungsrichtung dieses Papiermassen- 40 schließt; ein Kontrollfenster 41, das zur Reinigung rasch films oder entlang einem entsprechenden Abschnitt abgenommen werden kann; ein Entleerungsventil 42 für durch Leitung 9 zugeführt wird; Leitung 9 ist unter Zwi- jede Zelle; ein Ventil 46 in der Luftleitung für das Abzieschenschaltung eines Hahns 10 mit einer nicht darge- hen des Schaums; ein Boden 43 im Rohr 12 zur Aufnahstellten Druckluftquelle verbunden. me der wiedereingesetzten Rückstände; eine Leitung 44nem narrow passage where the fibrous suspension in the apparatus according to the invention belongs in the further In the form of a film, air passes through a lid 40, which lowers the cell on the last floor to the direction of flow of this paper pulp 40 closes; a control window 41 for cleaning quickly films or can be removed along a corresponding section; a drain valve 42 for is fed through line 9; Line 9 is between each cell; a valve 46 in the air line for the pulling circuit a tap 10 with a foam not shown; a floor 43 in the tube 12 for receiving Compressed air source connected. me of the reintroduced residues; a line 44
Die Mischkammer 8 steht durch eine Leitung mit der 45 zum Abzug dieser Rückstände in Zelle 1 und eine Leiringförmigen
£elle 1 in Verbindung; Leitung U mündet tung 45 zum Abzug der Masse aus Zelle 2, wo die am
tangential in die zylindrische Wandung der Zelle nahe weitesten gereinigte Masse behandelt wird
an ihrem Bodln 5 ein, so daß eine Drehbewegung der Die Erfindung bezieht sich insbesondere auf einen
faserigen Suspension um den zentral angeordneten Ka- Apparat zur Abscheidung von Druckfarbe aus Papiernal
12 der ringförmigen Zelle bewirkt wird. Die in der 50 masse. Sie kann indessen auch auf andere Bereiche anSuspension
erzeugten Luftblasen heften sich an die Ver- gewendet werden, wie etwa zur Reinigung von Mineraunreinigungtfn
und befördern sie in Form von Schaum lien oder zur Reinigung von Umlaufwasser bei der FIoan
die Oberfläche. Der Schaum wird über Auslauf 18 aus tation von Fasern.The mixing chamber 8 is connected by a line to the 45 for drawing off these residues in cell 1 and a le-ring-shaped elle 1; Line U leads to device 45 for the removal of the mass from cell 2, where the mass which has been cleaned most tangentially into the cylindrical wall of the cell is treated
The invention relates in particular to a fibrous suspension around the centrally arranged ca apparatus for the deposition of printing ink from paper core 12 of the ring-shaped cell. The ones in the 50 bulk. However, it can also be used to attach air bubbles generated on the suspension to other areas, such as for cleaning mineral contaminants and convey them to the surface in the form of foams or for cleaning circulating water. The foam is made of fibers via outlet 18.
der Zelle abgezogen und zum Teil durch dta Drehbewe- Es liegt auf der Hand, daß sich diese Erfindung nichtpeeled off the cell and partly by dta rotary movement. It is obvious that this invention is not
gung der Suspension bzw. zum anderen Teil durch einen 55 ausschließlich auf die dargestellte Ausführungsform be-supply of the suspension or to the other part by a 55 exclusively based on the illustrated embodiment
darüber erzeugten Luftstrom in den Kanal 12 ge- schränkt, sondern daß viele Abwandlungen in der Form,air flow generated above it in the channel 12, but that many modifications in the form,
schleust Eine senkrechte Platte 50, die über dem Füll- Anordnung und Beschaffenheit gewisser, zur Konstruk-a vertical plate 50, which above the filling arrangement and condition of certain, for the construction
stand der Papiermasse angeordnet ist, lenkt den Schaum tion benötigter Bauelemente möglich sind, ohne daßstood the paper pulp is arranged, directs the foam tion required components are possible without
zum Austritt Der Schaum wird in einem Trichter 13 von dem Gedanken der vorliegenden Erfindung abge-to exit The foam is discharged in a funnel 13 from the idea of the present invention.
aufgefangen, der durch den Kanal 12 umfaßt wird; dann 60 wichen wird.captured, which is encompassed by the channel 12; then 60 will give way.
gelangt der Schaum in einen mit Wasser gefüllten Rück- the foam reaches a back filled with water
Standsbehälter 37. Der dem Abziehen des Schaums die- Hierzu 2 Blatt ZeichnungenFree-standing container 37. The one to remove the foam - 2 sheets of drawings
nende Luftstrom wird dem oberen Zellenabschnitt nending airflow is the top cell section
durch Leitung 14 zugeführt, die mit einer Saugvorrichtung 15 verbunden ist; diese Vorrichtung befindet sich 65
über einem axial angeordneten, sich kegelförmig verjüngenden Rohr 16, das der Rückgewinnung der Luft
zum Abziehen des Schaums dient. Dieses Rohr ist kon-fed through line 14 connected to a suction device 15; this device is located 65
over an axially arranged, conically tapering tube 16, which is used for the recovery of the air
serves to pull off the foam. This pipe is con-
Claims (8)
aus einer Saugvorrichtung (15) und einem Luftrück- Ein Apparat diesel Art ist für die Entfernung von gewinnungsrohr (16) für die Schaumabblasluft und 20 Druckfarbe, aus Papiermasse, die aus Altpapier hergefür die aus dem Schaum in Freiheit gesetzte Luft stellt wurde, bekannt Es wird Luft direkt in den Zelleribesteht boden gesaugt, und zwar durch Ansaugen mittels einerner, preferably several predominantly ring-shaped flotation cells with an inlet for the to The present invention relates to an apnealing liquid, ventilation device for preparation for flotation separation of impurities, generating an air flow for the purpose of forming air in the form of solid particles in a Liquid contain bubbles in the liquid to which the particles are attached. This apparatus consists of at least one, upstream, which float in the liquid and preferably form several predominantly ring-shaped flota surface foam, outlets for the ionic cells with an inlet for the liquid to be removed from the foam and outlets for the smoothness, aeration device for generation A low liquid, characterized in that air flow for the purpose of forming air bubbles in the flow, that the flotation cells foam blow-off device, to which the particles that have in the flow attach themselves, through which the foam floats by means of air flow, and a surface foam upwards and downwards an outlet (18) into a channel (12), outlets for the discharge of the foam and which can be blown, and that the foam blow-off device outlets for the purified liquid
from a suction device (15) and an air return An apparatus of this type is known for the removal of recovery pipe (16) for the foam blow-off air and 20 printing ink, from paper pulp made from waste paper for the air released from the foam air is sucked directly into the cellar floor, namely by sucking it in with a
lung der zu reinigenden Flüssigkeit in hintereinander 55 Der Apparat gemäß dem Oberbegriff des Hauptangeschalteten Zellen Rohre (19) und Pumpen (20) zur spruchs ist erfindungsgemäß dadurch gekennzeichnet, Verbindung des Auslasses für gereinigte Flüssigkei- daß die Flotationszellen Schaumabblaseinrichtungen ten aus jeder Zelle zu den Einlassen (Ha) der Ubri- besitzen, durch die der Schaum mittels Luft vorwärts gen Zellen — ausgenommen zu einer dieser Zellen und zu einem Auslauf in einen Kanal abgeführt wird, — vorhanden sind. 60 und daß die Schaumabblaseinrichtung aus einer Saug-The invention solves the problem of providing an apparatus for the ventilation device with control devices for the flotation separation available, the oh-size of the bubbles generated by air injection ne mechanically moving parts for the separation of the is equipped that for multiple handling foam comes from the purified liquid
The apparatus according to the preamble of the main connected cells pipes (19) and pumps (20) according to the invention is characterized according to the invention, connection of the outlet for cleaned liquids, that the flotation cells foam blow-off devices from each cell to the inlets (Ha) of the Ubri, through which the foam is carried forward by means of air into cells - with the exception of one of these cells and to an outlet in a channel - are present. 60 and that the foam blow-off device consists of a suction
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE166085A BE840662A (en) | 1976-04-12 | 1976-04-12 | METHOD AND INSTALLATION FOR THE REMOVAL BY FLOTATION OF IMPURITIES IN THE FORM OF SOLID PARTICLES, CONTAINED IN A LIQUID |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2760246C2 true DE2760246C2 (en) | 1985-09-12 |
Family
ID=3842869
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2760246A Expired DE2760246C2 (en) | 1976-04-12 | 1977-03-24 | Apparatus for the flotation separation of solid particles from a liquid |
DE2712947A Expired DE2712947C2 (en) | 1976-04-12 | 1977-03-24 | Injection flotation |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2712947A Expired DE2712947C2 (en) | 1976-04-12 | 1977-03-24 | Injection flotation |
Country Status (13)
Country | Link |
---|---|
JP (2) | JPS52124273A (en) |
AT (1) | AT358499B (en) |
BR (1) | BR7702266A (en) |
CA (1) | CA1096515A (en) |
CH (1) | CH614636A5 (en) |
DE (2) | DE2760246C2 (en) |
ES (1) | ES458029A1 (en) |
FI (1) | FI68093C (en) |
FR (2) | FR2347984A1 (en) |
GB (1) | GB1570345A (en) |
IT (2) | IT1073184B (en) |
NL (2) | NL180076C (en) |
SE (2) | SE425145B (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4157952A (en) * | 1978-03-24 | 1979-06-12 | Lenox Institute For Research | Apparatus for deinking waste paper pulp |
DE2836496C2 (en) * | 1978-08-21 | 1982-05-13 | E. & M. Lamort S.A., 51300 Vitry-le-François, Marne | Process and device for deinking pulp suspensions |
DE3111506C2 (en) * | 1981-03-24 | 1986-01-09 | Bergwerksverband Gmbh, 4300 Essen | Gas injection device for flotation systems |
DE3127290C2 (en) * | 1981-07-10 | 1986-10-30 | J.M. Voith Gmbh, 7920 Heidenheim | Flotation device for processing waste paper |
DE3320125A1 (en) * | 1983-06-03 | 1984-12-06 | J.M. Voith Gmbh, 7920 Heidenheim | METHOD AND DEVICE FOR PROCESSING WASTE PAPER |
US4613430A (en) * | 1984-01-30 | 1986-09-23 | Miller Francis G | Froth flotation separation method and apparatus |
AU3762285A (en) * | 1984-01-30 | 1985-08-08 | Miller, F.G. | Flotation separation apparatus and method |
DE3723502A1 (en) * | 1987-07-16 | 1989-01-26 | Henkel Kgaa | METHOD FOR FLOTATION OF FILLERS FROM WASTE PAPER |
DE3918025A1 (en) * | 1989-06-02 | 1990-12-06 | Bergwerksverband Gmbh | FLOTATION APPARATUS |
FR2772399B1 (en) * | 1997-12-15 | 2000-02-11 | Lamort E & M | PROCESS FOR DEINKING PAPER PULP FROM RECYCLED PAPER |
JP4802305B2 (en) * | 2009-07-17 | 2011-10-26 | 独立行政法人科学技術振興機構 | Floating separation apparatus and method, and manufacturing method of product using the same |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1483741B (en) * | The Zinc Corp Ltd , Melbourne, Vic toria (Australien) | Flotation cell without a stirrer for froth flotation of ores | ||
DE1922610B2 (en) * | 1969-05-03 | 1973-01-04 | Aktiengesellschaft Des Altenbergs Fuer Bergbau Und Zinkhuettenbetrieb, 5060 Bensberg-Untereschbach | Process and system for cyclone flotation with air lift aeration of the pulp |
DE2161015A1 (en) * | 1971-12-09 | 1973-06-20 | Escher Wyss Gmbh | FLOATING DEVICE FOR CLEANING A FIBER SUSPENSION BY FLOTATION IN THE PAPER INDUSTRY |
DE2420482A1 (en) * | 1974-04-27 | 1975-11-13 | Bergwerksverband Gmbh | METHOD AND SYSTEM FOR FLOTATION |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR668406A (en) * | 1928-01-24 | 1929-10-31 | Phosphate Recovery Corp | Improvements in the treatment of phosphatic materials |
US1805830A (en) * | 1929-05-20 | 1931-05-19 | Mason Charles Dorel | Foam destroyer |
US1952727A (en) * | 1929-10-26 | 1934-03-27 | United Verde Copper Company | Froth flotation |
US2874842A (en) * | 1955-04-05 | 1959-02-24 | Krofta Milos | Process and apparatus for waste liquid purification |
US3148948A (en) * | 1961-12-26 | 1964-09-15 | Dorr Oliver Inc | Cooling and defoaming phosphoric acid slurries |
DE1792539A1 (en) * | 1968-09-17 | 1971-11-25 | Dr Baer Eberhardt H | Process for the separation of emulsified or dispersed substances from water |
AU464321B2 (en) * | 1970-10-28 | 1975-08-07 | Aktiengesellschaft Des Altenbergs Furberg Bau Und Zinkhuttenbetrieb | Process and apparatus forthe flotation of fine-grained mixtures of material, particularly of minerals |
-
1977
- 1977-03-23 CH CH363277A patent/CH614636A5/en not_active IP Right Cessation
- 1977-03-24 FR FR7708842A patent/FR2347984A1/en active Granted
- 1977-03-24 DE DE2760246A patent/DE2760246C2/en not_active Expired
- 1977-03-24 DE DE2712947A patent/DE2712947C2/en not_active Expired
- 1977-03-30 FI FI770993A patent/FI68093C/en not_active IP Right Cessation
- 1977-04-04 CA CA275,438A patent/CA1096515A/en not_active Expired
- 1977-04-04 NL NL7703627A patent/NL180076C/en not_active IP Right Cessation
- 1977-04-06 ES ES458029A patent/ES458029A1/en not_active Expired
- 1977-04-07 GB GB14877/77A patent/GB1570345A/en not_active Expired
- 1977-04-08 IT IT4889477A patent/IT1073184B/en active
- 1977-04-08 AT AT247877A patent/AT358499B/en not_active IP Right Cessation
- 1977-04-11 BR BR7702266A patent/BR7702266A/en unknown
- 1977-04-12 JP JP4099577A patent/JPS52124273A/en active Granted
- 1977-04-12 SE SE7704203A patent/SE425145B/en not_active IP Right Cessation
-
1980
- 1980-11-29 JP JP55169014A patent/JPS6057903B2/en not_active Expired
-
1982
- 1982-04-22 SE SE8202540A patent/SE452121B/en not_active IP Right Cessation
-
1983
- 1983-04-18 FR FR8306300A patent/FR2544225B1/en not_active Expired
- 1983-06-10 IT IT4847683A patent/IT1218334B/en active
-
1986
- 1986-05-09 NL NL8601174A patent/NL8601174A/en not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1483741B (en) * | The Zinc Corp Ltd , Melbourne, Vic toria (Australien) | Flotation cell without a stirrer for froth flotation of ores | ||
DE1922610B2 (en) * | 1969-05-03 | 1973-01-04 | Aktiengesellschaft Des Altenbergs Fuer Bergbau Und Zinkhuettenbetrieb, 5060 Bensberg-Untereschbach | Process and system for cyclone flotation with air lift aeration of the pulp |
DE2161015A1 (en) * | 1971-12-09 | 1973-06-20 | Escher Wyss Gmbh | FLOATING DEVICE FOR CLEANING A FIBER SUSPENSION BY FLOTATION IN THE PAPER INDUSTRY |
DE2420482A1 (en) * | 1974-04-27 | 1975-11-13 | Bergwerksverband Gmbh | METHOD AND SYSTEM FOR FLOTATION |
Also Published As
Publication number | Publication date |
---|---|
FI68093B (en) | 1985-03-29 |
SE7704203L (en) | 1977-10-13 |
CA1096515A (en) | 1981-02-24 |
FR2544225A1 (en) | 1984-10-19 |
JPS5623659B2 (en) | 1981-06-01 |
JPS56161849A (en) | 1981-12-12 |
SE425145B (en) | 1982-09-06 |
NL7703627A (en) | 1977-10-14 |
DE2712947C2 (en) | 1985-10-10 |
FI68093C (en) | 1985-07-10 |
CH614636A5 (en) | 1979-12-14 |
NL180076B (en) | 1986-08-01 |
SE452121B (en) | 1987-11-16 |
AT358499B (en) | 1980-09-10 |
SE8202540L (en) | 1982-04-22 |
IT1218334B (en) | 1990-04-12 |
JPS6057903B2 (en) | 1985-12-17 |
GB1570345A (en) | 1980-07-02 |
ES458029A1 (en) | 1978-03-16 |
JPS52124273A (en) | 1977-10-19 |
FI770993A (en) | 1977-10-13 |
IT8348476A0 (en) | 1983-06-10 |
ATA247877A (en) | 1980-02-15 |
DE2712947A1 (en) | 1977-10-20 |
FR2347984A1 (en) | 1977-11-10 |
NL180076C (en) | 1987-01-02 |
FR2347984B1 (en) | 1983-08-26 |
BR7702266A (en) | 1977-12-06 |
NL8601174A (en) | 1986-09-01 |
FR2544225B1 (en) | 1988-11-18 |
IT1073184B (en) | 1985-04-13 |
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