Processing

Please wait...

Settings

Settings

1. WO2000043127 - TANGENTIAL SEPARATING DEVICE FOR SOLID MATTER

Publication Number WO/2000/043127
Publication Date 27.07.2000
International Application No. PCT/DE1999/002707
International Filing Date 25.08.1999
Chapter 2 Demand Filed 16.08.2000
IPC
B01D 21/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
21Separation of suspended solid particles from liquids by sedimentation
B03B 5/28 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
03SEPARATION 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
BSEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
5Washing granular, powdered or lumpy materials; Wet separating
28by sink-float separation
B03B 5/32 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
03SEPARATION 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
BSEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
5Washing granular, powdered or lumpy materials; Wet separating
28by sink-float separation
30using heavy liquids or suspensions
32using centrifugal force
B03B 11/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
03SEPARATION 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
BSEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
11Feed or discharge devices integral with washing or wet-separating equipment
B03D 1/14 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
03SEPARATION 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
DFLOTATION; DIFFERENTIAL SEDIMENTATION
1Flotation
14Flotation machines
B03D 3/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
03SEPARATION 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
DFLOTATION; DIFFERENTIAL SEDIMENTATION
3Differential sedimentation
CPC
B01D 21/0039
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
21Separation of suspended solid particles from liquids by sedimentation
0039Settling tanks provided with contact surfaces, e.g. baffles, particles
B01D 21/14
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
21Separation of suspended solid particles from liquids by sedimentation
10Settling tanks with multiple outlets for the separated liquids
12with moving scrapers
14with rotating scrapers
B01D 21/2411
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
21Separation of suspended solid particles from liquids by sedimentation
24Feed or discharge mechanisms for settling tanks
2405Feed mechanisms for settling tanks
2411having a tangential inlet
B01D 21/2427
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
21Separation of suspended solid particles from liquids by sedimentation
24Feed or discharge mechanisms for settling tanks
2427The feed or discharge opening located at a distant position from the side walls
B01D 21/2433
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
21Separation of suspended solid particles from liquids by sedimentation
24Feed or discharge mechanisms for settling tanks
2433Discharge mechanisms for floating particles
B01D 21/2444
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
21Separation of suspended solid particles from liquids by sedimentation
24Feed or discharge mechanisms for settling tanks
2444Discharge mechanisms for the classified liquid
Applicants
  • MERI ENTSORGUNGSTECHNIK FÜR DIE PAPIERINDUSTRIE GMBH [DE/DE]; Karlstrasse 57 D-80333 München, DE (AllExceptUS)
  • NIEMCZYK, Bernhard [DE/DE]; DE (UsOnly)
  • HEINZ, Robert [DE/DE]; DE (UsOnly)
  • MENKE, Lucas [DE/DE]; DE (UsOnly)
  • TROUBOUNIS, George [DE/DE]; DE (UsOnly)
Inventors
  • NIEMCZYK, Bernhard; DE
  • HEINZ, Robert; DE
  • MENKE, Lucas; DE
  • TROUBOUNIS, George; DE
Agents
  • LEWINSKY, Klaus ; Lewinsky & Partner GbR Gotthardstrasse 81 D-80689 München, DE
Priority Data
199 02 148.120.01.1999DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) TANGENTIALE FESTSTOFFABTRENNUNGS-VORRICHTUNG
(EN) TANGENTIAL SEPARATING DEVICE FOR SOLID MATTER
(FR) DISPOSITIF DE SEPARATION TANGENTIELLE DE MATIERES SOLIDES
Abstract
(DE)
Eine Vorrichtung sowie ein Verfahren zur chemisch-physikalischen Feststoffabtrennung aus einer Suspension mittels Flotation umfaßt in einem Trennbecken (12) einen rotationssymmetrischen Flockungs-/Strömungsreaktor (20), der im unteren Bereich am Umfang Austrittsöffnungen aufweist und in den exzentrisch mindestens ein Suspensionseinlaß (24) einmündet, welcher die zulaufende Suspension in den oberen Bereich des Flockungsreaktors (20) einleitet und dabei eine Zirkularströmung erzeugt, die aus dem Flockungsreaktor (20) nach unten tangential-radial über den äußeren Umfang in kreisförmig angeordnete Verteilerzellen (44) abfließt, welche die Tangentialkomponente der Suspensionsströmung zum Austritt in das Trennbecken (12) hin verstärken. Ein Vorteil der Erfindung besteht darin, daß die herkömmlicherweise rein radial nach außen gerichtete Gemischströmung aus Suspension und Luftbläschen aufgrund der tangentialen Strömungskomponente eine längere Wegstrecke zu den Auslaßöffnungen im Bereich der Beckenwandung zurücklegen muß, so daß aufgrund der längeren Wegstrecke bzw. der längeren Verweildauer im Trennbekken die Feststoffabtrennung wirksamer wird.
(EN)
The invention relates to a device and a method for chemically and physically separating solid materials from a suspension using flotation. A rotationally symmetrical flocculation/flow reactor (20) is provided with outlets in the lower part thereof and is arranged in a separating tank (12). At least one suspension inlet (24) extends eccentrically into said reactor. The supplied suspension is guided into the upper area of the flocculation reactor (20) via the suspension inlet (24). A circular flow is thus created which drains off from the flocculation reactor (20) downwards in a tangential and radial manner over the outer circumference into circularly arranged distribution cells (44) which reinforce the tangential component of the suspension flow when said flow is delivered into the separating tank (12). In prior art, the flow of the mixture consisting of the suspension and air-sacs extends radially outwards. One advantage of the invention is that said flow of the mixture has to travel a longer way to the outlets in the area of the wall of the tank due to the tangential flow component. The solid matter can be separated more effectively by virtue of the longer travel path or the longer presence in the separating tank.
(FR)
L'invention concerne un dispositif et un procédé de séparation par des moyens physico-chimiques, par flottation, de matières solides provenant d'une suspension. Le dispositif comprend, dans un bassin de séparation (12), un réacteur à floculation/écoulement (20), à symétrie de rotation, présentant à sa partie inférieure, sur sa périphérie, des orifices de sortie et dans lesquelles débouche excentriquement au moins une entrée de suspension (24) introduisant la suspension dans la partie supérieure du réacteur à floculation (20) et engendrant en même temps un courant circulaire, lequel s'écoule, à partir du réacteur à floculation (20), vers le bas, radialement et tangentiellement sur la périphérie extérieure, en cellules de répartition (44) agencées en forme de cercles, celles-ci renforçant la composante tangentielle du courant de suspension, vers la sortie, dans le bassin de séparation (12). L'invention présente, par rapport à la technique connue où le courant mixte formé d'une suspension et de bulles d'air s'étend uniquement radialement vers l'extérieur, l'avantage selon lequel ledit courant mixte doit, en raison de la composante tangentielle, parcourir une plus longue distance vers les orifices de sortie dans la zone des parois du bassin, de sorte que la séparation des matières solides est plus efficace par suite du plus long parcours et de la plus longue durée de séjour.
Latest bibliographic data on file with the International Bureau