EP2389251B1 - Procédé pour la séparation de particules dans une suspension épaisse aqueuse - Google Patents

Procédé pour la séparation de particules dans une suspension épaisse aqueuse Download PDF

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Publication number
EP2389251B1
EP2389251B1 EP09834182.9A EP09834182A EP2389251B1 EP 2389251 B1 EP2389251 B1 EP 2389251B1 EP 09834182 A EP09834182 A EP 09834182A EP 2389251 B1 EP2389251 B1 EP 2389251B1
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Prior art keywords
teeter water
teeter
inner space
discharging
fluid connection
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EP09834182.9A
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German (de)
English (en)
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EP2389251A1 (fr
EP2389251A4 (fr
Inventor
Timo Niitti
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Outotec Finland Oy
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Outotec Finland Oy
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Priority to PL09834182T priority Critical patent/PL2389251T3/pl
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Publication of EP2389251A4 publication Critical patent/EP2389251A4/fr
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    • 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
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
    • B03B5/62—Washing granular, powdered or lumpy materials; Wet separating by hydraulic classifiers, e.g. of launder, tank, spiral or helical chute concentrator type
    • B03B5/623—Upward current classifiers
    • 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
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
    • B03B5/62—Washing granular, powdered or lumpy materials; Wet separating by hydraulic classifiers, e.g. of launder, tank, spiral or helical chute concentrator type
    • B03B5/66—Washing granular, powdered or lumpy materials; Wet separating by hydraulic classifiers, e.g. of launder, tank, spiral or helical chute concentrator type of the hindered settling type

Definitions

  • the invention relates to a method for separating particles in hydrous slurry.
  • the present invention relates to a hindered-bed separator or hindered-bed settler or similar separator or settler apparatus (hereinafter “hindered-bed settler”) to partition solid particles in a hydrous slurry or pulp into two or more fractions containing particles of different size and density.
  • hindered-bed settler to partition solid particles in a hydrous slurry or pulp into two or more fractions containing particles of different size and density.
  • Many sizing and classifying methods employ gravity of solid material in hydrous slurry with an incoming feed containing the material encountering an upward teeter water flow.
  • the variation in size and/or density will result in heavier particles falling to a lower level of the hindered-bed settler and lighter particles being uplifted to an overflow level of the hindered-bed settler thus affecting the desired separation.
  • hindered-bed settlers are based on even distribution of a controlled amount of teeter water into an in inner space of the body of the hindered-bed separator with teeter water distributor means arranged in the inner space of the body of the hindered-bed separator.
  • teeter water is pumped into teeter pipes of the teeter water distributor means from one side only, but if the water is "dirty" and contains for example much fine solids, the teeter water pipes will get clogged because of the fine solids settling at the end of the teeter pipe where the flow velocity is lowest.
  • the aim of the invention is to solve the above-identified problem.
  • a first alternative of the method for separating particles in hydrous slurry of the invention is characterized by the definitions of independent claim 1.
  • a second alternative of the method for separating particles in hydrous slurry of the invention is characterized by the definitions of independent claim 6.
  • the invention is based on discharging part of the teeter water that is fed into the teeter water distributor means by using a teeter water discharging means that is in fluid connection with the teeter water distributor means.
  • a teeter water discharging means that is in fluid connection with the teeter water distributor means.
  • This means for example that a certain amount of teeter water is fed into the teeter water distributor means. This amount can for example be the double compared to the amount actually used for teetering in the hindered-bed separator, so the other half just runs through the teeter water pipes of the teeter water distributor means inside the hindered-bed separator.
  • both the intake pipe for feeding teetering water to the teeter water distributor means and the return pipe for leading teetering water from the teeter water discharging means is provided with a flow measuring means, such as a flow meter, for measuring the flow before the hindered-bed separator and respectively for measuring the flow after the hindered-bed separator.
  • a flow measuring means such as a flow meter
  • the amount of teeter water entering the inner space of the body of the hindered-bed separator and correspondingly the amount of teeter water flowing through the inner space of the body of the hindered-bed separator is controlled by a valve means such as an automatic valve in the return pipe.
  • the invention relates to a method for separating particles (not shown in the figures) in hydrous slurry 38.
  • the method for separating particles in hydrous slurry 38 comprises a step for using a hindered-bed separator comprising a body 2 defining an inner space 3, feed well means 4 for introducing hydrous slurry 38 into the inner space 3 of the body 2, overflow launder means 5 for discharging light particles 34 from the inner space 3 of the body 2, coarse feed means 6 for discharging heavy particles 35 from the inner space 3 of the body 2, and teeter water distributor means 7 comprising teeter water pipes 8 arranged in the inner space 3 of the body 2 for introducing teeter water 9 into the inner space 3 of the body 2.
  • the method includes a step for introducing hydrous slurry 38 into the inner space 3 of the body 2.
  • the method includes steps for feeding teeter water 9 into the teeter water distributor means 7 and introducing teeter water 9 into the inner space 3 of the body 2 by means of the teeter water distributor means 7.
  • the amount of teeter water 9 fed into the teeter water distributor means 7 exceeds preferably, but not necessarily, the amount of teeter water 9 needed for the separation process performed in the inner space 3 of the body 2 of the hindered-bed separator.
  • the method includes a step for feeding between about 110 % to about 200 %, for example between about 125 % to about 150 %, the amount of teeter water 9 into the teeter water distributor means 7 of the amount of teeter water 9 that is needed for the separation process performed in the inner space 3 of the body 2 of the hindered-bed separator 1.
  • the method includes a step for discharging light particles 34 from the inner space 3 of the body 2.
  • the method includes a step for discharging heavy particles 35 from the inner space 3 of the body 2.
  • the method includes a step for connecting at least one teeter water pipe 8 of the teeter water distributor means 7 in fluid connection with a teeter water discharging means 10.
  • the method includes a step for discharging teeter water 9 from the at least one teeter water pipe 8 that is in fluid connection with the teeter water discharging means 10 to the teeter water discharging means 10.
  • the method includes preferably a step for connecting all teeter water pipes 8 of the teeter water distributor means 7 in fluid connection with a teeter water discharging means 10 and a step for discharging teeter water from all teeter water pipes 8 to the teeter water discharging means 10.
  • the method comprises in a preferable embodiment of the method using a hindered-bed separator 1 having a teeter water distributor means 7 having at least one teeter water pipe 8 that has a first end 11, which is in fluid connection with a first manifold 12 configured for receiving teeter water 9 from an intake pipe 32 and configured for distributing teeter water 9 to the at least one teeter water pipe 8 that is in fluid connection with the first manifold 12, and which has an opposite second end 13.
  • This preferred embodiment of the method of the invention comprises a step for connecting the opposite second end 13 of the at least one teeter water pipe 8 that is in fluid connection with the first manifold 12, in fluid connection with the teeter water discharging means 10.
  • This preferred embodiment of the method of the invention comprises preferably a step for connecting the opposite second end 13 of the at least one teeter water pipe 8 that is in fluid connection with the first manifold 12, in fluid connection with a second manifold 14 of the teeter water discharging means 10.
  • the method comprises in a preferable embodiment of the method using a hindered-bed separator 1 having a teeter water distributor means 7 having several teeter water pipes 8 each having a first end 11, which is in fluid connection with a first manifold 12 configured for receiving teeter water 9 from an intake pipe 32 and configured for distributing teeter water 9 to the several teeter water pipes 8 that are in fluid connection with the first manifold 12, and each of which teeter water pipes 8 has a opposite second end 13.
  • This preferred embodiment of the method of the invention comprises a step for connecting the opposite second end 13 of each teeter water pipe 8, which are in fluid connection with the first manifold 12, in fluid connection with the teeter water discharging means 10.
  • This preferred embodiment of the method of the invention comprises preferably a step for connecting the opposite second end 13 of each teeter water pipe 8, which are in fluid connection with the first manifold 12, in fluid connection with a second manifold 14 of the teeter water discharging means 10.
  • the method comprises in a first alternative of the method a step for arranging a first valve means 15 to the teeter water discharging means 10 to adjust the amount of teeter water 9 that is discharged from the teeter water discharging means 10.
  • This first alternative of the method includes a step for measuring by means of a first flow measuring means 17 the amount of inflowing teeter water 9 flowing into the teeter water distributor means 7 and a step for measuring by means of a second flow measuring means 19 the amount of outflowing teeter water 9 flowing from the teeter water discharging means 10.
  • This first alternative of the method includes a step for calculating the difference between the inflowing teeter water 9 and the outflowing teeter water 9, and a step for controlling the first valve means 15 in accordance with the calculated difference to adjust the flow in the teeter water discharging means 10, in other words to adjust the flow of teeter water 9 flowing through the inner space 3 of the body 2 of the hindered-bed separator 1.
  • Figure 3 and 5 illustrates arrangements suitable for this first alternative of the method.
  • the amount of teeter water entering the inner space 3 of the body 2 of the hindered-bed separator 1 can also be calculated by means of the calculated difference, i.e. the amount of teeter water 9 going into the separation process can also be calculated from the calculated difference.
  • a preferable embodiment of the first alternative of the method includes a step for measuring by means of a pressure measuring means 39 the pressure of inflowing teeter water 9 flowing into the teeter water distributor means 7.
  • This preferable embodiment of the first alternative of the method includes a step for controlling the first valve means 15 in accordance with the measured pressure to adjust the flow in the teeter water discharging means 10, in other words to adjust the flow of teeter water flowing through the inner space 3 of the body 2 of the hindered-bed separator.
  • Figure 3 and 4 illustrate arrangements suitable for this preferred embodiment of the first alternative of the method.
  • a preferable embodiment of the first alternative of the method of the invention includes steps for controlling the first valve means 15 by means of a timer 40 for example according to a pre-set time schedule.
  • Figure 3 and 8 illustrate arrangements suitable for this preferred embodiment of the first alternative of the method.
  • the method comprises in a second alternative of the method a step for arranging a second valve means 16 in the at least one teeter water pipe 8 that is in fluid connection with the teeter water discharging means 10.
  • This second alternative of the method of the invention includes a step for measuring by means of a first flow measuring means 17 the amount of inflowing teeter water 9 flowing into said at least one teeter water pipe 8 that is in fluid connection with the teeter water discharging means 10 and a step for measuring by means of a second flow measuring means 19 the amount of outflowing teeter water 9 flowing from said at least one teeter water pipe 8 that is in fluid connection with the teeter water discharging means 10.
  • This second alternative of the method of the invention includes a step for calculating the difference between the inflowing teeter water 9 and the outflowing teeter water 9 and a step for controlling the second valve means 16 in accordance with the calculated difference to adjust the flow in said at least one teeter water pipe 8 that is in fluid connection with the teeter water discharging means 10, in other words to adjust the flow of teeter water flowing through the inner space 3 of the body 2 of the hindered-bed separator 1 in said at least one teeter water pipe 8 that is in fluid connection with the teeter water discharging means 10.
  • a preferable embodiment of the second alternative of the method of the invention includes steps for measuring by means of a first pressure measuring means 39 the pressure of teeter water 9 flowing into said teeter water pipe 8 that is in fluid connection with the teeter water discharging means 10 and for controlling the second valve means 16 in accordance with the measured pressure to adjust the flow in said at least one teeter water pipe 8 that is in fluid connection with the teeter water discharging means 10, in other words to adjust the flow of teeter water flowing through the inner space 3 of the body 2 of the hindered-bed separator 1 in said at least one teeter water pipe 8 that is in fluid connection with the teeter water discharging means 10.
  • Figure 10 illustrate an arrangement suitable for this preferred embodiment of the second alternative of the method.
  • a preferable embodiment of the second alternative of the method of the invention includes steps for controlling the second valve means 16 with a timer 40 for example in accordance with a pre-set schedule.
  • Figure 9 illustrates an arrangement suitable for this preferred embodiment of the second alternative of the method.
  • the method comprises in a preferable embodiment of the second alternative of the method a step for arranging second valve means 16 in all the teeter water pipes 8 that are in fluid connection with the teeter water discharging means 10.
  • This preferable embodiment of the second alternative of the method of the invention includes a step for individually measuring the amount of inflowing teeter water 9 flowing into each teeter water pipe 8 that are in fluid connection with the teeter water discharging means 10 and a step for individually measuring the amount of teeter water 9 flowing out from each teeter water pipe 8 that are in fluid connection with the teeter water discharging means 10 into the teeter water discharging means 10.
  • This preferable embodiment of the second alternative of the method of the invention includes a step for calculating the difference between the inflowing teeter water and the outflowing teeter water in each individual teeter water pipe 8 that are in fluid connection with the teeter water discharging means 10 and a step for controlling each second valve means 16 in each teeter water pipe 8 that are in fluid connection with the teeter water discharging means 10 in accordance with the calculated difference to individually adjust the flow in each teeter water pipe 8 that are in fluid connection with the teeter water discharging means 10, in other words to individually adjust the flow of teeter water 9 flowing through the inner space 3 of the body 2 of the hindered-bed separator 1 in each individual teeter water pipe 8.
  • the method comprises in a preferable embodiment of the second alternative of the method a step for arranging second valve means 16 in all teeter water pipes 8 that are in fluid connection with the teeter water discharging means 10.
  • This preferable embodiment of the second alternative of the method of the invention includes a step for measuring the pressure of teeter water 9 flowing into each teeter water pipe 8 that are in fluid connection with the teeter water discharging means 10 and for individually controlling each second valve means 16 in each teeter water pipe 8 in accordance with the measured pressure to individually adjust the flow in each teeter water pipe 8 that are in fluid connection with the teeter water discharging means 10, in other words to adjust the flow of teeter water 9 flowing through the inner space 3 of the body 2 of the hindered-bed separator 1 individually in each individual teeter water pipes 8.
  • the method comprises in a preferable embodiment of the second alternative of the method a step for arranging second valve means 16 in all the teeter water pipes 8 that are in fluid connection with the teeter water discharging means 10.
  • This preferable embodiment of the second alternative of the method of the invention includes a step for individually controlling each second valve means 16 in each teeter water pipe 8 with a timer 40 for example according to a pre-set time schedule.

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Claims (9)

  1. Procédé pour la séparation de particules dans une suspension épaisse aqueuse (38), ledit procédé comprenant les étapes consistant à :
    utiliser un séparateur à lit entravé (1) comprenant un corps (2) définissant un espace intérieur (3), un moyen de puits d'alimentation (4) pour introduire la suspension épaisse aqueuse (38) dans l'espace intérieur (3) du corps (2), un moyen de canal de débordement (5) pour évacuer les particules légères (34) de l'espace intérieur (3) du corps (2), un moyen d'amenée de matières grossières (6) pour évacuer les particules lourdes (35) de l'espace intérieur (3) du corps (2), et un moyen de distribution d'eau de fluidisation (7) comprenant des tuyaux d'eau de fluidisation (8) disposés dans l'espace intérieur (3) du corps (2) pour introduire l'eau de fluidisation (9) dans l'espace intérieur (3) du corps (2),
    introduire la suspension épaisse aqueuse (38) dans l'espace (3) intérieur du corps (2),
    amener l'eau de fluidisation (9) dans le moyen de distribution d'eau de fluidisation (7) et introduire de l'eau de fluidisation (9) dans l'espace intérieur (3) du corps (2) moyennant le moyen de distribution d'eau de fluidisation (7),
    évacuer les particules légères (34) de l'espace intérieur (3) du corps (2), et
    évacuer les particules lourdes (35) de l'espace intérieur (3) du corps (2),
    raccorder au moins un tuyau d'eau de fluidisation (8) du moyen de distribution d'eau de fluidisation (7) en communication fluidique avec un moyen d'évacuation d'eau de fluidisation (10),
    évacuer l'eau de fluidisation (9) à partir dudit au moins un tuyau d'eau de fluidisation (8), qui est en communication fluidique avec le moyen d'évacuation d'eau de fluidisation (10), vers le moyen d'évacuation d'eau de fluidisation (10),
    amener dans le moyen de distribution d'eau de fluidisation (1) une quantité d'eau de fluidisation (9) excédant la quantité d'eau de fluidisation (9) requise pour le processus de séparation réalisé dans l'espace intérieur (3) du corps (2) du séparateur à lit entravé (1),
    caractérisé par les étapes consistant à
    disposer un premier moyen de vanne (15) dans le moyen d'évacuation d'eau de fluidisation (10),
    évacuer l'eau de fluidisation (9) du moyen d'évacuation d'eau de fluidisation (10),
    piloter le premier moyen de vanne (15) pour varier la quantité d'eau de fluidisation (9) évacuée du moyen d'évacuation d'eau de fluidisation (10),
    mesurer la quantité d'eau de fluidisation (9) entrant dans le moyen de distribution d'eau de fluidisation (7) à partir d'un tuyau d'admission (32),
    mesurer la quantité d'eau de fluidisation (9) évacuée du moyen d'évacuation d'eau de fluidisation (10) vers un tuyau de retour (33),
    calculer la différence entre la quantité d'eau de fluidisation (9) entrant dans le moyen de distribution d'eau de fluidisation (7) et la quantité d'eau de fluidisation (9) évacuée du moyen d'évacuation d'eau de fluidisation (10), et
    piloter le premier moyen de vanne (15) selon la différence calculée pour varier la quantité d'eau de fluidisation (9) évacuée du moyen d'évacuation d'eau de fluidisation (10).
  2. Procédé selon la revendication 1, caractérisé par les étapes consistant à
    utiliser un séparateur à lit entravé (1) ayant un moyen de distribution d'eau de fluidisation (7) ayant au moins un tuyau d'eau de fluidisation qui a une première extrémité (11) qui est en communication fluidique avec un premier collecteur (12) configuré pour recevoir l'eau de fluidisation (9) venant d'un tuyau d'admission (32) et configuré pour distribuer l'eau de fluidisation (9) audit au moins un tuyau d'eau de fluidisation (8), et qui a une deuxième extrémité opposée (13), et
    raccorder la deuxième extrémité opposée (13) dudit au moins un tuyau d'eau de fluidisation (8) en communication fluidique avec le moyen d'évacuation d'eau de fluidisation (10).
  3. Procédé selon la revendication 2, caractérisé par l'étape consistant à
    raccorder la deuxième extrémité opposée (13) dudit au moins un tuyau d'eau de fluidisation (8) en communication fluidique avec un deuxième collecteur (14) du moyen d'évacuation d'eau de fluidisation (10).
  4. Procédé selon l'une des revendications 1 à 3, caractérisé par les étapes consistant à
    mesurer la pression de l'eau de fluidisation (9) entrant dans le moyen de distribution d'eau de fluidisation (7), et
    piloter le premier moyen de vanne (15) selon la pression mesurée pour varier la quantité d'eau de fluidisation (9) évacuée du moyen d'évacuation d'eau de fluidisation (10).
  5. Procédé selon l'une des revendications 1 à 4, caractérisé par l'étape consistant à piloter le premier moyen de vanne (15) avec un temporisateur (40) pour varier la quantité d'eau de fluidisation (9) évacuée du moyen d'évacuation d'eau de fluidisation (10).
  6. Procédé pour la séparation de particules dans une suspension épaisse aqueuse (38), ledit procédé comprenant les étapes consistant à
    utiliser un séparateur à lit entravé (1) comprenant un corps (2) définissant un espace intérieur (3), un moyen de puits d'alimentation (4) pour introduire la suspension épaisse aqueuse (38) dans l'espace intérieur (3) du corps (2), un moyen de canal de débordement (5) pour évacuer les particules légères (34) de l'espace intérieur (3) du corps (2), un moyen d'amenée de matières grossières (6) pour évacuer les particules lourdes (35) de l'espace intérieur (3) du corps (2), et un moyen de distribution d'eau de fluidisation (7) comprenant des tuyaux d'eau de fluidisation (8) disposés dans l'espace intérieur (3) du corps (2) pour introduire l'eau de fluidisation (9) dans l'espace intérieur (3) du corps (2),
    introduire la suspension épaisse aqueuse (38) dans l'espace intérieur (3) du corps (2),
    amener l'eau de fluidisation (9) dans le moyen de distribution d'eau de fluidisation (7) et introduire de l'eau de fluidisation (9) dans l'espace intérieur (3) du corps (2) moyennant le moyen de distribution d'eau de fluidisation (7),
    évacuer les particules légères (34) de l'espace intérieur (3) du corps (2), et
    évacuer les particules lourdes (35) de l'espace intérieur (3) du corps (2),
    raccorder au moins un tuyau d'eau de fluidisation (8) du moyen de distribution d'eau de fluidisation (7) en communication fluidique avec un moyen d'évacuation d'eau de fluidisation (10),
    évacuer l'eau de fluidisation (9) à partir dudit au moins un tuyau d'eau de fluidisation (8), qui est en communication fluidique avec le moyen d'évacuation d'eau de fluidisation (10), vers le moyen d'évacuation d'eau de fluidisation (10),
    amener dans le moyen de distribution d'eau de fluidisation (1) une quantité d'eau de fluidisation (9) excédant la quantité d'eau de fluidisation (9) requise pour le processus de séparation réalisé dans l'espace intérieur (3) du corps (2) du séparateur à lit entravé (1),
    caractérisé par les étapes consistant à
    disposer un deuxième moyen de vanne (16) dans au moins un tuyau d'eau de fluidisation (8) qui est en communication fluidique avec le moyen d'évacuation d'eau de fluidisation (10),
    piloter le deuxième moyen de vanne (16) pour varier la quantité d'eau de fluidisation (9) qui est évacuée dudit au moins un tuyau d'eau de fluidisation (8), qui est en communication fluidique avec le moyen d'évacuation d'eau de fluidisation (10), vers le moyen d'évacuation d'eau de fluidisation (10),
    mesurer la quantité d'eau de fluidisation (9) entrant dans ledit au moins un tuyau d'eau de fluidisation (8) qui est en communication fluidique avec le moyen d'évacuation d'eau de fluidisation (10),
    mesurer la quantité d'eau de fluidisation (9) évacuée dudit au moins un tuyau d'eau de fluidisation (8), qui est en communication fluidique avec le moyen d'évacuation d'eau de fluidisation (10), vers le moyen d'évacuation d'eau de fluidisation (10),
    calculer la différence entre l'eau de fluidisation (9) entrant dans ledit au moins un tuyau d'eau de fluidisation (8) qui est en communication fluidique avec le moyen d'évacuation d'eau de fluidisation (10) et l'eau de fluidisation (9) qui est évacuée dudit au moins un tuyau d'eau de fluidisation (8) qui est communication fluidique avec le moyen d'évacuation d'eau de fluidisation (10), et
    piloter le deuxième moyen de vanne (16) selon la différence calculée pour varier la quantité d'eau de fluidisation (9) évacuée dudit au moins un tuyau d'eau de fluidisation (8), qui est en communication fluidique avec le moyen d'évacuation d'eau de fluidisation (10), vers le moyen d'évacuation d'eau de fluidisation (10).
  7. Procédé selon la revendication 6, caractérisé par les étapes consistant à
    mesurer la pression de l'eau de fluidisation (9) entrant dans ledit au moins un tuyau d'eau de fluidisation (8) qui est en communication fluidique avec le moyen d'évacuation d'eau de fluidisation (10), et
    piloter le deuxième moyen de vanne (16) selon la pression mesurée pour varier la quantité d'eau de fluidisation (9) qui est évacuée dudit au moins un tuyau d'eau de fluidisation (8), qui est en communication fluidique avec le moyen d'évacuation d'eau de fluidisation (10), vers le moyen d'évacuation d'eau de fluidisation (10).
  8. Procédé selon la revendication 6 ou 7, caractérisé par l'étape consistant à
    piloter le deuxième moyen de vanne (16) avec un temporisateur (40) pour varier la quantité d'eau de fluidisation (9) évacuée dudit au moins un tuyau d'eau de fluidisation (8), qui est en communication fluidique avec le moyen d'évacuation d'eau de fluidisation (10), vers le moyen d'évacuation d'eau de fluidisation (10).
  9. Procédé selon l'une des revendications 1 à 8, caractérisé par l'étape consistant à amener dans le moyen de distribution d'eau de fluidisation (1) une quantité d'eau de fluidisation (9) comprise entre environ 110% et environ 200% de la quantité d'eau de fluidisation (9) requise pour le processus de séparation réalisé dans l'espace intérieur (3) du corps (2) du séparateur à lit entravé (1).
EP09834182.9A 2008-12-22 2009-12-22 Procédé pour la séparation de particules dans une suspension épaisse aqueuse Active EP2389251B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09834182T PL2389251T3 (pl) 2008-12-22 2009-12-22 Sposób separacji cząstek w zawiesinie wodnej

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20086227A FI121650B (fi) 2008-12-22 2008-12-22 Menetelmä vesipitoisessa lietteessä olevien hiukkasten erottamiseksi
PCT/FI2009/051027 WO2010072901A1 (fr) 2008-12-22 2009-12-22 Procédé pour la séparation de particules dans une suspension épaisse aqueuse et séparateur à lit entravé

Publications (3)

Publication Number Publication Date
EP2389251A1 EP2389251A1 (fr) 2011-11-30
EP2389251A4 EP2389251A4 (fr) 2014-06-18
EP2389251B1 true EP2389251B1 (fr) 2019-07-24

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CN (1) CN202570362U (fr)
CA (1) CA2747833A1 (fr)
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JP6142352B2 (ja) * 2012-12-18 2017-06-07 日立化成株式会社 分級装置、分級方法及び分級粒子の製造方法
CN109876922B (zh) * 2019-04-17 2023-12-05 刘明 实现干扰床分选机溢流脱泥的分级装置及分级方法
CN110180228A (zh) * 2019-06-28 2019-08-30 上海化工研究院有限公司 一种用于水处理过程的反重力式沉淀分离装置
CN112221692A (zh) * 2020-10-13 2021-01-15 中煤科工集团唐山研究院有限公司 一种低品位细粒级嵌布矿物富集分选装置
CN113649163B (zh) * 2021-07-15 2023-06-06 中煤科工集团唐山研究院有限公司 一种干扰床分选机的脉冲式连续排料装置及方法

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US3308951A (en) * 1964-12-03 1967-03-14 Continental Oil Co Secondary hindered settling column for hydrosizers

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GB2050201B (en) * 1979-05-21 1982-09-29 English Clays Lovering Pochin Process for concentrating mica
US6425485B1 (en) * 1998-03-26 2002-07-30 Eriez Magnetics Air-assisted density separator device and method
US6953123B2 (en) * 2002-06-19 2005-10-11 Outokumpu Oyj Pre-separation of feed material for hindered-bed separator

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3308951A (en) * 1964-12-03 1967-03-14 Continental Oil Co Secondary hindered settling column for hydrosizers

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FI121650B (fi) 2011-02-28
EP2389251A1 (fr) 2011-11-30
CA2747833A1 (fr) 2010-07-01
CN202570362U (zh) 2012-12-05
FI20086227A (fi) 2010-06-23
FI20086227A0 (fi) 2008-12-22
PL2389251T3 (pl) 2019-12-31
WO2010072901A1 (fr) 2010-07-01
EP2389251A4 (fr) 2014-06-18

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