EP2146167B1 - Dispositif et procédé destinés à enlever des fluides - Google Patents

Dispositif et procédé destinés à enlever des fluides Download PDF

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Publication number
EP2146167B1
EP2146167B1 EP08012666A EP08012666A EP2146167B1 EP 2146167 B1 EP2146167 B1 EP 2146167B1 EP 08012666 A EP08012666 A EP 08012666A EP 08012666 A EP08012666 A EP 08012666A EP 2146167 B1 EP2146167 B1 EP 2146167B1
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EP
European Patent Office
Prior art keywords
cell
opening
closing element
wall
particle
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.)
Active
Application number
EP08012666A
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German (de)
English (en)
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EP2146167A1 (fr
Inventor
Lothar Krell
Gerald Caspers
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BMA Braunschweigische Maschinenbauanstalt AG
Original Assignee
BMA Braunschweigische Maschinenbauanstalt AG
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.)
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Publication date
Priority to DE502008000807T priority Critical patent/DE502008000807D1/de
Application filed by BMA Braunschweigische Maschinenbauanstalt AG filed Critical BMA Braunschweigische Maschinenbauanstalt AG
Priority to DK08012666.7T priority patent/DK2146167T3/da
Priority to EP08012666A priority patent/EP2146167B1/fr
Priority to AT08012666T priority patent/ATE471493T1/de
Priority to CN200980127379.XA priority patent/CN102099649B/zh
Priority to PCT/EP2009/058977 priority patent/WO2010007057A1/fr
Priority to US13/003,976 priority patent/US8844162B2/en
Publication of EP2146167A1 publication Critical patent/EP2146167A1/fr
Application granted granted Critical
Publication of EP2146167B1 publication Critical patent/EP2146167B1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
    • F26B3/06—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried
    • F26B3/08—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried so as to loosen them, e.g. to form a fluidised bed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/001—Handling, e.g. loading or unloading arrangements
    • F26B25/002—Handling, e.g. loading or unloading arrangements for bulk goods

Definitions

  • the present invention relates to a device for removing at least fluids from a mixture of particulate materials with a container comprising an annular process chamber with a cylindrical outer contour, with an introduction device for introducing a mixture of particulate materials into the process space, with an outlet device for discharging the at least at least partially freed of fluids particulate materials from the process space, with a supply means for supplying a fluidizing agent from below into the process space and at least one conditioning device for processing, in particular heating, the fluidizing agent in the flow direction in front of the feeder, wherein in the process space up to n walls as well as vertically extending n cells are provided, with n ⁇ a first cell is operatively connected to the insertion means, an nth cell is operatively connected to the discharge means, the n cells are open at their upper ends, the first (n-1) cells are from below through a bottom provided with first openings permeable by the fluidizing means, and the walls between the n cells, from the first to the n-th cell
  • FIG. 6 shows a drying device 1 with a container 2, which has a substantially cylindrical outer skin 3.
  • the container 2 is mounted on a frame 4, not only to make the container 1 from below a maintenance accessible, but also to facilitate removal of dried particulate materials in another processing plant. It is in FIG. 6 to recognize that the outer contour of the container 2 is substantially cylindrical. The geometric structure of the container 2 and the components arranged therein will be described below.
  • the set up on the frame 4 container 2 has at its lower, the frame 4 end facing a curved bottom 5, in which a not shown fan wheel is arranged, with a fluidizing agent, in particular superheated steam, is circulated in the container 2.
  • a substantially cylindrical superheater 6 is arranged, so that the fluidizing agent is introduced from below into a substantially annular process chamber 20 which is formed between the superheater 6 and the outer skin 3 and in the materials to be treated via a non-illustrated Entry device are registered.
  • the process space 20 is delimited at its lower end by a distributor base 7 held by means of a distributor plate holder, which allows the passage of the fluidizing means through a plurality of openings, not shown, from below, but does not allow a falling through of the materials to be treated.
  • inflow floor 7 vertically aligned walls 8 are arranged, which extend from the outer wall of the superheater 6 to the container wall, so the outer skin, and form n cells between them.
  • the walls 8 may extend down to the inflow floor 7 or form a clearance therebetween.
  • the cells formed by the walls 8 are open at the top so that the fluidizing agent flows through the cells from bottom to top and fluidizes and partially entrains the materials or particles to be treated, and possibly transports them to a downstream cell.
  • the n-th cell or discharge cell provided with a discharge device, not shown, is substantially not flowed through by the fluidizing agent, so that material entering the cell without distributor bottom from above or at the inflow base 7 reaches the bottom region and via the discharge device, for example a discharge tube Screw conveyor, can be removed from the discharge cell.
  • a discharge device for example a discharge tube Screw conveyor
  • swirl vanes 9 adjoin, which can also be arranged offset in the circumferential direction between the walls 8 and in their vertical extension approximately correspond to the vertical extent of the walls 8 or go beyond, that may be longer than the walls 8.
  • the swirl vanes 9 are aligned, in each case on their underside, which faces the walls 8, substantially parallel to the walls 8, so that the pressure side of the swirl blades 9 is oriented at an angle of 0 ° to the axial component of the flow velocity of the fluidizing agent.
  • the swirl vanes 9 are in the in FIG. 6 illustrated embodiment is curved and oriented so that the curvature of the entry device in operative connection with the entry cell to the discharge cell, ie in the flow direction of the particulate materials shows.
  • the curvature of the entry cell associated swirl blades 9 away from the discharge so that the particle and material flow over the entire circumference of the container 2 and thus the process space 20 transports must be to get to the discharge cell.
  • the swirl vanes 9 At its upper end, the swirl vanes 9 have a curvature of up to 35 ° to the axial component of the flow rate of the fluidizing means, to redirect the flow of the fluidizing means as well as that of the materials in the circumferential direction.
  • the swirl vanes 9 represent an extension of the walls 8, which extension may be formed with or without a gap between the swirl vanes 9 and the walls 8.
  • the swirl blades 9 may form a single or double curved surface, ie a curvature around both the axial component and a radial component, to redirect the flow of the fluidizing agent and the direction of movement of the material or solids according to requirements. Instead of a curvature, an inclination of otherwise straight-walled swirl vanes 9 can be provided for diverting the flow direction.
  • transition region 10 designed as a free space, which is provided without flow-influencing internals, so that the flow of the fluidizing agent as well as the transport thereof, together with the particles entrained in the fluidizing agent flow, can take place substantially unhindered.
  • This clearance 10, the so-called transition region is annular and allows a continuous, free, circular passage of both the material and the fluidizing agent in the horizontal plane.
  • swirl blades 9 and the transition region 10 additional swirl blades 11 are arranged, which also have a single or double curved surface, however, with an entrance angle of up to 15 ° relative to the axial flow velocity component on its pressure side.
  • the exit angle is in the same nomenclature up to 90 °, wherein the inner diameter of the blading corresponds to the outer diameter of the superheater 6.
  • the additional swirl blades 11 are part of a dust separator 12 whose outer diameter is smaller than the outer diameter of the process chamber 20 and thus smaller than the outer diameter of the container housing in the region of the walls 8 and the swirl blades 9.
  • the outer diameter of the additional twist blading corresponds to the outer diameter of the dust separator 12.
  • the swirl blading generates and promotes a pre-swirl or swirl flow over a fluidized bed present in the process space 20, thereby assisting the required and desired on-going transport from the feed cell to the discharge cell, not only for fine particles.
  • a centrifugal field is generated, in which the dust particles and entrained particulate materials are externally circulated and discharged through an opening.
  • the additional swirl blades 11 are arranged opposite to the twist direction oriented return vanes 13, which deflect the swirl of the fluidizing agent and convert it into a static pressure in order to supply the fluidizing agent to the superheater 6.
  • the return or return vanes 13 also have a single or double curved or inclined surface with an entrance angle of up to 90 ° with respect to the axial flow velocity component of the fluidizing means, the exit angle being up to 10 ° for the same nomenclature.
  • the inner diameter of the blading corresponds the outer diameter of an outlet pipe 14, while the outer diameter of the blading corresponds to the inner diameter of the superheater 6.
  • Upper opening 14a steam can escape from the container 2 and be used in another process, preferably energetically.
  • FIG. 7 represents a horizontal section along the line DD of FIG. 6
  • the entry cell 15 which is in operative connection with the entry device, not shown, for example, a screw conveyor shown, which is disposed immediately adjacent to the discharge cell 17, wherein the entry cell 15 and the discharge cell 17 are fluidly separated from each other so that an immediate transition of Material from the entry cell 15 in the discharge cell 17 is prevented.
  • Starting from the entry cell 15 is followed by a plurality of processing cells 16, which are separated by partitions 8 from each other.
  • the dividing walls 8 may be directly adjacent to the container wall or at a certain distance thereof within the annular process space 20, which is bounded on the bottom of the inflow base 7 and at the top of the underside of the swirl blades 9, suspended.
  • intermediate heating walls 18 may be arranged in order to provide additional heat energy for the drying process can.
  • the EP 0 955 511 B1 an alternative device for drying granules by means of superheated steam, wherein between all the processing cells, including entry cell and discharge cell, an arrangement for automatically regulating a particle flow from cell to cell, preferably each comprising a flap for opening a wall between two adjacent cells, provided is.
  • the use of such flaps involves the risk that there will be accumulation of granules in front of each closed flap, so that the respective flap is jammed and thus can no longer be selectively opened, whereby finally neither the degree of drying nor the output of dried granules are reproducibly adjustable.
  • the object of the present invention is therefore to develop the generic device such that it overcomes the disadvantages of the prior art.
  • This object is achieved according to the invention in that on the wall between the (n-1) -th cell and the n-th cell at least one boundary wall for delimiting a gap between the (n-1) -th cell and the n-th cell wherein the gap is arranged via the second opening in the wall between the (n-1) -th cell and the n-th cell, which is in particular in the form of a recess on the bottom-facing side of said wall; n-1) -th cell is connected, the intermediate space via at least a third opening, which is in particular in the form of a recess of the boundary wall on the bottom-facing side of the boundary wall, connectable to the n-th cell, the gap over the Boundary wall at its upper end opposite the bottom and laterally closed and from below through first openings in the bottom of the fluidizing agent can be flowed through, and the third opening by at least one Ve closing member of the discharge device at least temporarily at least partially closed or opened.
  • closure member is movable via a drive device of the discharge device, preferably regulated, in particular in dependence on output data of at least one sensor.
  • a fluidized bed of the particulate material can be generated by the fluidizing means, and the sensor measures at least one characteristic size of the fluidized bed, preferably none in the nth cell Fluidized bed is present.
  • a differential pressure of the fluidized bed can be detected via the sensor, preferably by means of a first sensor within the fluidized bed and a second sensor outside, in particular above, the fluidized bed, in particular in the (n-1) -th cell.
  • the drive device comprises at least one motor, such as a gear motor or stepper motor, preferably with a positioner for positioning the closure member, and / or the closure member is connected via a shaft to a motor of the drive device.
  • a motor such as a gear motor or stepper motor
  • the closure member has a coaxial to the shaft arranged circular segment cross-section.
  • Preferred embodiments of the invention are also characterized in that at least two closure members are provided, wherein preferably the closure members are evenly distributed on a concentric circle around the shaft around.
  • each closure member is movable from bottom to top along the third opening, preferably on a circular arc.
  • each closure member in the n-th cell and the associated drive means are arranged outside the container, so that the shaft between the drive means and the closure member passes through the outer contour of the container.
  • the boundary wall in particular a cover part thereof, extends at the upper end of the intermediate space from the third opening to the second opening in the wall between the (n-1) -th cell and the n-th cell, preferably after tilted and / or bent at the top.
  • the discharge device comprises a conveyor which extends at least partially in the n-th cell.
  • the discharge device comprises a frequency converter.
  • Embodiments of the invention may be further characterized in that in the wall between the (n-1) -th cell and the n-th cell at least a fourth opening is arranged above the second opening, so that above the gap of particulate materials of the (n-1) th cell can enter the nth cell.
  • the fourth opening is at least partially closed at least temporarily, preferably by a further closure member of the discharge.
  • Preferred embodiments are further characterized by a wall between the nth cell and the first cell, which wall has no opening.
  • n cells are arranged concentrically around the treatment device, preferably comprising a superheater.
  • the walls swirl vanes are arranged, which are inclined or curved in the flow direction of the particulate materials from the first cell to the n-th cell, wherein the outer diameter of the swirl vanes is not greater than the outer diameter of the walls and the swirl vanes of an outer shell are surrounded, which does not protrude radially beyond the outer shell, which surrounds the walls.
  • the invention also provides a method for removing at least fluids from a batch of particulate materials in a device according to the invention, characterized in that the residence time of the particulate material in the process space of the device is determined as a function of a fluidized bed differential pressure in the process space.
  • each of the third opening occlusive closure member is first rotated from its respective closed position into a third opening, preferably completely releasing opening position, preferably at the third opening from the bottom to the top, and then the closure member is held in the open position for a first predetermined period of time.
  • each closure member for discharging the at least partially freed from the at least fluid particulate materials from the process chamber each closure member is first brought to a stationary state for a second certain period of time in which the third opening is partially open, and at least during the second specific time period once for a third specific period of time, the third opening further open, in particular completely open, is, preferably for at least partially opening the third opening at least one closure member is moved from bottom to top at the third opening.
  • first at least one closure member closes the third opening either from top to bottom or from bottom to top.
  • the invention also proposes that the process space is filled with a mixture of particulate materials in such a way and a fluidizing agent is supplied to the process space such that at least in the (n-1) -th cell the fluidized bed builds up at least up to the fourth opening.
  • the invention is therefore based on the surprising finding that during operation of the drying apparatus with a continuous feed of particulate matter to be dried and a continuous discharge of dried materials, a fluidized differential pressure gradient is formed, which on the one hand is sufficient as a driving force for transport of the the fluidized bed to be dried particulate materials from processing cell to processing cell and on the other hand ensures a constant particle movement in front of a closure member which is necessary only between the last processing cell in which the fluidized bed propagates and the Austragszelle without fluidized bed, if the closure member not to Closing an opening of a wall between said last fluidized bed processing cell and the non-fluidized bed discharge cell is used, but for closing an opening of a gap between said the last processing cell and the discharge cell, so that there is no jamming of particles and / or an accumulation of heavy fluidizable product in front of the closure member.
  • the knowledge is used that, when the amount of supplied particulate materials of the fluidized bed is increased, the fluidized bed differential pressure increases, so that to ensure steady state process conditions in the fluidized bed with approximately constant filling and product residence time adjustment of the discharge the at least partially at least fluid-free particulate materials have to be made in dependence on said fluidized bed differential pressure.
  • This allows for a controlled amount of particulate materials in the fluidized bed, while optimizing the removal of the fluids from the particulate material. Further, even with momentary interruption or reduction of the supply of said mixture of particulate materials into the process space, it is ensured that the fluidized bed in the process space is not depleted of fluidized materials and thus maintained.
  • a drying device according to the invention represents a further development of with respect to FIGS. 6 and 7 described device 1, wherein like parts are identified by the same reference numerals and will not be described again in the connection. More specifically, the drying device 1 according to the invention differs, as in the FIGS. 1 to 3 is shown in different partial perspective sectional views of the known drying device 1 of FIGS. 6 and 7 essentially by a locking device 40, which is described in detail in FIG FIG. 4 is shown.
  • the locking device 40 comprises according to FIG. 4 a shaft 41 for connecting two shutter members 42a, 42b with a drive means 43.
  • the shutter members 42a, 42b are arranged in cross section on a circle concentric with the shaft 41, evenly distributed along the circle so as to face each other as it were lie.
  • the drive device 43 of the closure device 40 is arranged outside the outer skin 3 of the drying device 1, while the closure elements 42a, 42b are rotatably arranged in the discharge cell 17 via the shaft 41.
  • the dispensing cell 17, which has no distributor bottom, is not immediately adjacent to the one in the region of the closure members 42a, 42b FIG. 1 uniquely presented, so to speak last processing cell 16 with distributor plate (not shown) arranged, such as in FIG. 3 can be seen, with respect to the position of the inflow floor on the Figure 5a - 5c is referenced. Rather, it can be in the FIGS.
  • loosening space 19 is arranged between the processing cell 16 and the discharge cell 17 in a gap, which is called in the connection for reasons later explained in more detail loosening space 19, is arranged.
  • a boundary wall 19b is mounted on the wall 8a between said processing cell 16 and the discharge cell 17 in the region of the opening 8b, which is a recess of the wall 8a at the end facing the inflow bottom, so that the loosening space 19 via the opening 8b with said Processing cell 16 and via a further opening 19 a to the discharge cell 17 is connected.
  • the loosening space 19 is bounded above and laterally by the boundary wall 19b and down through the distributor plate, see in particular the FIGS. 5a to 5c ,
  • the opening 19a of the loosening space 19 is closable via one of the closure members 42a, 42b, as in the example of FIG FIG. 2 shown.
  • the closure members 42a, 42b are disposed in front of the opening 19a, such as in Figs FIGS. 1 or 3 shown, particulate materials from said processing cell 16 can pass through the loosening space 19 in the discharge cell 17, from which they are then brought out via a conveyor 30, namely in the region of an opening 17 a, the best in FIG. 1 is shown.
  • This fluidized bed differential pressure is proportional to the amount of particulate materials in the fluidized bed.
  • the driving force for the transport of material from the entry cell 15 to the discharge cell 17 consists in a permanent fluidized bed differential pressure difference, which adjusts in a continuous operation of the drying device 1 from the entry to the discharge out.
  • the transport of material in this case runs from the entry cell 15 via the processing cells 16 in the discharge cell 17, through openings in the partitions 8, such as the opening 8b in the partition wall 8a between the last processing cell 16 with distributor plate 7 and the discharge cell 17 without distributor plate 7th
  • materials must be able to flow out of the fluidized bed in accordance with the inflow of the materials, that is, they can leave the drying apparatus 1 through the opening 17a. This can be done in different ways.
  • the closure member 42a is made of the in FIG. 5a shown closing position in the in FIG. 5b rotated opening position, in a clockwise direction. This direction of rotation is important because it ensures that the closure member 42a sweeps past the opening 19a from bottom to top, so that coarser parts do not lead to jamming between the closure member 42a on the one hand and the wall 8a and / or the outlet bottom 7 on the other hand.
  • the closure member 42b is then returned to its closed position and remains there for a fixed period of time.
  • the speed of the rotary movement must be so great that the fluidized bed in front of the discharge cell 17 is not depleted of solid by a too long opening time of the loosening space 19. A speed of 10 to 20 revolutions per minute is desirable.
  • a plurality of closure members may be appropriate to influence the opening times.
  • one of the closure members 42a, 42b may also be rotated to an only partially open position, see for example FIG. 5c , and stay in this position.
  • the duration of the closed as well as the open state of the loosening space 19 is to be regulated as a function of a fluidized bed differential pressure. This is measured via two pressure sensors 44a, 44b, wherein the one pressure sensor 44a above the fluidized bed and the other pressure sensor 44b, as already Figures 1-3 removable, within the fluidized bed in the immediate vicinity of the Ausströmboden 7 of the processing cell 16 is arranged.
  • the individual positions of the closure members 42a and 42b are targeted by the drive means 43, which may comprise a geared motor with positioner.
  • the conveyor 30 may be used.
  • the closure member 42a may, as in FIG. 5c shown in a partially open position, in which the lower edge of the closure member 42 a is above the lower edge of the opening 19 a of the loosening space 19. Due to the opening of the loosening space 19 thus given, particulate materials can pass from the processing cell 16 into the discharge cell 17 after passing through the loosening space 19, the quantity of which can be regulated as a function of a detected fluidized bed differential pressure by changing the position of the closure member 42a.
  • the closure member 42a can fully release the opening 19a for a short period of time, as in FIG. 5b shown, namely to allow the discharge of any existing coarse particles.
  • the required rotational movement of the closure members 42a, 42b also depends on the number of closure members.
  • the opening 8c acts as a stationary weir, which allows particulate materials to enter the discharge cell 17 from the processing cell 16.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Drying Of Solid Materials (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Claims (22)

  1. Appareil (1) pour retirer au moins des fluides à partir d'une quantité de matériaux particulaires, avec un récipient (2), qui comprend un espace de traitement (20) annulaire possédant un contour extérieur cylindrique (3), avec un dispositif de chargement pour le chargement d'une quantité de matériaux particulaires dans l'espace de traitement (20), avec un dispositif de déchargement (30, 40) pour décharger hors de l'espace de traitement (20) les matériaux particulaires au moins partiellement libérés d'au moins des fluides, avec un dispositif d'amenée (5) pour amener un agent de fluidisation depuis le bas dans l'espace de traitement (20) ainsi qu'avec au moins un dispositif de préparation (6) pour préparer, en particulier chauffer, l'agent de fluidisation dans le sens de l'écoulement avant le dispositif d'amenée (5), n cellules (15, 16, 17) s'étendant en direction verticale étant disposées dans l'espace de traitement (20) jusqu'aux n parois (8, 8a), avec n ∈ N, une première cellule (15) étant en liaison fonctionnelle avec le dispositif de chargement, une n-ième cellule (17) étant en liaison fonctionnelle avec le dispositif de chargement (30, 40), les n cellules (15, 16, 17) sont ouvertes au niveau de leurs extrémités supérieures, les (n-1) premières cellules (15, 16) pouvant être parcourues par l'agent de fluidisation depuis le bas à travers un fond (7) muni de premières ouvertures, et les parois (8, 8a) entre les n cellules (15, 16, 17), de la première à la n-ième cellule (15, 16, 17), présentant respectivement au moins une deuxième ouverture (8b) pour un passage de matériaux particulaires, caractérisé en ce que
    au moins une paroi de délimitation (19b) pour la délimitation d'un espace intermédiaire (19) entre la (n-1)-ième cellule (16) et la n-ième cellule (17) est installée au niveau de la paroi (8a) entre la (n-1)-ième cellule (16) et la n-ième cellule (17), l'espace intermédiaire (19) étant relié à la (n-1)-ième cellule (16) par l'intermédiaire de la deuxième ouverture (8) dans la paroi (8a) entre la (n-1)-ième cellule (16) et la n-ième cellule (17), qui est réalisée en particulier sous la forme d'un évidement au niveau de la face, tournée vers le fond (7), de ladite paroi (8a), l'espace intermédiaire (19) pouvant être relié à la n-ième cellule (17) par l'intermédiaire d'au moins une troisième ouverture (19a), qui est réalisée en particulier sous la forme d'un évidement de la paroi de délimitation (19b) au niveau de la face, tournée vers le fond (7), de la paroi de délimitation (19), l'espace intermédiaire (19) étant fermé latéralement et au niveau de son extrémité supérieure, faisant face au fond (7), par l'intermédiaire de la paroi de délimitation (19b) et pouvant être parcouru par l'agent de fluidisation depuis le bas à travers des premières ouvertures situées dans le fond (7), et la troisième ouverture (19a) pouvant être fermée ou ouverte au moins partiellement et au moins temporairement grâce à au moins un organe de fermeture (42a, 42b) du dispositif de déchargement (30, 40).
  2. Appareil selon la revendication 1, caractérisé en ce que
    l'organe de fermeture (42a, 42b) peut être déplacé par l'intermédiaire d'un dispositif d'entraînement (43) du dispositif de déchargement (30, 40), de préférence de manière régulée, en particulier en fonction de données de sortie d'au moins un capteur (44a, 44b).
  3. Appareil selon la revendication 2, caractérisé en ce que
    une couche fluidisée constituée du matériau particulaire peut être produite dans les (n-1) premières cellules (15, 16) et dans l'espace intermédiaire (19) grâce à l'agent de fluidisation, et le capteur (44a, 44b) mesure au moins une grandeur caractéristique de la couche fluidisée, aucune couche fluidisée n'étant présente de préférence dans la n-ième cellule (17).
  4. Appareil selon la revendication 3, caractérisé en ce que
    une pression différentielle de la couche fluidisée peut être enregistrée par le capteur (44a, 44b), de préférence au moyen d'un premier détecteur (44b) à l'intérieur de la couche fluidisée et d'un deuxième détecteur (44a) à l'extérieur, en particulier au-dessus, de la couche fluidisée, en particulier dans la (n-1)-ième cellule (16).
  5. Appareil selon l'une quelconque des revendications 2 à 4, caractérisé en ce que
    le dispositif d'entraînement (43) comprend au moins un moteur, comme un moteur-réducteur ou un moteur pas à pas, de préférence avec un positionneur pour le positionnement de l'organe de fermeture, et/ou
    l'organe de fermeture (42a, 42b) est relié par l'intermédiaire d'un arbre (41) à un moteur du dispositif d'entraînement (43).
  6. Appareil selon la revendication 5, caractérisé en ce que
    l'organe de fermeture (42a, 42b) présente une section en segment de cercle agencée de manière coaxiale par rapport à l'arbre (41).
  7. Appareil selon l'une quelconque des revendications précédentes, caractérisé en ce que
    au moins deux organes de fermeture (42a, 42b) sont prévus, les organes de fermeture (42a, 42b) étant agencés de manière régulièrement répartie sur un cercle concentrique autour de l'arbre (41).
  8. Appareil selon l'une quelconque des revendications précédentes, caractérisé en ce que
    chaque organe de fermeture (42a, 42b) peut être déplacé de bas en haut le long de la troisième ouverture (19), de préférence sur un arc de cercle.
  9. Appareil selon l'une quelconque des revendications 2 à 8, caractérisé en ce que
    chaque organe de fermeture (42a, 42b) est agencé dans la n-ième cellule (17) et le dispositif d'entraînement (43) correspondant est agencé à l'extérieur du récipient (2), de sorte que l'arbre (41) pénètre entre le dispositif d'entraînement (43) et l'organe de fermeture (42a, 42b) à travers le contour extérieur (3) du récipient (2).
  10. Appareil selon l'une quelconque des revendications précédentes, caractérisé en ce que
    la paroi de délimitation (19b), en particulier une partie formant plafond de celle-ci, s'étend au niveau de l'extrémité supérieure de l'espace intermédiaire (19) depuis la troisième ouverture (19a) jusqu'à la deuxième ouverture (8b) dans la paroi (8a) entre la (n-1)-ième cellule (16) et la n-ième cellule (17), de préférence en étant inclinée et/ou courbée vers le haut.
  11. Appareil selon l'une quelconque des revendications précédentes, caractérisé en ce que
    le dispositif de déchargement (30, 40) comprend un dispositif de transport (30), qui passe au moins partiellement dans la n-ième cellule (17).
  12. Appareil selon l'une quelconque des revendications précédentes, caractérisé en ce que
    le dispositif de déchargement (30, 40) comprend un convertisseur de fréquence.
  13. Appareil selon l'une quelconque des revendications précédentes, caractérisé en ce que
    au moins une quatrième ouverture (8c) est agencée au-dessus de la deuxième ouverture (8b) dans la paroi (8a) entre la (n-1)-ième cellule (16) et la n-ième cellule (17), de sorte que du matériau particulaire peut entrer au-dessus de l'espace intermédiaire (19) de la (n-1)-ième cellule (16) jusque dans la n-ième cellule (17).
  14. Appareil selon la revendication 13, caractérisé en ce que
    la quatrième ouverture (8c) peut être fermée au moins partiellement et au moins temporairement, de préférence grâce à un autre organe de fermeture du dispositif de déchargement (30, 40).
  15. Appareil selon l'une quelconque des revendications précédentes, caractérisé par
    une paroi (18) entre la n-ième cellule (17) et la première cellule (15), cette paroi ne présentant aucune ouverture.
  16. Appareil selon l'une quelconque des revendications précédentes, caractérisé en ce que
    les n cellules (15, 16, 17) sont agencées de manière concentrique autour du dispositif de préparation, comprenant de préférence un surchauffeur (6).
  17. Appareil selon l'une quelconque des revendications précédentes, caractérisé en ce que
    des pales d'hélice (9) sont agencées au-dessus des parois (8, 8a), qui sont inclinées ou coudées dans la direction d'écoulement des matériaux particulaires de la première cellule (15) jusqu'à la n-ième cellule (17), le diamètre extérieur des pales d'hélice (9) n'étant pas supérieur au diamètre extérieur des parois (8, 8a) et les pales d'hélice (9) étant entourées par une enveloppe extérieure (3), qui ne fait pas saillie radialement par-dessus l'enveloppe extérieure (3) qui entoure les parois (8, 8a).
  18. Procédé pour retirer au moins des fluides à partir d'une quantité de matériaux particulaires dans un appareil selon l'une quelconque des revendications précédentes, caractérisé en ce que
    le temps de séjour des matériaux particulaires dans l'espace de traitement de l'appareil est déterminé en fonction d'une pression différentielle de couche fluidisée dans l'espace de traitement.
  19. Procédé selon la revendication 18, caractérisé en ce que
    pour le déchargement hors de l'espace de traitement des matériaux particulaires au moins partiellement libérés d'au moins des fluides, chaque organe de fermeture fermant la troisième ouverture est d'abord tourné à partir de sa position de fermeture respective dans une position d'ouverture libérant, de préférence complètement, la troisième ouverture, de préférence en passant du bas vers le haut devant la troisième ouverture, et l'organe de fermeture est par la suite maintenu dans la position d'ouverture pour une première durée déterminée.
  20. Procédé selon la revendication 18 ou 19, caractérisé en ce que
    pour le déchargement hors de l'espace de traitement des matériaux particulaires au moins partiellement libérés d'au moins des fluides, chaque organe de fermeture est d'abord placé pour une deuxième durée déterminée dans un état stationnaire, dans lequel la troisième ouverture est partiellement ouverte, et la troisième ouverture est à nouveau ouverte, en particulier complètement ouverte, au moins une fois pour une troisième durée déterminée pendant la deuxième durée déterminée, au moins un organe de fermeture étant déplacé du bas vers le haut en passant devant la troisième ouverture, de préférence en vue d'une ouverture au moins par endroit de la troisième ouverture.
  21. Procédé selon la revendication 19 ou 20, caractérisé en ce que
    pour une fermeture au moins partielle de la troisième ouverture, de préférence en fonction des première, deuxième et/ou troisième durées, au moins un organe de fermeture ferme d'abord la troisième ouverture du haut vers le bas ou du bas vers le haut.
  22. Procédé selon la revendication 18 ou 21, caractérisé en ce que l'espace de traitement est rempli avec une quantité de matériaux particulaires et un agent de fluidisation est amené vers l'espace de traitement de sorte que la couche fluidisée se constitue au moins dans la (n-1)-ième cellule au moins jusqu'à la quatrième ouverture.
EP08012666A 2008-07-14 2008-07-14 Dispositif et procédé destinés à enlever des fluides Active EP2146167B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DK08012666.7T DK2146167T3 (da) 2008-07-14 2008-07-14 Indretning og fremgangsmåde til fjernelse af fluider
EP08012666A EP2146167B1 (fr) 2008-07-14 2008-07-14 Dispositif et procédé destinés à enlever des fluides
AT08012666T ATE471493T1 (de) 2008-07-14 2008-07-14 Vorrichtung und verfahren zum entfernen von fluiden
DE502008000807T DE502008000807D1 (de) 2008-07-14 2008-07-14 Vorrichtung und Verfahren zum Entfernen von Fluiden
CN200980127379.XA CN102099649B (zh) 2008-07-14 2009-07-14 用于排除流体和/或固体的设备和方法
PCT/EP2009/058977 WO2010007057A1 (fr) 2008-07-14 2009-07-14 Dispositif et procédé destinés à retirer des fluides et/ou des solides
US13/003,976 US8844162B2 (en) 2008-07-14 2009-07-14 Device and method for removing fluids and/or solids

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08012666A EP2146167B1 (fr) 2008-07-14 2008-07-14 Dispositif et procédé destinés à enlever des fluides

Publications (2)

Publication Number Publication Date
EP2146167A1 EP2146167A1 (fr) 2010-01-20
EP2146167B1 true EP2146167B1 (fr) 2010-06-16

Family

ID=40029246

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08012666A Active EP2146167B1 (fr) 2008-07-14 2008-07-14 Dispositif et procédé destinés à enlever des fluides

Country Status (7)

Country Link
US (1) US8844162B2 (fr)
EP (1) EP2146167B1 (fr)
CN (1) CN102099649B (fr)
AT (1) ATE471493T1 (fr)
DE (1) DE502008000807D1 (fr)
DK (1) DK2146167T3 (fr)
WO (1) WO2010007057A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014106122A1 (de) 2014-04-30 2015-11-05 Bma Braunschweigische Maschinenbauanstalt Ag Wirbelschichtverdampfungstrockner

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GB833232A (en) * 1955-06-06 1960-04-21 Peters Ag Claudius Improvements connected with delivery valves for silos
FR1260884A (fr) * 1960-06-02 1961-05-12 English Clays Lovering Pochin Procédé de séchage d'une matière insoluble à l'état de particules, s'appliquant en particulier au séchage du kaolin
US3360867A (en) * 1965-11-18 1968-01-02 Komline Sanderson Eng Corp Batch-type fluidizing apparatus and process
NL6909630A (fr) * 1968-07-01 1970-01-05
DE2421278A1 (de) * 1973-05-10 1974-11-28 Anhydro As Apparat zur behandlung fluidisierter materialien
CH652940A5 (de) * 1982-01-09 1985-12-13 Sandoz Ag Verfahren zur herstellung nicht staubender granulate und vorrichtung hierfuer.
US4593477A (en) * 1982-12-16 1986-06-10 The Babcock & Wilcox Company Control system for a fluidized bed
DE3442659A1 (de) * 1984-11-23 1986-05-28 Basf Ag, 6700 Ludwigshafen Verfahren zur kontinuierlichen messung des fuellungsgrades von wirbelschichtapparaten
JPS61152411A (ja) * 1984-12-26 1986-07-11 Mitsubishi Gas Chem Co Inc 多層パリソン及びその製造方法
DK165290A (da) * 1990-07-09 1992-01-10 Dds Eng As Apparat til toerring af et vaeskeholdigt partikelformet materiale med overhedet damp
CN2258975Y (zh) * 1995-06-14 1997-08-06 蒋大洲 一种流化床造粒干燥装置
JPH11142056A (ja) * 1997-11-10 1999-05-28 Nara Kikai Seisakusho:Kk 流動層乾燥装置の粉体排出構造
US6122841A (en) * 1998-05-07 2000-09-26 Asj Holding Aps Apparatus for the drying of moist particulate material in superheated steam
CN1153633C (zh) * 1998-11-02 2004-06-16 川崎重工业株式会社 多室型流化床分级装置
ATE464522T1 (de) 2007-02-09 2010-04-15 Braunschweigische Maschb Ansta Vorrichtung zum entfernen von fluiden und/oder feststoffen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014106122A1 (de) 2014-04-30 2015-11-05 Bma Braunschweigische Maschinenbauanstalt Ag Wirbelschichtverdampfungstrockner
WO2015166358A1 (fr) 2014-04-30 2015-11-05 Bma Braunschweigische Maschinenbauanstalt Ag Sécheuse à vapeur à lit fluidisé

Also Published As

Publication number Publication date
US8844162B2 (en) 2014-09-30
ATE471493T1 (de) 2010-07-15
DE502008000807D1 (de) 2010-07-29
CN102099649A (zh) 2011-06-15
CN102099649B (zh) 2012-08-01
WO2010007057A1 (fr) 2010-01-21
EP2146167A1 (fr) 2010-01-20
DK2146167T3 (da) 2010-09-27
US20110162229A1 (en) 2011-07-07

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