EP2981351A1 - Appareil de fluidisation - Google Patents

Appareil de fluidisation

Info

Publication number
EP2981351A1
EP2981351A1 EP14728815.3A EP14728815A EP2981351A1 EP 2981351 A1 EP2981351 A1 EP 2981351A1 EP 14728815 A EP14728815 A EP 14728815A EP 2981351 A1 EP2981351 A1 EP 2981351A1
Authority
EP
European Patent Office
Prior art keywords
fluidizing apparatus
solid particles
chamber
distributor plate
rotary dryer
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.)
Pending
Application number
EP14728815.3A
Other languages
German (de)
English (en)
Inventor
Michael Jacob
Reinhard Böber
Raoul Pila
Heinz Pritzke
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.)
Glatt Ingenieurtechnik GmbH
Original Assignee
Glatt Ingenieurtechnik GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Glatt Ingenieurtechnik GmbH filed Critical Glatt Ingenieurtechnik GmbH
Publication of EP2981351A1 publication Critical patent/EP2981351A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
    • B01J8/24—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique
    • B01J8/44—Fluidisation grids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/30—Mixing gases with solids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • B01J2/16—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by suspending the powder material in a gas, e.g. in fluidised beds or as a falling curtain
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
    • B01J8/24—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique
    • B01J8/36—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with fluidised bed through which there is an essentially horizontal flow of particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
    • B01J8/24—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique
    • B01J8/38—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with fluidised bed containing a rotatable device or being subject to rotation or to a circulatory movement, i.e. leaving a vessel and subsequently re-entering it
    • B01J8/382—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with fluidised bed containing a rotatable device or being subject to rotation or to a circulatory movement, i.e. leaving a vessel and subsequently re-entering it with a rotatable device only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B5/00—Drying solid materials or objects by processes not involving the application of heat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
    • B01J2208/00796—Details of the reactor or of the particulate material
    • B01J2208/00884—Means for supporting the bed of particles, e.g. grids, bars, perforated plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
    • B01J2208/00796—Details of the reactor or of the particulate material
    • B01J2208/00893—Feeding means for the reactants
    • B01J2208/0092—Perforated plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
    • B01J2208/00796—Details of the reactor or of the particulate material
    • B01J2208/00938—Flow distribution elements

Definitions

  • the invention is based on a fluidizing apparatus for the continuous conditioning of solid particles, according to the preamble of claim 1.
  • the patent specification DE-PS 1 227 840 B introduces a continuous fluidized bed dryer for flowable goods.
  • This fluidized-bed dryer consists of a shaft-like drying chamber, a perforated bottom through which gaseous desiccant flows and in the drying chamber above the sieve plate around the shaft axis, with radial walls extending up to the shaft casing above its height.
  • the upwardly widening shaft shell engages sealingly above a fixed, connected to the shaft filter and charging chamber and below the sieve bottom an air chamber.
  • the radial walls are firmly connected to the shaft shell.
  • a disadvantage of this disclosed in the patent technical solution is, firstly, that the flow velocity of the gas over the entire sieve bottom is the same size, on the other hand, that the outlet unit reduces existing for conditioning of the solid particles drying space within the vortex chamber.
  • each individual section of the fluidized bed space or the reaction chamber contains a horizontal, provided with arms and openings hollow shaft, below the reaction or fluidized bed space, a chamber for the distribution of the incoming medium is arranged, which consists of several departments or segments, of which each individual department or each individual segment is provided with a gas supply line, in which a device is provided for regulating and / or interrupting the supply of the reaction medium, possibly of the fluidized medium.
  • a chamber for the distribution of the incoming medium is arranged, which consists of several departments or segments, of which each individual department or each individual segment is provided with a gas supply line, in which a device is provided for regulating and / or interrupting the supply of the reaction medium, possibly of the fluidized medium.
  • the fluidizing apparatus for the conditioning of solid particles with the characterizing features of claim 1, has the advantage that an air distribution plate is disposed below the inflow, wherein opening ratios, which result from openings in the air distribution plate, vary.
  • the fluidizing apparatus consists of a distributor chamber, a swirling chamber, wherein the swirl chamber has partition walls or the like for conveying solid particles along a conveyor line, a solid particle inlet unit and a solid particle outlet unit and a distributor plate.
  • the opening ratios of the air distribution plate change with increasing conveying distance of the solid particles to be conditioned in the vortex chamber.
  • a Segmentation of the distribution chamber is eliminated by the change in the opening ratios on the air distribution plate, as can be adjusted by the back pressure generated by the air distribution plate most different conditioning conditions in the vortex chamber. Nevertheless, segmentation of the air distribution chamber may be optional.
  • a variation of the opening ratios on the air distribution plate in dependence of the cross section of the openings takes place.
  • Fluidi- s mecanicsapparates is located between the solid particle inlet unit and the solid particle outlet unit of Fluidmaschinesapparates at least one process space, so that takes place during the task of the solid particles no back mixing with the already conditioned solid particles. Due to the non-occurring backmixing with the already conditioned solid particles, the product quality of the solid particles to be produced is increased.
  • At least one non-perforated sector is arranged on the air distribution plate. This prevents the treatment gases from flowing upwards without utilization in the part of the rotating rotary dryer star which is not charged with material.
  • the non-perforated sector has an opening angle.
  • the opening angle of the non-perforated sector ideally corresponds to the opening angle of the process spaces, whereby backmixing of the solid particles to be treated is prevented.
  • Fluidi- s istsapparates a rotary dryer star is rotatably arranged in the swirl chamber. The rotation of the rotary dryer star sets a precisely defined residence time of the solid particles in the swirl chamber.
  • the process spaces are mounted on the rotary dryer star through the partitions.
  • the division of the rotary dryer star into process rooms has the advantage that the individual batches of the solid particles are strictly separated from each other and thus can be optimally conditioned, matched to the respective conditioning state.
  • the process space spanned on the rotary dryer star specifies the dimensions of the other process spaces. Due to the uniform subdivision of the vortex chamber in the process chambers spanned on the rotary dryer star, a continuous operation of the fluidization apparatus according to the invention is made possible. In addition, the process spaces of the same size ensure that no backmixing takes place when the particles of solids are still to be conditioned and conditioned and thus the product quality is increased.
  • the openings of the air distribution plate in the region of the solid particle outlet unit assume the function of a blowing device for discharging the solid particles.
  • a blowing device for discharging the solid particles.
  • Fluidi- s istsapparates the air distribution plate is replaceable.
  • the interchangeability of the air distribution plate ensures a high degree of flexibility, for example, to use a modular fluidizing apparatus for other processes too and be able to set the ideal process conditions for the solid particles then fed.
  • Fluidi- s istsapparates the distribution chamber is designed segmented.
  • the flexibility of the fluidization apparatus according to the invention is further increased, since the fluidization apparatus, z.
  • different temperatures can be made possible thereby, which allow the formation of a temperature profile in continuous driving.
  • the dividing walls arranged on the rotary dryer star extend over the entire height of the vortex chamber. This prevents overflow of the solid particles into other process spaces, which also does not lead to backmixing of the solid particles and the product quality is consistently high.
  • FIG. 1 is a perspective view of a fluidizing apparatus according to the invention
  • FIG. 2 is a perspective view of a fluidizing apparatus according to the invention
  • 3 is a cutaway, perspective view of a fluidizing apparatus according to the invention
  • 4 is a perspective view of a built-in part of the distribution chamber
  • Fig. 5 is a perspective view of a rotary dryer star
  • Fig. 6 is a plan view of a rotary dryer star
  • FIG. 7 is a perspective view of an assembly of the rotary dryer star and the installation part of the distribution chamber
  • Fig. 8 is a plan view of the assembly shown in Fig. 7 and
  • FIG 9 shows a section through a continuously operated axial fluidized bed dryer.
  • FIG. 1 an embodiment of the invention Fluidleitersappara- 1 is shown in a perspective view.
  • the illustrated fluidization apparatus 1 consists of two modular functional units, a distribution chamber 2 and a vortex chamber 3 arranged above the distribution chamber 2.
  • a pipe socket or the like. which is arranged in a functional manner to the distribution chamber 2, ensured.
  • the vortex chamber 3 arranged above the distributor chamber 2 consists of an outer jacket 5, which has a solid particle inlet unit 6 and a solid particle outlet unit 7, and a rotary dryer star 8 which rotates in the vortex chamber 3, a cone 9 and partitions 10 arranged thereon
  • a solid particle inlet unit 6 and a solid particle outlet unit 7 which rotates in the vortex chamber 3
  • a rotary dryer star 8 which rotates in the vortex chamber 3
  • a cone 9 and partitions 10 arranged thereon
  • For example, from sheet metal, aluminum or the like. Are made and subdivide the vortex chamber 3 into segments, and having a not visible in the drawing distributor plate 1 1.
  • FIG. 2 A perspective view of the fluidizing apparatus 1 according to the invention is shown in FIG. 2.
  • the plan view shows the already mentioned in Fig. 1 technical features of the fluidization apparatus 1, and not shown in Fig. 1 distributor plate 1 1.
  • an opening angle 14 of the process spaces 12 is shown, which significantly by the positions of the solid particle inlet unit 6 and the solid particle discharge unit 7 is determined to each other.
  • the process spaces 12 are formed by the arranged on the cone 9 of the rotary dryer star 8 dividing walls 10, the distributor plate 1 1, the outer jacket 5 and the cover, not shown.
  • the distributor plate 1 1 can be made for example as a grid, as perforated or perforated plate.
  • the ideal opening angle of the process chambers 12 results from the forming arc from the end of the solid particle outlet unit 7 to the start of the solid particle inlet unit 6.
  • the partition walls 10 arranged on the rotary dryer star 8 extend over the entire height of the swirl chamber 3 and are so high that an overflow of the fluidized solid particles during operation of the fluidizing apparatus 1 is not possible. This property of the partitions 10 increases the product quality, since thus backmixing of differently conditioned solid particles between the individual process spaces 12 is prevented. Furthermore, the partitions 10 in the exemplary embodiment at the outer End on a bent in the direction of rotation 15 or angled partition wall 16, whereby on the one hand an additional mechanical stability of the partitions 10 of the rotary dryer star 8 is achieved and on the other a sealing of the process spaces 12 takes place against the outer shell 5.
  • the partition wall 16 between the partition 10 and outer shell 5 of the vortex chamber 3 can also be produced by a differently suitable seal.
  • the opening ratio of the inflow base 1 1 is adaptable to the solid particles to be conditioned and in the case of a rotating inflow floor 1 1, for example a grate or the like., From the smallest occurring size of the solid particles to be conditioned dependent.
  • FIG. 4 shows a perspective view of a built-in part 17, which is integrated into the distribution chamber 2 of the fluidizing apparatus 1.
  • the built-in 17 consists of an air distribution plate 18, which is arranged interchangeably on a frame 19 in a possible embodiment.
  • the air distribution plate 18 may be made in one piece or in several parts.
  • the air distributor plate 18 consists of a frame part 20 and a perforated insert 21.
  • the perforation of the insert 21 can be carried out in any desired configuration, for example through openings 22 or the like.
  • the openings 22 are designed as opening bores and have different diameters, which are smaller from a non-perforated sector 23 in a clockwise direction in three stages or segments.
  • the opening ratio of the air distribution plate 18 changes as the conveying distance of the solid particles to be conditioned in the swirl chamber 3 increases.
  • the openings 22 in the area of the solid particle outlet unit 7 can additionally be designed, for example, to serve as the active blow-off device of the conditioned solid particles, ie Blower for discharging the solid particles can be used.
  • the frame part 20 of the air distribution plate 18 has in the embodiment, as mentioned above in the description, a non-perforated sector 23 which has an opening angle 24.
  • the opening angle 24 of the sector 23 as well as the opening angle 14 of the process spaces 12 depending on the positions of the solid particle inlet unit 6 and the solid particle outlet unit 7.
  • an opening 25 is provided, via which the connection to the drive unit 13 of the Rotation dryer star 8 is produced.
  • the drive unit 13 can also be connected differently with the rotary dryer star 8 in order to drive it.
  • Fig. 5 shows a perspective view of the rotary dryer star 8. This consists of the cone 9, the partitions 10 with bent in the direction of rotation 15 Trennwandab remplin 16 and the detachably or fixedly arranged distributor plate 1 1. In this way the process spaces 12 are created, in which the solid particles are transported through the vortex chamber 3 with a precisely defined residence time.
  • FIG. 6 shows a plan view of the fluidizing apparatus 1 according to the invention.
  • the illustrated rotary dryer star 8 has the technical features described in FIG. 5 and moreover shows the opening angle 14 spanning the process spaces 12.
  • the process spaces 12 in the exemplary embodiment all have the same opening angle 14, whereby the process spaces 12 are all the same size. However, the process spaces 12 may also have a different opening angle 14 and are therefore no longer identical in size.
  • FIG. 7 A perspective view of the assembly of the rotary dryer star 8, with cones 9 and partitions 10, as well as the built-in part 17 of the distribution chamber 2, consisting of frame 19 and air distribution plate 18, is described in Fig. 7.
  • the built-in part 17 is arranged in the distribution chamber 2 below the rotary dryer star 8, which is placed in the swirl chamber 3.
  • the uniform opening conditions of the inflow base 11, for example a grate, a perforated plate or the like, and the different opening ratios of the air distribution plate 18 are clearly visible in FIG. 7.
  • the uniform opening ratios are designed for the smallest expansion of the solid particles in the conditioning process to be carried out and thus prevent a product loss.
  • the different opening conditions of the air distribution plate 18 always ensure optimal flow conditions of the solid particles to be conditioned during the residence time in the process chambers 12 of the vortex chamber 3 safely without a complex and costly segmentation of the distribution chamber. 2
  • Fig. 8 shows a plan view of the assembly shown in Fig. 7 of the rotary dryer star 8 and the mounting part 17.
  • a further fluidizing apparatus 1 which, however, in contrast to the first embodiment, is not circular but has an axial conveying path and is shown schematically in Fig. 9.
  • the fluidizing apparatus 1 is charged with solid particles by means of a solid particle inlet unit 26.
  • the solid particles are transported in individual process spaces 27, which are formed by partitions 28, an outer shell 29 and a distributor plate 30 in the swirl chamber 31, to the solid particle discharge unit 32. This ensures that all solid particles have the same residence time in the fluidization apparatus 1.
  • the air distribution plate 33 which may have the same characteristics as described above, is disposed at least partially below the propulsion base driven by the drive unit 30.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Molecular Biology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)

Abstract

L'invention concerne un appareil de fluidisation (1) destiné au conditionnement de particules solides et comprenant une chambre de distribution (2), une chambre de turbulence (3), la chambre de turbulence (3) présentant des parois de séparation (10) ou analogues pour le transport des particules solides le long d'une voie de transport, une unité d'entrée (6) de particules solides et une unité de sortie (7) de particules solides, et une grille de fluidisation (11). Selon l'invention, une plaque de répartition d'air (18) est disposée sous la grille de fluidisation (11) et des rapports d'ouverture varient, ces rapports résultant d'ouvertures (22) ménagées dans la plaque de répartition d'air (18).
EP14728815.3A 2013-04-03 2014-04-03 Appareil de fluidisation Pending EP2981351A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013005921.6A DE102013005921A1 (de) 2013-04-03 2013-04-03 Fluidisierungsapparat
PCT/DE2014/000163 WO2015117577A1 (fr) 2013-04-03 2014-04-03 Appareil de fluidisation

Publications (1)

Publication Number Publication Date
EP2981351A1 true EP2981351A1 (fr) 2016-02-10

Family

ID=50897314

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14728815.3A Pending EP2981351A1 (fr) 2013-04-03 2014-04-03 Appareil de fluidisation

Country Status (6)

Country Link
US (1) US10076738B2 (fr)
EP (1) EP2981351A1 (fr)
JP (1) JP2016519749A (fr)
CN (1) CN105142770B (fr)
DE (1) DE102013005921A1 (fr)
WO (1) WO2015117577A1 (fr)

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DE102018208932A1 (de) * 2018-06-06 2019-12-12 Glatt Gesellschaft Mit Beschränkter Haftung Anströmboden für einen Fluidisierungsapparat
DE102018208930A1 (de) * 2018-06-06 2019-12-12 Glatt Gesellschaft Mit Beschränkter Haftung Vorrichtung und Verfahren zur Herstellung und Behandlung von Granulat sowie Adapterstutzen zur Verbindung eines ein Granulat erzeugenden Granulators und eines Fluidisierungsapparates
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WO2015117577A1 (fr) 2015-08-13
CN105142770B (zh) 2018-02-02
CN105142770A (zh) 2015-12-09
DE102013005921A1 (de) 2014-10-09
US10076738B2 (en) 2018-09-18
US20160074827A1 (en) 2016-03-17
JP2016519749A (ja) 2016-07-07

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