WO2022223169A1 - Appareil et procédé de traitement d'un matériau grumeleux - Google Patents

Appareil et procédé de traitement d'un matériau grumeleux Download PDF

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Publication number
WO2022223169A1
WO2022223169A1 PCT/EP2022/053780 EP2022053780W WO2022223169A1 WO 2022223169 A1 WO2022223169 A1 WO 2022223169A1 EP 2022053780 W EP2022053780 W EP 2022053780W WO 2022223169 A1 WO2022223169 A1 WO 2022223169A1
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WO
WIPO (PCT)
Prior art keywords
area
gas
floor
product
conveying direction
Prior art date
Application number
PCT/EP2022/053780
Other languages
German (de)
English (en)
Inventor
Amadeo RABENSTEINER
Klaus Stanke
Michael Baunach
Original Assignee
Andritz Technology And Asset Management 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 Andritz Technology And Asset Management Gmbh filed Critical Andritz Technology And Asset Management Gmbh
Priority to EP22706288.2A priority Critical patent/EP4211410A1/fr
Publication of WO2022223169A1 publication Critical patent/WO2022223169A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
    • F26B17/26—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by reciprocating or oscillating conveyors propelling materials over stationary surfaces; with movement performed by reciprocating or oscillating shelves, sieves, or trays
    • 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
    • F26B3/14—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 materials or objects to be dried being moved by gravity
    • F26B3/16—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 materials or objects to be dried being moved by gravity in a counter-flow of the gas or vapour
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
    • F26B13/10—Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials
    • F26B13/105—Drying webs by contact with heated surfaces other than rollers or drums
    • F26B13/106—Drying webs by contact with heated surfaces other than rollers or drums by moving them through a fluidised bed of heated particles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
    • F26B13/10—Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials
    • F26B13/14—Rollers, drums, cylinders; Arrangement of drives, supports, bearings, cleaning
    • F26B13/18—Rollers, drums, cylinders; Arrangement of drives, supports, bearings, cleaning heated or cooled, e.g. from inside, the material being dried on the outside surface by conduction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B15/00—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
    • F26B15/02—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in the whole or part of a circle
    • F26B15/04—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in the whole or part of a circle in a horizontal plane
    • F26B15/06—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in the whole or part of a circle in a horizontal plane involving several planes, one above the other
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
    • F26B2200/08—Granular materials

Definitions

  • the invention relates to a device for treating a lumpy material with a gas, comprising at least one product inlet, a product space, a product outlet, at least one gas inlet, at least one gas outlet and a base, wherein the material can be fed to the base in the product space via the product inlet Material can be fed in a conveying direction via the base to the product outlet, the base has openings and gas can be fed via the at least one gas inlet through the openings in the base to the product space and further to the gas outlet, the material being guided via the base in cross-flow to the gas, wherein the base is designed as a stationary base, the base has at least a first area and a second area, the second area immediately following the first area in the conveying direction, the base in the second area being offset normal to the conveying direction and arranged under the base in the first area and about one with the Vor direction connected vibrator the soil can be set in motion.
  • the invention also relates to the use of the device according to the invention for treating a lumpy material.
  • CN111174533A describes a stepped vibration fluidized bed dryer with an agitator which extends vertically into the drying chamber of the vibration fluidized bed dryer and is arranged directly above the first sieve tray of the vibration fluidized bed dryer.
  • CN202204244U relates to a multi-layer tower fluidized bed dryer with a rotatable overflow weir.
  • a fluidized bed allows, among other things, effective heat transfer between a lumpy material and a gas, whereby the lumpy material is fluidized in the gas.
  • a device for forming a fluidized bed typically comprises a product inlet, through which the lumpy material is introduced into the device, and a floor, with the fluidized bed of fluidized material being formed above the floor in the product space.
  • the tray is typically designed as a distribution tray, with gas that is supplied to the device via the gas inlet being supplied to the fluidized bed or the product space through openings in the distribution tray. In terms of continuous operation material is continuously drawn off via the product outlet or gas is drawn off via the gas outlet.
  • a fluidized bed is characterized in particular by the high degree of mixing of the lumpy material.
  • Devices for forming a fluidized bed are used, inter alia, in the drying, heating or cooling of chunky foodstuffs or foodstuff components, with the processing of foodstuffs being associated with high requirements in terms of flygiene.
  • the aim of the invention is a device for treating a lumpy material, which allows a good heat exchange, in the sense of cooling or heating, and/or material exchange, in the sense of a drying or reaction.
  • the device comprises a product space in which the lumpy material is treated.
  • lumpy material are flakes, platelets, but also pellets and extrudates. This material is sometimes difficult to fluidize, tends to get stuck and, when air flows through it, to form cohesive layers of material which, in extreme cases, completely lift off the ground as a whole.
  • Flakes which are particularly difficult to fluidize, typically have a platelet shape with a thickness of ⁇ 1 mm and a diameter of 1-30 mm.
  • the invention can also be used advantageously with a material in platelet form with a thickness of 1-10 mm, or with a cylindrical material, such as pellets or extrudates, with a diameter of 0.1-10 mm and a length of 1-10 mm.
  • the product space is enclosed by the floor and a hood.
  • the product space includes a stationary floor and thus analogously a built-in, non-moving or static floor.
  • the bottom has openings and can be designed as a gas distribution plate, for example. Gas, eg air, is supplied to a first side of the tray via the gas inlet and further supplied to the product space through the openings in the tray.
  • Gas eg air
  • the lumpy material is fed via the product inlet to a second side of the floor, which is opposite the first side, and further fed in a conveying direction to the product outlet.
  • the lumpy material is guided in cross-flow to the gas, ie the gas flowing through the openings in the tray flows around the lumpy material guided on the tray, effective treatment in the sense of the above mass transfer and/or heat exchange taking place.
  • the use of a stationary floor allows the gas to be introduced very evenly into the product space, is a robust and uncomplicated solution, while areas that are difficult to access are avoided, which is advantageous in terms of hygiene and cleanability.
  • the combination according to the invention of the stationary floor through which flow occurs together with the device set in vibration or the vibrating floor has a synergistic effect in that a relative movement between floor and material in the conveying direction is achieved.
  • the device according to the invention is further connected to a vibrator, whereby the soil is made to vibrate by shaking the device.
  • a vibrator whereby the soil is made to vibrate by shaking the device.
  • a direct connection of the floor with a vibrator is possible as an alternative.
  • the use of a vibrator has the effect that the lumpy material is conveyed in the conveying direction by the vibrations on the floor. This benefit is This is particularly the case with a poorly fluidizable material, since a poorly fluidizable material tends, for example, to form entangled layers of material and cannot be conveyed satisfactorily on a floor by fluidization.
  • Suitable vibration motors are known to those skilled in the art.
  • the device according to the invention is further characterized in that the base has at least a first area and a second area, with the second area immediately following the first area in the conveying direction and the base of the second area being arranged offset under the base of the first area normal to the conveying direction is.
  • the device can also be designed in such a way that the bottom also has other areas which are designed in a stepped manner.
  • the floor is thus designed in a stepped manner, with a first area and a second area being connected via a wall.
  • the optimal step height depends on the lumpy material used and the layer height, with advantageously a minimum fall height of the lumpy material corresponding to 1.5 times the material layer height in the first area of the floor being realized.
  • An advantageous fall height is, for example, greater than 50 mm and preferably greater than 150 mm.
  • the second portion of the floor is arranged substantially parallel to the first portion of the floor.
  • the wall is typically normal to the first and second portions of the floor.
  • the stepped design has the effect that the lumpy material, which is transported through the vibrating floor in the conveying direction, falls over a drop height during the transition from the first area of the floor to the second, lower-lying area of the floor, with an unexpectedly effective mixing or rearrangement of the lumpy material takes place. For example, interlocked material layers are broken open and the interlocked lumpy material is separated again. This redistributes and mixes material throughout the material layer height.
  • the device according to the invention is thus distinguished for the treatment of a lumpy material which is difficult to fluidize and tends, for example, to become entangled or to form entangled layers of material, since the device unexpectedly controlled the good material and heat transfer of a flow similar to a fluidized bed Allows transport of the poorly fluidizable material and in particular effective mixing of the poorly fluidizable material.
  • the device is characterized in that the device is free of moving conveying elements for conveying the material and free of moving internals for mixing the material.
  • the essential effect of the product space with a flow-through, stationary floor, free of moving conveying elements or mixing elements, is in particular the aspect of the flygiene.
  • the clearly defined openings in the floor avoid areas where lumpy material or abrasion can accumulate or adhere.
  • endlessly circulating conveying elements, such as sieves or perforated belts, or moving mixing devices are unsuitable, as they tend to accumulate larger amounts of dirt in areas that are difficult to access and inspect.
  • the device according to the invention is therefore suitable for applications with high hygienic requirements, e.g. in the food industry.
  • the invention thus meets high demands in terms of hygiene, since no moving elements are required in the product space.
  • the device has a weir between the first area and the second area and/or between the area of the floor upstream of the product outlet in the conveying direction and the product outlet.
  • the height of the weir can be adjusted.
  • the weir allows the height of the material layer in the area of the ground upstream of the weir to be adjusted.
  • the weir offers the additional advantage that the height of the weir increases the height of fall of the material between the first area of the floor and the second area of the floor and increases the effect of the mixing of the material falling from the first area into the second area.
  • the first area and the second area are connected via a wall, the wall having openings through which openings gas can be guided through the wall into the product space.
  • the wall is typically positioned normal to the first and second portions of the floor. Since the direction of conveyance is parallel to the area of the bottom, the wall is essentially normal to the direction of conveyance.
  • the lumpy material falls from the first area of the floor into the second area of the floor, with a gas flowing out of the openings in the wall optionally hitting the lumpy material and additionally allowing improved mixing of the material.
  • the base has an additional heat exchanger on the underside.
  • the heat transfer between the gas and the lumpy material takes place on the one hand directly between the material and the gas, but also via the contact between the base and the material, with heat transfer between the gas and the base on the side opposite the material.
  • Additional heat exchangers on the side opposite the material further increase the heat transfer between the material and the ground.
  • the additional heat exchanger is designed, for example, in the form of channels on the side of the base opposite the material, with a gaseous or liquid heat carrier flowing through the channels.
  • the invention also relates to the use of the device according to the invention for treating a lumpy material with a gas.
  • the lumpy material is fed via the product inlet to the floor in the product space of the device and guided on the floor in the conveying direction to the product outlet.
  • Gas is also supplied to the device via the at least one gas inlet and further introduced into the product space through the openings in the base in a cross-flow to the material guided on the base in the conveying direction.
  • the use according to the invention is characterized in that the lumpy material is conveyed from the first area of the floor to the second area of the floor by vibration of the floor and the material falls from the higher first area of the floor into the lower second area of the floor. The use allows a good heat exchange and / or mass transfer.
  • the material is cooled or heated by the gas.
  • the material is dried analogously with the corresponding state of the gas with regard to its temperature or humidity.
  • the conditioning of the air can be advantageous here, for example the regulation of the dew point of the gas.
  • the use is particularly effective in the treatment of difficult to fluidize, lumpy material that tends to become entangled or to form entangled material layers.
  • the height of the material layer can be 50-150 mm, for example.
  • the gas throughput would be increased to increase the mixing, which, however, in the case of poorly fluidizable material, primarily leads to an increased discharge of material with the gas through the gas outlet, to an uneven distribution of the gas and thus to an uneven treatment of the material Gas or leads to increased energy consumption due to the increased gas throughput.
  • the use according to the invention allows the advantages of an effective material or heat transfer of a fluidized bed to be combined with thorough mixing of a material that is actually difficult to fluidize.
  • the treatment of a lumpy material with a device according to the invention which has a weir with a weir height between the first area and the second area and/or between the area of the base upstream of the product outlet in the conveying direction and the product outlet, allows the layer height of the material in the first Set the area of the floor or the upstream area of the floor via the weir height of the weir. In this way, the dwell time of the material in the different areas of the product space can easily be adjusted.
  • the weir offers the additional advantage that the drop height of the material is increased by the weir height in addition to the distance between the areas separated by the weir.
  • the mixing of the lumpy material as it falls from the first area into the second area of the floor can be increased by introducing gas into the material space from the openings in the wall connecting the areas, with the gas being directed against the falling material or the free jets emerging from the openings in the wall are directed.
  • the mixing of the material can be improved by breaking up interlocked layers of material.
  • the lumpy material is treated by the gas flowing around the material.
  • heat exchange also takes place directly between the material and the ground.
  • the latter heat exchange can be additionally increased by imposing an additional heat transfer between individual areas of the base and a heat transfer medium, which can be liquid or gaseous and is guided, for example, in channels on the side of the base opposite the material.
  • the use according to the invention can be used advantageously in the treatment of a material that is difficult to fluidize, e.g. pellets, but also flakes. Flakes and pellets are sometimes difficult to fluidize, tend to get stuck and, when fluidized, form entire layers of material.
  • a particularly favorable application example for use is the cooling of milk flakes.
  • the water content of the milk is typically first reduced in an evaporator to form a concentrate, with the concentrate being further dried, for example, on a drum dryer to form milk flakes .
  • Such milk flakes typically have a platelet shape and a diameter of 1-30 mm, a thickness of ⁇ 1 mm and are very difficult to fluidize.
  • milk flakes tend to get stuck or to form stuck layers during fluidization.
  • the milk flakes are cooled before further comminution to form milk powder, for example by grinding.
  • a treatment, i.e. a cooling, of the milk flakes is advantageously carried out by the use according to the invention. Cooling the milk flakes prevents the milk flakes from sticking together during the comminution and improves the product properties, such as storage stability.
  • 1 shows a device for treating a lumpy material with a gas according to the prior art.
  • 2 shows a device according to the invention for treating a lumpy material.
  • FIG 3 shows a further device according to the invention for treating a lumpy material.
  • Fig. 1 shows a device for treating a lumpy material with a gas in a fluidized bed according to the prior art.
  • the lumpy material is fed to the product space 14 of the device 11 via the product inlet 1 .
  • Gas is also supplied to the device 11 through at least one gas inlet 3 , the gas flowing through openings 7 in the base 5 into the product space 14 .
  • the material on the floor 5 is fluidized by the gas flowing out of the openings 7 in the floor 5 .
  • the floor 5 can be configured in areas 8.9, with the individual areas 8.9 being assigned different gas inlets 3, for example.
  • the gas is drawn off via the gas outlet 4, and the treated material is drawn off via the product outlet 2.
  • a fluidized bed is particularly suitable for material that can be easily fluidized. Then, of course, there is good mixing and treatment of the material.
  • FIG. 2 shows a device according to the invention for treating a lumpy material.
  • the lumpy material is fed to the product space 14 of the device 11 via the product inlet 1 .
  • Gas is also supplied to the device 11 through at least one gas inlet 3 , the gas flowing through openings 7 in the base 5 into the product space 14 .
  • the product space 14 is enclosed by the base 5 and a fluff.
  • the bottom 5 of the device shown in FIG. 2 has a first area 8 and a second area 9 immediately following it.
  • devices 11 can also be designed in such a way that the bottom has additional areas.
  • the lumpy material is guided in the conveying direction 6 on the floor 5 to the product outlet 2, with the gas being guided through the openings 7 in the floor 5 in cross-flow to the material.
  • the device 11 is connected to a vibrator 10, as a result of which the device and the floor 5 are made to vibrate. Due to the vibration of the floor 5, the material is guided in the conveying direction 6, or from the first area 8 into the second area 9 of the floor 5, with the floor 5 being designed in a stepped manner, so that the second area 9 is offset normal to the conveying direction 6 below the Floor 5 of the first region 8 is arranged. According to the invention, that falls lumpy material from the first area 8 over a drop height in the lower-lying second area 9, which results in an intensive mixing of the material.
  • the wall 13 connects the first area 8 and the second area 9 of the floor.
  • the device according to the invention and the use are particularly suitable for the treatment of lumpy material that is difficult to fluidize, ie material that tends to become entangled, or for the formation of interlocked layers. Due to the stepped design of the floor, a significantly improved mixing and treatment of the material can be achieved.
  • the optional weir 12 is shown, which has a weir height and is arranged between the first area 8 and the second area 9 and/or between the area 9 of the base 5 upstream of the product outlet 2 in the conveying direction 6 and the product outlet 2 .
  • the weir 12 can, for example, be designed to be adjustable in the weir height and allows the layer height of the material in the area of the soil 5 upstream of the weir to be adjusted via the weir height. In addition, the fall height of the material increases by the height of the weir.
  • Optional openings 7 in the wall 13 are also shown in FIG. 3 . Gas is introduced into the product chamber 14 through the openings 7 in the wall 13 connecting the first region 8 and the second region 9, with the gas or the free jet emerging from the respective opening 7 counteracting the flow from the higher-lying first region 8 into the lower-lying second Area 9 falling material is directed.
  • Milk flakes for example, can be particularly advantageously cooled with the use according to the invention. Milk flakes are difficult to fluidize and tend to get stuck or form stuck layers. With the device according to the invention, far better treatment of the milk flakes can be achieved because better mixing.
  • the present invention offers numerous advantages. It allows advantageous treatment because of improved mixing of a lumpy material that is difficult to fluidize.
  • the more efficient treatment of the material directly reduces the material space required for the treatment, or the device size/device length.
  • the improved mixing is possible without increasing the gas throughput, which is advantageous in terms of energy.
  • the invention solves the problem of the lack of thorough mixing of a poorly fluidizable material in vibrating fluidized bed coolers, with moving installations in the material layer being dispensed with to improve thorough mixing.
  • the invention is therefore also advantageous in applications with high hygienic requirements, for example in the food industry.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)

Abstract

L'invention se rapporte à un appareil (11) et à un procédé de traitement d'un matériau grumeleux au moyen d'un gaz, le matériau étant guidé dans une direction de transport (6) sur la partie inférieure (5) et dans un agencement d'écoulement transversal avec le gaz. L'invention est caractérisée en ce que la partie inférieure (5) présente une première région (8) et une seconde région (9), la partie inférieure (5) dans la seconde région (9) étant positionnée au-dessous de la partie inférieure (5) dans la première région (8) de manière à être décalée perpendiculairement à la direction de transport (6), le fait de faire vibrer la partie inférieure (5) étant possible à l'aide d'un dispositif vibreur (10) qui est relié à l'appareil (11). Ceci conduit à un mélange amélioré du matériau grumeleux présentant une consommation d'énergie réduite.
PCT/EP2022/053780 2021-04-21 2022-02-16 Appareil et procédé de traitement d'un matériau grumeleux WO2022223169A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP22706288.2A EP4211410A1 (fr) 2021-04-21 2022-02-16 Appareil et procédé de traitement d'un matériau grumeleux

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50296/2021 2021-04-21
ATA50296/2021A AT525005B1 (de) 2021-04-21 2021-04-21 Vorrichtung zur behandlung eines stueckigen materials und verfahren zur waermeuebertragung

Publications (1)

Publication Number Publication Date
WO2022223169A1 true WO2022223169A1 (fr) 2022-10-27

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PCT/EP2022/053780 WO2022223169A1 (fr) 2021-04-21 2022-02-16 Appareil et procédé de traitement d'un matériau grumeleux

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EP (1) EP4211410A1 (fr)
AT (1) AT525005B1 (fr)
WO (1) WO2022223169A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3216344A (en) * 1963-05-28 1965-11-09 Eldon C Beagle Machine and method for drying and sterilizing rice hulls
CN87210154U (zh) * 1987-07-15 1988-06-15 中国农业工程研究设计院 往复振动筛式连续干燥机
US4785551A (en) * 1987-05-28 1988-11-22 Kraft, Inc. Method for drying confection pieces
CN2090502U (zh) * 1991-06-14 1991-12-11 东北工学院 阶梯式振动干燥机
CN202204244U (zh) 2011-09-02 2012-04-25 济钢集团重工机械有限公司 多层塔式流化床干燥器
CN111174533A (zh) 2020-02-10 2020-05-19 无锡科技职业学院 一种阶梯式振动流化床干燥机

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100146814A1 (en) * 2008-12-11 2010-06-17 Baker Stephen T Vibratory Flash Dryer
CN101545708B (zh) * 2009-03-30 2010-08-25 江阴丰力生化工程装备有限公司 内置管束加热器振动流化床干燥机
US20160348966A1 (en) * 2015-05-29 2016-12-01 Kason Corporation Dual Deck Fluid Bed Processor With Separate Air Flows

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3216344A (en) * 1963-05-28 1965-11-09 Eldon C Beagle Machine and method for drying and sterilizing rice hulls
US4785551A (en) * 1987-05-28 1988-11-22 Kraft, Inc. Method for drying confection pieces
CN87210154U (zh) * 1987-07-15 1988-06-15 中国农业工程研究设计院 往复振动筛式连续干燥机
CN2090502U (zh) * 1991-06-14 1991-12-11 东北工学院 阶梯式振动干燥机
CN202204244U (zh) 2011-09-02 2012-04-25 济钢集团重工机械有限公司 多层塔式流化床干燥器
CN111174533A (zh) 2020-02-10 2020-05-19 无锡科技职业学院 一种阶梯式振动流化床干燥机

Also Published As

Publication number Publication date
EP4211410A1 (fr) 2023-07-19
AT525005B1 (de) 2023-02-15
AT525005A1 (de) 2022-11-15

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