WO1995014201A1 - Appareil de sechage - Google Patents

Appareil de sechage Download PDF

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Publication number
WO1995014201A1
WO1995014201A1 PCT/AU1994/000707 AU9400707W WO9514201A1 WO 1995014201 A1 WO1995014201 A1 WO 1995014201A1 AU 9400707 W AU9400707 W AU 9400707W WO 9514201 A1 WO9514201 A1 WO 9514201A1
Authority
WO
WIPO (PCT)
Prior art keywords
drying
chamber
primary
drying apparatus
operative
Prior art date
Application number
PCT/AU1994/000707
Other languages
English (en)
Inventor
Keith William Jackwitz
Susan Margery Jean Marsh
William Manteufel
Hazel Grace Jackwitz
Robert Charles Maguire
Colin Raymond Fuller
Original Assignee
Dri-Pack Pty. Ltd.
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 Dri-Pack Pty. Ltd. filed Critical Dri-Pack Pty. Ltd.
Priority to AU81362/94A priority Critical patent/AU8136294A/en
Publication of WO1995014201A1 publication Critical patent/WO1995014201A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B7/00—Preservation or chemical ripening of fruit or vegetables
    • A23B7/02—Dehydrating; Subsequent reconstitution
    • A23B7/0205—Dehydrating; Subsequent reconstitution by contact of the material with fluids, e.g. drying gas or extracting liquids
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/40—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by drying or kilning; Subsequent reconstitution
    • 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
    • F26B17/02—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by belts carrying the materials; with movement performed by belts or elements attached to endless belts or chains propelling the materials over stationary surfaces
    • F26B17/04—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by belts carrying the materials; with movement performed by belts or elements attached to endless belts or chains propelling the materials over stationary surfaces the belts being all horizontal or slightly inclined
    • 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
    • F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
    • F26B9/06—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers
    • F26B9/066—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers the products to be dried being disposed on one or more containers, which may have at least partly gas-previous walls, e.g. trays or shelves in a stack

Definitions

  • This invention relates to drying apparatus.
  • This invention has particular but not exclusive
  • Drying of food products may be incorporated in the processing of foods where, for example, the food product is to be stored for an extended period of time.
  • Food dryers typically use a closed system where the air used for drying is recycled, or alternatively, an open system where fresh air is passed across or through the food product to be dried but the air is not recycled.
  • the closed systems dry the product by contacting air with the product, thus humidifying the air.
  • Moisture is removed from the air by a refrigeration system which recovers the energy from the moisture vapour and the dried air is recycled, and may be partly reheated using the energy
  • the open systems require large amounts of energy to heat the air passing over the food product. In the absence of air heating, the surface moisture evaporation rate is not sufficiently high to permit drying of the food product prior to its deterioration.
  • the present invention aims to alleviate one or more of the above disadvantages and to provide drying apparatus which will be reliable and efficient in use.
  • this invention in one aspect resides broadly in drying apparatus including:- a primary drying chamber for receiving an operative quantity of material to be dried;
  • a secondary drying chamber for receiving material from said primary chamber, said secondary chamber being able to contain a plurality of operative quantities of material from said primary chamber;
  • transfer means for transferring the material from the primary chamber to the secondary chamber
  • heating means for heating the drying medium supplied to said drying chambers.
  • the primary drying chamber is a fluidized bed chamber and the secondary drying chamber includes a tray.
  • the secondary chamber may include a plurality of trays in stacked arrangement. Solids may be agitated in the primary chamber such that fresh material is mixed with solids in the fluidized bed and an overflow of such solids from the primary stage is transported to the second stage, such as by gravity, it will be appreciated that for some material, baskets, bags or such like which may be inserted and retained in the secondary chamber for a suitable interval of time and then removed and replaced with a subsequent load of solids to be dried.
  • the fluidized bed is charged with a batch of material to be dried, and operated for a time sufficient to remove most of the easily removed moisture and thereafter, the material is transferred from the fluidized bed to the secondary chamber prior to the primary chamber being refilled with a fresh operative quantity of material to be dried.
  • the fluidized bed is preferably fluidized by passing the drying medium upwardly through the material to be dried and downwardly through the ssecondary chamber wherein the material is suitably supported on trays to be dried thereon.
  • the supply means may circulate the an air supply through the drying apparatus in any sequence, including being arranged to direct the drying medium through both drying chambers in parallel, in series, or in combination of same, Preferably, the supply means circulates the air supply from an air inlet successively through said secondary drying chamber and said primary drying chamber. Additionally, a recirculating supply path through said primary chamber may be included in the supply means.
  • drying medium is recirculated to the primary chamber and that the remainder is discharged, the amount of drying medium discharged being replenished by fresh drying medium received through the fluid inlet.
  • the supply means may also include recovery means for recovering heat from the gaseous drying medium discharged externally of the drying chambers, and the recovery means supplying heat to the heating means.
  • recovery means for recovering heat from the gaseous drying medium discharged externally of the drying chambers
  • an external heat supply may be provided with no heat being recovered if desired.
  • the heating means is disposed in the air inlet to the secondary chamber.
  • the supply means includes a pump for fluidizing the material in the primary chamber and preferably the inlet to the pump communicates with the secondary chamber whereby process air is received by the pump.
  • the secondary chamber may include a slow moving conveyor belt, the rate of movement being adjusted or adjustable to permit the plurality of operative quantities of material to be transferred thereto.
  • the secondary drying chamber contains a plurality of holding stations for holding respective batches of material from the primary chamber. However it is achieved it is desired to maintain the material in the secondary chamber for a much longer period than the material is held in the primary chamber.
  • the primary and secondary chambers may include respective transport means for
  • the transport means may be a screw feeder, belt or conveyor, or other solids transport apparatus passing through both drying stages.
  • the conveyor would preferably operate at different speeds for the different stages.
  • drying medium is passed across the material to be dried on a non-porous tray in either the primary or secondary chamber.
  • the drying medium may be passed upwardly through the material on the porous tray, however, as material in the second stage is approaching the desired dryness, such an arrangement is believed to be unsuitable if the dried material is buoyant in the upward draught of drying medium.
  • the porous tray may be substituted by a porous belt having a slow rate of travel through the drying apparatus so that solids may be dried in a continuous process.
  • the belt may be kept stationary until the dried material is ready for discharge, whereupon, the belt is activated to remove the dried material from the second stage through the solids outlet.
  • a plurality of porous trays are provided and loaded with solids to be dried from the first stage in a batchwise continuous process. Accordingly, the material dried partially in the first stage may be transferred to a first tray in portions and retained on the tray for a period sufficient to permit the second stage of the drying process to proceed.
  • the ratio of capacities for the operative quantities between the primary and secondary chambers is suitably in the order of between nine and eighteen and preferably approximately twelve.
  • each download is deposited on the previous download, so that slightly moister material is on the top, which is exposed to the driest air.
  • a second tray is provided for receiving a like number of portions downloaded from the first stage whilst the material on the first tray is retained in the second portion for the second Stage of the drying process.
  • the second stage of the drying process removes most of the remaining moisture which is typically more difficult to remove than the moisture removed in the first drying stage.
  • the fresh first tray receives 5 or 6 portions from the first stage after the second tray has been loaded, and the process is repeated by swapping the downloading from one tray to the other.
  • the first stage is preferably replenished with material to be dried after downloading each portion to the second stage.
  • each portion constitutes
  • the dried material may be packed or packaged from the tray removed from the drying apparatus and the tray may be re-used.
  • the trays may be provided in a stack of trays, and the first download deposited onto the lowest tray in the stack, and then for each subsequent download, another tray added to the stack above the previous tray and the downloaded material deposited onto the most recently added tray.
  • the drying apparatus include fluid temperature adjustment means for raising and/or lowering the temperature of the drying medium fluid passing around and through the drying apparatus.
  • the fluid may be cooled by a refrigeration system and heated by a heating system,
  • the drying medium is suitably supplied to the drying chambers at or above ambient temperature and any dehumidifying is performed on the medium which is exhausted to atmosphere to recover process energy. This alleviates the risk of contaminating the drying medium with microbial conmtamination which occurs on surfaces made damp by a dehumidifying action.
  • the drying medium is a gas and the fluid transport means is a blower for recirculating and discharging the gas through and from the drying apparatus.
  • the dehumidifying system lowers the temperature of the gas in such manner as to remove moisture therefrom, and the gas is subsequently heated with the recovered process energy to a temperature suitable for drying the solids in the drying apparatus.
  • the moisture is removed from the drying medium externally to the primary and secondary
  • this invention resides broadly in drying apparatus including first and second drying stages through which material to be dried may be passed in a drying medium and characterised in that the residence time for material passing through the second drying stage is much greater than the residence time for material passing through the first drying stage.
  • the ratio of residence times is suitably in the order of between nine and eighteen and preferably approximately twelve.
  • this invention resides broadly in a method of drying a material including the steps of:- providing drying apparatus as hereinbefore described; introducing the operative quantity of material into the primary chamber;
  • the operative quantity may be constituted by a batch of material or alternatively by a time rate of flow of material.
  • the operative quantity may be a rate of flow for one drying chamber and a batch for the other drying chamber.
  • the material to be dried is a discrete solid which may fluidized by circulating air.
  • the fluidized bed may be adapted to receive the material at one end of the fluidized bed and transfer partially dried material at the other end of the fluidized bed due to the fluidizing action of the recirculating air to the secondary drying chamber.
  • the fluidizing action constitutes the transfer means operable to transfer the material from the primary drying chamber to the secondary drying chamber.
  • the fluidizing action permits the material to flow
  • a rake assembly or blower arrangement may be provided to transfer material from the top of the fluidized bed to the secondary drying chamber.
  • a spouted bed may be used in the primary chamber and a portion of the material spouted may be transferred to the secondary chamber.
  • the fluidized bed may include a spout portion for spouting the material to be transported to the secondary chamber.
  • the partly dried material is transferred to the secondary drying chamber through transfer means in discrete portions even though the fresh incoming material may be provided continuously.
  • the partially dried material exhibits a much reduced density compared with non- dried material, and the transfer means may be adapted to blow partially dried material buoyed by the draught of the drying medium.
  • this invention resides broadly in a method of drying a material including:- introducing the material into a primary drying chamber; passing the material through the primary drying chamber at a rate sufficient to remove moisture which is easily removed from the material;
  • the drying medium may be a liquid into which moisture from the material to be dried is absorbed, but preferably the drying medium is a gas, such as air.
  • gases may be used, such as nitrogen, carbon dioxide, oxygen, sulfur dioxide or such like, or a mixture of gases if desired.
  • air or other gas may be enriched or modified by the addition of one or more gases, vapours and/or aerosols, and may be used to effect treatments other than, or in addition to, the drying of the material.
  • the drying medium is preferably recirculated, but bled and replenished with fresh drying medium.
  • the drying medium is replaced at a dilution rate sufficient to prevent the build up humidity, contaminating organisms, and/or other undesirable effects. It is also preferred that the incoming air is heated, and the outgoing air is chilled to recover the heat therefrom.
  • the solid dried by the drying apparatus of this invention is stored in cold storage operated synergistically with the heat recovery system of the drying apparatus.
  • the heat source for heating the incoming air may be electrical, combustion heated or such like, but preferably, a waste heat source is used, such as a low grade heat source for example from refrigeration in another area of a food processing plant.
  • a waste heat source is used, such as a low grade heat source for example from refrigeration in another area of a food processing plant.
  • the incoming air is heated to a temperature of between 38 oC and 42°C, and more preferably, to a temperature of 40°C.
  • the recirculating air is heated to a temperature sufficient to substantially disable contaminating organisms.
  • the recirculating air is passed over a condenser heated to a temperature of 60 e C to 65*C, and the exiting air is passed over an
  • evaporator chilled to a temperature of between -6°C to -2°C, but more preferably to a temperature of -5°C.
  • the heat recovered from chilling the outgoing air be used to heat the incoming and/or recycled air.
  • FIG. 1 is a side view of a drying apparatus with side panelling removed
  • FIG. 2 is a top sectional view through section 2-2 of the drying apparatus of FIG. 1;
  • FIG. 3 is an end sectional view through section 3-3 of the drying apparatus of FIG. 1;
  • FIG. 4 is an end sectional view through section 4-4 of the drying apparatus of FIG. 1;
  • FIG. 5 shows a sectional diagrammatic view of transfer means for the drying apparatus of FIG. 1;
  • FIG. 6 is a side view of an alternative drying apparatus with side panelling removed
  • FIG. 7 is a top sectional view through section 7-7 of the drying apparatus of FIG. 6;
  • FIG. 8 is an end sectional view through section 8-8 of the drying apparatus of FIG. 6, and
  • FIG. 9 is an end sectional view through section 9-9 of the drying apparatus of FIG. 6.
  • a drying apparatus 10 includes an insulated housing 11 having a pair of side walls 13, a pair of end walls 16, a top wall 15 and a base wall 14 arranged substantially to form a rectangular prism.
  • the insulated housing 11 is mounted on a pair of mounting skids 12 underneath the base wall 14.
  • the insulated housing 11 has an end access 17 and a rear access 27 in respective ones of the end walls 16, the rear access 27 being in a rear wall 29.
  • Each side wall 13 has a side access 18 and the top wall 15 has a top access 19,
  • the top access 19 may include a top hatch for entry of material to be dried.
  • transverse internal wall 26 extending between the side walls 13 and the top wall 15 and base wall 14. Additionally, an internal wall 25 extends across the drying apparatus 10 between the side walls 13 substantially parallel to the top wall 15 and base wall 14, and includes a pair of internal apertures 39.
  • a blower 22 is provided in the drying apparatus 10 between the transverse internal wall 26 and the end access 17 which define a blower chamber 28.
  • a plenum chamber 23 is provided beneath the internal wall 25 and between the
  • first drying chamber 20 Above the internal wall 25 there is a first drying chamber 20 and two second drying chambers 21 divided from the first drying chamber 20 by a pair of oblique panels 24.
  • a tray support 37 is provided in each respective second drying chamber 21 between the transverse internal wall 26 and the rear wall 29 and displaced above the internal wall 25 but beneath the respective oblique panels 24.
  • a tray 30 may be provided on each tray support 37 to receive material from the first drying chamber 21.
  • the trays 30 and tray supports 37 are substituted by a pair of conveyor belts 35.
  • the belts 35 are porous to permit air to pass therethrough in a similar fashion to the trays 30 on the tray supports 37.
  • the trays are perforated to 40% open area.
  • a fluidized bed 36 is provided in the first drying chamber 20 by providing a porous support 38 having series of apertures in the base wall of the first drying chamber 20 which separates it from the plenum chamber 23.
  • the porous support has perforations to provide a 10% to 13% open area.
  • the oblique panels 24 diverge upwardly so that the fluidized bed 36 is narrower at its base than at its top.
  • the rear wall 29 also has an evaporator 31 mounted therein and the transverse internal wall 26 has a corresponding condenser 32 mounted therein.
  • the side walls 13 include a plurality of pre-heaters 33 for heating air received into the second drying chamber 21.
  • the blower 22 when in operation recirculates air from the plenum chamber 23 and upwardly through the fluidized bed 36 and into the first drying chamber 20. Some of the air received into the first drying chamber 20 is recirculated through the condenser 32 whereupon it is raised in
  • the plenum chamber 23 is of a volume sufficient to permit an even distribution of the air received from the blower 22 to pass upwardly through the fluidized bed 36 to provide a substantially even fluidizing action across the fluidized bed 36.
  • the oblique panels 24 between the first drying chamber 20 and the second drying chambers 21 each include a hinged portion 50 which is pivoted about respective pivots 51 to perform a download of material from the first drying chamber 20 to a respective one of the drying chambers 21,
  • the hinged portion 50 is pivoted in the direction of arrows 55 as the case requires to a position shown in dotted outline.
  • the blower 22 is preferably of a capacity of 10,000 litres per second of air at standard temperature and pressure.
  • the evaporator 31 and the condenser 32 are arranged such that approximately 1/3 of the volume of air produced from the blower 22 is directed through the evaporator 31.
  • baffles or the like flow restrictors are provided in association with the evaporator 31 and the condenser 32 to adjust the throughput in order to achieve the desired ratio of air flows.
  • the plenum chamber 23 has a capacity of 10 times the volumetric flow rate of the hole through the fluidized bed 36.
  • the fluidized bed preferably has apertures which are 1/8 the depth of the bed with an open area of 10% to 12% of the fluidized bed.
  • the pre-heaters 33 are condensers which utilise waste heat.
  • the preferred embodiment has the
  • the air exiting the evaporator 31 is preferably lowered to a temperature of -5°C and the recycled condenser 32 preferably heats to a temperature of 60*C to substantially pasteurize the surfaces of the condenser,
  • the air pressure across the fluidized bed is from 80 mm to 180 mm or preferably 150 mm water pressure and the static pressure on the trays 30 or belts 35 is preferably 50 mm water gauge. Preferably, there is an 80 mm water gauge pressure drop across the trays 30 and tray supports 37 or belts 35.
  • the residents time of material being dried on the trays 30 or belts 35 is 18 hours and the residents time of the material in the fluidized bed is of the order of 90 minutes.
  • the depth of material on the trays 30 or belts 35 is 400 mm to 600 mm.
  • the material to be dried may be any material as
  • the dryer of the present invention is suitable for drying such food substances as carrot, capsicum, potato, onion, celery, garlic etc and it also is suitable for leaf lines such as lettuce, spinach, tobacco leaf and such like. Additionally, a radiant heat
  • disinfection means may be provided in the plenum chamber 23 such as a UV light source or the like.
  • a drying apparatus of the present invention takes advantage of the drying characterises of food substances which have a falling drying rate when received into the drying apparatus and processed by the fluidized bed and a constant drying rate which is processed on the trays 30 or belts 35.
  • the hinged portion 50 is opened at suitable intervals to the other side to download to the other tray 30.
  • the hinged portion 50 is opened for a time sufficient to permit substantially all of the material in the first drying chamber 20 to be downloaded to the respective second drying chamber 21.
  • Partially dried feed received onto trays 30 is removed after a suitable drying period, such as 18 hours, or the respective belts 35 are slowly transport the drying material along the second drying chamber 21 towards the rear wall 29, whereupon it exits the drying apparatus 40 to a hopper, bagging machine, or further processing as desired.
  • the process is preferably automated and either continuous or batchwise continuous.
  • the respective belts 35 may be designed to deposit the dried material into a hopper or surge bin inside the drying apparatus 10.
  • the drying apparatus of this invention is directed towards effecting the first stage of the drying process in as short a time as possible to minimize the possibility of deterioration and/or contamination of the product to be dried. It is believed that this is achieved by utilising a large volume of high velocity air in contact with the product to be dried. It is believed that the product is dried in the first stage substantially in the "falling rate" portion of the drying curve, with the second stage of the drying process substantially within the "constant rate” portion of the drying curve. Additionally, the drying apparatus of this invention is arranged such that the drying medium received into and recirculating within the apparatus is not exposed to a surface at or less than the dew point of water before the drying medium has been contacted with the product.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Health & Medical Sciences (AREA)
  • Nutrition Science (AREA)
  • Microbiology (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

Un appareil (10) de séchage, qui permet de sécher un produit alimentaire ou analogue, comprend une chambre (20) de séchage primaire qui reçoit une quantité opérationnelle d'une matière à sécher, une chambre (21) de séchage secondaire qui reçoit la matière de la première chambre et peut contenir plusieurs quantités opérationnelles en provenance de la première chambre, un dispositif (50) de transfert faisant passer la matière d'une chambre à l'autre, un dispositif (22) d'alimentation qui alimente ces chambres en milieu gazeux de dessication, et un dispositif (33) de chauffage qui chauffe ce milieu de dessication amené aux chambres de séchage. De préférence, la chambre de séchage primaire est une chambre (36) à lit fluidisé et la chambre de séchage secondaire comporte un plateau (30) destiné à recevoir la matière venant de la première chambre une fois qu'elle y a été partiellement séchée.
PCT/AU1994/000707 1993-11-15 1994-11-15 Appareil de sechage WO1995014201A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU81362/94A AU8136294A (en) 1993-11-15 1994-11-15 Drying apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPM243393 1993-11-15
AUPM2433 1993-11-15

Publications (1)

Publication Number Publication Date
WO1995014201A1 true WO1995014201A1 (fr) 1995-05-26

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PCT/AU1994/000707 WO1995014201A1 (fr) 1993-11-15 1994-11-15 Appareil de sechage

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Country Link
WO (1) WO1995014201A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1136000A2 (fr) * 2000-03-21 2001-09-26 Eiyoh Co., Ltd. Procédé à deux étapes de sèchage de produits en purée et dispositif à cet effet
ES2307371A1 (es) * 2006-02-02 2008-11-16 Institut De Recerca I Tecnologia Agroalimentaries Procedimiento para el secado de productos alimenticios e instalacion para llevar a cabo dicho procedimiento.
ITGE20120056A1 (it) * 2012-06-13 2013-12-14 Marco Zipoli Metodo ed apparecchiatura per l'essicamento di prodotti alimentari
CN104287083A (zh) * 2014-10-28 2015-01-21 重庆大学 具有均匀送风的节能型气流上升式密集烤房
CN110665559A (zh) * 2019-11-06 2020-01-10 核工业理化工程研究院 碳硫分析坩埚的存储装置

Citations (7)

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Publication number Priority date Publication date Assignee Title
US3513560A (en) * 1967-03-02 1970-05-26 Celleco Ab Method in drying of hydrous solid material and the subsequent heat treatment of the dried material
US3589027A (en) * 1968-11-08 1971-06-29 Royal Industries Apparatus for drying
US3740861A (en) * 1970-06-17 1973-06-26 Cities Service Co Method for drying carbon black pellets
FR2425043A1 (fr) * 1978-05-03 1979-11-30 Gourmelen Jacqueline Procede et dispositif de sechage pour produits d'origine vegetale tels que pulpe de betterave, luzerne, herbe, etc.
US4492040A (en) * 1980-11-20 1985-01-08 A/S Niro Atomizer Method and apparatus for drying a pulverulent or particulate product
DE4205619A1 (de) * 1992-02-25 1993-08-26 Gea Canzler Gmbh & Co Verfahren und vorrichtung zur reduzierung des fluessigkeitsgehalts von gemischen von feststoffen und fluessigkeiten
JPH0670680A (ja) * 1992-08-28 1994-03-15 Kawasaki Kiko Co Ltd 製茶乾燥機

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3513560A (en) * 1967-03-02 1970-05-26 Celleco Ab Method in drying of hydrous solid material and the subsequent heat treatment of the dried material
US3589027A (en) * 1968-11-08 1971-06-29 Royal Industries Apparatus for drying
US3740861A (en) * 1970-06-17 1973-06-26 Cities Service Co Method for drying carbon black pellets
FR2425043A1 (fr) * 1978-05-03 1979-11-30 Gourmelen Jacqueline Procede et dispositif de sechage pour produits d'origine vegetale tels que pulpe de betterave, luzerne, herbe, etc.
US4492040A (en) * 1980-11-20 1985-01-08 A/S Niro Atomizer Method and apparatus for drying a pulverulent or particulate product
DE4205619A1 (de) * 1992-02-25 1993-08-26 Gea Canzler Gmbh & Co Verfahren und vorrichtung zur reduzierung des fluessigkeitsgehalts von gemischen von feststoffen und fluessigkeiten
JPH0670680A (ja) * 1992-08-28 1994-03-15 Kawasaki Kiko Co Ltd 製茶乾燥機

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Title
PATENT ABSTRACTS OF JAPAN, C-1213, page 30; & JP,A,06 070 680 (KAWASAKI KIKO PTY LTD), 15 March 1994. *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1136000A2 (fr) * 2000-03-21 2001-09-26 Eiyoh Co., Ltd. Procédé à deux étapes de sèchage de produits en purée et dispositif à cet effet
SG90134A1 (en) * 2000-03-21 2002-07-23 Eiyoh Co Ltd 2-step method for drying mash-products and device thereof
EP1136000A3 (fr) * 2000-03-21 2003-10-22 Eiyoh Co., Ltd. Procédé à deux étapes de sèchage de produits en purée et dispositif à cet effet
ES2307371A1 (es) * 2006-02-02 2008-11-16 Institut De Recerca I Tecnologia Agroalimentaries Procedimiento para el secado de productos alimenticios e instalacion para llevar a cabo dicho procedimiento.
ITGE20120056A1 (it) * 2012-06-13 2013-12-14 Marco Zipoli Metodo ed apparecchiatura per l'essicamento di prodotti alimentari
WO2013185914A2 (fr) 2012-06-13 2013-12-19 Cortinetix Pharma S.R.L. Procédé et appareil utilisables en vue de la déshydratation de produits alimentaires
WO2013185914A3 (fr) * 2012-06-13 2014-02-06 Cortinetix Pharma S.R.L. Procédé et appareil utilisables en vue de la déshydratation de produits alimentaires
CN104287083A (zh) * 2014-10-28 2015-01-21 重庆大学 具有均匀送风的节能型气流上升式密集烤房
CN110665559A (zh) * 2019-11-06 2020-01-10 核工业理化工程研究院 碳硫分析坩埚的存储装置

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