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WO2007061352A1 - Appareil de sechage de materiau en particules - Google Patents

Appareil de sechage de materiau en particules Download PDF

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Publication number
WO2007061352A1
WO2007061352A1 PCT/SE2006/001267 SE2006001267W WO2007061352A1 WO 2007061352 A1 WO2007061352 A1 WO 2007061352A1 SE 2006001267 W SE2006001267 W SE 2006001267W WO 2007061352 A1 WO2007061352 A1 WO 2007061352A1
Authority
WO
WIPO (PCT)
Prior art keywords
container
air
drying
particle
fan
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.)
Ceased
Application number
PCT/SE2006/001267
Other languages
English (en)
Inventor
Lennart Granstrand
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.)
Svensk Rokgasenergi Intressenter AB
Original Assignee
Svensk Rokgasenergi Intressenter AB
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 Svensk Rokgasenergi Intressenter AB filed Critical Svensk Rokgasenergi Intressenter AB
Publication of WO2007061352A1 publication Critical patent/WO2007061352A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L5/00—Solid fuels
    • C10L5/40—Solid fuels essentially based on materials of non-mineral origin
    • C10L5/44—Solid fuels essentially based on materials of non-mineral origin on vegetable substances
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
    • F26B11/12—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in stationary drums or other mainly-closed receptacles with moving stirring devices
    • 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
    • F26B17/12—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft
    • F26B17/14—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft the materials moving through a counter-current of gas
    • F26B17/1433—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft the materials moving through a counter-current of gas the drying enclosure, e.g. shaft, having internal members or bodies for guiding, mixing or agitating the material, e.g. imposing a zig-zag movement onto the material
    • F26B17/1466—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft the materials moving through a counter-current of gas the drying enclosure, e.g. shaft, having internal members or bodies for guiding, mixing or agitating the material, e.g. imposing a zig-zag movement onto the material the members or bodies being in movement
    • F26B17/1483—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft the materials moving through a counter-current of gas the drying enclosure, e.g. shaft, having internal members or bodies for guiding, mixing or agitating the material, e.g. imposing a zig-zag movement onto the material the members or bodies being in movement the movement being a rotation around a vertical axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/06—Controlling, e.g. regulating, parameters of gas supply
    • F26B21/10—Temperature; Pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/06—Controlling, e.g. regulating, parameters of gas supply
    • F26B21/12—Velocity of flow; Quantity of flow, e.g. by varying fan speed, by modifying cross flow area
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/10—Biofuels, e.g. bio-diesel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel

Definitions

  • the invention relates to a drying device of the kind that is defined in the preamble of the appended claim 1.
  • Drying of particulate material is advantageously carried out in two stages, viz . a pre-drying stage and a drying final stage.
  • a hot gas such as a flue gas from a boiler/furnace
  • the flue gas and/or the evaporated moisture has a high energy content and has a temperature of up to 80 0 C, and may therefore be used to pre-dry the material before it is introduced into the final drying stage and there is brought to exchange heat with the flue gas. In this way, the total heat requirement is reduced.
  • the object of the invention is to provide an device for pre-drying of particulate material such as, for instance, sawdust, which operates efficiently and has a structure that is simple to build at low cost.
  • the object is attained by the invention.
  • the invention essentially means that the device contains a drying chamber in the form of a standing cylinder-like container, the bottom of which is formed to be gas permeable over substantially the entire area thereof and which has a particle dis- charge opening that leads to a particle discharge pipe.
  • a drying chamber in the form of a standing cylinder-like container, the bottom of which is formed to be gas permeable over substantially the entire area thereof and which has a particle dis- charge opening that leads to a particle discharge pipe.
  • moist particle material is fed into the upper part of the container.
  • hot dry pressurized air is fed, which passes upward through the bottom of the container and a particle divider accommodated in the container.
  • the escaping moist and cooled air may be taken care of in respect of possibly useful energy content (which, in practice, is very low, however) and/or for the separation of water and dust.
  • the fan that generates the pressurized air is suitably given operation conditions comprising a substantially constant positive pressure in relation to atmospheric pressure before the introduction into the container.
  • a fan of a relatively simple design and at a relatively low cost can be used.
  • Such a substantially constant pressure is attained by the fact that the container is provided with a stirrer that stirs the particle material in the particle material column, and by the fact that the particle supply into the container is regulated for maintaining a substantially constant pressure on the output side of the fan (the underside of the particle bed) .
  • the stirring may comprise a rotation shank coaxial with the container.
  • the shank is suitably provided with generally radial wings, which are distributed in the axial direction of the shank.
  • the wings may be in the form of laminae, which possibly are inclined to the plane of rotation.
  • the wings may be in the shape of V-sections, the concave side of which is trailing in the direction of motion of the wing.
  • the wings or arms may form a selectable angle with the direction of the shaft shank, and may accordingly be perpendicular to the shank or form another angle with the shank.
  • the arms/wings are preferably substantially interparallel and preferably also arranged approximately uniformly interspaced along the shank shaft.
  • the gas-permeable bottom of the container may be formed from a gas-permeable flexible sheet material.
  • the bottom may be composed of three or four wire-cloth pieces laid on each other.
  • the bottom of the container has suitably a central opening for withdrawing pre-dried material.
  • the discharge pipe which connects to this opening, may mouth in a pocket feeder that is operable at a constant rotational speed and has circumferen- tially uniformly interspaced pockets, so that an even flow of pre-dried particles, controllable by the rotational speed, can be discharged, for instance, to a conveyor, by which the particle flow is transported, for instance, to a closed drying stage for the material or to an intermediate storage.
  • An advantage of the invention is that the particle material is dried in a pure counterflow and that the particle bed becomes extensively homogeneous, so that the air flow is distributed uniformly across the entire cross section, and so that the air resistance through the bed becomes uniform across the cross section area of the container.
  • the escaping cooled flue gas of the final drying stage and the water vapour evaporated in the final stage have in connection with, for instance, sawdust drying, a temperature of approx . 80 0 C, and therefore the dry air utilized in the pre-drying apparatus can be heated to a corre ⁇ sponding temperature of +70-80 0 C.
  • the advantage is attained that cellulose material, for instance sawdust, is exposed to the maximal temperatures of the pre-drying air for a relatively short time, when the particle material approaches the bottom of the container.
  • This fact means that the main part of the particle material in the container is subjected to drying air of lower temperatures, so that the risk of evaporation of terpenes and the like substances from sawdust or the like becomes low.
  • the drying apparatus in which the pre-dried material is sub- jected to a second drying stage, may have a conventional structure, per se.
  • hot gas for instance, combustion gas
  • a drying device such as a shell chamber in a rotary tube drier having a substantially horizontal axis.
  • Sawdust initially having a moisture content of about 55 % can be dried to approx. 40 % in the pre-drier, and can then be dried to approx.
  • a salt filter may consist of a wet electrostatic precipitator or some other known device having the corresponding function.
  • Fig. 1 schematically shows a two-stage drying device.
  • Fig. 2 shows a preferred embodiment of a drying apparatus that can be used as a drying stage in the device according to Fig. 1.
  • a plant for drying sawdust is schematically shown, comprising a boiler 1, from which flue gas is discharged via a pipe 2 to and through a secondary drying device 3, from which escaping flue gas and evaporated vapour is directed via a pipe 4 to a condenser 5 and further to a salt filter 6 and finally to a chimney 7.
  • the condenser 5 is shown containing a heat exchanger 51 belonging to a circulation circuit 8, which also contains an addi- tional heat exchanger 52 and a heat exchanger 53, which allows the utilization of excess heat from the circuit.
  • the circuit 8 including the heat exchangers 51, 52, 53 suitably contains a liquid, such as water, as heat-transport fluid.
  • a hot-air flow is generated, which is utilized to pre-dry the material in question in a pre-drying apparatus 9, which material in the example may be assumed to be sawdust or the like.
  • a flow 10 of the material is first directed through the pre-drying apparatus and then through the final-drying apparatus 3.
  • a bypass 31 having a return fan 32 is arranged parallel to the secondary drying stage 3 for recirculation of the flue gas to the input side of the secon- dary drying assembly, when required.
  • Condensate formed in the condenser 5 may be drawn off in a con ⁇ ventional way at a low temperature to the surroundings, possibly after cleaning and heat recovery.
  • the pre-drying apparatus 9 comprises a cylindrical container 20 having a vertically oriented axis.
  • a filling compartment 21 connects to the upper portion of the container 20.
  • the bottom of the container is shown rotationally symmetrical in relation to the axis of the container and is formed from a gas-permeable structure, which offers gas throughput uniformly over substantially the entire area thereof.
  • the bottom 22 has openings that are smaller than the diameter of a material in particle form, for instance sawdust, which is received in the container 20.
  • the sawdust material is fed into the compartment 21 above the upper part of the container 20 via a conveyor worm 24, the conveyor worm having a gear with an appurtenant gear motor 25, which is adjustable in respect of the feeding flow, for instance by being speed adjustable .
  • a pipe 34 has one end thereof connected around the circumfer- ence of the bottom 22, and has the other end thereof connected to an outlet 35 from a fan 36.
  • the inlet 37 of the fan connects to an air-heating battery 38, which contains the heat exchanger 52 and is supplied with dry air.
  • the container 20 there is a vertical and coaxial shaft shank 60, which extends downward to the vicinity of the bottom 22.
  • the upper end of the shank 60 is, via a gearbox, connected to a rotary driving motor 62.
  • the shaft shank 60 carries generally radially projecting arms 63, which bring about a stirring of the particle mass received in the container 20 and extend from the bottom 22 up to an upper level 66 near the compartment 21, but below the discharge end of the worm conveyor 24.
  • a generally vertically oriented tube 70 connects with the upper end 71 thereof to a central portion of the bottom 22.
  • the pipe 70 has a much smaller diameter than the container 20 and extends into and through the bottom 22 in order to be able to discharge particles from the bottom area of the container 20.
  • a pocket feeder 75 arranged at the lower end of the pipe 70, which extends out through the wall of the air pipe 34.
  • the pocket feeder is of a conventional construction, per se, and rotates at a constant, selected rotational speed in order to offer discharge of a corresponding constant particle flow to a schematically illustrated conveyor 77, by which the pre-dried particle material (the sawdust) can be introduced into the secondary drying apparatus 3.
  • a pressure sensor 80 which is arranged to control the conveyor worm 24 in such a way that the pressure on the outside of the fan 36 is kept at a preselected positive pressure during operation.
  • the stirrer 60, 62, 63 homogenizes the particle mass in the container 20, thereby offering a vertically upwardly directed air flow, which experiences substantially the same flow resistance at all points in the area delimited by the bottom 22.
  • the possibility is offered of maintaining a set air- pressure on the output side 35 of the fan 36 by means of the pressure sensor 80 by the fact that the pressure sensor 80 is allowed to control the motor 25 of the worm 24, so that the height of the particle mass column in the container 20 decreases when the pressure detected by the sensor 80 increases, and vice versa.
  • a moist sawdust material which may have a moisture content of up to 55 %, wherein the moisture also may include ice and other surface moisture on the particles, can be dried in the pre-drying apparatus 9 to a moisture content of approx. 40 % before the pre-dried material 10 is directed into the final drier 3.
  • the material flow leaving the secondary drier 3 may have a moisture content of approx. 10 %, whereby the material/sawdust directly can be formed into fuel pellets.
  • the pre-drying stage 9 only the particle layer closest to the bottom 22 will be exposed to the maximal air temperature (70 0 C) during a very short period of time before the particle material is discharged.
  • the pre-drying air is cooled when it passes upward from the bottom 22.
  • no substantial evaporation of ter- penes and the like arises from a sawdust material, and there- fore the escaping air flowing out, for instance, via the compartment 21, does not necessarily need to be cleaned before it is released into the environment.
  • a practical design may consist of one or more layers of wire cloth of the type used in paper-making machines .
  • the container 20 may also, at a level above the normal level 66 of the material, for instance in the transition area between the container 20 and the compartment 21, have an annular gas-permeable ring disc 67, which also may be composed of one or more layers of wire cloth.
  • the opening of the ring disc 67 lets through material from the compartment, while the rest of the ring disc forms a barrier, which blocks the material treated by the stirrer 60, 63 from being thrown up in the compartment 21 and also contributes to a levelling of the top surface of the material column in the container 20.
  • the outlet of the conveyor 24 may mouth through the opening of the ring disc 67.
  • bottom plate 22 is annular in order to, in the centre opening thereof, let through dried material to the pipe 70.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

L'invention concerne un appareil de séchage d'un matériau en particules, par exemple de la sciure, qui comprend un récipient (20) traversé par le matériau, des moyens (24, 25, 70, 71) qui envoient le matériau dans le récipient (20) et des moyens (34 - 38) qui envoient de l'air chaud dans le récipient (20) pour sécher le matériau, un moyen (80) de détection du niveau de pression d'air dans un conduit (34) situé entre le ventilateur (36) et le récipient (20) et un moyen (81) qui régule la quantité de matériau présente dans le récipient (20), le moyen de détection (80) étant agencé de manière à commander le moyen de régulation (81) pour maintenir un niveau présélectionné de pression d'air du côté de la sortie du ventilateur (36).
PCT/SE2006/001267 2005-11-23 2006-11-08 Appareil de sechage de materiau en particules Ceased WO2007061352A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0502560A SE529334C2 (sv) 2005-11-23 2005-11-23 Torkningsapparat för partikelformigt material
SE0502560-6 2005-11-23

Publications (1)

Publication Number Publication Date
WO2007061352A1 true WO2007061352A1 (fr) 2007-05-31

Family

ID=38067473

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2006/001267 Ceased WO2007061352A1 (fr) 2005-11-23 2006-11-08 Appareil de sechage de materiau en particules

Country Status (2)

Country Link
SE (1) SE529334C2 (fr)
WO (1) WO2007061352A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103256788A (zh) * 2013-04-18 2013-08-21 黄山市白岳活性白土有限公司 一种活性白土烘干方法
WO2014026194A1 (fr) * 2012-08-10 2014-02-13 High Temperature Physics, Llc Système et procédé de fonctionnalisation de graphène
US8863402B2 (en) 2008-05-21 2014-10-21 Ccm-Power Oy Method for drying objects of organic material and a dryer
US9260308B2 (en) 2011-04-19 2016-02-16 Graphene Technologies, Inc. Nanomaterials and process for making the same
EP3012313A4 (fr) * 2013-06-19 2017-03-01 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Procédé de fabrication et dispositif de fabrication de combustible solide
WO2020032799A1 (fr) * 2018-08-10 2020-02-13 Fhp Beheer B.V Procédé et dispositif de séchage biologique
CN112240698A (zh) * 2020-07-31 2021-01-19 马鞍山科邦生态肥有限公司 一种微生物肥料生产用连续干燥装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5019994A (en) * 1989-05-31 1991-05-28 Universal Dynamics Corporation Method and apparatus for drying articles in a continuous feed process
DE10051526A1 (de) * 2000-10-17 2002-04-18 Azo Gmbh & Co Anlage zum Trocknen von rieselfähigem Schüttgut
US20050091872A1 (en) * 2003-11-04 2005-05-05 Gracff Roderich W. Method and apparatus for controlling gas flow through granulate in drying hoppers

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5019994A (en) * 1989-05-31 1991-05-28 Universal Dynamics Corporation Method and apparatus for drying articles in a continuous feed process
DE10051526A1 (de) * 2000-10-17 2002-04-18 Azo Gmbh & Co Anlage zum Trocknen von rieselfähigem Schüttgut
US20050091872A1 (en) * 2003-11-04 2005-05-05 Gracff Roderich W. Method and apparatus for controlling gas flow through granulate in drying hoppers

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8863402B2 (en) 2008-05-21 2014-10-21 Ccm-Power Oy Method for drying objects of organic material and a dryer
US9260308B2 (en) 2011-04-19 2016-02-16 Graphene Technologies, Inc. Nanomaterials and process for making the same
WO2014026194A1 (fr) * 2012-08-10 2014-02-13 High Temperature Physics, Llc Système et procédé de fonctionnalisation de graphène
CN103256788A (zh) * 2013-04-18 2013-08-21 黄山市白岳活性白土有限公司 一种活性白土烘干方法
EP3012313A4 (fr) * 2013-06-19 2017-03-01 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Procédé de fabrication et dispositif de fabrication de combustible solide
WO2020032799A1 (fr) * 2018-08-10 2020-02-13 Fhp Beheer B.V Procédé et dispositif de séchage biologique
CN112240698A (zh) * 2020-07-31 2021-01-19 马鞍山科邦生态肥有限公司 一种微生物肥料生产用连续干燥装置

Also Published As

Publication number Publication date
SE529334C2 (sv) 2007-07-10
SE0502560L (sv) 2007-05-24

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