WO2001012287A2 - Apparatus for removing a fluid component from particulized solid materials - Google Patents
Apparatus for removing a fluid component from particulized solid materials Download PDFInfo
- Publication number
- WO2001012287A2 WO2001012287A2 PCT/EP2000/006593 EP0006593W WO0112287A2 WO 2001012287 A2 WO2001012287 A2 WO 2001012287A2 EP 0006593 W EP0006593 W EP 0006593W WO 0112287 A2 WO0112287 A2 WO 0112287A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- gas
- chamber
- particulized
- reactor
- solid
- Prior art date
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
- F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
- F26B17/10—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by fluid currents, e.g. issuing from a nozzle, e.g. pneumatic, flash, vortex or entrainment dryers
- F26B17/107—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by fluid currents, e.g. issuing from a nozzle, e.g. pneumatic, flash, vortex or entrainment dryers pneumatically inducing within the drying enclosure a curved flow path, e.g. circular, spiral, helical; Cyclone or Vortex dryers
-
- 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
- F26B3/092—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 agitating the fluidised bed, e.g. by vibrating or pulsating
- F26B3/0926—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 agitating the fluidised bed, e.g. by vibrating or pulsating by pneumatic means, e.g. spouted beds
Definitions
- the invention concerns apparatus for the removal of a fluid component, in particular of moisture from particulized solid materials, in particular from solid particulized food materials.
- the invention further concerns a process for the removal of these fluids from those materials, in particular by using the apparatus according to the invention.
- This apparatus however is not useful for removing moisture from particulized solid food materials because these materials can be damaged easily during the treatment leading to the appearance of black spots due to overburning. Moreover this apparatus cannot be used in a semi-continuous process as no provisions are given for the removal of the treated material. Also the heating of the gas is not efficient as no indications are given how the fluidizing gases are heated and/or how the rest heat present in the exhaust gases can be applied in the process. Further the introduction of the fluidizing gases via the bottom of the sieve plate is not very efficient because these gases do not have a clear axial and tangential component. Herefore the openings in the sieve plate have to have a very specific shape.
- an apparatus for the coating of detergent particles is provided with a perforated plate through which fluidizing gas is introduced sothat a fluidizable substance is coated in a fluidized bed.
- fluidizing gas is introduced sothat a fluidizable substance is coated in a fluidized bed.
- air is introduced that provides a tangential component to the particles it is not clear whether this air is introduced above or below the perforated plate.
- our invention concerns m the first instance a novel apparatus for the removal of a fluid component from particulized solid materials
- a housing (1) a perforated plate (2) separating the housing (1) into two chambers (3) and (4), chamber (3) being a gas introduction chamber and chamber (4) being a reaction/drying chamber, whereby: - chamber (3) is provided with two separated gas inlets (5) and (6) gas inlet (5) being present m the bottom (7) of chamber (3) and providing an axial direction to the gas and - gas inlet (6) being present below the plate (2) and providing a tangential direction component to the gas the perforated plate (2) is provided with an outlet opening (8), provided with a removable plug (9) for opening and closing of outlet opening (8) - means (10) for feeding the solid particulized material into chamber (4) a gas outlet system (17) for the removal of the gases from chamber (4)
- plate (2) has a shape of a cone or a wok, while at the lowest point of the cone or wok outlet opening (8) is present.
- gas inlet (6) is present at a point above 0.4h, preferably at a point above 0.5h from the bottom of housing (1), h being the height of chamber (3).
- the heat sensor (s) produce a signal that is applied to control the temperature of the gas streams in inlets (5) and (6) through regulating means (14) for regulating the heating of these gas streams.
- a device that can be used to obtain an efficient heat transfer in the fluidized bed is a pulsator, preferably placed in the gas stream introduced via inlet (6).
- the velocity of this gas stream can be pulsated, resulting in a fluidized bed wherein the distance between the individual particles can be changed during the processing.
- This pulsating preferably is performed with an amplitude between 0.25 and 10 Hertz.
- the invention also concerns a process for the removal of a fluid component from particulized solid material in a reactor, wherein the solid particulized material is fluidized by a preheated gas providing to the solid particles an axial velocity component and a preheated gas providing to the solid particles a tangential velocity component in such a way that during the heat treatment the solid particles form a fluidized, annular bed of particles, at a temperature and for a time sufficient to remove the fluid component without overburning of the solid particulized material, whereupon the treated solid particulized material is separated from the reactor as end product, while thereafter fresh solid particulized material, from which the fluid component still must be removed, is introduced in the reactor.
- Gas velocities that can be applied for the fluidizing gas can range from more than 0.5 m/sec, preferably more than 1.5 m/sec to less than 50 m/sec, preferably less than 10 m/sec.
- the gases should be introduced in the reactor with such a velocity that the solid particulized material that is introduced above the perforated plate remains above the perforated plate in the form of an annular fluidized bed of solid particles.
- the temperature that can be applied in the reaction chamber (4) should be controlled carefully within a specific range, this can be achieved by introducing the gases into the reactor directly under the perforated plate (2) with a temperature within the range of 180 - 350 oC, preferably 200 - 300 oC.
- the most efficient energy consumption is achieved if the temperature of the gases that are introduced in the reactor is controlled by a the signal from a temperature sensor in the introduction chamber of the reactor which signal is fed to an indirect heat exchanger wherein fresh introduction gas is in indirect heat exchange with gas removed from the reactor. If a signal from a second heat sensor, but now present in the reaction chamber is used as well for this control an even more efficient temperature control is possible .
- the residence time of the particulized material in the reactor can range effectively between 15 and 90 sec, preferably between 20 and 60 sec.
- the gas stream can be selected from all inert, food grade gases but we prefer to apply air or nitrogen as gas herefore.
- the heat sensors produce a signal which is fed to heat regulating means (14) connected with heater (18) and valve (16) therein.
- heat regulating means (14) connected with heater (18) and valve (16) therein.
- an opening (8) is present in the plate (2), which opening (8) is provided with a plug (9) corresponding in shape and size with opening (8) and which plug is closing opening (8) during the drying process but can be lifted using a plunger (19) after interrupting the gas supply to the system.
- the dried product is removed via a duct which is connected with a separator (20) wherein the product is cooled and separated from excess gas.
- the exhaust gases leaving the system via outlet (17) are led to a separator (24), preferably being a cyclone, wherein the dust and the gas are separated, whereupon the gases are led to heat exchanger (15) to which also fresh gas is led via inlet
- a fan (21) is used for the transport of the gas.
- Valve (16) is used for the division of the gas from fan
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
- Lubricants (AREA)
- General Preparation And Processing Of Foods (AREA)
- Separation Of Gases By Adsorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT00954476T ATE286589T1 (en) | 1999-08-17 | 2000-07-11 | DEVICE FOR REMOVING A LIQUID COMPONENT FROM FINE GRAIN SOLID SUBSTANCES |
AU66921/00A AU6692100A (en) | 1999-08-17 | 2000-07-11 | Apparatus for removing a fluid component from particulized solid materials |
US10/049,657 US6631567B1 (en) | 1999-08-17 | 2000-07-11 | Apparatus for removing a fluid component from particulized solid materials |
EP00954476A EP1204836B1 (en) | 1999-08-17 | 2000-07-11 | Apparatus for removing a fluid component from particulized solid materials |
DE60017267T DE60017267T2 (en) | 1999-08-17 | 2000-07-11 | DEVICE FOR REMOVING A LIQUID CONTAINER FROM FINE-GRANULAR FABRICS |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99202665 | 1999-08-17 | ||
EP99202665.8 | 1999-08-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2001012287A2 true WO2001012287A2 (en) | 2001-02-22 |
WO2001012287A3 WO2001012287A3 (en) | 2001-08-30 |
Family
ID=8240545
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2000/006593 WO2001012287A2 (en) | 1999-08-17 | 2000-07-11 | Apparatus for removing a fluid component from particulized solid materials |
Country Status (9)
Country | Link |
---|---|
US (1) | US6631567B1 (en) |
EP (1) | EP1204836B1 (en) |
CN (1) | CN1138118C (en) |
AT (1) | ATE286589T1 (en) |
AU (1) | AU6692100A (en) |
DE (1) | DE60017267T2 (en) |
ES (1) | ES2234649T3 (en) |
WO (1) | WO2001012287A2 (en) |
ZA (1) | ZA200200354B (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003048664A1 (en) * | 2001-12-04 | 2003-06-12 | Powder Conditioning Limited | Methods and apparatus for conditioning powders |
US6645545B1 (en) | 1999-11-12 | 2003-11-11 | Lipton, Division Of Conopco, Inc. | Heat treated cereals and process of making |
WO2003103407A1 (en) * | 2002-06-10 | 2003-12-18 | Firma Produkcyjno-Handlowa Paula Sp. Zo.O | Method to dry dielectric materials and an equipment to dry dielectric materials |
WO2005017431A1 (en) * | 2003-08-19 | 2005-02-24 | Bühler AG | Method and device for the continuous drying of rice |
EP1668993A1 (en) * | 2004-12-10 | 2006-06-14 | Unilever N.V. | Quick cooking and instant rice and process to make the same |
WO2007065279A1 (en) * | 2005-12-09 | 2007-06-14 | Bühler AG | Process and unit for continuous drying of rice |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006008100B8 (en) * | 2006-02-20 | 2009-02-12 | Ijzerlo Holding B.V. | Process for drying goods in a fluidized bed dryer and fluidized bed dryer |
US8171772B2 (en) * | 2007-10-23 | 2012-05-08 | Dean John Richards | Gas analyzer |
CN101825390B (en) * | 2010-04-27 | 2011-11-09 | 莱芜钢铁集团有限公司 | Double-layered vibrating fluidized-bed drying-classification apparatus |
CN104097868A (en) * | 2014-07-09 | 2014-10-15 | 莱芜钢铁集团有限公司 | Vibrated fluidized bed |
CN106052306A (en) * | 2016-06-27 | 2016-10-26 | 安庆市微知著电器有限公司 | Dryer with temperature monitoring function |
CN114111224B (en) * | 2021-11-24 | 2022-11-29 | 浙江迦南科技股份有限公司 | Recovery device capable of recovering redundant heat generated by fluidized bed |
Citations (13)
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US2634511A (en) * | 1950-07-21 | 1953-04-14 | Wilford H Underwood | Rice drier |
FR1401570A (en) * | 1964-06-04 | 1965-06-04 | Schuechtermann & Kremer | Process for heat exchange, in particular for drying solids in free suspension in a gas stream or for drying in suspension and device for carrying out this process |
US3386182A (en) * | 1965-09-18 | 1968-06-04 | Bayer Ag | Method of and apparatus for the mixing, drying or moistening by pneumatic means of material in powder form |
US3544089A (en) * | 1967-07-12 | 1970-12-01 | Pierre Ledent | Pneumatic elevators for lifting granular solids |
FR2171667A5 (en) * | 1972-02-04 | 1973-09-21 | Mark Andre | |
DE2315879A1 (en) * | 1972-04-09 | 1973-10-25 | Droogtech | Granular material drier - with supplementary hot gas feeds to prevent caking on walls |
US3908045A (en) * | 1973-12-07 | 1975-09-23 | Lever Brothers Ltd | Encapsulation process for particles |
DE2555917A1 (en) * | 1975-04-23 | 1976-11-04 | Thaelmann Schwermaschbau Veb | Fluid bed dryer for proteins - incorporating spray for aqueous feed with differential air velocity across bed |
US4023280A (en) * | 1976-05-12 | 1977-05-17 | Institute Of Gas Technology | Valve for ash agglomeration device |
DE2912579A1 (en) * | 1978-06-16 | 1980-01-03 | Thaelmann Schwermaschbau Veb | Fluidised bed dryer control - with pressure drop sensors across bed adjusting gas feed valves and nuclei feeder motor |
US4640023A (en) * | 1985-07-05 | 1987-02-03 | Director General Of Agency Of Industrial Science And Technology | Apparatus for manufacturing powdered silicon nitride |
US5647142A (en) * | 1996-05-13 | 1997-07-15 | Niro A/S | Apparatus and process for drying a moist material dispersed or dispersible in a stream of drying gas |
GB2324744A (en) * | 1997-04-29 | 1998-11-04 | Canada Majesty In Right Of | Pulsed fluidised bed |
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US4532155A (en) | 1983-08-08 | 1985-07-30 | G. D. Searle & Co. | Apparatus and process for coating, granulating and/or drying particles |
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FR2581564B1 (en) * | 1985-05-13 | 1993-05-07 | Bp Chimie Sa | FLUIDIZED BED APPARATUS HAVING A MULTI-SLOPE FLUIDIZING GRID |
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US6098905A (en) | 1998-08-11 | 2000-08-08 | Conagra, Inc. | Method for producing an atta flour |
-
2000
- 2000-07-11 EP EP00954476A patent/EP1204836B1/en not_active Expired - Lifetime
- 2000-07-11 CN CNB008118256A patent/CN1138118C/en not_active Expired - Fee Related
- 2000-07-11 WO PCT/EP2000/006593 patent/WO2001012287A2/en active IP Right Grant
- 2000-07-11 US US10/049,657 patent/US6631567B1/en not_active Expired - Fee Related
- 2000-07-11 ES ES00954476T patent/ES2234649T3/en not_active Expired - Lifetime
- 2000-07-11 AU AU66921/00A patent/AU6692100A/en not_active Abandoned
- 2000-07-11 AT AT00954476T patent/ATE286589T1/en not_active IP Right Cessation
- 2000-07-11 DE DE60017267T patent/DE60017267T2/en not_active Expired - Fee Related
-
2002
- 2002-01-15 ZA ZA200200354A patent/ZA200200354B/en unknown
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2634511A (en) * | 1950-07-21 | 1953-04-14 | Wilford H Underwood | Rice drier |
FR1401570A (en) * | 1964-06-04 | 1965-06-04 | Schuechtermann & Kremer | Process for heat exchange, in particular for drying solids in free suspension in a gas stream or for drying in suspension and device for carrying out this process |
US3386182A (en) * | 1965-09-18 | 1968-06-04 | Bayer Ag | Method of and apparatus for the mixing, drying or moistening by pneumatic means of material in powder form |
US3544089A (en) * | 1967-07-12 | 1970-12-01 | Pierre Ledent | Pneumatic elevators for lifting granular solids |
FR2171667A5 (en) * | 1972-02-04 | 1973-09-21 | Mark Andre | |
DE2315879A1 (en) * | 1972-04-09 | 1973-10-25 | Droogtech | Granular material drier - with supplementary hot gas feeds to prevent caking on walls |
US3908045A (en) * | 1973-12-07 | 1975-09-23 | Lever Brothers Ltd | Encapsulation process for particles |
DE2555917A1 (en) * | 1975-04-23 | 1976-11-04 | Thaelmann Schwermaschbau Veb | Fluid bed dryer for proteins - incorporating spray for aqueous feed with differential air velocity across bed |
US4023280A (en) * | 1976-05-12 | 1977-05-17 | Institute Of Gas Technology | Valve for ash agglomeration device |
DE2912579A1 (en) * | 1978-06-16 | 1980-01-03 | Thaelmann Schwermaschbau Veb | Fluidised bed dryer control - with pressure drop sensors across bed adjusting gas feed valves and nuclei feeder motor |
US4640023A (en) * | 1985-07-05 | 1987-02-03 | Director General Of Agency Of Industrial Science And Technology | Apparatus for manufacturing powdered silicon nitride |
US5647142A (en) * | 1996-05-13 | 1997-07-15 | Niro A/S | Apparatus and process for drying a moist material dispersed or dispersible in a stream of drying gas |
GB2324744A (en) * | 1997-04-29 | 1998-11-04 | Canada Majesty In Right Of | Pulsed fluidised bed |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6645545B1 (en) | 1999-11-12 | 2003-11-11 | Lipton, Division Of Conopco, Inc. | Heat treated cereals and process of making |
WO2003048664A1 (en) * | 2001-12-04 | 2003-06-12 | Powder Conditioning Limited | Methods and apparatus for conditioning powders |
WO2003103407A1 (en) * | 2002-06-10 | 2003-12-18 | Firma Produkcyjno-Handlowa Paula Sp. Zo.O | Method to dry dielectric materials and an equipment to dry dielectric materials |
WO2005017431A1 (en) * | 2003-08-19 | 2005-02-24 | Bühler AG | Method and device for the continuous drying of rice |
EP1668993A1 (en) * | 2004-12-10 | 2006-06-14 | Unilever N.V. | Quick cooking and instant rice and process to make the same |
WO2007065279A1 (en) * | 2005-12-09 | 2007-06-14 | Bühler AG | Process and unit for continuous drying of rice |
Also Published As
Publication number | Publication date |
---|---|
CN1370265A (en) | 2002-09-18 |
CN1138118C (en) | 2004-02-11 |
EP1204836B1 (en) | 2005-01-05 |
ZA200200354B (en) | 2003-04-30 |
ES2234649T3 (en) | 2005-07-01 |
US6631567B1 (en) | 2003-10-14 |
DE60017267T2 (en) | 2005-06-02 |
WO2001012287A3 (en) | 2001-08-30 |
AU6692100A (en) | 2001-03-13 |
DE60017267D1 (en) | 2005-02-10 |
ATE286589T1 (en) | 2005-01-15 |
EP1204836A2 (en) | 2002-05-15 |
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