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WO2009043073A3 - Method and apparatus for drying pourable material - Google Patents

Method and apparatus for drying pourable material Download PDF

Info

Publication number
WO2009043073A3
WO2009043073A3 PCT/AT2008/000354 AT2008000354W WO2009043073A3 WO 2009043073 A3 WO2009043073 A3 WO 2009043073A3 AT 2008000354 W AT2008000354 W AT 2008000354W WO 2009043073 A3 WO2009043073 A3 WO 2009043073A3
Authority
WO
WIPO (PCT)
Prior art keywords
drying
air flow
adsorbent
cell
fed
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/AT2008/000354
Other languages
German (de)
French (fr)
Other versions
WO2009043073A2 (en
Inventor
Werner Wittmann
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.)
Wittmann Kunststoffgeraete GmbH
Original Assignee
Wittmann Kunststoffgeraete 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 Wittmann Kunststoffgeraete GmbH filed Critical Wittmann Kunststoffgeraete GmbH
Publication of WO2009043073A2 publication Critical patent/WO2009043073A2/en
Publication of WO2009043073A3 publication Critical patent/WO2009043073A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/26—Drying gases or vapours
    • B01D53/261—Drying gases or vapours by adsorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B01D53/0407—Constructional details of adsorbing systems
    • B01D53/0431—Beds with radial gas flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/06—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds
    • 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
    • F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
    • F26B21/04—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure partly outside the drying enclosure
    • 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
    • F26B21/08—Humidity
    • F26B21/083—Humidity by using sorbent or hygroscopic materials, e.g. chemical substances, molecular sieves

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)
  • Drying Of Gases (AREA)

Abstract

The invention relates to a method and an apparatus for drying pourable material in a drying silo (1) by means of an air flow. The used air flow (5) that is discharged from the drying silo (1) or the returning air is dried in a drying cell (6) containing a drying agent or adsorbent and is fed to the pourable material as a dry air flow (3). If necessary, the adsorbent is regenerated in the drying cell (6). The used air flow (5) is fed to a supply duct that is disposed in the drying cell (6) and is connected to the adsorbent, is deflected in the drying cell (6), is conducted across the adsorbent, is then deflected once again as a dry air flow (3), is withdrawn in a discharge duct against the direction of flow in the supply duct, and is fed to the drying silo (1). The drying cell (6) that is designed as a wheel-type drier is rotated in stages or continuously. The drying cell (6) is designed as a drum comprising at least three concentric, axially extending zones (20, 21, 22). The adsorbent is located in the central zone (20), while the two other, external and internal zones (21, 22) are designed as ducts for the used air flow (5) or the dry air flow (3). The ducts are connected to the zone (20) containing the adsorbent in order to allow air to penetrate therebetween.
PCT/AT2008/000354 2007-10-02 2008-10-02 Method and apparatus for drying pourable material Ceased WO2009043073A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT15542007A AT505391B1 (en) 2007-10-02 2007-10-02 METHOD AND DEVICE FOR DRYING BULK GOODS
ATA1554/2007 2007-10-02

Publications (2)

Publication Number Publication Date
WO2009043073A2 WO2009043073A2 (en) 2009-04-09
WO2009043073A3 true WO2009043073A3 (en) 2009-08-13

Family

ID=40240444

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT2008/000354 Ceased WO2009043073A2 (en) 2007-10-02 2008-10-02 Method and apparatus for drying pourable material

Country Status (3)

Country Link
AT (1) AT505391B1 (en)
TW (1) TW200916713A (en)
WO (1) WO2009043073A2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009049672A1 (en) 2009-10-16 2011-04-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Concept for generating experiences to update a reference database
AT508754B1 (en) * 2010-03-03 2011-04-15 Wittmann Kunststoffgeraete DEVICE FOR DRYING BULK GOODS
AT509475B1 (en) 2010-03-03 2012-01-15 Wittmann Kunststoffgeraete METHOD FOR DRYING BULK GOODS
DE102010043087A1 (en) 2010-10-28 2012-05-03 Dürr Systems GmbH Process chamber with device for injecting gaseous fluid
AT514153A1 (en) * 2013-04-04 2014-10-15 Wittmann Kunststoffgeräte Gmbh Method for drying bulk material
WO2020247992A1 (en) 2019-06-12 2020-12-17 Wittmann Kunststoffgeräte Gmbh Method for drying bulk materials, in particular solids, such as granulates, powders, grains, foils, shavings or the like, preferably plastic granulate
CN111482063B (en) * 2020-04-22 2022-03-08 杭州腾睿源人防工程有限公司 Filtering absorber

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2507607A (en) * 1946-03-18 1950-05-16 Ernest B Miller Apparatus for conditioning air
US4176523A (en) * 1978-02-17 1979-12-04 The Garrett Corporation Adsorption air conditioner
EP0162537A2 (en) * 1984-02-25 1985-11-27 Colortronic Co., Ltd. Method and apparatus for demoisturizing and heating drying air for drying synthetic plastic material
US4589892A (en) * 1983-04-07 1986-05-20 Bry-Air, Inc. Sequenced modular bed carousel dehumidifier
US4805317A (en) * 1987-11-13 1989-02-21 Airflow Company Microwave regeneration of adsorbent materials for reuse as drying agents
US5017202A (en) * 1989-04-13 1991-05-21 Taikisha Ltd. Gas treating apparatus
EP0712656A1 (en) * 1994-10-20 1996-05-22 Roderich W. Dr. Graeff Process and apparatus for drying wet gases
EP1475593A2 (en) * 2003-05-05 2004-11-10 Moretto Plastics Automation Srl Molecular filter dehumidification apparatus and plant
EP1818637A2 (en) * 2006-02-10 2007-08-15 Moretto S.p.A. Dehumidification method and plant, particularly for granular materials

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3625013C2 (en) * 1986-07-24 1995-05-24 Somos Gmbh Method and device for drying bulk goods, preferably made of plastic granules
US4974337A (en) * 1989-10-30 1990-12-04 The Conair Group, Inc. Apparatus and method of drying and dehumidifying plastic
US5335426A (en) * 1992-09-22 1994-08-09 Foothills Medical Equipment, Inc. Method and apparatus for thermal regeneration of molecular sieve material used in oxygen concentrators
DE19757537A1 (en) * 1997-12-23 1999-07-08 Wittmann Kunststoffgeraete Gmb Method and device for drying and heating air for drying solids

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2507607A (en) * 1946-03-18 1950-05-16 Ernest B Miller Apparatus for conditioning air
US4176523A (en) * 1978-02-17 1979-12-04 The Garrett Corporation Adsorption air conditioner
US4589892A (en) * 1983-04-07 1986-05-20 Bry-Air, Inc. Sequenced modular bed carousel dehumidifier
EP0162537A2 (en) * 1984-02-25 1985-11-27 Colortronic Co., Ltd. Method and apparatus for demoisturizing and heating drying air for drying synthetic plastic material
US4805317A (en) * 1987-11-13 1989-02-21 Airflow Company Microwave regeneration of adsorbent materials for reuse as drying agents
US5017202A (en) * 1989-04-13 1991-05-21 Taikisha Ltd. Gas treating apparatus
EP0712656A1 (en) * 1994-10-20 1996-05-22 Roderich W. Dr. Graeff Process and apparatus for drying wet gases
EP1475593A2 (en) * 2003-05-05 2004-11-10 Moretto Plastics Automation Srl Molecular filter dehumidification apparatus and plant
EP1818637A2 (en) * 2006-02-10 2007-08-15 Moretto S.p.A. Dehumidification method and plant, particularly for granular materials

Also Published As

Publication number Publication date
WO2009043073A2 (en) 2009-04-09
TW200916713A (en) 2009-04-16
AT505391A4 (en) 2009-01-15
AT505391B1 (en) 2009-01-15

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