WO2009043073A2 - Procédé et dispositif de séchage de produits en vrac - Google Patents

Procédé et dispositif de séchage de produits en vrac Download PDF

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Publication number
WO2009043073A2
WO2009043073A2 PCT/AT2008/000354 AT2008000354W WO2009043073A2 WO 2009043073 A2 WO2009043073 A2 WO 2009043073A2 AT 2008000354 W AT2008000354 W AT 2008000354W WO 2009043073 A2 WO2009043073 A2 WO 2009043073A2
Authority
WO
WIPO (PCT)
Prior art keywords
drying
adsorbent
air flow
cell
drum
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)
English (en)
Other versions
WO2009043073A3 (fr
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/fr
Publication of WO2009043073A3 publication Critical patent/WO2009043073A3/fr
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 for supplying or controlling air or other gases for drying solid materials or objects
    • F26B21/20—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
    • F26B21/25—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 for supplying or controlling air or other gases for drying solid materials or objects
    • F26B21/30—Controlling, e.g. regulating, parameters of gas supply
    • F26B21/33—Humidity
    • F26B21/331—Humidity by using sorbent or hygroscopic materials, e.g. chemical substances or molecular sieves

Definitions

  • the drying or dehumidifying phase for the exhaust air flow and the heating or cooling of the adsorbent run in parallel. This advantageously creates a continuous process that requires minimal energy and requires minimal space.
  • the invention is also based on the object to provide a device for carrying out the method described above, on the one hand to the state of Technique cited disadvantages avoids and on the other hand has a simple structural design effort.
  • connection cap is provided over the lid.
  • the adjacent wheel segments or a wheel segment with the lid or the bottom are axially mounted centrally via a tongue and groove connection.
  • Fig. 3 is an overall view of the means for performing the method partially in section.
  • the exhaust air stream 5 is fed via a filter 7 and a fan 8, provided in the drying cell 6, connected to the adsorbent or molecular sieve, feed channel, deflected in the drying cell 6 of the exhaust air stream 5 and the adsorbent or
  • the molecular sieve is guided and then redirected as dry air stream 3 again deflected in a discharge channel against the flow direction in the feed channel and fed to the drying silo 1.
  • the two-time deflection is illustrated by the arrow 9.
  • the adsorbent or the molecular sieve After regeneration, ie dehumidification, of the adsorbent or of the molecular sieve, the adsorbent or the molecular sieve is cooled in order to obtain the optimum operating temperature again.
  • a partial air stream 18 is branched off from the exhaust air stream 5 and fed to the adsorbent or the molecular sieve in the drying cell 6. This partial air flow 18 is deflected twice (arrow 19) and fed to the blower 8.
  • the drying cell 6 is divided into at least three circle segments, wherein the area of a circle segment for drying or dehumidifying the exhaust air stream 5, the area of the second circle segment for heating or regenerating the molecular sieve or adsorbent and the area of the third circle segment is used for cooling the molecular sieve or adsorbent.
  • the drying cell 6 designed as a wheel dryer is rotated stepwise or continuously so that the corresponding process step is carried out continuously in each area. It also follows that the
  • FIG. 2 a section through the drying cell 6 is shown in an isometric view, wherein the shaft (not shown) is provided in the center.
  • the drying cell 6 is designed as a drum, wherein radially at least three concentrically arranged, axially extending portions are provided.
  • the adsorbent or the molecular sieve is provided and the other two, outside and inside, areas 22 and 21 are formed as a feed channel for the exhaust air flow 5 and discharge channel for the dry air stream 3 ,
  • the channels are connected to the adsorbent-containing portion 20 for air passage.
  • Embodiment are provided circumferentially at least three, preferably six, - in the preferred case shown - 36, wheel sectors.
  • FIG. 3 an overall view of the device for carrying out the method is shown partly in section.
  • a plurality of wheel segments 25 are stacked on top of each other as a drying cell 6 in the form of a drum.
  • a bottom 27 and at the other end a cover 28 which is provided with the corresponding recesses for the air ducts is provided.
  • a stationary connection cap 29 is provided above the cover 28 .
  • the drum is designed as a rotating drum, wherein the connection cap 29 is stationary and between the connection cap 29 and the rotating drum, in particular the cover 28, a sealing surface is provided.
  • connection cap 29 is stationary and between the connection cap 29 and the rotating drum, in particular the cover 28, a sealing surface is provided.
  • connection cap 29 is at least one of the two surfaces to be sealed flat and between the surfaces at least one elastic compensation element 30 is arranged.

Landscapes

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

Abstract

L'invention concerne un procédé et un dispositif de séchage de produits en vrac dans un silo de séchage (1) au moyen d'un écoulement d'air. L'écoulement d'air évacué (5) qui sort du silo de séchage (1) ou l'air de renvoi sont séchés dans une cellule de séchage (6) qui contient un moyen de séchage ou d'adsorption et sont renvoyés dans le produit en vrac sous la forme d'un écoulement d'air sec (3). Eventuellement, le moyen d'adsorption est régénéré dans la cellule de séchage (6). L'écoulement d'air évacué (5) est apporté dans un canal d'amenée prévu dans la cellule de séchage (6) et relié au moyen d'adsorption, est dévié dans la cellule de séchage (6), est passé à travers le moyen d'adsorption et est ensuite renvoyé encore une fois comme écoulement d'air sec (3) pour être évacué dans un canal d'évacuation dans la direction opposée à la direction d'écoulement dans le canal d'amenée et être amené au silo de séchage (1). La cellule de séchage (6) configurée comme séchoir à roue est mise en rotation pas-à-pas pas ou continue. La cellule de séchage (6) est configurée comme tambour doté d'au moins trois parties (20, 21, 22) qui s'étendent axialement et disposées concentriquement, le moyen d'adsorption étant prévu dans la partie centrale (20) et les deux autres parties (21, 22) situées l'une à l'extérieur et l'autre à l'intérieur sont configurés comme canaux respectivement pour l'écoulement d'air d'évacuation (5) et pour l'écoulement d'air sec (3). Les canaux sont reliés à la partie (20) qui contient le moyen d'adsorption de manière à permettre le passage de l'air.
PCT/AT2008/000354 2007-10-02 2008-10-02 Procédé et dispositif de séchage de produits en vrac Ceased WO2009043073A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA1554/2007 2007-10-02
AT0155407A AT505391B1 (de) 2007-10-02 2007-10-02 Verfahren und einrichtung zum trocknen von schüttgut

Publications (2)

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

Family

ID=40240444

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT2008/000354 Ceased WO2009043073A2 (fr) 2007-10-02 2008-10-02 Procédé et dispositif de séchage de produits en vrac

Country Status (3)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8866674B2 (en) 2009-10-16 2014-10-21 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Concept of generating experience messages for updating a reference database
US20160033201A1 (en) * 2013-04-04 2016-02-04 Wittmann Kunststoffgeraete Gmbh Method for drying bulk material

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT509475B1 (de) * 2010-03-03 2012-01-15 Wittmann Kunststoffgeraete Verfahren zum trocknen von schüttgut
AT508754B1 (de) * 2010-03-03 2011-04-15 Wittmann Kunststoffgeraete Einrichtung zum trocknen von schüttgut
DE102010043087A1 (de) 2010-10-28 2012-05-03 Dürr Systems GmbH Prozesskammer mit Vorrichtung zum Einblasen von gasförmigen Fluid
US12339063B2 (en) 2019-06-12 2025-06-24 Wittmann Technology Gmbh Method for drying bulk materials, in particular solids, such as granulates, powders, grains, foils, shavings or the like, preferably plastic granulate
CN111482063B (zh) * 2020-04-22 2022-03-08 杭州腾睿源人防工程有限公司 一种过滤吸收器
CN116853691B (zh) * 2023-06-09 2025-12-16 山东璟泰环保节能设备有限公司 干法脱硝设备料仓总成

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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
JPS60178009A (ja) * 1984-02-25 1985-09-12 Color Toronitsuku Kk 合成樹脂乾燥用の高温除湿空気発生方法およびその装置
DE3625013C2 (de) * 1986-07-24 1995-05-24 Somos Gmbh Verfahren und Vorrichtung zum Trocknen von Schüttgut vorzugsweise aus Kunststoffgranulat
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
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
DE4437494A1 (de) * 1994-10-20 1996-04-25 Graeff Roderich Wilhelm Verfahren und Vorrichtung zum Trocknen feuchten Gases
DE19757537A1 (de) * 1997-12-23 1999-07-08 Wittmann Kunststoffgeraete Gmb Verfahren und Vorrichtung zum Trocknen und Erhitzen von Luft zum Trocknen von Feststoffen
ITVR20030053A1 (it) * 2003-05-05 2004-11-06 Moretto Plastics Automation S R L Apparecchiatura ed impianto di deumidificazione a setacci molecolari
ITVR20060030A1 (it) * 2006-02-10 2007-08-11 Moretto Spa Impianto e procedimento di deumidificazione a funzionamento flessibile particolarmente per materiali granulari.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8866674B2 (en) 2009-10-16 2014-10-21 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Concept of generating experience messages for updating a reference database
US20160033201A1 (en) * 2013-04-04 2016-02-04 Wittmann Kunststoffgeraete Gmbh Method for drying bulk material

Also Published As

Publication number Publication date
AT505391A4 (de) 2009-01-15
WO2009043073A3 (fr) 2009-08-13
TW200916713A (en) 2009-04-16
AT505391B1 (de) 2009-01-15

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