WO2007116022A3 - Device as well as apparatus and method for the treatment of materials at elevated temperature and under movement and under vacuum - Google Patents

Device as well as apparatus and method for the treatment of materials at elevated temperature and under movement and under vacuum Download PDF

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Publication number
WO2007116022A3
WO2007116022A3 PCT/EP2007/053385 EP2007053385W WO2007116022A3 WO 2007116022 A3 WO2007116022 A3 WO 2007116022A3 EP 2007053385 W EP2007053385 W EP 2007053385W WO 2007116022 A3 WO2007116022 A3 WO 2007116022A3
Authority
WO
WIPO (PCT)
Prior art keywords
vacuum dryer
vacuum
plastic material
tight
gas
Prior art date
Application number
PCT/EP2007/053385
Other languages
French (fr)
Other versions
WO2007116022A2 (en
Inventor
Ruediger Fredl
Hans Schnell
Original Assignee
Ohl Engineering Gmbh Pet Recyc
Ruediger Fredl
Hans Schnell
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
Priority claimed from DE200610016534 external-priority patent/DE102006016534A1/en
Application filed by Ohl Engineering Gmbh Pet Recyc, Ruediger Fredl, Hans Schnell filed Critical Ohl Engineering Gmbh Pet Recyc
Priority to EP07727853A priority Critical patent/EP2004376A2/en
Publication of WO2007116022A2 publication Critical patent/WO2007116022A2/en
Publication of WO2007116022A3 publication Critical patent/WO2007116022A3/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B13/00—Conditioning or physical treatment of the material to be shaped
    • B29B13/06—Conditioning or physical treatment of the material to be shaped by drying
    • B29B13/065—Conditioning or physical treatment of the material to be shaped by drying of powder or pellets
    • 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
    • F26B11/02—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles
    • F26B11/04—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis
    • F26B11/049—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis with provisions for working under increased or reduced pressure, with or without heating
    • 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
    • F26B21/14—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects using gases or vapours other than air or steam, e.g. inert gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B5/00—Drying solid materials or objects by processes not involving the application of heat
    • F26B5/04—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
    • F26B5/042—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum for drying articles or discrete batches of material in a continuous or semi-continuous operation, e.g. with locks or other air tight arrangements for charging/discharging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/26—Scrap or recycled material

Abstract

The present invention concerns a method and an apparatus for drying and/or thermal treatment of granular or particulate plastic material with a vacuum dryer (1) and a corresponding vacuum dryer with a gas-tight sealable chamber (41) for the plastic material and a rotary axis (2) for rotating or swivelling the chamber, in which the jacket of the chamber is formed as one wall. The apparatus is characterised by the fact that a heating and/or a cooling vessel (10, 11) are arranged upstream and/or downstream of the vacuum dryer (1), such that, in the method, in a first step, pre-heated plastic material is charged in the absence of air into a vacuum-tight or gas-tight sealable chamber of the vacuum dryer, or non-pre- heated plastic material is charged into a vacuum-tight or gas-tight sealable chamber of the vacuum dryer and, after evacuation of the vacuum dryer, is heated by in-feeding and/or through-feeding of an inert hot gas and then can be through- mixed in a second step by movement of the vacuum dryer (1).
PCT/EP2007/053385 2006-04-07 2007-04-05 Device as well as apparatus and method for the treatment of materials at elevated temperature and under movement and under vacuum WO2007116022A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07727853A EP2004376A2 (en) 2006-04-07 2007-04-05 Device as well as apparatus and method for the treatment of materials at elevated temperature and under movement and under vacuum

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US79005606P 2006-04-07 2006-04-07
DE102006016534.9 2006-04-07
US60/790,056 2006-04-07
DE200610016534 DE102006016534A1 (en) 2006-04-07 2006-04-07 Device for drying and thermal treatment of granular material e.g. plastic used in recycling of polyethylene terephthalate, has gas-tight sealable chamber whose external jacket is formed as wall

Publications (2)

Publication Number Publication Date
WO2007116022A2 WO2007116022A2 (en) 2007-10-18
WO2007116022A3 true WO2007116022A3 (en) 2008-01-03

Family

ID=38326943

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/053385 WO2007116022A2 (en) 2006-04-07 2007-04-05 Device as well as apparatus and method for the treatment of materials at elevated temperature and under movement and under vacuum

Country Status (2)

Country Link
EP (1) EP2004376A2 (en)
WO (1) WO2007116022A2 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10539366B2 (en) * 2014-04-30 2020-01-21 Stephen B. Maguire Method and apparatus for vacuum drying granular resin material
DE102010042965A1 (en) * 2010-10-26 2012-05-10 Krones Aktiengesellschaft Method for producing plastic containers and / or plastic preforms
PL2463338T3 (en) 2010-12-13 2014-01-31 Lanxess Deutschland Gmbh Process for the optimization of crystallisation behaviour of polyester moulding materials
ITPD20130255A1 (en) * 2013-09-19 2015-03-20 Christian Schiavolin METHOD AND TREATMENT SYSTEM FOR SLIDING MATERIAL
EP3290475A1 (en) 2016-09-01 2018-03-07 LANXESS Deutschland GmbH Thermoplastic moulding materials
EP3290469A1 (en) 2016-09-01 2018-03-07 LANXESS Deutschland GmbH Thermoplastic moulding materials
IT201700043004A1 (en) 2017-04-19 2018-10-19 Plastic Systems S P A Drying process of polymeric granular material and plant operating according to this process
US20190308344A1 (en) 2018-04-04 2019-10-10 Novatec, Inc. Method and apparatus for polymer drying using inert gas
US11364657B2 (en) 2018-04-04 2022-06-21 Novatec, Inc. Reducing moisture in granular resin material using inert gas
EP4177311A1 (en) 2021-11-04 2023-05-10 LANXESS Performance Materials GmbH Use of polyamide 6

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB919979A (en) * 1959-02-26 1963-02-27 Erwin Lothar Holland Merten A rotary drum apparatus for drying fluent materials such as powdery or granular materials
FR2760524A1 (en) * 1997-03-10 1998-09-11 Paul Christophe Airtight, low pressure rotary furnace

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1246590B (en) 1962-08-03 1967-08-03 Haas Vakuum Technik G M B H Vacuum tumble dryer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB919979A (en) * 1959-02-26 1963-02-27 Erwin Lothar Holland Merten A rotary drum apparatus for drying fluent materials such as powdery or granular materials
FR2760524A1 (en) * 1997-03-10 1998-09-11 Paul Christophe Airtight, low pressure rotary furnace

Also Published As

Publication number Publication date
WO2007116022A2 (en) 2007-10-18
EP2004376A2 (en) 2008-12-24

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