GB1364310A - Method of and apparatus for drying plastics material granules - Google Patents

Method of and apparatus for drying plastics material granules

Info

Publication number
GB1364310A
GB1364310A GB4924171A GB4924171A GB1364310A GB 1364310 A GB1364310 A GB 1364310A GB 4924171 A GB4924171 A GB 4924171A GB 4924171 A GB4924171 A GB 4924171A GB 1364310 A GB1364310 A GB 1364310A
Authority
GB
United Kingdom
Prior art keywords
fluidized bed
granules
drier
fluidized
solid bed
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.)
Expired
Application number
GB4924171A
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.)
Grenzebach GmbH and Co KG
Original Assignee
Buettner Schilde Haas AG
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 DE19702053876 external-priority patent/DE2053876C3/en
Application filed by Buettner Schilde Haas AG filed Critical Buettner Schilde Haas AG
Publication of GB1364310A publication Critical patent/GB1364310A/en
Expired 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
    • 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
    • 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
    • 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
    • B29B9/00—Making granules
    • B29B9/16—Auxiliary treatment of granules
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Drying Of Solid Materials (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)

Abstract

1364310 Fluidized and solid bed driers BUTTNER-SCHILDE-HAAS AG 22 Oct 1971 [3 Nov 1970] 49241/71 Heading F4G Plastics granules are dried initially in a fluidized bed until their tendency to stick together is lost and then finally dried in a solid bed. In Fig. 1, fresh air is supplied by a blower 13 via a demoisturizer 12 and a heater 14 to a solid bed drier 3, and is exhausted together with exhaust air from the fluidized bed drier 1 by suction through a common conduit 6 for recirculation through the fluidized bed drier 1. A fan 8 conveys the exhaust air through a dust extractor 7 to an air heater 9, to atmosphere, and to the demoisturizer 12 to remove absorbed moisture from the silica gel in it. The dried granules are removed periodically by means of valve 15. In another embodiment, the fluidized bed is annular and surrounds the solid bed drier, the granules being introduced into the fluidized bed at a single point and proceeding around it for nearly a complete turn before sliding down a shoot into the solid bed drier.
GB4924171A 1970-11-03 1971-10-22 Method of and apparatus for drying plastics material granules Expired GB1364310A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702053876 DE2053876C3 (en) 1970-11-03 Device for drying plastic granules

Publications (1)

Publication Number Publication Date
GB1364310A true GB1364310A (en) 1974-08-21

Family

ID=5786950

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4924171A Expired GB1364310A (en) 1970-11-03 1971-10-22 Method of and apparatus for drying plastics material granules

Country Status (3)

Country Link
FR (1) FR2113233A5 (en)
GB (1) GB1364310A (en)
IT (1) IT939119B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1249411A2 (en) * 2001-04-05 2002-10-16 Coperion Waeschle GmbH & Co. KG Method and apparatus for transporting plastics granules
US7847051B2 (en) 2008-03-05 2010-12-07 Bayer Materialscience Ag Phase boundary processes for preparing polycarbonates
US7968671B2 (en) 2008-05-15 2011-06-28 Bayer Material Science Ag Alkylphenol-terminated copolycarbonates, processes for preparing the same, molding compositions containing the same, and articles prepared therefrom
US8202961B2 (en) 2008-02-13 2012-06-19 Bayer Materialscience Ag Alkylphenol for adjusting the molecular weight, and polycarbonate compositions having improved properties
CN103331838A (en) * 2013-07-18 2013-10-02 唐山三友氯碱有限责任公司 DCS (distributed control system)-based method for uniformly distributing material in fluidized bed
CN105546950A (en) * 2016-02-18 2016-05-04 唐山市宏林硅胶有限公司 Continuous drying system for silica gel production
US9771451B2 (en) 2014-01-24 2017-09-26 Covestro Deutschland Ag Method for producing polycarbonate according to the phase interface method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2530304C3 (en) * 1975-07-08 1979-03-22 Basf Ag, 6700 Ludwigshafen Method and device for drying and tempering polyamide granulate

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1249411A2 (en) * 2001-04-05 2002-10-16 Coperion Waeschle GmbH & Co. KG Method and apparatus for transporting plastics granules
EP1249411A3 (en) * 2001-04-05 2006-05-10 Coperion Waeschle GmbH & Co. KG Method and apparatus for transporting plastics granules
US8202961B2 (en) 2008-02-13 2012-06-19 Bayer Materialscience Ag Alkylphenol for adjusting the molecular weight, and polycarbonate compositions having improved properties
US7847051B2 (en) 2008-03-05 2010-12-07 Bayer Materialscience Ag Phase boundary processes for preparing polycarbonates
US7968671B2 (en) 2008-05-15 2011-06-28 Bayer Material Science Ag Alkylphenol-terminated copolycarbonates, processes for preparing the same, molding compositions containing the same, and articles prepared therefrom
CN103331838A (en) * 2013-07-18 2013-10-02 唐山三友氯碱有限责任公司 DCS (distributed control system)-based method for uniformly distributing material in fluidized bed
CN103331838B (en) * 2013-07-18 2016-02-24 唐山三友氯碱有限责任公司 Based on the equally distributed method of fluidised bed material that DCS system controls
US9771451B2 (en) 2014-01-24 2017-09-26 Covestro Deutschland Ag Method for producing polycarbonate according to the phase interface method
CN105546950A (en) * 2016-02-18 2016-05-04 唐山市宏林硅胶有限公司 Continuous drying system for silica gel production
CN105546950B (en) * 2016-02-18 2018-07-10 唐山市宏林硅胶有限公司 For the continuous drying system of silica gel production

Also Published As

Publication number Publication date
FR2113233A5 (en) 1972-06-23
DE2053876A1 (en) 1972-05-10
IT939119B (en) 1973-02-10
DE2053876B2 (en) 1976-12-23

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee