GB1379833A - Method for drying wet powder particles - Google Patents

Method for drying wet powder particles

Info

Publication number
GB1379833A
GB1379833A GB3858872A GB3858872A GB1379833A GB 1379833 A GB1379833 A GB 1379833A GB 3858872 A GB3858872 A GB 3858872A GB 3858872 A GB3858872 A GB 3858872A GB 1379833 A GB1379833 A GB 1379833A
Authority
GB
United Kingdom
Prior art keywords
cylinder
inlet
metres
gas
speed
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
GB3858872A
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.)
Kureha Corp
Original Assignee
Kureha Corp
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 Kureha Corp filed Critical Kureha Corp
Publication of GB1379833A publication Critical patent/GB1379833A/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
    • F26B17/10—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
    • F26B17/101—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 the drying enclosure having the shape of one or a plurality of shafts or ducts, e.g. with substantially straight and vertical axis
    • 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
    • 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
    • F26B3/10—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 carrying the materials or objects to be dried with it

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)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

1379833 Drying of wet powder particles KUREHA KAGAKU KOGYO KK 18 Aug 1972 [18 Aug 1971] 38588/72 Heading F4G Particles (including agglomerated masses) of synthetic polymer are fed at 4 into a vertical cylinder 3 having a conical section 1 provided with an inlet 2 for hot high speed gas, and are thereby broken up and dried, and then conveyed via tube 5 to a cyclone separator 6. The crosssectional area of the cylinder 3 is from 10 to 100 times that of the inlet 2, the vertex angle of the conical section 1 is from 50 to 70 degrees, and the total length of the cylinder 3 is at least 0À05 v + 3 metres where v is the speed in metres/sec. of the gas at the inlet 2. The temperature of the hot gas is from 70‹ to 200‹ C. and its speed is from 40 to 150 metres/sec. The speed of the gas in the cylinder is from 1À5 to 5À0 metres/sec. The length of cylinder between the inlet 4 and outlet end of the cylinder is at least 3 metres, and the inlet 4 should be at a distance from the inlet 2 between 1/2 and 1/20 of the cylinder diameter but not greater than 1/10 of the cylinder length. Examples are described.
GB3858872A 1971-08-18 1972-08-18 Method for drying wet powder particles Expired GB1379833A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6231471A JPS5551723B2 (en) 1971-08-18 1971-08-18

Publications (1)

Publication Number Publication Date
GB1379833A true GB1379833A (en) 1975-01-08

Family

ID=13196534

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3858872A Expired GB1379833A (en) 1971-08-18 1972-08-18 Method for drying wet powder particles

Country Status (8)

Country Link
US (1) US3839802A (en)
JP (1) JPS5551723B2 (en)
BE (1) BE787784A (en)
DE (1) DE2240524A1 (en)
FR (1) FR2151878A5 (en)
GB (1) GB1379833A (en)
IT (1) IT964093B (en)
NL (1) NL158608B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3998596A (en) * 1973-06-04 1976-12-21 Onoda Cement Company, Ltd. Apparatus for treating by-product gypsum to be used as an inhibitor for setting of cement
US4118196A (en) * 1973-06-13 1978-10-03 Onoda Cement Company, Limited Apparatus for calcining wet powdery gypsum
JPS60115032U (en) * 1984-01-13 1985-08-03 松下電工株式会社 mirror cabinet
ATE96369T1 (en) * 1988-12-23 1993-11-15 Buehler Ag METHOD AND DEVICE FOR CONTINUOUSLY CRYSTALIZING POLYESTER MATERIAL.
JPH03195888A (en) * 1989-12-26 1991-08-27 Sanii Package:Kk Method and apparatus for drying particulate material
JP5943256B2 (en) * 2013-04-15 2016-07-05 沖縄パウダーフーズ株式会社 Method for producing bagasse powder

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2486346A (en) * 1945-02-21 1949-10-25 Rca Corp Apparatus for plasticating thermoplastic materials
US3066017A (en) * 1953-07-28 1962-11-27 Exxon Research Engineering Co Control of flow of particulate solids
US2786280A (en) * 1954-03-12 1957-03-26 Ca Nat Research Council Method of contacting solid particles with fluids
US2903800A (en) * 1955-07-05 1959-09-15 Svenska Flaektfabriken Ab Turbulent pneumatic driers for granular and pulverulent material
US3273257A (en) * 1963-07-09 1966-09-20 Rietz Mfg Co Air lift drier
US3263338A (en) * 1963-09-26 1966-08-02 Combustion Eng Flash drying system for fine coal
GB1116786A (en) * 1965-08-04 1968-06-12 Hauni Werke Koerber & Co Kg Apparatus for drying tobacco or other foliate material

Also Published As

Publication number Publication date
US3839802A (en) 1974-10-08
JPS5551723B2 (en) 1980-12-26
JPS4828557A (en) 1973-04-16
IT964093B (en) 1974-01-21
FR2151878A5 (en) 1973-04-20
DE2240524A1 (en) 1973-02-22
BE787784A (en) 1972-12-18
NL7211246A (en) 1973-02-20
NL158608B (en) 1978-11-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee