JPS54103463A - Continuous countercurrent drying of synthetic resin chips - Google Patents

Continuous countercurrent drying of synthetic resin chips

Info

Publication number
JPS54103463A
JPS54103463A JP1024578A JP1024578A JPS54103463A JP S54103463 A JPS54103463 A JP S54103463A JP 1024578 A JP1024578 A JP 1024578A JP 1024578 A JP1024578 A JP 1024578A JP S54103463 A JPS54103463 A JP S54103463A
Authority
JP
Japan
Prior art keywords
tower
pipeline
chips
fed
extractant
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.)
Granted
Application number
JP1024578A
Other languages
Japanese (ja)
Other versions
JPS5949881B2 (en
Inventor
Kenichi Shimomori
Makoto Hasegawa
Takeo Fujimoto
Tsunenori Tsuji
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.)
Unitika Ltd
Original Assignee
Unitika Ltd
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 Unitika Ltd filed Critical Unitika Ltd
Priority to JP1024578A priority Critical patent/JPS5949881B2/en
Publication of JPS54103463A publication Critical patent/JPS54103463A/en
Publication of JPS5949881B2 publication Critical patent/JPS5949881B2/en
Expired legal-status Critical Current

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drying Of Solid Materials (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

PURPOSE:To eliminate the variation of amount of synthetic resin chips retained in a continuous countercurrent drying tower and to obtain the chips free from uneven drying, by feeding constant amounts of an extractant and the chips after dehydration to the tower top continuously. CONSTITUTION:Synthetic resin chips fed from the pipeline 2 to the scouring tower 1 are brought into contact with an extractant which is fed from the pipeline 3 and discharged from the pipeline 4 countercurrently, fed through the pipeline 5 to the top of the dehydrator 6 together with part of the extractant, and dehydrated. The extractant is discharged from the pipeline 7, and the chips are fed from the pipeline 8 to the top of the continuous countercurrent drying tower 9. The flow rate of a drying inert gas is controlled by the control valve 22 drivingly connected through the controller 21 to the pressure detector 20 at the top of the tower 9 so that the top pressure of the tower 9 may be constant. The gas is fed from the blower 17 through the heat exchanger 18 and the pipeline 23 to the bottom of the tower 9 and brought into countercurrent contact with the chips flowing down the tower 9.
JP1024578A 1978-01-31 1978-01-31 Continuous countercurrent drying method for synthetic resin chips Expired JPS5949881B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1024578A JPS5949881B2 (en) 1978-01-31 1978-01-31 Continuous countercurrent drying method for synthetic resin chips

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1024578A JPS5949881B2 (en) 1978-01-31 1978-01-31 Continuous countercurrent drying method for synthetic resin chips

Publications (2)

Publication Number Publication Date
JPS54103463A true JPS54103463A (en) 1979-08-14
JPS5949881B2 JPS5949881B2 (en) 1984-12-05

Family

ID=11744913

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1024578A Expired JPS5949881B2 (en) 1978-01-31 1978-01-31 Continuous countercurrent drying method for synthetic resin chips

Country Status (1)

Country Link
JP (1) JPS5949881B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5818082A (en) * 1981-07-25 1983-02-02 株式会社松井製作所 Method of drying powdered and granular body
JP2002144335A (en) * 2000-11-10 2002-05-21 Nakamura Kagakukogyo Co Ltd Dryer for granular plastic material
WO2005077628A1 (en) * 2004-02-16 2005-08-25 Plastic Systems S.P.A. Process and plant for dehumidification, heating and injection moulding of granulated plastics materials
JP2015127143A (en) * 2015-01-30 2015-07-09 株式会社カワタ Granule treatment method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5818082A (en) * 1981-07-25 1983-02-02 株式会社松井製作所 Method of drying powdered and granular body
JPH0258553B2 (en) * 1981-07-25 1990-12-10 Matsui Mfg Co
JP2002144335A (en) * 2000-11-10 2002-05-21 Nakamura Kagakukogyo Co Ltd Dryer for granular plastic material
WO2005077628A1 (en) * 2004-02-16 2005-08-25 Plastic Systems S.P.A. Process and plant for dehumidification, heating and injection moulding of granulated plastics materials
JP2015127143A (en) * 2015-01-30 2015-07-09 株式会社カワタ Granule treatment method

Also Published As

Publication number Publication date
JPS5949881B2 (en) 1984-12-05

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