JPS609710A - Manufacture of reclaimed pellet - Google Patents

Manufacture of reclaimed pellet

Info

Publication number
JPS609710A
JPS609710A JP58116002A JP11600283A JPS609710A JP S609710 A JPS609710 A JP S609710A JP 58116002 A JP58116002 A JP 58116002A JP 11600283 A JP11600283 A JP 11600283A JP S609710 A JPS609710 A JP S609710A
Authority
JP
Japan
Prior art keywords
extruder
scrap
screw
resin
vent
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.)
Pending
Application number
JP58116002A
Other languages
Japanese (ja)
Inventor
Tatsu Shirato
白土　達
Toshiharu Ogoshi
大越　俊治
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.)
Japan Steel Works Ltd
Original Assignee
Japan Steel Works 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 Japan Steel Works Ltd filed Critical Japan Steel Works Ltd
Priority to JP58116002A priority Critical patent/JPS609710A/en
Publication of JPS609710A publication Critical patent/JPS609710A/en
Pending 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
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/0026—Recovery of plastics or other constituents of waste material containing plastics by agglomeration or compacting
    • B29B17/0036—Recovery of plastics or other constituents of waste material containing plastics by agglomeration or compacting of large particles, e.g. beads, granules, pellets, flakes, slices
    • 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
    • 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
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
    • 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
    • B29B9/02—Making granules by dividing preformed material
    • B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • B29C48/41—Intermeshing counter-rotating screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/535—Screws with thread pitch varying along the longitudinal axis
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To perform drying (dehydration) and pulverization or the drying (dehydration) of wet scrap within an extruder and to enable further melt-plasticization and pelletizing of the same, by making use of a multistep vent twin-screw extruder. CONSTITUTION:A crushed article of scrap or the scrap of a molded film is thrown into a different directions twin-screw gearing extruder through a supply opening 2 of the same. The scrap preplasticized or crushed and preplasticized by a first screw part 5 is turned into a semigelatinous state, humidity contained in the scrap is vapored, discharged outside of the extruder through a first vent 3 and dehydrated. The dehydrated molten resin is molten and kneaded further by a second screw part 6 and a volatile matter contained within the resin is discharged through a second vent 4, through which the resin is deaerated. Then the resin is extruded from a tip screw 7 and made into a reclaimed pellet.

Description

【発明の詳細な説明】 ムの耳又は紡糸くずなどのスクラップを再生しこれをは
レット化する方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for recycling scraps such as wool selvedges or spinning waste and turning them into pellets.

従来、この再生ベレットを製造する場合ＯＰＥＴあるい
はＰＡ等のスクラップは含水しているため、スクラップ
を数ミリメートル角に粉砕し、更に乾燥して、これを単
軸押出機などにて可塑化溶融し再生はレットを得ている
。しかしながら、粉砕工程及び乾燥工程があるため再生
コストが上昇し、特に乾燥工程は数時間を要するためそ
の工程を短縮できない。Conventionally, when producing recycled pellets, scraps such as OPET or PA contain water, so the scraps are crushed into pieces of several millimeters square, further dried, and then plasticized and melted using a single-screw extruder for recycling. is getting a let. However, the regeneration cost increases due to the pulverization and drying steps, and the drying process in particular cannot be shortened because it takes several hours.

本発明は上記した従来方法の欠点を克服したものである
。即ち、上記したスクラップを粉砕したもの又はスクラ
ップを直接多段ベントニ軸押出機供給口に投入し、この
押出機によってそのまま再生はレットにするものである
。しだがって、従来の乾燥工程及び粉砕工程又は乾燥工
程を設ける必要はなく、上記押出機内で乾燥（脱水）及
び粉砕又は乾燥（脱水）を行ない、更に溶融可塑化なら
びにはレット化を行なうものである。また、押出機とし
て異方向二軸噛み合い型押出様を用いると、右ねじを有
するスクリューと左ねじを有するスクリューとが噛み合
っているので、フィルムの耳をまるめたものを供給口に
投入しても容易に粉砕できるのでよ一９有利である。The present invention overcomes the drawbacks of the conventional methods described above. That is, the above-mentioned scraps are pulverized or scraps are directly fed into the supply port of a multi-stage bent twin-screw extruder, and the extruder directly recycles them into pellets. Therefore, there is no need to provide the conventional drying process and pulverization process or drying process, and drying (dehydration) and pulverization or drying (dehydration) are performed in the extruder, and further melt plasticization and retization are performed. It is. In addition, when an extruder with twin screws in opposite directions is used, the right-handed screw and the left-handed screw are in mesh with each other, so even if the film with its edges rolled up is fed into the supply port, It is advantageous because it can be easily crushed.

以下、本発明の実施例につき説明する。図は異方向二軸
噛み合い型押出機の正断面図であるが、成形フィルム等
のスクラップの粉砕品又はスクラップを供給口２より投
入する。該スクラップは第１スクリュ一部５で予備可塑
化、又は粉砕かつ予備可塑化され、半ゲル状となり、該
スクラップに含まれていた水分は気化し第１ベント６よ
り押出機外に排出され脱水される。この脱水された溶融
樹脂は更に第２スクリュ一部６で溶融混練され、樹脂内
に含まれていた揮発物等は第２ベント４より排出されて
脱気され、次いで先端スクリュー７より押出され再生深
レットとなる。Examples of the present invention will be described below. The figure is a front cross-sectional view of a twin-screw intermeshing type extruder in opposite directions, and pulverized scraps such as molded films or scraps are inputted from the supply port 2. The scrap is pre-plasticized or pulverized and pre-plasticized in the first screw part 5 to become semi-gel-like, and the water contained in the scrap is vaporized and discharged from the extruder through the first vent 6 for dehydration. be done. This dehydrated molten resin is further melted and kneaded by the second screw part 6, and the volatile substances contained in the resin are discharged from the second vent 4 and degassed, and then extruded from the tip screw 7 for regeneration. It becomes a deep let.

【図面の簡単な説明】[Brief explanation of drawings]

図は本発明実施例に用いた異方向二軸噛み合い型押出機
の正断面図。 １・・・押出機、２・・・供給口、ろ・・・第１ベント
、４・・・第２ベント、５・・・第１スクリュ一部、６
・・・第２スクリュ一部、７・・・先端スクリュー。 特許出願人　株式会社　日　本　製　鋼　所代理人　安
　１）有　三 手続補正書 昭和５８年１り月／？ｏ日 特許庁長官　若　杉　和　夫　殿 １、事件の表示 昭和５８年　特許　願　第　１１６００２　号２、　発
明の名称　再生ペレット製造方法３、補正をする者 事件との関係　特許出願人 ４、代理人　〒１０２ 住所　東京都千代田区麹町３丁目１番８号メイゾン麹町
７０２号 ５、補正命令の日付　自発 ６、補正により増加する発明の数　なし７、補正の対称 図面 ８、補正の内容　別紙のとおりThe figure is a front cross-sectional view of a biaxially meshing extruder used in an example of the present invention. DESCRIPTION OF SYMBOLS 1... Extruder, 2... Supply port, Filter... 1st vent, 4... 2nd vent, 5... Part of 1st screw, 6
... Part of the second screw, 7... Tip screw. Patent applicant: Nippon Steel Co., Ltd. Agent: Yasu 1) Yes Three procedural amendments January 1982/? Mr. Kazuo Wakasugi, Commissioner of the Japan Patent Office, 1, Indication of the case: 1981 Patent Application No. 116002, 2, Title of the invention: Process for manufacturing recycled pellets 3, Relationship with the person making the amendment Patent applicant: 4, Agent: 〒 102 Address: 702-5 Maison Kojimachi, 3-1-8 Kojimachi, Chiyoda-ku, Tokyo Date of amendment order Voluntary action 6 Number of inventions increased by amendment None 7 Symmetrical drawing of amendment 8 Contents of amendment As attached

Claims (1)

【特許請求の範囲】[Claims] 含水している樹脂成形品のスクラップを直接多段ベント
ニ軸押出機供給口に投入し、該押出機により再生はレッ
トを製造する方法。A method in which scraps of water-containing resin molded products are directly fed into the feed port of a multi-stage bent twin-screw extruder, and the extruder produces recycled pellets.
JP58116002A 1983-06-29 1983-06-29 Manufacture of reclaimed pellet Pending JPS609710A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58116002A JPS609710A (en) 1983-06-29 1983-06-29 Manufacture of reclaimed pellet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58116002A JPS609710A (en) 1983-06-29 1983-06-29 Manufacture of reclaimed pellet

Publications (1)

Publication Number Publication Date
JPS609710A true JPS609710A (en) 1985-01-18

Family

ID=14676403

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58116002A Pending JPS609710A (en) 1983-06-29 1983-06-29 Manufacture of reclaimed pellet

Country Status (1)

Country Link
JP (1) JPS609710A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62151317A (en) * 1985-12-26 1987-07-06 Teijin Eng Kk Melting and extruding method for plastic resin and its device
JPH0487228U (en) * 1990-12-11 1992-07-29
JP2007190767A (en) * 2006-01-18 2007-08-02 Nippon Steel Corp Exhaust method of high-density volume-reducing molding machine of waste plastic
JP2007331305A (en) * 2006-06-16 2007-12-27 Nippon Steel Corp Exhaust method of high density volume reducing molding machine of waste plastic
JP2007331304A (en) * 2006-06-16 2007-12-27 Nippon Steel Corp High density volume reducing molding machine of waste plastic and exhaust method therefor
JP2011011508A (en) * 2009-07-06 2011-01-20 Japan Steel Works Ltd:The Method and apparatus for pulverizing, mixing and granulating by using twin screw extruder
US7918662B2 (en) 2006-08-02 2011-04-05 Kohei Sawa Integrated apparatus having kneading part and injecting part
JP2011131397A (en) * 2009-12-22 2011-07-07 Konica Minolta Opto Inc Method for producing optical film and method for molding thermoplastic resin
JP2017515676A (en) * 2014-05-11 2017-06-15 インファイマー テクノロジーズ リミテッドＩｎｆｉｍｅｒ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｌｔｄ． Method for sorting and / or treating waste and processing material produced by said method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5334860A (en) * 1976-09-13 1978-03-31 Mitsubishi Heavy Ind Ltd Vent extruder
JPS59214631A (en) * 1983-05-20 1984-12-04 Japan Steel Works Ltd:The Twin screw extruder

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5334860A (en) * 1976-09-13 1978-03-31 Mitsubishi Heavy Ind Ltd Vent extruder
JPS59214631A (en) * 1983-05-20 1984-12-04 Japan Steel Works Ltd:The Twin screw extruder

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62151317A (en) * 1985-12-26 1987-07-06 Teijin Eng Kk Melting and extruding method for plastic resin and its device
JPH0487228U (en) * 1990-12-11 1992-07-29
JP2007190767A (en) * 2006-01-18 2007-08-02 Nippon Steel Corp Exhaust method of high-density volume-reducing molding machine of waste plastic
JP2007331305A (en) * 2006-06-16 2007-12-27 Nippon Steel Corp Exhaust method of high density volume reducing molding machine of waste plastic
JP2007331304A (en) * 2006-06-16 2007-12-27 Nippon Steel Corp High density volume reducing molding machine of waste plastic and exhaust method therefor
JP4653699B2 (en) * 2006-06-16 2011-03-16 新日本製鐵株式会社 Exhaust method of waste plastic high density volume reduction molding machine and waste plastic high density volume reduction molding machine
US7918662B2 (en) 2006-08-02 2011-04-05 Kohei Sawa Integrated apparatus having kneading part and injecting part
JP2011011508A (en) * 2009-07-06 2011-01-20 Japan Steel Works Ltd:The Method and apparatus for pulverizing, mixing and granulating by using twin screw extruder
JP2011131397A (en) * 2009-12-22 2011-07-07 Konica Minolta Opto Inc Method for producing optical film and method for molding thermoplastic resin
JP2017515676A (en) * 2014-05-11 2017-06-15 インファイマー テクノロジーズ リミテッドＩｎｆｉｍｅｒ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｌｔｄ． Method for sorting and / or treating waste and processing material produced by said method

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