JP2020104286A - Separating method and separating apparatus for composite member - Google Patents
Separating method and separating apparatus for composite member Download PDFInfo
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- JP2020104286A JP2020104286A JP2018242396A JP2018242396A JP2020104286A JP 2020104286 A JP2020104286 A JP 2020104286A JP 2018242396 A JP2018242396 A JP 2018242396A JP 2018242396 A JP2018242396 A JP 2018242396A JP 2020104286 A JP2020104286 A JP 2020104286A
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- 239000002131 composite material Substances 0.000 title claims abstract description 90
- 238000000034 method Methods 0.000 title claims abstract description 28
- 239000007788 liquid Substances 0.000 claims abstract description 173
- 238000000926 separation method Methods 0.000 claims abstract description 113
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims abstract description 69
- 239000000463 material Substances 0.000 claims abstract description 64
- 239000007769 metal material Substances 0.000 claims abstract description 64
- 239000011347 resin Substances 0.000 claims abstract description 63
- 229920005989 resin Polymers 0.000 claims abstract description 63
- 238000001914 filtration Methods 0.000 claims abstract description 29
- 238000007599 discharging Methods 0.000 claims abstract description 9
- 239000011248 coating agent Substances 0.000 claims abstract description 5
- 238000000576 coating method Methods 0.000 claims abstract description 5
- 238000007598 dipping method Methods 0.000 claims 1
- 239000012535 impurity Substances 0.000 description 14
- 238000002955 isolation Methods 0.000 description 9
- 238000004064 recycling Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 239000002244 precipitate Substances 0.000 description 7
- 239000000470 constituent Substances 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000010907 mechanical stirring Methods 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000010786 composite waste Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
Classifications
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- 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
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- Processing Of Solid Wastes (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
Description
本発明は、複合部材の分離方法及び分離装置に関する。 The present invention relates to a separating method and a separating device for a composite member.
従来、金属材とその金属材を被覆する樹脂材とを備える複合部材について、リサイクルのために金属材と樹脂材とを分離する方法が知られている。例えば、特許文献１には、被覆電線を加熱処理して樹脂製の被覆材を炭化させ、被覆材と銅線とを分離する方法が開示されている。また、特許文献２には、樹脂と金属部材とで構成される複合廃棄物から一部の樹脂を剥ぎ取った後、冷却して復熱させることにより、金属と樹脂とを分離する方法が開示されている。 BACKGROUND ART Conventionally, a method of separating a metal material and a resin material for recycling is known for a composite member including a metal material and a resin material that coats the metal material. For example, Patent Document 1 discloses a method of heating a coated electric wire to carbonize a resin-made coating material and separating the coating material and the copper wire. Further, Patent Document 2 discloses a method of separating a metal and a resin by stripping a part of the resin from a composite waste composed of the resin and a metal member, and then cooling and reheating. Has been done.
しかしながら、従来の方法では、複合部材における金属材と樹脂材との分離において、加熱や冷却の処理が必要であったり、金属材から樹脂材を剥ぎ取ったりする必要がある。そのため、複合部材における金属材と樹脂材とを分離する作業が非常に煩雑であり、分離効率や分離精度も十分とは言えなかった。 However, in the conventional method, it is necessary to perform heating and cooling treatments or to strip the resin material from the metal material when separating the metal material and the resin material in the composite member. Therefore, the work of separating the metal material and the resin material in the composite member is very complicated, and the separation efficiency and the separation accuracy cannot be said to be sufficient.
本発明は、金属材と樹脂材とを容易に、効率良く、かつ精度良く分離できる複合部材の分離方法及び分離装置を提供する。 The present invention provides a method and a device for separating a composite member, which can separate a metal material and a resin material easily, efficiently, and accurately.
本発明の一の態様である複合部材の分離方法は、金属材と金属材を被覆する樹脂材とを備える複合部材について、金属材と樹脂材とを分離する複合部材の分離方法である。複合部材の分離方法は、容器に収容されたジクロロメタンを含む分離液に複合部材を浸漬し、金属材と樹脂材とを分離する分離工程を備える。分離工程の少なくとも一部において、容器内の分離液を排出し、排出した分離液をろ過し、ろ過した分離液を容器内に供給することにより、容器内の分離液をろ過しながら循環させる循環工程を行う。 A method for separating a composite member, which is an aspect of the present invention, is a method for separating a composite member including a metal material and a resin material coating the metal material, for separating the metal material and the resin material. The method for separating the composite member includes a separation step of immersing the composite member in a separation liquid containing dichloromethane contained in a container to separate the metal material and the resin material. In at least a part of the separation process, the separated liquid in the container is discharged, the discharged separated liquid is filtered, and the filtered separated liquid is supplied into the container to circulate while circulating the separated liquid in the container. Carry out the process.
上記複合部材の分離方法によれば、ジクロロメタンを含む分離液に複合部材を浸漬する分離工程を行う。そのため、分離液によって複合部材における樹脂材を膨潤させ、金属材から樹脂材を容易に剥離させることができる。これにより、複合部材における金属材と樹脂材とを容易に分離できる。 According to the above-mentioned method for separating the composite member, the separation step of immersing the composite member in the separation liquid containing dichloromethane is performed. Therefore, the resin material in the composite member can be swollen by the separated liquid, and the resin material can be easily separated from the metal material. Thereby, the metal material and the resin material in the composite member can be easily separated.
また、分離工程の少なくとも一部において、容器内の分離液をろ過しながら循環させる循環工程を行う。そのため、分離液中の不純物を除去しながら、分離液の純度を高い状態で維持したまま、分離工程を行うことができる。これにより、複合部材における金属材と樹脂材とを効率良く、かつ精度良く分離でき、さらにその効果を高い状態で維持できる。 In addition, in at least a part of the separation step, a circulation step of circulating the separated liquid in the container while filtering is performed. Therefore, the separation step can be performed while removing impurities in the separated liquid while maintaining the purity of the separated liquid in a high state. Thereby, the metal material and the resin material in the composite member can be efficiently and accurately separated, and the effect can be maintained in a high state.
特に、ジクロロメタンを含む分離液を用いる場合、複合部材の金属材と樹脂材との間に介在する接着剤等が分離液の液面上に浮遊したり、分離液中に沈殿したりする。このような浮遊物、沈殿物等の不純物は、金属材と樹脂材との分離効率及び分離精度を低下させる要因となる。そのため、容器内の分離液をろ過して不純物を除去しながら循環させることにより、複合部材における金属材と樹脂材との分離効率及び分離精度を効果的に高めることができる。 In particular, when a separation liquid containing dichloromethane is used, an adhesive or the like interposed between the metal material and the resin material of the composite member floats on the liquid surface of the separation liquid or precipitates in the separation liquid. Impurities such as such suspended matters and precipitates are factors that reduce the separation efficiency and separation accuracy of the metal material and the resin material. Therefore, by circulating the separated liquid in the container while filtering and removing impurities, it is possible to effectively increase the separation efficiency and the separation accuracy of the metal material and the resin material in the composite member.
また、容器内の分離液を循環させることにより、容器内において分離液の液流を生じさせることが可能となる。これにより、複合部材における金属材と樹脂材との分離効率及び分離精度を高めることができると共に、機械的な撹拌に比べて分離液中のジクロロメタンの揮発を抑制し、複合部材のリサイクルコストを低減できる。 Further, by circulating the separated liquid in the container, it becomes possible to generate a liquid flow of the separated liquid in the container. As a result, it is possible to improve the separation efficiency and separation accuracy between the metal material and the resin material in the composite member, and suppress the volatilization of dichloromethane in the separated liquid as compared with mechanical stirring, thus reducing the recycling cost of the composite member. it can.
また、分離液をろ過しながら使用するため、分離液の繰り返しの使用が可能となる。これにより、複合部材のリサイクルコストを低減できる。また、複合部材における金属材と樹脂材とを精度良く分離できるため、金属材及び樹脂材の再利用が十分に可能となり、複合部材のリサイクル効率を高めることができる。 Further, since the separated liquid is used while being filtered, the separated liquid can be repeatedly used. Thereby, the recycling cost of the composite member can be reduced. Moreover, since the metal material and the resin material in the composite member can be accurately separated, the metal material and the resin material can be sufficiently reused, and the recycling efficiency of the composite member can be improved.
上記複合部材の分離方法において、分離液は、ジクロロメタンであってもよい。この場合には、複合部材における金属材と樹脂材とをさらに容易に、効率良く、かつ精度良く分離できる。また、容器内の分離液をろ過しながら循環させることによる効果をより一層発揮できる。 In the method for separating a composite member, the separation liquid may be dichloromethane. In this case, the metal material and the resin material in the composite member can be separated more easily, efficiently, and accurately. Further, the effect of circulating the separated liquid in the container while filtering can be further exerted.
また、循環工程の少なくとも一部において、容器内の分離液を容器の上部から排出し、ろ過した分離液を容器の下部から容器内に供給してもよい。この場合には、分離液の液面上の浮遊物を容器の上部から効率良く排出できる。また、容器内において分離液の下から上への液流を生じさせ、分離液中の沈殿物を下から上へと運んで容器の上部から効率良く排出できる。これにより、分離液中の不純物を効率良くろ過できる。 Further, in at least a part of the circulation step, the separated liquid in the container may be discharged from the upper part of the container and the filtered separated liquid may be supplied from the lower part of the container into the container. In this case, suspended matter on the liquid surface of the separated liquid can be efficiently discharged from the upper part of the container. Further, a liquid flow from the bottom to the top of the separation liquid is generated in the container, and the precipitate in the separation liquid can be carried from the bottom to the top and efficiently discharged from the upper part of the container. Thereby, the impurities in the separated liquid can be efficiently filtered.
また、循環工程の一部において、容器内の分離液を容器の下部から排出し、ろ過した分離液を容器の上部から容器内に供給してもよい。この場合には、容器内において分離液の上から下への液流を生じさせることができる。例えば、容器内において分離液の下から上への液流と上から下への液流とを交互に生じさせ、分離液のろ過効率を高めることができる。 Further, in a part of the circulation step, the separated liquid in the container may be discharged from the lower part of the container, and the filtered separated liquid may be supplied into the container from the upper part of the container. In this case, a liquid flow from the top to the bottom of the separated liquid can be generated in the container. For example, a liquid flow from the bottom to the top of the separation liquid and a liquid flow from the top to the bottom may be alternately generated in the container to enhance the filtration efficiency of the separation liquid.
本発明の他の態様である複合部材の分離装置は、金属材と金属材の少なくとも一部を被覆する樹脂材とを備える複合部材について、金属材と樹脂材とを分離する複合部材の分離装置である。複合部材の分離装置は、ジクロロメタンを含む分離液を収容する容器と、容器に設けられ、容器内の分離液を排出する排出部と、容器に設けられ、分離液を容器内に供給する供給部と、排出部と供給部とを接続する循環部と、循環部に設けられ、分離液をろ過するろ過部と、を備える。 A composite member separating apparatus according to another aspect of the present invention is a composite member separating apparatus that separates a metal material and a resin material for a composite member including a metal material and a resin material that covers at least a part of the metal material. Is. The separating device for a composite member includes a container that stores a separation liquid containing dichloromethane, a discharge unit that is provided in the container and discharges the separation liquid in the container, and a supply unit that is provided in the container and that supplies the separation liquid into the container. And a circulation unit that connects the discharge unit and the supply unit, and a filtration unit that is provided in the circulation unit and filters the separated liquid.
上記複合部材の分離装置によれば、容器に収容されたジクロロメタンを含む分離液に複合部材を浸漬し、金属材と樹脂材とを分離する分離工程を行うことができる。また、分離工程において、容器内の分離液を容器の排出部から排出し、排出した分離液をろ過部でろ過し、ろ過した分離液を容器の供給部から容器内に供給することにより、容器内の分離液をろ過しながら循環させる循環工程を行うことができる。これにより、上記複合部材の分離方法と同様の効果が得られる。 According to the above-described composite member separating apparatus, the separation step of immersing the composite member in the separation liquid containing dichloromethane contained in the container to separate the metal material and the resin material can be performed. In the separation step, the separated liquid in the container is discharged from the discharge part of the container, the discharged separated liquid is filtered by the filtering part, and the filtered separated liquid is supplied from the supply part of the container into the container. A circulation step of circulating the separated liquid inside while filtering can be performed. As a result, the same effect as the method for separating the composite member can be obtained.
上記複合部材の分離装置において、分離液は、ジクロロメタンであってもよい。この場合には、複合部材における金属材と樹脂材とをさらに容易に、効率良く、かつ精度良く分離できる。また、容器内の分離液をろ過しながら循環させることによる効果をより一層発揮できる。 In the above-described composite member separating apparatus, the separation liquid may be dichloromethane. In this case, the metal material and the resin material in the composite member can be separated more easily, efficiently, and accurately. Further, the effect of circulating the separated liquid in the container while filtering can be further exerted.
また、排出部は、容器の上部に設けられた上部排出部を含み、供給部は、容器の下部に設けられた下部供給部を含んでもよい。この場合には、分離液の液面上の浮遊物を容器の上部排出部から効率良く排出できる。また、容器内において分離液の下から上への液流を生じさせ、分離液中の沈殿物を下から上へと運んで容器の上部排出部から効率良く排出できる。これにより、分離液中の不純物を効率良くろ過できる。 Further, the discharging unit may include an upper discharging unit provided at an upper portion of the container, and the supplying unit may include a lower supplying unit provided at a lower portion of the container. In this case, the suspended matter on the liquid surface of the separated liquid can be efficiently discharged from the upper discharge portion of the container. Further, a liquid flow from the bottom to the top of the separated liquid is generated in the container, and the precipitate in the separated liquid can be carried from the bottom to the top to be efficiently discharged from the upper discharge part of the container. Thereby, the impurities in the separated liquid can be efficiently filtered.
また、排出部は、さらに、容器の下部に設けられた下部排出部を含み、供給部は、さらに、容器の上部に設けられた上部供給部を含んでもよい。この場合には、容器内において分離液の上から下への液流を生じさせることができる。例えば、容器内において分離液の下から上への液流と上から下への液流とを交互に生じさせ、分離液のろ過効率を高めることができる。 Further, the discharging unit may further include a lower discharging unit provided at a lower portion of the container, and the supply unit may further include an upper supplying unit provided at an upper portion of the container. In this case, a liquid flow from the top to the bottom of the separated liquid can be generated in the container. For example, a liquid flow from the bottom to the top of the separation liquid and a liquid flow from the top to the bottom may be alternately generated in the container to enhance the filtration efficiency of the separation liquid.
以下、本発明の実施形態を図面と共に説明する。
（第１実施形態）
まず、複合部材の分離装置（以下、単に分離装置という。）について説明する。
図１に示すように、分離装置１は、金属製の容器２を備えている。容器２は、円筒状の本体部２１と、本体部２の下端を閉塞する底部２２と、本体部２１の上端を閉塞する蓋部２３とを有する。蓋部２３は、本体部２１の上端を開閉可能に構成されている。
Embodiments of the present invention will be described below with reference to the drawings.
(First embodiment)
First, a separating device for a composite member (hereinafter, simply referred to as a separating device) will be described.
As shown in FIG. 1, the separation device 1 includes a metal container 2. The container 2 has a cylindrical main body 21, a bottom 22 that closes the lower end of the main body 2, and a lid 23 that closes the upper end of the main body 21. The lid portion 23 is configured to open and close the upper end of the main body portion 21.
容器２内には、分離液１０が収容されている。分離液１０としては、市販のジクロロメタン（塩化メチレン、ＣＨ２Ｃｌ２）を用いる。本実施形態の分離液１０は、ジクロロメタンの含有量が９９質量％以上であり、安定剤として添加されているメチルアルコールの含有量が０．５質量％である。 The separation liquid 10 is contained in the container 2. As the separation liquid 10, commercially available dichloromethane (methylene chloride, CH 2 Cl 2 ) is used. In the separated liquid 10 of the present embodiment, the content of dichloromethane is 99% by mass or more, and the content of methyl alcohol added as a stabilizer is 0.5% by mass.
容器２は、容器２内の分離液１０を排出する排出口（排出部）２４と、分離液１０を容器２内に供給する供給口（供給部）２５とを有する。排出口２４は、容器２の本体部２１の上部に設けられている。供給口２５は、容器２の本体部２１の下部に設けられている。 The container 2 has a discharge port (discharge part) 24 for discharging the separation liquid 10 in the container 2 and a supply port (supply part) 25 for supplying the separation liquid 10 into the container 2. The discharge port 24 is provided in the upper portion of the main body portion 21 of the container 2. The supply port 25 is provided in the lower portion of the main body portion 21 of the container 2.
分離装置１は、容器２の排出口２４と供給口２５とを接続する循環部３を備えている。循環部３は、容器２の外部に設けられている。循環部３は、内部に分離液１０を流通させることができるように、管状に構成されている。 The separation device 1 includes a circulation unit 3 that connects the discharge port 24 and the supply port 25 of the container 2. The circulation unit 3 is provided outside the container 2. The circulation unit 3 has a tubular shape so that the separated liquid 10 can be circulated inside.
循環部３の途中には、循環部３に分離液１０を流通させるためのポンプ４が設けられている。ポンプ４を駆動させることにより、容器２内の分離液１０を容器２の排出口２４から排出し、循環部３を流通させ、容器２の供給口２５から容器２内に供給することができる。すなわち、容器２内の分離液１０を循環させることができる。 A pump 4 for circulating the separated liquid 10 through the circulation unit 3 is provided in the middle of the circulation unit 3. By driving the pump 4, the separated liquid 10 in the container 2 can be discharged from the discharge port 24 of the container 2, circulated in the circulation unit 3, and supplied into the container 2 from the supply port 25 of the container 2. That is, the separated liquid 10 in the container 2 can be circulated.
循環部３の途中であってポンプ４より手前（循環部３におけるポンプ４よりも排出口２４側）には、分離液１０をろ過するろ過部５が設けられている。本実施形態において、ろ過部５は、ろ材としてバグフィルタ（袋状フィルタ）を備えている。循環部３を流通する分離液１０がろ過部５のバグフィルタを通過することにより、分離液１０中の不純物が除去される。 A filter unit 5 that filters the separated liquid 10 is provided in the middle of the circulation unit 3 and in front of the pump 4 (on the discharge port 24 side of the pump 4 in the circulation unit 3). In the present embodiment, the filtering unit 5 includes a bag filter (bag-shaped filter) as a filter material. Impurities in the separated liquid 10 are removed by passing the separated liquid 10 flowing through the circulation unit 3 through the bag filter of the filtration unit 5.
次に、複合部材について説明する。
図２に示すように、複合部材１１は、長尺状の金属材１１１と金属材１１１の表面の一部を被覆する樹脂材１１２とにより構成された、リサイクルの対象となる自動車用部品である。樹脂材１１２は、接着剤等を用いて金属材１１１の表面に接合されている。本実施形態において、金属材はステンレス鋼（ＳＵＳ鋼）からなり、樹脂材はポリ塩化ビニル（ＰＶＣ）からなる。
Next, the composite member will be described.
As shown in FIG. 2, the composite member 11 is an automobile part to be recycled, which is composed of a long metal material 111 and a resin material 112 that covers a part of the surface of the metal material 111. .. The resin material 112 is bonded to the surface of the metal material 111 using an adhesive or the like. In this embodiment, the metal material is stainless steel (SUS steel), and the resin material is polyvinyl chloride (PVC).
次に、複合部材の分離方法（以下、単に分離方法という。）について説明する。
図３に示すように、分離装置１の容器２の蓋部２３を開け、複数の複合部材１１を容器２内に収容された分離液１０に投入する。そして、容器２の蓋部２３を閉め、容器２内を密閉した状態とする。
Next, a method for separating the composite member (hereinafter, simply referred to as a separating method) will be described.
As shown in FIG. 3, the lid 23 of the container 2 of the separation apparatus 1 is opened, and the plurality of composite members 11 are put into the separation liquid 10 contained in the container 2. Then, the lid portion 23 of the container 2 is closed to make the inside of the container 2 airtight.
なお、複合部材１１を分離液１０に投入する際には、複合部材１１をそのまま分離液１０に投入してもよいし、複合部材１１の投入及び取り出しを容易とするために、複合部材１１を網かご等の入れ物に入れ、それを分離液１０に投入してもよい。 When the composite member 11 is put into the separated liquid 10, the composite member 11 may be put into the separated liquid 10 as it is, or the composite member 11 may be easily inserted and taken out. It may be placed in a container such as a net basket and then put into the separation liquid 10.
次いで、複合部材１１を容器２内の分離液１０に所定時間浸漬し、複合部材１１における金属材１１１と樹脂材１１２とを分離する（分離工程）。浸漬時間は、複合部材１１の大きさ、数、材質等によって適宜設定することができる。 Next, the composite member 11 is immersed in the separation liquid 10 in the container 2 for a predetermined time to separate the metal material 111 and the resin material 112 in the composite member 11 (separation step). The immersion time can be appropriately set depending on the size, number, material and the like of the composite member 11.
そして、複合部材１１を分離液１０に浸漬している間は、容器２内の分離液１０をろ過しながら循環させる（循環工程）。具体的には、ポンプ４を駆動させ、容器２内の分離液１０を容器２の排出口２４から排出し、循環部３を流通させ、容器２の供給口２５から容器２内に供給する（図３の実線矢印）。循環部３を流通する分離液１０が循環部３の途中に設けられたろ過部５のバグフィルタを通過することにより、分離液１０中の不純物が除去される。 Then, while the composite member 11 is immersed in the separation liquid 10, the separation liquid 10 in the container 2 is circulated while being filtered (circulation step). Specifically, the pump 4 is driven, the separated liquid 10 in the container 2 is discharged from the discharge port 24 of the container 2, the circulation unit 3 is circulated, and the separated liquid 10 is supplied into the container 2 from the supply port 25 of the container 2 ( Solid arrow in FIG. 3). Impurities in the separation liquid 10 are removed by passing the separation liquid 10 flowing through the circulation unit 3 through a bag filter of the filtration unit 5 provided in the middle of the circulation unit 3.
また、容器２内の分離液１０を容器２の排出口２４から排出し、容器２の供給口２５から容器２内に供給することを連続的に行い、容器２内の分離液１０を循環させることにより、容器２内において分離液１０の下から上への（上方への）液流が生じる（図３の点線矢印）。 Further, the separation liquid 10 in the container 2 is continuously discharged from the discharge port 24 of the container 2 and supplied into the container 2 from the supply port 25 of the container 2, and the separation liquid 10 in the container 2 is circulated. As a result, a liquid flow from the bottom to the top (upward) of the separation liquid 10 is generated in the container 2 (dotted arrow in FIG. 3 ).
このように、複合部材１１を容器２内の分離液１０に所定時間浸漬し、容器２内の分離液１０をろ過しながら循環させることにより、分離液１０によって複合部材１１における樹脂材１１２を膨潤させ、金属材１１１から樹脂材１１２を剥離させる。そして、複合部材１１における金属材１１１と樹脂材１１２とを分離する。 In this way, the composite member 11 is immersed in the separation liquid 10 in the container 2 for a predetermined time, and the separation liquid 10 in the container 2 is circulated while being filtered, so that the resin material 112 in the composite member 11 is swollen by the separation liquid 10. Then, the resin material 112 is separated from the metal material 111. Then, the metal material 111 and the resin material 112 in the composite member 11 are separated.
複合部材１１を容器２内の分離液１０に所定時間浸漬した後、容器２内から複合部材１１を取り出す。このとき、金属材１１１と樹脂材１１２とは、分離された状態又は簡単に分離できる状態で取り出される。そして、取り出した金属材１１１と樹脂材１１２とをそれぞれ乾燥させ、再利用可能な状態の金属材１１１と樹脂材１１２とが得られる。 After the composite member 11 is immersed in the separated liquid 10 in the container 2 for a predetermined time, the composite member 11 is taken out from the container 2. At this time, the metal material 111 and the resin material 112 are taken out in the separated state or the easily separable state. Then, the metal material 111 and the resin material 112 that have been taken out are respectively dried to obtain the reusable metal material 111 and the resin material 112.
次に、本実施形態の分離方法における作用効果について説明する。
本実施形態の分離方法によれば、ジクロロメタンを含む分離液１０に複合部材１１を浸漬する分離工程を行う。そのため、分離液１０によって複合部材１１における樹脂材１１２を膨潤させ、金属材１１１から樹脂材１１２を容易に剥離させることができる。これにより、複合部材１１における金属材１１１と樹脂材１１２とを容易に分離できる。
Next, the function and effect of the separation method of this embodiment will be described.
According to the separation method of the present embodiment, the separation step of immersing the composite member 11 in the separation liquid 10 containing dichloromethane is performed. Therefore, the resin material 112 in the composite member 11 can be swollen by the separated liquid 10, and the resin material 112 can be easily separated from the metal material 111. Thereby, the metal material 111 and the resin material 112 in the composite member 11 can be easily separated.
また、分離工程において、容器２内の分離液１０をろ過しながら循環させる循環工程を行う。そのため、分離液１０中の不純物を除去しながら、分離液１０の純度を高い状態で維持したまま、分離工程を行うことができる。これにより、複合部材１１における金属材１１１と樹脂材１１２とを効率良く、かつ精度良く（きれいに）分離でき、さらにその効果を高い状態で維持できる。 In the separation step, a circulation step of circulating the separated liquid 10 in the container 2 while filtering is performed. Therefore, the separation step can be performed while removing impurities in the separated liquid 10 while maintaining the purity of the separated liquid 10 in a high state. Thereby, the metal material 111 and the resin material 112 in the composite member 11 can be efficiently and accurately (cleanly) separated, and the effect can be maintained in a high state.
特に、ジクロロメタンを含む分離液を用いる場合、複合部材１１の金属材１１１と樹脂材１１２との間に介在する接着剤等が分離液１０の液面上に浮遊したり、分離液１０中に沈殿したりする。このような浮遊物、沈殿物等の不純物は、金属材１１１と樹脂材１１２との分離効率及び分離精度を低下させる要因となる。そのため、容器２内の分離液１０をろ過して不純物を除去しながら循環させることにより、複合部材１１における金属材１１１と樹脂材１１２との分離効率及び分離精度を効果的に高めることができる。 In particular, when a separation liquid containing dichloromethane is used, an adhesive or the like interposed between the metal material 111 and the resin material 112 of the composite member 11 floats on the liquid surface of the separation liquid 10 or precipitates in the separation liquid 10. To do Impurities such as such suspended matters and precipitates are factors that reduce the efficiency and accuracy of separation between the metal material 111 and the resin material 112. Therefore, the separation liquid 10 in the container 2 is filtered and circulated while removing impurities, whereby the separation efficiency and the separation accuracy of the metal material 111 and the resin material 112 in the composite member 11 can be effectively improved.
また、容器２内の分離液１０を循環させることにより、容器２内において分離液１０の液流を生じさせることが可能となる。そのため、分離液１０の流動によって複合部材１１における金属材１１１と樹脂材１１２との分離を促進させることができる。これにより、複合部材１１における金属材１１１と樹脂材１１２との分離効率及び分離精度を高めることができると共に、機械的な撹拌に比べて分離液１０中のジクロロメタンの揮発を抑制し、複合部材１１のリサイクルコストを低減できる。 By circulating the separated liquid 10 in the container 2, it becomes possible to generate a liquid flow of the separated liquid 10 in the container 2. Therefore, the flow of the separation liquid 10 can promote the separation of the metal material 111 and the resin material 112 in the composite member 11. Thereby, the separation efficiency and the separation accuracy of the metal material 111 and the resin material 112 in the composite member 11 can be improved, and the volatilization of dichloromethane in the separation liquid 10 is suppressed as compared with mechanical stirring, and the composite member 11 The recycling cost can be reduced.
また、分離液１０をろ過しながら使用するため、分離液１０の繰り返しの使用が可能となる。これにより、複合部材１１のリサイクルコストを低減できる。また、複合部材１１における金属材１１１と樹脂材１１２とを精度良く分離できるため、金属材１１１及び樹脂材１１２の再利用が十分に可能となり、複合部材１１のリサイクル効率を高めることができる。 Further, since the separated liquid 10 is used while being filtered, the separated liquid 10 can be repeatedly used. Thereby, the recycling cost of the composite member 11 can be reduced. Further, since the metal material 111 and the resin material 112 in the composite member 11 can be accurately separated, the metal material 111 and the resin material 112 can be sufficiently reused, and the recycling efficiency of the composite member 11 can be improved.
本実施形態の分離方法において、分離液１０は、ジクロロメタンである。そのため、複合部材１０における金属材１１１と樹脂材１１２とをさらに容易に、効率良く、かつ精度良く分離できる。また、容器２内の分離液１０をろ過しながら循環させることによる効果をより一層発揮できる。 In the separation method of the present embodiment, the separation liquid 10 is dichloromethane. Therefore, the metal material 111 and the resin material 112 in the composite member 10 can be separated more easily, efficiently, and accurately. Further, the effect of circulating the separated liquid 10 in the container 2 while filtering can be further exerted.
また、循環工程において、容器２内の分離液１０を容器２の上部から排出し、ろ過した分離液１０を容器２の下部から容器２内に供給する。そのため、分離液１０の液面上の浮遊物を容器２の上部から効率良く排出できる。また、容器２内において分離液１０の下から上への（上方への）液流を生じさせ、分離液１０中の沈殿物を下から上へと運んで容器２の上部から効率良く排出できる。これにより、分離液１０中の不純物を効率良くろ過できる。 In the circulation step, the separated liquid 10 in the container 2 is discharged from the upper part of the container 2, and the filtered separated liquid 10 is supplied from the lower part of the container 2 into the container 2. Therefore, the suspended matter on the liquid surface of the separated liquid 10 can be efficiently discharged from the upper portion of the container 2. Further, a liquid flow from the bottom to the top (upward) of the separation liquid 10 is generated in the container 2, and the precipitate in the separation liquid 10 can be carried from the bottom to the top and efficiently discharged from the upper part of the container 2. .. Thereby, the impurities in the separated liquid 10 can be efficiently filtered.
（第２実施形態）
本実施形態は、図４、図５に示すように、分離装置１の本体部２及び循環部３の構成を変更した例である。なお、第１実施形態と同様の構成及び作用効果については説明を省略する。
(Second embodiment)
This embodiment is an example in which the configurations of the main body portion 2 and the circulation portion 3 of the separation device 1 are changed, as shown in FIGS. 4 and 5. It should be noted that the description of the same configurations and effects as those of the first embodiment will be omitted.
容器２は、第１排出口（上部排出部）２４ａ、第２排出口（下部排出部）２４ｂ、第１供給口（下部供給部）２５ａ及び第２供給口（上部供給部）２５ｂを有する。第１排出口２４ａ及び第２供給口２５ｂは、容器２の本体部２１の上部に設けられている。第２排出口２４ｂ及び第１供給口２５ａは、容器２の本体部２１の下部に設けられている。 The container 2 has a first discharge port (upper discharge part) 24a, a second discharge port (lower discharge part) 24b, a first supply port (lower supply part) 25a, and a second supply port (upper supply part) 25b. The first discharge port 24a and the second supply port 25b are provided in the upper portion of the main body portion 21 of the container 2. The second outlet 24b and the first supply port 25a are provided in the lower portion of the main body portion 21 of the container 2.
循環部３は、第１主流通部３１、第２主流通部３２、第１副流通部３３及び第２副流通部３４を有する。第１主流通部３１は、容器２の第１排出口２４ａとろ過部５との間を接続する。第２主流通部３２は、ろ過部５と容器２の第１供給口２５ａとを接続する。第１副流通部３３は、容器２の第２排出口２４ｂと第１主流通部３１の途中とを接続する。第２副流通部３４は、容器２の第２供給口２５ｂと第２主流通部３２の途中とを接続する。 The circulation unit 3 includes a first main distribution unit 31, a second main distribution unit 32, a first sub distribution unit 33, and a second sub distribution unit 34. The first main circulation part 31 connects between the first outlet 24 a of the container 2 and the filtration part 5. The second main circulation unit 32 connects the filtration unit 5 and the first supply port 25a of the container 2. The first auxiliary flow section 33 connects the second outlet 24b of the container 2 and the middle of the first main flow section 31. The second auxiliary flow section 34 connects the second supply port 25b of the container 2 and the middle of the second main flow section 32.
第１主流通部３１において、容器２の第１排出口２４ａと第１副流通部３３が合流する部分との間には、第１バルブ３１１が設けられている。第２主流通部３２において、ろ過部５と第２副流通部３４が合流する部分との間には、ポンプ４が設けられている。また、第２副流通部３４が合流する部分と容器２の第１供給口２５ａとの間には、第３バルブ３２１が設けられている。第１副流通部３３には、第３バルブ３３１が設けられている。第２副流通部３４には、第４バルブ３４１が設けられている。 A first valve 311 is provided between the first discharge port 24 a of the container 2 and a portion where the first sub-circulation unit 33 merges in the first main circulation unit 31. In the second main flow section 32, the pump 4 is provided between the filter section 5 and the portion where the second sub flow section 34 merges. Further, a third valve 321 is provided between the portion where the second sub-circulation unit 34 joins and the first supply port 25a of the container 2. A third valve 331 is provided in the first sub flow unit 33. A fourth valve 341 is provided in the second auxiliary flow section 34.
循環部３の第１バルブ３１１、第２バルブ３２１、第３バルブ３３１及び第４バルブ３４１は、開閉を切り替えることにより、循環部３における分離液１０の流通及び遮断を切り替えることができる。 The first valve 311, the second valve 321, the third valve 331, and the fourth valve 341 of the circulation unit 3 can be switched between open and closed to switch between circulation and interruption of the separated liquid 10 in the circulation unit 3.
具体的には、図４に示すように、第１バルブ３１１及び第２バルブ３２１を「開」、第３バルブ３３１及び第４バルブ３４１を「閉」とすることにより、容器２内の分離液１０が容器２の第１排出口２４ａから排出される。そして、第１主流通部３１、ろ過部５、第２主流通部３２を順に流通し、容器２の第１供給口２５ａから容器２内に供給される（図４の実線矢印）。分離液１０がろ過部５を通過することにより、分離液１０中の不純物が除去される。 Specifically, as shown in FIG. 4, by separating the first valve 311 and the second valve 321 from “open” and the third valve 331 and the fourth valve 341 to “close”, the separated liquid in the container 2 can be obtained. 10 is discharged from the first discharge port 24a of the container 2. Then, it flows through the first main distribution unit 31, the filtration unit 5, and the second main distribution unit 32 in order, and is supplied into the container 2 from the first supply port 25a of the container 2 (solid arrow in FIG. 4). Impurities in the separated liquid 10 are removed as the separated liquid 10 passes through the filtration unit 5.
また、容器２内の分離液１０を容器２の第１排出口２４ａから排出し、容器２の第１供給口２５ａから容器２内に供給することを連続的に行い、容器２内の分離液１０を循環させることにより、容器２内において分離液１０の下から上への（上方への）液流が生じる（図４の点線矢印）。 Further, the separated liquid 10 in the container 2 is continuously discharged from the first discharge port 24a of the container 2 and supplied into the container 2 from the first supply port 25a of the container 2. By circulating 10 the liquid flow from the bottom to the top (up) of the separation liquid 10 in the container 2 (dotted arrow in FIG. 4).
一方、図５に示すように、第１バルブ３１１及び第２バルブ３２１を「閉」、第３バルブ３３１及び第４バルブ３４１を「開」とすることにより、容器２内の分離液１０が容器２の第２排出口２４ｂから排出される。そして、第１副流通部３３、第１主流通部３１、ろ過部５、第２主流通部３２、第２副流通部３４を順に流通し、容器２の第２供給口２５ｂから容器２内に供給される（図５の実線矢印）。分離液１０がろ過部５を通過することにより、分離液１０中の不純物が除去される。 On the other hand, as shown in FIG. 5, by setting the first valve 311 and the second valve 321 to “close” and the third valve 331 and the fourth valve 341 to “open”, the separated liquid 10 in the container 2 is stored in the container. It is discharged from the second second discharge port 24b. Then, the first sub-circulation unit 33, the first main circulation unit 31, the filtration unit 5, the second main circulation unit 32, and the second sub-circulation unit 34 are sequentially circulated, and the second supply port 25b of the container 2 is used to the inside of the container 2. (Solid arrow in FIG. 5). Impurities in the separated liquid 10 are removed as the separated liquid 10 passes through the filtration unit 5.
また、容器２内の分離液１０を容器２の第２排出口２４ｂから排出し、容器２の第２供給口２５ｂから容器２内に供給することを連続的に行い、容器２内の分離液１０を循環させることにより、容器２内において分離液１０の上から下への（下方への）液流が生じる（図５の点線矢印）。 Further, the separation liquid 10 in the container 2 is continuously discharged from the second discharge port 24b of the container 2 and supplied from the second supply port 25b of the container 2 to the separation liquid in the container 2. By circulating 10 the liquid flow from the top to the bottom (downward) of the separation liquid 10 in the container 2 (dotted arrow in FIG. 5).
本実施形態では、循環工程において、図４に示す第１循環工程と図５に示す第２循環工程とを繰り返し行う。また、主として第１循環工程を行い、定期的に（一定間隔で）第２循環工程を所定時間行う。第１循環工程及び第２循環工程を行う時間は、それぞれ適宜設定することができる。 In the present embodiment, in the circulation step, the first circulation step shown in FIG. 4 and the second circulation step shown in FIG. 5 are repeated. In addition, the first circulation process is mainly performed, and the second circulation process is periodically (at regular intervals) performed for a predetermined time. The time for performing the first circulation process and the second circulation process can be set appropriately.
本実施形態では、循環工程の一部において、容器２内の分離液１０を容器２の下部から排出し、ろ過した分離液１０を容器２の上部から容器２内に供給する。そのため、容器２内において分離液１０の上から下への（下方への）液流を生じさせることができる。本実施形態のように、容器２内において分離液１０の下から上への（上方への）液流と上から下への（下方への）液流とを交互に生じさせ、分離液１０のろ過効率を高めることができる。 In the present embodiment, in a part of the circulation process, the separated liquid 10 in the container 2 is discharged from the lower part of the container 2, and the filtered separated liquid 10 is supplied from the upper part of the container 2 into the container 2. Therefore, a liquid flow from the top to the bottom (downward) of the separated liquid 10 can be generated in the container 2. As in the present embodiment, in the container 2, the liquid flow from the bottom to the upper part (upward) of the separation liquid 10 and the liquid flow from the top to the lower part (downward) are alternately generated. The filtration efficiency of can be improved.
（その他の実施形態）
本発明は、上記実施形態に何ら限定されるものではなく、本発明を逸脱しない範囲において種々の態様で実施しうることはいうまでもない。
(Other embodiments)
It is needless to say that the present invention is not limited to the above-described embodiment and can be carried out in various modes without departing from the present invention.
（１）複合部材の金属材を構成する金属材料としては、例えば、鉄、銅、アルミニウム、これらの合金等が挙げられる。また、鉄合金としては、例えばステンレス鋼等が挙げられる。 (1) Examples of the metal material forming the metal material of the composite member include iron, copper, aluminum and alloys thereof. Examples of iron alloys include stainless steel.
（２）複合部材の樹脂材を構成する樹脂材料としては、例えば、ポリ塩化ビニル（ＰＶＣ）、ポリエチレン（ＰＥ）、ポリプロピレン（ＰＰ）、ポリスチレン（ＰＳ）等の汎用プラスチック等が挙げられる。 (2) Examples of the resin material forming the resin material of the composite member include general-purpose plastics such as polyvinyl chloride (PVC), polyethylene (PE), polypropylene (PP) and polystyrene (PS).
（３）上記実施形態では、複合部材を分離液に浸漬する分離工程を行っている間、容器内の分離液をろ過しながら循環させる循環工程を行ったが、例えば、分離工程の一部において循環工程を行うようにしてもよい。 (3) In the above-described embodiment, while performing the separation step of immersing the composite member in the separation liquid, the circulation step of circulating the separation liquid in the container while filtering is performed. For example, in a part of the separation step, You may make it perform a circulation process.
（４）上記実施形態では、分離液は、ジクロロメタンである。なお、ジクロロメタンには、酸化防止等の安定剤として微量のアルコール等が添加されていてもよい。分離液において、ジクロロメタンの含有量は９９質量％以上であることが好ましい。 (4) In the above embodiment, the separated liquid is dichloromethane. A small amount of alcohol or the like may be added to dichloromethane as a stabilizer for preventing oxidation. The content of dichloromethane in the separated liquid is preferably 99% by mass or more.
（５）上記実施形態では、分離液を収容する容器として、円筒状の容器を縦向きに配置して用いたが、例えば円筒状の容器を横向きに配置し、その容器を軸回りに回転可能に構成した、いわゆるドラム式容器を用いてもよい。この場合、分離工程では、容器に収容された分離液に複合部材を浸漬し、容器を軸回りに回転させ、金属材と樹脂材とを分離する。また、分離工程では、上記実施形態のように、容器内の分離液をろ過しながら循環させる循環工程を行ってもよい。ドラム式容器を用いることにより、少ない分離液で金属材と樹脂材とを容易に、効率良く、かつ精度良く分離できる。これにより、複合部材のリサイクルコストを低減でき、複合部材のリサイクル効率を高めることができる。 (5) In the above-described embodiment, a cylindrical container is used by vertically arranging it as a container for containing the separated liquid. However, for example, a cylindrical container is arranging horizontally and the container can be rotated around its axis. A so-called drum type container configured as described above may be used. In this case, in the separation step, the composite member is immersed in the separation liquid contained in the container and the container is rotated around the axis to separate the metal material and the resin material. Further, in the separation step, as in the above embodiment, a circulation step of circulating the separated liquid in the container while filtering may be performed. By using the drum type container, the metal material and the resin material can be easily, efficiently, and accurately separated with a small amount of separation liquid. Thereby, the recycling cost of the composite member can be reduced, and the recycling efficiency of the composite member can be improved.
（６）上記実施形態では、分離液をろ過するろ過部のろ材としてバグフィルタを用いたが、ろ材としては分離液中の不純物をろ過できるものであればよく、例えばメッシュ（網目）フィルタ等の各種フィルタを用いることができる。 (6) In the above-described embodiment, the bag filter is used as the filter medium of the filtering unit that filters the separated liquid, but the filter medium may be any one that can filter impurities in the separated liquid, such as a mesh (mesh) filter. Various filters can be used.
（７）上記実施形態における１つの構成要素が有する機能を複数の構成要素として分散させたり、複数の構成要素が有する機能を１つの構成要素に統合したりしてもよい。また、上記実施形態の構成の一部を省略してもよい。また、上記実施形態の構成の少なくとも一部を、他の上記実施形態の構成に対して付加、置換等してもよい。なお、特許請求の範囲に記載の文言から特定される技術思想に含まれるあらゆる態様が本発明の実施形態である。 (7) The functions of one constituent element in the above-described embodiment may be distributed as a plurality of constituent elements, or the functions of a plurality of constituent elements may be integrated into one constituent element. Moreover, you may omit a part of structure of the said embodiment. Further, at least a part of the configuration of the above embodiment may be added to or replaced with the configuration of the other above embodiment. In addition, all aspects included in the technical idea specified by the wording of the claims are the embodiments of the present invention.
１…分離装置、２…容器、３…循環部、５…ろ過部、１０…分離液、１１…複合部材、２４…排出部、２５…供給部、１１１…金属材、１１２…樹脂材
DESCRIPTION OF SYMBOLS 1... Separation device, 2... Container, 3... Circulation part, 5... Filtration part, 10... Separation liquid, 11... Composite member, 24... Discharge part, 25... Supply part, 111... Metal material, 112... Resin material
Claims (8)
容器に収容されたジクロロメタンを含む分離液に前記複合部材を浸漬し、前記金属材と前記樹脂材とを分離する分離工程を備え、
前記分離工程の少なくとも一部において、前記容器内の前記分離液を排出し、排出した前記分離液をろ過し、ろ過した前記分離液を前記容器内に供給することにより、前記容器内の前記分離液をろ過しながら循環させる循環工程を行う、複合部材の分離方法。 For a composite member comprising a metal material and a resin material that covers at least a part of the metal material, a method for separating the composite material that separates the metal material and the resin material,
Dipping the composite member in a separation liquid containing dichloromethane contained in a container, and comprising a separation step of separating the metal material and the resin material,
In at least a part of the separation step, the separated liquid in the container is discharged, the discharged separated liquid is filtered, and the filtered separated liquid is supplied into the container to separate the separated liquid in the container. A method for separating a composite member, comprising performing a circulation step of circulating a liquid while filtering it.
ジクロロメタンを含む分離液を収容する容器と、
前記容器に設けられ、前記容器内の前記分離液を排出する排出部と、
前記容器に設けられ、前記分離液を前記容器内に供給する供給部と、
前記排出部と前記供給部とを接続する循環部と、
前記循環部に設けられ、前記分離液をろ過するろ過部と、を備える、複合部材の分離装置。 A composite member comprising a metal material and a resin material coating at least a part of the metal material, a separation device of the composite member for separating the metal material and the resin material,
A container containing a separated liquid containing dichloromethane,
A discharge part provided in the container for discharging the separated liquid in the container,
A supply unit provided in the container, for supplying the separated liquid into the container,
A circulation unit that connects the discharge unit and the supply unit,
A separation device for a composite member, comprising: a filtration unit that is provided in the circulation unit and that filters the separated liquid.
The composite member according to claim 7, wherein the discharge unit further includes a lower discharge unit provided at a lower portion of the container, and the supply unit further includes an upper supply unit provided at an upper portion of the container. Separation device.
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| JP2001000946A (en) * | 1999-06-22 | 2001-01-09 | Toray Eng Co Ltd | Device for recovering polyvinyl chloride |
| JP2004182746A (en) * | 2002-11-29 | 2004-07-02 | Victor Co Of Japan Ltd | Recovery method for thermoplastic resin |
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