JPH01249310A - Reclaimer for plastic powdery body - Google Patents
Reclaimer for plastic powdery bodyInfo
- Publication number
- JPH01249310A JPH01249310A JP63077272A JP7727288A JPH01249310A JP H01249310 A JPH01249310 A JP H01249310A JP 63077272 A JP63077272 A JP 63077272A JP 7727288 A JP7727288 A JP 7727288A JP H01249310 A JPH01249310 A JP H01249310A
- Authority
- JP
- Japan
- Prior art keywords
- plastic
- mixture
- storage tank
- powdery body
- powder
- 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
Links
- 239000000843 powder Substances 0.000 claims abstract description 46
- 239000012535 impurity Substances 0.000 claims abstract description 24
- 239000000203 mixture Substances 0.000 claims abstract description 22
- 238000004064 recycling Methods 0.000 claims description 14
- 230000008929 regeneration Effects 0.000 claims 1
- 238000011069 regeneration method Methods 0.000 claims 1
- 238000011084 recovery Methods 0.000 abstract description 5
- 230000005484 gravity Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 230000007246 mechanism Effects 0.000 description 21
- 239000002245 particle Substances 0.000 description 18
- 239000011248 coating agent Substances 0.000 description 8
- 238000000576 coating method Methods 0.000 description 8
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000007885 magnetic separation Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
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
- B29B17/02—Separating plastics from other materials
-
- 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
- B29B17/02—Separating plastics from other materials
- B29B2017/0213—Specific separating techniques
- B29B2017/0217—Mechanical separating techniques; devices therefor
- B29B2017/0234—Mechanical separating techniques; devices therefor using gravity, e.g. separating by weight differences in a wind sifter
-
- 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
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/065—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts containing impurities
-
- 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
- Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
-
- 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)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は非磁性不純物を除去するためのプラスチック粉
体再生装置に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a plastic powder recycling apparatus for removing non-magnetic impurities.
一般に粉体塗装に使用されるプラスチック粉体は、リサ
イクル機構を有する塗装装置により再循環使用され、消
費された量だけ新しいプラスチック粉体を補充するよう
にしている。しかしながら、使用後に再循環された粉体
には、被塗装物に付着した磁性不純物および非磁性不純
物が混入している。また、熱影響により再循環プラスチ
ック粉体は粒子の粗大化が徐々に進行する。Generally, plastic powder used in powder coating is recycled by a coating device having a recycling mechanism, and new plastic powder is replenished in the amount that is consumed. However, the powder recycled after use is contaminated with magnetic and non-magnetic impurities that have adhered to the object to be coated. Furthermore, due to the influence of heat, the particles of recycled plastic powder gradually become coarser.
これらの不純物および粗大プラスチック粒子が混在した
粉体を再使用すると、被塗装物の塗装膜表面の外観低下
および性状低下を引き起こす可能性があるので、再使用
される粉体からこれらの不純物および粗大プラスチック
粒子を除去しなければならない。Reusing powder mixed with these impurities and coarse plastic particles may cause a deterioration in the appearance and properties of the coating film surface of the object being painted, so these impurities and coarse plastic particles may be removed from the reused powder. Plastic particles must be removed.
（従来の技術）
従来は、粉体塗装装置内に粗大プラスチック粒子除去用
の粒度選別機構および磁性不純物除去用の磁気選別機構
を組み込むとともに、定期的に全量を回収して粒度選別
および磁気選別を行っていｔこ 。(Conventional technology) Conventionally, a particle size sorting mechanism for removing coarse plastic particles and a magnetic sorting mechanism for removing magnetic impurities were built into powder coating equipment, and the entire amount was periodically collected and subjected to particle size sorting and magnetic sorting. Let's go.
（発明が解決しようとする課題）
従来の方式では、使用済みの粉体から粗大プラスチック
粒子および磁性不純物を除去することばできるが、非磁
性不純物は除去されないまま再使用される粉体に混在す
ることになる。(Problems to be Solved by the Invention) With conventional methods, coarse plastic particles and magnetic impurities can be removed from used powder, but non-magnetic impurities remain unremoved and remain mixed in reused powder. become.
したがって、使用済みの粉体からの非磁性不純物の除去
が未解決の課題となっている。Therefore, removal of non-magnetic impurities from used powder remains an unsolved problem.
（課題を解決するだめの手段）
本発明によれば、上記課題を解決するため、非磁性不純
物を除去するためのプラスチック粉体再生装置であって
、使用済みのプラスチック粉体および非磁性不純物の混
合物を収容する貯蔵槽と、該貯蔵槽に連結され、該貯蔵
槽内で前記混合物を流動させるための送風装置と、前記
貯蔵槽に連結され、該貯蔵槽内で流動せしめられた前記
混合物の上部流動層をなすプラスチック粉体を吸引回収
するための回収装置とを備えたプラスチック粉体再生装
置が提供される。(Means for Solving the Problems) According to the present invention, in order to solve the above problems, there is provided a plastic powder recycling device for removing non-magnetic impurities, which a storage tank containing a mixture; a blower device connected to the storage tank for causing the mixture to flow within the storage tank; and a blower device connected to the storage tank for causing the mixture to flow within the storage tank. A plastic powder recycling apparatus is provided, which includes a recovery device for suctioning and recovering plastic powder forming an upper fluidized bed.
（作 用）
本発明のプラスチック粉体再生装置により非磁性不純物
を除去するためには、回収された使用済みのプラスチッ
ク粉体および非磁性不純物の混合物を貯蔵槽に収容する
とともに、送風装置にょう該貯蔵槽内でこの混合物を流
動させ、プラスチック粉体と非磁性不純物との比重差に
より流動せしめられた混合物の上部流動層をなしている
プラスチック粉体のみを回収装置によって吸引回収する
。(Function) In order to remove non-magnetic impurities with the plastic powder recycling apparatus of the present invention, a mixture of the collected used plastic powder and non-magnetic impurities is stored in a storage tank, and a blower is installed. This mixture is fluidized in the storage tank, and only the plastic powder forming the upper fluidized layer of the fluidized mixture is collected by suction by a collection device due to the difference in specific gravity between the plastic powder and the non-magnetic impurities.
（実施例）
図は、本発明のプラスチック粉体再生装置の一実施例を
粒度選別機構および磁気選別機構とともに示ず概略正面
図である。本発明のプラスチック粉体再生装置は、粒度
選別機構および磁気選別機構を経て粗大プラスチン゛り
粒子および磁性不純物を除去された使用済み混合物を対
象とするのが好ましく、シたがって図示実施例ではこれ
らの機構と連結されて構成されている。(Embodiment) The figure is a schematic front view of an embodiment of the plastic powder recycling apparatus of the present invention, not showing the particle size sorting mechanism and the magnetic sorting mechanism. The plastic powder recycling apparatus of the present invention is preferably intended for used mixtures from which coarse plastic particles and magnetic impurities have been removed through a particle size sorting mechanism and a magnetic sorting mechanism. It is connected to the mechanism of
１は上段に１ａ＋ｍ角のステンレス製網目を取り付け、
下段に０．７ｍｍ角のステンレス製網目を取り付けた粒
度選別機構である。それぞれのステンレス製網目は振動
可能とされている。２および３はそれぞれ１０００ない
し１５００ガウスの磁気能力を有する磁気選別機構であ
る。使用済みの回収された粉体混合物は、粒度選別機構
１に送り込まれて粗大化したプラスチック粒子を除去さ
れる。1 has a 1a+m square stainless steel mesh attached to the upper tier,
This is a particle size sorting mechanism with a 0.7 mm square stainless steel mesh attached to the lower stage. Each stainless steel mesh can vibrate. 2 and 3 are magnetic separation mechanisms each having a magnetic capacity of 1000 to 1500 Gauss. The used and collected powder mixture is sent to a particle size sorting mechanism 1 to remove coarse plastic particles.
次に混合物は磁気選別機構２．３を通過することにより
磁性不純物を除去される。このようにしてプラスチック
粉体と非磁性不純物とになった混合物は、いったん室４
に落下して貯蔵された後、吸引装置５によりホッパ６に
移される。The mixture is then passed through a magnetic separation mechanism 2.3 to remove magnetic impurities. The mixture of plastic powder and non-magnetic impurities is then stored in the chamber 4.
After falling and being stored, it is transferred to a hopper 6 by a suction device 5.
７は本発明のプラスチック粉体再生装置を構成する貯蔵
槽であり、ホッパ６内の混合物はバルブ８の操作により
常に一定量が貯蔵槽７内に収容されるように該貯蔵槽７
へと送り込まれる。貯蔵槽７は、多数の通気孔を有する
板９を備えている。Reference numeral 7 denotes a storage tank constituting the plastic powder recycling apparatus of the present invention, and the mixture in the hopper 6 is stored in the storage tank 7 so that a constant amount of the mixture is always stored in the storage tank 7 by operating a valve 8.
sent to. The storage tank 7 is equipped with a plate 9 having a large number of ventilation holes.
貯蔵Ｎ７には送風装置１０が連結されており、該送風装
置１０は貯蔵槽７内に空気を吹き込み、板９の通気孔を
介して貯蔵槽７内に収容された混合物に作用し、これを
流動させる。送風袋Ｒ１０による空気吹き込み量を制御
し、流動倍率（粉体が流動状態になったときの粉体貯蔵
高さを、粉体が流動していないときの粉体貯蔵高さで除
した値）が１．２ないし１．３程度になるようにするこ
とが好ましい。混合物をｖＩ４ｔ、するプラスチック粉
体と非磁性不純物とでは、プラスチック粉体の方が比重
が小さいので、貯蔵槽７内で流動せしめられた混合物の
上部流動層はプラスチック粉体で占められ、下部流動層
は非磁性不純物で占められる。A blower device 10 is connected to the storage N7, and the blower device 10 blows air into the storage tank 7, acts on the mixture contained in the storage tank 7 through the ventilation holes in the plate 9, and blows the air into the storage tank 7. Let it flow. The amount of air blown by the air bag R10 is controlled, and the flow magnification (the value obtained by dividing the powder storage height when the powder is in a fluid state by the powder storage height when the powder is not flowing) is preferably about 1.2 to 1.3. Since the plastic powder has a smaller specific gravity than the non-magnetic impurities that make the mixture vI4t, the upper fluidized layer of the mixture fluidized in the storage tank 7 is occupied by the plastic powder, and the lower fluidized layer is occupied by the plastic powder. The layer is populated with non-magnetic impurities.
１１は吸引ノズルであり、吸引装置１２とともに回収装
置を構成する。貯蔵槽７内の上部流動層をなすプラスチ
ック粉体は吸引装置１２の作用により吸引ノズル１１か
ら吸引され、ホッパ１３内に移される。ホッパ１３内の
プラスチック粉体はバルブ１４を介して回収容器１５へ
と回収される。11 is a suction nozzle, which together with the suction device 12 constitutes a recovery device. The plastic powder forming the upper fluidized bed in the storage tank 7 is suctioned from the suction nozzle 11 by the action of the suction device 12 and transferred into the hopper 13 . The plastic powder in the hopper 13 is collected into a collection container 15 via a valve 14.
本発明によるプラスチック粉体再生装置は、図示実施例
のように、粒度選別機構および磁気選別機構に連結して
使用されることが望ましいが、これらの機構と切り離し
て単独で使用することもできる。Although the plastic powder recycling apparatus according to the present invention is preferably used in conjunction with a particle size sorting mechanism and a magnetic sorting mechanism as in the illustrated embodiment, it can also be used independently from these mechanisms.
また、本発明のプラスチック粉体再生装置は、粒度選別
機構および磁気選別機構とともに粉体塗装装置内に組み
込んで使用してもよいし、該塗装装置とは切り離した装
置として使用してもよい。Furthermore, the plastic powder recycling apparatus of the present invention may be used by being incorporated into a powder coating apparatus together with a particle size sorting mechanism and a magnetic sorting mechanism, or may be used as a separate apparatus from the coating apparatus.
（発明の効果）
本発明のプラスチック粉体再生装置によれば、使用済み
の粉体の中から非磁性不純物を有効に除去することがで
きる。したがって、純粋なプラスチック粉体のみを粉体
塗装用に再使用でき、被塗装物の塗膜表面に悪影響を与
えることを避けることができる。(Effects of the Invention) According to the plastic powder recycling apparatus of the present invention, non-magnetic impurities can be effectively removed from used powder. Therefore, only pure plastic powder can be reused for powder coating, and adverse effects on the coating surface of the object to be coated can be avoided.
図は本発明によるプラスチック粉体再生装置の一実施例
を粒度選別機構および磁気選別機構とともに示す概略正
面図である。
１：粒度選別機構 ２．３：磁気選別機構４：室
５：吸引装置
６：ホッパ ７：貯蔵槽
８：バルブ ９：板
１０：送風装置 １１：吸引ノズル１２：吸引装置
１３：ホッパ
１４：バルブ １５：回収容器
手続補正書（方式）
１、事件の表示
昭和６３年特許願第 ７７２７２ 号プラスチック粉
体再生装置
３補正をする者
事件との関係 出 願 人
住所
名 称 （２１１）住友金属工業株式会社４代理人
５、補正命令の日付 昭和６６年 ６月２８日（発送
臼）第１ 図The figure is a schematic front view showing an embodiment of the plastic powder recycling apparatus according to the present invention together with a particle size sorting mechanism and a magnetic sorting mechanism. 1: Particle size sorting mechanism 2.3: Magnetic sorting mechanism 4: Chamber
5: Suction device 6: Hopper 7: Storage tank 8: Valve 9: Plate 10: Blower device 11: Suction nozzle 12: Suction device 13: Hopper 14: Valve 15: Recovery container procedure amendment (method) 1. Indication of incident Relationship to Patent Application No. 77272 of 1988 Plastic Powder Recycling Apparatus 3 Amendment Case Applicant Address Name (211) Sumitomo Metal Industries Co., Ltd. 4 Agent 5 Date of Amendment Order June 1988 28th (Shipping mortar) Figure 1
Claims (1)
置であって、使用済みのプラスチック粉体および非磁性
不純物の混合物を収容する貯蔵槽と、該貯蔵槽に連結さ
れ、該貯蔵槽内で前記混合物を流動させるための送風装
置と、前記貯蔵槽に連結され、該貯蔵槽内で流動せしめ
られた前記混合物の上部流動層をなすプラスチック粉体
を吸引回収するための回収装置とを備えたプラスチック
粉体再生装置。A plastic powder recycling apparatus for removing non-magnetic impurities, the apparatus comprising: a storage tank containing a mixture of used plastic powder and non-magnetic impurities; and a collection device connected to the storage tank to suck and collect the plastic powder forming the upper fluidized layer of the mixture fluidized in the storage tank. Body regeneration device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63077272A JPH01249310A (en) | 1988-03-30 | 1988-03-30 | Reclaimer for plastic powdery body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63077272A JPH01249310A (en) | 1988-03-30 | 1988-03-30 | Reclaimer for plastic powdery body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01249310A true JPH01249310A (en) | 1989-10-04 |
Family
ID=13629218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63077272A Pending JPH01249310A (en) | 1988-03-30 | 1988-03-30 | Reclaimer for plastic powdery body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01249310A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0594307A1 (en) * | 1992-10-19 | 1994-04-27 | Davidson Textron Inc. | Method for recovering PVC and urethane foam from commingled trim waste using elutriators |
| KR20010060612A (en) * | 1999-12-27 | 2001-07-07 | 이계안 | Plastic ingredient separator |
-
1988
- 1988-03-30 JP JP63077272A patent/JPH01249310A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0594307A1 (en) * | 1992-10-19 | 1994-04-27 | Davidson Textron Inc. | Method for recovering PVC and urethane foam from commingled trim waste using elutriators |
| KR20010060612A (en) * | 1999-12-27 | 2001-07-07 | 이계안 | Plastic ingredient separator |
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