JP4009206B2 - Waste plastic cleaning equipment and cleaning / dehydration equipment - Google Patents

Waste plastic cleaning equipment and cleaning / dehydration equipment Download PDF

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Publication number
JP4009206B2
JP4009206B2 JP2003006798A JP2003006798A JP4009206B2 JP 4009206 B2 JP4009206 B2 JP 4009206B2 JP 2003006798 A JP2003006798 A JP 2003006798A JP 2003006798 A JP2003006798 A JP 2003006798A JP 4009206 B2 JP4009206 B2 JP 4009206B2
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Prior art keywords
cleaning
casing
waste plastic
plastic
mud
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JP2004216280A (en
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昭雄 青木
廣彬 上野
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KYORITSU INDUSTRY CO., LTD.
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KYORITSU INDUSTRY CO., LTD.
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    • 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
    • B29B2017/0286—Cleaning means used for separation
    • B29B2017/0289—Washing the materials in liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2007/00—Flat articles, e.g. films or sheets
    • B29L2007/008—Wide strips, e.g. films, webs
    • 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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  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Cleaning In General (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Description

【０００１】
【発明の属する技術分野】
本発明は、廃棄プラスチックに付着した泥、砂等を洗浄する洗浄装置に関する。
【０００２】
【従来の技術】
近年廃棄プラスチックを回収し、回収プラスチックを再生利用可能な資源に転化することが行われている。廃棄プラスチックを再資源化するにあたって、廃棄プラスチックを洗浄して、砂、泥等の異物が除去される。
【０００３】
廃棄プラスチックのうち、特に農業用ビニールハウスで使用された廃棄農業用プラスチックフィルム、又は掘り起したプラスチックフィルムには多量の泥、砂が付着している。従来、このようなプラスチックフィルムを洗浄する方法として、水にプラスチックフィルムを浸漬し、洗濯機の原理で洗浄する方法が採用されていた。
【０００４】
【発明が解決しようとする課題】
しかし、洗濯機の原理で洗浄する方法では、装置が大型になり、また水を多量に使うので、泥の量も多く、水処理が大変になる。特に泥等の細かい粒子は沈殿し難いため、凝集剤の投与が必要になるだけでなく、沈殿した汚泥の廃棄も問題になる。また長物のフィルムがからみつくという問題も生じる。
【０００５】
このため、水処理を必要としない乾式洗浄が理想であるが、農業用プラスチックフィルム等のプラスチックフィルムは、湿っている場合、泥、砂等がべったりこびりついていることが多い。このため乾式洗浄の場合、まず乾燥が必要となる他、湿式洗浄に比べて、洗浄度が格段に落ちる。
【０００６】
洗浄の実用上の問題は如何に少量の水で泥、砂を落とすかにあると思われる。少量の水、すなわち泥、砂の濃度が高い場合、沈殿等が省略されるため、水処理が効率的になるからである。
【０００７】
また湿式洗浄共通の課題として、洗浄後のフィルムの乾燥がある。現在、遠心分離法が利用されているが、遠心分離機に入れて乾燥し、取り出すというバッチ的な処理になるので、効率が悪い。
【０００８】
そこで本発明は、廃棄プラスチックの砂、泥等を効率的に洗浄することができる廃棄プラスチックの洗浄装置を提供することを目的とする。
【０００９】
【課題を解決するための手段】
本発明は、上記目的を達成するためになされたものであって、請求項１に記載の発明は、軸の回りに回転しうる少なくとも一つのパドルと、前記パドルが収容され、前記軸の軸線方向における一端側に投入口を他端側に排出口を有するケーシングと、前記ケーシングに設けられ、前記パドルの回転に伴って、廃棄プラスチックを前記投入口から前記排出口に向かって移動させるガイドブレードと、回転する前記パドルの周囲又は周囲の一部に設けられ、メッシュ、多孔、又はスリットを有するスクリーンとを備え、前記ケーシングに、前記パドルの回転に伴って廃棄プラスチックを切断しうる固定刃を設けることに特徴を有するものである。
【００１０】
請求項２に記載の発明は、請求項１に記載の発明において、前記ケーシングに、廃棄プラスチックに散水する散水機構を設けることに特徴を有するものである。
【００１１】
請求項３に記載の発明は、請求項１又は２に記載の発明において、前記ケーシングは、水を排出する第１の排出口、及び泥、砂等を排出する第２の排出口を有し、前記ケーシング内に、水と泥、砂等とを分離・排出するスクリュコンベヤを設けることに特徴を有するものである。
【００１２】
請求項４に記載の発明は、請求項１から３の何れか１つに記載の洗浄装置を直列に２台使用し、１台目で洗浄を行い、２台目で前記散水機構により廃棄プラスチックに散水することなく脱水を行うことに特徴を有するものである。
【００１４】
【作用】
投入口から投入された廃棄プラスチック（例えば被洗浄フィルム）は、回転するパドルにより、ケーシングの内面及びメッシュ、多孔、スリットを有するスクリーンに押し付けられ、これらとの摩擦により表面に付いている土砂、泥がこすりとられる。廃棄プラスチックはガイドブレードにより軸線方向に移動される。このとき廃棄プラスチックは、ガイドブレードに一部が引掛かり、ケーシング内部で撹拌され、これによりケーシング内面に新しい被洗浄面が形成される。またメッシュ、多孔、又はスリットを有するスクリーンは、廃棄プラスチックとの摩擦により常に目詰まりが解消される。
【００１５】
【発明の実施の形態】
図１は本発明の一実施形態における洗浄装置の斜視図を示す。この洗浄装置には、廃棄農業用プラスチックフィルム、掘り起したプラスチックフィルム等の砂、泥等の異物が付着した廃棄プラスチック（以下汚れプラスチックという）が投入される。これらの汚れプラスチックは長尺なのであらかじめ破砕機によって破砕される。汚れプラスチックは投入口１から投入され、洗浄された後、排出口２から排出される。
【００１６】
基礎フレーム３には、横型円筒のケーシング４がその軸線を水平方向に向けた状態で配置される。ケーシング４の上部の軸線方向の一端側には、汚れプラスチックが投入される投入口１が形成され、他端側には、洗浄されたプラスチックが排出される排出口２が形成される。またケーシング４の下部の軸線方向の一端側には、散水された水を排出する第１の排出口５が形成され、他端側には泥、砂等を排出する第２の排出口６が形成される。
【００１７】
図２乃至図４は洗浄装置の断面図を示す。図２はパドル７が固定される軸８の軸線に直交する鉛直面内での断面図を示し、図３及び図４はパドル７が固定される軸８の軸線に沿った鉛直面内での断面図を示す。ケーシング４には、水平方向に伸びる軸８が回転可能に支持される。軸８の回りには、放射状に複数の（この実施形態では例えば２枚の）パドル７，７が固定される。パドル７，７は、図３にも示すように、矩形の板状に形成され、ケーシング４内の軸８の略全長に渡って固定されている。軸８が図示しない駆動装置によって回転駆動され、これによりパドル７，７が軸８の回りに回転される。なおこの実施形態では、パドル７，７は、軸８の軸線に対して、傾けられることなく実質的に平行な面内に位置するように軸８に取り付けられているが、汚れプラスチックを軸線方向により移動させ易くするために、軸線に対して僅かに傾けられた状態で軸８に取り付けられても良い。
【００１８】
ケーシング４内のパドル７，７の下方には、回転するパドル７，７外周の円形状の軌跡に形状を合わせた断面半円弧状のスクリーン１０が設けられる。このスクリーン１０はメッシュからなり、回転するパドル７，７に干渉しないように、パドル７，７の外周の軌跡から所定の隙間を空けて配置される。この実施形態では、スクリーン１０は、回転するパドル７，７の周囲の一部（すなわち下側の半分）に設けられているが、周囲の全体に設けられてもよい。またスクリーン１０は、メッシュ以外に、多孔又はスリットを有するプレートから構成されてもよい。
【００１９】
図２及び図４に示すように、ケーシング４の内面には、複数のパドル７，７の回転に伴って、汚れプラスチックを投入口１から排出口２に向かって移動させる複数のガイドブレード１１…が設けられる。ガイドブレード１１…は、汚れプラスチックを軸線方向に移動できるように、鉛直面に対して所定角度傾けられている。また図２に示すように、軸８の軸線方向から見たガイドブレード１１…は、回転するパドル７，７の外周の軌跡に合わせた円弧形状をなし、また回転するパドル７、７に干渉しないようにパドル７，７から所定の隙間を空けて配置されている。
【００２０】
図２に示すように、ケーシング４の内面には固定刃１５が設けられる。この固定刃１５は、パドル７，７によって回転される汚れプラスチックをせん断力によって切断する。
【００２１】
図４に示すように、ガイドブレード１１…間には、ケーシング４内に投入された汚れプラスチックに散水する散水機構１２…が設けられる。散水機構１２…は散水パイプ１３（図２参照）に接続される。
【００２２】
図２及び図３に示すように、ケーシング４内のパドル７，７の下方には、水と泥、砂等を分離排出するスクリュコンベヤ１４が設けられる。スクリュコンベヤ１４は、その軸線が軸８の軸線と平行で、且つその周囲に螺旋状の案内羽根を設けた構造になっている。
【００２３】
投入口１から投入された汚れプラスチックは、回転するパドル７，７により、ケーシング４の内面及びメッシュからなるスクリーン１０に押し付けられる。汚れプラスチックは、これらとの摩擦により表面に付いている土砂、泥がこすりとられる。またパドル７，７の回転に伴い、汚れプラスチックはガイドブレード１１…により軸線方向に移動される。このとき汚れプラスチックは、ガイドブレード１１…に一部が引掛かり、ケーシング４の内部で撹拌され、これによりケーシング４の内面に新しい被洗浄面が形成される。ケーシング４の内面に固定刃１５を設けると、長物がひきちぎられるので、回転するパドル７，７への汚れプラスチックがからみつくことがない。またメッシュ、多孔、スリットを有するスクリーン１０は、汚れプラスチックとの摩擦により常に目詰まりが解消される。
【００２４】
また散水機構１２…からの少量の散水により、物理的にこすられ、剥ぎ取られた砂、泥、及び剥がれ易くなった砂、泥は、洗い流され、遠心力によりスクリーン１０の孔から排出される。
【００２５】
砂、泥等が剥ぎ取られたプラスチックは、ケーシング４の排出口２まで移動し、排出口２から排出される。一方、スクリーン１０の孔から排出された水、砂、泥等は、スクリュコンベヤ１４によって水と砂、泥等に分離される。分離された水は第１の排出口５から排出され、砂、泥等は第２の排出口６から排出される。
【００２６】
また上記洗浄装置を直列に２台使用し、１台目で洗浄を行い、２台目で脱水を行っても良い。この場合、１台目の洗浄装置では、上述したように汚れプラスチックの洗浄を行なう。そして、１台目の洗浄装置の排出口から排出された洗浄後のプラスチックは、２台目の洗浄装置の投入口に投入される。２台目の洗浄装置では、プラスチックに散水することなく、パドルを回転させて、プラスチックの脱水を行う。
【００２７】
なお本発明の洗浄装置は、廃棄農業用プラスチックフィルム、掘り起したプラスチックフィルム等の廃棄プラスチックフィルムを洗浄するのに限られることなく、家庭から排出される容器包装プラスチックフィルム、あるいはフィルム以外のボトル等の固形プラスチックを洗浄するのに用いられても良い。
【００２８】
【発明の効果】
以上説明したように、本発明の洗浄装置は、極めてシンプルな構造のため、堅牢、安価、且つ従来法に対して大幅な小型化も可能になり、実用性に優れている。
【図面の簡単な説明】
【図１】本発明の一実施形態における洗浄装置を示す斜視図。
【図２】洗浄装置の断面図（軸の軸線に直交する鉛直面内での断面図）。
【図３】洗浄装置の断面図（軸の軸線に沿った鉛直面内での断面図）。
【図４】洗浄装置の断面図（軸の軸線に沿った鉛直面内での断面図）。
【符号の説明】
１…投入口
２…排出口
４…ケーシング
５…第１の排出口
６…第２の排出口
７…パドル
８…軸
１０…スクリーン
１１…ガイドブレード
１５…固定刃
１２…散水機構
１４…スクリュコンベヤ[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cleaning apparatus for cleaning mud, sand, and the like attached to waste plastic.
[0002]
[Prior art]
In recent years, waste plastics are collected, and the collected plastics are converted into recyclable resources. In recycling the waste plastic, the waste plastic is washed to remove foreign matters such as sand and mud.
[0003]
A large amount of mud and sand adhere to the plastic film for waste agriculture used in the agricultural greenhouse, or the plastic film dug up among the plastic wastes. Conventionally, as a method of washing such a plastic film, a method of immersing the plastic film in water and washing it on the principle of a washing machine has been adopted.
[0004]
[Problems to be solved by the invention]
However, in the washing method based on the principle of a washing machine, the apparatus becomes large and uses a large amount of water, so the amount of mud is large and the water treatment becomes difficult. In particular, since fine particles such as mud are difficult to settle, not only does it require administration of a flocculant, but also disposal of the precipitated sludge becomes a problem. There is also a problem that long films are entangled.
[0005]
For this reason, dry cleaning that does not require water treatment is ideal, but when plastic films such as agricultural plastic films are wet, mud, sand, etc. are often sticky or stuck. For this reason, in the case of dry cleaning, first, drying is required, and the degree of cleaning is greatly reduced as compared with wet cleaning.
[0006]
The practical problem of washing seems to be how to remove mud and sand with a small amount of water. This is because, when the concentration of a small amount of water, that is, mud and sand is high, precipitation is omitted and water treatment becomes efficient.
[0007]
Another common problem with wet cleaning is drying of the film after cleaning. At present, the centrifugal separation method is used, but it is inefficient because it is a batch process in which it is put in a centrifugal separator, dried and taken out.
[0008]
Then, an object of this invention is to provide the washing | cleaning apparatus of the waste plastic which can wash | clean the sand, mud, etc. of waste plastic efficiently.
[0009]
[Means for Solving the Problems]
The present invention has been made to achieve the above object, and the invention according to claim 1 is characterized in that at least one paddle capable of rotating around an axis, the paddle is accommodated, and an axis of the axis A casing having an inlet on one end in the direction and an outlet on the other, and a guide blade provided in the casing and moving waste plastic from the inlet toward the outlet as the paddle rotates. And a screen having a mesh, a hole, or a slit provided around or part of the periphery of the rotating paddle, and a fixed blade capable of cutting waste plastic with the rotation of the paddle. It has a feature in providing .
[0010]
The invention described in claim 2 is characterized in that, in the invention described in claim 1, the casing is provided with a watering mechanism for watering the waste plastic.
[0011]
The invention according to claim 3 is the invention according to claim 1 or 2, wherein the casing has a first outlet for discharging water and a second outlet for discharging mud, sand and the like. In the casing, a screw conveyor for separating and discharging water, mud, sand and the like is provided.
[0012]
Invention of Claim 4 uses two washing | cleaning apparatuses as described in any one of Claim 1 to 3 in series, and it wash | cleans by the 1st machine, and it is a waste plastic by the said watering mechanism in the 2nd machine. It is characterized by performing dehydration without sprinkling water.
[0014]
[Action]
Waste plastic (for example, film to be cleaned) thrown from the inlet is pressed against the inner surface of the casing and the screen with mesh, perforations, and slits by rotating paddles, and the dirt, mud and mud attached to the surface by friction with these. Is rubbed. Waste plastic is moved in the axial direction by a guide blade. At this time, a part of the waste plastic is caught on the guide blade and stirred inside the casing, thereby forming a new surface to be cleaned on the inner surface of the casing. Further, a screen having a mesh, a porous hole, or a slit is always clogged by friction with waste plastic.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a perspective view of a cleaning apparatus according to an embodiment of the present invention. Waste plastic (hereinafter referred to as “dirty plastic”) to which foreign substances such as sand, mud, and the like such as discarded agricultural plastic film, dug up plastic film and the like are attached is put into this cleaning device. Since these plastics are long, they are crushed by a crusher in advance. Dirty plastic is introduced from the inlet 1, washed, and then discharged from the outlet 2.
[0016]
A horizontal cylindrical casing 4 is arranged on the base frame 3 with its axis line oriented in the horizontal direction. An inlet 1 through which dirty plastic is introduced is formed at one end side in the axial direction of the upper portion of the casing 4, and an outlet 2 through which the washed plastic is discharged is formed at the other end side. A first discharge port 5 for discharging sprinkled water is formed on one end side in the axial direction of the lower part of the casing 4, and a second discharge port 6 for discharging mud, sand, etc. is formed on the other end side. It is formed.
[0017]
2 to 4 are sectional views of the cleaning apparatus. 2 shows a cross-sectional view in the vertical plane perpendicular to the axis of the shaft 8 to which the paddle 7 is fixed, and FIGS. 3 and 4 are diagrams in the vertical plane along the axis of the shaft 8 to which the paddle 7 is fixed. A cross-sectional view is shown. A shaft 8 extending in the horizontal direction is rotatably supported by the casing 4. A plurality of (for example, two in this embodiment) paddles 7 and 7 are fixed radially around the shaft 8. As shown in FIG. 3, the paddles 7 and 7 are formed in a rectangular plate shape and are fixed over substantially the entire length of the shaft 8 in the casing 4. The shaft 8 is rotationally driven by a driving device (not shown), whereby the paddles 7 and 7 are rotated around the shaft 8. In this embodiment, the paddles 7 and 7 are attached to the shaft 8 so as to be positioned in a substantially parallel plane without being inclined with respect to the axis of the shaft 8. In order to make it easy to move, it may be attached to the shaft 8 while being slightly inclined with respect to the axis.
[0018]
Below the paddles 7, 7 in the casing 4, a screen 10 having a semicircular cross section having a shape matched to a circular locus on the outer periphery of the rotating paddles 7, 7 is provided. The screen 10 is made of a mesh, and is disposed with a predetermined gap from the outer track of the paddles 7 and 7 so as not to interfere with the rotating paddles 7 and 7. In this embodiment, the screen 10 is provided on a part of the periphery of the rotating paddles 7 and 7 (that is, the lower half), but may be provided on the entire periphery. Moreover, the screen 10 may be comprised from the plate which has a hole or a slit other than a mesh.
[0019]
As shown in FIGS. 2 and 4, on the inner surface of the casing 4, a plurality of guide blades 11 that move dirty plastic from the inlet 1 toward the outlet 2 as the plurality of paddles 7, 7 rotate. Is provided. The guide blades 11 are inclined at a predetermined angle with respect to the vertical plane so that the dirty plastic can be moved in the axial direction. Further, as shown in FIG. 2, the guide blades 11 as viewed from the axial direction of the shaft 8 have an arc shape that matches the locus of the outer periphery of the rotating paddles 7, 7, and do not interfere with the rotating paddles 7, 7. In this manner, the paddles 7 and 7 are arranged with a predetermined gap.
[0020]
As shown in FIG. 2, a fixed blade 15 is provided on the inner surface of the casing 4. The fixed blade 15 cuts the dirty plastic rotated by the paddles 7 and 7 with a shearing force.
[0021]
As shown in FIG. 4, between the guide blades 11, there are provided watering mechanisms 12 that spray water on the dirty plastic put in the casing 4. The watering mechanism 12 is connected to a watering pipe 13 (see FIG. 2).
[0022]
As shown in FIGS. 2 and 3, a screw conveyor 14 that separates and discharges water, mud, sand, and the like is provided below the paddles 7 and 7 in the casing 4. The screw conveyor 14 has a structure in which its axis is parallel to the axis of the shaft 8 and spiral guide blades are provided around it.
[0023]
The dirty plastic introduced from the inlet 1 is pressed against the screen 10 made of the inner surface of the casing 4 and the mesh by the rotating paddles 7 and 7. Dirty plastic is rubbed off dirt, mud and mud on the surface by friction with these. As the paddles 7 and 7 rotate, the dirty plastic is moved in the axial direction by the guide blades 11. At this time, a part of the dirty plastic is caught on the guide blades 11 and stirred inside the casing 4, whereby a new surface to be cleaned is formed on the inner surface of the casing 4. If the fixed blade 15 is provided on the inner surface of the casing 4, a long product is torn off, so that the dirty plastic on the rotating paddles 7 and 7 is not entangled. Further, the screen 10 having a mesh, perforations, and slits is always free from clogging due to friction with dirty plastic.
[0024]
Moreover, the sand and mud that have been physically scraped and peeled off by a small amount of water from the watering mechanism 12. .
[0025]
The plastic from which the sand, mud, and the like have been removed moves to the discharge port 2 of the casing 4 and is discharged from the discharge port 2. On the other hand, water, sand, mud and the like discharged from the holes of the screen 10 are separated into water, sand, mud and the like by the screw conveyor 14. The separated water is discharged from the first outlet 5, and sand, mud and the like are discharged from the second outlet 6.
[0026]
Alternatively, two cleaning devices may be used in series, cleaning may be performed on the first unit, and dehydration may be performed on the second unit. In this case, in the first cleaning device, the dirty plastic is cleaned as described above. Then, the cleaned plastic discharged from the discharge port of the first cleaning device is input to the input port of the second cleaning device. In the second cleaning apparatus, the plastic is dehydrated by rotating the paddle without sprinkling the plastic.
[0027]
The cleaning apparatus of the present invention is not limited to cleaning waste plastic films such as discarded agricultural plastic films and dug up plastic films, but can also be used for containers and packaging plastic films discharged from households, bottles other than films, etc. It may be used to clean solid plastics.
[0028]
【The invention's effect】
As described above, the cleaning apparatus of the present invention has a very simple structure, so it is robust, inexpensive, and can be greatly reduced in size compared to the conventional method, and is excellent in practicality.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a cleaning device according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view of a cleaning device (a cross-sectional view in a vertical plane perpendicular to the axis of the shaft).
FIG. 3 is a cross-sectional view of the cleaning device (a cross-sectional view in a vertical plane along the axis of the shaft).
FIG. 4 is a cross-sectional view of the cleaning device (a cross-sectional view in a vertical plane along the axis of the shaft).
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Input port 2 ... Discharge port 4 ... Casing 5 ... 1st discharge port 6 ... 2nd discharge port 7 ... Paddle 8 ... Shaft 10 ... Screen 11 ... Guide blade 15 ... Fixed blade 12 ... Sprinkling mechanism 14 ... Screw conveyor

Claims (4)

軸の回りに回転しうる少なくとも一つのパドルと、前記パドルが収容され、前記軸の軸線方向における一端側に投入口を他端側に排出口を有するケーシングと、前記ケーシングに設けられ、前記パドルの回転に伴って、廃棄プラスチックを前記投入口から前記排出口に向かって移動させるガイドブレードと、回転する前記パドルの周囲又は周囲の一部に設けられ、メッシュ、多孔、又はスリットを有するスクリーンとを備え、前記ケーシングに、前記パドルの回転に伴って廃棄プラスチックを切断しうる固定刃を設けることを特徴とする廃棄プラスチックの洗浄装置。At least one paddle capable of rotating around an axis; a casing in which the paddle is housed; an input port on one end side in the axial direction of the shaft; and a discharge port on the other end side; A guide blade that moves waste plastic from the input port toward the discharge port, and a screen that is provided around or part of the periphery of the rotating paddle and has a mesh, a pore, or a slit. And the casing is provided with a fixed blade capable of cutting the waste plastic with the rotation of the paddle . 前記ケーシングに、廃棄プラスチックに散水する散水機構を設けることを特徴とする、請求項１に記載の廃棄プラスチックの洗浄装置。 The apparatus for cleaning waste plastic according to claim 1, wherein the casing is provided with a watering mechanism for spraying waste plastic. 前記ケーシングは、水を排出する第１の排出口、及び泥、砂等を排出する第２の排出口を有し、前記ケーシング内に、水と泥、砂等とを分離・排出するスクリュコンベヤを設けることを特徴とする、請求項１又は２に記載の廃棄プラスチックの洗浄装置。 The casing has a first discharge port for discharging water and a second discharge port for discharging mud, sand and the like, and a screw conveyor for separating and discharging water, mud, sand and the like in the casing. The apparatus for cleaning waste plastics according to claim 1 or 2, characterized by comprising: 請求項１から３の何れか１つに記載の洗浄装置を直列に２台使用し、１台目で洗浄を行い、２台目で前記散水機構により廃棄プラスチックに散水することなく脱水を行うことを特徴とする廃棄プラスチックの洗浄・脱水装置。Use two of the cleaning devices according to any one of claims 1 to 3 in series, perform cleaning in the first unit, and perform dehydration in the second unit without sprinkling the waste plastic with the watering mechanism. Waste plastic cleaning and dehydration equipment.
JP2003006798A 2003-01-15 2003-01-15 Waste plastic cleaning equipment and cleaning / dehydration equipment Expired - Fee Related JP4009206B2 (en)

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