JP4589944B2 - Granulated material recovery equipment in dechlorination equipment - Google Patents

Granulated material recovery equipment in dechlorination equipment Download PDF

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JP4589944B2
JP4589944B2 JP2007157343A JP2007157343A JP4589944B2 JP 4589944 B2 JP4589944 B2 JP 4589944B2 JP 2007157343 A JP2007157343 A JP 2007157343A JP 2007157343 A JP2007157343 A JP 2007157343A JP 4589944 B2 JP4589944 B2 JP 4589944B2
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water
flow path
water tank
dechlorination
flow
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JP2008307775A (en
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正美 柴本
勝典 永尾
禎 千村
幸弘 炭廣
繁幸 今
光男 永井
貞夫 東條
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Japan Steel Works Ltd
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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

Description

本発明は、脱塩素設備における造粒物回収装置に関し、特に、カッタ装置から出された樹脂ペレットを水槽の流路に供給して冷却及び固化させ、相互に付着しない樹脂ペレットを少ない流量で安定して得るための新規な改良に関する。   The present invention relates to a granulated material recovery apparatus in a dechlorination facility, and in particular, supplies resin pellets from a cutter apparatus to a water channel and cools and solidifies them to stabilize resin pellets that do not adhere to each other at a low flow rate. It relates to a new improvement to obtain.

近年、大量に廃棄されるプラスチックスの再資源化処理が行われているが、この廃棄プラスチックスの中に塩化ビニール等の塩素を含むプラスチックスが混入している場合、環境保護および材質改善の観点から、塩素の除去すなわち脱塩素処理が行われる。この脱塩素処理の一つの方法として、押出機を脱塩素機として使用する方法が実施されている。すなわち、前処理により金属類等の異物が除去された廃棄プラスチックスが、押出機へ供給され、溶融混練され、ガス化した塩化水素を含むガスが排気除去され、カッタ装置を介して粒状の製品として生産されている。   In recent years, plastics that have been disposed of in large quantities have been recycled. If plastics that contain chlorine such as vinyl chloride are mixed in these discarded plastics, environmental protection and material improvement can be achieved. From the viewpoint, removal of chlorine, that is, dechlorination is performed. As one method of this dechlorination treatment, a method of using an extruder as a dechlorination machine has been implemented. That is, waste plastics from which foreign substances such as metals have been removed by pretreatment are supplied to an extruder, melted and kneaded, gas containing hydrogen chloride is exhausted and removed, and the granular product is passed through a cutter device. Is produced as.

この脱塩素機から排出される製品は、通常、溶融状態のプラスチックスが紐状に押出され、押出し直後に適宜の長さの粒状に切断され、冷却水により冷却固化され、その後冷却水が分離され、脱水され、選別され、集積されている。このような廃棄プラスチックスの再資源化処理では、廃棄プラスチックスが脱塩素機へ連続的に供給され、再生した製品が連続的に生産されている。   The product discharged from this dechlorinator is usually extruded in the form of a string of molten plastics, cut into granules of an appropriate length immediately after extrusion, cooled and solidified with cooling water, and then the cooling water is separated. , Dehydrated, sorted and accumulated. In such a recycling process of waste plastics, the waste plastics are continuously supplied to the dechlorination machine, and recycled products are continuously produced.

従来の製品搬送装置を図５に示す。図５において、符号１で示されるものは製品搬送装置であり、この製品搬送装置１は、受入水槽１ａ、排出槽１ｃ、受入水槽１ａと排出槽１ｃとの間を連結する搬送パイプ１ｅおよび戻りパイプ１ｆにより閉ループ状態に構成されるパイプコンベヤで構成されている。また、これらで構成される閉ループには、無端状に連結されたチェーン（図示せず）が内蔵され、このチェーンには適宜の間隔でブレードが組付けられ、駆動されて閉ループ内を移動可能に構成されている。   A conventional product conveying apparatus is shown in FIG. In FIG. 5, what is denoted by reference numeral 1 is a product transport device, which includes a receiving water tank 1a, a discharge tank 1c, a transport pipe 1e connecting the receiving water tank 1a and the discharge tank 1c, and a return. It is comprised by the pipe conveyor comprised by the pipe 1f in a closed loop state. In addition, the closed loop constituted by these includes a chain (not shown) connected endlessly, and blades are assembled to the chain at appropriate intervals so that the chain can be driven to move within the closed loop. It is configured.

前記製品搬送装置１の受入水槽１ａは、脱塩素機２の先端部付近に配置され、その先端にはカッタ装置３が組付けられている。前記カッタ装置３の下方には、下方へ傾斜するシュート４が配置されている。このシュート４には、その表面に冷却水を散布できるように、傾斜方向の複数箇所の上方に散布ノズル４ａが設けられている。前記製品搬送装置１の排出部１ｃには排出口１ｄが形成され、この排出口１ｄの下方には、篩分装置６が配置されている。前記製品搬送装置１の搬送パイプ１ｅには、排水槽１ｇが設けられている。   The receiving water tank 1a of the product conveying device 1 is disposed near the tip of the dechlorination machine 2, and the cutter device 3 is assembled at the tip. Below the cutter device 3, a chute 4 that is inclined downward is disposed. The chute 4 is provided with spray nozzles 4a above a plurality of locations in the inclined direction so that cooling water can be sprayed on the surface thereof. A discharge port 1d is formed in the discharge portion 1c of the product conveying device 1, and a sieving device 6 is disposed below the discharge port 1d. A drain pipe 1g is provided in the transport pipe 1e of the product transport apparatus 1.

以上のように構成された製品搬送装置１において、廃棄プラスチックスが脱塩素機２において溶融混練され、脱塩素処理が行われ、脱塩素機２の先端から紐状に押出され、カッタ装置３により粒状に切断されて連続的に排出される。この粒状に切断された製品は、散布ノズル４ａにより冷却水が散布されているシュート４の表面を流下して冷却される。その後、受入水槽１ａ内へ冷却水とともに順次流入する。   In the product conveying apparatus 1 configured as described above, the waste plastics are melted and kneaded in the dechlorination machine 2, dechlorinated, and extruded from the tip of the dechlorination machine 2 into a string shape. It is cut into granules and discharged continuously. The product cut into granules is cooled by flowing down the surface of the chute 4 on which the cooling water is sprayed by the spray nozzle 4a. Then, it flows sequentially into the receiving water tank 1a together with the cooling water.

また、無端状に連結されると共に適宜の間隔でブレードが組付けられたチェーン（図示せず）が搬送パイプ１ｅ及び戻りパイプ１ｆ内で駆動されて移動していることにより、冷却水と共に受入水槽１ａ内へ流入した製品は、ブレードにより、搬送パイプ１ｅ内を排水槽１ｇへ冷却水と共に搬送される。この搬送中、粒状製品は、冷却水により徐々に冷却され、排水槽１ｇにおいて、冷却水が分離された後、排出部１ｃへ搬送され、排出口１ｄから次工程の篩分装置６へ排出される。尚、前述の従来構成は社内製作のみで特許出願されていないため、ここでは、その従来構成を示すための特許文献等を開示していない。   In addition, a chain (not shown) connected endlessly and assembled with blades at appropriate intervals is driven and moved in the transport pipe 1e and the return pipe 1f, so that the receiving water tank is received together with the cooling water. The product that has flowed into 1a is conveyed by the blade along the conveying pipe 1e together with the cooling water to the drainage tank 1g. During the conveyance, the granular product is gradually cooled by the cooling water, and after the cooling water is separated in the drain tank 1g, the granular product is conveyed to the discharge unit 1c and discharged from the discharge port 1d to the sieving device 6 of the next process. The In addition, since the above-mentioned conventional structure is only an in-house production and the patent application is not filed, the patent document etc. for showing the conventional structure are not disclosed here.

従来の脱塩素設備における造粒物回収装置は、以上のように構成されていたため、次のような課題が存在していた。
すなわち、従来の設備では、押出機のダイスより押出された樹脂はカッタで切断されることで造粒され、カッタ下に設置された水を入れたパイプコンベヤの受け口にシュート４を介して落下する。落下したペレット状の樹脂は、その時点では高温であり溶融状態であるが、パイプコンベヤ受け口にて多量の水にて冷却され、表面が固化する。その後、これをパイプコンベヤが目的の場所まで搬送する。この時、パイプコンベヤの受け口サイズは、パイプコンベヤの搬送能力より決定されるパイプサイズにより大きさが制限され十分な水で冷却する事が出来ない場合がある。また、ペレットの比重が水より軽い、まだ表面が冷え切らない造粒物が水の上に浮いて相互に付着し合い大きな固まりを作る現象が発生する。従って、一度溶融状態となった樹脂を造粒し回収する場合、従来のパイプコンベヤへシュート４を介して直接落下させる方式では、水面上に浮いた部分が冷却されず、相互に付着しないように表面を冷却し固化することが困難であった。 Since the granulated material collection | recovery apparatus in the conventional dechlorination equipment was comprised as mentioned above, the following subjects existed.
That is, in the conventional equipment, the resin extruded from the die of the extruder is granulated by cutting with a cutter, and falls through a chute 4 to a receiving port of a pipe conveyor containing water placed under the cutter. . The dropped pellet-like resin is at a high temperature and in a molten state at that time, but is cooled with a large amount of water at the pipe conveyor receptacle, and the surface is solidified. Thereafter, the pipe conveyor conveys it to a target location. At this time, the size of the receiving port of the pipe conveyor may be limited by the pipe size determined by the conveying capacity of the pipe conveyor and may not be cooled with sufficient water. In addition, a phenomenon occurs in which the pellets have a specific gravity lighter than water, and the granulated material whose surface has not cooled down yet floats on the water and adheres to each other to form a large mass. Therefore, when the resin once melted is granulated and recovered, the method of dropping directly onto the conventional pipe conveyor via the chute 4 does not cool the floating parts on the water surface and does not adhere to each other. It was difficult to cool and solidify the surface.

本発明による脱塩素設備における造粒物回収装置は、カッタ装置でカットされた樹脂ペレットを受けるための水槽と、前記水槽の少なくとも上部に設けられ前記水槽内に水を供給するための水ノズルと、前記水槽の出口の下方に設けられたパイプコンベヤと、前記パイプコンベヤ内の水を前記水ノズルに循環供給するためのポンプと、を備え、前記カッタ装置から前記水槽内へ供給された前記樹脂ペレットは、前記水槽内で前記水ノズルからの水により前記出口へ搬送され、前記パイプコンベヤにより外部へ搬送される構成であり、また、前記水槽は、全体形状が平面的にみてＬ字型をなし、前記カッタ装置の直下に位置する第１流路部と、前記第１流路部と段部を介して連通すると共に前記出口に連通する第２流路部と、からなる構成であり、また、前記第１流路部と第２流路部の水の流れ方向は、互いに直交している構成であり、また、前記樹脂ペレットは、比重が１以下である構成であり、また、前記水槽の前記第２流路部には、水の流れ方向に沿って水を噴出する第２水ノズルが設けられている構成であり、また、前記第２流路部の最下流の出口の上部に堰が設けられている構成である。   The granulated material recovery apparatus in the dechlorination facility according to the present invention includes a water tank for receiving resin pellets cut by a cutter apparatus, and a water nozzle provided at least in the upper part of the water tank for supplying water into the water tank. A pipe conveyor provided below the outlet of the water tank; and a pump for circulating and supplying water in the pipe conveyor to the water nozzle, and the resin supplied from the cutter device into the water tank. The pellets are transported to the outlet by water from the water nozzle in the water tank and transported to the outside by the pipe conveyor, and the water tank has an L-shape when viewed in plan view. None, comprising a first flow path portion located immediately below the cutter device, and a second flow path portion communicating with the first flow path portion via a step portion and communicating with the outlet. In addition, the water flow directions of the first flow path portion and the second flow path portion are configured to be orthogonal to each other, and the resin pellet has a specific gravity of 1 or less, The second flow path portion of the water tank is provided with a second water nozzle that ejects water along the direction of water flow, and the second flow path portion has an outlet on the most downstream side of the second flow path portion. It is the structure by which the weir is provided in the upper part.

本発明による脱塩素設備における造粒物回収装置は、以上のように構成されているため、次のような効果を得ることができる。
すなわち、カッタ装置でカットされて下方へ供給される造粒物としての樹脂ペレットが、水槽の受け部である第１流路部に落下して直ちに冷却され、続いてこの第１流路部と連通する第２流路部に流れて十分に冷却固化されるため、比重が１以下の樹脂ペレットであっても相互付着を防止して、パイプコンベヤによって外部に円滑に搬送される。 Since the granulated material collection | recovery apparatus in the dechlorination facility by this invention is comprised as mentioned above, the following effects can be acquired.
That is, the resin pellets as a granulated product that is cut by the cutter device and supplied downward are dropped into the first flow path part that is the receiving part of the water tank and immediately cooled, and then the first flow path part and Since it flows to the communicating 2nd flow-path part and is fully cooled and solidified, even if it is a resin pellet whose specific gravity is 1 or less, mutual adhesion is prevented and it is smoothly conveyed outside by a pipe conveyor.

また、水槽内の各流路部に、上方の水ノズルから水が供給されるため、樹脂ペレットと水の撹拌が十分に行われ、十分な水との熱交換によって迅速な冷却固化を達成できる。
また、各水ノズルから噴射される水流によって樹脂ペレットを搬送するため、一般的な水路内流動による搬送に比べ熱交換の効率が向上し、少ない水量で冷却搬送を行うことができる。
また、水槽内の各流路部の流れ方向が段部を介して互いに直交しているため、水流が混合することにより、樹脂ペレットと水の撹拌が多くなり、熱交換の効率が向上して、付着を防止し、歩留まりを向上できる。 In addition, since water is supplied from the upper water nozzle to each flow path section in the water tank, the resin pellet and water are sufficiently stirred, and rapid cooling and solidification can be achieved by heat exchange with sufficient water. .
In addition, since the resin pellets are transported by the water flow ejected from each water nozzle, the efficiency of heat exchange is improved compared to transport by flow in a general water channel, and cooling transport can be performed with a small amount of water.
In addition, since the flow directions of the respective flow path portions in the water tank are orthogonal to each other through the stepped portions, mixing of the water flow increases agitation of the resin pellets and water, improving the efficiency of heat exchange. , Can prevent adhesion and improve yield.

本発明は、カッタ装置から出された樹脂ペレットを水槽の流路に供給して冷却及び固化させ、相互に付着しない樹脂ペレットを少ない流量で安定して得ることができる脱塩素設備における造粒物回収装置を提供することを目的とする。   The present invention provides a granulated product in a dechlorination facility that can stably obtain resin pellets that do not adhere to each other by supplying resin pellets discharged from a cutter device to a water tank flow path and cooling and solidifying them. It aims at providing a recovery device.

以下、図面と共に本発明による脱塩素設備における造粒物回収装置の好適な実施の形態について説明する。
尚、従来例と同一又は同等部分については同一符号を用いて説明する。
図１において符号３で示されるものは、押出機からなる脱塩素機２の先端に設けられたカッタ装置であり、このカッタ装置３の吐出部３ａからは、ストランドを切断して形成された樹脂ペレット３ｂが下方へ落下して供給されるように構成されている。 Hereinafter, preferred embodiments of a granulated material recovery apparatus in a dechlorination facility according to the present invention will be described with reference to the drawings.
Note that the same or equivalent parts as in the conventional example will be described using the same reference numerals.
1 is a cutter device provided at the tip of a dechlorination machine 2 made of an extruder, and a resin formed by cutting a strand from a discharge portion 3a of the cutter device 3. The pellet 3b is configured to fall and be supplied downward.

前記カッタ装置３の下方位置には、平面形状でＬ字型をなすと共に樹脂ペレット３ｂの搬送を行う搬送部としての水槽１０が配置されている。
前記水槽１０は、その上流部に設けられた第１流路部１１と、その下流部に設けられた第２流路部１２と、前記第１流路部１１の最上流の上部に設けられた第１水ノズル４ａと、前記第２流路部１２の側部に設けられた第２水ノズル４ｂと、前記第２流路部１２の上方に設けられた第３水ノズル４ｃと、前記第２流路部１２の最下流の出口１０ａの上部に設けられた堰１３と、前記第２流路部の最下流で前記水槽１０の底部に形成された出口１０ａと、から構成されている。 Below the cutter device 3, a water tank 10 is disposed as a transport unit that transports the resin pellets 3b while being L-shaped in a planar shape.
The water tank 10 is provided at a first flow path portion 11 provided at an upstream portion thereof, a second flow path portion 12 provided at a downstream portion thereof, and an uppermost portion of the first flow path portion 11. The first water nozzle 4a, the second water nozzle 4b provided on the side of the second flow path section 12, the third water nozzle 4c provided above the second flow path section 12, It is comprised from the weir 13 provided in the upper part of the most downstream exit 10a of the 2nd flow-path part 12, and the exit 10a formed in the bottom part of the said water tank 10 in the most downstream of the said 2nd flow-path part. .

前記出口１０ａの直下位置には、周知の構成よりなるパイプコンベヤ１が配設され、このパイプコンベヤ１は、貯留槽８及びポンプ７を介して前記各水ノズル４ａ、４ｂ、４ｃに接続され、前記ポンプ７の作用によって水が水槽１０内を循環するように構成されている。   A pipe conveyor 1 having a well-known configuration is disposed immediately below the outlet 10a. The pipe conveyor 1 is connected to the water nozzles 4a, 4b, and 4c via a storage tank 8 and a pump 7, Water is circulated in the water tank 10 by the action of the pump 7.

図１の装置をＡ−Ａ断面でみると、図２に示される通りであり、前記樹脂ペレット３ｂを受ける受け部としての前記第１流路部１１と前記第２流路部１２との間に、下方へ下がる段部２０が形成されており、前記樹脂ペレット３ｂと水は、前記第１流路部１１から段部２０を経て第２流路部１２へ流下するように構成されている。   When the apparatus of FIG. 1 is seen in the AA cross section, it is as shown in FIG. 2, and is between the first flow path part 11 and the second flow path part 12 as a receiving part for receiving the resin pellet 3b. Further, a stepped portion 20 that descends downward is formed, and the resin pellet 3b and water are configured to flow from the first flow path portion 11 to the second flow path portion 12 through the stepped portion 20. .

前記水槽１０は、図３に示されるように、平面的にみてＬ字型をなし、前記第１流路部１１と第２流路部１２はＬ字型に連通し、第１流路部１１の第１流れ方向Ｓ１と第２流路部１２の第２流れ方向Ｓ２は互いに直交するように構成されている。 As shown in FIG. 3, the water tank 10 has an L shape in plan view, and the first flow path portion 11 and the second flow path portion 12 communicate with each other in an L shape. the second flow direction S 2 of the first flow direction S 1 and the second flow path part 12 of the 11 is configured so as to be perpendicular to each other.

前記各水ノズル４ａ、４ｂ、４ｃは、図３で示されるように、第１水ノズル４ａが第１流路部１１の上方で上流位置に設けられ、第２水ノズル４ｂが水槽１０の側部で第２流路部１２の上流位置に設けられ、第３水ノズル４ｃは第２流路部１２の上方位置に設けられている。
前記第２水ノズル４ｂから噴出される水流の方向は、前記第２流れ方向Ｓ２に沿い、第２流れ方向Ｓ２の水流が形成されている。尚、前記堰１３は、例えば、図４に示されるように構成され、前記水槽１０に設けた一対のガイド溝２０内に複数の分割プレート１３ａが縦方向に挿入及び離脱自在に設けられている。従って、各分割プレート１３ａは交換式に構成され、各分割プレート１３ａの縦方向の枚数及び大きさを選択することにより、前記堰１３の高さを可変とするによってオーバーフローする水流の高さを可変とすることができるように構成されている。 As shown in FIG. 3, each of the water nozzles 4 a, 4 b, and 4 c is provided with the first water nozzle 4 a at the upstream position above the first flow path portion 11, and the second water nozzle 4 b on the water tank 10 side. The third water nozzle 4 c is provided at an upper position of the second flow path portion 12.
Direction of the water flow ejected from the second water nozzles 4b is along the second flow direction S 2, a second water flow in the flow direction S 2 is formed. For example, the weir 13 is configured as shown in FIG. 4, and a plurality of divided plates 13 a are provided in a pair of guide grooves 20 provided in the water tank 10 so as to be freely inserted and removed in the vertical direction. . Accordingly, each divided plate 13a is configured to be exchangeable, and by selecting the number and size of each divided plate 13a in the vertical direction, the height of the weir 13 can be changed to change the height of the overflowing water flow. It is comprised so that it can be.

次に、動作について説明する。
前記脱塩素機２の先端のカッタ装置３より造粒され落下した樹脂ペレット３ｂは水槽１０の受け部としての第１流路部１１にて、第１水ノズル４ａより作られる水流によって瞬時に水で被われると共に、水槽１０の搬送部としての第２流路部１２へ迅速に移動されるため、連続的に製造される溶融状態の樹脂ペレット３ｂが落下部で相互に付着することを防ぐことができる。
また、第２流路部１２に入った樹脂ペレット３ｂは、第２水ノズル４ｂにて作られる水流により攪拌、移送されパイプコンベヤ１の受け口へと向かう。この間では、水流にて樹脂ペレット３ｂの表面が常時水で被われるように適切な流量を確保すると共に、第３水ノズル４ｃより水を噴霧し、水面に浮いた樹脂ペレット３ｂの表面も常時濡れた状態で保たれる。
また、前記堰１３の高さが可変であるため、樹脂ペレット３ｂの大きさ、比重によって、前記第２流路部１２の水深を調節できる。
前記パイプコンベヤ１の受け部は従来の構造と同じもので、ここで分離された水は貯留槽８へ戻り、ポンプ７にて循環利用され、各水ノズル４ａ、４ｂ、４ｃより再び水槽１０へと循環供給される。 Next, the operation will be described.
The resin pellets 3b granulated and dropped from the cutter device 3 at the tip of the dechlorination machine 2 are instantly watered by the water flow created by the first water nozzle 4a in the first flow path part 11 as the receiving part of the water tank 10. In addition, the molten resin pellets 3b that are continuously manufactured are prevented from adhering to each other at the dropping part. Can do.
Further, the resin pellets 3b that have entered the second flow path portion 12 are stirred and transferred by the water flow created by the second water nozzle 4b and travel toward the receiving port of the pipe conveyor 1. During this time, an appropriate flow rate is secured so that the surface of the resin pellet 3b is always covered with water by water flow, and water is sprayed from the third water nozzle 4c, so that the surface of the resin pellet 3b floating on the water surface is always wet. It is kept in the state.
Further, since the height of the weir 13 is variable, the water depth of the second flow path portion 12 can be adjusted by the size and specific gravity of the resin pellet 3b.
The receiving portion of the pipe conveyor 1 is the same as the conventional structure, and the water separated here returns to the storage tank 8 and is circulated and used by the pump 7 to return to the water tank 10 from each of the water nozzles 4a, 4b, and 4c. Circulated and supplied.

従って、前記カッタ装置３の下に設置された第１流路部１１は第１水ノズル４ａより噴射される水流により、落下してきた樹脂ペレット３ｂの表面をまんべんなく水で濡らすと共に、落下位置より下流へ樹脂ペレット３ｂを瞬時に移動する役目がある。これによって、次に落下してくる高温の溶融状態の樹脂ペレット３ｂとの落下部での相互付着を防ぐことが出来る。また、水流内に樹脂ペレット３ｂが巻き込まれることで、樹脂ペレット３ｂの表面が瞬時に水で被われ、冷却されるため、相互に付着することを防ぐことができる。更に、カッタ装置３の下から水流で運ばれた樹脂ペレット３ｂは、搬送用の第２流路部１２の中でも、上流の第１水ノズル４ａから供給される水流で攪拌されると共に、水面に浮かんだ樹脂ペレット３ｂについても上方の第３水ノズル４ｃから噴霧される水によってまんべんなく表面が濡れた状態が保たれつつ、また冷やされながら第２流路部１２の出口１０ａへと運ばれる。
この出口１０ａに来たところでは既に樹脂ペレット３ｂの表面は固まっており、お互いに接触しても相互に付着しない状態となっている。従って、出口１０ａより従来の搬送システムであるパイプコンベヤ１の受け口に投入された樹脂ペレット３ｂは、相互に付着することなく搬送できる。
また、パイプコンベヤ１に樹脂ペレット３ｂと共に入った水は、図示しないスリットより排水され、規格外樹脂ペレットを分離した後にポンプ７で循環使用される。比重が１以下の樹脂ペレット３ｂも確実に水に濡れた状態が保たれ、急速な冷却固化ができる。 Accordingly, the first flow path portion 11 installed under the cutter device 3 uniformly wets the surface of the dropped resin pellet 3b with water by the water flow ejected from the first water nozzle 4a and is further downstream from the dropping position. The resin pellet 3b is instantaneously moved. Thereby, mutual adhesion at the dropping portion with the high temperature molten resin pellet 3b that falls next can be prevented. Moreover, since the resin pellet 3b is caught in the water stream, the surface of the resin pellet 3b is instantaneously covered with water and cooled, so that they can be prevented from adhering to each other. Further, the resin pellets 3b carried by the water flow from under the cutter device 3 are agitated by the water flow supplied from the upstream first water nozzle 4a in the second flow path portion 12 for conveyance, and are also placed on the water surface. The floated resin pellets 3b are also transported to the outlet 10a of the second flow path portion 12 while the surface is kept wet by water sprayed from the upper third water nozzle 4c and is cooled.
The surface of the resin pellet 3b is already hardened when it comes to the outlet 10a, so that it does not adhere to each other even if it contacts each other. Therefore, the resin pellets 3b thrown from the outlet 10a into the receiving port of the pipe conveyor 1, which is a conventional transport system, can be transported without adhering to each other.
Further, the water that has entered the pipe conveyor 1 together with the resin pellets 3b is drained from a slit (not shown), and is circulated and used by the pump 7 after separating the nonstandard resin pellets. The resin pellet 3b having a specific gravity of 1 or less is also reliably kept wet with water, and can be rapidly cooled and solidified.

また、前記各流路部１１、１２は互いに直交していると共に、段部２０で互いに連通しているため、段部２０を落下した水流が第１流れ方向Ｓ１から第２流れ方向Ｓ２に向きを変える際に、水流が混合し、水と樹脂ペレット３ｂとの混合が十分に行われる。 Further, the with each flow path portions 11 and 12 are orthogonal to each other, stepped portions because they communicate with each other at 20, stepped portion 20 and the second flow direction fallen water flow from the first flow direction S 1 and S 2 When the direction is changed, the water flow is mixed, and the water and the resin pellets 3b are sufficiently mixed.

次に、本出願人は、図１に示される本発明による造粒物回収装置を用いて回収実験を行ったその結果を以下に説明する。
前記水槽の第１流路部の容積：約０．１３ｍ３、第２流路部１２の容積：約０．２ｍ３を有する造粒物回収装置において、各水ノズルの水量を第１水ノズル４ａの水量：２５〜３５ｍ３／ｈ、第２水ノズル４ｂの水量：８〜１１ｍ３／ｈ、第３水ノズル４ｃの水量：１〜２ｍ３／ｈに設定した。前述の構成において、ポリエチレン、ポリスチレン、ポリプロピレン、塩化ビニールなどを含む廃プラスチックを脱塩素機としての二軸押出機で構成された脱塩素機２で処理した後、先端のカッタ装置３によって造粒された造粒物（樹脂ペレット３ｂ）（直径：１７〜２４ｍｍ、長さ：１０〜２５ｍｍ）を、この造粒物回収装置に落下させて冷却した。この結果、樹脂ペレットが相互に付着して大きな固まりを作る現象が起きることなしに、樹脂ペレットを出口１０ａから落下させることができた。 Next, the present applicant will explain the results of a recovery experiment using the granulated product recovery apparatus according to the present invention shown in FIG.
Volume of the first channel part of the tub: about 0.13 m 3, the volume of the second flow path part 12: the granulate collection device having about 0.2 m 3, the amount of water of each water nozzle first water nozzle water of 4a: 25~35m 3 / h, the amount of water a second water nozzle 4b: set to 1~2m 3 / h: 8~11m 3 / h, a third water water nozzles 4c. In the above-described configuration, waste plastic including polyethylene, polystyrene, polypropylene, vinyl chloride, etc. is processed by a dechlorination machine 2 constituted by a twin screw extruder as a dechlorination machine, and then granulated by a cutter device 3 at the tip. The granulated product (resin pellet 3b) (diameter: 17 to 24 mm, length: 10 to 25 mm) was dropped into the granulated product recovery apparatus and cooled. As a result, the resin pellets could be dropped from the outlet 10a without causing a phenomenon that the resin pellets adhered to each other to form a large mass.

本発明による脱塩素設備における造粒物回収装置のフローを示す構成図である。It is a block diagram which shows the flow of the granulated material collection | recovery apparatus in the dechlorination equipment by this invention. 図１のＡ−Ａ断面図である。It is AA sectional drawing of FIG. 図１の水槽を示す斜視図である。It is a perspective view which shows the water tank of FIG. 図１及び図３の水槽の堰を示す拡大斜視図である。It is an expansion perspective view which shows the weir of the water tank of FIG.1 and FIG.3. 従来の製品搬送装置のフローを示す構成図である。It is a block diagram which shows the flow of the conventional product conveyance apparatus.

符号の説明Explanation of symbols

１ パイプコンベヤ
２ 脱塩素機
３ カッタ装置
３ａ 吐出部
３ｂ 樹脂ペレット（造粒物）
４ａ 第１水ノズル
４ｂ 第２水ノズル
４ｃ 第３水ノズル
７ ポンプ
８ 貯留槽
１０ 水槽
１０ａ 出口
１１ 第１流路部
１２ 第２流路部
２０ 段部
Ｓ１ 第１流れ方向
Ｓ２ 第２流れ方向 DESCRIPTION OF SYMBOLS 1 Pipe conveyor 2 Dechlorination machine 3 Cutter apparatus 3a Discharge part 3b Resin pellet (granulated material)
4a 1st water nozzle 4b 2nd water nozzle 4c 3rd water nozzle 7 Pump 8 Storage tank 10 Water tank 10a Outlet 11 1st flow path part 12 2nd flow path part 20 Step part S 1 1st flow direction S 2 2nd flow direction

Claims (6)

カッタ装置(3)でカットされた樹脂ペレット(3b)を受けるための水槽(10)と、前記水槽(10)の少なくとも上部に設けられ前記水槽(10)内に水を供給するための水ノズル(4a〜4c)と、前記水槽(10)の出口(10a)の下方に設けられたパイプコンベヤ(1)と、前記パイプコンベヤ(1)内の水を前記水ノズル(4a〜4c)に循環供給するためのポンプ(7)と、を備え、
前記カッタ装置(3)から前記水槽(10)内へ供給された前記樹脂ペレット(3b)は、前記水槽(10)内で前記水ノズル(4a〜4c)からの水により前記出口(10a)へ搬送され、前記パイプコンベヤ(1)により外部へ搬送される構成としたことを特徴とする脱塩素設備における造粒物回収装置。 A water tank (10) for receiving the resin pellets (3b) cut by the cutter device (3), and a water nozzle for supplying water into the water tank (10) provided at least above the water tank (10) (4a-4c), the pipe conveyor (1) provided below the outlet (10a) of the water tank (10), and the water in the pipe conveyor (1) is circulated to the water nozzles (4a-4c) A pump (7) for supplying,
The resin pellet (3b) supplied from the cutter device (3) into the water tank (10) is supplied to the outlet (10a) by water from the water nozzles (4a to 4c) in the water tank (10). A granulated product recovery apparatus in a dechlorination facility, characterized in that it is transported and transported to the outside by the pipe conveyor (1). 前記水槽(10)は、全体形状が平面的にみてＬ字型をなし、前記カッタ装置(3)の直下に位置する第１流路部(11)と、前記第１流路部(11)と段部(20)を介して連通すると共に前記出口(10a)に連通する第２流路部(12)と、からなることを特徴とする請求項１記載の脱塩素設備における造粒物回収装置。   The water tank (10) is L-shaped as a whole when viewed in plan, and includes a first flow path portion (11) positioned immediately below the cutter device (3), and the first flow path portion (11). And a second flow path portion (12) communicating with the outlet (10a) through the step portion (20) and granulated material recovery in the dechlorination facility according to claim 1, apparatus. 前記第１流路部(11)と第２流路部(12)の水の流れ方向(S1,S2)は、互いに直交していることを特徴とする請求項２記載の脱塩素設備における造粒物回収装置。   The structure in the dechlorination facility according to claim 2, wherein the water flow directions (S1, S2) of the first flow path part (11) and the second flow path part (12) are orthogonal to each other. Grain collection device. 前記樹脂ペレット(3b)は、比重が１以下であることを特徴とする請求項１ないし３の何れかに記載の脱塩素設備における造粒物回収装置。   The granulated product recovery apparatus in a dechlorination facility according to any one of claims 1 to 3, wherein the resin pellet (3b) has a specific gravity of 1 or less. 前記水槽(10)の前記第２流路部(12)には、水の流れ方向(S2)に沿って水を噴出する第２水ノズル(4b)が設けられていることを特徴とする請求項２ないし４の何れかに記載の脱塩素設備における造粒物回収装置。   The second water flow path (12) of the water tank (10) is provided with a second water nozzle (4b) for ejecting water along a water flow direction (S2). Item 5. A granulated material recovery apparatus in a dechlorination facility according to any one of Items 2 to 4. 前記第２流路部(12)の最下流の出口(10a)の上部に堰(13)が設けられていることを特徴とする請求項２ないし５の何れかに記載の脱塩素設備における造粒物回収装置。   The dechlorination facility according to any one of claims 2 to 5, wherein a weir (13) is provided above the most downstream outlet (10a) of the second flow path portion (12). Grain collection device.
JP2007157343A 2007-06-14 2007-06-14 Granulated material recovery equipment in dechlorination equipment Expired - Fee Related JP4589944B2 (en)

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