JP2895714B2 - Extruder structure in waste plastic recycling facility - Google Patents
Extruder structure in waste plastic recycling facilityInfo
- Publication number
- JP2895714B2 JP2895714B2 JP5153946A JP15394693A JP2895714B2 JP 2895714 B2 JP2895714 B2 JP 2895714B2 JP 5153946 A JP5153946 A JP 5153946A JP 15394693 A JP15394693 A JP 15394693A JP 2895714 B2 JP2895714 B2 JP 2895714B2
- Authority
- JP
- Japan
- Prior art keywords
- raw material
- casing
- feeder
- waste plastic
- heating
- 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.)
- Expired - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/54—Screws with additional forward-feeding elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/57—Screws provided with kneading disc-like elements, e.g. with oval-shaped elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/64—Screws with two or more threads
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、塩化ビニールを含む廃
プラスチックを油化して灯油，軽油留分及びガソリン留
分として回収する処理設備に係り、特に破砕されたプラ
スチックを一次溶融する押出機の腐食を防止する構造に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a processing apparatus for converting waste plastics containing vinyl chloride into oil to recover kerosene, gas oil fraction and gasoline fraction, and more particularly to an extruder for primary melting of crushed plastic. It relates to a structure for preventing corrosion.
【０００２】[0002]
【従来の技術】廃プラスチックを再生処理する設備は、
廃プラスチックを破砕する処理から重質油及び軽質油ま
での回収を行なうものが一般に知られている。2. Description of the Related Art Equipment for reclaiming waste plastic is:
It is generally known to recover waste plastics from heavy oil and light oils by crushing the waste plastics.
【０００３】図３はこの設備におけるプロセスのフロー
であり、廃プラスチックを破砕及び選別する前処理装置
と前処理された廃プラスチックを軽質油及び重質油とし
て回収する油化装置に大別される。そして、油化したと
きの重質油を利用して自家発電を行い、それを設備電力
とすることによって操業が行われる。FIG. 3 shows a process flow in this facility, which is roughly classified into a pretreatment device for crushing and sorting waste plastic and an oiling device for collecting pretreated waste plastic as light oil and heavy oil. . Then, the in-house power generation is performed by using the heavy oil at the time of oil conversion, and the operation is performed by using the generated power as equipment power.
【０００４】これらの装置の中で、油化装置の一部を構
成する押出機は、廃プラスチック受槽から定量供給され
る原料を加熱して一次溶融し、この一次溶融したものを
原料混合槽へ送り出す機能を持ち、ケーシングの内部に
スクリュー軸を配置した構造である。Among these apparatuses, an extruder which constitutes a part of an oiling apparatus heats a raw material supplied in a fixed amount from a waste plastic receiving tank to firstly melt the raw material, and transfers the primary molten material to a raw material mixing tank. It has a function of sending out and has a screw shaft disposed inside the casing.
【０００５】[0005]
【発明が解決しようとする課題】ところが、廃プラスチ
ックを一次溶融するときの加熱過程において、塩化ビニ
ール等の脱塩素化反応によって塩化水素が発生する。こ
の発生した塩化水素は、押出機の内部の低温域での腐食
を起こさせる原因となる。However, hydrogen chloride is generated by a dechlorination reaction of vinyl chloride or the like in a heating process when the waste plastic is primarily melted. The generated hydrogen chloride causes corrosion in a low temperature region inside the extruder.
【０００６】このような腐食は、次のような理由で発生
する。本装置では廃プラスチックを常温から約３００℃
まで加熱する。そのため、塩酸が凝縮する低温域が必ず
存在する。この凝縮域では、塩酸は押出機のケーシング
内面及びスクリュー軸の表面金属を、主に次のような反
応によって激しく腐食させる。[0006] Such corrosion occurs for the following reasons. In this device, waste plastics can be cooled from room temperature to approx.
Heat until Therefore, there is always a low temperature region where hydrochloric acid condenses. In this condensed zone, the hydrochloric acid violently corrodes the metal inside the casing of the extruder and the surface of the screw shaft mainly by the following reaction.
【０００７】Ｍ＋２ＨＣｌ → ＭＣｌ2 ＋Ｈ2
（Ｍ：Ｆｅ，Ｎｉ等） そして廃プラスチック中の水分が増大すると、この低温
腐食傾向が一段と加速する。M + 2HCl → MCl 2 + H 2
(M: Fe, Ni, etc.) Then, when the water content in the waste plastic increases, this tendency of low-temperature corrosion is further accelerated.
【０００８】このような塩化水素に起因する腐食の発生
に対し、従来ではＣａＯ等の中和剤を投入することで対
応している。しかしながら、このような化学的な処理で
は、設備の複雑化，ランニングコスト増及び系内で生成
する塩の抜き出しといった諸問題があった。Conventionally, such corrosion caused by hydrogen chloride has been dealt with by adding a neutralizing agent such as CaO. However, such a chemical treatment has various problems such as complicated equipment, increased running cost, and extraction of salts generated in the system.
【０００９】本発明において解決すべき課題は、廃プラ
スチックを一次溶融する押出機の低温腐食を防止しその
耐久性を向上させると共に、押出機において効率的に脱
塩化水素を行い、後段の設備及び運転を簡素化すること
にある。The problem to be solved in the present invention is to prevent low temperature corrosion of an extruder for primary melting of waste plastics, improve the durability thereof, and efficiently perform dehydrochlorination in the extruder. The purpose is to simplify driving.
【００１０】[0010]
【課題を解決するための手段】本発明は、廃プラスチッ
クの原料の装入口と、一次溶融後の原料を原料混合槽へ
排出する排出口と、前記装入口から排出口まで原料を搬
送するフィーダと、前記原料を一次溶融する加熱系と、
該加熱系によって加熱され発生する、ケーシング内のガ
スを外気に開放するガス抜き路を原料の搬送方向に複数
個備えた押出機において、前記ケーシングの装入口側の
胴回りに冷却チャンバを、排出口側の胴回りに加熱チャ
ンバを各々形成し、前記フィーダの構成を回転軸の軸方
向にスクリューとパドルとを交互に配設せしめ、前記ガ
ス抜き路の配設位置をケーシングの加熱チャンバゾーン
で且つフィーダのスクリュー配設の位置とし、前記装入
口側のケーシング内周面に耐食層を形成すると共に前記
加熱系の始端までのフィーダを耐塩化水素材としたこと
を特徴とする。SUMMARY OF THE INVENTION The present invention is directed to a loading port for a raw material of waste plastic, a discharge port for discharging the raw material after primary melting to a raw material mixing tank, and a feeder for conveying the raw material from the charging port to the discharge port. And a heating system for primary melting the raw material ,
Gas in the casing generated by being heated by the heating system
Multiple gas vent paths in the material transport direction
Pieces extruding machine odor with, the spout side of the casing
Cooling chamber around the waist and heating chamber around the outlet
And the feeder configuration is changed in the direction of the rotation axis.
Screws and paddles are alternately arranged in the
Set the position of the drainage path to the heating chamber zone of the casing.
The feeder is provided with a screw, and a corrosion-resistant layer is formed on the inner peripheral surface of the casing on the charging inlet side, and the feeder up to the starting end of the heating system is made of a chlorinated water-resistant material.
【００１１】[0011]
【作用】装入口側には加熱系を備えないため低温域とな
り、この低温域に含まれるケーシングの内部にはたとえ
ばフェノール系の樹脂によってコーティング層を施すこ
とによって耐食性を持たせる。また、フィーダは耐塩化
水素系の素材を適用することによって、塩化水素による
腐食の進行を抑えるようにする。The charging inlet is not provided with a heating system so that it has a low temperature range. The inside of the casing included in the low temperature range is provided with a coating layer of, for example, a phenolic resin to provide corrosion resistance. The feeder is made of a material resistant to hydrogen chloride so as to suppress the progress of corrosion due to hydrogen chloride.
【００１２】一方、このような部材の耐食性の維持だけ
でなく、加熱されるケーシング内のガスを逃がすガス抜
き路を低温域の下流側に備えることによって、脱塩化水
素化によって発生した塩化水素が低温域に至ることを防
いだり、原料からの蒸気を排出して、塩化水素による腐
食反応を抑える。On the other hand, not only by maintaining the corrosion resistance of such a member, but also by providing a degassing path for releasing gas in the heated casing downstream of the low temperature region, hydrogen chloride generated by dehydrochlorination can be reduced. Prevents reaching low temperature range and discharges steam from raw materials to suppress corrosion reaction due to hydrogen chloride.
【００１３】[0013]
【実施例】図１は本発明の押出機の一実施例を示す縦断
面図、図２は押出機の前後の設備の概要を示す図であ
る。FIG. 1 is a longitudinal sectional view showing one embodiment of an extruder according to the present invention, and FIG. 2 is a diagram showing an outline of equipment before and after the extruder.
【００１４】図２において、従来技術の項で説明した油
化装置の前段として配置した廃プラスチック受槽５０の
下側に押出機１が配置され、この中で一次溶融した原料
を受ける原料混合槽５１がその下流に配置され、この原
料混合槽５１の下流には熱分解槽５２を設置している。In FIG. 2, an extruder 1 is disposed below a waste plastic receiving tank 50 disposed as a preceding stage of the oiling apparatus described in the section of the prior art, in which a raw material mixing tank 51 for receiving a primary molten raw material. The pyrolysis tank 52 is provided downstream of the raw material mixing tank 51.
【００１５】廃プラスチック受槽５０は、廃プラスチッ
クを定量的に押出機１に供給し、原料混合槽５１では一
次溶融された原料をほぼ完全溶融する。また、熱分解槽
５２では溶融された原料を熱分解し、発生した熱分解油
の蒸気を下流の処理工程へと供給する。The waste plastic receiving tank 50 supplies the waste plastic to the extruder 1 quantitatively, and the raw material mixing tank 51 almost completely melts the primary melted raw material. Further, in the pyrolysis tank 52, the molten raw material is pyrolyzed, and the generated pyrolysis oil vapor is supplied to a downstream processing step.
【００１６】押出機１は、ケーシング２の一端の上側に
原料の装入口２ａ及び他端の下側に一次溶融した後の原
料の排出口２ｂを備え、これらのそれぞれを廃プラスチ
ック受槽５０及び原料混合槽５１に接続可能としたもの
である。そして装入口２ａ側には装入口２ａ周りに原料
が付着するのを防止するための冷却チャンバ２ｃを胴周
りに形成し、下流側には原料を加熱するための熱媒が循
環する加熱チャンバ２ｄを同様に胴周りに設ける。The extruder 1 is provided with a raw material charging port 2a above one end of a casing 2 and a raw material outlet 2b after primary melting below the other end thereof. It can be connected to the mixing tank 51. A cooling chamber 2c for preventing the raw material from adhering around the charging port 2a is formed around the body on the side of the charging port 2a, and a heating chamber 2d for circulating a heat medium for heating the raw material is formed on the downstream side. Is similarly provided around the torso.
【００１７】ケーシング２の内部には回転軸３を組み込
み、図において左側端を外部に突き出してこれを駆動機
構（図示せず）に連接する。この回転軸３の右端は軸受
３ａによって支持され、原料が通過する空間と外部とを
シールするためのランタンリング３ｂ，３ｃを備えてい
る。そして装入口２ａ側のランタンリング３ｂが原料の
通過空間に臨む面にはリテーナリング３ｄを設ける。A rotating shaft 3 is incorporated in the casing 2, and a left end thereof is protruded to the outside in the figure, and is connected to a driving mechanism (not shown). The right end of the rotating shaft 3 is supported by a bearing 3a and includes lantern rings 3b and 3c for sealing the space through which the raw material passes and the outside. A retainer ring 3d is provided on the surface where the lantern ring 3b on the side of the charging port 2a faces the raw material passage space.
【００１８】装入口２ａ側のランタンリング３ｂには、
ケーシング２の外部に突き出る不活性ガスの供給管４の
管端を接続する。この供給管４からは、たとえばＮ2 等
の不活性ガスを適切な圧力で供給し、回転軸３周りを軸
封する。また、装入口２ａよりも下流側であって加熱ジ
ャケット２ｄに対応する部分にはそれぞれガス抜き管５
ａ，６ａを外部に突き出して設け、ケーシング２の内部
を大気解放する。The lantern ring 3b on the charging inlet 2a side includes:
The pipe end of the inert gas supply pipe 4 protruding outside the casing 2 is connected. From the supply pipe 4, an inert gas such as N 2 is supplied at an appropriate pressure, and the periphery of the rotating shaft 3 is sealed. A degassing pipe 5 is provided at a portion downstream of the charging port 2a and corresponding to the heating jacket 2d.
a, 6a are provided so as to protrude outside, and the inside of the casing 2 is opened to the atmosphere.
【００１９】一方、回転軸３には、装入口２ａ側に対応
する部分及びガス抜き管５ａ，５ｂに対応する部分にス
クリュー３ｅ，３ｆ，３ｇを設け、その他の部分にはパ
ドル３ｇ，３ｈを備え、これらの回転軸３，スクリュー
３ｅ〜３ｇ及びパドル３ｇ，３ｈによって原料を排出口
２ｂ側に送るフィーダを構成する。On the other hand, the rotating shaft 3 is provided with screws 3e, 3f, 3g at portions corresponding to the inlet 2a side and at portions corresponding to the gas vent pipes 5a, 5b, and paddles 3g, 3h are provided at other portions. The feeder for feeding the raw material to the discharge port 2b side is configured by the rotating shaft 3, the screws 3e to 3g, and the paddles 3g, 3h.
【００２０】ここで、ケーシング２，回転軸３，スクリ
ュー３ｆ及びパドル３ｈはいずれもＳＵＳを素材とした
ものである。そして、低温域での腐食を防止するため、
ケーシング２の内周面にフェノール樹脂のコーティング
層２ｅを設け、スクリュー３ｄ，３ｅ及びこれらの間に
位置するパドル３ｇはＮｉを基材としＣｒ及びＭｏを適
量含む合金によって製作したものとする。さらに、装入
口２ａ側に配置したリテーナリング３ｄは、テトラフル
オロエチレンの被膜層を形成したものを用いる。Here, the casing 2, the rotating shaft 3, the screw 3f and the paddle 3h are all made of SUS. And, in order to prevent corrosion in the low temperature range,
A coating layer 2e of phenolic resin is provided on the inner peripheral surface of the casing 2, and the screws 3d and 3e and the paddle 3g located therebetween are made of an alloy containing Ni as a base material and containing appropriate amounts of Cr and Mo. Further, as the retainer ring 3d disposed on the side of the charging port 2a, a retainer ring formed with a tetrafluoroethylene coating layer is used.
【００２１】また、装入口２ａ側に位置するガス抜き管
５ａは、原料がスクリュー３ｆによって送られて加熱ジ
ャケット２ｄによって加熱される初期に発生する蒸発水
分を主に掃気する。そして下流側のガス抜き管５ｂは加
熱が進行して発生する塩化水素ガスを主に掃気する。こ
のようなガス抜き管５ａ，５ｂを備えたことによって、
発生した塩化水素ガスが装入口２ａ側に向かう前に未然
に外部に排出することができる。The degassing pipe 5a located on the side of the charging port 2a mainly scavenges evaporated water generated at the initial stage when the raw material is sent by the screw 3f and heated by the heating jacket 2d. Then, the gas vent pipe 5b on the downstream side mainly scavenges hydrogen chloride gas generated by the progress of heating. By providing such degassing tubes 5a and 5b,
The generated hydrogen chloride gas can be discharged to the outside before heading toward the charging port 2a.
【００２２】以上の構成において、装入口２ａからの廃
プラスチックは、回転軸３のスクリュー３ｄ〜３ｆ及び
パドル３ｇ，３ｈによって排出口２ｂ側へ送られ、加熱
ジャケット２ｄによる加熱によって一次溶融される。こ
の加熱のとき、加熱ジャケット２ｄ側では脱塩素化が起
こるが、上流のガス抜き管５ａでは主として蒸発水分が
排出され、下流のガス抜き管５ｂでは発生した塩化水素
ガスが主として排出される。したがって、低温域であっ
ても水分の存在が希薄であることから、ケーシング２，
スクリュー３ｄ〜３ｆ及びパドル３ｇ，３ｈと発生した
塩化水素ガスの反応が抑えられ、腐食が抑制される。In the above configuration, the waste plastic from the charging port 2a is sent to the discharge port 2b side by the screws 3d to 3f of the rotating shaft 3 and the paddles 3g, 3h, and is primarily melted by heating by the heating jacket 2d. At the time of this heating, dechlorination occurs on the heating jacket 2d side, but mainly the evaporated water is discharged from the upstream vent pipe 5a, and the generated hydrogen chloride gas is mainly discharged from the downstream vent pipe 5b. Therefore, since the presence of moisture is low even in a low temperature range, the casing 2,
Reaction of the generated hydrogen chloride gas with the screws 3d to 3f and the paddles 3g and 3h is suppressed, and corrosion is suppressed.
【００２３】このように、ガス抜き管５ａ，５ｂの適切
な配置によって、ＮｉＣ１2 及びＦｅＣ１2 の発生を防
ぐことができ、低温側のケーシング２，スクリュー３
ｄ，３ｅ及びパドル３ｇの化学変化による腐食の進行を
抑えることが可能となる。そして、ガス抜き管５ａ，５
ｂに対応する部分にはスクリュー３ｅ，３ｆが位置して
いるので、パドル３ｇ，３ｈに突き合わせるよりもガス
流れを速やかにガス抜き管５ａ，５ｂに導くことがで
き、塩化水素の装入口２ａ側への移動を良好に阻止する
ことが可能である。[0023] Thus, the gas vent pipe 5a, the proper placement of 5b, it is possible to prevent the occurrence of NIC1 2 and FeCl 2, the low temperature side of the casing 2, a screw 3
It becomes possible to suppress the progress of corrosion due to chemical changes of d, 3e and paddle 3g. Then, the degassing pipes 5a, 5
Since the screws 3e and 3f are located in the portion corresponding to the b, the gas flow can be led to the degassing pipes 5a and 5b more quickly than abutment with the paddles 3g and 3h. Movement to the side can be prevented well.
【００２４】また、低温側のケーシング２にはフェノー
ル樹脂等によるコーティング層２を設け、またリテーナ
リング３ｃも樹脂製であるので、塩化水素による腐食が
防止される。そして、低温側のスクリュー３ｄ，３ｅ及
びこれらの間のパドル３ｇは、耐塩化水素性の高い合金
によって製作しているので、塩化水素の流入があって
も、その表面の腐食が急激に進むことはない。The casing 2 on the low temperature side is provided with a coating layer 2 of phenol resin or the like, and the retainer ring 3c is also made of resin, so that corrosion by hydrogen chloride is prevented. And since the screws 3d and 3e on the low temperature side and the paddle 3g between them are made of an alloy having high resistance to hydrogen chloride, even if there is an inflow of hydrogen chloride, the corrosion of the surface of the screws rapidly progresses. There is no.
【００２５】更に、装入口２ａ側のランタンリング３ｂ
には供給管４から不活性ガスが供給されているので、軸
封も確実に行える。さらに、外部からの水分の侵入も防
止され、塩酸が生じ難い内部雰囲気を維持することがで
きる。Further, the lantern ring 3b on the side of the charging port 2a
Is supplied with an inert gas from the supply pipe 4, the shaft can be sealed securely. Further, intrusion of moisture from the outside is prevented, and an internal atmosphere in which hydrochloric acid is unlikely to be generated can be maintained.
【００２６】[0026]
【発明の効果】本発明では、主に塩化ビニールの脱塩素
化によって生じる塩化水素と金属の間の化学反応が発生
し難い内部環境となるようにガスの排出を行わせること
で、低温域の部材の腐食が防止できると同時に、これら
の部材を耐塩化水素材としたことによって、塩化水素の
発生があっても腐食の急激な進行を阻むことができる。
このため、低温腐食が避けられなかった従来構造に比
べ、耐食性が格段に向上し、ランニングコストの低減も
可能となる。According to the present invention, gas is discharged so as to provide an internal environment in which a chemical reaction between hydrogen chloride and a metal, which is mainly caused by dechlorination of vinyl chloride, does not easily occur. Corrosion of the members can be prevented, and at the same time, if these members are made of a chloride-resistant material, rapid progress of corrosion can be prevented even if hydrogen chloride is generated.
For this reason, compared with the conventional structure in which low-temperature corrosion was unavoidable, the corrosion resistance is remarkably improved, and the running cost can be reduced.
【図１】本発明の押出機の一実施例を示す縦断面図であ
る。FIG. 1 is a longitudinal sectional view showing one embodiment of an extruder of the present invention.
【図２】押出機前後の油化装置の配置を示す概略図であ
る。FIG. 2 is a schematic diagram showing an arrangement of an oiling device before and after an extruder.
【図３】廃プラスチックの油化処理の工程を示すフロー
である。FIG. 3 is a flow chart showing a process of liquefying waste plastic.
１ 押出機 ２ ケーシング ２ａ 装入口 ２ｂ 排出口 ３ 回転軸 ３ａ 軸受 ３ｂ ランタンリング ３ｃ リテーナリング ３ｄ スクリュー ３ｅ スクリュー ３ｆ スクリュー ３ｇ パドル ３ｈ パドル ４ 供給管 ５ａ ガス抜き管 ５ｂ ガス抜き管 DESCRIPTION OF SYMBOLS 1 Extruder 2 Casing 2a Loading inlet 2b Discharge port 3 Rotating shaft 3a Bearing 3b Lantern ring 3c Retainer ring 3d Screw 3e Screw 3f Screw 3g Paddle 3h Paddle 4 Supply pipe 5a Gas release pipe 5b Gas release pipe
フロントページの続き (72)発明者 松田 健志 福岡県北九州市戸畑区大字中原46−59 新日本製鐵株式会社 機械・プラント事 業部内 (72)発明者 田中 正秀 福岡県北九州市戸畑区大字中原46−59 新日本製鐵株式会社 機械・プラント事 業部内 (56)参考文献 特開 昭62−151317（ＪＰ，Ａ) 特開 平４−275105（ＪＰ，Ａ) 特開 昭57−100039（ＪＰ，Ａ) 特開 昭61−272119（ＪＰ，Ａ) 特開 平５−245463（ＪＰ，Ａ) (58)調査した分野(Int.Cl.6，ＤＢ名) B29B 17/00 - 17/02 B29B 7/84 B29C 47/00 - 47/36 Continued on the front page (72) Inventor Kenshi Matsuda 46-59 Nakahara, Tobata-ku, Kitakyushu-shi, Fukuoka Nippon Steel Corporation Machinery & Plant Business Department (72) Inventor Masahide Tanaka 46, Oaza-Nakahara, Tobata-ku, Kitakyushu, Fukuoka -59 Nippon Steel Corporation Machinery & Plant Division (56) References JP-A-62-151317 (JP, A) JP-A-4-275105 (JP, A) JP-A-57-100039 (JP, A) A) JP-A-61-272119 (JP, A) JP-A-5-245463 (JP, A) (58) Fields investigated (Int. Cl. 6 , DB name) B29B 17/00-17/02 B29B 7 / 84 B29C 47/00-47/36
Claims (1)
溶融後の原料を原料混合槽へ排出する排出口と、前記装
入口から排出口まで原料を搬送するフィーダと、前記原
料を一次溶融する加熱系と、該加熱系によって加熱され
発生する、ケーシング内のガスを外気に開放するガス抜
き路を原料の搬送方向に複数個備えた押出機において、
前記ケーシングの装入口側の胴回りに冷却チャンバを、
排出口側の胴回りに加熱チャンバを各々形成し、前記フ
ィーダの構成を回転軸の軸方向にスクリューとパドルと
を交互に配設せしめ、前記ガス抜き路の配設位置をケー
シングの加熱チャンバゾーンで且つフィーダのスクリュ
ー配設の位置とし、前記装入口側のケーシング内周面に
耐食層を形成すると共に前記加熱系の始端までのフィー
ダを耐塩化水素材としたことを特徴とする廃プラスチッ
ク再生処理設傭における押出機構造。1. A loading port for a raw material of waste plastic, a discharge port for discharging a raw material after primary melting to a raw material mixing tank, a feeder for conveying a raw material from the charging port to the discharge port, and a primary melting of the raw material. Heating system , heated by the heating system
Degassing to release generated gas in the casing to the outside air
The can path extruding machine odor provided with a plurality in the conveying direction of the material,
A cooling chamber around the barrel on the charging inlet side of the casing,
Heating chambers are formed around the discharge-side body, and
The configuration of the feeder consists of a screw and paddle in the axial direction of the rotating shaft.
Are alternately arranged, and the location of the gas vent path is
Screw in the heating chamber zone of the shingle and feeder
The position of the over arranged, in waste plastics recycling process 設傭, characterized in that the feeder to the beginning of the heating system was salt Kamizu material to form a corrosion-resistant layer on the casing inner circumferential surface of the spout side Extruder structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5153946A JP2895714B2 (en) | 1993-06-24 | 1993-06-24 | Extruder structure in waste plastic recycling facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5153946A JP2895714B2 (en) | 1993-06-24 | 1993-06-24 | Extruder structure in waste plastic recycling facility |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH079448A JPH079448A (en) | 1995-01-13 |
| JP2895714B2 true JP2895714B2 (en) | 1999-05-24 |
Family
ID=15573539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5153946A Expired - Fee Related JP2895714B2 (en) | 1993-06-24 | 1993-06-24 | Extruder structure in waste plastic recycling facility |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2895714B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4278193B2 (en) * | 1997-07-10 | 2009-06-10 | シナネン株式会社 | Waste plastic thermal decomposition reactor |
| JP3974316B2 (en) * | 2000-07-31 | 2007-09-12 | ニチハ株式会社 | Method for producing a wooden molded body |
| JP2006063346A (en) * | 2005-10-19 | 2006-03-09 | Japan Steel Works Ltd:The | Treatment equipment for waste plastics |
| JP4809066B2 (en) * | 2006-01-18 | 2011-11-02 | 新日本製鐵株式会社 | Exhaust method of waste plastic high density volume reduction molding machine |
-
1993
- 1993-06-24 JP JP5153946A patent/JP2895714B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH079448A (en) | 1995-01-13 |
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