JPH0731845U - Plastic waste oilizer equipped with automatic residue removal device - Google Patents

Plastic waste oilizer equipped with automatic residue removal device

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Publication number
JPH0731845U
JPH0731845U JP6121993U JP6121993U JPH0731845U JP H0731845 U JPH0731845 U JP H0731845U JP 6121993 U JP6121993 U JP 6121993U JP 6121993 U JP6121993 U JP 6121993U JP H0731845 U JPH0731845 U JP H0731845U
Authority
JP
Japan
Prior art keywords
residue
reaction tank
thermal decomposition
decomposition reaction
plastic
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
Application number
JP6121993U
Other languages
Japanese (ja)
Inventor
武文 平藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kubota Corp
Original Assignee
Kubota Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kubota Corp filed Critical Kubota Corp
Priority to JP6121993U priority Critical patent/JPH0731845U/en
Publication of JPH0731845U publication Critical patent/JPH0731845U/en
Pending legal-status Critical Current

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Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

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  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

(57)【要約】 【目的】 プラスチック廃棄物油化装置の操業を停止す
ることなく残渣を自動的に分離回収して、連続操業を可
能にし、低沸点炭化水素油の製造能率を向上させ、残渣
分離回収装置１７により残渣から分離した溶融プラスチ
ックを熱分解反応槽３に還流させて低沸点炭化水素油の
回収率を向上させる。 【構成】 熱分解反応槽３の下端開口部を、遠心分離機
能を有する残渣分離回収装置１７に接続し、経時により
熱分解反応槽３内の底部に残渣が滞留しても、装置の操
業を継続した状態でポンプ２１Ｂを運転し、かつ弁１５
および弁１８を開いて、残渣と溶融プラスチックの一部
とを残渣分離回収装置１７に導入し、比重の大きい残渣
を残渣捕集タンク２２で捕集するとともに、溶融プラス
チックを循環系２１により熱分解反応槽３に還流させる
ようにしてある。 (57) [Abstract] [Purpose] Automatically separates and collects the residue without stopping the operation of the plastic waste oilification equipment, enabling continuous operation and improving the production efficiency of low boiling point hydrocarbon oil, The molten plastic separated from the residue by the residue separation / recovery device 17 is returned to the thermal decomposition reaction tank 3 to improve the recovery rate of the low boiling point hydrocarbon oil. [Structure] The lower end opening of the thermal decomposition reaction tank 3 is connected to a residue separation / recovery device 17 having a centrifugal separation function, and the operation of the device is maintained even if the residue remains at the bottom of the thermal decomposition reaction tank 3 over time. The pump 21B is operated continuously and the valve 15
And the valve 18 are opened to introduce the residue and a part of the molten plastic into the residue separation / recovery device 17, the residue having a large specific gravity is collected in the residue collection tank 22, and the molten plastic is thermally decomposed by the circulation system 21. The reaction tank 3 is refluxed.

Description

【考案の詳細な説明】[Detailed description of the device]

【０００１】[0001]

【産業上の利用分野】[Industrial applications]

本考案は、ポリオレフィン系プラスチックからガソリンその他の素原料として 有用な低沸点炭化水素油を製造するプラスチック廃棄物油化装置に係り、特に、 熱分解反応槽から残渣を自動的に回収し、かつ残渣とともに残渣分離回収装置に 導入された溶融プラスチックを残渣から分離して熱分解反応槽に還流させて再度 熱分解反応に供する技術に関する。 The present invention relates to a plastic waste oilification device for producing low boiling hydrocarbon oil useful as a raw material for gasoline and other materials from polyolefin plastics. In particular, the residue is automatically recovered from a pyrolysis reaction tank and In addition, the present invention relates to a technology for separating the molten plastic introduced into the residue separation / recovery device from the residue, returning the molten plastic to the pyrolysis reaction tank, and subjecting it again to the pyrolysis reaction.

【０００２】[0002]

【従来の技術】[Prior art]

従来、熱可塑性プラスチックの生産量の半分程度を占めているといわれるポリ オレフィン系プラスチックの再生利用のために、ポリオレフィン系プラスチック から低沸点低流動点を有する高品質の炭化水素油を製造するプラスチック廃棄物 油化装置が特開昭６３−１７８１９５号公報によって提案されている。 Plastic waste that produces high-quality hydrocarbon oils with low boiling points and low pour points from polyolefin-based plastics for reuse of poly-olefin-based plastics, which are said to have accounted for about half of thermoplastics production. An oil refiner has been proposed by Japanese Patent Laid-Open No. 63-178195.

【０００３】 このプラスチック廃棄物油化装置は、図３に示すように、熱分解反応装置１が 原料供給部２、熱分解反応槽３およびその上部に設けられた攪拌機４からなり、 原料供給部２の底部には、その端部を熱分解反応槽３内の上部に臨ませたスクリ ューフィーダ５が設けられている。熱分解反応槽３内には溶融原料の高さ位置を 測定するレベル計６と熱分解反応槽３内温度を測定する温度計７が挿入されてい る。As shown in FIG. 3, in this plastic waste oiling apparatus, a thermal decomposition reaction apparatus 1 is composed of a raw material supply unit 2, a thermal decomposition reaction tank 3 and an agitator 4 provided on the upper portion thereof. The bottom of 2 is provided with a screen feeder 5 whose end faces the upper part of the thermal decomposition reaction tank 3. A level meter 6 for measuring the height position of the molten raw material and a thermometer 7 for measuring the temperature inside the thermal decomposition reaction tank 3 are inserted in the thermal decomposition reaction tank 3.

【０００４】 一方、熱分解反応装置１の上部に触媒反応槽８が設けられ、触媒として粒径３ mm程度のゼオライト（ＨーＺＳＭー５）が充填され、この触媒層に温度計９が挿 入される。また、熱分解反応槽３の下部にガスバーナ１０が設けられ、熱分解反 応槽３内が所定の熱分解温度（390 〜500 ℃、好ましくは420 〜470 ℃）に保持 され、触媒反応部８内は熱分解反応槽３側から供給される蒸気状生成物の熱量と 図示されていない外部ヒータの加熱によって、所定の温度（250 〜350 ℃）に保 持される。また、触媒反応槽８の後部には、水冷コンデンサー１１を有する冷却 管１２が接続され、この冷却管１２の先端に貯油槽１３，１４が設けられている 。On the other hand, a catalytic reaction tank 8 is provided above the thermal decomposition reaction apparatus 1, zeolite (H-ZSM-5) having a particle size of about 3 mm is filled as a catalyst, and a thermometer 9 is inserted into this catalyst layer. Be entered. Further, a gas burner 10 is provided below the thermal decomposition reaction tank 3, the inside of the thermal decomposition reaction tank 3 is maintained at a predetermined thermal decomposition temperature (390 to 500 ° C., preferably 420 to 470 ° C.), and the catalytic reaction part 8 is provided. The inside is maintained at a predetermined temperature (250 to 350 ° C.) by the heat quantity of the vaporous product supplied from the side of the thermal decomposition reaction tank 3 and the heating of an external heater (not shown). A cooling pipe 12 having a water-cooled condenser 11 is connected to the rear of the catalytic reaction tank 8, and oil storage tanks 13 and 14 are provided at the tip of the cooling pipe 12.

【０００５】 したがって、原料供給部２に投入されたポリオレフィン系プラスチックは、ス クリューフィーダ５により軟化もしくは溶融されて熱分解反応槽３内に供給され 、所定の温度により熱分解を受ける。熱分解により生成した蒸気状生成物は、触 媒反応槽８を通過する過程で所定の温度により転加されて低分子量化される。低 分子量化された生成物は冷却管１２を通過する過程で＋11.5℃に冷却され、低沸 点炭化水素油となって貯油槽１３，１４に捕集される。Therefore, the polyolefin-based plastic charged into the raw material supply unit 2 is softened or melted by the screw feeder 5 and supplied into the thermal decomposition reaction tank 3, and undergoes thermal decomposition at a predetermined temperature. The vaporous product generated by the thermal decomposition is converted into a low molecular weight by being transferred at a predetermined temperature in the process of passing through the catalyst reaction tank 8. The product having the reduced molecular weight is cooled to + 11.5 ° C. in the process of passing through the cooling pipe 12, and becomes low boiling point hydrocarbon oil and is collected in the oil storage tanks 13 and 14.

【０００６】 ところで、この種のプラスチック廃棄物油化装置では、経時により熱分解反応 槽３内の底部に炭化物などの残渣が沈下して滞留すると、熱分解反応効率を低下 させ、高品質の低沸点炭化水素油の製造が妨げられる。したがって、従来のプラ スチック廃棄物油化装置では、操業を停止して、熱分解反応槽３から残渣を取出 す煩わしい作業を定期的に行う必要がある。これにより、連続操業が妨げられ低 沸点炭化水素油の製造能率低下の一因になっていた。By the way, in this type of plastic waste oiling apparatus, when a residue such as a carbide sinks and stays at the bottom of the thermal decomposition reaction tank 3 with the passage of time, the thermal decomposition reaction efficiency decreases, and high quality low The production of boiling hydrocarbon oils is hindered. Therefore, in the conventional plastic waste oilification device, it is necessary to stop the operation and periodically perform the troublesome work of removing the residue from the thermal decomposition reaction tank 3. As a result, continuous operation was hindered, which contributed to a decrease in production efficiency of low boiling point hydrocarbon oils.

【０００７】[0007]

【考案が解決しようとする課題】[Problems to be solved by the device]

解決しようとする問題点は、熱分解反応槽から残渣を取出す煩わしい作業を定 期的に行う必要があため、プラスチック廃棄物油化装置の連続操業が妨げられ低 沸点炭化水素油の製造能率を低下させている点である。 The problem to be solved is that it is necessary to regularly perform the troublesome work of removing the residue from the thermal decomposition reaction tank, which hinders the continuous operation of the plastic waste oilification equipment and reduces the production efficiency of low boiling point hydrocarbon oil. This is the point of decreasing.

【０００８】[0008]

【課題を解決するための手段】[Means for Solving the Problems]

本考案は、ポリオレフィン系プラスチックを熱分解させる熱分解反応槽と、こ の熱分解反応槽で発生した蒸気状生成物を導いて接触転化させる触媒反応槽を備 えたプラスチック廃棄物油化装置において、前記熱分解反応槽に開閉手段を介し て残渣分離回収装置が接続されているとともに、該残渣分離回収装置によって残 渣から分離された溶融プラスチックを熱分解反応槽に還流させる循環系が設けら れていることを特徴とし、プラスチック廃棄物油化装置の操業を停止することな く熱分解反応槽から残渣を自動的に分離回収して、連続操業を可能にし、低沸点 炭化水素油の製造能率を向上させ、かつ残渣とともに残渣分離回収装置に導入さ れた溶融プラスチックを残渣から分離して熱分解反応槽に還流させて再度熱分解 反応に供し、低沸点炭化水素油の回収率を向上させる目的を達成した。 The present invention relates to a plastic waste oilification apparatus equipped with a thermal decomposition reaction tank for thermally decomposing a polyolefin-based plastic and a catalytic reaction tank for guiding and catalytically converting vaporous products generated in the thermal decomposition reaction tank. A residue separating / collecting device is connected to the thermal decomposition reaction tank via an opening / closing means, and a circulation system is provided for returning the molten plastic separated from the residue by the residue separating / collecting device to the thermal decomposition reaction tank. In this way, the residue is automatically separated and collected from the thermal decomposition reaction tank without stopping the operation of the plastic waste oilification equipment, enabling continuous operation and improving the production efficiency of low boiling point hydrocarbon oil. In addition, the molten plastic that has been introduced into the residue separation and recovery device together with the residue is separated from the residue and is returned to the pyrolysis reaction tank to be subjected to the pyrolysis reaction again. And achieve the purpose of improving the recovery rate of the point hydrocarbon oil.

【０００９】[0009]

【作用】[Action]

本考案によれば、熱分解反応槽内の底部に沈下して滞留している残渣は、開閉 手段を開くことにより、熱分解反応槽内の溶融プラスチックの一部ととも残渣分 離回収装置に導入され、この残渣を分離して回収することができる。一方、残渣 分離回収装置に導入された前記溶融プラスチックを残渣から分離して熱分解反応 槽に還流させて再度熱分解反応に供することもできる。 According to the present invention, the residue that has settled down and accumulated at the bottom of the thermal decomposition reaction tank is opened to the residue separation recovery device together with a part of the molten plastic in the thermal decomposition reaction tank by opening the opening / closing means. It is introduced and this residue can be separated and recovered. On the other hand, it is also possible to separate the molten plastic introduced into the residue separation / recovery apparatus from the residue, return it to the pyrolysis reaction tank, and subject it again to the pyrolysis reaction.

【００１０】[0010]

【実施例】【Example】

以下、本考案の実施例を図面に基づいて説明する。図１は本考案の概略構成図 を示す。なお、前記図３の従来例と同一もしくは相当部分に同一符号を付して説 明する。図１において、熱分解反応装置１は、原料供給部２、下端部を下側に向 かって漸次縮径するコーン状に形成した熱分解反応槽３およびその上部に設けら れた攪拌機４からなり、原料供給部２の底部には、その端部を熱分解反応槽３内 の上部に臨ませたスクリューフィーダ５が設けられている。熱分解反応槽３内に は溶融原料の高さ位置を測定するレベル計６と熱分解反応槽３内温度を測定する 温度計７が挿入されている。 Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a schematic block diagram of the present invention. It should be noted that the same or corresponding parts as those in the conventional example shown in FIG. In FIG. 1, a thermal decomposition reaction apparatus 1 comprises a raw material supply unit 2, a thermal decomposition reaction tank 3 formed in a cone shape whose lower end is gradually reduced in diameter downward, and a stirrer 4 provided above it. A screw feeder 5 is provided at the bottom of the raw material supply unit 2 with its end facing the upper part of the thermal decomposition reaction tank 3. Into the thermal decomposition reaction tank 3, a level meter 6 for measuring the height position of the molten raw material and a thermometer 7 for measuring the temperature inside the thermal decomposition reaction tank 3 are inserted.

【００１１】 一方、熱分解反応装置１の上部に触媒反応槽８が設けられ、触媒として粒径３ mm程度のゼオライト（ＨーＺＳＭー５）が充填され、この触媒層に温度計９が挿 入される。また、熱分解反応槽３の下部にガスバーナ１０が設けられ、熱分解反 応槽３内が所定の熱分解温度（390 〜500 ℃、好ましくは420 〜470 ℃）に保持 され、触媒反応部８内は熱分解反応槽３側から供給される蒸気状生成物の熱量と 図示されていない外部ヒータの加熱によって、所定の温度（250 〜350 ℃）に保 持される。さらに、触媒反応槽８の後部には、水冷コンデンサー１１を有する冷 却管１２が接続され、この冷却管１２の先端に貯油槽１３，１４が設けられてい る。On the other hand, a catalytic reaction tank 8 is provided above the thermal decomposition reaction apparatus 1, zeolite (H-ZSM-5) having a particle size of about 3 mm is filled as a catalyst, and a thermometer 9 is inserted into this catalyst layer. Be entered. Further, a gas burner 10 is provided below the thermal decomposition reaction tank 3, the inside of the thermal decomposition reaction tank 3 is maintained at a predetermined thermal decomposition temperature (390 to 500 ° C., preferably 420 to 470 ° C.), and the catalytic reaction part 8 is provided. The inside is maintained at a predetermined temperature (250 to 350 ° C.) by the heat quantity of the vaporous product supplied from the side of the thermal decomposition reaction tank 3 and the heating of an external heater (not shown). Further, a cooling pipe 12 having a water-cooled condenser 11 is connected to the rear portion of the catalytic reaction tank 8, and oil storage tanks 13 and 14 are provided at the tip of the cooling pipe 12.

【００１２】 熱分解反応槽３の下端開口部は、弁１５を介設した取出管１６により残渣分離 回収装置１７に接続されている。すなわち、残渣分離回収装置１７は、図２に示 ように、遠心分離機能を有するサイクロンセパレータ状のもので、そのコーン状 本体部１７Ａの上部周壁に対して取出管１６が接線方向に挿入されている。そし て、コーン状本体部１７Ａの下端開口に弁１８を介設した残渣取出管１９が接続 され、残渣取出管１９の先端は残渣捕集タンク２０に開口している。一方、残渣 分離回収装置１７と熱分解反応槽３は、残渣分離回収装置１７によって残渣から 分離された溶融プラスチックを熱分解反応槽３に還流させる循環系２１を介して 互いに連通している。すなわち、循環系２１は、コーン状本体部１７Ａの上部蓋 １７Ｂの中央部を貫通してコーン状本体部１７Ａ内に挿入挿入された吸込管２１ Ａ、この吸込管２１Ａに吸込口を接続したポンプ２１Ｂおよびポンプ２１Ｂの吐 出口と熱分解反応槽３の内部を連通させる吐出管２１Ｃによって構成されている 。The lower end opening of the thermal decomposition reaction tank 3 is connected to a residue separation / recovery device 17 by an extraction pipe 16 provided with a valve 15. That is, as shown in FIG. 2, the residue separating / collecting device 17 is in the form of a cyclone separator having a centrifugal separation function, and the extraction pipe 16 is tangentially inserted into the upper peripheral wall of the cone-shaped main body 17A. There is. Then, a residue extraction pipe 19 with a valve 18 interposed is connected to the lower end opening of the cone-shaped main body 17A, and the tip of the residue extraction pipe 19 is open to the residue collection tank 20. On the other hand, the residue separation / recovery device 17 and the thermal decomposition reaction tank 3 are in communication with each other via a circulation system 21 for returning the molten plastic separated from the residue by the residue separation / recovery device 17 to the thermal decomposition reaction tank 3. That is, the circulation system 21 includes a suction pipe 21A which is inserted into the cone-shaped main body 17A through the central portion of the upper lid 17B of the cone-shaped main body 17A, and a pump having a suction port connected to the suction pipe 21A. 21B and a discharge port of the pump 21B and a discharge pipe 21C that connects the inside of the thermal decomposition reaction tank 3 to each other.

【００１３】 このような構成であれば、原料供給部２に投入されたポリオレフィン系プラス チックは、従来例と同様にスクリューフィーダ５により軟化もしくは溶融されて 熱分解反応槽３内に供給され、所定の温度により熱分解を受ける。熱分解により 生成した蒸気状生成物は、触媒反応槽８を通過する過程で所定の温度により転加 されて低分子量化される。低分子量化された生成物は冷却管１２を通過する過程 で＋11.5℃に冷却され、低沸点炭化水素油となって貯油槽１３，１４に捕集され る。なお、この場合、初期運転時のみ取出管１６に介設されている弁１５は閉じ られ、ポンプ２１Ｂは運転を停止しており、定常運転では弁１５を開きポンプ２ １Ｂは連続運転している。With such a configuration, the polyolefin-based plastic charged into the raw material supply section 2 is softened or melted by the screw feeder 5 and supplied into the thermal decomposition reaction tank 3 in the same manner as in the conventional example, and the predetermined amount is obtained. It undergoes thermal decomposition depending on the temperature. The vaporous product generated by the thermal decomposition is transferred at a predetermined temperature in the process of passing through the catalytic reaction tank 8 to have a low molecular weight. The product having a low molecular weight is cooled to + 11.5 ° C. in the process of passing through the cooling pipe 12, becomes low boiling point hydrocarbon oil, and is collected in the oil storage tanks 13 and 14. In this case, the valve 15 provided in the take-out pipe 16 is closed only during the initial operation, the pump 21B is stopped, and the valve 15 is opened during the steady operation to continuously operate the pump 21B. .

【００１４】 一方、経時により熱分解反応槽３内の底部に炭化物などの残渣が沈下して滞留 した場合には、前記プラスチック廃棄物油化装置の操業を継続したままの状態で 、循環系２１のポンプ２１Ｂを運転し、かつ取出管１６に介設されている弁１５ および残渣取出管１９に介設されている弁１８を開く。その結果、熱分解反応槽 ３内のコーン状の底部に沈下して滞留している残渣は、溶融プラスチックの一部 とともに取出管１６を通って残渣分離回収装置１７におけるコーン状本体部１７ Ａ内に流入して高速旋回し、遠心分離機能により比重の大きい残渣はコーン状本 体部１７Ａの下端開口に落下して、残渣取出管１９を通り残渣捕集タンク２０に 捕集される。一方、比重の小さい溶融プラスチックは、吸込管２１Ａを通ってポ ンプ２１Ｂに吸込まれ、ポンプ２１Ｂの吐出口から吐出管２１Ｃに吐出され、こ こから熱分解反応槽３内に還流されて熱分解反応に供される。定常運転時ポンプ ２１Ｂは連続運転しているが、油化装置の操業を停止したならば、ポンプ２１Ｂ の運転を停止し、かつ取出管１６に介設されている弁１５および残渣取出管２０ に介設されている弁１８をそれぞれ閉じればよい。On the other hand, when a residue such as a carbide is settled and accumulated at the bottom of the thermal decomposition reaction tank 3 with the passage of time, the circulation system 21 is operated while the operation of the plastic waste oilification apparatus is continued. The pump 21B is operated, and the valve 15 provided in the extraction pipe 16 and the valve 18 provided in the residue extraction pipe 19 are opened. As a result, the residue settling and staying at the cone-shaped bottom portion in the thermal decomposition reaction tank 3 passes through the extraction pipe 16 together with a part of the molten plastic, and inside the cone-shaped main body portion 17A of the residue separation / recovery device 17. The residue having a large specific gravity drops into the lower end opening of the cone-shaped main body portion 17A by the centrifugal separation function, and passes through the residue extraction pipe 19 to be collected in the residue collection tank 20. On the other hand, the molten plastic having a small specific gravity is sucked into the pump 21B through the suction pipe 21A, discharged from the discharge port of the pump 21B to the discharge pipe 21C, and then refluxed into the thermal decomposition reaction tank 3 to be thermally decomposed. Subject to the reaction. At the time of steady operation, the pump 21B is continuously operating, but if the operation of the oilification device is stopped, the operation of the pump 21B is stopped, and the valve 15 and the residue withdrawal pipe 20 installed in the withdrawal pipe 16 are stopped. It suffices to close each of the interposed valves 18.

【００１５】 このように、経時により熱分解反応槽３内の底部に炭化物などの残渣が沈下し て滞留しても、プラスチック廃棄物油化装置の操業を停止することなく、連続操 業下において残渣を自動的に分離回収できるので、低沸点炭化水素油の製造能率 を向上させることができる。しかも、残渣とともに残渣分離回収装置１７に導入 された溶融プラスチックを残渣から分離して熱分解反応槽３に還流させて再度熱 分解反応に供することができるので、低沸点炭化水素油の回収率が向上する。As described above, even if a residue such as a carbide sinks and remains at the bottom of the thermal decomposition reaction tank 3 with the passage of time, the operation of the plastic waste oilification device is not stopped and the operation is continued under continuous operation. Since the residue can be separated and collected automatically, the production efficiency of low boiling point hydrocarbon oil can be improved. Moreover, since the molten plastic introduced into the residue separation / recovery device 17 together with the residue can be separated from the residue and returned to the thermal decomposition reaction tank 3 to be subjected to the thermal decomposition reaction again, the recovery rate of the low boiling point hydrocarbon oil can be improved. improves.

【００１６】[0016]

【考案の効果】[Effect of device]

以上説明したように、本考案は、経時により熱分解反応槽内の底部に炭化物な どの残渣が沈下して滞留しても、簡単な操作によりプラスチック廃棄物油化装置 の操業を停止することなく、連続操業下において残渣を自動的に分離回収できる ので、低沸点炭化水素油の製造能率を向上させることが可能になる。しかも、残 渣とともに残渣分離回収装置に導入された溶融プラスチックを残渣から分離して 熱分解反応槽３に還流させて再度熱分解反応に供することができるので、低沸点 炭化水素油の回収率が向上する。 As explained above, according to the present invention, even if a residue such as a carbide subsides and stays at the bottom of the thermal decomposition reaction tank with the passage of time, the operation of the plastic waste oilification device is not stopped by a simple operation. Since the residue can be automatically separated and recovered under continuous operation, the production efficiency of low boiling point hydrocarbon oil can be improved. Moreover, since the molten plastic introduced into the residue separation / recovery device together with the residue can be separated from the residue and returned to the pyrolysis reaction tank 3 to be subjected to the pyrolysis reaction again, the recovery rate of the low boiling point hydrocarbon oil can be improved. improves.

【図面の簡単な説明】[Brief description of drawings]

【図１】本考案の一実施例を示す概略構成図である。FIG. 1 is a schematic configuration diagram showing an embodiment of the present invention.

【図２】本考案の要部を拡大して示す概略構成図であ
る。FIG. 2 is a schematic configuration diagram showing an enlarged main part of the present invention.

【図３】従来例の概略構成図である。FIG. 3 is a schematic configuration diagram of a conventional example.

【符号の説明】[Explanation of symbols]

３ 熱分解反応槽 ８ 触媒反応槽 １５ 弁（開閉手段） １７ 残渣分離回収装置 ２１ 循環系 3 Pyrolysis reaction tank 8 Catalytic reaction tank 15 Valve (opening / closing means) 17 Residue separation and recovery device 21 Circulation system

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項１】 ポリオレフィン系プラスチックを熱分解
させる熱分解反応槽と、この熱分解反応槽で発生した蒸
気状生成物を導いて接触転化させる触媒反応槽を備えた
プラスチック廃棄物油化装置において、前記熱分解反応
槽に開閉手段を介して残渣分離回収装置が接続されてい
るとともに、該残渣分離回収装置によって残渣から分離
された溶融プラスチックを熱分解反応槽に還流させる循
環系が設けられていることを特徴とする自動残渣取出し
装置を備えたプラスチック廃棄物油化装置。1. A plastic waste oilification apparatus comprising a thermal decomposition reaction tank for thermally decomposing a polyolefin plastic and a catalytic reaction tank for guiding and catalytically converting a vaporous product generated in the thermal decomposition reaction tank, A residue separating / collecting device is connected to the thermal decomposition reaction tank via an opening / closing means, and a circulation system is provided for returning the molten plastic separated from the residue by the residue separating / collecting device to the thermal decomposition reaction tank. A plastic waste oiling device equipped with an automatic residue extraction device, which is characterized in that
JP6121993U 1993-11-15 1993-11-15 Plastic waste oilizer equipped with automatic residue removal device Pending JPH0731845U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6121993U JPH0731845U (en) 1993-11-15 1993-11-15 Plastic waste oilizer equipped with automatic residue removal device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6121993U JPH0731845U (en) 1993-11-15 1993-11-15 Plastic waste oilizer equipped with automatic residue removal device

Publications (1)

Publication Number Publication Date
JPH0731845U true JPH0731845U (en) 1995-06-16

Family

ID=13164880

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6121993U Pending JPH0731845U (en) 1993-11-15 1993-11-15 Plastic waste oilizer equipped with automatic residue removal device

Country Status (1)

Country Link
JP (1) JPH0731845U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999024530A1 (en) * 1997-11-10 1999-05-20 Takeshi Kuroki Apparatus for decomposing waste plastics
CN113939578A (en) * 2019-04-17 2022-01-14 普鲁维亚有限公司 Plastic oiling plant for converting plastic waste into petrochemicals, corresponding cracking reactor and related process

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999024530A1 (en) * 1997-11-10 1999-05-20 Takeshi Kuroki Apparatus for decomposing waste plastics
JPH11140225A (en) * 1997-11-10 1999-05-25 Takeshi Kuroki Waste plastic decomposer
CN113939578A (en) * 2019-04-17 2022-01-14 普鲁维亚有限公司 Plastic oiling plant for converting plastic waste into petrochemicals, corresponding cracking reactor and related process
CN113939578B (en) * 2019-04-17 2023-04-04 普鲁维亚有限公司 Plastic oiling plant for converting plastic waste into petrochemicals, corresponding cracking reactor and related process
US11939529B2 (en) 2019-04-17 2024-03-26 Pruvia Gmbh Plastic-to-oil plant, according cracking reactor, and related methods for converting plastic waste into petrochemical products

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