JPH0465486A - Device of removing fine particle in plastics decomposition tank of rotary kiln type - Google Patents
Device of removing fine particle in plastics decomposition tank of rotary kiln typeInfo
- Publication number
- JPH0465486A JPH0465486A JP2178140A JP17814090A JPH0465486A JP H0465486 A JPH0465486 A JP H0465486A JP 2178140 A JP2178140 A JP 2178140A JP 17814090 A JP17814090 A JP 17814090A JP H0465486 A JPH0465486 A JP H0465486A
- Authority
- JP
- Japan
- Prior art keywords
- decomposition tank
- fine particles
- decomposition
- rotary kiln
- tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000354 decomposition reaction Methods 0.000 title claims abstract description 73
- 239000010419 fine particle Substances 0.000 title claims abstract description 23
- 239000004033 plastic Substances 0.000 title claims abstract description 20
- 229920003023 plastic Polymers 0.000 title claims abstract description 20
- 238000007790 scraping Methods 0.000 claims description 23
- 239000004215 Carbon black (E152) Substances 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 8
- 229930195733 hydrocarbon Natural products 0.000 claims description 8
- 150000002430 hydrocarbons Chemical class 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 239000002184 metal Substances 0.000 description 16
- 239000004576 sand Substances 0.000 description 8
- 239000003054 catalyst Substances 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000003809 water extraction Methods 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
- Y02P20/143—Feedstock the feedstock being recycled material, e.g. plastics
Landscapes
- Coke Industry (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、ロータリーキルン式プラスチック分解槽の内
壁面に付着堆積された微粒子を除去する装置に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an apparatus for removing fine particles deposited on the inner wall surface of a rotary kiln type plastic decomposition tank.
（従来の技術）
一般に、熱可塑性樹脂を熱分解すると炭化水素ガスが発
生する。この炭化水素ガス中には未分解ポリマー、炭化
物等の微粒子が含有されており、この微粒子が分解槽の
内壁面に付着堆積される。(Prior Art) Generally, when a thermoplastic resin is thermally decomposed, hydrocarbon gas is generated. This hydrocarbon gas contains fine particles such as undecomposed polymers and carbides, and these fine particles adhere and accumulate on the inner wall surface of the decomposition tank.
この結果、加熱炉から分解槽への熱伝導が妨げられて、
プラスチックの熱分解能力が低下するのみならず、場合
によっては運転を中止せざるを得ない事態を招えていた
。As a result, heat conduction from the heating furnace to the decomposition tank is hindered.
Not only did the ability to thermally decompose plastics decline, but in some cases, operations had to be halted.
そこで、従来の、ロータリーキルン式分解槽の内壁面に
付着堆積された微粒子の除去装置としては、分解槽内に
多量の砂、金属片等、或はこの砂、金属片等の代りに粒
状の触媒を投入して、同分解槽の回転に伴なって目砂や
金属片等に同分解槽の内壁面に付着された微粒子を付着
替させることにより、同分解槽内壁面に付着の微粒子を
除去しようとするものであった。Therefore, as a conventional device for removing fine particles deposited on the inner wall surface of a rotary kiln type decomposition tank, a large amount of sand, metal pieces, etc. is placed inside the decomposition tank, or a granular catalyst is used instead of the sand, metal pieces, etc. is introduced into the tank, and as the tank rotates, the fine particles attached to the inner wall of the tank are removed by replacing them with top sand, metal pieces, etc. It was something I was trying to do.
（発明が解決しようとする課題）
上述した従来例によれば、微粒子を付着した多量の砂、
金属片、粒状の触媒等は分解槽より取り出して、これを
再利用の為に燃焼して、微粒子を除去しなければならず
、この結果、次のような重大な問題点があった。即ち、
（イ）砂、金属片、触媒等を分解槽より取り出す際に、
同分解槽の熱量を大量に取り去り、同分解槽の熱効率を
低下させていた。(Problems to be Solved by the Invention) According to the conventional example described above, a large amount of sand with fine particles attached,
Metal pieces, granular catalysts, etc. must be taken out of the decomposition tank and burned for reuse to remove fine particles, resulting in the following serious problems. (a) When removing sand, metal pieces, catalysts, etc. from the decomposition tank,
A large amount of heat was removed from the decomposition tank, reducing the thermal efficiency of the decomposition tank.
（１７） 砂、金属片、粒状の触媒等を燃焼する装置
を必要であるのみならず、燃焼手間がか＼す、極めて不
経済的であった。(17) Not only was it necessary to have a device for burning sand, metal pieces, granular catalysts, etc., but the combustion process was time-consuming and extremely uneconomical.
そこで、本発明のロータリーキルン式プラスチック分解
槽における微粒子除去装置は、上述した従来例の各問題
点を解決すべく意図して開発されたものである。Therefore, the particulate removal device for a rotary kiln type plastic decomposition tank of the present invention was developed with the intention of solving the problems of the conventional example described above.
（課題を解決するための手段）
本発明のロータリーキルン式プラスチック分解槽におけ
る微粒子除去装置は、分解槽内に、該分解槽内壁面に付
着堆積された微粒子等を除去する掻取部材を内在するよ
うにしたものである。(Means for Solving the Problems) The particulate removal device in the rotary kiln type plastic decomposition tank of the present invention has a scraping member built into the decomposition tank for removing particulates etc. deposited on the inner wall surface of the decomposition tank. This is what I did.
（作 用）
本発明のロータリーキルン式プラスチック分解槽におけ
る微粒子除去装置は、分解槽の回転運動を利用して同分
解槽内壁面に付着の上記微粒子を分解槽内にフリーに、
且つ、ランダムに内在された掻取部材で掻き取り、これ
を同分解槽内底部に溜まっている分解残湯中へ落し込み
、これを上記分解残湯と共に分解槽外へ排出して処分す
ることができる。従って、本発明によれば、長期に亘っ
て掻取部材の使用が可能であるから、分解槽の熱量を奪
うことなく、しかも熱効率の良い状態下で連続運転が可
能である。更に、本発明は従来例のように微粒子を付着
させた大量の砂等を燃焼する燃焼装置、燃焼手間を必要
としないから、極めて経済性に優れている。(Function) The particulate removal device in a rotary kiln type plastic decomposition tank of the present invention utilizes the rotational movement of the decomposition tank to free the above-mentioned particulates attached to the inner wall surface of the decomposition tank into the decomposition tank.
In addition, scraping with a scraping member randomly included, dropping this into the decomposed residual molten metal accumulated at the bottom of the decomposition tank, and discharging this together with the decomposed residual molten metal to the outside of the decomposition tank for disposal. I can do it. Therefore, according to the present invention, since the scraping member can be used for a long period of time, continuous operation is possible without depriving the decomposition tank of heat and under conditions with good thermal efficiency. Further, the present invention is extremely economical because it does not require a combustion device or labor for burning a large amount of sand or the like to which fine particles are attached, unlike the conventional example.
（実施例）
図面は本発明のロータリーキルン式プラスチック分解槽
における微粒子除去装置の一実施例を示す。図面におい
て、（１）は加熱炉で、この加熱炉（１）にはオイルバ
ーナ（１ａ）、ガスバーナ（ｌｂ）か夫々接近して設け
られていると共に、排気Ｄ （ｌｃ）か設けられている
。（２）は分解槽で、この分解槽（２）は上記加熱炉（
１）に後述する回転機構を介して回転自在に且つ、プラ
スチック供給側より分解残湯抜取側が若干低くなるよう
に傾斜して横設されている。この分解槽（２）の内部に
は多数の掻取部材（Ｓ）がフリーに且つ、ランダムに内
在されており、この掻取部材（Ｓ）は分解槽（２）の内
壁面に付着した上記微粒子（８）を同分解槽（２）の回
転運動と協動して掻き取り、これを分解残湯中へ落し込
む機能を有する。この掻取部材（Ｓ）は高温に充分に耐
え得る例えば、金属、セラミック等が利用され基本的に
は板状であって、その形状は特定の形状に限定されるこ
となく、例えば、円形、楕円形、コーナ部分を面取り加
工された多角形、その他任意形のもの、又は、上記各形
状の掻取部材（Ｓ）の中央部に比較的大きな孔を穿った
もの、又は、上記各形状の掻取部材に規則的に或は不規
則的に比較的小さい孔を複数穿ったものとすることがで
きる。(Example) The drawing shows an example of a particulate removal device in a rotary kiln type plastic decomposition tank of the present invention. In the drawing, (1) is a heating furnace, and this heating furnace (1) is provided with an oil burner (1a) and a gas burner (lb) close to each other, as well as an exhaust D (lc). . (2) is a decomposition tank, and this decomposition tank (2) is the heating furnace (
1) It is rotatable via a rotation mechanism which will be described later, and is installed horizontally at an angle so that the decomposed residual metal removal side is slightly lower than the plastic supply side. A large number of scraping members (S) are included freely and randomly inside this decomposition tank (2), and these scraping members (S) remove the above-mentioned scraping members (S) attached to the inner wall surface of the decomposition tank (2). It has the function of scraping off the fine particles (8) in cooperation with the rotational movement of the decomposition tank (2) and dropping them into the decomposed molten metal. This scraping member (S) is made of metal, ceramic, etc. that can sufficiently withstand high temperatures, and is basically plate-shaped, and its shape is not limited to a specific shape, but may be circular, circular, An oval, a polygon with chamfered corners, or any other arbitrary shape, or a scraping member (S) of each of the above shapes with a relatively large hole in the center, or any of the above shapes. The scraping member may have a plurality of relatively small holes drilled therein regularly or irregularly.
（２ａ）は分解槽（２）のプラスチック供給側端部にシ
ール用パツキン（３ａ）を介在して支承された固定管体
で、この固定管体（２ａ）にはプラスチックを分解槽（
２）内に供給するスクリューフィダ（２ｂ）と、分解槽
（２）内で発生する炭化水素ガスを取り出す取出口（２
ｃ）とが夫々設けられている。（２ｄ）は分解槽（２）
の分解残湯抜取側端部にシール用パツキン（３ｂ）を介
在して支承された固定管体で、この固定管体（２ｄ）に
は分解槽（２）内の分解残湯（７）を抜き取る分解残湯
抜取パイプ（２ｅ）か設けられている。(2a) is a fixed tube supported at the end of the plastic supply side of the decomposition tank (2) with a sealing gasket (3a) interposed therebetween.
2) A screw feeder (2b) to be supplied into the tank and an outlet (2) to take out hydrocarbon gas generated in the decomposition tank (2).
c) are provided respectively. (2d) is the decomposition tank (2)
A fixed pipe body is supported at the end of the decomposed residual molten metal with a sealing gasket (3b) interposed therebetween, and the decomposed residual molten metal (7) in the decomposition tank (2) is held in this fixed pipe body (2d). A decomposition residual hot water extraction pipe (2e) is also provided.
（４ａ）は分解槽（２）のスクリューライダ側端部外周
に固装されたタイヤであり、（５ａ）はこのタイヤ（４
ａ）を支持しつつ回転を伝達する駆動ローラで、この駆
動ローラ（５ａ）には駆動源（６）が連結されている。(4a) is a tire fixed to the outer periphery of the screw rider side end of the decomposition tank (2), and (5a) is this tire (4a).
A drive roller (5a) that transmits rotation while supporting the drive roller (5a) is connected to a drive source (6).
（４ｂ）は分解槽（２）の分解残湯抜取側端部に固装さ
れたタイヤで、このタイヤ（４ｂ）は支持ローラ（５ｂ
）で支持されている。(4b) is a tire fixed to the end of the decomposition tank (2) on the decomposition residual hot water extraction side, and this tire (4b) is attached to the support roller (5b
) is supported.
上述した構成において、駆動ローラ（５ａ）を回転する
ことにより、タイヤ（４ａ）を介して分解槽（２）が回
転され、この分解槽（２）の回転下において、プラスチ
ックをプラスチックフィダー（２ｂ〉により分解槽（２
）内に供給する。一方、加熱炉（１）の各バーナ（ｌａ
）、 （ｌｂ）を燃焼させて、上記分解槽（２）を所定
温度に加熱する。この加熱により、上記分解槽（２）内
のプラスチックは熱分解されて、炭化水素ガスが得られ
る。この炭化水素ガスは図示されさる処理装置により最
終的には再生油とガスとに分離処理される。In the above-described configuration, by rotating the drive roller (5a), the decomposition tank (2) is rotated via the tire (4a), and under the rotation of this decomposition tank (2), the plastic is transferred to the plastic feeder (2b). Decomposition tank (2
). On the other hand, each burner (la
), (lb) to heat the decomposition tank (2) to a predetermined temperature. By this heating, the plastic in the decomposition tank (2) is thermally decomposed and hydrocarbon gas is obtained. This hydrocarbon gas is finally separated into recycled oil and gas by the illustrated processing device.
上記プラスチックを上記熱分解すると、大部分は炭化水
素ガスとなり、この炭化水素ガス中には未分解ポリマー
と炭化物等の微粒子（８）が含有されている。この微粒
子（８）が上記分解槽（２）の内壁面に付着堆積される
、この付着堆積された微粒子（８）は分解槽（２）内に
内在されている掻取部材（Ｓ）で分解残湯中へと掻き落
される。即ち、掻取部材（Ｓ）は分解槽（２）内にフリ
ーに且つランダムに内在されているので、一部の掻取部
材（Ｓ）は分解槽（２）の底部側から同分解槽（２）の
回転方向上部側へ分解槽（２）の回転運動によって運ば
れて、ある上位置において、物理的バランスにより分解
槽（２）か回転しているにもかかわらず、定位置を確保
し、この状態可で、微粒子が第３図に示すように掻き取
られて底部側に溜っている分解残湯（７）の中に落され
る。又、上記以外の掻取部材（Ｓ）は物理的バランスに
より分解槽（２）が回転しているにもかかわらず、動か
ずに定位置を確保し、この状態可で上述した掻取部材（
Ｓ）と同じ作用が得られる。上述した掻取部材（Ｓ）の
作用により、分解槽（２）の内面に付着された微粒子を
確実に除去することができる。When the plastic is thermally decomposed, most of it becomes hydrocarbon gas, and this hydrocarbon gas contains fine particles (8) such as undecomposed polymer and carbide. The fine particles (8) are deposited on the inner wall surface of the decomposition tank (2), and the deposited fine particles (8) are decomposed by the scraping member (S) contained in the decomposition tank (2). It is scraped off into the remaining water. That is, since the scraping members (S) are freely and randomly included in the decomposition tank (2), some of the scraping members (S) are inserted into the decomposition tank (2) from the bottom side of the decomposition tank (2). 2) is carried to the upper side in the rotating direction by the rotational movement of the decomposition tank (2), and at a certain upper position, it maintains a fixed position even though the decomposition tank (2) is rotating due to physical balance. In this state, the fine particles are scraped off and dropped into the decomposed residual hot water (7) accumulated on the bottom side, as shown in FIG. In addition, the scraping members (S) other than those mentioned above do not move and maintain their fixed positions even though the decomposition tank (2) is rotating due to physical balance, and in this state, the above-mentioned scraping members (S)
The same effect as S) can be obtained. By the action of the scraping member (S) described above, fine particles attached to the inner surface of the decomposition tank (2) can be reliably removed.
尚、上記分解残湯（７）内に落し込まれた微粒子は分解
残湯抜取パイプ（２ｅ）により分解残湯（７）と共に分
解槽（２）外へ抜き取られる。Incidentally, the fine particles dropped into the decomposed residual hot water (7) are extracted to the outside of the decomposition tank (2) together with the decomposed residual hot water (7) through the decomposed residual hot water extraction pipe (2e).
（発明の効果）
本発明のロータリーキルン式プラスチック分解槽におけ
る微粒子除去装置は、分解槽の回転運動を利用して同分
解槽内壁面に付着堆積の微粒子を分解槽内にフリーに且
つ、ランダムに内在された掻取部材で掻き取り、これを
同分解槽内底部に溜っている分解残湯中へ落し込み、こ
れを分解残湯と共に分解槽外へ排出して処分することが
できる。(Effects of the Invention) The particulate removal device in a rotary kiln type plastic decomposition tank of the present invention utilizes the rotational movement of the decomposition tank to remove the particulates deposited on the inner wall surface of the decomposition tank freely and randomly. This can be scraped off with a scraping member, dropped into the residual decomposed molten metal accumulated at the bottom of the decomposition tank, and discharged together with the decomposed residual molten metal to the outside of the decomposition tank for disposal.
従って、本発明によれば、長期に亘って掻取部材の使用
か可能であるから、分解槽の熱量を奪うことなく、しか
も熱効率の良い状態下で連続運転か可能である。更に本
発明は従来のように微粒子を付着させた大量の砂、金属
片、粒状の触媒等を再利用の為に燃焼する燃焼装置並び
に燃焼手間が不要であるから極めて経済性に優れている
等の数々の効果を有する。Therefore, according to the present invention, since the scraping member can be used for a long period of time, continuous operation is possible without depriving the decomposition tank of heat and under conditions with good thermal efficiency. Furthermore, the present invention is extremely economical because it does not require a combustion device or combustion labor that burns a large amount of sand, metal pieces, granular catalyst, etc. to which fine particles are attached for reuse, as in the past. It has many effects.
図面は本発明のロータリーキルン式プラスチック分解槽
における微粒子除去装置の一実施例を示し、第１図は加
熱炉に分解槽を組み付けた状態の縦断面図、第２図は第
１図のＡ−Ａ線断面図、第３図は分解槽の内面に付着堆
積された微粒子を掻取部材で掻き取っている状態の説明
図である。
（１）・・・加熱炉、（２）・・・分解槽、（Ｓ）・・
・掻取部材、（８）・・・分解槽の内面に付着堆積され
た微粒子。The drawings show an embodiment of the particulate removal device in a rotary kiln type plastic decomposition tank of the present invention, and FIG. 1 is a longitudinal cross-sectional view of the decomposition tank assembled in a heating furnace, and FIG. The line cross-sectional view and FIG. 3 are explanatory diagrams showing a state in which fine particles deposited on the inner surface of the decomposition tank are being scraped off with a scraping member. (1)... Heating furnace, (2)... Decomposition tank, (S)...
- Scraping member (8)...fine particles deposited on the inner surface of the decomposition tank.
Claims (1)
解して炭化水素ガスを発生させる分解槽内に、該分解槽
内壁面に付着堆積された微粒子等を除去する掻取部材を
内在するようにしたことを特徴とするロータリーキルン
式プラスチック分解槽における微粒子除去装置。 ２）上記掻取部材は分解槽の内部に所要数フリーに且つ
ランダムに内在するようにしたことを特徴とする上記特
許請求の範囲第１項に記載したロータリーキルン式プラ
スチック分解槽における微粒子除去装置。[Scope of Claims] 1) Removal of fine particles, etc. that have adhered and accumulated on the inner wall surface of the decomposition tank in which plastic is pyrolyzed and hydrocarbon gas is generated by thermally decomposing plastic installed horizontally in a heating furnace so as to be rotatable. A particulate removal device in a rotary kiln type plastic decomposition tank, characterized in that a scraping member is incorporated therein. 2) The particulate removal device in a rotary kiln type plastic decomposition tank as set forth in claim 1, wherein the scraping members are provided in the decomposition tank in a free and random manner in the required number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2178140A JPH0465486A (en) | 1990-07-05 | 1990-07-05 | Device of removing fine particle in plastics decomposition tank of rotary kiln type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2178140A JPH0465486A (en) | 1990-07-05 | 1990-07-05 | Device of removing fine particle in plastics decomposition tank of rotary kiln type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0465486A true JPH0465486A (en) | 1992-03-02 |
Family
ID=16043344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2178140A Pending JPH0465486A (en) | 1990-07-05 | 1990-07-05 | Device of removing fine particle in plastics decomposition tank of rotary kiln type |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0465486A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012532965A (en) * | 2009-07-15 | 2012-12-20 | 斌 牛 | Coking prevention process in waste rubber or waste plastic oil production, its equipment, and decoking mechanism of oil production equipment |
-
1990
- 1990-07-05 JP JP2178140A patent/JPH0465486A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012532965A (en) * | 2009-07-15 | 2012-12-20 | 斌 牛 | Coking prevention process in waste rubber or waste plastic oil production, its equipment, and decoking mechanism of oil production equipment |
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