JPH08100408A - Asphalt pavement waste reproducing device - Google Patents
Asphalt pavement waste reproducing deviceInfo
- Publication number
- JPH08100408A JPH08100408A JP23718094A JP23718094A JPH08100408A JP H08100408 A JPH08100408 A JP H08100408A JP 23718094 A JP23718094 A JP 23718094A JP 23718094 A JP23718094 A JP 23718094A JP H08100408 A JPH08100408 A JP H08100408A
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- deodorizing furnace
- waste material
- dryer
- asphalt pavement
- 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.)
- Granted
Links
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は道路舗装廃材を加熱再生
するアスファルト舗装廃材再生装置に関し、特に排ガス
の臭気成分を燃焼させる脱臭炉を連結したアスファルト
舗装廃材再生装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an asphalt pavement waste material recycling apparatus for heating and recycling road pavement waste materials, and more particularly to an asphalt pavement waste material recycling apparatus connected with a deodorizing furnace for burning odorous components of exhaust gas.
【０００２】[0002]
【従来の技術】道路工事等によって掘り起こされたアス
ファルト舗装廃材（以下「廃材」という）の再生にはア
スファルトプラントの加熱装置であるドライヤとほぼ同
構造をした再生用の廃材ドライヤが採用されている。こ
の廃材ドライヤは円筒状ドラムを回転自在に傾斜支持
し、ドラム内周壁に多数周設した鋼板製の掻き上げ羽根
によって廃材を掻き上げながら転動流下させる間に熱風
と接触させ、所望の温度まで加熱昇温して廃材再生を行
なっている。2. Description of the Related Art For the recycling of asphalt pavement waste material (hereinafter referred to as "waste material") dug up due to road construction, etc., a waste material dryer for recycling, which has almost the same structure as a dryer that is a heating device of an asphalt plant, is used. . This waste material dryer rotatably supports a cylindrical drum rotatably, and makes contact with hot air while rolling up the waste material while rolling it up by scraping blades made of steel plates that are provided around the inner peripheral wall of the drum to a desired temperature. Waste materials are recycled by heating and raising the temperature.
【０００３】そしてアスファルト分の付着している廃材
を廃材ドライヤによって加熱すると、加熱条件により悪
臭の排ガスが発生し、プラント付近に悪臭を漂わせて公
害上無視できない問題を引き起こすこともある。When a waste material having an asphalt component attached thereto is heated by a waste material drier, an offensive odor gas is generated depending on heating conditions, which may cause a bad smell near the plant to cause a problem that cannot be ignored due to pollution.
【０００４】そこで排ガス中の臭気成分を除去するため
に、廃材ドライヤの排気煙道を脱臭炉に連結し、廃材ド
ライヤより導出する臭気成分を含む排ガスを脱臭炉に送
り込み、脱臭炉によって臭気成分を燃焼させて脱臭した
後に煙突より大気に放散するように構成したものが考え
られる。Therefore, in order to remove the odorous components in the exhaust gas, the exhaust flue of the waste material dryer is connected to a deodorizing furnace, the exhaust gas containing the odorous components derived from the waste material dryer is sent to the deodorizing furnace, and the odorous components are removed by the deodorizing furnace. It is conceivable that it is configured so that it is burned to deodorize and then diffused into the atmosphere from the chimney.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、脱臭炉
より導出される排ガスは８００℃前後と高温であり、こ
れを単に冷却して大気に放散してしまうのは熱エネルギ
ーを無駄にしてしまうし、また熱交換器等でその熱を回
収するとなると熱効率はかなり改善されるものの装置が
高価なものとなり、経済的負担の大きいものとなる。However, the exhaust gas discharged from the deodorizing furnace has a high temperature of around 800 ° C., and simply cooling it and dissipating it into the atmosphere wastes thermal energy. Further, if the heat is recovered by a heat exchanger or the like, the thermal efficiency is considerably improved, but the device becomes expensive and the economic burden becomes large.
【０００６】本発明は上記の点に鑑み、装置に対する経
済的負担が大きくならないようにし、かつ、脱臭炉より
の排ガスの熱量を効率良く回収するようにしたアスファ
ルト舗装廃材再生装置を提供することを目的とする。In view of the above points, the present invention provides an asphalt pavement waste material reclaiming apparatus which prevents the economical burden on the apparatus from increasing and efficiently recovers the heat quantity of the exhaust gas from the deodorizing furnace. To aim.
【０００７】[0007]
【課題を解決するための手段】本発明は上記の目的を達
成するために、アスファルト舗装廃材を加熱再生する廃
材ドライヤの一端部のホットホッパ側に燃焼室を備えた
バーナを配設する一方、他端部のコールドホッパ側に排
気煙道を配設し、該排気煙道の先端部を排ガス中の臭気
成分を燃焼させる脱臭炉に連結すると共に、該脱臭炉の
排ガス導出煙道の先端部を新規骨材を加熱する骨材ドラ
イヤのバーナ側に連結したことを特徴としている。In order to achieve the above object, the present invention provides a burner provided with a combustion chamber on the hot hopper side of one end of a waste material dryer for heating and regenerating asphalt pavement waste material, while An exhaust flue is arranged on the cold hopper side of the other end, and the tip of the exhaust flue is connected to a deodorizing furnace that burns odorous components in the exhaust gas, and the tip of the exhaust gas flue of the deodorizing furnace is connected. Is connected to the burner side of the aggregate dryer that heats the new aggregate.
【０００８】[0008]
【作用】本発明のアスファルト舗装廃材再生装置によれ
ば、アスファルト舗装廃材を加熱再生する時に廃材ドラ
イヤより導出する臭気成分を含んだ排ガスを脱臭炉に導
入し、脱臭炉によって排ガス中の臭気成分を８００℃前
後で燃焼させて脱臭する。そして脱臭した後の高温の排
ガスを新規骨材を加熱する骨材ドライヤにバーナ側から
導入するようにし、排ガスの持つ熱量を新規骨材の加熱
に利用することで熱回収を図る。また脱臭炉よりの排ガ
スを骨材ドライヤに導入することで熱回収のための高価
な熱交換器等も不要となり、経済的負担を軽減すること
ができる。According to the asphalt pavement waste material recycling apparatus of the present invention, the exhaust gas containing the odorous component derived from the waste material dryer when the asphalt pavement waste material is heated and recycled is introduced into the deodorizing furnace, and the odorous component in the exhaust gas is removed by the deodorizing furnace. It is burned at around 800 ° C to deodorize. Then, the high-temperature exhaust gas after deodorization is introduced from the burner side to the aggregate dryer that heats the new aggregate, and the heat amount of the exhaust gas is used for heating the new aggregate to recover heat. Also, by introducing the exhaust gas from the deodorizing furnace into the aggregate dryer, an expensive heat exchanger for heat recovery is not required, and the economic burden can be reduced.
【０００９】[0009]
【実施例】以下本発明の実施例を図面に基づいて説明す
る。Embodiments of the present invention will be described below with reference to the drawings.
【００１０】１は廃材を加熱再生する廃材ドライヤであ
って、ロータリキルン方式のもので内周部に多数の掻き
上げ羽根を周設した円筒状のドラム２を回転自在に傾斜
支持し、駆動装置（図示せず）により所定の速度で回転
させている。Reference numeral 1 denotes a waste material dryer for heating and recycling waste material, which is of a rotary kiln type and rotatably tilts and supports a cylindrical drum 2 having a large number of scraping blades around its inner peripheral portion, and a driving device. It is rotated at a predetermined speed by (not shown).
【００１１】３はドラム２の一端部に配設したホットホ
ッパであって、該ホットホッパ３側にはバーナ４が配設
してあり、バーナ４の前方には火炎を形成する燃焼室５
を備えている。A hot hopper 3 is provided at one end of the drum 2. A burner 4 is provided on the hot hopper 3 side, and a combustion chamber 5 for forming a flame is provided in front of the burner 4.
It has.
【００１２】６はドラム２の他端部に配設したコールド
ホッパであって、該コールドホッパ６にはドラム２内の
排ガスを導出させる排気煙道７を連結してあり、該排気
煙道７にはドラム２より導出する排ガスを吸引排気する
排風機８と、排ガス中の飛散粉塵を捕集するサイクロン
集塵機９とを配設している。Reference numeral 6 denotes a cold hopper arranged at the other end of the drum 2, and an exhaust flue 7 for leading out exhaust gas in the drum 2 is connected to the cold hopper 6 and the exhaust flue 7 An exhauster 8 for sucking and exhausting the exhaust gas discharged from the drum 2 and a cyclone dust collector 9 for collecting the scattered dust in the exhaust gas are disposed in the air conditioner.
【００１３】前記排気煙道７は途中を分岐して循環煙道
１０を連結し、ファン１１により排ガスの一部を燃焼室
５へと導き、燃焼ガス温度の調整を行なっている。The exhaust flue 7 branches in the middle to connect the circulation flue 10, and a fan 11 guides a part of the exhaust gas to the combustion chamber 5 to adjust the combustion gas temperature.
【００１４】排気煙道７は脱臭炉１２へと連結され、該
脱臭炉１２は筒状とした炉本体１３に脱臭用バーナ１４
を配設しており、脱臭炉１２に送り込んだ排ガスを８０
０℃程度の燃焼ガスで１秒以上加熱し、排ガス中の臭気
成分を燃焼して脱臭するようにしている。The exhaust flue 7 is connected to a deodorizing furnace 12, which has a cylindrical furnace body 13 and a deodorizing burner 14.
The exhaust gas sent to the deodorizing furnace 12 is
The combustion gas at about 0 ° C. is heated for 1 second or more to burn the odorous components in the exhaust gas to deodorize.
【００１５】そして脱臭炉１２の炉本体１３には臭気成
分を燃焼させた後の排ガスを導出する排ガス導出煙道１
５を配設しており、該排ガス導出煙道１５の先端部は公
知のアスファルトプラントの骨材ドライヤ１６のホット
ホッパ１７側に連結し、脱臭炉１２から導出した高い熱
量を有する排ガスを骨材ドライヤ１６内を通過させるよ
うにして新規骨材の加熱に利用し、排ガスの持つ熱量の
回収を図るようにしている。In the furnace body 13 of the deodorizing furnace 12, an exhaust gas discharge flue 1 for discharging the exhaust gas after burning the odorous components.
5, the tip of the exhaust gas discharge flue 15 is connected to the hot hopper 17 side of the aggregate dryer 16 of a known asphalt plant, and the exhaust gas having a high calorific value derived from the deodorizing furnace 12 is aggregated. The new aggregate is passed through the dryer 16 and is used for heating the new aggregate to recover the heat quantity of the exhaust gas.
【００１６】そして骨材ドライヤ１６の下流には排風機
１９を配設し、骨材ドライヤ１６内を通過する排ガスを
吸引し、骨材ドライヤ１６のコールドホッパ２０に配設
された排気煙道２１より導出する排ガスを排気煙道２１
の途中に配設したサイクロン集塵機２２やバグフィルタ
ー２３を通過させて粉塵等を除去した後に煙突２４より
大気に放出している。An exhauster 19 is arranged downstream of the aggregate dryer 16 to suck exhaust gas passing through the aggregate dryer 16, and an exhaust flue 21 arranged in a cold hopper 20 of the aggregate dryer 16. Exhaust flue 21
After passing through a cyclone dust collector 22 and a bag filter 23 disposed in the middle of the process to remove dust and the like, the dust is discharged from the chimney 24 to the atmosphere.
【００１７】なお、上記実施例においては、排ガス導出
煙道１５をホットホッパ１７に直接連結しているが、脱
臭炉１２の排ガスの全てを骨材ドライヤ１６側に導入す
るとガス量的に問題があるのであれば、排ガス導出煙道
１５を分岐するなどして適当量を骨材ドライヤ１６に導
入し、その他のガスは小型の熱交換機を介するなどして
大気中に放散しても良い。In the above embodiment, the exhaust gas discharge flue 15 is directly connected to the hot hopper 17, but if all the exhaust gas of the deodorization furnace 12 is introduced into the aggregate dryer 16 side, there is a problem in terms of gas amount. If so, an appropriate amount may be introduced into the aggregate dryer 16 by branching the exhaust gas discharge flue 15, and other gases may be diffused into the atmosphere via a small heat exchanger.
【００１８】[0018]
【発明の効果】以上のように本発明に係るアスファルト
舗装廃材再生装置にあっては、廃材ドライヤ１から排出
される排ガスを脱臭炉１２に導いて悪臭成分を燃焼し、
脱臭炉１２から排出される高温の排ガスを新規骨材加熱
用の骨材ドライヤ１６に導入する構成としたので、装置
コストもかからずに脱臭炉１２より排出される高温排ガ
スの熱量を効率良く回収することができる。As described above, in the asphalt pavement waste material recycling apparatus according to the present invention, the exhaust gas discharged from the waste material dryer 1 is guided to the deodorizing furnace 12 to burn the malodorous components,
Since the high-temperature exhaust gas discharged from the deodorizing furnace 12 is introduced into the aggregate dryer 16 for heating the new aggregate, the heat quantity of the high-temperature exhaust gas discharged from the deodorizing furnace 12 can be efficiently provided without the cost of the apparatus. Can be collected.
【図１】本発明のアスファルト舗装廃材再生装置のフロ
ー図である。FIG. 1 is a flow diagram of an asphalt pavement waste material recycling apparatus of the present invention.
１…廃材ドライヤ ３…ホットホッパ ４…バーナ ６…コールドホッパ ７…排気煙道 １２…脱臭炉 １５…排ガス導出煙道 １６…骨材ドライヤ １７…ホットホッパ 1 ... Waste material dryer 3 ... Hot hopper 4 ... Burner 6 ... Cold hopper 7 ... Exhaust flue 12 ... Deodorizing furnace 15 ... Exhaust gas discharge flue 16 ... Aggregate dryer 17 ... Hot hopper
Claims (1)
ドライヤの一端部のホットホッパ側に燃焼室を備えたバ
ーナを配設する一方、他端部のコールドホッパ側に排気
煙道を配設し、該排気煙道の先端部を排ガス中の臭気成
分を燃焼させる脱臭炉に連結すると共に、該脱臭炉の排
ガス導出煙道の先端部を新規骨材を加熱する骨材ドライ
ヤのバーナ側に連結したことを特徴とするアスファルト
舗装廃材再生装置。1. A burner having a combustion chamber is provided on one side of a hot hopper of a waste material dryer for heating and regenerating asphalt pavement waste, while an exhaust flue is provided on the other side of a cold hopper side. The tip of the exhaust flue was connected to a deodorizing furnace that burns the odorous components in the exhaust gas, and the tip of the exhaust gas discharge flue of the deodorizing furnace was connected to the burner side of an aggregate dryer that heats new aggregate. An asphalt pavement waste material recycling device characterized in that
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23718094A JP3568165B2 (en) | 1994-09-30 | 1994-09-30 | Asphalt pavement waste material recycling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23718094A JP3568165B2 (en) | 1994-09-30 | 1994-09-30 | Asphalt pavement waste material recycling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08100408A true JPH08100408A (en) | 1996-04-16 |
| JP3568165B2 JP3568165B2 (en) | 2004-09-22 |
Family
ID=17011564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23718094A Expired - Fee Related JP3568165B2 (en) | 1994-09-30 | 1994-09-30 | Asphalt pavement waste material recycling device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3568165B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009001996A (en) * | 2007-06-20 | 2009-01-08 | Nikko Co Ltd | Asphalt mixture production equipment |
| JP2009179935A (en) * | 2008-01-29 | 2009-08-13 | Nikko Co Ltd | Asphalt mixture manufacturing device |
-
1994
- 1994-09-30 JP JP23718094A patent/JP3568165B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009001996A (en) * | 2007-06-20 | 2009-01-08 | Nikko Co Ltd | Asphalt mixture production equipment |
| JP2009179935A (en) * | 2008-01-29 | 2009-08-13 | Nikko Co Ltd | Asphalt mixture manufacturing device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3568165B2 (en) | 2004-09-22 |
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