JP2003302018A - Waste supply method and its device - Google Patents
Waste supply method and its deviceInfo
- Publication number
- JP2003302018A JP2003302018A JP2002103534A JP2002103534A JP2003302018A JP 2003302018 A JP2003302018 A JP 2003302018A JP 2002103534 A JP2002103534 A JP 2002103534A JP 2002103534 A JP2002103534 A JP 2002103534A JP 2003302018 A JP2003302018 A JP 2003302018A
- Authority
- JP
- Japan
- Prior art keywords
- waste
- pusher
- grate
- hopper
- incinerator
- 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
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は廃棄物の供給方法およ
び供給装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and a device for supplying waste.
【０００２】[0002]
【従来の技術】従来、図３に示すように、ごみ焼却炉の
炉本体２１にはごみ投入ホッパー２２が設置され、この
ごみ投入ホッパー２２の底部には、ごみ供給装置２３が
設けられている。このごみ供給装置２３は、ごみ２４を
ごみ投入ホッパー２２から、炉本体２１の火格子２５上
に押し出すプッシャー２６と、このプッシャー２６を前
後進させるシリンダ装置２７とから構成されており、プ
ッシャー２６の前面は、ごみ２４を押し出す押出し面２
８が形成されている。2. Description of the Related Art Conventionally, as shown in FIG. 3, a refuse injecting hopper 22 is provided in a furnace body 21 of a refuse incinerator, and a refuse supplying device 23 is provided at the bottom of the refuse injecting hopper 22. . The dust supply device 23 includes a pusher 26 that pushes the dust 24 from the dust input hopper 22 onto the grate 25 of the furnace body 21, and a cylinder device 27 that moves the pusher 26 forward and backward. The front surface is an extrusion surface 2 that pushes out dust 24.
8 is formed.
【０００３】ごみ投入ホッパー２２に投入されたごみ２
４は、落下してごみ投入ホッパー２２の底部に堆積す
る。そして、シリンダ装置２７のピストンロッド２９が
前進することにより、プッシャー２６は炉本体２１側へ
前進し、プッシャー２６はその押出し面２８でごみ２４
を、ごみ投入ホッパー２２から火格子２５上に押し出
す。ごみ２４を押出した後、ピストンロッド２９は後退
し、プッシャー２６は後退する。このようなプッシャー
２６の前進後退が繰り返され、ごみ２４はごみ投入ホッ
パー２２内から、火格子２５上に間欠的に供給される。Garbage 2 thrown into the garbage throwing hopper 22
4 drops and accumulates on the bottom of the dust input hopper 22. Then, as the piston rod 29 of the cylinder device 27 moves forward, the pusher 26 moves forward to the furnace body 21 side, and the pusher 26 pushes the dust 24 at its pushing surface 28.
Are extruded from the dust input hopper 22 onto the grate 25. After pushing out the dust 24, the piston rod 29 retracts and the pusher 26 retracts. Such forward and backward movements of the pusher 26 are repeated, and the dust 24 is intermittently supplied onto the grate 25 from the dust input hopper 22.
【０００４】[0004]
【発明が解決しようとする課題】上述した従来のごみ焼
却炉へのごみの供給装置には、次のような問題点があ
る。ごみの火格子上への切り出しは、プッシャーを前進
後退させることにより行なわれるので、ごみの供給が間
欠的となり、ごみの燃焼に適した一定量を、連続的に供
給することができない。DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention The above-described conventional dust supplying apparatus for a refuse incinerator has the following problems. Since the cutting out of the refuse on the grate is performed by moving the pusher forward and backward, the supply of the refuse becomes intermittent, and a fixed amount suitable for burning the refuse cannot be continuously supplied.
【０００５】また、ごみは切出し口の高さとプッシャ−
のストロ−クにより規定されるある大きさの塊となっ
て、プッシャ−先端から火格子上に落下するので、落下
当初は火格子の下方から供給される燃焼用空気の通気性
が悪く、燃焼効率が低い。また、燃焼負荷も間欠的に変
動するので、ごみの燃焼状態が変動し、焼却炉の安定的
な運転に支障が生じる場合がある。特に、比重が重い低
質ごみになると、プッシャ−の前進後退の動作が遅くな
り、ごみの供給間隔がより長くなるため、安定燃焼の妨
げとなる。[0005] In addition, the dust is pushed out by the height of the cutout and the pusher.
Since it becomes a lump of a certain size specified by the stroke of the pusher and falls on the grate from the tip of the pusher, the air permeability for the combustion air supplied from below the grate is poor at the beginning of the fall, and Efficiency is low. Further, since the combustion load also fluctuates intermittently, the combustion state of dust fluctuates, which may hinder stable operation of the incinerator. In particular, when low-quality dust with a large specific gravity is used, the forward and backward movements of the pusher are delayed, and the dust feed interval becomes longer, which hinders stable combustion.
【０００６】このような問題を解消するために、スクリ
ュ−コンベアを使用することも考えられるが、大型スト
−カ炉では、炉幅の広い炉内にごみを供給しなければな
らないので、スクリュ−コンベアでは、炉内の火格子上
にごみを分散して連続的に供給することができない。ま
た、大塊のごみを前処理を行なわないで供給することが
できない。In order to solve such a problem, it is possible to use a screw conveyor, but in a large-scale stoker furnace, since the dust must be supplied into the furnace with a wide furnace width, the screw conveyor is used. The conveyor cannot disperse the dust on the grate in the furnace and continuously supply it. Also, large lumps of waste cannot be fed without pretreatment.
【０００７】本発明は従来技術の上述したような問題点
を解消するためになされたものであり、ごみ等の廃棄物
を、燃焼状態が大きく変動しないように、適量づつ連続
的に廃棄物焼却炉に供給でき、大型の廃棄物焼却炉にも
適用可能な廃棄物の供給方法および供給装置を提供する
ことを目的としている。The present invention has been made in order to solve the above-mentioned problems of the prior art, and incinerates waste such as dust continuously in appropriate amounts so that the combustion state does not change significantly. An object of the present invention is to provide a waste supply method and a supply device that can be supplied to a furnace and can be applied to a large-scale waste incinerator.
【０００８】[0008]
【課題を解決するための手段】この発明に係る廃棄物の
供給方法は、廃棄物ホッパ−に投入された廃棄物を、前
記廃棄物ホッパ−の底部に配置されたプッシャ−によ
り、廃棄物焼却炉の火格子上に押し出すようにした廃棄
物の供給方法において、廃棄物ホッパ−からプッシャ−
により押し出された廃棄物が、直接前記火格子上に落下
しないように、プッシャ−の押出面最前進位置を調整す
るとともに、プッシャ−の押出面最前進位置上方で、プ
ッシャ−により押し出された廃棄物を、火格子上に切り
出すようにしたものである。In the method of supplying waste according to the present invention, the waste put into the waste hopper is incinerated by a pusher arranged at the bottom of the waste hopper. In the method of supplying waste material that is extruded onto the grate of the furnace, the waste hopper is pushed to the pusher.
The waste pushed out by means of the pusher is adjusted so that the most advanced position of the pushing surface of the pusher is not dropped directly onto the grate, and the waste pushed by the pusher is located above the most forward position of the pushing surface of the pusher. An object is cut out on a grate.
【０００９】また、この発明に係る廃棄物の供給装置
は、廃棄物ホッパ−に投入された廃棄物を、前記廃棄物
ホッパ−の底部に配置されたプッシャ−により、廃棄物
焼却炉の火格子上に押し出すようにした廃棄物の供給装
置において、前記プッシャ−の押出面最前進位置上方
に、プッシャ−により押し出された廃棄物を火格子上に
切り出す切出し装置を設けたものである。Further, in the waste supply device according to the present invention, the grate of the waste incinerator is provided by using the pusher disposed at the bottom of the waste hopper to dispose of the waste put in the waste hopper. In the waste feeding device that is pushed out upward, a cutting device that cuts out the waste pushed out by the pusher onto the grate is provided above the push-up surface most advanced position of the pusher.
【００１０】また、前記切出し装置の切りだし周期が前
記プッシャ−の押出し周期よりも短いものである。Further, the cutting cycle of the cutting device is shorter than the pushing cycle of the pusher.
【００１１】この発明に係る廃棄物の供給方法および供
給装置においては、プッシャ−により廃棄物ホッパ−内
の廃棄物を、大きな塊として直接火格子上に切り出すの
ではなくて、大きな塊を火格子の手前まで押し出し、こ
の塊をプッシャ−の押出面最前進位置上方に設けた切り
出し装置で、プッシャ−の押出し周期よりも短い周期
で、少量づつ火格子上に切り出していくので、燃焼条件
を大きく変動させることはなく、焼却炉の操業を安定し
て行なうことができる。In the method and apparatus for supplying waste according to the present invention, the waste in the waste hopper is not directly cut out as a large mass on the grate by the pusher, but a large mass is grated. In the cutting device provided above the pusher's most advanced position on the pushing surface of the pusher, the lumps are cut out little by little on a grate at a cycle shorter than the pusher's pushing cycle. The operation of the incinerator can be performed stably without changing the value.
【００１２】また、切出し装置は、炉幅方向全域をカバ
−できるように設置することができるので、大型の焼却
炉にも適用することができる。Since the cutting device can be installed so as to cover the entire area in the width direction of the furnace, it can be applied to a large incinerator.
【００１３】[0013]
【発明の実施の形態】本発明の実施の形態を図面を参照
して説明する。図１は本発明の廃棄物の供給装置を備え
た廃棄物焼却炉の断面図である。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a sectional view of a waste incinerator equipped with the waste supply device of the present invention.
【００１４】この焼却炉１は、廃棄物ホッパ−２の底部
に設けられ、廃棄物ホッパ−２内の廃棄物３を焼却炉１
の火格子４に向かって押し出すプッシャ−５と、プッシ
ャ−５の押出面５ａ最前進位置上方に設けられ、プッシ
ャ−５により押し出された廃棄物３の塊を、火格子４上
に少量づつ切り出す切出しドラム６とからなる廃棄物の
供給装置を備えている。This incinerator 1 is provided at the bottom of the waste hopper-2, and incinerates the waste 3 in the waste hopper-2.
Pusher 5 pushed toward the grate 4 of the pusher 5 and a mass of the waste 3 which is provided above the push-out surface 5a most advanced position of the pusher 5 and pushed out by the pusher 5 is cut into the grate 4 little by little. A waste supply device including a cutting drum 6 is provided.
【００１５】この廃棄物の供給装置を詳述すると、プッ
シャ−５の押出し面５ａの最前進位置は、火格子４から
一定距離Ｌ離れた位置であり、プッシャ−５で押し出さ
れた廃棄物ホッパ−２内の廃棄物３が塊となって、直接
火格子４上に押出されることはないように、プッシャ−
５の押出し面５ａの最前進位置が調整されている。Explaining this waste supply device in detail, the most advanced position of the pushing surface 5a of the pusher 5 is a position separated from the grate 4 by a certain distance L, and the waste hopper pushed out by the pusher 5 is pushed. -2, the pusher-should not allow the waste 3 in the lump to be extruded directly onto the grate 4.
The most advanced position of the pushing surface 5a of No. 5 is adjusted.
【００１６】切出しドラム６は、回転ドラム７に複数の
耐磨耗鋼からなる切出し刃８を有する構造となってお
り、回転ドラム７の炉幅方向の幅寸法は、焼却炉１の炉
幅に応じて決定すればよい。The cutting drum 6 has a structure in which the rotating drum 7 has a plurality of cutting blades 8 made of wear-resistant steel, and the width dimension of the rotating drum 7 in the furnace width direction is the furnace width of the incinerator 1. It may be decided accordingly.
【００１７】本発明の廃棄物の供給方法においては、プ
ッシャ−５で火格子４の手前まで押し出された廃棄物３
の塊は、切出しドラム６により一定の割合で少量づつ切
り出される。In the method for supplying waste according to the present invention, the waste 3 pushed out to the front of the grate 4 by the pusher 5
The lump of is cut out by the cutting drum 6 in small amounts at a constant rate.
【００１８】そして、押し出された廃棄物３の塊がほぼ
全量火格子４上に切り出されたとき、次の廃棄物３の塊
がプッシャ−５により押し出され、同じように切出しド
ラム６により一定の割合で少量づつ切り出されるという
ように、廃棄物の供給は燃焼に適した一定量づつ連続的
に行なわれる。When almost all the lumps of the pushed waste 3 are cut out on the grate 4, the next lumps of the waste 3 are pushed out by the pusher 5, and similarly the cutting drum 6 makes a certain amount. The waste is continuously supplied in a fixed amount suitable for combustion, such as being cut out in small amounts in proportion.
【００１９】図２は他の廃棄物の供給装置を備えた廃棄
物焼却炉の説明図であり、（ａ）は廃棄物焼却炉の側面
図、（ｂ）は（ａ）のＡ−Ａ矢視図である。この焼却炉
１１は、廃棄物ホッパ−１２の底部に設けられ、廃棄物
ホッパ−１２内の廃棄物１３を焼却炉１１の火格子１４
に向かって押し出すプッシャ−１５と、プッシャ−１５
の押出面１５ａ最前進位置上方に設けられ、プッシャ−
１５により押し出された廃棄物１３の塊を、火格子１４
上に少量づつ切り出す切出しプッシャ−１６とからなる
廃棄物の供給装置を備えている。2A and 2B are explanatory views of a waste incinerator equipped with another waste supply device. FIG. 2A is a side view of the waste incinerator, and FIG. 2B is an AA arrow of FIG. It is a perspective view. This incinerator 11 is provided at the bottom of the waste hopper-12, and the waste 13 in the waste hopper-12 is transferred to the grate 14 of the incinerator 11.
Pusher 15 that pushes toward, and pusher 15
Is provided above the most advanced position of the pushing surface 15a of the
The waste 13 lumps extruded by 15 are put into a grate 14
A waste supply device including a cutting pusher 16 that cuts out a little at a time is provided.
【００２０】そして、プッシャ−１５の押出し面１５ａ
の最前進位置が、火格子１４から一定距離離れた位置Ｌ
となるように調整されている。The pushing surface 15a of the pusher 15
Is the most advanced position of L is a position L away from the grate 14
Has been adjusted to be
【００２１】また、切出しプッシャ−１６の設置台数
は、焼却炉１１の炉幅に応じて決定する。The number of cutting pushers 16 installed is determined according to the furnace width of the incinerator 11.
【００２２】[0022]
【発明の効果】本発明の廃棄物の供給方法においては、
従来の廃棄物の供給方法のように、廃棄物の塊が間欠的
に火格子上に供給されるのではなく、燃焼に適した一定
量づつ連続的に供給されるので、火格子上のごみ層の厚
さが均一となり、また火格子の下方から供給される燃焼
用空気の通気性が向上されるため、一時的な燃焼の活発
化や低調化が生じにくくなり、燃焼の安定性が向上す
る。そのため、焼却炉からの未燃ガス等の有害物の排出
が防止できる。また、廃熱ボイラでの発生蒸気量も安定
する。In the method of supplying waste according to the present invention,
Unlike the conventional waste supply method, the lumps of waste are not supplied intermittently on the grate, but are continuously supplied in fixed amounts suitable for combustion, so that the waste on the grate The layer thickness is uniform, and the ventilation of the combustion air supplied from below the grate is improved, so it becomes difficult to temporarily activate or lower the combustion, and the combustion stability is improved. To do. Therefore, it is possible to prevent the discharge of harmful substances such as unburned gas from the incinerator. In addition, the amount of steam generated in the waste heat boiler becomes stable.
【００２３】また、これにより、発生する排ガス量の変
動幅が低減するので、排ガス系統の設備容量の余裕を小
さくすることができ、設備の建設コストおよび運転コス
トの低減化を図ることができるとともに、蒸発量の安定
化により、ボイラ部での高効率熱回収を行うことができ
る。Further, as a result, the fluctuation range of the generated exhaust gas is reduced, so that the margin of the equipment capacity of the exhaust gas system can be reduced, and the construction cost and operating cost of the equipment can be reduced. By stabilizing the evaporation amount, highly efficient heat recovery in the boiler section can be performed.
【図１】本発明の廃棄物の供給装置を備えた廃棄物焼却
炉の側面図である。FIG. 1 is a side view of a waste incinerator equipped with the waste supply device of the present invention.
【図２】本発明の他の廃棄物の供給装置を備えた廃棄物
焼却炉の説明図であり、（ａ）は廃棄物焼却炉の側面
図、（ｂ）は（ａ）のＡ−Ａ矢視図である。FIG. 2 is an explanatory view of a waste incinerator having another waste supply device of the present invention, (a) is a side view of the waste incinerator, and (b) is A-A of (a). FIG.
【図３】従来のごみ焼却炉の側面図である。FIG. 3 is a side view of a conventional refuse incinerator.
１ 焼却炉 ２ 廃棄物ホッパ− ３ 廃棄物 ４ 火格子 ５ プッシャ− ６ 切出しドラム ７ 回転ドラム ８ 切出し刃 １１ 焼却炉 １２ 廃棄物ホッパ− １３ 廃棄物 １４ 火格子 １５ プッシャ− １６ 切出しプッシャ− 1 incinerator 2 Waste hopper 3 waste 4 grate 5 pushers 6 cutting drum 7 rotating drum 8 cutting blade 11 incinerator 12 Waste hopper 13 Waste 14 grate 15 pusher 16 Cutting pusher
Claims (3)
前記廃棄物ホッパ−の底部に配置されたプッシャ−によ
り、廃棄物焼却炉の火格子上に押し出すようにした廃棄
物の供給方法において、廃棄物ホッパ−からプッシャ−
により押し出された廃棄物が、直接前記火格子上に落下
しないように、プッシャ−の押出面最前進位置を調整す
るとともに、プッシャ−の押出面最前進位置上方で、プ
ッシャ−により押し出された廃棄物を、火格子上に切り
出すようにしたことを特徴とする廃棄物の供給方法。1. The waste put in a waste hopper,
In the method of supplying waste, wherein the pusher arranged at the bottom of the waste hopper pushes the waste hopper onto the grate of the waste incinerator, the pusher is pushed out of the waste hopper.
The waste pushed out by means of the pusher is adjusted so that the most advanced position of the pushing surface of the pusher is not dropped directly onto the grate, and the waste pushed by the pusher is located above the most forward position of the pushing surface of the pusher. A method of supplying waste, characterized in that the thing is cut out on a grate.
前記廃棄物ホッパ−の底部に配置されたプッシャ−によ
り、廃棄物焼却炉の火格子上に押し出すようにした廃棄
物の供給装置において、前記プッシャ−の押出面最前進
位置上方に、プッシャ−により押し出された廃棄物を火
格子上に切り出す切出し装置を設けたことを特徴とする
廃棄物の供給装置。2. The waste loaded into the waste hopper is
In a waste supply device adapted to be pushed onto the grate of a waste incinerator by a pusher arranged at the bottom of the waste hopper, above the push-out most advanced position of the pusher, by a pusher. A waste supply device, which is provided with a cutting device that cuts out the discharged waste on a grate.
ッシャ−の押出し周期よりも短いことを特徴とする請求
項２に記載の廃棄物の供給装置。3. The waste supply apparatus according to claim 2, wherein the cutting cycle of the cutting apparatus is shorter than the pushing cycle of the pusher.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002103534A JP2003302018A (en) | 2002-04-05 | 2002-04-05 | Waste supply method and its device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002103534A JP2003302018A (en) | 2002-04-05 | 2002-04-05 | Waste supply method and its device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003302018A true JP2003302018A (en) | 2003-10-24 |
Family
ID=29389303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002103534A Pending JP2003302018A (en) | 2002-04-05 | 2002-04-05 | Waste supply method and its device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003302018A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100739231B1 (en) * | 2006-09-13 | 2007-07-13 | 삼흥산업개발 (주) | Construction waste device for carrying out wet treatment |
| US9702553B2 (en) | 2011-03-28 | 2017-07-11 | Mitsubishi Heavy Industries Environmental & Chemical Engineering Co., Ltd. | Waste material supply device and waste material processing device |
| JP2019199991A (en) * | 2018-05-16 | 2019-11-21 | Ｊｆｅエンジニアリング株式会社 | Waste incinerator and waste incineration method |
-
2002
- 2002-04-05 JP JP2002103534A patent/JP2003302018A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100739231B1 (en) * | 2006-09-13 | 2007-07-13 | 삼흥산업개발 (주) | Construction waste device for carrying out wet treatment |
| US9702553B2 (en) | 2011-03-28 | 2017-07-11 | Mitsubishi Heavy Industries Environmental & Chemical Engineering Co., Ltd. | Waste material supply device and waste material processing device |
| JP2019199991A (en) * | 2018-05-16 | 2019-11-21 | Ｊｆｅエンジニアリング株式会社 | Waste incinerator and waste incineration method |
| JP7020289B2 (en) | 2018-05-16 | 2022-02-16 | Ｊｆｅエンジニアリング株式会社 | Waste incinerator and waste incinerator method |
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