JPH07260117A - Incinerator - Google Patents

Incinerator

Info

Publication number
JPH07260117A
JPH07260117A JP5692694A JP5692694A JPH07260117A JP H07260117 A JPH07260117 A JP H07260117A JP 5692694 A JP5692694 A JP 5692694A JP 5692694 A JP5692694 A JP 5692694A JP H07260117 A JPH07260117 A JP H07260117A
Authority
JP
Japan
Prior art keywords
combustion
hopper
waste
zone
air
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
JP5692694A
Other languages
Japanese (ja)
Inventor
Tsukasa Yoneda
主 米田
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 JP5692694A priority Critical patent/JPH07260117A/en
Publication of JPH07260117A publication Critical patent/JPH07260117A/en
Pending legal-status Critical Current

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  • Incineration Of Waste (AREA)

Abstract

PURPOSE:To provide an incinerator equipped with a mechanism capable of removing moisture efficiently while promoting the combustion of unburnt gas generated upon drying waste. CONSTITUTION:An incinerator is constituted of a combustion chamber 1, equipped with an incinerating and treating belt 5 for incinerating waste while transporting it, and a combustion air supplying mechanism 8, supplying combustion air from the lower part of the incinerating and treating belt 5, and a hopper 3, equipped with a waste charging mechanism 2, charging the waste on the incinerating and treating belt 5 of the combustion chamber. An air supplying mechanism 7, supplying drying air to the waste charged through the hopper 3, is provided and a lid body 6 is provided on the hopper 3 so that the drying air is supplied into the combustion chamber 1.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、ゴミを搬送しながら焼
却する焼却処理帯と、前記焼却処理帯の下方から燃焼用
空気を供給する燃焼用空気供給機構とを備えた燃焼室
と、前記燃焼室の焼却処理帯にゴミを投入するゴミ投入
機構を備えたホッパーとからなるゴミ焼却炉に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combustion chamber provided with an incineration zone for incinerating waste while conveying it, and a combustion air supply mechanism for supplying combustion air from below the incineration zone, The present invention relates to a waste incinerator including a hopper equipped with a waste input mechanism for inputting waste to an incineration zone of a combustion chamber.

【0002】[0002]

【従来の技術】ゴミ焼却炉では、生ゴミ等の含水率の高
いゴミを焼却する必要があるため、図2に示すように、
ホッパー3から投入されたゴミを搬送しながら乾燥させ
る乾燥帯Aと、乾燥帯Aで乾燥されたゴミを搬送しなが
ら燃焼させる燃焼帯B等でなるストーカ式の搬送機構を
備えた焼却処理帯5を構成するとともに、乾燥帯A及び
燃焼帯B等の下方にそれぞれ風箱8aを介して各別に乾
燥用の空気、燃焼用の空気を供給する燃焼用空気供給機
構8を設けて構成してあり、安定燃焼のために前記乾燥
帯Aである程度ゴミを乾燥処理した後に燃焼させるよう
に構成していた。
2. Description of the Related Art In a refuse incinerator, it is necessary to incinerate garbage having a high water content, such as raw garbage.
An incineration treatment zone 5 having a stoker type conveyance mechanism including a drying zone A for drying the dust introduced from the hopper 3 while transporting it and a burning zone B for burning the dust dried in the drying zone A And a combustion air supply mechanism 8 for separately supplying drying air and combustion air via the wind box 8a below the drying zone A and the combustion zone B. In order to achieve stable combustion, the dust is dried in the drying zone A to some extent and then burned.

【0003】[0003]

【発明が解決しようとする課題】しかし、上述したゴミ
焼却炉では、燃焼室の内部で燃焼帯に隣接して乾燥帯を
設ける構成となっていたために、乾燥帯上でのゴミは、
水分蒸発により乾燥されるばかりでなく、燃焼帯からの
高温の輻射熱等によりゴミの熱分解が促進され、メタン
ガス等の炭化水素系のガスが発生していた。このような
ガス成分は、通常は燃焼帯で発生して燃焼されるのであ
るが、乾燥帯で発生すると、十分に燃焼されずに煙道に
流れ、不完全燃焼のまま排気されるおそれがあった。近
年、排ガス中に含まれる一酸化炭素濃度はダイオキシン
発生量と相関を持つことが判明したことなどから、乾燥
帯でのゴミ乾燥の取扱いが重要な課題となっている。本
発明の目的は、上述した課題を解決する点にあり、ゴミ
の乾燥に際して発生する未燃ガスの燃焼を促進しながら
水分の除去を効率的に行える機構を備えたゴミ焼却炉を
提供する点にある。
However, in the above-mentioned refuse incinerator, since the dry zone is provided adjacent to the combustion zone inside the combustion chamber, the dust on the dry zone is
Not only is it dried by evaporation of water, but also the thermal decomposition of dust is promoted by high-temperature radiant heat from the combustion zone, and hydrocarbon-based gas such as methane gas is generated. Such gas components are normally generated and burned in the combustion zone, but if they occur in the dry zone, they may flow to the flue without being sufficiently burned and may be exhausted as incomplete combustion. It was In recent years, it has been found that the concentration of carbon monoxide contained in exhaust gas has a correlation with the amount of dioxin produced, and therefore handling of waste in a dry zone has become an important issue. An object of the present invention is to solve the above-mentioned problems, and to provide a waste incinerator having a mechanism capable of efficiently removing water while promoting combustion of unburned gas generated when drying waste. It is in.

【0004】[0004]

【課題を解決するための手段】この目的を達成するため
本発明によるゴミ焼却炉の特徴構成は、ホッパーに投入
されたゴミに乾燥用空気を供給する空気供給機構を設け
てある点にある。ここに、前記ホッパーのゴミ投入口に
前記乾燥用空気の漏れを防止する蓋体を設けてあること
が好ましい。
In order to achieve this object, a characteristic configuration of the refuse incinerator according to the present invention is that an air supply mechanism is provided for supplying drying air to the refuse put in the hopper. Here, it is preferable that a lid for preventing the leakage of the drying air is provided at the dust input port of the hopper.

【0005】[0005]

【作用】ホッパー内でのゴミの滞留時間は比較的長い。
そこで、この時間を利用して前記焼却処理帯へ投入され
る前のゴミに空気供給機構により乾燥用の空気を供給す
れば、ゴミをホッパー内で相当に乾燥させることができ
るのである。ここに、前記ホッパーのゴミ投入口に前記
乾燥用空気の漏れを防止する蓋体を設けると、前記乾燥
用空気がゴミの隙間から燃焼室内に流入して、乾燥帯で
発生する未燃焼ガスを拡散燃焼させるに必要な酸素を供
給できることになる。
[Operation] The retention time of dust in the hopper is relatively long.
Therefore, by utilizing this time and supplying the drying air to the dust before being put into the incineration zone by the air supply mechanism, the dust can be considerably dried in the hopper. Here, if a lid for preventing the leakage of the drying air is provided at the dust input port of the hopper, the drying air flows into the combustion chamber through the gap of the dust, and the unburned gas generated in the drying zone is removed. Oxygen required for diffusive combustion can be supplied.

【0006】[0006]

【発明の効果】従って、本発明の焼却炉によれば、ゴミ
が燃焼帯に搬送されるまでに効率よく乾燥されるので、
燃焼効率が高い状態で焼却処理が行え、しかも、乾燥帯
で発生する未燃ガスを、乾燥用空気の有する酸素で十分
に拡散燃焼させることができるので、未燃ガスの発生を
回避していわゆるクリーン燃焼を促進することができる
ゴミ焼却炉を提供することができるようになった。
Therefore, according to the incinerator of the present invention, since the dust is efficiently dried by the time it is conveyed to the combustion zone,
The incineration process can be performed in a state where the combustion efficiency is high, and the unburned gas generated in the dry zone can be sufficiently diffused and burned by the oxygen contained in the drying air. It has become possible to provide a refuse incinerator capable of promoting clean combustion.

【0007】[0007]

【実施例】以下に実施例を説明する。ゴミ焼却炉は、図
1に示すように、ゴミを焼却処理する燃焼室1と、その
燃焼室1への投入ゴミを一時的に溜めるホッパー3と、
ホッパー3の下部に設けられゴミを前記燃焼室1へ少量
づつ投入するゴミ投入機構としてのプッシャ2と、燃焼
室1で焼却された灰を集める灰ピット4等を備えて構成
してある。
EXAMPLES Examples will be described below. As shown in FIG. 1, the waste incinerator includes a combustion chamber 1 for incinerating the waste, a hopper 3 for temporarily storing the waste input into the combustion chamber 1,
The hopper 3 is provided with a pusher 2 as a dust throwing mechanism provided at a lower portion of the hopper 3 for throwing dust into the combustion chamber 1 little by little, and an ash pit 4 for collecting ash burned in the combustion chamber 1.

【0008】ホッパ3には、投入されたゴミに乾燥用空
気を供給する空気供給機構7を設けてある。詳述する
と、空気供給機構7は、誘引送風機とノズル機構とから
なり、単一又は複数のノズル機構をホッパー3の側壁の
中程であって周囲に、その先端が側壁に沿って下方を向
く姿勢で取り付けてある。ノズル機構よりも上方側の側
壁に、ホッパー3へのゴミの投入時期を判断する光透過
式のゴミ検出センサを設けてあり、該センサによりゴミ
の不存在が検出されるとゴミが投入され、以て、ノズル
機構の取り付け位置に必ずゴミが存在するように構成し
てある。又、ホッパー3の上端部には開閉自在の蓋体6
を取り付けてあり、ホッパー3へのゴミの投入時以外は
常に蓋体6は閉じられており、供給された乾燥用空気が
燃焼室1内に流入するように構成してある。
The hopper 3 is provided with an air supply mechanism 7 for supplying drying air to the thrown dust. More specifically, the air supply mechanism 7 is composed of an induction blower and a nozzle mechanism. A single or a plurality of nozzle mechanisms are provided in the middle of the side wall of the hopper 3, around the periphery thereof, and the tip thereof is directed downward along the side wall. It is attached in a posture. On the side wall above the nozzle mechanism, there is provided a light transmission type dust detection sensor for judging the timing of dust input to the hopper 3. When the absence of dust is detected by the sensor, dust is input, Therefore, the dust is always present at the mounting position of the nozzle mechanism. Further, a lid 6 which can be freely opened and closed is provided on the upper end of the hopper 3.
The lid 6 is always closed except when dust is put into the hopper 3, and the supplied drying air flows into the combustion chamber 1.

【0009】燃焼室1は、プッシャ2により投入された
ゴミを攪拌搬送しながら乾燥させる乾燥帯A、燃焼させ
る燃焼帯B、灰化する後燃焼帯Cでなるストーカ式の焼
却処理帯5を設け、その左右側壁の下部に焼却処理帯5
の中央に向かって送風することで火炎を前記側壁から遠
ざけて側壁を冷却する送風手段と、焼却処理帯5の下方
から燃焼用の空気を供給する燃焼用空気供給機構8を設
けてある。詳述すると、前記焼却処理帯5は、固定火格
子に対して可動火格子を油圧シリンダ(図示せず)で斜
め上下方向に摺動することで、燃焼用空気供給機構8か
らの燃焼用空気をゴミに供給しながら攪拌して灰ピット
4方向へ搬送する。
The combustion chamber 1 is provided with a stoker type incineration treatment zone 5 consisting of a drying zone A for drying the dust introduced by the pusher 2 while stirring and transporting it, a combustion zone B for burning, and a post combustion zone C for ashing. , The incineration zone 5 at the bottom of the left and right side walls
There is provided an air blower for cooling the side wall by moving the flame away from the side wall by blowing air toward the center, and a combustion air supply mechanism 8 for supplying combustion air from below the incineration zone 5. More specifically, in the incineration zone 5, the movable grate is slid vertically with respect to the fixed grate by a hydraulic cylinder (not shown), so that the combustion air from the combustion air supply mechanism 8 is moved. While being fed to the trash, it is stirred and conveyed in the direction of the ash pit 4.

【0010】燃焼用空気供給機構8は、焼却処理帯5の
各処理帯A,B,Cの下部に備えた風箱8aと誘引送風
機8bと送風路8cとから構成してある。
The combustion air supply mechanism 8 is composed of a wind box 8a, an induction blower 8b, and a blower passage 8c provided under the respective treatment zones A, B, C of the incineration treatment zone 5.

【0011】燃焼帯Bでの約800℃から1000℃に
至る高温燃焼にともない輻射される熱により、乾燥帯A
上のゴミが熱分解されて炭化水素等の可燃性ガスが生じ
るが、ホッパー3から供給される乾燥用の空気に含まれ
る酸素により拡散燃焼が促進される結果、乾燥帯Aで発
生する未燃ガスがそのまま煙道まで流れる量はごく僅か
となる。
Due to the heat radiated by the high temperature combustion of about 800 ° C. to 1000 ° C. in the combustion zone B, the dry zone A
Although the above dust is thermally decomposed to generate combustible gases such as hydrocarbons, oxygen contained in the drying air supplied from the hopper 3 promotes diffusion combustion, resulting in unburned gas generated in the dry zone A. The amount of gas flowing to the flue is very small.

【0012】燃焼帯Bの上方空間の煙道で残存する一酸
化炭素等の未燃ガスは二次燃焼用の送風機構(図示せ
ず)から供給される空気を用いて800℃近傍で完全燃
焼させる。煙道下流側に廃熱ボイラ12を設けてあり、
燃焼室1で発生した燃焼熱エネルギーを蒸気の形で取り
出して発電機13に供する。さらに、排ガスは電気集塵
機等からなる排ガス処理設備14によりばいじんや有害
ガスが除去されて煙突15から排気される。
The unburned gas such as carbon monoxide remaining in the flue above the combustion zone B is completely burned at around 800 ° C. by using the air supplied from the blower mechanism (not shown) for secondary combustion. Let A waste heat boiler 12 is provided on the downstream side of the flue,
The combustion heat energy generated in the combustion chamber 1 is taken out in the form of steam and supplied to the generator 13. Further, the exhaust gas is exhausted from the chimney 15 by removing dust and harmful gas by the exhaust gas treatment facility 14 including an electric dust collector.

【0013】以下に別実施例を説明する。先の実施例で
は、空気供給機構7により供給される乾燥用空気として
常温の空気を用いた場合を説明したが、これに限定する
ものではなく、焼却炉の排ガスで空気を加熱する加熱器
を設けて、高温の空気を供給するように構成すれば、ゴ
ミの乾燥効率がさらに高まる。さらに、酸素富化した状
態で供給することで効果が増すことはいうまでもない。
Another embodiment will be described below. In the previous embodiment, the case where the air at room temperature was used as the drying air supplied by the air supply mechanism 7 was described, but the present invention is not limited to this, and a heater for heating the air with the exhaust gas of the incinerator is used. If provided and configured to supply high-temperature air, the efficiency of drying dust will be further increased. Further, it goes without saying that the effect is enhanced by supplying the oxygen-enriched state.

【0014】尚、特許請求の範囲の項に図面との対照を
便利にする為に符号を記すが、該記入により本発明は添
付図面の構成に限定するものではない。
It should be noted that reference numerals are added to the claims for convenience of comparison with the drawings, but the present invention is not limited to the structures of the accompanying drawings by the entry.

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

【図1】焼却炉の概略構成図FIG. 1 Schematic diagram of incinerator

【図2】従来技術を示す焼却炉の概略構成図FIG. 2 is a schematic configuration diagram of an incinerator showing a conventional technique.

【符号の説明】[Explanation of symbols]

1 燃焼室 2 ゴミ投入機構 3 ホッパー 5 焼却処理帯 6 蓋体 7 空気供給機構 8 燃焼用空気供給機構 1 Combustion Chamber 2 Dust Injecting Mechanism 3 Hopper 5 Incineration Zone 6 Lid 7 Air Supply Mechanism 8 Combustion Air Supply Mechanism

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 ゴミを搬送しながら焼却する焼却処理帯
(5)と、前記焼却処理帯(5)の下方から燃焼用空気
を供給する燃焼用空気供給機構(8)とを備えた燃焼室
(1)と、前記燃焼室(1)の焼却処理帯(5)にゴミ
を投入するゴミ投入機構(2)を備えたホッパー(3)
とからなるゴミ焼却炉であって、 前記ホッパー(3)に投入されたゴミに乾燥用空気を供
給する空気供給機構(7)を設けてあるゴミ焼却炉。
1. A combustion chamber provided with an incineration treatment zone (5) for incinerating waste while conveying it, and a combustion air supply mechanism (8) for supplying combustion air from below the incineration treatment zone (5). A hopper (3) provided with (1) and a dust input mechanism (2) for inputting dust into the incineration zone (5) of the combustion chamber (1).
A waste incinerator comprising: an air supply mechanism (7) for supplying drying air to the waste put in the hopper (3).
【請求項2】 前記ホッパー(3)のゴミ投入口に前記
乾燥用空気の漏れを防止する蓋体(6)を設けてある請
求項1記載のゴミ焼却炉。
2. The waste incinerator according to claim 1, wherein a lid (6) for preventing the leakage of the drying air is provided at a dust inlet of the hopper (3).
JP5692694A 1994-03-28 1994-03-28 Incinerator Pending JPH07260117A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5692694A JPH07260117A (en) 1994-03-28 1994-03-28 Incinerator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5692694A JPH07260117A (en) 1994-03-28 1994-03-28 Incinerator

Publications (1)

Publication Number Publication Date
JPH07260117A true JPH07260117A (en) 1995-10-13

Family

ID=13041113

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5692694A Pending JPH07260117A (en) 1994-03-28 1994-03-28 Incinerator

Country Status (1)

Country Link
JP (1) JPH07260117A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009041897A (en) * 2007-07-19 2009-02-26 Mhi Environment Engineering Co Ltd Roasting facility juxtaposed to incinerator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009041897A (en) * 2007-07-19 2009-02-26 Mhi Environment Engineering Co Ltd Roasting facility juxtaposed to incinerator

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