JPH11141849A - Incinerator - Google Patents

Incinerator

Info

Publication number
JPH11141849A
JPH11141849A JP9311959A JP31195997A JPH11141849A JP H11141849 A JPH11141849 A JP H11141849A JP 9311959 A JP9311959 A JP 9311959A JP 31195997 A JP31195997 A JP 31195997A JP H11141849 A JPH11141849 A JP H11141849A
Authority
JP
Japan
Prior art keywords
incinerator
incineration
incinerated ash
incineration ash
discharge port
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
JP9311959A
Other languages
Japanese (ja)
Inventor
Masato Aida
真人 合田
Akira Nakao
彰 中尾
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.)
Sumitomo Heavy Industries Ltd
Original Assignee
Sumitomo Heavy Industries Ltd
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 Sumitomo Heavy Industries Ltd filed Critical Sumitomo Heavy Industries Ltd
Priority to JP9311959A priority Critical patent/JPH11141849A/en
Publication of JPH11141849A publication Critical patent/JPH11141849A/en
Pending legal-status Critical Current

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  • Gasification And Melting Of Waste (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

PROBLEM TO BE SOLVED: To efficiently recover hydrogen gas produced in a recovery part, by providing the upper cover of incinerated ash recovery part with a gas exhaust port, in an object which recovers incinerated ash after damping it, being equipped with a tank installed under an incineration chamber and a carrying-out mechanism for carrying out the deposit within the tank to outside. SOLUTION: An incinerated ash recovery part arranged under the incineration chamber of an incinerator is constituted so that it can carry out the deposit within a tank 10 to outside by a carrying-out mechanism 20, being equipped with a tank 10. Moreover, it is provided with a partition plate 70 for keeping the pressure within the incineration chamber at a specified value. The incinerated ash produced accompanying the incineration of the substance to be incinerated within the incineration chamber is collected by a hopper 30, and it is let fall into water of the tank 10. The incinerated ash containing moisture is pushed out to upper left by a carrying-out mechanism 20, and it is let fall onto an under conveyor from the apex and is carried out. A gas discharge port 41 is provided on the upper cover 11 of this incinerated ash recovery part, and the hydrogen gas led to this gas discharge port 41 is supplied to the incineration chamber via pipes 51 and 52 and is utilized for combustion.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、都市ごみ等の被焼
却物を焼却する焼却炉に関し、特に、焼却灰を湿らせた
上で回収する焼却灰回収部を有する焼却炉に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an incinerator for incinerating objects to be incinerated, such as municipal solid waste, and more particularly to an incinerator having an incineration ash recovery section for moistening and collecting incineration ash.

【0002】[0002]

【従来の技術】図2は、従来の焼却灰回収部を有する焼
却炉の要部を示す図である。図2を参照して、この焼却
炉は、図中上方の焼却室(図示せず)下に備えられた水
槽110と、水槽110内での滞積物を外部へ搬出する
搬出機構120と、焼却室内の圧力を所定値に維持する
ための仕切板170とを備える焼却灰回収部を有してい
る。
2. Description of the Related Art FIG. 2 is a diagram showing a main part of an incinerator having a conventional incineration ash recovery section. Referring to FIG. 2, the incinerator includes a water tank 110 provided below an incineration chamber (not shown) in the upper part of the figure, an unloading mechanism 120 that unloads the deposits in the water tank 110 to the outside, And a partition plate 170 for maintaining the pressure in the incinerator at a predetermined value.

【0003】焼却室内にて被焼却物の焼却にともなって
発生する焼却灰は、例えば、焼却室の底部に設けられた
被焼却物搬送用のストーカ(図示せず)の隙間から落下
する。落下する焼却灰は、ホッパ130により集めら
れ、水槽110内に予め貯留されている水中に落下す
る。水槽110内にて水分を含んだ焼却灰は、搬出機構
120によって図中左上方へ押し出される。押し出され
た湿った焼却灰は、下方に設けられたコンベア(図示せ
ず)により焼却灰回収部の外部へ搬出され、以後、所定
の処理がなされる。
[0003] The incineration ash generated as a result of incineration of the incinerated material in the incinerator falls, for example, from a gap in a stoker (not shown) for transporting the incinerated material provided at the bottom of the incinerator. The falling incineration ash is collected by the hopper 130 and falls into the water stored in the water tank 110 in advance. The incinerated ash containing water in the water tank 110 is pushed out to the upper left in FIG. The extruded wet incineration ash is carried out of the incineration ash collection unit by a conveyor (not shown) provided below, and is subjected to predetermined processing thereafter.

【0004】また、焼却灰回収部の水槽110に貯留さ
れた水は、その中に焼却灰が堆積するため、アルカリ性
の水質である。一方、焼却灰中には、アルミニウムが含
まれている。そして、アルカリ性の水とアルミニウムと
が反応を起こすと、水素ガスを発生することが知られて
いる。
[0004] The water stored in the water tank 110 of the incineration ash collection section has an alkaline water quality because incineration ash accumulates therein. On the other hand, incinerated ash contains aluminum. It is known that when alkaline water reacts with aluminum, hydrogen gas is generated.

【0005】そこで、水中に落下した焼却灰から発生す
る水素や臭気等が焼却炉外部へ漏れるのを防止するため
に、図2に示すように焼却灰回収部の仕切板170より
も右側上部に、燃焼用空気供給手段に連通するパイプ1
80が設けられている。これにより、仕切板170より
も左側で発生した水素や臭気等は焼却室へ戻り、焼却炉
外部に漏れることはない。
Therefore, in order to prevent hydrogen, odor, and the like generated from the incinerated ash falling into water from leaking to the outside of the incinerator, as shown in FIG. , Pipe 1 communicating with combustion air supply means
80 are provided. As a result, hydrogen, odor, and the like generated on the left side of the partition plate 170 return to the incinerator and do not leak outside the incinerator.

【0006】[0006]

【発明が解決しようとする課題】しかし、上述した水素
ガスは、水中に落下した焼却灰からだけではなく、搬出
機構により水中から押し出された焼却灰からも微量では
あるが発生していることが判明した。そして、図2に示
すような焼却灰回収部の構造上、焼却灰回収部の上カバ
ー111側に水素ガスが溜まっていることも判明した。
However, the above-mentioned hydrogen gas is generated not only from the incinerated ash dropped into the water but also from the incinerated ash pushed out from the water by the carry-out mechanism, though in a small amount. found. Then, it was also found that hydrogen gas was accumulated on the upper cover 111 side of the incinerated ash collecting section due to the structure of the incinerated ash collecting section as shown in FIG.

【0007】このように上カバー111側に水素ガスが
溜まることは、水素ガスが焼却炉外部に漏れることを防
止する上では好ましいものの、安全上は必ずしも好まし
いことではない。
Although it is preferable to prevent the hydrogen gas from leaking to the outside of the incinerator, it is not always preferable from the viewpoint of safety that the hydrogen gas accumulates on the upper cover 111 side.

【0008】そこで、本発明の課題は、焼却灰回収部で
発生する水素ガスを効率よく回収できる焼却炉を提供す
ることである。
Accordingly, an object of the present invention is to provide an incinerator that can efficiently collect hydrogen gas generated in an incineration ash recovery section.

【0009】[0009]

【課題を解決するための手段】本発明によれば、焼却室
下に備えられた水槽と、前記水槽内での滞積物を外部へ
搬出する搬出機構とを備え、前記焼却室から落下する焼
却灰を湿らせた上で回収する焼却灰回収部を有する焼却
炉において、前記焼却灰回収部の上カバーに、ガス排出
口を備えていることを特徴とする焼却炉が得られる。
According to the present invention, there is provided a water tank provided below the incineration chamber, and a discharge mechanism for discharging the accumulation in the water tank to the outside, and falls from the incineration chamber. In an incinerator having an incineration ash recovery section for recovering the incineration ash after moistening the incineration ash, an incinerator characterized in that a gas discharge port is provided in an upper cover of the incineration ash recovery section is obtained.

【0010】本発明によればまた、前記ガス排出口に
は、焼却室内に燃焼用空気を供給する燃焼用空気供給手
段に連通するパイプが接続され、該ガス排出口から排出
されるガスを前記燃焼用空気供給手段側に強制的に吸引
する前記焼却炉が得られる。
According to the present invention, a pipe communicating with combustion air supply means for supplying combustion air into the incinerator is connected to the gas discharge port, and the gas discharged from the gas discharge port is connected to the gas discharge port. The incinerator is forcibly sucked into the combustion air supply means.

【0011】本発明によればさらに、前記ガス排出口を
開閉可能な蓋部材を備える前記焼却炉が得られる。
According to the present invention, there is further provided the incinerator provided with a lid member capable of opening and closing the gas discharge port.

【0012】本発明によればまた、前記ガス排出口は、
前記焼却灰回収部の上カバーのうちの焼却灰が回収され
る側に備えられている前記焼却炉が得られる。
According to the present invention, the gas outlet is
The incinerator provided on the side where the incinerated ash is collected in the upper cover of the incinerated ash collecting section is obtained.

【0013】[0013]

【発明の実施の形態】以下、図面を参照して、本発明の
実施の形態による焼却炉を説明する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An incinerator according to an embodiment of the present invention will be described below with reference to the drawings.

【0014】図1は、本発明の実施の形態による焼却灰
回収部を有する焼却炉の要部を示す図である。図1を参
照して、本焼却炉は、従来例と同様に、図中上方の焼却
室(図示せず)下に備えられた水槽10と、水槽10内
での滞積物を外部へ搬出する搬出機構20と、焼却室内
の圧力を所定値に維持するための仕切板70とを備える
焼却灰回収部を有している。そして、焼却室内にて被焼
却物の焼却にともなって発生する焼却灰は、例えば、焼
却室の底部に設けられた被焼却物搬送用のストーカ(図
示せず)の隙間から落下する。落下する焼却灰は、ホッ
パ30により集められ、水槽10内に予め貯留されてい
る水中に落下する。水槽10内にて水分を含んだ焼却灰
は、搬出機構20によって図中左上方へ押し出される。
押し出された湿った焼却灰は、下方に設けられたコンベ
ア(図示せず)により焼却灰回収部の外部へ搬出され、
以後、所定の処理がなされる。
FIG. 1 is a diagram showing a main part of an incinerator having an incineration ash recovery unit according to an embodiment of the present invention. Referring to FIG. 1, this incinerator carries out a water tank 10 provided below an incineration chamber (not shown) in the upper part of the figure and a product accumulated in the water tank 10 to the outside similarly to the conventional example. And a partition plate 70 for maintaining the pressure in the incinerator at a predetermined value. Then, incineration ash generated as a result of incineration of the incinerator in the incinerator falls, for example, from a gap of a stoker (not shown) for transporting the incinerator provided at the bottom of the incinerator. The falling incineration ash is collected by the hopper 30 and falls into water previously stored in the water tank 10. The incinerated ash containing water in the water tank 10 is pushed out to the upper left in the figure by the carry-out mechanism 20.
The extruded wet incineration ash is carried out of the incineration ash collection section by a conveyor (not shown) provided below,
Thereafter, predetermined processing is performed.

【0015】さらに、本焼却炉では、焼却灰回収部の上
カバー11に、ガス排出口41を備えている。上カバー
11のガス排出口41近傍は、ガス排出口41に近付く
にしたがって高さが高くなるような傾斜をもって形成さ
れている。水槽10内のアルカリ性の水と焼却灰に含ま
れるアルミニウムとが反応することにより発生する水素
ガスは、傾斜をもった焼却灰回収部の上カバー11に沿
って、ガス排出口41へ向かう。
Further, in the present incinerator, a gas discharge port 41 is provided in the upper cover 11 of the incineration ash collecting section. The vicinity of the gas outlet 41 of the upper cover 11 is formed with an inclination such that the height increases as the gas outlet 41 is approached. The hydrogen gas generated by the reaction between the alkaline water in the water tank 10 and the aluminum contained in the incineration ash travels toward the gas discharge port 41 along the upper cover 11 of the incineration ash recovery section having an inclination.

【0016】ガス排出口41には、焼却室内に燃焼用空
気を供給する燃焼用空気供給手段(図示せず)に連通す
るパイプ51、52が接続されている。ガス排出口41
から排出される水素ガスは、燃焼用空気供給手段が備え
る送風機等により、燃焼用空気供給手段側に強制的に吸
引される。強制的に吸引された水素ガスは、燃焼用空気
供給手段において燃焼用空気と混合されて焼却室内に供
給され、燃焼に利用される。
The gas outlet 41 is connected to pipes 51 and 52 communicating with combustion air supply means (not shown) for supplying combustion air into the incinerator. Gas outlet 41
Is discharged to the combustion air supply means by a blower or the like provided in the combustion air supply means. The forcibly sucked hydrogen gas is mixed with the combustion air in the combustion air supply means, supplied to the incinerator, and used for combustion.

【0017】また、本焼却炉では、ガス排出口41に開
閉可能な蓋部材61を備えている。焼却炉の運転が停止
中には、蓋部材61を開けておくことで、水素ガスを大
気中に放出することができる。即ち、燃焼用空気供給手
段による強制的な吸引がなされなくとも、焼却灰回収部
内に水素ガスが溜まることがない。また、蓋部材61を
開けた部分に、水素の回収装置を接続して、回収するよ
うにしてもよい。
Further, the incinerator has a lid member 61 which can be opened and closed at the gas discharge port 41. While the operation of the incinerator is stopped, the hydrogen gas can be released into the atmosphere by keeping the lid member 61 open. That is, even if forced suction by the combustion air supply means is not performed, hydrogen gas does not accumulate in the incineration ash recovery unit. Further, a hydrogen recovery device may be connected to a portion where the lid member 61 is opened to recover the hydrogen.

【0018】[0018]

【発明の効果】本発明による焼却炉は、焼却室下に備え
られた水槽と、水槽内での滞積物を外部へ搬出する搬出
機構とを備え、焼却室から落下する焼却灰を湿らせた上
で回収する焼却灰回収部を有する焼却炉において、焼却
灰回収部の上カバーに、ガス排出口を備えているため、
焼却灰回収部で発生する水素ガスを効率よく回収するこ
とができる。
The incinerator according to the present invention includes a water tank provided below the incineration chamber, and a discharge mechanism for discharging the accumulation in the water tank to the outside, so as to wet the incineration ash falling from the incineration chamber. In an incinerator with an incineration ash collection unit that collects waste after collecting
Hydrogen gas generated in the incineration ash recovery section can be efficiently recovered.

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

【図1】本発明の実施の形態による焼却灰回収部を有す
る焼却炉の要部を示す図である。
FIG. 1 is a diagram showing a main part of an incinerator having an incineration ash recovery unit according to an embodiment of the present invention.

【図2】従来例による焼却灰回収部を有する焼却炉の要
部を示す図である。
FIG. 2 is a diagram showing a main part of an incinerator having an incineration ash recovery unit according to a conventional example.

【符号の説明】[Explanation of symbols]

10、110 水槽 11、111 上カバー 20、120 搬出機構 30、130 ホッパ 41 ガス排出口 51、52 パイプ 61 蓋部材 70、170 仕切板 180 パイプ 10, 110 Water tank 11, 111 Upper cover 20, 120 Carry-out mechanism 30, 130 Hopper 41 Gas outlet 51, 52 Pipe 61 Cover member 70, 170 Partition plate 180 Pipe

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】 焼却室下に備えられた水槽と、前記水槽
内での滞積物を外部へ搬出する搬出機構とを備え、前記
焼却室から落下する焼却灰を湿らせた上で回収する焼却
灰回収部を有する焼却炉において、前記焼却灰回収部の
上カバーに、ガス排出口を備えていることを特徴とする
焼却炉。
1. An incineration ash falling from the incineration chamber is collected after being moistened and provided with a water tank provided below the incineration chamber and a carry-out mechanism for taking out the accumulation in the water tank to the outside. An incinerator having an incineration ash recovery section, wherein a gas outlet is provided in an upper cover of the incineration ash recovery section.
【請求項2】 前記ガス排出口には、前記焼却室内に燃
焼用空気を供給する燃焼用空気供給手段に連通するパイ
プが接続され、該ガス排出口から排出されるガスを前記
燃焼用空気供給手段側に強制的に吸引する請求項1に記
載の焼却炉。
2. A pipe connected to combustion air supply means for supplying combustion air into the incineration chamber is connected to the gas discharge port, and gas discharged from the gas discharge port is supplied to the combustion air supply means. 2. The incinerator according to claim 1, wherein the incinerator is forcibly sucked into the means.
【請求項3】 前記ガス排出口を開閉可能な蓋部材を備
える請求項1または2に記載の焼却炉。
3. The incinerator according to claim 1, further comprising a lid member capable of opening and closing the gas discharge port.
【請求項4】 前記ガス排出口は、前記焼却灰回収部の
上カバーのうちの焼却灰が回収される側に備えられてい
る請求項1乃至3のいずれかに記載の焼却炉。
4. The incinerator according to claim 1, wherein the gas discharge port is provided on a side of the upper cover of the incineration ash collection section where the incineration ash is collected.
JP9311959A 1997-11-13 1997-11-13 Incinerator Pending JPH11141849A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9311959A JPH11141849A (en) 1997-11-13 1997-11-13 Incinerator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9311959A JPH11141849A (en) 1997-11-13 1997-11-13 Incinerator

Publications (1)

Publication Number Publication Date
JPH11141849A true JPH11141849A (en) 1999-05-28

Family

ID=18023503

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9311959A Pending JPH11141849A (en) 1997-11-13 1997-11-13 Incinerator

Country Status (1)

Country Link
JP (1) JPH11141849A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017197391A (en) * 2016-04-26 2017-11-02 株式会社タクマ Method and system for recovering hydrogen gas from incineration ash
JP7152626B1 (en) * 2022-08-08 2022-10-12 三菱重工環境・化学エンジニアリング株式会社 Ash extruder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017197391A (en) * 2016-04-26 2017-11-02 株式会社タクマ Method and system for recovering hydrogen gas from incineration ash
JP7152626B1 (en) * 2022-08-08 2022-10-12 三菱重工環境・化学エンジニアリング株式会社 Ash extruder

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