JPH11309319A - Dust collecting mechanism and exhaust gas treatment apparatus - Google Patents

Dust collecting mechanism and exhaust gas treatment apparatus

Info

Publication number
JPH11309319A
JPH11309319A JP24532898A JP24532898A JPH11309319A JP H11309319 A JPH11309319 A JP H11309319A JP 24532898 A JP24532898 A JP 24532898A JP 24532898 A JP24532898 A JP 24532898A JP H11309319 A JPH11309319 A JP H11309319A
Authority
JP
Japan
Prior art keywords
dust
annular groove
exhaust gas
collecting mechanism
dust collecting
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
Application number
JP24532898A
Other languages
Japanese (ja)
Other versions
JP3540948B2 (en
Inventor
Mitsuyuki Nishihara
充幸 西原
Tomoyuki Takeda
智征 竹田
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 JP24532898A priority Critical patent/JP3540948B2/en
Publication of JPH11309319A publication Critical patent/JPH11309319A/en
Application granted granted Critical
Publication of JP3540948B2 publication Critical patent/JP3540948B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Separating Particles In Gases By Inertia (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a dust collecting mechanism and an exhaust gas treatment apparatus capable of being constituted compactly by enhancing the utilization efficiency of a space in spite of a restricted building site. SOLUTION: A deflecting plate 6a imparting a lateral speed component to the gas flowing in a bag filter 55 from an economizer and an annular groove 8 receiving the falling dust separated from the inflow gas by the deflecting plate 6a is provided. The falling dust to the annular groove 8 is scraped up by a squeeze plate 10 accompanied by the rotation of the annular groove 8 to be discharged by a screw conveyor 17.

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、各種の廃棄物処理
炉で発生した排ガスの処理に用いられる集塵機構、及
び、その集塵機構を備えた排ガス処理装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust collecting mechanism used for treating exhaust gas generated in various kinds of waste treatment furnaces, and an exhaust gas treating apparatus provided with the dust collecting mechanism.

【0002】[0002]

【従来の技術】各種のゴミ焼却炉や溶融炉では、発生し
た排ガスを排気する前に、廃熱ボイラ、エコノマイザ、
バグフィルタといった様々な排ガス処理装置を介してエ
ネルギーの再利用や排ガスの浄化を行っているが、図9
に示すように、各排ガス処理装置は、装置本体1の下端
部に、排ガスに混入した火灰や煤煙等のダストを落下集
積する断面視「V」字状のホッパーHを設けるととも
に、ホッパーHの底部にダストを排出するロータリーバ
ルブBを設けてなる集塵機構を備えていた。そして、廃
熱ボイラ、エコノマイザ、バグフィルタといった複数の
排ガス処理装置を排ガスの経路に沿って水平方向に並設
していた。
2. Description of the Related Art In various refuse incinerators and melting furnaces, a waste heat boiler, an economizer,
Energy reuse and exhaust gas purification are performed through various exhaust gas treatment devices such as bag filters.
As shown in FIG. 1, each exhaust gas treatment device is provided with a hopper H having a V-shaped cross section for dropping and accumulating dust such as fire ash and soot mixed in the exhaust gas at the lower end of the device main body 1. Was provided with a dust collecting mechanism provided with a rotary valve B for discharging dust at the bottom of the. In addition, a plurality of exhaust gas treatment devices such as a waste heat boiler, an economizer, and a bag filter are horizontally arranged along the path of the exhaust gas.

【0003】[0003]

【発明が解決しようとする課題】近年、美観の問題や環
境の問題等から廃棄物処理炉に対する建設用地の獲得が
非常に困難な状況にあり、特に地価の高い都心部で顕著
である。そこで、敷地の単位面積当たりの利用率を向上
すべく上述した排ガス処理装置を上下方向に連設するこ
とが考えられるが、各集塵機構の上下方向の空間専有率
や排ガス流路確保のための複雑な配管の施工を考えると
上下方向に極めて大きくなり、必ずしも好ましい結果を
もたらすとは限らない。
In recent years, it has been very difficult to obtain a construction site for a waste treatment furnace due to aesthetic problems, environmental problems, and the like, and this is particularly remarkable in a city center where land prices are high. In order to improve the utilization rate per unit area of the site, it is conceivable to install the above-mentioned exhaust gas treatment equipment vertically, but it is necessary to secure the space occupancy rate of each dust collection mechanism in the vertical direction and to secure the exhaust gas flow path. Considering the construction of a complicated pipe, it becomes extremely large in the vertical direction, and does not always bring about a favorable result.

【0004】本発明の目的は、このような従来技術の欠
点を解消し、限られた建設用地でありながらも空間の利
用効率を向上してコンパクトに構成し得る集塵機構及び
排ガス処理装置を提供する点にある。
SUMMARY OF THE INVENTION An object of the present invention is to provide a dust collecting mechanism and an exhaust gas treatment apparatus which can solve the above-mentioned drawbacks of the prior art and can be made compact by improving the space utilization efficiency even though it is a limited construction site. Is to do.

【0005】[0005]

【課題を解決するための手段】この目的を達成するため
本発明に係る集塵機構の第一の特徴構成は、特許請求の
範囲の欄の請求項1に記載した通り、装置本体の底部に
ガス流入口を設け、前記ガス流入口の後段に、上方へ向
かうガス流を側方への速度成分を持たせるように偏向す
る偏向板を設け、前記ガス流入口の周囲に、流入ガスに
混入したダストを受け止める環状溝を設けるとともに、
前記環状溝に堆積したダストを回収する回収機構とを備
えてなる点にある。第一の特徴構成によれば、下方から
流入するガスが偏向板に衝突し、または偏向板で横方向
に反転し所定の経路に沿って通流する過程で、混入火灰
や煤じんなどといったダストが重力や慣性力により、ガ
ス流入口の周囲に設けた環状溝に堆積するので、環状溝
に堆積したダストを回収機構により回収すれば、下方か
ら上方へのガス流を維持しながら効果的にダストを回収
できるようになる。
In order to achieve this object, a first feature of the dust collecting mechanism according to the present invention is as described in claim 1 of the claims. An inlet is provided, and a deflecting plate for deflecting an upward gas flow so as to have a lateral velocity component is provided at a stage subsequent to the gas inlet, and around the gas inlet, mixed with the inflow gas. In addition to providing an annular groove for receiving dust,
A collecting mechanism for collecting dust accumulated in the annular groove. According to the first characteristic configuration, the gas flowing from below collides with the deflector plate, or in the process of being laterally reversed by the deflector plate and flowing along a predetermined path, such as mixed ash or soot and dust. Dust accumulates in the annular groove around the gas inlet due to gravity and inertial force.If the dust collected in the annular groove is collected by the collection mechanism, it is effective while maintaining the gas flow from below to above. Dust can be collected at the same time.

【0006】本発明に係る集塵機構の第二の特徴構成
は、特許請求の範囲の欄の請求項2に記載した通り、上
述した第一の特徴構成に加えて、前記回収機構は、前記
環状溝を回動させる駆動機構と、前記環状溝の回動に伴
い前記環状溝に堆積したダストを掻き集めるスクイーズ
機構と、掻き集められたダストを前記環状溝から排出す
る排出機構とで構成してなる点にある。第二の特徴構成
によれば、駆動機構により環状溝を回動させると、スク
イーズ機構により環状溝に堆積したダストが掻き集めら
れるので、集められたダストを例えば吸引搬送機構や落
下搬送機構を用いた排出機構により環状溝から排出する
ように構成すれば、単純な構成で効果的にダストの回収
が可能になる。
A second characteristic configuration of the dust collecting mechanism according to the present invention is, as described in claim 2 of the claims, in addition to the above-mentioned first characteristic configuration, the collection mechanism includes the annular member. A drive mechanism for rotating the groove, a squeeze mechanism for scraping dust accumulated in the annular groove with the rotation of the annular groove, and a discharge mechanism for discharging the scraped dust from the annular groove are provided. On the point. According to the second characteristic configuration, when the annular groove is rotated by the drive mechanism, dust accumulated in the annular groove is raked by the squeeze mechanism, and thus the collected dust is used, for example, by using a suction transport mechanism or a drop transport mechanism. If the discharge mechanism is configured to discharge from the annular groove, dust can be effectively collected with a simple configuration.

【0007】本発明に係る集塵機構の第三の特徴構成
は、特許請求の範囲の欄の請求項3に記載した通り、上
述した第一または第二の特徴構成に加えて、前記偏向板
の上方を流れるガス流から落下するダストを前記環状溝
に導くガイド板を設けてなる点にある。第三の特徴構成
によれば、偏向板に衝突し、または偏向板で横方向に反
転される際に回収されずに、そのままガスとともに上方
に通流したものの、その後重力落下したダストが、偏向
板上に堆積し、または、ガス流入口を介して上流側に落
下するのを防止して、ガイド板に沿って前記環状溝に導
かれるのである。
A third feature of the dust collecting mechanism according to the present invention is, as described in claim 3 of the claims, in addition to the first or second feature described above, in addition to the first or second feature. The present invention is characterized in that a guide plate for guiding dust falling from a gas flow flowing upward to the annular groove is provided. According to the third characteristic configuration, dust that has not passed through the deflecting plate or is not collected when the deflecting plate is turned over in the horizontal direction, and has flowed upward together with the gas as it is, but subsequently falls by gravity, is deflected. It is guided to the annular groove along the guide plate while preventing it from depositing on the plate or dropping upstream through the gas inlet.

【0008】本発明に係る排ガス処理装置の第四の特徴
構成は、特許請求の範囲の欄の請求項4に記載した通
り、上述した第一から第三の特徴構成のいずれかの集塵
機構を備えた装置本体の天井部にガス流出口を設けてな
る点にある。第四の特徴構成によれば、天井部にガス流
出口を設けてあるので、排ガス処理装置を上下にそのま
ま配置すれば、下方の排ガス処理装置のガス流出口と上
方の排ガス処理装置のガス流入口とを、別途の長い配管
を行うことなく適当なアダプターを用いて直結できるの
で上下方向にコンパクトに配置構成できる。
A fourth characteristic configuration of the exhaust gas treatment apparatus according to the present invention is, as described in claim 4 of the claims, a dust collection mechanism according to any one of the first to third characteristic configurations described above. It is characterized in that a gas outlet is provided on the ceiling of the apparatus main body provided. According to the fourth characteristic configuration, since the gas outlet is provided in the ceiling portion, if the exhaust gas treatment device is arranged vertically, the gas outlet of the lower exhaust gas treatment device and the gas flow outlet of the upper exhaust gas treatment device can be used. The inlet can be directly connected with an appropriate adapter without using a separate long pipe, so that it can be compactly arranged in the vertical direction.

【0009】本発明による排ガス処理装置の第五の特徴
構成は、特許請求の範囲の欄の請求項5に記載した通
り、上述の第四の特徴構成に加えて、前記集塵機構より
上方で装置本体を吊下支持する支持機構を備えてなる点
にある。第五の特徴構成によれば、各排ガス処理装置毎
に確実に吊下支持可能となり、下方の排ガス処理装置に
過大な荷重が掛かるおそれなく、排ガス処理装置を上下
に連設できるのであり、その際に、前記集塵機構より上
方で吊下支持されることから、機構の剛性や前記環状溝
を回動する駆動機構の構成等、集塵機構自体の構成の自
由度を確保できるのである。
A fifth characteristic configuration of the exhaust gas treatment apparatus according to the present invention is, in addition to the fourth characteristic configuration described above, as described in claim 5 of the claims, in addition to the device above the dust collecting mechanism. It is characterized in that a support mechanism for suspending and supporting the main body is provided. According to the fifth characteristic configuration, each of the exhaust gas treatment devices can be reliably suspended and supported, and the exhaust gas treatment devices can be connected vertically without fear of applying an excessive load to the lower exhaust gas treatment device. In this case, since the dust collecting mechanism is suspended above the dust collecting mechanism, the degree of freedom of the structure of the dust collecting mechanism itself, such as the rigidity of the mechanism and the structure of a driving mechanism for rotating the annular groove, can be ensured.

【0010】[0010]

【発明の実施の形態】以下に本発明の実施の形態を図面
に基づいて説明する。本発明は、各種のゴミ焼却炉や溶
融炉といった廃棄物処理炉で使用される廃熱ボイラ、エ
コノマイザ、バグフィルタといった様々な排ガス処理装
置に使用される集塵機構、及び、その集塵機構を備えた
排ガス処理装置に関するものであり、地中に建設された
都市ゴミ焼却システムに使用される一例を説明する。都
市ゴミ焼却システムは、図3から図5に示すように、地
中に掘削形成された縦穴50の周囲にコンクリート壁5
1を形成し、横方向に二分割された一方の空間S1をメ
ンテナンス用空間、他方の空間を設備配置空間S2と
し、前記設備配置空間S2の底部に、ストーカ式焼却炉
52及びそのストーカ式焼却炉52からの焼却残渣を溶
融処理する表面溶融炉53を併設するとともに、前記ス
トーカ式焼却炉52の上方に廃熱ボイラ49を設置し、
前記表面溶融炉53の上方に前記廃熱ボイラ49を通流
した排ガスの余熱を利用してボイラ水を加熱するエコノ
マイザー54を設置し、さらにその上方に、バグフィル
ター55、ガス再加熱器56、触媒脱硝装置57を順に
設置してあり、誘引ファン48を介して煙突(図示せ
ず)から排気するように構成してある。ここに、前記表
面溶融炉53からの排ガスは二次燃焼された後に、前記
エコノマイザー54に合流するように構成してある。
Embodiments of the present invention will be described below with reference to the drawings. The present invention is provided with a dust collection mechanism used in various exhaust gas treatment devices such as waste heat boilers, economizers, and bag filters used in waste treatment furnaces such as various garbage incinerators and melting furnaces, and a dust collection mechanism for the same. An example relating to an exhaust gas treatment apparatus used in an incineration system for municipal garbage constructed underground will be described. As shown in FIGS. 3 to 5, the municipal waste incineration system includes a concrete wall 5 around a vertical hole 50 excavated and formed in the ground.
1, a space S1 divided into two in the horizontal direction is a maintenance space, and the other space is a facility arrangement space S2. At the bottom of the facility arrangement space S2, a stoker-type incinerator 52 and its stoker-type incineration are provided. Along with a surface melting furnace 53 for melting and processing the incineration residue from the furnace 52, a waste heat boiler 49 is installed above the stoker type incinerator 52,
An economizer 54 is installed above the surface melting furnace 53 to heat the boiler water by using the residual heat of the exhaust gas flowing through the waste heat boiler 49. Above the economizer 54, a bag filter 55 and a gas reheater 56 are provided. , A catalyst denitration device 57 is installed in order, and the exhaust gas is exhausted from a chimney (not shown) via an induction fan 48. Here, the exhaust gas from the surface melting furnace 53 is configured to be joined to the economizer 54 after being subjected to secondary combustion.

【0011】前記ストーカ式焼却炉52へゴミを投入す
るゴミホッパ58の上方の縦長の空間S3に、収集ゴミ
の収容空間としてのゴミピット59を配置してある。前
記ゴミピット59は、ダンパ機構60により上下方向に
複数の収容部59a,59b,……に分割構成してあ
り、前記ダンパ機構60の開閉操作により、最下段の収
容部59aから順番にゴミを充填するように構成してあ
り、前記ゴミホッパ58へ投入されたゴミがさらに上方
に堆積したゴミにより圧密化されるのを回避する。
A garbage pit 59 as a storage space for collected garbage is disposed in a vertically long space S3 above a garbage hopper 58 for charging garbage into the stoker-type incinerator 52. The dust pit 59 is vertically divided into a plurality of storage portions 59a, 59b,... By a damper mechanism 60. By opening and closing the damper mechanism 60, dust is sequentially filled from the lowest storage portion 59a. The dust put in the dust hopper 58 is prevented from being compacted by dust accumulated further upward.

【0012】本発明に係る排ガス処理装置1は、前記エ
コノマイザー54と前記バグフィルター55に具現化さ
れており、以下に詳述する。前記バグフィルター55
は、図1(イ)に示すように、複数の円筒状の濾布3を
備え、排ガスを該筒状体3の外部から内部へ通流させる
際にダストを分離して、周壁5の天井部に形成したガス
流出口4から排気する円筒状の装置本体2と、装置本体
2にガスが通流する際に分離されたダストを集めて装置
外部に排出する集塵機構Aとからなる。ここに、バグフ
ィルターそのものも集塵作用を奏するものであるが、こ
こにいう集塵機構Aとは、積極的に集塵を主目的とする
排ガス処理装置という意味では無く、集塵を主目的とす
る排ガス処理装置も含め、熱交換など他の主目的を有す
る排ガス処理装置においても、そこで結果的に集塵され
たものを装置内で回収し、装置外に除去するための補助
的機構を意味する。
The exhaust gas treatment apparatus 1 according to the present invention is embodied in the economizer 54 and the bag filter 55, and will be described in detail below. The bag filter 55
As shown in FIG. 1A, a plurality of cylindrical filter cloths 3 are provided to separate dust when flowing exhaust gas from the outside to the inside of the cylindrical body 3 and to separate the dust into the exhaust gas. The apparatus includes a cylindrical device main body 2 that exhausts gas from a gas outlet 4 formed in the unit, and a dust collection mechanism A that collects dust separated when gas flows through the device main body 2 and discharges the dust to the outside of the device. Here, the bag filter itself also has a dust collecting action, but the dust collecting mechanism A here does not mean an exhaust gas treatment apparatus mainly for collecting dust actively, but mainly for collecting dust. A waste gas treatment device that has another main purpose, such as heat exchange, including an exhaust gas treatment device that performs heat exchange, means an auxiliary mechanism that collects the resulting dust in the device and removes it outside the device. I do.

【0013】前記集塵機構Aは、前記装置本体2の底部
に形成されたガス流入口7の後段に設けられ、かつ、前
記ガス流入口7から上方へ向かうガス流を側方への速度
成分を持たせるように偏向する偏向板6aと、前記ガス
流入口7の周囲に設けられ、外径が前記装置本体2より
大であり内径が前記偏向板6aより小なり、かつ、流入
ガスに混入したダストを受け止める環状溝8と、前記環
状溝8に堆積したダストを回収する回収機構Bとを備え
て構成してあり、以て、前記ガス流入口7から上方へ向
けて流入したガスを前記偏向板6aに衝突させ、また
は、上方へ向かうガス流を側方へ反転させて、慣性力に
より前記環状溝8に集塵するように構成してある。
The dust collecting mechanism A is provided at a stage subsequent to the gas inlet 7 formed at the bottom of the apparatus main body 2 and converts the upward gas flow from the gas inlet 7 into a lateral velocity component. A deflecting plate 6a for deflecting the liquid to be held, and provided around the gas inlet 7, having an outer diameter larger than the apparatus main body 2, an inner diameter smaller than the deflecting plate 6a, and mixed with the inflow gas. An annular groove 8 for receiving dust and a collecting mechanism B for collecting dust accumulated in the annular groove 8 are provided, so that the gas flowing upward from the gas inlet 7 is deflected. It is configured to collide with the plate 6a or to reverse the upward gas flow to the side to collect dust in the annular groove 8 by inertia force.

【0014】前記偏向板6aで偏向された後にさらに上
昇するガス流に抗して落下し、または、前記濾布3の外
表面から落下するダストを前記環状溝8に導くべく、中
心部から周辺部にかけて、好ましくは、ダストの安息角
以上の角度で、傾斜したガイド板6bを設けてある。
尚、本実施形態では、前記偏向板6aとガイド板6bを
兼用させ一体化したものを説明しているが、前記偏向板
6aとガイド板6bは別体で構成してもよく、前記偏向
板6aは、上方へ向かうガス流を側方への速度成分を持
たせるように偏向し、偏向の際のガス流の衝突や反転に
よりダストが分離可能なものであれば、その形状は特に
限定するものではなく、単純な平板状のものであっても
よい。
After being deflected by the deflecting plate 6a, dust falling against the gas flow that rises further or falling from the outer surface of the filter cloth 3 to the annular groove 8 is guided from the center to the periphery to guide the dust. A guide plate 6b that is inclined at an angle that is preferably equal to or greater than the angle of repose of dust is provided on the portion.
In this embodiment, the deflection plate 6a and the guide plate 6b are combined and integrated, but the deflection plate 6a and the guide plate 6b may be formed separately. 6a deflects the upward gas flow so as to have a lateral velocity component, and the shape is particularly limited as long as dust can be separated by collision or inversion of the gas flow at the time of deflection. Instead, it may be a simple flat plate.

【0015】前記環状溝8の外縁部には、前記装置本体
2の周壁5を外方から覆うように側壁13を立設してあ
り、前記集塵機構Aが、該側壁13を介して前記装置本
体2の周壁5に回動可能に支持されている。詳述する
と、前記装置本体2の周壁5の中程に設けた円環状の支
持台14に、前記環状溝8の側壁13の上端部に形成し
た張出部をローラ15を介して回動自在に載置してあ
り、前記環状溝8の側壁13の外周にモータ18とギア
機構19でなる駆動機構Cを設けて回動可能に構成して
あり、さらに、前記支持台14の下方で前記装置本体2
の周壁5と前記環状溝8の側壁13とを水封してある。
尚、前記偏向板6a及びガイド板6bは、前記環状溝8
に連結支持して環状溝8と一体に回動可能に構成してあ
るが、前記装置本体2の側に連結支持するものであって
もよい。
A side wall 13 is erected at an outer edge of the annular groove 8 so as to cover the peripheral wall 5 of the apparatus main body 2 from the outside. It is rotatably supported by the peripheral wall 5 of the main body 2. More specifically, a projecting portion formed at the upper end of the side wall 13 of the annular groove 8 is rotatable via a roller 15 on an annular support base 14 provided in the middle of the peripheral wall 5 of the apparatus main body 2. A drive mechanism C comprising a motor 18 and a gear mechanism 19 is provided on the outer periphery of the side wall 13 of the annular groove 8 so as to be rotatable. Device body 2
And the side wall 13 of the annular groove 8 are water-sealed.
The deflecting plate 6a and the guide plate 6b are connected to the annular groove 8
Although it is configured so as to be connected and supported so as to be able to rotate integrally with the annular groove 8, it may be connected and supported on the side of the apparatus main body 2.

【0016】前記回収機構Bは、前記環状溝8を回動さ
せる駆動機構Cと、前記環状溝8の回動に伴い前記環状
溝8に堆積したダストを掻き集めるスクイーズ機構D
と、掻き集められたダストを前記環状溝8から排出する
排出機構とで構成してなり、前記環状溝8の内側壁部に
傾斜面を設けて落下ダストを前記スクイーズ機構D側に
搬送するように構成してある。前記スクイーズ機構D
は、図1(ロ)及び図2に示すように、前記環状溝8の
溝幅方向中央部、好ましくは前記装置本体2の周壁5の
下方に設けられ、高さ方向に一部9aが切り欠かれて前
記周壁5との間で開口が形成される固定の環状堰9と、
前記環状堰9よりも内側、かつ、前記切り欠き部9aよ
り前記環状溝8の回動方向下流側に配置され、上方側ほ
ど前記切り欠き部9a側に捻られたスクイーズ板10と
で構成してあり、前記環状堰9よりも内側に堆積したダ
ストが、前記環状溝8の回動に伴い前記スクイーズ板1
0で掻き集められ、前記切り欠き部9aから前記環状堰
9よりも外側に掻き出されるように構成してある。
The collecting mechanism B includes a driving mechanism C for rotating the annular groove 8 and a squeezing mechanism D for scraping dust accumulated in the annular groove 8 as the annular groove 8 rotates.
And a discharge mechanism for discharging the raked dust from the annular groove 8. An inclined surface is provided on the inner side wall of the annular groove 8 so that the falling dust is conveyed to the squeeze mechanism D side. It is composed. The squeeze mechanism D
As shown in FIGS. 1 (b) and 2, the annular groove 8 is provided at the center of the annular groove 8 in the groove width direction, preferably below the peripheral wall 5 of the apparatus main body 2, and a part 9a is cut in the height direction. A fixed annular weir 9 which is chipped to form an opening with the peripheral wall 5;
The squeeze plate 10 is disposed inside the annular weir 9 and downstream of the notch 9a in the rotation direction of the annular groove 8, and is twisted toward the notch 9a toward the upper side. The dust accumulated on the inner side of the annular weir 9 causes the squeeze plate 1
0, and is scraped out of the annular weir 9 from the notch 9a.

【0017】前記排出機構Eは、図1に示すように、前
記環状堰9よりも外側であって前記環状溝8の底部に形
成した開口11と、前記切り欠き部9aより前記環状溝
8の回動方向下流側に設けたブレード12と、前記開口
11より落下したダストを外部に搬送するスクリュー式
コンベア機構17とで構成してある。開口11は、図1
に示すように、複数箇所に設けてもよく、開口11に対
応して、図示はしていないが、切り欠き部9a、ブレー
ド12、コンベア機構17とを設けることができる。こ
のような構成によって、迅速にダストを環状溝8より排
出することができる。
As shown in FIG. 1, the discharge mechanism E includes an opening 11 formed outside the annular weir 9 at the bottom of the annular groove 8 and a cutout 9a for opening the annular groove 8. It comprises a blade 12 provided on the downstream side in the rotation direction and a screw type conveyor mechanism 17 for transporting dust dropped from the opening 11 to the outside. The opening 11 is shown in FIG.
As shown in (1), a notch 9a, a blade 12, and a conveyor mechanism 17 can be provided corresponding to the opening 11 (not shown). With such a configuration, dust can be quickly discharged from the annular groove 8.

【0018】そして、前記装置本体2の周壁5のうち、
前記集塵機構Aの支持部よりも上方部位に側方に突出し
たブラケット20でなる支持機構を備えてあり、このブ
ラケット20を例えば横梁などに取り付けることによ
り、前記集塵機構Aを回動可能に支持しながらも、装置
本体2を吊下支持可能に構成してある。さらに、図1
(イ)に示すように、下方に設置される排ガス処理装置
1のガス流出口と接続するジョイント部23を底部に備
え、前記集塵機構Aの全体を覆うハウジング22を取り
付けてある。
Then, of the peripheral wall 5 of the apparatus main body 2,
A support mechanism comprising a bracket 20 protruding laterally above the support portion of the dust collecting mechanism A is provided. The bracket 20 is attached to, for example, a cross beam to rotatably support the dust collecting mechanism A. However, the apparatus main body 2 is configured to be able to be suspended and supported. Further, FIG.
As shown in (a), a joint part 23 connected to the gas outlet of the exhaust gas treatment device 1 installed below is provided at the bottom, and a housing 22 that covers the entire dust collecting mechanism A is attached.

【0019】以上の説明は、集塵機構Aを排ガス処理装
置1の一例であるバグフィルター55に採用したものを
説明したが、エコノマイザー54も同様の集塵機構Aを
備えて構成してある。上述したように、本発明に係る集
塵機構Aは、エネルギーの再利用や排ガスの浄化などを
目的とする、例えば、廃熱ボイラやエコノマイザなどと
いった排ガス処理装置に広く採用することが可能なもの
であり、このような構成により各種の排ガス処理装置を
コンパクトに縦積み配置可能に、かつ、下方から上方へ
の排ガスの自然な通流を可能に構成してある。
In the above description, the dust collecting mechanism A is employed in the bag filter 55 which is an example of the exhaust gas treatment apparatus 1. However, the economizer 54 is also provided with the same dust collecting mechanism A. As described above, the dust collecting mechanism A according to the present invention can be widely used in an exhaust gas treatment device such as a waste heat boiler or an economizer for the purpose of energy reuse and purification of exhaust gas. With such a configuration, various types of exhaust gas treatment devices can be compactly arranged vertically, and the natural flow of exhaust gas from below to above can be achieved.

【0020】前記排出機構Eについて詳述すると、前記
スクリュー式コンベア機構17は、下端部に二重ダンパ
機構(図示せず)を備えた縦管21に連結されており、
各集塵機構Aからの回収ダストは、前記縦管21を介し
て前記縦穴50の底部に設置された前記表面溶融炉53
に導かれ、焼却残渣とともに溶融処理される。
The discharge mechanism E will be described in detail. The screw type conveyor mechanism 17 is connected to a vertical pipe 21 having a double damper mechanism (not shown) at the lower end.
The collected dust from each dust collecting mechanism A is supplied to the surface melting furnace 53 installed at the bottom of the vertical hole 50 through the vertical pipe 21.
And melted together with the incineration residue.

【0021】上述の排ガス処理装置1では、装置本体2
の天井部にガス流出口4を設けたものを説明したが、ガ
ス流出口4の設置箇所は天井部に限定するものではない
が、天井部以外に設置すれば、上方の排ガス処理装置1
の底部に形成された排ガス流入口まで排ガスを導く接続
管を準備する必要があり、配管設置のために空間使用効
率が犠牲にされることになる。
In the above-described exhaust gas treatment apparatus 1, the apparatus main body 2
Although the gas outlet 4 is provided on the ceiling of the above, the installation location of the gas outlet 4 is not limited to the ceiling, but if the gas outlet 4 is installed other than the ceiling, the upper exhaust gas treatment device 1
It is necessary to prepare a connecting pipe for guiding the exhaust gas to the exhaust gas inlet formed at the bottom of the pipe, and the space use efficiency is sacrificed for installing the pipe.

【0022】〔別実施例〕 上述の集塵機構Aに代わり、図6に示すように、各
排ガス処理装置1の周壁5の内周部に連通路30を設
け、前記偏向板6aまたはガイド板6bにより回収され
たダストを前記連通路30に導く傾斜路31を、前記ガ
ス流入口7の周囲に設けて構成するものであってもよ
い。 バグフィルター55の第1別構造について説明す
る。バグフルター55の構造については図1に示すよう
に、基本的な構成については説明してあるので、ここで
は、図1で示した部分とは異なる点について主として説
明する。図7に示すように、濾布3を備えた装置本体2
をブラケット20を介して支持するとともに、装置本体
2の上部にガス流出口4を設けて上方のガス再加熱器5
6と上下相対移動可能に、略気密状態に接続して、排ガ
スを上方に排出するように構成してある。一方、エコノ
マイザー54からのガス流入口7と同様に上下相対移動
可能にかつ後記する水封機構25によって略気密に接続
してある。図1においては、環状溝8より環状堰9を立
設して周壁5との間に相対回転を許す間隙を設けている
が、図7においては、環状堰9を設けずに周壁5の下端
を環状溝8に極近接する位置まで設けている。周壁5の
下端にゴム板47を取付けそのゴム板47の下端を環状
溝8に摺接させて、シール構造を形成する構成を採って
もよい。そして、スクリュー式コンベア17に対応した
部位において周壁5の下端に導入口を設けるとともに環
状溝8内のダストを導入口に誘導するスクイーズ板10
を周壁5に固定して、環状溝8内の落下ダストをスクリ
ュー式コンベア17に導入するように構成する。周壁5
に対して相対回転する側壁13に対して環状溝8が一体
で回転するよう側壁13と環状壁8とが一体形成されて
おり、この環状溝8の下方に、環状溝8に近接配置され
るフランジ状部24Aとこのフランジ状部24Aを取り
付けた筒状部24Bからなる下フレーム24を配置し、
この下フレーム24にスクリュー式コンベア17を取付
固定してある。下フレーム24における筒状部24Bの
下端とエコノマイザー54からのガス流出口を形成する
筒状部の上端との間には、下フレーム24とエコノマイ
ザー54との相対上下動を許容する水封機構25を設け
てある。フランジ状部24Aの外縁と側壁13の下端と
の間には、両者の相対上下動及び相対回転を許す水封機
構を設けてある。 バグフィルター55の第2別構造について説明す
る。ここでは、図1及び図7で示す構造とは異なる点の
みについて説明する。図8に示すように、筒状の濾布3
を吊り下げ支持する周壁5をブラケット20で固定側に
支持するとともに、周壁5の下方に捕集ダストを排出す
るための回収機構Bを設けてある。エコノマイザー54
からの流入ガスを周壁5内に誘導する回動筒26の周面
に環状ギヤ部26Aを形成するとともに、環状ギヤ部2
6Aに噛み合う駆動ピンオン27をモータ28で駆動す
べく駆動機構Cを構成する。回動筒26はローラ29に
よって回転可能に支持されている。流入ガス内のダスト
を分流する偏向板6aは、回動筒26と一体で回転す
る。環状ギヤ部26Aには断面がチャンネル状で上向き
開放の環状溝32が形成されており、偏向板6aによっ
て排ガス中から分離される落下ダストを受け止める構造
になっている。周壁5の下端は環状溝32内に入り込む
位置まで延出されており、周壁5の下端と環状溝32と
の重なり部分に接触式のシール機構33を設けてある。
環状溝32に溜まったダストに対しては、吸引パイプ3
4を介して吸引用ブロワ(図外)により吸い出し排出す
る。吸引パイプ34及び吸引用ブロワ(図外)を排出機
構Eの吸引搬送機構と称する。
[Other Embodiment] Instead of the above-mentioned dust collecting mechanism A, as shown in FIG. 6, a communication path 30 is provided in the inner peripheral portion of the peripheral wall 5 of each exhaust gas treatment device 1, and the deflecting plate 6a or the guide plate 6b is provided. May be provided around the gas inlet 7 to form a slope 31 for guiding the dust collected by the above to the communication passage 30. A first alternative structure of the bag filter 55 will be described. As shown in FIG. 1, the basic configuration of the bag filter 55 has been described. Therefore, the differences from the portion shown in FIG. 1 will be mainly described here. As shown in FIG. 7, the device main body 2 provided with the filter cloth 3
Is supported via a bracket 20, and a gas outlet 4 is provided at an upper portion of the apparatus main body 2 so that an upper gas reheater 5 is provided.
6 is connected in a substantially airtight state so as to be movable up and down relative to each other so as to discharge exhaust gas upward. On the other hand, like the gas inlet 7 from the economizer 54, it is vertically movable relative to each other, and is substantially airtightly connected by a water seal mechanism 25 described later. In FIG. 1, an annular weir 9 is erected from the annular groove 8 to provide a gap between the peripheral weir and the peripheral wall 5. In FIG. 7, the lower end of the peripheral wall 5 is provided without the annular weir 9. Is provided to a position very close to the annular groove 8. A configuration may be adopted in which a rubber plate 47 is attached to the lower end of the peripheral wall 5 and the lower end of the rubber plate 47 is slid in contact with the annular groove 8 to form a seal structure. An inlet is provided at the lower end of the peripheral wall 5 at a position corresponding to the screw type conveyor 17 and the squeeze plate 10 for guiding dust in the annular groove 8 to the inlet is provided.
Is fixed to the peripheral wall 5 so that dust falling in the annular groove 8 is introduced into the screw type conveyor 17. Perimeter wall 5
The side wall 13 and the annular wall 8 are integrally formed so that the annular groove 8 rotates integrally with the side wall 13 which rotates relative to the annular groove 8, and is disposed below the annular groove 8 and close to the annular groove 8. A lower frame 24 composed of a flange portion 24A and a tubular portion 24B to which the flange portion 24A is attached is arranged.
The screw type conveyor 17 is attached and fixed to the lower frame 24. A water seal between the lower end of the cylindrical portion 24B of the lower frame 24 and the upper end of the cylindrical portion forming the gas outlet from the economizer 54, which allows relative vertical movement between the lower frame 24 and the economizer 54. A mechanism 25 is provided. A water seal mechanism is provided between the outer edge of the flange portion 24A and the lower end of the side wall 13 to allow relative vertical movement and relative rotation between the two. A second alternative structure of the bag filter 55 will be described. Here, only the points different from the structures shown in FIGS. 1 and 7 will be described. As shown in FIG.
Is supported on the fixed side by a bracket 20 and a collection mechanism B for discharging collected dust is provided below the peripheral wall 5. Economizer 54
An annular gear portion 26A is formed on the peripheral surface of the rotary cylinder 26 for guiding the inflow gas from the inside into the peripheral wall 5, and the annular gear portion 2 is formed.
The drive mechanism C is configured to drive the drive pin-on 27 meshing with 6A by the motor 28. The rotating cylinder 26 is rotatably supported by rollers 29. The deflecting plate 6 a that divides the dust in the inflowing gas rotates integrally with the rotating cylinder 26. An annular groove 32 having a channel-like cross section and opening upward is formed in the annular gear portion 26A, and has a structure for receiving falling dust separated from exhaust gas by the deflection plate 6a. The lower end of the peripheral wall 5 extends to a position where it enters into the annular groove 32, and a contact-type sealing mechanism 33 is provided at a portion where the lower end of the peripheral wall 5 and the annular groove 32 overlap.
For the dust accumulated in the annular groove 32, the suction pipe 3
4 and sucked and discharged by a suction blower (not shown). The suction pipe 34 and the suction blower (not shown) are referred to as a suction transport mechanism of the discharge mechanism E.

【0023】尚、上記特許請求の範囲の記載中、図面を
参照し、図面との対照を便利にするために符号を記す
が、該記入により本発明が添付図面の構成に限定される
ものではない。
In the description of the appended claims, reference is made to the drawings and, in order to facilitate comparison with the drawings, reference numerals are written. However, the description is not intended to limit the present invention to the configuration of the accompanying drawings. Absent.

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

【図1】本発明に係る集塵機構及び排ガス処理装置の説
明図
FIG. 1 is an explanatory view of a dust collecting mechanism and an exhaust gas treatment device according to the present invention.

【図2】要部の説明図FIG. 2 is an explanatory view of a main part.

【図3】都市ゴミ焼却システムの側面図Fig. 3 Side view of the municipal waste incineration system

【図4】都市ゴミ焼却システムの側面図Fig. 4 Side view of the municipal waste incineration system

【図5】都市ゴミ焼却システムの平面図FIG. 5 is a plan view of the municipal waste incineration system.

【図6】別実施形態を示す集塵機構の説明図FIG. 6 is an explanatory view of a dust collecting mechanism showing another embodiment.

【図7】バグフィルターの第1別構造を示す説明図FIG. 7 is an explanatory view showing a first alternative structure of the bag filter.

【図8】バグフィルターの第2別構造を示す説明図FIG. 8 is an explanatory view showing a second alternative structure of the bag filter.

【図9】従来の集塵機構及び排ガス処理装置の説明図FIG. 9 is an explanatory view of a conventional dust collecting mechanism and an exhaust gas treatment device.

【符号の説明】[Explanation of symbols]

2 装置本体 4 ガス流出口 6a 偏向板 6b ガイド板 7 ガス流入口 8 環状溝 B 回収機構 C 駆動機構 D スクイーズ機構 E 排出機構 2 Apparatus main body 4 Gas outlet 6a Deflector 6b Guide plate 7 Gas inlet 8 Annular groove B Recovery mechanism C Drive mechanism D Squeeze mechanism E Discharge mechanism

Claims (5)

【特許請求の範囲】[Claims] 【請求項1】 装置本体(2)の底部にガス流入口
(7)を設け、前記ガス流入口(7)の後段に、上方へ
向かうガス流を側方への速度成分を持たせるように偏向
する偏向板(6a)を設け、前記ガス流入口(7)の周
囲に、流入ガスに混入したダストを受け止める環状溝
(8)を設けるとともに、前記環状溝(8)に堆積した
ダストを回収する回収機構(B)とを備えてなる集塵機
構。
1. A gas inlet (7) is provided at the bottom of an apparatus main body (2) so that an upward gas flow has a lateral velocity component at a stage subsequent to the gas inlet (7). A deflecting plate (6a) is provided. An annular groove (8) is provided around the gas inlet (7) for receiving dust mixed in the inflow gas, and dust accumulated in the annular groove (8) is collected. And a collection mechanism (B) that performs the collection.
【請求項2】 前記回収機構(B)は、前記環状溝
(8)を回動させる駆動機構(C)と、前記環状溝
(8)の回動に伴い前記環状溝(8)に堆積したダスト
を掻き集めるスクイーズ機構(D)と、掻き集められた
ダストを前記環状溝(8)から排出する排出機構(E)
とで構成してなる請求項1記載の集塵機構。
2. The collecting mechanism (B) includes a driving mechanism (C) for rotating the annular groove (8), and the collecting mechanism (B) is deposited on the annular groove (8) with the rotation of the annular groove (8). A squeeze mechanism (D) for collecting dust and a discharging mechanism (E) for discharging the collected dust from the annular groove (8).
2. The dust collecting mechanism according to claim 1, wherein the dust collecting mechanism comprises:
【請求項3】 前記偏向板(6a)の上方を流れるガス
流から落下するダストを前記環状溝(8)に導くガイド
板(6b)を設けてなる請求項1または2記載の集塵機
構。
3. The dust collecting mechanism according to claim 1, further comprising a guide plate (6b) for guiding dust falling from a gas flow flowing above the deflection plate (6a) to the annular groove (8).
【請求項4】 請求項1から3のいずれかに記載の集塵
機構を備えた装置本体(2)の天井部にガス流出口
(4)を設けてなる排ガス処理装置。
4. An exhaust gas treatment device comprising a gas outlet (4) provided on a ceiling of an apparatus body (2) provided with the dust collecting mechanism according to claim 1.
【請求項5】 前記集塵機構を備え、その集塵機構より
上方で装置本体(2)を吊下支持する支持機構を備えて
なる請求項4記載の排ガス処理装置。
5. The exhaust gas treatment apparatus according to claim 4, further comprising a support mechanism that includes the dust collection mechanism and that suspends and supports the apparatus body (2) above the dust collection mechanism.
JP24532898A 1997-09-18 1998-08-31 Dust collection mechanism and exhaust gas treatment device Expired - Fee Related JP3540948B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24532898A JP3540948B2 (en) 1997-09-18 1998-08-31 Dust collection mechanism and exhaust gas treatment device

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP9-252993 1997-09-18
JP25299397 1997-09-18
JP24532898A JP3540948B2 (en) 1997-09-18 1998-08-31 Dust collection mechanism and exhaust gas treatment device

Publications (2)

Publication Number Publication Date
JPH11309319A true JPH11309319A (en) 1999-11-09
JP3540948B2 JP3540948B2 (en) 2004-07-07

Family

ID=26537183

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24532898A Expired - Fee Related JP3540948B2 (en) 1997-09-18 1998-08-31 Dust collection mechanism and exhaust gas treatment device

Country Status (1)

Country Link
JP (1) JP3540948B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100490646B1 (en) * 2002-12-11 2005-05-19 학교법인 인하학원 Dust collector using inertial force
KR100751026B1 (en) * 2001-07-11 2007-08-21 주식회사 포스코 A dust collector having a filtering chamber
KR101086728B1 (en) 2011-06-16 2011-11-24 (주)유성엔비텍 An air filter with equipment of offensive odor treatment and washing type dust collector equipment
CN105749629A (en) * 2016-04-29 2016-07-13 王储 Umbrella type smoke eliminating dust remover
JP2018132279A (en) * 2017-02-17 2018-08-23 三菱日立パワーシステムズ株式会社 Waste heat recovery boiler and scattering matter recovery method therefor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100751026B1 (en) * 2001-07-11 2007-08-21 주식회사 포스코 A dust collector having a filtering chamber
KR100490646B1 (en) * 2002-12-11 2005-05-19 학교법인 인하학원 Dust collector using inertial force
KR101086728B1 (en) 2011-06-16 2011-11-24 (주)유성엔비텍 An air filter with equipment of offensive odor treatment and washing type dust collector equipment
CN105749629A (en) * 2016-04-29 2016-07-13 王储 Umbrella type smoke eliminating dust remover
JP2018132279A (en) * 2017-02-17 2018-08-23 三菱日立パワーシステムズ株式会社 Waste heat recovery boiler and scattering matter recovery method therefor

Also Published As

Publication number Publication date
JP3540948B2 (en) 2004-07-07

Similar Documents

Publication Publication Date Title
US3917458A (en) Gas filtration system employing a filtration screen of particulate solids
KR20110045676A (en) Wet scrubber system using a centrifugal force
CN210522259U (en) Flue gas denitration device for waste incinerator
CN216855900U (en) Solid-liquid separation device for municipal sewage treatment
JP3540948B2 (en) Dust collection mechanism and exhaust gas treatment device
CN215233248U (en) A desulphurization unit for msw incineration stove flue gas
CN212188442U (en) Be used for hierarchical formula dust collector of industrial flue gas
CN113289428A (en) Environment-friendly boiler flue gas purification treatment device
KR20170060667A (en) Dust collector
CN216457760U (en) Coke oven flue gas desulfurization and denitrification device
CN216986781U (en) Dust collector for PNCR denitration device
CN1745875A (en) Assembling device of double-stage wetting dust-proof desulfurizer
CN212005693U (en) Waste incineration device for environmental protection
CN214130920U (en) Compound industrial waste gas treatment purifier
CN209706074U (en) A kind of refuse burning system using vertical incinerator
CN217093649U (en) Industrial solid waste harmless treatment system
JPH05253433A (en) Wet dust collector
JPH10328531A (en) Filtration type dust collector
CN203002143U (en) Novel inclined grid type dust collection tube
KR102499692B1 (en) Multi-Purifying Filter Apparatus Using Filtration Typed
JP4026016B2 (en) Exhaust gas scale capture device
CN215062085U (en) Refuse treatment plasma treatment equipment of refuse treatment plant
CN220793162U (en) Ash conveying device at bottom of two channels of waste heat boiler
RU2198296C2 (en) Device for dedusting of intramine ventilation air flows
CN209378642U (en) A kind of industrial dedusting device

Legal Events

Date Code Title Description
TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20040311

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20040326

R150 Certificate of patent (=grant) or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

LAPS Cancellation because of no payment of annual fees