JP2008132424A - Exhaust gas-treating device and operating method of waste treatment facility equipped with the same - Google Patents

Exhaust gas-treating device and operating method of waste treatment facility equipped with the same Download PDF

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JP2008132424A
JP2008132424A JP2006320102A JP2006320102A JP2008132424A JP 2008132424 A JP2008132424 A JP 2008132424A JP 2006320102 A JP2006320102 A JP 2006320102A JP 2006320102 A JP2006320102 A JP 2006320102A JP 2008132424 A JP2008132424 A JP 2008132424A
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exhaust gas
bag filter
stage bag
stage
opening
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Masato Fujita
理人 藤田
Makoto Yamamoto
山本　　誠
Tomotada Kawamura
知格 川村
Makoto Otake
信 大竹
Toshimasa Suzuki
敏正 鈴木
Seigo Ando
清吾 安藤
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Mitsui Engineering and Shipbuilding Co Ltd
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  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide an exhaust gas-treating device which causes no clogging due to the wetting of a neutralizing agent even when a waste incinerator is started up and shutdown. <P>SOLUTION: The exhaust gas-treating device is provided with: a prior-stage bag filter 1 which collects dust in an exhaust gas; and a posterior-stage bag filter 2 which makes an acidic gas in the exhaust gas, which passes through the prior-stage bag filter 1, react with a neutralizing agent to perform desalination and desulfurization and collects the dust; the bag filter 1 and the bag filter 2 being integrally connected with each other via an exhaust gas passage 3. In this case, a partition 4, which blocks the outlet part 8 of the prior-stage bag filter 1 and the outlet part 9 of the posterior-stage bag filter 2, is provided with an opening/closing means 20, and consequently the exhaust gas, which passes through the prior-stage bag filter 1, bypasses the posterior-stage bag filter 2. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は排ガスの処理装置に関し、特に廃棄物処理施設における排ガス中の有害物質を除去するための連続運転可能な排ガス処理装置、及び廃棄物処理施設の運転方法に関する。   The present invention relates to an exhaust gas treatment apparatus, and more particularly to an exhaust gas treatment apparatus capable of continuous operation for removing harmful substances in exhaust gas in a waste treatment facility, and a method for operating the waste treatment facility.

従来より、廃棄物焼却炉から排出される排ガス中に含まれる煤塵を前段のバグフィルタで集塵して、その後の排ガスに含まれる塩化水素、硫化水素などの酸性ガスを、消石灰や重曹などのアルカリ薬剤（以下、単に「中和剤」という。）との反応により脱塩及び脱硫した後に、その残渣を後段のバグフィルタで集塵するという２段式バグフィルタ構造の排ガス処理装置が知られている。   Conventionally, dust contained in exhaust gas discharged from a waste incinerator is collected with a bag filter in the previous stage, and acid gases such as hydrogen chloride and hydrogen sulfide contained in the subsequent exhaust gas are collected with slaked lime, sodium bicarbonate, etc. There is known an exhaust gas treatment apparatus having a two-stage bag filter structure in which after desalting and desulfurization by reaction with an alkaline agent (hereinafter simply referred to as “neutralizing agent”), the residue is collected by a subsequent bag filter. ing.

しかし、このような排ガス処理装置においては、同様なバグフィルタを２台配列して煙道で接続する必要があるため、広い設置面積が必要となるとともに太い配管を引き回さなくてはならないので装置が全体として複雑化し、それに対応して設備費が増加するという欠点があった。   However, in such an exhaust gas treatment device, it is necessary to arrange two similar bag filters and connect them with a flue, so that a large installation area is required and a thick pipe must be routed. The apparatus is complicated as a whole, and there is a drawback that the equipment cost increases correspondingly.

そのため、設置面積の低減を目的として、２台のバグフィルタを直列に配列し、前段バグフィルタより排気される排ガスの排気経路と、後段バグフィルタの排ガスの給気経路を共通化することで、２台のバグフィルタを一体化した排ガス処理装置が提案されている（例えば、特許文献１及び２を参照）。   Therefore, for the purpose of reducing the installation area, two bag filters are arranged in series, and the exhaust gas exhaust path exhausted from the front stage bag filter and the exhaust gas supply path of the rear stage bag filter are shared, An exhaust gas treatment apparatus in which two bag filters are integrated has been proposed (see, for example, Patent Documents 1 and 2).

この排ガス処理装置は、例えば図４に示すように、前段バグフィルタ５０と後段バグフィルタ５１を、屈曲排ガス管路５２を介して一体化するとともに、屈曲排ガス管路５２に中和剤供給手段５３を連通連結した構造を有している。前段バグフィルタ５０と後段バグフィルタ５１の内部には、主にガラス繊維からなるろ布５４が多数設置されている。   For example, as shown in FIG. 4, this exhaust gas treatment apparatus integrates a front-stage bag filter 50 and a rear-stage bag filter 51 via a bent exhaust gas pipe 52 and also supplies a neutralizing agent supply means 53 to the bent exhaust gas pipe 52. Are connected in communication. A large number of filter cloths 54 mainly made of glass fibers are installed inside the front-stage bag filter 50 and the rear-stage bag filter 51.

ところで、廃棄物焼却炉から排出される排ガスは、排ガス処理装置の上流側に設置された減温塔において、ダイオキシンの再生成を抑制するために、水を噴霧することにより冷却されるようになっている。従って、排ガス処理装置に流入する排ガスには多量の水分が含まれることになる。このことにより、煤塵の集塵を目的とする前段バグフィルタ５０が影響を受けることはないが、後段バグフィルタ５１においては、その水分をろ布５４表面上に堆積している中和剤が過剰に吸収するとろ布５４に目詰まりが発生するおそれがある。この目詰まりは、乾燥しても完全に回復することはなく、繰り返し目詰まりが発生するとろ布５４の圧損が上昇して、廃棄物焼却炉が運転不能となってしまう。   By the way, the exhaust gas discharged from the waste incinerator is cooled by spraying water in order to suppress the regeneration of dioxins in the temperature reducing tower installed upstream of the exhaust gas treatment device. ing. Therefore, a large amount of water is contained in the exhaust gas flowing into the exhaust gas treatment device. As a result, the pre-stage bag filter 50 for collecting dust is not affected, but the post-stage bag filter 51 has an excessive amount of neutralizing agent accumulated on the filter cloth 54 surface. If absorbed into the filter cloth 54, the filter cloth 54 may be clogged. This clogging does not completely recover even after drying, and when clogging occurs repeatedly, the pressure loss of the filter cloth 54 increases, and the waste incinerator becomes inoperable.

ここで、廃棄物焼却炉の通常運転時においては、冷却後の排ガス温度は約１７０〜２００℃と高温であるとともに、中和剤供給手段５３から中和剤が絶えず吹き込まれる。そのため、中和剤が排ガス中の水分を吸収しても、湿潤状態になる前にパルスによってろ布５４から払い落とされて後段バグフィルタ５１から排出されるので、後段バグフィルタ５１のろ布５４が目詰まりする可能性は極めて低い。   Here, during normal operation of the waste incinerator, the exhaust gas temperature after cooling is as high as about 170 to 200 ° C., and the neutralizing agent is constantly blown from the neutralizing agent supply means 53. Therefore, even if the neutralizing agent absorbs moisture in the exhaust gas, it is wiped off from the filter cloth 54 by a pulse and discharged from the rear-stage bag filter 51 before becoming wet, so that the filter cloth 54 of the rear-stage bag filter 51 is discharged. Is very unlikely to be clogged.

しかし、廃棄物焼却炉の立ち上げ及び立ち下げ時においては、廃棄物焼却炉から排出される排ガス中の酸性ガス濃度が低いため、新たに中和剤は吹き込まれることはない。そのため、排ガス中の水分は、パルスによって払い落とされなかったろ布５４表面の中和剤に選択的に吸収され、中和剤は過剰に水分を吸収した湿潤状態となって、後段バグフィルタ５１のろ布５４を目詰まりさせることが明らかになっている。
特開平１０−２０２０５２号公報（図２） 特開２００１−１７８３３号公報（図２） However, when the waste incinerator is started up and shut down, the neutralizing agent is not blown in again because the acid gas concentration in the exhaust gas discharged from the waste incinerator is low. Therefore, the moisture in the exhaust gas is selectively absorbed by the neutralizing agent on the surface of the filter cloth 54 that has not been wiped off by the pulse, and the neutralizing agent is in a wet state where moisture is absorbed excessively. It has been found that the filter cloth 54 is clogged.
Japanese Patent Laid-Open No. 10-202052 (FIG. 2) Japanese Patent Laid-Open No. 2001-17833 (FIG. 2)

本発明の目的は、廃棄物焼却炉の立ち上げ及び立ち下げ時においても、中和剤の湿潤によりろ布の目詰まりが発生しない排ガス処理装置を提供することにある。   An object of the present invention is to provide an exhaust gas treatment apparatus that does not cause clogging of a filter cloth due to wetness of a neutralizing agent even when a waste incinerator is started up and shut down.

上記の目的を達成するため、本発明は、排ガス中の煤塵を集塵する前段バグフィルタと、前記前段バグフィルタを通過した排ガス中の酸性ガスを中和剤との反応により脱塩及び脱硫して集塵する後段バグフィルタとを排ガス通路を介して一体的に接続してなる排ガス処理装置において、前段バグフィルタの出口と後段バグフィルタの出口とを遮る隔壁に開閉手段を設けて、前段バグフィルタを通過した排ガスが後段バグフィルタをバイパスできるようにしたことを特徴とする。   In order to achieve the above-mentioned object, the present invention demineralizes and desulfurizes a front-stage bag filter that collects dust in exhaust gas, and an acid gas in the exhaust gas that has passed through the previous-stage bag filter by a reaction with a neutralizing agent. In the exhaust gas treatment device, which is integrally connected to the rear-stage bag filter that collects dust through the exhaust gas passage, an opening / closing means is provided on the partition wall that blocks the outlet of the front-stage bag filter and the outlet of the rear-stage bag filter. The exhaust gas that has passed through the filter can bypass the rear-stage bag filter.

この開閉手段は、隔壁の水平方向の両端部近傍にそれぞれ設けることが望ましい。また、隔壁に対する開閉手段の開閉部分の面積割合は、３０〜５０％となることが好ましい。更に、それらの開閉手段として、ゲート弁を用いることができる。   The opening / closing means is preferably provided in the vicinity of both ends of the partition wall in the horizontal direction. Moreover, it is preferable that the area ratio of the opening / closing part of the opening / closing means with respect to the partition wall is 30 to 50%. Further, a gate valve can be used as the opening / closing means.

また、本発明は、上記の排ガス処理装置を備えた廃棄物処理施設において、定常運転時には前記開閉手段を閉状態とし、非定常運転時である廃棄物焼却炉の立ち上げ及び立ち下げ時には前記開閉手段を開状態とすることを特徴とする廃棄物処理施設の運転方法である。   Further, the present invention provides a waste treatment facility equipped with the above-described exhaust gas treatment apparatus, wherein the opening / closing means is closed during steady operation, and the open / close operation is performed during startup and shutdown of the waste incinerator during non-steady operation. A method for operating a waste treatment facility, characterized in that the means is opened.

ここで、定常運転時とは、廃棄物焼却炉において所定の温度で廃棄物が連続的に焼却されている状態をいう。廃棄物焼却炉の立ち上げとは、廃棄物の燃焼を開始する準備として、灯油バーナー等により炉内の温度を所定の値まで昇温することをいう。廃棄物焼却炉の立ち下げとは、廃棄物の燃焼が終了した後に炉内の温度を室温まで降温することをいう。   Here, the time of steady operation means a state in which waste is continuously incinerated at a predetermined temperature in the waste incinerator. Starting up the waste incinerator means that the temperature in the furnace is raised to a predetermined value by a kerosene burner or the like as preparation for starting combustion of the waste. The shutdown of the waste incinerator means that the temperature in the furnace is lowered to room temperature after the combustion of the waste is completed.

本発明によれば、排ガス中の煤塵を集塵する前段バグフィルタと、前段バグフィルタを通過した排ガス中の酸性ガスを中和剤との反応により脱塩及び脱硫して集塵する後段バグフィルタとを排ガス通路を介して一体的に構成してなる排ガス処理装置において、前段バグフィルタの出口と後段バグフィルタの出口とを遮る隔壁に開閉手段を設けて、前段バグフィルタを通過した排ガスが前記後段バグフィルタをバイパスできるようにしたため、廃棄物焼却炉の立ち上げ及び立ち下げ時においても、中和剤の湿潤によりろ布の目詰まりが発生しない排ガス処理装置を提供することができる。   According to the present invention, a front-stage bag filter that collects dust in exhaust gas and a rear-stage bag filter that collects dust by demineralizing and desulfurizing acid gas in exhaust gas that has passed through the front-stage bag filter by reaction with a neutralizing agent. In the exhaust gas treatment apparatus that is configured integrally through the exhaust gas passage, an opening / closing means is provided in the partition wall that blocks the outlet of the front bag filter and the outlet of the rear bag filter, and the exhaust gas that has passed through the front bag filter Since the latter-stage bag filter can be bypassed, an exhaust gas treatment apparatus that does not cause clogging of the filter cloth due to the wetness of the neutralizing agent even when the waste incinerator is started up and shut down can be provided.

以下に、本発明の実施の形態について、図面を参照して説明する。
図１に本発明の実施形態からなる排ガス浄化装置を示す。 Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 shows an exhaust gas purifying apparatus according to an embodiment of the present invention.

この排ガス浄化装置は、排ガス中の煤塵を集塵する前段バグフィルタ１と、その前段バグフィルタ１を通過した排ガス中の酸性ガスを中和剤との反応により脱塩及び脱硫して集塵する後段バグフィルタ２とを一体的に構成したものである。前段バグフィルタ１と後段バグフィルタ２は、後段バグフィルタ２内部に設けられた排ガス通路３により接続されている。この排ガス通路３は、前段バグフィルタ１と後段バグフィルタ１を仕切る隔壁４と、前段バグフィルタ１の後壁５とから形成されており、排ガスの流れる方向に対して偏平な函形の形状となっている。排ガス通路３の上端には、中和剤供給管６が設けられており、排ガス通路３内を流れる排ガスに消石灰や重曹などからなる中和剤を吹き込むようになっている。   This exhaust gas purifying apparatus collects dust by demineralizing and desulfurizing the front-stage bag filter 1 that collects dust in the exhaust gas and the acid gas in the exhaust gas that has passed through the previous-stage bag filter 1 by reaction with a neutralizing agent. The post-stage bag filter 2 is integrally configured. The front-stage bag filter 1 and the rear-stage bag filter 2 are connected by an exhaust gas passage 3 provided in the rear-stage bag filter 2. The exhaust gas passage 3 is formed by a partition wall 4 that partitions the front-stage bag filter 1 and the rear-stage bag filter 1 and a rear wall 5 of the front-stage bag filter 1, and has a flat box shape that is flat with respect to the flow direction of the exhaust gas. It has become. A neutralizer supply pipe 6 is provided at the upper end of the exhaust gas passage 3, and a neutralizer made of slaked lime, sodium bicarbonate, or the like is blown into the exhaust gas flowing in the exhaust gas passage 3.

前段バグフィルタ１と後段バグフィルタ２の内部はほぼ同じ構造となっており、上部のクリーンルーム（８、９）、舟底型の下部空間部（１０、１１）及びそれらの間に位置し主にガラス繊維からなる複数の円筒形状のろ布（１２、１３）から構成される。   The interiors of the front-stage bag filter 1 and the rear-stage bag filter 2 have substantially the same structure, and are mainly located between the upper clean room (8, 9), the boat bottom-type lower space (10, 11), and between them. It is composed of a plurality of cylindrical filter cloths (12, 13) made of glass fiber.

後段バグフィルタ２のクリーンルーム９に対向する隔壁上部４ａには、開閉手段であるスライド式のゲート弁２０が設置されている。このゲート弁２０は、図２に示すように、隔壁上部４ａに形成された開口部２１に弁板２２が相当するように設置され、駆動機構２３により回転軸２４を通じて弁板２２を弁箱２５内でスライドさせて開口部２１を開閉するものである。ゲート弁２０は、省スペースの観点から隔壁上部４ａの水平方向の両端部にそれぞれ設置するのが望ましく、また開口部２１の合計の大きさは、隔壁上部４ａに対して面積比で３０〜５０％とすることが好ましい。この面積比が３０％より小さいと排ガスがゲート弁を通過する際の圧損が大きくなって開口部２１を排ガスが通過しにくくなり、５０％より大きいと隔壁上部４ａの強度が低下してしまう。   A sliding gate valve 20 as an opening / closing means is installed in the upper part 4 a of the partition wall facing the clean room 9 of the rear stage bag filter 2. As shown in FIG. 2, the gate valve 20 is installed so that the valve plate 22 corresponds to the opening 21 formed in the partition upper portion 4 a, and the valve plate 22 is moved through the rotating shaft 24 by the drive mechanism 23 to the valve box 25. The opening 21 is opened and closed by sliding inside. The gate valves 20 are preferably installed at both ends in the horizontal direction of the partition upper portion 4a from the viewpoint of space saving, and the total size of the openings 21 is 30 to 50 in terms of area with respect to the partition upper portion 4a. % Is preferable. If this area ratio is less than 30%, the pressure loss when the exhaust gas passes through the gate valve becomes large, and the exhaust gas does not easily pass through the opening 21, and if it exceeds 50%, the strength of the partition upper part 4a is lowered.

なお、図２においては、弁板２２が水平方向にスライドする場合を例示しているが、垂直方向にスライドするようにしてもよい。   2 illustrates the case where the valve plate 22 slides in the horizontal direction, it may slide in the vertical direction.

このような構造をとることにより、廃棄物焼却炉の立ち上げ及び立ち下げ時に排出される排ガスに後段バグフィルタ２をバイパスさせることができるため、後段バグフィルタ２のろ布１３の目詰まりを防ぐことができる。   By adopting such a structure, the back-stage bag filter 2 can be bypassed by the exhaust gas discharged when the waste incinerator is started up and shut down, so that the filter cloth 13 of the back-stage bag filter 2 is prevented from being clogged. be able to.

本発明に係る排ガス処理装置の運転方法を、図３に基づいて以下に説明する。なお、図３においては、排ガスの流れを点線で示している。   An operation method of the exhaust gas treatment apparatus according to the present invention will be described below with reference to FIG. In addition, in FIG. 3, the flow of exhaust gas is shown with the dotted line.

廃棄物焼却炉において所定の温度で廃棄物が連続的に焼却されている状態である廃棄物焼却施設の定常運転時には、排ガス処理装置のゲート弁２０を閉じる。従って、入口ダクト１４から入り前段バグフィルタ１のろ布１２により煤塵が集塵されてクリーンルーム８へ流入した排ガスは、図３（ａ）に示すように、排ガス通路３を通って後段バグフィルタ２の下部空間１１へ向かって流れることになる。この排ガス通路３の通過時において、中和剤供給管６から吹き込まれる粉末状の中和剤により排ガス中の酸化ガスが脱硫・脱塩されて残渣となるため、後段バグフィルタ２のろ布１３により集塵される。このようにして浄化処理された排ガスは、出口ダクト１５から排出され、図示しない排気筒から外部環境へ放出される。   During the steady operation of the waste incineration facility in which the waste is continuously incinerated at a predetermined temperature in the waste incinerator, the gate valve 20 of the exhaust gas treatment device is closed. Accordingly, the exhaust gas that has entered the entrance duct 14 and collected dust by the filter cloth 12 of the front-stage bag filter 1 and has flowed into the clean room 8 passes through the exhaust gas passage 3 and passes through the rear-stage bag filter 2 as shown in FIG. Will flow toward the lower space 11. When passing through the exhaust gas passage 3, the oxidizing gas in the exhaust gas is desulfurized and desalted by the powdered neutralizing agent blown from the neutralizing agent supply pipe 6 to form a residue. To collect dust. The exhaust gas thus purified is discharged from the outlet duct 15 and discharged from an exhaust pipe (not shown) to the external environment.

そして、廃棄物焼却炉の立ち上げ及び立ち下げ時である廃棄物処理施設の非定常運転時においては、排ガス処理装置のゲート弁２０を開く。そのため、前段バグフィルタ１のろ布１２により煤塵が集塵されてクリーンルーム８へ流入した排ガスは、図３（ｂ）に示すように、開口部２１を通って後段バグフィルタ２のクリーンルーム８へ直接流れ込み、出口ダクト１５から排出されることになる。このとき、後段バグフィルタ２のろ布１３による圧損は、開口部２１における圧損に比べてはるかに大きいため、排ガスの大部分は開口部２１を通過し、排ガス通路３へ流れる排ガスは少量になる。   Then, when the waste incinerator is started up and shut down, the gate valve 20 of the exhaust gas treatment apparatus is opened during the unsteady operation of the waste treatment facility. Therefore, the exhaust gas that has collected soot by the filter cloth 12 of the front-stage bag filter 1 and flows into the clean room 8 passes directly through the opening 21 to the clean room 8 of the rear-stage bag filter 2 as shown in FIG. It flows in and is discharged from the outlet duct 15. At this time, the pressure loss due to the filter cloth 13 of the rear-stage bag filter 2 is much larger than the pressure loss at the opening 21, so that most of the exhaust gas passes through the opening 21 and the amount of exhaust gas flowing into the exhaust gas passage 3 is small. .

以上のような運転方法をとることにより、廃棄物焼却炉の立ち上げ及び立ち下げ時において、排ガスが後段バグフィルタに流入することを防ぐことができるため、中和剤の湿潤によりろ布が目詰まりして圧損が上昇し、廃棄物焼却炉が運転不能となることを防止することができる。   By adopting the above operation method, it is possible to prevent the exhaust gas from flowing into the post-stage bag filter when starting up and shutting down the waste incinerator. It can be prevented that the pressure loss increases due to clogging and the waste incinerator becomes inoperable.

本発明の実施形態からなる排ガス処理装置である。1 is an exhaust gas treatment apparatus according to an embodiment of the present invention. 排ガスの下流側から見た隔壁の正面図である。It is a front view of the partition seen from the downstream of exhaust gas. 本発明の実施形態からなる排ガス処理装置における排ガス流の説明図である。It is explanatory drawing of the waste gas flow in the waste gas processing apparatus which consists of embodiment of this invention. 従来の排ガス処理装置である。It is a conventional exhaust gas treatment device.

符号の説明Explanation of symbols

１ 前段バグフィルタ
２ 後段バグフィルタ
３ 排ガス通路
４ 隔壁
４ａ 隔壁上部
５ 後壁
６ 中和剤供給管
８ 前段バグフィルタのクリーンルーム
９ 後段バグフィルタのクリーンルーム
１０ 前段バグフィルタの下部空間
１１ 後段バグフィルタの下部空間
１２ 前段バグフィルタのろ布
１３ 後段バグフィルタのろ布
１４ 入口ダクト
１５ 出口ダクト
２０ ゲート弁
２１ 開口部
２２ 弁板
２３ 駆動機構
２４ 回転軸
２５ 弁箱
５０ 前段バグフィルタ
５１ 後段バグフィルタ
５２ 屈曲排ガス管
５３ 中和剤供給手段
５４ ろ布 DESCRIPTION OF SYMBOLS 1 Front-stage bag filter 2 Rear-stage bag filter 3 Exhaust gas passage 4 Bulkhead 4a Bulkhead upper part 5 Rear wall 6 Neutralizing agent supply pipe 8 Cleanroom 9 of front-stage bag filter 10 Clean room of rear-stage bag filter 10 Space 12 Filter cloth 13 of the front stage bag filter 14 Filter cloth 14 of the rear stage bag filter 14 Inlet duct 15 Outlet duct 20 Gate valve 21 Opening 22 Valve plate 23 Drive mechanism 24 Rotating shaft 25 Valve box 50 Previous stage bag filter 51 Rear stage bag filter 52 Bending exhaust gas Tube 53 Neutralizing agent supply means 54 Filter cloth

Claims (5)

排ガス中の煤塵を集塵する前段バグフィルタと、前記前段バグフィルタを通過した排ガス中の酸性ガスを中和剤との反応により脱塩及び脱硫して集塵する後段バグフィルタと、を排ガス通路を介して一体的に接続してなる排ガス処理装置において、
前記前段バグフィルタの出口部と前記後段バグフィルタの出口部とを遮る隔壁に開閉手段を設けて、前記前段バグフィルタを通過した排ガスが前記後段バグフィルタをバイパスできるようにした排ガス処理装置。 A front-stage bag filter that collects dust in the exhaust gas, and a rear-stage bag filter that collects dust by demineralizing and desulfurizing the acid gas in the exhaust gas that has passed through the front-stage bag filter by reaction with a neutralizing agent. In the exhaust gas treatment apparatus that is integrally connected via
An exhaust gas treatment apparatus, wherein an opening / closing means is provided in a partition wall that blocks an outlet portion of the front-stage bag filter and an outlet portion of the rear-stage bag filter so that the exhaust gas that has passed through the front-stage bag filter can bypass the rear-stage bag filter. 前記開閉手段を、前記隔壁の水平方向の両端部にそれぞれ設けた請求項１に記載の排ガス処理装置。   The exhaust gas treatment apparatus according to claim 1, wherein the opening / closing means is provided at both ends in the horizontal direction of the partition wall. 前記隔壁に対する前記開閉手段の開閉部分の面積割合が、３０〜５０％である請求項１又は２に記載の排ガス処理装置。   The exhaust gas treatment apparatus according to claim 1 or 2, wherein an area ratio of an opening / closing portion of the opening / closing means to the partition wall is 30 to 50%. 前記開閉手段が、ゲート弁である請求項１、２又は３に記載の排ガス処理装置。   The exhaust gas treatment apparatus according to claim 1, wherein the opening / closing means is a gate valve. 請求項１、２、３又は４に記載の排ガス処理装置を備えた廃棄物処理施設において、定常運転時には前記開閉手段を閉状態とし、非定常運転時である廃棄物焼却炉の立ち上げ及び立ち下げ時には前記開閉手段を開状態とする廃棄物処理施設の運転方法。   5. A waste treatment facility equipped with the exhaust gas treatment apparatus according to claim 1, wherein the open / close means is closed during steady operation, and the waste incinerator is started and started during non-steady operation. A method for operating a waste treatment facility in which the opening / closing means is opened when lowered.
JP2006320102A 2006-11-28 2006-11-28 Exhaust gas-treating device and operating method of waste treatment facility equipped with the same Pending JP2008132424A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160051015A (en) * 2014-10-31 2016-05-11 창원대학교 산학협력단 Dust Collector Apparatus

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JPH0679118A (en) * 1992-09-02 1994-03-22 Kubota Corp Bag filter for incinerator
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JPH09173742A (en) * 1995-10-24 1997-07-08 Hitachi Zosen Corp Two-stage dust collection equipment and dust removing method of exhaust gas with two-stage dust collection equipment
JPH11128679A (en) * 1997-10-31 1999-05-18 Plantec:Kk Device for reducing dioxines of discontinuous combustion refuse incineration plant and reducing method therefor
JP2001017833A (en) * 1999-07-08 2001-01-23 Kawasaki Heavy Ind Ltd Method and device for dry treatment of exhaust gas
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JPH0679118A (en) * 1992-09-02 1994-03-22 Kubota Corp Bag filter for incinerator
JPH07213838A (en) * 1994-02-10 1995-08-15 Mitsubishi Heavy Ind Ltd Device for protecting bag filter of waste gas treating device
JPH09173742A (en) * 1995-10-24 1997-07-08 Hitachi Zosen Corp Two-stage dust collection equipment and dust removing method of exhaust gas with two-stage dust collection equipment
JPH11128679A (en) * 1997-10-31 1999-05-18 Plantec:Kk Device for reducing dioxines of discontinuous combustion refuse incineration plant and reducing method therefor
JP2001017833A (en) * 1999-07-08 2001-01-23 Kawasaki Heavy Ind Ltd Method and device for dry treatment of exhaust gas
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160051015A (en) * 2014-10-31 2016-05-11 창원대학교 산학협력단 Dust Collector Apparatus
KR101639010B1 (en) 2014-10-31 2016-07-12 창원대학교 산학협력단 Dust Collector Apparatus

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