JPH0724253A - Waste gas treating apparatus - Google Patents
Waste gas treating apparatusInfo
- Publication number
- JPH0724253A JPH0724253A JP5176664A JP17666493A JPH0724253A JP H0724253 A JPH0724253 A JP H0724253A JP 5176664 A JP5176664 A JP 5176664A JP 17666493 A JP17666493 A JP 17666493A JP H0724253 A JPH0724253 A JP H0724253A
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- reaction product
- spray nozzle
- spray
- gas treatment
- 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
Links
- 239000002912 waste gas Substances 0.000 title abstract 4
- 239000007789 gas Substances 0.000 claims abstract description 91
- 239000007795 chemical reaction product Substances 0.000 claims abstract description 53
- 239000007921 spray Substances 0.000 claims abstract description 52
- 230000002745 absorbent Effects 0.000 claims abstract description 16
- 239000002250 absorbent Substances 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims description 29
- 239000000428 dust Substances 0.000 claims description 13
- 238000005507 spraying Methods 0.000 claims description 12
- 239000002341 toxic gas Substances 0.000 claims description 6
- 239000004020 conductor Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 239000002002 slurry Substances 0.000 abstract description 5
- 239000000843 powder Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 12
- 238000006243 chemical reaction Methods 0.000 description 7
- 239000012717 electrostatic precipitator Substances 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 239000010881 fly ash Substances 0.000 description 3
- 238000001035 drying Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000004071 soot Substances 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は排ガス中のSOX などの有
害ガスを除去する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 an exhaust gas treatment apparatus for removing harmful gases such as SO X in exhaust gas.
【０００２】[0002]
【従来の技術】従来の排ガス処理装置は、図７に示すよ
うに除塵後、排ガスを完全飽和迄増湿冷却し、吸収液と
の気液反応にて有害ガスを除去するようにした湿式法に
基づく装置や、また、図８に示すように、排ガス中に吸
収液をスプレーして増湿冷却させ、吸収液の乾燥過程に
おける気液反応、及び乾燥後の固気反応にて有毒ガスを
除去する半乾式法に基づく装置などがある。2. Description of the Related Art As shown in FIG. 7, a conventional exhaust gas treating apparatus is a wet method in which after removing dust, the exhaust gas is humidified and cooled to complete saturation, and harmful gas is removed by a gas-liquid reaction with an absorbing liquid. Or a toxic gas by a gas-liquid reaction in the drying process of the absorbing liquid and a solid-gas reaction after drying, by spraying the absorbing liquid into the exhaust gas for humidification cooling as shown in FIG. There is a device based on a semi-dry method for removing the like.
【０００３】このうち、半乾式法に基づく装置では反応
生成物を排ガスの有する熱量でもって乾燥させるため、
ロータリアトマイザあるいは２流体ノズル等を用いて吸
収剤を含む液またはスラリを微粒化させる必要がある。
また、微粒化された液を完全に蒸発させるために微粒化
液に対し排ガス中での滞溜時間を確保する必要があるた
め、スプレドライヤの様に大きな反応塔が必要である。Of these, in the apparatus based on the semi-dry method, the reaction product is dried by the heat quantity of the exhaust gas,
It is necessary to atomize the liquid or slurry containing the absorbent using a rotary atomizer or a two-fluid nozzle.
Further, in order to completely evaporate the atomized liquid, it is necessary to secure a retention time in the exhaust gas for the atomized liquid, and thus a large reaction tower such as a spray dryer is required.
【０００４】なお、米国では図９に示すように、多室で
構成される電気集塵装置のうちの一室の電極をとり払い
空間とし、当該空間部に吸収液をスプレさせ、後段の電
極部で反応生成物を固体として回収する方法（E −SOX
System）が提唱されているが、一般に電気集塵装置の中
の１室の中の滞溜時間は２〜３秒程度のため、スプレさ
れた吸収液を完全に蒸発させて後段の電極部分へのダス
トの付着堆積を防ぐためには、吸収液を非常に細かくか
つ均一にして噴霧する必要があり、現状では普及するに
至っていない。In the United States of America, as shown in FIG. 9, the electrode of one chamber of the electrostatic precipitator composed of multiple chambers is used as a space for spraying the absorbing liquid into the space, and the electrode of the latter stage is sprayed. Method to recover the reaction product as a solid (E-SO X
System) has been proposed, but generally, the retention time in one chamber of the electrostatic precipitator is about 2 to 3 seconds, so the sprayed absorption liquid is completely evaporated to the electrode part in the subsequent stage. In order to prevent the adhesion and deposition of the above dust, it is necessary to spray the absorbing liquid in a very fine and uniform manner, and it has not become widespread at present.
【０００５】このように従来の半乾式法に基づく排ガス
処理装置は吸収液を完全に蒸発させるための手段とし
て、大きな反応塔（Spray Drier)による蒸発時間の確保
と、噴霧液滴径を細かくするためのロータリアトマイザ
や２流体ノズルのような特殊な手段等が必要とされてい
た。As described above, the conventional exhaust gas treatment apparatus based on the semi-dry method secures an evaporation time by a large reaction tower (Spray Drier) and makes the spray droplet diameter fine as a means for completely evaporating the absorbing liquid. Therefore, special means such as a rotary atomizer and a two-fluid nozzle have been required.
【０００６】また、反応生成物中には未反応の吸収剤が
含まれているため、半乾式法に基づく排ガス処理装置に
おいては集塵装置にて捕集した反応生成物の一部を再循
環させる構成が採られているが、石炭火力等では多量の
フライアッシュと一緒に反応生成物が捕集されるため、
再循環ラインにはフライアッシュが多量に含まれ、この
ため有効な吸収剤のリサイクルが行なえない状況にあっ
た。Further, since the reaction product contains an unreacted absorbent, a part of the reaction product collected by the dust collector is recirculated in the exhaust gas treatment apparatus based on the semi-dry method. However, the reaction product is collected together with a large amount of fly ash in coal-fired power generation, etc.
The recirculation line contained a large amount of fly ash, which made it impossible to effectively recycle the absorbent.
【０００７】[0007]
【発明が解決しようとする課題】本発明は、大型のスプ
レドライヤや、排ガス中に有害ガス吸収液を微粒化する
ための特別な装置を必要としない排ガス処理装置を提供
することを課題としている。また、本発明は、排ガス中
の有害ガスと噴霧吸収液との反応生成物を排ガスの保有
熱で乾燥させた状態で効率よく除去できるようにした排
ガス処理装置を提供することを課題としている。SUMMARY OF THE INVENTION It is an object of the present invention to provide an exhaust gas treatment device which does not require a large-sized spray dryer or a special device for atomizing the harmful gas absorbing liquid in the exhaust gas. . Another object of the present invention is to provide an exhaust gas treatment device capable of efficiently removing a reaction product of a harmful gas in an exhaust gas and a spray absorption liquid while being dried by the heat of the exhaust gas.
【０００８】更にまた、本発明は電気集塵装置などの除
塵装置と一体化された排ガス処理装置を提供することも
課題としている。また、本発明は未反応吸収剤が含まれ
ている捕集反応生成物を効果的に再循環させることがで
きるようにした排ガス処理装置を提供することも課題と
している。また、本発明は排ガス中に吸収剤を含む液を
常時適正な量噴霧させて安定した状態で運転可能な排ガ
ス処理装置を提供することも課題としている。Still another object of the present invention is to provide an exhaust gas treatment device integrated with a dust removing device such as an electrostatic precipitator. Another object of the present invention is to provide an exhaust gas treatment apparatus capable of effectively recirculating the collected reaction product containing unreacted absorbent. Another object of the present invention is to provide an exhaust gas treatment device that can be operated in a stable state by constantly spraying an appropriate amount of a liquid containing an absorbent in the exhaust gas.
【０００９】[0009]
【課題を解決するための手段及び作用】本発明は前記課
題を解決するため、処理すべき排ガスの流れと直角方向
に複数個配置され前記排ガス中の有毒ガスを吸収する吸
収剤を含む液を微粒化するスプレノズル、及び同スプレ
ノズルの後流側に前記排ガスの流れに直角方向に配置さ
れ同排ガスを通過させるのに十分な開口部を有するベル
ト状の反応生成物捕集装置を有し、前記スプレノズルで
微粒化された前記液に前記有毒ガスを吸収させて生じた
反応生成物を前記反応生成物捕集装置で捕集するよう構
成した排ガス処理装置を提供する。In order to solve the above-mentioned problems, the present invention provides a liquid containing an absorbent which is arranged in a direction perpendicular to the flow of exhaust gas to be treated and which absorbs toxic gas in the exhaust gas. A spray nozzle for atomizing, and a belt-like reaction product collector having an opening which is arranged on the downstream side of the spray nozzle in a direction perpendicular to the flow of the exhaust gas and has an opening sufficient for passing the exhaust gas, There is provided an exhaust gas treatment device configured to collect a reaction product generated by absorbing the toxic gas in the liquid atomized by a spray nozzle by the reaction product collecting device.
【００１０】本発明で採用するスプレノズルとしては特
殊なノズルを用いることなく、比較的粗い（１００μｍ
〜数１００μｍ）粒径の噴霧特性を有するスプレノズル
であってよい。またこのスプレノズルで微粒化する液は
排ガス中の有害ガスを吸収する吸収剤を含む溶液または
スラリである。The spray nozzle used in the present invention is relatively coarse (100 μm) without using a special nozzle.
It may be a spray nozzle having a spraying property of a particle size of up to several 100 μm). The liquid atomized by the spray nozzle is a solution or slurry containing an absorbent that absorbs harmful gas in the exhaust gas.
【００１１】図１に以上のように構成した本発明による
装置の原理を示している。スプレノズル１より排ガス中
に噴霧された吸収液の液滴６は排ガスの有する熱により
徐々に蒸発しながら小さな液滴となると同時に、気液反
応により排ガス中の有害ガスを吸収する。噴霧ゾーンに
おいては吸収液６の大部分はスプレノズル１の後流側に
排ガスの流れと直角方向に配置された反応生成物捕集装
置５にて捕集されるが、この部分では液滴は完全に蒸発
していない生乾きの状態であっても構わない。FIG. 1 shows the principle of the apparatus according to the present invention constructed as described above. The droplets 6 of the absorbing liquid sprayed from the spray nozzle 1 into the exhaust gas gradually evaporate due to the heat of the exhaust gas to become small droplets, and at the same time, the harmful gas in the exhaust gas is absorbed by the gas-liquid reaction. In the spray zone, most of the absorbing liquid 6 is collected by the reaction product collecting device 5 which is arranged on the downstream side of the spray nozzle 1 in the direction orthogonal to the flow of the exhaust gas, but the droplets are completely collected in this part. It may be in a dry state that has not evaporated.
【００１２】本発明による排ガス処理装置では、前記ス
プレノズルを前記反応生成物捕集装置に対し噴霧ゾーン
と非噴霧ゾーンが生じるように配置すると共に、前記捕
集装置を同噴霧ゾーンと非噴霧ゾーンを通過するよう一
定速度で移動させるように構成したものとすることがで
きる。In the exhaust gas treating apparatus according to the present invention, the spray nozzle is arranged so that a spraying zone and a non-spraying zone are formed with respect to the reaction product collecting apparatus, and the collecting apparatus is provided with the spraying zone and the non-spraying zone. It may be configured to move at a constant speed so as to pass through.
【００１３】このように構成したものとすれば、その非
噴霧ゾーンにおいては通過する排ガスは液滴によって冷
却されておらず、十分な熱量を有しており、噴霧ゾーン
をくぐり抜けて来た反応生成物捕集装置５に捕捉されて
いる生乾きの反応生成物は、この非噴霧ゾーンを通過す
るときに乾燥される。その際に非噴霧ゾーンにおいても
排ガスの冷却及び気液反応による有害ガスの吸収が行な
われる。According to this structure, the exhaust gas passing through the non-spray zone is not cooled by the droplets and has a sufficient amount of heat, so that the reaction product passing through the spray zone is produced. The raw dry reaction product trapped in the substance collector 5 is dried when passing through this non-spray zone. At that time, the exhaust gas is cooled and the harmful gas is absorbed by the gas-liquid reaction even in the non-spray zone.
【００１４】図２は反応生成物捕集装置５の例を示す
が、この捕集装置５はガス流れの垂直方向にメッシュ状
に形成されており、かつ、スプレノズルからの噴霧は噴
霧ゾーンと非噴霧ゾーンを形成する様に行なわれる。反
応生成物捕集装置５は図３に示す様に無端ベルト状に構
成してよく、それをモータ等の駆動装置によりガス流と
直角方向に動かされる。従って、噴霧ゾーンにおいて反
応生成物捕集装置５により生乾きの状態で捕集されて
も、それが非噴霧ゾーンを通過するときに反応生成物が
十分に乾燥される。FIG. 2 shows an example of the reaction product collecting device 5. This collecting device 5 is formed in a mesh shape in the vertical direction of the gas flow, and the spray from the spray nozzle is not in the spray zone. It is done to form a spray zone. The reaction product collecting device 5 may be configured as an endless belt as shown in FIG. 3, and it is moved in a direction perpendicular to the gas flow by a driving device such as a motor. Therefore, even if it is collected in the spray zone in the dry state by the reaction product collector 5, the reaction product is sufficiently dried when it passes through the non-spray zone.
【００１５】更に、本発明による排ガス処理装置では、
前記反応生成物捕集装置にて捕集した反応生成物を同捕
集装置から除去する機械的手段を有するものとすること
ができる。この機械的手段としてはブラシやエアノズル
を採用することができる。このような機械的手段を設け
たものとすれば、そこでそれらの機械的手段によって反
応生成物は捕集装置から容易に除去でき、下部のホッパ
等へ回収できる。Further, in the exhaust gas treating apparatus according to the present invention,
A mechanical means for removing the reaction product collected by the reaction product collection device from the collection device can be provided. A brush or an air nozzle can be used as the mechanical means. If such mechanical means are provided, the reaction products can be easily removed from the collector by these mechanical means, and can be collected in a hopper or the like below.
【００１６】また、本発明による排ガス処理装置ではス
プレノズルで微粒化された液を帯電させる帯電手段を有
すると共に、前記反応生成物捕集装置を導電性の材質で
構成してアースし、静電気力で前記反応生成物を前記反
応生成物捕集装置に捕集するように構成したものとする
ことができる。反応生成物捕集装置を構成する導電性の
材質としては金網などを採用する。このように構成した
排ガス処理装置によれば反応生成物を効率良く捕集可能
な装置となる。Further, the exhaust gas treating apparatus according to the present invention has a charging means for charging the liquid atomized by the spray nozzle, and the reaction product collecting apparatus is made of a conductive material and grounded, and is electrostatically charged. The reaction product may be configured to be collected by the reaction product collection device. A wire mesh or the like is used as the conductive material forming the reaction product collector. According to the exhaust gas treating apparatus configured as described above, the reaction product can be efficiently collected.
【００１７】以上のように構成した本発明による排ガス
処理装置を、排ガスの流れ方向に多室に構成された電気
集塵装置等の除塵装置のケーシング内の最前室および中
間の室のいづれか一方に組み込んで除塵装置と一体化さ
れた装置とすることができる。特に、除塵装置のケーシ
ング内の中間の室にこの排ガス処理装置を組み込むと、
石炭火力用の排ガス処理の様に多量の煤塵を含む場合に
は前段の除塵装置にて煤塵を粗取りさせてフライアッシ
ュを必要に応じ回収したあと、中間の排ガス処理装置に
よって効果的に排ガス処理ができるものとなる。The exhaust gas treating apparatus according to the present invention having the above-described structure is provided in either the foremost chamber or the middle chamber in the casing of a dust removing device such as an electric dust collector having a plurality of chambers in the flow direction of the exhaust gas. The device can be incorporated to be integrated with the dust removing device. In particular, if this exhaust gas treatment device is installed in an intermediate chamber inside the casing of the dust removing device,
When a large amount of soot dust is contained as in the case of exhaust gas treatment for coal-fired power plants, the soot dust is roughly removed by the pre-stage dust remover to collect fly ash as necessary, and then the intermediate exhaust gas treatment device is used to effectively treat the exhaust gas. Will be possible.
【００１８】本発明による排ガス処理装置では、その反
応生成物捕集装置で捕集され、排ガスから分離された前
記反応生成物を吸収剤注入ラインに戻して再循環させる
よう構成することができる。In the exhaust gas treating apparatus according to the present invention, the reaction product collected by the reaction product collecting apparatus and separated from the exhaust gas can be returned to the absorbent injection line and recirculated.
【００１９】更にまた、本発明においては反応生成物捕
集装置の出口における排ガス温度を検知する排ガス温度
検知器を備え、同検知器で検知される排ガス温度を露点
より１０℃以上高くするよう前記スプレノズルからの噴
霧量を調整するよう構成することができる。Furthermore, in the present invention, an exhaust gas temperature detector for detecting the exhaust gas temperature at the outlet of the reaction product collecting device is provided, and the exhaust gas temperature detected by the detector is set to be higher than the dew point by 10 ° C. or more. It can be configured to adjust the amount of spray from the spray nozzle.
【００２０】[0020]
【実施例】以下本発明による排ガス処理装置を図１〜図
６に示した実施例に基づいて具体的に説明する。図１に
ついて先に説明したように吸収剤を含む溶液またはスラ
リは配管４により供給されノズル１により排ガス中に噴
霧される。排ガス流れの後流側には開口部を有する例え
ば金網状の反応生成物捕集装置５が配置される。この捕
集装置５は図３に示される様にガス流れに垂直方向に移
動出来る様、無端ベルト状に構成され、モータ７及びス
プロケット８等によって矢印方向に駆動される。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Exhaust gas treatment equipment according to the present invention will be specifically described below based on the embodiments shown in FIGS. As described above with reference to FIG. 1, the solution or slurry containing the absorbent is supplied through the pipe 4 and sprayed into the exhaust gas through the nozzle 1. On the downstream side of the exhaust gas flow, for example, a wire mesh-like reaction product collector 5 having an opening is arranged. As shown in FIG. 3, the collecting device 5 is configured as an endless belt so that it can move in a direction perpendicular to the gas flow, and is driven by a motor 7 and a sprocket 8 in the arrow direction.
【００２１】またノズル１は図２に１例を示す様にノズ
ルのカバーする噴霧ゾーンは、捕集装置５が移動する際
に必ず噴霧ゾーンと非噴霧ゾーンとを通過する様に配置
される。また吸収液に電荷を与える手段として図１にお
いてノズル１の回りにはリング状の電極２が配置されて
おり、同電極は高電圧供給装置３により高電圧が印加さ
れる。電極２はノズル１の近傍に例えば平行平板状であ
っても構わないが、ノズル１より微粒化された吸収液滴
６が誘導帯電による電荷を有する様に配置される。な
お、帯電手段としてはその他にもコロナ放電を利用する
方法があるが、吸収液滴６に電荷を与える手段であれば
どの様な手段であっても構わないことは言うまでもな
い。Further, the nozzle 1 is arranged so that the spray zone covered by the nozzle as shown in FIG. 2 always passes through the spray zone and the non-spray zone when the trapping device 5 moves. A ring-shaped electrode 2 is arranged around the nozzle 1 in FIG. 1 as a means for giving a charge to the absorbing liquid, and a high voltage is applied to the electrode by a high voltage supply device 3. The electrode 2 may be in the shape of, for example, a parallel plate in the vicinity of the nozzle 1, but is arranged so that the absorption droplets 6 atomized by the nozzle 1 have a charge due to induction charging. Although there is another method of using corona discharge as the charging means, it goes without saying that any means may be used as long as it is a means of giving an electric charge to the absorbing droplets 6.
【００２２】また図５は捕集装置５の構造例を示すもの
で、ガス流れと直角方向に開口部を有するメッシュ状の
捕集装置は無端ベルト状に構成されてモータ７により駆
動され、付着した反応生成物は、これを払い落す手段で
あるブラシ９によりかき落され、下方のホッパへ粉体と
して回収される。ホッパへ回収された反応生成物中には
未反応の吸収剤が含まれているので吸収剤注入ラインに
戻して排ガス中に再循環させることができる。なお、ブ
ラシ９の代わりにエアノズル等の手段を採用することが
可能であることは言うまでもない。図６は非噴霧ゾーン
にエアノズル１２を配した例を示す。FIG. 5 shows an example of the structure of the collection device 5. The mesh-shaped collection device having an opening in the direction perpendicular to the gas flow is constituted by an endless belt and is driven by a motor 7 to be attached. The reaction product is scraped off by a brush 9 which is a means for brushing it off, and is collected as powder in the lower hopper. Since the unreacted absorbent is contained in the reaction product recovered in the hopper, it can be returned to the absorbent injection line and recycled into the exhaust gas. Needless to say, a means such as an air nozzle can be used instead of the brush 9. FIG. 6 shows an example in which the air nozzles 12 are arranged in the non-spray zone.
【００２３】また図３には上記の排ガス処理装置を電気
集塵装置（EP）の第１室に組込んだ例を、また図４は第
２室に組込んだ例を示す。また、装置を安定に運転する
ための手段として図３に示す様に排ガス処理部の出口に
温度検出器１４を設け、その温度により配管４に設けら
れた流量制御弁１５を制御してスラリ噴霧量を制御する
手法があるが、これは従来の半乾式排ガス処理法と同じ
ものであり、本発明を特定するものではない。なお、反
応生成物捕集装置の出口における排ガス温度を露点より
１０℃以上高くなるようにスプレノズル１からの吸収液
の噴霧量を調節する。以上、本発明を図示した実施例に
基づいて具体的に説明したが、本発明がこれらの実施例
に限定されず特許請求の範囲に示す本発明の範囲内で、
その形状、構造に種々の変更を加えてよいことはいうま
でもない。Further, FIG. 3 shows an example in which the above exhaust gas treatment device is incorporated in the first chamber of the electrostatic precipitator (EP), and FIG. 4 shows an example in which it is incorporated in the second chamber. Further, as a means for stably operating the apparatus, as shown in FIG. 3, a temperature detector 14 is provided at the outlet of the exhaust gas treatment section, and the flow control valve 15 provided in the pipe 4 is controlled by the temperature to control the slurry spray. Although there is a method of controlling the amount, this is the same as the conventional semi-dry exhaust gas treatment method and does not specify the present invention. The amount of the absorption liquid sprayed from the spray nozzle 1 is adjusted so that the exhaust gas temperature at the outlet of the reaction product collecting device is higher than the dew point by 10 ° C. or more. The present invention has been specifically described above based on the illustrated embodiments, but the present invention is not limited to these embodiments, and within the scope of the present invention shown in the claims,
It goes without saying that various changes may be made to the shape and structure.
【００２４】[0024]
【発明の効果】以上具体的に説明したように、本発明に
よる排ガス処理装置においては、半乾式排ガス処理法に
基づいて、大形のスプレドライヤを必要とすることな
く、かつ噴霧させる液の完全蒸発の手段として微粒化す
るための特別な装置を必要とすることなく、SOX , HCl
等の有毒ガスを処理することが出来る安価でコンパクト
な装置とすることができる。As described above in detail, in the exhaust gas treating apparatus according to the present invention, the semi-dry type exhaust gas treating method is used, and a large spray dryer is not required and the liquid to be sprayed is completely removed. SO X, HCl without the need for special equipment for atomization as a means of evaporation
It is possible to provide an inexpensive and compact device capable of processing toxic gas such as.
【図１】本発明の一実施例に係る排ガス処理装置におけ
る主要部の構成を示す縦断面図。FIG. 1 is a vertical cross-sectional view showing the configuration of a main part of an exhaust gas treatment apparatus according to an embodiment of the present invention.
【図２】図１に示す装置におけるノズル１からのスプレ
ー噴霧のパターンの１例を示す正面図。FIG. 2 is a front view showing an example of a spray spray pattern from a nozzle 1 in the apparatus shown in FIG.
【図３】電気集塵装置の中に本発明による排ガス処理装
置を組込んだ実施例を示す側面図。FIG. 3 is a side view showing an embodiment in which an exhaust gas treating apparatus of the present invention is incorporated in an electric dust collector.
【図４】図３と同様であるが、電気集塵装置の中段の部
屋に本発明による排ガス処理装置を組込んだ側面図。FIG. 4 is a side view similar to FIG. 3, but incorporating the exhaust gas treatment device of the present invention in the middle room of the electrostatic precipitator.
【図５】本発明による装置で採用する反応生成物捕集装
置の構造例を示す斜視図。FIG. 5 is a perspective view showing a structural example of a reaction product collecting device used in the device according to the present invention.
【図６】本発明による装置で採用する反応生成物を捕集
装置から除去する機械的手段の一例を示す側面図。FIG. 6 is a side view showing an example of a mechanical means for removing a reaction product used in the apparatus according to the present invention from a collector.
【図７】従来の湿式法による排ガス処理装置のフローを
示す系統図。FIG. 7 is a system diagram showing a flow of an exhaust gas treatment apparatus by a conventional wet method.
【図８】従来の半乾式法による排ガス処理装置のフロー
を示す系統図。FIG. 8 is a system diagram showing a flow of a conventional exhaust gas treatment apparatus by a semi-dry method.
【図９】従来のE −SOX システムを示す系統図。FIG. 9 is a system diagram showing a conventional E-SO X system.
１ スプレノズル ２ 電極リング ３ 直流高電圧発生装置 ４ 配管 ５ 反応生成物捕集装置 ６ 吸収液滴 ７ モータ ８ スプロケット ９ ブラシ １０ 電極の配列 １１ ケーシング １２ エアノズル １３ アース １４ ２流体ノズル 1 Spray Nozzle 2 Electrode Ring 3 DC High Voltage Generator 4 Piping 5 Reaction Product Collector 6 Absorbed Droplet 7 Motor 8 Sprocket 9 Brush 10 Electrode Arrangement 11 Casing 12 Air Nozzle 13 Earth 14 Two Fluid Nozzle
Claims (7)
数個配置され前記排ガス中の有毒ガスを吸収する吸収剤
を含む液を微粒化するスプレノズル、及び同スプレノズ
ルの後流側に前記排ガスの流れに直角方向に配置され同
排ガスを通過させるのに十分な開口部を有するベルト状
の反応生成物捕集装置を有し、前記スプレノズルで微粒
化された前記液に前記有毒ガスを吸収させて生じた反応
生成物を前記反応生成物捕集装置で捕集するよう構成し
たことを特徴とする排ガス処理装置。1. A spray nozzle, which is arranged in a plurality at right angles to the flow of exhaust gas to be treated and atomizes a liquid containing an absorbent that absorbs toxic gas in the exhaust gas, and a spray nozzle downstream of the spray nozzle. It has a belt-shaped reaction product collector arranged in a direction perpendicular to the flow and having an opening sufficient to pass the exhaust gas, and absorbs the toxic gas in the liquid atomized by the spray nozzle. An exhaust gas treating apparatus, characterized in that the reaction product produced is collected by the reaction product collecting device.
装置に対し噴霧ゾーンと非噴霧ゾーンが生じるように配
置すると共に、前記捕集装置を同噴霧ゾーンと非噴霧ゾ
ーンを通過するよう一定速度で移動させることを特徴と
する請求項１記載の排ガス処理装置。2. The spray nozzle is arranged so that a spraying zone and a non-spraying zone are formed with respect to the reaction product collecting device, and the collecting device is moved at a constant speed so as to pass through the spraying zone and the non-spraying zone. The exhaust gas treatment apparatus according to claim 1, wherein the exhaust gas treatment apparatus is moved.
応生成物を同捕集装置から除去する機械的手段を有する
ことを特徴とする請求項２記載の排ガス処理装置。3. The exhaust gas treating apparatus according to claim 2, further comprising a mechanical unit that removes the reaction product collected by the reaction product collecting apparatus from the collection apparatus.
電させる帯電手段を有すると共に、前記反応生成物捕集
装置を導電性の材質で構成してアースし、静電気力で前
記反応生成物を前記反応生成物捕集装置に捕集するよう
にしたことを特徴とする請求項１〜３のいづれかに記載
の排ガス処理装置。4. A charging means for charging the liquid atomized by the spray nozzle is provided, and the reaction product collecting device is made of a conductive material and grounded, and the reaction product is electrostatically charged to the reaction product. The exhaust gas treatment device according to any one of claims 1 to 3, wherein the exhaust gas treatment device is configured to collect the reaction product.
方向に多室に構成された除塵装置のケーシング内の最前
室および中間の室のいづれか一方に組み込んだことを特
徴とする請求項１〜３のいづれかに記載の排ガス処理装
置。5. The exhaust gas treatment device is incorporated in either one of a front chamber and an intermediate chamber in a casing of a dust removing device having a plurality of chambers in a flow direction of the exhaust gas. The exhaust gas treatment device according to any one of 1.
記排ガスから分離された前記反応生成物を吸収剤注入ラ
インに戻して再循環させるよう構成したことを特徴とす
る請求項１〜３のいづれかに記載の排ガス処理装置。6. The reaction product collecting device collects the reaction product and separates it from the exhaust gas by returning the reaction product to an absorbent injection line for recirculation. The exhaust gas treatment device according to any one of 3 above.
排ガス温度を検知する排ガス温度検知器を備え、同検知
器で検知される排ガス温度を露点より１０℃以上高くす
るよう前記スプレノズルからの噴霧量を調整するよう構
成したことを特徴とする請求項１〜３のいづれかに記載
の排ガス処理装置。7. A spray from the spray nozzle is provided with an exhaust gas temperature detector for detecting the exhaust gas temperature at the outlet of the reaction product collecting device, and the exhaust gas temperature detected by the detector is set to be higher than the dew point by 10 ° C. or more. The exhaust gas treating apparatus according to any one of claims 1 to 3, which is configured to adjust the amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17666493A JP3272491B2 (en) | 1993-07-16 | 1993-07-16 | Exhaust gas treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17666493A JP3272491B2 (en) | 1993-07-16 | 1993-07-16 | Exhaust gas treatment equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0724253A true JPH0724253A (en) | 1995-01-27 |
| JP3272491B2 JP3272491B2 (en) | 2002-04-08 |
Family
ID=16017551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17666493A Expired - Fee Related JP3272491B2 (en) | 1993-07-16 | 1993-07-16 | Exhaust gas treatment equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3272491B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6339529B1 (en) * | 1999-06-21 | 2002-01-15 | Nec Corporation | Electric double layer capacitor and method of forming the same |
| CN112484532A (en) * | 2020-11-27 | 2021-03-12 | 胡晓蝶 | Waste heat utilization device and use method thereof |
| KR20220087165A (en) * | 2020-12-17 | 2022-06-24 | 한양대학교 에리카산학협력단 | Electrostatic spray apparatus |
| KR102644797B1 (en) * | 2023-07-14 | 2024-03-08 | 주식회사 팜인 | Air purification device and air purification system including the same |
-
1993
- 1993-07-16 JP JP17666493A patent/JP3272491B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6339529B1 (en) * | 1999-06-21 | 2002-01-15 | Nec Corporation | Electric double layer capacitor and method of forming the same |
| CN112484532A (en) * | 2020-11-27 | 2021-03-12 | 胡晓蝶 | Waste heat utilization device and use method thereof |
| CN112484532B (en) * | 2020-11-27 | 2022-06-17 | 东营银桥化工有限责任公司 | Waste heat utilization device and use method thereof |
| KR20220087165A (en) * | 2020-12-17 | 2022-06-24 | 한양대학교 에리카산학협력단 | Electrostatic spray apparatus |
| KR102644797B1 (en) * | 2023-07-14 | 2024-03-08 | 주식회사 팜인 | Air purification device and air purification system including the same |
| WO2025018722A1 (en) * | 2023-07-14 | 2025-01-23 | 주식회사 팜인 | Air purification device and air purification system comprising same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3272491B2 (en) | 2002-04-08 |
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