JP4270528B2 - Equipment for removing harmful substances from exhaust gas in combustion furnaces - Google Patents

Description

すなわち本発明における本実施の形態に使用される上述の吸着剤（６４）は、大きく分けると３つの基剤から成っており、第１のものはグリーンと呼ばれる海底隆起物の海緑石、第２のものはブラックと呼ばれる火山岩ガラス鉱石、第３のものは数億年を経過した貝化石夫々であり、これらの３種の純天然組成の基剤を複合することによる生じる種々な効果は計り知れないものがあり、現在の科学分析能力では解明できない様々の生命体にとって必須といわれる稀有元素を含有しているものである。
【００４５】
なおこの吸着剤１０ｇを蒸留水１００ｍｌ中に浸漬したことによる水素イオン濃度変化は、直後で６．１、８時間後で７．４、２４時間後で７．４、４８時間後で７．４であった。
【００４６】
またこの吸着剤と麦飯石とにおける汚濁物質吸着性能を対比すると表２に示す通りのものであり、これは吸着剤、麦飯石夫々の５０ｇを、水銀含有量０．０１ｗｔ ｐｐｍの溶液５００ｍｌに投入し、水銀含有量の経時変化を測定したものである。
【００４７】
【表２】

更にこの吸着剤と活性炭とにおける６価クロムの吸着性能は表３に示す通りのものであり、これは吸着剤、活性炭夫々の異なる重量％における比較例で、１．６７ｍｇ／ｌの試験液を使用したものである。
【００４８】
【表３】

またこの吸着剤における有害重金属と農薬有機塩素の分解吸着性能は表４に示す通りのものであり、これは各種ドリンを溶融させた水１００ｍｌ中に吸着剤を投入後の経時変化を見たものである。
【００４９】
【表４】

重金属Ｃｄ（カドミニウム）水溶液の処理作用は表５に示す通りのものであり、これは脱塩水にＣａ（ＣＨ₃ ＣＯＯ）₂ ２Ｈ₂ Ｏを加え、Ｃｄ１．１５ｐｐｍとした水溶液に吸着剤を投入後の経時変化を見たものである。
【００５０】
【表５】

これによると、１．１５のカドミニウム濃度が１日経過すると６０％近く減少し、２日経過では１／６近くまで減少することが確認され、この外にアンモニア、亜硝酸性等の塩素、遊離性塩素、シアン、アノン等の化合物の処理作用があることも認められ、ＰＣＢ、ダイオキシン類等の有害物質についても同様な吸着処理作用を発揮することが確認された。
【００５１】
次に以上のように構成された実施の形態において、これによって廃棄物焼却、各種燃料燃焼用等のための燃焼炉１において生じた各種の有害成分、煤塵等を含有する排ガスを処理する場合を説明すると、燃焼炉１から排ガス洗浄塔１０内にその上部のガス導入口１１から排ガスが導入されると、排風機６８の排風作用による排ガス洗浄塔１０内の負圧とも相俟ち煤塵等は下方に落下案内されると共に噴射供給機構１５からシャワー状に噴射された吸着剤が混入されている吸着水液によって洗煙、冷却され、また上下２段に配置構成された排ガス処理機構２０によって排ガス中の有害成分と吸着水液中の吸着剤とが接触し、有害成分を溶解吸着した排液・汚染水液等は排液管３８を経て分離機構８０に排出されるのである。すなわち吸着水液中に混入されている粉末状の石英閃緑袴岩である吸着剤は排ガス中の有害物質であるＰＣＢ、ダイオキシン類その他を吸着して、また吸着水液自体がダイオキシン類、塩素等を吸着溶解して排液となって排ガス処理機構２０における排液口３７から分離機構８０に排水される。
【００５２】
特にこの排ガス洗浄塔１０内で排煙中の有害成分等が吸着水液によって吸着除去された後の排液は排ガス処理機構２０における分離落下部３１によって排液口３７から排ガス洗浄塔１０外に案内排出され、ガス成分は分離落下部３１における流路３０を経ることで排ガス洗浄塔１０内の下部に充満されることで排液分とは分離され、ガス導出口１２を経て蒸気除去機構４０内に導入される。なおこの排ガス洗浄塔１０において、ガス導入口１１での排ガスの温度は７００〜８００℃の高温であったが、ガス導出口１２での排ガスの温度は７０〜８０℃に急速に冷却されたものである。
【００５３】
そして蒸気除去機構４０内に導入された排ガスは、シャワーノズル４９からシャワー状に噴射される吸着水液によって再度冷却洗浄されるのであり、残余の有害成分等は吸着されて汚染排液として排水口４５から分離機構１１０に排出される一方、排風機６８の排風作用による蒸気除去機構４０内の負圧とも相俟ちガス成分は排気流路５０内で蛇行して流れ、その流れに沿うフィルター６１夫々を順次に経ることで有害成分等がフィルター６１内の吸着剤６４に吸着除去され、清浄なものとなって排気煙突６９を経て大気に放出されるのである。なお蒸気除去機構４０内のフィルター６１は、適当時間の経過毎に開閉扉４４の開閉によって蒸気除去機構４０外に取り出され、例えば分離機構８０，１１０における分離タンク８１，１１１内で洗浄された後に天日等によって乾燥させることで吸着能力を回復させて再使用する。
【００５４】
一方、排ガス洗浄塔１０及び蒸気除去機構４０夫々から排出された有害成分が吸着されている吸着剤分を含有している吸着排液、汚染水液等は、分離機構８０，１１０における分離タンク８１，１１１内で放置されることでそのカーボン、タール分等の浮遊成分は溢流除去され、また吸着剤成分が沈殿し、沈殿物は廃棄口８５から取り出し除去されて例えば高温溶融炉内で溶融処理してスラグ化される。また分離タンク８１，１１１内ではフィルター９５，１１２によって濾過、清浄化され、更に冷却され、吸着剤が投入補充されて排ガス洗浄塔１０の焼付防止部１３、噴射供給機構１５に、また蒸気除去機構４０のシャワーノズル４９に夫々加圧供給されて吸着水液として再度使用されるよう循環されるのである。
【００５５】
しかして以上に説明した実施の形態における除去装置を実施した際の排ガス等の処理前と処理後とでの排ガス中の有害成分の実測データを表６に示す。これによると７００〜８００℃の排ガスが６０〜７０℃に急速冷却されることでその洗浄、処理中にダイオキシン類は生成されず、また生成されることがあっても吸着剤によって吸着除去されるのである。特に有害とされているダイオキシン類のほとんどが除去され、また塩化水素濃度もほぼ１／１０に低減されたことが明らかにされている。また通常は水冷方式による場合に、排ガス中の水分量が多くなることでダイオキシン類が水分に混じって排出されると共に、７０℃以下になると再生成されることもないのである。
【表６】

【００５６】
【発明の効果】
本発明は以上のように構成されており、これがために、現在、各種の有害物質を放出している燃焼炉、焼却炉等においても、その各種廃棄物の焼却、燃焼等によって生じる排ガスである煤煙、排煙中に含まれる有害成分を確実に除去吸着してクリーンな状態で大気中に放散できるのである。また吸着水液中に混入した吸着剤に吸着した有害成分等は排液中から簡単に分離でき、それらは高温で溶融処理して無害なスラグ状となしてレンガその他の土木・建築用資材等としての再利用を可能とさせ、地球環境の保全と資源の有効利用とを図ることができるのである。しかも焼却、焼却後の排ガスの排出、この排ガス中からのダイオキシン類、塩素等の有害成分、更には地球温暖化の一因とされる二酸化炭素等の吸着除去、吸着後の分離その他の処理はいずれも外部から遮断された状態での閉塞処理システムとすることができ、周囲の環境を汚染させず、埋め立て等の最終処分場の必要もなく、二次公害を生じることなく安全に処理することができるのである。
【００５７】
すなわちこれは本発明において、排ガスを導入するガス導入口１１を上部に、処理後の排ガスを排出するガス導出口１２を下部に夫々有すると共に、吸着水液を噴射させて排ガスを洗煙、冷却し、排液を外部に排水し、ガス成分を下方に案内分離する排ガス処理機構２０を内部に配装して成る排ガス洗浄塔１０と、この排ガス洗浄塔１０に連続設置され、吸着水液によって洗煙後、フィルター６１によって有害成分、蒸気分を除去して外部に排気させる蒸気除去機構４０と、排ガス洗浄塔１０、蒸気除去機構４０夫々から排水される排液中の吸着剤分をフィルター９５，１１２によって除去して排液等を清浄にする分離タンク８１，１１１上に、この分離タンク８１，１１１から蒸発される蒸発水を冷却、水滴化して分離タンク８１，１１１に還流させる分離タンク蓋１０１，１１３を配置した分離機構８０，１１０とを備えているものとしたからであり、これによって、例えば焼却後に生じるダイオキシン類その他の有害物質の除去、クリーンとした排気の放散、クローズドシステムとしたことの排液処理の安全性、有害物質を凝集した吸着剤分の溶融処理による無害化等を図ることができるのである。
【００５８】
また各種廃棄物等の焼却・燃焼によって生じた排ガスが導入される排ガス洗浄塔１０は、分離機構８０からの冷却された吸着水液が供給される焼付防止部１３をガス導入口１１に設け、また排ガス処理機構２０上に吸着水液をシャワー状に噴射する噴射供給機構１５を配装してあるから、ガス導入口１１から導入された排ガスを急速に冷却、洗煙し、しかも急速に冷却することで排ガス中にベンゼン環、塩素成分等が含有されていてもダイオキシン類の発生を少なくし、また発生しても吸着剤によって吸着して排液・汚染水として蒸気除去機構４０、分離機構８０，１１０等によって無害化の後処理が行なわれるのである。
【００５９】
そしてまた排ガスの吸着水液による洗浄を行なう排ガス洗浄塔１０の下方にこの排ガス洗浄塔１０と一体状にして、排ガス中からの水分を除去分離する蒸気除去機構４０を連続配置してあるため、全体として一体化されたコンパクトなものとして纏められ、設置面積を少なくでき、また低コストで稼動運転できるものである。
【００６０】
しかもこの排ガス洗浄塔１０内に配装した排ガス処理機構２０は、上部スカート２２に上部が閉塞板２３によって閉塞されている上部筒２４を連設すると共に閉塞板２３周囲に上部フランジガイド２５を形成した上部閉塞ガイド部２１と、上部フランジガイド２５の下方に位置して設けた下部フランジガイド２６と、下部スカート２８に上部が開口されている下部筒２９を連設し、上部閉塞ガイド部２１の下方に配置して上部閉塞ガイド部２１との間で排ガス分の流路３０を形成している下部流出ガイド部２７と、上部閉塞ガイド部２１における上部スカート２２に開口形成された分離落下部３１とを備えているから、ガス導入口１１から導入された排ガスは、排ガス洗浄塔１０内においての上下方向の蛇行形態として下方への急激な落下を抑制し、また外周側から内周側に流れるものとなる流動抵抗と相俟ち、噴射供給機構１５から噴射される吸着水液との接触を極めて効率的に行なわせ、排ガス中の有害成分を吸着するのである。
【００６１】
またこの排ガス処理機構２０においての分離落下部３１は、上部スカート２２に開口形成した落下孔３２に、多数の透孔３４が開穿されていると共に下方に至るに伴ない次第に窄まるようにした流出口３５が下部に形成されている内側壁３３と、この内側壁３３の外周に囲繞配置した外側壁３６との二重構造にしてあるから、排ガスの流動抵抗を増大させて吸着水液との混合、接触等を一層増大させ、その結果、吸着剤に吸着させて吸着剤を核として凝集させるものである。そればかりでなく、有害成分を溶解した排液・汚染水とそれが除去されたガス成分とを分離させ、排液・汚染水等は下部スカート２８に関連して開口形成した段差構造の排液口３７から滞留されることなく排ガス洗浄塔１０外に排水される一方、ガス成分は排ガス処理機構２０内方に案内され、排ガス処理機構２０の下方であるガス導出口１２に案内下降されるのである。
【００６２】
更に排ガス洗浄塔１０から排気されるガス成分を処理する蒸気除去機構４０は、排ガス洗浄塔１０に連続する器枠４１内に配置した冷却手段５１で蛇行状に形成された排気流路５０中にフィルター６１を交換・着脱自在に分散配置してあるから、器枠４１内に噴射される吸着水液によってガス成分を更に冷却、洗煙し、蛇行状に流動されることでフィルター６１内の吸着剤６４との接触を増大させるものとなり、ガス成分中に残存する有害成分更には湿気分を一層確実に吸着除去でき、清浄、乾燥した無害化された状態で大気に放散するのである。また冷却手段５１は器枠４１内に形成する蛇行状の排気流路５０の周囲及び流路中を冷却させるから、排ガスを効率的に更に７０℃以下に急速冷却でき、ダイオキシン類の再生成発生の余地を無くしているのである。しかも冷却手段５１を形成している上部壁５２、下部壁５３、連通管５４等には下部側に配置の給水口５５から冷却水が供給され、上部側に配置の給出口５６から熱交換後の温水が給出されるものとしてあるから、冷却効率も優れるものである。
【００６３】
この蒸気除去機構４０における交換・着脱自在なフィルター６１は、内部に固形化されている吸着剤６４を収納してあるから、有害成分等を吸着することで汚染されても、器枠４１内から取り出し、例えば分離機構８０，１１０における分離タンク８１，１１１内で洗浄した後に例えば天日で乾燥させることでその吸着能力を回復でき、所定の吸着能力を常時維持できる等のメンテナンスを容易に行なうことができる。なおこのようなメンテナンスは、分離機構８０，１１０夫々におけるフィルター９５，１１２についても同様に行なえるものである。
【００６４】
また分離機構８０，１１０は、投入された汚染水液等中の浮遊する汚染物質を溢流除去させ、有害物質をフィルター９５，１１２によって除去して汚染水液等を清浄にする分離タンク８１，１１１と、この分離タンク８１，１１１からの蒸発水を冷却、水滴化して分離タンク８１，１１１に還流させる分離タンク蓋１０１，１１３とから構成してあるから、排ガス洗浄塔１０、蒸気除去機構４０等から排水された排液・汚染水中に溶解、吸着した有害成分等を、分離タンク８１，１１１ではそのタール等の浮遊物質は溢流手段８９を経て浮遊溢流させて、また吸着剤に凝集された凝集物質は下方傾斜している案内面８３、廃棄口８５によって集積状に沈殿させて夫々処理できると共に、分離タンク８１，１１１からの蒸発水を冷却構造の分離タンク蓋１０１，１１３によって水滴化して還流させることと相俟ち、清浄にした吸着水液として再度の吸着剤の補充によって排ガス洗浄塔１０あるいは蒸気除去機構４０内に供給、噴射させるものとして再使用、循環できるものである。しかも排ガス洗浄塔１０内に導入された排ガス中の有害成分等は、最終的に吸着剤に吸着、凝集されて沈殿物、ヘドロ等としてこの分離機構８０，１１０における分離タンク８１，１１１内に沈殿されるから、それらを取り出し、スラグとして再度溶融燃焼したり、建築・構築材料として二次利用したり等によって無害化することができる。
【００６５】
すなわち分離タンク８１（１１１）では、そのタンク容器８２内が分離区画壁８６で投入室８７、分離室８８に区画されていて、投入室８７における溢流手段８９によって浮遊成分を溢流除去でき、分離室８８に配装したフィルター９５（１１２）によって汚染水を清浄化した後では汲上管９６（１１６）によって揚水して排ガス洗浄塔１０あるいは蒸気除去機構４０に供給でき、その噴射供給機構１５あるいはシャワーノズル４９を経て再度吸着水液として利用でき、汚染される吸着水液は装置外部に漏出させず、また不快臭、煙等も外部に漏出させないクローズドシステムとして安全性を高めたものとすることができる。
【００６６】
一方、この分離タンク８１（１１１）上に配置された分離タンク蓋１０１（１１３）では、分離タンク８１（１１１）をほぼ覆うようにした覆い蓋１０２によって蒸発水を確実に捕捉し、捕捉した蒸発水はその傾斜しているほぼ扁平状の冷却室１０３によって冷却されて水滴化され、その水滴は覆い蓋１０２内に形成した中空錐体状の遮蔽案内板１０６上面に落下案内されて還流管１０７を経て分離タンク８１（１１１）内に還流させることができる。
【図面の簡単な説明】
【図１】本発明の一実施の形態を示す全体概略図である。
【図２】同じく排ガス洗浄塔の縦断面図である。
【図３】同じく図２におけるＡ−Ａ線断面図である。
【図４】同じく図２におけるＢ−Ｂ線断面図である。
【図５】同じく排ガス洗浄塔における分離落下部の斜視図である。
【図６】同じく排ガス洗浄塔における排液口の断面図である。
【図７】同じく蒸気除去機構の縦断面図である。
【図８】同じくその正面図である。
【図９】同じく蒸気除去機構におけるフィルターの一部切欠斜視図である。
【図１０】同じく分離機構の縦断面図である。
【符号の説明】
１…燃焼炉 ２…排煙路
１０…排ガス洗浄塔 １１…ガス導入口
１２…ガス導出口 １３…焼付防止部
１４…噴射孔 １５…噴射供給機構
１６…ノズル
２０…排ガス処理機構 ２１…上部閉塞ガイド部
２２…上部スカート ２３…閉塞板
２４…上部筒 ２５…上部フランジガイド
２６…下部フランジガイド ２７…下部流出ガイド部
２８…下部スカート ２９…下部筒
３０…流路 ３１…分離落下部
３２…落下孔 ３３…内側壁
３４…透孔 ３５…流出口
３６…外側壁 ３７…排液口
３８…排液管
４０…蒸気除去機構 ４１…器枠
４２…接続口 ４３…排気口
４４…開閉扉 ４５…排水口
４６…排水溝 ４７…案内板
４９…シャワーノズル ５０…排気流路
５１…冷却手段 ５２…上部壁
５３…下部壁 ５４…連通管
５５…給水口 ５６…給出口
６１…フィルター ６２…支持材
６３…フィルターボックス ６４…吸着剤
６５…蓋板 ６６…排気管
６７…ダンパ ６８…排風機
６９…排気煙突
７０…冷却機構 ７１…冷却水タンク
７２…給水管 ７３…給出管
７４…ポンプ ７５…フィルター
７６…チラーユニット
８０…分離機構 ８１…分離タンク
８２…タンク容器 ８３…案内面
８４…廃棄樋 ８５…廃棄口
８６…分離区画壁 ８７…投入室
８８…分離室 ８９…溢流手段
９１…排出部 ９５…フィルター
９６…汲上管 ９７…ポンプ
９８…吸着剤投入手段 ９９…給水手段
１０１…分離タンク蓋 １０２…覆い蓋
１０３…冷却室 １０４…給水口
１０５…給出口 １０６…遮蔽案内板
１０７…還流管
１１０…分離機構 １１１…分離タンク
１１２…フィルター １１３…分離タンク蓋
１１４…タンク １１５…ポンプ
１１６…還流管[0001]
BACKGROUND OF THE INVENTION
The present invention, for example, incinerates various industrial wastes or removes harmful gases generated when burning various fuels, harmful dust contained in soot, and dioxins and other harmful components by adsorption separation, The present invention relates to a device for removing harmful substances from exhaust gas in a combustion furnace that can be cleaned and detoxified.
[0002]
[Prior art]
Use of adsorption, absorption, diffusion, and centrifugal force as methods for purifying exhaust gas generated during incineration of various industrial wastes such as plastics, rubber, waste oil, garbage, garbage, etc. , Drying, control by gas analyzer, chemical purification, etc. For example, in the case of the adsorption method, the slaked lime powder is injected into the flue gas flue for deriving waste smoke after incineration to adsorb harmful components contained in the exhaust gas, mainly chlorine, etc., mainly to the slaked lime powder. After that, it is collected by filtration through a filter. In addition, it is collected by an electric dust collector or collected by cooling with cooling water.
[0003]
[Problems to be solved by the invention]
However, in the adsorption method using slaked lime powder as described above, the deposits in the filter that have adsorbed and collected chlorine, harmful components, etc. must be finally disposed. For example, when they are landfilled, they penetrate into the groundwater after landfill. If the disposal that causes the above is incomplete, secondary pollution may occur. In addition to depositing slag in a high-temperature melting incinerator, incineration ash is not currently available for reuse, so if it is finally landfilled, similar problems will occur. However, the number of landfill sites required for landfilling is gradually decreasing, and its installation is not easily accepted.
[0004]
On the other hand, in the case of treatment by combustion treatment, since the combustible object is various wastes, if chlorine, benzene ring, metal, etc. are present in the composition formed in the combustion process, Therefore, when the temperature is around 300 ° C., toxic chemical substances such as dioxins are inevitably generated. Also, when the composition is released into the atmosphere at a high temperature after combustion, dioxins are naturally formed during the cooling process, and cooling is performed when removing harmful components, etc. in the exhaust gas generated by incineration and combustion. However, when the above-mentioned conditions are satisfied in the treatment, dioxins are generated during the treatment and further after the treatment, and the conventional removal method and apparatus cannot sufficiently cope with them.
[0005]
In addition, when dust is collected by an electric dust collector and a bag filter as described above, the electrodes and the like are oxidatively corroded by hydrochloric acid, etc., clogging occurs due to adhering tar, and the filtration and dust collection functions are greatly reduced. According to the method, the apparatus, the gantry and others were corroded by oxidation due to the processing waste liquid etc. in which harmful components were dissolved. Furthermore, although a method of mixing activated carbon and water has been proposed, the cost of secondary treatment for removing chlorine from water is high, and the economic burden is large. In any case, with conventional equipment, devices, and methods, dioxins and the like generated due to exhaust gas generated during incineration and combustion are not sufficiently removed and exhausted while these are included. It has become. In addition, dioxins and other harmful components released into the atmosphere are then lowered and eventually accumulated in the human body through fish, cultivated products, etc., contributing to carcinogenesis and causing teratogenic problems. It is.
[0006]
In this way, because of the need to protect the global environment and the emission of carbon dioxide, which is the cause of global warming, is suppressed, no harmful gases are diffused into the atmosphere, and the generated incinerated ash At present, there is a demand for a processing method that does not destroy the environment because it does not require disposal.
[0007]
Therefore, the present invention was created in view of the existing circumstances as described above. In general, in the exhaust gas generated by incineration of various industrial wastes, power generation, heating and other fuel combustion, etc. Adsorbs and removes harmful components reliably and can be cooled and dissipated into the atmosphere without causing smoke or unpleasant odors in a clean state. It is possible to protect the surrounding environment without any trouble, and the removed harmful components are melted in a high-temperature melting incinerator to form harmless slag, which can be reused as bricks and other civil engineering and construction materials. It is an object of the present invention to provide an apparatus for removing harmful substances from exhaust gas in a combustion furnace.
[0008]
[Means for Solving the Problems]
In order to solve the above-described problems, in the present invention, the gas introduction port 12 for introducing exhaust gas generated when incinerating and burning various wastes and the like is provided at the top, and the gas outlet 12 for discharging exhaust gas after treatment. In the lower part, the adsorbed water mixed with the adsorbent is sprayed in the form of a shower to wash and cool the exhaust gas, drain the discharged liquid that dissolves harmful components to the outside, and guide the gas component downward An exhaust gas cleaning tower 10 having an appropriate number of stages of exhaust gas treatment mechanisms 20 to be separated and an exhaust gas cleaning tower 10 continuously installed in the exhaust gas cleaning tower 10 and washed with an adsorbed water liquid sprayed in a shower form, and then adsorbed A vapor removal mechanism 40 that removes harmful components and vapor components and exhausts them to the outside by a filter 61 containing an agent, and adsorbs harmful substances in the drainage discharged from the exhaust gas cleaning tower 10 and the vapor removal mechanism 40. is doing The evaporating water evaporated from the separation tanks 81 and 111 is cooled and converted into water droplets on the separation tanks 81 and 111, which remove the adsorbent and the like by the filters 95 and 112, thereby cleaning the drainage and the like. , 111 are provided with separation mechanisms 80, 110 provided with separation tank lids 101, 113 for refluxing.
The exhaust gas cleaning tower 10 is provided with a seizure prevention unit 13 that supplies and cools the cooled adsorbed water mixed with the adsorbent from the separation mechanism 80 at the gas inlet 11, and is adsorbed on the exhaust gas treatment mechanism 20. An injection supply mechanism 15 that injects the water liquid in a shower shape can be arranged.
The exhaust gas treatment mechanism 20 has an upper cylinder whose upper part is closed by a closing plate 23 on an upper skirt 22 that is gradually inclined downward as it reaches the outer periphery and is fixedly supported on the inner peripheral surface of the tower main body of the exhaust gas cleaning tower 10. 24, and an upper closing guide portion 21 formed with an outward upper flange guide 25 inclined downward around the closing plate 23, and fixed to the inner peripheral surface of the tower main body located below the upper flange guide 25 The lower flange guide 26 that is inwardly supported and the lower skirt 28 that is gradually inclined downward as it reaches the outer periphery and is fixedly supported on the inner peripheral surface of the tower body. A lower outflow guide portion 27 that is provided below the upper closing guide portion 21 and that forms a flow path 30 for exhaust gas between the upper closing guide portion 21 and the upper closing guide portion 21. A separating and dropping part 31 formed in the upper skirt 22 in the id part 21 and a drainage port 37 formed in the tower main body part which is an outer peripheral part of the lower skirt 28 in the lower outflow guide part 27 are provided. be able to.
The separation drop part 31 has a drop hole 32 formed in the peripheral part of the upper skirt 22, and a plurality of through holes 34 are opened and the outlet 35 is gradually narrowed as it goes downward. The inner wall 33 formed at the lower portion is continuously provided downward along the peripheral edge of the drop hole 32, and the outer wall 36 surrounds the inner wall 33 at an appropriate interval on the outer periphery of the inner wall 33. Can be configured to be continuously provided below the upper skirt 22.
The drainage port 37 is located at the peripheral edge of the lower skirt 28 in the lower outflow guide portion 27 and is formed in the side wall of the tower main body of the exhaust gas cleaning tower 10. The drainage pipe is piped outside the tower main body. 38, the lower half of the connection opening portion of the drainage pipe 38 can be configured to be set lower than the fixed portion of the lower skirt 28.
The steam removal mechanism 40 is continuously installed in the exhaust gas cleaning tower 10, and a container frame 41 into which an adsorbed water liquid mixed with an adsorbent is injected, and a cooling means disposed in the container frame 41. The exhaust passage 50 is formed in a meandering manner by being partitioned by 51, and the filter 61 is arranged in the exhaust passage 50 so as to be exchangeable and detachable and accommodates the adsorbent 64. be able to.
The cooling means 51 is formed below the inclined guide plate 47 formed immediately below the connection port 42 into which the gas component exhausted from the exhaust gas cleaning tower 10 flows, and on the front side that is the gas inflow side. The upper part is connected to the back surface of the guide plate 47 and the lower part is open between the bottom of the casing 41 and the upper part is between the guide plate 47 on the rear side which is the gas outflow part side. And a hollow lower wall 53 whose lower part is connected to the bottom of the instrument frame 41 and the upper and lower walls 52 and 53 that communicate with each other between the upper and lower walls 52 and 53 that are opposite to each other. The plurality of communication pipes 54 arranged in a line, the water supply port 55 provided at the bottom of the lower wall 53, and the supply outlet 56 provided at the upper part of the upper wall 52 can be configured.
The filter 61 is disposed so as to block the flow path at a predetermined position within the meandering exhaust flow path 50, can be formed corresponding to the cross-sectional shape of the flow path, and has a large number of through holes. A solid adsorbent 64 can be accommodated in a substantially flat filter box 63 that is perforated.
Separation mechanisms 80 and 110 separate and remove the adsorbent adsorbed harmful components in the exhaust gas, clean and cool the drainage and contaminated water, and replenish and dissolve the adsorbent to clean the exhaust gas. It can be configured such that it is supplied and injected again as an adsorbed water liquid into the tower 10 or the vapor removing mechanism 40. The separation mechanisms 80 and 110 overflow and remove floating pollutants in the drained and contaminated water, and remove harmful substances adsorbed on the adsorbent by the filters 95 and 112 to drain the liquid. Separation tanks 81 and 111 for cleaning the contaminated water liquid and the like, and the evaporating water evaporated from the separation tanks 81 and 111 are arranged on the separation tanks 81 and 111 so as to cool and form water droplets and return them to the separation tanks 81 and 111. The separated tank lids 101 and 113 can be configured.
The separation tank 81 (111) is provided with a bottom wall that is open at the top and serves as a downwardly inclined guide surface 83 that is continuous with a waste basin 84 that is inclined downward to a waste outlet 85 provided at the bottom. A tank container 82 partitioned in the input chamber 87 and the separation chamber 88 by the separation partition wall 86 opened, the overflow means 89 provided in the input chamber 87, and the separation chamber 88 are exchangeable and detachable. A filter 95 (112) in which the adsorbent is accommodated and a pumping pipe 96 for pumping clean water cleaned by the filter 95 (112) can be provided.
The separation tank lid 101 (113) has a cooling chamber 103 that is substantially flat and inclined on the upper wall of the box-shaped cover lid 102 having a lower opening that is larger than the upper opening portion of the separation tank 81 (111). Covering and covering the hollow cone-shaped shielding guide plate 106 having a bottom opening larger than the upper opening portion of the separation tank 81 (111) and having an upper opening smaller than the bottom opening. A reflux pipe 107 that is disposed in 102 and communicates with the separation tank 81 (111) corresponding to the low position of the shielding guide plate 106 can be connected.
[0009]
In the apparatus for removing harmful substances of exhaust gas in the combustion furnace according to the present invention configured as described above, exhaust gas generated by incineration / combustion of various wastes and the like is introduced into the exhaust gas cleaning tower 10 through the inlet 11. Then, while the smoke is washed and cooled by the adsorbed water liquid sprayed in the shower shape, the harmful components contained therein are dissolved and adsorbed by the adsorbent. In addition, the exhaust gas treatment mechanism 20 arranged in a step shape inside the exhaust gas cleaning tower 10 suppresses the downward fall so as to be blocked halfway, and the exhaust gas passes through the separation and drop portions 31 formed respectively. Increases the contact with harmful components therein to promote its dissolution, and separates its drainage, contaminated water and the like from gas components. At this time, harmful components and the like are dissolved in the adsorbed water liquid itself, adsorbed by the adsorbent mixed in the adsorbed water liquid, aggregated using the adsorbent as a nucleus, and discharged from the discharge port 37 as drained liquid or contaminated water. It is drained out of the exhaust gas cleaning tower 10.
In the vapor removal mechanism 40 into which the gas component exhausted from the exhaust gas cleaning tower 10 flows, the gas component containing the vapor component from the exhaust gas cleaning tower 10 is washed again with the adsorbed water liquid, and the residual in the exhaust gas is removed. Harmful components are dissolved and adsorbed and drained to the separation mechanism 110 through the drain port 45. On the other hand, the adsorbent 64 filled in the filter 61 adsorbs and removes harmful components remaining in the gas component as well as moisture by sequentially passing through the filter 61 when flowing in the exhaust passage 50 in the vapor removal mechanism 40. Then, when it is discharged from the exhaust flow path 50, it is cleaned, and the moisture content is greatly reduced and diffused to the atmosphere.
The filter 61 disposed in the exhaust passage 50 of the vapor removal mechanism 40 efficiently adsorbs harmful components and the like in the meandering exhaust passage 50. The adsorbent 64 and the like adsorbed and adsorbed with harmful components can be recovered by drying in the sun after washing, thereby facilitating maintenance.
Separation mechanisms 80 and 110 into which contaminated water discharged from the drainage port 37 of the exhaust gas cleaning tower 10 and the drainage port 45 of the vapor removal mechanism 40 are introduced remove tars floating in the separation tanks 81 and 111, respectively. In addition, the adsorbent that adsorbs harmful components and the like is precipitated, and the waste can be guided and aggregated to the waste outlet 85 side by the waste basin 84, and the melted processing can be made harmless by removing the accumulated sediment. Let
Further, the vapors evaporated in the separation tanks 81 and 111 are cooled and converted into water droplets by the separation tank lids 101 and 113, and are returned to the separation tanks 81 and 111. Precipitation of harmful components and the like by the separation mechanisms 80 and 110 is performed. The adsorbed water after removal is filtered and cleaned by the filters 95 and 112, and after refilling the adsorbent again, it is injected into the exhaust gas cleaning tower 10 via the injection supply mechanism 15 or into the vapor removal mechanism 40. Therefore, it is configured as a closed system that does not drain out of the apparatus.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described below with reference to the drawings. Reference numeral 1 shown in the figure denotes waste oil, general waste such as garbage and garbage, industrial waste such as plastic, rubber, and metal. Combustion furnaces such as incinerators installed to incinerate various wastes, boilers in various factories, combustion furnaces in thermal power plants and other combustion devices. The exhaust gas generated in the combustion furnace 1 is exhausted into the exhaust gas cleaning tower 10 via the flue gas passage 2, and is cleaned and cooled by the adsorbed water liquid injected and supplied in the exhaust gas cleaning tower 10, and in the exhaust gas. The harmful substances contained in the water are removed by the adsorbent dissolved and mixed in the adsorbed water solution, and are further dehumidified and released into the atmosphere. The combustion furnace 1 may be any of existing various incineration facilities, incinerators, combustion devices, etc. that incinerate various wastes or burn fuel, etc., without improving them. The apparatus of the present invention can be used in practice.
[0011]
The exhaust gas cleaning tower 10 introduces the exhaust gas exhausted from the combustion furnace 1 from above, cleans or smokes the exhaust gas with the adsorbed water liquid while reaching the lower part, and rapidly cools it by the cooling action thereby, While adsorbing adsorbents dissolved in the adsorbed water, for example, adsorbents made of powdered Ioishi, which will be described later, adsorb harmful components in the exhaust gas, the adsorbed / contaminated adsorbed water is drained. When draining as polluted water or the like, harmful components are adsorbed, the agglomerated adsorbent is separated and removed, and vapor components are removed from the exhausted exhaust gas and exhausted.
[0012]
That is, the exhaust gas cleaning tower 10 has a gas introduction port 11 for introducing exhaust gas from the combustion furnace 1 at the upper part, injecting an adsorbed water solution mixed with an adsorbent to dissolve harmful components in the exhaust gas, The exhaust gas processing mechanism 20 for separating the waste liquid / polluted water liquid dissolving the harmful components from the exhaust gas, draining the drain liquid and the like, and exhausting the exhaust gas is disposed inside the exhaust gas processing mechanism 20 in an appropriate number of stages vertically. It has a gas outlet 12 for exhausting the water at the bottom. The exhaust gas cleaning tower 10 itself has a substantially watertight structure and is surrounded by a surrounding wall, for example, in the shape of a hollow cylinder, and is supported and formed in a tower shape along the vertical direction by an appropriate support means such as a support material. The upper part where the introduction port 11 is formed gradually increases in diameter as it goes downward, and continues to the tower main body. The gas introduction mechanism continues to the steam removing mechanism 40 disposed below the tower main body. The lower part where the outlet 12 is formed has a gradually smaller diameter as it goes downward.
[0013]
As shown in FIGS. 2 and 3, the surrounding wall of the gas inlet 11 is cleaned by a separation mechanism 80, which will be described later, and the adsorbent is dissolved and mixed in water such as tap water newly supplied and replenished. By supplying the adsorbed water liquid in a state, it is formed as a seizure preventing portion 13 that cools to prevent seizure by the exhaust gas in a high temperature state. Further, the adsorbed water liquid supplied to the seizure prevention unit 13 is sprayed into the tower main body from the injection hole 14 opened at the bottom of the seizure prevention unit 13 itself, so that the exhaust gas is washed. It is also used for the adsorption of harmful components.
[0014]
The injection supply mechanism 15 for injecting the adsorbed water liquid into the exhaust gas cleaning tower 10 is adsorbed water in which the adsorbent is dissolved and mixed in tap water or the like newly supplied and replenished by a separation mechanism 80 described later. The liquid is ejected in the form of a shower. In the figure, at the uppermost position located directly below the gas inlet 11, at a position between the upper flange guide 25 and the lower flange guide 26 of the upper closing guide portion 21 in the exhaust gas treatment mechanism 20 described later, The nozzles 16 are arranged so as to face downward and directly above the separating / dropping portion 31 so as to inject at a predetermined pressure via a pump. The exhaust gas treatment mechanism 20 has a two-stage configuration at the top and bottom, so that the nozzles 16 are arranged in a total of five stages.
[0015]
The exhaust gas treatment mechanism 20 is arranged and configured in two vertical stages in the vertical direction of the exhaust gas cleaning tower 10 in relation to the shower-like injection part by the injection supply mechanism 15 of the adsorbed water liquid in which the adsorbent is mixed. In addition, a single-stage configuration corresponding to the concentration of harmful components of exhaust gas to be treated, gas amount, and the like, and a multi-stage configuration of three or more stages can be arbitrarily set, and each is almost the same. It is as a component.
[0016]
As shown in FIG. 2, the exhaust gas treatment mechanism 20 itself is gradually inclined downward as it reaches the outer periphery, and is formed on a donut plate-like upper skirt 22 fixedly supported on the inner peripheral surface of the tower body, and the upper portion is a blocking plate 23. The upper cylinder guide 24 closed by the upper part and the upper closing guide part 21 forming the donut plate-like outward upper flange guide 25 inclined downward around the closing plate 23, and the lower part of the upper flange guide 25 And a downwardly inclined donut plate-shaped inwardly facing lower flange guide 26 fixedly supported on the inner peripheral surface of the tower main body, and fixedly supported on the inner peripheral surface of the tower main body by inclining gradually toward the outer periphery. A lower cylinder 29 having an open top is connected to the donut plate-like lower skirt 28 and is disposed below the upper closing guide portion 21 so as to remove gas from the upper closing guide portion 21. A lower outflow guide portion 27 forming a minute flow path 30, a separation / falling portion 31 formed in the upper skirt 22 in the upper closing guide portion 21, and an outer peripheral portion of the lower skirt 28 in the lower outflow guide portion 27. A drainage port 37 having an opening formed in a tower main body is provided.
[0017]
That is, the adsorbed water in which the adsorbent injected and supplied to the exhaust gas introduced from the gas introduction port 11 is mixed with the upper closing guide portion 21 and the lower outflow guide portion 27 which are formed in a double cylindrical arrangement. The liquid is separated evenly with the flow path structure in the exhaust gas treatment mechanism 20 itself so as to be mixed with the exhaust liquid and the exhaust gas component in which harmful components in the exhaust gas are dissolved. The vapor removal mechanism 40 and the separation mechanism 80 are led out. The upper closing guide portion 21, the lower outflow guide portion 27, the lower flange guide 26, the separation / falling portion 31 and the like are preferably formed of a material considering corrosion resistance and the like, and harmful components in the exhaust gas are dissolved. It should be sufficiently protected from the corrosive action of drained liquid, contaminated water, etc.
[0018]
The upper closing guide portion 21 itself disperses the exhaust gas introduced from the gas introduction port 11 on the outer peripheral side in the tower main body and guides it downward along the inner side of the tower main body, and this upper skirt 22 along the upper surface of the upper skirt 22. 22 is guided to each of the separating and dropping portions 31 arranged and formed in a distributed form around the periphery. Note that the inner diameter of the lower flange guide 26 is slightly larger than the outer diameter of the upper flange guide 25 in the upper closing guide portion 21, so that the exhaust gas dispersed around by the closing plate 23 is caused by the upper flange guide 25 and the lower flange. Each guide 26 is smoothly guided downward.
[0019]
On the other hand, the lower skirt 28 in the lower outflow guide portion 27 itself is substantially parallel to and below the upper skirt 22 in the upper closing guide portion 21, and the lower cylinder 29 has a smaller diameter than the upper cylinder 24 in the upper closing guide portion 21. Each of them is disposed inward, and a gap portion between them serves as a flow path 30 that guides the exhaust gas so as to reach the upper opening of the lower cylinder 29.
[0020]
As shown in FIG. 4, the separating and dropping portions 31 are arranged and arranged at almost equal intervals around the upper skirt 22, for example, at eight locations, and have inner and outer walls that are substantially semicircular when viewed from above. It has a double structure. That is, as shown in FIGS. 2 and 5, a substantially semicircular drop hole 32 is formed at the peripheral edge of the upper skirt 22, and a large number of through holes 34 are opened and as it goes downward. An inner wall 33 having a substantially semicircular shape in the cross section in which the outlet 35 is formed so as to be gradually narrowed is provided along the peripheral edge of the drop hole 32 below the upper skirt 22 itself. An outer wall 36 surrounding the inner side wall 33 with an appropriate interval is provided on the outer periphery of the 33 and is continuously provided below the upper skirt 22. In such a separation / falling portion 31, the exhaust gas washed with the adsorbed water liquid is dropped from the constricted outlet 35, and the through-hole of the inner wall 33 has a large fall / outflow resistance due to the outlet 35. After being discharged to the outside of the inner wall 33 through 34, it is also dropped along the inner surface of the outer wall 36. The outflow resistance generated during this period increases the contact action of the adsorbent with harmful components in the exhaust gas. It is.
[0021]
The drainage ports 37 are located at the peripheral edge of the lower skirt 28 in the lower outflow guide portion 27, and are formed at the side wall of the tower body corresponding to the positions of the separating and dropping portions 31 in total, for example, at eight equal intervals. ing. As shown in FIG. 6, the lower half of the connection opening portion of the drainage pipe 38 is compared with the fixed part of the lower skirt 28 in the communication connection portion with the drainage pipe 38 piped outside the tower body. Since the step structure is set at the lower side, the shower drainage falling from the separation / falling portion 31 onto the lower skirt 28 is prevented from staying on the lower skirt 28 and is discharged smoothly. is there.
[0022]
In the figure, the exhaust gas treatment mechanism 20 has a two-stage configuration in the upper and lower sides, and the upper and lower stages are configured and arranged substantially the same, and the lower outflow guide portion 27 in the upper stage is formed. Since the closing plate 23 of the upper closing guide portion 21 in the lower stage is positioned directly below the lower cylinder 29, the exhaust gas descending from the upper closing guide portion 21 side is dispersed again on the peripheral side.
[0023]
In the exhaust gas treatment mechanism 20 configured as described above, the exhaust gas introduced from the gas inlet 11 is cooled by the seizure prevention unit 13 and cooled and washed by the adsorbed water liquid sprayed in a shower form from the injection supply mechanism 15. It is smoked and the adsorbed water is supposed to be vaporized. Thereafter, the upper and lower exhaust gas treatment mechanisms 20 increase the contact action between the adsorbent in the adsorbed water liquid and the harmful components in the exhaust gas, so that the harmful components in the exhaust gas are adsorbed by the adsorbent, and the discharged liquid and contaminated water liquid The exhaust gas component containing the remaining steam, which is drained from the drainage port 37 in the separation / falling section 31 as well as the exhausting action by the exhauster 68 described later, is discharged from the gas outlet 12 to the exhaust gas cleaning tower 10. It is exhausted to the steam removal mechanism 40 installed below.
[0024]
The steam removal mechanism 40 is integrally installed in a substantially box structure below the exhaust gas cleaning tower 10 and connected to the gas outlet 12 of the exhaust gas cleaning tower 10, and adsorbed water injected into the exhaust gas in a shower shape. After smoking with the liquid, harmful components and vapor components are removed by the filter 61 containing the adsorbent, so that the moisture content is greatly reduced and the exhaust is exhausted to the outside (FIG. 1). reference). As shown in FIGS. 7 to 9, the vapor removal mechanism 40 includes a container frame 41 formed in a substantially box shape integrally with the exhaust gas cleaning tower 10, and a cooling means 51 disposed in the container frame 41. The exhaust passage 50 formed in a meandering manner by being partitioned and the filters 61 distributed in the exhaust passage 50 are provided.
[0025]
The casing 41 has a connection port 42 connected to the gas outlet 12 in the exhaust gas cleaning tower 10 at the top, and an exhaust port 43 for exhausting the cleaned gas component at the side. For example, a double open / close door 44 for opening and closing the exchange port for allowing the water to be exchanged is provided on the front side, and a drainage groove 46 having an inclined bowl shape communicating with the drainage port 45 opened at the bottom is provided. Although the connection port 42 is opened at the upper part of the device frame 41, the gas component flowing in from the connection port 42 is one side of the device frame 41 by an inclined guide plate 47 formed immediately below the connection port 42. It is designed to be guided down to the front side which is the side wall. Further, the drainage port 45 is connected to a separation mechanism 110 which will be described later. The separation mechanism 110 removes harmful components contained in the drainage liquid, and the cooled and replenished adsorbed water liquid is supplied from a shower nozzle 49 which will be described later. The gas is again injected and circulated in the exhaust passage 50.
[0026]
In the illustrated example, the cooling means 51 that forms the exhaust flow path 50 is alternately opened at the upper and lower sides so that it is meandered in the vertical direction between the gas inflow portion and the gas outflow portion in the casing 41. They are arranged in pairs in the front and rear as constituting the partition wall, and in some cases, it can be arranged in one or more than three. That is, on the front side which is the gas inflow part side, the upper part is connected to the back surface of the guide plate 47 and the lower part is the hollow upper wall 52 opened between the bottom of the instrument frame 41 and the gas outflow part side. On the rear side, the upper part is opened between the guide plate 47 and the lower part is connected to the bottom part of the container frame 41, and between the upper and lower parts walls 52, 53 which are opposed to each other. The upper and lower walls 52 and 53 communicate with the upper and lower walls 52 and 53, respectively, and a plurality of communication pipes 54 arranged in a substantially horizontal direction, a water supply port 55 provided at the bottom of the lower wall 53, and a water supply provided above the upper wall 52. The outlet 56 is constituted. The interiors of the upper wall 52, the lower wall 53, the communication pipe 54, and the like are formed in a watertight manner, and cooled adsorbed water from a cooling mechanism 70, which will be described later, is supplied from a water supply port 55 below the device frame 41. The water is drained to the outside through the lower wall 53, the communication pipe 54, and the upper wall 52 from the supply port 56 at the upper part of the instrument frame 41. In addition, as shown in FIG. 7, the cooling means 51 is paired with a predetermined distance between the lower wall 53 on the front position side and the upper wall 52 on the rear position side before and after the casing 41. The gas component that is disposed and flows in from the connection port 42 is lowered by the guide plate 47 along the upper wall 52 of the cooling means 51 on the front position side, passes through an open portion below the upper wall 52, and passes through the upper wall 52. Ascends between the communication pipes 54 between the lower walls 53, passes through an open portion above the lower wall 53, and descends again in the gap between the front and rear cooling means 51. The same applies to the cooling means 51 on the rear position side. Thus, the exhaust gas is exhausted from the exhaust port 43 formed at the rear of the container frame 41, and the meandering path along the vertical direction is the exhaust flow path 50. It is to be noted that a gas component is washed on the upper wall of the casing 41 which is an upper portion of the gap between the upper wall 52 and the front wall of the casing 41 in the inlet portion of the exhaust passage 50, that is, the cooling means 51 on the front side. A shower nozzle 49 for adsorbed water is provided facing downward.
[0027]
Further, as shown in FIG. 7, for example, the filter 61 is provided on, for example, the communication pipe 54 and the left and right sides in the exhaust flow path 50 so as to block the flow path at a predetermined position in the exhaust flow path 50 that is meandered. It arrange | positions on the provided support material 62, respectively, and is formed corresponding to the flow-path cross-sectional shape. As shown in FIG. 9, the filter 61 itself is a flat filter box 63 made of a so-called punching board having a large number of through holes and a solid adsorbent 64 such as pebbles or lumps accommodated therein. In addition, the filter box 63 itself is provided with a lid 65 made of a punching board that can be opened and closed to replace or replenish the adsorbent 64.
[0028]
Further, an exhaust pipe 66 communicating with an exhaust fan 68 and an exhaust chimney 69 is connected to the exhaust port 43 of the steam removal mechanism 40, and the exhaust pipe 66 can be freely opened and closed to adjust the exhaust air volume. A damper 67 is provided.
[0029]
The cooling mechanism 70 includes a water supply pipe 72 and a supply pipe 73 connected to the water supply port 55 and the supply outlet 56 in the cooling means 51, and a pump 74 provided in any of the water supply pipe 72 and the supply pipe 73. If necessary, a filter 75 similar to the filter 61 in the vapor removal mechanism 40 can be exchanged / removed, and a cooling water tank 71 provided therein and cooling water can be cooled and circulated by heat exchange. The chiller unit 76 is provided. The cooling mechanism 70 may be separately arranged and configured to correspond to the cooling means 51 arranged in the casing 41, or may be configured as a single unit in a combined form.
[0030]
On the other hand, the drainage liquid drained from the drainage port 37 of the separation and dropping part 31 of the exhaust gas treatment mechanism 20 in the exhaust gas cleaning tower 10, the contaminated water liquid drained from the drainage port 45 in the vapor removal mechanism 40, etc. 80 (110) separates and removes the adsorbent that has adsorbed harmful components in the exhaust gas, cleans and cools the drainage, contaminated water, etc., and replenishes and dissolves the adsorbent. By being replenished with tap water or the like, the adsorbed water liquid is supplied and injected again into the exhaust gas cleaning tower 10 or the steam removing mechanism 40. The separation mechanism 80 (110) overflows and removes suspended pollutants in the drained and contaminated water, and removes harmful substances adsorbed on the adsorbent by the filter 95 (112). The separation tank 81 (111) that cleans the contaminated water liquid, and the separation tank 81 (111) so that the evaporated water evaporated from the separation tank 81 (111) is cooled, converted into water droplets and recirculated to the separation tank 81 (111). ) And the separation tank lid 101 (113) arranged on the top. The separation mechanism 80 that cleans the waste liquid from the exhaust gas cleaning tower 10 and the separation mechanism 110 that cleans the contaminated water from the steam removal mechanism 40 have substantially the same configuration, and thus detailed description thereof will be given. Is described by the separation mechanism 80 as follows.
[0031]
That is, as shown in FIG. 10, the separation tank 81 is made of a non-metallic material and is made of a material that can withstand oxidation, such as reinforced vinyl chloride resin, FRP, etc., and the upper part is opened and inclined downward to a disposal port 85 provided at the bottom. The bottom wall has a bottom inclined guide surface 83 that is continuous with the groove-shaped waste bin 84, and is divided into an input chamber 87 and a separation chamber 88 by a separation partition wall 86 having an opening on the bottom wall side. The tank container 82, the overflow means 89 provided in the input chamber 87, the filter 95 disposed in the separation chamber 88 so as to be exchangeable and detachable, and the pumping up to recycle the clean water cleaned by the filter 95 And a tube 96.
[0032]
The tank container 82 itself is configured as a water tank having a substantially rectangular shape when viewed from the upper open plane. As shown in the figure, the bottom portion is narrowed by a guide surface 83 that is gently inclined downward from both sides toward the center. It is formed in a circle and is continuous with a waste bin 84 formed in the approximate center of the bottom wall. That is, the adsorbent and other contaminants that are separated in the tank container 82 and are adsorbed and agglomerated and solidified by adsorbing harmful substances are guided to the upper surface of the guide surface 83 and stored in the waste bin 84. It is removed and discarded from the disposal port 85 provided in the disposal basket 84. Further, the separation partition wall 86 is fixed inside the tank container 82 at a position where the tank container 82 is partitioned at a ratio of approximately 1: 3, for example, between the input chamber 87 and the separation chamber 88. Is once stored in the input chamber 87 and then flows out from the open portion below the separation partition wall 86 into the separation chamber 88.
[0033]
The overflow means 89 is formed as an overflow port opened in the side wall of the tank container 82 at an appropriate height position in the input chamber 87, and a discharge portion 91 for guiding and removing the overflow component to the outside is continuously provided in the overflow port. It is. By this overflow means 89, the drainage, carbon oil floating on the contaminated water surface, tar content and the like are overflowed to be removed from the discharge portion 91 to the outside.
[0034]
In addition, the filter 95 is exchanged via an appropriate support member (not shown) with one or a plurality of, for example, three at a predetermined interval in a state of being substantially orthogonal to the guide surface 83 of the inclined bottom wall. It is detachably disposed in the separation chamber 88 so as to be substantially in a standing shape by being substantially orthogonal to the inclined guide surface 83. The filter 95 itself has a configuration substantially similar to that of the filter 61 in the vapor removal mechanism 40 so that it can be used in common with them.
[0035]
The pumping pipe 96 supplies the clean water purified in the separation chamber 88 to the seizure prevention unit 13 and the injection supply mechanism 15 in the exhaust gas cleaning tower 10, and the pumping port is located near the bottom on the rear side in the separation chamber 88. Is connected to a pump 97 that supplies the exhaust gas cleaning tower 10 side.
[0036]
In this separation tank 81, an adsorbent for introducing an adsorbent into the input chamber 87 and further into the separation chamber 88 so as to replenish the adsorbent removed as a result of adsorbing and contaminating harmful substances. Input means 98 is attached. Further, for example, tap water is supplied to the separation chamber 88 or the input chamber 87 so that the high temperature drainage and contaminated water supplied to the input chamber 87 are cooled, and at the same time, the adsorbed water lost by evaporation of these is replenished. The water supply means 99 which supplies the water is attached.
[0037]
On the other hand, the separation tank lid 101 is disposed and formed so as to cover the upper opening portion of the separation tank 81, and specifically, a box-shaped covering lid 102 having a lower opening larger than the upper opening portion of the tank container 82. A cooling chamber 103 that is substantially flat and inclined and is filled with cooling water is formed on the upper wall, and a bottom opening that is larger than the upper opening portion of the tank container 82 is also compared with the bottom opening. A hollow cone-shaped shielding guide plate 106 having a small upper opening is covered and disposed in the lid 102, and a reflux pipe 107 communicating with the shielding guide plate 106 is connected corresponding to the low position of the cooling chamber 103. Is.
[0038]
The cover lid 102 itself is a little larger than the upper opening of the tank container 82, for example, has a substantially rectangular shape on a plane, and is arranged slightly above the height position of the upper opening of the tank container 82. Has been. The cooling chamber 103 is formed by making the inclined ceiling wall itself of the cover lid 102 into a watertight shape with a predetermined volume of air gap. The water supply port 104 is at a low position and the water supply port 105 is at a high position. The cooling water cooled by the cooling means described later is circulated and supplied.
[0039]
The shielding guide plate 106 is inclinedly disposed along the inclined surface of the cooling chamber 103 in the cover lid 102 so as to cover the entire lower opening at the bottom of the cover lid 102. Then, the vapor component evaporating from the tank container 82 is guided to the upper opening along the bottom surface of the inclined wall of the cone-shaped surface, and the vapor component hits the bottom surface of the cooling chamber 103 through the upper opening to be cooled, converted into water droplets and dropped. Later, it is made to flow along the upper surface of its inclined wall and guided to the reflux pipe 107 located at a low position.
[0040]
The water droplets guided and collected from the shielding guide plate 106 flow into the reflux pipe 107 which is opened and connected to the lower position on the shielding guide plate 106 and flows into the tank container 82 disposed below the separation tank lid 101. To fall naturally.
[0041]
The cooling water supplied into the cooling chamber 103 is cooled and circulated by a cooling mechanism 70 configured in the same manner as the cooling mechanism 70 in the steam removal mechanism 40, and the detailed description thereof is the same in the drawings. Omitted by adding a reference numeral.
[0042]
Further, the separation mechanism 110 attached to and connected to the vapor removal mechanism 40 is configured in substantially the same manner as the separation mechanism 80 described above. The separation mechanism 110 in the vapor removal mechanism 40 is discharged from the drainage opening 45 formed in the container frame 41. Liquid or the like is introduced through the tank 114 and the pump 115, the floating pollutant in the introduced drainage is overflowed and removed, and harmful substances adsorbed by the adsorbent are removed by the filter 112 to remove the drainage and the like. It consists of a separation tank 111 to be cleaned, and a separation tank lid 113 disposed on the separation tank 111 so that the evaporated water evaporated from the separation tank 111 is cooled, converted into water droplets and recirculated to the separation tank 111. The clean water in the tank 111 is supplied to the shower nozzle 49 of the vapor removal mechanism 40 by the pumping pipe 116 and is injected into the exhaust passage 50. That. Since the configuration of the separation mechanism 110 is substantially the same as that of the above-described separation mechanism 80, detailed description thereof is omitted, and the configuration of the cooling means in the separation mechanism 110 is as shown in the drawing. Although the piping is configured to be cooled by the cooling means 70 in the above, in some cases, each cooling configuration can be configured separately.
[0043]
Thus, the adsorbent dissolved and mixed in the adsorbed water solution and the solid adsorbent 64 filled in the filter 61 (75, 95) are each a medicine in the suburbs of Kanazawa City, which is the border between Ishikawa Prefecture and Toyama Prefecture. Crushing rocks with the scientific name of quartz diorite (so-called “Io-Seki” / green tough / mineral ore called “Pegasus”) produced around the Koishiike, which is the foothills of the Ozen mountain range. Then, it is planned to use a powder, a lump or granule, etc., and the components are as shown in Table 1 according to the analysis by the Ministry of International Trade and Industry.
[0044]
[Table 1]

That is, the above-mentioned adsorbent (64) used in the present embodiment of the present invention is roughly composed of three bases. The first one is a seabed stone of a seabed uplift called a green. The second is a volcanic glass ore called black, and the third is a fossil shellfish fossil that has passed hundreds of millions of years, and the various effects produced by combining these three bases of pure natural composition are measured. Some of them are unknown and contain rare elements that are said to be essential for various life forms that cannot be clarified by current scientific analysis capabilities.
[0045]
The change in hydrogen ion concentration caused by immersing 10 g of this adsorbent in 100 ml of distilled water was 6.1 immediately after 7.4, 7.4 after 8 hours, 7.4 after 24 hours, and 7.4 after 48 hours. Met.
[0046]
Moreover, when the adsorbent and the barley stone are compared with each other, the adsorbing performance of the pollutants is as shown in Table 2, and 50 g of each of the adsorbent and barley stone is put into 500 ml of a solution having a mercury content of 0.01 wt ppm. The change over time in the mercury content was measured.
[0047]
[Table 2]

Furthermore, the adsorption performance of hexavalent chromium in this adsorbent and activated carbon is as shown in Table 3. This is a comparative example in which different adsorbents and activated carbon have different weight percentages, and a test solution of 1.67 mg / l is used. It is what was used.
[0048]
[Table 3]

In addition, the decomposition and adsorption performance of toxic heavy metals and pesticide organic chlorine in this adsorbent is as shown in Table 4, which shows the change over time after the adsorbent was introduced into 100 ml of water in which various drins were melted. It is.
[0049]
[Table 4]

The treatment effect of the heavy metal Cd (cadmium) aqueous solution is as shown in Table 5, which is obtained by adding Ca (CH _Three COO) ₂ 2H ₂ The change with time after adding the adsorbent to the aqueous solution with Cd of 1.15 ppm by adding O is shown.
[0050]
[Table 5]

According to this, it was confirmed that the cadmium concentration of 1.15 decreased nearly 60% when 1 day passed, and decreased to 1/6 after 2 days. In addition, ammonia, nitrite and other chlorine, free It was confirmed that compounds such as basic chlorine, cyan, and anone have a treatment effect, and harmful substances such as PCBs and dioxins were also shown to exhibit the same adsorption treatment action.
[0051]
Next, in the embodiment configured as described above, a case where exhaust gas containing various harmful components, dust, etc. generated in the combustion furnace 1 for waste incineration, various fuel combustion, etc. is treated. To explain, when exhaust gas is introduced from the combustion furnace 1 into the exhaust gas cleaning tower 10 through the gas introduction port 11 at the upper part thereof, the negative pressure in the exhaust gas cleaning tower 10 due to the exhausting action of the exhaust fan 68 is combined with dust, etc. Is washed down and cooled by the adsorbed water liquid mixed with the adsorbent sprayed from the injection supply mechanism 15 in the form of a shower, and the exhaust gas treatment mechanism 20 is arranged in two upper and lower stages. The harmful component in the exhaust gas comes into contact with the adsorbent in the adsorbed water liquid, and the discharged liquid / contaminated water liquid and the like in which the harmful component is dissolved and adsorbed are discharged to the separation mechanism 80 through the drain pipe 38. In other words, the adsorbent, which is a powdered quartz diorite mixed in the adsorbed water, adsorbs PCBs, dioxins, etc., which are harmful substances in the exhaust gas, and the adsorbed water itself is dioxins, chlorine, etc. Is dissolved and discharged as a effluent and drained from the drainage port 37 in the exhaust gas treatment mechanism 20 to the separation mechanism 80.
[0052]
In particular, the exhaust liquid after the harmful components in the exhaust gas are adsorbed and removed by the adsorbed water liquid in the exhaust gas cleaning tower 10 is discharged from the exhaust port 37 to the outside of the exhaust gas cleaning tower 10 by the separation and dropping unit 31 in the exhaust gas treatment mechanism 20. The gas components are guided and discharged, and are separated from the waste liquid by filling the lower part in the exhaust gas cleaning tower 10 through the flow path 30 in the separation / falling section 31, and the vapor removal mechanism 40 through the gas outlet 12. Introduced in. In this exhaust gas cleaning tower 10, the temperature of the exhaust gas at the gas inlet 11 was 700 to 800 ° C, but the temperature of the exhaust gas at the gas outlet 12 was rapidly cooled to 70 to 80 ° C. It is.
[0053]
The exhaust gas introduced into the steam removing mechanism 40 is cooled and washed again by the adsorbed water liquid sprayed from the shower nozzle 49 in the form of a shower. The remaining harmful components and the like are adsorbed and discharged as polluted waste water. 45, while being discharged to the separation mechanism 110, the gas component flows in a meandering manner in the exhaust passage 50 due to the negative pressure in the steam removal mechanism 40 due to the exhaust action of the exhaust fan 68, and a filter along the flow. By sequentially passing through each of the 61, harmful components and the like are adsorbed and removed by the adsorbent 64 in the filter 61 and become clean and released to the atmosphere through the exhaust chimney 69. The filter 61 in the vapor removal mechanism 40 is taken out of the vapor removal mechanism 40 by opening and closing the opening / closing door 44 at an appropriate time, for example, after being washed in the separation tanks 81 and 111 in the separation mechanisms 80 and 110. Recover the adsorbing capacity by drying with sun or the like and reuse it.
[0054]
On the other hand, the adsorbed waste liquid, the contaminated water liquid, etc. containing the adsorbent component adsorbed by the harmful components discharged from the exhaust gas cleaning tower 10 and the vapor removal mechanism 40 are separated in the separation tank 81 in the separation mechanisms 80 and 110. , 111, the floating components such as carbon and tar are removed by overflow, the adsorbent component is precipitated, and the precipitate is removed from the waste outlet 85 and melted in, for example, a high-temperature melting furnace. It is processed into slag. Further, the separation tanks 81 and 111 are filtered and cleaned by filters 95 and 112, further cooled, replenished with an adsorbent, and added to the anti-seizure portion 13 of the exhaust gas cleaning tower 10, the injection supply mechanism 15, and the vapor removal mechanism. The pressure is supplied to 40 shower nozzles 49 and circulated so as to be used again as an adsorbed water solution.
[0055]
Table 6 shows measured data of harmful components in the exhaust gas before and after the treatment of the exhaust gas when the removal apparatus in the embodiment described above is implemented. According to this, 700 to 800 ° C. exhaust gas is rapidly cooled to 60 to 70 ° C., so that dioxins are not generated during the cleaning and processing, and even if it is generated, it is adsorbed and removed by the adsorbent. It is. It has been clarified that most of the dioxins considered particularly harmful have been removed and the hydrogen chloride concentration has been reduced to about 1/10. Usually, in the case of the water-cooling method, the amount of water in the exhaust gas increases, so that dioxins are mixed with the water and discharged, and at 70 ° C. or lower, they are not regenerated.
[Table 6]

[0056]
【The invention's effect】
The present invention is configured as described above, and is therefore an exhaust gas generated by incineration, combustion, etc. of various wastes even in combustion furnaces, incinerators, etc. that are currently releasing various harmful substances. By removing and adsorbing harmful components contained in soot and smoke, it can be released into the atmosphere in a clean state. In addition, harmful components adsorbed by the adsorbent mixed in the adsorbed water can be easily separated from the drainage, and they are melted at high temperature to form harmless slag to make bricks and other civil engineering and construction materials, etc. It can be reused as an environmental protection, and the conservation of the global environment and the effective use of resources can be achieved. In addition, incineration, exhaust gas emission after incineration, dioxins from this exhaust gas, harmful components such as chlorine, as well as adsorption removal of carbon dioxide etc., which is a cause of global warming, separation after adsorption and other treatments Either can be a blockage treatment system that is blocked from the outside, does not pollute the surrounding environment, does not require a final disposal site such as landfill, and safely treats it without causing secondary pollution Can do it.
[0057]
That is, in the present invention, the gas inlet 11 for introducing the exhaust gas is provided at the upper part, and the gas outlet 12 for discharging the treated exhaust gas is provided at the lower part, and the adsorbed water is injected to wash and cool the exhaust gas. The exhaust gas cleaning tower 10 is formed by disposing the exhaust gas to the outside and the exhaust gas treatment mechanism 20 that guides and separates the gas components downward, and is continuously installed in the exhaust gas cleaning tower 10. After the smoke washing, the filter 61 removes harmful components and vapor components and exhausts them to the outside, and the adsorbent content in the drainage discharged from the exhaust gas cleaning tower 10 and the vapor removal mechanism 40 is filtered by the filter 95. , 112 is used to cool the evaporated water evaporating from the separation tanks 81, 111 on the separation tanks 81, 111, which removes the drainage liquid etc. This is because the separation mechanisms 80 and 110 having the separation tank lids 101 and 113 to be refluxed are provided, thereby removing, for example, dioxins and other harmful substances generated after incineration, and emission of clean exhaust gas. Thus, the safety of the drainage treatment that is a closed system, the detoxification by the melting treatment of the adsorbent that aggregates the harmful substances, and the like can be achieved.
[0058]
Further, the exhaust gas cleaning tower 10 into which exhaust gas generated by incineration / combustion of various wastes or the like is introduced is provided with a seizure prevention unit 13 to which the cooled adsorbed water liquid from the separation mechanism 80 is supplied at the gas inlet 11. In addition, since an injection supply mechanism 15 for injecting the adsorbed water liquid in a shower shape is arranged on the exhaust gas treatment mechanism 20, the exhaust gas introduced from the gas inlet 11 is rapidly cooled, smoke washed, and rapidly cooled. This reduces the generation of dioxins even if the exhaust gas contains a benzene ring, a chlorine component, etc., and even if it is generated, it is adsorbed by the adsorbent and used as a drainage / contaminated water vapor removal mechanism 40, separation mechanism The post-processing of detoxification is performed by 80, 110 or the like.
[0059]
In addition, since the exhaust gas cleaning tower 10 that performs cleaning with the adsorbed water of the exhaust gas is integrally provided with the exhaust gas cleaning tower 10 and the vapor removal mechanism 40 that removes and separates moisture from the exhaust gas is continuously disposed, As a whole, it is integrated as a compact unit, which can reduce the installation area and can be operated at low cost.
[0060]
In addition, the exhaust gas treatment mechanism 20 disposed in the exhaust gas cleaning tower 10 includes an upper cylinder 24 that is continuously closed by an upper plate 22 and an upper flange guide 25 around the block plate 23. The upper closing guide portion 21, the lower flange guide 26 provided below the upper flange guide 25, and the lower cylinder 29 having an upper portion opened to the lower skirt 28 are continuously provided. A lower outflow guide portion 27 that is disposed below and forms a flow path 30 for exhaust gas between the upper closing guide portion 21 and a separation and dropping portion 31 that is formed in the upper skirt 22 of the upper closing guide portion 21. Therefore, the exhaust gas introduced from the gas introduction port 11 suddenly falls downward as a meandering form in the vertical direction in the exhaust gas cleaning tower 10. In combination with the flow resistance that flows from the outer peripheral side to the inner peripheral side, it makes the contact with the adsorbed water liquid injected from the injection supply mechanism 15 extremely efficient, and removes harmful components in the exhaust gas. Adsorb.
[0061]
In addition, the separation and dropping portion 31 in the exhaust gas treatment mechanism 20 is configured such that a large number of through holes 34 are opened in the dropping hole 32 formed in the upper skirt 22 and gradually narrows as it goes downward. Since it has a double structure of an inner wall 33 having an outlet 35 formed in the lower part and an outer wall 36 disposed on the outer periphery of the inner wall 33, the flow resistance of the exhaust gas is increased to As a result, the adsorbent is agglomerated with the adsorbent as a nucleus. In addition, the drainage / contaminated water in which harmful components are dissolved is separated from the gas component from which it has been removed, and the drainage / contaminated water etc. is drained in a stepped structure formed in association with the lower skirt 28. While being discharged from the exhaust gas cleaning tower 10 without being retained from the port 37, the gas component is guided inside the exhaust gas treatment mechanism 20 and guided down to the gas outlet 12 below the exhaust gas treatment mechanism 20. is there.
[0062]
Further, the vapor removing mechanism 40 for processing the gas component exhausted from the exhaust gas cleaning tower 10 is disposed in an exhaust passage 50 formed in a meandering manner by a cooling means 51 disposed in a device frame 41 continuous with the exhaust gas cleaning tower 10. Since the filter 61 is dispersed and detachably distributed, the adsorbed water in the filter 61 is further cooled and smoke-washed by the adsorbed water liquid injected into the container frame 41 to flow in a meandering manner. The contact with the agent 64 is increased, and harmful components remaining in the gas component as well as moisture can be adsorbed and removed more reliably, and are released into the atmosphere in a clean, dry and harmless state. Further, since the cooling means 51 cools the periphery of the meandering exhaust passage 50 formed in the casing 41 and the inside of the passage, the exhaust gas can be rapidly cooled to 70 ° C. or less efficiently, and dioxins are regenerated. It eliminates the room. Moreover, the upper wall 52, the lower wall 53, the communication pipe 54, and the like forming the cooling means 51 are supplied with cooling water from a water supply port 55 disposed on the lower side, and after heat exchange from a water supply port 56 disposed on the upper side. Since the hot water is supplied, the cooling efficiency is also excellent.
[0063]
The exchangeable / removable filter 61 in the vapor removal mechanism 40 contains an adsorbent 64 that is solidified therein, so that even if it is contaminated by adsorbing harmful components, it can be removed from the inside of the container frame 41. Taking out, for example, washing in the separation tanks 81 and 111 in the separation mechanisms 80 and 110, and then drying them in the sun, for example, can recover their adsorption capacity and easily perform maintenance such as maintaining a predetermined adsorption capacity at all times. Can do. Such maintenance can be similarly performed for the filters 95 and 112 in the separation mechanisms 80 and 110, respectively.
[0064]
In addition, the separation mechanisms 80 and 110 overflow and remove floating contaminants in the input contaminated water liquid and the like, and separation tanks 81 and 81 that clean the contaminated water liquid and the like by removing harmful substances by the filters 95 and 112. 111, and separation tank lids 101 and 113 for cooling and evaporating water from the separation tanks 81 and 111 to recirculate to the separation tanks 81 and 111. Therefore, the exhaust gas cleaning tower 10 and the steam removal mechanism 40 are constituted. In the separation tanks 81 and 111, suspended substances such as tar are suspended and overflowed through the overflow means 89 and aggregated in the adsorbent. The agglomerated material thus formed can be treated by being settled in a collective manner by the guide surface 83 and the disposal port 85 inclined downward, and the evaporating water from the separation tanks 81 and 111 is separated from the cooling structure. In combination with recirculation of the water droplets by the tank lids 101 and 113, the water is reused as being supplied and injected into the exhaust gas cleaning tower 10 or the vapor removal mechanism 40 by replenishing the adsorbent again as a purified adsorbed water liquid. Can be circulated. Moreover, harmful components in the exhaust gas introduced into the exhaust gas cleaning tower 10 are finally adsorbed and agglomerated by the adsorbent to precipitate in the separation tanks 81 and 111 in the separation mechanisms 80 and 110 as precipitates and sludge. Therefore, they can be taken out and detoxified by melting and burning again as slag, or secondary use as construction / construction material.
[0065]
That is, in the separation tank 81 (111), the inside of the tank container 82 is partitioned into the input chamber 87 and the separation chamber 88 by the separation partition wall 86, and the overflow component 89 can be overflowed and removed by the overflow means 89 in the input chamber 87. After the contaminated water is cleaned by the filter 95 (112) disposed in the separation chamber 88, the water can be pumped by the pumping pipe 96 (116) and supplied to the exhaust gas cleaning tower 10 or the steam removing mechanism 40, and the injection supply mechanism 15 or It can be used again as an adsorbed water solution through the shower nozzle 49, and the contaminated adsorbed water solution does not leak out to the outside of the device, and the safety is enhanced as a closed system that does not leak unpleasant odor, smoke, etc. to the outside. Can do.
[0066]
On the other hand, in the separation tank lid 101 (113) disposed on the separation tank 81 (111), the evaporating water is surely captured by the cover lid 102 that almost covers the separation tank 81 (111). The water is cooled and formed into water droplets by the inclined substantially flat cooling chamber 103, and the water droplets are guided to drop onto the upper surface of the hollow cone-shaped shielding guide plate 106 formed in the cover lid 102, thereby returning to the reflux pipe 107. Then, it can be refluxed into the separation tank 81 (111).
[Brief description of the drawings]
FIG. 1 is an overall schematic diagram showing an embodiment of the present invention.
FIG. 2 is a longitudinal sectional view of the exhaust gas cleaning tower.
3 is a cross-sectional view taken along line AA in FIG.
4 is a cross-sectional view taken along line BB in FIG.
FIG. 5 is a perspective view of a separation and dropping part in the exhaust gas cleaning tower.
FIG. 6 is a cross-sectional view of a drain port in the exhaust gas cleaning tower.
FIG. 7 is a longitudinal sectional view of the same steam removal mechanism.
FIG. 8 is a front view of the same.
FIG. 9 is a partially cutaway perspective view of a filter in the same steam removal mechanism.
FIG. 10 is a longitudinal sectional view of the separation mechanism.
[Explanation of symbols]
1 ... Combustion furnace 2 ... Flue gas passage
10 ... Exhaust gas cleaning tower 11 ... Gas inlet
12 ... Gas outlet 13 ... Anti-seizing part
14 ... Injection hole 15 ... Injection supply mechanism
16 ... Nozzle
20 ... Exhaust gas treatment mechanism 21 ... Upper blockage guide part
22 ... Upper skirt 23 ... Occlusion plate
24 ... Upper cylinder 25 ... Upper flange guide
26 ... Lower flange guide 27 ... Lower outflow guide section
28 ... Lower skirt 29 ... Lower cylinder
30 ... Flow path 31 ... Separation drop part
32 ... Drop hole 33 ... Inside wall
34 ... Through hole 35 ... Outlet
36 ... outer wall 37 ... drainage
38 ... Drain pipe
40 ... Steam removal mechanism 41 ... Container frame
42 ... Connection port 43 ... Exhaust port
44 ... Opening / closing door 45 ... Drain outlet
46 ... Drainage groove 47 ... Guide board
49 ... Shower nozzle 50 ... Exhaust flow path
51 ... Cooling means 52 ... Upper wall
53 ... Lower wall 54 ... Communication pipe
55 ... Water supply port 56 ... Water supply port
61 ... Filter 62 ... Support material
63 ... Filter box 64 ... Adsorbent
65 ... Cover plate 66 ... Exhaust pipe
67 ... Damper 68 ... Blower
69 ... exhaust chimney
70 ... Cooling mechanism 71 ... Cooling water tank
72 ... Water supply pipe 73 ... Supply pipe
74 ... Pump 75 ... Filter
76 ... Chiller unit
80 ... separation mechanism 81 ... separation tank
82 ... Tank container 83 ... Guide surface
84 ... Disposal bowl 85 ... Disposal port
86 ... Separation compartment 87 ... Input chamber
88 ... Separation chamber 89 ... Overflow means
91 ... Discharge part 95 ... Filter
96 ... uppipe 97 ... pump
98 ... Adsorbent charging means 99 ... Water supply means
101 ... Separation tank lid 102 ... Cover lid
103 ... Cooling room 104 ... Water supply port
105 ... Feeding port 106 ... Shielding guide plate
107 ... reflux pipe
110 ... separation mechanism 111 ... separation tank
112 ... Filter 113 ... Separation tank lid
114 ... Tank 115 ... Pump
116 ... reflux pipe

Claims (12)

  It has a gas inlet at the top for introducing exhaust gas generated when incinerating and burning various types of waste, and a gas outlet at the bottom for exhausting treated exhaust gas, as well as a shower of adsorbed water mixed with an adsorbent. Exhaust gas that is sprayed in the shape of an exhaust gas to cool and cool the exhaust gas, drain the waste liquid that dissolves harmful components to the outside, and arrange the exhaust gas treatment mechanism to guide and separate the gas components downwards in an appropriate number of stages Smoke is washed with the washing tower and the adsorbed water liquid that is continuously installed in the exhaust gas washing tower and sprayed in the form of a shower. Then, harmful components and vapor components are removed by a filter containing the adsorbent and exhausted to the outside. On the separation tank that cleans the drainage by removing the adsorbent etc. adsorbing harmful substances in the drainage drained from the steam removal mechanism, exhaust gas cleaning tower, and steam removal mechanism, respectively, This separation Cooling the evaporative water that is evaporated from the tank, removing apparatus of harmful substances of the exhaust gas in the combustion furnace, characterized in that and a separating mechanism disposed separation tank lid for returning the separated tank with water droplets of.   The exhaust gas cleaning tower is provided with a seizure prevention unit at the gas inlet for supplying and cooling the cooled adsorbed water mixed with the adsorbent from the separation mechanism, and the adsorbed water is showered on the exhaust gas treatment mechanism. An apparatus for removing harmful substances from exhaust gas in a combustion furnace according to claim 1, further comprising an injection supply mechanism for injecting the exhaust gas into the combustion furnace.   In the exhaust gas treatment mechanism, an upper cylinder whose upper part is closed by a closing plate is connected to an upper skirt which is gradually inclined downward as it reaches the outer periphery and is fixedly supported on the inner peripheral surface of the tower main body of the exhaust gas cleaning tower. And an upper closing guide portion that forms an outward upper flange guide that is inclined downward around the closing plate, and an inward downward inclination that is positioned below the upper flange guide and fixedly supported on the inner peripheral surface of the tower body. The lower cylinder guide is connected to the lower flange guide and the lower skirt, which is gradually inclined downward as it reaches the outer periphery, and is fixedly supported on the inner peripheral surface of the tower body. A lower outflow guide portion disposed below and forming a flow path for exhaust gas between the upper closing guide portion, a separation falling portion formed in the upper skirt of the upper closing guide portion, and a lower flow Guide portion removing apparatus of harmful substances of the exhaust gas in the combustion furnace according to claim 1 or 2, wherein and a drain port which are opened in the column body portion which is an outer peripheral portion of the lower skirt of.   The separation drop part has a drop hole formed in the peripheral part of the upper skirt, and a large number of through holes are opened, and an outlet is formed in the lower part so as to gradually narrow as it goes downward. The inner wall is connected downward along the peripheral edge of the drop hole, and the outer wall surrounding the inner wall is connected to the outer periphery of the inner wall at an appropriate interval below the upper skirt. An apparatus for removing harmful substances from exhaust gas in a combustion furnace according to claim 3.   The drainage port is located at the peripheral edge of the lower skirt in the lower outflow guide part, and is formed in the side wall of the tower main body of the exhaust gas cleaning tower so as to communicate with the drainage pipe piped outside the tower main body. 5. The apparatus for removing harmful substances from exhaust gas in a combustion furnace according to claim 3, wherein the lower half of the connection opening portion of the drainage pipe is set below the fixed portion of the lower skirt.   The steam removal mechanism is continuously installed in the exhaust gas cleaning tower, and is partitioned by a container frame in which an adsorbed water liquid mixed with an adsorbent is injected, and cooling means disposed in the container frame. 6. An exhaust passage formed in a meandering shape, and a filter dispersed and detachably arranged in the exhaust passage and containing an adsorbent. Equipment for removing harmful substances from exhaust gas in combustion furnaces.   The cooling means is formed below the inclined guide plate formed immediately below the connection port through which the gas component exhausted from the exhaust gas cleaning tower flows, and the upper part is guided on the front side which is the gas inflow side. A hollow upper wall that is connected to the back of the plate and whose lower part is open to the bottom of the instrument frame, and the upper part is open to the guide plate on the rear side that is the gas outflow part side, and the lower part is the instrument frame A hollow lower wall connected to the bottom, a plurality of communication pipes arranged in a row connected to the upper and lower walls between the upper and lower walls opposite to each other, and a bottom of the lower wall The apparatus for removing harmful substances from exhaust gas in a combustion furnace according to claim 6, wherein the apparatus is formed from a water supply port provided in the upper wall and a supply outlet provided in an upper portion of the upper wall.   The filter is arranged so as to block the flow path at a predetermined position within the meandering exhaust flow path, and has a substantially flat shape corresponding to the cross-sectional shape of the flow path and having a large number of through holes. The apparatus for removing harmful substances from exhaust gas in a combustion furnace according to claim 6 or 7, wherein the solidified adsorbent is stored in the filter box.   The separation mechanism separates and removes the adsorbent that has adsorbed harmful components in the exhaust gas, cleans and cools the drainage and contaminated water, and replenishes and dissolves the adsorbent to remove the adsorbent from the exhaust gas cleaning tower or steam. The apparatus for removing harmful substances from exhaust gas in a combustion furnace according to any one of claims 1 to 8, wherein the removal mechanism supplies and injects the adsorbed water again.   The separation mechanism overflows and removes pollutants floating in the drained and contaminated water, and removes harmful substances adsorbed on the adsorbent with a filter to clean the drained and contaminated water. 10. The separation tank according to claim 1, further comprising a separation tank and a separation tank lid disposed on the separation tank so that the evaporated water evaporated from the separation tank is cooled, converted into water droplets and returned to the separation tank. For removing harmful substances from exhaust gas in combustion furnaces in Japan.   The separation tank is provided with a bottom wall that is open at the top, has a bottom inclined guide surface that is continuous with a waste slant that is inclined downward at a waste outlet provided at the bottom, and a separation partition wall that opens at the bottom wall side. A tank container defined in each of the input chamber and the separation chamber, overflow means provided in the input chamber, a filter disposed in the separation chamber so as to be replaceable / detachable, and containing an adsorbent, and cleaned by this filter The apparatus for removing harmful substances from exhaust gas in a combustion furnace according to any one of claims 1 to 10, further comprising a pumping pipe for pumping purified water.   The separation tank lid forms a cooling chamber that is substantially flat and inclined on the upper wall of the box-shaped cover lid having a lower opening that is larger than the upper opening portion of the separation tank, and the upper opening portion of the separation tank. A hollow cone-shaped shielding guide plate having a bottom opening that is larger than the bottom opening and a top opening that is smaller than the bottom opening is disposed in the cover so as to correspond to the lower position of the shielding guide plate. The apparatus for removing harmful substances from exhaust gas in a combustion furnace according to any one of claims 1 to 11, further comprising a reflux pipe connected to the separation tank.

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