JPH08206449A - Exhaust gas desulfurization equipment - Google Patents

Exhaust gas desulfurization equipment

Info

Publication number
JPH08206449A
JPH08206449A JP7037797A JP3779795A JPH08206449A JP H08206449 A JPH08206449 A JP H08206449A JP 7037797 A JP7037797 A JP 7037797A JP 3779795 A JP3779795 A JP 3779795A JP H08206449 A JPH08206449 A JP H08206449A
Authority
JP
Japan
Prior art keywords
gas
chamber
liquid
desulfurization
dust
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP7037797A
Other languages
Japanese (ja)
Other versions
JP3517298B2 (en
Inventor
Seiichi Wada
誠一 和田
Kazuhiro Akaike
一宏 赤池
Taketoshi Yasumune
武敏 安宗
Megumi Taguchi
めぐみ 田口
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SEKIYU SANGYO KASSEIKA CENTER
Mitsubishi Kakoki Kaisha Ltd
Japan Petroleum Energy Center JPEC
Original Assignee
SEKIYU SANGYO KASSEIKA CENTER
Petroleum Energy Center PEC
Mitsubishi Kakoki Kaisha Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SEKIYU SANGYO KASSEIKA CENTER, Petroleum Energy Center PEC, Mitsubishi Kakoki Kaisha Ltd filed Critical SEKIYU SANGYO KASSEIKA CENTER
Priority to JP03779795A priority Critical patent/JP3517298B2/en
Publication of JPH08206449A publication Critical patent/JPH08206449A/en
Application granted granted Critical
Publication of JP3517298B2 publication Critical patent/JP3517298B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Gas Separation By Absorption (AREA)
  • Separation Of Particles Using Liquids (AREA)
  • Treating Waste Gases (AREA)

Abstract

PURPOSE: To provide an exhaust gas desulfurization equipment capable of preventing the accumulation of dust in the vicinity of a gas blowoff port provided in the lower part of a gas introducing chamber to prevent the increase of pressure loss caused by the accumulation of dust. CONSTITUTION: A partition plate 70 raising a gas blowoff port 30b from a liquid sump part 60 is provided from the lower part of a gas introducing chamber 30 to the upstream lower part of a vortex treatment chamber 40, and a dust discharge gap (d) is formed between the bottom surface of the liquid sump part 60 and the lower end of the guide plate 45 being the lower wall of the upwardly inclined passage part 42 of the vortex treatment chamber 40, and the distributing plate 71 introducing an ejected desulfurization treatment soln. (a) and treatment gas (b) into the vortex generating part 41 of the vortex treatment chamber 40 is provided in the vicinity of the gas blowoff port 30b of the partition plate 70.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、化石燃料を使用するボ
イラ、焼却炉、陸上および舶用ディーゼルエンジンなど
の排ガス中に含まれるダストおよびイオウ酸化物を同時
に除去する湿式脱硫方式の排煙脱硫装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wet desulfurization type flue gas desulfurization apparatus for simultaneously removing dust and sulfur oxides contained in exhaust gas from boilers, incinerators, onshore and marine diesel engines using fossil fuels. Regarding

【0002】[0002]

【従来の技術】化石燃料を使用するボイラや、焼却炉、
陸上および舶用ディーゼルエンジンなどの排ガス中に
は、比較的多量のダストやイオウ酸化物が含まれてお
り、それを大気中に排気することで公害問題になってい
る。そこで、これを解消するものとして、各種の排煙脱
硫装置が開発されている。
Boilers using fossil fuels, incinerators,
Exhaust gas from land and marine diesel engines contains a relatively large amount of dust and sulfur oxides, and exhausting them into the atmosphere poses a pollution problem. Therefore, various flue gas desulfurization devices have been developed to solve this problem.

【0003】従来の排煙脱硫装置として、例えば本願特
許出願人が先に提出した特開平6−285328号公報
に記載されたものなどが知られている。この装置は、脱
硫器内の内部が、横方向の一端部、中央部そして他端部
の順に、上部に処理ガスのガス入口が、下部にガス吹出
口が形成されて、室内に脱硫処理液用のスプレーノズル
が設けられたガス導入室と、ガス導入室のガス吹出口に
連通されて、上流側の上部にほぼ円筒状の渦流発生部が
設けられ、下流側には上端部が下方へ湾曲する上傾斜通
路部が設けられた渦流処理室と、渦流処理室の上傾斜通
路部に連通されて、上部に処理済ガスのガス出口が形成
され、しかも室内にミストセパレータが設けられたガス
排出室との3室に区画され、前記脱硫器の下部に、スプ
レーノズルから噴出された脱硫処理液や処理ガス中から
除塵されたダストを溜める液溜まり部が設けられたもの
である。
As a conventional flue gas desulfurization apparatus, for example, one described in Japanese Patent Application Laid-Open No. 6-285328 previously filed by the applicant of the present application is known. In this device, the inside of the desulfurizer has one end in the lateral direction, the center and the other end in that order, a gas inlet for the processing gas is formed in the upper part, and a gas outlet is formed in the lower part. Is connected to the gas inlet chamber where the spray nozzle is installed, and the gas outlet of the gas inlet chamber is provided with a substantially cylindrical eddy current generating portion on the upper side of the upstream side, and the upper end portion is downward on the downstream side. A gas that is connected to an eddy current processing chamber provided with a curved upper inclined passage portion and an upper inclined passage portion of the eddy current processing chamber to form a gas outlet for the treated gas at the upper portion, and further has a mist separator provided inside the chamber. It is divided into three chambers including a discharge chamber, and a liquid pool portion for storing the desulfurization treatment liquid ejected from the spray nozzle and the dust removed from the treatment gas is provided below the desulfurizer.

【0004】処理ガスは、脱硫器のガス入口からガス導
入室を通過し、この途中で容器内に供給された脱硫処理
液に接触して、その液中に、処理ガスに含まれるイオウ
酸化物が吸収され、それからガス導入室の下部のガス吹
出口から渦流処理室内へ吹き出されて、この処理ガスお
よび霧状の脱硫処理液は渦流発生部内で渦流となり、遠
心力によりその渦流発生部の形成面に当たって液膜がで
き、処理ガス中に含まれるダストは液膜に補集されて、
容器の底部の液溜まり部に貯溜され、その後ほどんど処
理が済んだ処理ガスと幾らかの霧状の脱硫処理液は、渦
流処理室の上傾斜通路部の形成面にも液膜を作って脱硫
およびダストの補集が行われ、続いて上傾斜通路部から
ガス排出室へ送られた処理済ガスは、ミストセパレータ
により霧状の脱硫処理液やダストが瀘過されてガス出口
より外部排出される。
The processing gas passes through the gas inlet of the desulfurizer through the gas introduction chamber and contacts the desulfurization processing liquid supplied into the vessel on the way to the sulfur oxide contained in the processing gas. Is absorbed and then blown out from the gas outlet in the lower part of the gas introduction chamber into the vortex processing chamber, and this processing gas and atomized desulfurization treatment liquid form a vortex in the vortex generation section, and the vortex generation section is formed by centrifugal force. A liquid film is formed by hitting the surface, dust contained in the processing gas is collected in the liquid film,
The processing gas and some mist-like desulfurization processing liquid, which was stored in the liquid pool at the bottom of the container and was almost processed after that, also formed a liquid film on the formation surface of the upper inclined passage part of the vortex processing chamber. After desulfurization and dust collection, the treated gas sent from the upper sloped passage to the gas discharge chamber is discharged to the outside from the gas outlet after the mist separator filters the mist-like desulfurization treatment liquid and dust. To be done.

【0005】[0005]

【発明が解決しようとする課題】ところで、ダストを多
量に含んだ処理ガスを処理した際、ガス導入室の下部
に、スプレーノズルから噴出された脱硫処理液により、
多量のダストが洗い落とされる。しかし、従来の排煙脱
硫装置では、渦流処理室の上傾斜通路部の下壁である案
内板が、脱硫器の液溜まり部の底面に溶接されているの
で、処理ガス量がある程度であれば、高い流速が得られ
て、脱硫処理液およびダストはガス吹出口から勢いよく
渦流処理室へ噴出され、案内板に沿って上傾斜通路部を
上昇してガス排出室に圧送されるものの、処理ガス量が
減少すれば、ガス吹出口から渦流処理室へ噴出される勢
いが低下し、脱硫器の底面と案内板の下端部付近にダス
トが堆積し易くなる。これにより、ガス吹出口が堆積し
たダストにより塞がれ、圧力損失が増大する恐れがあ
る。
By the way, when the processing gas containing a large amount of dust is processed, the desulfurization processing liquid ejected from the spray nozzle is provided in the lower part of the gas introduction chamber.
A large amount of dust is washed off. However, in the conventional flue gas desulfurization apparatus, the guide plate, which is the lower wall of the upper inclined passage portion of the vortex processing chamber, is welded to the bottom surface of the liquid pool portion of the desulfurizer. , A high flow velocity is obtained, and the desulfurization treatment liquid and dust are vigorously ejected from the gas outlet into the swirl treatment chamber, and ascend up the upper inclined passage along the guide plate to be pumped to the gas discharge chamber. If the amount of gas decreases, the momentum of ejection from the gas outlet to the swirl processing chamber decreases, and dust easily accumulates on the bottom surface of the desulfurizer and the lower end portion of the guide plate. As a result, the gas outlet may be blocked by the accumulated dust, and the pressure loss may increase.

【0006】本発明は、前記従来技術の課題を背景にな
されたもので、ガス導入室の下部のガス吹出口付近にダ
ストが堆積するのを防止できて、ダスト堆積による圧力
損失の増大を防止できる排煙脱硫装置を提供することを
目的とする。
The present invention has been made against the background of the above-mentioned problems of the prior art. It is possible to prevent dust from accumulating in the vicinity of the gas outlet in the lower part of the gas introduction chamber, and to prevent an increase in pressure loss due to dust accumulation. An object of the present invention is to provide a flue gas desulfurization device that can be used.

【0007】[0007]

【課題を解決するための手段】請求項1に記載の排煙脱
硫装置は、脱硫器内の内部が、横方向の一端部、中央部
そして他端部の順に、上部に処理ガスのガス入口が、下
部にガス吹出口が形成されて、室内に脱硫処理液用のス
プレーノズルが設けられたガス導入室と、該ガス導入室
のガス吹出口に連通されて、上流側の上部にほぼ円筒状
の渦流発生部が設けられ、下流側には上端部が下方へ湾
曲する上傾斜通路部が設けられた渦流処理室と、該渦流
処理室の上傾斜通路部に連通されて、上部に処理済ガス
のガス出口が形成されたガス排出室とに区画され、また
前記脱硫器の下部に、前記スプレーノズルから噴出され
た脱硫処理液や処理ガス中から除塵されたダストを溜め
る液溜まり部が設けられた排煙脱硫装置において、前記
ガス導入室の下部から前記渦流発生室の上流下部にかけ
て、前記液溜まり部から前記ガス吹出口を底上げする仕
切り板が設けられ、また前記液溜まり部の底面と、前記
渦流処理室の上傾斜通路部の下壁である案内板の下端と
の間にダスト排出隙間が形成され、そして該仕切り板の
ガス吹出口付近に、前記噴出された脱硫処理液および前
記処理ガスを、前記渦流処理室の渦流発生部へ導入させ
る整流板を設けたことを特徴とする。
A flue gas desulfurization apparatus according to claim 1, wherein the inside of the desulfurizer is a gas inlet for processing gas at the upper part in the order of one end, the center and the other end in the lateral direction. However, a gas outlet is formed in the lower part, and a gas introduction chamber in which a spray nozzle for desulfurization treatment liquid is provided in the chamber and a gas outlet of the gas introduction chamber are communicated with each other, and a substantially cylindrical shape is provided in the upper part on the upstream side. -Like eddy current generating portion is provided, and the upper end of the eddy current processing chamber is connected to the eddy current processing chamber in which an upper inclined passage portion whose upper end portion curves downward is provided on the downstream side and the upper inclined passage portion of the eddy current processing chamber. The gas outlet of the used gas is divided into a gas discharge chamber, and in the lower part of the desulfurizer, there is a liquid pool part for storing the desulfurization treatment liquid ejected from the spray nozzle and the dust removed from the treatment gas. In the flue gas desulfurization equipment provided, the lower part of the gas introduction chamber A partition plate that raises the gas outlet from the liquid reservoir to the upper part of the swirl generating chamber, and a bottom plate of the liquid reservoir and a lower wall of the upper inclined passage of the swirl processing chamber. A dust discharge gap is formed between the lower end of a certain guide plate, and the jetted desulfurization treatment liquid and the treatment gas are introduced into the vortex flow generating portion of the vortex flow treatment chamber near the gas outlet of the partition plate. It is characterized in that a rectifying plate is provided.

【0008】また、請求項2に記載の排煙脱硫装置は、
請求項1に記載の排煙脱硫装置において、前記液溜まり
部に、該液溜まり部の水位を、前記案内板の下端上部に
保持する廃液部を設けるように構成されている。
The flue gas desulfurization apparatus according to claim 2 is
The flue gas desulfurization apparatus according to claim 1, wherein the liquid pool is provided with a waste liquid part for holding the water level of the liquid pool above the lower end of the guide plate.

【0009】さらに、請求項3に記載の排煙脱硫装置
は、請求項1に記載の排煙脱硫装置において、前記液溜
まり部に、該液溜まり部の底面に堆積した前記ダストを
排出するドレン部を設けるように構成されている。
Further, the flue gas desulfurization apparatus according to a third aspect is the drain flue gas desulfurization apparatus according to the first aspect, wherein the drain is for discharging the dust accumulated on the bottom surface of the liquid pool to the liquid pool. It is configured to provide a section.

【0010】[0010]

【作用】請求項1〜3に記載の排煙脱硫装置において、
処理ガスは、脱硫器のガス入口からガス導入室を通過
し、この途中で容器内に供給された脱硫処理液に接触し
て、その液中に、処理ガスに含まれるイオウ酸化物が吸
収され、それからガス導入室の下部のガス吹出口から流
速を増加されて渦流処理室内へ吹き出される。このと
き、処理ガスおよび霧状の脱硫処理液は、仕切り板のガ
ス吹出口付近に設けられた整流板により渦流処理室の渦
流発生部へ導入され、この渦流発生部内で渦流となり、
遠心力によりその渦流発生部の形成面に当たって液膜が
でき、処理ガス中に含まれるダストは液膜に補集され
て、容器の底部の液溜まり部に貯溜される。
In the flue gas desulfurization apparatus according to any one of claims 1 to 3,
The treated gas passes through the gas inlet chamber of the desulfurizer through the gas introduction chamber and comes into contact with the desulfurization treatment liquid supplied into the container during this process, and the sulfur oxide contained in the treatment gas is absorbed in the liquid. Then, the flow velocity is increased from the gas outlet in the lower part of the gas introduction chamber and the gas is blown into the swirl processing chamber. At this time, the treatment gas and the atomized desulfurization treatment liquid are introduced into the vortex flow generating portion of the vortex flow treatment chamber by the flow straightening plate provided near the gas outlet of the partition plate, and become a vortex in the vortex flow generating portion,
Due to the centrifugal force, a liquid film is formed by hitting the surface on which the vortex flow generating portion is formed, and the dust contained in the processing gas is collected in the liquid film and stored in the liquid pool portion at the bottom of the container.

【0011】その後、ほどんど処理が済んだ処理ガスと
幾らかの霧状の脱硫処理液は、渦流処理室の上傾斜通路
部の形成面にも液膜を作って脱硫およびダストの補集が
行われ、続いて上傾斜通路部からガス排出室へ送られた
処理済ガスは、ガス出口より外部排出される。多量のダ
ストを含むガス処理中、仮に処理ガス量が減少して、ガ
ス吹き出し口から渦流処理室へ噴出される勢いが低下
し、液膜に補集されたダストが案内板に沿って上傾斜通
路部を上昇できない事態が生じた場合、ダストは案内板
に案内されて仕切り板と案内板との間に落ち込み、そこ
から液溜まり部の底面と、案内板の下端との間に形成さ
れたダスト排出隙間から液溜まり部へ支障なく流れ込む
ので、ガス導入室の下部のガス吹出口付近にダストが堆
積するのを防止できて、ダスト堆積による圧力損失の増
大を防止できる。
After that, the treatment gas which has been almost treated and some of the mist-like desulfurization treatment liquid also form a liquid film on the surface where the upper inclined passage portion of the swirl treatment chamber is formed to desulfurize and collect dust. The processed gas that has been carried out and is subsequently sent from the upper inclined passage portion to the gas discharge chamber is discharged to the outside from the gas outlet. During gas processing containing a large amount of dust, the amount of processing gas is temporarily reduced, and the momentum ejected from the gas outlet to the swirl processing chamber decreases, and the dust collected in the liquid film tilts upward along the guide plate. When a situation where the passage cannot be raised occurs, dust is guided by the guide plate and falls between the partition plate and the guide plate, and from there, it is formed between the bottom surface of the liquid pool and the lower end of the guide plate. Since the dust flows from the dust discharge gap into the liquid reservoir without any trouble, it is possible to prevent dust from accumulating in the vicinity of the gas outlet in the lower part of the gas introduction chamber, and to prevent an increase in pressure loss due to dust accumulation.

【0012】また、請求項2に記載の排煙脱硫装置にお
いて、液溜まり部に多量の脱硫処理液が溜まっても、廃
液部によりその過剰分が外部へ流出されるので、液溜ま
り部の水位が案内板の下端部付近に保持される。
Further, in the flue gas desulfurization apparatus according to the second aspect, even if a large amount of desulfurization treatment liquid is accumulated in the liquid pool portion, the excess amount is discharged to the outside by the waste liquid portion, so that the water level in the liquid pool portion is increased. Are held near the lower end of the guide plate.

【0013】さらに、請求項3に記載の排煙脱硫装置に
おいて、液溜まり部にダストが堆積した場合には、液溜
まり部の底面に設けられたドレン部からダストを排出す
る。
Further, in the flue gas desulfurization apparatus according to the third aspect, when dust is accumulated in the liquid pool, the dust is discharged from the drain part provided on the bottom surface of the liquid pool.

【0014】[0014]

【実施例】以下、本発明の実施例を図面を参照して詳細
に説明するが、本発明はこの実施例に限定されない。
Embodiments of the present invention will now be described in detail with reference to the drawings, but the present invention is not limited to these embodiments.

【0015】図1に示すように、本発明の一実施例の排
煙脱硫装置10は、脱硫器20を有しており、脱硫器2
0の内部は、横方向の一端部、中央部そして他端部の順
にガス導入室30、渦流処理室40そしてガス排出室5
0に区画され、また脱硫器20の下部には、脱硫処理液
aや処理ガスb中から除塵されたダストcを溜める液溜
まり部60が設けられている。
As shown in FIG. 1, a flue gas desulfurization apparatus 10 according to an embodiment of the present invention has a desulfurizer 20 and a desulfurizer 2
The inside of 0 is a gas introduction chamber 30, a vortex processing chamber 40, and a gas discharge chamber 5 in the order of one end, the center, and the other end in the lateral direction.
Further, at the lower part of the desulfurizer 20, there is provided a liquid pool 60 for collecting dust c removed from the desulfurization treatment liquid a and the treatment gas b.

【0016】ガス導入室30は、脱硫器20の一端側の
壁板と、これより所定間隔離れた垂直板31とにより区
画された室であり、上部に処理ガスbのガス入口30a
が、下部にガス吹出口30bが形成されて、室内上部に
脱硫処理液aを下向きに噴射するスプレーノズル32が
設けられている。脱硫処理液aとしては、例えば石灰石
や消石灰などの吸収剤と吸収生成物である石膏や亜硫酸
カルシウムなどとの混合物からなるスラリー状のもの
や、酸化マグネシウムや亜硫酸マグネシウムなどの吸収
剤と吸収生成物である硫酸マグネシウムや亜硫酸マグネ
シウムなどとの混合物からなる溶液またはスラリー状の
ものを採用することができるが、その他のアルカリ塩溶
液なども採用できる。
The gas introduction chamber 30 is a chamber partitioned by a wall plate on one end side of the desulfurizer 20 and a vertical plate 31 which is separated by a predetermined distance from the wall plate, and has a gas inlet 30a for the processing gas b at the upper portion.
However, a gas outlet 30b is formed in the lower part, and a spray nozzle 32 for injecting the desulfurization treatment liquid a downward is provided in the upper part of the room. As the desulfurization treatment liquid a, for example, a slurry-like mixture of a mixture of an absorbent such as limestone or slaked lime and an absorption product such as gypsum or calcium sulfite, or an absorbent such as magnesium oxide or magnesium sulfite and the absorption product. It is possible to employ a solution or slurry of a mixture with magnesium sulfate, magnesium sulfite, etc., but other alkali salt solutions can also be employed.

【0017】また、渦流処理室40は、上流側の上部に
配置された、ほぼ円筒状の渦流発生部41と、下流側に
配置された、上端部が円弧状に下方へ湾曲する上傾斜通
路部42とから構成されている。渦流発生部41は、一
端が垂直板31の中央部付近に固着され、かつ下部が開
口された断面下向きC形の湾曲板43により区画されて
いる。また、上傾斜通路部42は、湾曲板43の内方へ
捲くり込まれた他端から立ち上がって、一旦、脱硫器2
0の中央上端まで延びたのち円弧状に下降した上側通路
板44と、脱硫器20の底面より幾らか上方位置から上
側通路板44に沿って立ち上がった案内板45とから構
成されており、上側通路板44の上端と、案内板45の
上端とにより下向きの排出口40aが形成されている。
The eddy current processing chamber 40 has a substantially cylindrical eddy current generating portion 41 arranged in the upper portion on the upstream side, and an upper inclined passage arranged in the downstream side, the upper end portion of which is curved downward in an arc shape. And part 42. The vortex flow generating section 41 is partitioned by a curved plate 43 having one end fixed near the center of the vertical plate 31 and a C-shaped downward cross-section with an open bottom. In addition, the upper inclined passage portion 42 rises from the other end that is rolled up inward of the curved plate 43, and temporarily rises to the desulfurizer 2
The upper passage plate 44 extends to the upper end of the center of 0 and descends in an arc shape, and the guide plate 45 that rises along the upper passage plate 44 from a position slightly above the bottom surface of the desulfurizer 20. The upper end of the passage plate 44 and the upper end of the guide plate 45 form a downward discharge port 40a.

【0018】ガス排出室50は、渦流処理室40の上傾
斜通路部42の排出口40aに連通されて、上部に処理
済ガスb′のガス出口50aが形成されている。また、
ガス排出室50の側壁板の下部付近には、液溜まり部6
0の水位を、案内板45の下端よりやや上方にガスの吹
き抜けをシールできる高さに保持する開閉弁51付きの
廃液部52が設けられている。なお液溜まり部60の底
面には、堆積したダストcを排出する開閉弁61付きの
ドレン部62が設けられている。
The gas discharge chamber 50 is communicated with the discharge port 40a of the upper inclined passage portion 42 of the swirl processing chamber 40, and the gas outlet 50a of the processed gas b'is formed in the upper part thereof. Also,
In the vicinity of the lower portion of the side wall plate of the gas discharge chamber 50, the liquid pool 6
A waste liquid portion 52 with an on-off valve 51 for maintaining the water level of 0 at a height slightly above the lower end of the guide plate 45 so as to seal the blow-through of gas is provided. A drain portion 62 with an opening / closing valve 61 for discharging the accumulated dust c is provided on the bottom surface of the liquid pool portion 60.

【0019】ここで、本発明の排煙脱硫装置10の特長
は、ガス導入室30の下部から渦流処理室40の上流下
部にかけて、液溜まり部60からガス吹出口30bを底
上げする仕切り板70が設けられ、また液溜まり部60
の底面と案内板45の下端との間にダスト排出隙間dが
形成され、そして仕切り板70のガス吹出口30b付近
に、噴出された脱硫処理液aおよび処理ガスbを、渦流
処理室40の渦流発生部41へ導入させる上傾斜した短
尺な整流板71を設けた点にある。仕切り板70は、中
間部付近が下方へ直角に屈曲した板材であり、この仕切
り板70と案内板45との間には、比較的広めの隙間e
が形成されている。
Here, the feature of the flue gas desulfurization apparatus 10 of the present invention is that the partition plate 70 which raises the gas outlet 30b from the liquid reservoir 60 from the lower part of the gas introduction chamber 30 to the upper upstream part of the swirl processing chamber 40 is provided. Is provided and the liquid pool 60
A dust discharge gap d is formed between the bottom surface of the partition plate 70 and the lower end of the guide plate 45, and the desulfurization treatment liquid a and the treatment gas b ejected near the gas outlet 30b of the partition plate 70 are discharged from the swirl treatment chamber 40. The point is that a short rectifying plate 71 that is inclined upward and is introduced into the vortex flow generating portion 41 is provided. The partition plate 70 is a plate material in which the vicinity of the middle portion is bent downward at a right angle, and a relatively wide gap e is provided between the partition plate 70 and the guide plate 45.
Are formed.

【0020】次に、本発明の一実施例の排煙脱硫装置1
0の動作を説明する。図1〜2に示すように、イオウ酸
化物やダストを含んだ処理ガスbを、図外のダクトを介
してガス導入口から排煙脱硫装置10内へ導入させる
と、処理ガスbは脱硫器20のガス入口30aからガス
導入室30へ導かれ、ここでスプレーノズル32から脱
硫処理液aが噴射されて、処理ガスb中の一部のイオウ
酸化物が吸収される。
Next, a flue gas desulfurization apparatus 1 according to one embodiment of the present invention
The operation of 0 will be described. As shown in FIGS. 1 and 2, when a processing gas b containing sulfur oxides and dust is introduced into the flue gas desulfurization apparatus 10 through a duct (not shown) into the flue gas desulfurization apparatus 10, the processing gas b is desulfurized. The gas is introduced from the gas inlet 30a of 20 into the gas introduction chamber 30, where the desulfurization treatment liquid a is injected from the spray nozzle 32, and part of the sulfur oxide in the treatment gas b is absorbed.

【0021】次いで、ガス導入室30のガス吹出口30
bにおいて、例えば10m/s以上に加速された処理ガ
スbや霧状の脱硫処理液aは整流板71により渦流処理
室40の渦流発生部41内へ加速されて吹き出され、こ
の遠心力により曲面板43の内側が真空状態となり、曲
面板43の終端部により渦流が発生する。これにより、
垂直板31の内面および曲面板43の内面全体に脱硫処
理液aの液膜が形成され、処理ガスb中のダストcは遠
心力の作用により液膜に補集される。案内板45に沿っ
て流れる処理ガスbは、脱硫処理液aのミストを同伴
し、曲面板43と案内板45の全体に脱硫処理液aの液
膜を形成するので、この液膜によっても脱硫と除塵が行
われる。その後、ほとんど処理が済んだ処理ガスbと幾
らかの霧状の脱硫処理液aは、上傾斜通路部42の形成
面にも液膜を作って脱硫およびダストcの補集が行わ
れ、続いて上傾斜通路部42の排出口40aからガス排
出室50の下方へ吹き出された処理済ガスb′は、残存
する脱硫処理液aおよびダストcを液溜まり部60内へ
落として、ガス排出室50のガス出口50aから外部排
出される。
Next, the gas outlet 30 of the gas introduction chamber 30
In b, for example, the processing gas b and the atomized desulfurization processing liquid a accelerated to 10 m / s or more are accelerated and blown out into the vortex flow generating portion 41 of the vortex flow processing chamber 40 by the rectifying plate 71, and are bent by the centrifugal force. The inside of the face plate 43 is in a vacuum state, and a vortex is generated by the end portion of the curved plate 43. This allows
A liquid film of the desulfurization treatment liquid a is formed on the entire inner surface of the vertical plate 31 and the curved plate 43, and the dust c in the processing gas b is collected in the liquid film by the action of centrifugal force. The treatment gas b flowing along the guide plate 45 entrains the mist of the desulfurization treatment liquid a and forms a liquid film of the desulfurization treatment liquid a on the curved plate 43 and the guide plate 45 as a whole. And dust is removed. After that, the treatment gas b which has been almost treated and some desulfurization treatment liquid a form a liquid film also on the surface where the upper inclined passage portion 42 is formed to desulfurize and collect the dust c. The treated gas b ′ blown out from the discharge port 40a of the upper inclined passage portion 42 to the lower side of the gas discharge chamber 50 drops the remaining desulfurization treatment liquid a and dust c into the liquid reservoir 60, and the gas discharge chamber The gas is discharged from the gas outlet 50a of 50.

【0022】それぞれの部位で補集されたダストcは、
最終的には上傾斜通路部42の排出口40aから液溜ま
り部60内へ落下するか、一旦、仕切り板70と案内板
45の下部との隙間eに落下したり、案内板45の内面
に沿ってこの隙間eに滑り落ちたりしたのち、液溜まり
部60の底面と案内板45の下端との間に形成されたダ
スト排出隙間dから液溜まり部60へ流出される。それ
から、開閉弁61の開弁によりドレン部62を介して外
部に排出される。
The dust c collected at each part is
Eventually, the liquid falls from the discharge port 40a of the upper inclined passage 42 into the liquid reservoir 60, or once into the gap e between the partition plate 70 and the lower portion of the guide plate 45, or on the inner surface of the guide plate 45. After sliding down along this gap e, it flows out to the liquid reservoir 60 from the dust discharge gap d formed between the bottom surface of the liquid reservoir 60 and the lower end of the guide plate 45. Then, the open / close valve 61 is opened to discharge it to the outside through the drain portion 62.

【0023】ところで、多量のダストcを含むガス処理
中、仮に処理ガスb量が減少して、ガス吹出口30bか
ら渦流処理室40へ噴出される勢いが低下し、液膜に補
集されたダストcが案内板45に沿って上傾斜通路部4
2を上昇できない場合、ダストcは案内板45に案内さ
れて仕切り板70と案内板45との間に落ち込んで、ダ
スト排出隙間dから液溜まり部60へ支障なく流れ込む
ので、ガス導入室30の下部のガス吹出口30b付近に
ダストcが堆積するのを防止できて、ダストcの堆積に
よる圧力損失の増大を防止できる。
By the way, during the gas treatment containing a large amount of dust c, the amount of the treatment gas b is temporarily reduced, and the momentum ejected from the gas outlet 30b to the vortex flow treatment chamber 40 is reduced and collected in the liquid film. The dust c moves along the guide plate 45 and the upper inclined passage portion 4
When it is not possible to raise 2, the dust c is guided by the guide plate 45 and falls between the partition plate 70 and the guide plate 45, and flows into the liquid pool 60 from the dust discharge gap d without any trouble. The dust c can be prevented from accumulating in the vicinity of the lower gas outlet 30b, and the pressure loss due to the accumulation of the dust c can be prevented from increasing.

【0024】なお、液溜まり部60に多量のダストcを
含む脱硫処理液aが溜まっても、開閉弁51を開弁した
廃液部52によりその過剰分が外部へ流出されるので、
液溜まり部60の水位が案内板45の下端部付近に保持
できる。
Even if the desulfurization treatment liquid a containing a large amount of dust c is accumulated in the liquid reservoir 60, the excess amount thereof is discharged to the outside by the waste liquid portion 52 having the open / close valve 51 opened.
The water level of the liquid pool 60 can be maintained near the lower end of the guide plate 45.

【0025】以上、本発明の実施例を説明したが、本発
明はこの実施例に限定されるものではなく、要旨を逸脱
しない範囲での設計変更などがあっても本発明に含まれ
る。例えば、脱硫器のガス導入室、渦流処理室およびガ
ス排出室の形状は、実施例のものに限定されなくてもよ
い。
Although the embodiment of the present invention has been described above, the present invention is not limited to this embodiment, and the present invention includes a design change and the like without departing from the scope of the invention. For example, the shapes of the gas introduction chamber, the vortex treatment chamber and the gas discharge chamber of the desulfurizer may not be limited to those of the embodiment.

【0026】また、実施例では、脱硫器のガス導入室内
に設けられたスプレーノズルの向きを下向きとしたが、
これに限定しなくても、上向きでもよい。さらに、ガス
排出室の所定箇所に、例えばガラスウールや金網の積層
体からなる周知のミストセパレータを設けて、処理済ガ
ス中に微量に含まれる脱硫処理液やダストを除去するよ
うにしてもよい。
In the embodiment, the spray nozzle provided in the gas introduction chamber of the desulfurizer is oriented downward.
The present invention is not limited to this, but may be upward. Further, a well-known mist separator made of, for example, a laminated body of glass wool or wire mesh may be provided at a predetermined position of the gas discharge chamber to remove a desulfurization treatment liquid or dust contained in a small amount in the treated gas. .

【0027】[0027]

【発明の効果】請求項1〜3記載の排煙脱硫装置におい
ては、このようにガス導入室の下部から渦流発生部の上
流下部にかけて、ガス吹出口付近に配置される整流板付
きの仕切り板を設け、また液溜まり部の底面と案内板の
下端との間にダスト排出隙間を形成したので、ガス導入
室の下部のガス吹出口付近にダストが堆積するのを防止
できて、ダスト堆積による圧力損失の増大を防止でき
る。
In the flue gas desulfurization apparatus according to the first to third aspects of the invention, the partition plate with the straightening plate disposed near the gas outlet from the lower part of the gas introduction chamber to the upper part of the upstream of the vortex flow generating part. Since a dust discharge gap is formed between the bottom surface of the liquid reservoir and the lower end of the guide plate, it is possible to prevent dust from accumulating near the gas outlet in the lower part of the gas introduction chamber, and It is possible to prevent an increase in pressure loss.

【0028】また、請求項2に記載の排煙脱硫装置にお
いては、液溜まり部に多量の脱硫処理液が溜まっても、
排出部によりその過剰分が外部へ流出されるので、液溜
まり部の水位が案内板の下端上部に保持できる。
Further, in the flue gas desulfurization apparatus according to the second aspect, even if a large amount of desulfurization treatment liquid is accumulated in the liquid reservoir,
Since the excess is discharged to the outside by the discharge part, the water level in the liquid pool can be held above the lower end of the guide plate.

【0029】さらに、請求項3に記載の排煙脱硫装置に
おいて、液溜まり部にダストが堆積した場合には、液溜
まり部の底面に設けられたドレン部からダストを排出す
るので、液溜まり部のダスト排出が良好にできる。
Further, in the flue gas desulfurization apparatus according to the third aspect, when dust accumulates in the liquid pool, the dust is discharged from the drain part provided on the bottom surface of the liquid pool, so the liquid pool Good dust discharge.

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

【図1】本発明の一実施例の排煙脱硫装置の断面図であ
る。
FIG. 1 is a sectional view of a flue gas desulfurization apparatus according to an embodiment of the present invention.

【符号の説明】[Explanation of symbols]

10 排煙脱硫装置 20 脱硫器 30 ガス導入室 30a ガス入口 30b ガス吹出口 32 スプレーノズル 40 渦流処理室 41 渦流発生部 42 上傾斜通路部 52 廃液部 60 液溜まり部 62 ドレン部 70 仕切り板 71 整流板 a 脱硫処理液 b 処理ガス b′ 処理済ガス c ダスト 10 Flue Gas Desulfurizer 20 Desulfurizer 30 Gas Introductory Room 30a Gas Inlet 30b Gas Outlet 32 Spray Nozzle 40 Vortex Treatment Chamber 41 Vortex Flow Generation Section 42 Upper Sloping Passage Section 52 Waste Liquid Section 60 Liquid Reservoir Section 62 Drain Section 70 Partition Plate 71 Rectification Plate a Desulfurization treatment liquid b Treatment gas b ′ Treated gas c Dust

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 FI 技術表示箇所 B01D 47/06 ZAB Z 50/00 501 H L 502 B 53/18 E 53/34 ZAB (72)発明者 安宗 武敏 神奈川県川崎市川崎区大川町2番1号 三 菱化工機株式会社内 (72)発明者 田口 めぐみ 神奈川県川崎市川崎区大川町2番1号 三 菱化工機株式会社内─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI Technical display location B01D 47/06 ZAB Z 50/00 501 H L 502 B 53/18 E 53/34 ZAB (72) Inventor Taketoshi Anso 2-1, Okawa-cho, Kawasaki-ku, Kawasaki-shi, Kanagawa Sanryo Kako Co., Ltd. (72) Inventor, Megumi Taguchi 2-1, Okawa-cho, Kawasaki-ku, Kawasaki-shi, Kanagawa Sanryo Kakoki Co., Ltd.

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 脱硫器内の内部が、横方向の一端部、中
央部そして他端部の順に、上部に処理ガスのガス入口
が、下部にガス吹出口が形成されて、室内に脱硫処理液
用のスプレーノズルが設けられたガス導入室と、該ガス
導入室のガス吹出口に連通されて、上流側の上部にほぼ
円筒状の渦流発生部が設けられ、下流側には上端部が下
方へ湾曲する上傾斜通路部が設けられた渦流処理室と、
該渦流処理室の上傾斜通路部に連通されて、上部に処理
済ガスのガス出口が形成されたガス排出室とに区画さ
れ、また前記脱硫器の下部に、前記スプレーノズルから
噴出された脱硫処理液や処理ガス中から除塵されたダス
トを溜める液溜まり部が設けられた排煙脱硫装置におい
て、 前記ガス導入室の下部から前記渦流処理室の上流下部に
かけて、前記液溜まり部から前記ガス吹出口を底上げす
る仕切り板が設けられ、また前記液溜まり部の底面と、
前記渦流処理室の上傾斜通路部の下壁である案内板の下
端との間にダスト排出隙間が形成され、そして該仕切り
板のガス吹出口付近に、前記噴出された脱硫処理液およ
び前記処理ガスを、前記渦流処理室の渦流発生部へ導入
させる整流板を設けたことを特徴とする排煙脱硫装置。
1. A desulfurization process is performed inside a desulfurizer in which a gas inlet for a processing gas is formed in an upper part and a gas outlet is formed in a lower part in the order of one end, a central part and the other end in a lateral direction. A gas introducing chamber provided with a spray nozzle for liquid and a gas outlet of the gas introducing chamber are connected to each other, a substantially cylindrical vortex flow generating portion is provided at an upper portion on an upstream side, and an upper end portion is provided on a downstream side. A vortex flow treatment chamber provided with an upper inclined passage portion that curves downward,
The desulfurization unit is connected to the upper inclined passage of the swirl treatment chamber and is divided into a gas discharge chamber having a gas outlet of the treated gas formed at the upper portion, and desulfurization ejected from the spray nozzle at the lower portion of the desulfurizer. In a flue gas desulfurization device provided with a liquid pool part for collecting dust removed from the processing liquid or the processing gas, from the lower part of the gas introduction chamber to the lower upstream part of the swirl processing chamber, the gas blowing from the liquid pool part A partition plate that raises the outlet bottom is provided, and the bottom surface of the liquid pool section,
A dust discharge gap is formed between the swirl treatment chamber and the lower end of the guide plate which is the lower wall of the upper inclined passage portion, and the jetted desulfurization treatment liquid and the treatment are provided in the vicinity of the gas outlet of the partition plate. A flue gas desulfurization apparatus comprising a rectifying plate for introducing gas into a vortex flow generating portion of the vortex flow processing chamber.
【請求項2】 前記液溜まり部に、該液溜まり部の水位
を、前記案内板の下端上部に保持する廃液部を設けた請
求項1に記載の排煙脱硫装置。
2. The flue gas desulfurization apparatus according to claim 1, wherein a waste liquid portion that holds the water level of the liquid pool portion above the lower end of the guide plate is provided in the liquid pool portion.
【請求項3】 前記液溜まり部に、該液溜まり部の底面
に堆積した前記ダストを排出するドレン部を設けた請求
項1または2に記載の排煙脱硫装置。
3. The flue gas desulfurization apparatus according to claim 1, wherein the liquid pool portion is provided with a drain part for discharging the dust accumulated on the bottom surface of the liquid pool portion.
JP03779795A 1995-02-03 1995-02-03 Flue gas desulfurization equipment Expired - Fee Related JP3517298B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP03779795A JP3517298B2 (en) 1995-02-03 1995-02-03 Flue gas desulfurization equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP03779795A JP3517298B2 (en) 1995-02-03 1995-02-03 Flue gas desulfurization equipment

Publications (2)

Publication Number Publication Date
JPH08206449A true JPH08206449A (en) 1996-08-13
JP3517298B2 JP3517298B2 (en) 2004-04-12

Family

ID=12507497

Family Applications (1)

Application Number Title Priority Date Filing Date
JP03779795A Expired - Fee Related JP3517298B2 (en) 1995-02-03 1995-02-03 Flue gas desulfurization equipment

Country Status (1)

Country Link
JP (1) JP3517298B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007175617A (en) * 2005-12-27 2007-07-12 Morihiro Saito Method and apparatus for cleaning exhaust gas from incineration furnace
KR102150603B1 (en) * 2019-03-07 2020-09-01 제이트러스트(주) An apparatus for processing exhaust gas and system using the same
CN115253416A (en) * 2022-07-26 2022-11-01 上海净豚环保科技有限公司 Treatment process of neomycin sulfate pharmaceutical wastewater

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101620965B1 (en) * 2014-02-20 2016-05-13 한국산업은행 all-in-one dust collector

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007175617A (en) * 2005-12-27 2007-07-12 Morihiro Saito Method and apparatus for cleaning exhaust gas from incineration furnace
KR102150603B1 (en) * 2019-03-07 2020-09-01 제이트러스트(주) An apparatus for processing exhaust gas and system using the same
CN115253416A (en) * 2022-07-26 2022-11-01 上海净豚环保科技有限公司 Treatment process of neomycin sulfate pharmaceutical wastewater
CN115253416B (en) * 2022-07-26 2023-07-28 上海净豚环保科技有限公司 Neomycin sulfate pharmaceutical wastewater treatment equipment and neomycin sulfate pharmaceutical wastewater treatment process

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