JPH06198121A - Wet flue gas desulfurizer equipped with adsorption tower - Google Patents

Wet flue gas desulfurizer equipped with adsorption tower

Info

Publication number
JPH06198121A
JPH06198121A JP5000846A JP84693A JPH06198121A JP H06198121 A JPH06198121 A JP H06198121A JP 5000846 A JP5000846 A JP 5000846A JP 84693 A JP84693 A JP 84693A JP H06198121 A JPH06198121 A JP H06198121A
Authority
JP
Japan
Prior art keywords
spray
nozzle
stages
absorption tower
nozzles
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.)
Pending
Application number
JP5000846A
Other languages
Japanese (ja)
Inventor
Takayuki Ishida
Hiroshi Masutomi
Hajime Okura
一 大倉
博 益冨
孝行 石田
Original Assignee
Babcock Hitachi Kk
バブコック日立株式会社
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 Babcock Hitachi Kk, バブコック日立株式会社 filed Critical Babcock Hitachi Kk
Priority to JP5000846A priority Critical patent/JPH06198121A/en
Publication of JPH06198121A publication Critical patent/JPH06198121A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To improve the utilization factor of a space, to lower the height of a spray adsorption tower and to improve the profitability by providing the spray nozzles of the front stage and back stage of those in plural stages having the spray directions parallel and opposite to that of the flow of gas respectively one after the other and also causing no interference between then. CONSTITUTION:Spray piping 4 in plural stages is installed in a wet flue gas desulfurizer and spray nozzles 7 in plural stages provided on the piping 4 are divided into those of the front stage and back stage. And upward nozzles 7 and downward nozzles 7 are arranged so that their openings may not face each other to perform both opposite spraying and parallel spraying. And spaces are left between the spray nozzles so that no interference between the opposite and parallel spraying may be caused. Therefore two-fold spray is made.

Description

【発明の詳細な説明】Detailed Description of the Invention
【0001】[0001]
【産業上の利用分野】本発明は脱硫装置に係り、特に、
空間効率良く吸収剤のスプレを行うのに好適な吸収塔を
備えた湿式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 desulfurizer,
The present invention relates to a wet flue gas desulfurization apparatus equipped with an absorption tower suitable for spraying an absorbent with space efficiency.
【0002】[0002]
【従来の技術】ボイラ排煙中に含まれる硫黄酸化物を除
去する石灰石−石膏法湿式排煙脱硫装置において、ボイ
ラ排ガスの冷却・除塵・吸収を一つの塔で連続して行う
一塔型スプレ式吸収塔であって、スプレ段四段を備えた
場合の概略構造を図6に示す。図6において、被処理ガ
スはガス入口1からスプレ式吸収塔9に導入され、スプ
レ式吸収塔9の下部に設置された冷却液スプレ配管2か
らスプレされる吸収液により、冷却・除塵され、ガス分
散板3を通ってガスの流れは均一化された後、吸収液ス
プレ配管4に設置された吸収液スプレノズル7より円錐
状に噴霧される吸収液スラリの微細な液滴と対向状態で
気液接触して、ガス中の硫黄酸化物を吸収する。ガス中
の硫黄酸化物を吸収した後、スプレ式吸収塔9の底部に
貯留した吸収液スラリは、循環ポンプ8により吸収液ス
プレ配管4に運ばれ、循環して使用される。また吸収塔
9からの飛散ミストはガス出口6に配置されるミストエ
リミネータ5により除去された後、処理ガスは大気中に
排出される。
2. Description of the Related Art In a limestone-gypsum method wet flue gas desulfurization system for removing sulfur oxides contained in boiler flue gas, a single tower spray is used for continuously cooling, removing dust and absorbing boiler exhaust gas in one tower. FIG. 6 shows a schematic structure of a type absorption tower having four spray stages. In FIG. 6, the gas to be treated is introduced into the spray type absorption tower 9 through the gas inlet 1, and is cooled and dust-removed by the absorption liquid sprayed from the cooling liquid spray pipe 2 installed in the lower part of the spray type absorption tower 9, After the gas flow is made uniform through the gas dispersion plate 3, it is vaporized in a state of being opposed to the fine droplets of the absorbent slurry which are sprayed in a conical shape from the absorbent spray nozzle 7 installed in the absorbent spray pipe 4. In liquid contact, absorbs sulfur oxides in the gas. After absorbing the sulfur oxides in the gas, the absorbing liquid slurry stored at the bottom of the spray type absorption tower 9 is carried to the absorbing liquid spray pipe 4 by the circulation pump 8 and is circulated for use. Further, after the scattered mist from the absorption tower 9 is removed by the mist eliminator 5 arranged at the gas outlet 6, the processing gas is discharged into the atmosphere.
【0003】また、スプレ式吸収塔9の底部には貯留し
た吸収液スラリの固形分の沈積を防止するために撹拌機
12を設けるとともに、酸化用撹拌機11を設けてこの
撹拌機11の周囲から酸化用空気を注入し、硫黄酸化物
の吸収反応で生成した亜硫酸カルシウムを酸化させて石
膏を生成する。硫黄酸化物の吸収剤である石灰石スラリ
は、石灰石スラリ供給配管13によりスプレ式吸収塔9
に供給され、吸収液スラリの一部は吸収液スラリ抜出配
管14によりスプレ式吸収塔9の外へ抜き出され、吸収
反応により副生した石膏が回収される。
Further, a stirrer 12 is provided at the bottom of the spray type absorption tower 9 to prevent the solid content of the stored absorbent slurry, and an agitator 11 for oxidation is provided to surround the stirrer 11. Oxidizing air is injected from here to oxidize the calcium sulfite produced by the sulfur oxide absorption reaction to produce gypsum. The limestone slurry, which is a sulfur oxide absorbent, is supplied to the spray type absorption tower 9 through the limestone slurry supply pipe 13.
Part of the absorption liquid slurry is discharged to the outside of the spray absorption tower 9 through the absorption liquid slurry extraction pipe 14, and the gypsum by-produced by the absorption reaction is recovered.
【0004】スプレ式吸収塔9では図7に例示するよう
に、硫黄酸化物を除去するために、吸収液スプレノズル
7より下向き円錐状に吸収液スラリを噴霧し、未処理ガ
スに吸収液スラリを向流接触させる。このとき、図7に
斜線で示す噴霧を行わない流域A部がある。吸収液スプ
レ配管4の段数は、被処理ガス中の硫黄酸化物濃度およ
び要求される吸収性能によっても異なるが、通常は3〜
6段、場合によっては6段以上の場合もあり、吸収液ス
プレノズル7の各段は図6に示すように互いに等間隔L
で設定されている。
In the spray type absorption tower 9, as shown in FIG. 7, in order to remove sulfur oxides, the absorption liquid slurry is sprayed downward from the absorption liquid spray nozzle 7 in a conical shape, and the absorption liquid slurry is applied to the untreated gas. Contact countercurrently. At this time, there is a basin A part in which the spraying is not performed, which is shown by hatching in FIG. The number of stages of the absorption liquid spray pipe 4 varies depending on the concentration of sulfur oxides in the gas to be treated and the required absorption performance, but is usually 3 to.
There are 6 stages, and sometimes 6 stages or more, and the stages of the absorbing liquid spray nozzle 7 are equidistant from each other as shown in FIG.
Is set in.
【0005】図8には吸収液スプレ配管4の各段におけ
る吸収液スプレノズル7の配置状態を示す。吸収液スプ
レノズル7から噴霧される液滴は、互いに衝突しないよ
うに同一段の各吸収液スプレノズル7は図8(a)、
(b)に示すように上段、下段共に正方形のコーナー部
に整列されて配置されており、上段スプレノズル7aと
下段スプレノズル7bが相互に組合わされ、例えば、ス
プレ段数が4段の場合、ガス流れ方向に図8(b)、
(a)、(b)、(a)に示す順に組み合わせられて図
8(c)のように配置される。スプレ式吸収塔9の上部
から上段スプレノズル7aと下段スプレノズル7bの配
置を見ると、図8(c)のようになり、上段スプレノズ
ル7aと下段スプレノズル7bは各々が他の段のスプレ
ノズル7の成す正方形の中心に位置するように配置され
ている。
FIG. 8 shows the arrangement of the absorbent spray nozzle 7 in each stage of the absorbent spray pipe 4. The liquid droplets sprayed from the absorbing liquid spray nozzle 7 are shown in FIG.
As shown in (b), both the upper and lower stages are aligned and arranged in a square corner portion, and the upper spray nozzle 7a and the lower spray nozzle 7b are combined with each other. For example, when the number of spray stages is 4, the gas flow direction is 8 (b),
8A, 8B and 8A are combined in the order shown and arranged as shown in FIG. 8C. The arrangement of the upper stage spray nozzle 7a and the lower stage spray nozzle 7b from the upper part of the spray type absorption tower 9 is as shown in FIG. 8C, and the upper stage spray nozzle 7a and the lower stage spray nozzle 7b are squares formed by the spray nozzles 7 of other stages. It is arranged to be located in the center of the.
【0006】[0006]
【発明が解決しようとする課題】上記従来技術のスプレ
塔式の気液接触装置は、スプレ液滴の拡散に一定のスペ
ースが必要であるため、スプレ配管4の段数が多い場
合、スプレ式吸収塔9の塔高が高くなるという問題があ
った。本発明の目的は、吸収液スプレ式吸収塔の気液接
触吸収装置であるスプレノズルの配置構造を見直して空
間利用率を上げ、スプレ式吸収塔の塔の高さを低くし、
経済性を改善した湿式排煙脱硫装置を提供することにあ
る。
The above-mentioned spray tower type gas-liquid contactor of the prior art requires a certain space for diffusion of the spray droplets, so that when the number of stages of the spray pipe 4 is large, the spray type absorption device is used. There was a problem that the tower height of the tower 9 becomes high. The object of the present invention is to improve the space utilization rate by reviewing the arrangement structure of the spray nozzle, which is a gas-liquid contact absorption device of an absorption liquid type absorption tower, and lower the height of the spray type absorption tower,
(EN) It is intended to provide a wet flue gas desulfurization device with improved economy.
【0007】[0007]
【課題を解決するための手段】本発明の上記目的は次の
構成によって達成される。すなわち、ガス流れ方向に対
し多段に配置されたスプレノズルから吸収液を噴霧し、
排ガス中の硫黄酸化物を除去する吸収塔を備えた湿式排
煙脱硫装置において、複数段のスプレノズルは前流段と
後流段のスプレノズルの噴霧方向をガス流に対し交互に
配置した対向噴霧、並行噴霧の組み合わせとし、しか
も、対向、並行噴霧がお互いに干渉しないようスプレノ
ズル段の間隔を設けた吸収塔を備えた湿式排煙脱硫装
置、または、ガス流れ方向に対し多段に配置されたスプ
レノズルから吸収液を噴霧し、排ガス中の硫黄酸化物を
除去する吸収塔を備えた湿式排煙脱硫装置において、複
数段のスプレノズルの各々には上向きノズルと下向きノ
ズルを設け、前流段と後流段のスプレノズルの各々の上
向きノズルと下向きノズルの対向する噴霧方向がお互い
に干渉しないようスプレノズルを配置した吸収塔を備え
た湿式排煙脱硫装置である。
The above objects of the present invention can be achieved by the following constitutions. That is, the absorbing liquid is sprayed from the spray nozzles arranged in multiple stages in the gas flow direction,
In a wet flue gas desulfurization apparatus having an absorption tower for removing sulfur oxides in exhaust gas, a plurality of spray nozzles are opposed sprays in which the spray directions of the spray nozzles of the upstream and downstream stages are alternately arranged with respect to the gas flow, From a combination of parallel spraying, and a wet flue gas desulfurization device equipped with an absorption tower with spray nozzle stages spaced so that opposing sprays do not interfere with each other, or spray nozzles arranged in multiple stages in the gas flow direction In a wet flue gas desulfurization device equipped with an absorption tower that sprays the absorbing liquid and removes sulfur oxides in the exhaust gas, each of the spray nozzles in multiple stages is provided with an upward nozzle and a downward nozzle, and the upstream and downstream stages are provided. In the wet flue gas desulfurization equipment equipped with an absorption tower in which spray nozzles are arranged so that the upward spraying direction and the downward spraying direction of each spray nozzle do not interfere with each other. That.
【0008】[0008]
【作用】本発明は、従来技術の図7に斜線で示す下向ス
プレノズルで噴霧を行わない流域A部に対し、ガス流れ
に対し並行流となるように上向スプレノズルからの噴霧
を行いスペースを有効利用するものである。前述の図7
の流域A部に対してスプレを行う場合のイメージを図2
に示す。図中○印が下向スプレのノズル位置、×印が上
向スプレのノズル位置を示す。図2において、従来構造
である下向スプレに対し、斜線で示す上向スプレを互い
に干渉しないレベルから行うことにより、同一空間で従
来の2倍量のスプレが行えることとなり、前記図7の流
域A部の空間の有効利用が可能となる。また、図2に示
すように、上向スプレと下向スプレは噴霧された液滴の
飛跡が互いに干渉することはないため、吸収性能が低下
することはない。
In the present invention, the space is provided by spraying from the upward spray nozzle so as to be a parallel flow to the gas flow in the region A where the downward spray nozzle shown in FIG. It is used effectively. Figure 7 above
Figure 2 shows an image of spraying the basin A of
Shown in. In the figure, the ∘ mark indicates the nozzle position of the downward spray, and the × mark indicates the nozzle position of the upward spray. In FIG. 2, the downward spray having the conventional structure is subjected to the upward spray indicated by the diagonal lines from a level where they do not interfere with each other, so that a double amount of the conventional spray can be performed in the same space. It is possible to make effective use of the space of part A. Further, as shown in FIG. 2, the upward spray and the downward spray do not interfere with each other in the traces of the sprayed droplets, so that the absorption performance does not deteriorate.
【0009】[0009]
【実施例】本発明の一実施例を図1と図2を用いて説明
する。図1は本実施例のスプレ式吸収塔の概略構造を示
し、吸収液スプレノズル7の配置以外の構成は図6に示
した従来のスプレ式吸収塔9と同一である。図2に図1
のスプレノズル7の構成における吸収液スプレのイメー
ジ図を示し、その詳細は前述の作用欄に記載の通りであ
る。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. FIG. 1 shows a schematic structure of a spray type absorption tower of the present embodiment, and the configuration other than the arrangement of the absorbing liquid spray nozzle 7 is the same as the conventional spray type absorption tower 9 shown in FIG. 1 in FIG.
An image diagram of the absorbing liquid spray in the configuration of the spray nozzle 7 is shown, and details thereof are as described in the above-mentioned action column.
【0010】すなわち、図1は従来技術で説明した図8
(b)の下向ノズル7bの配置を180°回転させ上向
ノズルとして、図2に示すように下向スプレの円錐状に
拡がるスキ間に配置したものであり、スプレ段数は4段
でありながら図中の上向ノズル7の吸収液スプレ配管4
と下向ノズル7の吸収液スプレ配管4の各々のノズル7
の開口が向かい合わない吸収液スプレ配管4の間隔L1
を図6に示す従来技術の各吸収液スプレ配管4の間隔L
に対して小さくしたものである。なお、図1において前
記各々のノズル7の開口が向かい合わない吸収液スプレ
配管4の間隔L1と各々のノズル開口が向き合う上向と
下向のノズル7の吸収液スプレ配管4の間隔L2は、図
2に示すように下向スプレの拡がりの空いた空間に上向
スプレを行うため、図6の各吸収液スプレ配管4の間隔
Lに対して、L=L1+L2となる。
That is, FIG. 1 corresponds to FIG. 8 described in the prior art.
(B) The downward nozzle 7b is rotated by 180 ° as an upward nozzle and is arranged between the gaps that spread in a conical shape of the downward spray as shown in FIG. 2, and the number of spray stages is four. While the upward spray nozzle 7 in the figure, the absorbent spray pipe 4
And each nozzle 7 of the absorbent spray pipe 4 of the downward nozzle 7
Of the absorption liquid spray pipe 4 where the openings of the two do not face each other L 1
Fig. 6 shows a space L between the absorbent spray pipes 4 of the prior art.
It is a small one. In FIG. 1, the interval L 1 between the absorbent spray pipes 4 in which the openings of the nozzles 7 do not face each other and the interval L 2 between the absorbent spray lines 4 of the upward and downward nozzles 7 in which the nozzle openings face each other are: As shown in FIG. 2, since the upward spray is performed in the space in which the downward spray is wide, L = L 1 + L 2 with respect to the interval L between the absorbent spray pipes 4 in FIG. 6.
【0011】吸収液スプレ配管4の段数が4段の場合に
は、このスプレ段の全間隔は図6に示す従来技術のスプ
レ式吸収塔9の場合、ガス分散板3から間隔4Lが必要
であるのに対して、本実施例の場合、図1に示すように
間隔2Lで良い。この場合、吸収液循環ポンプ8のヘッ
ドも低くなるため、ランニングコスト面で経済的にな
る。例えば図6の場合の循環ポンプヘッドが31mであ
る場合には、図1の場合は同じスプレ装置を用いても2
8mとなり、電力は約一割低減できる{(31−28)
/31≒0.1}。
When the number of stages of the absorbing liquid spray pipe 4 is 4, in the case of the conventional spray type absorption tower 9 shown in FIG. 6, the interval between the spray stages is 4 L from the gas dispersion plate 3. On the other hand, in the case of the present embodiment, the interval 2L is sufficient as shown in FIG. In this case, the head of the absorbent circulating pump 8 is also lowered, which makes the running cost economical. For example, when the circulation pump head in the case of FIG. 6 is 31 m, even if the same spray device is used in the case of FIG.
It will be 8 m, and the power can be reduced by about 10% {(31-28)
/31≈0.1}.
【0012】また、図3に示すように各々の吸収液スプ
レ配管4の段において上下方向に吸収液をスプレ可能な
吸収液スプレノズル7を設けた例を示す。図3の場合は
吸収液スプレ配管4は図1に示すものに比べて、二倍の
容量が必要であるが、上向ノズルからのスプレと下向ノ
ズルからは図2に示す場合と同様に隣接段の上向ノズル
または下向ノズルによるスプレの円錐状に拡がるスキ間
にそれぞれスプレされるように配置したものであり、4
段のスプレ段数を二本の吸収液スプレ配管4を用いて達
成できるのでスプレ段の全間隔は本実施例の場合、図3
に示すように間隔2Lで良い(図6の場合は4L必
要)。図4は図3における吸収液スプレノズル7の取り
付け状態図を示し、図5は図3に示す場合の被処理ガス
が通過するイメージを示す。
Further, as shown in FIG. 3, there is shown an example in which an absorption liquid spray nozzle 7 capable of spraying the absorption liquid in the vertical direction is provided at the stage of each absorption liquid spray pipe 4. In the case of FIG. 3, the absorption liquid spray pipe 4 needs to have a capacity twice as large as that shown in FIG. 1, but the spray from the upward nozzle and the downward nozzle are the same as those shown in FIG. The nozzles are arranged so as to be sprayed between the conical spreads of the spray by the upward nozzles or the downward nozzles of the adjacent stage.
Since the number of spray stages can be achieved by using two absorbing solution spray pipes 4, the total spacing of the spray stages is as shown in FIG.
As shown in, the interval of 2 L is sufficient (4 L is required in the case of FIG. 6). FIG. 4 shows a mounting state diagram of the absorbent spray nozzle 7 in FIG. 3, and FIG. 5 shows an image of the gas to be processed passing in the case shown in FIG.
【0013】このように、本実施例によれば、従来の下
向きだけのスプレノズル7の配置で発生する吸収液スプ
レ間のスキ間を有効に利用して、下から上向きに吸収液
をスプレすることによりスプレ式吸収塔9の吸収液スプ
レ域を小さくして従来技術と同一性能を得ることが可能
である。また、スプレ域が従来の約半分ですむため、吸
収塔9の高さを低くでき、併せて吸収液スラリのスプレ
静水頭の低下により循環ポンプ8の消費電力を低減でき
る等の経済的効果を得ることができる。本効果はスプレ
段数が多いほど顕著である。
As described above, according to the present embodiment, the absorption liquid is sprayed from the bottom to the top by effectively utilizing the gap between the absorption liquid sprays generated by the conventional arrangement of the spray nozzle 7 facing only downward. Thus, it is possible to reduce the absorption liquid spray area of the spray type absorption tower 9 and obtain the same performance as in the prior art. In addition, since the spray area is about half that of the conventional one, the height of the absorption tower 9 can be reduced, and at the same time, the spray hydrostatic head of the absorbing liquid slurry can be reduced to reduce the power consumption of the circulation pump 8 and other economic effects. Obtainable. This effect is more remarkable as the number of spray stages increases.
【0014】上記実施例は石灰石スラリを吸収剤として
使用する石灰石−石膏法湿式排煙脱硫装置の吸収塔につ
いて述べたが、本発明は全ての種類のスプレ式気液接触
装置にも適用が可能であり、通過するガスおよびスプレ
する液体スプレノズル型式およびスプレ段数について限
定するものではない。
Although the above embodiment describes the absorption tower of the limestone-gypsum method wet flue gas desulfurization apparatus using limestone slurry as an absorbent, the present invention can be applied to all kinds of spray type gas-liquid contactors. However, there is no limitation on the type of gas to be passed and the spray nozzle type and the number of spray stages.
【0015】[0015]
【発明の効果】本発明によれば、吸収液スプレ間のスキ
間を有効に利用することにより、スプレ式吸収塔のスプ
レ域を小さくして脱硫性能を従来と同等にすることが可
能である。また、吸収液のスプレ域が従来の約半分です
むため、吸収塔高を低くでき、併せ吸収液スラリのスプ
レ静水頭の低下により循環ポンプの消費電力を低減でき
る等の経済的効果を得ることができる。
EFFECTS OF THE INVENTION According to the present invention, the desulfurization performance can be made equal to the conventional one by effectively utilizing the gaps between the absorbent liquid sprays and reducing the spray area of the spray type absorption tower. . In addition, since the spray area of the absorbing liquid is about half that of the conventional type, the height of the absorption tower can be lowered, and the economical effect such as the power consumption of the circulation pump can be reduced by lowering the spray hydrostatic head of the absorbing liquid slurry. You can
【図面の簡単な説明】[Brief description of drawings]
【図1】 本発明の一実施例のスプレ式吸収塔の概略構
造図を示す。
FIG. 1 shows a schematic structural diagram of a spray type absorption tower of an embodiment of the present invention.
【図2】 図1の吸収塔に用いるスプレノズルの上向ス
プレと下向スプレの関係を示すイメージ図である。
FIG. 2 is an image diagram showing a relationship between an upward spray and a downward spray of a spray nozzle used in the absorption tower of FIG.
【図3】 本発明の一実施例のスプレ式吸収塔の概略構
造図を示す。
FIG. 3 shows a schematic structural diagram of a spray type absorption tower of an embodiment of the present invention.
【図4】 図3の吸収塔に用いるスプレノズルの取付状
態図である。
FIG. 4 is a view showing a state where a spray nozzle used in the absorption tower of FIG. 3 is attached.
【図5】 図3に示す吸収塔のスプレノズルの周囲を被
処理ガスが通過するイメージを示す図である。
5 is a diagram showing an image in which a gas to be processed passes around a spray nozzle of the absorption tower shown in FIG.
【図6】 従来のスプレ式吸収塔の概略構造を示す図で
ある。
FIG. 6 is a view showing a schematic structure of a conventional spray type absorption tower.
【図7】 従来のスプレノズルの取付およびスプレ状況
を示す図である。
FIG. 7 is a view showing a conventional spray nozzle installation and spray situation.
【図8】 従来のスプレノズルの平面配置を示す図であ
る。
FIG. 8 is a view showing a planar arrangement of conventional spray nozzles.
【符号の説明】[Explanation of symbols]
1…ガス入口、2…冷却液スプレ配管、3…ガス分散
板、4…吸収液スプレ配管、5…ミストエリミネータ、
6…ガス出口、7…吸収液スプレノズル、8…循環ポン
プ、9…スプレ式吸収塔
1 ... Gas inlet, 2 ... Coolant spray pipe, 3 ... Gas dispersion plate, 4 ... Absorber spray pipe, 5 ... Mist eliminator,
6 ... Gas outlet, 7 ... Absorption liquid spray nozzle, 8 ... Circulation pump, 9 ... Spray type absorption tower

Claims (2)

    【特許請求の範囲】[Claims]
  1. 【請求項1】 ガス流れ方向に対し多段に配置されたス
    プレノズルから吸収液を噴霧し、排ガス中の硫黄酸化物
    を除去する吸収塔を備えた湿式排煙脱硫装置において、 複数段のスプレノズルは前流段と後流段のスプレノズル
    の噴霧方向をガス流に対し交互に配置した対向噴霧、並
    行噴霧の組み合わせとし、しかも、対向、並行噴霧がお
    互いに干渉しないようスプレノズル段の間隔を設けたこ
    とを特徴とする吸収塔を備えた湿式排煙脱硫装置。
    1. A wet flue gas desulfurization apparatus equipped with an absorption tower for spraying an absorbing solution from spray nozzles arranged in multiple stages in the gas flow direction to remove sulfur oxides in exhaust gas, The spray directions of the spray nozzles in the upstream and downstream stages are a combination of opposing sprays and parallel sprays that are alternately arranged with respect to the gas flow, and the spacing between the spray nozzles is set so that the opposing sprays and parallel sprays do not interfere with each other. A wet flue gas desulfurization device equipped with a characteristic absorption tower.
  2. 【請求項2】 ガス流れ方向に対し多段に配置されたス
    プレノズルから吸収液を噴霧し、排ガス中の硫黄酸化物
    を除去する吸収塔を備えた湿式排煙脱硫装置において、 複数段のスプレノズルの各々には上向きノズルと下向き
    ノズルを設け、前流段と後流段のスプレノズルの各々の
    上向きノズルと下向きノズルの対向する噴霧方向がお互
    いに干渉しないようスプレノズルを配置したことを特徴
    とする吸収塔を備えた湿式排煙脱硫装置。
    2. A wet flue gas desulfurization apparatus equipped with an absorption tower for spraying an absorption liquid from spray nozzles arranged in multiple stages in the gas flow direction to remove sulfur oxides in exhaust gas, each of the plurality of stages of spray nozzles. In the absorption tower, an upward nozzle and a downward nozzle are provided, and a spray nozzle is arranged so that the spray directions of the upward nozzle and the downward nozzle of each of the spray nozzles in the upstream and downstream stages do not interfere with each other. Wet flue gas desulfurization equipment equipped.
JP5000846A 1993-01-06 1993-01-06 Wet flue gas desulfurizer equipped with adsorption tower Pending JPH06198121A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5000846A JPH06198121A (en) 1993-01-06 1993-01-06 Wet flue gas desulfurizer equipped with adsorption tower

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5000846A JPH06198121A (en) 1993-01-06 1993-01-06 Wet flue gas desulfurizer equipped with adsorption tower

Publications (1)

Publication Number Publication Date
JPH06198121A true JPH06198121A (en) 1994-07-19

Family

ID=11485008

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5000846A Pending JPH06198121A (en) 1993-01-06 1993-01-06 Wet flue gas desulfurizer equipped with adsorption tower

Country Status (1)

Country Link
JP (1) JPH06198121A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7326286B2 (en) 2003-07-11 2008-02-05 Mitsubishi Heavy Industries, Ltd. Exhaust gas treating tower
JP2011255370A (en) * 2010-05-13 2011-12-22 Fujikasui Engineering Co Ltd Wet type flue gas desulfurization apparatus using three-way spray nozzle
EP2463014A1 (en) * 2010-12-10 2012-06-13 Alstom Technology Ltd A wet scrubber comprising deflector plates, and a method of cleaning a process gas
KR101277569B1 (en) * 2011-06-20 2013-06-21 케이씨코트렐 주식회사 Wet scrubber with multi-stage spray structure
EP2859935A1 (en) * 2013-10-11 2015-04-15 Alstom Technology Ltd Method and apparatus for wet desulfurization spray towers

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7326286B2 (en) 2003-07-11 2008-02-05 Mitsubishi Heavy Industries, Ltd. Exhaust gas treating tower
JP2011255370A (en) * 2010-05-13 2011-12-22 Fujikasui Engineering Co Ltd Wet type flue gas desulfurization apparatus using three-way spray nozzle
EP2463014A1 (en) * 2010-12-10 2012-06-13 Alstom Technology Ltd A wet scrubber comprising deflector plates, and a method of cleaning a process gas
WO2012076947A1 (en) * 2010-12-10 2012-06-14 Alstom Technology Ltd A wet scrubber and a method of cleaning a process gas
US9079131B2 (en) 2010-12-10 2015-07-14 Alstom Technology Ltd Wet scrubber and a method of cleaning a process gas
KR101277569B1 (en) * 2011-06-20 2013-06-21 케이씨코트렐 주식회사 Wet scrubber with multi-stage spray structure
EP2859935A1 (en) * 2013-10-11 2015-04-15 Alstom Technology Ltd Method and apparatus for wet desulfurization spray towers
CN104548881A (en) * 2013-10-11 2015-04-29 阿尔斯通技术有限公司 Method and apparatus for wet desulfurization spray towers
US9364781B2 (en) 2013-10-11 2016-06-14 Alstom Technology Ltd Method and apparatus for wet desulfurization spray towers
US9468885B2 (en) 2013-10-11 2016-10-18 General Electric Technology Gmbh Method and apparatus for wet desulfurization spray towers

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