JPS63107731A - Exhaust gas purifying apparatus - Google Patents
Exhaust gas purifying apparatusInfo
- Publication number
- JPS63107731A JPS63107731A JP61252666A JP25266686A JPS63107731A JP S63107731 A JPS63107731 A JP S63107731A JP 61252666 A JP61252666 A JP 61252666A JP 25266686 A JP25266686 A JP 25266686A JP S63107731 A JPS63107731 A JP S63107731A
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- mats
- reticulated
- mat
- main body
- 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
Links
- 230000000630 rising effect Effects 0.000 claims abstract description 4
- 238000010521 absorption reaction Methods 0.000 claims description 31
- 238000000746 purification Methods 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 239000004071 soot Substances 0.000 abstract description 16
- 239000007788 liquid Substances 0.000 abstract description 15
- 239000000428 dust Substances 0.000 abstract description 13
- 239000007921 spray Substances 0.000 abstract description 13
- 238000006477 desulfuration reaction Methods 0.000 abstract description 7
- 230000023556 desulfurization Effects 0.000 abstract description 7
- 238000001816 cooling Methods 0.000 abstract description 4
- 239000003513 alkali Substances 0.000 abstract 1
- 239000013043 chemical agent Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 33
- 101100495256 Caenorhabditis elegans mat-3 gene Proteins 0.000 description 18
- 239000003595 mist Substances 0.000 description 4
- 239000000779 smoke Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229910052815 sulfur oxide Inorganic materials 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 206010034719 Personality change Diseases 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 239000011419 magnesium lime Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は燃焼ガス・排ガス中に含まれる有害成分、煤塵
などを吸収・除去する排煙浄化装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an exhaust gas purification device that absorbs and removes harmful components, soot, and the like contained in combustion gas and exhaust gas.
石油燃料の燃焼により生じた排ガス中には硫黄酸化物、
煤塵などの有害物質が多量に含まれている。この有害成
分を除去するため、ボイラー等の排気管路に湿式の脱硫
装置を内蔵した吸収塔を介装し、この吸収塔内を通して
排ガスを大気中に放出している。Sulfur oxides,
Contains large amounts of harmful substances such as soot and dust. In order to remove these harmful components, an absorption tower with a built-in wet desulfurization device is installed in the exhaust pipe of a boiler or the like, and the exhaust gas is released into the atmosphere through the absorption tower.
排煙脱硫装置の吸収塔が一般の化学工業に用いられる吸
収塔と大きく異なる点は、ボイラー等の排ガス中に大量
の煤塵が含まれていることに基づくその捕集機能である
。特にボイラーにあっては木管の周囲に付着した煤塵を
除去するため、定期的に高圧のスプレーを吹付けてこれ
を除去する操作(スーツブロー)が行われるため、一度
に大量の煤塵が吸収塔内に入り、塔内に設けられた網状
物、充填層に目詰りを生じやすい。Absorption towers for flue gas desulfurization equipment differ greatly from absorption towers used in the general chemical industry in their collection function, which is based on the fact that a large amount of soot and dust is contained in the exhaust gas from boilers and the like. In particular, in boilers, in order to remove soot and dust attached around the wood pipes, a high-pressure spray is periodically applied to remove it (suit blow), so a large amount of soot and dust is thrown into the absorption tower at once. This tends to cause clogging of the mesh and packed bed installed inside the tower.
現実に効率のよいといわれる充填層スプレ一式吸収塔で
は目詰りが大きな問題となっている。一方、多孔板モレ
タナ式、衝撃管式、浮遊ボールコンタクト式吸収塔では
目詰りの問題は比較的解消され、設計ガス量の下では大
きな偉力を発揮するが、排ガス量が大きく変動したとき
にはその変動に追従できず、浄化能力が大きく低下する
という欠点がある。In fact, clogging is a major problem in packed bed spray absorption towers, which are said to be highly efficient. On the other hand, with perforated plate Moretana type, shock tube type, and floating ball contact type absorption towers, the problem of clogging is relatively eliminated and they exhibit great performance under the design gas volume, but when the exhaust gas volume fluctuates significantly, the problem of clogging is relatively eliminated. It has the disadvantage that it cannot follow the flow and the purification ability is greatly reduced.
本発明の目的は上記問題点を解消し、排気ガス量の大小
にかかわらず浄化能力除塵効率に優れた排煙浄化装置を
提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and to provide an exhaust gas purification device that has excellent purification ability and dust removal efficiency regardless of the amount of exhaust gas.
本発明は排ガスの送入口を下部に有する吸収塔本体内に
薬剤を散布する吸収用ノズルを備え、該吸収用ノズルの
直下に、吸収塔本体内を上昇する排ガスのガス流に対し
、角度をなして2以上の網状マットを平行に配設したこ
とを特徴とする排煙浄化装置、特に前記網状マットの設
置角度を垂直軸に対し左右に変更可能とした排煙浄化装
置である。The present invention is equipped with an absorption nozzle for dispersing chemicals into the absorption tower main body which has an exhaust gas inlet at the bottom, and is installed directly below the absorption nozzle at an angle with respect to the gas flow of the exhaust gas rising inside the absorption tower main body. This exhaust gas purification device is characterized in that two or more reticulated mats are arranged in parallel, and in particular, the installation angle of the reticulated mats can be changed from side to side with respect to a vertical axis.
以下に本発明の実施例を図によって説明する。 Embodiments of the present invention will be described below with reference to the drawings.
第4図において、吸収塔本体1内に一定間隔を置いて上
下2段に吸収液スプレー2,2.・・・の列を設置し、
上下段のスプレー2の列の間に網状マット3の列を配設
する。吸収塔本体1はその下部に排ガスの送入口4を有
し、この送入口4に連通ずる送入管5内には排ガスの冷
却部を形成する吸収液スプレー6が上下に設置されてい
る。吸収塔本体1の底部には一定高さの範囲にわたって
吸収液の液槽7が形成されており、該液槽7内と、前記
上下段の吸収液スプレー2,2.・・・および冷却部の
スプレー6とを各々ポンプ8,9にて接続する。ボイラ
ー10の煙管11は前記送入管5に接続されている。In FIG. 4, absorption liquid sprays 2, 2. Set up a column of...
A row of reticulated mats 3 is arranged between the upper and lower rows of sprays 2. The absorption tower main body 1 has an exhaust gas inlet 4 in its lower part, and in an inlet pipe 5 communicating with the inlet 4, absorption liquid sprays 6 forming exhaust gas cooling sections are installed above and below. A liquid tank 7 for absorbing liquid is formed at the bottom of the absorption tower main body 1 over a certain height range, and the inside of the liquid tank 7 and the absorption liquid sprays 2, 2 . ... and the spray 6 of the cooling section are connected by pumps 8 and 9, respectively. The smoke pipe 11 of the boiler 10 is connected to the feed pipe 5.
第2図に本発明の主要部をなす網状マット3の構造を示
す0本実施例に用いる網状マット3は一定間隔をもって
上下に配置した2本の軸12.13間に極細線をループ
状に編成したワイヤーメツシュを1〜数回掛は渡して所
要厚みの網状マット3に構成したものである。この網状
マット3は表面にループ状ワイヤーの凹凸が形成され、
マット3内の空隙率は99.5%以上である。しかしな
がら、本発明に用いる網状マット3は必ずしも上記構造
に限られるものではなく、空隙率の高いマットを保型し
て上下を軸支しうるちのであればよい。Fig. 2 shows the structure of the reticulated mat 3 which is the main part of the present invention.The reticulated mat 3 used in this embodiment is made by looping ultra-fine wires between two shafts 12 and 13 arranged above and below at a constant interval. The knitted wire mesh is passed one to several times to form a reticulated mat 3 of a required thickness. This reticulated mat 3 has irregularities of looped wires formed on its surface.
The porosity within the mat 3 is 99.5% or more. However, the reticulated mat 3 used in the present invention is not necessarily limited to the above-mentioned structure, and may be any structure as long as it retains its shape and supports the upper and lower sides of the mat with high porosity.
第2図に示す2以上の網状マット3,3.・・・を第1
図に示すように一定間隔を置いて平行に配列し。Two or more reticulated mats 3, 3. shown in FIG. ... as the first
Arrange them in parallel at regular intervals as shown in the figure.
網状マット3を支える上軸12を吸収塔本体1の内壁に
回転可能に横架させ、下軸13を共通の制御杆14に連
結する。この制御杆14の一端を吸収塔本体1の外部へ
引き出し、自動的又は手動操作で往復動させることによ
り、上軸12を中心として各網状マット3は左右に傾動
可能となる。その振れの範囲を例えば左右に45〜60
°の範囲に設定し、各網状マット3の姿勢を垂直を含む
適当な角度姿勢にセットする。An upper shaft 12 supporting the reticulated mat 3 is rotatably suspended horizontally on the inner wall of the absorption tower main body 1, and a lower shaft 13 is connected to a common control rod 14. By pulling one end of the control rod 14 out of the absorption tower main body 1 and reciprocating it automatically or manually, each reticulated mat 3 can be tilted left and right about the upper shaft 12. For example, set the range of deflection to 45 to 60 to the left and right.
The position of each reticulated mat 3 is set to an appropriate angular position including vertical position.
実施例において、ポンプ8,9の起動により、冷却部お
よび吸収塔本体1内のスプレー2,2.・・・、6゜6
、・・・より吸収液(アルカリ液)を噴出してこれを循
環させ、ボイラー10からの排ガスを導入する。In the embodiment, by starting the pumps 8, 9, the sprays 2, 2, . ..., 6゜6
, . . . spouts an absorption liquid (alkaline liquid) and circulates it, and introduces exhaust gas from the boiler 10.
排ガスは一般に温度150℃〜250℃で大量のSOx
と煤塵を含み、水分は8%程度である。高温の排ガスは
先ず冷却部にて80℃〜90℃に冷却増湿され、吸収塔
本体1内に入る。吸収塔本体1内に導入された排ガスは
スプレー2,2.・・・からの吸収液の散布を受けなが
ら上昇し、上昇途中で吸収液に十分に濡らされた網状マ
ット3の空隙を通り、マット3の線条に触れ、排ガスの
脱硫並びに煤煙の除去が行われる。網状マット3を通過
した排ガスは増湿により大量のミストを含んでいる。こ
のミストを吸収塔本体1内の上段に設置したミストセパ
レータ15で除去して排ガスを大気中へ放出する。Exhaust gas generally has a temperature of 150℃ to 250℃ and contains a large amount of SOx.
It contains soot and dust, and has a moisture content of about 8%. The high-temperature exhaust gas is first cooled and humidified to 80°C to 90°C in the cooling section, and then enters the absorption tower main body 1. The exhaust gas introduced into the absorption tower main body 1 is sprayed into sprays 2, 2. It rises while being sprayed with absorption liquid from ..., and on the way up, it passes through the gaps in the reticulated mat 3 that are sufficiently wetted with the absorption liquid, and touches the filaments of the mat 3, which desulfurizes the exhaust gas and removes soot and smoke. It will be done. The exhaust gas that has passed through the reticulated mat 3 contains a large amount of mist due to increased humidity. This mist is removed by a mist separator 15 installed at the upper stage within the absorption tower main body 1, and the exhaust gas is released into the atmosphere.
なお、このミストセパレータ15には網状マット3と同
一材質のものを使用できる。もっとも、セパレータの目
的にもよるが、一般には網状マットの厚味より薄く設定
する。網状マット3には排ガス中に含まれた煤煙が付着
して堆積し、これがいわゆる目詰りの原因になるのは本
発明においても従来と同じである。The mist separator 15 can be made of the same material as the reticulated mat 3. However, although it depends on the purpose of the separator, it is generally set to be thinner than the thickness of the reticulated mat. In the present invention, the soot contained in the exhaust gas adheres and accumulates on the reticulated mat 3, causing so-called clogging, as in the prior art.
しかし、本発明では、マットの汚染の程度に応じて網状
マットの角度姿勢を制御することにより目詰りを解消し
ている。However, in the present invention, clogging is eliminated by controlling the angular posture of the reticulated mat depending on the degree of contamination of the mat.
第3図(a)において、まず、各網状マット3を一斉に
左右いずれかの方向に傾け、例えば右上りの姿勢に傾け
てセットする。各網状マット3の隣接相互間の間隔の規
制により、マットの傾斜姿勢では必ず、隣接マット間に
垂直方向の重畳部分が生じ、排ガスの殆どはマット内を
通過して上昇する。In FIG. 3(a), first, each net-like mat 3 is tilted all at once in either the left or right direction, for example, tilted upward to the right and set. Due to the regulation of the spacing between adjacent reticulated mats 3, when the mats are in an inclined position, there is always a vertical overlap between the adjacent mats, and most of the exhaust gas passes through the mats and rises.
排ガス中に含まれた煤煙は主としてマット3の下面側に
付着して堆積する。マット3への煤煙の付着が進むと、
制御杆14の操作により、各々マット3を第3図(b)
に示す垂直姿勢からさらに第3図(c)に示すように逆
転して左上りの傾斜姿勢に転換する。この姿勢転換によ
り、第3図(a)の姿勢で煤煙が付着した面は上面側と
なり、直接上段のスプレー2,2.・・・から噴出され
る吸収液のシャワーを受け、逆洗作用により煤煙が洗い
落され、吸着能力を回復する。以上の操作を繰返すこと
によって長期間にわたり、脱硫、除塵効果を維持させる
ものである。The soot contained in the exhaust gas mainly adheres and accumulates on the lower surface side of the mat 3. As soot and smoke adhere to mat 3,
By operating the control rod 14, each mat 3 is moved as shown in FIG. 3(b).
From the vertical position shown in FIG. 3(c), the robot is further reversed and changed to a tilted position upward to the left. Due to this attitude change, the surface to which soot and smoke adheres in the attitude shown in FIG. It receives a shower of absorbent ejected from ..., and the soot is washed away by the backwashing action, restoring its adsorption capacity. By repeating the above operations, the desulfurization and dust removal effects can be maintained for a long period of time.
本発明において、各網状マットの姿勢制御により、排ガ
スの接触面積の調整が可能であり、また、仮りに網状マ
ット自体に目詰りが生じても、マット間を排ガスが流動
するために排ガスの流動抵抗が過大となることはない。In the present invention, the contact area of exhaust gas can be adjusted by controlling the posture of each reticulated mat, and even if the reticulated mat itself becomes clogged, the exhaust gas can flow between the mats, so that the exhaust gas can flow easily. The resistance will not be excessive.
本発明の効果は以下のとおりである。 The effects of the present invention are as follows.
1) マットの目詰りを防止できる。1) Prevents mat clogging.
マットの姿勢を運転中であっても自由にコントロールで
きること及びスプレー位置を変えないで簡単にマットの
逆洗ができるので、大量の煤塵が集中して飛来しても目
詰りの心配がない。Since the posture of the mat can be freely controlled even while driving and the mat can be easily backwashed without changing the spray position, there is no need to worry about clogging even if a large amount of soot and dust is concentrated and blown away.
2)運転中に除塵効率、脱硫効率とも容易に変えること
ができる。2) Dust removal efficiency and desulfurization efficiency can be easily changed during operation.
マット間の姿勢を変えることによって排ガスとアルカリ
液との接触率が変わるため、除塵効率。Dust removal efficiency is improved because the contact rate between exhaust gas and alkaline solution changes by changing the posture between the mats.
脱硫効率とも自由にコントロールできる。特に排ガス量
の変動に追従してコントロールすることが可能である。Desulfurization efficiency can also be controlled freely. In particular, it is possible to follow and control fluctuations in the amount of exhaust gas.
3)煤塵の除去効率が高く常に一定している。3) The removal efficiency of soot and dust is high and always constant.
常に清浄なワイヤーメツシュ層が保持されているため、
除塵効率は常に一定して高い。Because a clean wire mesh layer is always maintained,
Dust removal efficiency is always consistently high.
4) SOxの除去効率が高く常に一定している。4) SOx removal efficiency is high and always constant.
マットは常に清浄なワイヤーメツシュ層が保持されて閉
塞もなく、排ガスはマット内を均一に流れ、脱硫効率が
高く一定している。The mat always maintains a clean wire mesh layer with no blockage, and the exhaust gas flows uniformly within the mat, resulting in high and constant desulfurization efficiency.
特にアルカリ剤として水酸化マグネシウムや石灰を使用
しても結晶が起らず閉塞しない。In particular, even if magnesium hydroxide or lime is used as an alkaline agent, crystals will not form and blockage will not occur.
5)圧損が小さく常に一定している。5) Pressure loss is small and always constant.
マットに空隙率99.5%以上のワイヤーメツシュ構造
を用いれば、圧損は極めて小さい、特にマットは汚れに
応じて逆洗され、ワイヤーメツシュ構造
ない。If a wire mesh structure with a porosity of 99.5% or more is used for the mat, the pressure loss will be extremely small.In particular, the mat will be backwashed depending on the dirt, and the wire mesh structure will not be used.
6)経済的な運転ができる。6) Able to drive economically.
排ガス量に大きな変動があってもガス量に応じて、マッ
トの姿勢を変えて効率を一定に保つことができるため、
送風機やポンプを排ガス量に追従させ、最も経済的な運
転が可能である。又、アルカリ剤についても無駄な消費
がなくなる。Even if there are large fluctuations in the amount of exhaust gas, the posture of the mat can be changed according to the amount of gas to maintain a constant efficiency.
By making the blower and pump follow the amount of exhaust gas, the most economical operation is possible. Further, wasteful consumption of alkaline agents is also eliminated.
第1図は本発明装置に用いる網状マットの設置例を示す
正面図、第2図は網状マットの構造を示す斜視図、第3
図(a)〜(c)は網状マットの姿勢転換要領を示す説
明図、第4図は本発明装置を装備した吸収塔の略示図で
ある。
1・・・吸収塔・本体 2・・・吸収液スプレ
ー3・・・網状マット 12・・・上軸13・
・・下軸 14・・・制御杆特許出願人
岡 山 繁 久
2明瓜号夜スプレー
(b)
第3図
fifi’
(り
第3図Fig. 1 is a front view showing an installation example of the reticulated mat used in the device of the present invention, Fig. 2 is a perspective view showing the structure of the reticulated mat, and Fig. 3 is a perspective view showing the structure of the reticulated mat.
Figures (a) to (c) are explanatory diagrams showing how to change the posture of the reticulated mat, and Figure 4 is a schematic diagram of an absorption tower equipped with the device of the present invention. 1... Absorption tower/main body 2... Absorption liquid spray 3... Reticulated mat 12... Upper shaft 13.
・・Lower shaft 14・・Control rod patent applicant Shigeru Okayama 2 Meiku No. night spray (b) Fig. 3 fifi' (Fig. 3
Claims (2)
剤を散布する吸収用ノズルを備え、該吸収用ノズルの直
下に、吸収塔本体内を上昇する排ガスのガス流に対し、
角度をなして2以上の網状マットを平行に配設したこと
を特徴とする排煙浄化装置。(1) An absorption nozzle for dispersing chemicals is provided in the absorption tower body having an exhaust gas inlet at the bottom, and a gas flow of exhaust gas rising inside the absorption tower body is provided directly below the absorption nozzle.
An exhaust gas purification device characterized by two or more mesh mats arranged in parallel at an angle.
変更可能とした特許請求の範囲第(1)項に記載の排煙
浄化装置。(2) The exhaust gas purification device according to claim (1), wherein the installation angle of the reticulated mat can be changed to the left or right with respect to the vertical axis.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP61252666A JPS63107731A (en) | 1986-10-23 | 1986-10-23 | Exhaust gas purifying apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP61252666A JPS63107731A (en) | 1986-10-23 | 1986-10-23 | Exhaust gas purifying apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS63107731A true JPS63107731A (en) | 1988-05-12 |
Family
ID=17240538
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP61252666A Pending JPS63107731A (en) | 1986-10-23 | 1986-10-23 | Exhaust gas purifying apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS63107731A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102225304A (en) * | 2011-04-22 | 2011-10-26 | 永兴县皓天环保科技发展有限责任公司 | Twin exhaust gas purifying tower |
CN104307336A (en) * | 2014-10-16 | 2015-01-28 | 太仓东能环保设备有限公司 | Multilayer interval step type desulphurization and dust removal reaction tank device |
WO2021139815A1 (en) * | 2020-01-09 | 2021-07-15 | 高境 | Exhaust gas purifying system and method |
-
1986
- 1986-10-23 JP JP61252666A patent/JPS63107731A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102225304A (en) * | 2011-04-22 | 2011-10-26 | 永兴县皓天环保科技发展有限责任公司 | Twin exhaust gas purifying tower |
CN104307336A (en) * | 2014-10-16 | 2015-01-28 | 太仓东能环保设备有限公司 | Multilayer interval step type desulphurization and dust removal reaction tank device |
CN104307336B (en) * | 2014-10-16 | 2016-12-14 | 江苏省旭日冶金环保设备有限公司 | A kind of Spaced staged desulfurization and dedusting retort device |
WO2021139815A1 (en) * | 2020-01-09 | 2021-07-15 | 高境 | Exhaust gas purifying system and method |
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