JPS62102811A - Treatment of exhaust gas - Google Patents
Treatment of exhaust gasInfo
- Publication number
- JPS62102811A JPS62102811A JP60243671A JP24367185A JPS62102811A JP S62102811 A JPS62102811 A JP S62102811A JP 60243671 A JP60243671 A JP 60243671A JP 24367185 A JP24367185 A JP 24367185A JP S62102811 A JPS62102811 A JP S62102811A
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- party
- substance
- grain
- dust collector
- 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
- 239000000126 substance Substances 0.000 claims abstract description 31
- 239000000428 dust Substances 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 18
- 239000010419 fine particle Substances 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 8
- 239000007789 gas Substances 0.000 abstract description 18
- 238000001816 cooling Methods 0.000 abstract description 9
- 238000009833 condensation Methods 0.000 abstract description 6
- 230000005494 condensation Effects 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 4
- 239000000843 powder Substances 0.000 abstract description 4
- 239000003517 fume Substances 0.000 abstract description 3
- 239000003463 adsorbent Substances 0.000 abstract description 2
- 238000007664 blowing Methods 0.000 abstract description 2
- 238000005189 flocculation Methods 0.000 abstract description 2
- 230000016615 flocculation Effects 0.000 abstract description 2
- 238000002347 injection Methods 0.000 abstract description 2
- 239000007924 injection Substances 0.000 abstract description 2
- 238000001035 drying Methods 0.000 abstract 1
- 230000003311 flocculating effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000000758 substrate Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 7
- 230000002776 aggregation Effects 0.000 description 4
- 239000010881 fly ash Substances 0.000 description 4
- 238000004220 aggregation Methods 0.000 description 3
- 239000002826 coolant Substances 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、都市ごみ焼却プラント、その他各種プラント
から排出される排ガス中の微粒子及びヒーームの除去方
法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for removing particulates and heat from exhaust gas discharged from municipal waste incineration plants and other various plants.
従来はこれらの微粒子、ヒーーム状の有害物質（水銀、
カドミウム、その他）を除去する方法としては、湿式方
法がとられ、ガスの温度を下げて比較的大きな粒径の水
滴に吸収させ、湿式集じん装置等により除去する方法が
とられている。Conventionally, these fine particles, heem-like harmful substances (mercury,
A wet method is used to remove cadmium, etc., in which the temperature of the gas is lowered, the gas is absorbed into relatively large water droplets, and the gas is removed using a wet dust collector or the like.
又乾式においては第３者物質の微粒子をこれらに衝突さ
せる事によシ、これらを凝集させ。In the dry method, fine particles of a third party substance are collided with these particles to cause them to coagulate.
粒径を大きくして排ガス後流の集じん装置にて除去する
方法がある。There is a method of increasing the particle size and removing it using a dust collector downstream of the exhaust gas.
湿式法については除去効率については問題ないが、多量
の水を使用し０本装置から排液が排出され、その排液が
多量の有害物質を含んでいるため、それを無害化する排
水処理設備が必要であり、さらには排出される排ガスは
ミストも混入しているので、排ガスをさらに再加熱する
必要がある。このため設備費。There is no problem with the removal efficiency of the wet method, but it uses a large amount of water and the effluent is discharged from the device, and the effluent contains a large amount of harmful substances, so wastewater treatment equipment is required to make it harmless. Furthermore, since the exhaust gas is also mixed with mist, it is necessary to further reheat the exhaust gas. For this reason, equipment costs.
維持管理費とも非常に高いものとなっている。Maintenance costs are also extremely high.
一方従来の乾式法においては、単に第３者物質微粒子に
よる衝突効果による凝集効果のみなので、除去効率は悪
い。On the other hand, in the conventional dry method, the removal efficiency is poor because the only effect is the aggregation effect due to the collision effect of fine particles of the third party substance.
本発明は、湿式法および乾式法のそれぞれがもつ上記問
題を解決した排ガス処理方法を提供することを目的とす
る。An object of the present invention is to provide an exhaust gas treatment method that solves the above-mentioned problems of both the wet method and the dry method.
従って本発明は１色々問題の多い湿式法をとらず、乾式
法における除去効率の悪さを。Therefore, the present invention eliminates the wet method, which has many problems, and eliminates the poor removal efficiency of the dry method.
第３者物質の微粒子を排ガス中に輸送用空気に吹込む前
の前処理として冷却処理を行い。Cooling treatment is performed as a pretreatment before blowing fine particles of third-party substances into the exhaust gas into the transportation air.
第３者物質の温度を極力下げて、微粒子、ヒーームの凝
集、凝縮効果を高める事により解決する。This problem can be solved by lowering the temperature of the third-party substance as much as possible to increase the coagulation and condensation effect of fine particles and heat.
この第３者物質としては、粉体として得られるものなら
ばどんなものでもよＶ３゜特に効果的と思７ノれるもの
け活性炭、除去しようとする物質を吸着する吸着剤、微
細水滴及び水滴。This third-party substance may be any substance that can be obtained as a powder, such as activated carbon, which is considered to be particularly effective, an adsorbent that adsorbs the substance to be removed, fine water droplets, and water droplets.
その他例えば１００μ以下の粒径のものが好ましい。In addition, particles having a particle size of, for example, 100 μm or less are preferred.
本発明方法におりで、常温の第３者物質と高温排ガス（
８０〜５００℃）が接触した際に。In the method of the present invention, a third-party substance at room temperature and high-temperature exhaust gas (
80-500℃).
排ガス中の水分が第３者物質の表面に凝縮する現象を生
じ、その水分が高温排ガス中で。A phenomenon occurs in which moisture in the exhaust gas condenses on the surface of third-party substances, and that moisture is present in the high-temperature exhaust gas.
微粒子１０μ以下とヒユームの凝集、凝縮現象を効果的
に促進させるので１本発明方法の如く、第３者物質を冷
却すれば、その凝縮水分量が増加して、その効果が顕著
になる。Since it effectively promotes the aggregation and condensation phenomenon of fine particles of 10 μm or less and fume, if the third party substance is cooled as in the method of the present invention, the amount of condensed water increases and the effect becomes remarkable.
さらに本発明の如く、第３者物質の温度及び輸送用空気
の温度をより低くすれば、輸送用空気中の水分も、第３
者物質の表面に凝縮し。Furthermore, as in the present invention, if the temperature of the third-party substance and the temperature of the transportation air are lowered, the moisture in the transportation air can also be reduced by the third-party substance.
condenses on the surface of matter.
上記の凝縮、凝集効果はさらに上昇する。The above-mentioned condensation and flocculation effects further increase.
次に本発明方法の一実施例を図面に基いて説明する。 Next, an embodiment of the method of the present invention will be explained based on the drawings.
第１図は本実施例を示すフローである。FIG. 1 is a flowchart showing this embodiment.
第３者物質Ａはサイロ１に貯留され、その後定量供給機
２によシ切り出され、プロワ３により焼却炉排ガスＢ中
に粉体噴出装置４を介して供給され、排ガス中の微粒子
及びヒユームと凝集・凝縮現象を生じさせる。そして大
きな粒子となったものは後流の集じん装置５によシ捕集
され、飛灰排出装置６により飛灰Ｅとして系外に排出さ
れる。第３者物質を冷却する方法としては、サイロ１下
部に冷却装置１１． プロワ３出口に冷却装置１２．
第３者物質の搬送ラインに冷却装置１３を取付ける方法
がある。Third-party substance A is stored in a silo 1, then cut out by a quantitative feeder 2, and is supplied by a blower 3 into incinerator exhaust gas B via a powder injection device 4, and is mixed with fine particles and fume in the exhaust gas. Causes agglomeration and condensation phenomena. The large particles are collected by a downstream dust collector 5 and discharged as fly ash E by a fly ash discharge device 6 to the outside of the system. As a method of cooling the third party substance, there is a cooling device 11. Cooling device 12 at blower 3 outlet.
There is a method of attaching the cooling device 13 to the transport line for third-party substances.
冷却装＃は上記の３箇所（１１，１２，１３）すべてに
設置してもよいし、いずれか任意の１箇所でもよい。Cooling device # may be installed at all three locations (11, 12, 13), or may be installed at any one location.
なお０図中Ｃは第３者物質の輸送用空気、Ｄは冷却媒体
を示す。In Figure 0, C indicates air for transporting third-party substances, and D indicates a cooling medium.
本発明によれば、第３者物質を核としての凝集、凝縮現
象が増加するので、より多くの微粒子、ヒーームが凝集
、凝縮され粒径が犬きくなり、後段の乾式集じん装置に
より捕集され、これら有害物質の除去効率が上昇する。According to the present invention, since the phenomenon of aggregation and condensation using third-party substances as a nucleus increases, more fine particles and heat are agglomerated and condensed, and the particle size becomes larger, which is collected by the dry dust collection device in the subsequent stage. This increases the removal efficiency of these harmful substances.
である。It is.
Ａ・・・第３者物質、Ｂ・・・排ガス、Ｃ・・・第３者
物質輸送用空気、Ｄ・・・冷却媒体、Ｅ・・・飛灰、１
・・・サイ０．２・・・定量給供機、３・・・ブロワ、
４・・・粉体噴出装置、５・・・集じん装置、６・・・
飛灰排出装置。A...Third party substance, B...Exhaust gas, C...Air for transporting third party substance, D...Cooling medium, E...Fly ash, 1
...Sai 0.2...Quantity feeder, 3...Blower,
4... Powder ejection device, 5... Dust collection device, 6...
Fly ash discharge device.
１１．１２．１３・・・冷却装置。11.12.13... Cooling device.
Claims (1)
除去する方法において、第三者物質としての微粒子を冷
却して上記排ガス中に輸送用空気と共に吹込み排ガス中
の有害物質を同第三者微粒子を中心に凝集もしくは凝縮
させ比較的大きな粒子として、乾式の集じん装置にて捕
集させ除去する事を特徴とする、排ガス処理方法。In a method for removing fine particles and fume-like harmful substances contained in exhaust gas, fine particles as third party substances are cooled and blown into the exhaust gas together with transportation air to remove harmful substances in the exhaust gas from the same third party fine particles. An exhaust gas treatment method characterized by agglomerating or condensing the particles and collecting and removing them as relatively large particles using a dry dust collector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60243671A JPS62102811A (en) | 1985-10-30 | 1985-10-30 | Treatment of exhaust gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60243671A JPS62102811A (en) | 1985-10-30 | 1985-10-30 | Treatment of exhaust gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62102811A true JPS62102811A (en) | 1987-05-13 |
Family
ID=17107255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60243671A Pending JPS62102811A (en) | 1985-10-30 | 1985-10-30 | Treatment of exhaust gas |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62102811A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106268159A (en) * | 2016-09-06 | 2017-01-04 | 上海应用技术大学 | A kind of exhaust gas processing device and processing method |
-
1985
- 1985-10-30 JP JP60243671A patent/JPS62102811A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106268159A (en) * | 2016-09-06 | 2017-01-04 | 上海应用技术大学 | A kind of exhaust gas processing device and processing method |
| CN106268159B (en) * | 2016-09-06 | 2018-08-14 | 上海应用技术大学 | A kind of exhaust gas processing device and processing method |
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