JPS62210035A - Method for desalting combustion exhaust gas - Google Patents
Method for desalting combustion exhaust gasInfo
- Publication number
- JPS62210035A JPS62210035A JP61051088A JP5108886A JPS62210035A JP S62210035 A JPS62210035 A JP S62210035A JP 61051088 A JP61051088 A JP 61051088A JP 5108886 A JP5108886 A JP 5108886A JP S62210035 A JPS62210035 A JP S62210035A
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- desalting
- nozzle
- particle
- speed
- 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
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims description 14
- 238000011033 desalting Methods 0.000 title abstract description 26
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 25
- 239000000843 powder Substances 0.000 claims abstract description 23
- 239000006185 dispersion Substances 0.000 claims description 17
- 238000010612 desalination reaction Methods 0.000 claims description 12
- 239000002245 particle Substances 0.000 abstract description 23
- 238000006243 chemical reaction Methods 0.000 abstract description 15
- 238000002347 injection Methods 0.000 abstract description 11
- 239000007924 injection Substances 0.000 abstract description 11
- 239000012717 electrostatic precipitator Substances 0.000 abstract description 7
- 238000011144 upstream manufacturing Methods 0.000 abstract description 6
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract description 4
- 239000010419 fine particle Substances 0.000 abstract description 4
- 238000009792 diffusion process Methods 0.000 abstract description 3
- 235000010216 calcium carbonate Nutrition 0.000 abstract description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract description 2
- 239000010813 municipal solid waste Substances 0.000 abstract description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 abstract 1
- 239000000920 calcium hydroxide Substances 0.000 abstract 1
- 235000011116 calcium hydroxide Nutrition 0.000 abstract 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 abstract 1
- 239000011882 ultra-fine particle Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 5
- 230000002776 aggregation Effects 0.000 description 4
- 239000011575 calcium Substances 0.000 description 4
- 238000004220 aggregation Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 101100327917 Caenorhabditis elegans chup-1 gene Proteins 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 239000011164 primary particle Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000011163 secondary particle Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- -1 that is Substances 0.000 description 1
- 238000004056 waste incineration 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、燃焼排ガスに粉末状脱塩剤を噴霧供給して、
燃焼排ガス中のＨＣ，９を除去する、燃焼排ガスの脱塩
方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention provides a method for spraying and supplying a powder desalination agent to combustion exhaust gas.
The present invention relates to a method for desalinating combustion exhaust gas, which removes HC,9 from the combustion exhaust gas.
従来の技術
燃焼炉から排出される排ガスの中のＩＩｃρを除去する
脱塩方法としては、
■ 煙道へ脱塩剤粉体を低速（１５〜６０ｍ／秒）で吹
込む簡易法。Conventional techniques Desalination methods for removing IIcρ from exhaust gas discharged from combustion furnaces include: (1) A simple method in which desalination agent powder is blown into the flue at a low speed (15 to 60 m/sec).
■ 上記■についてさらに、下流ｌ１ｌｌＩ煙道内へ混
合板等を設置し、積極的に排ガスを撹拌混合さぜ効率を
向上させる方法。■ Regarding (■) above, a method of installing a mixing plate etc. in the downstream l1lll flue to actively improve the efficiency of stirring and mixing the exhaust gas.
■ 電気集塵はの上流側もしくは内部に設置された反応
塔および集塵部に脱塩剤粉体を吹込む方法。■Electrostatic precipitator is a method in which desalting agent powder is injected into the reaction tower and dust collection section installed upstream or inside.
■ 上記■、■、■に超微粒子脱塩剤を使用し、反応効
率を向上させる方法。■ A method of improving reaction efficiency by using an ultrafine particle desalting agent in the above ■, ■, and ■.
などがある。and so on.
発明が解決しようとする問題点
燃焼排ガスの脱塩処理における、上記の方法では、殆ど
の場合、単一ノズルによる低速吹き込み方式であるため
、いずれも供給された脱塩剤粉体が凝集した状態となっ
ていると考えられ、除去率が低く、脱塩率を向上するた
めには薬品使用量を多くする必要がある、などの欠点が
あった。粉末状薬剤を用いる排ガス脱塩処理において、
その脱塩性能を向上させる手段としては、
（ｉ） 排ガス中のＩＩｃρ総量に対する添加薬剤量
の比率を増大させる。Problems to be Solved by the Invention Most of the above methods for desalinating combustion exhaust gas use a low-speed blowing method using a single nozzle, so the supplied desalting agent powder is in an agglomerated state. The removal rate was low, and in order to improve the desalting rate, it was necessary to use a large amount of chemicals. In exhaust gas desalination treatment using powdered chemicals,
As a means for improving the desalting performance, (i) increasing the ratio of the amount of added chemicals to the total amount of IIcρ in the exhaust gas;
（ｉｉ） Ｒ適温度域内で脱塩反応を行なわせ、かつ
この間の油密時間を増大させる。(ii) The desalting reaction is carried out within the R-appropriate temperature range, and the oil-tight time during this reaction is increased.
ｆ３ｉＤ 排ガスと脱塩剤粉体との拡散混合性を積極
的に増大させ、反応率を上げる。f3iD Actively increases the diffusion mixability of exhaust gas and desalting agent powder to increase the reaction rate.
６φ 脱塩剤粉体を超微粒子化し、反応表面積を増大さ
せるとともに、超微粒子化により反応活性を向上させて
、脱塩率の増大をはかる。6φ The desalting agent powder is made into ultra-fine particles to increase the reaction surface area, and the reaction activity is improved by making the ultra-fine particles, thereby increasing the desalination rate.
等の手段がある。この中でも、脱塩率増大のためには、
通常上記（１）項の手段が最も即効性がある。There are other means such as Among these, in order to increase the desalination rate,
Usually, the measures in item (1) above are the most immediately effective.
しかしこれはランニングコストの増大に直結し、好まし
くない。また、上記ＯｉＤ、Ｇψ項に３３いては、超微
粒子の分散性の問題がある。すなわち粉体粒子間には、
一般にファンデアワールス等の粒子間引力が鋤き、粒子
同士が凝縮しやすく、超微粒子になると殆どの場合、粒
子は１４１−では存在し得ず、中−粒子ずなわち１次粒
子は２次粒子と言われる粒子集合体を形成している。こ
の凝集の度合は、粉体粒子が微細になればなる稈大とな
り、例えばタルクの微粉末においては、その粉体粒子侵
と凝集度合との関係は第７図に示すごとく、粒子径が５
μｍ以下になる附近からその凝集度合は幾何級数的に増
大する。一般には１μｍ以下の粉体粒子を中−粒子分散
さゼることは極めて難しいと言われており、いわゆる超
微粒子粉体を中−粒子分散させるためには、かなりの分
散エネルギーが必要であることはいうまでもない。However, this directly leads to an increase in running costs, which is undesirable. Furthermore, regarding the above OiD and Gψ terms, there is a problem in the dispersibility of ultrafine particles. In other words, between the powder particles,
In general, Van der Waals and other interparticle attractions are created and particles tend to condense together, and in most cases when they become ultrafine particles, particles cannot exist at 141-, and medium-sized particles, that is, primary particles, are secondary particles. They form particle aggregates called particles. The degree of agglomeration increases as the powder particles become finer. For example, in the case of fine talc powder, the relationship between the powder particle invasion and the degree of aggregation is as shown in Figure 7.
The degree of aggregation increases exponentially from the point where it becomes less than μm. It is generally said that it is extremely difficult to disperse powder particles of 1 μm or less into medium-sized particles, and a considerable amount of dispersion energy is required to disperse so-called ultra-fine powders into medium-sized particles. Needless to say.
ここで、ｌＩ３微粒子粉体の単一粒子への分散に要する
エネルギーをε（Ｊ／ Ｗｔ−Ｓ）とすると、そのεと
粉体噴射のノズル孔径ｄｏ（ｆＲＩｎ）おＪ：び所要噴
射空気流Ｑｏ （ρ／１ｉｎ）、そのときの噴射速度
Ｖ（ｍ／５ｅｃ）には、次の関係があり、（Ｉ）式を満
足づるεを選定することにより、単一粉体粒子の発生が
可能である。Here, if the energy required to disperse lI3 fine powder into a single particle is ε (J/Wt-S), then ε, powder injection nozzle hole diameter do (fRIn), J: and required injection air flow Qo (ρ/1in) and the injection speed V (m/5ec) at that time have the following relationship, and by selecting ε that satisfies equation (I), it is possible to generate single powder particles. It is.
３２．３ε ≦１・・自・・（Ｉ）
ε＝ ２．７ｘ１０’ Ｑｏ ’ ／ｄａ ’−−−・
（Ｉｆ ）Ｖ＝Ｑａ ｘ１０３ ／１５πｄｏ ２−−
− （ＩＩ［）すなわち、（Ｉ）式を満足するごときエ
ネルギーεを与えるべく、ｄｏ 、Ｑｏを選定すれば、
凝集性の高い超微粒子粉体の場合でも、はぼ１ｌｊ−−
粒子になることが知られている。32.3ε ≦1...self...(I) ε= 2.7x10'Qo'/da'----
(If)V=Qax103/15πdo 2−-
- (II[) That is, if do and Qo are selected to give energy ε that satisfies equation (I), then
Even in the case of highly cohesive ultrafine powder, the
known to form particles.
本発明は、燃焼排ガスの脱塩処理において、上記（ｔｉ
）、 ＧｉＤ項に膿目し、かつ特に微粒子状脱塩剤の単
一粒子分散を実現して、脱塩効率を向上させ、上記のご
とき従来技術の問題点を解決しようとするものである。The present invention provides the above (ti
), which aims to solve the problems of the prior art as described above by improving the desalting efficiency by realizing single-particle dispersion of a particulate desalting agent and in particular by realizing a single particle dispersion of a particulate desalting agent.
問題点を解決するための手段
上記のごとき問題点を解決するために、本発明の燃焼排
ガスの脱塩方法は、燃焼排ガス中へ、温度１５０℃〜１
０００℃で微粒子粉末状脱塩剤を高速分散ノズルを用い
て高速気流により噴射することを特徴とするものである
。Means for Solving the Problems In order to solve the above-mentioned problems, the method for desalinating combustion exhaust gas of the present invention provides a method for desalinating combustion exhaust gas at a temperature of 150°C to 1°C.
The method is characterized in that a fine particle powder desalting agent is injected with a high-speed air stream using a high-speed dispersion nozzle at 000°C.
作用
本発明では、超微粒子粉体としたカルシウム系またはマ
グネシウム系化合物などの脱塩剤を、高速分散ノズルを
用いて高速気流により、温度１５０℃〜１０００℃の燃
焼（Ｉガス中へ噴射して、それによって分散エネルギー
を与え単一粒子状に分散して、極めて大きな反応表面積
を確保するとともに、反応最適雰囲気温度で反応させる
ことにより、反応を活性化して、非常に高いＩＩＣΩ除
去率が得られる。Function In the present invention, a desalting agent such as a calcium-based or magnesium-based compound in the form of ultrafine powder is combusted (injected into I gas) at a temperature of 150°C to 1000°C using a high-speed airflow using a high-speed dispersion nozzle. , thereby providing dispersion energy and dispersing it into single particles to ensure an extremely large reaction surface area, and by allowing the reaction to occur at the optimum reaction temperature, the reaction is activated and a very high IICΩ removal rate can be obtained. .
実施例
まず、本発明の実施に用いる装置について説明する。第
１図は、本発明を適用し得るようにしたごみ焼Ｗ炉の一
例を示すものである。焼ＸＩＪ炉本体１内でごみ（Ｄ）
が燃焼し、発生する排ガスは煙道２を経てガス冷ｆＪＪ
Ｊバ３で冷ＩＪ後、電気集Ｕ■４で集Ｉ／Ｊされ、適用
器５を経て煙突６から外部へ排出される。３８は冷却水
噴射ノズルである。焼却炉木杯１内の燃焼部１ａに高速
分散ノズル７Ａ。Embodiment First, an apparatus used to carry out the present invention will be described. FIG. 1 shows an example of a waste incineration furnace to which the present invention can be applied. Garbage inside the XIJ furnace body 1 (D)
is burned, and the generated exhaust gas passes through flue 2 to the gas cooling fJJ
After being subjected to cold IJ at the J bar 3, it is collected at the electric collector U4, passed through the applicator 5, and is discharged to the outside from the chimney 6. 38 is a cooling water injection nozzle. A high-speed dispersion nozzle 7A is installed in the combustion section 1a in the incinerator wooden cup 1.
７Ｂが配設され、又電気集塵器４の上流側′！ｊ！道２
内に高速分散ノズル７Ｃが配設されている。高速分散ノ
ズル７Ａ、７Ｂと７Ｃに、それぞれ脱塩剤粉体供給槽８
と９から吹込ブロワ１０により、それぞれの箇所の排ガ
ス温度（たとえば燃焼部１ａニア００℃〜１０００℃、
電気集塵器４上流側煙道：１５０℃〜４００℃）に適応
した脱塩剤［燃焼部のノズル７Ａ、７ＢにはＣａＣ（８
、電気集塵器上流側煙道のノズル７ＣにはＣａ（Ｏｆｔ
）２］が超微粒子状で供給され、噴出する。高速分散ノ
ズル７Ａ、７Ｂおよび７Ｃは、′；ＸＳ２〜７１図に例
示するごとき配置で取付けられている。たとえば第２図
では、４個のノズル７の先端が、煙道２内の排ガスの進
行方向に直角な横断面を仮りに４等分した、各区分のほ
ぼ中央に相当する箇所に位＠するごとく、それぞれ挿入
され、かつ各ノズルの先端には、噴流を水平方向へ円形
に哨射し得るよう複数のノズル孔が設けられている。第
３図では、煙道２等の設置箇所の大きさに応じて、排ガ
スの進行方向に直角な横断面のほぼ中央に１個のノズル
７が配置され、ノズルの先端には第２図の場合と同様の
多数のノズル孔が設けられている。第４図は、たとえば
広い断面積の煙道２あるいは燃焼部１ａ等において、対
向する側壁にそれぞれ複数個の単一孔ノズル７を、排ガ
スの進行方向に直角な方向に噴射し得るように配列した
例である。上記第２図〜第４図で例示した配置で高速分
散ノズル７を設置することにより、脱塩剤が排ガスの流
れに対し、直角方向に均等に噴射され、排ガスと十字流
となって、均一に両者が混合される。また上記のごとく
配設した脱塩剤の高速分散ノズル７において、ノズル孔
径ｄｏ（ｍｌ、噴射速度Ｖ （ｍ／ｓｅｃ ）および所
要噴射空気流Ｑｏ （［／ｌｉｎ ）を上記式（１）
〜（ｆ［［）を満足げる値に設定して噴射することが、
超微粒子状の脱塩剤を１ｌｉ−粒子状に分散し、反応表
面積を増大して、脱塩効率を向上させる上で帰めて好ま
しい。7B is arranged, and also on the upstream side of the electrostatic precipitator 4'! j! road 2
A high-speed dispersion nozzle 7C is disposed inside. High-speed dispersion nozzles 7A, 7B and 7C each have a desalting agent powder supply tank 8.
From 9 to 9, the exhaust gas temperature at each location (for example, 00°C to 1000°C near the combustion section 1a,
Electrostatic precipitator 4 upstream flue: 150°C to 400°C) desalination agent [CaC (8
, the nozzle 7C of the flue on the upstream side of the electrostatic precipitator
)2] is supplied in the form of ultrafine particles and ejected. The high-speed dispersion nozzles 7A, 7B, and 7C are installed in the arrangement shown in FIGS. For example, in Fig. 2, the tips of the four nozzles 7 are located approximately at the center of each section where the cross section perpendicular to the direction of travel of the exhaust gas in the flue 2 is divided into four equal parts. Each nozzle is inserted as shown in FIG. In Fig. 3, one nozzle 7 is arranged approximately in the center of the cross section perpendicular to the direction of movement of the exhaust gas, depending on the size of the installation location of the flue 2, etc., and the tip of the nozzle is as shown in Fig. 2. A large number of nozzle holes are provided as in the case. FIG. 4 shows a plurality of single-hole nozzles 7 arranged on opposing side walls of a flue 2 or a combustion section 1a having a large cross-sectional area, for example, so as to inject exhaust gas in a direction perpendicular to the traveling direction of the exhaust gas. This is an example. By installing the high-speed dispersion nozzle 7 in the arrangement illustrated in Figs. 2 to 4 above, the desalting agent is evenly injected in a direction perpendicular to the flow of exhaust gas, forming a cross flow with the exhaust gas, and uniformly Both are mixed. In addition, in the high-speed dispersion nozzle 7 for the desalting agent arranged as described above, the nozzle hole diameter do (ml), the injection speed V (m/sec), and the required injection air flow Qo ([/lin) are expressed by the above formula (1).
~(Setting f[[) to a satisfactory value and injecting
It is preferable to disperse the desalting agent in the form of ultrafine particles in the form of 1li-particles to increase the reaction surface area and improve the desalting efficiency.
次に、上記第１図に示された焼却炉における脱塩処理の
実施例を示す。Next, an example of desalination treatment in the incinerator shown in FIG. 1 will be described.
実施例１：脱塩剤としてＣａ（Ｏｌｌ）２超微粒子粉末
（平均粒径１．７μｍ）を用い、第３図のごとく配置し
た孔径６闇の高速分散ノズル７Ｃにより、噴射流速１０
０〜１８０ＴｒＬ／ＳｅＣで、排ガス温度が２００℃〜
２６０℃の電気集塵器４の上流側ｅＪ？！において、Ｃ
ａ（０１１）２／ ２１１ｃｊ２当量１ヒを１．２．３
Ｊｌｊよび４と変えて噴射して、ｆｍ塩処理を行なった
。Example 1: Ca(Oll)2 ultrafine powder (average particle size 1.7 μm) was used as a desalting agent, and a jet flow rate of 10
0-180TrL/SeC, exhaust gas temperature 200℃~
Upstream eJ of electrostatic precipitator 4 at 260°C? ! In, C
a(011)2/211cj2 equivalent 1hi 1.2.3
The fm salt treatment was carried out by injecting with Jlj and 4 instead.
比較例１として、単一噴射ノズルを用い、噴射流速２０
〜４０ｍ ／ ｓａｃとするほかは、前記具体例と全く
同様の条件で脱塩処理を行なった。As Comparative Example 1, a single injection nozzle was used and the injection flow rate was 20
Desalination treatment was carried out under the same conditions as in the above specific example except that the speed was set at ~40 m/sac.
上記実施例Ｉ Ｊ３よび比較例１について得られたＣａ
（叶）２／２ｔｌＣρ当量比とＩＩｃΩ除去率との関係
を第５図に示ヅ。Ca obtained for the above Example I J3 and Comparative Example 1
(Ko) The relationship between the 2/2tlCρ equivalence ratio and the IIcΩ removal rate is shown in Figure 5.
実施例２：１４図のごとく配置した孔径６顛の高速分散
ノズル（Ａ）群および（８）群により、噴射流速１５０
〜２００ｍ／ｓｅｃで、脱塩剤としてＣａＣＯ３超微粒
子粉末（平均粒径１．７μｍ）を用い、排ガス温度が７
００℃〜１０００℃の燃焼部１ａにＪ３いて、ＣａＣ０
＋ ／ ２１１ｃｊ２当吊比を１．２．３６よび４と変
えて噴射して、脱塩処理を行なった。Example 2: A jet flow rate of 150
~200 m/sec, using CaCO3 ultrafine powder (average particle size 1.7 μm) as a desalting agent, and exhaust gas temperature of 7.
J3 is in the combustion section 1a at 00°C to 1000°C, and CaC0
+/211cj2 The desalination treatment was carried out by injecting with different suspension ratios of 1.2.36 and 4.
比較例２として、単一噴射ノズルを用い噴射流速２０〜
４０ｍ ／ ＳｅＣとするほかは、前記具体例と全く同
様の条件で脱塩処理を行なった。As Comparative Example 2, a single injection nozzle was used and the injection flow rate was 20~
Desalting treatment was carried out under exactly the same conditions as in the above specific example except that the density was 40 m/SeC.
上記実施例２および比較例２について青られたＣａＣｏ
ｘ ／ ２ ＨＣ！２当量比をＩＣΩ除去率との関係を
第６図に示す。CaCo blued for Example 2 and Comparative Example 2 above
x/2 HC! The relationship between the 2-equivalent ratio and the ICΩ removal rate is shown in FIG.
第５図および第６図から明らかなごとく、比較例ではＣ
ａ（Ｏｌｌ）２／ ２１１ＣＵ 、 ＣａＣｏｘ ／
２ ＩＩＣＲの当量比が３でＩＩＣＡＩＣ率６３７０程
度であるのに対して、本発明の実施例では７５〜９０％
と極めてすぐれていた。As is clear from FIGS. 5 and 6, in the comparative example, C
a(Oll)2/ 211CU, CaCox/
2 The equivalent ratio of IICR is 3 and the IICAIC rate is about 6370, whereas in the examples of the present invention it is 75 to 90%.
It was extremely excellent.
発明の効果
本発明により、燃焼排ガス中のＩＩｃρを、少い脱塩剤
使用量で、極めて効率よく除去することができる。Effects of the Invention According to the present invention, IIcρ in the combustion exhaust gas can be removed extremely efficiently with a small amount of desalination agent used.
第１図（よ本発明の適用しつる燃焼装置の一例を示す慨
略楢成図、第２図は本発明で用いる高速分散ノズルの配
置の一例を示し、（イ）は縦断面図、（ロ）は横断面図
、第３図は同じく高速分散ノズルの配置の他の例を示し
、（イ）は縦断面図、（ロ）は横断面図、第４図は同じ
く高速分散ノズルの配置を示し、（イ）は横断面図、（
ロ）は側面図、第５図は実施例１におけるＣａ（０１１
）２／２１１ＣＱ当吊比とＩＩＣρＩＣΩ除去率係を示
すグラフ、第６図は実施例２におけるＣａＣ０：＋ ／
２１１ｃＲの当量比とＩＩｃΩ除去率との関係を示す
グラフ、第７図は微粒子の粒径と凝集度との関係を示ず
グラフである。
１・・・焼ｎ１炉木休、２・・・煙道、３・・・ガス冷
却塔、４・・・電気集塵器、７．７Ａ、７８．７Ｇ・・
・高速分散ノズル、８，９・・・脱塩剤粉体供給槽、１
０・・・吹込ブロワ
代理人 森 本 義 弘
第３図
（イ） 、？ （０）第４図
７ ｌ Ｚ
Ｎ
徘FIG. 1 (a) is a schematic diagram showing an example of a vine combustion apparatus to which the present invention is applied; FIG. 2 is an example of the arrangement of high-speed dispersion nozzles used in the present invention; B) is a cross-sectional view, FIG. 3 is another example of the arrangement of the high-speed dispersion nozzle, (A) is a longitudinal cross-section, (B) is a cross-sectional view, and FIG. 4 is the same arrangement of the high-speed dispersion nozzle. , (a) is a cross-sectional view, (
B) is a side view, and FIG. 5 is a side view of Ca(011
) 2/211CQ balance ratio and graph showing IICρICΩ removal rate ratio, Figure 6 shows CaC0:+/ in Example 2.
FIG. 7 is a graph showing the relationship between the equivalent ratio of 211cR and the IIcΩ removal rate, and FIG. 7 is a graph showing the relationship between the particle size of fine particles and the degree of aggregation. 1... Baking n1 furnace rest, 2... Flue, 3... Gas cooling tower, 4... Electrostatic precipitator, 7.7A, 78.7G...
・High-speed dispersion nozzle, 8, 9... Desalting agent powder supply tank, 1
0...Blowing blower agent Yoshihiro Morimoto Figure 3 (a) ,? (0) Figure 4 7 l Z N Wandering
Claims (1)
子粉末状脱塩剤を高速分散ノズルを用いて高速気流によ
り噴射することを特徴とする燃焼排ガスの脱塩方法。1. A method for desalinating combustion exhaust gas, which comprises injecting a fine powder desalination agent into the combustion exhaust gas at a temperature of 150°C to 1000°C using a high-speed dispersion nozzle with a high-speed air stream.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61051088A JPS62210035A (en) | 1986-03-07 | 1986-03-07 | Method for desalting combustion exhaust gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61051088A JPS62210035A (en) | 1986-03-07 | 1986-03-07 | Method for desalting combustion exhaust gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62210035A true JPS62210035A (en) | 1987-09-16 |
Family
ID=12877061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61051088A Pending JPS62210035A (en) | 1986-03-07 | 1986-03-07 | Method for desalting combustion exhaust gas |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62210035A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021535993A (en) * | 2018-09-14 | 2021-12-23 | ミンプラス ベスローテン フェンノトシャップ | How to operate an incinerator equipped with a device that captures ash mixed in flue gas |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5581726A (en) * | 1978-12-18 | 1980-06-20 | Mitsubishi Heavy Ind Ltd | Removing apparatus for harmful gas |
| JPS6025531A (en) * | 1983-07-21 | 1985-02-08 | Hitachi Zosen Corp | Dry purification of exhaust gas |
| JPS60216832A (en) * | 1984-04-10 | 1985-10-30 | Hitachi Zosen Corp | Purification of waste gas by dry lime process |
| JPS6135827A (en) * | 1984-07-27 | 1986-02-20 | Hitachi Zosen Corp | Purification of exhaust gas by dry lime method |
-
1986
- 1986-03-07 JP JP61051088A patent/JPS62210035A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5581726A (en) * | 1978-12-18 | 1980-06-20 | Mitsubishi Heavy Ind Ltd | Removing apparatus for harmful gas |
| JPS6025531A (en) * | 1983-07-21 | 1985-02-08 | Hitachi Zosen Corp | Dry purification of exhaust gas |
| JPS60216832A (en) * | 1984-04-10 | 1985-10-30 | Hitachi Zosen Corp | Purification of waste gas by dry lime process |
| JPS6135827A (en) * | 1984-07-27 | 1986-02-20 | Hitachi Zosen Corp | Purification of exhaust gas by dry lime method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021535993A (en) * | 2018-09-14 | 2021-12-23 | ミンプラス ベスローテン フェンノトシャップ | How to operate an incinerator equipped with a device that captures ash mixed in flue gas |
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