JPS6115726B2 - - Google Patents
Info
- Publication number
- JPS6115726B2 JPS6115726B2 JP57192075A JP19207582A JPS6115726B2 JP S6115726 B2 JPS6115726 B2 JP S6115726B2 JP 57192075 A JP57192075 A JP 57192075A JP 19207582 A JP19207582 A JP 19207582A JP S6115726 B2 JPS6115726 B2 JP S6115726B2
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- hydrogen chloride
- reaction tower
- hollow body
- removal agent
- 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.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/08—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles
- B01J8/14—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles moving in free vortex flow apparatus
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Gas Separation By Absorption (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
- Treating Waste Gases (AREA)
Description
【発明の詳細な説明】
この発明はごみ焼却炉等の排ガス中に含有され
る塩化水素を乾式法、半乾式法で除去する設備に
組込んで使用する反応塔に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a reaction tower that is incorporated into equipment for removing hydrogen chloride contained in exhaust gas from a waste incinerator or the like by a dry or semi-dry method.
ごみ焼却炉の排ガス中に含有される塩化水素の
除去設備として、排ガス中に消石灰等の除去用薬
剤を吹込む乾式法によるものが知られており、そ
のうち最も一般的なものが煙道（ダクト内）を流
れる排ガスの中に消石灰粉末等の除去用薬剤を直
接吹込む形式のものであり、第１図に示すように
簡単な設備構造である。これは集塵機１の入口前
段の排ガスダクト２に除去用薬剤の吹込ノズル３
を取付け、薬剤サイロ４から供給される塩化水素
除去用の薬剤例えば消石灰粉末をブロワ５で吸入
された空気と混合して前記ノズル３の位置まで搬
送し、前記ノズル３から排ガスＧ中に噴射させる
ものである。なお第１図において符号６はごみ焼
却炉、７は排ガス冷却装置、８は誘引フアン、９
は煙突を示す。 As equipment for removing hydrogen chloride contained in the exhaust gas of waste incinerators, there is a known dry method in which a removal agent such as slaked lime is injected into the exhaust gas. This system injects a removal agent such as slaked lime powder directly into the exhaust gas flowing through the exhaust gas, and has a simple equipment structure as shown in Figure 1. This is a nozzle 3 for blowing removal chemicals into the exhaust gas duct 2 before the entrance of the dust collector 1.
A hydrogen chloride removal agent, such as slaked lime powder, supplied from the chemical silo 4 is mixed with the air sucked in by the blower 5, conveyed to the position of the nozzle 3, and injected from the nozzle 3 into the exhaust gas G. It is something. In Fig. 1, numeral 6 is a garbage incinerator, 7 is an exhaust gas cooling device, 8 is an induction fan, and 9 is a waste incinerator.
indicates a chimney.
ところで、前記のような構造の塩化水素除去設
備は排ガス中に含有される塩化水素を、排ガスダ
クト２の流れの中で消石灰等の吹込み薬剤と化学
反応させて集塵機１により、他の焼却ダストと一
緒に集塵除去するものであるが、この乾式の塩化
水素除去設備は塩化水素の除去率が第２図のグラ
フ線ａに示すように低いものであり、大きな除去
率を得られる設備の改善が望まれていた。 By the way, the hydrogen chloride removal equipment having the above-mentioned structure chemically reacts hydrogen chloride contained in the exhaust gas with a blowing agent such as slaked lime in the flow of the exhaust gas duct 2, and removes it from other incineration dust by the dust collector 1. However, this dry type hydrogen chloride removal equipment has a low hydrogen chloride removal rate as shown in graph line a in Figure 2, and is not suitable for equipment that can achieve a high removal rate. Improvement was desired.
この発明は上記のような事情に鑑みなされたも
ので、その目的は排ガス中の塩化水素と、前述し
た除去用薬剤とを良好に混合し効率よく反応させ
て塩化水素の除去率を高めるようにした、新規な
構造の反応塔を提供することにあり、内壁に螺旋
状の排ガス案内板を設けた中空体と、この中空体
の上部に設けられた塩化水素除去用薬剤の吹込み
部を有する排ガス入口と、中空体の下部から薬剤
混合の排ガスを集塵機側へ導出させる排ガス出口
とを備えた反応塔構造を要旨とする。 This invention was made in view of the above-mentioned circumstances, and its purpose is to improve the removal rate of hydrogen chloride by mixing hydrogen chloride in exhaust gas and the above-mentioned removal agent and causing an efficient reaction. The purpose of the present invention is to provide a reaction column with a new structure, which has a hollow body with a spiral exhaust gas guide plate on the inner wall and an injection part for a hydrogen chloride removal agent provided in the upper part of the hollow body. The gist is a reaction tower structure equipped with an exhaust gas inlet and an exhaust gas outlet that leads out the chemical-mixed exhaust gas from the lower part of the hollow body to the dust collector side.
以下、この発明の一実施例を第３図，第４図の
図面に従い説明すると、図中１０は上部が円筒形
状をなし下部が逆円錐形状をなした反応塔本体を
構成する中空体であり、この中空体の内壁には螺
旋状の排ガス案内板１１が設けられている。なお
この排ガス案内板１１は反応塔内の保守点検等に
用いられる螺旋階段としても兼用できるように、
多数の階段踏板１１ａを図の如く螺旋配置して構
成される。１２は前記中空体１０の上端外周部に
設けた排ガス入口で、塩化水素除去用の薬剤（乾
式の場合には消石灰粉末等のアルカリ性薬剤）が
ノズル部１３から吹込まれる薬剤吹込み部として
ベンチユリー部１４を備えている。なお、前記排
ガス入口１２はベンチユリー部１４を有しないも
のであつてもよく、この場合は前記ノズル部１３
の排ガス入口１２に対する接続部分が塩化水素除
去用薬剤の吹込み部とされる。１５は前記中空体
１０の下部に設けた排ガス出口で、前記薬剤が混
合された排ガスＧを第１図に示す集塵機１側に導
出させる。 Hereinafter, one embodiment of the present invention will be described with reference to the drawings in FIGS. 3 and 4. In the figures, 10 is a hollow body constituting the reaction column main body, the upper part of which has a cylindrical shape and the lower part an inverted conical shape. A spiral exhaust gas guide plate 11 is provided on the inner wall of this hollow body. Note that this exhaust gas guide plate 11 is designed so that it can also be used as a spiral staircase used for maintenance and inspection inside the reaction tower.
It is constructed by arranging a large number of stair treads 11a in a spiral manner as shown in the figure. Reference numeral 12 denotes an exhaust gas inlet provided on the outer periphery of the upper end of the hollow body 10, and a ventilator is used as a chemical injection part into which a chemical for hydrogen chloride removal (an alkaline chemical such as slaked lime powder in the case of a dry type) is blown from a nozzle part 13. 14. Note that the exhaust gas inlet 12 may not have the ventilate part 14; in this case, the nozzle part 13
The connection part to the exhaust gas inlet 12 is used as the injection part for the hydrogen chloride removal agent. Reference numeral 15 denotes an exhaust gas outlet provided at the lower part of the hollow body 10, through which the exhaust gas G mixed with the drug is led out to the dust collector 1 side shown in FIG.
而して、上記構造の反応塔は第１図に示すよう
な塩化水素除去設備に組込まれて使用される（第
１図の装置例では集塵機１の入口前段部分に組込
まれて使用される）もので、塩化水素を含有する
排ガスＧは反応塔上部の排ガス入口１２から入
り、その直後にベンチユリー部１４を通過する
が、そこで消石灰等の塩化水素除去用薬剤が噴射
され、これを同伴した薬剤混合ガスとして早い流
速で中空体１０内に流入する。そしてこの流入ガ
スは排ガス案内板１１に沿つて渦巻状に旋回しな
がら中空体１０内を下降し、慣性力、遠心力、求
心力など様々な力を受けて、塩化水素除去用薬剤
が排ガス中に良好に混合され効率よく化学反応す
る。反応を終了した薬剤混合の排ガスは排ガス出
口１５から排出され、その下流側に設置した第１
図に示す如き集塵機１内に導入されて、該集塵機
で気固分離され、塩化水素が除去された清浄な排
ガスとなつて煙突９から大気中に放出される。 Therefore, the reaction tower having the above structure is used by being incorporated into a hydrogen chloride removal equipment as shown in Fig. 1 (in the example of the apparatus shown in Fig. 1, it is used by being integrated into the part before the entrance of the dust collector 1). The exhaust gas G containing hydrogen chloride enters from the exhaust gas inlet 12 at the top of the reaction tower and immediately passes through the ventilate section 14, where a hydrogen chloride removal agent such as slaked lime is injected, and the accompanying agent is The mixed gas flows into the hollow body 10 at a high flow rate. This inflowing gas descends inside the hollow body 10 while spirally turning along the exhaust gas guide plate 11, and is subjected to various forces such as inertial force, centrifugal force, and centripetal force, so that the hydrogen chloride removal agent is absorbed into the exhaust gas. Mixes well and chemically reacts efficiently. The chemical-mixed exhaust gas that has completed the reaction is discharged from the exhaust gas outlet 15, and the first
The exhaust gas is introduced into a dust collector 1 as shown in the figure, separated into gas and solid by the dust collector, and released into the atmosphere from a chimney 9 as clean exhaust gas from which hydrogen chloride has been removed.
この発明の反応塔は前記のような構造のもので
あり、この反応塔を用いて塩化水素除去率を実験
により調べたところ、第２図のグラフカーブ線ｂ
のような結果が出た。この場合の実験条件を平均
値で示すと以下の通りである。 The reaction tower of the present invention has the above-mentioned structure, and when the hydrogen chloride removal rate was experimentally investigated using this reaction tower, the graph curve line b in Figure 2 was found.
The result was as follows. The experimental conditions in this case are shown below as average values.
反応塔入口排ガス量、1560Nm3／ｈ、
反応塔入口排ガス温度、233℃
排ガス中の塩化水素濃度、766ppm
反応塔出口排ガス量、1570Nm3／ｈ
反応塔出口排ガス温度、231℃
塩化水素除去用薬剤、工業用の消石灰粉末
反応塔の大きさ、 2300mm直径×7000mm高さ
なお、前記実験に際して、反応塔内に螺旋状の
排ガス案内板１１がない一般的な反応塔を用い、
同一条牛で実験を行つた。この結果は第２図のグ
ラフカーブ線ｃに示すような塩化水素除去率とな
り、排ガス案内板１１の有無によつて塩化水素の
除去率に大きな差が生じたことが明らかとなつて
いる。 Reaction tower inlet exhaust gas amount, 1560Nm 3 /h, reaction tower inlet exhaust gas temperature, 233℃ Hydrogen chloride concentration in exhaust gas, 766ppm Reaction tower outlet exhaust gas amount, 1570Nm 3 /h Reaction tower outlet exhaust gas temperature, 231℃ Hydrogen chloride removal agent , industrial slaked lime powder Size of reaction tower: 2300 mm diameter x 7000 mm height In addition, for the above experiment, a general reaction tower without a spiral exhaust gas guide plate 11 inside the reaction tower was used,
Experiments were conducted on the same row of cows. The result was a hydrogen chloride removal rate as shown by the graph curve line c in FIG. 2, and it is clear that there was a large difference in the hydrogen chloride removal rate depending on the presence or absence of the exhaust gas guide plate 11.
なお前記実施例は乾式法による塩化水素除去方
法の反応塔について述べたが、本出願人が先に出
願している半乾式法の反応塔に対しても効果的に
適用することができる。 Although the above-mentioned embodiments have been described with respect to a reaction column for a hydrogen chloride removal method using a dry method, the present invention can also be effectively applied to a reaction column for a semi-dry method previously filed by the present applicant.
この発明の反応塔は以上説明したような構造の
ものであるから、排ガス中の塩化水素と、薬剤吹
込み部から排ガス中に吹込まれる塩化水素除去用
の薬剤とを反応塔内で旋回下降させて良好に混合
し効率よく反応させることができ、塩化水素の除
去率を従来よりも高めることができる効果があ
る。 Since the reaction tower of the present invention has the structure described above, hydrogen chloride in the exhaust gas and the hydrogen chloride removal agent blown into the exhaust gas from the chemical injection part are swirled and descended within the reaction tower. This has the effect of making it possible to mix well and react efficiently, and to increase the removal rate of hydrogen chloride compared to the conventional method.
第１図はごみ焼却炉から発生する排ガス中の塩
化水素を除去する設備を示した従来説明図、第２
図は排ガス中の塩化水素除去率について、従来例
と、本発明の反応塔を用いた場合と、反応塔内に
螺旋状の排ガス案内板がない一般的な反応塔を用
いた場合の３つの例で比較した説明図、第３図は
この発明の反応塔の一実施例を示す概略構造図、
第４図は第３図の−線に沿う横断面図であ
る。
１……集塵機、２……排ガスダクト、３……塩
化水素除去用薬剤の吹込ノズル、４……薬剤サイ
ロ、５……空気吸入用のブロワ、Ｇ……排ガス、
６……ごみ焼却炉、７……排ガス冷却装置、８…
…誘引フアン、９……煙突、１０……反応塔本体
を構成する中空体、１１……排ガス案内板、１１
ａ……階段踏板、１２……排ガス入口、１３……
塩化水素除去用薬剤の吹込ノズル、１４……ベン
チユリー部、１５……排ガス出口。
Figure 1 is a conventional explanatory diagram showing equipment for removing hydrogen chloride from exhaust gas generated from a garbage incinerator;
The figure shows the hydrogen chloride removal rate from exhaust gas in three cases: a conventional example, a case using the reaction tower of the present invention, and a case using a general reaction tower without a spiral exhaust gas guide plate inside the reaction tower. An explanatory diagram for comparison with examples, FIG. 3 is a schematic structural diagram showing one embodiment of the reaction tower of this invention,
FIG. 4 is a cross-sectional view taken along the - line in FIG. 3. 1...Dust collector, 2...Exhaust gas duct, 3...Blowing nozzle for hydrogen chloride removal agent, 4...Medical silo, 5...Blower for air intake, G...Exhaust gas,
6... Garbage incinerator, 7... Exhaust gas cooling device, 8...
... Induction fan, 9 ... Chimney, 10 ... Hollow body constituting the reaction tower main body, 11 ... Exhaust gas guide plate, 11
a... Stair tread, 12... Exhaust gas inlet, 13...
Blowing nozzle for hydrogen chloride removal agent, 14... ventilate section, 15... exhaust gas outlet.
Claims (1)
の吹込みによつて除去する設備に用いられる反応
塔であつて、内壁に螺旋状の排ガス案内板を設け
た中空体と、この中空体上部に設けられた塩化水
素除去用薬剤の吹込み部を有する排ガス入口と、
中空体の下部から薬剤混合の排ガスを集塵機側に
導出させる排ガス出口とを備えてなる反応塔。 ２ 前記案内板が螺旋階段として兼用できる構造
になつていることを特徴とする特許請求の範囲第
１項に記載の反応塔。 ３ 塩化水素除去用薬剤の吹込み部が排ガス入口
のベンチユリー部で形成されていることを特徴と
する特許請求の範囲第１項に記載の反応塔。[Scope of Claims] 1. A reaction tower used in equipment for removing hydrogen chloride contained in exhaust gas by blowing in a removal agent, which is a hollow body provided with a spiral exhaust gas guide plate on the inner wall. and an exhaust gas inlet having a blowing part for a hydrogen chloride removal agent provided in the upper part of the hollow body;
A reaction tower comprising an exhaust gas outlet that leads exhaust gas containing a chemical mixture from the lower part of the hollow body to the dust collector side. 2. The reaction tower according to claim 1, wherein the guide plate has a structure that can also be used as a spiral staircase. 3. The reaction tower according to claim 1, wherein the blowing part for the hydrogen chloride removal agent is formed in a ventilate part at the exhaust gas inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57192075A JPS5982929A (en) | 1982-11-01 | 1982-11-01 | reaction tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57192075A JPS5982929A (en) | 1982-11-01 | 1982-11-01 | reaction tower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5982929A JPS5982929A (en) | 1984-05-14 |
| JPS6115726B2 true JPS6115726B2 (en) | 1986-04-25 |
Family
ID=16285214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57192075A Granted JPS5982929A (en) | 1982-11-01 | 1982-11-01 | reaction tower |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5982929A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105688759B (en) * | 2016-03-14 | 2019-01-29 | 万华化学集团股份有限公司 | A kind of centrifugal inner swirl multiphase jet reactor and its method for preparing tertiary carbonic acid |
| CN110813005B (en) * | 2019-11-29 | 2021-06-25 | 湖南工艺美术职业学院 | Multistage filtration recovery processing equipment is prevented blockking up by dust for industrial ceramic material production |
-
1982
- 1982-11-01 JP JP57192075A patent/JPS5982929A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5982929A (en) | 1984-05-14 |
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