JPH08131769A - Method and apparatus for treating exhaust gas - Google Patents
Method and apparatus for treating exhaust gasInfo
- Publication number
- JPH08131769A JPH08131769A JP27330594A JP27330594A JPH08131769A JP H08131769 A JPH08131769 A JP H08131769A JP 27330594 A JP27330594 A JP 27330594A JP 27330594 A JP27330594 A JP 27330594A JP H08131769 A JPH08131769 A JP H08131769A
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- particles
- heavy metals
- temperature
- tar
- 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.)
- Withdrawn
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Manufacture And Refinement Of Metals (AREA)
- Treating Waste Gases (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、排ガス中に含まれる重
金属および重金属化合物の蒸気、アルカリミスト、ター
ル等を排ガス中より除去する方法およびその装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for removing vapors of heavy metals and heavy metal compounds contained in exhaust gas, alkali mist, tar and the like from exhaust gas.
【０００２】[0002]
【従来の技術】排ガス中から重金属および重金属化合物
の蒸気、アルカリミスト、タール等を除去する方法とし
て、従来は主として湿式法が採用されており、その代表
的なものが水洗方式である。2. Description of the Related Art As a method for removing vapors of heavy metals and heavy metal compounds, alkali mist, tar and the like from exhaust gas, a wet method has been mainly used conventionally, and a typical method is a water washing method.
【０００３】また乾式方法も種々提案されており、例え
ば特開昭６２−１０２８１１号公報には、都市ゴミ焼却
プラント、その他各種プラントから排出される排ガス中
に含まれる微粒子およびヒューム状の有害物質を除去す
る方法において、例えばアルミナ粉末のような微粒子を
冷却して排ガス中に輸送用空気と共に吹き込み、排ガス
中の有害物質を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、乾式の集塵装置にて捕集させて
除去することを特徴とする、排ガス処理方法が開示され
ている。Various dry methods have also been proposed. For example, Japanese Patent Application Laid-Open No. 62-102811 discloses fine particles and fume-like harmful substances contained in exhaust gas discharged from municipal waste incineration plants and other plants. In the removal method, for example, fine particles such as alumina powder are cooled and blown into the exhaust gas together with transportation air, and harmful substances in the exhaust gas are aggregated or condensed centering on the fine particles to form relatively large particles, which is a dry dust collector. Discloses a method for treating exhaust gas, which is characterized in that the exhaust gas is collected and removed.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら上記の従
来技術には以下の様な問題点があった。However, the above-mentioned prior art has the following problems.
【０００５】湿式法では、当然排ガス温度が低下する。
また特開昭６２−１０２８１１号公報に示される技術
は、乾式法であっても、微粒子または微粒子輸送用空気
を冷却し、これを排ガスに吹き込むため、排ガス温度が
著しく低下する。これは、有害ガス成分の除去効率向上
の面からは効果的であるが、顕熱回収を条件としたガス
浄化の場合には適切でない。In the wet method, the exhaust gas temperature is naturally lowered.
Further, the technique disclosed in Japanese Patent Laid-Open No. 62-102811 cools fine particles or air for transporting fine particles and blows this into the exhaust gas even if it is a dry method, so that the exhaust gas temperature is significantly lowered. This is effective from the viewpoint of improving the efficiency of removing harmful gas components, but is not appropriate in the case of gas purification under the condition of sensible heat recovery.
【０００６】本発明は、上記の問題点の解決を図ったも
のであり、排ガス中に含まれる重金属および重金属化合
物の蒸気、アルカリミスト、タールを除去することがで
き、しかも排ガスの保有する顕熱を損なうことのない方
法を提供することを目的とする。The present invention has been made to solve the above-mentioned problems and is capable of removing vapors of heavy metals and heavy metal compounds contained in exhaust gas, alkali mist, tar, and sensible heat possessed by exhaust gas. The aim is to provide a method that does not compromise.
【０００７】[0007]
【課題を解決するための手段】上記課題は以下の手段に
より解決される。 排ガス中に含まれる重金属および重金属化合物の蒸
気、アルカリミスト、タールを排ガス中より除去する排
ガスの処理方法において、前記排ガス温度以下に冷却し
た金属粒子をその表面温度が５０〜３００℃の範囲にな
るように排ガスと接触させ、金属粒子表面に前記物質を
凝縮させて排ガス中より除去することを特徴とする排ガ
スの処理方法。 排ガス中に含まれる重金属および重金属化合物の蒸
気、アルカリミスト、タールを排ガス中より除去する排
ガスの処理装置において、排ガス流路中に粒子径が０．
５〜１０ｍｍの範囲の金属粒子を自由落下させる手段を
有することを特徴とする排ガスの処理装置。The above-mentioned problems can be solved by the following means. In a method of treating an exhaust gas for removing vapors of heavy metals and heavy metal compounds contained in the exhaust gas, alkali mist, and tar from the exhaust gas, the metal particles cooled to the exhaust gas temperature or lower have a surface temperature in the range of 50 to 300 ° C. A method for treating exhaust gas, which comprises contacting the exhaust gas with the exhaust gas, condensing the substance on the surface of the metal particles, and removing the substance from the exhaust gas. In an exhaust gas treating apparatus for removing vapors of heavy metals and heavy metal compounds, alkali mist, and tar contained in the exhaust gas from the exhaust gas, the particle size in the exhaust gas passage is 0.
An exhaust gas treatment device comprising means for free-falling metal particles within a range of 5 to 10 mm.
【０００８】[0008]
【作用】本発明は、排ガス中の重金属および重金属化合
物の蒸気、アルカリミスト、タールの除去方法におい
て、前記排ガス温度以下に冷却した金属粒子をその表面
温度が大幅に上昇しないように、すなわち排ガスの温度
を極力低下させないように該ガスと短時間だけ接触さ
せ、金属粒子表面に重金属および重金属化合物の蒸気、
アルカリミスト、タールを凝縮させてガス中より除去す
ることを特徴とする。According to the present invention, in the method for removing vapors of heavy metals and heavy metal compounds, exhaust gas, alkali mist and tar in exhaust gas, the surface temperature of metal particles cooled below the exhaust gas temperature is prevented from rising significantly, that is, Vapors of heavy metals and heavy metal compounds on the surface of the metal particles are kept in contact with the gas for a short time so as not to lower the temperature as much as possible
It is characterized in that alkali mist and tar are condensed and removed from the gas.
【０００９】すなわち本発明による排ガス中の重金属お
よび重金属化合物の蒸気、アルカリミスト、タールの除
去方法は、高温の排ガスの流路に、排ガス温度以下に冷
却した金属粒子を落下させる。このとき排ガス温度にあ
わせて金属粒子の表面温度が５０〜３００℃の範囲に、
好ましくは１００〜２００℃の範囲になるように、落下
距離または接触時間を適宜設定する。金属粒子の表面温
度が３００℃より高いと、重金属、重金属化合物、アル
カリミスト、タールのうち、より低沸点成分の金属粒子
表面への凝縮効率が悪くなる。また、金属粒子の表面温
度を５０℃より低く抑えようとすると、ガスとの接触時
間を著しく短くしなければならなず、したがって重金属
および重金属化合物の蒸気、アルカリミスト、タールの
捕集効率が低くなる。That is, according to the method for removing vapors of heavy metals and heavy metal compounds, alkali mist, and tar in exhaust gas according to the present invention, metal particles cooled to a temperature lower than the exhaust gas temperature are dropped in a high temperature exhaust gas passage. At this time, the surface temperature of the metal particles falls within the range of 50 to 300 ° C. according to the exhaust gas temperature,
Preferably, the fall distance or the contact time is appropriately set so as to fall within the range of 100 to 200 ° C. When the surface temperature of the metal particles is higher than 300 ° C., the condensation efficiency of the lower boiling point component of the heavy metal, the heavy metal compound, the alkali mist, and the tar on the surface of the metal particles becomes poor. Further, if the surface temperature of the metal particles is to be kept lower than 50 ° C., the contact time with the gas must be shortened remarkably, so that the collection efficiency of vapors of heavy metals and heavy metal compounds, alkali mist and tar is low. Become.
【００１０】金属粒子形状は特に限定されるものでな
く、球状、円筒状、多面体形状などいずれも使用可能で
あるが、取り扱いが容易な点で球状が一般的である。金
属粒子の粒径は０. ５〜１０ｍｍの範囲が好ましく、よ
り好ましくは０. ５〜５ｍｍの範囲である。粒径が０.
５ｍｍより小さいと、金属粒子がガスに同伴されて系外
に散出する恐れがある。一方、金属粒子の粒径が１０ｍ
ｍより大きいと、金属粒子とガスとの接触面積が極端に
小さくなり、重金属および重金属化合物の蒸気、アルカ
リミスト、タールの捕集効率が低くなる。The shape of the metal particles is not particularly limited, and any of spherical shape, cylindrical shape, polyhedral shape and the like can be used, but spherical shape is generally used because it is easy to handle. The particle size of the metal particles is preferably in the range of 0.5 to 10 mm, more preferably in the range of 0.5 to 5 mm. Particle size is 0.
If it is smaller than 5 mm, the metal particles may be entrained in the gas and scattered out of the system. On the other hand, the particle size of the metal particles is 10 m
If it is larger than m, the contact area between the metal particles and the gas becomes extremely small, and the collection efficiency of vapor of heavy metals and heavy metal compounds, alkali mist, and tar becomes low.
【００１１】金属粒子の材質は、使用条件下において機
械的、熱的および化学的に安定な金属であればいずれの
金属でもよいが、通常は鉄系の金属材料が用いられる。
ガス中に硫化水素、塩化水素などの腐食性成分が含まれ
る場合には、ステンレス粒子、ニッケル粒子を使用す
る。また使用条件によっては、内部が中空の金属粒子あ
るいは内部に金属酸化物を充填した二層構造の金属粒子
も使用される。The material of the metal particles may be any metal that is mechanically, thermally and chemically stable under the conditions of use, but iron-based metal materials are usually used.
When the gas contains corrosive components such as hydrogen sulfide and hydrogen chloride, stainless particles and nickel particles are used. Further, depending on the use conditions, metal particles having a hollow inside or metal particles having a two-layer structure in which a metal oxide is filled inside are also used.
【００１２】本発明に係わる排ガスの処理方法の最大の
特徴は、高温の排ガスと金属粒子を接触させる際に、金
属粒子の表面温度が５０〜３００℃の範囲になるよう
に、好ましくは１００〜２００℃の範囲になるように、
短時間だけ接触させる点にある。排ガスと金属粒子との
接触時間は、排ガスの組成、比熱、熱伝導率、粘度、温
度、流量、空塔速度、および金属粒子の材質、形状、寸
法、比熱、熱伝導率、初期温度、使用量、移動速度等に
よって適宜決定される。The greatest feature of the method for treating exhaust gas according to the present invention is that when the high temperature exhaust gas and the metal particles are brought into contact with each other, the surface temperature of the metal particles is in the range of 50 to 300 ° C., preferably 100 to 300 ° C. To be in the range of 200 ° C
It is in the point of contact only for a short time. The contact time between the exhaust gas and the metal particles includes the composition of the exhaust gas, the specific heat, the thermal conductivity, the viscosity, the temperature, the flow rate, the superficial velocity, and the material, the shape, the size, the specific heat, the thermal conductivity, the initial temperature, and the use of the metal particles. It is appropriately determined depending on the amount, moving speed and the like.
【００１３】本発明で使用される金属粒子は、ガス中の
重金属および重金属化合物の蒸気、アルカリミスト、タ
ールを凝集する以外に、ガス中のダストの一部を捕集す
る能力を有する。The metal particles used in the present invention have the ability to collect a part of the dust in the gas, in addition to aggregating the vapor, alkali mist and tar of the heavy metals and heavy metal compounds in the gas.
【００１４】本発明に係わる排ガス中の重金属および重
金属化合物は、亜鉛、塩化亜鉛、砒素、塩化砒素、酸化
砒素、カドミウム、塩化カドミウム、酸化カドミウム、
水銀、塩化水銀、塩化鉛、酸化鉛、燐、塩化燐、酸化
燐、塩化ニッケル、塩化鉄などである。また、排ガス中
のアルカリミストは、水酸化ナトリウム、塩化ナトリウ
ム、硫酸ナトリウム、水酸化カリウム、塩化カリウム、
硫酸カリウムなどのミストである。また、タールは単環
および多環の芳香族化合物である。表１にこれらの主な
ものについて、その沸点または昇華点の温度を示す。Heavy metals and heavy metal compounds in exhaust gas according to the present invention include zinc, zinc chloride, arsenic, arsenic chloride, arsenic oxide, cadmium, cadmium chloride, cadmium oxide,
Examples include mercury, mercury chloride, lead chloride, lead oxide, phosphorus, phosphorus chloride, phosphorus oxide, nickel chloride and iron chloride. Alkaline mist in the exhaust gas is sodium hydroxide, sodium chloride, sodium sulfate, potassium hydroxide, potassium chloride,
It is a mist such as potassium sulfate. Tar is a monocyclic or polycyclic aromatic compound. Table 1 shows the temperatures of boiling points or sublimation points of these main substances.
【００１５】[0015]
【表１】 [Table 1]
【００１６】本発明においては、排ガスと金属粒子とが
均一に接触することが望ましく、そのためには、金属粒
子が自由落下する流路内に、１または複数の棒状の部材
を設ければ、金属粒子が自由落下時にこれらの棒材に当
たって流路内に拡散し、排ガスと金属粒子との接触空間
をより広くとることが可能となる。この場合において、
棒材としては丸棒でもよいし角棒でもよい。また、棒材
を互いに直角方向にずらして配置すれば、より拡散する
ことができる。In the present invention, it is desirable that the exhaust gas and the metal particles come into uniform contact with each other. To this end, if one or a plurality of rod-shaped members are provided in the flow path where the metal particles fall freely, When the particles fall freely, they hit the rods and diffuse into the flow path, so that the contact space between the exhaust gas and the metal particles can be made wider. In this case,
The rod may be a round rod or a square rod. Further, if the rods are arranged so as to be offset from each other in the direction perpendicular to each other, they can be diffused more.
【００１７】[0017]
【実施例】本発明の実施例を図面にもとづいて説明す
る。Embodiments of the present invention will be described with reference to the drawings.
【００１８】図１は本発明の実施例を示した図である。
図１において、１は排ガス入口、２は凝縮除去装置、３
は入口弁、４は鋼製球状粒子、５は出口弁、６は排ガス
出口である。また図１において、矢印は排ガスの流れる
方向を示している。排ガス入口１より凝縮除去装置２に
侵入した排ガスが、入口弁３を開放することによって、
凝縮除去装置内に自由落下した鋼製球状粒子４と接触
し、粒子の表面に重金属および重金属化合物の蒸気、ア
ルカリミスト、タール等を凝縮させる。その後鋼製球状
粒子４はさらに落下し、開放してある出口弁４を通過し
て、回収される。一方、凝縮除去された排ガスは排ガス
出口６より送られる。FIG. 1 is a diagram showing an embodiment of the present invention.
In FIG. 1, 1 is an exhaust gas inlet, 2 is a condensation removal device, 3
Is an inlet valve, 4 is steel spherical particles, 5 is an outlet valve, and 6 is an exhaust gas outlet. Moreover, in FIG. 1, the arrow indicates the direction in which the exhaust gas flows. Exhaust gas that has entered the condensation removal device 2 through the exhaust gas inlet 1 opens the inlet valve 3
It contacts the steel spherical particles 4 that have fallen freely in the condensing / removing device and condenses vapor of heavy metals and heavy metal compounds, alkali mist, tar, etc. on the surface of the particles. After that, the spherical steel particles 4 further fall, pass through the opened outlet valve 4, and are recovered. On the other hand, the exhaust gas condensed and removed is sent from the exhaust gas outlet 6.
【００１９】図１に示した装置を用いて、以下の実験を
行った。亜鉛を主体とする重金属および重金属化合物の
蒸気３０００ｍｇ/ Ｎｍ3 、アルカリミスト２００ｍｇ
/ Ｎｍ3 、タール１０００ｍｇ/ Ｎｍ3 を含有する約８
００℃のガスを、ガス入口１より凝縮除去装置２に導入
した。一方、凝縮除去装置上部の入口弁３より、２５℃
に保持した直径２ｍｍの鋼製球状粒子４を、ガス流量１
Ｎｍ3 あたり１秒あたり約１００ｇの割合で投入した。
凝縮除去装置内でのガスと鋼球の接触時間は、約１秒で
あった。The following experiment was conducted using the apparatus shown in FIG. Vapor of heavy metals and heavy metal compounds consisting mainly of zinc 3000 mg / Nm 3 , alkali mist 200 mg
/ Nm 3 , about 1000 mg containing tar / Nm 3
A gas at 00 ° C. was introduced into the condensation removal device 2 through the gas inlet 1. On the other hand, from the inlet valve 3 above the condensing / removing device, 25 ° C
The spherical particles 4 made of steel and having a diameter of 2 mm held in
It was charged at a rate of about 100 g per second per Nm 3 .
The contact time between the gas and the steel balls in the condensation removing device was about 1 second.
【００２０】その結果、出口弁５に到達した鋼球の表面
温度は約１５０℃であった。また、ガス出口６より排出
されたガスの温度は約７９５℃であり、ガス中の重金属
および重金属化合物の蒸気、アルカリミスト、タールの
濃度は、それぞれ２１０ｍｇ/ Ｎｍ3 、１０ｍｇ/ Ｎｍ
3 、１８０ｍｇ/ Ｎｍ3 で、入口濃度に対してそれぞれ
９３％、９５％、８２％の除去率であった。As a result, the surface temperature of the steel balls reaching the outlet valve 5 was about 150 ° C. The temperature of the gas discharged from the gas outlet 6 is about 795 ° C., and the concentrations of heavy metal and heavy metal compound vapor, alkali mist, and tar are 210 mg / Nm 3 and 10 mg / Nm, respectively.
At 3 , 180 mg / Nm 3 , the removal rates were 93%, 95%, and 82%, respectively, with respect to the inlet concentration.
【００２１】図２は本発明の図１とは異なる実施例を示
した図である。以下の図において図１と同一部分には同
一符号を付し説明を省略する。図２は排ガスの流れる方
向を、図１とは逆に下から上に向かって流し、排ガスの
鋼製球状粒子４に接触する機会を増やすことで、除去効
率を高めている。FIG. 2 shows an embodiment of the present invention different from that shown in FIG. In the following figures, the same parts as those in FIG. In FIG. 2, the removal efficiency is enhanced by causing the exhaust gas to flow in the direction opposite to that of FIG. 1 from the bottom to the top and increasing the chances of contacting the steel spherical particles 4 of the exhaust gas.
【００２２】図３は本発明の凝縮除去装置内に複数の棒
状部材を設けた場合の実施例を示した図である。図３に
おいて、７は棒状部材である。入口弁３から自由落下し
た鋼製球状粒子４は棒状部材７に当たり、凝縮除去装置
２の内部で拡散し、排ガスと鋼製球状粒子４の接触する
空間を広くすることで、除去効率を高めている。また本
実施例において、排ガス入口１を凝縮除去装置２の下部
に、排ガス出口６を上部に設けて、排ガスの流れを鋼製
球状粒子４の落下方向と逆にして、排ガスの鋼製球状粒
子４に接触する機会を増やすことで、除去効率を高めて
も良い。FIG. 3 is a diagram showing an embodiment in which a plurality of rod-shaped members are provided in the condensation removing apparatus of the present invention. In FIG. 3, 7 is a rod-shaped member. The steel spherical particles 4 free-falling from the inlet valve 3 hit the rod-shaped member 7, diffuse inside the condensing / removing device 2, and widen the space where the exhaust gas and the steel spherical particles 4 come into contact with each other, thereby enhancing the removal efficiency. There is. Further, in this embodiment, the exhaust gas inlet 1 is provided in the lower part of the condensation removal device 2 and the exhaust gas outlet 6 is provided in the upper part so that the flow of the exhaust gas is opposite to the falling direction of the steel spherical particles 4, and the steel spherical particles of the exhaust gas are provided. The removal efficiency may be increased by increasing the chances of contacting the No. 4 electrode.
【００２３】[0023]
【発明の効果】以上のように、本発明によれば、高温ガ
ス中から重金属および重金属化合物の蒸気、アルカリミ
スト、タールを高効率で除去でき、しかも除去操作時
に、高温ガスのガス温度をほとんど低下させないため、
ガスの保有する顕熱を損なうことなく、該顕熱を下流側
で有効に活用できる等、顕著な効果を奏ずるものであ
る。As described above, according to the present invention, vapors of heavy metals and heavy metal compounds, alkali mist, and tar can be removed from a high temperature gas with high efficiency, and the gas temperature of the high temperature gas can be almost eliminated during the removing operation. Because it does not lower
The sensible heat possessed by the gas can be effectively utilized in the downstream side without impairing the sensible heat retained by the gas.
【図１】本発明の実施例を示した図。FIG. 1 is a diagram showing an embodiment of the present invention.
【図２】本発明の図１とは異なる実施例を示した図。FIG. 2 is a diagram showing an embodiment different from FIG. 1 of the present invention.
【図３】本発明の凝縮除去装置内に複数の棒状部材を設
けた場合の例を示した図。FIG. 3 is a diagram showing an example of a case where a plurality of rod-shaped members are provided in the condensation removal device of the present invention.
１ 排ガス入口 ２ 凝縮除去装置 ４ 鋼製球状粒子 1 Exhaust gas inlet 2 Condensation removal device 4 Steel spherical particles
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｂ０１Ｄ 53/72 53/46 Ｂ０１Ｄ 53/34 １２０ Ｄ １２０ Ａ １３６ Ｚ (72)発明者 浅沼 稔 東京都千代田区丸の内一丁目１番２号 日 本鋼管株式会社内 (72)発明者 古川 武 東京都千代田区丸の内一丁目１番２号 日 本鋼管株式会社内─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI Technical indication location B01D 53/72 53/46 B01D 53/34 120 D 120 A 136 Z (72) Inventor Minoru Asanuma Tokyo Marunouchi 1-2-2 Marunouchi, Chiyoda-ku Nihon Kokan KK (72) Inventor Takeshi Furukawa 1-2 1-2 Marunouchi Marunouchi, Chiyoda-ku, Tokyo
Claims (2)
化合物の蒸気、アルカリミスト、タールを排ガス中より
除去する排ガスの処理方法において、前記排ガス温度以
下に冷却した金属粒子をその表面温度が５０〜３００℃
の範囲になるように排ガスと接触させ、金属粒子表面に
前記物質を凝縮させて排ガス中より除去することを特徴
とする排ガスの処理方法。1. A method for treating exhaust gas, which removes vapors, alkali mists, and tars of heavy metals and heavy metal compounds contained in the exhaust gas from the exhaust gas, wherein the metal particles cooled to the exhaust gas temperature or lower have a surface temperature of 50 to 300. ℃
The method for treating exhaust gas is characterized in that the substance is brought into contact with exhaust gas so that the content of the substance falls within the range, and the substance is condensed on the surface of the metal particles and removed from the exhaust gas.
化合物の蒸気、アルカリミスト、タールを排ガス中より
除去する排ガスの処理装置において、排ガス流路中に粒
子径が０．５〜１０ｍｍの範囲の金属粒子を自由落下さ
せる手段を有することを特徴とする排ガスの処理装置。2. An exhaust gas treating apparatus for removing vapor, alkali mist, and tar of heavy metals and heavy metal compounds contained in exhaust gas from exhaust gas, the metal having a particle size in the range of 0.5 to 10 mm in the exhaust gas passage. An exhaust gas treatment device comprising means for allowing particles to fall freely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27330594A JPH08131769A (en) | 1994-11-08 | 1994-11-08 | Method and apparatus for treating exhaust gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27330594A JPH08131769A (en) | 1994-11-08 | 1994-11-08 | Method and apparatus for treating exhaust gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08131769A true JPH08131769A (en) | 1996-05-28 |
Family
ID=17526021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27330594A Withdrawn JPH08131769A (en) | 1994-11-08 | 1994-11-08 | Method and apparatus for treating exhaust gas |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08131769A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100946379B1 (en) * | 2009-07-16 | 2010-03-08 | (주)창신기업 | Apparatus for gasification of wood biomass |
| CN108939705A (en) * | 2017-05-29 | 2018-12-07 | 黄华丽 | The purification method and device of smog in a kind of air-flow |
-
1994
- 1994-11-08 JP JP27330594A patent/JPH08131769A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100946379B1 (en) * | 2009-07-16 | 2010-03-08 | (주)창신기업 | Apparatus for gasification of wood biomass |
| CN108939705A (en) * | 2017-05-29 | 2018-12-07 | 黄华丽 | The purification method and device of smog in a kind of air-flow |
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| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20020115 |