JP2003053135A - Apparatus for treating exhaust gas - Google Patents
Apparatus for treating exhaust gasInfo
- Publication number
- JP2003053135A JP2003053135A JP2001250077A JP2001250077A JP2003053135A JP 2003053135 A JP2003053135 A JP 2003053135A JP 2001250077 A JP2001250077 A JP 2001250077A JP 2001250077 A JP2001250077 A JP 2001250077A JP 2003053135 A JP2003053135 A JP 2003053135A
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- Japan
- Prior art keywords
- exhaust gas
- adsorbent
- air
- transportation
- blower
- 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.)
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Links
Landscapes
- Treating Waste Gases (AREA)
- Combined Means For Separation Of Solids (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、有害物質を含有す
る各種の排ガスを炭素質吸着材を充填した吸着塔を用い
て処理する乾式排ガス処理装置に関し、更に詳述すれば
吸着塔と再生装置との間の炭素質吸着材の輸送に際し、
空気輸送手段を用いる乾式排ガス処理装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dry exhaust gas treatment apparatus for treating various exhaust gases containing harmful substances using an adsorption tower filled with a carbonaceous adsorbent, and more specifically, an adsorption tower and a regenerating apparatus. When transporting the carbonaceous adsorbent between
The present invention relates to a dry exhaust gas treatment device using an air transportation means.
【０００２】[0002]
【従来の技術】各種のボイラ排ガス、製鉄所の焼結炉排
ガス、都市ゴミの焼却炉排ガス等、多くの排ガスには、
ダスト、硫黄酸化物、窒素酸化物、重金属、ダイオキシ
ン類等の有害物質が含まれている。2. Description of the Related Art Many kinds of exhaust gas such as exhaust gas from various boilers, exhaust gas from a sintering furnace of a steel mill, exhaust gas from an incinerator of municipal waste, etc.
It contains harmful substances such as dust, sulfur oxides, nitrogen oxides, heavy metals, and dioxins.
【０００３】これらの排ガスの処理方法として、粒状の
炭素質吸着材を充填した吸着塔に排ガスを導入し、排ガ
スを吸着材と接触させることにより、有害物質を除去す
る方法がある。As a method of treating these exhaust gases, there is a method of removing harmful substances by introducing the exhaust gas into an adsorption tower filled with a granular carbonaceous adsorbent and bringing the exhaust gas into contact with the adsorbent.
【０００４】図４に、この排ガス処理装置の概要を示
す。図４中、有害物質を含有する排ガスは排ガス供給ラ
イン１０を通り、粒状の炭素質吸着材３０が充填された
吸着塔２０に送られ、ここで有害物質が除去された後、
処理排ガス排出ライン１２を通って外部に排出される。FIG. 4 shows an outline of this exhaust gas treating apparatus. In FIG. 4, the exhaust gas containing the harmful substance is sent to the adsorption tower 20 filled with the particulate carbonaceous adsorbent 30 through the exhaust gas supply line 10, and after the harmful substance is removed therein,
It is discharged to the outside through the treated exhaust gas discharge line 12.
【０００５】即ち、排ガス中に含まれるダスト、硫黄酸
化物、重金属、ダイオキシン類等の有害物質は、吸着塔
２０の内部に充填された炭素質吸着材に吸着されて除去
される。That is, harmful substances such as dust, sulfur oxides, heavy metals and dioxins contained in the exhaust gas are adsorbed and removed by the carbonaceous adsorbent filled inside the adsorption tower 20.
【０００６】また、排ガス中に含まれる窒素酸化物は、
排ガス中にアンモニアを添加することにより、炭素質吸
着材の触媒作用によって窒素と水に分解される。The nitrogen oxides contained in the exhaust gas are
By adding ammonia to the exhaust gas, it is decomposed into nitrogen and water by the catalytic action of the carbonaceous adsorbent.
【０００７】排ガス処理時間が経過するに従って、炭素
質吸着材は有害物質の吸着により処理性能が低下するの
で、排ガスの処理を更に継続して行うためには、吸着材
の再生処理を行う必要がある。As the exhaust gas treatment time elapses, the carbonaceous adsorbent is deteriorated in its treatment performance due to the adsorption of harmful substances. Therefore, in order to continue the treatment of the exhaust gas, it is necessary to regenerate the adsorbent. is there.
【０００８】即ち、吸着塔２０に充填された吸着材３０
は、吸着塔底部２２から再生装置４０へ送られてここで
処理された後、再生された吸着材は再び吸着塔頂部２４
へ戻される。That is, the adsorbent 30 filled in the adsorption tower 20.
Is sent from the bottom 22 of the adsorption tower to the regenerator 40 where it is treated, and then the regenerated adsorbent is again fed to the top 24 of the adsorption tower.
Returned to.
【０００９】このような方法で再生処理を行うために、
吸着塔２０内に充填された吸着材は、吸着塔頂部から吸
着塔底部に向って緩やかに流下する移動層を形成するこ
とになる。In order to perform the reproduction process by such a method,
The adsorbent filled in the adsorption tower 20 forms a moving bed that gently flows down from the top of the adsorption tower toward the bottom of the adsorption tower.
【００１０】再生装置４０で行われる再生処理として
は、主として２つの処理がある。There are mainly two types of reproduction processing performed by the reproduction device 40.
【００１１】第１の処理は、吸着材を高温に加熱するこ
とにより、吸着した硫黄酸化物等の有害物質を脱離する
加熱処理である。有害物質の中には、ダイオキシン類等
のように加熱再生処理により分解して消滅するものもあ
る。The first treatment is a heat treatment for desorbing adsorbed harmful substances such as sulfur oxides by heating the adsorbent to a high temperature. Some toxic substances, such as dioxins, decompose and disappear by heat regeneration treatment.
【００１２】第２の処理は、粒状の吸着材から微粉を除
去するための分級処理である。除去する微粉としては、
捕集したダストと粉化した吸着材等がある。The second treatment is a classification treatment for removing fine powder from the granular adsorbent. As fine powder to remove,
There are dust collected and powdered adsorbent.
【００１３】再生処理としては、その他の処理も含まれ
るが、本発明において「再生処理」とは、少なくとも上
記の加熱処理及び分級処理の何れか一つを含む処理を指
すこととする。従って、再生装置４０は、ここで定義し
た再生処理を行う装置である。Although other treatments are included in the regeneration treatment, the "regeneration treatment" in the present invention means a treatment including at least one of the above-mentioned heat treatment and classification treatment. Therefore, the playback device 40 is a device that performs the playback process defined here.
【００１４】上記再生処理を行うために、吸着材３０は
吸着塔２０と再生装置４０との間を循環することにな
る。そこで、吸着材３０を循環させるためには、吸着塔
２０の底部２２から再生装置４０へ吸着材を送るための
輸送手段３１と、再生装置４０から吸着塔２０の頂部２
４へ吸着材を送るための輸送手段３２が必要になる。The adsorbent 30 is circulated between the adsorption tower 20 and the regenerator 40 in order to carry out the regenerating process. Therefore, in order to circulate the adsorbent 30, the transportation means 31 for sending the adsorbent from the bottom portion 22 of the adsorption tower 20 to the regenerator 40 and the top portion 2 of the adsorption tower 20 from the regenerator 40.
A transport means 32 is needed to deliver the adsorbent to 4.
【００１５】これらの輸送手段としては、シュ−トを用
いて重力で輸送する部分も含まれるが、全体的には、吸
着塔２０の底部２２から頂部２４に向って吸着材を輸送
することになるので、動力を用いて下から上に持ち上げ
る揚程を備えた輸送手段が必要になる。Although these transportation means include a portion which is transported by gravity using a shoot, as a whole, the adsorbent is transported from the bottom 22 to the top 24 of the adsorption tower 20. Therefore, a transportation means having a lift for lifting from the bottom by using power is required.
【００１６】即ち、輸送手段３１又は輸送手段３２の少
なくとも一方には、揚程を備えた輸送手段が必要であ
る。That is, at least one of the transportation means 31 and the transportation means 32 requires a transportation means having a lift.
【００１７】従来、揚程を備えた輸送手段としては、バ
ケットコンベアが用いられている。粒状の炭素質吸着材
は輸送中に壊れやすいので、吸着材の破壊をできる限り
少なくするためには、バケットコンベアが最も実用的で
あると従来考えられていた。しかしながら、バケットコ
ンベアは非常に高価である。また、機体が大きいため、
コンベア自身が大きな設置スペ−スを必要とし、その結
果周囲に配置する他の装置や機器類の配置にも大きな制
約を与える。Conventionally, a bucket conveyor has been used as a transportation means having a lifting head. Since granular carbonaceous adsorbents are easily broken during transportation, it has been conventionally considered that the bucket conveyor is most practical in order to minimize the destruction of the adsorbents. However, bucket conveyors are very expensive. Also, because the aircraft is large,
The conveyor itself requires a large installation space and, as a result, places a great restriction on the arrangement of other devices and equipment arranged around it.
【００１８】更に、バケットコンベアは比較的故障やト
ラブルの多い機械である。特に、排ガスがコンベア機体
内に流入すると故障やトラブルの原因となることが多
い。排ガス中の水分が機体内で凝縮することにより、機
体内に微粉の付着や堆積を起こし、また、排ガス中の酸
性物質により機体内が腐蝕を起こすからである。従っ
て、機体内に排ガスが流入することを完全に防止する必
要があり、このために多くの付帯設備を備えることが要
求される。Further, the bucket conveyor is a machine with a relatively large number of troubles and troubles. In particular, when the exhaust gas flows into the conveyor body, it often causes troubles and troubles. This is because the water in the exhaust gas is condensed in the airframe to cause fine powder to be attached or deposited in the airframe, and the acidic substance in the exhaust gas causes corrosion in the airframe. Therefore, it is necessary to completely prevent the exhaust gas from flowing into the fuselage, and for this reason, it is required to provide many incidental equipment.
【００１９】その上、実際にバケットコンベアを使用し
てみると、吸着材の破壊は予想以上に大きいことが分か
った。吸着材がバケットに収まって輸送されている間は
破壊されないが、吸着材がバケットに乗り移る供給部
や、バケットから払い出される排出部において吸着材の
破壊が引き起されるためである。Moreover, when the bucket conveyor was actually used, it was found that the destruction of the adsorbent was larger than expected. This is because the adsorbent is not destroyed while it is stored in the bucket and transported, but the adsorbent is destroyed in the supply unit where the adsorbent transfers to the bucket or the discharge unit which is discharged from the bucket.
【００２０】輸送過程等で破壊されて微粉となった吸着
材は、粒子状吸着材から分離して系外に取り出す必要が
ある。微粉となった吸着材が分離されること無く吸着塔
内に戻されると、処理排ガス中にダストとして混入する
からである。The adsorbent which is broken into fine powder during the transportation process or the like needs to be separated from the particulate adsorbent and taken out of the system. This is because if the finely divided adsorbent is returned to the adsorption tower without being separated, it will be mixed as dust in the treated exhaust gas.
【００２１】一方、微粉となった吸着材が系外に排出さ
れると、その量だけ新しい吸着材が補給されなければな
らない。従って、その微粉化の大小は設備の経済性に大
きく影響を与える。従来、吸着材の補給量は、循環する
吸着材量の１〜２質量％である場合が実用的な許容範囲
であるとされている。On the other hand, when the finely divided adsorbent is discharged out of the system, a new amount of the adsorbent must be replenished. Therefore, the size of the pulverization greatly affects the economical efficiency of the equipment. Conventionally, it has been considered that the replenishment amount of the adsorbent is within a practical allowable range when it is 1 to 2% by mass of the circulating adsorbent amount.
【００２２】[0022]
【発明が解決しようとする課題】本発明者は従来のバケ
ットコンベアに代る輸送手段を検討した結果、空気輸送
に着目し、これについて具体的な検討を行うことにし
た。DISCLOSURE OF THE INVENTION As a result of studying a transportation means which replaces the conventional bucket conveyor, the present inventor has focused on pneumatic transportation and decided to make a concrete study on this.
【００２３】空気輸送とは、管路内の気流により微粒体
を浮遊させて輸送する装置である。管路内に流す気体は
空気に限定されないが、空気を用いることが非常に多い
ので、空気輸送と呼ばれている。空気輸送は、その主要
部が送風機と配管だけであるため、安価なものである。
また、バケットコンベアのように、配置上の制約が全く
ない。更に、故障やトラブルが少ない輸送手段である。Pneumatic transportation is an apparatus for suspending and transporting fine particles by an air flow in a pipeline. The gas flowing in the pipeline is not limited to air, but air is used in many cases, so it is called pneumatic transportation. Pneumatic transportation is inexpensive because its main part is only a blower and piping.
In addition, there is no restriction on the arrangement unlike the bucket conveyor. Furthermore, it is a transportation means with few failures and troubles.
【００２４】本発明者は、吸着材の輸送手段として空気
輸送を採用すると、吸着材の破壊が非常に多いと考えて
いた。しかし、実際にテストを行って、空気輸送におけ
る吸着材の破壊の程度を調べてみると、それほど極端に
多くないことがわかった。The inventor of the present invention thought that the use of pneumatic transportation as a means for transporting the adsorbent would cause a great number of breakage of the adsorbent. However, when the test was actually conducted to examine the degree of destruction of the adsorbent in pneumatic transportation, it was found that the number was not extremely large.
【００２５】また、空気輸送では配管の曲り部や終端の
排出部において破壊が多く発生するので、配管の曲り部
をできる限り少なくし、これらの材質や形状等に対して
適当な配慮をすることにより、破壊を抑制できることを
確認した。Further, in pneumatic transportation, many breaks occur in the bent portion of the pipe and the discharge portion at the end. Therefore, the bent portion of the pipe should be minimized and appropriate consideration should be given to the material and shape of these. Therefore, it was confirmed that the destruction can be suppressed.
【００２６】更に、検討の結果、空気輸送は非常に大き
な利点があることを発見し、本発明を完成するに至っ
た。Further, as a result of the study, it was discovered that pneumatic transportation had a great advantage, and the present invention was completed.
【００２７】空気輸送を採用する本発明の利点は次のと
おりである。
吸着材の補給量は、循環する吸着材量の１〜２質量％
とすることが可能であり、従来のバケットコンベアと同
程度である。このため、空気輸送が本来安価であるこ
と、配置上の制約を生じないこと等の多くの利点を十分
に享受できる。
間欠的な空気輸送方法を採用することにより、１台の
送風機を複数の輸送ラインで共用することが可能にな
り、設備を大幅に簡略化することができる。
排ガスの流入防止対策は必要であるが、バケットコン
ベアと比較して排ガスの流入防止用付帯設備が簡素化で
き、設備を大幅に簡略化できる。
設備全体が簡略化されることにより、設備の信頼性が
向上し、自動化が容易となり、運転操作の容易な設備と
することができる。The advantages of the present invention that employ pneumatic transportation are as follows. Adsorbent supply amount is 1-2% by mass of the circulating adsorbent amount.
It is possible to set the same as the conventional bucket conveyor. For this reason, many advantages such as pneumatic transportation originally being inexpensive and no restrictions on arrangement are generated can be fully enjoyed. By adopting the intermittent air transportation method, one blower can be shared by a plurality of transportation lines, and the equipment can be greatly simplified. Although it is necessary to take measures to prevent the inflow of exhaust gas, the auxiliary equipment for preventing the inflow of exhaust gas can be simplified compared to the bucket conveyor, and the equipment can be greatly simplified. By simplifying the entire facility, the reliability of the facility is improved, automation is facilitated, and the facility can be easily operated.
【００２８】従って、本発明の目的とするところは、上
記問題を解決した排ガス処理装置を提供することにあ
る。Therefore, it is an object of the present invention to provide an exhaust gas treating apparatus which solves the above problems.
【００２９】[0029]
【課題を解決するための手段】上記目的を達成する本発
明は以下に記載するものである。The present invention which achieves the above object is as follows.
【００３０】〔１〕 排ガス中の有害物質除去用炭素質
吸着材を充填した移動層式の吸着塔と、有害物質の除去
性能が低下した吸着材を再生処理する再生装置と、吸着
塔から再生装置へ有害物質の除去能力が低下した吸着材
を送る輸送手段と、再生した吸着材を再生装置から吸着
塔へ送る輸送手段とを備える排ガス処理装置において、
前記各輸送手段の少なくとも一部が送風機と連結した空
気輸送ラインからなることを特徴とする排ガス処理装
置。[1] A moving bed type adsorption tower filled with a carbonaceous adsorbent for removing harmful substances in exhaust gas, a regenerator for regenerating an adsorbent having reduced harmful substance removal performance, and a regeneration from the adsorption tower In an exhaust gas treatment apparatus comprising a transport means for sending an adsorbent having a reduced ability to remove harmful substances to the apparatus, and a transport means for sending the regenerated adsorbent from the regenerator to the adsorption tower,
An exhaust gas treatment apparatus, wherein at least a part of each of the transportation means comprises an air transportation line connected to a blower.
【００３１】〔２〕 前記空気輸送ラインと送風機との
間に弁を介装してなり、前記弁を開閉することにより吸
着材の輸送を間欠的に行う〔１〕に記載の排ガス処理装
置。[2] The exhaust gas treating apparatus according to [1], wherein a valve is provided between the air transportation line and the blower, and the adsorbent is intermittently transported by opening and closing the valve.
【００３２】〔３〕 ２以上の空気輸送ラインをそれぞ
れ弁を介して１台の送風機に連結してなり、各弁を切替
えることにより１台の送風機を２以上の空気輸送ライン
で共用する〔２〕に記載の排ガス処理装置。[3] Two or more air transport lines are connected to one blower via valves, and one blower is shared by two or more air transport lines by switching each valve [2 ] Exhaust gas treatment device according to.
【００３３】〔４〕 前記再生装置が、吸着材から微粉
を除去する風力分級機を備えると共に、前記送風機と分
級機とを連結する分級用空気供給ラインを備えてなり、
１台の送風機で空気輸送ライン用空気と風力分級機の分
級用空気とを供給する〔２〕又は〔３〕に記載の排ガス
処理装置。[4] The regenerator includes an air classifier for removing fine powder from the adsorbent, and an air supply line for classification that connects the blower and the classifier,
The exhaust gas treatment device according to [2] or [3], in which air for an air transportation line and air for classification of a wind force classifier are supplied by one blower.
【００３４】以下、図面を参照して本発明を詳細に説明
する。The present invention will be described in detail below with reference to the drawings.
【００３５】[0035]
【発明の実施の形態】バケットコンベアの場合は、連続
的な輸送を行う必要がある。間欠的な輸送を行うと、輸
送速度が遅いために変動に対する対応が間に合わなくな
る制御上の問題を生ずるからである。BEST MODE FOR CARRYING OUT THE INVENTION In the case of a bucket conveyor, it is necessary to carry out continuous transportation. This is because if intermittent transportation is performed, control problems cannot be dealt with in time due to the slow transportation speed, which causes problems in control.
【００３６】一方、空気輸送は、輸送速度が速いために
間欠的な輸送に適しており、間欠輸送を採用することに
より多くの利点が得られる。On the other hand, pneumatic transportation is suitable for intermittent transportation due to its high transportation speed, and many advantages can be obtained by adopting intermittent transportation.
【００３７】例えば、間欠輸送を採用することにより、
１台の送風機を複数の輸送ラインで共用して使用でき
る。これによって、設備全体を一層コンパクトにするこ
とができる。For example, by adopting intermittent transportation,
One blower can be shared by multiple transportation lines. As a result, the entire equipment can be made more compact.
【００３８】図１は、図４の従来装置における輸送手段
３１と輸送手段３２の両方に空気輸送を採用した例を示
す。FIG. 1 shows an example in which pneumatic transportation is adopted for both the transportation means 31 and the transportation means 32 in the conventional apparatus of FIG.
【００３９】輸送手段３１は、送風機６０、ライン６
１、ホッパ−７１及びライン６３で構成している。輸送
手段３２は、送風機６０、ライン６２、ホッパ−７２及
びライン６４で構成している。The transportation means 31 is a blower 60, line 6
1, a hopper 71 and a line 63. The transportation means 32 includes a blower 60, a line 62, a hopper 72, and a line 64.
【００４０】ライン６１及び６２の分岐部下流側に設け
た自動弁３５、３６を所定のプログラムで開閉すること
により、送風機６０を両方のライン６１、６２で交互に
使用することが可能となる。これによって、輸送手段３
１及び３２を交互に間欠運転できる。By opening and closing the automatic valves 35 and 36 provided on the downstream side of the branches of the lines 61 and 62 by a predetermined program, the blower 60 can be used alternately on both lines 61 and 62. Thereby, the transportation means 3
1 and 32 can be intermittently operated alternately.
【００４１】ホッパ−７１及び７２は、吸着材と空気と
を分離する機能を備えている。分離した空気は、ライン
６３及びライン６４を通して外部に排出するが、微粉を
含むためにバグフィルタ−（不図示）等で処理する。或
は、焼却炉排ガスの処理の場合には、そのまま焼却炉へ
送って微粉を焼却してもよい。The hoppers 71 and 72 have a function of separating the adsorbent from the air. The separated air is discharged to the outside through the lines 63 and 64, but since it contains fine powder, it is processed by a bag filter (not shown) or the like. Alternatively, in the case of treating the exhaust gas from the incinerator, the fine powder may be sent to the incinerator as it is to incinerate the fine powder.
【００４２】補給用の吸着材は、吸着材ホッパ−５０か
らライン６２に供給し、循環する吸着材と共に吸着塔２
０へ空気輸送する。図２は、本発明排ガス処理装置の他
の例を示すもので、この例においては再生処理を分級機
のみで構成し、分級機として風力分級機４１を備えてい
る場合を示す。The replenishing adsorbent is supplied from the adsorbent hopper 50 to the line 62, and the adsorbing tower 2 is supplied together with the circulating adsorbent.
Air transport to 0. FIG. 2 shows another example of the exhaust gas treating apparatus of the present invention. In this example, the regeneration process is constituted only by a classifier, and a wind classifier 41 is provided as a classifier.
【００４３】ここでは、図４で説明した輸送手段３１と
輸送手段３２のうち、輸送手段３１に空気輸送を採用
し、輸送手段３２はシュ−ト等の空気輸送以外の手段を
採用している。Here, of the transportation means 31 and the transportation means 32 described in FIG. 4, pneumatic transportation is adopted as the transportation means 31, and the transportation means 32 adopts means other than pneumatic transportation such as a shoot. .
【００４４】輸送手段３１は、送風機６０、ライン６
１、ホッパ−７１及びライン６３で構成している。The transport means 31 is a blower 60, line 6
1, a hopper 71 and a line 63.
【００４５】風力分級機４１において、吸着材３０に含
まれる微粉を風力によって除去する。即ち、吸着材３０
を、ホッパ−７１から分級機４１に供給し、輸送手段３
２によって分級機４１から排出させる。同時に、分級用
の空気を送風機６０からライン６５通して分級機４１に
送り、風力による分級を行う。In the wind force classifier 41, the fine powder contained in the adsorbent 30 is removed by the wind force. That is, the adsorbent 30
Are fed from the hopper 71 to the classifier 41, and the transportation means 3
It is discharged from the classifier 41 by 2. At the same time, air for classification is sent from the blower 60 to the classifier 41 through the line 65 to perform classification by wind force.
【００４６】除去した微粉は、空気と共にライン６６を
通して排出させ、さらに不図示のバグフィルタ−等で処
理する。或は、焼却炉排ガスの処理である場合には、焼
却炉へ送って焼却してもよい。The removed fine powder is discharged through a line 66 together with air, and is further processed by a bag filter (not shown) or the like. Alternatively, in the case of treatment of incinerator exhaust gas, it may be sent to the incinerator for incineration.
【００４７】従って、送風機６０は、吸着材の空気輸送
用と分級機の分級用の送風に共有しており、空気輸送と
分級操作とを交互に間欠的に行っている。これによっ
て、装置全体を一層コンパクトにすることができる。Therefore, the blower 60 is commonly used for the air transportation of the adsorbent and the air transportation of the classifier, and the air transportation and the classification operation are alternately performed intermittently. As a result, the entire device can be made more compact.
【００４８】なお、補給用の吸着材は、吸着材ホッパ−
５０からライン６１に供給することにより吸着塔２０か
ら排出する吸着材と一緒になり、ホッパー７１、分級機
４１を通って吸着塔２０に送られる。The replenishing adsorbent is the adsorbent hopper.
When it is supplied from 50 to the line 61, it is combined with the adsorbent discharged from the adsorption tower 20, and is sent to the adsorption tower 20 through the hopper 71 and the classifier 41.
【００４９】（排ガスの流入防止）前述のように、バケ
ットコンベアを用いた場合には、排ガスの流入防止に多
くの付帯設備を必要としたが、本発明においては大幅に
簡略化することができる。(Prevention of Inflow of Exhaust Gas) As described above, when the bucket conveyor is used, many incidental equipments are required to prevent the inflow of exhaust gas, but the present invention can be greatly simplified. .
【００５０】その例として、吸着塔２０に充填された吸
着材３０を、吸着塔底部２２から輸送手段３１に供給す
るための付帯機器を図３（ａ）、（ｂ）を用いて説明す
る。As an example thereof, an auxiliary device for supplying the adsorbent 30 filled in the adsorption tower 20 from the adsorption tower bottom 22 to the transportation means 31 will be described with reference to FIGS. 3 (a) and 3 (b).
【００５１】図３（ａ）は従来の付帯機器を示すもので
あり、この機器は次の操作を自動的に行う。
自動弁９１を開、９２を閉として、定量供給機８１を
運転する。これにより、吸着塔２０からホッパ−７３に
吸着材３０を抜出す。
次に、定量供給機８１を停止し、自動弁９１を閉、９
２を開とする。これにより、ホッパ−７３内の吸着材が
ホッパ−７４に移動する。
定量供給機８２は連続的に運転し、自動弁９３は開と
しておく。これにより、ホッパ−７４から、吸着材を連
続的にバケットコンベアに供給できることになる。FIG. 3A shows a conventional accessory device, which automatically performs the following operations. The automatic valve 91 is opened and 92 is closed to operate the constant quantity feeder 81. As a result, the adsorbent 30 is extracted from the adsorption tower 20 to the hopper-73. Next, the fixed quantity supply device 81 is stopped, and the automatic valve 91 is closed.
Open 2. As a result, the adsorbent in the hopper 73 moves to the hopper 74. The constant quantity feeder 82 is continuously operated, and the automatic valve 93 is kept open. As a result, the adsorbent can be continuously supplied from the hopper-74 to the bucket conveyor.
【００５２】ここで、自動弁９１又は９２は、常にどち
らか一方を閉としているので、排ガスが輸送手段３１内
に流入することを防ぐことができる。Here, since either the automatic valve 91 or 92 is always closed, the exhaust gas can be prevented from flowing into the transportation means 31.
【００５３】図３（ｂ）は本発明において用いる付帯機
器の一例を示すもので、次の操作を自動的に行う。
自動弁９１を開、９２を閉として、定量供給機８１を
運転する。これにより、吸着塔２０からホッパ−７３に
吸着材３０を抜出す。
次に、ライン６１に輸送用空気を流した状態で、定量
供給機８１を停止し、自動弁９１を閉、９２を開とす
る。これにより、ホッパ−７３内の吸着材が空気輸送さ
れる。FIG. 3B shows an example of an accessory device used in the present invention, in which the following operation is automatically performed. The automatic valve 91 is opened and 92 is closed to operate the constant quantity feeder 81. As a result, the adsorbent 30 is extracted from the adsorption tower 20 to the hopper-73. Next, with the transportation air flowing in the line 61, the constant quantity feeder 81 is stopped, the automatic valve 91 is closed, and 92 is opened. As a result, the adsorbent in the hopper-73 is pneumatically transported.
【００５４】ここで、自動弁９１又は９２は、常にどち
らか一方を閉としているので、排ガスが輸送手段３１内
に流入することを防ぐことができる。Here, since either one of the automatic valves 91 or 92 is always closed, it is possible to prevent the exhaust gas from flowing into the transportation means 31.
【００５５】図３（ａ）と、図３（ｂ）とを比較する
と、明らかに本発明において用いる付帯機器（図３
（ｂ））の方が簡略である。Comparing FIG. 3 (a) and FIG. 3 (b), it is obvious that the accessory equipment used in the present invention (FIG.
(B)) is simpler.
【００５６】付帯機器が簡略化できる理由は次の通りで
ある。図３（ａ）に示す付帯機器は、２つのホッパ−７
３、７４を設けている。これは、バケットコンベアの特
性から、吸着材を連続的に輸送する必要があるためであ
る。即ち、排ガスの流入を防止し、かつ連続的に吸着材
を輸送するという２つの条件を満たすために、２つのホ
ッパ−を設ける必要がある。The reason why the accessory device can be simplified is as follows. The incidental device shown in FIG. 3A has two hoppers-7.
3, 74 are provided. This is because it is necessary to continuously transport the adsorbent due to the characteristics of the bucket conveyor. That is, it is necessary to provide two hoppers in order to prevent the inflow of exhaust gas and to satisfy the two conditions of continuously transporting the adsorbent.
【００５７】これに対して図３（ｂ）に示す付帯機器
は、１つのホッパ−７３のみとすることができる。これ
は、空気輸送の特性から、間欠輸送の採用が可能である
ためである。On the other hand, the accessory device shown in FIG. 3B can be only one hopper-73. This is because intermittent transportation can be adopted due to the characteristics of pneumatic transportation.
【００５８】更に、図３（ａ）に示す付帯機器は、吸着
材をホッパ−７４からバケットコンベアに供給するため
に、定量供給機８２を必要とする。定量供給機８２を省
略すると、バケットコンベアに供給する吸着材量を一定
に制御できないことによる。Further, the auxiliary equipment shown in FIG. 3 (a) requires the constant quantity feeder 82 to feed the adsorbent from the hopper-74 to the bucket conveyor. This is because the amount of adsorbent supplied to the bucket conveyor cannot be controlled to be constant if the constant quantity feeder 82 is omitted.
【００５９】これに対して図３（ｂ）に示す付帯機器
は、定量供給機を必要とせず、吸着材をホッパ−７３か
ら直接輸送配管に供給できる。これは、空気輸送の場合
は、空気の流れによって自然に定量的に排出するからで
あり、ホッパ−の排出口の大きさを適宜選定することに
より、吸着材を定量的に排出することができる。On the other hand, the auxiliary equipment shown in FIG. 3 (b) does not require a constant quantity feeder and can directly supply the adsorbent from the hopper-73 to the transportation pipe. This is because, in the case of pneumatic transportation, the adsorbent can be quantitatively discharged naturally by the flow of air, and the adsorbent can be quantitatively discharged by appropriately selecting the size of the discharge port of the hopper. .
【００６０】以上、空気輸送を採用することにより、吸
着塔２０の吸着塔底部２２における付帯機器が簡略化で
きることを説明した。As described above, it has been explained that by adopting pneumatic transportation, incidental equipment at the adsorption tower bottom portion 22 of the adsorption tower 20 can be simplified.
【００６１】簡略化は上記に限られず、例えば吸着塔頂
部などの他の箇所においても同様に簡略化を図ることが
できる。The simplification is not limited to the above. For example, the simplification can be achieved at other places such as the top of the adsorption tower.
【００６２】本発明において用いる炭素質吸着材として
は特に制限がないが、活性炭や活性コークスを例示でき
る。空気輸送量等は、吸着塔、再生装置の能力に応じて
決定される当業者の設計事項である。The carbonaceous adsorbent used in the present invention is not particularly limited, but examples thereof include activated carbon and activated coke. The air transportation amount and the like are design items of those skilled in the art, which are determined according to the capabilities of the adsorption tower and the regenerator.
【００６３】本発明排ガス処理装置の吸着塔の構造、再
生装置の構造等は従来公知のもので、これらの運転条件
等も、従来公知の排ガス処理装置の運転条件に準じる。The structure of the adsorption tower and the structure of the regenerator of the exhaust gas treating apparatus of the present invention are conventionally known, and the operating conditions thereof are also in accordance with the operating conditions of the conventionally known exhaust gas treating apparatus.
【００６４】[0064]
【実施例】実施例１
下記排ガスを処理するため、図２に示すフローの排ガス
処理装置を製造した。Example 1 An exhaust gas treating apparatus having a flow shown in FIG. 2 was manufactured to treat the following exhaust gas.
【００６５】（排ガス）
処理量：１９２００ｍ3Ｎ／ｈ（Wet Base)
温度： １７０℃
水分： ３１．５％(Wet Base)
（排ガス処理装置）
吸着材： 活性コークス
吸着塔： ３．６ｍ（幅）ｘ２．５ｍ（厚さ）ｘ１０．
３ｍ（高さ）
ＳＶ値： １０００ｈ-1
再生装置：分級機のみ
送風機： ６００ｍ3Ｎ／ｈ （空気）
製造した装置は空気輸送を採用しているのでコンパクト
であった。(Exhaust gas) Treated amount: 19200 m 3 N / h (Wet Base) Temperature: 170 ° C. Moisture: 31.5% (Wet Base) (Exhaust gas treatment device) Adsorbent: Active coke adsorption tower: 3.6 m (width) ) × 2.5 m (thickness) × 10.
3m (height) SV value: 1000h -1 Regeneration device: Classifier only Blower: 600m 3 N / h (air) The manufactured device was compact because it adopted pneumatic transportation.
【００６６】[0066]
【発明の効果】本発明排ガス処理装置においては、吸着
材の輸送手段として空気輸送を採用したので、輸送手段
が簡素化でき、排ガス処理装置全体が小型化できる。更
に、空気輸送は、故障が少なく、自動化が簡単で効率の
良い排ガス処理装置を実現できる。In the exhaust gas treating apparatus of the present invention, pneumatic transportation is adopted as the transporting means for the adsorbent, so that the transporting means can be simplified and the exhaust gas treating apparatus as a whole can be miniaturized. Furthermore, pneumatic transportation can realize an exhaust gas treatment device with few failures, simple automation, and high efficiency.
【図１】本発明排ガス処理装置の一例を示すフロー図で
ある。FIG. 1 is a flow chart showing an example of an exhaust gas treating apparatus of the present invention.
【図２】本発明排ガス処理装置の他の例を示すフロー図
である。FIG. 2 is a flowchart showing another example of the exhaust gas treating apparatus of the present invention.
【図３】吸着塔の付帯機器の構成例を示す説明図で、
（ａ）は従来の付帯機器の例、（ｂ）は本発明に用いる
付帯機器の一例を示す。FIG. 3 is an explanatory diagram showing a configuration example of auxiliary equipment of an adsorption tower,
(A) shows an example of a conventional accessory device, (b) shows an example of an accessory device used in the present invention.
【図４】従来の排ガス処理装置の構成例を示すフロー図
である。FIG. 4 is a flowchart showing a configuration example of a conventional exhaust gas treatment device.
１０ 排ガス供給ライン １２ 排出ライン ２０ 吸着塔 ２２ 吸着塔底部 ２４ 吸着塔頂部 ３０ 炭素質吸着材 ３１、３２ 輸送手段 ３５、３６ 自動弁 ４０ 再生装置 ４１ 風力分級機 ５０、７１、７２、７３、７４ ホッパ− ６０ 送風機 ６１、６２、６３、６４、６５、６６ ライン ８１、８２ 定量供給機 ９１、９２、９３ 自動弁 10 Exhaust gas supply line 12 discharge line 20 adsorption tower 22 Bottom of adsorption tower 24 Top of adsorption tower 30 carbonaceous adsorbent 31, 32 means of transport 35, 36 Automatic valve 40 playback device 41 wind classifier 50, 71, 72, 73, 74 Hopper 60 blower 61, 62, 63, 64, 65, 66 lines 81, 82 fixed quantity feeder 91, 92, 93 Automatic valve
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｂ０１Ｄ 53/81 Ｂ０１Ｄ 53/34 １３４Ｅ Ｂ０１Ｊ 8/12 ３３１ １３６Ｚ Ｂ０７Ｂ 4/08 Ｆターム(参考） 4D002 AA02 AA12 AA21 AA28 AC01 AC02 AC04 BA04 CA08 DA41 EA07 EA08 HA10 4D021 FA09 GA01 GA12 HA10 4G070 AA01 AB06 BB21 CA13 CA26 CB01 CB06 CB11 CB19 DA21─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. 7 Identification code FI theme code (reference) B01D 53/81 B01D 53/34 134E B01J 8/12 331 136Z B07B 4/08 F term (reference) 4D002 AA02 AA12 AA21 AA28 AC01 AC02 AC04 BA04 CA08 DA41 EA07 EA08 HA10 4D021 FA09 GA01 GA12 HA10 4G070 AA01 AB06 BB21 CA13 CA26 CB01 CB06 CB11 CB19 DA21
Claims (4)
を充填した移動層式の吸着塔と、有害物質の除去性能が
低下した吸着材を再生処理する再生装置と、吸着塔から
再生装置へ有害物質の除去能力が低下した吸着材を送る
輸送手段と、再生した吸着材を再生装置から吸着塔へ送
る輸送手段とを備える排ガス処理装置において、前記各
輸送手段の少なくとも一部が送風機と連結した空気輸送
ラインからなることを特徴とする排ガス処理装置。1. A moving bed type adsorption tower filled with a carbonaceous adsorbent for removing harmful substances in exhaust gas, a regenerator for regenerating the adsorbent having reduced harmful substance removal performance, and a regenerating device from the adsorption tower. In an exhaust gas treatment apparatus comprising a transportation means for sending an adsorbent having a reduced ability to remove harmful substances and a transportation means for sending a regenerated adsorbent from a regenerator to an adsorption tower, at least a part of each of the transportation means is a blower. An exhaust gas treatment device comprising a connected air transportation line.
を介装してなり、前記弁を開閉することにより吸着材の
輸送を間欠的に行う請求項１に記載の排ガス処理装置。2. The exhaust gas treating apparatus according to claim 1, wherein a valve is provided between the air transportation line and the blower, and the adsorbent is intermittently transported by opening and closing the valve.
介して１台の送風機に連結してなり、各弁を切替えるこ
とにより１台の送風機を２以上の空気輸送ラインで共用
する請求項２に記載の排ガス処理装置。3. The two or more air transportation lines are connected to one blower via respective valves, and one fan is shared by two or more air transportation lines by switching each valve. The exhaust gas treatment device according to.
する風力分級機を備えると共に、前記送風機と分級機と
を連結する分級用空気供給ラインを備えてなり、１台の
送風機で空気輸送ライン用空気と風力分級機の分級用空
気とを供給する請求項２又は３に記載の排ガス処理装
置。4. The regenerating apparatus includes an air classifier that removes fine powder from the adsorbent, and an air supply line for classification that connects the blower and the classifier, and the air is transported by one blower. The exhaust gas treatment device according to claim 2 or 3, wherein line air and air for classification of a wind force classifier are supplied.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001250077A JP4846939B2 (en) | 2001-08-21 | 2001-08-21 | Exhaust gas treatment equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001250077A JP4846939B2 (en) | 2001-08-21 | 2001-08-21 | Exhaust gas treatment equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003053135A true JP2003053135A (en) | 2003-02-25 |
| JP4846939B2 JP4846939B2 (en) | 2011-12-28 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005270749A (en) * | 2004-03-24 | 2005-10-06 | Jfe Steel Kk | Exhaust gas treatment apparatus |
| KR101237084B1 (en) | 2010-11-29 | 2013-02-25 | 현대제철 주식회사 | Treating apparatus for waste gas in sintering machine and treating method thereof |
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| JPS5298678A (en) * | 1976-02-16 | 1977-08-18 | Nippei Sangyo Kk | Continuous adsorption and deadsorption method and apparatus |
| JPS59193582A (en) * | 1983-04-18 | 1984-11-02 | Toshiba Corp | Head slider support mechanism |
| JPS61163033A (en) * | 1985-01-12 | 1986-07-23 | Nippon Soken Inc | Rotary seat for car |
| JPH05261243A (en) * | 1992-03-19 | 1993-10-12 | Mitsui Mining Co Ltd | Exhaust gas treatment |
| JPH06170160A (en) * | 1992-12-08 | 1994-06-21 | Mitsui Mining Co Ltd | Equipment for separating and removing fine powder |
| JPH07291617A (en) * | 1994-04-26 | 1995-11-07 | Ask Tekunika:Kk | Method for purifying allophane |
| JP2000061253A (en) * | 1998-08-24 | 2000-02-29 | Mitsui Mining Co Ltd | Dry type exhaust gas treatment and treating device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005270749A (en) * | 2004-03-24 | 2005-10-06 | Jfe Steel Kk | Exhaust gas treatment apparatus |
| JP4552474B2 (en) * | 2004-03-24 | 2010-09-29 | Ｊｆｅスチール株式会社 | Exhaust gas treatment equipment |
| KR101237084B1 (en) | 2010-11-29 | 2013-02-25 | 현대제철 주식회사 | Treating apparatus for waste gas in sintering machine and treating method thereof |
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| JP4846939B2 (en) | 2011-12-28 |
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